From: Ian Coleman Date: Thu, 19 Dec 2019 03:32:13 +0000 (+1100) Subject: Minify third party libraries X-Git-Url: https://git.immae.eu/?p=perso%2FImmae%2FProjets%2FCryptomonnaies%2FBIP39.git;a=commitdiff_plain;h=6973e692b09deec0db10813ecaf65ed897ed745d Minify third party libraries --- diff --git a/libs/combined/package.json b/libs/combined/package.json index 69bda17..6cfc644 100644 --- a/libs/combined/package.json +++ b/libs/combined/package.json @@ -2,7 +2,7 @@ "name": "bip39-tool-external-libs", "version": "0.4.0", "scripts": { - "build": "browserify index.js --standalone libs > ../../src/js/bip39-libs.js" + "build": "browserify index.js --standalone libs | uglifyjs -c > ../../src/js/bip39-libs.js" }, "dependencies": { "base-x": "3.0.7", diff --git a/src/js/bip39-libs.js b/src/js/bip39-libs.js index 16f6d44..54a89a8 100644 --- a/src/js/bip39-libs.js +++ b/src/js/bip39-libs.js @@ -1,115830 +1 @@ -(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.libs = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i} Promisified function - */ -function asPromise(fn, ctx/*, varargs */) { - var params = new Array(arguments.length - 1), - offset = 0, - index = 2, - pending = true; - while (index < arguments.length) - params[offset++] = arguments[index++]; - return new Promise(function executor(resolve, reject) { - params[offset] = function callback(err/*, varargs */) { - if (pending) { - pending = false; - if (err) - reject(err); - else { - var params = new Array(arguments.length - 1), - offset = 0; - while (offset < params.length) - params[offset++] = arguments[offset]; - resolve.apply(null, params); - } - } - }; - try { - fn.apply(ctx || null, params); - } catch (err) { - if (pending) { - pending = false; - reject(err); - } - } - }); -} - -},{}],3:[function(require,module,exports){ -"use strict"; - -/** - * A minimal base64 implementation for number arrays. - * @memberof util - * @namespace - */ -var base64 = exports; - -/** - * Calculates the byte length of a base64 encoded string. - * @param {string} string Base64 encoded string - * @returns {number} Byte length - */ -base64.length = function length(string) { - var p = string.length; - if (!p) - return 0; - var n = 0; - while (--p % 4 > 1 && string.charAt(p) === "=") - ++n; - return Math.ceil(string.length * 3) / 4 - n; -}; - -// Base64 encoding table -var b64 = new Array(64); - -// Base64 decoding table -var s64 = new Array(123); - -// 65..90, 97..122, 48..57, 43, 47 -for (var i = 0; i < 64;) - s64[b64[i] = i < 26 ? i + 65 : i < 52 ? i + 71 : i < 62 ? i - 4 : i - 59 | 43] = i++; - -/** - * Encodes a buffer to a base64 encoded string. - * @param {Uint8Array} buffer Source buffer - * @param {number} start Source start - * @param {number} end Source end - * @returns {string} Base64 encoded string - */ -base64.encode = function encode(buffer, start, end) { - var parts = null, - chunk = []; - var i = 0, // output index - j = 0, // goto index - t; // temporary - while (start < end) { - var b = buffer[start++]; - switch (j) { - case 0: - chunk[i++] = b64[b >> 2]; - t = (b & 3) << 4; - j = 1; - break; - case 1: - chunk[i++] = b64[t | b >> 4]; - t = (b & 15) << 2; - j = 2; - break; - case 2: - chunk[i++] = b64[t | b >> 6]; - chunk[i++] = b64[b & 63]; - j = 0; - break; - } - if (i > 8191) { - (parts || (parts = [])).push(String.fromCharCode.apply(String, chunk)); - i = 0; - } - } - if (j) { - chunk[i++] = b64[t]; - chunk[i++] = 61; - if (j === 1) - chunk[i++] = 61; - } - if (parts) { - if (i) - parts.push(String.fromCharCode.apply(String, chunk.slice(0, i))); - return parts.join(""); - } - return String.fromCharCode.apply(String, chunk.slice(0, i)); -}; - -var invalidEncoding = "invalid encoding"; - -/** - * Decodes a base64 encoded string to a buffer. - * @param {string} string Source string - * @param {Uint8Array} buffer Destination buffer - * @param {number} offset Destination offset - * @returns {number} Number of bytes written - * @throws {Error} If encoding is invalid - */ -base64.decode = function decode(string, buffer, offset) { - var start = offset; - var j = 0, // goto index - t; // temporary - for (var i = 0; i < string.length;) { - var c = string.charCodeAt(i++); - if (c === 61 && j > 1) - break; - if ((c = s64[c]) === undefined) - throw Error(invalidEncoding); - switch (j) { - case 0: - t = c; - j = 1; - break; - case 1: - buffer[offset++] = t << 2 | (c & 48) >> 4; - t = c; - j = 2; - break; - case 2: - buffer[offset++] = (t & 15) << 4 | (c & 60) >> 2; - t = c; - j = 3; - break; - case 3: - buffer[offset++] = (t & 3) << 6 | c; - j = 0; - break; - } - } - if (j === 1) - throw Error(invalidEncoding); - return offset - start; -}; - -/** - * Tests if the specified string appears to be base64 encoded. - * @param {string} string String to test - * @returns {boolean} `true` if probably base64 encoded, otherwise false - */ -base64.test = function test(string) { - return /^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$/.test(string); -}; - -},{}],4:[function(require,module,exports){ -"use strict"; -module.exports = codegen; - -/** - * Begins generating a function. - * @memberof util - * @param {string[]} functionParams Function parameter names - * @param {string} [functionName] Function name if not anonymous - * @returns {Codegen} Appender that appends code to the function's body - */ -function codegen(functionParams, functionName) { - - /* istanbul ignore if */ - if (typeof functionParams === "string") { - functionName = functionParams; - functionParams = undefined; - } - - var body = []; - - /** - * Appends code to the function's body or finishes generation. - * @typedef Codegen - * @type {function} - * @param {string|Object.} [formatStringOrScope] Format string or, to finish the function, an object of additional scope variables, if any - * @param {...*} [formatParams] Format parameters - * @returns {Codegen|Function} Itself or the generated function if finished - * @throws {Error} If format parameter counts do not match - */ - - function Codegen(formatStringOrScope) { - // note that explicit array handling below makes this ~50% faster - - // finish the function - if (typeof formatStringOrScope !== "string") { - var source = toString(); - if (codegen.verbose) - console.log("codegen: " + source); // eslint-disable-line no-console - source = "return " + source; - if (formatStringOrScope) { - var scopeKeys = Object.keys(formatStringOrScope), - scopeParams = new Array(scopeKeys.length + 1), - scopeValues = new Array(scopeKeys.length), - scopeOffset = 0; - while (scopeOffset < scopeKeys.length) { - scopeParams[scopeOffset] = scopeKeys[scopeOffset]; - scopeValues[scopeOffset] = formatStringOrScope[scopeKeys[scopeOffset++]]; - } - scopeParams[scopeOffset] = source; - return Function.apply(null, scopeParams).apply(null, scopeValues); // eslint-disable-line no-new-func - } - return Function(source)(); // eslint-disable-line no-new-func - } - - // otherwise append to body - var formatParams = new Array(arguments.length - 1), - formatOffset = 0; - while (formatOffset < formatParams.length) - formatParams[formatOffset] = arguments[++formatOffset]; - formatOffset = 0; - formatStringOrScope = formatStringOrScope.replace(/%([%dfijs])/g, function replace($0, $1) { - var value = formatParams[formatOffset++]; - switch ($1) { - case "d": case "f": return String(Number(value)); - case "i": return String(Math.floor(value)); - case "j": return JSON.stringify(value); - case "s": return String(value); - } - return "%"; - }); - if (formatOffset !== formatParams.length) - throw Error("parameter count mismatch"); - body.push(formatStringOrScope); - return Codegen; - } - - function toString(functionNameOverride) { - return "function " + (functionNameOverride || functionName || "") + "(" + (functionParams && functionParams.join(",") || "") + "){\n " + body.join("\n ") + "\n}"; - } - - Codegen.toString = toString; - return Codegen; -} - -/** - * Begins generating a function. - * @memberof util - * @function codegen - * @param {string} [functionName] Function name if not anonymous - * @returns {Codegen} Appender that appends code to the function's body - * @variation 2 - */ - -/** - * When set to `true`, codegen will log generated code to console. Useful for debugging. - * @name util.codegen.verbose - * @type {boolean} - */ -codegen.verbose = false; - -},{}],5:[function(require,module,exports){ -"use strict"; -module.exports = EventEmitter; - -/** - * Constructs a new event emitter instance. - * @classdesc A minimal event emitter. - * @memberof util - * @constructor - */ -function EventEmitter() { - - /** - * Registered listeners. - * @type {Object.} - * @private - */ - this._listeners = {}; -} - -/** - * Registers an event listener. - * @param {string} evt Event name - * @param {function} fn Listener - * @param {*} [ctx] Listener context - * @returns {util.EventEmitter} `this` - */ -EventEmitter.prototype.on = function on(evt, fn, ctx) { - (this._listeners[evt] || (this._listeners[evt] = [])).push({ - fn : fn, - ctx : ctx || this - }); - return this; -}; - -/** - * Removes an event listener or any matching listeners if arguments are omitted. - * @param {string} [evt] Event name. Removes all listeners if omitted. - * @param {function} [fn] Listener to remove. Removes all listeners of `evt` if omitted. - * @returns {util.EventEmitter} `this` - */ -EventEmitter.prototype.off = function off(evt, fn) { - if (evt === undefined) - this._listeners = {}; - else { - if (fn === undefined) - this._listeners[evt] = []; - else { - var listeners = this._listeners[evt]; - for (var i = 0; i < listeners.length;) - if (listeners[i].fn === fn) - listeners.splice(i, 1); - else - ++i; - } - } - return this; -}; - -/** - * Emits an event by calling its listeners with the specified arguments. - * @param {string} evt Event name - * @param {...*} args Arguments - * @returns {util.EventEmitter} `this` - */ -EventEmitter.prototype.emit = function emit(evt) { - var listeners = this._listeners[evt]; - if (listeners) { - var args = [], - i = 1; - for (; i < arguments.length;) - args.push(arguments[i++]); - for (i = 0; i < listeners.length;) - listeners[i].fn.apply(listeners[i++].ctx, args); - } - return this; -}; - -},{}],6:[function(require,module,exports){ -"use strict"; -module.exports = fetch; - -var asPromise = require("@protobufjs/aspromise"), - inquire = require("@protobufjs/inquire"); - -var fs = inquire("fs"); - -/** - * Node-style callback as used by {@link util.fetch}. - * @typedef FetchCallback - * @type {function} - * @param {?Error} error Error, if any, otherwise `null` - * @param {string} [contents] File contents, if there hasn't been an error - * @returns {undefined} - */ - -/** - * Options as used by {@link util.fetch}. - * @typedef FetchOptions - * @type {Object} - * @property {boolean} [binary=false] Whether expecting a binary response - * @property {boolean} [xhr=false] If `true`, forces the use of XMLHttpRequest - */ - -/** - * Fetches the contents of a file. - * @memberof util - * @param {string} filename File path or url - * @param {FetchOptions} options Fetch options - * @param {FetchCallback} callback Callback function - * @returns {undefined} - */ -function fetch(filename, options, callback) { - if (typeof options === "function") { - callback = options; - options = {}; - } else if (!options) - options = {}; - - if (!callback) - return asPromise(fetch, this, filename, options); // eslint-disable-line no-invalid-this - - // if a node-like filesystem is present, try it first but fall back to XHR if nothing is found. - if (!options.xhr && fs && fs.readFile) - return fs.readFile(filename, function fetchReadFileCallback(err, contents) { - return err && typeof XMLHttpRequest !== "undefined" - ? fetch.xhr(filename, options, callback) - : err - ? callback(err) - : callback(null, options.binary ? contents : contents.toString("utf8")); - }); - - // use the XHR version otherwise. - return fetch.xhr(filename, options, callback); -} - -/** - * Fetches the contents of a file. - * @name util.fetch - * @function - * @param {string} path File path or url - * @param {FetchCallback} callback Callback function - * @returns {undefined} - * @variation 2 - */ - -/** - * Fetches the contents of a file. - * @name util.fetch - * @function - * @param {string} path File path or url - * @param {FetchOptions} [options] Fetch options - * @returns {Promise} Promise - * @variation 3 - */ - -/**/ -fetch.xhr = function fetch_xhr(filename, options, callback) { - var xhr = new XMLHttpRequest(); - xhr.onreadystatechange /* works everywhere */ = function fetchOnReadyStateChange() { - - if (xhr.readyState !== 4) - return undefined; - - // local cors security errors return status 0 / empty string, too. afaik this cannot be - // reliably distinguished from an actually empty file for security reasons. feel free - // to send a pull request if you are aware of a solution. - if (xhr.status !== 0 && xhr.status !== 200) - return callback(Error("status " + xhr.status)); - - // if binary data is expected, make sure that some sort of array is returned, even if - // ArrayBuffers are not supported. the binary string fallback, however, is unsafe. - if (options.binary) { - var buffer = xhr.response; - if (!buffer) { - buffer = []; - for (var i = 0; i < xhr.responseText.length; ++i) - buffer.push(xhr.responseText.charCodeAt(i) & 255); - } - return callback(null, typeof Uint8Array !== "undefined" ? new Uint8Array(buffer) : buffer); - } - return callback(null, xhr.responseText); - }; - - if (options.binary) { - // ref: https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/Sending_and_Receiving_Binary_Data#Receiving_binary_data_in_older_browsers - if ("overrideMimeType" in xhr) - xhr.overrideMimeType("text/plain; charset=x-user-defined"); - xhr.responseType = "arraybuffer"; - } - - xhr.open("GET", filename); - xhr.send(); -}; - -},{"@protobufjs/aspromise":2,"@protobufjs/inquire":8}],7:[function(require,module,exports){ -"use strict"; - -module.exports = factory(factory); - -/** - * Reads / writes floats / doubles from / to buffers. - * @name util.float - * @namespace - */ - -/** - * Writes a 32 bit float to a buffer using little endian byte order. - * @name util.float.writeFloatLE - * @function - * @param {number} val Value to write - * @param {Uint8Array} buf Target buffer - * @param {number} pos Target buffer offset - * @returns {undefined} - */ - -/** - * Writes a 32 bit float to a buffer using big endian byte order. - * @name util.float.writeFloatBE - * @function - * @param {number} val Value to write - * @param {Uint8Array} buf Target buffer - * @param {number} pos Target buffer offset - * @returns {undefined} - */ - -/** - * Reads a 32 bit float from a buffer using little endian byte order. - * @name util.float.readFloatLE - * @function - * @param {Uint8Array} buf Source buffer - * @param {number} pos Source buffer offset - * @returns {number} Value read - */ - -/** - * Reads a 32 bit float from a buffer using big endian byte order. - * @name util.float.readFloatBE - * @function - * @param {Uint8Array} buf Source buffer - * @param {number} pos Source buffer offset - * @returns {number} Value read - */ - -/** - * Writes a 64 bit double to a buffer using little endian byte order. - * @name util.float.writeDoubleLE - * @function - * @param {number} val Value to write - * @param {Uint8Array} buf Target buffer - * @param {number} pos Target buffer offset - * @returns {undefined} - */ - -/** - * Writes a 64 bit double to a buffer using big endian byte order. - * @name util.float.writeDoubleBE - * @function - * @param {number} val Value to write - * @param {Uint8Array} buf Target buffer - * @param {number} pos Target buffer offset - * @returns {undefined} - */ - -/** - * Reads a 64 bit double from a buffer using little endian byte order. - * @name util.float.readDoubleLE - * @function - * @param {Uint8Array} buf Source buffer - * @param {number} pos Source buffer offset - * @returns {number} Value read - */ - -/** - * Reads a 64 bit double from a buffer using big endian byte order. - * @name util.float.readDoubleBE - * @function - * @param {Uint8Array} buf Source buffer - * @param {number} pos Source buffer offset - * @returns {number} Value read - */ - -// Factory function for the purpose of node-based testing in modified global environments -function factory(exports) { - - // float: typed array - if (typeof Float32Array !== "undefined") (function() { - - var f32 = new Float32Array([ -0 ]), - f8b = new Uint8Array(f32.buffer), - le = f8b[3] === 128; - - function writeFloat_f32_cpy(val, buf, pos) { - f32[0] = val; - buf[pos ] = f8b[0]; - buf[pos + 1] = f8b[1]; - buf[pos + 2] = f8b[2]; - buf[pos + 3] = f8b[3]; - } - - function writeFloat_f32_rev(val, buf, pos) { - f32[0] = val; - buf[pos ] = f8b[3]; - buf[pos + 1] = f8b[2]; - buf[pos + 2] = f8b[1]; - buf[pos + 3] = f8b[0]; - } - - /* istanbul ignore next */ - exports.writeFloatLE = le ? writeFloat_f32_cpy : writeFloat_f32_rev; - /* istanbul ignore next */ - exports.writeFloatBE = le ? writeFloat_f32_rev : writeFloat_f32_cpy; - - function readFloat_f32_cpy(buf, pos) { - f8b[0] = buf[pos ]; - f8b[1] = buf[pos + 1]; - f8b[2] = buf[pos + 2]; - f8b[3] = buf[pos + 3]; - return f32[0]; - } - - function readFloat_f32_rev(buf, pos) { - f8b[3] = buf[pos ]; - f8b[2] = buf[pos + 1]; - f8b[1] = buf[pos + 2]; - f8b[0] = buf[pos + 3]; - return f32[0]; - } - - /* istanbul ignore next */ - exports.readFloatLE = le ? readFloat_f32_cpy : readFloat_f32_rev; - /* istanbul ignore next */ - exports.readFloatBE = le ? readFloat_f32_rev : readFloat_f32_cpy; - - // float: ieee754 - })(); else (function() { - - function writeFloat_ieee754(writeUint, val, buf, pos) { - var sign = val < 0 ? 1 : 0; - if (sign) - val = -val; - if (val === 0) - writeUint(1 / val > 0 ? /* positive */ 0 : /* negative 0 */ 2147483648, buf, pos); - else if (isNaN(val)) - writeUint(2143289344, buf, pos); - else if (val > 3.4028234663852886e+38) // +-Infinity - writeUint((sign << 31 | 2139095040) >>> 0, buf, pos); - else if (val < 1.1754943508222875e-38) // denormal - writeUint((sign << 31 | Math.round(val / 1.401298464324817e-45)) >>> 0, buf, pos); - else { - var exponent = Math.floor(Math.log(val) / Math.LN2), - mantissa = Math.round(val * Math.pow(2, -exponent) * 8388608) & 8388607; - writeUint((sign << 31 | exponent + 127 << 23 | mantissa) >>> 0, buf, pos); - } - } - - exports.writeFloatLE = writeFloat_ieee754.bind(null, writeUintLE); - exports.writeFloatBE = writeFloat_ieee754.bind(null, writeUintBE); - - function readFloat_ieee754(readUint, buf, pos) { - var uint = readUint(buf, pos), - sign = (uint >> 31) * 2 + 1, - exponent = uint >>> 23 & 255, - mantissa = uint & 8388607; - return exponent === 255 - ? mantissa - ? NaN - : sign * Infinity - : exponent === 0 // denormal - ? sign * 1.401298464324817e-45 * mantissa - : sign * Math.pow(2, exponent - 150) * (mantissa + 8388608); - } - - exports.readFloatLE = readFloat_ieee754.bind(null, readUintLE); - exports.readFloatBE = readFloat_ieee754.bind(null, readUintBE); - - })(); - - // double: typed array - if (typeof Float64Array !== "undefined") (function() { - - var f64 = new Float64Array([-0]), - f8b = new Uint8Array(f64.buffer), - le = f8b[7] === 128; - - function writeDouble_f64_cpy(val, buf, pos) { - f64[0] = val; - buf[pos ] = f8b[0]; - buf[pos + 1] = f8b[1]; - buf[pos + 2] = f8b[2]; - buf[pos + 3] = f8b[3]; - buf[pos + 4] = f8b[4]; - buf[pos + 5] = f8b[5]; - buf[pos + 6] = f8b[6]; - buf[pos + 7] = f8b[7]; - } - - function writeDouble_f64_rev(val, buf, pos) { - f64[0] = val; - buf[pos ] = f8b[7]; - buf[pos + 1] = f8b[6]; - buf[pos + 2] = f8b[5]; - buf[pos + 3] = f8b[4]; - buf[pos + 4] = f8b[3]; - buf[pos + 5] = f8b[2]; - buf[pos + 6] = f8b[1]; - buf[pos + 7] = f8b[0]; - } - - /* istanbul ignore next */ - exports.writeDoubleLE = le ? writeDouble_f64_cpy : writeDouble_f64_rev; - /* istanbul ignore next */ - exports.writeDoubleBE = le ? writeDouble_f64_rev : writeDouble_f64_cpy; - - function readDouble_f64_cpy(buf, pos) { - f8b[0] = buf[pos ]; - f8b[1] = buf[pos + 1]; - f8b[2] = buf[pos + 2]; - f8b[3] = buf[pos + 3]; - f8b[4] = buf[pos + 4]; - f8b[5] = buf[pos + 5]; - f8b[6] = buf[pos + 6]; - f8b[7] = buf[pos + 7]; - return f64[0]; - } - - function readDouble_f64_rev(buf, pos) { - f8b[7] = buf[pos ]; - f8b[6] = buf[pos + 1]; - f8b[5] = buf[pos + 2]; - f8b[4] = buf[pos + 3]; - f8b[3] = buf[pos + 4]; - f8b[2] = buf[pos + 5]; - f8b[1] = buf[pos + 6]; - f8b[0] = buf[pos + 7]; - return f64[0]; - } - - /* istanbul ignore next */ - exports.readDoubleLE = le ? readDouble_f64_cpy : readDouble_f64_rev; - /* istanbul ignore next */ - exports.readDoubleBE = le ? readDouble_f64_rev : readDouble_f64_cpy; - - // double: ieee754 - })(); else (function() { - - function writeDouble_ieee754(writeUint, off0, off1, val, buf, pos) { - var sign = val < 0 ? 1 : 0; - if (sign) - val = -val; - if (val === 0) { - writeUint(0, buf, pos + off0); - writeUint(1 / val > 0 ? /* positive */ 0 : /* negative 0 */ 2147483648, buf, pos + off1); - } else if (isNaN(val)) { - writeUint(0, buf, pos + off0); - writeUint(2146959360, buf, pos + off1); - } else if (val > 1.7976931348623157e+308) { // +-Infinity - writeUint(0, buf, pos + off0); - writeUint((sign << 31 | 2146435072) >>> 0, buf, pos + off1); - } else { - var mantissa; - if (val < 2.2250738585072014e-308) { // denormal - mantissa = val / 5e-324; - writeUint(mantissa >>> 0, buf, pos + off0); - writeUint((sign << 31 | mantissa / 4294967296) >>> 0, buf, pos + off1); - } else { - var exponent = Math.floor(Math.log(val) / Math.LN2); - if (exponent === 1024) - exponent = 1023; - mantissa = val * Math.pow(2, -exponent); - writeUint(mantissa * 4503599627370496 >>> 0, buf, pos + off0); - writeUint((sign << 31 | exponent + 1023 << 20 | mantissa * 1048576 & 1048575) >>> 0, buf, pos + off1); - } - } - } - - exports.writeDoubleLE = writeDouble_ieee754.bind(null, writeUintLE, 0, 4); - exports.writeDoubleBE = writeDouble_ieee754.bind(null, writeUintBE, 4, 0); - - function readDouble_ieee754(readUint, off0, off1, buf, pos) { - var lo = readUint(buf, pos + off0), - hi = readUint(buf, pos + off1); - var sign = (hi >> 31) * 2 + 1, - exponent = hi >>> 20 & 2047, - mantissa = 4294967296 * (hi & 1048575) + lo; - return exponent === 2047 - ? mantissa - ? NaN - : sign * Infinity - : exponent === 0 // denormal - ? sign * 5e-324 * mantissa - : sign * Math.pow(2, exponent - 1075) * (mantissa + 4503599627370496); - } - - exports.readDoubleLE = readDouble_ieee754.bind(null, readUintLE, 0, 4); - exports.readDoubleBE = readDouble_ieee754.bind(null, readUintBE, 4, 0); - - })(); - - return exports; -} - -// uint helpers - -function writeUintLE(val, buf, pos) { - buf[pos ] = val & 255; - buf[pos + 1] = val >>> 8 & 255; - buf[pos + 2] = val >>> 16 & 255; - buf[pos + 3] = val >>> 24; -} - -function writeUintBE(val, buf, pos) { - buf[pos ] = val >>> 24; - buf[pos + 1] = val >>> 16 & 255; - buf[pos + 2] = val >>> 8 & 255; - buf[pos + 3] = val & 255; -} - -function readUintLE(buf, pos) { - return (buf[pos ] - | buf[pos + 1] << 8 - | buf[pos + 2] << 16 - | buf[pos + 3] << 24) >>> 0; -} - -function readUintBE(buf, pos) { - return (buf[pos ] << 24 - | buf[pos + 1] << 16 - | buf[pos + 2] << 8 - | buf[pos + 3]) >>> 0; -} - -},{}],8:[function(require,module,exports){ -"use strict"; -module.exports = inquire; - -/** - * Requires a module only if available. - * @memberof util - * @param {string} moduleName Module to require - * @returns {?Object} Required module if available and not empty, otherwise `null` - */ -function inquire(moduleName) { - try { - var mod = eval("quire".replace(/^/,"re"))(moduleName); // eslint-disable-line no-eval - if (mod && (mod.length || Object.keys(mod).length)) - return mod; - } catch (e) {} // eslint-disable-line no-empty - return null; -} - -},{}],9:[function(require,module,exports){ -"use strict"; - -/** - * A minimal path module to resolve Unix, Windows and URL paths alike. - * @memberof util - * @namespace - */ -var path = exports; - -var isAbsolute = -/** - * Tests if the specified path is absolute. - * @param {string} path Path to test - * @returns {boolean} `true` if path is absolute - */ -path.isAbsolute = function isAbsolute(path) { - return /^(?:\/|\w+:)/.test(path); -}; - -var normalize = -/** - * Normalizes the specified path. - * @param {string} path Path to normalize - * @returns {string} Normalized path - */ -path.normalize = function normalize(path) { - path = path.replace(/\\/g, "/") - .replace(/\/{2,}/g, "/"); - var parts = path.split("/"), - absolute = isAbsolute(path), - prefix = ""; - if (absolute) - prefix = parts.shift() + "/"; - for (var i = 0; i < parts.length;) { - if (parts[i] === "..") { - if (i > 0 && parts[i - 1] !== "..") - parts.splice(--i, 2); - else if (absolute) - parts.splice(i, 1); - else - ++i; - } else if (parts[i] === ".") - parts.splice(i, 1); - else - ++i; - } - return prefix + parts.join("/"); -}; - -/** - * Resolves the specified include path against the specified origin path. - * @param {string} originPath Path to the origin file - * @param {string} includePath Include path relative to origin path - * @param {boolean} [alreadyNormalized=false] `true` if both paths are already known to be normalized - * @returns {string} Path to the include file - */ -path.resolve = function resolve(originPath, includePath, alreadyNormalized) { - if (!alreadyNormalized) - includePath = normalize(includePath); - if (isAbsolute(includePath)) - return includePath; - if (!alreadyNormalized) - originPath = normalize(originPath); - return (originPath = originPath.replace(/(?:\/|^)[^/]+$/, "")).length ? normalize(originPath + "/" + includePath) : includePath; -}; - -},{}],10:[function(require,module,exports){ -"use strict"; -module.exports = pool; - -/** - * An allocator as used by {@link util.pool}. - * @typedef PoolAllocator - * @type {function} - * @param {number} size Buffer size - * @returns {Uint8Array} Buffer - */ - -/** - * A slicer as used by {@link util.pool}. - * @typedef PoolSlicer - * @type {function} - * @param {number} start Start offset - * @param {number} end End offset - * @returns {Uint8Array} Buffer slice - * @this {Uint8Array} - */ - -/** - * A general purpose buffer pool. - * @memberof util - * @function - * @param {PoolAllocator} alloc Allocator - * @param {PoolSlicer} slice Slicer - * @param {number} [size=8192] Slab size - * @returns {PoolAllocator} Pooled allocator - */ -function pool(alloc, slice, size) { - var SIZE = size || 8192; - var MAX = SIZE >>> 1; - var slab = null; - var offset = SIZE; - return function pool_alloc(size) { - if (size < 1 || size > MAX) - return alloc(size); - if (offset + size > SIZE) { - slab = alloc(SIZE); - offset = 0; - } - var buf = slice.call(slab, offset, offset += size); - if (offset & 7) // align to 32 bit - offset = (offset | 7) + 1; - return buf; - }; -} - -},{}],11:[function(require,module,exports){ -"use strict"; - -/** - * A minimal UTF8 implementation for number arrays. - * @memberof util - * @namespace - */ -var utf8 = exports; - -/** - * Calculates the UTF8 byte length of a string. - * @param {string} string String - * @returns {number} Byte length - */ -utf8.length = function utf8_length(string) { - var len = 0, - c = 0; - for (var i = 0; i < string.length; ++i) { - c = string.charCodeAt(i); - if (c < 128) - len += 1; - else if (c < 2048) - len += 2; - else if ((c & 0xFC00) === 0xD800 && (string.charCodeAt(i + 1) & 0xFC00) === 0xDC00) { - ++i; - len += 4; - } else - len += 3; - } - return len; -}; - -/** - * Reads UTF8 bytes as a string. - * @param {Uint8Array} buffer Source buffer - * @param {number} start Source start - * @param {number} end Source end - * @returns {string} String read - */ -utf8.read = function utf8_read(buffer, start, end) { - var len = end - start; - if (len < 1) - return ""; - var parts = null, - chunk = [], - i = 0, // char offset - t; // temporary - while (start < end) { - t = buffer[start++]; - if (t < 128) - chunk[i++] = t; - else if (t > 191 && t < 224) - chunk[i++] = (t & 31) << 6 | buffer[start++] & 63; - else if (t > 239 && t < 365) { - t = ((t & 7) << 18 | (buffer[start++] & 63) << 12 | (buffer[start++] & 63) << 6 | buffer[start++] & 63) - 0x10000; - chunk[i++] = 0xD800 + (t >> 10); - chunk[i++] = 0xDC00 + (t & 1023); - } else - chunk[i++] = (t & 15) << 12 | (buffer[start++] & 63) << 6 | buffer[start++] & 63; - if (i > 8191) { - (parts || (parts = [])).push(String.fromCharCode.apply(String, chunk)); - i = 0; - } - } - if (parts) { - if (i) - parts.push(String.fromCharCode.apply(String, chunk.slice(0, i))); - return parts.join(""); - } - return String.fromCharCode.apply(String, chunk.slice(0, i)); -}; - -/** - * Writes a string as UTF8 bytes. - * @param {string} string Source string - * @param {Uint8Array} buffer Destination buffer - * @param {number} offset Destination offset - * @returns {number} Bytes written - */ -utf8.write = function utf8_write(string, buffer, offset) { - var start = offset, - c1, // character 1 - c2; // character 2 - for (var i = 0; i < string.length; ++i) { - c1 = string.charCodeAt(i); - if (c1 < 128) { - buffer[offset++] = c1; - } else if (c1 < 2048) { - buffer[offset++] = c1 >> 6 | 192; - buffer[offset++] = c1 & 63 | 128; - } else if ((c1 & 0xFC00) === 0xD800 && ((c2 = string.charCodeAt(i + 1)) & 0xFC00) === 0xDC00) { - c1 = 0x10000 + ((c1 & 0x03FF) << 10) + (c2 & 0x03FF); - ++i; - buffer[offset++] = c1 >> 18 | 240; - buffer[offset++] = c1 >> 12 & 63 | 128; - buffer[offset++] = c1 >> 6 & 63 | 128; - buffer[offset++] = c1 & 63 | 128; - } else { - buffer[offset++] = c1 >> 12 | 224; - buffer[offset++] = c1 >> 6 & 63 | 128; - buffer[offset++] = c1 & 63 | 128; - } - } - return offset - start; -}; - -},{}],12:[function(require,module,exports){ -var asn1 = exports; - -asn1.bignum = require('bn.js'); - -asn1.define = require('./asn1/api').define; -asn1.base = require('./asn1/base'); -asn1.constants = require('./asn1/constants'); -asn1.decoders = require('./asn1/decoders'); -asn1.encoders = require('./asn1/encoders'); - -},{"./asn1/api":13,"./asn1/base":15,"./asn1/constants":19,"./asn1/decoders":21,"./asn1/encoders":24,"bn.js":108}],13:[function(require,module,exports){ -var asn1 = require('../asn1'); -var inherits = require('inherits'); - -var api = exports; - -api.define = function define(name, body) { - return new Entity(name, body); -}; - -function Entity(name, body) { - this.name = name; - this.body = body; - - this.decoders = {}; - this.encoders = {}; -}; - -Entity.prototype._createNamed = function createNamed(base) { - var named; - try { - named = require('vm').runInThisContext( - '(function ' + this.name + '(entity) {\n' + - ' this._initNamed(entity);\n' + - '})' - ); - } catch (e) { - named = function (entity) { - this._initNamed(entity); - }; - } - inherits(named, base); - named.prototype._initNamed = function initnamed(entity) { - base.call(this, entity); - }; - - return new named(this); -}; - -Entity.prototype._getDecoder = function _getDecoder(enc) { - enc = enc || 'der'; - // Lazily create decoder - if (!this.decoders.hasOwnProperty(enc)) - this.decoders[enc] = this._createNamed(asn1.decoders[enc]); - return this.decoders[enc]; -}; - -Entity.prototype.decode = function decode(data, enc, options) { - return this._getDecoder(enc).decode(data, options); -}; - -Entity.prototype._getEncoder = function _getEncoder(enc) { - enc = enc || 'der'; - // Lazily create encoder - if (!this.encoders.hasOwnProperty(enc)) - this.encoders[enc] = this._createNamed(asn1.encoders[enc]); - return this.encoders[enc]; -}; - -Entity.prototype.encode = function encode(data, enc, /* internal */ reporter) { - return this._getEncoder(enc).encode(data, reporter); -}; - -},{"../asn1":12,"inherits":396,"vm":831}],14:[function(require,module,exports){ -var inherits = require('inherits'); -var Reporter = require('../base').Reporter; -var Buffer = require('buffer').Buffer; - -function DecoderBuffer(base, options) { - Reporter.call(this, options); - if (!Buffer.isBuffer(base)) { - this.error('Input not Buffer'); - return; - } - - this.base = base; - this.offset = 0; - this.length = base.length; -} -inherits(DecoderBuffer, Reporter); -exports.DecoderBuffer = DecoderBuffer; - -DecoderBuffer.prototype.save = function save() { - return { offset: this.offset, reporter: Reporter.prototype.save.call(this) }; -}; - -DecoderBuffer.prototype.restore = function restore(save) { - // Return skipped data - var res = new DecoderBuffer(this.base); - res.offset = save.offset; - res.length = this.offset; - - this.offset = save.offset; - Reporter.prototype.restore.call(this, save.reporter); - - return res; -}; - -DecoderBuffer.prototype.isEmpty = function isEmpty() { - return this.offset === this.length; -}; - -DecoderBuffer.prototype.readUInt8 = function readUInt8(fail) { - if (this.offset + 1 <= this.length) - return this.base.readUInt8(this.offset++, true); - else - return this.error(fail || 'DecoderBuffer overrun'); -} - -DecoderBuffer.prototype.skip = function skip(bytes, fail) { - if (!(this.offset + bytes <= this.length)) - return this.error(fail || 'DecoderBuffer overrun'); - - var res = new DecoderBuffer(this.base); - - // Share reporter state - res._reporterState = this._reporterState; - - res.offset = this.offset; - res.length = this.offset + bytes; - this.offset += bytes; - return res; -} - -DecoderBuffer.prototype.raw = function raw(save) { - return this.base.slice(save ? save.offset : this.offset, this.length); -} - -function EncoderBuffer(value, reporter) { - if (Array.isArray(value)) { - this.length = 0; - this.value = value.map(function(item) { - if (!(item instanceof EncoderBuffer)) - item = new EncoderBuffer(item, reporter); - this.length += item.length; - return item; - }, this); - } else if (typeof value === 'number') { - if (!(0 <= value && value <= 0xff)) - return reporter.error('non-byte EncoderBuffer value'); - this.value = value; - this.length = 1; - } else if (typeof value === 'string') { - this.value = value; - this.length = Buffer.byteLength(value); - } else if (Buffer.isBuffer(value)) { - this.value = value; - this.length = value.length; - } else { - return reporter.error('Unsupported type: ' + typeof value); - } -} -exports.EncoderBuffer = EncoderBuffer; - -EncoderBuffer.prototype.join = function join(out, offset) { - if (!out) - out = new Buffer(this.length); - if (!offset) - offset = 0; - - if (this.length === 0) - return out; - - if (Array.isArray(this.value)) { - this.value.forEach(function(item) { - item.join(out, offset); - offset += item.length; - }); - } else { - if (typeof this.value === 'number') - out[offset] = this.value; - else if (typeof this.value === 'string') - out.write(this.value, offset); - else if (Buffer.isBuffer(this.value)) - this.value.copy(out, offset); - offset += this.length; - } - - return out; -}; - -},{"../base":15,"buffer":146,"inherits":396}],15:[function(require,module,exports){ -var base = exports; - -base.Reporter = require('./reporter').Reporter; -base.DecoderBuffer = require('./buffer').DecoderBuffer; -base.EncoderBuffer = require('./buffer').EncoderBuffer; -base.Node = require('./node'); - -},{"./buffer":14,"./node":16,"./reporter":17}],16:[function(require,module,exports){ -var Reporter = require('../base').Reporter; -var EncoderBuffer = require('../base').EncoderBuffer; -var DecoderBuffer = require('../base').DecoderBuffer; -var assert = require('minimalistic-assert'); - -// Supported tags -var tags = [ - 'seq', 'seqof', 'set', 'setof', 'objid', 'bool', - 'gentime', 'utctime', 'null_', 'enum', 'int', 'objDesc', - 'bitstr', 'bmpstr', 'charstr', 'genstr', 'graphstr', 'ia5str', 'iso646str', - 'numstr', 'octstr', 'printstr', 't61str', 'unistr', 'utf8str', 'videostr' -]; - -// Public methods list -var methods = [ - 'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice', - 'any', 'contains' -].concat(tags); - -// Overrided methods list -var overrided = [ - '_peekTag', '_decodeTag', '_use', - '_decodeStr', '_decodeObjid', '_decodeTime', - '_decodeNull', '_decodeInt', '_decodeBool', '_decodeList', - - '_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime', - '_encodeNull', '_encodeInt', '_encodeBool' -]; - -function Node(enc, parent) { - var state = {}; - this._baseState = state; - - state.enc = enc; - - state.parent = parent || null; - state.children = null; - - // State - state.tag = null; - state.args = null; - state.reverseArgs = null; - state.choice = null; - state.optional = false; - state.any = false; - state.obj = false; - state.use = null; - state.useDecoder = null; - state.key = null; - state['default'] = null; - state.explicit = null; - state.implicit = null; - state.contains = null; - - // Should create new instance on each method - if (!state.parent) { - state.children = []; - this._wrap(); - } -} -module.exports = Node; - -var stateProps = [ - 'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice', - 'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit', - 'implicit', 'contains' -]; - -Node.prototype.clone = function clone() { - var state = this._baseState; - var cstate = {}; - stateProps.forEach(function(prop) { - cstate[prop] = state[prop]; - }); - var res = new this.constructor(cstate.parent); - res._baseState = cstate; - return res; -}; - -Node.prototype._wrap = function wrap() { - var state = this._baseState; - methods.forEach(function(method) { - this[method] = function _wrappedMethod() { - var clone = new this.constructor(this); - state.children.push(clone); - return clone[method].apply(clone, arguments); - }; - }, this); -}; - -Node.prototype._init = function init(body) { - var state = this._baseState; - - assert(state.parent === null); - body.call(this); - - // Filter children - state.children = state.children.filter(function(child) { - return child._baseState.parent === this; - }, this); - assert.equal(state.children.length, 1, 'Root node can have only one child'); -}; - -Node.prototype._useArgs = function useArgs(args) { - var state = this._baseState; - - // Filter children and args - var children = args.filter(function(arg) { - return arg instanceof this.constructor; - }, this); - args = args.filter(function(arg) { - return !(arg instanceof this.constructor); - }, this); - - if (children.length !== 0) { - assert(state.children === null); - state.children = children; - - // Replace parent to maintain backward link - children.forEach(function(child) { - child._baseState.parent = this; - }, this); - } - if (args.length !== 0) { - assert(state.args === null); - state.args = args; - state.reverseArgs = args.map(function(arg) { - if (typeof arg !== 'object' || arg.constructor !== Object) - return arg; - - var res = {}; - Object.keys(arg).forEach(function(key) { - if (key == (key | 0)) - key |= 0; - var value = arg[key]; - res[value] = key; - }); - return res; - }); - } -}; - -// -// Overrided methods -// - -overrided.forEach(function(method) { - Node.prototype[method] = function _overrided() { - var state = this._baseState; - throw new Error(method + ' not implemented for encoding: ' + state.enc); - }; -}); - -// -// Public methods -// - -tags.forEach(function(tag) { - Node.prototype[tag] = function _tagMethod() { - var state = this._baseState; - var args = Array.prototype.slice.call(arguments); - - assert(state.tag === null); - state.tag = tag; - - this._useArgs(args); - - return this; - }; -}); - -Node.prototype.use = function use(item) { - assert(item); - var state = this._baseState; - - assert(state.use === null); - state.use = item; - - return this; -}; - -Node.prototype.optional = function optional() { - var state = this._baseState; - - state.optional = true; - - return this; -}; - -Node.prototype.def = function def(val) { - var state = this._baseState; - - assert(state['default'] === null); - state['default'] = val; - state.optional = true; - - return this; -}; - -Node.prototype.explicit = function explicit(num) { - var state = this._baseState; - - assert(state.explicit === null && state.implicit === null); - state.explicit = num; - - return this; -}; - -Node.prototype.implicit = function implicit(num) { - var state = this._baseState; - - assert(state.explicit === null && state.implicit === null); - state.implicit = num; - - return this; -}; - -Node.prototype.obj = function obj() { - var state = this._baseState; - var args = Array.prototype.slice.call(arguments); - - state.obj = true; - - if (args.length !== 0) - this._useArgs(args); - - return this; -}; - -Node.prototype.key = function key(newKey) { - var state = this._baseState; - - assert(state.key === null); - state.key = newKey; - - return this; -}; - -Node.prototype.any = function any() { - var state = this._baseState; - - state.any = true; - - return this; -}; - -Node.prototype.choice = function choice(obj) { - var state = this._baseState; - - assert(state.choice === null); - state.choice = obj; - this._useArgs(Object.keys(obj).map(function(key) { - return obj[key]; - })); - - return this; -}; - -Node.prototype.contains = function contains(item) { - var state = this._baseState; - - assert(state.use === null); - state.contains = item; - - return this; -}; - -// -// Decoding -// - -Node.prototype._decode = function decode(input, options) { - var state = this._baseState; - - // Decode root node - if (state.parent === null) - return input.wrapResult(state.children[0]._decode(input, options)); - - var result = state['default']; - var present = true; - - var prevKey = null; - if (state.key !== null) - prevKey = input.enterKey(state.key); - - // Check if tag is there - if (state.optional) { - var tag = null; - if (state.explicit !== null) - tag = state.explicit; - else if (state.implicit !== null) - tag = state.implicit; - else if (state.tag !== null) - tag = state.tag; - - if (tag === null && !state.any) { - // Trial and Error - var save = input.save(); - try { - if (state.choice === null) - this._decodeGeneric(state.tag, input, options); - else - this._decodeChoice(input, options); - present = true; - } catch (e) { - present = false; - } - input.restore(save); - } else { - present = this._peekTag(input, tag, state.any); - - if (input.isError(present)) - return present; - } - } - - // Push object on stack - var prevObj; - if (state.obj && present) - prevObj = input.enterObject(); - - if (present) { - // Unwrap explicit values - if (state.explicit !== null) { - var explicit = this._decodeTag(input, state.explicit); - if (input.isError(explicit)) - return explicit; - input = explicit; - } - - var start = input.offset; - - // Unwrap implicit and normal values - if (state.use === null && state.choice === null) { - if (state.any) - var save = input.save(); - var body = this._decodeTag( - input, - state.implicit !== null ? state.implicit : state.tag, - state.any - ); - if (input.isError(body)) - return body; - - if (state.any) - result = input.raw(save); - else - input = body; - } - - if (options && options.track && state.tag !== null) - options.track(input.path(), start, input.length, 'tagged'); - - if (options && options.track && state.tag !== null) - options.track(input.path(), input.offset, input.length, 'content'); - - // Select proper method for tag - if (state.any) - result = result; - else if (state.choice === null) - result = this._decodeGeneric(state.tag, input, options); - else - result = this._decodeChoice(input, options); - - if (input.isError(result)) - return result; - - // Decode children - if (!state.any && state.choice === null && state.children !== null) { - state.children.forEach(function decodeChildren(child) { - // NOTE: We are ignoring errors here, to let parser continue with other - // parts of encoded data - child._decode(input, options); - }); - } - - // Decode contained/encoded by schema, only in bit or octet strings - if (state.contains && (state.tag === 'octstr' || state.tag === 'bitstr')) { - var data = new DecoderBuffer(result); - result = this._getUse(state.contains, input._reporterState.obj) - ._decode(data, options); - } - } - - // Pop object - if (state.obj && present) - result = input.leaveObject(prevObj); - - // Set key - if (state.key !== null && (result !== null || present === true)) - input.leaveKey(prevKey, state.key, result); - else if (prevKey !== null) - input.exitKey(prevKey); - - return result; -}; - -Node.prototype._decodeGeneric = function decodeGeneric(tag, input, options) { - var state = this._baseState; - - if (tag === 'seq' || tag === 'set') - return null; - if (tag === 'seqof' || tag === 'setof') - return this._decodeList(input, tag, state.args[0], options); - else if (/str$/.test(tag)) - return this._decodeStr(input, tag, options); - else if (tag === 'objid' && state.args) - return this._decodeObjid(input, state.args[0], state.args[1], options); - else if (tag === 'objid') - return this._decodeObjid(input, null, null, options); - else if (tag === 'gentime' || tag === 'utctime') - return this._decodeTime(input, tag, options); - else if (tag === 'null_') - return this._decodeNull(input, options); - else if (tag === 'bool') - return this._decodeBool(input, options); - else if (tag === 'objDesc') - return this._decodeStr(input, tag, options); - else if (tag === 'int' || tag === 'enum') - return this._decodeInt(input, state.args && state.args[0], options); - - if (state.use !== null) { - return this._getUse(state.use, input._reporterState.obj) - ._decode(input, options); - } else { - return input.error('unknown tag: ' + tag); - } -}; - -Node.prototype._getUse = function _getUse(entity, obj) { - - var state = this._baseState; - // Create altered use decoder if implicit is set - state.useDecoder = this._use(entity, obj); - assert(state.useDecoder._baseState.parent === null); - state.useDecoder = state.useDecoder._baseState.children[0]; - if (state.implicit !== state.useDecoder._baseState.implicit) { - state.useDecoder = state.useDecoder.clone(); - state.useDecoder._baseState.implicit = state.implicit; - } - return state.useDecoder; -}; - -Node.prototype._decodeChoice = function decodeChoice(input, options) { - var state = this._baseState; - var result = null; - var match = false; - - Object.keys(state.choice).some(function(key) { - var save = input.save(); - var node = state.choice[key]; - try { - var value = node._decode(input, options); - if (input.isError(value)) - return false; - - result = { type: key, value: value }; - match = true; - } catch (e) { - input.restore(save); - return false; - } - return true; - }, this); - - if (!match) - return input.error('Choice not matched'); - - return result; -}; - -// -// Encoding -// - -Node.prototype._createEncoderBuffer = function createEncoderBuffer(data) { - return new EncoderBuffer(data, this.reporter); -}; - -Node.prototype._encode = function encode(data, reporter, parent) { - var state = this._baseState; - if (state['default'] !== null && state['default'] === data) - return; - - var result = this._encodeValue(data, reporter, parent); - if (result === undefined) - return; - - if (this._skipDefault(result, reporter, parent)) - return; - - return result; -}; - -Node.prototype._encodeValue = function encode(data, reporter, parent) { - var state = this._baseState; - - // Decode root node - if (state.parent === null) - return state.children[0]._encode(data, reporter || new Reporter()); - - var result = null; - - // Set reporter to share it with a child class - this.reporter = reporter; - - // Check if data is there - if (state.optional && data === undefined) { - if (state['default'] !== null) - data = state['default'] - else - return; - } - - // Encode children first - var content = null; - var primitive = false; - if (state.any) { - // Anything that was given is translated to buffer - result = this._createEncoderBuffer(data); - } else if (state.choice) { - result = this._encodeChoice(data, reporter); - } else if (state.contains) { - content = this._getUse(state.contains, parent)._encode(data, reporter); - primitive = true; - } else if (state.children) { - content = state.children.map(function(child) { - if (child._baseState.tag === 'null_') - return child._encode(null, reporter, data); - - if (child._baseState.key === null) - return reporter.error('Child should have a key'); - var prevKey = reporter.enterKey(child._baseState.key); - - if (typeof data !== 'object') - return reporter.error('Child expected, but input is not object'); - - var res = child._encode(data[child._baseState.key], reporter, data); - reporter.leaveKey(prevKey); - - return res; - }, this).filter(function(child) { - return child; - }); - content = this._createEncoderBuffer(content); - } else { - if (state.tag === 'seqof' || state.tag === 'setof') { - // TODO(indutny): this should be thrown on DSL level - if (!(state.args && state.args.length === 1)) - return reporter.error('Too many args for : ' + state.tag); - - if (!Array.isArray(data)) - return reporter.error('seqof/setof, but data is not Array'); - - var child = this.clone(); - child._baseState.implicit = null; - content = this._createEncoderBuffer(data.map(function(item) { - var state = this._baseState; - - return this._getUse(state.args[0], data)._encode(item, reporter); - }, child)); - } else if (state.use !== null) { - result = this._getUse(state.use, parent)._encode(data, reporter); - } else { - content = this._encodePrimitive(state.tag, data); - primitive = true; - } - } - - // Encode data itself - var result; - if (!state.any && state.choice === null) { - var tag = state.implicit !== null ? state.implicit : state.tag; - var cls = state.implicit === null ? 'universal' : 'context'; - - if (tag === null) { - if (state.use === null) - reporter.error('Tag could be omitted only for .use()'); - } else { - if (state.use === null) - result = this._encodeComposite(tag, primitive, cls, content); - } - } - - // Wrap in explicit - if (state.explicit !== null) - result = this._encodeComposite(state.explicit, false, 'context', result); - - return result; -}; - -Node.prototype._encodeChoice = function encodeChoice(data, reporter) { - var state = this._baseState; - - var node = state.choice[data.type]; - if (!node) { - assert( - false, - data.type + ' not found in ' + - JSON.stringify(Object.keys(state.choice))); - } - return node._encode(data.value, reporter); -}; - -Node.prototype._encodePrimitive = function encodePrimitive(tag, data) { - var state = this._baseState; - - if (/str$/.test(tag)) - return this._encodeStr(data, tag); - else if (tag === 'objid' && state.args) - return this._encodeObjid(data, state.reverseArgs[0], state.args[1]); - else if (tag === 'objid') - return this._encodeObjid(data, null, null); - else if (tag === 'gentime' || tag === 'utctime') - return this._encodeTime(data, tag); - else if (tag === 'null_') - return this._encodeNull(); - else if (tag === 'int' || tag === 'enum') - return this._encodeInt(data, state.args && state.reverseArgs[0]); - else if (tag === 'bool') - return this._encodeBool(data); - else if (tag === 'objDesc') - return this._encodeStr(data, tag); - else - throw new Error('Unsupported tag: ' + tag); -}; - -Node.prototype._isNumstr = function isNumstr(str) { - return /^[0-9 ]*$/.test(str); -}; - -Node.prototype._isPrintstr = function isPrintstr(str) { - return /^[A-Za-z0-9 '\(\)\+,\-\.\/:=\?]*$/.test(str); -}; - -},{"../base":15,"minimalistic-assert":640}],17:[function(require,module,exports){ -var inherits = require('inherits'); - -function Reporter(options) { - this._reporterState = { - obj: null, - path: [], - options: options || {}, - errors: [] - }; -} -exports.Reporter = Reporter; - -Reporter.prototype.isError = function isError(obj) { - return obj instanceof ReporterError; -}; - -Reporter.prototype.save = function save() { - var state = this._reporterState; - - return { obj: state.obj, pathLen: state.path.length }; -}; - -Reporter.prototype.restore = function restore(data) { - var state = this._reporterState; - - state.obj = data.obj; - state.path = state.path.slice(0, data.pathLen); -}; - -Reporter.prototype.enterKey = function enterKey(key) { - return this._reporterState.path.push(key); -}; - -Reporter.prototype.exitKey = function exitKey(index) { - var state = this._reporterState; - - state.path = state.path.slice(0, index - 1); -}; - -Reporter.prototype.leaveKey = function leaveKey(index, key, value) { - var state = this._reporterState; - - this.exitKey(index); - if (state.obj !== null) - state.obj[key] = value; -}; - -Reporter.prototype.path = function path() { - return this._reporterState.path.join('/'); -}; - -Reporter.prototype.enterObject = function enterObject() { - var state = this._reporterState; - - var prev = state.obj; - state.obj = {}; - return prev; -}; - -Reporter.prototype.leaveObject = function leaveObject(prev) { - var state = this._reporterState; - - var now = state.obj; - state.obj = prev; - return now; -}; - -Reporter.prototype.error = function error(msg) { - var err; - var state = this._reporterState; - - var inherited = msg instanceof ReporterError; - if (inherited) { - err = msg; - } else { - err = new ReporterError(state.path.map(function(elem) { - return '[' + JSON.stringify(elem) + ']'; - }).join(''), msg.message || msg, msg.stack); - } - - if (!state.options.partial) - throw err; - - if (!inherited) - state.errors.push(err); - - return err; -}; - -Reporter.prototype.wrapResult = function wrapResult(result) { - var state = this._reporterState; - if (!state.options.partial) - return result; - - return { - result: this.isError(result) ? null : result, - errors: state.errors - }; -}; - -function ReporterError(path, msg) { - this.path = path; - this.rethrow(msg); -}; -inherits(ReporterError, Error); - -ReporterError.prototype.rethrow = function rethrow(msg) { - this.message = msg + ' at: ' + (this.path || '(shallow)'); - if (Error.captureStackTrace) - Error.captureStackTrace(this, ReporterError); - - if (!this.stack) { - try { - // IE only adds stack when thrown - throw new Error(this.message); - } catch (e) { - this.stack = e.stack; - } - } - return this; -}; - -},{"inherits":396}],18:[function(require,module,exports){ -var constants = require('../constants'); - -exports.tagClass = { - 0: 'universal', - 1: 'application', - 2: 'context', - 3: 'private' -}; -exports.tagClassByName = constants._reverse(exports.tagClass); - -exports.tag = { - 0x00: 'end', - 0x01: 'bool', - 0x02: 'int', - 0x03: 'bitstr', - 0x04: 'octstr', - 0x05: 'null_', - 0x06: 'objid', - 0x07: 'objDesc', - 0x08: 'external', - 0x09: 'real', - 0x0a: 'enum', - 0x0b: 'embed', - 0x0c: 'utf8str', - 0x0d: 'relativeOid', - 0x10: 'seq', - 0x11: 'set', - 0x12: 'numstr', - 0x13: 'printstr', - 0x14: 't61str', - 0x15: 'videostr', - 0x16: 'ia5str', - 0x17: 'utctime', - 0x18: 'gentime', - 0x19: 'graphstr', - 0x1a: 'iso646str', - 0x1b: 'genstr', - 0x1c: 'unistr', - 0x1d: 'charstr', - 0x1e: 'bmpstr' -}; -exports.tagByName = constants._reverse(exports.tag); - -},{"../constants":19}],19:[function(require,module,exports){ -var constants = exports; - -// Helper -constants._reverse = function reverse(map) { - var res = {}; - - Object.keys(map).forEach(function(key) { - // Convert key to integer if it is stringified - if ((key | 0) == key) - key = key | 0; - - var value = map[key]; - res[value] = key; - }); - - return res; -}; - -constants.der = require('./der'); - -},{"./der":18}],20:[function(require,module,exports){ -var inherits = require('inherits'); - -var asn1 = require('../../asn1'); -var base = asn1.base; -var bignum = asn1.bignum; - -// Import DER constants -var der = asn1.constants.der; - -function DERDecoder(entity) { - this.enc = 'der'; - this.name = entity.name; - this.entity = entity; - - // Construct base tree - this.tree = new DERNode(); - this.tree._init(entity.body); -}; -module.exports = DERDecoder; - -DERDecoder.prototype.decode = function decode(data, options) { - if (!(data instanceof base.DecoderBuffer)) - data = new base.DecoderBuffer(data, options); - - return this.tree._decode(data, options); -}; - -// Tree methods - -function DERNode(parent) { - base.Node.call(this, 'der', parent); -} -inherits(DERNode, base.Node); - -DERNode.prototype._peekTag = function peekTag(buffer, tag, any) { - if (buffer.isEmpty()) - return false; - - var state = buffer.save(); - var decodedTag = derDecodeTag(buffer, 'Failed to peek tag: "' + tag + '"'); - if (buffer.isError(decodedTag)) - return decodedTag; - - buffer.restore(state); - - return decodedTag.tag === tag || decodedTag.tagStr === tag || - (decodedTag.tagStr + 'of') === tag || any; -}; - -DERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) { - var decodedTag = derDecodeTag(buffer, - 'Failed to decode tag of "' + tag + '"'); - if (buffer.isError(decodedTag)) - return decodedTag; - - var len = derDecodeLen(buffer, - decodedTag.primitive, - 'Failed to get length of "' + tag + '"'); - - // Failure - if (buffer.isError(len)) - return len; - - if (!any && - decodedTag.tag !== tag && - decodedTag.tagStr !== tag && - decodedTag.tagStr + 'of' !== tag) { - return buffer.error('Failed to match tag: "' + tag + '"'); - } - - if (decodedTag.primitive || len !== null) - return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); - - // Indefinite length... find END tag - var state = buffer.save(); - var res = this._skipUntilEnd( - buffer, - 'Failed to skip indefinite length body: "' + this.tag + '"'); - if (buffer.isError(res)) - return res; - - len = buffer.offset - state.offset; - buffer.restore(state); - return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); -}; - -DERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) { - while (true) { - var tag = derDecodeTag(buffer, fail); - if (buffer.isError(tag)) - return tag; - var len = derDecodeLen(buffer, tag.primitive, fail); - if (buffer.isError(len)) - return len; - - var res; - if (tag.primitive || len !== null) - res = buffer.skip(len) - else - res = this._skipUntilEnd(buffer, fail); - - // Failure - if (buffer.isError(res)) - return res; - - if (tag.tagStr === 'end') - break; - } -}; - -DERNode.prototype._decodeList = function decodeList(buffer, tag, decoder, - options) { - var result = []; - while (!buffer.isEmpty()) { - var possibleEnd = this._peekTag(buffer, 'end'); - if (buffer.isError(possibleEnd)) - return possibleEnd; - - var res = decoder.decode(buffer, 'der', options); - if (buffer.isError(res) && possibleEnd) - break; - result.push(res); - } - return result; -}; - -DERNode.prototype._decodeStr = function decodeStr(buffer, tag) { - if (tag === 'bitstr') { - var unused = buffer.readUInt8(); - if (buffer.isError(unused)) - return unused; - return { unused: unused, data: buffer.raw() }; - } else if (tag === 'bmpstr') { - var raw = buffer.raw(); - if (raw.length % 2 === 1) - return buffer.error('Decoding of string type: bmpstr length mismatch'); - - var str = ''; - for (var i = 0; i < raw.length / 2; i++) { - str += String.fromCharCode(raw.readUInt16BE(i * 2)); - } - return str; - } else if (tag === 'numstr') { - var numstr = buffer.raw().toString('ascii'); - if (!this._isNumstr(numstr)) { - return buffer.error('Decoding of string type: ' + - 'numstr unsupported characters'); - } - return numstr; - } else if (tag === 'octstr') { - return buffer.raw(); - } else if (tag === 'objDesc') { - return buffer.raw(); - } else if (tag === 'printstr') { - var printstr = buffer.raw().toString('ascii'); - if (!this._isPrintstr(printstr)) { - return buffer.error('Decoding of string type: ' + - 'printstr unsupported characters'); - } - return printstr; - } else if (/str$/.test(tag)) { - return buffer.raw().toString(); - } else { - return buffer.error('Decoding of string type: ' + tag + ' unsupported'); - } -}; - -DERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) { - var result; - var identifiers = []; - var ident = 0; - while (!buffer.isEmpty()) { - var subident = buffer.readUInt8(); - ident <<= 7; - ident |= subident & 0x7f; - if ((subident & 0x80) === 0) { - identifiers.push(ident); - ident = 0; - } - } - if (subident & 0x80) - identifiers.push(ident); - - var first = (identifiers[0] / 40) | 0; - var second = identifiers[0] % 40; - - if (relative) - result = identifiers; - else - result = [first, second].concat(identifiers.slice(1)); - - if (values) { - var tmp = values[result.join(' ')]; - if (tmp === undefined) - tmp = values[result.join('.')]; - if (tmp !== undefined) - result = tmp; - } - - return result; -}; - -DERNode.prototype._decodeTime = function decodeTime(buffer, tag) { - var str = buffer.raw().toString(); - if (tag === 'gentime') { - var year = str.slice(0, 4) | 0; - var mon = str.slice(4, 6) | 0; - var day = str.slice(6, 8) | 0; - var hour = str.slice(8, 10) | 0; - var min = str.slice(10, 12) | 0; - var sec = str.slice(12, 14) | 0; - } else if (tag === 'utctime') { - var year = str.slice(0, 2) | 0; - var mon = str.slice(2, 4) | 0; - var day = str.slice(4, 6) | 0; - var hour = str.slice(6, 8) | 0; - var min = str.slice(8, 10) | 0; - var sec = str.slice(10, 12) | 0; - if (year < 70) - year = 2000 + year; - else - year = 1900 + year; - } else { - return buffer.error('Decoding ' + tag + ' time is not supported yet'); - } - - return Date.UTC(year, mon - 1, day, hour, min, sec, 0); -}; - -DERNode.prototype._decodeNull = function decodeNull(buffer) { - return null; -}; - -DERNode.prototype._decodeBool = function decodeBool(buffer) { - var res = buffer.readUInt8(); - if (buffer.isError(res)) - return res; - else - return res !== 0; -}; - -DERNode.prototype._decodeInt = function decodeInt(buffer, values) { - // Bigint, return as it is (assume big endian) - var raw = buffer.raw(); - var res = new bignum(raw); - - if (values) - res = values[res.toString(10)] || res; - - return res; -}; - -DERNode.prototype._use = function use(entity, obj) { - if (typeof entity === 'function') - entity = entity(obj); - return entity._getDecoder('der').tree; -}; - -// Utility methods - -function derDecodeTag(buf, fail) { - var tag = buf.readUInt8(fail); - if (buf.isError(tag)) - return tag; - - var cls = der.tagClass[tag >> 6]; - var primitive = (tag & 0x20) === 0; - - // Multi-octet tag - load - if ((tag & 0x1f) === 0x1f) { - var oct = tag; - tag = 0; - while ((oct & 0x80) === 0x80) { - oct = buf.readUInt8(fail); - if (buf.isError(oct)) - return oct; - - tag <<= 7; - tag |= oct & 0x7f; - } - } else { - tag &= 0x1f; - } - var tagStr = der.tag[tag]; - - return { - cls: cls, - primitive: primitive, - tag: tag, - tagStr: tagStr - }; -} - -function derDecodeLen(buf, primitive, fail) { - var len = buf.readUInt8(fail); - if (buf.isError(len)) - return len; - - // Indefinite form - if (!primitive && len === 0x80) - return null; - - // Definite form - if ((len & 0x80) === 0) { - // Short form - return len; - } - - // Long form - var num = len & 0x7f; - if (num > 4) - return buf.error('length octect is too long'); - - len = 0; - for (var i = 0; i < num; i++) { - len <<= 8; - var j = buf.readUInt8(fail); - if (buf.isError(j)) - return j; - len |= j; - } - - return len; -} - -},{"../../asn1":12,"inherits":396}],21:[function(require,module,exports){ -var decoders = exports; - -decoders.der = require('./der'); -decoders.pem = require('./pem'); - -},{"./der":20,"./pem":22}],22:[function(require,module,exports){ -var inherits = require('inherits'); -var Buffer = require('buffer').Buffer; - -var DERDecoder = require('./der'); - -function PEMDecoder(entity) { - DERDecoder.call(this, entity); - this.enc = 'pem'; -}; -inherits(PEMDecoder, DERDecoder); -module.exports = PEMDecoder; - -PEMDecoder.prototype.decode = function decode(data, options) { - var lines = data.toString().split(/[\r\n]+/g); - - var label = options.label.toUpperCase(); - - var re = /^-----(BEGIN|END) ([^-]+)-----$/; - var start = -1; - var end = -1; - for (var i = 0; i < lines.length; i++) { - var match = lines[i].match(re); - if (match === null) - continue; - - if (match[2] !== label) - continue; - - if (start === -1) { - if (match[1] !== 'BEGIN') - break; - start = i; - } else { - if (match[1] !== 'END') - break; - end = i; - break; - } - } - if (start === -1 || end === -1) - throw new Error('PEM section not found for: ' + label); - - var base64 = lines.slice(start + 1, end).join(''); - // Remove excessive symbols - base64.replace(/[^a-z0-9\+\/=]+/gi, ''); - - var input = new Buffer(base64, 'base64'); - return DERDecoder.prototype.decode.call(this, input, options); -}; - -},{"./der":20,"buffer":146,"inherits":396}],23:[function(require,module,exports){ -var inherits = require('inherits'); -var Buffer = require('buffer').Buffer; - -var asn1 = require('../../asn1'); -var base = asn1.base; - -// Import DER constants -var der = asn1.constants.der; - -function DEREncoder(entity) { - this.enc = 'der'; - this.name = entity.name; - this.entity = entity; - - // Construct base tree - this.tree = new DERNode(); - this.tree._init(entity.body); -}; -module.exports = DEREncoder; - -DEREncoder.prototype.encode = function encode(data, reporter) { - return this.tree._encode(data, reporter).join(); -}; - -// Tree methods - -function DERNode(parent) { - base.Node.call(this, 'der', parent); -} -inherits(DERNode, base.Node); - -DERNode.prototype._encodeComposite = function encodeComposite(tag, - primitive, - cls, - content) { - var encodedTag = encodeTag(tag, primitive, cls, this.reporter); - - // Short form - if (content.length < 0x80) { - var header = new Buffer(2); - header[0] = encodedTag; - header[1] = content.length; - return this._createEncoderBuffer([ header, content ]); - } - - // Long form - // Count octets required to store length - var lenOctets = 1; - for (var i = content.length; i >= 0x100; i >>= 8) - lenOctets++; - - var header = new Buffer(1 + 1 + lenOctets); - header[0] = encodedTag; - header[1] = 0x80 | lenOctets; - - for (var i = 1 + lenOctets, j = content.length; j > 0; i--, j >>= 8) - header[i] = j & 0xff; - - return this._createEncoderBuffer([ header, content ]); -}; - -DERNode.prototype._encodeStr = function encodeStr(str, tag) { - if (tag === 'bitstr') { - return this._createEncoderBuffer([ str.unused | 0, str.data ]); - } else if (tag === 'bmpstr') { - var buf = new Buffer(str.length * 2); - for (var i = 0; i < str.length; i++) { - buf.writeUInt16BE(str.charCodeAt(i), i * 2); - } - return this._createEncoderBuffer(buf); - } else if (tag === 'numstr') { - if (!this._isNumstr(str)) { - return this.reporter.error('Encoding of string type: numstr supports ' + - 'only digits and space'); - } - return this._createEncoderBuffer(str); - } else if (tag === 'printstr') { - if (!this._isPrintstr(str)) { - return this.reporter.error('Encoding of string type: printstr supports ' + - 'only latin upper and lower case letters, ' + - 'digits, space, apostrophe, left and rigth ' + - 'parenthesis, plus sign, comma, hyphen, ' + - 'dot, slash, colon, equal sign, ' + - 'question mark'); - } - return this._createEncoderBuffer(str); - } else if (/str$/.test(tag)) { - return this._createEncoderBuffer(str); - } else if (tag === 'objDesc') { - return this._createEncoderBuffer(str); - } else { - return this.reporter.error('Encoding of string type: ' + tag + - ' unsupported'); - } -}; - -DERNode.prototype._encodeObjid = function encodeObjid(id, values, relative) { - if (typeof id === 'string') { - if (!values) - return this.reporter.error('string objid given, but no values map found'); - if (!values.hasOwnProperty(id)) - return this.reporter.error('objid not found in values map'); - id = values[id].split(/[\s\.]+/g); - for (var i = 0; i < id.length; i++) - id[i] |= 0; - } else if (Array.isArray(id)) { - id = id.slice(); - for (var i = 0; i < id.length; i++) - id[i] |= 0; - } - - if (!Array.isArray(id)) { - return this.reporter.error('objid() should be either array or string, ' + - 'got: ' + JSON.stringify(id)); - } - - if (!relative) { - if (id[1] >= 40) - return this.reporter.error('Second objid identifier OOB'); - id.splice(0, 2, id[0] * 40 + id[1]); - } - - // Count number of octets - var size = 0; - for (var i = 0; i < id.length; i++) { - var ident = id[i]; - for (size++; ident >= 0x80; ident >>= 7) - size++; - } - - var objid = new Buffer(size); - var offset = objid.length - 1; - for (var i = id.length - 1; i >= 0; i--) { - var ident = id[i]; - objid[offset--] = ident & 0x7f; - while ((ident >>= 7) > 0) - objid[offset--] = 0x80 | (ident & 0x7f); - } - - return this._createEncoderBuffer(objid); -}; - -function two(num) { - if (num < 10) - return '0' + num; - else - return num; -} - -DERNode.prototype._encodeTime = function encodeTime(time, tag) { - var str; - var date = new Date(time); - - if (tag === 'gentime') { - str = [ - two(date.getFullYear()), - two(date.getUTCMonth() + 1), - two(date.getUTCDate()), - two(date.getUTCHours()), - two(date.getUTCMinutes()), - two(date.getUTCSeconds()), - 'Z' - ].join(''); - } else if (tag === 'utctime') { - str = [ - two(date.getFullYear() % 100), - two(date.getUTCMonth() + 1), - two(date.getUTCDate()), - two(date.getUTCHours()), - two(date.getUTCMinutes()), - two(date.getUTCSeconds()), - 'Z' - ].join(''); - } else { - this.reporter.error('Encoding ' + tag + ' time is not supported yet'); - } - - return this._encodeStr(str, 'octstr'); -}; - -DERNode.prototype._encodeNull = function encodeNull() { - return this._createEncoderBuffer(''); -}; - -DERNode.prototype._encodeInt = function encodeInt(num, values) { - if (typeof num === 'string') { - if (!values) - return this.reporter.error('String int or enum given, but no values map'); - if (!values.hasOwnProperty(num)) { - return this.reporter.error('Values map doesn\'t contain: ' + - JSON.stringify(num)); - } - num = values[num]; - } - - // Bignum, assume big endian - if (typeof num !== 'number' && !Buffer.isBuffer(num)) { - var numArray = num.toArray(); - if (!num.sign && numArray[0] & 0x80) { - numArray.unshift(0); - } - num = new Buffer(numArray); - } - - if (Buffer.isBuffer(num)) { - var size = num.length; - if (num.length === 0) - size++; - - var out = new Buffer(size); - num.copy(out); - if (num.length === 0) - out[0] = 0 - return this._createEncoderBuffer(out); - } - - if (num < 0x80) - return this._createEncoderBuffer(num); - - if (num < 0x100) - return this._createEncoderBuffer([0, num]); - - var size = 1; - for (var i = num; i >= 0x100; i >>= 8) - size++; - - var out = new Array(size); - for (var i = out.length - 1; i >= 0; i--) { - out[i] = num & 0xff; - num >>= 8; - } - if(out[0] & 0x80) { - out.unshift(0); - } - - return this._createEncoderBuffer(new Buffer(out)); -}; - -DERNode.prototype._encodeBool = function encodeBool(value) { - return this._createEncoderBuffer(value ? 0xff : 0); -}; - -DERNode.prototype._use = function use(entity, obj) { - if (typeof entity === 'function') - entity = entity(obj); - return entity._getEncoder('der').tree; -}; - -DERNode.prototype._skipDefault = function skipDefault(dataBuffer, reporter, parent) { - var state = this._baseState; - var i; - if (state['default'] === null) - return false; - - var data = dataBuffer.join(); - if (state.defaultBuffer === undefined) - state.defaultBuffer = this._encodeValue(state['default'], reporter, parent).join(); - - if (data.length !== state.defaultBuffer.length) - return false; - - for (i=0; i < data.length; i++) - if (data[i] !== state.defaultBuffer[i]) - return false; - - return true; -}; - -// Utility methods - -function encodeTag(tag, primitive, cls, reporter) { - var res; - - if (tag === 'seqof') - tag = 'seq'; - else if (tag === 'setof') - tag = 'set'; - - if (der.tagByName.hasOwnProperty(tag)) - res = der.tagByName[tag]; - else if (typeof tag === 'number' && (tag | 0) === tag) - res = tag; - else - return reporter.error('Unknown tag: ' + tag); - - if (res >= 0x1f) - return reporter.error('Multi-octet tag encoding unsupported'); - - if (!primitive) - res |= 0x20; - - res |= (der.tagClassByName[cls || 'universal'] << 6); - - return res; -} - -},{"../../asn1":12,"buffer":146,"inherits":396}],24:[function(require,module,exports){ -var encoders = exports; - -encoders.der = require('./der'); -encoders.pem = require('./pem'); - -},{"./der":23,"./pem":25}],25:[function(require,module,exports){ -var inherits = require('inherits'); - -var DEREncoder = require('./der'); - -function PEMEncoder(entity) { - DEREncoder.call(this, entity); - this.enc = 'pem'; -}; -inherits(PEMEncoder, DEREncoder); -module.exports = PEMEncoder; - -PEMEncoder.prototype.encode = function encode(data, options) { - var buf = DEREncoder.prototype.encode.call(this, data); - - var p = buf.toString('base64'); - var out = [ '-----BEGIN ' + options.label + '-----' ]; - for (var i = 0; i < p.length; i += 64) - out.push(p.slice(i, i + 64)); - out.push('-----END ' + options.label + '-----'); - return out.join('\n'); -}; - -},{"./der":23,"inherits":396}],26:[function(require,module,exports){ -(function (global){ -'use strict'; - -var objectAssign = require('object-assign'); - -// compare and isBuffer taken from https://github.com/feross/buffer/blob/680e9e5e488f22aac27599a57dc844a6315928dd/index.js -// original notice: - -/*! - * The buffer module from node.js, for the browser. - * - * @author Feross Aboukhadijeh - * @license MIT - */ -function compare(a, b) { - if (a === b) { - return 0; - } - - var x = a.length; - var y = b.length; - - for (var i = 0, len = Math.min(x, y); i < len; ++i) { - if (a[i] !== b[i]) { - x = a[i]; - y = b[i]; - break; - } - } - - if (x < y) { - return -1; - } - if (y < x) { - return 1; - } - return 0; -} -function isBuffer(b) { - if (global.Buffer && typeof global.Buffer.isBuffer === 'function') { - return global.Buffer.isBuffer(b); - } - return !!(b != null && b._isBuffer); -} - -// based on node assert, original notice: -// NB: The URL to the CommonJS spec is kept just for tradition. -// node-assert has evolved a lot since then, both in API and behavior. - -// http://wiki.commonjs.org/wiki/Unit_Testing/1.0 -// -// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8! -// -// Originally from narwhal.js (http://narwhaljs.org) -// Copyright (c) 2009 Thomas Robinson <280north.com> -// -// Permission is hereby granted, free of charge, to any person obtaining a copy -// of this software and associated documentation files (the 'Software'), to -// deal in the Software without restriction, including without limitation the -// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or -// sell copies of the Software, and to permit persons to whom the Software is -// furnished to do so, subject to the following conditions: -// -// The above copyright notice and this permission notice shall be included in -// all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION -// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -var util = require('util/'); -var hasOwn = Object.prototype.hasOwnProperty; -var pSlice = Array.prototype.slice; -var functionsHaveNames = (function () { - return function foo() {}.name === 'foo'; -}()); -function pToString (obj) { - return Object.prototype.toString.call(obj); -} -function isView(arrbuf) { - if (isBuffer(arrbuf)) { - return false; - } - if (typeof global.ArrayBuffer !== 'function') { - return false; - } - if (typeof ArrayBuffer.isView === 'function') { - return ArrayBuffer.isView(arrbuf); - } - if (!arrbuf) { - return false; - } - if (arrbuf instanceof DataView) { - return true; - } - if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) { - return true; - } - return false; -} -// 1. The assert module provides functions that throw -// AssertionError's when particular conditions are not met. The -// assert module must conform to the following interface. - -var assert = module.exports = ok; - -// 2. The AssertionError is defined in assert. -// new assert.AssertionError({ message: message, -// actual: actual, -// expected: expected }) - -var regex = /\s*function\s+([^\(\s]*)\s*/; -// based on https://github.com/ljharb/function.prototype.name/blob/adeeeec8bfcc6068b187d7d9fb3d5bb1d3a30899/implementation.js -function getName(func) { - if (!util.isFunction(func)) { - return; - } - if (functionsHaveNames) { - return func.name; - } - var str = func.toString(); - var match = str.match(regex); - return match && match[1]; -} -assert.AssertionError = function AssertionError(options) { - this.name = 'AssertionError'; - this.actual = options.actual; - this.expected = options.expected; - this.operator = options.operator; - if (options.message) { - this.message = options.message; - this.generatedMessage = false; - } else { - this.message = getMessage(this); - this.generatedMessage = true; - } - var stackStartFunction = options.stackStartFunction || fail; - if (Error.captureStackTrace) { - Error.captureStackTrace(this, stackStartFunction); - } else { - // non v8 browsers so we can have a stacktrace - var err = new Error(); - if (err.stack) { - var out = err.stack; - - // try to strip useless frames - var fn_name = getName(stackStartFunction); - var idx = out.indexOf('\n' + fn_name); - if (idx >= 0) { - // once we have located the function frame - // we need to strip out everything before it (and its line) - var next_line = out.indexOf('\n', idx + 1); - out = out.substring(next_line + 1); - } - - this.stack = out; - } - } -}; - -// assert.AssertionError instanceof Error -util.inherits(assert.AssertionError, Error); - -function truncate(s, n) { - if (typeof s === 'string') { - return s.length < n ? s : s.slice(0, n); - } else { - return s; - } -} -function inspect(something) { - if (functionsHaveNames || !util.isFunction(something)) { - return util.inspect(something); - } - var rawname = getName(something); - var name = rawname ? ': ' + rawname : ''; - return '[Function' + name + ']'; -} -function getMessage(self) { - return truncate(inspect(self.actual), 128) + ' ' + - self.operator + ' ' + - truncate(inspect(self.expected), 128); -} - -// At present only the three keys mentioned above are used and -// understood by the spec. Implementations or sub modules can pass -// other keys to the AssertionError's constructor - they will be -// ignored. - -// 3. All of the following functions must throw an AssertionError -// when a corresponding condition is not met, with a message that -// may be undefined if not provided. All assertion methods provide -// both the actual and expected values to the assertion error for -// display purposes. - -function fail(actual, expected, message, operator, stackStartFunction) { - throw new assert.AssertionError({ - message: message, - actual: actual, - expected: expected, - operator: operator, - stackStartFunction: stackStartFunction - }); -} - -// EXTENSION! allows for well behaved errors defined elsewhere. -assert.fail = fail; - -// 4. Pure assertion tests whether a value is truthy, as determined -// by !!guard. -// assert.ok(guard, message_opt); -// This statement is equivalent to assert.equal(true, !!guard, -// message_opt);. To test strictly for the value true, use -// assert.strictEqual(true, guard, message_opt);. - -function ok(value, message) { - if (!value) fail(value, true, message, '==', assert.ok); -} -assert.ok = ok; - -// 5. The equality assertion tests shallow, coercive equality with -// ==. -// assert.equal(actual, expected, message_opt); - -assert.equal = function equal(actual, expected, message) { - if (actual != expected) fail(actual, expected, message, '==', assert.equal); -}; - -// 6. The non-equality assertion tests for whether two objects are not equal -// with != assert.notEqual(actual, expected, message_opt); - -assert.notEqual = function notEqual(actual, expected, message) { - if (actual == expected) { - fail(actual, expected, message, '!=', assert.notEqual); - } -}; - -// 7. The equivalence assertion tests a deep equality relation. -// assert.deepEqual(actual, expected, message_opt); - -assert.deepEqual = function deepEqual(actual, expected, message) { - if (!_deepEqual(actual, expected, false)) { - fail(actual, expected, message, 'deepEqual', assert.deepEqual); - } -}; - -assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) { - if (!_deepEqual(actual, expected, true)) { - fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual); - } -}; - -function _deepEqual(actual, expected, strict, memos) { - // 7.1. All identical values are equivalent, as determined by ===. - if (actual === expected) { - return true; - } else if (isBuffer(actual) && isBuffer(expected)) { - return compare(actual, expected) === 0; - - // 7.2. If the expected value is a Date object, the actual value is - // equivalent if it is also a Date object that refers to the same time. - } else if (util.isDate(actual) && util.isDate(expected)) { - return actual.getTime() === expected.getTime(); - - // 7.3 If the expected value is a RegExp object, the actual value is - // equivalent if it is also a RegExp object with the same source and - // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`). - } else if (util.isRegExp(actual) && util.isRegExp(expected)) { - return actual.source === expected.source && - actual.global === expected.global && - actual.multiline === expected.multiline && - actual.lastIndex === expected.lastIndex && - actual.ignoreCase === expected.ignoreCase; - - // 7.4. Other pairs that do not both pass typeof value == 'object', - // equivalence is determined by ==. - } else if ((actual === null || typeof actual !== 'object') && - (expected === null || typeof expected !== 'object')) { - return strict ? actual === expected : actual == expected; - - // If both values are instances of typed arrays, wrap their underlying - // ArrayBuffers in a Buffer each to increase performance - // This optimization requires the arrays to have the same type as checked by - // Object.prototype.toString (aka pToString). Never perform binary - // comparisons for Float*Arrays, though, since e.g. +0 === -0 but their - // bit patterns are not identical. - } else if (isView(actual) && isView(expected) && - pToString(actual) === pToString(expected) && - !(actual instanceof Float32Array || - actual instanceof Float64Array)) { - return compare(new Uint8Array(actual.buffer), - new Uint8Array(expected.buffer)) === 0; - - // 7.5 For all other Object pairs, including Array objects, equivalence is - // determined by having the same number of owned properties (as verified - // with Object.prototype.hasOwnProperty.call), the same set of keys - // (although not necessarily the same order), equivalent values for every - // corresponding key, and an identical 'prototype' property. Note: this - // accounts for both named and indexed properties on Arrays. - } else if (isBuffer(actual) !== isBuffer(expected)) { - return false; - } else { - memos = memos || {actual: [], expected: []}; - - var actualIndex = memos.actual.indexOf(actual); - if (actualIndex !== -1) { - if (actualIndex === memos.expected.indexOf(expected)) { - return true; - } - } - - memos.actual.push(actual); - memos.expected.push(expected); - - return objEquiv(actual, expected, strict, memos); - } -} - -function isArguments(object) { - return Object.prototype.toString.call(object) == '[object Arguments]'; -} - -function objEquiv(a, b, strict, actualVisitedObjects) { - if (a === null || a === undefined || b === null || b === undefined) - return false; - // if one is a primitive, the other must be same - if (util.isPrimitive(a) || util.isPrimitive(b)) - return a === b; - if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b)) - return false; - var aIsArgs = isArguments(a); - var bIsArgs = isArguments(b); - if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs)) - return false; - if (aIsArgs) { - a = pSlice.call(a); - b = pSlice.call(b); - return _deepEqual(a, b, strict); - } - var ka = objectKeys(a); - var kb = objectKeys(b); - var key, i; - // having the same number of owned properties (keys incorporates - // hasOwnProperty) - if (ka.length !== kb.length) - return false; - //the same set of keys (although not necessarily the same order), - ka.sort(); - kb.sort(); - //~~~cheap key test - for (i = ka.length - 1; i >= 0; i--) { - if (ka[i] !== kb[i]) - return false; - } - //equivalent values for every corresponding key, and - //~~~possibly expensive deep test - for (i = ka.length - 1; i >= 0; i--) { - key = ka[i]; - if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects)) - return false; - } - return true; -} - -// 8. The non-equivalence assertion tests for any deep inequality. -// assert.notDeepEqual(actual, expected, message_opt); - -assert.notDeepEqual = function notDeepEqual(actual, expected, message) { - if (_deepEqual(actual, expected, false)) { - fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual); - } -}; - -assert.notDeepStrictEqual = notDeepStrictEqual; -function notDeepStrictEqual(actual, expected, message) { - if (_deepEqual(actual, expected, true)) { - fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual); - } -} - - -// 9. The strict equality assertion tests strict equality, as determined by ===. -// assert.strictEqual(actual, expected, message_opt); - -assert.strictEqual = function strictEqual(actual, expected, message) { - if (actual !== expected) { - fail(actual, expected, message, '===', assert.strictEqual); - } -}; - -// 10. The strict non-equality assertion tests for strict inequality, as -// determined by !==. assert.notStrictEqual(actual, expected, message_opt); - -assert.notStrictEqual = function notStrictEqual(actual, expected, message) { - if (actual === expected) { - fail(actual, expected, message, '!==', assert.notStrictEqual); - } -}; - -function expectedException(actual, expected) { - if (!actual || !expected) { - return false; - } - - if (Object.prototype.toString.call(expected) == '[object RegExp]') { - return expected.test(actual); - } - - try { - if (actual instanceof expected) { - return true; - } - } catch (e) { - // Ignore. The instanceof check doesn't work for arrow functions. - } - - if (Error.isPrototypeOf(expected)) { - return false; - } - - return expected.call({}, actual) === true; -} - -function _tryBlock(block) { - var error; - try { - block(); - } catch (e) { - error = e; - } - return error; -} - -function _throws(shouldThrow, block, expected, message) { - var actual; - - if (typeof block !== 'function') { - throw new TypeError('"block" argument must be a function'); - } - - if (typeof expected === 'string') { - message = expected; - expected = null; - } - - actual = _tryBlock(block); - - message = (expected && expected.name ? ' (' + expected.name + ').' : '.') + - (message ? ' ' + message : '.'); - - if (shouldThrow && !actual) { - fail(actual, expected, 'Missing expected exception' + message); - } - - var userProvidedMessage = typeof message === 'string'; - var isUnwantedException = !shouldThrow && util.isError(actual); - var isUnexpectedException = !shouldThrow && actual && !expected; - - if ((isUnwantedException && - userProvidedMessage && - expectedException(actual, expected)) || - isUnexpectedException) { - fail(actual, expected, 'Got unwanted exception' + message); - } - - if ((shouldThrow && actual && expected && - !expectedException(actual, expected)) || (!shouldThrow && actual)) { - throw actual; - } -} - -// 11. Expected to throw an error: -// assert.throws(block, Error_opt, message_opt); - -assert.throws = function(block, /*optional*/error, /*optional*/message) { - _throws(true, block, error, message); -}; - -// EXTENSION! This is annoying to write outside this module. -assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) { - _throws(false, block, error, message); -}; - -assert.ifError = function(err) { if (err) throw err; }; - -// Expose a strict only variant of assert -function strict(value, message) { - if (!value) fail(value, true, message, '==', strict); -} -assert.strict = objectAssign(strict, assert, { - equal: assert.strictEqual, - deepEqual: assert.deepStrictEqual, - notEqual: assert.notStrictEqual, - notDeepEqual: assert.notDeepStrictEqual -}); -assert.strict.strict = assert.strict; - -var objectKeys = Object.keys || function (obj) { - var keys = []; - for (var key in obj) { - if (hasOwn.call(obj, key)) keys.push(key); - } - return keys; -}; - -}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"object-assign":665,"util/":29}],27:[function(require,module,exports){ -if (typeof Object.create === 'function') { - // implementation from standard node.js 'util' module - module.exports = function inherits(ctor, superCtor) { - ctor.super_ = superCtor - ctor.prototype = Object.create(superCtor.prototype, { - constructor: { - value: ctor, - enumerable: false, - writable: true, - configurable: true - } - }); - }; -} else { - // old school shim for old browsers - module.exports = function inherits(ctor, superCtor) { - ctor.super_ = superCtor - var TempCtor = function () {} - TempCtor.prototype = superCtor.prototype - ctor.prototype = new TempCtor() - ctor.prototype.constructor = ctor - } -} - -},{}],28:[function(require,module,exports){ -module.exports = function isBuffer(arg) { - return arg && typeof arg === 'object' - && typeof arg.copy === 'function' - && typeof arg.fill === 'function' - && typeof arg.readUInt8 === 'function'; -} -},{}],29:[function(require,module,exports){ -(function (process,global){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -var formatRegExp = /%[sdj%]/g; -exports.format = function(f) { - if (!isString(f)) { - var objects = []; - for (var i = 0; i < arguments.length; i++) { - objects.push(inspect(arguments[i])); - } - return objects.join(' '); - } - - var i = 1; - var args = arguments; - var len = args.length; - var str = String(f).replace(formatRegExp, function(x) { - if (x === '%%') return '%'; - if (i >= len) return x; - switch (x) { - case '%s': return String(args[i++]); - case '%d': return Number(args[i++]); - case '%j': - try { - return JSON.stringify(args[i++]); - } catch (_) { - return '[Circular]'; - } - default: - return x; - } - }); - for (var x = args[i]; i < len; x = args[++i]) { - if (isNull(x) || !isObject(x)) { - str += ' ' + x; - } else { - str += ' ' + inspect(x); - } - } - return str; -}; - - -// Mark that a method should not be used. -// Returns a modified function which warns once by default. -// If --no-deprecation is set, then it is a no-op. -exports.deprecate = function(fn, msg) { - // Allow for deprecating things in the process of starting up. - if (isUndefined(global.process)) { - return function() { - return exports.deprecate(fn, msg).apply(this, arguments); - }; - } - - if (process.noDeprecation === true) { - return fn; - } - - var warned = false; - function deprecated() { - if (!warned) { - if (process.throwDeprecation) { - throw new Error(msg); - } else if (process.traceDeprecation) { - console.trace(msg); - } else { - console.error(msg); - } - warned = true; - } - return fn.apply(this, arguments); - } - - return deprecated; -}; - - -var debugs = {}; -var debugEnviron; -exports.debuglog = function(set) { - if (isUndefined(debugEnviron)) - debugEnviron = process.env.NODE_DEBUG || ''; - set = set.toUpperCase(); - if (!debugs[set]) { - if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) { - var pid = process.pid; - debugs[set] = function() { - var msg = exports.format.apply(exports, arguments); - console.error('%s %d: %s', set, pid, msg); - }; - } else { - debugs[set] = function() {}; - } - } - return debugs[set]; -}; - - -/** - * Echos the value of a value. Trys to print the value out - * in the best way possible given the different types. - * - * @param {Object} obj The object to print out. - * @param {Object} opts Optional options object that alters the output. - */ -/* legacy: obj, showHidden, depth, colors*/ -function inspect(obj, opts) { - // default options - var ctx = { - seen: [], - stylize: stylizeNoColor - }; - // legacy... - if (arguments.length >= 3) ctx.depth = arguments[2]; - if (arguments.length >= 4) ctx.colors = arguments[3]; - if (isBoolean(opts)) { - // legacy... - ctx.showHidden = opts; - } else if (opts) { - // got an "options" object - exports._extend(ctx, opts); - } - // set default options - if (isUndefined(ctx.showHidden)) ctx.showHidden = false; - if (isUndefined(ctx.depth)) ctx.depth = 2; - if (isUndefined(ctx.colors)) ctx.colors = false; - if (isUndefined(ctx.customInspect)) ctx.customInspect = true; - if (ctx.colors) ctx.stylize = stylizeWithColor; - return formatValue(ctx, obj, ctx.depth); -} -exports.inspect = inspect; - - -// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics -inspect.colors = { - 'bold' : [1, 22], - 'italic' : [3, 23], - 'underline' : [4, 24], - 'inverse' : [7, 27], - 'white' : [37, 39], - 'grey' : [90, 39], - 'black' : [30, 39], - 'blue' : [34, 39], - 'cyan' : [36, 39], - 'green' : [32, 39], - 'magenta' : [35, 39], - 'red' : [31, 39], - 'yellow' : [33, 39] -}; - -// Don't use 'blue' not visible on cmd.exe -inspect.styles = { - 'special': 'cyan', - 'number': 'yellow', - 'boolean': 'yellow', - 'undefined': 'grey', - 'null': 'bold', - 'string': 'green', - 'date': 'magenta', - // "name": intentionally not styling - 'regexp': 'red' -}; - - -function stylizeWithColor(str, styleType) { - var style = inspect.styles[styleType]; - - if (style) { - return '\u001b[' + inspect.colors[style][0] + 'm' + str + - '\u001b[' + inspect.colors[style][1] + 'm'; - } else { - return str; - } -} - - -function stylizeNoColor(str, styleType) { - return str; -} - - -function arrayToHash(array) { - var hash = {}; - - array.forEach(function(val, idx) { - hash[val] = true; - }); - - return hash; -} - - -function formatValue(ctx, value, recurseTimes) { - // Provide a hook for user-specified inspect functions. - // Check that value is an object with an inspect function on it - if (ctx.customInspect && - value && - isFunction(value.inspect) && - // Filter out the util module, it's inspect function is special - value.inspect !== exports.inspect && - // Also filter out any prototype objects using the circular check. - !(value.constructor && value.constructor.prototype === value)) { - var ret = value.inspect(recurseTimes, ctx); - if (!isString(ret)) { - ret = formatValue(ctx, ret, recurseTimes); - } - return ret; - } - - // Primitive types cannot have properties - var primitive = formatPrimitive(ctx, value); - if (primitive) { - return primitive; - } - - // Look up the keys of the object. - var keys = Object.keys(value); - var visibleKeys = arrayToHash(keys); - - if (ctx.showHidden) { - keys = Object.getOwnPropertyNames(value); - } - - // IE doesn't make error fields non-enumerable - // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx - if (isError(value) - && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) { - return formatError(value); - } - - // Some type of object without properties can be shortcutted. - if (keys.length === 0) { - if (isFunction(value)) { - var name = value.name ? ': ' + value.name : ''; - return ctx.stylize('[Function' + name + ']', 'special'); - } - if (isRegExp(value)) { - return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); - } - if (isDate(value)) { - return ctx.stylize(Date.prototype.toString.call(value), 'date'); - } - if (isError(value)) { - return formatError(value); - } - } - - var base = '', array = false, braces = ['{', '}']; - - // Make Array say that they are Array - if (isArray(value)) { - array = true; - braces = ['[', ']']; - } - - // Make functions say that they are functions - if (isFunction(value)) { - var n = value.name ? ': ' + value.name : ''; - base = ' [Function' + n + ']'; - } - - // Make RegExps say that they are RegExps - if (isRegExp(value)) { - base = ' ' + RegExp.prototype.toString.call(value); - } - - // Make dates with properties first say the date - if (isDate(value)) { - base = ' ' + Date.prototype.toUTCString.call(value); - } - - // Make error with message first say the error - if (isError(value)) { - base = ' ' + formatError(value); - } - - if (keys.length === 0 && (!array || value.length == 0)) { - return braces[0] + base + braces[1]; - } - - if (recurseTimes < 0) { - if (isRegExp(value)) { - return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); - } else { - return ctx.stylize('[Object]', 'special'); - } - } - - ctx.seen.push(value); - - var output; - if (array) { - output = formatArray(ctx, value, recurseTimes, visibleKeys, keys); - } else { - output = keys.map(function(key) { - return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array); - }); - } - - ctx.seen.pop(); - - return reduceToSingleString(output, base, braces); -} - - -function formatPrimitive(ctx, value) { - if (isUndefined(value)) - return ctx.stylize('undefined', 'undefined'); - if (isString(value)) { - var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '') - .replace(/'/g, "\\'") - .replace(/\\"/g, '"') + '\''; - return ctx.stylize(simple, 'string'); - } - if (isNumber(value)) - return ctx.stylize('' + value, 'number'); - if (isBoolean(value)) - return ctx.stylize('' + value, 'boolean'); - // For some reason typeof null is "object", so special case here. - if (isNull(value)) - return ctx.stylize('null', 'null'); -} - - -function formatError(value) { - return '[' + Error.prototype.toString.call(value) + ']'; -} - - -function formatArray(ctx, value, recurseTimes, visibleKeys, keys) { - var output = []; - for (var i = 0, l = value.length; i < l; ++i) { - if (hasOwnProperty(value, String(i))) { - output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, - String(i), true)); - } else { - output.push(''); - } - } - keys.forEach(function(key) { - if (!key.match(/^\d+$/)) { - output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, - key, true)); - } - }); - return output; -} - - -function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) { - var name, str, desc; - desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] }; - if (desc.get) { - if (desc.set) { - str = ctx.stylize('[Getter/Setter]', 'special'); - } else { - str = ctx.stylize('[Getter]', 'special'); - } - } else { - if (desc.set) { - str = ctx.stylize('[Setter]', 'special'); - } - } - if (!hasOwnProperty(visibleKeys, key)) { - name = '[' + key + ']'; - } - if (!str) { - if (ctx.seen.indexOf(desc.value) < 0) { - if (isNull(recurseTimes)) { - str = formatValue(ctx, desc.value, null); - } else { - str = formatValue(ctx, desc.value, recurseTimes - 1); - } - if (str.indexOf('\n') > -1) { - if (array) { - str = str.split('\n').map(function(line) { - return ' ' + line; - }).join('\n').substr(2); - } else { - str = '\n' + str.split('\n').map(function(line) { - return ' ' + line; - }).join('\n'); - } - } - } else { - str = ctx.stylize('[Circular]', 'special'); - } - } - if (isUndefined(name)) { - if (array && key.match(/^\d+$/)) { - return str; - } - name = JSON.stringify('' + key); - if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) { - name = name.substr(1, name.length - 2); - name = ctx.stylize(name, 'name'); - } else { - name = name.replace(/'/g, "\\'") - .replace(/\\"/g, '"') - .replace(/(^"|"$)/g, "'"); - name = ctx.stylize(name, 'string'); - } - } - - return name + ': ' + str; -} - - -function reduceToSingleString(output, base, braces) { - var numLinesEst = 0; - var length = output.reduce(function(prev, cur) { - numLinesEst++; - if (cur.indexOf('\n') >= 0) numLinesEst++; - return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1; - }, 0); - - if (length > 60) { - return braces[0] + - (base === '' ? '' : base + '\n ') + - ' ' + - output.join(',\n ') + - ' ' + - braces[1]; - } - - return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1]; -} - - -// NOTE: These type checking functions intentionally don't use `instanceof` -// because it is fragile and can be easily faked with `Object.create()`. -function isArray(ar) { - return Array.isArray(ar); -} -exports.isArray = isArray; - -function isBoolean(arg) { - return typeof arg === 'boolean'; -} -exports.isBoolean = isBoolean; - -function isNull(arg) { - return arg === null; -} -exports.isNull = isNull; - -function isNullOrUndefined(arg) { - return arg == null; -} -exports.isNullOrUndefined = isNullOrUndefined; - -function isNumber(arg) { - return typeof arg === 'number'; -} -exports.isNumber = isNumber; - -function isString(arg) { - return typeof arg === 'string'; -} -exports.isString = isString; - -function isSymbol(arg) { - return typeof arg === 'symbol'; -} -exports.isSymbol = isSymbol; - -function isUndefined(arg) { - return arg === void 0; -} -exports.isUndefined = isUndefined; - -function isRegExp(re) { - return isObject(re) && objectToString(re) === '[object RegExp]'; -} -exports.isRegExp = isRegExp; - -function isObject(arg) { - return typeof arg === 'object' && arg !== null; -} -exports.isObject = isObject; - -function isDate(d) { - return isObject(d) && objectToString(d) === '[object Date]'; -} -exports.isDate = isDate; - -function isError(e) { - return isObject(e) && - (objectToString(e) === '[object Error]' || e instanceof Error); -} -exports.isError = isError; - -function isFunction(arg) { - return typeof arg === 'function'; -} -exports.isFunction = isFunction; - -function isPrimitive(arg) { - return arg === null || - typeof arg === 'boolean' || - typeof arg === 'number' || - typeof arg === 'string' || - typeof arg === 'symbol' || // ES6 symbol - typeof arg === 'undefined'; -} -exports.isPrimitive = isPrimitive; - -exports.isBuffer = require('./support/isBuffer'); - -function objectToString(o) { - return Object.prototype.toString.call(o); -} - - -function pad(n) { - return n < 10 ? '0' + n.toString(10) : n.toString(10); -} - - -var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', - 'Oct', 'Nov', 'Dec']; - -// 26 Feb 16:19:34 -function timestamp() { - var d = new Date(); - var time = [pad(d.getHours()), - pad(d.getMinutes()), - pad(d.getSeconds())].join(':'); - return [d.getDate(), months[d.getMonth()], time].join(' '); -} - - -// log is just a thin wrapper to console.log that prepends a timestamp -exports.log = function() { - console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments)); -}; - - -/** - * Inherit the prototype methods from one constructor into another. - * - * The Function.prototype.inherits from lang.js rewritten as a standalone - * function (not on Function.prototype). NOTE: If this file is to be loaded - * during bootstrapping this function needs to be rewritten using some native - * functions as prototype setup using normal JavaScript does not work as - * expected during bootstrapping (see mirror.js in r114903). - * - * @param {function} ctor Constructor function which needs to inherit the - * prototype. - * @param {function} superCtor Constructor function to inherit prototype from. - */ -exports.inherits = require('inherits'); - -exports._extend = function(origin, add) { - // Don't do anything if add isn't an object - if (!add || !isObject(add)) return origin; - - var keys = Object.keys(add); - var i = keys.length; - while (i--) { - origin[keys[i]] = add[keys[i]]; - } - return origin; -}; - -function hasOwnProperty(obj, prop) { - return Object.prototype.hasOwnProperty.call(obj, prop); -} - -}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"./support/isBuffer":28,"_process":678,"inherits":27}],30:[function(require,module,exports){ -module.exports = require('./lib/axios'); -},{"./lib/axios":32}],31:[function(require,module,exports){ -'use strict'; - -var utils = require('./../utils'); -var settle = require('./../core/settle'); -var buildURL = require('./../helpers/buildURL'); -var parseHeaders = require('./../helpers/parseHeaders'); -var isURLSameOrigin = require('./../helpers/isURLSameOrigin'); -var createError = require('../core/createError'); - -module.exports = function xhrAdapter(config) { - return new Promise(function dispatchXhrRequest(resolve, reject) { - var requestData = config.data; - var requestHeaders = config.headers; - - if (utils.isFormData(requestData)) { - delete requestHeaders['Content-Type']; // Let the browser set it - } - - var request = new XMLHttpRequest(); - - // HTTP basic authentication - if (config.auth) { - var username = config.auth.username || ''; - var password = config.auth.password || ''; - requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password); - } - - request.open(config.method.toUpperCase(), buildURL(config.url, config.params, config.paramsSerializer), true); - - // Set the request timeout in MS - request.timeout = config.timeout; - - // Listen for ready state - request.onreadystatechange = function handleLoad() { - if (!request || request.readyState !== 4) { - return; - } - - // The request errored out and we didn't get a response, this will be - // handled by onerror instead - // With one exception: request that using file: protocol, most browsers - // will return status as 0 even though it's a successful request - if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) { - return; - } - - // Prepare the response - var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null; - var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response; - var response = { - data: responseData, - status: request.status, - statusText: request.statusText, - headers: responseHeaders, - config: config, - request: request - }; - - settle(resolve, reject, response); - - // Clean up request - request = null; - }; - - // Handle low level network errors - request.onerror = function handleError() { - // Real errors are hidden from us by the browser - // onerror should only fire if it's a network error - reject(createError('Network Error', config, null, request)); - - // Clean up request - request = null; - }; - - // Handle timeout - request.ontimeout = function handleTimeout() { - reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED', - request)); - - // Clean up request - request = null; - }; - - // Add xsrf header - // This is only done if running in a standard browser environment. - // Specifically not if we're in a web worker, or react-native. - if (utils.isStandardBrowserEnv()) { - var cookies = require('./../helpers/cookies'); - - // Add xsrf header - var xsrfValue = (config.withCredentials || isURLSameOrigin(config.url)) && config.xsrfCookieName ? - cookies.read(config.xsrfCookieName) : - undefined; - - if (xsrfValue) { - requestHeaders[config.xsrfHeaderName] = xsrfValue; - } - } - - // Add headers to the request - if ('setRequestHeader' in request) { - utils.forEach(requestHeaders, function setRequestHeader(val, key) { - if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') { - // Remove Content-Type if data is undefined - delete requestHeaders[key]; - } else { - // Otherwise add header to the request - request.setRequestHeader(key, val); - } - }); - } - - // Add withCredentials to request if needed - if (config.withCredentials) { - request.withCredentials = true; - } - - // Add responseType to request if needed - if (config.responseType) { - try { - request.responseType = config.responseType; - } catch (e) { - // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2. - // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function. - if (config.responseType !== 'json') { - throw e; - } - } - } - - // Handle progress if needed - if (typeof config.onDownloadProgress === 'function') { - request.addEventListener('progress', config.onDownloadProgress); - } - - // Not all browsers support upload events - if (typeof config.onUploadProgress === 'function' && request.upload) { - request.upload.addEventListener('progress', config.onUploadProgress); - } - - if (config.cancelToken) { - // Handle cancellation - config.cancelToken.promise.then(function onCanceled(cancel) { - if (!request) { - return; - } - - request.abort(); - reject(cancel); - // Clean up request - request = null; - }); - } - - if (requestData === undefined) { - requestData = null; - } - - // Send the request - request.send(requestData); - }); -}; - -},{"../core/createError":38,"./../core/settle":41,"./../helpers/buildURL":45,"./../helpers/cookies":47,"./../helpers/isURLSameOrigin":49,"./../helpers/parseHeaders":51,"./../utils":53}],32:[function(require,module,exports){ -'use strict'; - -var utils = require('./utils'); -var bind = require('./helpers/bind'); -var Axios = require('./core/Axios'); -var defaults = require('./defaults'); - -/** - * Create an instance of Axios - * - * @param {Object} defaultConfig The default config for the instance - * @return {Axios} A new instance of Axios - */ -function createInstance(defaultConfig) { - var context = new Axios(defaultConfig); - var instance = bind(Axios.prototype.request, context); - - // Copy axios.prototype to instance - utils.extend(instance, Axios.prototype, context); - - // Copy context to instance - utils.extend(instance, context); - - return instance; -} - -// Create the default instance to be exported -var axios = createInstance(defaults); - -// Expose Axios class to allow class inheritance -axios.Axios = Axios; - -// Factory for creating new instances -axios.create = function create(instanceConfig) { - return createInstance(utils.merge(defaults, instanceConfig)); -}; - -// Expose Cancel & CancelToken -axios.Cancel = require('./cancel/Cancel'); -axios.CancelToken = require('./cancel/CancelToken'); -axios.isCancel = require('./cancel/isCancel'); - -// Expose all/spread -axios.all = function all(promises) { - return Promise.all(promises); -}; -axios.spread = require('./helpers/spread'); - -module.exports = axios; - -// Allow use of default import syntax in TypeScript -module.exports.default = axios; - -},{"./cancel/Cancel":33,"./cancel/CancelToken":34,"./cancel/isCancel":35,"./core/Axios":36,"./defaults":43,"./helpers/bind":44,"./helpers/spread":52,"./utils":53}],33:[function(require,module,exports){ -'use strict'; - -/** - * A `Cancel` is an object that is thrown when an operation is canceled. - * - * @class - * @param {string=} message The message. - */ -function Cancel(message) { - this.message = message; -} - -Cancel.prototype.toString = function toString() { - return 'Cancel' + (this.message ? ': ' + this.message : ''); -}; - -Cancel.prototype.__CANCEL__ = true; - -module.exports = Cancel; - -},{}],34:[function(require,module,exports){ -'use strict'; - -var Cancel = require('./Cancel'); - -/** - * A `CancelToken` is an object that can be used to request cancellation of an operation. - * - * @class - * @param {Function} executor The executor function. - */ -function CancelToken(executor) { - if (typeof executor !== 'function') { - throw new TypeError('executor must be a function.'); - } - - var resolvePromise; - this.promise = new Promise(function promiseExecutor(resolve) { - resolvePromise = resolve; - }); - - var token = this; - executor(function cancel(message) { - if (token.reason) { - // Cancellation has already been requested - return; - } - - token.reason = new Cancel(message); - resolvePromise(token.reason); - }); -} - -/** - * Throws a `Cancel` if cancellation has been requested. - */ -CancelToken.prototype.throwIfRequested = function throwIfRequested() { - if (this.reason) { - throw this.reason; - } -}; - -/** - * Returns an object that contains a new `CancelToken` and a function that, when called, - * cancels the `CancelToken`. - */ -CancelToken.source = function source() { - var cancel; - var token = new CancelToken(function executor(c) { - cancel = c; - }); - return { - token: token, - cancel: cancel - }; -}; - -module.exports = CancelToken; - -},{"./Cancel":33}],35:[function(require,module,exports){ -'use strict'; - -module.exports = function isCancel(value) { - return !!(value && value.__CANCEL__); -}; - -},{}],36:[function(require,module,exports){ -'use strict'; - -var defaults = require('./../defaults'); -var utils = require('./../utils'); -var InterceptorManager = require('./InterceptorManager'); -var dispatchRequest = require('./dispatchRequest'); - -/** - * Create a new instance of Axios - * - * @param {Object} instanceConfig The default config for the instance - */ -function Axios(instanceConfig) { - this.defaults = instanceConfig; - this.interceptors = { - request: new InterceptorManager(), - response: new InterceptorManager() - }; -} - -/** - * Dispatch a request - * - * @param {Object} config The config specific for this request (merged with this.defaults) - */ -Axios.prototype.request = function request(config) { - /*eslint no-param-reassign:0*/ - // Allow for axios('example/url'[, config]) a la fetch API - if (typeof config === 'string') { - config = utils.merge({ - url: arguments[0] - }, arguments[1]); - } - - config = utils.merge(defaults, {method: 'get'}, this.defaults, config); - config.method = config.method.toLowerCase(); - - // Hook up interceptors middleware - var chain = [dispatchRequest, undefined]; - var promise = Promise.resolve(config); - - this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) { - chain.unshift(interceptor.fulfilled, interceptor.rejected); - }); - - this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) { - chain.push(interceptor.fulfilled, interceptor.rejected); - }); - - while (chain.length) { - promise = promise.then(chain.shift(), chain.shift()); - } - - return promise; -}; - -// Provide aliases for supported request methods -utils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) { - /*eslint func-names:0*/ - Axios.prototype[method] = function(url, config) { - return this.request(utils.merge(config || {}, { - method: method, - url: url - })); - }; -}); - -utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) { - /*eslint func-names:0*/ - Axios.prototype[method] = function(url, data, config) { - return this.request(utils.merge(config || {}, { - method: method, - url: url, - data: data - })); - }; -}); - -module.exports = Axios; - -},{"./../defaults":43,"./../utils":53,"./InterceptorManager":37,"./dispatchRequest":39}],37:[function(require,module,exports){ -'use strict'; - -var utils = require('./../utils'); - -function InterceptorManager() { - this.handlers = []; -} - -/** - * Add a new interceptor to the stack - * - * @param {Function} fulfilled The function to handle `then` for a `Promise` - * @param {Function} rejected The function to handle `reject` for a `Promise` - * - * @return {Number} An ID used to remove interceptor later - */ -InterceptorManager.prototype.use = function use(fulfilled, rejected) { - this.handlers.push({ - fulfilled: fulfilled, - rejected: rejected - }); - return this.handlers.length - 1; -}; - -/** - * Remove an interceptor from the stack - * - * @param {Number} id The ID that was returned by `use` - */ -InterceptorManager.prototype.eject = function eject(id) { - if (this.handlers[id]) { - this.handlers[id] = null; - } -}; - -/** - * Iterate over all the registered interceptors - * - * This method is particularly useful for skipping over any - * interceptors that may have become `null` calling `eject`. - * - * @param {Function} fn The function to call for each interceptor - */ -InterceptorManager.prototype.forEach = function forEach(fn) { - utils.forEach(this.handlers, function forEachHandler(h) { - if (h !== null) { - fn(h); - } - }); -}; - -module.exports = InterceptorManager; - -},{"./../utils":53}],38:[function(require,module,exports){ -'use strict'; - -var enhanceError = require('./enhanceError'); - -/** - * Create an Error with the specified message, config, error code, request and response. - * - * @param {string} message The error message. - * @param {Object} config The config. - * @param {string} [code] The error code (for example, 'ECONNABORTED'). - * @param {Object} [request] The request. - * @param {Object} [response] The response. - * @returns {Error} The created error. - */ -module.exports = function createError(message, config, code, request, response) { - var error = new Error(message); - return enhanceError(error, config, code, request, response); -}; - -},{"./enhanceError":40}],39:[function(require,module,exports){ -'use strict'; - -var utils = require('./../utils'); -var transformData = require('./transformData'); -var isCancel = require('../cancel/isCancel'); -var defaults = require('../defaults'); -var isAbsoluteURL = require('./../helpers/isAbsoluteURL'); -var combineURLs = require('./../helpers/combineURLs'); - -/** - * Throws a `Cancel` if cancellation has been requested. - */ -function throwIfCancellationRequested(config) { - if (config.cancelToken) { - config.cancelToken.throwIfRequested(); - } -} - -/** - * Dispatch a request to the server using the configured adapter. - * - * @param {object} config The config that is to be used for the request - * @returns {Promise} The Promise to be fulfilled - */ -module.exports = function dispatchRequest(config) { - throwIfCancellationRequested(config); - - // Support baseURL config - if (config.baseURL && !isAbsoluteURL(config.url)) { - config.url = combineURLs(config.baseURL, config.url); - } - - // Ensure headers exist - config.headers = config.headers || {}; - - // Transform request data - config.data = transformData( - config.data, - config.headers, - config.transformRequest - ); - - // Flatten headers - config.headers = utils.merge( - config.headers.common || {}, - config.headers[config.method] || {}, - config.headers || {} - ); - - utils.forEach( - ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'], - function cleanHeaderConfig(method) { - delete config.headers[method]; - } - ); - - var adapter = config.adapter || defaults.adapter; - - return adapter(config).then(function onAdapterResolution(response) { - throwIfCancellationRequested(config); - - // Transform response data - response.data = transformData( - response.data, - response.headers, - config.transformResponse - ); - - return response; - }, function onAdapterRejection(reason) { - if (!isCancel(reason)) { - throwIfCancellationRequested(config); - - // Transform response data - if (reason && reason.response) { - reason.response.data = transformData( - reason.response.data, - reason.response.headers, - config.transformResponse - ); - } - } - - return Promise.reject(reason); - }); -}; - -},{"../cancel/isCancel":35,"../defaults":43,"./../helpers/combineURLs":46,"./../helpers/isAbsoluteURL":48,"./../utils":53,"./transformData":42}],40:[function(require,module,exports){ -'use strict'; - -/** - * Update an Error with the specified config, error code, and response. - * - * @param {Error} error The error to update. - * @param {Object} config The config. - * @param {string} [code] The error code (for example, 'ECONNABORTED'). - * @param {Object} [request] The request. - * @param {Object} [response] The response. - * @returns {Error} The error. - */ -module.exports = function enhanceError(error, config, code, request, response) { - error.config = config; - if (code) { - error.code = code; - } - error.request = request; - error.response = response; - return error; -}; - -},{}],41:[function(require,module,exports){ -'use strict'; - -var createError = require('./createError'); - -/** - * Resolve or reject a Promise based on response status. - * - * @param {Function} resolve A function that resolves the promise. - * @param {Function} reject A function that rejects the promise. - * @param {object} response The response. - */ -module.exports = function settle(resolve, reject, response) { - var validateStatus = response.config.validateStatus; - // Note: status is not exposed by XDomainRequest - if (!response.status || !validateStatus || validateStatus(response.status)) { - resolve(response); - } else { - reject(createError( - 'Request failed with status code ' + response.status, - response.config, - null, - response.request, - response - )); - } -}; - -},{"./createError":38}],42:[function(require,module,exports){ -'use strict'; - -var utils = require('./../utils'); - -/** - * Transform the data for a request or a response - * - * @param {Object|String} data The data to be transformed - * @param {Array} headers The headers for the request or response - * @param {Array|Function} fns A single function or Array of functions - * @returns {*} The resulting transformed data - */ -module.exports = function transformData(data, headers, fns) { - /*eslint no-param-reassign:0*/ - utils.forEach(fns, function transform(fn) { - data = fn(data, headers); - }); - - return data; -}; - -},{"./../utils":53}],43:[function(require,module,exports){ -(function (process){ -'use strict'; - -var utils = require('./utils'); -var normalizeHeaderName = require('./helpers/normalizeHeaderName'); - -var DEFAULT_CONTENT_TYPE = { - 'Content-Type': 'application/x-www-form-urlencoded' -}; - -function setContentTypeIfUnset(headers, value) { - if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) { - headers['Content-Type'] = value; - } -} - -function getDefaultAdapter() { - var adapter; - if (typeof XMLHttpRequest !== 'undefined') { - // For browsers use XHR adapter - adapter = require('./adapters/xhr'); - } else if (typeof process !== 'undefined') { - // For node use HTTP adapter - adapter = require('./adapters/http'); - } - return adapter; -} - -var defaults = { - adapter: getDefaultAdapter(), - - transformRequest: [function transformRequest(data, headers) { - normalizeHeaderName(headers, 'Content-Type'); - if (utils.isFormData(data) || - utils.isArrayBuffer(data) || - utils.isBuffer(data) || - utils.isStream(data) || - utils.isFile(data) || - utils.isBlob(data) - ) { - return data; - } - if (utils.isArrayBufferView(data)) { - return data.buffer; - } - if (utils.isURLSearchParams(data)) { - setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8'); - return data.toString(); - } - if (utils.isObject(data)) { - setContentTypeIfUnset(headers, 'application/json;charset=utf-8'); - return JSON.stringify(data); - } - return data; - }], - - transformResponse: [function transformResponse(data) { - /*eslint no-param-reassign:0*/ - if (typeof data === 'string') { - try { - data = JSON.parse(data); - } catch (e) { /* Ignore */ } - } - return data; - }], - - /** - * A timeout in milliseconds to abort a request. If set to 0 (default) a - * timeout is not created. - */ - timeout: 0, - - xsrfCookieName: 'XSRF-TOKEN', - xsrfHeaderName: 'X-XSRF-TOKEN', - - maxContentLength: -1, - - validateStatus: function validateStatus(status) { - return status >= 200 && status < 300; - } -}; - -defaults.headers = { - common: { - 'Accept': 'application/json, text/plain, */*' - } -}; - -utils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) { - defaults.headers[method] = {}; -}); - -utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) { - defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE); -}); - -module.exports = defaults; - -}).call(this,require('_process')) -},{"./adapters/http":31,"./adapters/xhr":31,"./helpers/normalizeHeaderName":50,"./utils":53,"_process":678}],44:[function(require,module,exports){ -'use strict'; - -module.exports = function bind(fn, thisArg) { - return function wrap() { - var args = new Array(arguments.length); - for (var i = 0; i < args.length; i++) { - args[i] = arguments[i]; - } - return fn.apply(thisArg, args); - }; -}; - -},{}],45:[function(require,module,exports){ -'use strict'; - -var utils = require('./../utils'); - -function encode(val) { - return encodeURIComponent(val). - replace(/%40/gi, '@'). - replace(/%3A/gi, ':'). - replace(/%24/g, '$'). - replace(/%2C/gi, ','). - replace(/%20/g, '+'). - replace(/%5B/gi, '['). - replace(/%5D/gi, ']'); -} - -/** - * Build a URL by appending params to the end - * - * @param {string} url The base of the url (e.g., http://www.google.com) - * @param {object} [params] The params to be appended - * @returns {string} The formatted url - */ -module.exports = function buildURL(url, params, paramsSerializer) { - /*eslint no-param-reassign:0*/ - if (!params) { - return url; - } - - var serializedParams; - if (paramsSerializer) { - serializedParams = paramsSerializer(params); - } else if (utils.isURLSearchParams(params)) { - serializedParams = params.toString(); - } else { - var parts = []; - - utils.forEach(params, function serialize(val, key) { - if (val === null || typeof val === 'undefined') { - return; - } - - if (utils.isArray(val)) { - key = key + '[]'; - } else { - val = [val]; - } - - utils.forEach(val, function parseValue(v) { - if (utils.isDate(v)) { - v = v.toISOString(); - } else if (utils.isObject(v)) { - v = JSON.stringify(v); - } - parts.push(encode(key) + '=' + encode(v)); - }); - }); - - serializedParams = parts.join('&'); - } - - if (serializedParams) { - url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams; - } - - return url; -}; - -},{"./../utils":53}],46:[function(require,module,exports){ -'use strict'; - -/** - * Creates a new URL by combining the specified URLs - * - * @param {string} baseURL The base URL - * @param {string} relativeURL The relative URL - * @returns {string} The combined URL - */ -module.exports = function combineURLs(baseURL, relativeURL) { - return relativeURL - ? baseURL.replace(/\/+$/, '') + '/' + relativeURL.replace(/^\/+/, '') - : baseURL; -}; - -},{}],47:[function(require,module,exports){ -'use strict'; - -var utils = require('./../utils'); - -module.exports = ( - utils.isStandardBrowserEnv() ? - - // Standard browser envs support document.cookie - (function standardBrowserEnv() { - return { - write: function write(name, value, expires, path, domain, secure) { - var cookie = []; - cookie.push(name + '=' + encodeURIComponent(value)); - - if (utils.isNumber(expires)) { - cookie.push('expires=' + new Date(expires).toGMTString()); - } - - if (utils.isString(path)) { - cookie.push('path=' + path); - } - - if (utils.isString(domain)) { - cookie.push('domain=' + domain); - } - - if (secure === true) { - cookie.push('secure'); - } - - document.cookie = cookie.join('; '); - }, - - read: function read(name) { - var match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)')); - return (match ? decodeURIComponent(match[3]) : null); - }, - - remove: function remove(name) { - this.write(name, '', Date.now() - 86400000); - } - }; - })() : - - // Non standard browser env (web workers, react-native) lack needed support. - (function nonStandardBrowserEnv() { - return { - write: function write() {}, - read: function read() { return null; }, - remove: function remove() {} - }; - })() -); - -},{"./../utils":53}],48:[function(require,module,exports){ -'use strict'; - -/** - * Determines whether the specified URL is absolute - * - * @param {string} url The URL to test - * @returns {boolean} True if the specified URL is absolute, otherwise false - */ -module.exports = function isAbsoluteURL(url) { - // A URL is considered absolute if it begins with "://" or "//" (protocol-relative URL). - // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed - // by any combination of letters, digits, plus, period, or hyphen. - return /^([a-z][a-z\d\+\-\.]*:)?\/\//i.test(url); -}; - -},{}],49:[function(require,module,exports){ -'use strict'; - -var utils = require('./../utils'); - -module.exports = ( - utils.isStandardBrowserEnv() ? - - // Standard browser envs have full support of the APIs needed to test - // whether the request URL is of the same origin as current location. - (function standardBrowserEnv() { - var msie = /(msie|trident)/i.test(navigator.userAgent); - var urlParsingNode = document.createElement('a'); - var originURL; - - /** - * Parse a URL to discover it's components - * - * @param {String} url The URL to be parsed - * @returns {Object} - */ - function resolveURL(url) { - var href = url; - - if (msie) { - // IE needs attribute set twice to normalize properties - urlParsingNode.setAttribute('href', href); - href = urlParsingNode.href; - } - - urlParsingNode.setAttribute('href', href); - - // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils - return { - href: urlParsingNode.href, - protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '', - host: urlParsingNode.host, - search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '', - hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '', - hostname: urlParsingNode.hostname, - port: urlParsingNode.port, - pathname: (urlParsingNode.pathname.charAt(0) === '/') ? - urlParsingNode.pathname : - '/' + urlParsingNode.pathname - }; - } - - originURL = resolveURL(window.location.href); - - /** - * Determine if a URL shares the same origin as the current location - * - * @param {String} requestURL The URL to test - * @returns {boolean} True if URL shares the same origin, otherwise false - */ - return function isURLSameOrigin(requestURL) { - var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL; - return (parsed.protocol === originURL.protocol && - parsed.host === originURL.host); - }; - })() : - - // Non standard browser envs (web workers, react-native) lack needed support. - (function nonStandardBrowserEnv() { - return function isURLSameOrigin() { - return true; - }; - })() -); - -},{"./../utils":53}],50:[function(require,module,exports){ -'use strict'; - -var utils = require('../utils'); - -module.exports = function normalizeHeaderName(headers, normalizedName) { - utils.forEach(headers, function processHeader(value, name) { - if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) { - headers[normalizedName] = value; - delete headers[name]; - } - }); -}; - -},{"../utils":53}],51:[function(require,module,exports){ -'use strict'; - -var utils = require('./../utils'); - -// Headers whose duplicates are ignored by node -// c.f. https://nodejs.org/api/http.html#http_message_headers -var ignoreDuplicateOf = [ - 'age', 'authorization', 'content-length', 'content-type', 'etag', - 'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since', - 'last-modified', 'location', 'max-forwards', 'proxy-authorization', - 'referer', 'retry-after', 'user-agent' -]; - -/** - * Parse headers into an object - * - * ``` - * Date: Wed, 27 Aug 2014 08:58:49 GMT - * Content-Type: application/json - * Connection: keep-alive - * Transfer-Encoding: chunked - * ``` - * - * @param {String} headers Headers needing to be parsed - * @returns {Object} Headers parsed into an object - */ -module.exports = function parseHeaders(headers) { - var parsed = {}; - var key; - var val; - var i; - - if (!headers) { return parsed; } - - utils.forEach(headers.split('\n'), function parser(line) { - i = line.indexOf(':'); - key = utils.trim(line.substr(0, i)).toLowerCase(); - val = utils.trim(line.substr(i + 1)); - - if (key) { - if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) { - return; - } - if (key === 'set-cookie') { - parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]); - } else { - parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val; - } - } - }); - - return parsed; -}; - -},{"./../utils":53}],52:[function(require,module,exports){ -'use strict'; - -/** - * Syntactic sugar for invoking a function and expanding an array for arguments. - * - * Common use case would be to use `Function.prototype.apply`. - * - * ```js - * function f(x, y, z) {} - * var args = [1, 2, 3]; - * f.apply(null, args); - * ``` - * - * With `spread` this example can be re-written. - * - * ```js - * spread(function(x, y, z) {})([1, 2, 3]); - * ``` - * - * @param {Function} callback - * @returns {Function} - */ -module.exports = function spread(callback) { - return function wrap(arr) { - return callback.apply(null, arr); - }; -}; - -},{}],53:[function(require,module,exports){ -'use strict'; - -var bind = require('./helpers/bind'); -var isBuffer = require('is-buffer'); - -/*global toString:true*/ - -// utils is a library of generic helper functions non-specific to axios - -var toString = Object.prototype.toString; - -/** - * Determine if a value is an Array - * - * @param {Object} val The value to test - * @returns {boolean} True if value is an Array, otherwise false - */ -function isArray(val) { - return toString.call(val) === '[object Array]'; -} - -/** - * Determine if a value is an ArrayBuffer - * - * @param {Object} val The value to test - * @returns {boolean} True if value is an ArrayBuffer, otherwise false - */ -function isArrayBuffer(val) { - return toString.call(val) === '[object ArrayBuffer]'; -} - -/** - * Determine if a value is a FormData - * - * @param {Object} val The value to test - * @returns {boolean} True if value is an FormData, otherwise false - */ -function isFormData(val) { - return (typeof FormData !== 'undefined') && (val instanceof FormData); -} - -/** - * Determine if a value is a view on an ArrayBuffer - * - * @param {Object} val The value to test - * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false - */ -function isArrayBufferView(val) { - var result; - if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) { - result = ArrayBuffer.isView(val); - } else { - result = (val) && (val.buffer) && (val.buffer instanceof ArrayBuffer); - } - return result; -} - -/** - * Determine if a value is a String - * - * @param {Object} val The value to test - * @returns {boolean} True if value is a String, otherwise false - */ -function isString(val) { - return typeof val === 'string'; -} - -/** - * Determine if a value is a Number - * - * @param {Object} val The value to test - * @returns {boolean} True if value is a Number, otherwise false - */ -function isNumber(val) { - return typeof val === 'number'; -} - -/** - * Determine if a value is undefined - * - * @param {Object} val The value to test - * @returns {boolean} True if the value is undefined, otherwise false - */ -function isUndefined(val) { - return typeof val === 'undefined'; -} - -/** - * Determine if a value is an Object - * - * @param {Object} val The value to test - * @returns {boolean} True if value is an Object, otherwise false - */ -function isObject(val) { - return val !== null && typeof val === 'object'; -} - -/** - * Determine if a value is a Date - * - * @param {Object} val The value to test - * @returns {boolean} True if value is a Date, otherwise false - */ -function isDate(val) { - return toString.call(val) === '[object Date]'; -} - -/** - * Determine if a value is a File - * - * @param {Object} val The value to test - * @returns {boolean} True if value is a File, otherwise false - */ -function isFile(val) { - return toString.call(val) === '[object File]'; -} - -/** - * Determine if a value is a Blob - * - * @param {Object} val The value to test - * @returns {boolean} True if value is a Blob, otherwise false - */ -function isBlob(val) { - return toString.call(val) === '[object Blob]'; -} - -/** - * Determine if a value is a Function - * - * @param {Object} val The value to test - * @returns {boolean} True if value is a Function, otherwise false - */ -function isFunction(val) { - return toString.call(val) === '[object Function]'; -} - -/** - * Determine if a value is a Stream - * - * @param {Object} val The value to test - * @returns {boolean} True if value is a Stream, otherwise false - */ -function isStream(val) { - return isObject(val) && isFunction(val.pipe); -} - -/** - * Determine if a value is a URLSearchParams object - * - * @param {Object} val The value to test - * @returns {boolean} True if value is a URLSearchParams object, otherwise false - */ -function isURLSearchParams(val) { - return typeof URLSearchParams !== 'undefined' && val instanceof URLSearchParams; -} - -/** - * Trim excess whitespace off the beginning and end of a string - * - * @param {String} str The String to trim - * @returns {String} The String freed of excess whitespace - */ -function trim(str) { - return str.replace(/^\s*/, '').replace(/\s*$/, ''); -} - -/** - * Determine if we're running in a standard browser environment - * - * This allows axios to run in a web worker, and react-native. - * Both environments support XMLHttpRequest, but not fully standard globals. - * - * web workers: - * typeof window -> undefined - * typeof document -> undefined - * - * react-native: - * navigator.product -> 'ReactNative' - */ -function isStandardBrowserEnv() { - if (typeof navigator !== 'undefined' && navigator.product === 'ReactNative') { - return false; - } - return ( - typeof window !== 'undefined' && - typeof document !== 'undefined' - ); -} - -/** - * Iterate over an Array or an Object invoking a function for each item. - * - * If `obj` is an Array callback will be called passing - * the value, index, and complete array for each item. - * - * If 'obj' is an Object callback will be called passing - * the value, key, and complete object for each property. - * - * @param {Object|Array} obj The object to iterate - * @param {Function} fn The callback to invoke for each item - */ -function forEach(obj, fn) { - // Don't bother if no value provided - if (obj === null || typeof obj === 'undefined') { - return; - } - - // Force an array if not already something iterable - if (typeof obj !== 'object') { - /*eslint no-param-reassign:0*/ - obj = [obj]; - } - - if (isArray(obj)) { - // Iterate over array values - for (var i = 0, l = obj.length; i < l; i++) { - fn.call(null, obj[i], i, obj); - } - } else { - // Iterate over object keys - for (var key in obj) { - if (Object.prototype.hasOwnProperty.call(obj, key)) { - fn.call(null, obj[key], key, obj); - } - } - } -} - -/** - * Accepts varargs expecting each argument to be an object, then - * immutably merges the properties of each object and returns result. - * - * When multiple objects contain the same key the later object in - * the arguments list will take precedence. - * - * Example: - * - * ```js - * var result = merge({foo: 123}, {foo: 456}); - * console.log(result.foo); // outputs 456 - * ``` - * - * @param {Object} obj1 Object to merge - * @returns {Object} Result of all merge properties - */ -function merge(/* obj1, obj2, obj3, ... */) { - var result = {}; - function assignValue(val, key) { - if (typeof result[key] === 'object' && typeof val === 'object') { - result[key] = merge(result[key], val); - } else { - result[key] = val; - } - } - - for (var i = 0, l = arguments.length; i < l; i++) { - forEach(arguments[i], assignValue); - } - return result; -} - -/** - * Extends object a by mutably adding to it the properties of object b. - * - * @param {Object} a The object to be extended - * @param {Object} b The object to copy properties from - * @param {Object} thisArg The object to bind function to - * @return {Object} The resulting value of object a - */ -function extend(a, b, thisArg) { - forEach(b, function assignValue(val, key) { - if (thisArg && typeof val === 'function') { - a[key] = bind(val, thisArg); - } else { - a[key] = val; - } - }); - return a; -} - -module.exports = { - isArray: isArray, - isArrayBuffer: isArrayBuffer, - isBuffer: isBuffer, - isFormData: isFormData, - isArrayBufferView: isArrayBufferView, - isString: isString, - isNumber: isNumber, - isObject: isObject, - isUndefined: isUndefined, - isDate: isDate, - isFile: isFile, - isBlob: isBlob, - isFunction: isFunction, - isStream: isStream, - isURLSearchParams: isURLSearchParams, - isStandardBrowserEnv: isStandardBrowserEnv, - forEach: forEach, - merge: merge, - extend: extend, - trim: trim -}; - -},{"./helpers/bind":44,"is-buffer":398}],54:[function(require,module,exports){ -'use strict' -// base-x encoding / decoding -// Copyright (c) 2018 base-x contributors -// Copyright (c) 2014-2018 The Bitcoin Core developers (base58.cpp) -// Distributed under the MIT software license, see the accompanying -// file LICENSE or http://www.opensource.org/licenses/mit-license.php. -// @ts-ignore -var _Buffer = require('safe-buffer').Buffer -function base (ALPHABET) { - if (ALPHABET.length >= 255) { throw new TypeError('Alphabet too long') } - var BASE_MAP = new Uint8Array(256) - BASE_MAP.fill(255) - for (var i = 0; i < ALPHABET.length; i++) { - var x = ALPHABET.charAt(i) - var xc = x.charCodeAt(0) - if (BASE_MAP[xc] !== 255) { throw new TypeError(x + ' is ambiguous') } - BASE_MAP[xc] = i - } - var BASE = ALPHABET.length - var LEADER = ALPHABET.charAt(0) - var FACTOR = Math.log(BASE) / Math.log(256) // log(BASE) / log(256), rounded up - var iFACTOR = Math.log(256) / Math.log(BASE) // log(256) / log(BASE), rounded up - function encode (source) { - if (!_Buffer.isBuffer(source)) { throw new TypeError('Expected Buffer') } - if (source.length === 0) { return '' } - // Skip & count leading zeroes. - var zeroes = 0 - var length = 0 - var pbegin = 0 - var pend = source.length - while (pbegin !== pend && source[pbegin] === 0) { - pbegin++ - zeroes++ - } - // Allocate enough space in big-endian base58 representation. - var size = ((pend - pbegin) * iFACTOR + 1) >>> 0 - var b58 = new Uint8Array(size) - // Process the bytes. - while (pbegin !== pend) { - var carry = source[pbegin] - // Apply "b58 = b58 * 256 + ch". - var i = 0 - for (var it1 = size - 1; (carry !== 0 || i < length) && (it1 !== -1); it1--, i++) { - carry += (256 * b58[it1]) >>> 0 - b58[it1] = (carry % BASE) >>> 0 - carry = (carry / BASE) >>> 0 - } - if (carry !== 0) { throw new Error('Non-zero carry') } - length = i - pbegin++ - } - // Skip leading zeroes in base58 result. - var it2 = size - length - while (it2 !== size && b58[it2] === 0) { - it2++ - } - // Translate the result into a string. - var str = LEADER.repeat(zeroes) - for (; it2 < size; ++it2) { str += ALPHABET.charAt(b58[it2]) } - return str - } - function decodeUnsafe (source) { - if (typeof source !== 'string') { throw new TypeError('Expected String') } - if (source.length === 0) { return _Buffer.alloc(0) } - var psz = 0 - // Skip leading spaces. - if (source[psz] === ' ') { return } - // Skip and count leading '1's. - var zeroes = 0 - var length = 0 - while (source[psz] === LEADER) { - zeroes++ - psz++ - } - // Allocate enough space in big-endian base256 representation. - var size = (((source.length - psz) * FACTOR) + 1) >>> 0 // log(58) / log(256), rounded up. - var b256 = new Uint8Array(size) - // Process the characters. - while (source[psz]) { - // Decode character - var carry = BASE_MAP[source.charCodeAt(psz)] - // Invalid character - if (carry === 255) { return } - var i = 0 - for (var it3 = size - 1; (carry !== 0 || i < length) && (it3 !== -1); it3--, i++) { - carry += (BASE * b256[it3]) >>> 0 - b256[it3] = (carry % 256) >>> 0 - carry = (carry / 256) >>> 0 - } - if (carry !== 0) { throw new Error('Non-zero carry') } - length = i - psz++ - } - // Skip trailing spaces. - if (source[psz] === ' ') { return } - // Skip leading zeroes in b256. - var it4 = size - length - while (it4 !== size && b256[it4] === 0) { - it4++ - } - var vch = _Buffer.allocUnsafe(zeroes + (size - it4)) - vch.fill(0x00, 0, zeroes) - var j = zeroes - while (it4 !== size) { - vch[j++] = b256[it4++] - } - return vch - } - function decode (string) { - var buffer = decodeUnsafe(string) - if (buffer) { return buffer } - throw new Error('Non-base' + BASE + ' character') - } - return { - encode: encode, - decodeUnsafe: decodeUnsafe, - decode: decode - } -} -module.exports = base - -},{"safe-buffer":742}],55:[function(require,module,exports){ -"use strict"; - -/** - * Generate a character map. - * @param {string} alphabet e.g. "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567" - * @param {object} mappings map overrides from key to value - * @method - */ - -var charmap = function (alphabet, mappings) { - mappings || (mappings = {}); - alphabet.split("").forEach(function (c, i) { - if (!(c in mappings)) mappings[c] = i; - }); - return mappings; -} - -/** - * The RFC 4648 base 32 alphabet and character map. - * @see {@link https://tools.ietf.org/html/rfc4648} - */ - -var rfc4648 = { - alphabet: "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567", - charmap: { - 0: 14, - 1: 8 - } -}; - -rfc4648.charmap = charmap(rfc4648.alphabet, rfc4648.charmap); - -/** - * The Crockford base 32 alphabet and character map. - * @see {@link http://www.crockford.com/wrmg/base32.html} - */ - -var crockford = { - alphabet: "0123456789ABCDEFGHJKMNPQRSTVWXYZ", - charmap: { - O: 0, - I: 1, - L: 1 - } -}; - -crockford.charmap = charmap(crockford.alphabet, crockford.charmap); - -/** - * base32hex - * @see {@link https://en.wikipedia.org/wiki/Base32#base32hex} - */ - -var base32hex = { - alphabet: "0123456789ABCDEFGHIJKLMNOPQRSTUV", - charmap: {} -}; - -base32hex.charmap = charmap(base32hex.alphabet, base32hex.charmap); - -/** - * Create a new `Decoder` with the given options. - * - * @param {object} [options] - * @param {string} [type] Supported Base-32 variants are "rfc4648" and - * "crockford". - * @param {object} [charmap] Override the character map used in decoding. - * @constructor - */ - -function Decoder (options) { - this.buf = []; - this.shift = 8; - this.carry = 0; - - if (options) { - - switch (options.type) { - case "rfc4648": - this.charmap = exports.rfc4648.charmap; - break; - case "crockford": - this.charmap = exports.crockford.charmap; - break; - case "base32hex": - this.charmap = exports.base32hex.charmap; - break; - default: - throw new Error("invalid type"); - } - - if (options.charmap) this.charmap = options.charmap; - } -} - -/** - * The default character map coresponds to RFC4648. - */ - -Decoder.prototype.charmap = rfc4648.charmap; - -/** - * Decode a string, continuing from the previous state. - * - * @param {string} str - * @return {Decoder} this - */ - -Decoder.prototype.write = function (str) { - var charmap = this.charmap; - var buf = this.buf; - var shift = this.shift; - var carry = this.carry; - - // decode string - str.toUpperCase().split("").forEach(function (char) { - - // ignore padding - if (char == "=") return; - - // lookup symbol - var symbol = charmap[char] & 0xff; - - // 1: 00000 000 - // 2: 00 00000 0 - // 3: 0000 0000 - // 4: 0 00000 00 - // 5: 000 00000 - // 6: 00000 000 - // 7: 00 00000 0 - - shift -= 5; - if (shift > 0) { - carry |= symbol << shift; - } else if (shift < 0) { - buf.push(carry | (symbol >> -shift)); - shift += 8; - carry = (symbol << shift) & 0xff; - } else { - buf.push(carry | symbol); - shift = 8; - carry = 0; - } - }); - - // save state - this.shift = shift; - this.carry = carry; - - // for chaining - return this; -}; - -/** - * Finish decoding. - * - * @param {string} [str] The final string to decode. - * @return {Array} Decoded byte array. - */ - -Decoder.prototype.finalize = function (str) { - if (str) { - this.write(str); - } - if (this.shift !== 8 && this.carry !== 0) { - this.buf.push(this.carry); - this.shift = 8; - this.carry = 0; - } - return this.buf; -}; - -/** - * Create a new `Encoder` with the given options. - * - * @param {object} [options] - * @param {string} [type] Supported Base-32 variants are "rfc4648" and - * "crockford". - * @param {object} [alphabet] Override the alphabet used in encoding. - * @constructor - */ - -function Encoder (options) { - this.buf = ""; - this.shift = 3; - this.carry = 0; - - if (options) { - - switch (options.type) { - case "rfc4648": - this.alphabet = exports.rfc4648.alphabet; - break; - case "crockford": - this.alphabet = exports.crockford.alphabet; - break; - case "base32hex": - this.alphabet = exports.base32hex.alphabet; - break; - default: - throw new Error("invalid type"); - } - - if (options.alphabet) this.alphabet = options.alphabet; - else if (options.lc) this.alphabet = this.alphabet.toLowerCase(); - } -} - -/** - * The default alphabet coresponds to RFC4648. - */ - -Encoder.prototype.alphabet = rfc4648.alphabet; - -/** - * Encode a byte array, continuing from the previous state. - * - * @param {byte[]} buf The byte array to encode. - * @return {Encoder} this - */ - -Encoder.prototype.write = function (buf) { - var shift = this.shift; - var carry = this.carry; - var symbol; - var byte; - var i; - - // encode each byte in buf - for (i = 0; i < buf.length; i++) { - byte = buf[i]; - - // 1: 00000 000 - // 2: 00 00000 0 - // 3: 0000 0000 - // 4: 0 00000 00 - // 5: 000 00000 - // 6: 00000 000 - // 7: 00 00000 0 - - symbol = carry | (byte >> shift); - this.buf += this.alphabet[symbol & 0x1f]; - - if (shift > 5) { - shift -= 5; - symbol = byte >> shift; - this.buf += this.alphabet[symbol & 0x1f]; - } - - shift = 5 - shift; - carry = byte << shift; - shift = 8 - shift; - } - - // save state - this.shift = shift; - this.carry = carry; - - // for chaining - return this; -}; - -/** - * Finish encoding. - * - * @param {byte[]} [buf] The final byte array to encode. - * @return {string} The encoded byte array. - */ - -Encoder.prototype.finalize = function (buf) { - if (buf) { - this.write(buf); - } - if (this.shift !== 3) { - this.buf += this.alphabet[this.carry & 0x1f]; - this.shift = 3; - this.carry = 0; - } - return this.buf; -}; - -/** - * Convenience encoder. - * - * @param {byte[]} buf The byte array to encode. - * @param {object} [options] Options to pass to the encoder. - * @return {string} The encoded string. - */ - -exports.encode = function (buf, options) { - return new Encoder(options).finalize(buf); -}; - -/** - * Convenience decoder. - * - * @param {string} str The string to decode. - * @param {object} [options] Options to pass to the decoder. - * @return {byte[]} The decoded byte array. - */ - -exports.decode = function (str, options) { - return new Decoder(options).finalize(str); -}; - -// Exports. -exports.Decoder = Decoder; -exports.Encoder = Encoder; -exports.charmap = charmap; -exports.crockford = crockford; -exports.rfc4648 = rfc4648; -exports.base32hex = base32hex; - -},{}],56:[function(require,module,exports){ -'use strict' - -exports.byteLength = byteLength -exports.toByteArray = toByteArray -exports.fromByteArray = fromByteArray - -var lookup = [] -var revLookup = [] -var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array - -var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' -for (var i = 0, len = code.length; i < len; ++i) { - lookup[i] = code[i] - revLookup[code.charCodeAt(i)] = i -} - -// Support decoding URL-safe base64 strings, as Node.js does. -// See: https://en.wikipedia.org/wiki/Base64#URL_applications -revLookup['-'.charCodeAt(0)] = 62 -revLookup['_'.charCodeAt(0)] = 63 - -function getLens (b64) { - var len = b64.length - - if (len % 4 > 0) { - throw new Error('Invalid string. Length must be a multiple of 4') - } - - // Trim off extra bytes after placeholder bytes are found - // See: https://github.com/beatgammit/base64-js/issues/42 - var validLen = b64.indexOf('=') - if (validLen === -1) validLen = len - - var placeHoldersLen = validLen === len - ? 0 - : 4 - (validLen % 4) - - return [validLen, placeHoldersLen] -} - -// base64 is 4/3 + up to two characters of the original data -function byteLength (b64) { - var lens = getLens(b64) - var validLen = lens[0] - var placeHoldersLen = lens[1] - return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen -} - -function _byteLength (b64, validLen, placeHoldersLen) { - return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen -} - -function toByteArray (b64) { - var tmp - var lens = getLens(b64) - var validLen = lens[0] - var placeHoldersLen = lens[1] - - var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen)) - - var curByte = 0 - - // if there are placeholders, only get up to the last complete 4 chars - var len = placeHoldersLen > 0 - ? validLen - 4 - : validLen - - var i - for (i = 0; i < len; i += 4) { - tmp = - (revLookup[b64.charCodeAt(i)] << 18) | - (revLookup[b64.charCodeAt(i + 1)] << 12) | - (revLookup[b64.charCodeAt(i + 2)] << 6) | - revLookup[b64.charCodeAt(i + 3)] - arr[curByte++] = (tmp >> 16) & 0xFF - arr[curByte++] = (tmp >> 8) & 0xFF - arr[curByte++] = tmp & 0xFF - } - - if (placeHoldersLen === 2) { - tmp = - (revLookup[b64.charCodeAt(i)] << 2) | - (revLookup[b64.charCodeAt(i + 1)] >> 4) - arr[curByte++] = tmp & 0xFF - } - - if (placeHoldersLen === 1) { - tmp = - (revLookup[b64.charCodeAt(i)] << 10) | - (revLookup[b64.charCodeAt(i + 1)] << 4) | - (revLookup[b64.charCodeAt(i + 2)] >> 2) - arr[curByte++] = (tmp >> 8) & 0xFF - arr[curByte++] = tmp & 0xFF - } - - return arr -} - -function tripletToBase64 (num) { - return lookup[num >> 18 & 0x3F] + - lookup[num >> 12 & 0x3F] + - lookup[num >> 6 & 0x3F] + - lookup[num & 0x3F] -} - -function encodeChunk (uint8, start, end) { - var tmp - var output = [] - for (var i = start; i < end; i += 3) { - tmp = - ((uint8[i] << 16) & 0xFF0000) + - ((uint8[i + 1] << 8) & 0xFF00) + - (uint8[i + 2] & 0xFF) - output.push(tripletToBase64(tmp)) - } - return output.join('') -} - -function fromByteArray (uint8) { - var tmp - var len = uint8.length - var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes - var parts = [] - var maxChunkLength = 16383 // must be multiple of 3 - - // go through the array every three bytes, we'll deal with trailing stuff later - for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) { - parts.push(encodeChunk( - uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength) - )) - } - - // pad the end with zeros, but make sure to not forget the extra bytes - if (extraBytes === 1) { - tmp = uint8[len - 1] - parts.push( - lookup[tmp >> 2] + - lookup[(tmp << 4) & 0x3F] + - '==' - ) - } else if (extraBytes === 2) { - tmp = (uint8[len - 2] << 8) + uint8[len - 1] - parts.push( - lookup[tmp >> 10] + - lookup[(tmp >> 4) & 0x3F] + - lookup[(tmp << 2) & 0x3F] + - '=' - ) - } - - return parts.join('') -} - -},{}],57:[function(require,module,exports){ -(function (Buffer){ -/*** - * @license - * https://github.com/bitcoincashjs/bchaddr - * Copyright (c) 2018 Emilio Almansi - * Distributed under the MIT software license, see the accompanying - * file LICENSE or http://www.opensource.org/licenses/mit-license.php. - */ - -var bs58check = require('bs58check') -var cashaddr = require('cashaddrjs-slp') - -/** - * General purpose Bitcoin Cash address detection and translation.
- * Supports all major Bitcoin Cash address formats.
- * Currently: - *
    - *
  • Legacy format
    • - *
  • Bitpay format
    • - *
  • Cashaddr format
    • - *
- * @module bchaddr - */ - -/** - * @static - * Supported Bitcoin Cash address formats. - */ -var Format = {} -Format.Legacy = 'legacy' -Format.Bitpay = 'bitpay' -Format.Cashaddr = 'cashaddr' -Format.Slpaddr = 'slpaddr' - -/** - * @static - * Supported networks. - */ -var Network = {} -Network.Mainnet = 'mainnet' -Network.Testnet = 'testnet' - -/** - * @static - * Supported address types. - */ -var Type = {} -Type.P2PKH = 'p2pkh' -Type.P2SH = 'p2sh' - -/** - * Detects what is the given address' format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function detectAddressFormat (address) { - return decodeAddress(address).format -} - -/** - * Detects what is the given address' network. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function detectAddressNetwork (address) { - return decodeAddress(address).network -} - -/** - * Detects what is the given address' type. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function detectAddressType (address) { - return decodeAddress(address).type -} - -/** - * Translates the given address into legacy format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function toLegacyAddress (address) { - var decoded = decodeAddress(address) - if (decoded.format === Format.Legacy) { - return address - } - return encodeAsLegacy(decoded) -} - -/** - * Translates the given address into bitpay format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function toBitpayAddress (address) { - var decoded = decodeAddress(address) - if (decoded.format === Format.Bitpay) { - return address - } - return encodeAsBitpay(decoded) -} - -/** - * Translates the given address into cashaddr format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function toCashAddress (address) { - var decoded = decodeAddress(address) - return encodeAsCashaddr(decoded) -} - -/** - * Translates the given address into cashaddr format. - * @static - * @param {string} address - A valid address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function toSlpAddress (address) { - var decoded = decodeAddress(address) - return encodeAsSlpaddr(decoded) -} - -/** - * Translates the given address into regtest format. - * @static - * @param {string} address - A valid address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function toRegtestAddress (address) { - var decoded = decodeAddress(address) - return encodeAsRegtestaddr(decoded) -} - -/** - * Translates the given address into regtest format. - * @static - * @param {string} address - A valid address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function toSlpRegtestAddress (address) { - var decoded = decodeAddress(address) - return encodeAsSlpRegtestaddr(decoded) -} - -/** - * Version byte table for base58 formats. - * @private - */ -var VERSION_BYTE = {} -VERSION_BYTE[Format.Legacy] = {} -VERSION_BYTE[Format.Legacy][Network.Mainnet] = {} -VERSION_BYTE[Format.Legacy][Network.Mainnet][Type.P2PKH] = 0 -VERSION_BYTE[Format.Legacy][Network.Mainnet][Type.P2SH] = 5 -VERSION_BYTE[Format.Legacy][Network.Testnet] = {} -VERSION_BYTE[Format.Legacy][Network.Testnet][Type.P2PKH] = 111 -VERSION_BYTE[Format.Legacy][Network.Testnet][Type.P2SH] = 196 -VERSION_BYTE[Format.Bitpay] = {} -VERSION_BYTE[Format.Bitpay][Network.Mainnet] = {} -VERSION_BYTE[Format.Bitpay][Network.Mainnet][Type.P2PKH] = 28 -VERSION_BYTE[Format.Bitpay][Network.Mainnet][Type.P2SH] = 40 -VERSION_BYTE[Format.Bitpay][Network.Testnet] = {} -VERSION_BYTE[Format.Bitpay][Network.Testnet][Type.P2PKH] = 111 -VERSION_BYTE[Format.Bitpay][Network.Testnet][Type.P2SH] = 196 - -/** - * Decodes the given address into its constituting hash, format, network and type. - * @private - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {object} - * @throws {InvalidAddressError} - */ -function decodeAddress (address) { - try { - return decodeBase58Address(address) - } catch (error) { - } - try { - return decodeCashAddress(address) - } catch (error) { - } - try { - return decodeSlpAddress(address) - } catch (error) { - } - throw new InvalidAddressError() -} - -/** - * Length of a valid base58check encoding payload: 1 byte for - * the version byte plus 20 bytes for a RIPEMD-160 hash. - * @private - */ -var BASE_58_CHECK_PAYLOAD_LENGTH = 21 - -/** - * Attempts to decode the given address assuming it is a base58 address. - * @private - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {object} - * @throws {InvalidAddressError} - */ -function decodeBase58Address (address) { - try { - var payload = bs58check.decode(address) - if (payload.length !== BASE_58_CHECK_PAYLOAD_LENGTH) { - throw new InvalidAddressError() - } - var versionByte = payload[0] - var hash = Array.prototype.slice.call(payload, 1) - switch (versionByte) { - case VERSION_BYTE[Format.Legacy][Network.Mainnet][Type.P2PKH]: - return { - hash: hash, - format: Format.Legacy, - network: Network.Mainnet, - type: Type.P2PKH - } - case VERSION_BYTE[Format.Legacy][Network.Mainnet][Type.P2SH]: - return { - hash: hash, - format: Format.Legacy, - network: Network.Mainnet, - type: Type.P2SH - } - case VERSION_BYTE[Format.Legacy][Network.Testnet][Type.P2PKH]: - return { - hash: hash, - format: Format.Legacy, - network: Network.Testnet, - type: Type.P2PKH - } - case VERSION_BYTE[Format.Legacy][Network.Testnet][Type.P2SH]: - return { - hash: hash, - format: Format.Legacy, - network: Network.Testnet, - type: Type.P2SH - } - case VERSION_BYTE[Format.Bitpay][Network.Mainnet][Type.P2PKH]: - return { - hash: hash, - format: Format.Bitpay, - network: Network.Mainnet, - type: Type.P2PKH - } - case VERSION_BYTE[Format.Bitpay][Network.Mainnet][Type.P2SH]: - return { - hash: hash, - format: Format.Bitpay, - network: Network.Mainnet, - type: Type.P2SH - } - } - } catch (error) { - } - throw new InvalidAddressError() -} - -/** - * Attempts to decode the given address assuming it is a cashaddr address. - * @private - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {object} - * @throws {InvalidAddressError} - */ -function decodeCashAddress (address) { - if (address.indexOf(':') !== -1) { - try { - return decodeCashAddressWithPrefix(address) - } catch (error) { - } - } else { - var prefixes = ['bitcoincash', 'bchtest', 'regtest', 'bchreg'] - for (var i = 0; i < prefixes.length; ++i) { - try { - var prefix = prefixes[i] - return decodeCashAddressWithPrefix(prefix + ':' + address) - } catch (error) { - } - } - } - throw new InvalidAddressError() -} - -/** - * Attempts to decode the given address assuming it is a cashaddr address with explicit prefix. - * @private - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {object} - * @throws {InvalidAddressError} - */ -function decodeCashAddressWithPrefix (address) { - try { - var decoded = cashaddr.decode(address) - var hash = Array.prototype.slice.call(decoded.hash, 0) - var type = decoded.type === 'P2PKH' ? Type.P2PKH : Type.P2SH - switch (decoded.prefix) { - case 'bitcoincash': - return { - hash: hash, - format: Format.Cashaddr, - network: Network.Mainnet, - type: type - } - case 'bchtest': - case 'regtest': - case 'bchreg': - return { - hash: hash, - format: Format.Cashaddr, - network: Network.Testnet, - type: type - } - } - } catch (error) { - } - throw new InvalidAddressError() -} - -/** - * Attempts to decode the given address assuming it is a slpaddr address. - * @private - * @param {string} address - A valid SLP address in any format. - * @return {object} - * @throws {InvalidAddressError} - */ -function decodeSlpAddress (address) { - if (address.indexOf(':') !== -1) { - try { - return decodeSlpAddressWithPrefix(address) - } catch (error) { - } - } else { - var prefixes = ['simpleledger', 'slptest', 'slpreg'] - for (var i = 0; i < prefixes.length; ++i) { - try { - var prefix = prefixes[i] - return decodeSlpAddressWithPrefix(prefix + ':' + address) - } catch (error) { - } - } - } - throw new InvalidAddressError() -} - -/** - * Attempts to decode the given address assuming it is a slpaddr address with explicit prefix. - * @private - * @param {string} address - A valid SLP address in any format. - * @return {object} - * @throws {InvalidAddressError} - */ -function decodeSlpAddressWithPrefix (address) { - try { - var decoded = cashaddr.decode(address) - var hash = Array.prototype.slice.call(decoded.hash, 0) - var type = decoded.type === 'P2PKH' ? Type.P2PKH : Type.P2SH - switch (decoded.prefix) { - case 'simpleledger': - return { - hash: hash, - format: Format.Slpaddr, - network: Network.Mainnet, - type: type - } - case 'slptest': - case 'slpreg': - return { - hash: hash, - format: Format.Slpaddr, - network: Network.Testnet, - type: type - } - } - } catch (error) { - } - throw new InvalidAddressError() -} - -/** - * Encodes the given decoded address into legacy format. - * @private - * @param {object} decoded - * @returns {string} - */ -function encodeAsLegacy (decoded) { - var versionByte = VERSION_BYTE[Format.Legacy][decoded.network][decoded.type] - var buffer = Buffer.alloc(1 + decoded.hash.length) - buffer[0] = versionByte - buffer.set(decoded.hash, 1) - return bs58check.encode(buffer) -} - -/** - * Encodes the given decoded address into bitpay format. - * @private - * @param {object} decoded - * @returns {string} - */ -function encodeAsBitpay (decoded) { - var versionByte = VERSION_BYTE[Format.Bitpay][decoded.network][decoded.type] - var buffer = Buffer.alloc(1 + decoded.hash.length) - buffer[0] = versionByte - buffer.set(decoded.hash, 1) - return bs58check.encode(buffer) -} - -/** - * Encodes the given decoded address into cashaddr format. - * @private - * @param {object} decoded - * @returns {string} - */ -function encodeAsCashaddr (decoded) { - var prefix = decoded.network === Network.Mainnet ? 'bitcoincash' : 'bchtest' - var type = decoded.type === Type.P2PKH ? 'P2PKH' : 'P2SH' - var hash = Uint8Array.from(decoded.hash) - return cashaddr.encode(prefix, type, hash) -} - -/** - * Encodes the given decoded address into slpaddr format. - * @private - * @param {object} decoded - * @returns {string} - */ -function encodeAsSlpaddr (decoded) { - var prefix = decoded.network === Network.Mainnet ? 'simpleledger' : 'slptest' - var type = decoded.type === Type.P2PKH ? 'P2PKH' : 'P2SH' - var hash = Uint8Array.from(decoded.hash) - return cashaddr.encode(prefix, type, hash) -} - -/** - * Encodes the given decoded address into regtest format. - * @private - * @param {object} decoded - * @returns {string} - */ -function encodeAsRegtestaddr (decoded) { - var prefix = 'bchreg' - var type = decoded.type === Type.P2PKH ? 'P2PKH' : 'P2SH' - var hash = Uint8Array.from(decoded.hash) - return cashaddr.encode(prefix, type, hash) -} - -/** - * Encodes the given decoded address into regtest format. - * @private - * @param {object} decoded - * @returns {string} - */ -function encodeAsSlpRegtestaddr (decoded) { - var prefix = 'slpreg' - var type = decoded.type === Type.P2PKH ? 'P2PKH' : 'P2SH' - var hash = Uint8Array.from(decoded.hash) - return cashaddr.encode(prefix, type, hash) -} - -/** - * Returns a boolean indicating whether the address is in legacy format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isLegacyAddress (address) { - return detectAddressFormat(address) === Format.Legacy -} - -/** - * Returns a boolean indicating whether the address is in bitpay format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isBitpayAddress (address) { - return detectAddressFormat(address) === Format.Bitpay -} - -/** - * Returns a boolean indicating whether the address is in cashaddr format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isCashAddress (address) { - return detectAddressFormat(address) === Format.Cashaddr -} - -/** - * Returns a boolean indicating whether the address is in cashaddr format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isSlpAddress (address) { - return detectAddressFormat(address) === Format.Slpaddr -} - -/** - * Returns a boolean indicating whether the address is a mainnet address. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isMainnetAddress (address) { - return detectAddressNetwork(address) === Network.Mainnet -} - -/** - * Returns a boolean indicating whether the address is a testnet address. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isTestnetAddress (address) { - return detectAddressNetwork(address) === Network.Testnet -} - -/** - * Returns a boolean indicating whether the address is a p2pkh address. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isP2PKHAddress (address) { - return detectAddressType(address) === Type.P2PKH -} - -/** - * Returns a boolean indicating whether the address is a p2sh address. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isP2SHAddress (address) { - return detectAddressType(address) === Type.P2SH -} - -/** - * Error thrown when the address given as input is not a valid Bitcoin Cash address. - * @constructor - * InvalidAddressError - */ -function InvalidAddressError () { - var error = new Error() - this.name = error.name = 'InvalidAddressError' - this.message = error.message = 'Received an invalid Bitcoin Cash address as input.' - this.stack = error.stack -} - -InvalidAddressError.prototype = Object.create(Error.prototype) - -module.exports = { - Format: Format, - Network: Network, - Type: Type, - detectAddressFormat: detectAddressFormat, - detectAddressNetwork: detectAddressNetwork, - detectAddressType: detectAddressType, - decodeAddress: decodeAddress, - toLegacyAddress: toLegacyAddress, - toBitpayAddress: toBitpayAddress, - encodeAsCashaddr: encodeAsCashaddr, - toCashAddress: toCashAddress, - encodeAsSlpaddr: encodeAsSlpaddr, - toSlpAddress: toSlpAddress, - encodeAsRegtestaddr: encodeAsRegtestaddr, - toRegtestAddress: toRegtestAddress, - encodeAsSlpRegtestaddr: encodeAsSlpRegtestaddr, - toSlpRegtestAddress: toSlpRegtestAddress, - encodeAsLegacy: encodeAsLegacy, - isLegacyAddress: isLegacyAddress, - encodeAsBitpay: encodeAsBitpay, - isBitpayAddress: isBitpayAddress, - isCashAddress: isCashAddress, - isSlpAddress: isSlpAddress, - isMainnetAddress: isMainnetAddress, - isTestnetAddress: isTestnetAddress, - isP2PKHAddress: isP2PKHAddress, - isP2SHAddress: isP2SHAddress, - InvalidAddressError: InvalidAddressError -} - -}).call(this,require("buffer").Buffer) -},{"bs58check":140,"buffer":146,"cashaddrjs-slp":148}],58:[function(require,module,exports){ -(function (Buffer){ -/*** - * @license - * https://github.com/bitcoincashjs/bchaddr - * Copyright (c) 2018-2019 Emilio Almansi - * Distributed under the MIT software license, see the accompanying - * file LICENSE or http://www.opensource.org/licenses/mit-license.php. - */ - -var bs58check = require('bs58check') -var cashaddr = require('cashaddrjs') - -/** - * General purpose Bitcoin Cash address detection and translation.
- * Supports all major Bitcoin Cash address formats.
- * Currently: - *
    - *
  • Legacy format
    • - *
  • Bitpay format
    • - *
  • Cashaddr format
    • - *
- * @module bchaddr - */ - -/** - * @static - * Supported Bitcoin Cash address formats. - */ -var Format = {} -Format.Legacy = 'legacy' -Format.Bitpay = 'bitpay' -Format.Cashaddr = 'cashaddr' - -/** - * @static - * Supported networks. - */ -var Network = {} -Network.Mainnet = 'mainnet' -Network.Testnet = 'testnet' - -/** - * @static - * Supported address types. - */ -var Type = {} -Type.P2PKH = 'p2pkh' -Type.P2SH = 'p2sh' - -/** - * Returns a boolean indicating whether the given input is a valid Bitcoin Cash address. - * @static - * @param {*} input - Any input to check for validity. - * @returns {boolean} - */ -function isValidAddress (input) { - try { - decodeAddress(input) - return true - } catch (error) { - return false - } -} - -/** - * Detects what is the given address' format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function detectAddressFormat (address) { - return decodeAddress(address).format -} - -/** - * Detects what is the given address' network. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function detectAddressNetwork (address) { - return decodeAddress(address).network -} - -/** - * Detects what is the given address' type. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function detectAddressType (address) { - return decodeAddress(address).type -} - -/** - * Translates the given address into legacy format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function toLegacyAddress (address) { - var decoded = decodeAddress(address) - if (decoded.format === Format.Legacy) { - return address - } - return encodeAsLegacy(decoded) -} - -/** - * Translates the given address into bitpay format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function toBitpayAddress (address) { - var decoded = decodeAddress(address) - if (decoded.format === Format.Bitpay) { - return address - } - return encodeAsBitpay(decoded) -} - -/** - * Translates the given address into cashaddr format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {string} - * @throws {InvalidAddressError} - */ -function toCashAddress (address) { - var decoded = decodeAddress(address) - return encodeAsCashaddr(decoded) -} - -/** - * Version byte table for base58 formats. - * @private - */ -var VERSION_BYTE = {} -VERSION_BYTE[Format.Legacy] = {} -VERSION_BYTE[Format.Legacy][Network.Mainnet] = {} -VERSION_BYTE[Format.Legacy][Network.Mainnet][Type.P2PKH] = 0 -VERSION_BYTE[Format.Legacy][Network.Mainnet][Type.P2SH] = 5 -VERSION_BYTE[Format.Legacy][Network.Testnet] = {} -VERSION_BYTE[Format.Legacy][Network.Testnet][Type.P2PKH] = 111 -VERSION_BYTE[Format.Legacy][Network.Testnet][Type.P2SH] = 196 -VERSION_BYTE[Format.Bitpay] = {} -VERSION_BYTE[Format.Bitpay][Network.Mainnet] = {} -VERSION_BYTE[Format.Bitpay][Network.Mainnet][Type.P2PKH] = 28 -VERSION_BYTE[Format.Bitpay][Network.Mainnet][Type.P2SH] = 40 -VERSION_BYTE[Format.Bitpay][Network.Testnet] = {} -VERSION_BYTE[Format.Bitpay][Network.Testnet][Type.P2PKH] = 111 -VERSION_BYTE[Format.Bitpay][Network.Testnet][Type.P2SH] = 196 - -/** - * Decodes the given address into its constituting hash, format, network and type. - * @private - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {object} - * @throws {InvalidAddressError} - */ -function decodeAddress (address) { - try { - return decodeBase58Address(address) - } catch (error) { - } - try { - return decodeCashAddress(address) - } catch (error) { - } - throw new InvalidAddressError() -} - -/** - * Length of a valid base58check encoding payload: 1 byte for - * the version byte plus 20 bytes for a RIPEMD-160 hash. - * @private - */ -var BASE_58_CHECK_PAYLOAD_LENGTH = 21 - -/** - * Attempts to decode the given address assuming it is a base58 address. - * @private - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {object} - * @throws {InvalidAddressError} - */ -function decodeBase58Address (address) { - try { - var payload = bs58check.decode(address) - if (payload.length !== BASE_58_CHECK_PAYLOAD_LENGTH) { - throw new InvalidAddressError() - } - var versionByte = payload[0] - var hash = Array.prototype.slice.call(payload, 1) - switch (versionByte) { - case VERSION_BYTE[Format.Legacy][Network.Mainnet][Type.P2PKH]: - return { - hash: hash, - format: Format.Legacy, - network: Network.Mainnet, - type: Type.P2PKH - } - case VERSION_BYTE[Format.Legacy][Network.Mainnet][Type.P2SH]: - return { - hash: hash, - format: Format.Legacy, - network: Network.Mainnet, - type: Type.P2SH - } - case VERSION_BYTE[Format.Legacy][Network.Testnet][Type.P2PKH]: - return { - hash: hash, - format: Format.Legacy, - network: Network.Testnet, - type: Type.P2PKH - } - case VERSION_BYTE[Format.Legacy][Network.Testnet][Type.P2SH]: - return { - hash: hash, - format: Format.Legacy, - network: Network.Testnet, - type: Type.P2SH - } - case VERSION_BYTE[Format.Bitpay][Network.Mainnet][Type.P2PKH]: - return { - hash: hash, - format: Format.Bitpay, - network: Network.Mainnet, - type: Type.P2PKH - } - case VERSION_BYTE[Format.Bitpay][Network.Mainnet][Type.P2SH]: - return { - hash: hash, - format: Format.Bitpay, - network: Network.Mainnet, - type: Type.P2SH - } - } - } catch (error) { - } - throw new InvalidAddressError() -} - -/** - * Attempts to decode the given address assuming it is a cashaddr address. - * @private - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {object} - * @throws {InvalidAddressError} - */ -function decodeCashAddress (address) { - if (address.indexOf(':') !== -1) { - try { - return decodeCashAddressWithPrefix(address) - } catch (error) { - } - } else { - var prefixes = ['bitcoincash', 'bchtest', 'bchreg'] - for (var i = 0; i < prefixes.length; ++i) { - try { - var prefix = prefixes[i] - return decodeCashAddressWithPrefix(prefix + ':' + address) - } catch (error) { - } - } - } - throw new InvalidAddressError() -} - -/** - * Attempts to decode the given address assuming it is a cashaddr address with explicit prefix. - * @private - * @param {string} address - A valid Bitcoin Cash address in any format. - * @return {object} - * @throws {InvalidAddressError} - */ -function decodeCashAddressWithPrefix (address) { - try { - var decoded = cashaddr.decode(address) - var hash = Array.prototype.slice.call(decoded.hash, 0) - var type = decoded.type === 'P2PKH' ? Type.P2PKH : Type.P2SH - switch (decoded.prefix) { - case 'bitcoincash': - return { - hash: hash, - format: Format.Cashaddr, - network: Network.Mainnet, - type: type - } - case 'bchtest': - case 'bchreg': - return { - hash: hash, - format: Format.Cashaddr, - network: Network.Testnet, - type: type - } - } - } catch (error) { - } - throw new InvalidAddressError() -} - -/** - * Encodes the given decoded address into legacy format. - * @private - * @param {object} decoded - * @returns {string} - */ -function encodeAsLegacy (decoded) { - var versionByte = VERSION_BYTE[Format.Legacy][decoded.network][decoded.type] - var buffer = Buffer.alloc(1 + decoded.hash.length) - buffer[0] = versionByte - buffer.set(decoded.hash, 1) - return bs58check.encode(buffer) -} - -/** - * Encodes the given decoded address into bitpay format. - * @private - * @param {object} decoded - * @returns {string} - */ -function encodeAsBitpay (decoded) { - var versionByte = VERSION_BYTE[Format.Bitpay][decoded.network][decoded.type] - var buffer = Buffer.alloc(1 + decoded.hash.length) - buffer[0] = versionByte - buffer.set(decoded.hash, 1) - return bs58check.encode(buffer) -} - -/** - * Encodes the given decoded address into cashaddr format. - * @private - * @param {object} decoded - * @returns {string} - */ -function encodeAsCashaddr (decoded) { - var prefix = decoded.network === Network.Mainnet ? 'bitcoincash' : 'bchtest' - var type = decoded.type === Type.P2PKH ? 'P2PKH' : 'P2SH' - var hash = new Uint8Array(decoded.hash) - return cashaddr.encode(prefix, type, hash) -} - -/** - * Returns a boolean indicating whether the address is in legacy format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isLegacyAddress (address) { - return detectAddressFormat(address) === Format.Legacy -} - -/** - * Returns a boolean indicating whether the address is in bitpay format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isBitpayAddress (address) { - return detectAddressFormat(address) === Format.Bitpay -} - -/** - * Returns a boolean indicating whether the address is in cashaddr format. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isCashAddress (address) { - return detectAddressFormat(address) === Format.Cashaddr -} - -/** - * Returns a boolean indicating whether the address is a mainnet address. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isMainnetAddress (address) { - return detectAddressNetwork(address) === Network.Mainnet -} - -/** - * Returns a boolean indicating whether the address is a testnet address. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isTestnetAddress (address) { - return detectAddressNetwork(address) === Network.Testnet -} - -/** - * Returns a boolean indicating whether the address is a p2pkh address. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isP2PKHAddress (address) { - return detectAddressType(address) === Type.P2PKH -} - -/** - * Returns a boolean indicating whether the address is a p2sh address. - * @static - * @param {string} address - A valid Bitcoin Cash address in any format. - * @returns {boolean} - * @throws {InvalidAddressError} - */ -function isP2SHAddress (address) { - return detectAddressType(address) === Type.P2SH -} - -/** - * Error thrown when the address given as input is not a valid Bitcoin Cash address. - * @constructor - * InvalidAddressError - */ -function InvalidAddressError () { - var error = new Error() - this.name = error.name = 'InvalidAddressError' - this.message = error.message = 'Received an invalid Bitcoin Cash address as input.' - this.stack = error.stack -} - -InvalidAddressError.prototype = Object.create(Error.prototype) - -module.exports = { - Format: Format, - Network: Network, - Type: Type, - isValidAddress: isValidAddress, - detectAddressFormat: detectAddressFormat, - detectAddressNetwork: detectAddressNetwork, - detectAddressType: detectAddressType, - toLegacyAddress: toLegacyAddress, - toBitpayAddress: toBitpayAddress, - toCashAddress: toCashAddress, - isLegacyAddress: isLegacyAddress, - isBitpayAddress: isBitpayAddress, - isCashAddress: isCashAddress, - isMainnetAddress: isMainnetAddress, - isTestnetAddress: isTestnetAddress, - isP2PKHAddress: isP2PKHAddress, - isP2SHAddress: isP2SHAddress, - InvalidAddressError: InvalidAddressError -} - -}).call(this,require("buffer").Buffer) -},{"bs58check":140,"buffer":146,"cashaddrjs":152}],59:[function(require,module,exports){ -'use strict' -var ALPHABET = 'qpzry9x8gf2tvdw0s3jn54khce6mua7l' - -// pre-compute lookup table -var ALPHABET_MAP = {} -for (var z = 0; z < ALPHABET.length; z++) { - var x = ALPHABET.charAt(z) - - if (ALPHABET_MAP[x] !== undefined) throw new TypeError(x + ' is ambiguous') - ALPHABET_MAP[x] = z -} - -function polymodStep (pre) { - var b = pre >> 25 - return ((pre & 0x1FFFFFF) << 5) ^ - (-((b >> 0) & 1) & 0x3b6a57b2) ^ - (-((b >> 1) & 1) & 0x26508e6d) ^ - (-((b >> 2) & 1) & 0x1ea119fa) ^ - (-((b >> 3) & 1) & 0x3d4233dd) ^ - (-((b >> 4) & 1) & 0x2a1462b3) -} - -function prefixChk (prefix) { - var chk = 1 - for (var i = 0; i < prefix.length; ++i) { - var c = prefix.charCodeAt(i) - if (c < 33 || c > 126) throw new Error('Invalid prefix (' + prefix + ')') - - chk = polymodStep(chk) ^ (c >> 5) - } - chk = polymodStep(chk) - - for (i = 0; i < prefix.length; ++i) { - var v = prefix.charCodeAt(i) - chk = polymodStep(chk) ^ (v & 0x1f) - } - return chk -} - -function encode (prefix, words, LIMIT) { - LIMIT = LIMIT || 90 - if ((prefix.length + 7 + words.length) > LIMIT) throw new TypeError('Exceeds length limit') - - prefix = prefix.toLowerCase() - - // determine chk mod - var chk = prefixChk(prefix) - var result = prefix + '1' - for (var i = 0; i < words.length; ++i) { - var x = words[i] - if ((x >> 5) !== 0) throw new Error('Non 5-bit word') - - chk = polymodStep(chk) ^ x - result += ALPHABET.charAt(x) - } - - for (i = 0; i < 6; ++i) { - chk = polymodStep(chk) - } - chk ^= 1 - - for (i = 0; i < 6; ++i) { - var v = (chk >> ((5 - i) * 5)) & 0x1f - result += ALPHABET.charAt(v) - } - - return result -} - -function decode (str, LIMIT) { - LIMIT = LIMIT || 90 - if (str.length < 8) throw new TypeError(str + ' too short') - if (str.length > LIMIT) throw new TypeError('Exceeds length limit') - - // don't allow mixed case - var lowered = str.toLowerCase() - var uppered = str.toUpperCase() - if (str !== lowered && str !== uppered) throw new Error('Mixed-case string ' + str) - str = lowered - - var split = str.lastIndexOf('1') - if (split === -1) throw new Error('No separator character for ' + str) - if (split === 0) throw new Error('Missing prefix for ' + str) - - var prefix = str.slice(0, split) - var wordChars = str.slice(split + 1) - if (wordChars.length < 6) throw new Error('Data too short') - - var chk = prefixChk(prefix) - var words = [] - for (var i = 0; i < wordChars.length; ++i) { - var c = wordChars.charAt(i) - var v = ALPHABET_MAP[c] - if (v === undefined) throw new Error('Unknown character ' + c) - chk = polymodStep(chk) ^ v - - // not in the checksum? - if (i + 6 >= wordChars.length) continue - words.push(v) - } - - if (chk !== 1) throw new Error('Invalid checksum for ' + str) - return { prefix: prefix, words: words } -} - -function convert (data, inBits, outBits, pad) { - var value = 0 - var bits = 0 - var maxV = (1 << outBits) - 1 - - var result = [] - for (var i = 0; i < data.length; ++i) { - value = (value << inBits) | data[i] - bits += inBits - - while (bits >= outBits) { - bits -= outBits - result.push((value >> bits) & maxV) - } - } - - if (pad) { - if (bits > 0) { - result.push((value << (outBits - bits)) & maxV) - } - } else { - if (bits >= inBits) throw new Error('Excess padding') - if ((value << (outBits - bits)) & maxV) throw new Error('Non-zero padding') - } - - return result -} - -function toWords (bytes) { - return convert(bytes, 8, 5, true) -} - -function fromWords (words) { - return convert(words, 5, 8, false) -} - -module.exports = { - decode: decode, - encode: encode, - toWords: toWords, - fromWords: fromWords -} - -},{}],60:[function(require,module,exports){ -var bigInt = (function (undefined) { - "use strict"; - - var BASE = 1e7, - LOG_BASE = 7, - MAX_INT = 9007199254740992, - MAX_INT_ARR = smallToArray(MAX_INT), - LOG_MAX_INT = Math.log(MAX_INT); - - function Integer(v, radix) { - if (typeof v === "undefined") return Integer[0]; - if (typeof radix !== "undefined") return +radix === 10 ? parseValue(v) : parseBase(v, radix); - return parseValue(v); - } - - function BigInteger(value, sign) { - this.value = value; - this.sign = sign; - this.isSmall = false; - } - BigInteger.prototype = Object.create(Integer.prototype); - - function SmallInteger(value) { - this.value = value; - this.sign = value < 0; - this.isSmall = true; - } - SmallInteger.prototype = Object.create(Integer.prototype); - - function isPrecise(n) { - return -MAX_INT < n && n < MAX_INT; - } - - function smallToArray(n) { // For performance reasons doesn't reference BASE, need to change this function if BASE changes - if (n < 1e7) - return [n]; - if (n < 1e14) - return [n % 1e7, Math.floor(n / 1e7)]; - return [n % 1e7, Math.floor(n / 1e7) % 1e7, Math.floor(n / 1e14)]; - } - - function arrayToSmall(arr) { // If BASE changes this function may need to change - trim(arr); - var length = arr.length; - if (length < 4 && compareAbs(arr, MAX_INT_ARR) < 0) { - switch (length) { - case 0: return 0; - case 1: return arr[0]; - case 2: return arr[0] + arr[1] * BASE; - default: return arr[0] + (arr[1] + arr[2] * BASE) * BASE; - } - } - return arr; - } - - function trim(v) { - var i = v.length; - while (v[--i] === 0); - v.length = i + 1; - } - - function createArray(length) { // function shamelessly stolen from Yaffle's library https://github.com/Yaffle/BigInteger - var x = new Array(length); - var i = -1; - while (++i < length) { - x[i] = 0; - } - return x; - } - - function truncate(n) { - if (n > 0) return Math.floor(n); - return Math.ceil(n); - } - - function add(a, b) { // assumes a and b are arrays with a.length >= b.length - var l_a = a.length, - l_b = b.length, - r = new Array(l_a), - carry = 0, - base = BASE, - sum, i; - for (i = 0; i < l_b; i++) { - sum = a[i] + b[i] + carry; - carry = sum >= base ? 1 : 0; - r[i] = sum - carry * base; - } - while (i < l_a) { - sum = a[i] + carry; - carry = sum === base ? 1 : 0; - r[i++] = sum - carry * base; - } - if (carry > 0) r.push(carry); - return r; - } - - function addAny(a, b) { - if (a.length >= b.length) return add(a, b); - return add(b, a); - } - - function addSmall(a, carry) { // assumes a is array, carry is number with 0 <= carry < MAX_INT - var l = a.length, - r = new Array(l), - base = BASE, - sum, i; - for (i = 0; i < l; i++) { - sum = a[i] - base + carry; - carry = Math.floor(sum / base); - r[i] = sum - carry * base; - carry += 1; - } - while (carry > 0) { - r[i++] = carry % base; - carry = Math.floor(carry / base); - } - return r; - } - - BigInteger.prototype.add = function (v) { - var n = parseValue(v); - if (this.sign !== n.sign) { - return this.subtract(n.negate()); - } - var a = this.value, b = n.value; - if (n.isSmall) { - return new BigInteger(addSmall(a, Math.abs(b)), this.sign); - } - return new BigInteger(addAny(a, b), this.sign); - }; - BigInteger.prototype.plus = BigInteger.prototype.add; - - SmallInteger.prototype.add = function (v) { - var n = parseValue(v); - var a = this.value; - if (a < 0 !== n.sign) { - return this.subtract(n.negate()); - } - var b = n.value; - if (n.isSmall) { - if (isPrecise(a + b)) return new SmallInteger(a + b); - b = smallToArray(Math.abs(b)); - } - return new BigInteger(addSmall(b, Math.abs(a)), a < 0); - }; - SmallInteger.prototype.plus = SmallInteger.prototype.add; - - function subtract(a, b) { // assumes a and b are arrays with a >= b - var a_l = a.length, - b_l = b.length, - r = new Array(a_l), - borrow = 0, - base = BASE, - i, difference; - for (i = 0; i < b_l; i++) { - difference = a[i] - borrow - b[i]; - if (difference < 0) { - difference += base; - borrow = 1; - } else borrow = 0; - r[i] = difference; - } - for (i = b_l; i < a_l; i++) { - difference = a[i] - borrow; - if (difference < 0) difference += base; - else { - r[i++] = difference; - break; - } - r[i] = difference; - } - for (; i < a_l; i++) { - r[i] = a[i]; - } - trim(r); - return r; - } - - function subtractAny(a, b, sign) { - var value; - if (compareAbs(a, b) >= 0) { - value = subtract(a, b); - } else { - value = subtract(b, a); - sign = !sign; - } - value = arrayToSmall(value); - if (typeof value === "number") { - if (sign) value = -value; - return new SmallInteger(value); - } - return new BigInteger(value, sign); - } - - function subtractSmall(a, b, sign) { // assumes a is array, b is number with 0 <= b < MAX_INT - var l = a.length, - r = new Array(l), - carry = -b, - base = BASE, - i, difference; - for (i = 0; i < l; i++) { - difference = a[i] + carry; - carry = Math.floor(difference / base); - difference %= base; - r[i] = difference < 0 ? difference + base : difference; - } - r = arrayToSmall(r); - if (typeof r === "number") { - if (sign) r = -r; - return new SmallInteger(r); - } return new BigInteger(r, sign); - } - - BigInteger.prototype.subtract = function (v) { - var n = parseValue(v); - if (this.sign !== n.sign) { - return this.add(n.negate()); - } - var a = this.value, b = n.value; - if (n.isSmall) - return subtractSmall(a, Math.abs(b), this.sign); - return subtractAny(a, b, this.sign); - }; - BigInteger.prototype.minus = BigInteger.prototype.subtract; - - SmallInteger.prototype.subtract = function (v) { - var n = parseValue(v); - var a = this.value; - if (a < 0 !== n.sign) { - return this.add(n.negate()); - } - var b = n.value; - if (n.isSmall) { - return new SmallInteger(a - b); - } - return subtractSmall(b, Math.abs(a), a >= 0); - }; - SmallInteger.prototype.minus = SmallInteger.prototype.subtract; - - BigInteger.prototype.negate = function () { - return new BigInteger(this.value, !this.sign); - }; - SmallInteger.prototype.negate = function () { - var sign = this.sign; - var small = new SmallInteger(-this.value); - small.sign = !sign; - return small; - }; - - BigInteger.prototype.abs = function () { - return new BigInteger(this.value, false); - }; - SmallInteger.prototype.abs = function () { - return new SmallInteger(Math.abs(this.value)); - }; - - function multiplyLong(a, b) { - var a_l = a.length, - b_l = b.length, - l = a_l + b_l, - r = createArray(l), - base = BASE, - product, carry, i, a_i, b_j; - for (i = 0; i < a_l; ++i) { - a_i = a[i]; - for (var j = 0; j < b_l; ++j) { - b_j = b[j]; - product = a_i * b_j + r[i + j]; - carry = Math.floor(product / base); - r[i + j] = product - carry * base; - r[i + j + 1] += carry; - } - } - trim(r); - return r; - } - - function multiplySmall(a, b) { // assumes a is array, b is number with |b| < BASE - var l = a.length, - r = new Array(l), - base = BASE, - carry = 0, - product, i; - for (i = 0; i < l; i++) { - product = a[i] * b + carry; - carry = Math.floor(product / base); - r[i] = product - carry * base; - } - while (carry > 0) { - r[i++] = carry % base; - carry = Math.floor(carry / base); - } - return r; - } - - function shiftLeft(x, n) { - var r = []; - while (n-- > 0) r.push(0); - return r.concat(x); - } - - function multiplyKaratsuba(x, y) { - var n = Math.max(x.length, y.length); - - if (n <= 30) return multiplyLong(x, y); - n = Math.ceil(n / 2); - - var b = x.slice(n), - a = x.slice(0, n), - d = y.slice(n), - c = y.slice(0, n); - - var ac = multiplyKaratsuba(a, c), - bd = multiplyKaratsuba(b, d), - abcd = multiplyKaratsuba(addAny(a, b), addAny(c, d)); - - var product = addAny(addAny(ac, shiftLeft(subtract(subtract(abcd, ac), bd), n)), shiftLeft(bd, 2 * n)); - trim(product); - return product; - } - - // The following function is derived from a surface fit of a graph plotting the performance difference - // between long multiplication and karatsuba multiplication versus the lengths of the two arrays. - function useKaratsuba(l1, l2) { - return -0.012 * l1 - 0.012 * l2 + 0.000015 * l1 * l2 > 0; - } - - BigInteger.prototype.multiply = function (v) { - var n = parseValue(v), - a = this.value, b = n.value, - sign = this.sign !== n.sign, - abs; - if (n.isSmall) { - if (b === 0) return Integer[0]; - if (b === 1) return this; - if (b === -1) return this.negate(); - abs = Math.abs(b); - if (abs < BASE) { - return new BigInteger(multiplySmall(a, abs), sign); - } - b = smallToArray(abs); - } - if (useKaratsuba(a.length, b.length)) // Karatsuba is only faster for certain array sizes - return new BigInteger(multiplyKaratsuba(a, b), sign); - return new BigInteger(multiplyLong(a, b), sign); - }; - - BigInteger.prototype.times = BigInteger.prototype.multiply; - - function multiplySmallAndArray(a, b, sign) { // a >= 0 - if (a < BASE) { - return new BigInteger(multiplySmall(b, a), sign); - } - return new BigInteger(multiplyLong(b, smallToArray(a)), sign); - } - SmallInteger.prototype._multiplyBySmall = function (a) { - if (isPrecise(a.value * this.value)) { - return new SmallInteger(a.value * this.value); - } - return multiplySmallAndArray(Math.abs(a.value), smallToArray(Math.abs(this.value)), this.sign !== a.sign); - }; - BigInteger.prototype._multiplyBySmall = function (a) { - if (a.value === 0) return Integer[0]; - if (a.value === 1) return this; - if (a.value === -1) return this.negate(); - return multiplySmallAndArray(Math.abs(a.value), this.value, this.sign !== a.sign); - }; - SmallInteger.prototype.multiply = function (v) { - return parseValue(v)._multiplyBySmall(this); - }; - SmallInteger.prototype.times = SmallInteger.prototype.multiply; - - function square(a) { - //console.assert(2 * BASE * BASE < MAX_INT); - var l = a.length, - r = createArray(l + l), - base = BASE, - product, carry, i, a_i, a_j; - for (i = 0; i < l; i++) { - a_i = a[i]; - carry = 0 - a_i * a_i; - for (var j = i; j < l; j++) { - a_j = a[j]; - product = 2 * (a_i * a_j) + r[i + j] + carry; - carry = Math.floor(product / base); - r[i + j] = product - carry * base; - } - r[i + l] = carry; - } - trim(r); - return r; - } - - BigInteger.prototype.square = function () { - return new BigInteger(square(this.value), false); - }; - - SmallInteger.prototype.square = function () { - var value = this.value * this.value; - if (isPrecise(value)) return new SmallInteger(value); - return new BigInteger(square(smallToArray(Math.abs(this.value))), false); - }; - - function divMod1(a, b) { // Left over from previous version. Performs faster than divMod2 on smaller input sizes. - var a_l = a.length, - b_l = b.length, - base = BASE, - result = createArray(b.length), - divisorMostSignificantDigit = b[b_l - 1], - // normalization - lambda = Math.ceil(base / (2 * divisorMostSignificantDigit)), - remainder = multiplySmall(a, lambda), - divisor = multiplySmall(b, lambda), - quotientDigit, shift, carry, borrow, i, l, q; - if (remainder.length <= a_l) remainder.push(0); - divisor.push(0); - divisorMostSignificantDigit = divisor[b_l - 1]; - for (shift = a_l - b_l; shift >= 0; shift--) { - quotientDigit = base - 1; - if (remainder[shift + b_l] !== divisorMostSignificantDigit) { - quotientDigit = Math.floor((remainder[shift + b_l] * base + remainder[shift + b_l - 1]) / divisorMostSignificantDigit); - } - // quotientDigit <= base - 1 - carry = 0; - borrow = 0; - l = divisor.length; - for (i = 0; i < l; i++) { - carry += quotientDigit * divisor[i]; - q = Math.floor(carry / base); - borrow += remainder[shift + i] - (carry - q * base); - carry = q; - if (borrow < 0) { - remainder[shift + i] = borrow + base; - borrow = -1; - } else { - remainder[shift + i] = borrow; - borrow = 0; - } - } - while (borrow !== 0) { - quotientDigit -= 1; - carry = 0; - for (i = 0; i < l; i++) { - carry += remainder[shift + i] - base + divisor[i]; - if (carry < 0) { - remainder[shift + i] = carry + base; - carry = 0; - } else { - remainder[shift + i] = carry; - carry = 1; - } - } - borrow += carry; - } - result[shift] = quotientDigit; - } - // denormalization - remainder = divModSmall(remainder, lambda)[0]; - return [arrayToSmall(result), arrayToSmall(remainder)]; - } - - function divMod2(a, b) { // Implementation idea shamelessly stolen from Silent Matt's library http://silentmatt.com/biginteger/ - // Performs faster than divMod1 on larger input sizes. - var a_l = a.length, - b_l = b.length, - result = [], - part = [], - base = BASE, - guess, xlen, highx, highy, check; - while (a_l) { - part.unshift(a[--a_l]); - trim(part); - if (compareAbs(part, b) < 0) { - result.push(0); - continue; - } - xlen = part.length; - highx = part[xlen - 1] * base + part[xlen - 2]; - highy = b[b_l - 1] * base + b[b_l - 2]; - if (xlen > b_l) { - highx = (highx + 1) * base; - } - guess = Math.ceil(highx / highy); - do { - check = multiplySmall(b, guess); - if (compareAbs(check, part) <= 0) break; - guess--; - } while (guess); - result.push(guess); - part = subtract(part, check); - } - result.reverse(); - return [arrayToSmall(result), arrayToSmall(part)]; - } - - function divModSmall(value, lambda) { - var length = value.length, - quotient = createArray(length), - base = BASE, - i, q, remainder, divisor; - remainder = 0; - for (i = length - 1; i >= 0; --i) { - divisor = remainder * base + value[i]; - q = truncate(divisor / lambda); - remainder = divisor - q * lambda; - quotient[i] = q | 0; - } - return [quotient, remainder | 0]; - } - - function divModAny(self, v) { - var value, n = parseValue(v); - var a = self.value, b = n.value; - var quotient; - if (b === 0) throw new Error("Cannot divide by zero"); - if (self.isSmall) { - if (n.isSmall) { - return [new SmallInteger(truncate(a / b)), new SmallInteger(a % b)]; - } - return [Integer[0], self]; - } - if (n.isSmall) { - if (b === 1) return [self, Integer[0]]; - if (b == -1) return [self.negate(), Integer[0]]; - var abs = Math.abs(b); - if (abs < BASE) { - value = divModSmall(a, abs); - quotient = arrayToSmall(value[0]); - var remainder = value[1]; - if (self.sign) remainder = -remainder; - if (typeof quotient === "number") { - if (self.sign !== n.sign) quotient = -quotient; - return [new SmallInteger(quotient), new SmallInteger(remainder)]; - } - return [new BigInteger(quotient, self.sign !== n.sign), new SmallInteger(remainder)]; - } - b = smallToArray(abs); - } - var comparison = compareAbs(a, b); - if (comparison === -1) return [Integer[0], self]; - if (comparison === 0) return [Integer[self.sign === n.sign ? 1 : -1], Integer[0]]; - - // divMod1 is faster on smaller input sizes - if (a.length + b.length <= 200) - value = divMod1(a, b); - else value = divMod2(a, b); - - quotient = value[0]; - var qSign = self.sign !== n.sign, - mod = value[1], - mSign = self.sign; - if (typeof quotient === "number") { - if (qSign) quotient = -quotient; - quotient = new SmallInteger(quotient); - } else quotient = new BigInteger(quotient, qSign); - if (typeof mod === "number") { - if (mSign) mod = -mod; - mod = new SmallInteger(mod); - } else mod = new BigInteger(mod, mSign); - return [quotient, mod]; - } - - BigInteger.prototype.divmod = function (v) { - var result = divModAny(this, v); - return { - quotient: result[0], - remainder: result[1] - }; - }; - SmallInteger.prototype.divmod = BigInteger.prototype.divmod; - - BigInteger.prototype.divide = function (v) { - return divModAny(this, v)[0]; - }; - SmallInteger.prototype.over = SmallInteger.prototype.divide = BigInteger.prototype.over = BigInteger.prototype.divide; - - BigInteger.prototype.mod = function (v) { - return divModAny(this, v)[1]; - }; - SmallInteger.prototype.remainder = SmallInteger.prototype.mod = BigInteger.prototype.remainder = BigInteger.prototype.mod; - - BigInteger.prototype.pow = function (v) { - var n = parseValue(v), - a = this.value, - b = n.value, - value, x, y; - if (b === 0) return Integer[1]; - if (a === 0) return Integer[0]; - if (a === 1) return Integer[1]; - if (a === -1) return n.isEven() ? Integer[1] : Integer[-1]; - if (n.sign) { - return Integer[0]; - } - if (!n.isSmall) throw new Error("The exponent " + n.toString() + " is too large."); - if (this.isSmall) { - if (isPrecise(value = Math.pow(a, b))) - return new SmallInteger(truncate(value)); - } - x = this; - y = Integer[1]; - while (true) { - if (b & 1 === 1) { - y = y.times(x); - --b; - } - if (b === 0) break; - b /= 2; - x = x.square(); - } - return y; - }; - SmallInteger.prototype.pow = BigInteger.prototype.pow; - - BigInteger.prototype.modPow = function (exp, mod) { - exp = parseValue(exp); - mod = parseValue(mod); - if (mod.isZero()) throw new Error("Cannot take modPow with modulus 0"); - var r = Integer[1], - base = this.mod(mod); - while (exp.isPositive()) { - if (base.isZero()) return Integer[0]; - if (exp.isOdd()) r = r.multiply(base).mod(mod); - exp = exp.divide(2); - base = base.square().mod(mod); - } - return r; - }; - SmallInteger.prototype.modPow = BigInteger.prototype.modPow; - - function compareAbs(a, b) { - if (a.length !== b.length) { - return a.length > b.length ? 1 : -1; - } - for (var i = a.length - 1; i >= 0; i--) { - if (a[i] !== b[i]) return a[i] > b[i] ? 1 : -1; - } - return 0; - } - - BigInteger.prototype.compareAbs = function (v) { - var n = parseValue(v), - a = this.value, - b = n.value; - if (n.isSmall) return 1; - return compareAbs(a, b); - }; - SmallInteger.prototype.compareAbs = function (v) { - var n = parseValue(v), - a = Math.abs(this.value), - b = n.value; - if (n.isSmall) { - b = Math.abs(b); - return a === b ? 0 : a > b ? 1 : -1; - } - return -1; - }; - - BigInteger.prototype.compare = function (v) { - // See discussion about comparison with Infinity: - // https://github.com/peterolson/BigInteger.js/issues/61 - if (v === Infinity) { - return -1; - } - if (v === -Infinity) { - return 1; - } - - var n = parseValue(v), - a = this.value, - b = n.value; - if (this.sign !== n.sign) { - return n.sign ? 1 : -1; - } - if (n.isSmall) { - return this.sign ? -1 : 1; - } - return compareAbs(a, b) * (this.sign ? -1 : 1); - }; - BigInteger.prototype.compareTo = BigInteger.prototype.compare; - - SmallInteger.prototype.compare = function (v) { - if (v === Infinity) { - return -1; - } - if (v === -Infinity) { - return 1; - } - - var n = parseValue(v), - a = this.value, - b = n.value; - if (n.isSmall) { - return a == b ? 0 : a > b ? 1 : -1; - } - if (a < 0 !== n.sign) { - return a < 0 ? -1 : 1; - } - return a < 0 ? 1 : -1; - }; - SmallInteger.prototype.compareTo = SmallInteger.prototype.compare; - - BigInteger.prototype.equals = function (v) { - return this.compare(v) === 0; - }; - SmallInteger.prototype.eq = SmallInteger.prototype.equals = BigInteger.prototype.eq = BigInteger.prototype.equals; - - BigInteger.prototype.notEquals = function (v) { - return this.compare(v) !== 0; - }; - SmallInteger.prototype.neq = SmallInteger.prototype.notEquals = BigInteger.prototype.neq = BigInteger.prototype.notEquals; - - BigInteger.prototype.greater = function (v) { - return this.compare(v) > 0; - }; - SmallInteger.prototype.gt = SmallInteger.prototype.greater = BigInteger.prototype.gt = BigInteger.prototype.greater; - - BigInteger.prototype.lesser = function (v) { - return this.compare(v) < 0; - }; - SmallInteger.prototype.lt = SmallInteger.prototype.lesser = BigInteger.prototype.lt = BigInteger.prototype.lesser; - - BigInteger.prototype.greaterOrEquals = function (v) { - return this.compare(v) >= 0; - }; - SmallInteger.prototype.geq = SmallInteger.prototype.greaterOrEquals = BigInteger.prototype.geq = BigInteger.prototype.greaterOrEquals; - - BigInteger.prototype.lesserOrEquals = function (v) { - return this.compare(v) <= 0; - }; - SmallInteger.prototype.leq = SmallInteger.prototype.lesserOrEquals = BigInteger.prototype.leq = BigInteger.prototype.lesserOrEquals; - - BigInteger.prototype.isEven = function () { - return (this.value[0] & 1) === 0; - }; - SmallInteger.prototype.isEven = function () { - return (this.value & 1) === 0; - }; - - BigInteger.prototype.isOdd = function () { - return (this.value[0] & 1) === 1; - }; - SmallInteger.prototype.isOdd = function () { - return (this.value & 1) === 1; - }; - - BigInteger.prototype.isPositive = function () { - return !this.sign; - }; - SmallInteger.prototype.isPositive = function () { - return this.value > 0; - }; - - BigInteger.prototype.isNegative = function () { - return this.sign; - }; - SmallInteger.prototype.isNegative = function () { - return this.value < 0; - }; - - BigInteger.prototype.isUnit = function () { - return false; - }; - SmallInteger.prototype.isUnit = function () { - return Math.abs(this.value) === 1; - }; - - BigInteger.prototype.isZero = function () { - return false; - }; - SmallInteger.prototype.isZero = function () { - return this.value === 0; - }; - BigInteger.prototype.isDivisibleBy = function (v) { - var n = parseValue(v); - var value = n.value; - if (value === 0) return false; - if (value === 1) return true; - if (value === 2) return this.isEven(); - return this.mod(n).equals(Integer[0]); - }; - SmallInteger.prototype.isDivisibleBy = BigInteger.prototype.isDivisibleBy; - - function isBasicPrime(v) { - var n = v.abs(); - if (n.isUnit()) return false; - if (n.equals(2) || n.equals(3) || n.equals(5)) return true; - if (n.isEven() || n.isDivisibleBy(3) || n.isDivisibleBy(5)) return false; - if (n.lesser(49)) return true; - // we don't know if it's prime: let the other functions figure it out - } - - function millerRabinTest(n, a) { - var nPrev = n.prev(), - b = nPrev, - r = 0, - d, t, i, x; - while (b.isEven()) b = b.divide(2), r++; - next : for (i = 0; i < a.length; i++) { - if (n.lesser(a[i])) continue; - x = bigInt(a[i]).modPow(b, n); - if (x.equals(Integer[1]) || x.equals(nPrev)) continue; - for (d = r - 1; d != 0; d--) { - x = x.square().mod(n); - if (x.isUnit()) return false; - if (x.equals(nPrev)) continue next; - } - return false; - } - return true; - } - -// Set "strict" to true to force GRH-supported lower bound of 2*log(N)^2 - BigInteger.prototype.isPrime = function (strict) { - var isPrime = isBasicPrime(this); - if (isPrime !== undefined) return isPrime; - var n = this.abs(); - var bits = n.bitLength(); - if(bits <= 64) - return millerRabinTest(n, [2, 325, 9375, 28178, 450775, 9780504, 1795265022]); - var logN = Math.log(2) * bits; - var t = Math.ceil((strict === true) ? (2 * Math.pow(logN, 2)) : logN); - for (var a = [], i = 0; i < t; i++) { - a.push(bigInt(i + 2)); - } - return millerRabinTest(n, a); - }; - SmallInteger.prototype.isPrime = BigInteger.prototype.isPrime; - - BigInteger.prototype.isProbablePrime = function (iterations) { - var isPrime = isBasicPrime(this); - if (isPrime !== undefined) return isPrime; - var n = this.abs(); - var t = iterations === undefined ? 5 : iterations; - for (var a = [], i = 0; i < t; i++) { - a.push(bigInt.randBetween(2, n.minus(2))); - } - return millerRabinTest(n, a); - }; - SmallInteger.prototype.isProbablePrime = BigInteger.prototype.isProbablePrime; - - BigInteger.prototype.modInv = function (n) { - var t = bigInt.zero, newT = bigInt.one, r = parseValue(n), newR = this.abs(), q, lastT, lastR; - while (!newR.equals(bigInt.zero)) { - q = r.divide(newR); - lastT = t; - lastR = r; - t = newT; - r = newR; - newT = lastT.subtract(q.multiply(newT)); - newR = lastR.subtract(q.multiply(newR)); - } - if (!r.equals(1)) throw new Error(this.toString() + " and " + n.toString() + " are not co-prime"); - if (t.compare(0) === -1) { - t = t.add(n); - } - if (this.isNegative()) { - return t.negate(); - } - return t; - }; - - SmallInteger.prototype.modInv = BigInteger.prototype.modInv; - - BigInteger.prototype.next = function () { - var value = this.value; - if (this.sign) { - return subtractSmall(value, 1, this.sign); - } - return new BigInteger(addSmall(value, 1), this.sign); - }; - SmallInteger.prototype.next = function () { - var value = this.value; - if (value + 1 < MAX_INT) return new SmallInteger(value + 1); - return new BigInteger(MAX_INT_ARR, false); - }; - - BigInteger.prototype.prev = function () { - var value = this.value; - if (this.sign) { - return new BigInteger(addSmall(value, 1), true); - } - return subtractSmall(value, 1, this.sign); - }; - SmallInteger.prototype.prev = function () { - var value = this.value; - if (value - 1 > -MAX_INT) return new SmallInteger(value - 1); - return new BigInteger(MAX_INT_ARR, true); - }; - - var powersOfTwo = [1]; - while (2 * powersOfTwo[powersOfTwo.length - 1] <= BASE) powersOfTwo.push(2 * powersOfTwo[powersOfTwo.length - 1]); - var powers2Length = powersOfTwo.length, highestPower2 = powersOfTwo[powers2Length - 1]; - - function shift_isSmall(n) { - return ((typeof n === "number" || typeof n === "string") && +Math.abs(n) <= BASE) || - (n instanceof BigInteger && n.value.length <= 1); - } - - BigInteger.prototype.shiftLeft = function (n) { - if (!shift_isSmall(n)) { - throw new Error(String(n) + " is too large for shifting."); - } - n = +n; - if (n < 0) return this.shiftRight(-n); - var result = this; - if (result.isZero()) return result; - while (n >= powers2Length) { - result = result.multiply(highestPower2); - n -= powers2Length - 1; - } - return result.multiply(powersOfTwo[n]); - }; - SmallInteger.prototype.shiftLeft = BigInteger.prototype.shiftLeft; - - BigInteger.prototype.shiftRight = function (n) { - var remQuo; - if (!shift_isSmall(n)) { - throw new Error(String(n) + " is too large for shifting."); - } - n = +n; - if (n < 0) return this.shiftLeft(-n); - var result = this; - while (n >= powers2Length) { - if (result.isZero() || (result.isNegative() && result.isUnit())) return result; - remQuo = divModAny(result, highestPower2); - result = remQuo[1].isNegative() ? remQuo[0].prev() : remQuo[0]; - n -= powers2Length - 1; - } - remQuo = divModAny(result, powersOfTwo[n]); - return remQuo[1].isNegative() ? remQuo[0].prev() : remQuo[0]; - }; - SmallInteger.prototype.shiftRight = BigInteger.prototype.shiftRight; - - function bitwise(x, y, fn) { - y = parseValue(y); - var xSign = x.isNegative(), ySign = y.isNegative(); - var xRem = xSign ? x.not() : x, - yRem = ySign ? y.not() : y; - var xDigit = 0, yDigit = 0; - var xDivMod = null, yDivMod = null; - var result = []; - while (!xRem.isZero() || !yRem.isZero()) { - xDivMod = divModAny(xRem, highestPower2); - xDigit = xDivMod[1].toJSNumber(); - if (xSign) { - xDigit = highestPower2 - 1 - xDigit; // two's complement for negative numbers - } - - yDivMod = divModAny(yRem, highestPower2); - yDigit = yDivMod[1].toJSNumber(); - if (ySign) { - yDigit = highestPower2 - 1 - yDigit; // two's complement for negative numbers - } - - xRem = xDivMod[0]; - yRem = yDivMod[0]; - result.push(fn(xDigit, yDigit)); - } - var sum = fn(xSign ? 1 : 0, ySign ? 1 : 0) !== 0 ? bigInt(-1) : bigInt(0); - for (var i = result.length - 1; i >= 0; i -= 1) { - sum = sum.multiply(highestPower2).add(bigInt(result[i])); - } - return sum; - } - - BigInteger.prototype.not = function () { - return this.negate().prev(); - }; - SmallInteger.prototype.not = BigInteger.prototype.not; - - BigInteger.prototype.and = function (n) { - return bitwise(this, n, function (a, b) { return a & b; }); - }; - SmallInteger.prototype.and = BigInteger.prototype.and; - - BigInteger.prototype.or = function (n) { - return bitwise(this, n, function (a, b) { return a | b; }); - }; - SmallInteger.prototype.or = BigInteger.prototype.or; - - BigInteger.prototype.xor = function (n) { - return bitwise(this, n, function (a, b) { return a ^ b; }); - }; - SmallInteger.prototype.xor = BigInteger.prototype.xor; - - var LOBMASK_I = 1 << 30, LOBMASK_BI = (BASE & -BASE) * (BASE & -BASE) | LOBMASK_I; - function roughLOB(n) { // get lowestOneBit (rough) - // SmallInteger: return Min(lowestOneBit(n), 1 << 30) - // BigInteger: return Min(lowestOneBit(n), 1 << 14) [BASE=1e7] - var v = n.value, x = typeof v === "number" ? v | LOBMASK_I : v[0] + v[1] * BASE | LOBMASK_BI; - return x & -x; - } - - function integerLogarithm(value, base) { - if (base.compareTo(value) <= 0) { - var tmp = integerLogarithm(value, base.square(base)); - var p = tmp.p; - var e = tmp.e; - var t = p.multiply(base); - return t.compareTo(value) <= 0 ? { p: t, e: e * 2 + 1 } : { p: p, e: e * 2 }; - } - return { p: bigInt(1), e: 0 }; - } - - BigInteger.prototype.bitLength = function () { - var n = this; - if (n.compareTo(bigInt(0)) < 0) { - n = n.negate().subtract(bigInt(1)); - } - if (n.compareTo(bigInt(0)) === 0) { - return bigInt(0); - } - return bigInt(integerLogarithm(n, bigInt(2)).e).add(bigInt(1)); - } - SmallInteger.prototype.bitLength = BigInteger.prototype.bitLength; - - function max(a, b) { - a = parseValue(a); - b = parseValue(b); - return a.greater(b) ? a : b; - } - function min(a, b) { - a = parseValue(a); - b = parseValue(b); - return a.lesser(b) ? a : b; - } - function gcd(a, b) { - a = parseValue(a).abs(); - b = parseValue(b).abs(); - if (a.equals(b)) return a; - if (a.isZero()) return b; - if (b.isZero()) return a; - var c = Integer[1], d, t; - while (a.isEven() && b.isEven()) { - d = Math.min(roughLOB(a), roughLOB(b)); - a = a.divide(d); - b = b.divide(d); - c = c.multiply(d); - } - while (a.isEven()) { - a = a.divide(roughLOB(a)); - } - do { - while (b.isEven()) { - b = b.divide(roughLOB(b)); - } - if (a.greater(b)) { - t = b; b = a; a = t; - } - b = b.subtract(a); - } while (!b.isZero()); - return c.isUnit() ? a : a.multiply(c); - } - function lcm(a, b) { - a = parseValue(a).abs(); - b = parseValue(b).abs(); - return a.divide(gcd(a, b)).multiply(b); - } - function randBetween(a, b) { - a = parseValue(a); - b = parseValue(b); - var low = min(a, b), high = max(a, b); - var range = high.subtract(low).add(1); - if (range.isSmall) return low.add(Math.floor(Math.random() * range)); - var length = range.value.length - 1; - var result = [], restricted = true; - for (var i = length; i >= 0; i--) { - var top = restricted ? range.value[i] : BASE; - var digit = truncate(Math.random() * top); - result.unshift(digit); - if (digit < top) restricted = false; - } - result = arrayToSmall(result); - return low.add(typeof result === "number" ? new SmallInteger(result) : new BigInteger(result, false)); - } - var parseBase = function (text, base) { - var length = text.length; - var i; - var absBase = Math.abs(base); - for (var i = 0; i < length; i++) { - var c = text[i].toLowerCase(); - if (c === "-") continue; - if (/[a-z0-9]/.test(c)) { - if (/[0-9]/.test(c) && +c >= absBase) { - if (c === "1" && absBase === 1) continue; - throw new Error(c + " is not a valid digit in base " + base + "."); - } else if (c.charCodeAt(0) - 87 >= absBase) { - throw new Error(c + " is not a valid digit in base " + base + "."); - } - } - } - if (2 <= base && base <= 36) { - if (length <= LOG_MAX_INT / Math.log(base)) { - var result = parseInt(text, base); - if (isNaN(result)) { - throw new Error(c + " is not a valid digit in base " + base + "."); - } - return new SmallInteger(parseInt(text, base)); - } - } - base = parseValue(base); - var digits = []; - var isNegative = text[0] === "-"; - for (i = isNegative ? 1 : 0; i < text.length; i++) { - var c = text[i].toLowerCase(), - charCode = c.charCodeAt(0); - if (48 <= charCode && charCode <= 57) digits.push(parseValue(c)); - else if (97 <= charCode && charCode <= 122) digits.push(parseValue(c.charCodeAt(0) - 87)); - else if (c === "<") { - var start = i; - do { i++; } while (text[i] !== ">"); - digits.push(parseValue(text.slice(start + 1, i))); - } - else throw new Error(c + " is not a valid character"); - } - return parseBaseFromArray(digits, base, isNegative); - }; - - function parseBaseFromArray(digits, base, isNegative) { - var val = Integer[0], pow = Integer[1], i; - for (i = digits.length - 1; i >= 0; i--) { - val = val.add(digits[i].times(pow)); - pow = pow.times(base); - } - return isNegative ? val.negate() : val; - } - - function stringify(digit) { - if (digit <= 35) { - return "0123456789abcdefghijklmnopqrstuvwxyz".charAt(digit); - } - return "<" + digit + ">"; - } - - function toBase(n, base) { - base = bigInt(base); - if (base.isZero()) { - if (n.isZero()) return { value: [0], isNegative: false }; - throw new Error("Cannot convert nonzero numbers to base 0."); - } - if (base.equals(-1)) { - if (n.isZero()) return { value: [0], isNegative: false }; - if (n.isNegative()) - return { - value: [].concat.apply([], Array.apply(null, Array(-n)) - .map(Array.prototype.valueOf, [1, 0]) - ), - isNegative: false - }; - - var arr = Array.apply(null, Array(+n - 1)) - .map(Array.prototype.valueOf, [0, 1]); - arr.unshift([1]); - return { - value: [].concat.apply([], arr), - isNegative: false - }; - } - - var neg = false; - if (n.isNegative() && base.isPositive()) { - neg = true; - n = n.abs(); - } - if (base.equals(1)) { - if (n.isZero()) return { value: [0], isNegative: false }; - - return { - value: Array.apply(null, Array(+n)) - .map(Number.prototype.valueOf, 1), - isNegative: neg - }; - } - var out = []; - var left = n, divmod; - while (left.isNegative() || left.compareAbs(base) >= 0) { - divmod = left.divmod(base); - left = divmod.quotient; - var digit = divmod.remainder; - if (digit.isNegative()) { - digit = base.minus(digit).abs(); - left = left.next(); - } - out.push(digit.toJSNumber()); - } - out.push(left.toJSNumber()); - return { value: out.reverse(), isNegative: neg }; - } - - function toBaseString(n, base) { - var arr = toBase(n, base); - return (arr.isNegative ? "-" : "") + arr.value.map(stringify).join(''); - } - - BigInteger.prototype.toArray = function (radix) { - return toBase(this, radix); - }; - - SmallInteger.prototype.toArray = function (radix) { - return toBase(this, radix); - }; - - BigInteger.prototype.toString = function (radix) { - if (radix === undefined) radix = 10; - if (radix !== 10) return toBaseString(this, radix); - var v = this.value, l = v.length, str = String(v[--l]), zeros = "0000000", digit; - while (--l >= 0) { - digit = String(v[l]); - str += zeros.slice(digit.length) + digit; - } - var sign = this.sign ? "-" : ""; - return sign + str; - }; - - SmallInteger.prototype.toString = function (radix) { - if (radix === undefined) radix = 10; - if (radix != 10) return toBaseString(this, radix); - return String(this.value); - }; - BigInteger.prototype.toJSON = SmallInteger.prototype.toJSON = function () { return this.toString(); } - - BigInteger.prototype.valueOf = function () { - return parseInt(this.toString(), 10); - }; - BigInteger.prototype.toJSNumber = BigInteger.prototype.valueOf; - - SmallInteger.prototype.valueOf = function () { - return this.value; - }; - SmallInteger.prototype.toJSNumber = SmallInteger.prototype.valueOf; - - function parseStringValue(v) { - if (isPrecise(+v)) { - var x = +v; - if (x === truncate(x)) - return new SmallInteger(x); - throw new Error("Invalid integer: " + v); - } - var sign = v[0] === "-"; - if (sign) v = v.slice(1); - var split = v.split(/e/i); - if (split.length > 2) throw new Error("Invalid integer: " + split.join("e")); - if (split.length === 2) { - var exp = split[1]; - if (exp[0] === "+") exp = exp.slice(1); - exp = +exp; - if (exp !== truncate(exp) || !isPrecise(exp)) throw new Error("Invalid integer: " + exp + " is not a valid exponent."); - var text = split[0]; - var decimalPlace = text.indexOf("."); - if (decimalPlace >= 0) { - exp -= text.length - decimalPlace - 1; - text = text.slice(0, decimalPlace) + text.slice(decimalPlace + 1); - } - if (exp < 0) throw new Error("Cannot include negative exponent part for integers"); - text += (new Array(exp + 1)).join("0"); - v = text; - } - var isValid = /^([0-9][0-9]*)$/.test(v); - if (!isValid) throw new Error("Invalid integer: " + v); - var r = [], max = v.length, l = LOG_BASE, min = max - l; - while (max > 0) { - r.push(+v.slice(min, max)); - min -= l; - if (min < 0) min = 0; - max -= l; - } - trim(r); - return new BigInteger(r, sign); - } - - function parseNumberValue(v) { - if (isPrecise(v)) { - if (v !== truncate(v)) throw new Error(v + " is not an integer."); - return new SmallInteger(v); - } - return parseStringValue(v.toString()); - } - - function parseValue(v) { - if (typeof v === "number") { - return parseNumberValue(v); - } - if (typeof v === "string") { - return parseStringValue(v); - } - return v; - } - // Pre-define numbers in range [-999,999] - for (var i = 0; i < 1000; i++) { - Integer[i] = new SmallInteger(i); - if (i > 0) Integer[-i] = new SmallInteger(-i); - } - // Backwards compatibility - Integer.one = Integer[1]; - Integer.zero = Integer[0]; - Integer.minusOne = Integer[-1]; - Integer.max = max; - Integer.min = min; - Integer.gcd = gcd; - Integer.lcm = lcm; - Integer.isInstance = function (x) { return x instanceof BigInteger || x instanceof SmallInteger; }; - Integer.randBetween = randBetween; - - Integer.fromArray = function (digits, base, isNegative) { - return parseBaseFromArray(digits.map(parseValue), parseValue(base || 10), isNegative); - }; - - return Integer; -})(); - -// Node.js check -if (typeof module !== "undefined" && module.hasOwnProperty("exports")) { - module.exports = bigInt; -} - -//amd check -if (typeof define === "function" && define.amd) { - define("big-integer", [], function () { - return bigInt; - }); -} - -},{}],61:[function(require,module,exports){ -// (public) Constructor -function BigInteger(a, b, c) { - if (!(this instanceof BigInteger)) - return new BigInteger(a, b, c) - - if (a != null) { - if ("number" == typeof a) this.fromNumber(a, b, c) - else if (b == null && "string" != typeof a) this.fromString(a, 256) - else this.fromString(a, b) - } -} - -var proto = BigInteger.prototype - -// duck-typed isBigInteger -proto.__bigi = require('../package.json').version -BigInteger.isBigInteger = function (obj, check_ver) { - return obj && obj.__bigi && (!check_ver || obj.__bigi === proto.__bigi) -} - -// Bits per digit -var dbits - -// am: Compute w_j += (x*this_i), propagate carries, -// c is initial carry, returns final carry. -// c < 3*dvalue, x < 2*dvalue, this_i < dvalue -// We need to select the fastest one that works in this environment. - -// am1: use a single mult and divide to get the high bits, -// max digit bits should be 26 because -// max internal value = 2*dvalue^2-2*dvalue (< 2^53) -function am1(i, x, w, j, c, n) { - while (--n >= 0) { - var v = x * this[i++] + w[j] + c - c = Math.floor(v / 0x4000000) - w[j++] = v & 0x3ffffff - } - return c -} -// am2 avoids a big mult-and-extract completely. -// Max digit bits should be <= 30 because we do bitwise ops -// on values up to 2*hdvalue^2-hdvalue-1 (< 2^31) -function am2(i, x, w, j, c, n) { - var xl = x & 0x7fff, - xh = x >> 15 - while (--n >= 0) { - var l = this[i] & 0x7fff - var h = this[i++] >> 15 - var m = xh * l + h * xl - l = xl * l + ((m & 0x7fff) << 15) + w[j] + (c & 0x3fffffff) - c = (l >>> 30) + (m >>> 15) + xh * h + (c >>> 30) - w[j++] = l & 0x3fffffff - } - return c -} -// Alternately, set max digit bits to 28 since some -// browsers slow down when dealing with 32-bit numbers. -function am3(i, x, w, j, c, n) { - var xl = x & 0x3fff, - xh = x >> 14 - while (--n >= 0) { - var l = this[i] & 0x3fff - var h = this[i++] >> 14 - var m = xh * l + h * xl - l = xl * l + ((m & 0x3fff) << 14) + w[j] + c - c = (l >> 28) + (m >> 14) + xh * h - w[j++] = l & 0xfffffff - } - return c -} - -// wtf? -BigInteger.prototype.am = am1 -dbits = 26 - -BigInteger.prototype.DB = dbits -BigInteger.prototype.DM = ((1 << dbits) - 1) -var DV = BigInteger.prototype.DV = (1 << dbits) - -var BI_FP = 52 -BigInteger.prototype.FV = Math.pow(2, BI_FP) -BigInteger.prototype.F1 = BI_FP - dbits -BigInteger.prototype.F2 = 2 * dbits - BI_FP - -// Digit conversions -var BI_RM = "0123456789abcdefghijklmnopqrstuvwxyz" -var BI_RC = new Array() -var rr, vv -rr = "0".charCodeAt(0) -for (vv = 0; vv <= 9; ++vv) BI_RC[rr++] = vv -rr = "a".charCodeAt(0) -for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv -rr = "A".charCodeAt(0) -for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv - -function int2char(n) { - return BI_RM.charAt(n) -} - -function intAt(s, i) { - var c = BI_RC[s.charCodeAt(i)] - return (c == null) ? -1 : c -} - -// (protected) copy this to r -function bnpCopyTo(r) { - for (var i = this.t - 1; i >= 0; --i) r[i] = this[i] - r.t = this.t - r.s = this.s -} - -// (protected) set from integer value x, -DV <= x < DV -function bnpFromInt(x) { - this.t = 1 - this.s = (x < 0) ? -1 : 0 - if (x > 0) this[0] = x - else if (x < -1) this[0] = x + DV - else this.t = 0 -} - -// return bigint initialized to value -function nbv(i) { - var r = new BigInteger() - r.fromInt(i) - return r -} - -// (protected) set from string and radix -function bnpFromString(s, b) { - var self = this - - var k - if (b == 16) k = 4 - else if (b == 8) k = 3 - else if (b == 256) k = 8; // byte array - else if (b == 2) k = 1 - else if (b == 32) k = 5 - else if (b == 4) k = 2 - else { - self.fromRadix(s, b) - return - } - self.t = 0 - self.s = 0 - var i = s.length, - mi = false, - sh = 0 - while (--i >= 0) { - var x = (k == 8) ? s[i] & 0xff : intAt(s, i) - if (x < 0) { - if (s.charAt(i) == "-") mi = true - continue - } - mi = false - if (sh == 0) - self[self.t++] = x - else if (sh + k > self.DB) { - self[self.t - 1] |= (x & ((1 << (self.DB - sh)) - 1)) << sh - self[self.t++] = (x >> (self.DB - sh)) - } else - self[self.t - 1] |= x << sh - sh += k - if (sh >= self.DB) sh -= self.DB - } - if (k == 8 && (s[0] & 0x80) != 0) { - self.s = -1 - if (sh > 0) self[self.t - 1] |= ((1 << (self.DB - sh)) - 1) << sh - } - self.clamp() - if (mi) BigInteger.ZERO.subTo(self, self) -} - -// (protected) clamp off excess high words -function bnpClamp() { - var c = this.s & this.DM - while (this.t > 0 && this[this.t - 1] == c)--this.t -} - -// (public) return string representation in given radix -function bnToString(b) { - var self = this - if (self.s < 0) return "-" + self.negate() - .toString(b) - var k - if (b == 16) k = 4 - else if (b == 8) k = 3 - else if (b == 2) k = 1 - else if (b == 32) k = 5 - else if (b == 4) k = 2 - else return self.toRadix(b) - var km = (1 << k) - 1, - d, m = false, - r = "", - i = self.t - var p = self.DB - (i * self.DB) % k - if (i-- > 0) { - if (p < self.DB && (d = self[i] >> p) > 0) { - m = true - r = int2char(d) - } - while (i >= 0) { - if (p < k) { - d = (self[i] & ((1 << p) - 1)) << (k - p) - d |= self[--i] >> (p += self.DB - k) - } else { - d = (self[i] >> (p -= k)) & km - if (p <= 0) { - p += self.DB - --i - } - } - if (d > 0) m = true - if (m) r += int2char(d) - } - } - return m ? r : "0" -} - -// (public) -this -function bnNegate() { - var r = new BigInteger() - BigInteger.ZERO.subTo(this, r) - return r -} - -// (public) |this| -function bnAbs() { - return (this.s < 0) ? this.negate() : this -} - -// (public) return + if this > a, - if this < a, 0 if equal -function bnCompareTo(a) { - var r = this.s - a.s - if (r != 0) return r - var i = this.t - r = i - a.t - if (r != 0) return (this.s < 0) ? -r : r - while (--i >= 0) - if ((r = this[i] - a[i]) != 0) return r - return 0 -} - -// returns bit length of the integer x -function nbits(x) { - var r = 1, - t - if ((t = x >>> 16) != 0) { - x = t - r += 16 - } - if ((t = x >> 8) != 0) { - x = t - r += 8 - } - if ((t = x >> 4) != 0) { - x = t - r += 4 - } - if ((t = x >> 2) != 0) { - x = t - r += 2 - } - if ((t = x >> 1) != 0) { - x = t - r += 1 - } - return r -} - -// (public) return the number of bits in "this" -function bnBitLength() { - if (this.t <= 0) return 0 - return this.DB * (this.t - 1) + nbits(this[this.t - 1] ^ (this.s & this.DM)) -} - -// (public) return the number of bytes in "this" -function bnByteLength() { - return this.bitLength() >> 3 -} - -// (protected) r = this << n*DB -function bnpDLShiftTo(n, r) { - var i - for (i = this.t - 1; i >= 0; --i) r[i + n] = this[i] - for (i = n - 1; i >= 0; --i) r[i] = 0 - r.t = this.t + n - r.s = this.s -} - -// (protected) r = this >> n*DB -function bnpDRShiftTo(n, r) { - for (var i = n; i < this.t; ++i) r[i - n] = this[i] - r.t = Math.max(this.t - n, 0) - r.s = this.s -} - -// (protected) r = this << n -function bnpLShiftTo(n, r) { - var self = this - var bs = n % self.DB - var cbs = self.DB - bs - var bm = (1 << cbs) - 1 - var ds = Math.floor(n / self.DB), - c = (self.s << bs) & self.DM, - i - for (i = self.t - 1; i >= 0; --i) { - r[i + ds + 1] = (self[i] >> cbs) | c - c = (self[i] & bm) << bs - } - for (i = ds - 1; i >= 0; --i) r[i] = 0 - r[ds] = c - r.t = self.t + ds + 1 - r.s = self.s - r.clamp() -} - -// (protected) r = this >> n -function bnpRShiftTo(n, r) { - var self = this - r.s = self.s - var ds = Math.floor(n / self.DB) - if (ds >= self.t) { - r.t = 0 - return - } - var bs = n % self.DB - var cbs = self.DB - bs - var bm = (1 << bs) - 1 - r[0] = self[ds] >> bs - for (var i = ds + 1; i < self.t; ++i) { - r[i - ds - 1] |= (self[i] & bm) << cbs - r[i - ds] = self[i] >> bs - } - if (bs > 0) r[self.t - ds - 1] |= (self.s & bm) << cbs - r.t = self.t - ds - r.clamp() -} - -// (protected) r = this - a -function bnpSubTo(a, r) { - var self = this - var i = 0, - c = 0, - m = Math.min(a.t, self.t) - while (i < m) { - c += self[i] - a[i] - r[i++] = c & self.DM - c >>= self.DB - } - if (a.t < self.t) { - c -= a.s - while (i < self.t) { - c += self[i] - r[i++] = c & self.DM - c >>= self.DB - } - c += self.s - } else { - c += self.s - while (i < a.t) { - c -= a[i] - r[i++] = c & self.DM - c >>= self.DB - } - c -= a.s - } - r.s = (c < 0) ? -1 : 0 - if (c < -1) r[i++] = self.DV + c - else if (c > 0) r[i++] = c - r.t = i - r.clamp() -} - -// (protected) r = this * a, r != this,a (HAC 14.12) -// "this" should be the larger one if appropriate. -function bnpMultiplyTo(a, r) { - var x = this.abs(), - y = a.abs() - var i = x.t - r.t = i + y.t - while (--i >= 0) r[i] = 0 - for (i = 0; i < y.t; ++i) r[i + x.t] = x.am(0, y[i], r, i, 0, x.t) - r.s = 0 - r.clamp() - if (this.s != a.s) BigInteger.ZERO.subTo(r, r) -} - -// (protected) r = this^2, r != this (HAC 14.16) -function bnpSquareTo(r) { - var x = this.abs() - var i = r.t = 2 * x.t - while (--i >= 0) r[i] = 0 - for (i = 0; i < x.t - 1; ++i) { - var c = x.am(i, x[i], r, 2 * i, 0, 1) - if ((r[i + x.t] += x.am(i + 1, 2 * x[i], r, 2 * i + 1, c, x.t - i - 1)) >= x.DV) { - r[i + x.t] -= x.DV - r[i + x.t + 1] = 1 - } - } - if (r.t > 0) r[r.t - 1] += x.am(i, x[i], r, 2 * i, 0, 1) - r.s = 0 - r.clamp() -} - -// (protected) divide this by m, quotient and remainder to q, r (HAC 14.20) -// r != q, this != m. q or r may be null. -function bnpDivRemTo(m, q, r) { - var self = this - var pm = m.abs() - if (pm.t <= 0) return - var pt = self.abs() - if (pt.t < pm.t) { - if (q != null) q.fromInt(0) - if (r != null) self.copyTo(r) - return - } - if (r == null) r = new BigInteger() - var y = new BigInteger(), - ts = self.s, - ms = m.s - var nsh = self.DB - nbits(pm[pm.t - 1]); // normalize modulus - if (nsh > 0) { - pm.lShiftTo(nsh, y) - pt.lShiftTo(nsh, r) - } else { - pm.copyTo(y) - pt.copyTo(r) - } - var ys = y.t - var y0 = y[ys - 1] - if (y0 == 0) return - var yt = y0 * (1 << self.F1) + ((ys > 1) ? y[ys - 2] >> self.F2 : 0) - var d1 = self.FV / yt, - d2 = (1 << self.F1) / yt, - e = 1 << self.F2 - var i = r.t, - j = i - ys, - t = (q == null) ? new BigInteger() : q - y.dlShiftTo(j, t) - if (r.compareTo(t) >= 0) { - r[r.t++] = 1 - r.subTo(t, r) - } - BigInteger.ONE.dlShiftTo(ys, t) - t.subTo(y, y); // "negative" y so we can replace sub with am later - while (y.t < ys) y[y.t++] = 0 - while (--j >= 0) { - // Estimate quotient digit - var qd = (r[--i] == y0) ? self.DM : Math.floor(r[i] * d1 + (r[i - 1] + e) * d2) - if ((r[i] += y.am(0, qd, r, j, 0, ys)) < qd) { // Try it out - y.dlShiftTo(j, t) - r.subTo(t, r) - while (r[i] < --qd) r.subTo(t, r) - } - } - if (q != null) { - r.drShiftTo(ys, q) - if (ts != ms) BigInteger.ZERO.subTo(q, q) - } - r.t = ys - r.clamp() - if (nsh > 0) r.rShiftTo(nsh, r); // Denormalize remainder - if (ts < 0) BigInteger.ZERO.subTo(r, r) -} - -// (public) this mod a -function bnMod(a) { - var r = new BigInteger() - this.abs() - .divRemTo(a, null, r) - if (this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r, r) - return r -} - -// Modular reduction using "classic" algorithm -function Classic(m) { - this.m = m -} - -function cConvert(x) { - if (x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m) - else return x -} - -function cRevert(x) { - return x -} - -function cReduce(x) { - x.divRemTo(this.m, null, x) -} - -function cMulTo(x, y, r) { - x.multiplyTo(y, r) - this.reduce(r) -} - -function cSqrTo(x, r) { - x.squareTo(r) - this.reduce(r) -} - -Classic.prototype.convert = cConvert -Classic.prototype.revert = cRevert -Classic.prototype.reduce = cReduce -Classic.prototype.mulTo = cMulTo -Classic.prototype.sqrTo = cSqrTo - -// (protected) return "-1/this % 2^DB"; useful for Mont. reduction -// justification: -// xy == 1 (mod m) -// xy = 1+km -// xy(2-xy) = (1+km)(1-km) -// x[y(2-xy)] = 1-k^2m^2 -// x[y(2-xy)] == 1 (mod m^2) -// if y is 1/x mod m, then y(2-xy) is 1/x mod m^2 -// should reduce x and y(2-xy) by m^2 at each step to keep size bounded. -// JS multiply "overflows" differently from C/C++, so care is needed here. -function bnpInvDigit() { - if (this.t < 1) return 0 - var x = this[0] - if ((x & 1) == 0) return 0 - var y = x & 3; // y == 1/x mod 2^2 - y = (y * (2 - (x & 0xf) * y)) & 0xf; // y == 1/x mod 2^4 - y = (y * (2 - (x & 0xff) * y)) & 0xff; // y == 1/x mod 2^8 - y = (y * (2 - (((x & 0xffff) * y) & 0xffff))) & 0xffff; // y == 1/x mod 2^16 - // last step - calculate inverse mod DV directly - // assumes 16 < DB <= 32 and assumes ability to handle 48-bit ints - y = (y * (2 - x * y % this.DV)) % this.DV; // y == 1/x mod 2^dbits - // we really want the negative inverse, and -DV < y < DV - return (y > 0) ? this.DV - y : -y -} - -// Montgomery reduction -function Montgomery(m) { - this.m = m - this.mp = m.invDigit() - this.mpl = this.mp & 0x7fff - this.mph = this.mp >> 15 - this.um = (1 << (m.DB - 15)) - 1 - this.mt2 = 2 * m.t -} - -// xR mod m -function montConvert(x) { - var r = new BigInteger() - x.abs() - .dlShiftTo(this.m.t, r) - r.divRemTo(this.m, null, r) - if (x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r, r) - return r -} - -// x/R mod m -function montRevert(x) { - var r = new BigInteger() - x.copyTo(r) - this.reduce(r) - return r -} - -// x = x/R mod m (HAC 14.32) -function montReduce(x) { - while (x.t <= this.mt2) // pad x so am has enough room later - x[x.t++] = 0 - for (var i = 0; i < this.m.t; ++i) { - // faster way of calculating u0 = x[i]*mp mod DV - var j = x[i] & 0x7fff - var u0 = (j * this.mpl + (((j * this.mph + (x[i] >> 15) * this.mpl) & this.um) << 15)) & x.DM - // use am to combine the multiply-shift-add into one call - j = i + this.m.t - x[j] += this.m.am(0, u0, x, i, 0, this.m.t) - // propagate carry - while (x[j] >= x.DV) { - x[j] -= x.DV - x[++j]++ - } - } - x.clamp() - x.drShiftTo(this.m.t, x) - if (x.compareTo(this.m) >= 0) x.subTo(this.m, x) -} - -// r = "x^2/R mod m"; x != r -function montSqrTo(x, r) { - x.squareTo(r) - this.reduce(r) -} - -// r = "xy/R mod m"; x,y != r -function montMulTo(x, y, r) { - x.multiplyTo(y, r) - this.reduce(r) -} - -Montgomery.prototype.convert = montConvert -Montgomery.prototype.revert = montRevert -Montgomery.prototype.reduce = montReduce -Montgomery.prototype.mulTo = montMulTo -Montgomery.prototype.sqrTo = montSqrTo - -// (protected) true iff this is even -function bnpIsEven() { - return ((this.t > 0) ? (this[0] & 1) : this.s) == 0 -} - -// (protected) this^e, e < 2^32, doing sqr and mul with "r" (HAC 14.79) -function bnpExp(e, z) { - if (e > 0xffffffff || e < 1) return BigInteger.ONE - var r = new BigInteger(), - r2 = new BigInteger(), - g = z.convert(this), - i = nbits(e) - 1 - g.copyTo(r) - while (--i >= 0) { - z.sqrTo(r, r2) - if ((e & (1 << i)) > 0) z.mulTo(r2, g, r) - else { - var t = r - r = r2 - r2 = t - } - } - return z.revert(r) -} - -// (public) this^e % m, 0 <= e < 2^32 -function bnModPowInt(e, m) { - var z - if (e < 256 || m.isEven()) z = new Classic(m) - else z = new Montgomery(m) - return this.exp(e, z) -} - -// protected -proto.copyTo = bnpCopyTo -proto.fromInt = bnpFromInt -proto.fromString = bnpFromString -proto.clamp = bnpClamp -proto.dlShiftTo = bnpDLShiftTo -proto.drShiftTo = bnpDRShiftTo -proto.lShiftTo = bnpLShiftTo -proto.rShiftTo = bnpRShiftTo -proto.subTo = bnpSubTo -proto.multiplyTo = bnpMultiplyTo -proto.squareTo = bnpSquareTo -proto.divRemTo = bnpDivRemTo -proto.invDigit = bnpInvDigit -proto.isEven = bnpIsEven -proto.exp = bnpExp - -// public -proto.toString = bnToString -proto.negate = bnNegate -proto.abs = bnAbs -proto.compareTo = bnCompareTo -proto.bitLength = bnBitLength -proto.byteLength = bnByteLength -proto.mod = bnMod -proto.modPowInt = bnModPowInt - -// (public) -function bnClone() { - var r = new BigInteger() - this.copyTo(r) - return r -} - -// (public) return value as integer -function bnIntValue() { - if (this.s < 0) { - if (this.t == 1) return this[0] - this.DV - else if (this.t == 0) return -1 - } else if (this.t == 1) return this[0] - else if (this.t == 0) return 0 - // assumes 16 < DB < 32 - return ((this[1] & ((1 << (32 - this.DB)) - 1)) << this.DB) | this[0] -} - -// (public) return value as byte -function bnByteValue() { - return (this.t == 0) ? this.s : (this[0] << 24) >> 24 -} - -// (public) return value as short (assumes DB>=16) -function bnShortValue() { - return (this.t == 0) ? this.s : (this[0] << 16) >> 16 -} - -// (protected) return x s.t. r^x < DV -function bnpChunkSize(r) { - return Math.floor(Math.LN2 * this.DB / Math.log(r)) -} - -// (public) 0 if this == 0, 1 if this > 0 -function bnSigNum() { - if (this.s < 0) return -1 - else if (this.t <= 0 || (this.t == 1 && this[0] <= 0)) return 0 - else return 1 -} - -// (protected) convert to radix string -function bnpToRadix(b) { - if (b == null) b = 10 - if (this.signum() == 0 || b < 2 || b > 36) return "0" - var cs = this.chunkSize(b) - var a = Math.pow(b, cs) - var d = nbv(a), - y = new BigInteger(), - z = new BigInteger(), - r = "" - this.divRemTo(d, y, z) - while (y.signum() > 0) { - r = (a + z.intValue()) - .toString(b) - .substr(1) + r - y.divRemTo(d, y, z) - } - return z.intValue() - .toString(b) + r -} - -// (protected) convert from radix string -function bnpFromRadix(s, b) { - var self = this - self.fromInt(0) - if (b == null) b = 10 - var cs = self.chunkSize(b) - var d = Math.pow(b, cs), - mi = false, - j = 0, - w = 0 - for (var i = 0; i < s.length; ++i) { - var x = intAt(s, i) - if (x < 0) { - if (s.charAt(i) == "-" && self.signum() == 0) mi = true - continue - } - w = b * w + x - if (++j >= cs) { - self.dMultiply(d) - self.dAddOffset(w, 0) - j = 0 - w = 0 - } - } - if (j > 0) { - self.dMultiply(Math.pow(b, j)) - self.dAddOffset(w, 0) - } - if (mi) BigInteger.ZERO.subTo(self, self) -} - -// (protected) alternate constructor -function bnpFromNumber(a, b, c) { - var self = this - if ("number" == typeof b) { - // new BigInteger(int,int,RNG) - if (a < 2) self.fromInt(1) - else { - self.fromNumber(a, c) - if (!self.testBit(a - 1)) // force MSB set - self.bitwiseTo(BigInteger.ONE.shiftLeft(a - 1), op_or, self) - if (self.isEven()) self.dAddOffset(1, 0); // force odd - while (!self.isProbablePrime(b)) { - self.dAddOffset(2, 0) - if (self.bitLength() > a) self.subTo(BigInteger.ONE.shiftLeft(a - 1), self) - } - } - } else { - // new BigInteger(int,RNG) - var x = new Array(), - t = a & 7 - x.length = (a >> 3) + 1 - b.nextBytes(x) - if (t > 0) x[0] &= ((1 << t) - 1) - else x[0] = 0 - self.fromString(x, 256) - } -} - -// (public) convert to bigendian byte array -function bnToByteArray() { - var self = this - var i = self.t, - r = new Array() - r[0] = self.s - var p = self.DB - (i * self.DB) % 8, - d, k = 0 - if (i-- > 0) { - if (p < self.DB && (d = self[i] >> p) != (self.s & self.DM) >> p) - r[k++] = d | (self.s << (self.DB - p)) - while (i >= 0) { - if (p < 8) { - d = (self[i] & ((1 << p) - 1)) << (8 - p) - d |= self[--i] >> (p += self.DB - 8) - } else { - d = (self[i] >> (p -= 8)) & 0xff - if (p <= 0) { - p += self.DB - --i - } - } - if ((d & 0x80) != 0) d |= -256 - if (k === 0 && (self.s & 0x80) != (d & 0x80))++k - if (k > 0 || d != self.s) r[k++] = d - } - } - return r -} - -function bnEquals(a) { - return (this.compareTo(a) == 0) -} - -function bnMin(a) { - return (this.compareTo(a) < 0) ? this : a -} - -function bnMax(a) { - return (this.compareTo(a) > 0) ? this : a -} - -// (protected) r = this op a (bitwise) -function bnpBitwiseTo(a, op, r) { - var self = this - var i, f, m = Math.min(a.t, self.t) - for (i = 0; i < m; ++i) r[i] = op(self[i], a[i]) - if (a.t < self.t) { - f = a.s & self.DM - for (i = m; i < self.t; ++i) r[i] = op(self[i], f) - r.t = self.t - } else { - f = self.s & self.DM - for (i = m; i < a.t; ++i) r[i] = op(f, a[i]) - r.t = a.t - } - r.s = op(self.s, a.s) - r.clamp() -} - -// (public) this & a -function op_and(x, y) { - return x & y -} - -function bnAnd(a) { - var r = new BigInteger() - this.bitwiseTo(a, op_and, r) - return r -} - -// (public) this | a -function op_or(x, y) { - return x | y -} - -function bnOr(a) { - var r = new BigInteger() - this.bitwiseTo(a, op_or, r) - return r -} - -// (public) this ^ a -function op_xor(x, y) { - return x ^ y -} - -function bnXor(a) { - var r = new BigInteger() - this.bitwiseTo(a, op_xor, r) - return r -} - -// (public) this & ~a -function op_andnot(x, y) { - return x & ~y -} - -function bnAndNot(a) { - var r = new BigInteger() - this.bitwiseTo(a, op_andnot, r) - return r -} - -// (public) ~this -function bnNot() { - var r = new BigInteger() - for (var i = 0; i < this.t; ++i) r[i] = this.DM & ~this[i] - r.t = this.t - r.s = ~this.s - return r -} - -// (public) this << n -function bnShiftLeft(n) { - var r = new BigInteger() - if (n < 0) this.rShiftTo(-n, r) - else this.lShiftTo(n, r) - return r -} - -// (public) this >> n -function bnShiftRight(n) { - var r = new BigInteger() - if (n < 0) this.lShiftTo(-n, r) - else this.rShiftTo(n, r) - return r -} - -// return index of lowest 1-bit in x, x < 2^31 -function lbit(x) { - if (x == 0) return -1 - var r = 0 - if ((x & 0xffff) == 0) { - x >>= 16 - r += 16 - } - if ((x & 0xff) == 0) { - x >>= 8 - r += 8 - } - if ((x & 0xf) == 0) { - x >>= 4 - r += 4 - } - if ((x & 3) == 0) { - x >>= 2 - r += 2 - } - if ((x & 1) == 0)++r - return r -} - -// (public) returns index of lowest 1-bit (or -1 if none) -function bnGetLowestSetBit() { - for (var i = 0; i < this.t; ++i) - if (this[i] != 0) return i * this.DB + lbit(this[i]) - if (this.s < 0) return this.t * this.DB - return -1 -} - -// return number of 1 bits in x -function cbit(x) { - var r = 0 - while (x != 0) { - x &= x - 1 - ++r - } - return r -} - -// (public) return number of set bits -function bnBitCount() { - var r = 0, - x = this.s & this.DM - for (var i = 0; i < this.t; ++i) r += cbit(this[i] ^ x) - return r -} - -// (public) true iff nth bit is set -function bnTestBit(n) { - var j = Math.floor(n / this.DB) - if (j >= this.t) return (this.s != 0) - return ((this[j] & (1 << (n % this.DB))) != 0) -} - -// (protected) this op (1<>= self.DB - } - if (a.t < self.t) { - c += a.s - while (i < self.t) { - c += self[i] - r[i++] = c & self.DM - c >>= self.DB - } - c += self.s - } else { - c += self.s - while (i < a.t) { - c += a[i] - r[i++] = c & self.DM - c >>= self.DB - } - c += a.s - } - r.s = (c < 0) ? -1 : 0 - if (c > 0) r[i++] = c - else if (c < -1) r[i++] = self.DV + c - r.t = i - r.clamp() -} - -// (public) this + a -function bnAdd(a) { - var r = new BigInteger() - this.addTo(a, r) - return r -} - -// (public) this - a -function bnSubtract(a) { - var r = new BigInteger() - this.subTo(a, r) - return r -} - -// (public) this * a -function bnMultiply(a) { - var r = new BigInteger() - this.multiplyTo(a, r) - return r -} - -// (public) this^2 -function bnSquare() { - var r = new BigInteger() - this.squareTo(r) - return r -} - -// (public) this / a -function bnDivide(a) { - var r = new BigInteger() - this.divRemTo(a, r, null) - return r -} - -// (public) this % a -function bnRemainder(a) { - var r = new BigInteger() - this.divRemTo(a, null, r) - return r -} - -// (public) [this/a,this%a] -function bnDivideAndRemainder(a) { - var q = new BigInteger(), - r = new BigInteger() - this.divRemTo(a, q, r) - return new Array(q, r) -} - -// (protected) this *= n, this >= 0, 1 < n < DV -function bnpDMultiply(n) { - this[this.t] = this.am(0, n - 1, this, 0, 0, this.t) - ++this.t - this.clamp() -} - -// (protected) this += n << w words, this >= 0 -function bnpDAddOffset(n, w) { - if (n == 0) return - while (this.t <= w) this[this.t++] = 0 - this[w] += n - while (this[w] >= this.DV) { - this[w] -= this.DV - if (++w >= this.t) this[this.t++] = 0 - ++this[w] - } -} - -// A "null" reducer -function NullExp() {} - -function nNop(x) { - return x -} - -function nMulTo(x, y, r) { - x.multiplyTo(y, r) -} - -function nSqrTo(x, r) { - x.squareTo(r) -} - -NullExp.prototype.convert = nNop -NullExp.prototype.revert = nNop -NullExp.prototype.mulTo = nMulTo -NullExp.prototype.sqrTo = nSqrTo - -// (public) this^e -function bnPow(e) { - return this.exp(e, new NullExp()) -} - -// (protected) r = lower n words of "this * a", a.t <= n -// "this" should be the larger one if appropriate. -function bnpMultiplyLowerTo(a, n, r) { - var i = Math.min(this.t + a.t, n) - r.s = 0; // assumes a,this >= 0 - r.t = i - while (i > 0) r[--i] = 0 - var j - for (j = r.t - this.t; i < j; ++i) r[i + this.t] = this.am(0, a[i], r, i, 0, this.t) - for (j = Math.min(a.t, n); i < j; ++i) this.am(0, a[i], r, i, 0, n - i) - r.clamp() -} - -// (protected) r = "this * a" without lower n words, n > 0 -// "this" should be the larger one if appropriate. -function bnpMultiplyUpperTo(a, n, r) { - --n - var i = r.t = this.t + a.t - n - r.s = 0; // assumes a,this >= 0 - while (--i >= 0) r[i] = 0 - for (i = Math.max(n - this.t, 0); i < a.t; ++i) - r[this.t + i - n] = this.am(n - i, a[i], r, 0, 0, this.t + i - n) - r.clamp() - r.drShiftTo(1, r) -} - -// Barrett modular reduction -function Barrett(m) { - // setup Barrett - this.r2 = new BigInteger() - this.q3 = new BigInteger() - BigInteger.ONE.dlShiftTo(2 * m.t, this.r2) - this.mu = this.r2.divide(m) - this.m = m -} - -function barrettConvert(x) { - if (x.s < 0 || x.t > 2 * this.m.t) return x.mod(this.m) - else if (x.compareTo(this.m) < 0) return x - else { - var r = new BigInteger() - x.copyTo(r) - this.reduce(r) - return r - } -} - -function barrettRevert(x) { - return x -} - -// x = x mod m (HAC 14.42) -function barrettReduce(x) { - var self = this - x.drShiftTo(self.m.t - 1, self.r2) - if (x.t > self.m.t + 1) { - x.t = self.m.t + 1 - x.clamp() - } - self.mu.multiplyUpperTo(self.r2, self.m.t + 1, self.q3) - self.m.multiplyLowerTo(self.q3, self.m.t + 1, self.r2) - while (x.compareTo(self.r2) < 0) x.dAddOffset(1, self.m.t + 1) - x.subTo(self.r2, x) - while (x.compareTo(self.m) >= 0) x.subTo(self.m, x) -} - -// r = x^2 mod m; x != r -function barrettSqrTo(x, r) { - x.squareTo(r) - this.reduce(r) -} - -// r = x*y mod m; x,y != r -function barrettMulTo(x, y, r) { - x.multiplyTo(y, r) - this.reduce(r) -} - -Barrett.prototype.convert = barrettConvert -Barrett.prototype.revert = barrettRevert -Barrett.prototype.reduce = barrettReduce -Barrett.prototype.mulTo = barrettMulTo -Barrett.prototype.sqrTo = barrettSqrTo - -// (public) this^e % m (HAC 14.85) -function bnModPow(e, m) { - var i = e.bitLength(), - k, r = nbv(1), - z - if (i <= 0) return r - else if (i < 18) k = 1 - else if (i < 48) k = 3 - else if (i < 144) k = 4 - else if (i < 768) k = 5 - else k = 6 - if (i < 8) - z = new Classic(m) - else if (m.isEven()) - z = new Barrett(m) - else - z = new Montgomery(m) - - // precomputation - var g = new Array(), - n = 3, - k1 = k - 1, - km = (1 << k) - 1 - g[1] = z.convert(this) - if (k > 1) { - var g2 = new BigInteger() - z.sqrTo(g[1], g2) - while (n <= km) { - g[n] = new BigInteger() - z.mulTo(g2, g[n - 2], g[n]) - n += 2 - } - } - - var j = e.t - 1, - w, is1 = true, - r2 = new BigInteger(), - t - i = nbits(e[j]) - 1 - while (j >= 0) { - if (i >= k1) w = (e[j] >> (i - k1)) & km - else { - w = (e[j] & ((1 << (i + 1)) - 1)) << (k1 - i) - if (j > 0) w |= e[j - 1] >> (this.DB + i - k1) - } - - n = k - while ((w & 1) == 0) { - w >>= 1 - --n - } - if ((i -= n) < 0) { - i += this.DB - --j - } - if (is1) { // ret == 1, don't bother squaring or multiplying it - g[w].copyTo(r) - is1 = false - } else { - while (n > 1) { - z.sqrTo(r, r2) - z.sqrTo(r2, r) - n -= 2 - } - if (n > 0) z.sqrTo(r, r2) - else { - t = r - r = r2 - r2 = t - } - z.mulTo(r2, g[w], r) - } - - while (j >= 0 && (e[j] & (1 << i)) == 0) { - z.sqrTo(r, r2) - t = r - r = r2 - r2 = t - if (--i < 0) { - i = this.DB - 1 - --j - } - } - } - return z.revert(r) -} - -// (public) gcd(this,a) (HAC 14.54) -function bnGCD(a) { - var x = (this.s < 0) ? this.negate() : this.clone() - var y = (a.s < 0) ? a.negate() : a.clone() - if (x.compareTo(y) < 0) { - var t = x - x = y - y = t - } - var i = x.getLowestSetBit(), - g = y.getLowestSetBit() - if (g < 0) return x - if (i < g) g = i - if (g > 0) { - x.rShiftTo(g, x) - y.rShiftTo(g, y) - } - while (x.signum() > 0) { - if ((i = x.getLowestSetBit()) > 0) x.rShiftTo(i, x) - if ((i = y.getLowestSetBit()) > 0) y.rShiftTo(i, y) - if (x.compareTo(y) >= 0) { - x.subTo(y, x) - x.rShiftTo(1, x) - } else { - y.subTo(x, y) - y.rShiftTo(1, y) - } - } - if (g > 0) y.lShiftTo(g, y) - return y -} - -// (protected) this % n, n < 2^26 -function bnpModInt(n) { - if (n <= 0) return 0 - var d = this.DV % n, - r = (this.s < 0) ? n - 1 : 0 - if (this.t > 0) - if (d == 0) r = this[0] % n - else - for (var i = this.t - 1; i >= 0; --i) r = (d * r + this[i]) % n - return r -} - -// (public) 1/this % m (HAC 14.61) -function bnModInverse(m) { - var ac = m.isEven() - if (this.signum() === 0) throw new Error('division by zero') - if ((this.isEven() && ac) || m.signum() == 0) return BigInteger.ZERO - var u = m.clone(), - v = this.clone() - var a = nbv(1), - b = nbv(0), - c = nbv(0), - d = nbv(1) - while (u.signum() != 0) { - while (u.isEven()) { - u.rShiftTo(1, u) - if (ac) { - if (!a.isEven() || !b.isEven()) { - a.addTo(this, a) - b.subTo(m, b) - } - a.rShiftTo(1, a) - } else if (!b.isEven()) b.subTo(m, b) - b.rShiftTo(1, b) - } - while (v.isEven()) { - v.rShiftTo(1, v) - if (ac) { - if (!c.isEven() || !d.isEven()) { - c.addTo(this, c) - d.subTo(m, d) - } - c.rShiftTo(1, c) - } else if (!d.isEven()) d.subTo(m, d) - d.rShiftTo(1, d) - } - if (u.compareTo(v) >= 0) { - u.subTo(v, u) - if (ac) a.subTo(c, a) - b.subTo(d, b) - } else { - v.subTo(u, v) - if (ac) c.subTo(a, c) - d.subTo(b, d) - } - } - if (v.compareTo(BigInteger.ONE) != 0) return BigInteger.ZERO - while (d.compareTo(m) >= 0) d.subTo(m, d) - while (d.signum() < 0) d.addTo(m, d) - return d -} - -var lowprimes = [ - 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, - 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, - 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, - 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, - 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, - 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, - 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, - 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, - 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, - 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, - 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997 -] - -var lplim = (1 << 26) / lowprimes[lowprimes.length - 1] - -// (public) test primality with certainty >= 1-.5^t -function bnIsProbablePrime(t) { - var i, x = this.abs() - if (x.t == 1 && x[0] <= lowprimes[lowprimes.length - 1]) { - for (i = 0; i < lowprimes.length; ++i) - if (x[0] == lowprimes[i]) return true - return false - } - if (x.isEven()) return false - i = 1 - while (i < lowprimes.length) { - var m = lowprimes[i], - j = i + 1 - while (j < lowprimes.length && m < lplim) m *= lowprimes[j++] - m = x.modInt(m) - while (i < j) if (m % lowprimes[i++] == 0) return false - } - return x.millerRabin(t) -} - -// (protected) true if probably prime (HAC 4.24, Miller-Rabin) -function bnpMillerRabin(t) { - var n1 = this.subtract(BigInteger.ONE) - var k = n1.getLowestSetBit() - if (k <= 0) return false - var r = n1.shiftRight(k) - t = (t + 1) >> 1 - if (t > lowprimes.length) t = lowprimes.length - var a = new BigInteger(null) - var j, bases = [] - for (var i = 0; i < t; ++i) { - for (;;) { - j = lowprimes[Math.floor(Math.random() * lowprimes.length)] - if (bases.indexOf(j) == -1) break - } - bases.push(j) - a.fromInt(j) - var y = a.modPow(r, this) - if (y.compareTo(BigInteger.ONE) != 0 && y.compareTo(n1) != 0) { - var j = 1 - while (j++ < k && y.compareTo(n1) != 0) { - y = y.modPowInt(2, this) - if (y.compareTo(BigInteger.ONE) == 0) return false - } - if (y.compareTo(n1) != 0) return false - } - } - return true -} - -// protected -proto.chunkSize = bnpChunkSize -proto.toRadix = bnpToRadix -proto.fromRadix = bnpFromRadix -proto.fromNumber = bnpFromNumber -proto.bitwiseTo = bnpBitwiseTo -proto.changeBit = bnpChangeBit -proto.addTo = bnpAddTo -proto.dMultiply = bnpDMultiply -proto.dAddOffset = bnpDAddOffset -proto.multiplyLowerTo = bnpMultiplyLowerTo -proto.multiplyUpperTo = bnpMultiplyUpperTo -proto.modInt = bnpModInt -proto.millerRabin = bnpMillerRabin - -// public -proto.clone = bnClone -proto.intValue = bnIntValue -proto.byteValue = bnByteValue -proto.shortValue = bnShortValue -proto.signum = bnSigNum -proto.toByteArray = bnToByteArray -proto.equals = bnEquals -proto.min = bnMin -proto.max = bnMax -proto.and = bnAnd -proto.or = bnOr -proto.xor = bnXor -proto.andNot = bnAndNot -proto.not = bnNot -proto.shiftLeft = bnShiftLeft -proto.shiftRight = bnShiftRight -proto.getLowestSetBit = bnGetLowestSetBit -proto.bitCount = bnBitCount -proto.testBit = bnTestBit -proto.setBit = bnSetBit -proto.clearBit = bnClearBit -proto.flipBit = bnFlipBit -proto.add = bnAdd -proto.subtract = bnSubtract -proto.multiply = bnMultiply -proto.divide = bnDivide -proto.remainder = bnRemainder -proto.divideAndRemainder = bnDivideAndRemainder -proto.modPow = bnModPow -proto.modInverse = bnModInverse -proto.pow = bnPow -proto.gcd = bnGCD -proto.isProbablePrime = bnIsProbablePrime - -// JSBN-specific extension -proto.square = bnSquare - -// constants -BigInteger.ZERO = nbv(0) -BigInteger.ONE = nbv(1) -BigInteger.valueOf = nbv - -module.exports = BigInteger - -},{"../package.json":64}],62:[function(require,module,exports){ -(function (Buffer){ -// FIXME: Kind of a weird way to throw exceptions, consider removing -var assert = require('assert') -var BigInteger = require('./bigi') - -/** - * Turns a byte array into a big integer. - * - * This function will interpret a byte array as a big integer in big - * endian notation. - */ -BigInteger.fromByteArrayUnsigned = function(byteArray) { - // BigInteger expects a DER integer conformant byte array - if (byteArray[0] & 0x80) { - return new BigInteger([0].concat(byteArray)) - } - - return new BigInteger(byteArray) -} - -/** - * Returns a byte array representation of the big integer. - * - * This returns the absolute of the contained value in big endian - * form. A value of zero results in an empty array. - */ -BigInteger.prototype.toByteArrayUnsigned = function() { - var byteArray = this.toByteArray() - return byteArray[0] === 0 ? byteArray.slice(1) : byteArray -} - -BigInteger.fromDERInteger = function(byteArray) { - return new BigInteger(byteArray) -} - -/* - * Converts BigInteger to a DER integer representation. - * - * The format for this value uses the most significant bit as a sign - * bit. If the most significant bit is already set and the integer is - * positive, a 0x00 is prepended. - * - * Examples: - * - * 0 => 0x00 - * 1 => 0x01 - * -1 => 0xff - * 127 => 0x7f - * -127 => 0x81 - * 128 => 0x0080 - * -128 => 0x80 - * 255 => 0x00ff - * -255 => 0xff01 - * 16300 => 0x3fac - * -16300 => 0xc054 - * 62300 => 0x00f35c - * -62300 => 0xff0ca4 -*/ -BigInteger.prototype.toDERInteger = BigInteger.prototype.toByteArray - -BigInteger.fromBuffer = function(buffer) { - // BigInteger expects a DER integer conformant byte array - if (buffer[0] & 0x80) { - var byteArray = Array.prototype.slice.call(buffer) - - return new BigInteger([0].concat(byteArray)) - } - - return new BigInteger(buffer) -} - -BigInteger.fromHex = function(hex) { - if (hex === '') return BigInteger.ZERO - - assert.equal(hex, hex.match(/^[A-Fa-f0-9]+/), 'Invalid hex string') - assert.equal(hex.length % 2, 0, 'Incomplete hex') - return new BigInteger(hex, 16) -} - -BigInteger.prototype.toBuffer = function(size) { - var byteArray = this.toByteArrayUnsigned() - var zeros = [] - - var padding = size - byteArray.length - while (zeros.length < padding) zeros.push(0) - - return new Buffer(zeros.concat(byteArray)) -} - -BigInteger.prototype.toHex = function(size) { - return this.toBuffer(size).toString('hex') -} - -}).call(this,require("buffer").Buffer) -},{"./bigi":61,"assert":26,"buffer":146}],63:[function(require,module,exports){ -var BigInteger = require('./bigi') - -//addons -require('./convert') - -module.exports = BigInteger -},{"./bigi":61,"./convert":62}],64:[function(require,module,exports){ -module.exports={ - "_from": "bigi@^1.2.0", - "_id": "bigi@1.4.2", - "_inBundle": false, - "_integrity": "sha1-nGZalfiLiwj8Bc/XMfVhhZ1yWCU=", - "_location": "/bigi", - "_phantomChildren": {}, - "_requested": { - "type": "range", - "registry": true, - "raw": "bigi@^1.2.0", - "name": "bigi", - "escapedName": "bigi", - "rawSpec": "^1.2.0", - "saveSpec": null, - "fetchSpec": "^1.2.0" - }, - "_requiredBy": [ - "/bip38", - "/bitcoinjs-lib", - "/ecurve" - ], - "_resolved": "https://registry.npmjs.org/bigi/-/bigi-1.4.2.tgz", - "_shasum": "9c665a95f88b8b08fc05cfd731f561859d725825", - "_spec": "bigi@^1.2.0", - "_where": "/home/ian/git/bitcoin/bip39/libs/combined/node_modules/bip38", - "bugs": { - "url": "https://github.com/cryptocoinjs/bigi/issues" - }, - "bundleDependencies": false, - "dependencies": {}, - "deprecated": false, - "description": "Big integers.", - "devDependencies": { - "coveralls": "^2.11.2", - "istanbul": "^0.3.5", - "jshint": "^2.5.1", - "mocha": "^2.1.0", - "mochify": "^2.1.0" - }, - "homepage": "https://github.com/cryptocoinjs/bigi#readme", - "keywords": [ - "cryptography", - "math", - "bitcoin", - "arbitrary", - "precision", - "arithmetic", - "big", - "integer", - "int", - "number", - "biginteger", - "bigint", - "bignumber", - "decimal", - "float" - ], - "main": "./lib/index.js", - "name": "bigi", - "repository": { - "url": "git+https://github.com/cryptocoinjs/bigi.git", - "type": "git" - }, - "scripts": { - "browser-test": "mochify --wd -R spec", - "coverage": "istanbul cover ./node_modules/.bin/_mocha -- --reporter list test/*.js", - "coveralls": "npm run-script coverage && node ./node_modules/.bin/coveralls < coverage/lcov.info", - "jshint": "jshint --config jshint.json lib/*.js ; true", - "test": "_mocha -- test/*.js", - "unit": "mocha" - }, - "testling": { - "files": "test/*.js", - "harness": "mocha", - "browsers": [ - "ie/9..latest", - "firefox/latest", - "chrome/latest", - "safari/6.0..latest", - "iphone/6.0..latest", - "android-browser/4.2..latest" - ] - }, - "version": "1.4.2" -} - -},{}],65:[function(require,module,exports){ -/*! bignumber.js v5.0.0 https://github.com/MikeMcl/bignumber.js/LICENCE */ - -;(function (globalObj) { - 'use strict'; - - /* - bignumber.js v5.0.0 - A JavaScript library for arbitrary-precision arithmetic. - https://github.com/MikeMcl/bignumber.js - Copyright (c) 2017 Michael Mclaughlin - MIT Expat Licence - */ - - - var BigNumber, - isNumeric = /^-?(\d+(\.\d*)?|\.\d+)(e[+-]?\d+)?$/i, - mathceil = Math.ceil, - mathfloor = Math.floor, - notBool = ' not a boolean or binary digit', - roundingMode = 'rounding mode', - tooManyDigits = 'number type has more than 15 significant digits', - ALPHABET = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_', - BASE = 1e14, - LOG_BASE = 14, - MAX_SAFE_INTEGER = 0x1fffffffffffff, // 2^53 - 1 - // MAX_INT32 = 0x7fffffff, // 2^31 - 1 - POWS_TEN = [1, 10, 100, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10, 1e11, 1e12, 1e13], - SQRT_BASE = 1e7, - - /* - * The limit on the value of DECIMAL_PLACES, TO_EXP_NEG, TO_EXP_POS, MIN_EXP, MAX_EXP, and - * the arguments to toExponential, toFixed, toFormat, and toPrecision, beyond which an - * exception is thrown (if ERRORS is true). - */ - MAX = 1E9; // 0 to MAX_INT32 - - - /* - * Create and return a BigNumber constructor. - */ - function constructorFactory(config) { - var div, parseNumeric, - - // id tracks the caller function, so its name can be included in error messages. - id = 0, - P = BigNumber.prototype, - ONE = new BigNumber(1), - - - /********************************* EDITABLE DEFAULTS **********************************/ - - - /* - * The default values below must be integers within the inclusive ranges stated. - * The values can also be changed at run-time using BigNumber.config. - */ - - // The maximum number of decimal places for operations involving division. - DECIMAL_PLACES = 20, // 0 to MAX - - /* - * The rounding mode used when rounding to the above decimal places, and when using - * toExponential, toFixed, toFormat and toPrecision, and round (default value). - * UP 0 Away from zero. - * DOWN 1 Towards zero. - * CEIL 2 Towards +Infinity. - * FLOOR 3 Towards -Infinity. - * HALF_UP 4 Towards nearest neighbour. If equidistant, up. - * HALF_DOWN 5 Towards nearest neighbour. If equidistant, down. - * HALF_EVEN 6 Towards nearest neighbour. If equidistant, towards even neighbour. - * HALF_CEIL 7 Towards nearest neighbour. If equidistant, towards +Infinity. - * HALF_FLOOR 8 Towards nearest neighbour. If equidistant, towards -Infinity. - */ - ROUNDING_MODE = 4, // 0 to 8 - - // EXPONENTIAL_AT : [TO_EXP_NEG , TO_EXP_POS] - - // The exponent value at and beneath which toString returns exponential notation. - // Number type: -7 - TO_EXP_NEG = -7, // 0 to -MAX - - // The exponent value at and above which toString returns exponential notation. - // Number type: 21 - TO_EXP_POS = 21, // 0 to MAX - - // RANGE : [MIN_EXP, MAX_EXP] - - // The minimum exponent value, beneath which underflow to zero occurs. - // Number type: -324 (5e-324) - MIN_EXP = -1e7, // -1 to -MAX - - // The maximum exponent value, above which overflow to Infinity occurs. - // Number type: 308 (1.7976931348623157e+308) - // For MAX_EXP > 1e7, e.g. new BigNumber('1e100000000').plus(1) may be slow. - MAX_EXP = 1e7, // 1 to MAX - - // Whether BigNumber Errors are ever thrown. - ERRORS = true, // true or false - - // Change to intValidatorNoErrors if ERRORS is false. - isValidInt = intValidatorWithErrors, // intValidatorWithErrors/intValidatorNoErrors - - // Whether to use cryptographically-secure random number generation, if available. - CRYPTO = false, // true or false - - /* - * The modulo mode used when calculating the modulus: a mod n. - * The quotient (q = a / n) is calculated according to the corresponding rounding mode. - * The remainder (r) is calculated as: r = a - n * q. - * - * UP 0 The remainder is positive if the dividend is negative, else is negative. - * DOWN 1 The remainder has the same sign as the dividend. - * This modulo mode is commonly known as 'truncated division' and is - * equivalent to (a % n) in JavaScript. - * FLOOR 3 The remainder has the same sign as the divisor (Python %). - * HALF_EVEN 6 This modulo mode implements the IEEE 754 remainder function. - * EUCLID 9 Euclidian division. q = sign(n) * floor(a / abs(n)). - * The remainder is always positive. - * - * The truncated division, floored division, Euclidian division and IEEE 754 remainder - * modes are commonly used for the modulus operation. - * Although the other rounding modes can also be used, they may not give useful results. - */ - MODULO_MODE = 1, // 0 to 9 - - // The maximum number of significant digits of the result of the toPower operation. - // If POW_PRECISION is 0, there will be unlimited significant digits. - POW_PRECISION = 0, // 0 to MAX - - // The format specification used by the BigNumber.prototype.toFormat method. - FORMAT = { - decimalSeparator: '.', - groupSeparator: ',', - groupSize: 3, - secondaryGroupSize: 0, - fractionGroupSeparator: '\xA0', // non-breaking space - fractionGroupSize: 0 - }; - - - /******************************************************************************************/ - - - // CONSTRUCTOR - - - /* - * The BigNumber constructor and exported function. - * Create and return a new instance of a BigNumber object. - * - * n {number|string|BigNumber} A numeric value. - * [b] {number} The base of n. Integer, 2 to 64 inclusive. - */ - function BigNumber( n, b ) { - var c, e, i, num, len, str, - x = this; - - // Enable constructor usage without new. - if ( !( x instanceof BigNumber ) ) { - - // 'BigNumber() constructor call without new: {n}' - // See GitHub issue: #81. - //if (ERRORS) raise( 26, 'constructor call without new', n ); - return new BigNumber( n, b ); - } - - // 'new BigNumber() base not an integer: {b}' - // 'new BigNumber() base out of range: {b}' - if ( b == null || !isValidInt( b, 2, 64, id, 'base' ) ) { - - // Duplicate. - if ( n instanceof BigNumber ) { - x.s = n.s; - x.e = n.e; - x.c = ( n = n.c ) ? n.slice() : n; - id = 0; - return; - } - - if ( ( num = typeof n == 'number' ) && n * 0 == 0 ) { - x.s = 1 / n < 0 ? ( n = -n, -1 ) : 1; - - // Fast path for integers. - if ( n === ~~n ) { - for ( e = 0, i = n; i >= 10; i /= 10, e++ ); - x.e = e; - x.c = [n]; - id = 0; - return; - } - - str = n + ''; - } else { - if ( !isNumeric.test( str = n + '' ) ) return parseNumeric( x, str, num ); - x.s = str.charCodeAt(0) === 45 ? ( str = str.slice(1), -1 ) : 1; - } - } else { - b = b | 0; - str = n + ''; - - // Ensure return value is rounded to DECIMAL_PLACES as with other bases. - // Allow exponential notation to be used with base 10 argument. - if ( b == 10 ) { - x = new BigNumber( n instanceof BigNumber ? n : str ); - return round( x, DECIMAL_PLACES + x.e + 1, ROUNDING_MODE ); - } - - // Avoid potential interpretation of Infinity and NaN as base 44+ values. - // Any number in exponential form will fail due to the [Ee][+-]. - if ( ( num = typeof n == 'number' ) && n * 0 != 0 || - !( new RegExp( '^-?' + ( c = '[' + ALPHABET.slice( 0, b ) + ']+' ) + - '(?:\\.' + c + ')?$',b < 37 ? 'i' : '' ) ).test(str) ) { - return parseNumeric( x, str, num, b ); - } - - if (num) { - x.s = 1 / n < 0 ? ( str = str.slice(1), -1 ) : 1; - - if ( ERRORS && str.replace( /^0\.0*|\./, '' ).length > 15 ) { - - // 'new BigNumber() number type has more than 15 significant digits: {n}' - raise( id, tooManyDigits, n ); - } - - // Prevent later check for length on converted number. - num = false; - } else { - x.s = str.charCodeAt(0) === 45 ? ( str = str.slice(1), -1 ) : 1; - } - - str = convertBase( str, 10, b, x.s ); - } - - // Decimal point? - if ( ( e = str.indexOf('.') ) > -1 ) str = str.replace( '.', '' ); - - // Exponential form? - if ( ( i = str.search( /e/i ) ) > 0 ) { - - // Determine exponent. - if ( e < 0 ) e = i; - e += +str.slice( i + 1 ); - str = str.substring( 0, i ); - } else if ( e < 0 ) { - - // Integer. - e = str.length; - } - - // Determine leading zeros. - for ( i = 0; str.charCodeAt(i) === 48; i++ ); - - // Determine trailing zeros. - for ( len = str.length; str.charCodeAt(--len) === 48; ); - str = str.slice( i, len + 1 ); - - if (str) { - len = str.length; - - // Disallow numbers with over 15 significant digits if number type. - // 'new BigNumber() number type has more than 15 significant digits: {n}' - if ( num && ERRORS && len > 15 && ( n > MAX_SAFE_INTEGER || n !== mathfloor(n) ) ) { - raise( id, tooManyDigits, x.s * n ); - } - - e = e - i - 1; - - // Overflow? - if ( e > MAX_EXP ) { - - // Infinity. - x.c = x.e = null; - - // Underflow? - } else if ( e < MIN_EXP ) { - - // Zero. - x.c = [ x.e = 0 ]; - } else { - x.e = e; - x.c = []; - - // Transform base - - // e is the base 10 exponent. - // i is where to slice str to get the first element of the coefficient array. - i = ( e + 1 ) % LOG_BASE; - if ( e < 0 ) i += LOG_BASE; - - if ( i < len ) { - if (i) x.c.push( +str.slice( 0, i ) ); - - for ( len -= LOG_BASE; i < len; ) { - x.c.push( +str.slice( i, i += LOG_BASE ) ); - } - - str = str.slice(i); - i = LOG_BASE - str.length; - } else { - i -= len; - } - - for ( ; i--; str += '0' ); - x.c.push( +str ); - } - } else { - - // Zero. - x.c = [ x.e = 0 ]; - } - - id = 0; - } - - - // CONSTRUCTOR PROPERTIES - - - BigNumber.another = constructorFactory; - - BigNumber.ROUND_UP = 0; - BigNumber.ROUND_DOWN = 1; - BigNumber.ROUND_CEIL = 2; - BigNumber.ROUND_FLOOR = 3; - BigNumber.ROUND_HALF_UP = 4; - BigNumber.ROUND_HALF_DOWN = 5; - BigNumber.ROUND_HALF_EVEN = 6; - BigNumber.ROUND_HALF_CEIL = 7; - BigNumber.ROUND_HALF_FLOOR = 8; - BigNumber.EUCLID = 9; - - - /* - * Configure infrequently-changing library-wide settings. - * - * Accept an object or an argument list, with one or many of the following properties or - * parameters respectively: - * - * DECIMAL_PLACES {number} Integer, 0 to MAX inclusive - * ROUNDING_MODE {number} Integer, 0 to 8 inclusive - * EXPONENTIAL_AT {number|number[]} Integer, -MAX to MAX inclusive or - * [integer -MAX to 0 incl., 0 to MAX incl.] - * RANGE {number|number[]} Non-zero integer, -MAX to MAX inclusive or - * [integer -MAX to -1 incl., integer 1 to MAX incl.] - * ERRORS {boolean|number} true, false, 1 or 0 - * CRYPTO {boolean|number} true, false, 1 or 0 - * MODULO_MODE {number} 0 to 9 inclusive - * POW_PRECISION {number} 0 to MAX inclusive - * FORMAT {object} See BigNumber.prototype.toFormat - * decimalSeparator {string} - * groupSeparator {string} - * groupSize {number} - * secondaryGroupSize {number} - * fractionGroupSeparator {string} - * fractionGroupSize {number} - * - * (The values assigned to the above FORMAT object properties are not checked for validity.) - * - * E.g. - * BigNumber.config(20, 4) is equivalent to - * BigNumber.config({ DECIMAL_PLACES : 20, ROUNDING_MODE : 4 }) - * - * Ignore properties/parameters set to null or undefined. - * Return an object with the properties current values. - */ - BigNumber.config = BigNumber.set = function () { - var v, p, - i = 0, - r = {}, - a = arguments, - o = a[0], - has = o && typeof o == 'object' - ? function () { if ( o.hasOwnProperty(p) ) return ( v = o[p] ) != null; } - : function () { if ( a.length > i ) return ( v = a[i++] ) != null; }; - - // DECIMAL_PLACES {number} Integer, 0 to MAX inclusive. - // 'config() DECIMAL_PLACES not an integer: {v}' - // 'config() DECIMAL_PLACES out of range: {v}' - if ( has( p = 'DECIMAL_PLACES' ) && isValidInt( v, 0, MAX, 2, p ) ) { - DECIMAL_PLACES = v | 0; - } - r[p] = DECIMAL_PLACES; - - // ROUNDING_MODE {number} Integer, 0 to 8 inclusive. - // 'config() ROUNDING_MODE not an integer: {v}' - // 'config() ROUNDING_MODE out of range: {v}' - if ( has( p = 'ROUNDING_MODE' ) && isValidInt( v, 0, 8, 2, p ) ) { - ROUNDING_MODE = v | 0; - } - r[p] = ROUNDING_MODE; - - // EXPONENTIAL_AT {number|number[]} - // Integer, -MAX to MAX inclusive or [integer -MAX to 0 inclusive, 0 to MAX inclusive]. - // 'config() EXPONENTIAL_AT not an integer: {v}' - // 'config() EXPONENTIAL_AT out of range: {v}' - if ( has( p = 'EXPONENTIAL_AT' ) ) { - - if ( isArray(v) ) { - if ( isValidInt( v[0], -MAX, 0, 2, p ) && isValidInt( v[1], 0, MAX, 2, p ) ) { - TO_EXP_NEG = v[0] | 0; - TO_EXP_POS = v[1] | 0; - } - } else if ( isValidInt( v, -MAX, MAX, 2, p ) ) { - TO_EXP_NEG = -( TO_EXP_POS = ( v < 0 ? -v : v ) | 0 ); - } - } - r[p] = [ TO_EXP_NEG, TO_EXP_POS ]; - - // RANGE {number|number[]} Non-zero integer, -MAX to MAX inclusive or - // [integer -MAX to -1 inclusive, integer 1 to MAX inclusive]. - // 'config() RANGE not an integer: {v}' - // 'config() RANGE cannot be zero: {v}' - // 'config() RANGE out of range: {v}' - if ( has( p = 'RANGE' ) ) { - - if ( isArray(v) ) { - if ( isValidInt( v[0], -MAX, -1, 2, p ) && isValidInt( v[1], 1, MAX, 2, p ) ) { - MIN_EXP = v[0] | 0; - MAX_EXP = v[1] | 0; - } - } else if ( isValidInt( v, -MAX, MAX, 2, p ) ) { - if ( v | 0 ) MIN_EXP = -( MAX_EXP = ( v < 0 ? -v : v ) | 0 ); - else if (ERRORS) raise( 2, p + ' cannot be zero', v ); - } - } - r[p] = [ MIN_EXP, MAX_EXP ]; - - // ERRORS {boolean|number} true, false, 1 or 0. - // 'config() ERRORS not a boolean or binary digit: {v}' - if ( has( p = 'ERRORS' ) ) { - - if ( v === !!v || v === 1 || v === 0 ) { - id = 0; - isValidInt = ( ERRORS = !!v ) ? intValidatorWithErrors : intValidatorNoErrors; - } else if (ERRORS) { - raise( 2, p + notBool, v ); - } - } - r[p] = ERRORS; - - // CRYPTO {boolean|number} true, false, 1 or 0. - // 'config() CRYPTO not a boolean or binary digit: {v}' - // 'config() crypto unavailable: {crypto}' - if ( has( p = 'CRYPTO' ) ) { - - if ( v === true || v === false || v === 1 || v === 0 ) { - if (v) { - v = typeof crypto == 'undefined'; - if ( !v && crypto && (crypto.getRandomValues || crypto.randomBytes)) { - CRYPTO = true; - } else if (ERRORS) { - raise( 2, 'crypto unavailable', v ? void 0 : crypto ); - } else { - CRYPTO = false; - } - } else { - CRYPTO = false; - } - } else if (ERRORS) { - raise( 2, p + notBool, v ); - } - } - r[p] = CRYPTO; - - // MODULO_MODE {number} Integer, 0 to 9 inclusive. - // 'config() MODULO_MODE not an integer: {v}' - // 'config() MODULO_MODE out of range: {v}' - if ( has( p = 'MODULO_MODE' ) && isValidInt( v, 0, 9, 2, p ) ) { - MODULO_MODE = v | 0; - } - r[p] = MODULO_MODE; - - // POW_PRECISION {number} Integer, 0 to MAX inclusive. - // 'config() POW_PRECISION not an integer: {v}' - // 'config() POW_PRECISION out of range: {v}' - if ( has( p = 'POW_PRECISION' ) && isValidInt( v, 0, MAX, 2, p ) ) { - POW_PRECISION = v | 0; - } - r[p] = POW_PRECISION; - - // FORMAT {object} - // 'config() FORMAT not an object: {v}' - if ( has( p = 'FORMAT' ) ) { - - if ( typeof v == 'object' ) { - FORMAT = v; - } else if (ERRORS) { - raise( 2, p + ' not an object', v ); - } - } - r[p] = FORMAT; - - return r; - }; - - - /* - * Return a new BigNumber whose value is the maximum of the arguments. - * - * arguments {number|string|BigNumber} - */ - BigNumber.max = function () { return maxOrMin( arguments, P.lt ); }; - - - /* - * Return a new BigNumber whose value is the minimum of the arguments. - * - * arguments {number|string|BigNumber} - */ - BigNumber.min = function () { return maxOrMin( arguments, P.gt ); }; - - - /* - * Return a new BigNumber with a random value equal to or greater than 0 and less than 1, - * and with dp, or DECIMAL_PLACES if dp is omitted, decimal places (or less if trailing - * zeros are produced). - * - * [dp] {number} Decimal places. Integer, 0 to MAX inclusive. - * - * 'random() decimal places not an integer: {dp}' - * 'random() decimal places out of range: {dp}' - * 'random() crypto unavailable: {crypto}' - */ - BigNumber.random = (function () { - var pow2_53 = 0x20000000000000; - - // Return a 53 bit integer n, where 0 <= n < 9007199254740992. - // Check if Math.random() produces more than 32 bits of randomness. - // If it does, assume at least 53 bits are produced, otherwise assume at least 30 bits. - // 0x40000000 is 2^30, 0x800000 is 2^23, 0x1fffff is 2^21 - 1. - var random53bitInt = (Math.random() * pow2_53) & 0x1fffff - ? function () { return mathfloor( Math.random() * pow2_53 ); } - : function () { return ((Math.random() * 0x40000000 | 0) * 0x800000) + - (Math.random() * 0x800000 | 0); }; - - return function (dp) { - var a, b, e, k, v, - i = 0, - c = [], - rand = new BigNumber(ONE); - - dp = dp == null || !isValidInt( dp, 0, MAX, 14 ) ? DECIMAL_PLACES : dp | 0; - k = mathceil( dp / LOG_BASE ); - - if (CRYPTO) { - - // Browsers supporting crypto.getRandomValues. - if (crypto.getRandomValues) { - - a = crypto.getRandomValues( new Uint32Array( k *= 2 ) ); - - for ( ; i < k; ) { - - // 53 bits: - // ((Math.pow(2, 32) - 1) * Math.pow(2, 21)).toString(2) - // 11111 11111111 11111111 11111111 11100000 00000000 00000000 - // ((Math.pow(2, 32) - 1) >>> 11).toString(2) - // 11111 11111111 11111111 - // 0x20000 is 2^21. - v = a[i] * 0x20000 + (a[i + 1] >>> 11); - - // Rejection sampling: - // 0 <= v < 9007199254740992 - // Probability that v >= 9e15, is - // 7199254740992 / 9007199254740992 ~= 0.0008, i.e. 1 in 1251 - if ( v >= 9e15 ) { - b = crypto.getRandomValues( new Uint32Array(2) ); - a[i] = b[0]; - a[i + 1] = b[1]; - } else { - - // 0 <= v <= 8999999999999999 - // 0 <= (v % 1e14) <= 99999999999999 - c.push( v % 1e14 ); - i += 2; - } - } - i = k / 2; - - // Node.js supporting crypto.randomBytes. - } else if (crypto.randomBytes) { - - // buffer - a = crypto.randomBytes( k *= 7 ); - - for ( ; i < k; ) { - - // 0x1000000000000 is 2^48, 0x10000000000 is 2^40 - // 0x100000000 is 2^32, 0x1000000 is 2^24 - // 11111 11111111 11111111 11111111 11111111 11111111 11111111 - // 0 <= v < 9007199254740992 - v = ( ( a[i] & 31 ) * 0x1000000000000 ) + ( a[i + 1] * 0x10000000000 ) + - ( a[i + 2] * 0x100000000 ) + ( a[i + 3] * 0x1000000 ) + - ( a[i + 4] << 16 ) + ( a[i + 5] << 8 ) + a[i + 6]; - - if ( v >= 9e15 ) { - crypto.randomBytes(7).copy( a, i ); - } else { - - // 0 <= (v % 1e14) <= 99999999999999 - c.push( v % 1e14 ); - i += 7; - } - } - i = k / 7; - } else { - CRYPTO = false; - if (ERRORS) raise( 14, 'crypto unavailable', crypto ); - } - } - - // Use Math.random. - if (!CRYPTO) { - - for ( ; i < k; ) { - v = random53bitInt(); - if ( v < 9e15 ) c[i++] = v % 1e14; - } - } - - k = c[--i]; - dp %= LOG_BASE; - - // Convert trailing digits to zeros according to dp. - if ( k && dp ) { - v = POWS_TEN[LOG_BASE - dp]; - c[i] = mathfloor( k / v ) * v; - } - - // Remove trailing elements which are zero. - for ( ; c[i] === 0; c.pop(), i-- ); - - // Zero? - if ( i < 0 ) { - c = [ e = 0 ]; - } else { - - // Remove leading elements which are zero and adjust exponent accordingly. - for ( e = -1 ; c[0] === 0; c.splice(0, 1), e -= LOG_BASE); - - // Count the digits of the first element of c to determine leading zeros, and... - for ( i = 1, v = c[0]; v >= 10; v /= 10, i++); - - // adjust the exponent accordingly. - if ( i < LOG_BASE ) e -= LOG_BASE - i; - } - - rand.e = e; - rand.c = c; - return rand; - }; - })(); - - - // PRIVATE FUNCTIONS - - - // Convert a numeric string of baseIn to a numeric string of baseOut. - function convertBase( str, baseOut, baseIn, sign ) { - var d, e, k, r, x, xc, y, - i = str.indexOf( '.' ), - dp = DECIMAL_PLACES, - rm = ROUNDING_MODE; - - if ( baseIn < 37 ) str = str.toLowerCase(); - - // Non-integer. - if ( i >= 0 ) { - k = POW_PRECISION; - - // Unlimited precision. - POW_PRECISION = 0; - str = str.replace( '.', '' ); - y = new BigNumber(baseIn); - x = y.pow( str.length - i ); - POW_PRECISION = k; - - // Convert str as if an integer, then restore the fraction part by dividing the - // result by its base raised to a power. - y.c = toBaseOut( toFixedPoint( coeffToString( x.c ), x.e ), 10, baseOut ); - y.e = y.c.length; - } - - // Convert the number as integer. - xc = toBaseOut( str, baseIn, baseOut ); - e = k = xc.length; - - // Remove trailing zeros. - for ( ; xc[--k] == 0; xc.pop() ); - if ( !xc[0] ) return '0'; - - if ( i < 0 ) { - --e; - } else { - x.c = xc; - x.e = e; - - // sign is needed for correct rounding. - x.s = sign; - x = div( x, y, dp, rm, baseOut ); - xc = x.c; - r = x.r; - e = x.e; - } - - d = e + dp + 1; - - // The rounding digit, i.e. the digit to the right of the digit that may be rounded up. - i = xc[d]; - k = baseOut / 2; - r = r || d < 0 || xc[d + 1] != null; - - r = rm < 4 ? ( i != null || r ) && ( rm == 0 || rm == ( x.s < 0 ? 3 : 2 ) ) - : i > k || i == k &&( rm == 4 || r || rm == 6 && xc[d - 1] & 1 || - rm == ( x.s < 0 ? 8 : 7 ) ); - - if ( d < 1 || !xc[0] ) { - - // 1^-dp or 0. - str = r ? toFixedPoint( '1', -dp ) : '0'; - } else { - xc.length = d; - - if (r) { - - // Rounding up may mean the previous digit has to be rounded up and so on. - for ( --baseOut; ++xc[--d] > baseOut; ) { - xc[d] = 0; - - if ( !d ) { - ++e; - xc = [1].concat(xc); - } - } - } - - // Determine trailing zeros. - for ( k = xc.length; !xc[--k]; ); - - // E.g. [4, 11, 15] becomes 4bf. - for ( i = 0, str = ''; i <= k; str += ALPHABET.charAt( xc[i++] ) ); - str = toFixedPoint( str, e ); - } - - // The caller will add the sign. - return str; - } - - - // Perform division in the specified base. Called by div and convertBase. - div = (function () { - - // Assume non-zero x and k. - function multiply( x, k, base ) { - var m, temp, xlo, xhi, - carry = 0, - i = x.length, - klo = k % SQRT_BASE, - khi = k / SQRT_BASE | 0; - - for ( x = x.slice(); i--; ) { - xlo = x[i] % SQRT_BASE; - xhi = x[i] / SQRT_BASE | 0; - m = khi * xlo + xhi * klo; - temp = klo * xlo + ( ( m % SQRT_BASE ) * SQRT_BASE ) + carry; - carry = ( temp / base | 0 ) + ( m / SQRT_BASE | 0 ) + khi * xhi; - x[i] = temp % base; - } - - if (carry) x = [carry].concat(x); - - return x; - } - - function compare( a, b, aL, bL ) { - var i, cmp; - - if ( aL != bL ) { - cmp = aL > bL ? 1 : -1; - } else { - - for ( i = cmp = 0; i < aL; i++ ) { - - if ( a[i] != b[i] ) { - cmp = a[i] > b[i] ? 1 : -1; - break; - } - } - } - return cmp; - } - - function subtract( a, b, aL, base ) { - var i = 0; - - // Subtract b from a. - for ( ; aL--; ) { - a[aL] -= i; - i = a[aL] < b[aL] ? 1 : 0; - a[aL] = i * base + a[aL] - b[aL]; - } - - // Remove leading zeros. - for ( ; !a[0] && a.length > 1; a.splice(0, 1) ); - } - - // x: dividend, y: divisor. - return function ( x, y, dp, rm, base ) { - var cmp, e, i, more, n, prod, prodL, q, qc, rem, remL, rem0, xi, xL, yc0, - yL, yz, - s = x.s == y.s ? 1 : -1, - xc = x.c, - yc = y.c; - - // Either NaN, Infinity or 0? - if ( !xc || !xc[0] || !yc || !yc[0] ) { - - return new BigNumber( - - // Return NaN if either NaN, or both Infinity or 0. - !x.s || !y.s || ( xc ? yc && xc[0] == yc[0] : !yc ) ? NaN : - - // Return ±0 if x is ±0 or y is ±Infinity, or return ±Infinity as y is ±0. - xc && xc[0] == 0 || !yc ? s * 0 : s / 0 - ); - } - - q = new BigNumber(s); - qc = q.c = []; - e = x.e - y.e; - s = dp + e + 1; - - if ( !base ) { - base = BASE; - e = bitFloor( x.e / LOG_BASE ) - bitFloor( y.e / LOG_BASE ); - s = s / LOG_BASE | 0; - } - - // Result exponent may be one less then the current value of e. - // The coefficients of the BigNumbers from convertBase may have trailing zeros. - for ( i = 0; yc[i] == ( xc[i] || 0 ); i++ ); - if ( yc[i] > ( xc[i] || 0 ) ) e--; - - if ( s < 0 ) { - qc.push(1); - more = true; - } else { - xL = xc.length; - yL = yc.length; - i = 0; - s += 2; - - // Normalise xc and yc so highest order digit of yc is >= base / 2. - - n = mathfloor( base / ( yc[0] + 1 ) ); - - // Not necessary, but to handle odd bases where yc[0] == ( base / 2 ) - 1. - // if ( n > 1 || n++ == 1 && yc[0] < base / 2 ) { - if ( n > 1 ) { - yc = multiply( yc, n, base ); - xc = multiply( xc, n, base ); - yL = yc.length; - xL = xc.length; - } - - xi = yL; - rem = xc.slice( 0, yL ); - remL = rem.length; - - // Add zeros to make remainder as long as divisor. - for ( ; remL < yL; rem[remL++] = 0 ); - yz = yc.slice(); - yz = [0].concat(yz); - yc0 = yc[0]; - if ( yc[1] >= base / 2 ) yc0++; - // Not necessary, but to prevent trial digit n > base, when using base 3. - // else if ( base == 3 && yc0 == 1 ) yc0 = 1 + 1e-15; - - do { - n = 0; - - // Compare divisor and remainder. - cmp = compare( yc, rem, yL, remL ); - - // If divisor < remainder. - if ( cmp < 0 ) { - - // Calculate trial digit, n. - - rem0 = rem[0]; - if ( yL != remL ) rem0 = rem0 * base + ( rem[1] || 0 ); - - // n is how many times the divisor goes into the current remainder. - n = mathfloor( rem0 / yc0 ); - - // Algorithm: - // 1. product = divisor * trial digit (n) - // 2. if product > remainder: product -= divisor, n-- - // 3. remainder -= product - // 4. if product was < remainder at 2: - // 5. compare new remainder and divisor - // 6. If remainder > divisor: remainder -= divisor, n++ - - if ( n > 1 ) { - - // n may be > base only when base is 3. - if (n >= base) n = base - 1; - - // product = divisor * trial digit. - prod = multiply( yc, n, base ); - prodL = prod.length; - remL = rem.length; - - // Compare product and remainder. - // If product > remainder. - // Trial digit n too high. - // n is 1 too high about 5% of the time, and is not known to have - // ever been more than 1 too high. - while ( compare( prod, rem, prodL, remL ) == 1 ) { - n--; - - // Subtract divisor from product. - subtract( prod, yL < prodL ? yz : yc, prodL, base ); - prodL = prod.length; - cmp = 1; - } - } else { - - // n is 0 or 1, cmp is -1. - // If n is 0, there is no need to compare yc and rem again below, - // so change cmp to 1 to avoid it. - // If n is 1, leave cmp as -1, so yc and rem are compared again. - if ( n == 0 ) { - - // divisor < remainder, so n must be at least 1. - cmp = n = 1; - } - - // product = divisor - prod = yc.slice(); - prodL = prod.length; - } - - if ( prodL < remL ) prod = [0].concat(prod); - - // Subtract product from remainder. - subtract( rem, prod, remL, base ); - remL = rem.length; - - // If product was < remainder. - if ( cmp == -1 ) { - - // Compare divisor and new remainder. - // If divisor < new remainder, subtract divisor from remainder. - // Trial digit n too low. - // n is 1 too low about 5% of the time, and very rarely 2 too low. - while ( compare( yc, rem, yL, remL ) < 1 ) { - n++; - - // Subtract divisor from remainder. - subtract( rem, yL < remL ? yz : yc, remL, base ); - remL = rem.length; - } - } - } else if ( cmp === 0 ) { - n++; - rem = [0]; - } // else cmp === 1 and n will be 0 - - // Add the next digit, n, to the result array. - qc[i++] = n; - - // Update the remainder. - if ( rem[0] ) { - rem[remL++] = xc[xi] || 0; - } else { - rem = [ xc[xi] ]; - remL = 1; - } - } while ( ( xi++ < xL || rem[0] != null ) && s-- ); - - more = rem[0] != null; - - // Leading zero? - if ( !qc[0] ) qc.splice(0, 1); - } - - if ( base == BASE ) { - - // To calculate q.e, first get the number of digits of qc[0]. - for ( i = 1, s = qc[0]; s >= 10; s /= 10, i++ ); - round( q, dp + ( q.e = i + e * LOG_BASE - 1 ) + 1, rm, more ); - - // Caller is convertBase. - } else { - q.e = e; - q.r = +more; - } - - return q; - }; - })(); - - - /* - * Return a string representing the value of BigNumber n in fixed-point or exponential - * notation rounded to the specified decimal places or significant digits. - * - * n is a BigNumber. - * i is the index of the last digit required (i.e. the digit that may be rounded up). - * rm is the rounding mode. - * caller is caller id: toExponential 19, toFixed 20, toFormat 21, toPrecision 24. - */ - function format( n, i, rm, caller ) { - var c0, e, ne, len, str; - - rm = rm != null && isValidInt( rm, 0, 8, caller, roundingMode ) - ? rm | 0 : ROUNDING_MODE; - - if ( !n.c ) return n.toString(); - c0 = n.c[0]; - ne = n.e; - - if ( i == null ) { - str = coeffToString( n.c ); - str = caller == 19 || caller == 24 && ne <= TO_EXP_NEG - ? toExponential( str, ne ) - : toFixedPoint( str, ne ); - } else { - n = round( new BigNumber(n), i, rm ); - - // n.e may have changed if the value was rounded up. - e = n.e; - - str = coeffToString( n.c ); - len = str.length; - - // toPrecision returns exponential notation if the number of significant digits - // specified is less than the number of digits necessary to represent the integer - // part of the value in fixed-point notation. - - // Exponential notation. - if ( caller == 19 || caller == 24 && ( i <= e || e <= TO_EXP_NEG ) ) { - - // Append zeros? - for ( ; len < i; str += '0', len++ ); - str = toExponential( str, e ); - - // Fixed-point notation. - } else { - i -= ne; - str = toFixedPoint( str, e ); - - // Append zeros? - if ( e + 1 > len ) { - if ( --i > 0 ) for ( str += '.'; i--; str += '0' ); - } else { - i += e - len; - if ( i > 0 ) { - if ( e + 1 == len ) str += '.'; - for ( ; i--; str += '0' ); - } - } - } - } - - return n.s < 0 && c0 ? '-' + str : str; - } - - - // Handle BigNumber.max and BigNumber.min. - function maxOrMin( args, method ) { - var m, n, - i = 0; - - if ( isArray( args[0] ) ) args = args[0]; - m = new BigNumber( args[0] ); - - for ( ; ++i < args.length; ) { - n = new BigNumber( args[i] ); - - // If any number is NaN, return NaN. - if ( !n.s ) { - m = n; - break; - } else if ( method.call( m, n ) ) { - m = n; - } - } - - return m; - } - - - /* - * Return true if n is an integer in range, otherwise throw. - * Use for argument validation when ERRORS is true. - */ - function intValidatorWithErrors( n, min, max, caller, name ) { - if ( n < min || n > max || n != truncate(n) ) { - raise( caller, ( name || 'decimal places' ) + - ( n < min || n > max ? ' out of range' : ' not an integer' ), n ); - } - - return true; - } - - - /* - * Strip trailing zeros, calculate base 10 exponent and check against MIN_EXP and MAX_EXP. - * Called by minus, plus and times. - */ - function normalise( n, c, e ) { - var i = 1, - j = c.length; - - // Remove trailing zeros. - for ( ; !c[--j]; c.pop() ); - - // Calculate the base 10 exponent. First get the number of digits of c[0]. - for ( j = c[0]; j >= 10; j /= 10, i++ ); - - // Overflow? - if ( ( e = i + e * LOG_BASE - 1 ) > MAX_EXP ) { - - // Infinity. - n.c = n.e = null; - - // Underflow? - } else if ( e < MIN_EXP ) { - - // Zero. - n.c = [ n.e = 0 ]; - } else { - n.e = e; - n.c = c; - } - - return n; - } - - - // Handle values that fail the validity test in BigNumber. - parseNumeric = (function () { - var basePrefix = /^(-?)0([xbo])(?=\w[\w.]*$)/i, - dotAfter = /^([^.]+)\.$/, - dotBefore = /^\.([^.]+)$/, - isInfinityOrNaN = /^-?(Infinity|NaN)$/, - whitespaceOrPlus = /^\s*\+(?=[\w.])|^\s+|\s+$/g; - - return function ( x, str, num, b ) { - var base, - s = num ? str : str.replace( whitespaceOrPlus, '' ); - - // No exception on ±Infinity or NaN. - if ( isInfinityOrNaN.test(s) ) { - x.s = isNaN(s) ? null : s < 0 ? -1 : 1; - } else { - if ( !num ) { - - // basePrefix = /^(-?)0([xbo])(?=\w[\w.]*$)/i - s = s.replace( basePrefix, function ( m, p1, p2 ) { - base = ( p2 = p2.toLowerCase() ) == 'x' ? 16 : p2 == 'b' ? 2 : 8; - return !b || b == base ? p1 : m; - }); - - if (b) { - base = b; - - // E.g. '1.' to '1', '.1' to '0.1' - s = s.replace( dotAfter, '$1' ).replace( dotBefore, '0.$1' ); - } - - if ( str != s ) return new BigNumber( s, base ); - } - - // 'new BigNumber() not a number: {n}' - // 'new BigNumber() not a base {b} number: {n}' - if (ERRORS) raise( id, 'not a' + ( b ? ' base ' + b : '' ) + ' number', str ); - x.s = null; - } - - x.c = x.e = null; - id = 0; - } - })(); - - - // Throw a BigNumber Error. - function raise( caller, msg, val ) { - var error = new Error( [ - 'new BigNumber', // 0 - 'cmp', // 1 - 'config', // 2 - 'div', // 3 - 'divToInt', // 4 - 'eq', // 5 - 'gt', // 6 - 'gte', // 7 - 'lt', // 8 - 'lte', // 9 - 'minus', // 10 - 'mod', // 11 - 'plus', // 12 - 'precision', // 13 - 'random', // 14 - 'round', // 15 - 'shift', // 16 - 'times', // 17 - 'toDigits', // 18 - 'toExponential', // 19 - 'toFixed', // 20 - 'toFormat', // 21 - 'toFraction', // 22 - 'pow', // 23 - 'toPrecision', // 24 - 'toString', // 25 - 'BigNumber' // 26 - ][caller] + '() ' + msg + ': ' + val ); - - error.name = 'BigNumber Error'; - id = 0; - throw error; - } - - - /* - * Round x to sd significant digits using rounding mode rm. Check for over/under-flow. - * If r is truthy, it is known that there are more digits after the rounding digit. - */ - function round( x, sd, rm, r ) { - var d, i, j, k, n, ni, rd, - xc = x.c, - pows10 = POWS_TEN; - - // if x is not Infinity or NaN... - if (xc) { - - // rd is the rounding digit, i.e. the digit after the digit that may be rounded up. - // n is a base 1e14 number, the value of the element of array x.c containing rd. - // ni is the index of n within x.c. - // d is the number of digits of n. - // i is the index of rd within n including leading zeros. - // j is the actual index of rd within n (if < 0, rd is a leading zero). - out: { - - // Get the number of digits of the first element of xc. - for ( d = 1, k = xc[0]; k >= 10; k /= 10, d++ ); - i = sd - d; - - // If the rounding digit is in the first element of xc... - if ( i < 0 ) { - i += LOG_BASE; - j = sd; - n = xc[ ni = 0 ]; - - // Get the rounding digit at index j of n. - rd = n / pows10[ d - j - 1 ] % 10 | 0; - } else { - ni = mathceil( ( i + 1 ) / LOG_BASE ); - - if ( ni >= xc.length ) { - - if (r) { - - // Needed by sqrt. - for ( ; xc.length <= ni; xc.push(0) ); - n = rd = 0; - d = 1; - i %= LOG_BASE; - j = i - LOG_BASE + 1; - } else { - break out; - } - } else { - n = k = xc[ni]; - - // Get the number of digits of n. - for ( d = 1; k >= 10; k /= 10, d++ ); - - // Get the index of rd within n. - i %= LOG_BASE; - - // Get the index of rd within n, adjusted for leading zeros. - // The number of leading zeros of n is given by LOG_BASE - d. - j = i - LOG_BASE + d; - - // Get the rounding digit at index j of n. - rd = j < 0 ? 0 : n / pows10[ d - j - 1 ] % 10 | 0; - } - } - - r = r || sd < 0 || - - // Are there any non-zero digits after the rounding digit? - // The expression n % pows10[ d - j - 1 ] returns all digits of n to the right - // of the digit at j, e.g. if n is 908714 and j is 2, the expression gives 714. - xc[ni + 1] != null || ( j < 0 ? n : n % pows10[ d - j - 1 ] ); - - r = rm < 4 - ? ( rd || r ) && ( rm == 0 || rm == ( x.s < 0 ? 3 : 2 ) ) - : rd > 5 || rd == 5 && ( rm == 4 || r || rm == 6 && - - // Check whether the digit to the left of the rounding digit is odd. - ( ( i > 0 ? j > 0 ? n / pows10[ d - j ] : 0 : xc[ni - 1] ) % 10 ) & 1 || - rm == ( x.s < 0 ? 8 : 7 ) ); - - if ( sd < 1 || !xc[0] ) { - xc.length = 0; - - if (r) { - - // Convert sd to decimal places. - sd -= x.e + 1; - - // 1, 0.1, 0.01, 0.001, 0.0001 etc. - xc[0] = pows10[ ( LOG_BASE - sd % LOG_BASE ) % LOG_BASE ]; - x.e = -sd || 0; - } else { - - // Zero. - xc[0] = x.e = 0; - } - - return x; - } - - // Remove excess digits. - if ( i == 0 ) { - xc.length = ni; - k = 1; - ni--; - } else { - xc.length = ni + 1; - k = pows10[ LOG_BASE - i ]; - - // E.g. 56700 becomes 56000 if 7 is the rounding digit. - // j > 0 means i > number of leading zeros of n. - xc[ni] = j > 0 ? mathfloor( n / pows10[ d - j ] % pows10[j] ) * k : 0; - } - - // Round up? - if (r) { - - for ( ; ; ) { - - // If the digit to be rounded up is in the first element of xc... - if ( ni == 0 ) { - - // i will be the length of xc[0] before k is added. - for ( i = 1, j = xc[0]; j >= 10; j /= 10, i++ ); - j = xc[0] += k; - for ( k = 1; j >= 10; j /= 10, k++ ); - - // if i != k the length has increased. - if ( i != k ) { - x.e++; - if ( xc[0] == BASE ) xc[0] = 1; - } - - break; - } else { - xc[ni] += k; - if ( xc[ni] != BASE ) break; - xc[ni--] = 0; - k = 1; - } - } - } - - // Remove trailing zeros. - for ( i = xc.length; xc[--i] === 0; xc.pop() ); - } - - // Overflow? Infinity. - if ( x.e > MAX_EXP ) { - x.c = x.e = null; - - // Underflow? Zero. - } else if ( x.e < MIN_EXP ) { - x.c = [ x.e = 0 ]; - } - } - - return x; - } - - - // PROTOTYPE/INSTANCE METHODS - - - /* - * Return a new BigNumber whose value is the absolute value of this BigNumber. - */ - P.absoluteValue = P.abs = function () { - var x = new BigNumber(this); - if ( x.s < 0 ) x.s = 1; - return x; - }; - - - /* - * Return a new BigNumber whose value is the value of this BigNumber rounded to a whole - * number in the direction of Infinity. - */ - P.ceil = function () { - return round( new BigNumber(this), this.e + 1, 2 ); - }; - - - /* - * Return - * 1 if the value of this BigNumber is greater than the value of BigNumber(y, b), - * -1 if the value of this BigNumber is less than the value of BigNumber(y, b), - * 0 if they have the same value, - * or null if the value of either is NaN. - */ - P.comparedTo = P.cmp = function ( y, b ) { - id = 1; - return compare( this, new BigNumber( y, b ) ); - }; - - - /* - * Return the number of decimal places of the value of this BigNumber, or null if the value - * of this BigNumber is ±Infinity or NaN. - */ - P.decimalPlaces = P.dp = function () { - var n, v, - c = this.c; - - if ( !c ) return null; - n = ( ( v = c.length - 1 ) - bitFloor( this.e / LOG_BASE ) ) * LOG_BASE; - - // Subtract the number of trailing zeros of the last number. - if ( v = c[v] ) for ( ; v % 10 == 0; v /= 10, n-- ); - if ( n < 0 ) n = 0; - - return n; - }; - - - /* - * n / 0 = I - * n / N = N - * n / I = 0 - * 0 / n = 0 - * 0 / 0 = N - * 0 / N = N - * 0 / I = 0 - * N / n = N - * N / 0 = N - * N / N = N - * N / I = N - * I / n = I - * I / 0 = I - * I / N = N - * I / I = N - * - * Return a new BigNumber whose value is the value of this BigNumber divided by the value of - * BigNumber(y, b), rounded according to DECIMAL_PLACES and ROUNDING_MODE. - */ - P.dividedBy = P.div = function ( y, b ) { - id = 3; - return div( this, new BigNumber( y, b ), DECIMAL_PLACES, ROUNDING_MODE ); - }; - - - /* - * Return a new BigNumber whose value is the integer part of dividing the value of this - * BigNumber by the value of BigNumber(y, b). - */ - P.dividedToIntegerBy = P.divToInt = function ( y, b ) { - id = 4; - return div( this, new BigNumber( y, b ), 0, 1 ); - }; - - - /* - * Return true if the value of this BigNumber is equal to the value of BigNumber(y, b), - * otherwise returns false. - */ - P.equals = P.eq = function ( y, b ) { - id = 5; - return compare( this, new BigNumber( y, b ) ) === 0; - }; - - - /* - * Return a new BigNumber whose value is the value of this BigNumber rounded to a whole - * number in the direction of -Infinity. - */ - P.floor = function () { - return round( new BigNumber(this), this.e + 1, 3 ); - }; - - - /* - * Return true if the value of this BigNumber is greater than the value of BigNumber(y, b), - * otherwise returns false. - */ - P.greaterThan = P.gt = function ( y, b ) { - id = 6; - return compare( this, new BigNumber( y, b ) ) > 0; - }; - - - /* - * Return true if the value of this BigNumber is greater than or equal to the value of - * BigNumber(y, b), otherwise returns false. - */ - P.greaterThanOrEqualTo = P.gte = function ( y, b ) { - id = 7; - return ( b = compare( this, new BigNumber( y, b ) ) ) === 1 || b === 0; - - }; - - - /* - * Return true if the value of this BigNumber is a finite number, otherwise returns false. - */ - P.isFinite = function () { - return !!this.c; - }; - - - /* - * Return true if the value of this BigNumber is an integer, otherwise return false. - */ - P.isInteger = P.isInt = function () { - return !!this.c && bitFloor( this.e / LOG_BASE ) > this.c.length - 2; - }; - - - /* - * Return true if the value of this BigNumber is NaN, otherwise returns false. - */ - P.isNaN = function () { - return !this.s; - }; - - - /* - * Return true if the value of this BigNumber is negative, otherwise returns false. - */ - P.isNegative = P.isNeg = function () { - return this.s < 0; - }; - - - /* - * Return true if the value of this BigNumber is 0 or -0, otherwise returns false. - */ - P.isZero = function () { - return !!this.c && this.c[0] == 0; - }; - - - /* - * Return true if the value of this BigNumber is less than the value of BigNumber(y, b), - * otherwise returns false. - */ - P.lessThan = P.lt = function ( y, b ) { - id = 8; - return compare( this, new BigNumber( y, b ) ) < 0; - }; - - - /* - * Return true if the value of this BigNumber is less than or equal to the value of - * BigNumber(y, b), otherwise returns false. - */ - P.lessThanOrEqualTo = P.lte = function ( y, b ) { - id = 9; - return ( b = compare( this, new BigNumber( y, b ) ) ) === -1 || b === 0; - }; - - - /* - * n - 0 = n - * n - N = N - * n - I = -I - * 0 - n = -n - * 0 - 0 = 0 - * 0 - N = N - * 0 - I = -I - * N - n = N - * N - 0 = N - * N - N = N - * N - I = N - * I - n = I - * I - 0 = I - * I - N = N - * I - I = N - * - * Return a new BigNumber whose value is the value of this BigNumber minus the value of - * BigNumber(y, b). - */ - P.minus = P.sub = function ( y, b ) { - var i, j, t, xLTy, - x = this, - a = x.s; - - id = 10; - y = new BigNumber( y, b ); - b = y.s; - - // Either NaN? - if ( !a || !b ) return new BigNumber(NaN); - - // Signs differ? - if ( a != b ) { - y.s = -b; - return x.plus(y); - } - - var xe = x.e / LOG_BASE, - ye = y.e / LOG_BASE, - xc = x.c, - yc = y.c; - - if ( !xe || !ye ) { - - // Either Infinity? - if ( !xc || !yc ) return xc ? ( y.s = -b, y ) : new BigNumber( yc ? x : NaN ); - - // Either zero? - if ( !xc[0] || !yc[0] ) { - - // Return y if y is non-zero, x if x is non-zero, or zero if both are zero. - return yc[0] ? ( y.s = -b, y ) : new BigNumber( xc[0] ? x : - - // IEEE 754 (2008) 6.3: n - n = -0 when rounding to -Infinity - ROUNDING_MODE == 3 ? -0 : 0 ); - } - } - - xe = bitFloor(xe); - ye = bitFloor(ye); - xc = xc.slice(); - - // Determine which is the bigger number. - if ( a = xe - ye ) { - - if ( xLTy = a < 0 ) { - a = -a; - t = xc; - } else { - ye = xe; - t = yc; - } - - t.reverse(); - - // Prepend zeros to equalise exponents. - for ( b = a; b--; t.push(0) ); - t.reverse(); - } else { - - // Exponents equal. Check digit by digit. - j = ( xLTy = ( a = xc.length ) < ( b = yc.length ) ) ? a : b; - - for ( a = b = 0; b < j; b++ ) { - - if ( xc[b] != yc[b] ) { - xLTy = xc[b] < yc[b]; - break; - } - } - } - - // x < y? Point xc to the array of the bigger number. - if (xLTy) t = xc, xc = yc, yc = t, y.s = -y.s; - - b = ( j = yc.length ) - ( i = xc.length ); - - // Append zeros to xc if shorter. - // No need to add zeros to yc if shorter as subtract only needs to start at yc.length. - if ( b > 0 ) for ( ; b--; xc[i++] = 0 ); - b = BASE - 1; - - // Subtract yc from xc. - for ( ; j > a; ) { - - if ( xc[--j] < yc[j] ) { - for ( i = j; i && !xc[--i]; xc[i] = b ); - --xc[i]; - xc[j] += BASE; - } - - xc[j] -= yc[j]; - } - - // Remove leading zeros and adjust exponent accordingly. - for ( ; xc[0] == 0; xc.splice(0, 1), --ye ); - - // Zero? - if ( !xc[0] ) { - - // Following IEEE 754 (2008) 6.3, - // n - n = +0 but n - n = -0 when rounding towards -Infinity. - y.s = ROUNDING_MODE == 3 ? -1 : 1; - y.c = [ y.e = 0 ]; - return y; - } - - // No need to check for Infinity as +x - +y != Infinity && -x - -y != Infinity - // for finite x and y. - return normalise( y, xc, ye ); - }; - - - /* - * n % 0 = N - * n % N = N - * n % I = n - * 0 % n = 0 - * -0 % n = -0 - * 0 % 0 = N - * 0 % N = N - * 0 % I = 0 - * N % n = N - * N % 0 = N - * N % N = N - * N % I = N - * I % n = N - * I % 0 = N - * I % N = N - * I % I = N - * - * Return a new BigNumber whose value is the value of this BigNumber modulo the value of - * BigNumber(y, b). The result depends on the value of MODULO_MODE. - */ - P.modulo = P.mod = function ( y, b ) { - var q, s, - x = this; - - id = 11; - y = new BigNumber( y, b ); - - // Return NaN if x is Infinity or NaN, or y is NaN or zero. - if ( !x.c || !y.s || y.c && !y.c[0] ) { - return new BigNumber(NaN); - - // Return x if y is Infinity or x is zero. - } else if ( !y.c || x.c && !x.c[0] ) { - return new BigNumber(x); - } - - if ( MODULO_MODE == 9 ) { - - // Euclidian division: q = sign(y) * floor(x / abs(y)) - // r = x - qy where 0 <= r < abs(y) - s = y.s; - y.s = 1; - q = div( x, y, 0, 3 ); - y.s = s; - q.s *= s; - } else { - q = div( x, y, 0, MODULO_MODE ); - } - - return x.minus( q.times(y) ); - }; - - - /* - * Return a new BigNumber whose value is the value of this BigNumber negated, - * i.e. multiplied by -1. - */ - P.negated = P.neg = function () { - var x = new BigNumber(this); - x.s = -x.s || null; - return x; - }; - - - /* - * n + 0 = n - * n + N = N - * n + I = I - * 0 + n = n - * 0 + 0 = 0 - * 0 + N = N - * 0 + I = I - * N + n = N - * N + 0 = N - * N + N = N - * N + I = N - * I + n = I - * I + 0 = I - * I + N = N - * I + I = I - * - * Return a new BigNumber whose value is the value of this BigNumber plus the value of - * BigNumber(y, b). - */ - P.plus = P.add = function ( y, b ) { - var t, - x = this, - a = x.s; - - id = 12; - y = new BigNumber( y, b ); - b = y.s; - - // Either NaN? - if ( !a || !b ) return new BigNumber(NaN); - - // Signs differ? - if ( a != b ) { - y.s = -b; - return x.minus(y); - } - - var xe = x.e / LOG_BASE, - ye = y.e / LOG_BASE, - xc = x.c, - yc = y.c; - - if ( !xe || !ye ) { - - // Return ±Infinity if either ±Infinity. - if ( !xc || !yc ) return new BigNumber( a / 0 ); - - // Either zero? - // Return y if y is non-zero, x if x is non-zero, or zero if both are zero. - if ( !xc[0] || !yc[0] ) return yc[0] ? y : new BigNumber( xc[0] ? x : a * 0 ); - } - - xe = bitFloor(xe); - ye = bitFloor(ye); - xc = xc.slice(); - - // Prepend zeros to equalise exponents. Faster to use reverse then do unshifts. - if ( a = xe - ye ) { - if ( a > 0 ) { - ye = xe; - t = yc; - } else { - a = -a; - t = xc; - } - - t.reverse(); - for ( ; a--; t.push(0) ); - t.reverse(); - } - - a = xc.length; - b = yc.length; - - // Point xc to the longer array, and b to the shorter length. - if ( a - b < 0 ) t = yc, yc = xc, xc = t, b = a; - - // Only start adding at yc.length - 1 as the further digits of xc can be ignored. - for ( a = 0; b; ) { - a = ( xc[--b] = xc[b] + yc[b] + a ) / BASE | 0; - xc[b] = BASE === xc[b] ? 0 : xc[b] % BASE; - } - - if (a) { - xc = [a].concat(xc); - ++ye; - } - - // No need to check for zero, as +x + +y != 0 && -x + -y != 0 - // ye = MAX_EXP + 1 possible - return normalise( y, xc, ye ); - }; - - - /* - * Return the number of significant digits of the value of this BigNumber. - * - * [z] {boolean|number} Whether to count integer-part trailing zeros: true, false, 1 or 0. - */ - P.precision = P.sd = function (z) { - var n, v, - x = this, - c = x.c; - - // 'precision() argument not a boolean or binary digit: {z}' - if ( z != null && z !== !!z && z !== 1 && z !== 0 ) { - if (ERRORS) raise( 13, 'argument' + notBool, z ); - if ( z != !!z ) z = null; - } - - if ( !c ) return null; - v = c.length - 1; - n = v * LOG_BASE + 1; - - if ( v = c[v] ) { - - // Subtract the number of trailing zeros of the last element. - for ( ; v % 10 == 0; v /= 10, n-- ); - - // Add the number of digits of the first element. - for ( v = c[0]; v >= 10; v /= 10, n++ ); - } - - if ( z && x.e + 1 > n ) n = x.e + 1; - - return n; - }; - - - /* - * Return a new BigNumber whose value is the value of this BigNumber rounded to a maximum of - * dp decimal places using rounding mode rm, or to 0 and ROUNDING_MODE respectively if - * omitted. - * - * [dp] {number} Decimal places. Integer, 0 to MAX inclusive. - * [rm] {number} Rounding mode. Integer, 0 to 8 inclusive. - * - * 'round() decimal places out of range: {dp}' - * 'round() decimal places not an integer: {dp}' - * 'round() rounding mode not an integer: {rm}' - * 'round() rounding mode out of range: {rm}' - */ - P.round = function ( dp, rm ) { - var n = new BigNumber(this); - - if ( dp == null || isValidInt( dp, 0, MAX, 15 ) ) { - round( n, ~~dp + this.e + 1, rm == null || - !isValidInt( rm, 0, 8, 15, roundingMode ) ? ROUNDING_MODE : rm | 0 ); - } - - return n; - }; - - - /* - * Return a new BigNumber whose value is the value of this BigNumber shifted by k places - * (powers of 10). Shift to the right if n > 0, and to the left if n < 0. - * - * k {number} Integer, -MAX_SAFE_INTEGER to MAX_SAFE_INTEGER inclusive. - * - * If k is out of range and ERRORS is false, the result will be ±0 if k < 0, or ±Infinity - * otherwise. - * - * 'shift() argument not an integer: {k}' - * 'shift() argument out of range: {k}' - */ - P.shift = function (k) { - var n = this; - return isValidInt( k, -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER, 16, 'argument' ) - - // k < 1e+21, or truncate(k) will produce exponential notation. - ? n.times( '1e' + truncate(k) ) - : new BigNumber( n.c && n.c[0] && ( k < -MAX_SAFE_INTEGER || k > MAX_SAFE_INTEGER ) - ? n.s * ( k < 0 ? 0 : 1 / 0 ) - : n ); - }; - - - /* - * sqrt(-n) = N - * sqrt( N) = N - * sqrt(-I) = N - * sqrt( I) = I - * sqrt( 0) = 0 - * sqrt(-0) = -0 - * - * Return a new BigNumber whose value is the square root of the value of this BigNumber, - * rounded according to DECIMAL_PLACES and ROUNDING_MODE. - */ - P.squareRoot = P.sqrt = function () { - var m, n, r, rep, t, - x = this, - c = x.c, - s = x.s, - e = x.e, - dp = DECIMAL_PLACES + 4, - half = new BigNumber('0.5'); - - // Negative/NaN/Infinity/zero? - if ( s !== 1 || !c || !c[0] ) { - return new BigNumber( !s || s < 0 && ( !c || c[0] ) ? NaN : c ? x : 1 / 0 ); - } - - // Initial estimate. - s = Math.sqrt( +x ); - - // Math.sqrt underflow/overflow? - // Pass x to Math.sqrt as integer, then adjust the exponent of the result. - if ( s == 0 || s == 1 / 0 ) { - n = coeffToString(c); - if ( ( n.length + e ) % 2 == 0 ) n += '0'; - s = Math.sqrt(n); - e = bitFloor( ( e + 1 ) / 2 ) - ( e < 0 || e % 2 ); - - if ( s == 1 / 0 ) { - n = '1e' + e; - } else { - n = s.toExponential(); - n = n.slice( 0, n.indexOf('e') + 1 ) + e; - } - - r = new BigNumber(n); - } else { - r = new BigNumber( s + '' ); - } - - // Check for zero. - // r could be zero if MIN_EXP is changed after the this value was created. - // This would cause a division by zero (x/t) and hence Infinity below, which would cause - // coeffToString to throw. - if ( r.c[0] ) { - e = r.e; - s = e + dp; - if ( s < 3 ) s = 0; - - // Newton-Raphson iteration. - for ( ; ; ) { - t = r; - r = half.times( t.plus( div( x, t, dp, 1 ) ) ); - - if ( coeffToString( t.c ).slice( 0, s ) === ( n = - coeffToString( r.c ) ).slice( 0, s ) ) { - - // The exponent of r may here be one less than the final result exponent, - // e.g 0.0009999 (e-4) --> 0.001 (e-3), so adjust s so the rounding digits - // are indexed correctly. - if ( r.e < e ) --s; - n = n.slice( s - 3, s + 1 ); - - // The 4th rounding digit may be in error by -1 so if the 4 rounding digits - // are 9999 or 4999 (i.e. approaching a rounding boundary) continue the - // iteration. - if ( n == '9999' || !rep && n == '4999' ) { - - // On the first iteration only, check to see if rounding up gives the - // exact result as the nines may infinitely repeat. - if ( !rep ) { - round( t, t.e + DECIMAL_PLACES + 2, 0 ); - - if ( t.times(t).eq(x) ) { - r = t; - break; - } - } - - dp += 4; - s += 4; - rep = 1; - } else { - - // If rounding digits are null, 0{0,4} or 50{0,3}, check for exact - // result. If not, then there are further digits and m will be truthy. - if ( !+n || !+n.slice(1) && n.charAt(0) == '5' ) { - - // Truncate to the first rounding digit. - round( r, r.e + DECIMAL_PLACES + 2, 1 ); - m = !r.times(r).eq(x); - } - - break; - } - } - } - } - - return round( r, r.e + DECIMAL_PLACES + 1, ROUNDING_MODE, m ); - }; - - - /* - * n * 0 = 0 - * n * N = N - * n * I = I - * 0 * n = 0 - * 0 * 0 = 0 - * 0 * N = N - * 0 * I = N - * N * n = N - * N * 0 = N - * N * N = N - * N * I = N - * I * n = I - * I * 0 = N - * I * N = N - * I * I = I - * - * Return a new BigNumber whose value is the value of this BigNumber times the value of - * BigNumber(y, b). - */ - P.times = P.mul = function ( y, b ) { - var c, e, i, j, k, m, xcL, xlo, xhi, ycL, ylo, yhi, zc, - base, sqrtBase, - x = this, - xc = x.c, - yc = ( id = 17, y = new BigNumber( y, b ) ).c; - - // Either NaN, ±Infinity or ±0? - if ( !xc || !yc || !xc[0] || !yc[0] ) { - - // Return NaN if either is NaN, or one is 0 and the other is Infinity. - if ( !x.s || !y.s || xc && !xc[0] && !yc || yc && !yc[0] && !xc ) { - y.c = y.e = y.s = null; - } else { - y.s *= x.s; - - // Return ±Infinity if either is ±Infinity. - if ( !xc || !yc ) { - y.c = y.e = null; - - // Return ±0 if either is ±0. - } else { - y.c = [0]; - y.e = 0; - } - } - - return y; - } - - e = bitFloor( x.e / LOG_BASE ) + bitFloor( y.e / LOG_BASE ); - y.s *= x.s; - xcL = xc.length; - ycL = yc.length; - - // Ensure xc points to longer array and xcL to its length. - if ( xcL < ycL ) zc = xc, xc = yc, yc = zc, i = xcL, xcL = ycL, ycL = i; - - // Initialise the result array with zeros. - for ( i = xcL + ycL, zc = []; i--; zc.push(0) ); - - base = BASE; - sqrtBase = SQRT_BASE; - - for ( i = ycL; --i >= 0; ) { - c = 0; - ylo = yc[i] % sqrtBase; - yhi = yc[i] / sqrtBase | 0; - - for ( k = xcL, j = i + k; j > i; ) { - xlo = xc[--k] % sqrtBase; - xhi = xc[k] / sqrtBase | 0; - m = yhi * xlo + xhi * ylo; - xlo = ylo * xlo + ( ( m % sqrtBase ) * sqrtBase ) + zc[j] + c; - c = ( xlo / base | 0 ) + ( m / sqrtBase | 0 ) + yhi * xhi; - zc[j--] = xlo % base; - } - - zc[j] = c; - } - - if (c) { - ++e; - } else { - zc.splice(0, 1); - } - - return normalise( y, zc, e ); - }; - - - /* - * Return a new BigNumber whose value is the value of this BigNumber rounded to a maximum of - * sd significant digits using rounding mode rm, or ROUNDING_MODE if rm is omitted. - * - * [sd] {number} Significant digits. Integer, 1 to MAX inclusive. - * [rm] {number} Rounding mode. Integer, 0 to 8 inclusive. - * - * 'toDigits() precision out of range: {sd}' - * 'toDigits() precision not an integer: {sd}' - * 'toDigits() rounding mode not an integer: {rm}' - * 'toDigits() rounding mode out of range: {rm}' - */ - P.toDigits = function ( sd, rm ) { - var n = new BigNumber(this); - sd = sd == null || !isValidInt( sd, 1, MAX, 18, 'precision' ) ? null : sd | 0; - rm = rm == null || !isValidInt( rm, 0, 8, 18, roundingMode ) ? ROUNDING_MODE : rm | 0; - return sd ? round( n, sd, rm ) : n; - }; - - - /* - * Return a string representing the value of this BigNumber in exponential notation and - * rounded using ROUNDING_MODE to dp fixed decimal places. - * - * [dp] {number} Decimal places. Integer, 0 to MAX inclusive. - * [rm] {number} Rounding mode. Integer, 0 to 8 inclusive. - * - * 'toExponential() decimal places not an integer: {dp}' - * 'toExponential() decimal places out of range: {dp}' - * 'toExponential() rounding mode not an integer: {rm}' - * 'toExponential() rounding mode out of range: {rm}' - */ - P.toExponential = function ( dp, rm ) { - return format( this, - dp != null && isValidInt( dp, 0, MAX, 19 ) ? ~~dp + 1 : null, rm, 19 ); - }; - - - /* - * Return a string representing the value of this BigNumber in fixed-point notation rounding - * to dp fixed decimal places using rounding mode rm, or ROUNDING_MODE if rm is omitted. - * - * Note: as with JavaScript's number type, (-0).toFixed(0) is '0', - * but e.g. (-0.00001).toFixed(0) is '-0'. - * - * [dp] {number} Decimal places. Integer, 0 to MAX inclusive. - * [rm] {number} Rounding mode. Integer, 0 to 8 inclusive. - * - * 'toFixed() decimal places not an integer: {dp}' - * 'toFixed() decimal places out of range: {dp}' - * 'toFixed() rounding mode not an integer: {rm}' - * 'toFixed() rounding mode out of range: {rm}' - */ - P.toFixed = function ( dp, rm ) { - return format( this, dp != null && isValidInt( dp, 0, MAX, 20 ) - ? ~~dp + this.e + 1 : null, rm, 20 ); - }; - - - /* - * Return a string representing the value of this BigNumber in fixed-point notation rounded - * using rm or ROUNDING_MODE to dp decimal places, and formatted according to the properties - * of the FORMAT object (see BigNumber.config). - * - * FORMAT = { - * decimalSeparator : '.', - * groupSeparator : ',', - * groupSize : 3, - * secondaryGroupSize : 0, - * fractionGroupSeparator : '\xA0', // non-breaking space - * fractionGroupSize : 0 - * }; - * - * [dp] {number} Decimal places. Integer, 0 to MAX inclusive. - * [rm] {number} Rounding mode. Integer, 0 to 8 inclusive. - * - * 'toFormat() decimal places not an integer: {dp}' - * 'toFormat() decimal places out of range: {dp}' - * 'toFormat() rounding mode not an integer: {rm}' - * 'toFormat() rounding mode out of range: {rm}' - */ - P.toFormat = function ( dp, rm ) { - var str = format( this, dp != null && isValidInt( dp, 0, MAX, 21 ) - ? ~~dp + this.e + 1 : null, rm, 21 ); - - if ( this.c ) { - var i, - arr = str.split('.'), - g1 = +FORMAT.groupSize, - g2 = +FORMAT.secondaryGroupSize, - groupSeparator = FORMAT.groupSeparator, - intPart = arr[0], - fractionPart = arr[1], - isNeg = this.s < 0, - intDigits = isNeg ? intPart.slice(1) : intPart, - len = intDigits.length; - - if (g2) i = g1, g1 = g2, g2 = i, len -= i; - - if ( g1 > 0 && len > 0 ) { - i = len % g1 || g1; - intPart = intDigits.substr( 0, i ); - - for ( ; i < len; i += g1 ) { - intPart += groupSeparator + intDigits.substr( i, g1 ); - } - - if ( g2 > 0 ) intPart += groupSeparator + intDigits.slice(i); - if (isNeg) intPart = '-' + intPart; - } - - str = fractionPart - ? intPart + FORMAT.decimalSeparator + ( ( g2 = +FORMAT.fractionGroupSize ) - ? fractionPart.replace( new RegExp( '\\d{' + g2 + '}\\B', 'g' ), - '$&' + FORMAT.fractionGroupSeparator ) - : fractionPart ) - : intPart; - } - - return str; - }; - - - /* - * Return a string array representing the value of this BigNumber as a simple fraction with - * an integer numerator and an integer denominator. The denominator will be a positive - * non-zero value less than or equal to the specified maximum denominator. If a maximum - * denominator is not specified, the denominator will be the lowest value necessary to - * represent the number exactly. - * - * [md] {number|string|BigNumber} Integer >= 1 and < Infinity. The maximum denominator. - * - * 'toFraction() max denominator not an integer: {md}' - * 'toFraction() max denominator out of range: {md}' - */ - P.toFraction = function (md) { - var arr, d0, d2, e, exp, n, n0, q, s, - k = ERRORS, - x = this, - xc = x.c, - d = new BigNumber(ONE), - n1 = d0 = new BigNumber(ONE), - d1 = n0 = new BigNumber(ONE); - - if ( md != null ) { - ERRORS = false; - n = new BigNumber(md); - ERRORS = k; - - if ( !( k = n.isInt() ) || n.lt(ONE) ) { - - if (ERRORS) { - raise( 22, - 'max denominator ' + ( k ? 'out of range' : 'not an integer' ), md ); - } - - // ERRORS is false: - // If md is a finite non-integer >= 1, round it to an integer and use it. - md = !k && n.c && round( n, n.e + 1, 1 ).gte(ONE) ? n : null; - } - } - - if ( !xc ) return x.toString(); - s = coeffToString(xc); - - // Determine initial denominator. - // d is a power of 10 and the minimum max denominator that specifies the value exactly. - e = d.e = s.length - x.e - 1; - d.c[0] = POWS_TEN[ ( exp = e % LOG_BASE ) < 0 ? LOG_BASE + exp : exp ]; - md = !md || n.cmp(d) > 0 ? ( e > 0 ? d : n1 ) : n; - - exp = MAX_EXP; - MAX_EXP = 1 / 0; - n = new BigNumber(s); - - // n0 = d1 = 0 - n0.c[0] = 0; - - for ( ; ; ) { - q = div( n, d, 0, 1 ); - d2 = d0.plus( q.times(d1) ); - if ( d2.cmp(md) == 1 ) break; - d0 = d1; - d1 = d2; - n1 = n0.plus( q.times( d2 = n1 ) ); - n0 = d2; - d = n.minus( q.times( d2 = d ) ); - n = d2; - } - - d2 = div( md.minus(d0), d1, 0, 1 ); - n0 = n0.plus( d2.times(n1) ); - d0 = d0.plus( d2.times(d1) ); - n0.s = n1.s = x.s; - e *= 2; - - // Determine which fraction is closer to x, n0/d0 or n1/d1 - arr = div( n1, d1, e, ROUNDING_MODE ).minus(x).abs().cmp( - div( n0, d0, e, ROUNDING_MODE ).minus(x).abs() ) < 1 - ? [ n1.toString(), d1.toString() ] - : [ n0.toString(), d0.toString() ]; - - MAX_EXP = exp; - return arr; - }; - - - /* - * Return the value of this BigNumber converted to a number primitive. - */ - P.toNumber = function () { - return +this; - }; - - - /* - * Return a BigNumber whose value is the value of this BigNumber raised to the power n. - * If m is present, return the result modulo m. - * If n is negative round according to DECIMAL_PLACES and ROUNDING_MODE. - * If POW_PRECISION is non-zero and m is not present, round to POW_PRECISION using - * ROUNDING_MODE. - * - * The modular power operation works efficiently when x, n, and m are positive integers, - * otherwise it is equivalent to calculating x.toPower(n).modulo(m) (with POW_PRECISION 0). - * - * n {number} Integer, -MAX_SAFE_INTEGER to MAX_SAFE_INTEGER inclusive. - * [m] {number|string|BigNumber} The modulus. - * - * 'pow() exponent not an integer: {n}' - * 'pow() exponent out of range: {n}' - * - * Performs 54 loop iterations for n of 9007199254740991. - */ - P.toPower = P.pow = function ( n, m ) { - var k, y, z, - i = mathfloor( n < 0 ? -n : +n ), - x = this; - - if ( m != null ) { - id = 23; - m = new BigNumber(m); - } - - // Pass ±Infinity to Math.pow if exponent is out of range. - if ( !isValidInt( n, -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER, 23, 'exponent' ) && - ( !isFinite(n) || i > MAX_SAFE_INTEGER && ( n /= 0 ) || - parseFloat(n) != n && !( n = NaN ) ) || n == 0 ) { - k = Math.pow( +x, n ); - return new BigNumber( m ? k % m : k ); - } - - if (m) { - if ( n > 1 && x.gt(ONE) && x.isInt() && m.gt(ONE) && m.isInt() ) { - x = x.mod(m); - } else { - z = m; - - // Nullify m so only a single mod operation is performed at the end. - m = null; - } - } else if (POW_PRECISION) { - - // Truncating each coefficient array to a length of k after each multiplication - // equates to truncating significant digits to POW_PRECISION + [28, 41], - // i.e. there will be a minimum of 28 guard digits retained. - // (Using + 1.5 would give [9, 21] guard digits.) - k = mathceil( POW_PRECISION / LOG_BASE + 2 ); - } - - y = new BigNumber(ONE); - - for ( ; ; ) { - if ( i % 2 ) { - y = y.times(x); - if ( !y.c ) break; - if (k) { - if ( y.c.length > k ) y.c.length = k; - } else if (m) { - y = y.mod(m); - } - } - - i = mathfloor( i / 2 ); - if ( !i ) break; - x = x.times(x); - if (k) { - if ( x.c && x.c.length > k ) x.c.length = k; - } else if (m) { - x = x.mod(m); - } - } - - if (m) return y; - if ( n < 0 ) y = ONE.div(y); - - return z ? y.mod(z) : k ? round( y, POW_PRECISION, ROUNDING_MODE ) : y; - }; - - - /* - * Return a string representing the value of this BigNumber rounded to sd significant digits - * using rounding mode rm or ROUNDING_MODE. If sd is less than the number of digits - * necessary to represent the integer part of the value in fixed-point notation, then use - * exponential notation. - * - * [sd] {number} Significant digits. Integer, 1 to MAX inclusive. - * [rm] {number} Rounding mode. Integer, 0 to 8 inclusive. - * - * 'toPrecision() precision not an integer: {sd}' - * 'toPrecision() precision out of range: {sd}' - * 'toPrecision() rounding mode not an integer: {rm}' - * 'toPrecision() rounding mode out of range: {rm}' - */ - P.toPrecision = function ( sd, rm ) { - return format( this, sd != null && isValidInt( sd, 1, MAX, 24, 'precision' ) - ? sd | 0 : null, rm, 24 ); - }; - - - /* - * Return a string representing the value of this BigNumber in base b, or base 10 if b is - * omitted. If a base is specified, including base 10, round according to DECIMAL_PLACES and - * ROUNDING_MODE. If a base is not specified, and this BigNumber has a positive exponent - * that is equal to or greater than TO_EXP_POS, or a negative exponent equal to or less than - * TO_EXP_NEG, return exponential notation. - * - * [b] {number} Integer, 2 to 64 inclusive. - * - * 'toString() base not an integer: {b}' - * 'toString() base out of range: {b}' - */ - P.toString = function (b) { - var str, - n = this, - s = n.s, - e = n.e; - - // Infinity or NaN? - if ( e === null ) { - - if (s) { - str = 'Infinity'; - if ( s < 0 ) str = '-' + str; - } else { - str = 'NaN'; - } - } else { - str = coeffToString( n.c ); - - if ( b == null || !isValidInt( b, 2, 64, 25, 'base' ) ) { - str = e <= TO_EXP_NEG || e >= TO_EXP_POS - ? toExponential( str, e ) - : toFixedPoint( str, e ); - } else { - str = convertBase( toFixedPoint( str, e ), b | 0, 10, s ); - } - - if ( s < 0 && n.c[0] ) str = '-' + str; - } - - return str; - }; - - - /* - * Return a new BigNumber whose value is the value of this BigNumber truncated to a whole - * number. - */ - P.truncated = P.trunc = function () { - return round( new BigNumber(this), this.e + 1, 1 ); - }; - - - /* - * Return as toString, but do not accept a base argument, and include the minus sign for - * negative zero. - */ - P.valueOf = P.toJSON = function () { - var str, - n = this, - e = n.e; - - if ( e === null ) return n.toString(); - - str = coeffToString( n.c ); - - str = e <= TO_EXP_NEG || e >= TO_EXP_POS - ? toExponential( str, e ) - : toFixedPoint( str, e ); - - return n.s < 0 ? '-' + str : str; - }; - - - P.isBigNumber = true; - - if ( config != null ) BigNumber.config(config); - - return BigNumber; - } - - - // PRIVATE HELPER FUNCTIONS - - - function bitFloor(n) { - var i = n | 0; - return n > 0 || n === i ? i : i - 1; - } - - - // Return a coefficient array as a string of base 10 digits. - function coeffToString(a) { - var s, z, - i = 1, - j = a.length, - r = a[0] + ''; - - for ( ; i < j; ) { - s = a[i++] + ''; - z = LOG_BASE - s.length; - for ( ; z--; s = '0' + s ); - r += s; - } - - // Determine trailing zeros. - for ( j = r.length; r.charCodeAt(--j) === 48; ); - return r.slice( 0, j + 1 || 1 ); - } - - - // Compare the value of BigNumbers x and y. - function compare( x, y ) { - var a, b, - xc = x.c, - yc = y.c, - i = x.s, - j = y.s, - k = x.e, - l = y.e; - - // Either NaN? - if ( !i || !j ) return null; - - a = xc && !xc[0]; - b = yc && !yc[0]; - - // Either zero? - if ( a || b ) return a ? b ? 0 : -j : i; - - // Signs differ? - if ( i != j ) return i; - - a = i < 0; - b = k == l; - - // Either Infinity? - if ( !xc || !yc ) return b ? 0 : !xc ^ a ? 1 : -1; - - // Compare exponents. - if ( !b ) return k > l ^ a ? 1 : -1; - - j = ( k = xc.length ) < ( l = yc.length ) ? k : l; - - // Compare digit by digit. - for ( i = 0; i < j; i++ ) if ( xc[i] != yc[i] ) return xc[i] > yc[i] ^ a ? 1 : -1; - - // Compare lengths. - return k == l ? 0 : k > l ^ a ? 1 : -1; - } - - - /* - * Return true if n is a valid number in range, otherwise false. - * Use for argument validation when ERRORS is false. - * Note: parseInt('1e+1') == 1 but parseFloat('1e+1') == 10. - */ - function intValidatorNoErrors( n, min, max ) { - return ( n = truncate(n) ) >= min && n <= max; - } - - - function isArray(obj) { - return Object.prototype.toString.call(obj) == '[object Array]'; - } - - - /* - * Convert string of baseIn to an array of numbers of baseOut. - * Eg. convertBase('255', 10, 16) returns [15, 15]. - * Eg. convertBase('ff', 16, 10) returns [2, 5, 5]. - */ - function toBaseOut( str, baseIn, baseOut ) { - var j, - arr = [0], - arrL, - i = 0, - len = str.length; - - for ( ; i < len; ) { - for ( arrL = arr.length; arrL--; arr[arrL] *= baseIn ); - arr[ j = 0 ] += ALPHABET.indexOf( str.charAt( i++ ) ); - - for ( ; j < arr.length; j++ ) { - - if ( arr[j] > baseOut - 1 ) { - if ( arr[j + 1] == null ) arr[j + 1] = 0; - arr[j + 1] += arr[j] / baseOut | 0; - arr[j] %= baseOut; - } - } - } - - return arr.reverse(); - } - - - function toExponential( str, e ) { - return ( str.length > 1 ? str.charAt(0) + '.' + str.slice(1) : str ) + - ( e < 0 ? 'e' : 'e+' ) + e; - } - - - function toFixedPoint( str, e ) { - var len, z; - - // Negative exponent? - if ( e < 0 ) { - - // Prepend zeros. - for ( z = '0.'; ++e; z += '0' ); - str = z + str; - - // Positive exponent - } else { - len = str.length; - - // Append zeros. - if ( ++e > len ) { - for ( z = '0', e -= len; --e; z += '0' ); - str += z; - } else if ( e < len ) { - str = str.slice( 0, e ) + '.' + str.slice(e); - } - } - - return str; - } - - - function truncate(n) { - n = parseFloat(n); - return n < 0 ? mathceil(n) : mathfloor(n); - } - - - // EXPORT - - - BigNumber = constructorFactory(); - BigNumber['default'] = BigNumber.BigNumber = BigNumber; - - - // AMD. - if ( typeof define == 'function' && define.amd ) { - define( function () { return BigNumber; } ); - - // Node.js and other environments that support module.exports. - } else if ( typeof module != 'undefined' && module.exports ) { - module.exports = BigNumber; - - // Browser. - } else { - if ( !globalObj ) globalObj = typeof self != 'undefined' ? self : Function('return this')(); - globalObj.BigNumber = BigNumber; - } -})(this); - -},{}],66:[function(require,module,exports){ -var aes = require('browserify-aes') -var assert = require('assert') -var Buffer = require('safe-buffer').Buffer -var bs58check = require('bs58check') -var createHash = require('create-hash') -var scrypt = require('scryptsy') -var xor = require('buffer-xor/inplace') - -var ecurve = require('ecurve') -var curve = ecurve.getCurveByName('secp256k1') - -var BigInteger = require('bigi') - -// constants -var SCRYPT_PARAMS = { - N: 16384, // specified by BIP38 - r: 8, - p: 8 -} -var NULL = Buffer.alloc(0) - -function hash160 (buffer) { - return createHash('rmd160').update( - createHash('sha256').update(buffer).digest() - ).digest() -} - -function hash256 (buffer) { - return createHash('sha256').update( - createHash('sha256').update(buffer).digest() - ).digest() -} - -function getAddress (d, compressed) { - var Q = curve.G.multiply(d).getEncoded(compressed) - var hash = hash160(Q) - var payload = Buffer.allocUnsafe(21) - payload.writeUInt8(0x00, 0) // XXX TODO FIXME bitcoin only??? damn you BIP38 - hash.copy(payload, 1) - - return bs58check.encode(payload) -} - -function encryptRaw (buffer, compressed, passphrase, progressCallback, scryptParams) { - if (buffer.length !== 32) throw new Error('Invalid private key length') - scryptParams = scryptParams || SCRYPT_PARAMS - - var d = BigInteger.fromBuffer(buffer) - var address = getAddress(d, compressed) - var secret = Buffer.from(passphrase, 'utf8') - var salt = hash256(address).slice(0, 4) - - var N = scryptParams.N - var r = scryptParams.r - var p = scryptParams.p - - var scryptBuf = scrypt(secret, salt, N, r, p, 64, progressCallback) - var derivedHalf1 = scryptBuf.slice(0, 32) - var derivedHalf2 = scryptBuf.slice(32, 64) - - var xorBuf = xor(derivedHalf1, buffer) - var cipher = aes.createCipheriv('aes-256-ecb', derivedHalf2, NULL) - cipher.setAutoPadding(false) - cipher.end(xorBuf) - - var cipherText = cipher.read() - - // 0x01 | 0x42 | flagByte | salt (4) | cipherText (32) - var result = Buffer.allocUnsafe(7 + 32) - result.writeUInt8(0x01, 0) - result.writeUInt8(0x42, 1) - result.writeUInt8(compressed ? 0xe0 : 0xc0, 2) - salt.copy(result, 3) - cipherText.copy(result, 7) - - return result -} - -function encrypt (buffer, compressed, passphrase, progressCallback, scryptParams) { - return bs58check.encode(encryptRaw(buffer, compressed, passphrase, progressCallback, scryptParams)) -} - -// some of the techniques borrowed from: https://github.com/pointbiz/bitaddress.org -function decryptRaw (buffer, passphrase, progressCallback, scryptParams) { - // 39 bytes: 2 bytes prefix, 37 bytes payload - if (buffer.length !== 39) throw new Error('Invalid BIP38 data length') - if (buffer.readUInt8(0) !== 0x01) throw new Error('Invalid BIP38 prefix') - scryptParams = scryptParams || SCRYPT_PARAMS - - // check if BIP38 EC multiply - var type = buffer.readUInt8(1) - if (type === 0x43) return decryptECMult(buffer, passphrase, progressCallback, scryptParams) - if (type !== 0x42) throw new Error('Invalid BIP38 type') - - passphrase = Buffer.from(passphrase, 'utf8') - - var flagByte = buffer.readUInt8(2) - var compressed = flagByte === 0xe0 - if (!compressed && flagByte !== 0xc0) throw new Error('Invalid BIP38 compression flag') - - var N = scryptParams.N - var r = scryptParams.r - var p = scryptParams.p - - var salt = buffer.slice(3, 7) - var scryptBuf = scrypt(passphrase, salt, N, r, p, 64, progressCallback) - var derivedHalf1 = scryptBuf.slice(0, 32) - var derivedHalf2 = scryptBuf.slice(32, 64) - - var privKeyBuf = buffer.slice(7, 7 + 32) - var decipher = aes.createDecipheriv('aes-256-ecb', derivedHalf2, NULL) - decipher.setAutoPadding(false) - decipher.end(privKeyBuf) - - var plainText = decipher.read() - var privateKey = xor(derivedHalf1, plainText) - - // verify salt matches address - var d = BigInteger.fromBuffer(privateKey) - var address = getAddress(d, compressed) - var checksum = hash256(address).slice(0, 4) - assert.deepEqual(salt, checksum) - - return { - privateKey: privateKey, - compressed: compressed - } -} - -function decrypt (string, passphrase, progressCallback, scryptParams) { - return decryptRaw(bs58check.decode(string), passphrase, progressCallback, scryptParams) -} - -function decryptECMult (buffer, passphrase, progressCallback, scryptParams) { - passphrase = Buffer.from(passphrase, 'utf8') - buffer = buffer.slice(1) // FIXME: we can avoid this - scryptParams = scryptParams || SCRYPT_PARAMS - - var flag = buffer.readUInt8(1) - var compressed = (flag & 0x20) !== 0 - var hasLotSeq = (flag & 0x04) !== 0 - - assert.equal((flag & 0x24), flag, 'Invalid private key.') - - var addressHash = buffer.slice(2, 6) - var ownerEntropy = buffer.slice(6, 14) - var ownerSalt - - // 4 bytes ownerSalt if 4 bytes lot/sequence - if (hasLotSeq) { - ownerSalt = ownerEntropy.slice(0, 4) - - // else, 8 bytes ownerSalt - } else { - ownerSalt = ownerEntropy - } - - var encryptedPart1 = buffer.slice(14, 22) // First 8 bytes - var encryptedPart2 = buffer.slice(22, 38) // 16 bytes - - var N = scryptParams.N - var r = scryptParams.r - var p = scryptParams.p - var preFactor = scrypt(passphrase, ownerSalt, N, r, p, 32, progressCallback) - - var passFactor - if (hasLotSeq) { - var hashTarget = Buffer.concat([preFactor, ownerEntropy]) - passFactor = hash256(hashTarget) - } else { - passFactor = preFactor - } - - var passInt = BigInteger.fromBuffer(passFactor) - var passPoint = curve.G.multiply(passInt).getEncoded(true) - - var seedBPass = scrypt(passPoint, Buffer.concat([addressHash, ownerEntropy]), 1024, 1, 1, 64) - var derivedHalf1 = seedBPass.slice(0, 32) - var derivedHalf2 = seedBPass.slice(32, 64) - - var decipher = aes.createDecipheriv('aes-256-ecb', derivedHalf2, Buffer.alloc(0)) - decipher.setAutoPadding(false) - decipher.end(encryptedPart2) - - var decryptedPart2 = decipher.read() - var tmp = xor(decryptedPart2, derivedHalf1.slice(16, 32)) - var seedBPart2 = tmp.slice(8, 16) - - var decipher2 = aes.createDecipheriv('aes-256-ecb', derivedHalf2, Buffer.alloc(0)) - decipher2.setAutoPadding(false) - decipher2.write(encryptedPart1) // first 8 bytes - decipher2.end(tmp.slice(0, 8)) // last 8 bytes - - var seedBPart1 = xor(decipher2.read(), derivedHalf1.slice(0, 16)) - var seedB = Buffer.concat([seedBPart1, seedBPart2], 24) - var factorB = BigInteger.fromBuffer(hash256(seedB)) - - // d = passFactor * factorB (mod n) - var d = passInt.multiply(factorB).mod(curve.n) - - return { - privateKey: d.toBuffer(32), - compressed: compressed - } -} - -function verify (string) { - var decoded = bs58check.decodeUnsafe(string) - if (!decoded) return false - - if (decoded.length !== 39) return false - if (decoded.readUInt8(0) !== 0x01) return false - - var type = decoded.readUInt8(1) - var flag = decoded.readUInt8(2) - - // encrypted WIF - if (type === 0x42) { - if (flag !== 0xc0 && flag !== 0xe0) return false - - // EC mult - } else if (type === 0x43) { - if ((flag & ~0x24)) return false - } else { - return false - } - - return true -} - -module.exports = { - decrypt: decrypt, - decryptECMult: decryptECMult, - decryptRaw: decryptRaw, - encrypt: encrypt, - encryptRaw: encryptRaw, - verify: verify -} - -},{"assert":26,"bigi":63,"browserify-aes":113,"bs58check":140,"buffer-xor/inplace":145,"create-hash":239,"ecurve":257,"safe-buffer":742,"scryptsy":743}],67:[function(require,module,exports){ -var aes = require('browserify-aes') -var assert = require('assert') -var Buffer = require('safe-buffer').Buffer -var bs58check = require('bs58check') -var bs58grscheck = require('bs58grscheck') -var createHash = require('create-hash') -var scrypt = require('scryptsy') -var xor = require('buffer-xor/inplace') - -var ecurve = require('ecurve') -var curve = ecurve.getCurveByName('secp256k1') - -var BigInteger = require('bigi') - -// constants -var SCRYPT_PARAMS = { - N: 16384, // specified by BIP38 - r: 8, - p: 8 -} -var NULL = Buffer.alloc(0) - -function hash160 (buffer) { - return createHash('rmd160').update( - createHash('sha256').update(buffer).digest() - ).digest() -} - -function hash256 (buffer) { - return createHash('sha256').update( - createHash('sha256').update(buffer).digest() - ).digest() -} - -function getAddress (d, compressed) { - var Q = curve.G.multiply(d).getEncoded(compressed) - var hash = hash160(Q) - var payload = Buffer.allocUnsafe(21) - payload.writeUInt8(0x24, 0) // XXX TODO FIXME bitcoin only??? damn you BIP38 - hash.copy(payload, 1) - - return bs58grscheck.encode(payload) -} - -function encryptRaw (buffer, compressed, passphrase, progressCallback, scryptParams) { - if (buffer.length !== 32) throw new Error('Invalid private key length') - scryptParams = scryptParams || SCRYPT_PARAMS - - var d = BigInteger.fromBuffer(buffer) - var address = getAddress(d, compressed) - var secret = Buffer.from(passphrase, 'utf8') - var salt = hash256(address).slice(0, 4) - - var N = scryptParams.N - var r = scryptParams.r - var p = scryptParams.p - - var scryptBuf = scrypt(secret, salt, N, r, p, 64, progressCallback) - var derivedHalf1 = scryptBuf.slice(0, 32) - var derivedHalf2 = scryptBuf.slice(32, 64) - - var xorBuf = xor(derivedHalf1, buffer) - var cipher = aes.createCipheriv('aes-256-ecb', derivedHalf2, NULL) - cipher.setAutoPadding(false) - cipher.end(xorBuf) - - var cipherText = cipher.read() - - // 0x01 | 0x42 | flagByte | salt (4) | cipherText (32) - var result = Buffer.allocUnsafe(7 + 32) - result.writeUInt8(0x01, 0) - result.writeUInt8(0x42, 1) - result.writeUInt8(compressed ? 0xe0 : 0xc0, 2) - salt.copy(result, 3) - cipherText.copy(result, 7) - - return result -} - -function encrypt (buffer, compressed, passphrase, progressCallback, scryptParams) { - return bs58check.encode(encryptRaw(buffer, compressed, passphrase, progressCallback, scryptParams)) -} - -// some of the techniques borrowed from: https://github.com/pointbiz/bitaddress.org -function decryptRaw (buffer, passphrase, progressCallback, scryptParams) { - // 39 bytes: 2 bytes prefix, 37 bytes payload - if (buffer.length !== 39) throw new Error('Invalid BIP38 data length') - if (buffer.readUInt8(0) !== 0x01) throw new Error('Invalid BIP38 prefix') - scryptParams = scryptParams || SCRYPT_PARAMS - - // check if BIP38 EC multiply - var type = buffer.readUInt8(1) - if (type === 0x43) return decryptECMult(buffer, passphrase, progressCallback, scryptParams) - if (type !== 0x42) throw new Error('Invalid BIP38 type') - - passphrase = Buffer.from(passphrase, 'utf8') - - var flagByte = buffer.readUInt8(2) - var compressed = flagByte === 0xe0 - if (!compressed && flagByte !== 0xc0) throw new Error('Invalid BIP38 compression flag') - - var N = scryptParams.N - var r = scryptParams.r - var p = scryptParams.p - - var salt = buffer.slice(3, 7) - var scryptBuf = scrypt(passphrase, salt, N, r, p, 64, progressCallback) - var derivedHalf1 = scryptBuf.slice(0, 32) - var derivedHalf2 = scryptBuf.slice(32, 64) - - var privKeyBuf = buffer.slice(7, 7 + 32) - var decipher = aes.createDecipheriv('aes-256-ecb', derivedHalf2, NULL) - decipher.setAutoPadding(false) - decipher.end(privKeyBuf) - - var plainText = decipher.read() - var privateKey = xor(derivedHalf1, plainText) - - // verify salt matches address - var d = BigInteger.fromBuffer(privateKey) - var address = getAddress(d, compressed) - var checksum = hash256(address).slice(0, 4) - assert.deepEqual(salt, checksum) - - return { - privateKey: privateKey, - compressed: compressed - } -} - -function decrypt (string, passphrase, progressCallback, scryptParams) { - return decryptRaw(bs58check.decode(string), passphrase, progressCallback, scryptParams) -} - -function decryptECMult (buffer, passphrase, progressCallback, scryptParams) { - passphrase = Buffer.from(passphrase, 'utf8') - buffer = buffer.slice(1) // FIXME: we can avoid this - scryptParams = scryptParams || SCRYPT_PARAMS - - var flag = buffer.readUInt8(1) - var compressed = (flag & 0x20) !== 0 - var hasLotSeq = (flag & 0x04) !== 0 - - assert.equal((flag & 0x24), flag, 'Invalid private key.') - - var addressHash = buffer.slice(2, 6) - var ownerEntropy = buffer.slice(6, 14) - var ownerSalt - - // 4 bytes ownerSalt if 4 bytes lot/sequence - if (hasLotSeq) { - ownerSalt = ownerEntropy.slice(0, 4) - - // else, 8 bytes ownerSalt - } else { - ownerSalt = ownerEntropy - } - - var encryptedPart1 = buffer.slice(14, 22) // First 8 bytes - var encryptedPart2 = buffer.slice(22, 38) // 16 bytes - - var N = scryptParams.N - var r = scryptParams.r - var p = scryptParams.p - var preFactor = scrypt(passphrase, ownerSalt, N, r, p, 32, progressCallback) - - var passFactor - if (hasLotSeq) { - var hashTarget = Buffer.concat([preFactor, ownerEntropy]) - passFactor = hash256(hashTarget) - } else { - passFactor = preFactor - } - - var passInt = BigInteger.fromBuffer(passFactor) - var passPoint = curve.G.multiply(passInt).getEncoded(true) - - var seedBPass = scrypt(passPoint, Buffer.concat([addressHash, ownerEntropy]), 1024, 1, 1, 64) - var derivedHalf1 = seedBPass.slice(0, 32) - var derivedHalf2 = seedBPass.slice(32, 64) - - var decipher = aes.createDecipheriv('aes-256-ecb', derivedHalf2, Buffer.alloc(0)) - decipher.setAutoPadding(false) - decipher.end(encryptedPart2) - - var decryptedPart2 = decipher.read() - var tmp = xor(decryptedPart2, derivedHalf1.slice(16, 32)) - var seedBPart2 = tmp.slice(8, 16) - - var decipher2 = aes.createDecipheriv('aes-256-ecb', derivedHalf2, Buffer.alloc(0)) - decipher2.setAutoPadding(false) - decipher2.write(encryptedPart1) // first 8 bytes - decipher2.end(tmp.slice(0, 8)) // last 8 bytes - - var seedBPart1 = xor(decipher2.read(), derivedHalf1.slice(0, 16)) - var seedB = Buffer.concat([seedBPart1, seedBPart2], 24) - var factorB = BigInteger.fromBuffer(hash256(seedB)) - - // d = passFactor * factorB (mod n) - var d = passInt.multiply(factorB).mod(curve.n) - - return { - privateKey: d.toBuffer(32), - compressed: compressed - } -} - -function verify (string) { - var decoded = bs58grscheck.decodeUnsafe(string) - if (!decoded) return false - - if (decoded.length !== 39) return false - if (decoded.readUInt8(0) !== 0x01) return false - - var type = decoded.readUInt8(1) - var flag = decoded.readUInt8(2) - - // encrypted WIF - if (type === 0x42) { - if (flag !== 0xc0 && flag !== 0xe0) return false - - // EC mult - } else if (type === 0x43) { - if ((flag & ~0x24)) return false - } else { - return false - } - - return true -} - -module.exports = { - decrypt: decrypt, - decryptECMult: decryptECMult, - decryptRaw: decryptRaw, - encrypt: encrypt, - encryptRaw: encryptRaw, - verify: verify -} - -},{"assert":26,"bigi":63,"browserify-aes":113,"bs58check":140,"bs58grscheck":142,"buffer-xor/inplace":145,"create-hash":239,"ecurve":257,"safe-buffer":742,"scryptsy":743}],68:[function(require,module,exports){ -// Reference https://github.com/bitcoin/bips/blob/master/bip-0066.mediawiki -// Format: 0x30 [total-length] 0x02 [R-length] [R] 0x02 [S-length] [S] -// NOTE: SIGHASH byte ignored AND restricted, truncate before use - -var Buffer = require('safe-buffer').Buffer - -function check (buffer) { - if (buffer.length < 8) return false - if (buffer.length > 72) return false - if (buffer[0] !== 0x30) return false - if (buffer[1] !== buffer.length - 2) return false - if (buffer[2] !== 0x02) return false - - var lenR = buffer[3] - if (lenR === 0) return false - if (5 + lenR >= buffer.length) return false - if (buffer[4 + lenR] !== 0x02) return false - - var lenS = buffer[5 + lenR] - if (lenS === 0) return false - if ((6 + lenR + lenS) !== buffer.length) return false - - if (buffer[4] & 0x80) return false - if (lenR > 1 && (buffer[4] === 0x00) && !(buffer[5] & 0x80)) return false - - if (buffer[lenR + 6] & 0x80) return false - if (lenS > 1 && (buffer[lenR + 6] === 0x00) && !(buffer[lenR + 7] & 0x80)) return false - return true -} - -function decode (buffer) { - if (buffer.length < 8) throw new Error('DER sequence length is too short') - if (buffer.length > 72) throw new Error('DER sequence length is too long') - if (buffer[0] !== 0x30) throw new Error('Expected DER sequence') - if (buffer[1] !== buffer.length - 2) throw new Error('DER sequence length is invalid') - if (buffer[2] !== 0x02) throw new Error('Expected DER integer') - - var lenR = buffer[3] - if (lenR === 0) throw new Error('R length is zero') - if (5 + lenR >= buffer.length) throw new Error('R length is too long') - if (buffer[4 + lenR] !== 0x02) throw new Error('Expected DER integer (2)') - - var lenS = buffer[5 + lenR] - if (lenS === 0) throw new Error('S length is zero') - if ((6 + lenR + lenS) !== buffer.length) throw new Error('S length is invalid') - - if (buffer[4] & 0x80) throw new Error('R value is negative') - if (lenR > 1 && (buffer[4] === 0x00) && !(buffer[5] & 0x80)) throw new Error('R value excessively padded') - - if (buffer[lenR + 6] & 0x80) throw new Error('S value is negative') - if (lenS > 1 && (buffer[lenR + 6] === 0x00) && !(buffer[lenR + 7] & 0x80)) throw new Error('S value excessively padded') - - // non-BIP66 - extract R, S values - return { - r: buffer.slice(4, 4 + lenR), - s: buffer.slice(6 + lenR) - } -} - -/* - * Expects r and s to be positive DER integers. - * - * The DER format uses the most significant bit as a sign bit (& 0x80). - * If the significant bit is set AND the integer is positive, a 0x00 is prepended. - * - * Examples: - * - * 0 => 0x00 - * 1 => 0x01 - * -1 => 0xff - * 127 => 0x7f - * -127 => 0x81 - * 128 => 0x0080 - * -128 => 0x80 - * 255 => 0x00ff - * -255 => 0xff01 - * 16300 => 0x3fac - * -16300 => 0xc054 - * 62300 => 0x00f35c - * -62300 => 0xff0ca4 -*/ -function encode (r, s) { - var lenR = r.length - var lenS = s.length - if (lenR === 0) throw new Error('R length is zero') - if (lenS === 0) throw new Error('S length is zero') - if (lenR > 33) throw new Error('R length is too long') - if (lenS > 33) throw new Error('S length is too long') - if (r[0] & 0x80) throw new Error('R value is negative') - if (s[0] & 0x80) throw new Error('S value is negative') - if (lenR > 1 && (r[0] === 0x00) && !(r[1] & 0x80)) throw new Error('R value excessively padded') - if (lenS > 1 && (s[0] === 0x00) && !(s[1] & 0x80)) throw new Error('S value excessively padded') - - var signature = Buffer.allocUnsafe(6 + lenR + lenS) - - // 0x30 [total-length] 0x02 [R-length] [R] 0x02 [S-length] [S] - signature[0] = 0x30 - signature[1] = signature.length - 2 - signature[2] = 0x02 - signature[3] = r.length - r.copy(signature, 4) - signature[4 + lenR] = 0x02 - signature[5 + lenR] = s.length - s.copy(signature, 6 + lenR) - - return signature -} - -module.exports = { - check: check, - decode: decode, - encode: encode -} - -},{"safe-buffer":742}],69:[function(require,module,exports){ -module.exports={ - "OP_FALSE": 0, - "OP_0": 0, - "OP_PUSHDATA1": 76, - "OP_PUSHDATA2": 77, - "OP_PUSHDATA4": 78, - "OP_1NEGATE": 79, - "OP_RESERVED": 80, - "OP_TRUE": 81, - "OP_1": 81, - "OP_2": 82, - "OP_3": 83, - "OP_4": 84, - "OP_5": 85, - "OP_6": 86, - "OP_7": 87, - "OP_8": 88, - "OP_9": 89, - "OP_10": 90, - "OP_11": 91, - "OP_12": 92, - "OP_13": 93, - "OP_14": 94, - "OP_15": 95, - "OP_16": 96, - - "OP_NOP": 97, - "OP_VER": 98, - "OP_IF": 99, - "OP_NOTIF": 100, - "OP_VERIF": 101, - "OP_VERNOTIF": 102, - "OP_ELSE": 103, - "OP_ENDIF": 104, - "OP_VERIFY": 105, - "OP_RETURN": 106, - - "OP_TOALTSTACK": 107, - "OP_FROMALTSTACK": 108, - "OP_2DROP": 109, - "OP_2DUP": 110, - "OP_3DUP": 111, - "OP_2OVER": 112, - "OP_2ROT": 113, - "OP_2SWAP": 114, - "OP_IFDUP": 115, - "OP_DEPTH": 116, - "OP_DROP": 117, - "OP_DUP": 118, - "OP_NIP": 119, - "OP_OVER": 120, - "OP_PICK": 121, - "OP_ROLL": 122, - "OP_ROT": 123, - "OP_SWAP": 124, - "OP_TUCK": 125, - - "OP_CAT": 126, - "OP_SUBSTR": 127, - "OP_LEFT": 128, - "OP_RIGHT": 129, - "OP_SIZE": 130, - - "OP_INVERT": 131, - "OP_AND": 132, - "OP_OR": 133, - "OP_XOR": 134, - "OP_EQUAL": 135, - "OP_EQUALVERIFY": 136, - "OP_RESERVED1": 137, - "OP_RESERVED2": 138, - - "OP_1ADD": 139, - "OP_1SUB": 140, - "OP_2MUL": 141, - "OP_2DIV": 142, - "OP_NEGATE": 143, - "OP_ABS": 144, - "OP_NOT": 145, - "OP_0NOTEQUAL": 146, - "OP_ADD": 147, - "OP_SUB": 148, - "OP_MUL": 149, - "OP_DIV": 150, - "OP_MOD": 151, - "OP_LSHIFT": 152, - "OP_RSHIFT": 153, - - "OP_BOOLAND": 154, - "OP_BOOLOR": 155, - "OP_NUMEQUAL": 156, - "OP_NUMEQUALVERIFY": 157, - "OP_NUMNOTEQUAL": 158, - "OP_LESSTHAN": 159, - "OP_GREATERTHAN": 160, - "OP_LESSTHANOREQUAL": 161, - "OP_GREATERTHANOREQUAL": 162, - "OP_MIN": 163, - "OP_MAX": 164, - - "OP_WITHIN": 165, - - "OP_RIPEMD160": 166, - "OP_SHA1": 167, - "OP_SHA256": 168, - "OP_HASH160": 169, - "OP_HASH256": 170, - "OP_CODESEPARATOR": 171, - "OP_CHECKSIG": 172, - "OP_CHECKSIGVERIFY": 173, - "OP_CHECKMULTISIG": 174, - "OP_CHECKMULTISIGVERIFY": 175, - - "OP_NOP1": 176, - - "OP_NOP2": 177, - "OP_CHECKLOCKTIMEVERIFY": 177, - - "OP_NOP3": 178, - "OP_CHECKSEQUENCEVERIFY": 178, - - "OP_NOP4": 179, - "OP_NOP5": 180, - "OP_NOP6": 181, - "OP_NOP7": 182, - "OP_NOP8": 183, - "OP_NOP9": 184, - "OP_NOP10": 185, - - "OP_PUBKEYHASH": 253, - "OP_PUBKEY": 254, - "OP_INVALIDOPCODE": 255 -} - -},{}],70:[function(require,module,exports){ -var OPS = require('./index.json') - -var map = {} -for (var op in OPS) { - var code = OPS[op] - map[code] = op -} - -module.exports = map - -},{"./index.json":69}],71:[function(require,module,exports){ -var Buffer = require('safe-buffer').Buffer -var bech32 = require('bech32') -var bs58check = require('bs58check') -var bscript = require('./script') -var btemplates = require('./templates') -var networks = require('./networks') -var typeforce = require('typeforce') -var types = require('./types') - -function fromBase58Check (address) { - var payload = bs58check.decode(address) - - // TODO: 4.0.0, move to "toOutputScript" - if (payload.length < 21) throw new TypeError(address + ' is too short') - if (payload.length > 21) throw new TypeError(address + ' is too long') - - var version = payload.readUInt8(0) - var hash = payload.slice(1) - - return { version: version, hash: hash } -} - -function fromBech32 (address) { - var result = bech32.decode(address) - var data = bech32.fromWords(result.words.slice(1)) - - return { - version: result.words[0], - prefix: result.prefix, - data: Buffer.from(data) - } -} - -function toBase58Check (hash, version) { - // see https://github.com/iancoleman/bip39/pull/212 - if (version < 256){ - typeforce(types.tuple(types.Hash160bit, types.UInt8), arguments) - - var payload = Buffer.allocUnsafe(21) - payload.writeUInt8(version, 0) - hash.copy(payload, 1) - - return bs58check.encode(payload) - } - else{ - typeforce(types.tuple(types.Hash160bit, types.UInt16), arguments) - - var payload = Buffer.allocUnsafe(22) - payload.writeUInt16BE(version, 0) - hash.copy(payload, 2) - - return bs58check.encode(payload) - } -} - -function toBech32 (data, version, prefix) { - var words = bech32.toWords(data) - words.unshift(version) - - return bech32.encode(prefix, words) -} - -function fromOutputScript (outputScript, network) { - network = network || networks.bitcoin - - if (btemplates.pubKeyHash.output.check(outputScript)) return toBase58Check(bscript.compile(outputScript).slice(3, 23), network.pubKeyHash) - if (btemplates.scriptHash.output.check(outputScript)) return toBase58Check(bscript.compile(outputScript).slice(2, 22), network.scriptHash) - if (btemplates.witnessPubKeyHash.output.check(outputScript)) return toBech32(bscript.compile(outputScript).slice(2, 22), 0, network.bech32) - if (btemplates.witnessScriptHash.output.check(outputScript)) return toBech32(bscript.compile(outputScript).slice(2, 34), 0, network.bech32) - - throw new Error(bscript.toASM(outputScript) + ' has no matching Address') -} - -function toOutputScript (address, network) { - network = network || networks.bitcoin - - var decode - try { - decode = fromBase58Check(address) - } catch (e) {} - - if (decode) { - if (decode.version === network.pubKeyHash) return btemplates.pubKeyHash.output.encode(decode.hash) - if (decode.version === network.scriptHash) return btemplates.scriptHash.output.encode(decode.hash) - } else { - try { - decode = fromBech32(address) - } catch (e) {} - - if (decode) { - if (decode.prefix !== network.bech32) throw new Error(address + ' has an invalid prefix') - if (decode.version === 0) { - if (decode.data.length === 20) return btemplates.witnessPubKeyHash.output.encode(decode.data) - if (decode.data.length === 32) return btemplates.witnessScriptHash.output.encode(decode.data) - } - } - } - - throw new Error(address + ' has no matching Script') -} - -module.exports = { - fromBase58Check: fromBase58Check, - fromBech32: fromBech32, - fromOutputScript: fromOutputScript, - toBase58Check: toBase58Check, - toBech32: toBech32, - toOutputScript: toOutputScript -} - -},{"./networks":80,"./script":81,"./templates":83,"./types":107,"bech32":59,"bs58check":140,"safe-buffer":742,"typeforce":816}],72:[function(require,module,exports){ -var Buffer = require('safe-buffer').Buffer -var bcrypto = require('./crypto') -var fastMerkleRoot = require('merkle-lib/fastRoot') -var typeforce = require('typeforce') -var types = require('./types') -var varuint = require('varuint-bitcoin') - -var Transaction = require('./transaction') - -function Block () { - this.version = 1 - this.prevHash = null - this.merkleRoot = null - this.timestamp = 0 - this.bits = 0 - this.nonce = 0 -} - -Block.fromBuffer = function (buffer) { - if (buffer.length < 80) throw new Error('Buffer too small (< 80 bytes)') - - var offset = 0 - function readSlice (n) { - offset += n - return buffer.slice(offset - n, offset) - } - - function readUInt32 () { - var i = buffer.readUInt32LE(offset) - offset += 4 - return i - } - - function readInt32 () { - var i = buffer.readInt32LE(offset) - offset += 4 - return i - } - - var block = new Block() - block.version = readInt32() - block.prevHash = readSlice(32) - block.merkleRoot = readSlice(32) - block.timestamp = readUInt32() - block.bits = readUInt32() - block.nonce = readUInt32() - - if (buffer.length === 80) return block - - function readVarInt () { - var vi = varuint.decode(buffer, offset) - offset += varuint.decode.bytes - return vi - } - - function readTransaction () { - var tx = Transaction.fromBuffer(buffer.slice(offset), true) - offset += tx.byteLength() - return tx - } - - var nTransactions = readVarInt() - block.transactions = [] - - for (var i = 0; i < nTransactions; ++i) { - var tx = readTransaction() - block.transactions.push(tx) - } - - return block -} - -Block.prototype.byteLength = function (headersOnly) { - if (headersOnly || !this.transactions) return 80 - - return 80 + varuint.encodingLength(this.transactions.length) + this.transactions.reduce(function (a, x) { - return a + x.byteLength() - }, 0) -} - -Block.fromHex = function (hex) { - return Block.fromBuffer(Buffer.from(hex, 'hex')) -} - -Block.prototype.getHash = function () { - return bcrypto.hash256(this.toBuffer(true)) -} - -Block.prototype.getId = function () { - return this.getHash().reverse().toString('hex') -} - -Block.prototype.getUTCDate = function () { - var date = new Date(0) // epoch - date.setUTCSeconds(this.timestamp) - - return date -} - -// TODO: buffer, offset compatibility -Block.prototype.toBuffer = function (headersOnly) { - var buffer = Buffer.allocUnsafe(this.byteLength(headersOnly)) - - var offset = 0 - function writeSlice (slice) { - slice.copy(buffer, offset) - offset += slice.length - } - - function writeInt32 (i) { - buffer.writeInt32LE(i, offset) - offset += 4 - } - function writeUInt32 (i) { - buffer.writeUInt32LE(i, offset) - offset += 4 - } - - writeInt32(this.version) - writeSlice(this.prevHash) - writeSlice(this.merkleRoot) - writeUInt32(this.timestamp) - writeUInt32(this.bits) - writeUInt32(this.nonce) - - if (headersOnly || !this.transactions) return buffer - - varuint.encode(this.transactions.length, buffer, offset) - offset += varuint.encode.bytes - - this.transactions.forEach(function (tx) { - var txSize = tx.byteLength() // TODO: extract from toBuffer? - tx.toBuffer(buffer, offset) - offset += txSize - }) - - return buffer -} - -Block.prototype.toHex = function (headersOnly) { - return this.toBuffer(headersOnly).toString('hex') -} - -Block.calculateTarget = function (bits) { - var exponent = ((bits & 0xff000000) >> 24) - 3 - var mantissa = bits & 0x007fffff - var target = Buffer.alloc(32, 0) - target.writeUInt32BE(mantissa, 28 - exponent) - return target -} - -Block.calculateMerkleRoot = function (transactions) { - typeforce([{ getHash: types.Function }], transactions) - if (transactions.length === 0) throw TypeError('Cannot compute merkle root for zero transactions') - - var hashes = transactions.map(function (transaction) { - return transaction.getHash() - }) - - return fastMerkleRoot(hashes, bcrypto.hash256) -} - -Block.prototype.checkMerkleRoot = function () { - if (!this.transactions) return false - - var actualMerkleRoot = Block.calculateMerkleRoot(this.transactions) - return this.merkleRoot.compare(actualMerkleRoot) === 0 -} - -Block.prototype.checkProofOfWork = function () { - var hash = this.getHash().reverse() - var target = Block.calculateTarget(this.bits) - - return hash.compare(target) <= 0 -} - -module.exports = Block - -},{"./crypto":74,"./transaction":105,"./types":107,"merkle-lib/fastRoot":638,"safe-buffer":742,"typeforce":816,"varuint-bitcoin":830}],73:[function(require,module,exports){ -var pushdata = require('pushdata-bitcoin') -var varuint = require('varuint-bitcoin') - -// https://github.com/feross/buffer/blob/master/index.js#L1127 -function verifuint (value, max) { - if (typeof value !== 'number') throw new Error('cannot write a non-number as a number') - if (value < 0) throw new Error('specified a negative value for writing an unsigned value') - if (value > max) throw new Error('RangeError: value out of range') - if (Math.floor(value) !== value) throw new Error('value has a fractional component') -} - -function readUInt64LE (buffer, offset) { - var a = buffer.readUInt32LE(offset) - var b = buffer.readUInt32LE(offset + 4) - b *= 0x100000000 - - verifuint(b + a, 0x001fffffffffffff) - - return b + a -} - -function writeUInt64LE (buffer, value, offset) { - verifuint(value, 0x001fffffffffffff) - - buffer.writeInt32LE(value & -1, offset) - buffer.writeUInt32LE(Math.floor(value / 0x100000000), offset + 4) - return offset + 8 -} - -// TODO: remove in 4.0.0? -function readVarInt (buffer, offset) { - var result = varuint.decode(buffer, offset) - - return { - number: result, - size: varuint.decode.bytes - } -} - -// TODO: remove in 4.0.0? -function writeVarInt (buffer, number, offset) { - varuint.encode(number, buffer, offset) - return varuint.encode.bytes -} - -module.exports = { - pushDataSize: pushdata.encodingLength, - readPushDataInt: pushdata.decode, - readUInt64LE: readUInt64LE, - readVarInt: readVarInt, - varIntBuffer: varuint.encode, - varIntSize: varuint.encodingLength, - writePushDataInt: pushdata.encode, - writeUInt64LE: writeUInt64LE, - writeVarInt: writeVarInt -} - -},{"pushdata-bitcoin":720,"varuint-bitcoin":830}],74:[function(require,module,exports){ -var createHash = require('create-hash') - -function ripemd160 (buffer) { - return createHash('rmd160').update(buffer).digest() -} - -function sha1 (buffer) { - return createHash('sha1').update(buffer).digest() -} - -function sha256 (buffer) { - return createHash('sha256').update(buffer).digest() -} - -function hash160 (buffer) { - return ripemd160(sha256(buffer)) -} - -function hash256 (buffer) { - return sha256(sha256(buffer)) -} - -module.exports = { - hash160: hash160, - hash256: hash256, - ripemd160: ripemd160, - sha1: sha1, - sha256: sha256 -} - -},{"create-hash":239}],75:[function(require,module,exports){ -var Buffer = require('safe-buffer').Buffer -var createHmac = require('create-hmac') -var typeforce = require('typeforce') -var types = require('./types') - -var BigInteger = require('bigi') -var ECSignature = require('./ecsignature') - -var ZERO = Buffer.alloc(1, 0) -var ONE = Buffer.alloc(1, 1) - -var ecurve = require('ecurve') -var secp256k1 = ecurve.getCurveByName('secp256k1') - -// https://tools.ietf.org/html/rfc6979#section-3.2 -function deterministicGenerateK (hash, x, checkSig) { - typeforce(types.tuple( - types.Hash256bit, - types.Buffer256bit, - types.Function - ), arguments) - - // Step A, ignored as hash already provided - // Step B - // Step C - var k = Buffer.alloc(32, 0) - var v = Buffer.alloc(32, 1) - - // Step D - k = createHmac('sha256', k) - .update(v) - .update(ZERO) - .update(x) - .update(hash) - .digest() - - // Step E - v = createHmac('sha256', k).update(v).digest() - - // Step F - k = createHmac('sha256', k) - .update(v) - .update(ONE) - .update(x) - .update(hash) - .digest() - - // Step G - v = createHmac('sha256', k).update(v).digest() - - // Step H1/H2a, ignored as tlen === qlen (256 bit) - // Step H2b - v = createHmac('sha256', k).update(v).digest() - - var T = BigInteger.fromBuffer(v) - - // Step H3, repeat until T is within the interval [1, n - 1] and is suitable for ECDSA - while (T.signum() <= 0 || T.compareTo(secp256k1.n) >= 0 || !checkSig(T)) { - k = createHmac('sha256', k) - .update(v) - .update(ZERO) - .digest() - - v = createHmac('sha256', k).update(v).digest() - - // Step H1/H2a, again, ignored as tlen === qlen (256 bit) - // Step H2b again - v = createHmac('sha256', k).update(v).digest() - T = BigInteger.fromBuffer(v) - } - - return T -} - -var N_OVER_TWO = secp256k1.n.shiftRight(1) - -function sign (hash, d) { - typeforce(types.tuple(types.Hash256bit, types.BigInt), arguments) - - var x = d.toBuffer(32) - var e = BigInteger.fromBuffer(hash) - var n = secp256k1.n - var G = secp256k1.G - - var r, s - deterministicGenerateK(hash, x, function (k) { - var Q = G.multiply(k) - - if (secp256k1.isInfinity(Q)) return false - - r = Q.affineX.mod(n) - if (r.signum() === 0) return false - - s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n) - if (s.signum() === 0) return false - - return true - }) - - // enforce low S values, see bip62: 'low s values in signatures' - if (s.compareTo(N_OVER_TWO) > 0) { - s = n.subtract(s) - } - - return new ECSignature(r, s) -} - -function verify (hash, signature, Q) { - typeforce(types.tuple( - types.Hash256bit, - types.ECSignature, - types.ECPoint - ), arguments) - - var n = secp256k1.n - var G = secp256k1.G - - var r = signature.r - var s = signature.s - - // 1.4.1 Enforce r and s are both integers in the interval [1, n − 1] - if (r.signum() <= 0 || r.compareTo(n) >= 0) return false - if (s.signum() <= 0 || s.compareTo(n) >= 0) return false - - // 1.4.2 H = Hash(M), already done by the user - // 1.4.3 e = H - var e = BigInteger.fromBuffer(hash) - - // Compute s^-1 - var sInv = s.modInverse(n) - - // 1.4.4 Compute u1 = es^−1 mod n - // u2 = rs^−1 mod n - var u1 = e.multiply(sInv).mod(n) - var u2 = r.multiply(sInv).mod(n) - - // 1.4.5 Compute R = (xR, yR) - // R = u1G + u2Q - var R = G.multiplyTwo(u1, Q, u2) - - // 1.4.5 (cont.) Enforce R is not at infinity - if (secp256k1.isInfinity(R)) return false - - // 1.4.6 Convert the field element R.x to an integer - var xR = R.affineX - - // 1.4.7 Set v = xR mod n - var v = xR.mod(n) - - // 1.4.8 If v = r, output "valid", and if v != r, output "invalid" - return v.equals(r) -} - -module.exports = { - deterministicGenerateK: deterministicGenerateK, - sign: sign, - verify: verify, - - // TODO: remove - __curve: secp256k1 -} - -},{"./ecsignature":77,"./types":107,"bigi":63,"create-hmac":241,"ecurve":257,"safe-buffer":742,"typeforce":816}],76:[function(require,module,exports){ -var baddress = require('./address') -var bcrypto = require('./crypto') -var ecdsa = require('./ecdsa') -var randomBytes = require('randombytes') -var typeforce = require('typeforce') -var types = require('./types') -var wif = require('wif') - -var NETWORKS = require('./networks') -var BigInteger = require('bigi') - -var ecurve = require('ecurve') -var secp256k1 = ecdsa.__curve - -function ECPair (d, Q, options) { - if (options) { - typeforce({ - compressed: types.maybe(types.Boolean), - network: types.maybe(types.Network) - }, options) - } - - options = options || {} - - if (d) { - if (d.signum() <= 0) throw new Error('Private key must be greater than 0') - if (d.compareTo(secp256k1.n) >= 0) throw new Error('Private key must be less than the curve order') - if (Q) throw new TypeError('Unexpected publicKey parameter') - - this.d = d - } else { - typeforce(types.ECPoint, Q) - - this.__Q = Q - } - - this.compressed = options.compressed === undefined ? true : options.compressed - this.network = options.network || NETWORKS.bitcoin -} - -Object.defineProperty(ECPair.prototype, 'Q', { - get: function () { - if (!this.__Q && this.d) { - this.__Q = secp256k1.G.multiply(this.d) - } - - return this.__Q - } -}) - -ECPair.fromPublicKeyBuffer = function (buffer, network) { - var Q = ecurve.Point.decodeFrom(secp256k1, buffer) - - return new ECPair(null, Q, { - compressed: Q.compressed, - network: network - }) -} - -ECPair.fromWIF = function (string, network) { - var decoded = wif.decode(string) - var version = decoded.version - - // list of networks? - if (types.Array(network)) { - network = network.filter(function (x) { - return version === x.wif - }).pop() - - if (!network) throw new Error('Unknown network version') - - // otherwise, assume a network object (or default to bitcoin) - } else { - network = network || NETWORKS.bitcoin - - if (version !== network.wif) throw new Error('Invalid network version') - } - - var d = BigInteger.fromBuffer(decoded.privateKey) - - return new ECPair(d, null, { - compressed: decoded.compressed, - network: network - }) -} - -ECPair.makeRandom = function (options) { - options = options || {} - - var rng = options.rng || randomBytes - - var d - do { - var buffer = rng(32) - typeforce(types.Buffer256bit, buffer) - - d = BigInteger.fromBuffer(buffer) - } while (d.signum() <= 0 || d.compareTo(secp256k1.n) >= 0) - - return new ECPair(d, null, options) -} - -ECPair.prototype.getAddress = function () { - return baddress.toBase58Check(bcrypto.hash160(this.getPublicKeyBuffer()), this.getNetwork().pubKeyHash) -} - -ECPair.prototype.getNetwork = function () { - return this.network -} - -ECPair.prototype.getPublicKeyBuffer = function () { - return this.Q.getEncoded(this.compressed) -} - -ECPair.prototype.sign = function (hash) { - if (!this.d) throw new Error('Missing private key') - - return ecdsa.sign(hash, this.d) -} - -ECPair.prototype.toWIF = function () { - if (!this.d) throw new Error('Missing private key') - - return wif.encode(this.network.wif, this.d.toBuffer(32), this.compressed) -} - -ECPair.prototype.verify = function (hash, signature) { - return ecdsa.verify(hash, signature, this.Q) -} - -module.exports = ECPair - -},{"./address":71,"./crypto":74,"./ecdsa":75,"./networks":80,"./types":107,"bigi":63,"ecurve":257,"randombytes":724,"typeforce":816,"wif":832}],77:[function(require,module,exports){ -(function (Buffer){ -var bip66 = require('bip66') -var typeforce = require('typeforce') -var types = require('./types') - -var BigInteger = require('bigi') - -function ECSignature (r, s) { - typeforce(types.tuple(types.BigInt, types.BigInt), arguments) - - this.r = r - this.s = s -} - -ECSignature.parseCompact = function (buffer) { - typeforce(types.BufferN(65), buffer) - - var flagByte = buffer.readUInt8(0) - 27 - if (flagByte !== (flagByte & 7)) throw new Error('Invalid signature parameter') - - var compressed = !!(flagByte & 4) - var recoveryParam = flagByte & 3 - var signature = ECSignature.fromRSBuffer(buffer.slice(1)) - - return { - compressed: compressed, - i: recoveryParam, - signature: signature - } -} - -ECSignature.fromRSBuffer = function (buffer) { - typeforce(types.BufferN(64), buffer) - - var r = BigInteger.fromBuffer(buffer.slice(0, 32)) - var s = BigInteger.fromBuffer(buffer.slice(32, 64)) - return new ECSignature(r, s) -} - -ECSignature.fromDER = function (buffer) { - var decode = bip66.decode(buffer) - var r = BigInteger.fromDERInteger(decode.r) - var s = BigInteger.fromDERInteger(decode.s) - - return new ECSignature(r, s) -} - -// BIP62: 1 byte hashType flag (only 0x01, 0x02, 0x03, 0x81, 0x82 and 0x83 are allowed) -ECSignature.parseScriptSignature = function (buffer) { - var hashType = buffer.readUInt8(buffer.length - 1) - var hashTypeMod = hashType & ~0x80 - - if (hashTypeMod <= 0x00 || hashTypeMod >= 0x04) throw new Error('Invalid hashType ' + hashType) - - return { - signature: ECSignature.fromDER(buffer.slice(0, -1)), - hashType: hashType - } -} - -ECSignature.prototype.toCompact = function (i, compressed) { - if (compressed) { - i += 4 - } - - i += 27 - - var buffer = Buffer.alloc(65) - buffer.writeUInt8(i, 0) - this.toRSBuffer(buffer, 1) - return buffer -} - -ECSignature.prototype.toDER = function () { - var r = Buffer.from(this.r.toDERInteger()) - var s = Buffer.from(this.s.toDERInteger()) - - return bip66.encode(r, s) -} - -ECSignature.prototype.toRSBuffer = function (buffer, offset) { - buffer = buffer || Buffer.alloc(64) - this.r.toBuffer(32).copy(buffer, offset) - this.s.toBuffer(32).copy(buffer, offset + 32) - return buffer -} - -ECSignature.prototype.toScriptSignature = function (hashType) { - var hashTypeMod = hashType & ~0x80 - if (hashTypeMod <= 0 || hashTypeMod >= 4) throw new Error('Invalid hashType ' + hashType) - - var hashTypeBuffer = Buffer.alloc(1) - hashTypeBuffer.writeUInt8(hashType, 0) - - return Buffer.concat([this.toDER(), hashTypeBuffer]) -} - -module.exports = ECSignature - -}).call(this,require("buffer").Buffer) -},{"./types":107,"bigi":63,"bip66":68,"buffer":146,"typeforce":816}],78:[function(require,module,exports){ -var Buffer = require('safe-buffer').Buffer -var base58check = require('bs58check') -var bcrypto = require('./crypto') -var createHmac = require('create-hmac') -var typeforce = require('typeforce') -var types = require('./types') -var NETWORKS = require('./networks') - -var BigInteger = require('bigi') -var ECPair = require('./ecpair') - -var ecurve = require('ecurve') -var curve = ecurve.getCurveByName('secp256k1') - -function HDNode (keyPair, chainCode) { - typeforce(types.tuple('ECPair', types.Buffer256bit), arguments) - - if (!keyPair.compressed) throw new TypeError('BIP32 only allows compressed keyPairs') - - this.keyPair = keyPair - this.chainCode = chainCode - this.depth = 0 - this.index = 0 - this.parentFingerprint = 0x00000000 -} - -HDNode.HIGHEST_BIT = 0x80000000 -HDNode.LENGTH = 78 -HDNode.MASTER_SECRET = Buffer.from('Bitcoin seed', 'utf8') - -HDNode.fromSeedBuffer = function (seed, network) { - typeforce(types.tuple(types.Buffer, types.maybe(types.Network)), arguments) - - if (seed.length < 16) throw new TypeError('Seed should be at least 128 bits') - if (seed.length > 64) throw new TypeError('Seed should be at most 512 bits') - - var I = createHmac('sha512', HDNode.MASTER_SECRET).update(seed).digest() - var IL = I.slice(0, 32) - var IR = I.slice(32) - - // In case IL is 0 or >= n, the master key is invalid - // This is handled by the ECPair constructor - var pIL = BigInteger.fromBuffer(IL) - var keyPair = new ECPair(pIL, null, { - network: network - }) - - return new HDNode(keyPair, IR) -} - -HDNode.fromSeedHex = function (hex, network) { - return HDNode.fromSeedBuffer(Buffer.from(hex, 'hex'), network) -} - -HDNode.fromBase58 = function (string, networks) { - var buffer = base58check.decode(string) - if (buffer.length !== 78) throw new Error('Invalid buffer length') - - // 4 bytes: version bytes - var version = buffer.readUInt32BE(0) - var network - - // list of networks? - if (Array.isArray(networks)) { - network = networks.filter(function (x) { - return version === x.bip32.private || - version === x.bip32.public - }).pop() - - if (!network) throw new Error('Unknown network version') - - // otherwise, assume a network object (or default to bitcoin) - } else { - network = networks || NETWORKS.bitcoin - } - - if (version !== network.bip32.private && - version !== network.bip32.public) throw new Error('Invalid network version') - - // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ... - var depth = buffer[4] - - // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key) - var parentFingerprint = buffer.readUInt32BE(5) - if (depth === 0) { - if (parentFingerprint !== 0x00000000) throw new Error('Invalid parent fingerprint') - } - - // 4 bytes: child number. This is the number i in xi = xpar/i, with xi the key being serialized. - // This is encoded in MSB order. (0x00000000 if master key) - var index = buffer.readUInt32BE(9) - if (depth === 0 && index !== 0) throw new Error('Invalid index') - - // 32 bytes: the chain code - var chainCode = buffer.slice(13, 45) - var keyPair - - // 33 bytes: private key data (0x00 + k) - if (version === network.bip32.private) { - if (buffer.readUInt8(45) !== 0x00) throw new Error('Invalid private key') - - var d = BigInteger.fromBuffer(buffer.slice(46, 78)) - keyPair = new ECPair(d, null, { network: network }) - - // 33 bytes: public key data (0x02 + X or 0x03 + X) - } else { - var Q = ecurve.Point.decodeFrom(curve, buffer.slice(45, 78)) - // Q.compressed is assumed, if somehow this assumption is broken, `new HDNode` will throw - - // Verify that the X coordinate in the public point corresponds to a point on the curve. - // If not, the extended public key is invalid. - curve.validate(Q) - - keyPair = new ECPair(null, Q, { network: network }) - } - - var hd = new HDNode(keyPair, chainCode) - hd.depth = depth - hd.index = index - hd.parentFingerprint = parentFingerprint - - return hd -} - -HDNode.prototype.getAddress = function () { - return this.keyPair.getAddress() -} - -HDNode.prototype.getIdentifier = function () { - return bcrypto.hash160(this.keyPair.getPublicKeyBuffer()) -} - -HDNode.prototype.getFingerprint = function () { - return this.getIdentifier().slice(0, 4) -} - -HDNode.prototype.getNetwork = function () { - return this.keyPair.getNetwork() -} - -HDNode.prototype.getPublicKeyBuffer = function () { - return this.keyPair.getPublicKeyBuffer() -} - -HDNode.prototype.neutered = function () { - var neuteredKeyPair = new ECPair(null, this.keyPair.Q, { - network: this.keyPair.network - }) - - var neutered = new HDNode(neuteredKeyPair, this.chainCode) - neutered.depth = this.depth - neutered.index = this.index - neutered.parentFingerprint = this.parentFingerprint - - return neutered -} - -HDNode.prototype.sign = function (hash) { - return this.keyPair.sign(hash) -} - -HDNode.prototype.verify = function (hash, signature) { - return this.keyPair.verify(hash, signature) -} - -HDNode.prototype.toBase58 = function (__isPrivate) { - if (__isPrivate !== undefined) throw new TypeError('Unsupported argument in 2.0.0') - - // Version - var network = this.keyPair.network - var version = (!this.isNeutered()) ? network.bip32.private : network.bip32.public - var buffer = Buffer.allocUnsafe(78) - - // 4 bytes: version bytes - buffer.writeUInt32BE(version, 0) - - // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, .... - buffer.writeUInt8(this.depth, 4) - - // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key) - buffer.writeUInt32BE(this.parentFingerprint, 5) - - // 4 bytes: child number. This is the number i in xi = xpar/i, with xi the key being serialized. - // This is encoded in big endian. (0x00000000 if master key) - buffer.writeUInt32BE(this.index, 9) - - // 32 bytes: the chain code - this.chainCode.copy(buffer, 13) - - // 33 bytes: the public key or private key data - if (!this.isNeutered()) { - // 0x00 + k for private keys - buffer.writeUInt8(0, 45) - this.keyPair.d.toBuffer(32).copy(buffer, 46) - - // 33 bytes: the public key - } else { - // X9.62 encoding for public keys - this.keyPair.getPublicKeyBuffer().copy(buffer, 45) - } - - return base58check.encode(buffer) -} - -// https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#child-key-derivation-ckd-functions -HDNode.prototype.derive = function (index) { - typeforce(types.UInt32, index) - - var isHardened = index >= HDNode.HIGHEST_BIT - var data = Buffer.allocUnsafe(37) - - // Hardened child - if (isHardened) { - if (this.isNeutered()) throw new TypeError('Could not derive hardened child key') - - // data = 0x00 || ser256(kpar) || ser32(index) - data[0] = 0x00 - this.keyPair.d.toBuffer(32).copy(data, 1) - data.writeUInt32BE(index, 33) - - // Normal child - } else { - // data = serP(point(kpar)) || ser32(index) - // = serP(Kpar) || ser32(index) - this.keyPair.getPublicKeyBuffer().copy(data, 0) - data.writeUInt32BE(index, 33) - } - - var I = createHmac('sha512', this.chainCode).update(data).digest() - var IL = I.slice(0, 32) - var IR = I.slice(32) - - var pIL = BigInteger.fromBuffer(IL) - - // In case parse256(IL) >= n, proceed with the next value for i - if (pIL.compareTo(curve.n) >= 0) { - return this.derive(index + 1) - } - - // Private parent key -> private child key - var derivedKeyPair - if (!this.isNeutered()) { - // ki = parse256(IL) + kpar (mod n) - var ki = pIL.add(this.keyPair.d).mod(curve.n) - - // In case ki == 0, proceed with the next value for i - if (ki.signum() === 0) { - return this.derive(index + 1) - } - - derivedKeyPair = new ECPair(ki, null, { - network: this.keyPair.network - }) - - // Public parent key -> public child key - } else { - // Ki = point(parse256(IL)) + Kpar - // = G*IL + Kpar - var Ki = curve.G.multiply(pIL).add(this.keyPair.Q) - - // In case Ki is the point at infinity, proceed with the next value for i - if (curve.isInfinity(Ki)) { - return this.derive(index + 1) - } - - derivedKeyPair = new ECPair(null, Ki, { - network: this.keyPair.network - }) - } - - var hd = new HDNode(derivedKeyPair, IR) - hd.depth = this.depth + 1 - hd.index = index - hd.parentFingerprint = this.getFingerprint().readUInt32BE(0) - - return hd -} - -HDNode.prototype.deriveHardened = function (index) { - typeforce(types.UInt31, index) - - // Only derives hardened private keys by default - return this.derive(index + HDNode.HIGHEST_BIT) -} - -// Private === not neutered -// Public === neutered -HDNode.prototype.isNeutered = function () { - return !(this.keyPair.d) -} - -HDNode.prototype.derivePath = function (path) { - typeforce(types.BIP32Path, path) - - var splitPath = path.split('/') - if (splitPath[0] === 'm') { - if (this.parentFingerprint) { - throw new Error('Not a master node') - } - - splitPath = splitPath.slice(1) - } - - return splitPath.reduce(function (prevHd, indexStr) { - var index - if (indexStr.slice(-1) === "'") { - index = parseInt(indexStr.slice(0, -1), 10) - return prevHd.deriveHardened(index) - } else { - index = parseInt(indexStr, 10) - return prevHd.derive(index) - } - }, this) -} - -module.exports = HDNode - -},{"./crypto":74,"./ecpair":76,"./networks":80,"./types":107,"bigi":63,"bs58check":140,"create-hmac":241,"ecurve":257,"safe-buffer":742,"typeforce":816}],79:[function(require,module,exports){ -var script = require('./script') - -var templates = require('./templates') -for (var key in templates) { - script[key] = templates[key] -} - -module.exports = { - bufferutils: require('./bufferutils'), // TODO: remove in 4.0.0 - - Block: require('./block'), - ECPair: require('./ecpair'), - ECSignature: require('./ecsignature'), - HDNode: require('./hdnode'), - Transaction: require('./transaction'), - TransactionBuilder: require('./transaction_builder'), - - address: require('./address'), - crypto: require('./crypto'), - networks: require('./networks'), - opcodes: require('bitcoin-ops'), - script: script -} - -},{"./address":71,"./block":72,"./bufferutils":73,"./crypto":74,"./ecpair":76,"./ecsignature":77,"./hdnode":78,"./networks":80,"./script":81,"./templates":83,"./transaction":105,"./transaction_builder":106,"bitcoin-ops":69}],80:[function(require,module,exports){ -// https://en.bitcoin.it/wiki/List_of_address_prefixes -// Dogecoin BIP32 is a proposed standard: https://bitcointalk.org/index.php?topic=409731 - -module.exports = { - bitcoin: { - messagePrefix: '\x18Bitcoin Signed Message:\n', - bech32: 'bc', - bip32: { - public: 0x0488b21e, - private: 0x0488ade4 - }, - pubKeyHash: 0x00, - scriptHash: 0x05, - wif: 0x80 - }, - testnet: { - messagePrefix: '\x18Bitcoin Signed Message:\n', - bech32: 'tb', - bip32: { - public: 0x043587cf, - private: 0x04358394 - }, - pubKeyHash: 0x6f, - scriptHash: 0xc4, - wif: 0xef - }, - litecoin: { - messagePrefix: '\x19Litecoin Signed Message:\n', - bip32: { - public: 0x019da462, - private: 0x019d9cfe - }, - pubKeyHash: 0x30, - scriptHash: 0x32, - wif: 0xb0 - } -} - -},{}],81:[function(require,module,exports){ -var Buffer = require('safe-buffer').Buffer -var bip66 = require('bip66') -var pushdata = require('pushdata-bitcoin') -var typeforce = require('typeforce') -var types = require('./types') -var scriptNumber = require('./script_number') - -var OPS = require('bitcoin-ops') -var REVERSE_OPS = require('bitcoin-ops/map') -var OP_INT_BASE = OPS.OP_RESERVED // OP_1 - 1 - -function isOPInt (value) { - return types.Number(value) && - ((value === OPS.OP_0) || - (value >= OPS.OP_1 && value <= OPS.OP_16) || - (value === OPS.OP_1NEGATE)) -} - -function isPushOnlyChunk (value) { - return types.Buffer(value) || isOPInt(value) -} - -function isPushOnly (value) { - return types.Array(value) && value.every(isPushOnlyChunk) -} - -function asMinimalOP (buffer) { - if (buffer.length === 0) return OPS.OP_0 - if (buffer.length !== 1) return - if (buffer[0] >= 1 && buffer[0] <= 16) return OP_INT_BASE + buffer[0] - if (buffer[0] === 0x81) return OPS.OP_1NEGATE -} - -function compile (chunks) { - // TODO: remove me - if (Buffer.isBuffer(chunks)) return chunks - - typeforce(types.Array, chunks) - - var bufferSize = chunks.reduce(function (accum, chunk) { - // data chunk - if (Buffer.isBuffer(chunk)) { - // adhere to BIP62.3, minimal push policy - if (chunk.length === 1 && asMinimalOP(chunk) !== undefined) { - return accum + 1 - } - - return accum + pushdata.encodingLength(chunk.length) + chunk.length - } - - // opcode - return accum + 1 - }, 0.0) - - var buffer = Buffer.allocUnsafe(bufferSize) - var offset = 0 - - chunks.forEach(function (chunk) { - // data chunk - if (Buffer.isBuffer(chunk)) { - // adhere to BIP62.3, minimal push policy - var opcode = asMinimalOP(chunk) - if (opcode !== undefined) { - buffer.writeUInt8(opcode, offset) - offset += 1 - return - } - - offset += pushdata.encode(buffer, chunk.length, offset) - chunk.copy(buffer, offset) - offset += chunk.length - - // opcode - } else { - buffer.writeUInt8(chunk, offset) - offset += 1 - } - }) - - if (offset !== buffer.length) throw new Error('Could not decode chunks') - return buffer -} - -function decompile (buffer) { - // TODO: remove me - if (types.Array(buffer)) return buffer - - typeforce(types.Buffer, buffer) - - var chunks = [] - var i = 0 - - while (i < buffer.length) { - var opcode = buffer[i] - - // data chunk - if ((opcode > OPS.OP_0) && (opcode <= OPS.OP_PUSHDATA4)) { - var d = pushdata.decode(buffer, i) - - // did reading a pushDataInt fail? empty script - if (d === null) return [] - i += d.size - - // attempt to read too much data? empty script - if (i + d.number > buffer.length) return [] - - var data = buffer.slice(i, i + d.number) - i += d.number - - // decompile minimally - var op = asMinimalOP(data) - if (op !== undefined) { - chunks.push(op) - } else { - chunks.push(data) - } - - // opcode - } else { - chunks.push(opcode) - - i += 1 - } - } - - return chunks -} - -function toASM (chunks) { - if (Buffer.isBuffer(chunks)) { - chunks = decompile(chunks) - } - - return chunks.map(function (chunk) { - // data? - if (Buffer.isBuffer(chunk)) { - var op = asMinimalOP(chunk) - if (op === undefined) return chunk.toString('hex') - chunk = op - } - - // opcode! - return REVERSE_OPS[chunk] - }).join(' ') -} - -function fromASM (asm) { - typeforce(types.String, asm) - - return compile(asm.split(' ').map(function (chunkStr) { - // opcode? - if (OPS[chunkStr] !== undefined) return OPS[chunkStr] - typeforce(types.Hex, chunkStr) - - // data! - return Buffer.from(chunkStr, 'hex') - })) -} - -function toStack (chunks) { - chunks = decompile(chunks) - typeforce(isPushOnly, chunks) - - return chunks.map(function (op) { - if (Buffer.isBuffer(op)) return op - if (op === OPS.OP_0) return Buffer.allocUnsafe(0) - - return scriptNumber.encode(op - OP_INT_BASE) - }) -} - -function isCanonicalPubKey (buffer) { - if (!Buffer.isBuffer(buffer)) return false - if (buffer.length < 33) return false - - switch (buffer[0]) { - case 0x02: - case 0x03: - return buffer.length === 33 - case 0x04: - return buffer.length === 65 - } - - return false -} - -function isDefinedHashType (hashType) { - var hashTypeMod = hashType & ~0x80 - -// return hashTypeMod > SIGHASH_ALL && hashTypeMod < SIGHASH_SINGLE - return hashTypeMod > 0x00 && hashTypeMod < 0x04 -} - -function isCanonicalSignature (buffer) { - if (!Buffer.isBuffer(buffer)) return false - if (!isDefinedHashType(buffer[buffer.length - 1])) return false - - return bip66.check(buffer.slice(0, -1)) -} - -module.exports = { - compile: compile, - decompile: decompile, - fromASM: fromASM, - toASM: toASM, - toStack: toStack, - - number: require('./script_number'), - - isCanonicalPubKey: isCanonicalPubKey, - isCanonicalSignature: isCanonicalSignature, - isPushOnly: isPushOnly, - isDefinedHashType: isDefinedHashType -} - -},{"./script_number":82,"./types":107,"bip66":68,"bitcoin-ops":69,"bitcoin-ops/map":70,"pushdata-bitcoin":720,"safe-buffer":742,"typeforce":816}],82:[function(require,module,exports){ -var Buffer = require('safe-buffer').Buffer - -function decode (buffer, maxLength, minimal) { - maxLength = maxLength || 4 - minimal = minimal === undefined ? true : minimal - - var length = buffer.length - if (length === 0) return 0 - if (length > maxLength) throw new TypeError('Script number overflow') - if (minimal) { - if ((buffer[length - 1] & 0x7f) === 0) { - if (length <= 1 || (buffer[length - 2] & 0x80) === 0) throw new Error('Non-minimally encoded script number') - } - } - - // 40-bit - if (length === 5) { - var a = buffer.readUInt32LE(0) - var b = buffer.readUInt8(4) - - if (b & 0x80) return -(((b & ~0x80) * 0x100000000) + a) - return (b * 0x100000000) + a - } - - var result = 0 - - // 32-bit / 24-bit / 16-bit / 8-bit - for (var i = 0; i < length; ++i) { - result |= buffer[i] << (8 * i) - } - - if (buffer[length - 1] & 0x80) return -(result & ~(0x80 << (8 * (length - 1)))) - return result -} - -function scriptNumSize (i) { - return i > 0x7fffffff ? 5 - : i > 0x7fffff ? 4 - : i > 0x7fff ? 3 - : i > 0x7f ? 2 - : i > 0x00 ? 1 - : 0 -} - -function encode (number) { - var value = Math.abs(number) - var size = scriptNumSize(value) - var buffer = Buffer.allocUnsafe(size) - var negative = number < 0 - - for (var i = 0; i < size; ++i) { - buffer.writeUInt8(value & 0xff, i) - value >>= 8 - } - - if (buffer[size - 1] & 0x80) { - buffer.writeUInt8(negative ? 0x80 : 0x00, size - 1) - } else if (negative) { - buffer[size - 1] |= 0x80 - } - - return buffer -} - -module.exports = { - decode: decode, - encode: encode -} - -},{"safe-buffer":742}],83:[function(require,module,exports){ -var decompile = require('../script').decompile -var multisig = require('./multisig') -var nullData = require('./nulldata') -var pubKey = require('./pubkey') -var pubKeyHash = require('./pubkeyhash') -var scriptHash = require('./scripthash') -var witnessPubKeyHash = require('./witnesspubkeyhash') -var witnessScriptHash = require('./witnessscripthash') -var witnessCommitment = require('./witnesscommitment') - -var types = { - MULTISIG: 'multisig', - NONSTANDARD: 'nonstandard', - NULLDATA: 'nulldata', - P2PK: 'pubkey', - P2PKH: 'pubkeyhash', - P2SH: 'scripthash', - P2WPKH: 'witnesspubkeyhash', - P2WSH: 'witnessscripthash', - WITNESS_COMMITMENT: 'witnesscommitment' -} - -function classifyOutput (script) { - if (witnessPubKeyHash.output.check(script)) return types.P2WPKH - if (witnessScriptHash.output.check(script)) return types.P2WSH - if (pubKeyHash.output.check(script)) return types.P2PKH - if (scriptHash.output.check(script)) return types.P2SH - - // XXX: optimization, below functions .decompile before use - var chunks = decompile(script) - if (multisig.output.check(chunks)) return types.MULTISIG - if (pubKey.output.check(chunks)) return types.P2PK - if (witnessCommitment.output.check(chunks)) return types.WITNESS_COMMITMENT - if (nullData.output.check(chunks)) return types.NULLDATA - - return types.NONSTANDARD -} - -function classifyInput (script, allowIncomplete) { - // XXX: optimization, below functions .decompile before use - var chunks = decompile(script) - - if (pubKeyHash.input.check(chunks)) return types.P2PKH - if (scriptHash.input.check(chunks, allowIncomplete)) return types.P2SH - if (multisig.input.check(chunks, allowIncomplete)) return types.MULTISIG - if (pubKey.input.check(chunks)) return types.P2PK - - return types.NONSTANDARD -} - -function classifyWitness (script, allowIncomplete) { - // XXX: optimization, below functions .decompile before use - var chunks = decompile(script) - - if (witnessPubKeyHash.input.check(chunks)) return types.P2WPKH - if (witnessScriptHash.input.check(chunks, allowIncomplete)) return types.P2WSH - - return types.NONSTANDARD -} - -module.exports = { - classifyInput: classifyInput, - classifyOutput: classifyOutput, - classifyWitness: classifyWitness, - multisig: multisig, - nullData: nullData, - pubKey: pubKey, - pubKeyHash: pubKeyHash, - scriptHash: scriptHash, - witnessPubKeyHash: witnessPubKeyHash, - witnessScriptHash: witnessScriptHash, - witnessCommitment: witnessCommitment, - types: types -} - -},{"../script":81,"./multisig":84,"./nulldata":87,"./pubkey":88,"./pubkeyhash":91,"./scripthash":94,"./witnesscommitment":97,"./witnesspubkeyhash":99,"./witnessscripthash":102}],84:[function(require,module,exports){ -module.exports = { - input: require('./input'), - output: require('./output') -} - -},{"./input":85,"./output":86}],85:[function(require,module,exports){ -// OP_0 [signatures ...] - -var Buffer = require('safe-buffer').Buffer -var bscript = require('../../script') -var p2mso = require('./output') -var typeforce = require('typeforce') -var OPS = require('bitcoin-ops') - -function partialSignature (value) { - return value === OPS.OP_0 || bscript.isCanonicalSignature(value) -} - -function check (script, allowIncomplete) { - var chunks = bscript.decompile(script) - if (chunks.length < 2) return false - if (chunks[0] !== OPS.OP_0) return false - - if (allowIncomplete) { - return chunks.slice(1).every(partialSignature) - } - - return chunks.slice(1).every(bscript.isCanonicalSignature) -} -check.toJSON = function () { return 'multisig input' } - -var EMPTY_BUFFER = Buffer.allocUnsafe(0) - -function encodeStack (signatures, scriptPubKey) { - typeforce([partialSignature], signatures) - - if (scriptPubKey) { - var scriptData = p2mso.decode(scriptPubKey) - - if (signatures.length < scriptData.m) { - throw new TypeError('Not enough signatures provided') - } - - if (signatures.length > scriptData.pubKeys.length) { - throw new TypeError('Too many signatures provided') - } - } - - return [].concat(EMPTY_BUFFER, signatures.map(function (sig) { - if (sig === OPS.OP_0) { - return EMPTY_BUFFER - } - return sig - })) -} - -function encode (signatures, scriptPubKey) { - return bscript.compile(encodeStack(signatures, scriptPubKey)) -} - -function decodeStack (stack, allowIncomplete) { - typeforce(typeforce.Array, stack) - typeforce(check, stack, allowIncomplete) - return stack.slice(1) -} - -function decode (buffer, allowIncomplete) { - var stack = bscript.decompile(buffer) - return decodeStack(stack, allowIncomplete) -} - -module.exports = { - check: check, - decode: decode, - decodeStack: decodeStack, - encode: encode, - encodeStack: encodeStack -} - -},{"../../script":81,"./output":86,"bitcoin-ops":69,"safe-buffer":742,"typeforce":816}],86:[function(require,module,exports){ -// m [pubKeys ...] n OP_CHECKMULTISIG - -var bscript = require('../../script') -var types = require('../../types') -var typeforce = require('typeforce') -var OPS = require('bitcoin-ops') -var OP_INT_BASE = OPS.OP_RESERVED // OP_1 - 1 - -function check (script, allowIncomplete) { - var chunks = bscript.decompile(script) - - if (chunks.length < 4) return false - if (chunks[chunks.length - 1] !== OPS.OP_CHECKMULTISIG) return false - if (!types.Number(chunks[0])) return false - if (!types.Number(chunks[chunks.length - 2])) return false - var m = chunks[0] - OP_INT_BASE - var n = chunks[chunks.length - 2] - OP_INT_BASE - - if (m <= 0) return false - if (n > 16) return false - if (m > n) return false - if (n !== chunks.length - 3) return false - if (allowIncomplete) return true - - var keys = chunks.slice(1, -2) - return keys.every(bscript.isCanonicalPubKey) -} -check.toJSON = function () { return 'multi-sig output' } - -function encode (m, pubKeys) { - typeforce({ - m: types.Number, - pubKeys: [bscript.isCanonicalPubKey] - }, { - m: m, - pubKeys: pubKeys - }) - - var n = pubKeys.length - if (n < m) throw new TypeError('Not enough pubKeys provided') - - return bscript.compile([].concat( - OP_INT_BASE + m, - pubKeys, - OP_INT_BASE + n, - OPS.OP_CHECKMULTISIG - )) -} - -function decode (buffer, allowIncomplete) { - var chunks = bscript.decompile(buffer) - typeforce(check, chunks, allowIncomplete) - - return { - m: chunks[0] - OP_INT_BASE, - pubKeys: chunks.slice(1, -2) - } -} - -module.exports = { - check: check, - decode: decode, - encode: encode -} - -},{"../../script":81,"../../types":107,"bitcoin-ops":69,"typeforce":816}],87:[function(require,module,exports){ -// OP_RETURN {data} - -var bscript = require('../script') -var types = require('../types') -var typeforce = require('typeforce') -var OPS = require('bitcoin-ops') - -function check (script) { - var buffer = bscript.compile(script) - - return buffer.length > 1 && - buffer[0] === OPS.OP_RETURN -} -check.toJSON = function () { return 'null data output' } - -function encode (data) { - typeforce(types.Buffer, data) - - return bscript.compile([OPS.OP_RETURN, data]) -} - -function decode (buffer) { - typeforce(check, buffer) - - return buffer.slice(2) -} - -module.exports = { - output: { - check: check, - decode: decode, - encode: encode - } -} - -},{"../script":81,"../types":107,"bitcoin-ops":69,"typeforce":816}],88:[function(require,module,exports){ -arguments[4][84][0].apply(exports,arguments) -},{"./input":89,"./output":90,"dup":84}],89:[function(require,module,exports){ -// {signature} - -var bscript = require('../../script') -var typeforce = require('typeforce') - -function check (script) { - var chunks = bscript.decompile(script) - - return chunks.length === 1 && - bscript.isCanonicalSignature(chunks[0]) -} -check.toJSON = function () { return 'pubKey input' } - -function encodeStack (signature) { - typeforce(bscript.isCanonicalSignature, signature) - return [signature] -} - -function encode (signature) { - return bscript.compile(encodeStack(signature)) -} - -function decodeStack (stack) { - typeforce(typeforce.Array, stack) - typeforce(check, stack) - return stack[0] -} - -function decode (buffer) { - var stack = bscript.decompile(buffer) - return decodeStack(stack) -} - -module.exports = { - check: check, - decode: decode, - decodeStack: decodeStack, - encode: encode, - encodeStack: encodeStack -} - -},{"../../script":81,"typeforce":816}],90:[function(require,module,exports){ -// {pubKey} OP_CHECKSIG - -var bscript = require('../../script') -var typeforce = require('typeforce') -var OPS = require('bitcoin-ops') - -function check (script) { - var chunks = bscript.decompile(script) - - return chunks.length === 2 && - bscript.isCanonicalPubKey(chunks[0]) && - chunks[1] === OPS.OP_CHECKSIG -} -check.toJSON = function () { return 'pubKey output' } - -function encode (pubKey) { - typeforce(bscript.isCanonicalPubKey, pubKey) - - return bscript.compile([pubKey, OPS.OP_CHECKSIG]) -} - -function decode (buffer) { - var chunks = bscript.decompile(buffer) - typeforce(check, chunks) - - return chunks[0] -} - -module.exports = { - check: check, - decode: decode, - encode: encode -} - -},{"../../script":81,"bitcoin-ops":69,"typeforce":816}],91:[function(require,module,exports){ -arguments[4][84][0].apply(exports,arguments) -},{"./input":92,"./output":93,"dup":84}],92:[function(require,module,exports){ -// {signature} {pubKey} - -var bscript = require('../../script') -var typeforce = require('typeforce') - -function check (script) { - var chunks = bscript.decompile(script) - - return chunks.length === 2 && - bscript.isCanonicalSignature(chunks[0]) && - bscript.isCanonicalPubKey(chunks[1]) -} -check.toJSON = function () { return 'pubKeyHash input' } - -function encodeStack (signature, pubKey) { - typeforce({ - signature: bscript.isCanonicalSignature, - pubKey: bscript.isCanonicalPubKey - }, { - signature: signature, - pubKey: pubKey - }) - - return [signature, pubKey] -} - -function encode (signature, pubKey) { - return bscript.compile(encodeStack(signature, pubKey)) -} - -function decodeStack (stack) { - typeforce(typeforce.Array, stack) - typeforce(check, stack) - - return { - signature: stack[0], - pubKey: stack[1] - } -} - -function decode (buffer) { - var stack = bscript.decompile(buffer) - return decodeStack(stack) -} - -module.exports = { - check: check, - decode: decode, - decodeStack: decodeStack, - encode: encode, - encodeStack: encodeStack -} - -},{"../../script":81,"typeforce":816}],93:[function(require,module,exports){ -// OP_DUP OP_HASH160 {pubKeyHash} OP_EQUALVERIFY OP_CHECKSIG - -var bscript = require('../../script') -var types = require('../../types') -var typeforce = require('typeforce') -var OPS = require('bitcoin-ops') - -function check (script) { - var buffer = bscript.compile(script) - - return buffer.length === 25 && - buffer[0] === OPS.OP_DUP && - buffer[1] === OPS.OP_HASH160 && - buffer[2] === 0x14 && - buffer[23] === OPS.OP_EQUALVERIFY && - buffer[24] === OPS.OP_CHECKSIG -} -check.toJSON = function () { return 'pubKeyHash output' } - -function encode (pubKeyHash) { - typeforce(types.Hash160bit, pubKeyHash) - - return bscript.compile([ - OPS.OP_DUP, - OPS.OP_HASH160, - pubKeyHash, - OPS.OP_EQUALVERIFY, - OPS.OP_CHECKSIG - ]) -} - -function decode (buffer) { - typeforce(check, buffer) - - return buffer.slice(3, 23) -} - -module.exports = { - check: check, - decode: decode, - encode: encode -} - -},{"../../script":81,"../../types":107,"bitcoin-ops":69,"typeforce":816}],94:[function(require,module,exports){ -arguments[4][84][0].apply(exports,arguments) -},{"./input":95,"./output":96,"dup":84}],95:[function(require,module,exports){ -// {serialized scriptPubKey script} - -var Buffer = require('safe-buffer').Buffer -var bscript = require('../../script') -var typeforce = require('typeforce') - -var p2ms = require('../multisig/') -var p2pk = require('../pubkey/') -var p2pkh = require('../pubkeyhash/') -var p2wpkho = require('../witnesspubkeyhash/output') -var p2wsho = require('../witnessscripthash/output') - -function check (script, allowIncomplete) { - var chunks = bscript.decompile(script) - if (chunks.length < 1) return false - - var lastChunk = chunks[chunks.length - 1] - if (!Buffer.isBuffer(lastChunk)) return false - - var scriptSigChunks = bscript.decompile(bscript.compile(chunks.slice(0, -1))) - var redeemScriptChunks = bscript.decompile(lastChunk) - - // is redeemScript a valid script? - if (redeemScriptChunks.length === 0) return false - - // is redeemScriptSig push only? - if (!bscript.isPushOnly(scriptSigChunks)) return false - - // is witness? - if (chunks.length === 1) { - return p2wsho.check(redeemScriptChunks) || - p2wpkho.check(redeemScriptChunks) - } - - // match types - if (p2pkh.input.check(scriptSigChunks) && - p2pkh.output.check(redeemScriptChunks)) return true - - if (p2ms.input.check(scriptSigChunks, allowIncomplete) && - p2ms.output.check(redeemScriptChunks)) return true - - if (p2pk.input.check(scriptSigChunks) && - p2pk.output.check(redeemScriptChunks)) return true - - return false -} -check.toJSON = function () { return 'scriptHash input' } - -function encodeStack (redeemScriptStack, redeemScript) { - var serializedScriptPubKey = bscript.compile(redeemScript) - - return [].concat(redeemScriptStack, serializedScriptPubKey) -} - -function encode (redeemScriptSig, redeemScript) { - var redeemScriptStack = bscript.decompile(redeemScriptSig) - - return bscript.compile(encodeStack(redeemScriptStack, redeemScript)) -} - -function decodeStack (stack) { - typeforce(typeforce.Array, stack) - typeforce(check, stack) - - return { - redeemScriptStack: stack.slice(0, -1), - redeemScript: stack[stack.length - 1] - } -} - -function decode (buffer) { - var stack = bscript.decompile(buffer) - var result = decodeStack(stack) - result.redeemScriptSig = bscript.compile(result.redeemScriptStack) - delete result.redeemScriptStack - return result -} - -module.exports = { - check: check, - decode: decode, - decodeStack: decodeStack, - encode: encode, - encodeStack: encodeStack -} - -},{"../../script":81,"../multisig/":84,"../pubkey/":88,"../pubkeyhash/":91,"../witnesspubkeyhash/output":101,"../witnessscripthash/output":104,"safe-buffer":742,"typeforce":816}],96:[function(require,module,exports){ -// OP_HASH160 {scriptHash} OP_EQUAL - -var bscript = require('../../script') -var types = require('../../types') -var typeforce = require('typeforce') -var OPS = require('bitcoin-ops') - -function check (script) { - var buffer = bscript.compile(script) - - return buffer.length === 23 && - buffer[0] === OPS.OP_HASH160 && - buffer[1] === 0x14 && - buffer[22] === OPS.OP_EQUAL -} -check.toJSON = function () { return 'scriptHash output' } - -function encode (scriptHash) { - typeforce(types.Hash160bit, scriptHash) - - return bscript.compile([OPS.OP_HASH160, scriptHash, OPS.OP_EQUAL]) -} - -function decode (buffer) { - typeforce(check, buffer) - - return buffer.slice(2, 22) -} - -module.exports = { - check: check, - decode: decode, - encode: encode -} - -},{"../../script":81,"../../types":107,"bitcoin-ops":69,"typeforce":816}],97:[function(require,module,exports){ -module.exports = { - output: require('./output') -} - -},{"./output":98}],98:[function(require,module,exports){ -// OP_RETURN {aa21a9ed} {commitment} - -var Buffer = require('safe-buffer').Buffer -var bscript = require('../../script') -var types = require('../../types') -var typeforce = require('typeforce') -var OPS = require('bitcoin-ops') - -var HEADER = Buffer.from('aa21a9ed', 'hex') - -function check (script) { - var buffer = bscript.compile(script) - - return buffer.length > 37 && - buffer[0] === OPS.OP_RETURN && - buffer[1] === 0x24 && - buffer.slice(2, 6).equals(HEADER) -} - -check.toJSON = function () { return 'Witness commitment output' } - -function encode (commitment) { - typeforce(types.Hash256bit, commitment) - - var buffer = Buffer.allocUnsafe(36) - HEADER.copy(buffer, 0) - commitment.copy(buffer, 4) - - return bscript.compile([OPS.OP_RETURN, buffer]) -} - -function decode (buffer) { - typeforce(check, buffer) - - return bscript.decompile(buffer)[1].slice(4, 36) -} - -module.exports = { - check: check, - decode: decode, - encode: encode -} - -},{"../../script":81,"../../types":107,"bitcoin-ops":69,"safe-buffer":742,"typeforce":816}],99:[function(require,module,exports){ -arguments[4][84][0].apply(exports,arguments) -},{"./input":100,"./output":101,"dup":84}],100:[function(require,module,exports){ -// {signature} {pubKey} - -var bscript = require('../../script') -var typeforce = require('typeforce') - -function isCompressedCanonicalPubKey (pubKey) { - return bscript.isCanonicalPubKey(pubKey) && pubKey.length === 33 -} - -function check (script) { - var chunks = bscript.decompile(script) - - return chunks.length === 2 && - bscript.isCanonicalSignature(chunks[0]) && - isCompressedCanonicalPubKey(chunks[1]) -} -check.toJSON = function () { return 'witnessPubKeyHash input' } - -function encodeStack (signature, pubKey) { - typeforce({ - signature: bscript.isCanonicalSignature, - pubKey: isCompressedCanonicalPubKey - }, { - signature: signature, - pubKey: pubKey - }) - - return [signature, pubKey] -} - -function decodeStack (stack) { - typeforce(typeforce.Array, stack) - typeforce(check, stack) - - return { - signature: stack[0], - pubKey: stack[1] - } -} - -module.exports = { - check: check, - decodeStack: decodeStack, - encodeStack: encodeStack -} - -},{"../../script":81,"typeforce":816}],101:[function(require,module,exports){ -// OP_0 {pubKeyHash} - -var bscript = require('../../script') -var types = require('../../types') -var typeforce = require('typeforce') -var OPS = require('bitcoin-ops') - -function check (script) { - var buffer = bscript.compile(script) - - return buffer.length === 22 && - buffer[0] === OPS.OP_0 && - buffer[1] === 0x14 -} -check.toJSON = function () { return 'Witness pubKeyHash output' } - -function encode (pubKeyHash) { - typeforce(types.Hash160bit, pubKeyHash) - - return bscript.compile([OPS.OP_0, pubKeyHash]) -} - -function decode (buffer) { - typeforce(check, buffer) - - return buffer.slice(2) -} - -module.exports = { - check: check, - decode: decode, - encode: encode -} - -},{"../../script":81,"../../types":107,"bitcoin-ops":69,"typeforce":816}],102:[function(require,module,exports){ -arguments[4][84][0].apply(exports,arguments) -},{"./input":103,"./output":104,"dup":84}],103:[function(require,module,exports){ -(function (Buffer){ -// {serialized scriptPubKey script} - -var bscript = require('../../script') -var types = require('../../types') -var typeforce = require('typeforce') - -var p2ms = require('../multisig/') -var p2pk = require('../pubkey/') -var p2pkh = require('../pubkeyhash/') - -function check (chunks, allowIncomplete) { - typeforce(types.Array, chunks) - if (chunks.length < 1) return false - - var witnessScript = chunks[chunks.length - 1] - if (!Buffer.isBuffer(witnessScript)) return false - - var witnessScriptChunks = bscript.decompile(witnessScript) - - // is witnessScript a valid script? - if (witnessScriptChunks.length === 0) return false - - var witnessRawScriptSig = bscript.compile(chunks.slice(0, -1)) - - // match types - if (p2pkh.input.check(witnessRawScriptSig) && - p2pkh.output.check(witnessScriptChunks)) return true - - if (p2ms.input.check(witnessRawScriptSig, allowIncomplete) && - p2ms.output.check(witnessScriptChunks)) return true - - if (p2pk.input.check(witnessRawScriptSig) && - p2pk.output.check(witnessScriptChunks)) return true - - return false -} -check.toJSON = function () { return 'witnessScriptHash input' } - -function encodeStack (witnessData, witnessScript) { - typeforce({ - witnessData: [types.Buffer], - witnessScript: types.Buffer - }, { - witnessData: witnessData, - witnessScript: witnessScript - }) - - return [].concat(witnessData, witnessScript) -} - -function decodeStack (stack) { - typeforce(typeforce.Array, stack) - typeforce(check, stack) - return { - witnessData: stack.slice(0, -1), - witnessScript: stack[stack.length - 1] - } -} - -module.exports = { - check: check, - decodeStack: decodeStack, - encodeStack: encodeStack -} - -}).call(this,{"isBuffer":require("../../../../insert-module-globals/node_modules/is-buffer/index.js")}) -},{"../../../../insert-module-globals/node_modules/is-buffer/index.js":397,"../../script":81,"../../types":107,"../multisig/":84,"../pubkey/":88,"../pubkeyhash/":91,"typeforce":816}],104:[function(require,module,exports){ -// OP_0 {scriptHash} - -var bscript = require('../../script') -var types = require('../../types') -var typeforce = require('typeforce') -var OPS = require('bitcoin-ops') - -function check (script) { - var buffer = bscript.compile(script) - - return buffer.length === 34 && - buffer[0] === OPS.OP_0 && - buffer[1] === 0x20 -} -check.toJSON = function () { return 'Witness scriptHash output' } - -function encode (scriptHash) { - typeforce(types.Hash256bit, scriptHash) - - return bscript.compile([OPS.OP_0, scriptHash]) -} - -function decode (buffer) { - typeforce(check, buffer) - - return buffer.slice(2) -} - -module.exports = { - check: check, - decode: decode, - encode: encode -} - -},{"../../script":81,"../../types":107,"bitcoin-ops":69,"typeforce":816}],105:[function(require,module,exports){ -var Buffer = require('safe-buffer').Buffer -var bcrypto = require('./crypto') -var bscript = require('./script') -var bufferutils = require('./bufferutils') -var opcodes = require('bitcoin-ops') -var typeforce = require('typeforce') -var types = require('./types') -var varuint = require('varuint-bitcoin') - -function varSliceSize (someScript) { - var length = someScript.length - - return varuint.encodingLength(length) + length -} - -function vectorSize (someVector) { - var length = someVector.length - - return varuint.encodingLength(length) + someVector.reduce(function (sum, witness) { - return sum + varSliceSize(witness) - }, 0) -} - -function Transaction () { - this.version = 1 - this.locktime = 0 - this.ins = [] - this.outs = [] -} - -Transaction.DEFAULT_SEQUENCE = 0xffffffff -Transaction.SIGHASH_ALL = 0x01 -Transaction.SIGHASH_NONE = 0x02 -Transaction.SIGHASH_SINGLE = 0x03 -Transaction.SIGHASH_ANYONECANPAY = 0x80 -Transaction.ADVANCED_TRANSACTION_MARKER = 0x00 -Transaction.ADVANCED_TRANSACTION_FLAG = 0x01 - -var EMPTY_SCRIPT = Buffer.allocUnsafe(0) -var EMPTY_WITNESS = [] -var ZERO = Buffer.from('0000000000000000000000000000000000000000000000000000000000000000', 'hex') -var ONE = Buffer.from('0000000000000000000000000000000000000000000000000000000000000001', 'hex') -var VALUE_UINT64_MAX = Buffer.from('ffffffffffffffff', 'hex') -var BLANK_OUTPUT = { - script: EMPTY_SCRIPT, - valueBuffer: VALUE_UINT64_MAX -} - -Transaction.fromBuffer = function (buffer, __noStrict) { - var offset = 0 - function readSlice (n) { - offset += n - return buffer.slice(offset - n, offset) - } - - function readUInt32 () { - var i = buffer.readUInt32LE(offset) - offset += 4 - return i - } - - function readInt32 () { - var i = buffer.readInt32LE(offset) - offset += 4 - return i - } - - function readUInt64 () { - var i = bufferutils.readUInt64LE(buffer, offset) - offset += 8 - return i - } - - function readVarInt () { - var vi = varuint.decode(buffer, offset) - offset += varuint.decode.bytes - return vi - } - - function readVarSlice () { - return readSlice(readVarInt()) - } - - function readVector () { - var count = readVarInt() - var vector = [] - for (var i = 0; i < count; i++) vector.push(readVarSlice()) - return vector - } - - var tx = new Transaction() - tx.version = readInt32() - - var marker = buffer.readUInt8(offset) - var flag = buffer.readUInt8(offset + 1) - - var hasWitnesses = false - if (marker === Transaction.ADVANCED_TRANSACTION_MARKER && - flag === Transaction.ADVANCED_TRANSACTION_FLAG) { - offset += 2 - hasWitnesses = true - } - - var vinLen = readVarInt() - for (var i = 0; i < vinLen; ++i) { - tx.ins.push({ - hash: readSlice(32), - index: readUInt32(), - script: readVarSlice(), - sequence: readUInt32(), - witness: EMPTY_WITNESS - }) - } - - var voutLen = readVarInt() - for (i = 0; i < voutLen; ++i) { - tx.outs.push({ - value: readUInt64(), - script: readVarSlice() - }) - } - - if (hasWitnesses) { - for (i = 0; i < vinLen; ++i) { - tx.ins[i].witness = readVector() - } - - // was this pointless? - if (!tx.hasWitnesses()) throw new Error('Transaction has superfluous witness data') - } - - tx.locktime = readUInt32() - - if (__noStrict) return tx - if (offset !== buffer.length) throw new Error('Transaction has unexpected data') - - return tx -} - -Transaction.fromHex = function (hex) { - return Transaction.fromBuffer(Buffer.from(hex, 'hex')) -} - -Transaction.isCoinbaseHash = function (buffer) { - typeforce(types.Hash256bit, buffer) - for (var i = 0; i < 32; ++i) { - if (buffer[i] !== 0) return false - } - return true -} - -Transaction.prototype.isCoinbase = function () { - return this.ins.length === 1 && Transaction.isCoinbaseHash(this.ins[0].hash) -} - -Transaction.prototype.addInput = function (hash, index, sequence, scriptSig) { - typeforce(types.tuple( - types.Hash256bit, - types.UInt32, - types.maybe(types.UInt32), - types.maybe(types.Buffer) - ), arguments) - - if (types.Null(sequence)) { - sequence = Transaction.DEFAULT_SEQUENCE - } - - // Add the input and return the input's index - return (this.ins.push({ - hash: hash, - index: index, - script: scriptSig || EMPTY_SCRIPT, - sequence: sequence, - witness: EMPTY_WITNESS - }) - 1) -} - -Transaction.prototype.addOutput = function (scriptPubKey, value) { - typeforce(types.tuple(types.Buffer, types.Satoshi), arguments) - - // Add the output and return the output's index - return (this.outs.push({ - script: scriptPubKey, - value: value - }) - 1) -} - -Transaction.prototype.hasWitnesses = function () { - return this.ins.some(function (x) { - return x.witness.length !== 0 - }) -} - -Transaction.prototype.weight = function () { - var base = this.__byteLength(false) - var total = this.__byteLength(true) - return base * 3 + total -} - -Transaction.prototype.virtualSize = function () { - return Math.ceil(this.weight() / 4) -} - -Transaction.prototype.byteLength = function () { - return this.__byteLength(true) -} - -Transaction.prototype.__byteLength = function (__allowWitness) { - var hasWitnesses = __allowWitness && this.hasWitnesses() - - return ( - (hasWitnesses ? 10 : 8) + - varuint.encodingLength(this.ins.length) + - varuint.encodingLength(this.outs.length) + - this.ins.reduce(function (sum, input) { return sum + 40 + varSliceSize(input.script) }, 0) + - this.outs.reduce(function (sum, output) { return sum + 8 + varSliceSize(output.script) }, 0) + - (hasWitnesses ? this.ins.reduce(function (sum, input) { return sum + vectorSize(input.witness) }, 0) : 0) - ) -} - -Transaction.prototype.clone = function () { - var newTx = new Transaction() - newTx.version = this.version - newTx.locktime = this.locktime - - newTx.ins = this.ins.map(function (txIn) { - return { - hash: txIn.hash, - index: txIn.index, - script: txIn.script, - sequence: txIn.sequence, - witness: txIn.witness - } - }) - - newTx.outs = this.outs.map(function (txOut) { - return { - script: txOut.script, - value: txOut.value - } - }) - - return newTx -} - -/** - * Hash transaction for signing a specific input. - * - * Bitcoin uses a different hash for each signed transaction input. - * This method copies the transaction, makes the necessary changes based on the - * hashType, and then hashes the result. - * This hash can then be used to sign the provided transaction input. - */ -Transaction.prototype.hashForSignature = function (inIndex, prevOutScript, hashType) { - typeforce(types.tuple(types.UInt32, types.Buffer, /* types.UInt8 */ types.Number), arguments) - - // https://github.com/bitcoin/bitcoin/blob/master/src/test/sighash_tests.cpp#L29 - if (inIndex >= this.ins.length) return ONE - - // ignore OP_CODESEPARATOR - var ourScript = bscript.compile(bscript.decompile(prevOutScript).filter(function (x) { - return x !== opcodes.OP_CODESEPARATOR - })) - - var txTmp = this.clone() - - // SIGHASH_NONE: ignore all outputs? (wildcard payee) - if ((hashType & 0x1f) === Transaction.SIGHASH_NONE) { - txTmp.outs = [] - - // ignore sequence numbers (except at inIndex) - txTmp.ins.forEach(function (input, i) { - if (i === inIndex) return - - input.sequence = 0 - }) - - // SIGHASH_SINGLE: ignore all outputs, except at the same index? - } else if ((hashType & 0x1f) === Transaction.SIGHASH_SINGLE) { - // https://github.com/bitcoin/bitcoin/blob/master/src/test/sighash_tests.cpp#L60 - if (inIndex >= this.outs.length) return ONE - - // truncate outputs after - txTmp.outs.length = inIndex + 1 - - // "blank" outputs before - for (var i = 0; i < inIndex; i++) { - txTmp.outs[i] = BLANK_OUTPUT - } - - // ignore sequence numbers (except at inIndex) - txTmp.ins.forEach(function (input, y) { - if (y === inIndex) return - - input.sequence = 0 - }) - } - - // SIGHASH_ANYONECANPAY: ignore inputs entirely? - if (hashType & Transaction.SIGHASH_ANYONECANPAY) { - txTmp.ins = [txTmp.ins[inIndex]] - txTmp.ins[0].script = ourScript - - // SIGHASH_ALL: only ignore input scripts - } else { - // "blank" others input scripts - txTmp.ins.forEach(function (input) { input.script = EMPTY_SCRIPT }) - txTmp.ins[inIndex].script = ourScript - } - - // serialize and hash - var buffer = Buffer.allocUnsafe(txTmp.__byteLength(false) + 4) - buffer.writeInt32LE(hashType, buffer.length - 4) - txTmp.__toBuffer(buffer, 0, false) - - return bcrypto.hash256(buffer) -} - -Transaction.prototype.hashForWitnessV0 = function (inIndex, prevOutScript, value, hashType) { - typeforce(types.tuple(types.UInt32, types.Buffer, types.Satoshi, types.UInt32), arguments) - - var tbuffer, toffset - function writeSlice (slice) { toffset += slice.copy(tbuffer, toffset) } - function writeUInt32 (i) { toffset = tbuffer.writeUInt32LE(i, toffset) } - function writeUInt64 (i) { toffset = bufferutils.writeUInt64LE(tbuffer, i, toffset) } - function writeVarInt (i) { - varuint.encode(i, tbuffer, toffset) - toffset += varuint.encode.bytes - } - function writeVarSlice (slice) { writeVarInt(slice.length); writeSlice(slice) } - - var hashOutputs = ZERO - var hashPrevouts = ZERO - var hashSequence = ZERO - - if (!(hashType & Transaction.SIGHASH_ANYONECANPAY)) { - tbuffer = Buffer.allocUnsafe(36 * this.ins.length) - toffset = 0 - - this.ins.forEach(function (txIn) { - writeSlice(txIn.hash) - writeUInt32(txIn.index) - }) - - hashPrevouts = bcrypto.hash256(tbuffer) - } - - if (!(hashType & Transaction.SIGHASH_ANYONECANPAY) && - (hashType & 0x1f) !== Transaction.SIGHASH_SINGLE && - (hashType & 0x1f) !== Transaction.SIGHASH_NONE) { - tbuffer = Buffer.allocUnsafe(4 * this.ins.length) - toffset = 0 - - this.ins.forEach(function (txIn) { - writeUInt32(txIn.sequence) - }) - - hashSequence = bcrypto.hash256(tbuffer) - } - - if ((hashType & 0x1f) !== Transaction.SIGHASH_SINGLE && - (hashType & 0x1f) !== Transaction.SIGHASH_NONE) { - var txOutsSize = this.outs.reduce(function (sum, output) { - return sum + 8 + varSliceSize(output.script) - }, 0) - - tbuffer = Buffer.allocUnsafe(txOutsSize) - toffset = 0 - - this.outs.forEach(function (out) { - writeUInt64(out.value) - writeVarSlice(out.script) - }) - - hashOutputs = bcrypto.hash256(tbuffer) - } else if ((hashType & 0x1f) === Transaction.SIGHASH_SINGLE && inIndex < this.outs.length) { - var output = this.outs[inIndex] - - tbuffer = Buffer.allocUnsafe(8 + varSliceSize(output.script)) - toffset = 0 - writeUInt64(output.value) - writeVarSlice(output.script) - - hashOutputs = bcrypto.hash256(tbuffer) - } - - tbuffer = Buffer.allocUnsafe(156 + varSliceSize(prevOutScript)) - toffset = 0 - - var input = this.ins[inIndex] - writeUInt32(this.version) - writeSlice(hashPrevouts) - writeSlice(hashSequence) - writeSlice(input.hash) - writeUInt32(input.index) - writeVarSlice(prevOutScript) - writeUInt64(value) - writeUInt32(input.sequence) - writeSlice(hashOutputs) - writeUInt32(this.locktime) - writeUInt32(hashType) - return bcrypto.hash256(tbuffer) -} - -Transaction.prototype.getHash = function () { - return bcrypto.hash256(this.__toBuffer(undefined, undefined, false)) -} - -Transaction.prototype.getId = function () { - // transaction hash's are displayed in reverse order - return this.getHash().reverse().toString('hex') -} - -Transaction.prototype.toBuffer = function (buffer, initialOffset) { - return this.__toBuffer(buffer, initialOffset, true) -} - -Transaction.prototype.__toBuffer = function (buffer, initialOffset, __allowWitness) { - if (!buffer) buffer = Buffer.allocUnsafe(this.__byteLength(__allowWitness)) - - var offset = initialOffset || 0 - function writeSlice (slice) { offset += slice.copy(buffer, offset) } - function writeUInt8 (i) { offset = buffer.writeUInt8(i, offset) } - function writeUInt32 (i) { offset = buffer.writeUInt32LE(i, offset) } - function writeInt32 (i) { offset = buffer.writeInt32LE(i, offset) } - function writeUInt64 (i) { offset = bufferutils.writeUInt64LE(buffer, i, offset) } - function writeVarInt (i) { - varuint.encode(i, buffer, offset) - offset += varuint.encode.bytes - } - function writeVarSlice (slice) { writeVarInt(slice.length); writeSlice(slice) } - function writeVector (vector) { writeVarInt(vector.length); vector.forEach(writeVarSlice) } - - writeInt32(this.version) - - var hasWitnesses = __allowWitness && this.hasWitnesses() - - if (hasWitnesses) { - writeUInt8(Transaction.ADVANCED_TRANSACTION_MARKER) - writeUInt8(Transaction.ADVANCED_TRANSACTION_FLAG) - } - - writeVarInt(this.ins.length) - - this.ins.forEach(function (txIn) { - writeSlice(txIn.hash) - writeUInt32(txIn.index) - writeVarSlice(txIn.script) - writeUInt32(txIn.sequence) - }) - - writeVarInt(this.outs.length) - this.outs.forEach(function (txOut) { - if (!txOut.valueBuffer) { - writeUInt64(txOut.value) - } else { - writeSlice(txOut.valueBuffer) - } - - writeVarSlice(txOut.script) - }) - - if (hasWitnesses) { - this.ins.forEach(function (input) { - writeVector(input.witness) - }) - } - - writeUInt32(this.locktime) - - // avoid slicing unless necessary - if (initialOffset !== undefined) return buffer.slice(initialOffset, offset) - return buffer -} - -Transaction.prototype.toHex = function () { - return this.toBuffer().toString('hex') -} - -Transaction.prototype.setInputScript = function (index, scriptSig) { - typeforce(types.tuple(types.Number, types.Buffer), arguments) - - this.ins[index].script = scriptSig -} - -Transaction.prototype.setWitness = function (index, witness) { - typeforce(types.tuple(types.Number, [types.Buffer]), arguments) - - this.ins[index].witness = witness -} - -module.exports = Transaction - -},{"./bufferutils":73,"./crypto":74,"./script":81,"./types":107,"bitcoin-ops":69,"safe-buffer":742,"typeforce":816,"varuint-bitcoin":830}],106:[function(require,module,exports){ -var Buffer = require('safe-buffer').Buffer -var baddress = require('./address') -var bcrypto = require('./crypto') -var bscript = require('./script') -var btemplates = require('./templates') -var networks = require('./networks') -var ops = require('bitcoin-ops') -var typeforce = require('typeforce') -var types = require('./types') -var scriptTypes = btemplates.types -var SIGNABLE = [btemplates.types.P2PKH, btemplates.types.P2PK, btemplates.types.MULTISIG] -var P2SH = SIGNABLE.concat([btemplates.types.P2WPKH, btemplates.types.P2WSH]) - -var ECPair = require('./ecpair') -var ECSignature = require('./ecsignature') -var Transaction = require('./transaction') - -function supportedType (type) { - return SIGNABLE.indexOf(type) !== -1 -} - -function supportedP2SHType (type) { - return P2SH.indexOf(type) !== -1 -} - -function extractChunks (type, chunks, script) { - var pubKeys = [] - var signatures = [] - switch (type) { - case scriptTypes.P2PKH: - // if (redeemScript) throw new Error('Nonstandard... P2SH(P2PKH)') - pubKeys = chunks.slice(1) - signatures = chunks.slice(0, 1) - break - - case scriptTypes.P2PK: - pubKeys[0] = script ? btemplates.pubKey.output.decode(script) : undefined - signatures = chunks.slice(0, 1) - break - - case scriptTypes.MULTISIG: - if (script) { - var multisig = btemplates.multisig.output.decode(script) - pubKeys = multisig.pubKeys - } - - signatures = chunks.slice(1).map(function (chunk) { - return chunk.length === 0 ? undefined : chunk - }) - break - } - - return { - pubKeys: pubKeys, - signatures: signatures - } -} -function expandInput (scriptSig, witnessStack) { - if (scriptSig.length === 0 && witnessStack.length === 0) return {} - - var prevOutScript - var prevOutType - var scriptType - var script - var redeemScript - var witnessScript - var witnessScriptType - var redeemScriptType - var witness = false - var p2wsh = false - var p2sh = false - var witnessProgram - var chunks - - var scriptSigChunks = bscript.decompile(scriptSig) - var sigType = btemplates.classifyInput(scriptSigChunks, true) - if (sigType === scriptTypes.P2SH) { - p2sh = true - redeemScript = scriptSigChunks[scriptSigChunks.length - 1] - redeemScriptType = btemplates.classifyOutput(redeemScript) - prevOutScript = btemplates.scriptHash.output.encode(bcrypto.hash160(redeemScript)) - prevOutType = scriptTypes.P2SH - script = redeemScript - } - - var classifyWitness = btemplates.classifyWitness(witnessStack, true) - if (classifyWitness === scriptTypes.P2WSH) { - witnessScript = witnessStack[witnessStack.length - 1] - witnessScriptType = btemplates.classifyOutput(witnessScript) - p2wsh = true - witness = true - if (scriptSig.length === 0) { - prevOutScript = btemplates.witnessScriptHash.output.encode(bcrypto.sha256(witnessScript)) - prevOutType = scriptTypes.P2WSH - if (redeemScript !== undefined) { - throw new Error('Redeem script given when unnecessary') - } - // bare witness - } else { - if (!redeemScript) { - throw new Error('No redeemScript provided for P2WSH, but scriptSig non-empty') - } - witnessProgram = btemplates.witnessScriptHash.output.encode(bcrypto.sha256(witnessScript)) - if (!redeemScript.equals(witnessProgram)) { - throw new Error('Redeem script didn\'t match witnessScript') - } - } - - if (!supportedType(btemplates.classifyOutput(witnessScript))) { - throw new Error('unsupported witness script') - } - - script = witnessScript - scriptType = witnessScriptType - chunks = witnessStack.slice(0, -1) - } else if (classifyWitness === scriptTypes.P2WPKH) { - witness = true - var key = witnessStack[witnessStack.length - 1] - var keyHash = bcrypto.hash160(key) - if (scriptSig.length === 0) { - prevOutScript = btemplates.witnessPubKeyHash.output.encode(keyHash) - prevOutType = scriptTypes.P2WPKH - if (typeof redeemScript !== 'undefined') { - throw new Error('Redeem script given when unnecessary') - } - } else { - if (!redeemScript) { - throw new Error('No redeemScript provided for P2WPKH, but scriptSig wasn\'t empty') - } - witnessProgram = btemplates.witnessPubKeyHash.output.encode(keyHash) - if (!redeemScript.equals(witnessProgram)) { - throw new Error('Redeem script did not have the right witness program') - } - } - - scriptType = scriptTypes.P2PKH - chunks = witnessStack - } else if (redeemScript) { - if (!supportedP2SHType(redeemScriptType)) { - throw new Error('Bad redeemscript!') - } - - script = redeemScript - scriptType = redeemScriptType - chunks = scriptSigChunks.slice(0, -1) - } else { - prevOutType = scriptType = btemplates.classifyInput(scriptSig) - chunks = scriptSigChunks - } - - var expanded = extractChunks(scriptType, chunks, script) - - var result = { - pubKeys: expanded.pubKeys, - signatures: expanded.signatures, - prevOutScript: prevOutScript, - prevOutType: prevOutType, - signType: scriptType, - signScript: script, - witness: Boolean(witness) - } - - if (p2sh) { - result.redeemScript = redeemScript - result.redeemScriptType = redeemScriptType - } - - if (p2wsh) { - result.witnessScript = witnessScript - result.witnessScriptType = witnessScriptType - } - - return result -} - -// could be done in expandInput, but requires the original Transaction for hashForSignature -function fixMultisigOrder (input, transaction, vin) { - if (input.redeemScriptType !== scriptTypes.MULTISIG || !input.redeemScript) return - if (input.pubKeys.length === input.signatures.length) return - - var unmatched = input.signatures.concat() - - input.signatures = input.pubKeys.map(function (pubKey) { - var keyPair = ECPair.fromPublicKeyBuffer(pubKey) - var match - - // check for a signature - unmatched.some(function (signature, i) { - // skip if undefined || OP_0 - if (!signature) return false - - // TODO: avoid O(n) hashForSignature - var parsed = ECSignature.parseScriptSignature(signature) - var hash = transaction.hashForSignature(vin, input.redeemScript, parsed.hashType) - - // skip if signature does not match pubKey - if (!keyPair.verify(hash, parsed.signature)) return false - - // remove matched signature from unmatched - unmatched[i] = undefined - match = signature - - return true - }) - - return match - }) -} - -function expandOutput (script, scriptType, ourPubKey) { - typeforce(types.Buffer, script) - - var scriptChunks = bscript.decompile(script) - if (!scriptType) { - scriptType = btemplates.classifyOutput(script) - } - - var pubKeys = [] - - switch (scriptType) { - // does our hash160(pubKey) match the output scripts? - case scriptTypes.P2PKH: - if (!ourPubKey) break - - var pkh1 = scriptChunks[2] - var pkh2 = bcrypto.hash160(ourPubKey) - if (pkh1.equals(pkh2)) pubKeys = [ourPubKey] - break - - // does our hash160(pubKey) match the output scripts? - case scriptTypes.P2WPKH: - if (!ourPubKey) break - - var wpkh1 = scriptChunks[1] - var wpkh2 = bcrypto.hash160(ourPubKey) - if (wpkh1.equals(wpkh2)) pubKeys = [ourPubKey] - break - - case scriptTypes.P2PK: - pubKeys = scriptChunks.slice(0, 1) - break - - case scriptTypes.MULTISIG: - pubKeys = scriptChunks.slice(1, -2) - break - - default: return { scriptType: scriptType } - } - - return { - pubKeys: pubKeys, - scriptType: scriptType, - signatures: pubKeys.map(function () { return undefined }) - } -} - -function checkP2SHInput (input, redeemScriptHash) { - if (input.prevOutType) { - if (input.prevOutType !== scriptTypes.P2SH) throw new Error('PrevOutScript must be P2SH') - - var prevOutScriptScriptHash = bscript.decompile(input.prevOutScript)[1] - if (!prevOutScriptScriptHash.equals(redeemScriptHash)) throw new Error('Inconsistent hash160(RedeemScript)') - } -} - -function checkP2WSHInput (input, witnessScriptHash) { - if (input.prevOutType) { - if (input.prevOutType !== scriptTypes.P2WSH) throw new Error('PrevOutScript must be P2WSH') - - var scriptHash = bscript.decompile(input.prevOutScript)[1] - if (!scriptHash.equals(witnessScriptHash)) throw new Error('Inconsistent sha25(WitnessScript)') - } -} - -function prepareInput (input, kpPubKey, redeemScript, witnessValue, witnessScript) { - var expanded - var prevOutType - var prevOutScript - - var p2sh = false - var p2shType - var redeemScriptHash - - var witness = false - var p2wsh = false - var witnessType - var witnessScriptHash - - var signType - var signScript - - if (redeemScript && witnessScript) { - redeemScriptHash = bcrypto.hash160(redeemScript) - witnessScriptHash = bcrypto.sha256(witnessScript) - checkP2SHInput(input, redeemScriptHash) - - if (!redeemScript.equals(btemplates.witnessScriptHash.output.encode(witnessScriptHash))) throw new Error('Witness script inconsistent with redeem script') - - expanded = expandOutput(witnessScript, undefined, kpPubKey) - if (!expanded.pubKeys) throw new Error('WitnessScript not supported "' + bscript.toASM(redeemScript) + '"') - - prevOutType = btemplates.types.P2SH - prevOutScript = btemplates.scriptHash.output.encode(redeemScriptHash) - p2sh = witness = p2wsh = true - p2shType = btemplates.types.P2WSH - signType = witnessType = expanded.scriptType - signScript = witnessScript - } else if (redeemScript) { - redeemScriptHash = bcrypto.hash160(redeemScript) - checkP2SHInput(input, redeemScriptHash) - - expanded = expandOutput(redeemScript, undefined, kpPubKey) - if (!expanded.pubKeys) throw new Error('RedeemScript not supported "' + bscript.toASM(redeemScript) + '"') - - prevOutType = btemplates.types.P2SH - prevOutScript = btemplates.scriptHash.output.encode(redeemScriptHash) - p2sh = true - signType = p2shType = expanded.scriptType - signScript = redeemScript - witness = signType === btemplates.types.P2WPKH - } else if (witnessScript) { - witnessScriptHash = bcrypto.sha256(witnessScript) - checkP2WSHInput(input, witnessScriptHash) - - expanded = expandOutput(witnessScript, undefined, kpPubKey) - if (!expanded.pubKeys) throw new Error('WitnessScript not supported "' + bscript.toASM(redeemScript) + '"') - - prevOutType = btemplates.types.P2WSH - prevOutScript = btemplates.witnessScriptHash.output.encode(witnessScriptHash) - witness = p2wsh = true - signType = witnessType = expanded.scriptType - signScript = witnessScript - } else if (input.prevOutType) { - // embedded scripts are not possible without a redeemScript - if (input.prevOutType === scriptTypes.P2SH || - input.prevOutType === scriptTypes.P2WSH) { - throw new Error('PrevOutScript is ' + input.prevOutType + ', requires redeemScript') - } - - prevOutType = input.prevOutType - prevOutScript = input.prevOutScript - expanded = expandOutput(input.prevOutScript, input.prevOutType, kpPubKey) - if (!expanded.pubKeys) return - - witness = (input.prevOutType === scriptTypes.P2WPKH) - signType = prevOutType - signScript = prevOutScript - } else { - prevOutScript = btemplates.pubKeyHash.output.encode(bcrypto.hash160(kpPubKey)) - expanded = expandOutput(prevOutScript, scriptTypes.P2PKH, kpPubKey) - - prevOutType = scriptTypes.P2PKH - witness = false - signType = prevOutType - signScript = prevOutScript - } - - if (signType === scriptTypes.P2WPKH) { - signScript = btemplates.pubKeyHash.output.encode(btemplates.witnessPubKeyHash.output.decode(signScript)) - } - - if (p2sh) { - input.redeemScript = redeemScript - input.redeemScriptType = p2shType - } - - if (p2wsh) { - input.witnessScript = witnessScript - input.witnessScriptType = witnessType - } - - input.pubKeys = expanded.pubKeys - input.signatures = expanded.signatures - input.signScript = signScript - input.signType = signType - input.prevOutScript = prevOutScript - input.prevOutType = prevOutType - input.witness = witness -} - -function buildStack (type, signatures, pubKeys, allowIncomplete) { - if (type === scriptTypes.P2PKH) { - if (signatures.length === 1 && Buffer.isBuffer(signatures[0]) && pubKeys.length === 1) return btemplates.pubKeyHash.input.encodeStack(signatures[0], pubKeys[0]) - } else if (type === scriptTypes.P2PK) { - if (signatures.length === 1 && Buffer.isBuffer(signatures[0])) return btemplates.pubKey.input.encodeStack(signatures[0]) - } else if (type === scriptTypes.MULTISIG) { - if (signatures.length > 0) { - signatures = signatures.map(function (signature) { - return signature || ops.OP_0 - }) - if (!allowIncomplete) { - // remove blank signatures - signatures = signatures.filter(function (x) { return x !== ops.OP_0 }) - } - - return btemplates.multisig.input.encodeStack(signatures) - } - } else { - throw new Error('Not yet supported') - } - - if (!allowIncomplete) throw new Error('Not enough signatures provided') - return [] -} - -function buildInput (input, allowIncomplete) { - var scriptType = input.prevOutType - var sig = [] - var witness = [] - - if (supportedType(scriptType)) { - sig = buildStack(scriptType, input.signatures, input.pubKeys, allowIncomplete) - } - - var p2sh = false - if (scriptType === btemplates.types.P2SH) { - // We can remove this error later when we have a guarantee prepareInput - // rejects unsignable scripts - it MUST be signable at this point. - if (!allowIncomplete && !supportedP2SHType(input.redeemScriptType)) { - throw new Error('Impossible to sign this type') - } - - if (supportedType(input.redeemScriptType)) { - sig = buildStack(input.redeemScriptType, input.signatures, input.pubKeys, allowIncomplete) - } - - // If it wasn't SIGNABLE, it's witness, defer to that - if (input.redeemScriptType) { - p2sh = true - scriptType = input.redeemScriptType - } - } - - switch (scriptType) { - // P2WPKH is a special case of P2PKH - case btemplates.types.P2WPKH: - witness = buildStack(btemplates.types.P2PKH, input.signatures, input.pubKeys, allowIncomplete) - break - - case btemplates.types.P2WSH: - // We can remove this check later - if (!allowIncomplete && !supportedType(input.witnessScriptType)) { - throw new Error('Impossible to sign this type') - } - - if (supportedType(input.witnessScriptType)) { - witness = buildStack(input.witnessScriptType, input.signatures, input.pubKeys, allowIncomplete) - witness.push(input.witnessScript) - scriptType = input.witnessScriptType - } - - break - } - - // append redeemScript if necessary - if (p2sh) { - sig.push(input.redeemScript) - } - - return { - type: scriptType, - script: bscript.compile(sig), - witness: witness - } -} - -function TransactionBuilder (network, maximumFeeRate) { - this.prevTxMap = {} - this.network = network || networks.bitcoin - - // WARNING: This is __NOT__ to be relied on, its just another potential safety mechanism (safety in-depth) - this.maximumFeeRate = maximumFeeRate || 2500 - - this.inputs = [] - this.tx = new Transaction() -} - -TransactionBuilder.prototype.setLockTime = function (locktime) { - typeforce(types.UInt32, locktime) - - // if any signatures exist, throw - if (this.inputs.some(function (input) { - if (!input.signatures) return false - - return input.signatures.some(function (s) { return s }) - })) { - throw new Error('No, this would invalidate signatures') - } - - this.tx.locktime = locktime -} - -TransactionBuilder.prototype.setVersion = function (version) { - typeforce(types.UInt32, version) - - // XXX: this might eventually become more complex depending on what the versions represent - this.tx.version = version -} - -TransactionBuilder.fromTransaction = function (transaction, network) { - var txb = new TransactionBuilder(network) - - // Copy transaction fields - txb.setVersion(transaction.version) - txb.setLockTime(transaction.locktime) - - // Copy outputs (done first to avoid signature invalidation) - transaction.outs.forEach(function (txOut) { - txb.addOutput(txOut.script, txOut.value) - }) - - // Copy inputs - transaction.ins.forEach(function (txIn) { - txb.__addInputUnsafe(txIn.hash, txIn.index, { - sequence: txIn.sequence, - script: txIn.script, - witness: txIn.witness - }) - }) - - // fix some things not possible through the public API - txb.inputs.forEach(function (input, i) { - fixMultisigOrder(input, transaction, i) - }) - - return txb -} - -TransactionBuilder.prototype.addInput = function (txHash, vout, sequence, prevOutScript) { - if (!this.__canModifyInputs()) { - throw new Error('No, this would invalidate signatures') - } - - var value - - // is it a hex string? - if (typeof txHash === 'string') { - // transaction hashs's are displayed in reverse order, un-reverse it - txHash = Buffer.from(txHash, 'hex').reverse() - - // is it a Transaction object? - } else if (txHash instanceof Transaction) { - var txOut = txHash.outs[vout] - prevOutScript = txOut.script - value = txOut.value - - txHash = txHash.getHash() - } - - return this.__addInputUnsafe(txHash, vout, { - sequence: sequence, - prevOutScript: prevOutScript, - value: value - }) -} - -TransactionBuilder.prototype.__addInputUnsafe = function (txHash, vout, options) { - if (Transaction.isCoinbaseHash(txHash)) { - throw new Error('coinbase inputs not supported') - } - - var prevTxOut = txHash.toString('hex') + ':' + vout - if (this.prevTxMap[prevTxOut] !== undefined) throw new Error('Duplicate TxOut: ' + prevTxOut) - - var input = {} - - // derive what we can from the scriptSig - if (options.script !== undefined) { - input = expandInput(options.script, options.witness || []) - } - - // if an input value was given, retain it - if (options.value !== undefined) { - input.value = options.value - } - - // derive what we can from the previous transactions output script - if (!input.prevOutScript && options.prevOutScript) { - var prevOutType - - if (!input.pubKeys && !input.signatures) { - var expanded = expandOutput(options.prevOutScript) - - if (expanded.pubKeys) { - input.pubKeys = expanded.pubKeys - input.signatures = expanded.signatures - } - - prevOutType = expanded.scriptType - } - - input.prevOutScript = options.prevOutScript - input.prevOutType = prevOutType || btemplates.classifyOutput(options.prevOutScript) - } - - var vin = this.tx.addInput(txHash, vout, options.sequence, options.scriptSig) - this.inputs[vin] = input - this.prevTxMap[prevTxOut] = vin - return vin -} - -TransactionBuilder.prototype.addOutput = function (scriptPubKey, value) { - if (!this.__canModifyOutputs()) { - throw new Error('No, this would invalidate signatures') - } - - // Attempt to get a script if it's a base58 address string - if (typeof scriptPubKey === 'string') { - scriptPubKey = baddress.toOutputScript(scriptPubKey, this.network) - } - - return this.tx.addOutput(scriptPubKey, value) -} - -TransactionBuilder.prototype.build = function () { - return this.__build(false) -} -TransactionBuilder.prototype.buildIncomplete = function () { - return this.__build(true) -} - -TransactionBuilder.prototype.__build = function (allowIncomplete) { - if (!allowIncomplete) { - if (!this.tx.ins.length) throw new Error('Transaction has no inputs') - if (!this.tx.outs.length) throw new Error('Transaction has no outputs') - } - - var tx = this.tx.clone() - // Create script signatures from inputs - this.inputs.forEach(function (input, i) { - var scriptType = input.witnessScriptType || input.redeemScriptType || input.prevOutType - if (!scriptType && !allowIncomplete) throw new Error('Transaction is not complete') - var result = buildInput(input, allowIncomplete) - - // skip if no result - if (!allowIncomplete) { - if (!supportedType(result.type) && result.type !== btemplates.types.P2WPKH) { - throw new Error(result.type + ' not supported') - } - } - - tx.setInputScript(i, result.script) - tx.setWitness(i, result.witness) - }) - - if (!allowIncomplete) { - // do not rely on this, its merely a last resort - if (this.__overMaximumFees(tx.virtualSize())) { - throw new Error('Transaction has absurd fees') - } - } - - return tx -} - -function canSign (input) { - return input.prevOutScript !== undefined && - input.signScript !== undefined && - input.pubKeys !== undefined && - input.signatures !== undefined && - input.signatures.length === input.pubKeys.length && - input.pubKeys.length > 0 && - ( - input.witness === false || - (input.witness === true && input.value !== undefined) - ) -} - -TransactionBuilder.prototype.sign = function (vin, keyPair, redeemScript, hashType, witnessValue, witnessScript) { - // TODO: remove keyPair.network matching in 4.0.0 - if (keyPair.network && keyPair.network !== this.network) throw new TypeError('Inconsistent network') - if (!this.inputs[vin]) throw new Error('No input at index: ' + vin) - hashType = hashType || Transaction.SIGHASH_ALL - - var input = this.inputs[vin] - - // if redeemScript was previously provided, enforce consistency - if (input.redeemScript !== undefined && - redeemScript && - !input.redeemScript.equals(redeemScript)) { - throw new Error('Inconsistent redeemScript') - } - - var kpPubKey = keyPair.publicKey || keyPair.getPublicKeyBuffer() - if (!canSign(input)) { - if (witnessValue !== undefined) { - if (input.value !== undefined && input.value !== witnessValue) throw new Error('Input didn\'t match witnessValue') - typeforce(types.Satoshi, witnessValue) - input.value = witnessValue - } - - if (!canSign(input)) prepareInput(input, kpPubKey, redeemScript, witnessValue, witnessScript) - if (!canSign(input)) throw Error(input.prevOutType + ' not supported') - } - - // ready to sign - var signatureHash - if (input.witness) { - signatureHash = this.tx.hashForWitnessV0(vin, input.signScript, input.value, hashType) - } else { - signatureHash = this.tx.hashForSignature(vin, input.signScript, hashType) - } - - // enforce in order signing of public keys - var signed = input.pubKeys.some(function (pubKey, i) { - if (!kpPubKey.equals(pubKey)) return false - if (input.signatures[i]) throw new Error('Signature already exists') - if (kpPubKey.length !== 33 && - input.signType === scriptTypes.P2WPKH) throw new Error('BIP143 rejects uncompressed public keys in P2WPKH or P2WSH') - - var signature = keyPair.sign(signatureHash) - if (Buffer.isBuffer(signature)) signature = ECSignature.fromRSBuffer(signature) - - input.signatures[i] = signature.toScriptSignature(hashType) - return true - }) - - if (!signed) throw new Error('Key pair cannot sign for this input') -} - -function signatureHashType (buffer) { - return buffer.readUInt8(buffer.length - 1) -} - -TransactionBuilder.prototype.__canModifyInputs = function () { - return this.inputs.every(function (input) { - // any signatures? - if (input.signatures === undefined) return true - - return input.signatures.every(function (signature) { - if (!signature) return true - var hashType = signatureHashType(signature) - - // if SIGHASH_ANYONECANPAY is set, signatures would not - // be invalidated by more inputs - return hashType & Transaction.SIGHASH_ANYONECANPAY - }) - }) -} - -TransactionBuilder.prototype.__canModifyOutputs = function () { - var nInputs = this.tx.ins.length - var nOutputs = this.tx.outs.length - - return this.inputs.every(function (input) { - if (input.signatures === undefined) return true - - return input.signatures.every(function (signature) { - if (!signature) return true - var hashType = signatureHashType(signature) - - var hashTypeMod = hashType & 0x1f - if (hashTypeMod === Transaction.SIGHASH_NONE) return true - if (hashTypeMod === Transaction.SIGHASH_SINGLE) { - // if SIGHASH_SINGLE is set, and nInputs > nOutputs - // some signatures would be invalidated by the addition - // of more outputs - return nInputs <= nOutputs - } - }) - }) -} - -TransactionBuilder.prototype.__overMaximumFees = function (bytes) { - // not all inputs will have .value defined - var incoming = this.inputs.reduce(function (a, x) { return a + (x.value >>> 0) }, 0) - - // but all outputs do, and if we have any input value - // we can immediately determine if the outputs are too small - var outgoing = this.tx.outs.reduce(function (a, x) { return a + x.value }, 0) - var fee = incoming - outgoing - var feeRate = fee / bytes - - return feeRate > this.maximumFeeRate -} - -module.exports = TransactionBuilder - -},{"./address":71,"./crypto":74,"./ecpair":76,"./ecsignature":77,"./networks":80,"./script":81,"./templates":83,"./transaction":105,"./types":107,"bitcoin-ops":69,"safe-buffer":742,"typeforce":816}],107:[function(require,module,exports){ -var typeforce = require('typeforce') - -var UINT31_MAX = Math.pow(2, 31) - 1 -function UInt31 (value) { - return typeforce.UInt32(value) && value <= UINT31_MAX -} - -function BIP32Path (value) { - return typeforce.String(value) && value.match(/^(m\/)?(\d+'?\/)*\d+'?$/) -} -BIP32Path.toJSON = function () { return 'BIP32 derivation path' } - -var SATOSHI_MAX = 21 * 1e14 -function Satoshi (value) { - return typeforce.UInt53(value) && value <= SATOSHI_MAX -} - -// external dependent types -var BigInt = typeforce.quacksLike('BigInteger') -var ECPoint = typeforce.quacksLike('Point') - -// exposed, external API -var ECSignature = typeforce.compile({ r: BigInt, s: BigInt }) -var Network = typeforce.compile({ - messagePrefix: typeforce.oneOf(typeforce.Buffer, typeforce.String), - bip32: { - public: typeforce.UInt32, - private: typeforce.UInt32 - }, - // see https://github.com/iancoleman/bip39/pull/212 - pubKeyHash: typeforce.oneOf(typeforce.UInt8, typeforce.UInt16), - scriptHash: typeforce.oneOf(typeforce.UInt8, typeforce.UInt16), - wif: typeforce.UInt8 -}) - -// extend typeforce types with ours -var types = { - BigInt: BigInt, - BIP32Path: BIP32Path, - Buffer256bit: typeforce.BufferN(32), - ECPoint: ECPoint, - ECSignature: ECSignature, - Hash160bit: typeforce.BufferN(20), - Hash256bit: typeforce.BufferN(32), - Network: Network, - Satoshi: Satoshi, - UInt31: UInt31 -} - -for (var typeName in typeforce) { - types[typeName] = typeforce[typeName] -} - -module.exports = types - -},{"typeforce":816}],108:[function(require,module,exports){ -(function (module, exports) { - 'use strict'; - - // Utils - function assert (val, msg) { - if (!val) throw new Error(msg || 'Assertion failed'); - } - - // Could use `inherits` module, but don't want to move from single file - // architecture yet. - function inherits (ctor, superCtor) { - ctor.super_ = superCtor; - var TempCtor = function () {}; - TempCtor.prototype = superCtor.prototype; - ctor.prototype = new TempCtor(); - ctor.prototype.constructor = ctor; - } - - // BN - - function BN (number, base, endian) { - if (BN.isBN(number)) { - return number; - } - - this.negative = 0; - this.words = null; - this.length = 0; - - // Reduction context - this.red = null; - - if (number !== null) { - if (base === 'le' || base === 'be') { - endian = base; - base = 10; - } - - this._init(number || 0, base || 10, endian || 'be'); - } - } - if (typeof module === 'object') { - module.exports = BN; - } else { - exports.BN = BN; - } - - BN.BN = BN; - BN.wordSize = 26; - - var Buffer; - try { - Buffer = require('buffer').Buffer; - } catch (e) { - } - - BN.isBN = function isBN (num) { - if (num instanceof BN) { - return true; - } - - return num !== null && typeof num === 'object' && - num.constructor.wordSize === BN.wordSize && Array.isArray(num.words); - }; - - BN.max = function max (left, right) { - if (left.cmp(right) > 0) return left; - return right; - }; - - BN.min = function min (left, right) { - if (left.cmp(right) < 0) return left; - return right; - }; - - BN.prototype._init = function init (number, base, endian) { - if (typeof number === 'number') { - return this._initNumber(number, base, endian); - } - - if (typeof number === 'object') { - return this._initArray(number, base, endian); - } - - if (base === 'hex') { - base = 16; - } - assert(base === (base | 0) && base >= 2 && base <= 36); - - number = number.toString().replace(/\s+/g, ''); - var start = 0; - if (number[0] === '-') { - start++; - } - - if (base === 16) { - this._parseHex(number, start); - } else { - this._parseBase(number, base, start); - } - - if (number[0] === '-') { - this.negative = 1; - } - - this.strip(); - - if (endian !== 'le') return; - - this._initArray(this.toArray(), base, endian); - }; - - BN.prototype._initNumber = function _initNumber (number, base, endian) { - if (number < 0) { - this.negative = 1; - number = -number; - } - if (number < 0x4000000) { - this.words = [ number & 0x3ffffff ]; - this.length = 1; - } else if (number < 0x10000000000000) { - this.words = [ - number & 0x3ffffff, - (number / 0x4000000) & 0x3ffffff - ]; - this.length = 2; - } else { - assert(number < 0x20000000000000); // 2 ^ 53 (unsafe) - this.words = [ - number & 0x3ffffff, - (number / 0x4000000) & 0x3ffffff, - 1 - ]; - this.length = 3; - } - - if (endian !== 'le') return; - - // Reverse the bytes - this._initArray(this.toArray(), base, endian); - }; - - BN.prototype._initArray = function _initArray (number, base, endian) { - // Perhaps a Uint8Array - assert(typeof number.length === 'number'); - if (number.length <= 0) { - this.words = [ 0 ]; - this.length = 1; - return this; - } - - this.length = Math.ceil(number.length / 3); - this.words = new Array(this.length); - for (var i = 0; i < this.length; i++) { - this.words[i] = 0; - } - - var j, w; - var off = 0; - if (endian === 'be') { - for (i = number.length - 1, j = 0; i >= 0; i -= 3) { - w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16); - this.words[j] |= (w << off) & 0x3ffffff; - this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; - off += 24; - if (off >= 26) { - off -= 26; - j++; - } - } - } else if (endian === 'le') { - for (i = 0, j = 0; i < number.length; i += 3) { - w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16); - this.words[j] |= (w << off) & 0x3ffffff; - this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; - off += 24; - if (off >= 26) { - off -= 26; - j++; - } - } - } - return this.strip(); - }; - - function parseHex (str, start, end) { - var r = 0; - var len = Math.min(str.length, end); - for (var i = start; i < len; i++) { - var c = str.charCodeAt(i) - 48; - - r <<= 4; - - // 'a' - 'f' - if (c >= 49 && c <= 54) { - r |= c - 49 + 0xa; - - // 'A' - 'F' - } else if (c >= 17 && c <= 22) { - r |= c - 17 + 0xa; - - // '0' - '9' - } else { - r |= c & 0xf; - } - } - return r; - } - - BN.prototype._parseHex = function _parseHex (number, start) { - // Create possibly bigger array to ensure that it fits the number - this.length = Math.ceil((number.length - start) / 6); - this.words = new Array(this.length); - for (var i = 0; i < this.length; i++) { - this.words[i] = 0; - } - - var j, w; - // Scan 24-bit chunks and add them to the number - var off = 0; - for (i = number.length - 6, j = 0; i >= start; i -= 6) { - w = parseHex(number, i, i + 6); - this.words[j] |= (w << off) & 0x3ffffff; - // NOTE: `0x3fffff` is intentional here, 26bits max shift + 24bit hex limb - this.words[j + 1] |= w >>> (26 - off) & 0x3fffff; - off += 24; - if (off >= 26) { - off -= 26; - j++; - } - } - if (i + 6 !== start) { - w = parseHex(number, start, i + 6); - this.words[j] |= (w << off) & 0x3ffffff; - this.words[j + 1] |= w >>> (26 - off) & 0x3fffff; - } - this.strip(); - }; - - function parseBase (str, start, end, mul) { - var r = 0; - var len = Math.min(str.length, end); - for (var i = start; i < len; i++) { - var c = str.charCodeAt(i) - 48; - - r *= mul; - - // 'a' - if (c >= 49) { - r += c - 49 + 0xa; - - // 'A' - } else if (c >= 17) { - r += c - 17 + 0xa; - - // '0' - '9' - } else { - r += c; - } - } - return r; - } - - BN.prototype._parseBase = function _parseBase (number, base, start) { - // Initialize as zero - this.words = [ 0 ]; - this.length = 1; - - // Find length of limb in base - for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) { - limbLen++; - } - limbLen--; - limbPow = (limbPow / base) | 0; - - var total = number.length - start; - var mod = total % limbLen; - var end = Math.min(total, total - mod) + start; - - var word = 0; - for (var i = start; i < end; i += limbLen) { - word = parseBase(number, i, i + limbLen, base); - - this.imuln(limbPow); - if (this.words[0] + word < 0x4000000) { - this.words[0] += word; - } else { - this._iaddn(word); - } - } - - if (mod !== 0) { - var pow = 1; - word = parseBase(number, i, number.length, base); - - for (i = 0; i < mod; i++) { - pow *= base; - } - - this.imuln(pow); - if (this.words[0] + word < 0x4000000) { - this.words[0] += word; - } else { - this._iaddn(word); - } - } - }; - - BN.prototype.copy = function copy (dest) { - dest.words = new Array(this.length); - for (var i = 0; i < this.length; i++) { - dest.words[i] = this.words[i]; - } - dest.length = this.length; - dest.negative = this.negative; - dest.red = this.red; - }; - - BN.prototype.clone = function clone () { - var r = new BN(null); - this.copy(r); - return r; - }; - - BN.prototype._expand = function _expand (size) { - while (this.length < size) { - this.words[this.length++] = 0; - } - return this; - }; - - // Remove leading `0` from `this` - BN.prototype.strip = function strip () { - while (this.length > 1 && this.words[this.length - 1] === 0) { - this.length--; - } - return this._normSign(); - }; - - BN.prototype._normSign = function _normSign () { - // -0 = 0 - if (this.length === 1 && this.words[0] === 0) { - this.negative = 0; - } - return this; - }; - - BN.prototype.inspect = function inspect () { - return (this.red ? ''; - }; - - /* - - var zeros = []; - var groupSizes = []; - var groupBases = []; - - var s = ''; - var i = -1; - while (++i < BN.wordSize) { - zeros[i] = s; - s += '0'; - } - groupSizes[0] = 0; - groupSizes[1] = 0; - groupBases[0] = 0; - groupBases[1] = 0; - var base = 2 - 1; - while (++base < 36 + 1) { - var groupSize = 0; - var groupBase = 1; - while (groupBase < (1 << BN.wordSize) / base) { - groupBase *= base; - groupSize += 1; - } - groupSizes[base] = groupSize; - groupBases[base] = groupBase; - } - - */ - - var zeros = [ - '', - '0', - '00', - '000', - '0000', - '00000', - '000000', - '0000000', - '00000000', - '000000000', - '0000000000', - '00000000000', - '000000000000', - '0000000000000', - '00000000000000', - '000000000000000', - '0000000000000000', - '00000000000000000', - '000000000000000000', - '0000000000000000000', - '00000000000000000000', - '000000000000000000000', - '0000000000000000000000', - '00000000000000000000000', - '000000000000000000000000', - '0000000000000000000000000' - ]; - - var groupSizes = [ - 0, 0, - 25, 16, 12, 11, 10, 9, 8, - 8, 7, 7, 7, 7, 6, 6, - 6, 6, 6, 6, 6, 5, 5, - 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5 - ]; - - var groupBases = [ - 0, 0, - 33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216, - 43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625, - 16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632, - 6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149, - 24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176 - ]; - - BN.prototype.toString = function toString (base, padding) { - base = base || 10; - padding = padding | 0 || 1; - - var out; - if (base === 16 || base === 'hex') { - out = ''; - var off = 0; - var carry = 0; - for (var i = 0; i < this.length; i++) { - var w = this.words[i]; - var word = (((w << off) | carry) & 0xffffff).toString(16); - carry = (w >>> (24 - off)) & 0xffffff; - if (carry !== 0 || i !== this.length - 1) { - out = zeros[6 - word.length] + word + out; - } else { - out = word + out; - } - off += 2; - if (off >= 26) { - off -= 26; - i--; - } - } - if (carry !== 0) { - out = carry.toString(16) + out; - } - while (out.length % padding !== 0) { - out = '0' + out; - } - if (this.negative !== 0) { - out = '-' + out; - } - return out; - } - - if (base === (base | 0) && base >= 2 && base <= 36) { - // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base)); - var groupSize = groupSizes[base]; - // var groupBase = Math.pow(base, groupSize); - var groupBase = groupBases[base]; - out = ''; - var c = this.clone(); - c.negative = 0; - while (!c.isZero()) { - var r = c.modn(groupBase).toString(base); - c = c.idivn(groupBase); - - if (!c.isZero()) { - out = zeros[groupSize - r.length] + r + out; - } else { - out = r + out; - } - } - if (this.isZero()) { - out = '0' + out; - } - while (out.length % padding !== 0) { - out = '0' + out; - } - if (this.negative !== 0) { - out = '-' + out; - } - return out; - } - - assert(false, 'Base should be between 2 and 36'); - }; - - BN.prototype.toNumber = function toNumber () { - var ret = this.words[0]; - if (this.length === 2) { - ret += this.words[1] * 0x4000000; - } else if (this.length === 3 && this.words[2] === 0x01) { - // NOTE: at this stage it is known that the top bit is set - ret += 0x10000000000000 + (this.words[1] * 0x4000000); - } else if (this.length > 2) { - assert(false, 'Number can only safely store up to 53 bits'); - } - return (this.negative !== 0) ? -ret : ret; - }; - - BN.prototype.toJSON = function toJSON () { - return this.toString(16); - }; - - BN.prototype.toBuffer = function toBuffer (endian, length) { - assert(typeof Buffer !== 'undefined'); - return this.toArrayLike(Buffer, endian, length); - }; - - BN.prototype.toArray = function toArray (endian, length) { - return this.toArrayLike(Array, endian, length); - }; - - BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) { - var byteLength = this.byteLength(); - var reqLength = length || Math.max(1, byteLength); - assert(byteLength <= reqLength, 'byte array longer than desired length'); - assert(reqLength > 0, 'Requested array length <= 0'); - - this.strip(); - var littleEndian = endian === 'le'; - var res = new ArrayType(reqLength); - - var b, i; - var q = this.clone(); - if (!littleEndian) { - // Assume big-endian - for (i = 0; i < reqLength - byteLength; i++) { - res[i] = 0; - } - - for (i = 0; !q.isZero(); i++) { - b = q.andln(0xff); - q.iushrn(8); - - res[reqLength - i - 1] = b; - } - } else { - for (i = 0; !q.isZero(); i++) { - b = q.andln(0xff); - q.iushrn(8); - - res[i] = b; - } - - for (; i < reqLength; i++) { - res[i] = 0; - } - } - - return res; - }; - - if (Math.clz32) { - BN.prototype._countBits = function _countBits (w) { - return 32 - Math.clz32(w); - }; - } else { - BN.prototype._countBits = function _countBits (w) { - var t = w; - var r = 0; - if (t >= 0x1000) { - r += 13; - t >>>= 13; - } - if (t >= 0x40) { - r += 7; - t >>>= 7; - } - if (t >= 0x8) { - r += 4; - t >>>= 4; - } - if (t >= 0x02) { - r += 2; - t >>>= 2; - } - return r + t; - }; - } - - BN.prototype._zeroBits = function _zeroBits (w) { - // Short-cut - if (w === 0) return 26; - - var t = w; - var r = 0; - if ((t & 0x1fff) === 0) { - r += 13; - t >>>= 13; - } - if ((t & 0x7f) === 0) { - r += 7; - t >>>= 7; - } - if ((t & 0xf) === 0) { - r += 4; - t >>>= 4; - } - if ((t & 0x3) === 0) { - r += 2; - t >>>= 2; - } - if ((t & 0x1) === 0) { - r++; - } - return r; - }; - - // Return number of used bits in a BN - BN.prototype.bitLength = function bitLength () { - var w = this.words[this.length - 1]; - var hi = this._countBits(w); - return (this.length - 1) * 26 + hi; - }; - - function toBitArray (num) { - var w = new Array(num.bitLength()); - - for (var bit = 0; bit < w.length; bit++) { - var off = (bit / 26) | 0; - var wbit = bit % 26; - - w[bit] = (num.words[off] & (1 << wbit)) >>> wbit; - } - - return w; - } - - // Number of trailing zero bits - BN.prototype.zeroBits = function zeroBits () { - if (this.isZero()) return 0; - - var r = 0; - for (var i = 0; i < this.length; i++) { - var b = this._zeroBits(this.words[i]); - r += b; - if (b !== 26) break; - } - return r; - }; - - BN.prototype.byteLength = function byteLength () { - return Math.ceil(this.bitLength() / 8); - }; - - BN.prototype.toTwos = function toTwos (width) { - if (this.negative !== 0) { - return this.abs().inotn(width).iaddn(1); - } - return this.clone(); - }; - - BN.prototype.fromTwos = function fromTwos (width) { - if (this.testn(width - 1)) { - return this.notn(width).iaddn(1).ineg(); - } - return this.clone(); - }; - - BN.prototype.isNeg = function isNeg () { - return this.negative !== 0; - }; - - // Return negative clone of `this` - BN.prototype.neg = function neg () { - return this.clone().ineg(); - }; - - BN.prototype.ineg = function ineg () { - if (!this.isZero()) { - this.negative ^= 1; - } - - return this; - }; - - // Or `num` with `this` in-place - BN.prototype.iuor = function iuor (num) { - while (this.length < num.length) { - this.words[this.length++] = 0; - } - - for (var i = 0; i < num.length; i++) { - this.words[i] = this.words[i] | num.words[i]; - } - - return this.strip(); - }; - - BN.prototype.ior = function ior (num) { - assert((this.negative | num.negative) === 0); - return this.iuor(num); - }; - - // Or `num` with `this` - BN.prototype.or = function or (num) { - if (this.length > num.length) return this.clone().ior(num); - return num.clone().ior(this); - }; - - BN.prototype.uor = function uor (num) { - if (this.length > num.length) return this.clone().iuor(num); - return num.clone().iuor(this); - }; - - // And `num` with `this` in-place - BN.prototype.iuand = function iuand (num) { - // b = min-length(num, this) - var b; - if (this.length > num.length) { - b = num; - } else { - b = this; - } - - for (var i = 0; i < b.length; i++) { - this.words[i] = this.words[i] & num.words[i]; - } - - this.length = b.length; - - return this.strip(); - }; - - BN.prototype.iand = function iand (num) { - assert((this.negative | num.negative) === 0); - return this.iuand(num); - }; - - // And `num` with `this` - BN.prototype.and = function and (num) { - if (this.length > num.length) return this.clone().iand(num); - return num.clone().iand(this); - }; - - BN.prototype.uand = function uand (num) { - if (this.length > num.length) return this.clone().iuand(num); - return num.clone().iuand(this); - }; - - // Xor `num` with `this` in-place - BN.prototype.iuxor = function iuxor (num) { - // a.length > b.length - var a; - var b; - if (this.length > num.length) { - a = this; - b = num; - } else { - a = num; - b = this; - } - - for (var i = 0; i < b.length; i++) { - this.words[i] = a.words[i] ^ b.words[i]; - } - - if (this !== a) { - for (; i < a.length; i++) { - this.words[i] = a.words[i]; - } - } - - this.length = a.length; - - return this.strip(); - }; - - BN.prototype.ixor = function ixor (num) { - assert((this.negative | num.negative) === 0); - return this.iuxor(num); - }; - - // Xor `num` with `this` - BN.prototype.xor = function xor (num) { - if (this.length > num.length) return this.clone().ixor(num); - return num.clone().ixor(this); - }; - - BN.prototype.uxor = function uxor (num) { - if (this.length > num.length) return this.clone().iuxor(num); - return num.clone().iuxor(this); - }; - - // Not ``this`` with ``width`` bitwidth - BN.prototype.inotn = function inotn (width) { - assert(typeof width === 'number' && width >= 0); - - var bytesNeeded = Math.ceil(width / 26) | 0; - var bitsLeft = width % 26; - - // Extend the buffer with leading zeroes - this._expand(bytesNeeded); - - if (bitsLeft > 0) { - bytesNeeded--; - } - - // Handle complete words - for (var i = 0; i < bytesNeeded; i++) { - this.words[i] = ~this.words[i] & 0x3ffffff; - } - - // Handle the residue - if (bitsLeft > 0) { - this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft)); - } - - // And remove leading zeroes - return this.strip(); - }; - - BN.prototype.notn = function notn (width) { - return this.clone().inotn(width); - }; - - // Set `bit` of `this` - BN.prototype.setn = function setn (bit, val) { - assert(typeof bit === 'number' && bit >= 0); - - var off = (bit / 26) | 0; - var wbit = bit % 26; - - this._expand(off + 1); - - if (val) { - this.words[off] = this.words[off] | (1 << wbit); - } else { - this.words[off] = this.words[off] & ~(1 << wbit); - } - - return this.strip(); - }; - - // Add `num` to `this` in-place - BN.prototype.iadd = function iadd (num) { - var r; - - // negative + positive - if (this.negative !== 0 && num.negative === 0) { - this.negative = 0; - r = this.isub(num); - this.negative ^= 1; - return this._normSign(); - - // positive + negative - } else if (this.negative === 0 && num.negative !== 0) { - num.negative = 0; - r = this.isub(num); - num.negative = 1; - return r._normSign(); - } - - // a.length > b.length - var a, b; - if (this.length > num.length) { - a = this; - b = num; - } else { - a = num; - b = this; - } - - var carry = 0; - for (var i = 0; i < b.length; i++) { - r = (a.words[i] | 0) + (b.words[i] | 0) + carry; - this.words[i] = r & 0x3ffffff; - carry = r >>> 26; - } - for (; carry !== 0 && i < a.length; i++) { - r = (a.words[i] | 0) + carry; - this.words[i] = r & 0x3ffffff; - carry = r >>> 26; - } - - this.length = a.length; - if (carry !== 0) { - this.words[this.length] = carry; - this.length++; - // Copy the rest of the words - } else if (a !== this) { - for (; i < a.length; i++) { - this.words[i] = a.words[i]; - } - } - - return this; - }; - - // Add `num` to `this` - BN.prototype.add = function add (num) { - var res; - if (num.negative !== 0 && this.negative === 0) { - num.negative = 0; - res = this.sub(num); - num.negative ^= 1; - return res; - } else if (num.negative === 0 && this.negative !== 0) { - this.negative = 0; - res = num.sub(this); - this.negative = 1; - return res; - } - - if (this.length > num.length) return this.clone().iadd(num); - - return num.clone().iadd(this); - }; - - // Subtract `num` from `this` in-place - BN.prototype.isub = function isub (num) { - // this - (-num) = this + num - if (num.negative !== 0) { - num.negative = 0; - var r = this.iadd(num); - num.negative = 1; - return r._normSign(); - - // -this - num = -(this + num) - } else if (this.negative !== 0) { - this.negative = 0; - this.iadd(num); - this.negative = 1; - return this._normSign(); - } - - // At this point both numbers are positive - var cmp = this.cmp(num); - - // Optimization - zeroify - if (cmp === 0) { - this.negative = 0; - this.length = 1; - this.words[0] = 0; - return this; - } - - // a > b - var a, b; - if (cmp > 0) { - a = this; - b = num; - } else { - a = num; - b = this; - } - - var carry = 0; - for (var i = 0; i < b.length; i++) { - r = (a.words[i] | 0) - (b.words[i] | 0) + carry; - carry = r >> 26; - this.words[i] = r & 0x3ffffff; - } - for (; carry !== 0 && i < a.length; i++) { - r = (a.words[i] | 0) + carry; - carry = r >> 26; - this.words[i] = r & 0x3ffffff; - } - - // Copy rest of the words - if (carry === 0 && i < a.length && a !== this) { - for (; i < a.length; i++) { - this.words[i] = a.words[i]; - } - } - - this.length = Math.max(this.length, i); - - if (a !== this) { - this.negative = 1; - } - - return this.strip(); - }; - - // Subtract `num` from `this` - BN.prototype.sub = function sub (num) { - return this.clone().isub(num); - }; - - function smallMulTo (self, num, out) { - out.negative = num.negative ^ self.negative; - var len = (self.length + num.length) | 0; - out.length = len; - len = (len - 1) | 0; - - // Peel one iteration (compiler can't do it, because of code complexity) - var a = self.words[0] | 0; - var b = num.words[0] | 0; - var r = a * b; - - var lo = r & 0x3ffffff; - var carry = (r / 0x4000000) | 0; - out.words[0] = lo; - - for (var k = 1; k < len; k++) { - // Sum all words with the same `i + j = k` and accumulate `ncarry`, - // note that ncarry could be >= 0x3ffffff - var ncarry = carry >>> 26; - var rword = carry & 0x3ffffff; - var maxJ = Math.min(k, num.length - 1); - for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { - var i = (k - j) | 0; - a = self.words[i] | 0; - b = num.words[j] | 0; - r = a * b + rword; - ncarry += (r / 0x4000000) | 0; - rword = r & 0x3ffffff; - } - out.words[k] = rword | 0; - carry = ncarry | 0; - } - if (carry !== 0) { - out.words[k] = carry | 0; - } else { - out.length--; - } - - return out.strip(); - } - - // TODO(indutny): it may be reasonable to omit it for users who don't need - // to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit - // multiplication (like elliptic secp256k1). - var comb10MulTo = function comb10MulTo (self, num, out) { - var a = self.words; - var b = num.words; - var o = out.words; - var c = 0; - var lo; - var mid; - var hi; - var a0 = a[0] | 0; - var al0 = a0 & 0x1fff; - var ah0 = a0 >>> 13; - var a1 = a[1] | 0; - var al1 = a1 & 0x1fff; - var ah1 = a1 >>> 13; - var a2 = a[2] | 0; - var al2 = a2 & 0x1fff; - var ah2 = a2 >>> 13; - var a3 = a[3] | 0; - var al3 = a3 & 0x1fff; - var ah3 = a3 >>> 13; - var a4 = a[4] | 0; - var al4 = a4 & 0x1fff; - var ah4 = a4 >>> 13; - var a5 = a[5] | 0; - var al5 = a5 & 0x1fff; - var ah5 = a5 >>> 13; - var a6 = a[6] | 0; - var al6 = a6 & 0x1fff; - var ah6 = a6 >>> 13; - var a7 = a[7] | 0; - var al7 = a7 & 0x1fff; - var ah7 = a7 >>> 13; - var a8 = a[8] | 0; - var al8 = a8 & 0x1fff; - var ah8 = a8 >>> 13; - var a9 = a[9] | 0; - var al9 = a9 & 0x1fff; - var ah9 = a9 >>> 13; - var b0 = b[0] | 0; - var bl0 = b0 & 0x1fff; - var bh0 = b0 >>> 13; - var b1 = b[1] | 0; - var bl1 = b1 & 0x1fff; - var bh1 = b1 >>> 13; - var b2 = b[2] | 0; - var bl2 = b2 & 0x1fff; - var bh2 = b2 >>> 13; - var b3 = b[3] | 0; - var bl3 = b3 & 0x1fff; - var bh3 = b3 >>> 13; - var b4 = b[4] | 0; - var bl4 = b4 & 0x1fff; - var bh4 = b4 >>> 13; - var b5 = b[5] | 0; - var bl5 = b5 & 0x1fff; - var bh5 = b5 >>> 13; - var b6 = b[6] | 0; - var bl6 = b6 & 0x1fff; - var bh6 = b6 >>> 13; - var b7 = b[7] | 0; - var bl7 = b7 & 0x1fff; - var bh7 = b7 >>> 13; - var b8 = b[8] | 0; - var bl8 = b8 & 0x1fff; - var bh8 = b8 >>> 13; - var b9 = b[9] | 0; - var bl9 = b9 & 0x1fff; - var bh9 = b9 >>> 13; - - out.negative = self.negative ^ num.negative; - out.length = 19; - /* k = 0 */ - lo = Math.imul(al0, bl0); - mid = Math.imul(al0, bh0); - mid = (mid + Math.imul(ah0, bl0)) | 0; - hi = Math.imul(ah0, bh0); - var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0; - w0 &= 0x3ffffff; - /* k = 1 */ - lo = Math.imul(al1, bl0); - mid = Math.imul(al1, bh0); - mid = (mid + Math.imul(ah1, bl0)) | 0; - hi = Math.imul(ah1, bh0); - lo = (lo + Math.imul(al0, bl1)) | 0; - mid = (mid + Math.imul(al0, bh1)) | 0; - mid = (mid + Math.imul(ah0, bl1)) | 0; - hi = (hi + Math.imul(ah0, bh1)) | 0; - var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0; - w1 &= 0x3ffffff; - /* k = 2 */ - lo = Math.imul(al2, bl0); - mid = Math.imul(al2, bh0); - mid = (mid + Math.imul(ah2, bl0)) | 0; - hi = Math.imul(ah2, bh0); - lo = (lo + Math.imul(al1, bl1)) | 0; - mid = (mid + Math.imul(al1, bh1)) | 0; - mid = (mid + Math.imul(ah1, bl1)) | 0; - hi = (hi + Math.imul(ah1, bh1)) | 0; - lo = (lo + Math.imul(al0, bl2)) | 0; - mid = (mid + Math.imul(al0, bh2)) | 0; - mid = (mid + Math.imul(ah0, bl2)) | 0; - hi = (hi + Math.imul(ah0, bh2)) | 0; - var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0; - w2 &= 0x3ffffff; - /* k = 3 */ - lo = Math.imul(al3, bl0); - mid = Math.imul(al3, bh0); - mid = (mid + Math.imul(ah3, bl0)) | 0; - hi = Math.imul(ah3, bh0); - lo = (lo + Math.imul(al2, bl1)) | 0; - mid = (mid + Math.imul(al2, bh1)) | 0; - mid = (mid + Math.imul(ah2, bl1)) | 0; - hi = (hi + Math.imul(ah2, bh1)) | 0; - lo = (lo + Math.imul(al1, bl2)) | 0; - mid = (mid + Math.imul(al1, bh2)) | 0; - mid = (mid + Math.imul(ah1, bl2)) | 0; - hi = (hi + Math.imul(ah1, bh2)) | 0; - lo = (lo + Math.imul(al0, bl3)) | 0; - mid = (mid + Math.imul(al0, bh3)) | 0; - mid = (mid + Math.imul(ah0, bl3)) | 0; - hi = (hi + Math.imul(ah0, bh3)) | 0; - var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0; - w3 &= 0x3ffffff; - /* k = 4 */ - lo = Math.imul(al4, bl0); - mid = Math.imul(al4, bh0); - mid = (mid + Math.imul(ah4, bl0)) | 0; - hi = Math.imul(ah4, bh0); - lo = (lo + Math.imul(al3, bl1)) | 0; - mid = (mid + Math.imul(al3, bh1)) | 0; - mid = (mid + Math.imul(ah3, bl1)) | 0; - hi = (hi + Math.imul(ah3, bh1)) | 0; - lo = (lo + Math.imul(al2, bl2)) | 0; - mid = (mid + Math.imul(al2, bh2)) | 0; - mid = (mid + Math.imul(ah2, bl2)) | 0; - hi = (hi + Math.imul(ah2, bh2)) | 0; - lo = (lo + Math.imul(al1, bl3)) | 0; - mid = (mid + Math.imul(al1, bh3)) | 0; - mid = (mid + Math.imul(ah1, bl3)) | 0; - hi = (hi + Math.imul(ah1, bh3)) | 0; - lo = (lo + Math.imul(al0, bl4)) | 0; - mid = (mid + Math.imul(al0, bh4)) | 0; - mid = (mid + Math.imul(ah0, bl4)) | 0; - hi = (hi + Math.imul(ah0, bh4)) | 0; - var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0; - w4 &= 0x3ffffff; - /* k = 5 */ - lo = Math.imul(al5, bl0); - mid = Math.imul(al5, bh0); - mid = (mid + Math.imul(ah5, bl0)) | 0; - hi = Math.imul(ah5, bh0); - lo = (lo + Math.imul(al4, bl1)) | 0; - mid = (mid + Math.imul(al4, bh1)) | 0; - mid = (mid + Math.imul(ah4, bl1)) | 0; - hi = (hi + Math.imul(ah4, bh1)) | 0; - lo = (lo + Math.imul(al3, bl2)) | 0; - mid = (mid + Math.imul(al3, bh2)) | 0; - mid = (mid + Math.imul(ah3, bl2)) | 0; - hi = (hi + Math.imul(ah3, bh2)) | 0; - lo = (lo + Math.imul(al2, bl3)) | 0; - mid = (mid + Math.imul(al2, bh3)) | 0; - mid = (mid + Math.imul(ah2, bl3)) | 0; - hi = (hi + Math.imul(ah2, bh3)) | 0; - lo = (lo + Math.imul(al1, bl4)) | 0; - mid = (mid + Math.imul(al1, bh4)) | 0; - mid = (mid + Math.imul(ah1, bl4)) | 0; - hi = (hi + Math.imul(ah1, bh4)) | 0; - lo = (lo + Math.imul(al0, bl5)) | 0; - mid = (mid + Math.imul(al0, bh5)) | 0; - mid = (mid + Math.imul(ah0, bl5)) | 0; - hi = (hi + Math.imul(ah0, bh5)) | 0; - var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0; - w5 &= 0x3ffffff; - /* k = 6 */ - lo = Math.imul(al6, bl0); - mid = Math.imul(al6, bh0); - mid = (mid + Math.imul(ah6, bl0)) | 0; - hi = Math.imul(ah6, bh0); - lo = (lo + Math.imul(al5, bl1)) | 0; - mid = (mid + Math.imul(al5, bh1)) | 0; - mid = (mid + Math.imul(ah5, bl1)) | 0; - hi = (hi + Math.imul(ah5, bh1)) | 0; - lo = (lo + Math.imul(al4, bl2)) | 0; - mid = (mid + Math.imul(al4, bh2)) | 0; - mid = (mid + Math.imul(ah4, bl2)) | 0; - hi = (hi + Math.imul(ah4, bh2)) | 0; - lo = (lo + Math.imul(al3, bl3)) | 0; - mid = (mid + Math.imul(al3, bh3)) | 0; - mid = (mid + Math.imul(ah3, bl3)) | 0; - hi = (hi + Math.imul(ah3, bh3)) | 0; - lo = (lo + Math.imul(al2, bl4)) | 0; - mid = (mid + Math.imul(al2, bh4)) | 0; - mid = (mid + Math.imul(ah2, bl4)) | 0; - hi = (hi + Math.imul(ah2, bh4)) | 0; - lo = (lo + Math.imul(al1, bl5)) | 0; - mid = (mid + Math.imul(al1, bh5)) | 0; - mid = (mid + Math.imul(ah1, bl5)) | 0; - hi = (hi + Math.imul(ah1, bh5)) | 0; - lo = (lo + Math.imul(al0, bl6)) | 0; - mid = (mid + Math.imul(al0, bh6)) | 0; - mid = (mid + Math.imul(ah0, bl6)) | 0; - hi = (hi + Math.imul(ah0, bh6)) | 0; - var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0; - w6 &= 0x3ffffff; - /* k = 7 */ - lo = Math.imul(al7, bl0); - mid = Math.imul(al7, bh0); - mid = (mid + Math.imul(ah7, bl0)) | 0; - hi = Math.imul(ah7, bh0); - lo = (lo + Math.imul(al6, bl1)) | 0; - mid = (mid + Math.imul(al6, bh1)) | 0; - mid = (mid + Math.imul(ah6, bl1)) | 0; - hi = (hi + Math.imul(ah6, bh1)) | 0; - lo = (lo + Math.imul(al5, bl2)) | 0; - mid = (mid + Math.imul(al5, bh2)) | 0; - mid = (mid + Math.imul(ah5, bl2)) | 0; - hi = (hi + Math.imul(ah5, bh2)) | 0; - lo = (lo + Math.imul(al4, bl3)) | 0; - mid = (mid + Math.imul(al4, bh3)) | 0; - mid = (mid + Math.imul(ah4, bl3)) | 0; - hi = (hi + Math.imul(ah4, bh3)) | 0; - lo = (lo + Math.imul(al3, bl4)) | 0; - mid = (mid + Math.imul(al3, bh4)) | 0; - mid = (mid + Math.imul(ah3, bl4)) | 0; - hi = (hi + Math.imul(ah3, bh4)) | 0; - lo = (lo + Math.imul(al2, bl5)) | 0; - mid = (mid + Math.imul(al2, bh5)) | 0; - mid = (mid + Math.imul(ah2, bl5)) | 0; - hi = (hi + Math.imul(ah2, bh5)) | 0; - lo = (lo + Math.imul(al1, bl6)) | 0; - mid = (mid + Math.imul(al1, bh6)) | 0; - mid = (mid + Math.imul(ah1, bl6)) | 0; - hi = (hi + Math.imul(ah1, bh6)) | 0; - lo = (lo + Math.imul(al0, bl7)) | 0; - mid = (mid + Math.imul(al0, bh7)) | 0; - mid = (mid + Math.imul(ah0, bl7)) | 0; - hi = (hi + Math.imul(ah0, bh7)) | 0; - var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0; - w7 &= 0x3ffffff; - /* k = 8 */ - lo = Math.imul(al8, bl0); - mid = Math.imul(al8, bh0); - mid = (mid + Math.imul(ah8, bl0)) | 0; - hi = Math.imul(ah8, bh0); - lo = (lo + Math.imul(al7, bl1)) | 0; - mid = (mid + Math.imul(al7, bh1)) | 0; - mid = (mid + Math.imul(ah7, bl1)) | 0; - hi = (hi + Math.imul(ah7, bh1)) | 0; - lo = (lo + Math.imul(al6, bl2)) | 0; - mid = (mid + Math.imul(al6, bh2)) | 0; - mid = (mid + Math.imul(ah6, bl2)) | 0; - hi = (hi + Math.imul(ah6, bh2)) | 0; - lo = (lo + Math.imul(al5, bl3)) | 0; - mid = (mid + Math.imul(al5, bh3)) | 0; - mid = (mid + Math.imul(ah5, bl3)) | 0; - hi = (hi + Math.imul(ah5, bh3)) | 0; - lo = (lo + Math.imul(al4, bl4)) | 0; - mid = (mid + Math.imul(al4, bh4)) | 0; - mid = (mid + Math.imul(ah4, bl4)) | 0; - hi = (hi + Math.imul(ah4, bh4)) | 0; - lo = (lo + Math.imul(al3, bl5)) | 0; - mid = (mid + Math.imul(al3, bh5)) | 0; - mid = (mid + Math.imul(ah3, bl5)) | 0; - hi = (hi + Math.imul(ah3, bh5)) | 0; - lo = (lo + Math.imul(al2, bl6)) | 0; - mid = (mid + Math.imul(al2, bh6)) | 0; - mid = (mid + Math.imul(ah2, bl6)) | 0; - hi = (hi + Math.imul(ah2, bh6)) | 0; - lo = (lo + Math.imul(al1, bl7)) | 0; - mid = (mid + Math.imul(al1, bh7)) | 0; - mid = (mid + Math.imul(ah1, bl7)) | 0; - hi = (hi + Math.imul(ah1, bh7)) | 0; - lo = (lo + Math.imul(al0, bl8)) | 0; - mid = (mid + Math.imul(al0, bh8)) | 0; - mid = (mid + Math.imul(ah0, bl8)) | 0; - hi = (hi + Math.imul(ah0, bh8)) | 0; - var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0; - w8 &= 0x3ffffff; - /* k = 9 */ - lo = Math.imul(al9, bl0); - mid = Math.imul(al9, bh0); - mid = (mid + Math.imul(ah9, bl0)) | 0; - hi = Math.imul(ah9, bh0); - lo = (lo + Math.imul(al8, bl1)) | 0; - mid = (mid + Math.imul(al8, bh1)) | 0; - mid = (mid + Math.imul(ah8, bl1)) | 0; - hi = (hi + Math.imul(ah8, bh1)) | 0; - lo = (lo + Math.imul(al7, bl2)) | 0; - mid = (mid + Math.imul(al7, bh2)) | 0; - mid = (mid + Math.imul(ah7, bl2)) | 0; - hi = (hi + Math.imul(ah7, bh2)) | 0; - lo = (lo + Math.imul(al6, bl3)) | 0; - mid = (mid + Math.imul(al6, bh3)) | 0; - mid = (mid + Math.imul(ah6, bl3)) | 0; - hi = (hi + Math.imul(ah6, bh3)) | 0; - lo = (lo + Math.imul(al5, bl4)) | 0; - mid = (mid + Math.imul(al5, bh4)) | 0; - mid = (mid + Math.imul(ah5, bl4)) | 0; - hi = (hi + Math.imul(ah5, bh4)) | 0; - lo = (lo + Math.imul(al4, bl5)) | 0; - mid = (mid + Math.imul(al4, bh5)) | 0; - mid = (mid + Math.imul(ah4, bl5)) | 0; - hi = (hi + Math.imul(ah4, bh5)) | 0; - lo = (lo + Math.imul(al3, bl6)) | 0; - mid = (mid + Math.imul(al3, bh6)) | 0; - mid = (mid + Math.imul(ah3, bl6)) | 0; - hi = (hi + Math.imul(ah3, bh6)) | 0; - lo = (lo + Math.imul(al2, bl7)) | 0; - mid = (mid + Math.imul(al2, bh7)) | 0; - mid = (mid + Math.imul(ah2, bl7)) | 0; - hi = (hi + Math.imul(ah2, bh7)) | 0; - lo = (lo + Math.imul(al1, bl8)) | 0; - mid = (mid + Math.imul(al1, bh8)) | 0; - mid = (mid + Math.imul(ah1, bl8)) | 0; - hi = (hi + Math.imul(ah1, bh8)) | 0; - lo = (lo + Math.imul(al0, bl9)) | 0; - mid = (mid + Math.imul(al0, bh9)) | 0; - mid = (mid + Math.imul(ah0, bl9)) | 0; - hi = (hi + Math.imul(ah0, bh9)) | 0; - var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0; - w9 &= 0x3ffffff; - /* k = 10 */ - lo = Math.imul(al9, bl1); - mid = Math.imul(al9, bh1); - mid = (mid + Math.imul(ah9, bl1)) | 0; - hi = Math.imul(ah9, bh1); - lo = (lo + Math.imul(al8, bl2)) | 0; - mid = (mid + Math.imul(al8, bh2)) | 0; - mid = (mid + Math.imul(ah8, bl2)) | 0; - hi = (hi + Math.imul(ah8, bh2)) | 0; - lo = (lo + Math.imul(al7, bl3)) | 0; - mid = (mid + Math.imul(al7, bh3)) | 0; - mid = (mid + Math.imul(ah7, bl3)) | 0; - hi = (hi + Math.imul(ah7, bh3)) | 0; - lo = (lo + Math.imul(al6, bl4)) | 0; - mid = (mid + Math.imul(al6, bh4)) | 0; - mid = (mid + Math.imul(ah6, bl4)) | 0; - hi = (hi + Math.imul(ah6, bh4)) | 0; - lo = (lo + Math.imul(al5, bl5)) | 0; - mid = (mid + Math.imul(al5, bh5)) | 0; - mid = (mid + Math.imul(ah5, bl5)) | 0; - hi = (hi + Math.imul(ah5, bh5)) | 0; - lo = (lo + Math.imul(al4, bl6)) | 0; - mid = (mid + Math.imul(al4, bh6)) | 0; - mid = (mid + Math.imul(ah4, bl6)) | 0; - hi = (hi + Math.imul(ah4, bh6)) | 0; - lo = (lo + Math.imul(al3, bl7)) | 0; - mid = (mid + Math.imul(al3, bh7)) | 0; - mid = (mid + Math.imul(ah3, bl7)) | 0; - hi = (hi + Math.imul(ah3, bh7)) | 0; - lo = (lo + Math.imul(al2, bl8)) | 0; - mid = (mid + Math.imul(al2, bh8)) | 0; - mid = (mid + Math.imul(ah2, bl8)) | 0; - hi = (hi + Math.imul(ah2, bh8)) | 0; - lo = (lo + Math.imul(al1, bl9)) | 0; - mid = (mid + Math.imul(al1, bh9)) | 0; - mid = (mid + Math.imul(ah1, bl9)) | 0; - hi = (hi + Math.imul(ah1, bh9)) | 0; - var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0; - w10 &= 0x3ffffff; - /* k = 11 */ - lo = Math.imul(al9, bl2); - mid = Math.imul(al9, bh2); - mid = (mid + Math.imul(ah9, bl2)) | 0; - hi = Math.imul(ah9, bh2); - lo = (lo + Math.imul(al8, bl3)) | 0; - mid = (mid + Math.imul(al8, bh3)) | 0; - mid = (mid + Math.imul(ah8, bl3)) | 0; - hi = (hi + Math.imul(ah8, bh3)) | 0; - lo = (lo + Math.imul(al7, bl4)) | 0; - mid = (mid + Math.imul(al7, bh4)) | 0; - mid = (mid + Math.imul(ah7, bl4)) | 0; - hi = (hi + Math.imul(ah7, bh4)) | 0; - lo = (lo + Math.imul(al6, bl5)) | 0; - mid = (mid + Math.imul(al6, bh5)) | 0; - mid = (mid + Math.imul(ah6, bl5)) | 0; - hi = (hi + Math.imul(ah6, bh5)) | 0; - lo = (lo + Math.imul(al5, bl6)) | 0; - mid = (mid + Math.imul(al5, bh6)) | 0; - mid = (mid + Math.imul(ah5, bl6)) | 0; - hi = (hi + Math.imul(ah5, bh6)) | 0; - lo = (lo + Math.imul(al4, bl7)) | 0; - mid = (mid + Math.imul(al4, bh7)) | 0; - mid = (mid + Math.imul(ah4, bl7)) | 0; - hi = (hi + Math.imul(ah4, bh7)) | 0; - lo = (lo + Math.imul(al3, bl8)) | 0; - mid = (mid + Math.imul(al3, bh8)) | 0; - mid = (mid + Math.imul(ah3, bl8)) | 0; - hi = (hi + Math.imul(ah3, bh8)) | 0; - lo = (lo + Math.imul(al2, bl9)) | 0; - mid = (mid + Math.imul(al2, bh9)) | 0; - mid = (mid + Math.imul(ah2, bl9)) | 0; - hi = (hi + Math.imul(ah2, bh9)) | 0; - var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0; - w11 &= 0x3ffffff; - /* k = 12 */ - lo = Math.imul(al9, bl3); - mid = Math.imul(al9, bh3); - mid = (mid + Math.imul(ah9, bl3)) | 0; - hi = Math.imul(ah9, bh3); - lo = (lo + Math.imul(al8, bl4)) | 0; - mid = (mid + Math.imul(al8, bh4)) | 0; - mid = (mid + Math.imul(ah8, bl4)) | 0; - hi = (hi + Math.imul(ah8, bh4)) | 0; - lo = (lo + Math.imul(al7, bl5)) | 0; - mid = (mid + Math.imul(al7, bh5)) | 0; - mid = (mid + Math.imul(ah7, bl5)) | 0; - hi = (hi + Math.imul(ah7, bh5)) | 0; - lo = (lo + Math.imul(al6, bl6)) | 0; - mid = (mid + Math.imul(al6, bh6)) | 0; - mid = (mid + Math.imul(ah6, bl6)) | 0; - hi = (hi + Math.imul(ah6, bh6)) | 0; - lo = (lo + Math.imul(al5, bl7)) | 0; - mid = (mid + Math.imul(al5, bh7)) | 0; - mid = (mid + Math.imul(ah5, bl7)) | 0; - hi = (hi + Math.imul(ah5, bh7)) | 0; - lo = (lo + Math.imul(al4, bl8)) | 0; - mid = (mid + Math.imul(al4, bh8)) | 0; - mid = (mid + Math.imul(ah4, bl8)) | 0; - hi = (hi + Math.imul(ah4, bh8)) | 0; - lo = (lo + Math.imul(al3, bl9)) | 0; - mid = (mid + Math.imul(al3, bh9)) | 0; - mid = (mid + Math.imul(ah3, bl9)) | 0; - hi = (hi + Math.imul(ah3, bh9)) | 0; - var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0; - w12 &= 0x3ffffff; - /* k = 13 */ - lo = Math.imul(al9, bl4); - mid = Math.imul(al9, bh4); - mid = (mid + Math.imul(ah9, bl4)) | 0; - hi = Math.imul(ah9, bh4); - lo = (lo + Math.imul(al8, bl5)) | 0; - mid = (mid + Math.imul(al8, bh5)) | 0; - mid = (mid + Math.imul(ah8, bl5)) | 0; - hi = (hi + Math.imul(ah8, bh5)) | 0; - lo = (lo + Math.imul(al7, bl6)) | 0; - mid = (mid + Math.imul(al7, bh6)) | 0; - mid = (mid + Math.imul(ah7, bl6)) | 0; - hi = (hi + Math.imul(ah7, bh6)) | 0; - lo = (lo + Math.imul(al6, bl7)) | 0; - mid = (mid + Math.imul(al6, bh7)) | 0; - mid = (mid + Math.imul(ah6, bl7)) | 0; - hi = (hi + Math.imul(ah6, bh7)) | 0; - lo = (lo + Math.imul(al5, bl8)) | 0; - mid = (mid + Math.imul(al5, bh8)) | 0; - mid = (mid + Math.imul(ah5, bl8)) | 0; - hi = (hi + Math.imul(ah5, bh8)) | 0; - lo = (lo + Math.imul(al4, bl9)) | 0; - mid = (mid + Math.imul(al4, bh9)) | 0; - mid = (mid + Math.imul(ah4, bl9)) | 0; - hi = (hi + Math.imul(ah4, bh9)) | 0; - var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0; - w13 &= 0x3ffffff; - /* k = 14 */ - lo = Math.imul(al9, bl5); - mid = Math.imul(al9, bh5); - mid = (mid + Math.imul(ah9, bl5)) | 0; - hi = Math.imul(ah9, bh5); - lo = (lo + Math.imul(al8, bl6)) | 0; - mid = (mid + Math.imul(al8, bh6)) | 0; - mid = (mid + Math.imul(ah8, bl6)) | 0; - hi = (hi + Math.imul(ah8, bh6)) | 0; - lo = (lo + Math.imul(al7, bl7)) | 0; - mid = (mid + Math.imul(al7, bh7)) | 0; - mid = (mid + Math.imul(ah7, bl7)) | 0; - hi = (hi + Math.imul(ah7, bh7)) | 0; - lo = (lo + Math.imul(al6, bl8)) | 0; - mid = (mid + Math.imul(al6, bh8)) | 0; - mid = (mid + Math.imul(ah6, bl8)) | 0; - hi = (hi + Math.imul(ah6, bh8)) | 0; - lo = (lo + Math.imul(al5, bl9)) | 0; - mid = (mid + Math.imul(al5, bh9)) | 0; - mid = (mid + Math.imul(ah5, bl9)) | 0; - hi = (hi + Math.imul(ah5, bh9)) | 0; - var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0; - w14 &= 0x3ffffff; - /* k = 15 */ - lo = Math.imul(al9, bl6); - mid = Math.imul(al9, bh6); - mid = (mid + Math.imul(ah9, bl6)) | 0; - hi = Math.imul(ah9, bh6); - lo = (lo + Math.imul(al8, bl7)) | 0; - mid = (mid + Math.imul(al8, bh7)) | 0; - mid = (mid + Math.imul(ah8, bl7)) | 0; - hi = (hi + Math.imul(ah8, bh7)) | 0; - lo = (lo + Math.imul(al7, bl8)) | 0; - mid = (mid + Math.imul(al7, bh8)) | 0; - mid = (mid + Math.imul(ah7, bl8)) | 0; - hi = (hi + Math.imul(ah7, bh8)) | 0; - lo = (lo + Math.imul(al6, bl9)) | 0; - mid = (mid + Math.imul(al6, bh9)) | 0; - mid = (mid + Math.imul(ah6, bl9)) | 0; - hi = (hi + Math.imul(ah6, bh9)) | 0; - var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0; - w15 &= 0x3ffffff; - /* k = 16 */ - lo = Math.imul(al9, bl7); - mid = Math.imul(al9, bh7); - mid = (mid + Math.imul(ah9, bl7)) | 0; - hi = Math.imul(ah9, bh7); - lo = (lo + Math.imul(al8, bl8)) | 0; - mid = (mid + Math.imul(al8, bh8)) | 0; - mid = (mid + Math.imul(ah8, bl8)) | 0; - hi = (hi + Math.imul(ah8, bh8)) | 0; - lo = (lo + Math.imul(al7, bl9)) | 0; - mid = (mid + Math.imul(al7, bh9)) | 0; - mid = (mid + Math.imul(ah7, bl9)) | 0; - hi = (hi + Math.imul(ah7, bh9)) | 0; - var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0; - w16 &= 0x3ffffff; - /* k = 17 */ - lo = Math.imul(al9, bl8); - mid = Math.imul(al9, bh8); - mid = (mid + Math.imul(ah9, bl8)) | 0; - hi = Math.imul(ah9, bh8); - lo = (lo + Math.imul(al8, bl9)) | 0; - mid = (mid + Math.imul(al8, bh9)) | 0; - mid = (mid + Math.imul(ah8, bl9)) | 0; - hi = (hi + Math.imul(ah8, bh9)) | 0; - var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0; - w17 &= 0x3ffffff; - /* k = 18 */ - lo = Math.imul(al9, bl9); - mid = Math.imul(al9, bh9); - mid = (mid + Math.imul(ah9, bl9)) | 0; - hi = Math.imul(ah9, bh9); - var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0; - w18 &= 0x3ffffff; - o[0] = w0; - o[1] = w1; - o[2] = w2; - o[3] = w3; - o[4] = w4; - o[5] = w5; - o[6] = w6; - o[7] = w7; - o[8] = w8; - o[9] = w9; - o[10] = w10; - o[11] = w11; - o[12] = w12; - o[13] = w13; - o[14] = w14; - o[15] = w15; - o[16] = w16; - o[17] = w17; - o[18] = w18; - if (c !== 0) { - o[19] = c; - out.length++; - } - return out; - }; - - // Polyfill comb - if (!Math.imul) { - comb10MulTo = smallMulTo; - } - - function bigMulTo (self, num, out) { - out.negative = num.negative ^ self.negative; - out.length = self.length + num.length; - - var carry = 0; - var hncarry = 0; - for (var k = 0; k < out.length - 1; k++) { - // Sum all words with the same `i + j = k` and accumulate `ncarry`, - // note that ncarry could be >= 0x3ffffff - var ncarry = hncarry; - hncarry = 0; - var rword = carry & 0x3ffffff; - var maxJ = Math.min(k, num.length - 1); - for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { - var i = k - j; - var a = self.words[i] | 0; - var b = num.words[j] | 0; - var r = a * b; - - var lo = r & 0x3ffffff; - ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0; - lo = (lo + rword) | 0; - rword = lo & 0x3ffffff; - ncarry = (ncarry + (lo >>> 26)) | 0; - - hncarry += ncarry >>> 26; - ncarry &= 0x3ffffff; - } - out.words[k] = rword; - carry = ncarry; - ncarry = hncarry; - } - if (carry !== 0) { - out.words[k] = carry; - } else { - out.length--; - } - - return out.strip(); - } - - function jumboMulTo (self, num, out) { - var fftm = new FFTM(); - return fftm.mulp(self, num, out); - } - - BN.prototype.mulTo = function mulTo (num, out) { - var res; - var len = this.length + num.length; - if (this.length === 10 && num.length === 10) { - res = comb10MulTo(this, num, out); - } else if (len < 63) { - res = smallMulTo(this, num, out); - } else if (len < 1024) { - res = bigMulTo(this, num, out); - } else { - res = jumboMulTo(this, num, out); - } - - return res; - }; - - // Cooley-Tukey algorithm for FFT - // slightly revisited to rely on looping instead of recursion - - function FFTM (x, y) { - this.x = x; - this.y = y; - } - - FFTM.prototype.makeRBT = function makeRBT (N) { - var t = new Array(N); - var l = BN.prototype._countBits(N) - 1; - for (var i = 0; i < N; i++) { - t[i] = this.revBin(i, l, N); - } - - return t; - }; - - // Returns binary-reversed representation of `x` - FFTM.prototype.revBin = function revBin (x, l, N) { - if (x === 0 || x === N - 1) return x; - - var rb = 0; - for (var i = 0; i < l; i++) { - rb |= (x & 1) << (l - i - 1); - x >>= 1; - } - - return rb; - }; - - // Performs "tweedling" phase, therefore 'emulating' - // behaviour of the recursive algorithm - FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) { - for (var i = 0; i < N; i++) { - rtws[i] = rws[rbt[i]]; - itws[i] = iws[rbt[i]]; - } - }; - - FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) { - this.permute(rbt, rws, iws, rtws, itws, N); - - for (var s = 1; s < N; s <<= 1) { - var l = s << 1; - - var rtwdf = Math.cos(2 * Math.PI / l); - var itwdf = Math.sin(2 * Math.PI / l); - - for (var p = 0; p < N; p += l) { - var rtwdf_ = rtwdf; - var itwdf_ = itwdf; - - for (var j = 0; j < s; j++) { - var re = rtws[p + j]; - var ie = itws[p + j]; - - var ro = rtws[p + j + s]; - var io = itws[p + j + s]; - - var rx = rtwdf_ * ro - itwdf_ * io; - - io = rtwdf_ * io + itwdf_ * ro; - ro = rx; - - rtws[p + j] = re + ro; - itws[p + j] = ie + io; - - rtws[p + j + s] = re - ro; - itws[p + j + s] = ie - io; - - /* jshint maxdepth : false */ - if (j !== l) { - rx = rtwdf * rtwdf_ - itwdf * itwdf_; - - itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_; - rtwdf_ = rx; - } - } - } - } - }; - - FFTM.prototype.guessLen13b = function guessLen13b (n, m) { - var N = Math.max(m, n) | 1; - var odd = N & 1; - var i = 0; - for (N = N / 2 | 0; N; N = N >>> 1) { - i++; - } - - return 1 << i + 1 + odd; - }; - - FFTM.prototype.conjugate = function conjugate (rws, iws, N) { - if (N <= 1) return; - - for (var i = 0; i < N / 2; i++) { - var t = rws[i]; - - rws[i] = rws[N - i - 1]; - rws[N - i - 1] = t; - - t = iws[i]; - - iws[i] = -iws[N - i - 1]; - iws[N - i - 1] = -t; - } - }; - - FFTM.prototype.normalize13b = function normalize13b (ws, N) { - var carry = 0; - for (var i = 0; i < N / 2; i++) { - var w = Math.round(ws[2 * i + 1] / N) * 0x2000 + - Math.round(ws[2 * i] / N) + - carry; - - ws[i] = w & 0x3ffffff; - - if (w < 0x4000000) { - carry = 0; - } else { - carry = w / 0x4000000 | 0; - } - } - - return ws; - }; - - FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) { - var carry = 0; - for (var i = 0; i < len; i++) { - carry = carry + (ws[i] | 0); - - rws[2 * i] = carry & 0x1fff; carry = carry >>> 13; - rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13; - } - - // Pad with zeroes - for (i = 2 * len; i < N; ++i) { - rws[i] = 0; - } - - assert(carry === 0); - assert((carry & ~0x1fff) === 0); - }; - - FFTM.prototype.stub = function stub (N) { - var ph = new Array(N); - for (var i = 0; i < N; i++) { - ph[i] = 0; - } - - return ph; - }; - - FFTM.prototype.mulp = function mulp (x, y, out) { - var N = 2 * this.guessLen13b(x.length, y.length); - - var rbt = this.makeRBT(N); - - var _ = this.stub(N); - - var rws = new Array(N); - var rwst = new Array(N); - var iwst = new Array(N); - - var nrws = new Array(N); - var nrwst = new Array(N); - var niwst = new Array(N); - - var rmws = out.words; - rmws.length = N; - - this.convert13b(x.words, x.length, rws, N); - this.convert13b(y.words, y.length, nrws, N); - - this.transform(rws, _, rwst, iwst, N, rbt); - this.transform(nrws, _, nrwst, niwst, N, rbt); - - for (var i = 0; i < N; i++) { - var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i]; - iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i]; - rwst[i] = rx; - } - - this.conjugate(rwst, iwst, N); - this.transform(rwst, iwst, rmws, _, N, rbt); - this.conjugate(rmws, _, N); - this.normalize13b(rmws, N); - - out.negative = x.negative ^ y.negative; - out.length = x.length + y.length; - return out.strip(); - }; - - // Multiply `this` by `num` - BN.prototype.mul = function mul (num) { - var out = new BN(null); - out.words = new Array(this.length + num.length); - return this.mulTo(num, out); - }; - - // Multiply employing FFT - BN.prototype.mulf = function mulf (num) { - var out = new BN(null); - out.words = new Array(this.length + num.length); - return jumboMulTo(this, num, out); - }; - - // In-place Multiplication - BN.prototype.imul = function imul (num) { - return this.clone().mulTo(num, this); - }; - - BN.prototype.imuln = function imuln (num) { - assert(typeof num === 'number'); - assert(num < 0x4000000); - - // Carry - var carry = 0; - for (var i = 0; i < this.length; i++) { - var w = (this.words[i] | 0) * num; - var lo = (w & 0x3ffffff) + (carry & 0x3ffffff); - carry >>= 26; - carry += (w / 0x4000000) | 0; - // NOTE: lo is 27bit maximum - carry += lo >>> 26; - this.words[i] = lo & 0x3ffffff; - } - - if (carry !== 0) { - this.words[i] = carry; - this.length++; - } - - return this; - }; - - BN.prototype.muln = function muln (num) { - return this.clone().imuln(num); - }; - - // `this` * `this` - BN.prototype.sqr = function sqr () { - return this.mul(this); - }; - - // `this` * `this` in-place - BN.prototype.isqr = function isqr () { - return this.imul(this.clone()); - }; - - // Math.pow(`this`, `num`) - BN.prototype.pow = function pow (num) { - var w = toBitArray(num); - if (w.length === 0) return new BN(1); - - // Skip leading zeroes - var res = this; - for (var i = 0; i < w.length; i++, res = res.sqr()) { - if (w[i] !== 0) break; - } - - if (++i < w.length) { - for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) { - if (w[i] === 0) continue; - - res = res.mul(q); - } - } - - return res; - }; - - // Shift-left in-place - BN.prototype.iushln = function iushln (bits) { - assert(typeof bits === 'number' && bits >= 0); - var r = bits % 26; - var s = (bits - r) / 26; - var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r); - var i; - - if (r !== 0) { - var carry = 0; - - for (i = 0; i < this.length; i++) { - var newCarry = this.words[i] & carryMask; - var c = ((this.words[i] | 0) - newCarry) << r; - this.words[i] = c | carry; - carry = newCarry >>> (26 - r); - } - - if (carry) { - this.words[i] = carry; - this.length++; - } - } - - if (s !== 0) { - for (i = this.length - 1; i >= 0; i--) { - this.words[i + s] = this.words[i]; - } - - for (i = 0; i < s; i++) { - this.words[i] = 0; - } - - this.length += s; - } - - return this.strip(); - }; - - BN.prototype.ishln = function ishln (bits) { - // TODO(indutny): implement me - assert(this.negative === 0); - return this.iushln(bits); - }; - - // Shift-right in-place - // NOTE: `hint` is a lowest bit before trailing zeroes - // NOTE: if `extended` is present - it will be filled with destroyed bits - BN.prototype.iushrn = function iushrn (bits, hint, extended) { - assert(typeof bits === 'number' && bits >= 0); - var h; - if (hint) { - h = (hint - (hint % 26)) / 26; - } else { - h = 0; - } - - var r = bits % 26; - var s = Math.min((bits - r) / 26, this.length); - var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); - var maskedWords = extended; - - h -= s; - h = Math.max(0, h); - - // Extended mode, copy masked part - if (maskedWords) { - for (var i = 0; i < s; i++) { - maskedWords.words[i] = this.words[i]; - } - maskedWords.length = s; - } - - if (s === 0) { - // No-op, we should not move anything at all - } else if (this.length > s) { - this.length -= s; - for (i = 0; i < this.length; i++) { - this.words[i] = this.words[i + s]; - } - } else { - this.words[0] = 0; - this.length = 1; - } - - var carry = 0; - for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) { - var word = this.words[i] | 0; - this.words[i] = (carry << (26 - r)) | (word >>> r); - carry = word & mask; - } - - // Push carried bits as a mask - if (maskedWords && carry !== 0) { - maskedWords.words[maskedWords.length++] = carry; - } - - if (this.length === 0) { - this.words[0] = 0; - this.length = 1; - } - - return this.strip(); - }; - - BN.prototype.ishrn = function ishrn (bits, hint, extended) { - // TODO(indutny): implement me - assert(this.negative === 0); - return this.iushrn(bits, hint, extended); - }; - - // Shift-left - BN.prototype.shln = function shln (bits) { - return this.clone().ishln(bits); - }; - - BN.prototype.ushln = function ushln (bits) { - return this.clone().iushln(bits); - }; - - // Shift-right - BN.prototype.shrn = function shrn (bits) { - return this.clone().ishrn(bits); - }; - - BN.prototype.ushrn = function ushrn (bits) { - return this.clone().iushrn(bits); - }; - - // Test if n bit is set - BN.prototype.testn = function testn (bit) { - assert(typeof bit === 'number' && bit >= 0); - var r = bit % 26; - var s = (bit - r) / 26; - var q = 1 << r; - - // Fast case: bit is much higher than all existing words - if (this.length <= s) return false; - - // Check bit and return - var w = this.words[s]; - - return !!(w & q); - }; - - // Return only lowers bits of number (in-place) - BN.prototype.imaskn = function imaskn (bits) { - assert(typeof bits === 'number' && bits >= 0); - var r = bits % 26; - var s = (bits - r) / 26; - - assert(this.negative === 0, 'imaskn works only with positive numbers'); - - if (this.length <= s) { - return this; - } - - if (r !== 0) { - s++; - } - this.length = Math.min(s, this.length); - - if (r !== 0) { - var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); - this.words[this.length - 1] &= mask; - } - - return this.strip(); - }; - - // Return only lowers bits of number - BN.prototype.maskn = function maskn (bits) { - return this.clone().imaskn(bits); - }; - - // Add plain number `num` to `this` - BN.prototype.iaddn = function iaddn (num) { - assert(typeof num === 'number'); - assert(num < 0x4000000); - if (num < 0) return this.isubn(-num); - - // Possible sign change - if (this.negative !== 0) { - if (this.length === 1 && (this.words[0] | 0) < num) { - this.words[0] = num - (this.words[0] | 0); - this.negative = 0; - return this; - } - - this.negative = 0; - this.isubn(num); - this.negative = 1; - return this; - } - - // Add without checks - return this._iaddn(num); - }; - - BN.prototype._iaddn = function _iaddn (num) { - this.words[0] += num; - - // Carry - for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) { - this.words[i] -= 0x4000000; - if (i === this.length - 1) { - this.words[i + 1] = 1; - } else { - this.words[i + 1]++; - } - } - this.length = Math.max(this.length, i + 1); - - return this; - }; - - // Subtract plain number `num` from `this` - BN.prototype.isubn = function isubn (num) { - assert(typeof num === 'number'); - assert(num < 0x4000000); - if (num < 0) return this.iaddn(-num); - - if (this.negative !== 0) { - this.negative = 0; - this.iaddn(num); - this.negative = 1; - return this; - } - - this.words[0] -= num; - - if (this.length === 1 && this.words[0] < 0) { - this.words[0] = -this.words[0]; - this.negative = 1; - } else { - // Carry - for (var i = 0; i < this.length && this.words[i] < 0; i++) { - this.words[i] += 0x4000000; - this.words[i + 1] -= 1; - } - } - - return this.strip(); - }; - - BN.prototype.addn = function addn (num) { - return this.clone().iaddn(num); - }; - - BN.prototype.subn = function subn (num) { - return this.clone().isubn(num); - }; - - BN.prototype.iabs = function iabs () { - this.negative = 0; - - return this; - }; - - BN.prototype.abs = function abs () { - return this.clone().iabs(); - }; - - BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) { - var len = num.length + shift; - var i; - - this._expand(len); - - var w; - var carry = 0; - for (i = 0; i < num.length; i++) { - w = (this.words[i + shift] | 0) + carry; - var right = (num.words[i] | 0) * mul; - w -= right & 0x3ffffff; - carry = (w >> 26) - ((right / 0x4000000) | 0); - this.words[i + shift] = w & 0x3ffffff; - } - for (; i < this.length - shift; i++) { - w = (this.words[i + shift] | 0) + carry; - carry = w >> 26; - this.words[i + shift] = w & 0x3ffffff; - } - - if (carry === 0) return this.strip(); - - // Subtraction overflow - assert(carry === -1); - carry = 0; - for (i = 0; i < this.length; i++) { - w = -(this.words[i] | 0) + carry; - carry = w >> 26; - this.words[i] = w & 0x3ffffff; - } - this.negative = 1; - - return this.strip(); - }; - - BN.prototype._wordDiv = function _wordDiv (num, mode) { - var shift = this.length - num.length; - - var a = this.clone(); - var b = num; - - // Normalize - var bhi = b.words[b.length - 1] | 0; - var bhiBits = this._countBits(bhi); - shift = 26 - bhiBits; - if (shift !== 0) { - b = b.ushln(shift); - a.iushln(shift); - bhi = b.words[b.length - 1] | 0; - } - - // Initialize quotient - var m = a.length - b.length; - var q; - - if (mode !== 'mod') { - q = new BN(null); - q.length = m + 1; - q.words = new Array(q.length); - for (var i = 0; i < q.length; i++) { - q.words[i] = 0; - } - } - - var diff = a.clone()._ishlnsubmul(b, 1, m); - if (diff.negative === 0) { - a = diff; - if (q) { - q.words[m] = 1; - } - } - - for (var j = m - 1; j >= 0; j--) { - var qj = (a.words[b.length + j] | 0) * 0x4000000 + - (a.words[b.length + j - 1] | 0); - - // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max - // (0x7ffffff) - qj = Math.min((qj / bhi) | 0, 0x3ffffff); - - a._ishlnsubmul(b, qj, j); - while (a.negative !== 0) { - qj--; - a.negative = 0; - a._ishlnsubmul(b, 1, j); - if (!a.isZero()) { - a.negative ^= 1; - } - } - if (q) { - q.words[j] = qj; - } - } - if (q) { - q.strip(); - } - a.strip(); - - // Denormalize - if (mode !== 'div' && shift !== 0) { - a.iushrn(shift); - } - - return { - div: q || null, - mod: a - }; - }; - - // NOTE: 1) `mode` can be set to `mod` to request mod only, - // to `div` to request div only, or be absent to - // request both div & mod - // 2) `positive` is true if unsigned mod is requested - BN.prototype.divmod = function divmod (num, mode, positive) { - assert(!num.isZero()); - - if (this.isZero()) { - return { - div: new BN(0), - mod: new BN(0) - }; - } - - var div, mod, res; - if (this.negative !== 0 && num.negative === 0) { - res = this.neg().divmod(num, mode); - - if (mode !== 'mod') { - div = res.div.neg(); - } - - if (mode !== 'div') { - mod = res.mod.neg(); - if (positive && mod.negative !== 0) { - mod.iadd(num); - } - } - - return { - div: div, - mod: mod - }; - } - - if (this.negative === 0 && num.negative !== 0) { - res = this.divmod(num.neg(), mode); - - if (mode !== 'mod') { - div = res.div.neg(); - } - - return { - div: div, - mod: res.mod - }; - } - - if ((this.negative & num.negative) !== 0) { - res = this.neg().divmod(num.neg(), mode); - - if (mode !== 'div') { - mod = res.mod.neg(); - if (positive && mod.negative !== 0) { - mod.isub(num); - } - } - - return { - div: res.div, - mod: mod - }; - } - - // Both numbers are positive at this point - - // Strip both numbers to approximate shift value - if (num.length > this.length || this.cmp(num) < 0) { - return { - div: new BN(0), - mod: this - }; - } - - // Very short reduction - if (num.length === 1) { - if (mode === 'div') { - return { - div: this.divn(num.words[0]), - mod: null - }; - } - - if (mode === 'mod') { - return { - div: null, - mod: new BN(this.modn(num.words[0])) - }; - } - - return { - div: this.divn(num.words[0]), - mod: new BN(this.modn(num.words[0])) - }; - } - - return this._wordDiv(num, mode); - }; - - // Find `this` / `num` - BN.prototype.div = function div (num) { - return this.divmod(num, 'div', false).div; - }; - - // Find `this` % `num` - BN.prototype.mod = function mod (num) { - return this.divmod(num, 'mod', false).mod; - }; - - BN.prototype.umod = function umod (num) { - return this.divmod(num, 'mod', true).mod; - }; - - // Find Round(`this` / `num`) - BN.prototype.divRound = function divRound (num) { - var dm = this.divmod(num); - - // Fast case - exact division - if (dm.mod.isZero()) return dm.div; - - var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod; - - var half = num.ushrn(1); - var r2 = num.andln(1); - var cmp = mod.cmp(half); - - // Round down - if (cmp < 0 || r2 === 1 && cmp === 0) return dm.div; - - // Round up - return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1); - }; - - BN.prototype.modn = function modn (num) { - assert(num <= 0x3ffffff); - var p = (1 << 26) % num; - - var acc = 0; - for (var i = this.length - 1; i >= 0; i--) { - acc = (p * acc + (this.words[i] | 0)) % num; - } - - return acc; - }; - - // In-place division by number - BN.prototype.idivn = function idivn (num) { - assert(num <= 0x3ffffff); - - var carry = 0; - for (var i = this.length - 1; i >= 0; i--) { - var w = (this.words[i] | 0) + carry * 0x4000000; - this.words[i] = (w / num) | 0; - carry = w % num; - } - - return this.strip(); - }; - - BN.prototype.divn = function divn (num) { - return this.clone().idivn(num); - }; - - BN.prototype.egcd = function egcd (p) { - assert(p.negative === 0); - assert(!p.isZero()); - - var x = this; - var y = p.clone(); - - if (x.negative !== 0) { - x = x.umod(p); - } else { - x = x.clone(); - } - - // A * x + B * y = x - var A = new BN(1); - var B = new BN(0); - - // C * x + D * y = y - var C = new BN(0); - var D = new BN(1); - - var g = 0; - - while (x.isEven() && y.isEven()) { - x.iushrn(1); - y.iushrn(1); - ++g; - } - - var yp = y.clone(); - var xp = x.clone(); - - while (!x.isZero()) { - for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1); - if (i > 0) { - x.iushrn(i); - while (i-- > 0) { - if (A.isOdd() || B.isOdd()) { - A.iadd(yp); - B.isub(xp); - } - - A.iushrn(1); - B.iushrn(1); - } - } - - for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); - if (j > 0) { - y.iushrn(j); - while (j-- > 0) { - if (C.isOdd() || D.isOdd()) { - C.iadd(yp); - D.isub(xp); - } - - C.iushrn(1); - D.iushrn(1); - } - } - - if (x.cmp(y) >= 0) { - x.isub(y); - A.isub(C); - B.isub(D); - } else { - y.isub(x); - C.isub(A); - D.isub(B); - } - } - - return { - a: C, - b: D, - gcd: y.iushln(g) - }; - }; - - // This is reduced incarnation of the binary EEA - // above, designated to invert members of the - // _prime_ fields F(p) at a maximal speed - BN.prototype._invmp = function _invmp (p) { - assert(p.negative === 0); - assert(!p.isZero()); - - var a = this; - var b = p.clone(); - - if (a.negative !== 0) { - a = a.umod(p); - } else { - a = a.clone(); - } - - var x1 = new BN(1); - var x2 = new BN(0); - - var delta = b.clone(); - - while (a.cmpn(1) > 0 && b.cmpn(1) > 0) { - for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1); - if (i > 0) { - a.iushrn(i); - while (i-- > 0) { - if (x1.isOdd()) { - x1.iadd(delta); - } - - x1.iushrn(1); - } - } - - for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); - if (j > 0) { - b.iushrn(j); - while (j-- > 0) { - if (x2.isOdd()) { - x2.iadd(delta); - } - - x2.iushrn(1); - } - } - - if (a.cmp(b) >= 0) { - a.isub(b); - x1.isub(x2); - } else { - b.isub(a); - x2.isub(x1); - } - } - - var res; - if (a.cmpn(1) === 0) { - res = x1; - } else { - res = x2; - } - - if (res.cmpn(0) < 0) { - res.iadd(p); - } - - return res; - }; - - BN.prototype.gcd = function gcd (num) { - if (this.isZero()) return num.abs(); - if (num.isZero()) return this.abs(); - - var a = this.clone(); - var b = num.clone(); - a.negative = 0; - b.negative = 0; - - // Remove common factor of two - for (var shift = 0; a.isEven() && b.isEven(); shift++) { - a.iushrn(1); - b.iushrn(1); - } - - do { - while (a.isEven()) { - a.iushrn(1); - } - while (b.isEven()) { - b.iushrn(1); - } - - var r = a.cmp(b); - if (r < 0) { - // Swap `a` and `b` to make `a` always bigger than `b` - var t = a; - a = b; - b = t; - } else if (r === 0 || b.cmpn(1) === 0) { - break; - } - - a.isub(b); - } while (true); - - return b.iushln(shift); - }; - - // Invert number in the field F(num) - BN.prototype.invm = function invm (num) { - return this.egcd(num).a.umod(num); - }; - - BN.prototype.isEven = function isEven () { - return (this.words[0] & 1) === 0; - }; - - BN.prototype.isOdd = function isOdd () { - return (this.words[0] & 1) === 1; - }; - - // And first word and num - BN.prototype.andln = function andln (num) { - return this.words[0] & num; - }; - - // Increment at the bit position in-line - BN.prototype.bincn = function bincn (bit) { - assert(typeof bit === 'number'); - var r = bit % 26; - var s = (bit - r) / 26; - var q = 1 << r; - - // Fast case: bit is much higher than all existing words - if (this.length <= s) { - this._expand(s + 1); - this.words[s] |= q; - return this; - } - - // Add bit and propagate, if needed - var carry = q; - for (var i = s; carry !== 0 && i < this.length; i++) { - var w = this.words[i] | 0; - w += carry; - carry = w >>> 26; - w &= 0x3ffffff; - this.words[i] = w; - } - if (carry !== 0) { - this.words[i] = carry; - this.length++; - } - return this; - }; - - BN.prototype.isZero = function isZero () { - return this.length === 1 && this.words[0] === 0; - }; - - BN.prototype.cmpn = function cmpn (num) { - var negative = num < 0; - - if (this.negative !== 0 && !negative) return -1; - if (this.negative === 0 && negative) return 1; - - this.strip(); - - var res; - if (this.length > 1) { - res = 1; - } else { - if (negative) { - num = -num; - } - - assert(num <= 0x3ffffff, 'Number is too big'); - - var w = this.words[0] | 0; - res = w === num ? 0 : w < num ? -1 : 1; - } - if (this.negative !== 0) return -res | 0; - return res; - }; - - // Compare two numbers and return: - // 1 - if `this` > `num` - // 0 - if `this` == `num` - // -1 - if `this` < `num` - BN.prototype.cmp = function cmp (num) { - if (this.negative !== 0 && num.negative === 0) return -1; - if (this.negative === 0 && num.negative !== 0) return 1; - - var res = this.ucmp(num); - if (this.negative !== 0) return -res | 0; - return res; - }; - - // Unsigned comparison - BN.prototype.ucmp = function ucmp (num) { - // At this point both numbers have the same sign - if (this.length > num.length) return 1; - if (this.length < num.length) return -1; - - var res = 0; - for (var i = this.length - 1; i >= 0; i--) { - var a = this.words[i] | 0; - var b = num.words[i] | 0; - - if (a === b) continue; - if (a < b) { - res = -1; - } else if (a > b) { - res = 1; - } - break; - } - return res; - }; - - BN.prototype.gtn = function gtn (num) { - return this.cmpn(num) === 1; - }; - - BN.prototype.gt = function gt (num) { - return this.cmp(num) === 1; - }; - - BN.prototype.gten = function gten (num) { - return this.cmpn(num) >= 0; - }; - - BN.prototype.gte = function gte (num) { - return this.cmp(num) >= 0; - }; - - BN.prototype.ltn = function ltn (num) { - return this.cmpn(num) === -1; - }; - - BN.prototype.lt = function lt (num) { - return this.cmp(num) === -1; - }; - - BN.prototype.lten = function lten (num) { - return this.cmpn(num) <= 0; - }; - - BN.prototype.lte = function lte (num) { - return this.cmp(num) <= 0; - }; - - BN.prototype.eqn = function eqn (num) { - return this.cmpn(num) === 0; - }; - - BN.prototype.eq = function eq (num) { - return this.cmp(num) === 0; - }; - - // - // A reduce context, could be using montgomery or something better, depending - // on the `m` itself. - // - BN.red = function red (num) { - return new Red(num); - }; - - BN.prototype.toRed = function toRed (ctx) { - assert(!this.red, 'Already a number in reduction context'); - assert(this.negative === 0, 'red works only with positives'); - return ctx.convertTo(this)._forceRed(ctx); - }; - - BN.prototype.fromRed = function fromRed () { - assert(this.red, 'fromRed works only with numbers in reduction context'); - return this.red.convertFrom(this); - }; - - BN.prototype._forceRed = function _forceRed (ctx) { - this.red = ctx; - return this; - }; - - BN.prototype.forceRed = function forceRed (ctx) { - assert(!this.red, 'Already a number in reduction context'); - return this._forceRed(ctx); - }; - - BN.prototype.redAdd = function redAdd (num) { - assert(this.red, 'redAdd works only with red numbers'); - return this.red.add(this, num); - }; - - BN.prototype.redIAdd = function redIAdd (num) { - assert(this.red, 'redIAdd works only with red numbers'); - return this.red.iadd(this, num); - }; - - BN.prototype.redSub = function redSub (num) { - assert(this.red, 'redSub works only with red numbers'); - return this.red.sub(this, num); - }; - - BN.prototype.redISub = function redISub (num) { - assert(this.red, 'redISub works only with red numbers'); - return this.red.isub(this, num); - }; - - BN.prototype.redShl = function redShl (num) { - assert(this.red, 'redShl works only with red numbers'); - return this.red.shl(this, num); - }; - - BN.prototype.redMul = function redMul (num) { - assert(this.red, 'redMul works only with red numbers'); - this.red._verify2(this, num); - return this.red.mul(this, num); - }; - - BN.prototype.redIMul = function redIMul (num) { - assert(this.red, 'redMul works only with red numbers'); - this.red._verify2(this, num); - return this.red.imul(this, num); - }; - - BN.prototype.redSqr = function redSqr () { - assert(this.red, 'redSqr works only with red numbers'); - this.red._verify1(this); - return this.red.sqr(this); - }; - - BN.prototype.redISqr = function redISqr () { - assert(this.red, 'redISqr works only with red numbers'); - this.red._verify1(this); - return this.red.isqr(this); - }; - - // Square root over p - BN.prototype.redSqrt = function redSqrt () { - assert(this.red, 'redSqrt works only with red numbers'); - this.red._verify1(this); - return this.red.sqrt(this); - }; - - BN.prototype.redInvm = function redInvm () { - assert(this.red, 'redInvm works only with red numbers'); - this.red._verify1(this); - return this.red.invm(this); - }; - - // Return negative clone of `this` % `red modulo` - BN.prototype.redNeg = function redNeg () { - assert(this.red, 'redNeg works only with red numbers'); - this.red._verify1(this); - return this.red.neg(this); - }; - - BN.prototype.redPow = function redPow (num) { - assert(this.red && !num.red, 'redPow(normalNum)'); - this.red._verify1(this); - return this.red.pow(this, num); - }; - - // Prime numbers with efficient reduction - var primes = { - k256: null, - p224: null, - p192: null, - p25519: null - }; - - // Pseudo-Mersenne prime - function MPrime (name, p) { - // P = 2 ^ N - K - this.name = name; - this.p = new BN(p, 16); - this.n = this.p.bitLength(); - this.k = new BN(1).iushln(this.n).isub(this.p); - - this.tmp = this._tmp(); - } - - MPrime.prototype._tmp = function _tmp () { - var tmp = new BN(null); - tmp.words = new Array(Math.ceil(this.n / 13)); - return tmp; - }; - - MPrime.prototype.ireduce = function ireduce (num) { - // Assumes that `num` is less than `P^2` - // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P) - var r = num; - var rlen; - - do { - this.split(r, this.tmp); - r = this.imulK(r); - r = r.iadd(this.tmp); - rlen = r.bitLength(); - } while (rlen > this.n); - - var cmp = rlen < this.n ? -1 : r.ucmp(this.p); - if (cmp === 0) { - r.words[0] = 0; - r.length = 1; - } else if (cmp > 0) { - r.isub(this.p); - } else { - r.strip(); - } - - return r; - }; - - MPrime.prototype.split = function split (input, out) { - input.iushrn(this.n, 0, out); - }; - - MPrime.prototype.imulK = function imulK (num) { - return num.imul(this.k); - }; - - function K256 () { - MPrime.call( - this, - 'k256', - 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f'); - } - inherits(K256, MPrime); - - K256.prototype.split = function split (input, output) { - // 256 = 9 * 26 + 22 - var mask = 0x3fffff; - - var outLen = Math.min(input.length, 9); - for (var i = 0; i < outLen; i++) { - output.words[i] = input.words[i]; - } - output.length = outLen; - - if (input.length <= 9) { - input.words[0] = 0; - input.length = 1; - return; - } - - // Shift by 9 limbs - var prev = input.words[9]; - output.words[output.length++] = prev & mask; - - for (i = 10; i < input.length; i++) { - var next = input.words[i] | 0; - input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22); - prev = next; - } - prev >>>= 22; - input.words[i - 10] = prev; - if (prev === 0 && input.length > 10) { - input.length -= 10; - } else { - input.length -= 9; - } - }; - - K256.prototype.imulK = function imulK (num) { - // K = 0x1000003d1 = [ 0x40, 0x3d1 ] - num.words[num.length] = 0; - num.words[num.length + 1] = 0; - num.length += 2; - - // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390 - var lo = 0; - for (var i = 0; i < num.length; i++) { - var w = num.words[i] | 0; - lo += w * 0x3d1; - num.words[i] = lo & 0x3ffffff; - lo = w * 0x40 + ((lo / 0x4000000) | 0); - } - - // Fast length reduction - if (num.words[num.length - 1] === 0) { - num.length--; - if (num.words[num.length - 1] === 0) { - num.length--; - } - } - return num; - }; - - function P224 () { - MPrime.call( - this, - 'p224', - 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001'); - } - inherits(P224, MPrime); - - function P192 () { - MPrime.call( - this, - 'p192', - 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff'); - } - inherits(P192, MPrime); - - function P25519 () { - // 2 ^ 255 - 19 - MPrime.call( - this, - '25519', - '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed'); - } - inherits(P25519, MPrime); - - P25519.prototype.imulK = function imulK (num) { - // K = 0x13 - var carry = 0; - for (var i = 0; i < num.length; i++) { - var hi = (num.words[i] | 0) * 0x13 + carry; - var lo = hi & 0x3ffffff; - hi >>>= 26; - - num.words[i] = lo; - carry = hi; - } - if (carry !== 0) { - num.words[num.length++] = carry; - } - return num; - }; - - // Exported mostly for testing purposes, use plain name instead - BN._prime = function prime (name) { - // Cached version of prime - if (primes[name]) return primes[name]; - - var prime; - if (name === 'k256') { - prime = new K256(); - } else if (name === 'p224') { - prime = new P224(); - } else if (name === 'p192') { - prime = new P192(); - } else if (name === 'p25519') { - prime = new P25519(); - } else { - throw new Error('Unknown prime ' + name); - } - primes[name] = prime; - - return prime; - }; - - // - // Base reduction engine - // - function Red (m) { - if (typeof m === 'string') { - var prime = BN._prime(m); - this.m = prime.p; - this.prime = prime; - } else { - assert(m.gtn(1), 'modulus must be greater than 1'); - this.m = m; - this.prime = null; - } - } - - Red.prototype._verify1 = function _verify1 (a) { - assert(a.negative === 0, 'red works only with positives'); - assert(a.red, 'red works only with red numbers'); - }; - - Red.prototype._verify2 = function _verify2 (a, b) { - assert((a.negative | b.negative) === 0, 'red works only with positives'); - assert(a.red && a.red === b.red, - 'red works only with red numbers'); - }; - - Red.prototype.imod = function imod (a) { - if (this.prime) return this.prime.ireduce(a)._forceRed(this); - return a.umod(this.m)._forceRed(this); - }; - - Red.prototype.neg = function neg (a) { - if (a.isZero()) { - return a.clone(); - } - - return this.m.sub(a)._forceRed(this); - }; - - Red.prototype.add = function add (a, b) { - this._verify2(a, b); - - var res = a.add(b); - if (res.cmp(this.m) >= 0) { - res.isub(this.m); - } - return res._forceRed(this); - }; - - Red.prototype.iadd = function iadd (a, b) { - this._verify2(a, b); - - var res = a.iadd(b); - if (res.cmp(this.m) >= 0) { - res.isub(this.m); - } - return res; - }; - - Red.prototype.sub = function sub (a, b) { - this._verify2(a, b); - - var res = a.sub(b); - if (res.cmpn(0) < 0) { - res.iadd(this.m); - } - return res._forceRed(this); - }; - - Red.prototype.isub = function isub (a, b) { - this._verify2(a, b); - - var res = a.isub(b); - if (res.cmpn(0) < 0) { - res.iadd(this.m); - } - return res; - }; - - Red.prototype.shl = function shl (a, num) { - this._verify1(a); - return this.imod(a.ushln(num)); - }; - - Red.prototype.imul = function imul (a, b) { - this._verify2(a, b); - return this.imod(a.imul(b)); - }; - - Red.prototype.mul = function mul (a, b) { - this._verify2(a, b); - return this.imod(a.mul(b)); - }; - - Red.prototype.isqr = function isqr (a) { - return this.imul(a, a.clone()); - }; - - Red.prototype.sqr = function sqr (a) { - return this.mul(a, a); - }; - - Red.prototype.sqrt = function sqrt (a) { - if (a.isZero()) return a.clone(); - - var mod3 = this.m.andln(3); - assert(mod3 % 2 === 1); - - // Fast case - if (mod3 === 3) { - var pow = this.m.add(new BN(1)).iushrn(2); - return this.pow(a, pow); - } - - // Tonelli-Shanks algorithm (Totally unoptimized and slow) - // - // Find Q and S, that Q * 2 ^ S = (P - 1) - var q = this.m.subn(1); - var s = 0; - while (!q.isZero() && q.andln(1) === 0) { - s++; - q.iushrn(1); - } - assert(!q.isZero()); - - var one = new BN(1).toRed(this); - var nOne = one.redNeg(); - - // Find quadratic non-residue - // NOTE: Max is such because of generalized Riemann hypothesis. - var lpow = this.m.subn(1).iushrn(1); - var z = this.m.bitLength(); - z = new BN(2 * z * z).toRed(this); - - while (this.pow(z, lpow).cmp(nOne) !== 0) { - z.redIAdd(nOne); - } - - var c = this.pow(z, q); - var r = this.pow(a, q.addn(1).iushrn(1)); - var t = this.pow(a, q); - var m = s; - while (t.cmp(one) !== 0) { - var tmp = t; - for (var i = 0; tmp.cmp(one) !== 0; i++) { - tmp = tmp.redSqr(); - } - assert(i < m); - var b = this.pow(c, new BN(1).iushln(m - i - 1)); - - r = r.redMul(b); - c = b.redSqr(); - t = t.redMul(c); - m = i; - } - - return r; - }; - - Red.prototype.invm = function invm (a) { - var inv = a._invmp(this.m); - if (inv.negative !== 0) { - inv.negative = 0; - return this.imod(inv).redNeg(); - } else { - return this.imod(inv); - } - }; - - Red.prototype.pow = function pow (a, num) { - if (num.isZero()) return new BN(1).toRed(this); - if (num.cmpn(1) === 0) return a.clone(); - - var windowSize = 4; - var wnd = new Array(1 << windowSize); - wnd[0] = new BN(1).toRed(this); - wnd[1] = a; - for (var i = 2; i < wnd.length; i++) { - wnd[i] = this.mul(wnd[i - 1], a); - } - - var res = wnd[0]; - var current = 0; - var currentLen = 0; - var start = num.bitLength() % 26; - if (start === 0) { - start = 26; - } - - for (i = num.length - 1; i >= 0; i--) { - var word = num.words[i]; - for (var j = start - 1; j >= 0; j--) { - var bit = (word >> j) & 1; - if (res !== wnd[0]) { - res = this.sqr(res); - } - - if (bit === 0 && current === 0) { - currentLen = 0; - continue; - } - - current <<= 1; - current |= bit; - currentLen++; - if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue; - - res = this.mul(res, wnd[current]); - currentLen = 0; - current = 0; - } - start = 26; - } - - return res; - }; - - Red.prototype.convertTo = function convertTo (num) { - var r = num.umod(this.m); - - return r === num ? r.clone() : r; - }; - - Red.prototype.convertFrom = function convertFrom (num) { - var res = num.clone(); - res.red = null; - return res; - }; - - // - // Montgomery method engine - // - - BN.mont = function mont (num) { - return new Mont(num); - }; - - function Mont (m) { - Red.call(this, m); - - this.shift = this.m.bitLength(); - if (this.shift % 26 !== 0) { - this.shift += 26 - (this.shift % 26); - } - - this.r = new BN(1).iushln(this.shift); - this.r2 = this.imod(this.r.sqr()); - this.rinv = this.r._invmp(this.m); - - this.minv = this.rinv.mul(this.r).isubn(1).div(this.m); - this.minv = this.minv.umod(this.r); - this.minv = this.r.sub(this.minv); - } - inherits(Mont, Red); - - Mont.prototype.convertTo = function convertTo (num) { - return this.imod(num.ushln(this.shift)); - }; - - Mont.prototype.convertFrom = function convertFrom (num) { - var r = this.imod(num.mul(this.rinv)); - r.red = null; - return r; - }; - - Mont.prototype.imul = function imul (a, b) { - if (a.isZero() || b.isZero()) { - a.words[0] = 0; - a.length = 1; - return a; - } - - var t = a.imul(b); - var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); - var u = t.isub(c).iushrn(this.shift); - var res = u; - - if (u.cmp(this.m) >= 0) { - res = u.isub(this.m); - } else if (u.cmpn(0) < 0) { - res = u.iadd(this.m); - } - - return res._forceRed(this); - }; - - Mont.prototype.mul = function mul (a, b) { - if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this); - - var t = a.mul(b); - var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); - var u = t.isub(c).iushrn(this.shift); - var res = u; - if (u.cmp(this.m) >= 0) { - res = u.isub(this.m); - } else if (u.cmpn(0) < 0) { - res = u.iadd(this.m); - } - - return res._forceRed(this); - }; - - Mont.prototype.invm = function invm (a) { - // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R - var res = this.imod(a._invmp(this.m).mul(this.r2)); - return res._forceRed(this); - }; -})(typeof module === 'undefined' || module, this); - -},{"buffer":110}],109:[function(require,module,exports){ -var r; - -module.exports = function rand(len) { - if (!r) - r = new Rand(null); - - return r.generate(len); -}; - -function Rand(rand) { - this.rand = rand; -} -module.exports.Rand = Rand; - -Rand.prototype.generate = function generate(len) { - return this._rand(len); -}; - -// Emulate crypto API using randy -Rand.prototype._rand = function _rand(n) { - if (this.rand.getBytes) - return this.rand.getBytes(n); - - var res = new Uint8Array(n); - for (var i = 0; i < res.length; i++) - res[i] = this.rand.getByte(); - return res; -}; - -if (typeof self === 'object') { - if (self.crypto && self.crypto.getRandomValues) { - // Modern browsers - Rand.prototype._rand = function _rand(n) { - var arr = new Uint8Array(n); - self.crypto.getRandomValues(arr); - return arr; - }; - } else if (self.msCrypto && self.msCrypto.getRandomValues) { - // IE - Rand.prototype._rand = function _rand(n) { - var arr = new Uint8Array(n); - self.msCrypto.getRandomValues(arr); - return arr; - }; - - // Safari's WebWorkers do not have `crypto` - } else if (typeof window === 'object') { - // Old junk - Rand.prototype._rand = function() { - throw new Error('Not implemented yet'); - }; - } -} else { - // Node.js or Web worker with no crypto support - try { - var crypto = require('crypto'); - if (typeof crypto.randomBytes !== 'function') - throw new Error('Not supported'); - - Rand.prototype._rand = function _rand(n) { - return crypto.randomBytes(n); - }; - } catch (e) { - } -} - -},{"crypto":110}],110:[function(require,module,exports){ - -},{}],111:[function(require,module,exports){ -// based on the aes implimentation in triple sec -// https://github.com/keybase/triplesec -// which is in turn based on the one from crypto-js -// https://code.google.com/p/crypto-js/ - -var Buffer = require('safe-buffer').Buffer - -function asUInt32Array (buf) { - if (!Buffer.isBuffer(buf)) buf = Buffer.from(buf) - - var len = (buf.length / 4) | 0 - var out = new Array(len) - - for (var i = 0; i < len; i++) { - out[i] = buf.readUInt32BE(i * 4) - } - - return out -} - -function scrubVec (v) { - for (var i = 0; i < v.length; v++) { - v[i] = 0 - } -} - -function cryptBlock (M, keySchedule, SUB_MIX, SBOX, nRounds) { - var SUB_MIX0 = SUB_MIX[0] - var SUB_MIX1 = SUB_MIX[1] - var SUB_MIX2 = SUB_MIX[2] - var SUB_MIX3 = SUB_MIX[3] - - var s0 = M[0] ^ keySchedule[0] - var s1 = M[1] ^ keySchedule[1] - var s2 = M[2] ^ keySchedule[2] - var s3 = M[3] ^ keySchedule[3] - var t0, t1, t2, t3 - var ksRow = 4 - - for (var round = 1; round < nRounds; round++) { - t0 = SUB_MIX0[s0 >>> 24] ^ SUB_MIX1[(s1 >>> 16) & 0xff] ^ SUB_MIX2[(s2 >>> 8) & 0xff] ^ SUB_MIX3[s3 & 0xff] ^ keySchedule[ksRow++] - t1 = SUB_MIX0[s1 >>> 24] ^ SUB_MIX1[(s2 >>> 16) & 0xff] ^ SUB_MIX2[(s3 >>> 8) & 0xff] ^ SUB_MIX3[s0 & 0xff] ^ keySchedule[ksRow++] - t2 = SUB_MIX0[s2 >>> 24] ^ SUB_MIX1[(s3 >>> 16) & 0xff] ^ SUB_MIX2[(s0 >>> 8) & 0xff] ^ SUB_MIX3[s1 & 0xff] ^ keySchedule[ksRow++] - t3 = SUB_MIX0[s3 >>> 24] ^ SUB_MIX1[(s0 >>> 16) & 0xff] ^ SUB_MIX2[(s1 >>> 8) & 0xff] ^ SUB_MIX3[s2 & 0xff] ^ keySchedule[ksRow++] - s0 = t0 - s1 = t1 - s2 = t2 - s3 = t3 - } - - t0 = ((SBOX[s0 >>> 24] << 24) | (SBOX[(s1 >>> 16) & 0xff] << 16) | (SBOX[(s2 >>> 8) & 0xff] << 8) | SBOX[s3 & 0xff]) ^ keySchedule[ksRow++] - t1 = ((SBOX[s1 >>> 24] << 24) | (SBOX[(s2 >>> 16) & 0xff] << 16) | (SBOX[(s3 >>> 8) & 0xff] << 8) | SBOX[s0 & 0xff]) ^ keySchedule[ksRow++] - t2 = ((SBOX[s2 >>> 24] << 24) | (SBOX[(s3 >>> 16) & 0xff] << 16) | (SBOX[(s0 >>> 8) & 0xff] << 8) | SBOX[s1 & 0xff]) ^ keySchedule[ksRow++] - t3 = ((SBOX[s3 >>> 24] << 24) | (SBOX[(s0 >>> 16) & 0xff] << 16) | (SBOX[(s1 >>> 8) & 0xff] << 8) | SBOX[s2 & 0xff]) ^ keySchedule[ksRow++] - t0 = t0 >>> 0 - t1 = t1 >>> 0 - t2 = t2 >>> 0 - t3 = t3 >>> 0 - - return [t0, t1, t2, t3] -} - -// AES constants -var RCON = [0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36] -var G = (function () { - // Compute double table - var d = new Array(256) - for (var j = 0; j < 256; j++) { - if (j < 128) { - d[j] = j << 1 - } else { - d[j] = (j << 1) ^ 0x11b - } - } - - var SBOX = [] - var INV_SBOX = [] - var SUB_MIX = [[], [], [], []] - var INV_SUB_MIX = [[], [], [], []] - - // Walk GF(2^8) - var x = 0 - var xi = 0 - for (var i = 0; i < 256; ++i) { - // Compute sbox - var sx = xi ^ (xi << 1) ^ (xi << 2) ^ (xi << 3) ^ (xi << 4) - sx = (sx >>> 8) ^ (sx & 0xff) ^ 0x63 - SBOX[x] = sx - INV_SBOX[sx] = x - - // Compute multiplication - var x2 = d[x] - var x4 = d[x2] - var x8 = d[x4] - - // Compute sub bytes, mix columns tables - var t = (d[sx] * 0x101) ^ (sx * 0x1010100) - SUB_MIX[0][x] = (t << 24) | (t >>> 8) - SUB_MIX[1][x] = (t << 16) | (t >>> 16) - SUB_MIX[2][x] = (t << 8) | (t >>> 24) - SUB_MIX[3][x] = t - - // Compute inv sub bytes, inv mix columns tables - t = (x8 * 0x1010101) ^ (x4 * 0x10001) ^ (x2 * 0x101) ^ (x * 0x1010100) - INV_SUB_MIX[0][sx] = (t << 24) | (t >>> 8) - INV_SUB_MIX[1][sx] = (t << 16) | (t >>> 16) - INV_SUB_MIX[2][sx] = (t << 8) | (t >>> 24) - INV_SUB_MIX[3][sx] = t - - if (x === 0) { - x = xi = 1 - } else { - x = x2 ^ d[d[d[x8 ^ x2]]] - xi ^= d[d[xi]] - } - } - - return { - SBOX: SBOX, - INV_SBOX: INV_SBOX, - SUB_MIX: SUB_MIX, - INV_SUB_MIX: INV_SUB_MIX - } -})() - -function AES (key) { - this._key = asUInt32Array(key) - this._reset() -} - -AES.blockSize = 4 * 4 -AES.keySize = 256 / 8 -AES.prototype.blockSize = AES.blockSize -AES.prototype.keySize = AES.keySize -AES.prototype._reset = function () { - var keyWords = this._key - var keySize = keyWords.length - var nRounds = keySize + 6 - var ksRows = (nRounds + 1) * 4 - - var keySchedule = [] - for (var k = 0; k < keySize; k++) { - keySchedule[k] = keyWords[k] - } - - for (k = keySize; k < ksRows; k++) { - var t = keySchedule[k - 1] - - if (k % keySize === 0) { - t = (t << 8) | (t >>> 24) - t = - (G.SBOX[t >>> 24] << 24) | - (G.SBOX[(t >>> 16) & 0xff] << 16) | - (G.SBOX[(t >>> 8) & 0xff] << 8) | - (G.SBOX[t & 0xff]) - - t ^= RCON[(k / keySize) | 0] << 24 - } else if (keySize > 6 && k % keySize === 4) { - t = - (G.SBOX[t >>> 24] << 24) | - (G.SBOX[(t >>> 16) & 0xff] << 16) | - (G.SBOX[(t >>> 8) & 0xff] << 8) | - (G.SBOX[t & 0xff]) - } - - keySchedule[k] = keySchedule[k - keySize] ^ t - } - - var invKeySchedule = [] - for (var ik = 0; ik < ksRows; ik++) { - var ksR = ksRows - ik - var tt = keySchedule[ksR - (ik % 4 ? 0 : 4)] - - if (ik < 4 || ksR <= 4) { - invKeySchedule[ik] = tt - } else { - invKeySchedule[ik] = - G.INV_SUB_MIX[0][G.SBOX[tt >>> 24]] ^ - G.INV_SUB_MIX[1][G.SBOX[(tt >>> 16) & 0xff]] ^ - G.INV_SUB_MIX[2][G.SBOX[(tt >>> 8) & 0xff]] ^ - G.INV_SUB_MIX[3][G.SBOX[tt & 0xff]] - } - } - - this._nRounds = nRounds - this._keySchedule = keySchedule - this._invKeySchedule = invKeySchedule -} - -AES.prototype.encryptBlockRaw = function (M) { - M = asUInt32Array(M) - return cryptBlock(M, this._keySchedule, G.SUB_MIX, G.SBOX, this._nRounds) -} - -AES.prototype.encryptBlock = function (M) { - var out = this.encryptBlockRaw(M) - var buf = Buffer.allocUnsafe(16) - buf.writeUInt32BE(out[0], 0) - buf.writeUInt32BE(out[1], 4) - buf.writeUInt32BE(out[2], 8) - buf.writeUInt32BE(out[3], 12) - return buf -} - -AES.prototype.decryptBlock = function (M) { - M = asUInt32Array(M) - - // swap - var m1 = M[1] - M[1] = M[3] - M[3] = m1 - - var out = cryptBlock(M, this._invKeySchedule, G.INV_SUB_MIX, G.INV_SBOX, this._nRounds) - var buf = Buffer.allocUnsafe(16) - buf.writeUInt32BE(out[0], 0) - buf.writeUInt32BE(out[3], 4) - buf.writeUInt32BE(out[2], 8) - buf.writeUInt32BE(out[1], 12) - return buf -} - -AES.prototype.scrub = function () { - scrubVec(this._keySchedule) - scrubVec(this._invKeySchedule) - scrubVec(this._key) -} - -module.exports.AES = AES - -},{"safe-buffer":742}],112:[function(require,module,exports){ -var aes = require('./aes') -var Buffer = require('safe-buffer').Buffer -var Transform = require('cipher-base') -var inherits = require('inherits') -var GHASH = require('./ghash') -var xor = require('buffer-xor') -var incr32 = require('./incr32') - -function xorTest (a, b) { - var out = 0 - if (a.length !== b.length) out++ - - var len = Math.min(a.length, b.length) - for (var i = 0; i < len; ++i) { - out += (a[i] ^ b[i]) - } - - return out -} - -function calcIv (self, iv, ck) { - if (iv.length === 12) { - self._finID = Buffer.concat([iv, Buffer.from([0, 0, 0, 1])]) - return Buffer.concat([iv, Buffer.from([0, 0, 0, 2])]) - } - var ghash = new GHASH(ck) - var len = iv.length - var toPad = len % 16 - ghash.update(iv) - if (toPad) { - toPad = 16 - toPad - ghash.update(Buffer.alloc(toPad, 0)) - } - ghash.update(Buffer.alloc(8, 0)) - var ivBits = len * 8 - var tail = Buffer.alloc(8) - tail.writeUIntBE(ivBits, 0, 8) - ghash.update(tail) - self._finID = ghash.state - var out = Buffer.from(self._finID) - incr32(out) - return out -} -function StreamCipher (mode, key, iv, decrypt) { - Transform.call(this) - - var h = Buffer.alloc(4, 0) - - this._cipher = new aes.AES(key) - var ck = this._cipher.encryptBlock(h) - this._ghash = new GHASH(ck) - iv = calcIv(this, iv, ck) - - this._prev = Buffer.from(iv) - this._cache = Buffer.allocUnsafe(0) - this._secCache = Buffer.allocUnsafe(0) - this._decrypt = decrypt - this._alen = 0 - this._len = 0 - this._mode = mode - - this._authTag = null - this._called = false -} - -inherits(StreamCipher, Transform) - -StreamCipher.prototype._update = function (chunk) { - if (!this._called && this._alen) { - var rump = 16 - (this._alen % 16) - if (rump < 16) { - rump = Buffer.alloc(rump, 0) - this._ghash.update(rump) - } - } - - this._called = true - var out = this._mode.encrypt(this, chunk) - if (this._decrypt) { - this._ghash.update(chunk) - } else { - this._ghash.update(out) - } - this._len += chunk.length - return out -} - -StreamCipher.prototype._final = function () { - if (this._decrypt && !this._authTag) throw new Error('Unsupported state or unable to authenticate data') - - var tag = xor(this._ghash.final(this._alen * 8, this._len * 8), this._cipher.encryptBlock(this._finID)) - if (this._decrypt && xorTest(tag, this._authTag)) throw new Error('Unsupported state or unable to authenticate data') - - this._authTag = tag - this._cipher.scrub() -} - -StreamCipher.prototype.getAuthTag = function getAuthTag () { - if (this._decrypt || !Buffer.isBuffer(this._authTag)) throw new Error('Attempting to get auth tag in unsupported state') - - return this._authTag -} - -StreamCipher.prototype.setAuthTag = function setAuthTag (tag) { - if (!this._decrypt) throw new Error('Attempting to set auth tag in unsupported state') - - this._authTag = tag -} - -StreamCipher.prototype.setAAD = function setAAD (buf) { - if (this._called) throw new Error('Attempting to set AAD in unsupported state') - - this._ghash.update(buf) - this._alen += buf.length -} - -module.exports = StreamCipher - -},{"./aes":111,"./ghash":116,"./incr32":117,"buffer-xor":144,"cipher-base":155,"inherits":396,"safe-buffer":742}],113:[function(require,module,exports){ -var ciphers = require('./encrypter') -var deciphers = require('./decrypter') -var modes = require('./modes/list.json') - -function getCiphers () { - return Object.keys(modes) -} - -exports.createCipher = exports.Cipher = ciphers.createCipher -exports.createCipheriv = exports.Cipheriv = ciphers.createCipheriv -exports.createDecipher = exports.Decipher = deciphers.createDecipher -exports.createDecipheriv = exports.Decipheriv = deciphers.createDecipheriv -exports.listCiphers = exports.getCiphers = getCiphers - -},{"./decrypter":114,"./encrypter":115,"./modes/list.json":125}],114:[function(require,module,exports){ -var AuthCipher = require('./authCipher') -var Buffer = require('safe-buffer').Buffer -var MODES = require('./modes') -var StreamCipher = require('./streamCipher') -var Transform = require('cipher-base') -var aes = require('./aes') -var ebtk = require('evp_bytestokey') -var inherits = require('inherits') - -function Decipher (mode, key, iv) { - Transform.call(this) - - this._cache = new Splitter() - this._last = void 0 - this._cipher = new aes.AES(key) - this._prev = Buffer.from(iv) - this._mode = mode - this._autopadding = true -} - -inherits(Decipher, Transform) - -Decipher.prototype._update = function (data) { - this._cache.add(data) - var chunk - var thing - var out = [] - while ((chunk = this._cache.get(this._autopadding))) { - thing = this._mode.decrypt(this, chunk) - out.push(thing) - } - return Buffer.concat(out) -} - -Decipher.prototype._final = function () { - var chunk = this._cache.flush() - if (this._autopadding) { - return unpad(this._mode.decrypt(this, chunk)) - } else if (chunk) { - throw new Error('data not multiple of block length') - } -} - -Decipher.prototype.setAutoPadding = function (setTo) { - this._autopadding = !!setTo - return this -} - -function Splitter () { - this.cache = Buffer.allocUnsafe(0) -} - -Splitter.prototype.add = function (data) { - this.cache = Buffer.concat([this.cache, data]) -} - -Splitter.prototype.get = function (autoPadding) { - var out - if (autoPadding) { - if (this.cache.length > 16) { - out = this.cache.slice(0, 16) - this.cache = this.cache.slice(16) - return out - } - } else { - if (this.cache.length >= 16) { - out = this.cache.slice(0, 16) - this.cache = this.cache.slice(16) - return out - } - } - - return null -} - -Splitter.prototype.flush = function () { - if (this.cache.length) return this.cache -} - -function unpad (last) { - var padded = last[15] - if (padded < 1 || padded > 16) { - throw new Error('unable to decrypt data') - } - var i = -1 - while (++i < padded) { - if (last[(i + (16 - padded))] !== padded) { - throw new Error('unable to decrypt data') - } - } - if (padded === 16) return - - return last.slice(0, 16 - padded) -} - -function createDecipheriv (suite, password, iv) { - var config = MODES[suite.toLowerCase()] - if (!config) throw new TypeError('invalid suite type') - - if (typeof iv === 'string') iv = Buffer.from(iv) - if (config.mode !== 'GCM' && iv.length !== config.iv) throw new TypeError('invalid iv length ' + iv.length) - - if (typeof password === 'string') password = Buffer.from(password) - if (password.length !== config.key / 8) throw new TypeError('invalid key length ' + password.length) - - if (config.type === 'stream') { - return new StreamCipher(config.module, password, iv, true) - } else if (config.type === 'auth') { - return new AuthCipher(config.module, password, iv, true) - } - - return new Decipher(config.module, password, iv) -} - -function createDecipher (suite, password) { - var config = MODES[suite.toLowerCase()] - if (!config) throw new TypeError('invalid suite type') - - var keys = ebtk(password, false, config.key, config.iv) - return createDecipheriv(suite, keys.key, keys.iv) -} - -exports.createDecipher = createDecipher -exports.createDecipheriv = createDecipheriv - -},{"./aes":111,"./authCipher":112,"./modes":124,"./streamCipher":127,"cipher-base":155,"evp_bytestokey":336,"inherits":396,"safe-buffer":742}],115:[function(require,module,exports){ -var MODES = require('./modes') -var AuthCipher = require('./authCipher') -var Buffer = require('safe-buffer').Buffer -var StreamCipher = require('./streamCipher') -var Transform = require('cipher-base') -var aes = require('./aes') -var ebtk = require('evp_bytestokey') -var inherits = require('inherits') - -function Cipher (mode, key, iv) { - Transform.call(this) - - this._cache = new Splitter() - this._cipher = new aes.AES(key) - this._prev = Buffer.from(iv) - this._mode = mode - this._autopadding = true -} - -inherits(Cipher, Transform) - -Cipher.prototype._update = function (data) { - this._cache.add(data) - var chunk - var thing - var out = [] - - while ((chunk = this._cache.get())) { - thing = this._mode.encrypt(this, chunk) - out.push(thing) - } - - return Buffer.concat(out) -} - -var PADDING = Buffer.alloc(16, 0x10) - -Cipher.prototype._final = function () { - var chunk = this._cache.flush() - if (this._autopadding) { - chunk = this._mode.encrypt(this, chunk) - this._cipher.scrub() - return chunk - } - - if (!chunk.equals(PADDING)) { - this._cipher.scrub() - throw new Error('data not multiple of block length') - } -} - -Cipher.prototype.setAutoPadding = function (setTo) { - this._autopadding = !!setTo - return this -} - -function Splitter () { - this.cache = Buffer.allocUnsafe(0) -} - -Splitter.prototype.add = function (data) { - this.cache = Buffer.concat([this.cache, data]) -} - -Splitter.prototype.get = function () { - if (this.cache.length > 15) { - var out = this.cache.slice(0, 16) - this.cache = this.cache.slice(16) - return out - } - return null -} - -Splitter.prototype.flush = function () { - var len = 16 - this.cache.length - var padBuff = Buffer.allocUnsafe(len) - - var i = -1 - while (++i < len) { - padBuff.writeUInt8(len, i) - } - - return Buffer.concat([this.cache, padBuff]) -} - -function createCipheriv (suite, password, iv) { - var config = MODES[suite.toLowerCase()] - if (!config) throw new TypeError('invalid suite type') - - if (typeof password === 'string') password = Buffer.from(password) - if (password.length !== config.key / 8) throw new TypeError('invalid key length ' + password.length) - - if (typeof iv === 'string') iv = Buffer.from(iv) - if (config.mode !== 'GCM' && iv.length !== config.iv) throw new TypeError('invalid iv length ' + iv.length) - - if (config.type === 'stream') { - return new StreamCipher(config.module, password, iv) - } else if (config.type === 'auth') { - return new AuthCipher(config.module, password, iv) - } - - return new Cipher(config.module, password, iv) -} - -function createCipher (suite, password) { - var config = MODES[suite.toLowerCase()] - if (!config) throw new TypeError('invalid suite type') - - var keys = ebtk(password, false, config.key, config.iv) - return createCipheriv(suite, keys.key, keys.iv) -} - -exports.createCipheriv = createCipheriv -exports.createCipher = createCipher - -},{"./aes":111,"./authCipher":112,"./modes":124,"./streamCipher":127,"cipher-base":155,"evp_bytestokey":336,"inherits":396,"safe-buffer":742}],116:[function(require,module,exports){ -var Buffer = require('safe-buffer').Buffer -var ZEROES = Buffer.alloc(16, 0) - -function toArray (buf) { - return [ - buf.readUInt32BE(0), - buf.readUInt32BE(4), - buf.readUInt32BE(8), - buf.readUInt32BE(12) - ] -} - -function fromArray (out) { - var buf = Buffer.allocUnsafe(16) - buf.writeUInt32BE(out[0] >>> 0, 0) - buf.writeUInt32BE(out[1] >>> 0, 4) - buf.writeUInt32BE(out[2] >>> 0, 8) - buf.writeUInt32BE(out[3] >>> 0, 12) - return buf -} - -function GHASH (key) { - this.h = key - this.state = Buffer.alloc(16, 0) - this.cache = Buffer.allocUnsafe(0) -} - -// from http://bitwiseshiftleft.github.io/sjcl/doc/symbols/src/core_gcm.js.html -// by Juho Vähä-Herttua -GHASH.prototype.ghash = function (block) { - var i = -1 - while (++i < block.length) { - this.state[i] ^= block[i] - } - this._multiply() -} - -GHASH.prototype._multiply = function () { - var Vi = toArray(this.h) - var Zi = [0, 0, 0, 0] - var j, xi, lsbVi - var i = -1 - while (++i < 128) { - xi = (this.state[~~(i / 8)] & (1 << (7 - (i % 8)))) !== 0 - if (xi) { - // Z_i+1 = Z_i ^ V_i - Zi[0] ^= Vi[0] - Zi[1] ^= Vi[1] - Zi[2] ^= Vi[2] - Zi[3] ^= Vi[3] - } - - // Store the value of LSB(V_i) - lsbVi = (Vi[3] & 1) !== 0 - - // V_i+1 = V_i >> 1 - for (j = 3; j > 0; j--) { - Vi[j] = (Vi[j] >>> 1) | ((Vi[j - 1] & 1) << 31) - } - Vi[0] = Vi[0] >>> 1 - - // If LSB(V_i) is 1, V_i+1 = (V_i >> 1) ^ R - if (lsbVi) { - Vi[0] = Vi[0] ^ (0xe1 << 24) - } - } - this.state = fromArray(Zi) -} - -GHASH.prototype.update = function (buf) { - this.cache = Buffer.concat([this.cache, buf]) - var chunk - while (this.cache.length >= 16) { - chunk = this.cache.slice(0, 16) - this.cache = this.cache.slice(16) - this.ghash(chunk) - } -} - -GHASH.prototype.final = function (abl, bl) { - if (this.cache.length) { - this.ghash(Buffer.concat([this.cache, ZEROES], 16)) - } - - this.ghash(fromArray([0, abl, 0, bl])) - return this.state -} - -module.exports = GHASH - -},{"safe-buffer":742}],117:[function(require,module,exports){ -function incr32 (iv) { - var len = iv.length - var item - while (len--) { - item = iv.readUInt8(len) - if (item === 255) { - iv.writeUInt8(0, len) - } else { - item++ - iv.writeUInt8(item, len) - break - } - } -} -module.exports = incr32 - -},{}],118:[function(require,module,exports){ -var xor = require('buffer-xor') - -exports.encrypt = function (self, block) { - var data = xor(block, self._prev) - - self._prev = self._cipher.encryptBlock(data) - return self._prev -} - -exports.decrypt = function (self, block) { - var pad = self._prev - - self._prev = block - var out = self._cipher.decryptBlock(block) - - return xor(out, pad) -} - -},{"buffer-xor":144}],119:[function(require,module,exports){ -var Buffer = require('safe-buffer').Buffer -var xor = require('buffer-xor') - -function encryptStart (self, data, decrypt) { - var len = data.length - var out = xor(data, self._cache) - self._cache = self._cache.slice(len) - self._prev = Buffer.concat([self._prev, decrypt ? data : out]) - return out -} - -exports.encrypt = function (self, data, decrypt) { - var out = Buffer.allocUnsafe(0) - var len - - while (data.length) { - if (self._cache.length === 0) { - self._cache = self._cipher.encryptBlock(self._prev) - self._prev = Buffer.allocUnsafe(0) - } - - if (self._cache.length <= data.length) { - len = self._cache.length - out = Buffer.concat([out, encryptStart(self, data.slice(0, len), decrypt)]) - data = data.slice(len) - } else { - out = Buffer.concat([out, encryptStart(self, data, decrypt)]) - break - } - } - - return out -} - -},{"buffer-xor":144,"safe-buffer":742}],120:[function(require,module,exports){ -var Buffer = require('safe-buffer').Buffer - -function encryptByte (self, byteParam, decrypt) { - var pad - var i = -1 - var len = 8 - var out = 0 - var bit, value - while (++i < len) { - pad = self._cipher.encryptBlock(self._prev) - bit = (byteParam & (1 << (7 - i))) ? 0x80 : 0 - value = pad[0] ^ bit - out += ((value & 0x80) >> (i % 8)) - self._prev = shiftIn(self._prev, decrypt ? bit : value) - } - return out -} - -function shiftIn (buffer, value) { - var len = buffer.length - var i = -1 - var out = Buffer.allocUnsafe(buffer.length) - buffer = Buffer.concat([buffer, Buffer.from([value])]) - - while (++i < len) { - out[i] = buffer[i] << 1 | buffer[i + 1] >> (7) - } - - return out -} - -exports.encrypt = function (self, chunk, decrypt) { - var len = chunk.length - var out = Buffer.allocUnsafe(len) - var i = -1 - - while (++i < len) { - out[i] = encryptByte(self, chunk[i], decrypt) - } - - return out -} - -},{"safe-buffer":742}],121:[function(require,module,exports){ -var Buffer = require('safe-buffer').Buffer - -function encryptByte (self, byteParam, decrypt) { - var pad = self._cipher.encryptBlock(self._prev) - var out = pad[0] ^ byteParam - - self._prev = Buffer.concat([ - self._prev.slice(1), - Buffer.from([decrypt ? byteParam : out]) - ]) - - return out -} - -exports.encrypt = function (self, chunk, decrypt) { - var len = chunk.length - var out = Buffer.allocUnsafe(len) - var i = -1 - - while (++i < len) { - out[i] = encryptByte(self, chunk[i], decrypt) - } - - return out -} - -},{"safe-buffer":742}],122:[function(require,module,exports){ -var xor = require('buffer-xor') -var Buffer = require('safe-buffer').Buffer -var incr32 = require('../incr32') - -function getBlock (self) { - var out = self._cipher.encryptBlockRaw(self._prev) - incr32(self._prev) - return out -} - -var blockSize = 16 -exports.encrypt = function (self, chunk) { - var chunkNum = Math.ceil(chunk.length / blockSize) - var start = self._cache.length - self._cache = Buffer.concat([ - self._cache, - Buffer.allocUnsafe(chunkNum * blockSize) - ]) - for (var i = 0; i < chunkNum; i++) { - var out = getBlock(self) - var offset = start + i * blockSize - self._cache.writeUInt32BE(out[0], offset + 0) - self._cache.writeUInt32BE(out[1], offset + 4) - self._cache.writeUInt32BE(out[2], offset + 8) - self._cache.writeUInt32BE(out[3], offset + 12) - } - var pad = self._cache.slice(0, chunk.length) - self._cache = self._cache.slice(chunk.length) - return xor(chunk, pad) -} - -},{"../incr32":117,"buffer-xor":144,"safe-buffer":742}],123:[function(require,module,exports){ -exports.encrypt = function (self, block) { - return self._cipher.encryptBlock(block) -} - -exports.decrypt = function (self, block) { - return self._cipher.decryptBlock(block) -} - -},{}],124:[function(require,module,exports){ -var modeModules = { - ECB: require('./ecb'), - CBC: require('./cbc'), - CFB: require('./cfb'), - CFB8: require('./cfb8'), - CFB1: require('./cfb1'), - OFB: require('./ofb'), - CTR: require('./ctr'), - GCM: require('./ctr') -} - -var modes = require('./list.json') - -for (var key in modes) { - modes[key].module = modeModules[modes[key].mode] -} - -module.exports = modes - -},{"./cbc":118,"./cfb":119,"./cfb1":120,"./cfb8":121,"./ctr":122,"./ecb":123,"./list.json":125,"./ofb":126}],125:[function(require,module,exports){ -module.exports={ - "aes-128-ecb": { - "cipher": "AES", - "key": 128, - "iv": 0, - "mode": "ECB", - "type": "block" - }, - "aes-192-ecb": { - "cipher": "AES", - "key": 192, - "iv": 0, - "mode": "ECB", - "type": "block" - }, - "aes-256-ecb": { - "cipher": "AES", - "key": 256, - "iv": 0, - "mode": "ECB", - "type": "block" - }, - "aes-128-cbc": { - "cipher": "AES", - "key": 128, - "iv": 16, - "mode": "CBC", - "type": "block" - }, - "aes-192-cbc": { - "cipher": "AES", - "key": 192, - "iv": 16, - "mode": "CBC", - "type": "block" - }, - "aes-256-cbc": { - "cipher": "AES", - "key": 256, - "iv": 16, - "mode": "CBC", - "type": "block" - }, - "aes128": { - "cipher": "AES", - "key": 128, - "iv": 16, - "mode": "CBC", - "type": "block" - }, - "aes192": { - "cipher": "AES", - "key": 192, - "iv": 16, - "mode": "CBC", - "type": "block" - }, - "aes256": { - "cipher": "AES", - "key": 256, - "iv": 16, - "mode": "CBC", - "type": "block" - }, - "aes-128-cfb": { - "cipher": "AES", - "key": 128, - "iv": 16, - "mode": "CFB", - "type": "stream" - }, - "aes-192-cfb": { - "cipher": "AES", - "key": 192, - "iv": 16, - "mode": "CFB", - "type": "stream" - }, - "aes-256-cfb": { - "cipher": "AES", - "key": 256, - "iv": 16, - "mode": "CFB", - "type": "stream" - }, - "aes-128-cfb8": { - "cipher": "AES", - "key": 128, - "iv": 16, - "mode": "CFB8", - "type": "stream" - }, - "aes-192-cfb8": { - "cipher": "AES", - "key": 192, - "iv": 16, - "mode": "CFB8", - "type": "stream" - }, - "aes-256-cfb8": { - "cipher": "AES", - "key": 256, - "iv": 16, - "mode": "CFB8", - "type": "stream" - }, - "aes-128-cfb1": { - "cipher": "AES", - "key": 128, - "iv": 16, - "mode": "CFB1", - "type": "stream" - }, - "aes-192-cfb1": { - "cipher": "AES", - "key": 192, - "iv": 16, - "mode": "CFB1", - "type": "stream" - }, - "aes-256-cfb1": { - "cipher": "AES", - "key": 256, - "iv": 16, - "mode": "CFB1", - "type": "stream" - }, - "aes-128-ofb": { - "cipher": "AES", - "key": 128, - "iv": 16, - "mode": "OFB", - "type": "stream" - }, - "aes-192-ofb": { - "cipher": "AES", - "key": 192, - "iv": 16, - "mode": "OFB", - "type": "stream" - }, - "aes-256-ofb": { - "cipher": "AES", - "key": 256, - "iv": 16, - "mode": "OFB", - "type": "stream" - }, - "aes-128-ctr": { - "cipher": "AES", - "key": 128, - "iv": 16, - "mode": "CTR", - "type": "stream" - }, - "aes-192-ctr": { - "cipher": "AES", - "key": 192, - "iv": 16, - "mode": "CTR", - "type": "stream" - }, - "aes-256-ctr": { - "cipher": "AES", - "key": 256, - "iv": 16, - "mode": "CTR", - "type": "stream" - }, - "aes-128-gcm": { - "cipher": "AES", - "key": 128, - "iv": 12, - "mode": "GCM", - "type": "auth" - }, - "aes-192-gcm": { - "cipher": "AES", - "key": 192, - "iv": 12, - "mode": "GCM", - "type": "auth" - }, - "aes-256-gcm": { - "cipher": "AES", - "key": 256, - "iv": 12, - "mode": "GCM", - "type": "auth" - } -} - -},{}],126:[function(require,module,exports){ -(function (Buffer){ -var xor = require('buffer-xor') - -function getBlock (self) { - self._prev = self._cipher.encryptBlock(self._prev) - return self._prev -} - -exports.encrypt = function (self, chunk) { - while (self._cache.length < chunk.length) { - self._cache = Buffer.concat([self._cache, getBlock(self)]) - } - - var pad = self._cache.slice(0, chunk.length) - self._cache = self._cache.slice(chunk.length) - return xor(chunk, pad) -} - -}).call(this,require("buffer").Buffer) -},{"buffer":146,"buffer-xor":144}],127:[function(require,module,exports){ -var aes = require('./aes') -var Buffer = require('safe-buffer').Buffer -var Transform = require('cipher-base') -var inherits = require('inherits') - -function StreamCipher (mode, key, iv, decrypt) { - Transform.call(this) - - this._cipher = new aes.AES(key) - this._prev = Buffer.from(iv) - this._cache = Buffer.allocUnsafe(0) - this._secCache = Buffer.allocUnsafe(0) - this._decrypt = decrypt - this._mode = mode -} - -inherits(StreamCipher, Transform) - -StreamCipher.prototype._update = function (chunk) { - return this._mode.encrypt(this, chunk, this._decrypt) -} - -StreamCipher.prototype._final = function () { - this._cipher.scrub() -} - -module.exports = StreamCipher - -},{"./aes":111,"cipher-base":155,"inherits":396,"safe-buffer":742}],128:[function(require,module,exports){ -var DES = require('browserify-des') -var aes = require('browserify-aes/browser') -var aesModes = require('browserify-aes/modes') -var desModes = require('browserify-des/modes') -var ebtk = require('evp_bytestokey') - -function createCipher (suite, password) { - suite = suite.toLowerCase() - - var keyLen, ivLen - if (aesModes[suite]) { - keyLen = aesModes[suite].key - ivLen = aesModes[suite].iv - } else if (desModes[suite]) { - keyLen = desModes[suite].key * 8 - ivLen = desModes[suite].iv - } else { - throw new TypeError('invalid suite type') - } - - var keys = ebtk(password, false, keyLen, ivLen) - return createCipheriv(suite, keys.key, keys.iv) -} - -function createDecipher (suite, password) { - suite = suite.toLowerCase() - - var keyLen, ivLen - if (aesModes[suite]) { - keyLen = aesModes[suite].key - ivLen = aesModes[suite].iv - } else if (desModes[suite]) { - keyLen = desModes[suite].key * 8 - ivLen = desModes[suite].iv - } else { - throw new TypeError('invalid suite type') - } - - var keys = ebtk(password, false, keyLen, ivLen) - return createDecipheriv(suite, keys.key, keys.iv) -} - -function createCipheriv (suite, key, iv) { - suite = suite.toLowerCase() - if (aesModes[suite]) return aes.createCipheriv(suite, key, iv) - if (desModes[suite]) return new DES({ key: key, iv: iv, mode: suite }) - - throw new TypeError('invalid suite type') -} - -function createDecipheriv (suite, key, iv) { - suite = suite.toLowerCase() - if (aesModes[suite]) return aes.createDecipheriv(suite, key, iv) - if (desModes[suite]) return new DES({ key: key, iv: iv, mode: suite, decrypt: true }) - - throw new TypeError('invalid suite type') -} - -function getCiphers () { - return Object.keys(desModes).concat(aes.getCiphers()) -} - -exports.createCipher = exports.Cipher = createCipher -exports.createCipheriv = exports.Cipheriv = createCipheriv -exports.createDecipher = exports.Decipher = createDecipher -exports.createDecipheriv = exports.Decipheriv = createDecipheriv -exports.listCiphers = exports.getCiphers = getCiphers - -},{"browserify-aes/browser":113,"browserify-aes/modes":124,"browserify-des":129,"browserify-des/modes":130,"evp_bytestokey":336}],129:[function(require,module,exports){ -var CipherBase = require('cipher-base') -var des = require('des.js') -var inherits = require('inherits') -var Buffer = require('safe-buffer').Buffer - -var modes = { - 'des-ede3-cbc': des.CBC.instantiate(des.EDE), - 'des-ede3': des.EDE, - 'des-ede-cbc': des.CBC.instantiate(des.EDE), - 'des-ede': des.EDE, - 'des-cbc': des.CBC.instantiate(des.DES), - 'des-ecb': des.DES -} -modes.des = modes['des-cbc'] -modes.des3 = modes['des-ede3-cbc'] -module.exports = DES -inherits(DES, CipherBase) -function DES (opts) { - CipherBase.call(this) - var modeName = opts.mode.toLowerCase() - var mode = modes[modeName] - var type - if (opts.decrypt) { - type = 'decrypt' - } else { - type = 'encrypt' - } - var key = opts.key - if (!Buffer.isBuffer(key)) { - key = Buffer.from(key) - } - if (modeName === 'des-ede' || modeName === 'des-ede-cbc') { - key = Buffer.concat([key, key.slice(0, 8)]) - } - var iv = opts.iv - if (!Buffer.isBuffer(iv)) { - iv = Buffer.from(iv) - } - this._des = mode.create({ - key: key, - iv: iv, - type: type - }) -} -DES.prototype._update = function (data) { - return Buffer.from(this._des.update(data)) -} -DES.prototype._final = function () { - return Buffer.from(this._des.final()) -} - -},{"cipher-base":155,"des.js":245,"inherits":396,"safe-buffer":742}],130:[function(require,module,exports){ -exports['des-ecb'] = { - key: 8, - iv: 0 -} -exports['des-cbc'] = exports.des = { - key: 8, - iv: 8 -} -exports['des-ede3-cbc'] = exports.des3 = { - key: 24, - iv: 8 -} -exports['des-ede3'] = { - key: 24, - iv: 0 -} -exports['des-ede-cbc'] = { - key: 16, - iv: 8 -} -exports['des-ede'] = { - key: 16, - iv: 0 -} - -},{}],131:[function(require,module,exports){ -(function (Buffer){ -var bn = require('bn.js'); -var randomBytes = require('randombytes'); -module.exports = crt; -function blind(priv) { - var r = getr(priv); - var blinder = r.toRed(bn.mont(priv.modulus)) - .redPow(new bn(priv.publicExponent)).fromRed(); - return { - blinder: blinder, - unblinder:r.invm(priv.modulus) - }; -} -function crt(msg, priv) { - var blinds = blind(priv); - var len = priv.modulus.byteLength(); - var mod = bn.mont(priv.modulus); - var blinded = new bn(msg).mul(blinds.blinder).umod(priv.modulus); - var c1 = blinded.toRed(bn.mont(priv.prime1)); - var c2 = blinded.toRed(bn.mont(priv.prime2)); - var qinv = priv.coefficient; - var p = priv.prime1; - var q = priv.prime2; - var m1 = c1.redPow(priv.exponent1); - var m2 = c2.redPow(priv.exponent2); - m1 = m1.fromRed(); - m2 = m2.fromRed(); - var h = m1.isub(m2).imul(qinv).umod(p); - h.imul(q); - m2.iadd(h); - return new Buffer(m2.imul(blinds.unblinder).umod(priv.modulus).toArray(false, len)); -} -crt.getr = getr; -function getr(priv) { - var len = priv.modulus.byteLength(); - var r = new bn(randomBytes(len)); - while (r.cmp(priv.modulus) >= 0 || !r.umod(priv.prime1) || !r.umod(priv.prime2)) { - r = new bn(randomBytes(len)); - } - return r; -} - -}).call(this,require("buffer").Buffer) -},{"bn.js":108,"buffer":146,"randombytes":724}],132:[function(require,module,exports){ -module.exports = require('./browser/algorithms.json') - -},{"./browser/algorithms.json":133}],133:[function(require,module,exports){ -module.exports={ - "sha224WithRSAEncryption": { - "sign": "rsa", - "hash": "sha224", - "id": "302d300d06096086480165030402040500041c" - }, - "RSA-SHA224": { - "sign": "ecdsa/rsa", - "hash": "sha224", - "id": "302d300d06096086480165030402040500041c" - }, - "sha256WithRSAEncryption": { - "sign": "rsa", - "hash": "sha256", - "id": "3031300d060960864801650304020105000420" - }, - "RSA-SHA256": { - "sign": "ecdsa/rsa", - "hash": "sha256", - "id": "3031300d060960864801650304020105000420" - }, - "sha384WithRSAEncryption": { - "sign": "rsa", - "hash": "sha384", - "id": "3041300d060960864801650304020205000430" - }, - "RSA-SHA384": { - "sign": "ecdsa/rsa", - "hash": "sha384", - "id": "3041300d060960864801650304020205000430" - }, - "sha512WithRSAEncryption": { - "sign": "rsa", - "hash": "sha512", - "id": "3051300d060960864801650304020305000440" - }, - "RSA-SHA512": { - "sign": "ecdsa/rsa", - "hash": "sha512", - "id": "3051300d060960864801650304020305000440" - }, - "RSA-SHA1": { - "sign": "rsa", - "hash": "sha1", - "id": "3021300906052b0e03021a05000414" - }, - "ecdsa-with-SHA1": { - "sign": "ecdsa", - "hash": "sha1", - "id": "" - }, - "sha256": { - "sign": "ecdsa", - "hash": "sha256", - "id": "" - }, - "sha224": { - "sign": "ecdsa", - "hash": "sha224", - "id": "" - }, - "sha384": { - "sign": "ecdsa", - "hash": "sha384", - "id": "" - }, - "sha512": { - "sign": "ecdsa", - "hash": "sha512", - "id": "" - }, - "DSA-SHA": { - "sign": "dsa", - "hash": "sha1", - "id": "" - }, - "DSA-SHA1": { - "sign": "dsa", - "hash": "sha1", - "id": "" - }, - "DSA": { - "sign": "dsa", - "hash": "sha1", - "id": "" - }, - "DSA-WITH-SHA224": { - "sign": "dsa", - "hash": "sha224", - "id": "" - }, - "DSA-SHA224": { - "sign": "dsa", - "hash": "sha224", - "id": "" - }, - "DSA-WITH-SHA256": { - "sign": "dsa", - "hash": "sha256", - "id": "" - }, - "DSA-SHA256": { - "sign": "dsa", - "hash": "sha256", - "id": "" - }, - "DSA-WITH-SHA384": { - "sign": "dsa", - "hash": "sha384", - "id": "" - }, - "DSA-SHA384": { - "sign": "dsa", - "hash": "sha384", - "id": "" - }, - "DSA-WITH-SHA512": { - "sign": "dsa", - "hash": "sha512", - "id": "" - }, - "DSA-SHA512": { - "sign": "dsa", - "hash": "sha512", - "id": "" - }, - "DSA-RIPEMD160": { - "sign": "dsa", - "hash": "rmd160", - "id": "" - }, - "ripemd160WithRSA": { - "sign": "rsa", - "hash": "rmd160", - "id": "3021300906052b2403020105000414" - }, - "RSA-RIPEMD160": { - "sign": "rsa", - "hash": "rmd160", - "id": "3021300906052b2403020105000414" - }, - "md5WithRSAEncryption": { - "sign": "rsa", - "hash": "md5", - "id": "3020300c06082a864886f70d020505000410" - }, - "RSA-MD5": { - "sign": "rsa", - "hash": "md5", - "id": "3020300c06082a864886f70d020505000410" - } -} - -},{}],134:[function(require,module,exports){ -module.exports={ - "1.3.132.0.10": "secp256k1", - "1.3.132.0.33": "p224", - "1.2.840.10045.3.1.1": "p192", - "1.2.840.10045.3.1.7": "p256", - "1.3.132.0.34": "p384", - "1.3.132.0.35": "p521" -} - -},{}],135:[function(require,module,exports){ -(function (Buffer){ -var createHash = require('create-hash') -var stream = require('stream') -var inherits = require('inherits') -var sign = require('./sign') -var verify = require('./verify') - -var algorithms = require('./algorithms.json') -Object.keys(algorithms).forEach(function (key) { - algorithms[key].id = new Buffer(algorithms[key].id, 'hex') - algorithms[key.toLowerCase()] = algorithms[key] -}) - -function Sign (algorithm) { - stream.Writable.call(this) - - var data = algorithms[algorithm] - if (!data) throw new Error('Unknown message digest') - - this._hashType = data.hash - this._hash = createHash(data.hash) - this._tag = data.id - this._signType = data.sign -} -inherits(Sign, stream.Writable) - -Sign.prototype._write = function _write (data, _, done) { - this._hash.update(data) - done() -} - -Sign.prototype.update = function update (data, enc) { - if (typeof data === 'string') data = new Buffer(data, enc) - - this._hash.update(data) - return this -} - -Sign.prototype.sign = function signMethod (key, enc) { - this.end() - var hash = this._hash.digest() - var sig = sign(hash, key, this._hashType, this._signType, this._tag) - - return enc ? sig.toString(enc) : sig -} - -function Verify (algorithm) { - stream.Writable.call(this) - - var data = algorithms[algorithm] - if (!data) throw new Error('Unknown message digest') - - this._hash = createHash(data.hash) - this._tag = data.id - this._signType = data.sign -} -inherits(Verify, stream.Writable) - -Verify.prototype._write = function _write (data, _, done) { - this._hash.update(data) - done() -} - -Verify.prototype.update = function update (data, enc) { - if (typeof data === 'string') data = new Buffer(data, enc) - - this._hash.update(data) - return this -} - -Verify.prototype.verify = function verifyMethod (key, sig, enc) { - if (typeof sig === 'string') sig = new Buffer(sig, enc) - - this.end() - var hash = this._hash.digest() - return verify(sig, hash, key, this._signType, this._tag) -} - -function createSign (algorithm) { - return new Sign(algorithm) -} - -function createVerify (algorithm) { - return new Verify(algorithm) -} - -module.exports = { - Sign: createSign, - Verify: createVerify, - createSign: createSign, - createVerify: createVerify -} - -}).call(this,require("buffer").Buffer) -},{"./algorithms.json":133,"./sign":136,"./verify":137,"buffer":146,"create-hash":239,"inherits":396,"stream":808}],136:[function(require,module,exports){ -(function (Buffer){ -// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js -var createHmac = require('create-hmac') -var crt = require('browserify-rsa') -var EC = require('elliptic').ec -var BN = require('bn.js') -var parseKeys = require('parse-asn1') -var curves = require('./curves.json') - -function sign (hash, key, hashType, signType, tag) { - var priv = parseKeys(key) - if (priv.curve) { - // rsa keys can be interpreted as ecdsa ones in openssl - if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') throw new Error('wrong private key type') - return ecSign(hash, priv) - } else if (priv.type === 'dsa') { - if (signType !== 'dsa') throw new Error('wrong private key type') - return dsaSign(hash, priv, hashType) - } else { - if (signType !== 'rsa' && signType !== 'ecdsa/rsa') throw new Error('wrong private key type') - } - hash = Buffer.concat([tag, hash]) - var len = priv.modulus.byteLength() - var pad = [ 0, 1 ] - while (hash.length + pad.length + 1 < len) pad.push(0xff) - pad.push(0x00) - var i = -1 - while (++i < hash.length) pad.push(hash[i]) - - var out = crt(pad, priv) - return out -} - -function ecSign (hash, priv) { - var curveId = curves[priv.curve.join('.')] - if (!curveId) throw new Error('unknown curve ' + priv.curve.join('.')) - - var curve = new EC(curveId) - var key = curve.keyFromPrivate(priv.privateKey) - var out = key.sign(hash) - - return new Buffer(out.toDER()) -} - -function dsaSign (hash, priv, algo) { - var x = priv.params.priv_key - var p = priv.params.p - var q = priv.params.q - var g = priv.params.g - var r = new BN(0) - var k - var H = bits2int(hash, q).mod(q) - var s = false - var kv = getKey(x, q, hash, algo) - while (s === false) { - k = makeKey(q, kv, algo) - r = makeR(g, k, p, q) - s = k.invm(q).imul(H.add(x.mul(r))).mod(q) - if (s.cmpn(0) === 0) { - s = false - r = new BN(0) - } - } - return toDER(r, s) -} - -function toDER (r, s) { - r = r.toArray() - s = s.toArray() - - // Pad values - if (r[0] & 0x80) r = [ 0 ].concat(r) - if (s[0] & 0x80) s = [ 0 ].concat(s) - - var total = r.length + s.length + 4 - var res = [ 0x30, total, 0x02, r.length ] - res = res.concat(r, [ 0x02, s.length ], s) - return new Buffer(res) -} - -function getKey (x, q, hash, algo) { - x = new Buffer(x.toArray()) - if (x.length < q.byteLength()) { - var zeros = new Buffer(q.byteLength() - x.length) - zeros.fill(0) - x = Buffer.concat([ zeros, x ]) - } - var hlen = hash.length - var hbits = bits2octets(hash, q) - var v = new Buffer(hlen) - v.fill(1) - var k = new Buffer(hlen) - k.fill(0) - k = createHmac(algo, k).update(v).update(new Buffer([ 0 ])).update(x).update(hbits).digest() - v = createHmac(algo, k).update(v).digest() - k = createHmac(algo, k).update(v).update(new Buffer([ 1 ])).update(x).update(hbits).digest() - v = createHmac(algo, k).update(v).digest() - return { k: k, v: v } -} - -function bits2int (obits, q) { - var bits = new BN(obits) - var shift = (obits.length << 3) - q.bitLength() - if (shift > 0) bits.ishrn(shift) - return bits -} - -function bits2octets (bits, q) { - bits = bits2int(bits, q) - bits = bits.mod(q) - var out = new Buffer(bits.toArray()) - if (out.length < q.byteLength()) { - var zeros = new Buffer(q.byteLength() - out.length) - zeros.fill(0) - out = Buffer.concat([ zeros, out ]) - } - return out -} - -function makeKey (q, kv, algo) { - var t - var k - - do { - t = new Buffer(0) - - while (t.length * 8 < q.bitLength()) { - kv.v = createHmac(algo, kv.k).update(kv.v).digest() - t = Buffer.concat([ t, kv.v ]) - } - - k = bits2int(t, q) - kv.k = createHmac(algo, kv.k).update(kv.v).update(new Buffer([ 0 ])).digest() - kv.v = createHmac(algo, kv.k).update(kv.v).digest() - } while (k.cmp(q) !== -1) - - return k -} - -function makeR (g, k, p, q) { - return g.toRed(BN.mont(p)).redPow(k).fromRed().mod(q) -} - -module.exports = sign -module.exports.getKey = getKey -module.exports.makeKey = makeKey - -}).call(this,require("buffer").Buffer) -},{"./curves.json":134,"bn.js":108,"browserify-rsa":131,"buffer":146,"create-hmac":241,"elliptic":317,"parse-asn1":670}],137:[function(require,module,exports){ -(function (Buffer){ -// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js -var BN = require('bn.js') -var EC = require('elliptic').ec -var parseKeys = require('parse-asn1') -var curves = require('./curves.json') - -function verify (sig, hash, key, signType, tag) { - var pub = parseKeys(key) - if (pub.type === 'ec') { - // rsa keys can be interpreted as ecdsa ones in openssl - if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') throw new Error('wrong public key type') - return ecVerify(sig, hash, pub) - } else if (pub.type === 'dsa') { - if (signType !== 'dsa') throw new Error('wrong public key type') - return dsaVerify(sig, hash, pub) - } else { - if (signType !== 'rsa' && signType !== 'ecdsa/rsa') throw new Error('wrong public key type') - } - hash = Buffer.concat([tag, hash]) - var len = pub.modulus.byteLength() - var pad = [ 1 ] - var padNum = 0 - while (hash.length + pad.length + 2 < len) { - pad.push(0xff) - padNum++ - } - pad.push(0x00) - var i = -1 - while (++i < hash.length) { - pad.push(hash[i]) - } - pad = new Buffer(pad) - var red = BN.mont(pub.modulus) - sig = new BN(sig).toRed(red) - - sig = sig.redPow(new BN(pub.publicExponent)) - sig = new Buffer(sig.fromRed().toArray()) - var out = padNum < 8 ? 1 : 0 - len = Math.min(sig.length, pad.length) - if (sig.length !== pad.length) out = 1 - - i = -1 - while (++i < len) out |= sig[i] ^ pad[i] - return out === 0 -} - -function ecVerify (sig, hash, pub) { - var curveId = curves[pub.data.algorithm.curve.join('.')] - if (!curveId) throw new Error('unknown curve ' + pub.data.algorithm.curve.join('.')) - - var curve = new EC(curveId) - var pubkey = pub.data.subjectPrivateKey.data - - return curve.verify(hash, sig, pubkey) -} - -function dsaVerify (sig, hash, pub) { - var p = pub.data.p - var q = pub.data.q - var g = pub.data.g - var y = pub.data.pub_key - var unpacked = parseKeys.signature.decode(sig, 'der') - var s = unpacked.s - var r = unpacked.r - checkValue(s, q) - checkValue(r, q) - var montp = BN.mont(p) - var w = s.invm(q) - var v = g.toRed(montp) - .redPow(new BN(hash).mul(w).mod(q)) - .fromRed() - .mul(y.toRed(montp).redPow(r.mul(w).mod(q)).fromRed()) - .mod(p) - .mod(q) - return v.cmp(r) === 0 -} - -function checkValue (b, q) { - if (b.cmpn(0) <= 0) throw new Error('invalid sig') - if (b.cmp(q) >= q) throw new Error('invalid sig') -} - -module.exports = verify - -}).call(this,require("buffer").Buffer) -},{"./curves.json":134,"bn.js":108,"buffer":146,"elliptic":317,"parse-asn1":670}],138:[function(require,module,exports){ -var basex = require('base-x') -var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz' - -module.exports = basex(ALPHABET) - -},{"base-x":54}],139:[function(require,module,exports){ -'use strict' - -var base58 = require('bs58') -var Buffer = require('safe-buffer').Buffer - -module.exports = function (checksumFn) { - // Encode a buffer as a base58-check encoded string - function encode (payload) { - var checksum = checksumFn(payload) - - return base58.encode(Buffer.concat([ - payload, - checksum - ], payload.length + 4)) - } - - function decodeRaw (buffer) { - var payload = buffer.slice(0, -4) - var checksum = buffer.slice(-4) - var newChecksum = checksumFn(payload) - - if (checksum[0] ^ newChecksum[0] | - checksum[1] ^ newChecksum[1] | - checksum[2] ^ newChecksum[2] | - checksum[3] ^ newChecksum[3]) return - - return payload - } - - // Decode a base58-check encoded string to a buffer, no result if checksum is wrong - function decodeUnsafe (string) { - var buffer = base58.decodeUnsafe(string) - if (!buffer) return - - return decodeRaw(buffer) - } - - function decode (string) { - var buffer = base58.decode(string) - var payload = decodeRaw(buffer, checksumFn) - if (!payload) throw new Error('Invalid checksum') - return payload - } - - return { - encode: encode, - decode: decode, - decodeUnsafe: decodeUnsafe - } -} - -},{"bs58":138,"safe-buffer":742}],140:[function(require,module,exports){ -'use strict' - -var createHash = require('create-hash') -var bs58checkBase = require('./base') - -// SHA256(SHA256(buffer)) -function sha256x2 (buffer) { - var tmp = createHash('sha256').update(buffer).digest() - return createHash('sha256').update(tmp).digest() -} - -module.exports = bs58checkBase(sha256x2) - -},{"./base":139,"create-hash":239}],141:[function(require,module,exports){ -arguments[4][139][0].apply(exports,arguments) -},{"bs58":138,"dup":139,"safe-buffer":742}],142:[function(require,module,exports){ -(function (Buffer){ -'use strict' - -var createHash = require('create-hash') -var bs58grscheckBase = require('./base') -var groestlhash = require('groestl-hash-js') - -// GROESTL512(GROESTL512(buffer)) -function groestl (buffer) { - return Buffer(groestlhash.groestl_2(buffer, 1, 1)) -} - -module.exports = bs58grscheckBase(groestl) - -}).call(this,require("buffer").Buffer) -},{"./base":141,"buffer":146,"create-hash":239,"groestl-hash-js":339}],143:[function(require,module,exports){ -module.exports = function(a, b) { - if (typeof a.compare === 'function') return a.compare(b) - if (a === b) return 0 - - var x = a.length - var y = b.length - - var i = 0 - var len = Math.min(x, y) - while (i < len) { - if (a[i] !== b[i]) break - - ++i - } - - if (i !== len) { - x = a[i] - y = b[i] - } - - if (x < y) return -1 - if (y < x) return 1 - return 0 -} - - -},{}],144:[function(require,module,exports){ -(function (Buffer){ -module.exports = function xor (a, b) { - var length = Math.min(a.length, b.length) - var buffer = new Buffer(length) - - for (var i = 0; i < length; ++i) { - buffer[i] = a[i] ^ b[i] - } - - return buffer -} - -}).call(this,require("buffer").Buffer) -},{"buffer":146}],145:[function(require,module,exports){ -module.exports = function xorInplace (a, b) { - var length = Math.min(a.length, b.length) - - for (var i = 0; i < length; ++i) { - a[i] = a[i] ^ b[i] - } - - return a.slice(0, length) -} - -},{}],146:[function(require,module,exports){ -(function (Buffer){ -/*! - * The buffer module from node.js, for the browser. - * - * @author Feross Aboukhadijeh - * @license MIT - */ -/* eslint-disable no-proto */ - -'use strict' - -var base64 = require('base64-js') -var ieee754 = require('ieee754') -var customInspectSymbol = - (typeof Symbol === 'function' && typeof Symbol.for === 'function') - ? Symbol.for('nodejs.util.inspect.custom') - : null - -exports.Buffer = Buffer -exports.SlowBuffer = SlowBuffer -exports.INSPECT_MAX_BYTES = 50 - -var K_MAX_LENGTH = 0x7fffffff -exports.kMaxLength = K_MAX_LENGTH - -/** - * If `Buffer.TYPED_ARRAY_SUPPORT`: - * === true Use Uint8Array implementation (fastest) - * === false Print warning and recommend using `buffer` v4.x which has an Object - * implementation (most compatible, even IE6) - * - * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, - * Opera 11.6+, iOS 4.2+. - * - * We report that the browser does not support typed arrays if the are not subclassable - * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array` - * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support - * for __proto__ and has a buggy typed array implementation. - */ -Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport() - -if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' && - typeof console.error === 'function') { - console.error( - 'This browser lacks typed array (Uint8Array) support which is required by ' + - '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.' - ) -} - -function typedArraySupport () { - // Can typed array instances can be augmented? - try { - var arr = new Uint8Array(1) - var proto = { foo: function () { return 42 } } - Object.setPrototypeOf(proto, Uint8Array.prototype) - Object.setPrototypeOf(arr, proto) - return arr.foo() === 42 - } catch (e) { - return false - } -} - -Object.defineProperty(Buffer.prototype, 'parent', { - enumerable: true, - get: function () { - if (!Buffer.isBuffer(this)) return undefined - return this.buffer - } -}) - -Object.defineProperty(Buffer.prototype, 'offset', { - enumerable: true, - get: function () { - if (!Buffer.isBuffer(this)) return undefined - return this.byteOffset - } -}) - -function createBuffer (length) { - if (length > K_MAX_LENGTH) { - throw new RangeError('The value "' + length + '" is invalid for option "size"') - } - // Return an augmented `Uint8Array` instance - var buf = new Uint8Array(length) - Object.setPrototypeOf(buf, Buffer.prototype) - return buf -} - -/** - * The Buffer constructor returns instances of `Uint8Array` that have their - * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of - * `Uint8Array`, so the returned instances will have all the node `Buffer` methods - * and the `Uint8Array` methods. Square bracket notation works as expected -- it - * returns a single octet. - * - * The `Uint8Array` prototype remains unmodified. - */ - -function Buffer (arg, encodingOrOffset, length) { - // Common case. - if (typeof arg === 'number') { - if (typeof encodingOrOffset === 'string') { - throw new TypeError( - 'The "string" argument must be of type string. Received type number' - ) - } - return allocUnsafe(arg) - } - return from(arg, encodingOrOffset, length) -} - -// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97 -if (typeof Symbol !== 'undefined' && Symbol.species != null && - Buffer[Symbol.species] === Buffer) { - Object.defineProperty(Buffer, Symbol.species, { - value: null, - configurable: true, - enumerable: false, - writable: false - }) -} - -Buffer.poolSize = 8192 // not used by this implementation - -function from (value, encodingOrOffset, length) { - if (typeof value === 'string') { - return fromString(value, encodingOrOffset) - } - - if (ArrayBuffer.isView(value)) { - return fromArrayLike(value) - } - - if (value == null) { - throw new TypeError( - 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' + - 'or Array-like Object. Received type ' + (typeof value) - ) - } - - if (isInstance(value, ArrayBuffer) || - (value && isInstance(value.buffer, ArrayBuffer))) { - return fromArrayBuffer(value, encodingOrOffset, length) - } - - if (typeof value === 'number') { - throw new TypeError( - 'The "value" argument must not be of type number. Received type number' - ) - } - - var valueOf = value.valueOf && value.valueOf() - if (valueOf != null && valueOf !== value) { - return Buffer.from(valueOf, encodingOrOffset, length) - } - - var b = fromObject(value) - if (b) return b - - if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null && - typeof value[Symbol.toPrimitive] === 'function') { - return Buffer.from( - value[Symbol.toPrimitive]('string'), encodingOrOffset, length - ) - } - - throw new TypeError( - 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' + - 'or Array-like Object. Received type ' + (typeof value) - ) -} - -/** - * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError - * if value is a number. - * Buffer.from(str[, encoding]) - * Buffer.from(array) - * Buffer.from(buffer) - * Buffer.from(arrayBuffer[, byteOffset[, length]]) - **/ -Buffer.from = function (value, encodingOrOffset, length) { - return from(value, encodingOrOffset, length) -} - -// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug: -// https://github.com/feross/buffer/pull/148 -Object.setPrototypeOf(Buffer.prototype, Uint8Array.prototype) -Object.setPrototypeOf(Buffer, Uint8Array) - -function assertSize (size) { - if (typeof size !== 'number') { - throw new TypeError('"size" argument must be of type number') - } else if (size < 0) { - throw new RangeError('The value "' + size + '" is invalid for option "size"') - } -} - -function alloc (size, fill, encoding) { - assertSize(size) - if (size <= 0) { - return createBuffer(size) - } - if (fill !== undefined) { - // Only pay attention to encoding if it's a string. This - // prevents accidentally sending in a number that would - // be interpretted as a start offset. - return typeof encoding === 'string' - ? createBuffer(size).fill(fill, encoding) - : createBuffer(size).fill(fill) - } - return createBuffer(size) -} - -/** - * Creates a new filled Buffer instance. - * alloc(size[, fill[, encoding]]) - **/ -Buffer.alloc = function (size, fill, encoding) { - return alloc(size, fill, encoding) -} - -function allocUnsafe (size) { - assertSize(size) - return createBuffer(size < 0 ? 0 : checked(size) | 0) -} - -/** - * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance. - * */ -Buffer.allocUnsafe = function (size) { - return allocUnsafe(size) -} -/** - * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance. - */ -Buffer.allocUnsafeSlow = function (size) { - return allocUnsafe(size) -} - -function fromString (string, encoding) { - if (typeof encoding !== 'string' || encoding === '') { - encoding = 'utf8' - } - - if (!Buffer.isEncoding(encoding)) { - throw new TypeError('Unknown encoding: ' + encoding) - } - - var length = byteLength(string, encoding) | 0 - var buf = createBuffer(length) - - var actual = buf.write(string, encoding) - - if (actual !== length) { - // Writing a hex string, for example, that contains invalid characters will - // cause everything after the first invalid character to be ignored. (e.g. - // 'abxxcd' will be treated as 'ab') - buf = buf.slice(0, actual) - } - - return buf -} - -function fromArrayLike (array) { - var length = array.length < 0 ? 0 : checked(array.length) | 0 - var buf = createBuffer(length) - for (var i = 0; i < length; i += 1) { - buf[i] = array[i] & 255 - } - return buf -} - -function fromArrayBuffer (array, byteOffset, length) { - if (byteOffset < 0 || array.byteLength < byteOffset) { - throw new RangeError('"offset" is outside of buffer bounds') - } - - if (array.byteLength < byteOffset + (length || 0)) { - throw new RangeError('"length" is outside of buffer bounds') - } - - var buf - if (byteOffset === undefined && length === undefined) { - buf = new Uint8Array(array) - } else if (length === undefined) { - buf = new Uint8Array(array, byteOffset) - } else { - buf = new Uint8Array(array, byteOffset, length) - } - - // Return an augmented `Uint8Array` instance - Object.setPrototypeOf(buf, Buffer.prototype) - - return buf -} - -function fromObject (obj) { - if (Buffer.isBuffer(obj)) { - var len = checked(obj.length) | 0 - var buf = createBuffer(len) - - if (buf.length === 0) { - return buf - } - - obj.copy(buf, 0, 0, len) - return buf - } - - if (obj.length !== undefined) { - if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) { - return createBuffer(0) - } - return fromArrayLike(obj) - } - - if (obj.type === 'Buffer' && Array.isArray(obj.data)) { - return fromArrayLike(obj.data) - } -} - -function checked (length) { - // Note: cannot use `length < K_MAX_LENGTH` here because that fails when - // length is NaN (which is otherwise coerced to zero.) - if (length >= K_MAX_LENGTH) { - throw new RangeError('Attempt to allocate Buffer larger than maximum ' + - 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes') - } - return length | 0 -} - -function SlowBuffer (length) { - if (+length != length) { // eslint-disable-line eqeqeq - length = 0 - } - return Buffer.alloc(+length) -} - -Buffer.isBuffer = function isBuffer (b) { - return b != null && b._isBuffer === true && - b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false -} - -Buffer.compare = function compare (a, b) { - if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength) - if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength) - if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) { - throw new TypeError( - 'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array' - ) - } - - if (a === b) return 0 - - var x = a.length - var y = b.length - - for (var i = 0, len = Math.min(x, y); i < len; ++i) { - if (a[i] !== b[i]) { - x = a[i] - y = b[i] - break - } - } - - if (x < y) return -1 - if (y < x) return 1 - return 0 -} - -Buffer.isEncoding = function isEncoding (encoding) { - switch (String(encoding).toLowerCase()) { - case 'hex': - case 'utf8': - case 'utf-8': - case 'ascii': - case 'latin1': - case 'binary': - case 'base64': - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return true - default: - return false - } -} - -Buffer.concat = function concat (list, length) { - if (!Array.isArray(list)) { - throw new TypeError('"list" argument must be an Array of Buffers') - } - - if (list.length === 0) { - return Buffer.alloc(0) - } - - var i - if (length === undefined) { - length = 0 - for (i = 0; i < list.length; ++i) { - length += list[i].length - } - } - - var buffer = Buffer.allocUnsafe(length) - var pos = 0 - for (i = 0; i < list.length; ++i) { - var buf = list[i] - if (isInstance(buf, Uint8Array)) { - buf = Buffer.from(buf) - } - if (!Buffer.isBuffer(buf)) { - throw new TypeError('"list" argument must be an Array of Buffers') - } - buf.copy(buffer, pos) - pos += buf.length - } - return buffer -} - -function byteLength (string, encoding) { - if (Buffer.isBuffer(string)) { - return string.length - } - if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) { - return string.byteLength - } - if (typeof string !== 'string') { - throw new TypeError( - 'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' + - 'Received type ' + typeof string - ) - } - - var len = string.length - var mustMatch = (arguments.length > 2 && arguments[2] === true) - if (!mustMatch && len === 0) return 0 - - // Use a for loop to avoid recursion - var loweredCase = false - for (;;) { - switch (encoding) { - case 'ascii': - case 'latin1': - case 'binary': - return len - case 'utf8': - case 'utf-8': - return utf8ToBytes(string).length - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return len * 2 - case 'hex': - return len >>> 1 - case 'base64': - return base64ToBytes(string).length - default: - if (loweredCase) { - return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8 - } - encoding = ('' + encoding).toLowerCase() - loweredCase = true - } - } -} -Buffer.byteLength = byteLength - -function slowToString (encoding, start, end) { - var loweredCase = false - - // No need to verify that "this.length <= MAX_UINT32" since it's a read-only - // property of a typed array. - - // This behaves neither like String nor Uint8Array in that we set start/end - // to their upper/lower bounds if the value passed is out of range. - // undefined is handled specially as per ECMA-262 6th Edition, - // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization. - if (start === undefined || start < 0) { - start = 0 - } - // Return early if start > this.length. Done here to prevent potential uint32 - // coercion fail below. - if (start > this.length) { - return '' - } - - if (end === undefined || end > this.length) { - end = this.length - } - - if (end <= 0) { - return '' - } - - // Force coersion to uint32. This will also coerce falsey/NaN values to 0. - end >>>= 0 - start >>>= 0 - - if (end <= start) { - return '' - } - - if (!encoding) encoding = 'utf8' - - while (true) { - switch (encoding) { - case 'hex': - return hexSlice(this, start, end) - - case 'utf8': - case 'utf-8': - return utf8Slice(this, start, end) - - case 'ascii': - return asciiSlice(this, start, end) - - case 'latin1': - case 'binary': - return latin1Slice(this, start, end) - - case 'base64': - return base64Slice(this, start, end) - - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return utf16leSlice(this, start, end) - - default: - if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) - encoding = (encoding + '').toLowerCase() - loweredCase = true - } - } -} - -// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package) -// to detect a Buffer instance. It's not possible to use `instanceof Buffer` -// reliably in a browserify context because there could be multiple different -// copies of the 'buffer' package in use. This method works even for Buffer -// instances that were created from another copy of the `buffer` package. -// See: https://github.com/feross/buffer/issues/154 -Buffer.prototype._isBuffer = true - -function swap (b, n, m) { - var i = b[n] - b[n] = b[m] - b[m] = i -} - -Buffer.prototype.swap16 = function swap16 () { - var len = this.length - if (len % 2 !== 0) { - throw new RangeError('Buffer size must be a multiple of 16-bits') - } - for (var i = 0; i < len; i += 2) { - swap(this, i, i + 1) - } - return this -} - -Buffer.prototype.swap32 = function swap32 () { - var len = this.length - if (len % 4 !== 0) { - throw new RangeError('Buffer size must be a multiple of 32-bits') - } - for (var i = 0; i < len; i += 4) { - swap(this, i, i + 3) - swap(this, i + 1, i + 2) - } - return this -} - -Buffer.prototype.swap64 = function swap64 () { - var len = this.length - if (len % 8 !== 0) { - throw new RangeError('Buffer size must be a multiple of 64-bits') - } - for (var i = 0; i < len; i += 8) { - swap(this, i, i + 7) - swap(this, i + 1, i + 6) - swap(this, i + 2, i + 5) - swap(this, i + 3, i + 4) - } - return this -} - -Buffer.prototype.toString = function toString () { - var length = this.length - if (length === 0) return '' - if (arguments.length === 0) return utf8Slice(this, 0, length) - return slowToString.apply(this, arguments) -} - -Buffer.prototype.toLocaleString = Buffer.prototype.toString - -Buffer.prototype.equals = function equals (b) { - if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') - if (this === b) return true - return Buffer.compare(this, b) === 0 -} - -Buffer.prototype.inspect = function inspect () { - var str = '' - var max = exports.INSPECT_MAX_BYTES - str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim() - if (this.length > max) str += ' ... ' - return '' -} -if (customInspectSymbol) { - Buffer.prototype[customInspectSymbol] = Buffer.prototype.inspect -} - -Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) { - if (isInstance(target, Uint8Array)) { - target = Buffer.from(target, target.offset, target.byteLength) - } - if (!Buffer.isBuffer(target)) { - throw new TypeError( - 'The "target" argument must be one of type Buffer or Uint8Array. ' + - 'Received type ' + (typeof target) - ) - } - - if (start === undefined) { - start = 0 - } - if (end === undefined) { - end = target ? target.length : 0 - } - if (thisStart === undefined) { - thisStart = 0 - } - if (thisEnd === undefined) { - thisEnd = this.length - } - - if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) { - throw new RangeError('out of range index') - } - - if (thisStart >= thisEnd && start >= end) { - return 0 - } - if (thisStart >= thisEnd) { - return -1 - } - if (start >= end) { - return 1 - } - - start >>>= 0 - end >>>= 0 - thisStart >>>= 0 - thisEnd >>>= 0 - - if (this === target) return 0 - - var x = thisEnd - thisStart - var y = end - start - var len = Math.min(x, y) - - var thisCopy = this.slice(thisStart, thisEnd) - var targetCopy = target.slice(start, end) - - for (var i = 0; i < len; ++i) { - if (thisCopy[i] !== targetCopy[i]) { - x = thisCopy[i] - y = targetCopy[i] - break - } - } - - if (x < y) return -1 - if (y < x) return 1 - return 0 -} - -// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`, -// OR the last index of `val` in `buffer` at offset <= `byteOffset`. -// -// Arguments: -// - buffer - a Buffer to search -// - val - a string, Buffer, or number -// - byteOffset - an index into `buffer`; will be clamped to an int32 -// - encoding - an optional encoding, relevant is val is a string -// - dir - true for indexOf, false for lastIndexOf -function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) { - // Empty buffer means no match - if (buffer.length === 0) return -1 - - // Normalize byteOffset - if (typeof byteOffset === 'string') { - encoding = byteOffset - byteOffset = 0 - } else if (byteOffset > 0x7fffffff) { - byteOffset = 0x7fffffff - } else if (byteOffset < -0x80000000) { - byteOffset = -0x80000000 - } - byteOffset = +byteOffset // Coerce to Number. - if (numberIsNaN(byteOffset)) { - // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer - byteOffset = dir ? 0 : (buffer.length - 1) - } - - // Normalize byteOffset: negative offsets start from the end of the buffer - if (byteOffset < 0) byteOffset = buffer.length + byteOffset - if (byteOffset >= buffer.length) { - if (dir) return -1 - else byteOffset = buffer.length - 1 - } else if (byteOffset < 0) { - if (dir) byteOffset = 0 - else return -1 - } - - // Normalize val - if (typeof val === 'string') { - val = Buffer.from(val, encoding) - } - - // Finally, search either indexOf (if dir is true) or lastIndexOf - if (Buffer.isBuffer(val)) { - // Special case: looking for empty string/buffer always fails - if (val.length === 0) { - return -1 - } - return arrayIndexOf(buffer, val, byteOffset, encoding, dir) - } else if (typeof val === 'number') { - val = val & 0xFF // Search for a byte value [0-255] - if (typeof Uint8Array.prototype.indexOf === 'function') { - if (dir) { - return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset) - } else { - return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset) - } - } - return arrayIndexOf(buffer, [val], byteOffset, encoding, dir) - } - - throw new TypeError('val must be string, number or Buffer') -} - -function arrayIndexOf (arr, val, byteOffset, encoding, dir) { - var indexSize = 1 - var arrLength = arr.length - var valLength = val.length - - if (encoding !== undefined) { - encoding = String(encoding).toLowerCase() - if (encoding === 'ucs2' || encoding === 'ucs-2' || - encoding === 'utf16le' || encoding === 'utf-16le') { - if (arr.length < 2 || val.length < 2) { - return -1 - } - indexSize = 2 - arrLength /= 2 - valLength /= 2 - byteOffset /= 2 - } - } - - function read (buf, i) { - if (indexSize === 1) { - return buf[i] - } else { - return buf.readUInt16BE(i * indexSize) - } - } - - var i - if (dir) { - var foundIndex = -1 - for (i = byteOffset; i < arrLength; i++) { - if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) { - if (foundIndex === -1) foundIndex = i - if (i - foundIndex + 1 === valLength) return foundIndex * indexSize - } else { - if (foundIndex !== -1) i -= i - foundIndex - foundIndex = -1 - } - } - } else { - if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength - for (i = byteOffset; i >= 0; i--) { - var found = true - for (var j = 0; j < valLength; j++) { - if (read(arr, i + j) !== read(val, j)) { - found = false - break - } - } - if (found) return i - } - } - - return -1 -} - -Buffer.prototype.includes = function includes (val, byteOffset, encoding) { - return this.indexOf(val, byteOffset, encoding) !== -1 -} - -Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) { - return bidirectionalIndexOf(this, val, byteOffset, encoding, true) -} - -Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) { - return bidirectionalIndexOf(this, val, byteOffset, encoding, false) -} - -function hexWrite (buf, string, offset, length) { - offset = Number(offset) || 0 - var remaining = buf.length - offset - if (!length) { - length = remaining - } else { - length = Number(length) - if (length > remaining) { - length = remaining - } - } - - var strLen = string.length - - if (length > strLen / 2) { - length = strLen / 2 - } - for (var i = 0; i < length; ++i) { - var parsed = parseInt(string.substr(i * 2, 2), 16) - if (numberIsNaN(parsed)) return i - buf[offset + i] = parsed - } - return i -} - -function utf8Write (buf, string, offset, length) { - return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length) -} - -function asciiWrite (buf, string, offset, length) { - return blitBuffer(asciiToBytes(string), buf, offset, length) -} - -function latin1Write (buf, string, offset, length) { - return asciiWrite(buf, string, offset, length) -} - -function base64Write (buf, string, offset, length) { - return blitBuffer(base64ToBytes(string), buf, offset, length) -} - -function ucs2Write (buf, string, offset, length) { - return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length) -} - -Buffer.prototype.write = function write (string, offset, length, encoding) { - // Buffer#write(string) - if (offset === undefined) { - encoding = 'utf8' - length = this.length - offset = 0 - // Buffer#write(string, encoding) - } else if (length === undefined && typeof offset === 'string') { - encoding = offset - length = this.length - offset = 0 - // Buffer#write(string, offset[, length][, encoding]) - } else if (isFinite(offset)) { - offset = offset >>> 0 - if (isFinite(length)) { - length = length >>> 0 - if (encoding === undefined) encoding = 'utf8' - } else { - encoding = length - length = undefined - } - } else { - throw new Error( - 'Buffer.write(string, encoding, offset[, length]) is no longer supported' - ) - } - - var remaining = this.length - offset - if (length === undefined || length > remaining) length = remaining - - if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) { - throw new RangeError('Attempt to write outside buffer bounds') - } - - if (!encoding) encoding = 'utf8' - - var loweredCase = false - for (;;) { - switch (encoding) { - case 'hex': - return hexWrite(this, string, offset, length) - - case 'utf8': - case 'utf-8': - return utf8Write(this, string, offset, length) - - case 'ascii': - return asciiWrite(this, string, offset, length) - - case 'latin1': - case 'binary': - return latin1Write(this, string, offset, length) - - case 'base64': - // Warning: maxLength not taken into account in base64Write - return base64Write(this, string, offset, length) - - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return ucs2Write(this, string, offset, length) - - default: - if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) - encoding = ('' + encoding).toLowerCase() - loweredCase = true - } - } -} - -Buffer.prototype.toJSON = function toJSON () { - return { - type: 'Buffer', - data: Array.prototype.slice.call(this._arr || this, 0) - } -} - -function base64Slice (buf, start, end) { - if (start === 0 && end === buf.length) { - return base64.fromByteArray(buf) - } else { - return base64.fromByteArray(buf.slice(start, end)) - } -} - -function utf8Slice (buf, start, end) { - end = Math.min(buf.length, end) - var res = [] - - var i = start - while (i < end) { - var firstByte = buf[i] - var codePoint = null - var bytesPerSequence = (firstByte > 0xEF) ? 4 - : (firstByte > 0xDF) ? 3 - : (firstByte > 0xBF) ? 2 - : 1 - - if (i + bytesPerSequence <= end) { - var secondByte, thirdByte, fourthByte, tempCodePoint - - switch (bytesPerSequence) { - case 1: - if (firstByte < 0x80) { - codePoint = firstByte - } - break - case 2: - secondByte = buf[i + 1] - if ((secondByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F) - if (tempCodePoint > 0x7F) { - codePoint = tempCodePoint - } - } - break - case 3: - secondByte = buf[i + 1] - thirdByte = buf[i + 2] - if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F) - if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) { - codePoint = tempCodePoint - } - } - break - case 4: - secondByte = buf[i + 1] - thirdByte = buf[i + 2] - fourthByte = buf[i + 3] - if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F) - if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) { - codePoint = tempCodePoint - } - } - } - } - - if (codePoint === null) { - // we did not generate a valid codePoint so insert a - // replacement char (U+FFFD) and advance only 1 byte - codePoint = 0xFFFD - bytesPerSequence = 1 - } else if (codePoint > 0xFFFF) { - // encode to utf16 (surrogate pair dance) - codePoint -= 0x10000 - res.push(codePoint >>> 10 & 0x3FF | 0xD800) - codePoint = 0xDC00 | codePoint & 0x3FF - } - - res.push(codePoint) - i += bytesPerSequence - } - - return decodeCodePointsArray(res) -} - -// Based on http://stackoverflow.com/a/22747272/680742, the browser with -// the lowest limit is Chrome, with 0x10000 args. -// We go 1 magnitude less, for safety -var MAX_ARGUMENTS_LENGTH = 0x1000 - -function decodeCodePointsArray (codePoints) { - var len = codePoints.length - if (len <= MAX_ARGUMENTS_LENGTH) { - return String.fromCharCode.apply(String, codePoints) // avoid extra slice() - } - - // Decode in chunks to avoid "call stack size exceeded". - var res = '' - var i = 0 - while (i < len) { - res += String.fromCharCode.apply( - String, - codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH) - ) - } - return res -} - -function asciiSlice (buf, start, end) { - var ret = '' - end = Math.min(buf.length, end) - - for (var i = start; i < end; ++i) { - ret += String.fromCharCode(buf[i] & 0x7F) - } - return ret -} - -function latin1Slice (buf, start, end) { - var ret = '' - end = Math.min(buf.length, end) - - for (var i = start; i < end; ++i) { - ret += String.fromCharCode(buf[i]) - } - return ret -} - -function hexSlice (buf, start, end) { - var len = buf.length - - if (!start || start < 0) start = 0 - if (!end || end < 0 || end > len) end = len - - var out = '' - for (var i = start; i < end; ++i) { - out += hexSliceLookupTable[buf[i]] - } - return out -} - -function utf16leSlice (buf, start, end) { - var bytes = buf.slice(start, end) - var res = '' - for (var i = 0; i < bytes.length; i += 2) { - res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256)) - } - return res -} - -Buffer.prototype.slice = function slice (start, end) { - var len = this.length - start = ~~start - end = end === undefined ? len : ~~end - - if (start < 0) { - start += len - if (start < 0) start = 0 - } else if (start > len) { - start = len - } - - if (end < 0) { - end += len - if (end < 0) end = 0 - } else if (end > len) { - end = len - } - - if (end < start) end = start - - var newBuf = this.subarray(start, end) - // Return an augmented `Uint8Array` instance - Object.setPrototypeOf(newBuf, Buffer.prototype) - - return newBuf -} - -/* - * Need to make sure that buffer isn't trying to write out of bounds. - */ -function checkOffset (offset, ext, length) { - if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint') - if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length') -} - -Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) { - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var val = this[offset] - var mul = 1 - var i = 0 - while (++i < byteLength && (mul *= 0x100)) { - val += this[offset + i] * mul - } - - return val -} - -Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) { - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) { - checkOffset(offset, byteLength, this.length) - } - - var val = this[offset + --byteLength] - var mul = 1 - while (byteLength > 0 && (mul *= 0x100)) { - val += this[offset + --byteLength] * mul - } - - return val -} - -Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 1, this.length) - return this[offset] -} - -Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 2, this.length) - return this[offset] | (this[offset + 1] << 8) -} - -Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 2, this.length) - return (this[offset] << 8) | this[offset + 1] -} - -Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - - return ((this[offset]) | - (this[offset + 1] << 8) | - (this[offset + 2] << 16)) + - (this[offset + 3] * 0x1000000) -} - -Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset] * 0x1000000) + - ((this[offset + 1] << 16) | - (this[offset + 2] << 8) | - this[offset + 3]) -} - -Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) { - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var val = this[offset] - var mul = 1 - var i = 0 - while (++i < byteLength && (mul *= 0x100)) { - val += this[offset + i] * mul - } - mul *= 0x80 - - if (val >= mul) val -= Math.pow(2, 8 * byteLength) - - return val -} - -Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) { - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var i = byteLength - var mul = 1 - var val = this[offset + --i] - while (i > 0 && (mul *= 0x100)) { - val += this[offset + --i] * mul - } - mul *= 0x80 - - if (val >= mul) val -= Math.pow(2, 8 * byteLength) - - return val -} - -Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 1, this.length) - if (!(this[offset] & 0x80)) return (this[offset]) - return ((0xff - this[offset] + 1) * -1) -} - -Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 2, this.length) - var val = this[offset] | (this[offset + 1] << 8) - return (val & 0x8000) ? val | 0xFFFF0000 : val -} - -Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 2, this.length) - var val = this[offset + 1] | (this[offset] << 8) - return (val & 0x8000) ? val | 0xFFFF0000 : val -} - -Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset]) | - (this[offset + 1] << 8) | - (this[offset + 2] << 16) | - (this[offset + 3] << 24) -} - -Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset] << 24) | - (this[offset + 1] << 16) | - (this[offset + 2] << 8) | - (this[offset + 3]) -} - -Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - return ieee754.read(this, offset, true, 23, 4) -} - -Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - return ieee754.read(this, offset, false, 23, 4) -} - -Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 8, this.length) - return ieee754.read(this, offset, true, 52, 8) -} - -Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 8, this.length) - return ieee754.read(this, offset, false, 52, 8) -} - -function checkInt (buf, value, offset, ext, max, min) { - if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance') - if (value > max || value < min) throw new RangeError('"value" argument is out of bounds') - if (offset + ext > buf.length) throw new RangeError('Index out of range') -} - -Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) { - value = +value - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) { - var maxBytes = Math.pow(2, 8 * byteLength) - 1 - checkInt(this, value, offset, byteLength, maxBytes, 0) - } - - var mul = 1 - var i = 0 - this[offset] = value & 0xFF - while (++i < byteLength && (mul *= 0x100)) { - this[offset + i] = (value / mul) & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) { - value = +value - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) { - var maxBytes = Math.pow(2, 8 * byteLength) - 1 - checkInt(this, value, offset, byteLength, maxBytes, 0) - } - - var i = byteLength - 1 - var mul = 1 - this[offset + i] = value & 0xFF - while (--i >= 0 && (mul *= 0x100)) { - this[offset + i] = (value / mul) & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0) - this[offset] = (value & 0xff) - return offset + 1 -} - -Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - return offset + 2 -} - -Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) - this[offset] = (value >>> 8) - this[offset + 1] = (value & 0xff) - return offset + 2 -} - -Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) - this[offset + 3] = (value >>> 24) - this[offset + 2] = (value >>> 16) - this[offset + 1] = (value >>> 8) - this[offset] = (value & 0xff) - return offset + 4 -} - -Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) - this[offset] = (value >>> 24) - this[offset + 1] = (value >>> 16) - this[offset + 2] = (value >>> 8) - this[offset + 3] = (value & 0xff) - return offset + 4 -} - -Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) { - var limit = Math.pow(2, (8 * byteLength) - 1) - - checkInt(this, value, offset, byteLength, limit - 1, -limit) - } - - var i = 0 - var mul = 1 - var sub = 0 - this[offset] = value & 0xFF - while (++i < byteLength && (mul *= 0x100)) { - if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) { - sub = 1 - } - this[offset + i] = ((value / mul) >> 0) - sub & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) { - var limit = Math.pow(2, (8 * byteLength) - 1) - - checkInt(this, value, offset, byteLength, limit - 1, -limit) - } - - var i = byteLength - 1 - var mul = 1 - var sub = 0 - this[offset + i] = value & 0xFF - while (--i >= 0 && (mul *= 0x100)) { - if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) { - sub = 1 - } - this[offset + i] = ((value / mul) >> 0) - sub & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80) - if (value < 0) value = 0xff + value + 1 - this[offset] = (value & 0xff) - return offset + 1 -} - -Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - return offset + 2 -} - -Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) - this[offset] = (value >>> 8) - this[offset + 1] = (value & 0xff) - return offset + 2 -} - -Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - this[offset + 2] = (value >>> 16) - this[offset + 3] = (value >>> 24) - return offset + 4 -} - -Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) - if (value < 0) value = 0xffffffff + value + 1 - this[offset] = (value >>> 24) - this[offset + 1] = (value >>> 16) - this[offset + 2] = (value >>> 8) - this[offset + 3] = (value & 0xff) - return offset + 4 -} - -function checkIEEE754 (buf, value, offset, ext, max, min) { - if (offset + ext > buf.length) throw new RangeError('Index out of range') - if (offset < 0) throw new RangeError('Index out of range') -} - -function writeFloat (buf, value, offset, littleEndian, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) { - checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38) - } - ieee754.write(buf, value, offset, littleEndian, 23, 4) - return offset + 4 -} - -Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) { - return writeFloat(this, value, offset, true, noAssert) -} - -Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) { - return writeFloat(this, value, offset, false, noAssert) -} - -function writeDouble (buf, value, offset, littleEndian, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) { - checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308) - } - ieee754.write(buf, value, offset, littleEndian, 52, 8) - return offset + 8 -} - -Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) { - return writeDouble(this, value, offset, true, noAssert) -} - -Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) { - return writeDouble(this, value, offset, false, noAssert) -} - -// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length) -Buffer.prototype.copy = function copy (target, targetStart, start, end) { - if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer') - if (!start) start = 0 - if (!end && end !== 0) end = this.length - if (targetStart >= target.length) targetStart = target.length - if (!targetStart) targetStart = 0 - if (end > 0 && end < start) end = start - - // Copy 0 bytes; we're done - if (end === start) return 0 - if (target.length === 0 || this.length === 0) return 0 - - // Fatal error conditions - if (targetStart < 0) { - throw new RangeError('targetStart out of bounds') - } - if (start < 0 || start >= this.length) throw new RangeError('Index out of range') - if (end < 0) throw new RangeError('sourceEnd out of bounds') - - // Are we oob? - if (end > this.length) end = this.length - if (target.length - targetStart < end - start) { - end = target.length - targetStart + start - } - - var len = end - start - - if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') { - // Use built-in when available, missing from IE11 - this.copyWithin(targetStart, start, end) - } else if (this === target && start < targetStart && targetStart < end) { - // descending copy from end - for (var i = len - 1; i >= 0; --i) { - target[i + targetStart] = this[i + start] - } - } else { - Uint8Array.prototype.set.call( - target, - this.subarray(start, end), - targetStart - ) - } - - return len -} - -// Usage: -// buffer.fill(number[, offset[, end]]) -// buffer.fill(buffer[, offset[, end]]) -// buffer.fill(string[, offset[, end]][, encoding]) -Buffer.prototype.fill = function fill (val, start, end, encoding) { - // Handle string cases: - if (typeof val === 'string') { - if (typeof start === 'string') { - encoding = start - start = 0 - end = this.length - } else if (typeof end === 'string') { - encoding = end - end = this.length - } - if (encoding !== undefined && typeof encoding !== 'string') { - throw new TypeError('encoding must be a string') - } - if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) { - throw new TypeError('Unknown encoding: ' + encoding) - } - if (val.length === 1) { - var code = val.charCodeAt(0) - if ((encoding === 'utf8' && code < 128) || - encoding === 'latin1') { - // Fast path: If `val` fits into a single byte, use that numeric value. - val = code - } - } - } else if (typeof val === 'number') { - val = val & 255 - } else if (typeof val === 'boolean') { - val = Number(val) - } - - // Invalid ranges are not set to a default, so can range check early. - if (start < 0 || this.length < start || this.length < end) { - throw new RangeError('Out of range index') - } - - if (end <= start) { - return this - } - - start = start >>> 0 - end = end === undefined ? this.length : end >>> 0 - - if (!val) val = 0 - - var i - if (typeof val === 'number') { - for (i = start; i < end; ++i) { - this[i] = val - } - } else { - var bytes = Buffer.isBuffer(val) - ? val - : Buffer.from(val, encoding) - var len = bytes.length - if (len === 0) { - throw new TypeError('The value "' + val + - '" is invalid for argument "value"') - } - for (i = 0; i < end - start; ++i) { - this[i + start] = bytes[i % len] - } - } - - return this -} - -// HELPER FUNCTIONS -// ================ - -var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g - -function base64clean (str) { - // Node takes equal signs as end of the Base64 encoding - str = str.split('=')[0] - // Node strips out invalid characters like \n and \t from the string, base64-js does not - str = str.trim().replace(INVALID_BASE64_RE, '') - // Node converts strings with length < 2 to '' - if (str.length < 2) return '' - // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not - while (str.length % 4 !== 0) { - str = str + '=' - } - return str -} - -function utf8ToBytes (string, units) { - units = units || Infinity - var codePoint - var length = string.length - var leadSurrogate = null - var bytes = [] - - for (var i = 0; i < length; ++i) { - codePoint = string.charCodeAt(i) - - // is surrogate component - if (codePoint > 0xD7FF && codePoint < 0xE000) { - // last char was a lead - if (!leadSurrogate) { - // no lead yet - if (codePoint > 0xDBFF) { - // unexpected trail - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - continue - } else if (i + 1 === length) { - // unpaired lead - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - continue - } - - // valid lead - leadSurrogate = codePoint - - continue - } - - // 2 leads in a row - if (codePoint < 0xDC00) { - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - leadSurrogate = codePoint - continue - } - - // valid surrogate pair - codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000 - } else if (leadSurrogate) { - // valid bmp char, but last char was a lead - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - } - - leadSurrogate = null - - // encode utf8 - if (codePoint < 0x80) { - if ((units -= 1) < 0) break - bytes.push(codePoint) - } else if (codePoint < 0x800) { - if ((units -= 2) < 0) break - bytes.push( - codePoint >> 0x6 | 0xC0, - codePoint & 0x3F | 0x80 - ) - } else if (codePoint < 0x10000) { - if ((units -= 3) < 0) break - bytes.push( - codePoint >> 0xC | 0xE0, - codePoint >> 0x6 & 0x3F | 0x80, - codePoint & 0x3F | 0x80 - ) - } else if (codePoint < 0x110000) { - if ((units -= 4) < 0) break - bytes.push( - codePoint >> 0x12 | 0xF0, - codePoint >> 0xC & 0x3F | 0x80, - codePoint >> 0x6 & 0x3F | 0x80, - codePoint & 0x3F | 0x80 - ) - } else { - throw new Error('Invalid code point') - } - } - - return bytes -} - -function asciiToBytes (str) { - var byteArray = [] - for (var i = 0; i < str.length; ++i) { - // Node's code seems to be doing this and not & 0x7F.. - byteArray.push(str.charCodeAt(i) & 0xFF) - } - return byteArray -} - -function utf16leToBytes (str, units) { - var c, hi, lo - var byteArray = [] - for (var i = 0; i < str.length; ++i) { - if ((units -= 2) < 0) break - - c = str.charCodeAt(i) - hi = c >> 8 - lo = c % 256 - byteArray.push(lo) - byteArray.push(hi) - } - - return byteArray -} - -function base64ToBytes (str) { - return base64.toByteArray(base64clean(str)) -} - -function blitBuffer (src, dst, offset, length) { - for (var i = 0; i < length; ++i) { - if ((i + offset >= dst.length) || (i >= src.length)) break - dst[i + offset] = src[i] - } - return i -} - -// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass -// the `instanceof` check but they should be treated as of that type. -// See: https://github.com/feross/buffer/issues/166 -function isInstance (obj, type) { - return obj instanceof type || - (obj != null && obj.constructor != null && obj.constructor.name != null && - obj.constructor.name === type.name) -} -function numberIsNaN (obj) { - // For IE11 support - return obj !== obj // eslint-disable-line no-self-compare -} - -// Create lookup table for `toString('hex')` -// See: https://github.com/feross/buffer/issues/219 -var hexSliceLookupTable = (function () { - var alphabet = '0123456789abcdef' - var table = new Array(256) - for (var i = 0; i < 16; ++i) { - var i16 = i * 16 - for (var j = 0; j < 16; ++j) { - table[i16 + j] = alphabet[i] + alphabet[j] - } - } - return table -})() - -}).call(this,require("buffer").Buffer) -},{"base64-js":56,"buffer":146,"ieee754":395}],147:[function(require,module,exports){ -/** - * @license - * https://github.com/bitcoincashjs/cashaddr - * Copyright (c) 2017-2018 Emilio Almansi - * Distributed under the MIT software license, see the accompanying - * file LICENSE or http://www.opensource.org/licenses/mit-license.php. - */ - -'use strict'; - -var validate = require('./validation').validate; - -/** - * Base32 encoding and decoding. - * - * @module base32 - */ - -/** - * Charset containing the 32 symbols used in the base32 encoding. - * @private - */ -var CHARSET = 'qpzry9x8gf2tvdw0s3jn54khce6mua7l'; - -/** - * Inverted index mapping each symbol into its index within the charset. - * @private - */ -var CHARSET_INVERSE_INDEX = { - 'q': 0, 'p': 1, 'z': 2, 'r': 3, 'y': 4, '9': 5, 'x': 6, '8': 7, - 'g': 8, 'f': 9, '2': 10, 't': 11, 'v': 12, 'd': 13, 'w': 14, '0': 15, - 's': 16, '3': 17, 'j': 18, 'n': 19, '5': 20, '4': 21, 'k': 22, 'h': 23, - 'c': 24, 'e': 25, '6': 26, 'm': 27, 'u': 28, 'a': 29, '7': 30, 'l': 31, -}; - -/** - * Encodes the given array of 5-bit integers as a base32-encoded string. - * - * @static - * @param {Uint8Array} data Array of integers between 0 and 31 inclusive. - * @returns {string} - * @throws {ValidationError} - */ -function encode(data) { - validate(data instanceof Uint8Array, 'Invalid data: ' + data + '.'); - var base32 = ''; - for (var i = 0; i < data.length; ++i) { - var value = data[i]; - validate(0 <= value && value < 32, 'Invalid value: ' + value + '.'); - base32 += CHARSET[value]; - } - return base32; -} - -/** - * Decodes the given base32-encoded string into an array of 5-bit integers. - * - * @static - * @param {string} string - * @returns {Uint8Array} - * @throws {ValidationError} - */ -function decode(string) { - validate(typeof string === 'string', 'Invalid base32-encoded string: ' + string + '.'); - var data = new Uint8Array(string.length); - for (var i = 0; i < string.length; ++i) { - var value = string[i]; - validate(value in CHARSET_INVERSE_INDEX, 'Invalid value: ' + value + '.'); - data[i] = CHARSET_INVERSE_INDEX[value]; - } - return data; -} - -module.exports = { - encode: encode, - decode: decode, -}; - -},{"./validation":150}],148:[function(require,module,exports){ -/** - * @license - * https://github.com/bitcoincashjs/cashaddr - * Copyright (c) 2017-2018 Emilio Almansi - * Distributed under the MIT software license, see the accompanying - * file LICENSE or http://www.opensource.org/licenses/mit-license.php. - */ - -'use strict'; - -var base32 = require('./base32'); -var bigInt = require('big-integer'); -var convertBits = require('./convertBits'); -var validation = require('./validation'); -var validate = validation.validate; - -/** - * Encoding and decoding of the new Cash Address format for Bitcoin Cash.
- * Compliant with the original cashaddr specification: - * {@link https://github.com/Bitcoin-UAHF/spec/blob/master/cashaddr.md} - * @module cashaddr - */ - -/** - * Encodes a hash from a given type into a Bitcoin Cash address with the given prefix. - * - * @static - * @param {string} prefix Network prefix. E.g.: 'bitcoincash'. - * @param {string} type Type of address to generate. Either 'P2PKH' or 'P2SH'. - * @param {Uint8Array} hash Hash to encode represented as an array of 8-bit integers. - * @returns {string} - * @throws {ValidationError} - */ -function encode(prefix, type, hash) { - validate(typeof prefix === 'string' && isValidPrefix(prefix), 'Invalid prefix: ' + prefix + '.'); - validate(typeof type === 'string', 'Invalid type: ' + type + '.'); - validate(hash instanceof Uint8Array, 'Invalid hash: ' + hash + '.'); - var prefixData = concat(prefixToUint5Array(prefix), new Uint8Array(1)); - var versionByte = getTypeBits(type) + getHashSizeBits(hash); - var payloadData = toUint5Array(concat(Uint8Array.of(versionByte), hash)); - var checksumData = concat(concat(prefixData, payloadData), new Uint8Array(8)); - var payload = concat(payloadData, checksumToUint5Array(polymod(checksumData))); - return prefix + ':' + base32.encode(payload); -} - -/** - * Decodes the given address into its constituting prefix, type and hash. See [#encode()]{@link encode}. - * - * @static - * @param {string} address Address to decode. E.g.: 'bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a'. - * @returns {object} - * @throws {ValidationError} - */ -function decode(address) { - validate(typeof address === 'string' && hasSingleCase(address), 'Invalid address: ' + address + '.'); - var pieces = address.toLowerCase().split(':'); - validate(pieces.length === 2, 'Missing prefix: ' + address + '.'); - var prefix = pieces[0]; - var payload = base32.decode(pieces[1]); - validate(validChecksum(prefix, payload), 'Invalid checksum: ' + address + '.'); - var payloadData = fromUint5Array(payload.slice(0, -8)); - var versionByte = payloadData[0]; - var hash = payloadData.slice(1); - validate(getHashSize(versionByte) === hash.length * 8, 'Invalid hash size: ' + address + '.'); - var type = getType(versionByte); - return { - prefix: prefix, - type: type, - hash: hash, - }; -} - -/** - * Error thrown when encoding or decoding fail due to invalid input. - * - * @constructor ValidationError - * @param {string} message Error description. - */ -var ValidationError = validation.ValidationError; - -/** - * Valid address prefixes. - * - * @private - */ -var VALID_PREFIXES = ['bitcoincash', 'bchtest', 'bchreg', 'simpleledger', 'slptest', 'slpreg']; - -/** - * Checks whether a string is a valid prefix; ie., it has a single letter case - * and is one of 'bitcoincash', 'bchtest', or 'bchreg'. - * - * @private - * @param {string} prefix - * @returns {boolean} - */ -function isValidPrefix(prefix) { - return hasSingleCase(prefix) && VALID_PREFIXES.indexOf(prefix.toLowerCase()) !== -1; -} - -/** - * Derives an array from the given prefix to be used in the computation - * of the address' checksum. - * - * @private - * @param {string} prefix Network prefix. E.g.: 'bitcoincash'. - * @returns {Uint8Array} - */ -function prefixToUint5Array(prefix) { - var result = new Uint8Array(prefix.length); - for (var i = 0; i < prefix.length; ++i) { - result[i] = prefix[i].charCodeAt(0) & 31; - } - return result; -} - -/** - * Returns an array representation of the given checksum to be encoded - * within the address' payload. - * - * @private - * @param {BigInteger} checksum Computed checksum. - * @returns {Uint8Array} - */ -function checksumToUint5Array(checksum) { - var result = new Uint8Array(8); - for (var i = 0; i < 8; ++i) { - result[7 - i] = checksum.and(31).toJSNumber(); - checksum = checksum.shiftRight(5); - } - return result; -} - -/** - * Returns the bit representation of the given type within the version - * byte. - * - * @private - * @param {string} type Address type. Either 'P2PKH' or 'P2SH'. - * @returns {number} - * @throws {ValidationError} - */ -function getTypeBits(type) { - switch (type) { - case 'P2PKH': - return 0; - case 'P2SH': - return 8; - default: - throw new ValidationError('Invalid type: ' + type + '.'); - } -} - -/** - * Retrieves the address type from its bit representation within the - * version byte. - * - * @private - * @param {number} versionByte - * @returns {string} - * @throws {ValidationError} - */ -function getType(versionByte) { - switch (versionByte & 120) { - case 0: - return 'P2PKH'; - case 8: - return 'P2SH'; - default: - throw new ValidationError('Invalid address type in version byte: ' + versionByte + '.'); - } -} - -/** - * Returns the bit representation of the length in bits of the given - * hash within the version byte. - * - * @private - * @param {Uint8Array} hash Hash to encode represented as an array of 8-bit integers. - * @returns {number} - * @throws {ValidationError} - */ -function getHashSizeBits(hash) { - switch (hash.length * 8) { - case 160: - return 0; - case 192: - return 1; - case 224: - return 2; - case 256: - return 3; - case 320: - return 4; - case 384: - return 5; - case 448: - return 6; - case 512: - return 7; - default: - throw new ValidationError('Invalid hash size: ' + hash.length + '.'); - } -} - -/** - * Retrieves the the length in bits of the encoded hash from its bit - * representation within the version byte. - * - * @private - * @param {number} versionByte - * @returns {number} - */ -function getHashSize(versionByte) { - switch (versionByte & 7) { - case 0: - return 160; - case 1: - return 192; - case 2: - return 224; - case 3: - return 256; - case 4: - return 320; - case 5: - return 384; - case 6: - return 448; - case 7: - return 512; - } -} - -/** - * Converts an array of 8-bit integers into an array of 5-bit integers, - * right-padding with zeroes if necessary. - * - * @private - * @param {Uint8Array} data - * @returns {Uint8Array} - */ -function toUint5Array(data) { - return convertBits(data, 8, 5); -} - -/** - * Converts an array of 5-bit integers back into an array of 8-bit integers, - * removing extra zeroes left from padding if necessary. - * Throws a {@link ValidationError} if input is not a zero-padded array of 8-bit integers. - * - * @private - * @param {Uint8Array} data - * @returns {Uint8Array} - * @throws {ValidationError} - */ -function fromUint5Array(data) { - return convertBits(data, 5, 8, true); -} - -/** - * Returns the concatenation a and b. - * - * @private - * @param {Uint8Array} a - * @param {Uint8Array} b - * @returns {Uint8Array} - * @throws {ValidationError} - */ -function concat(a, b) { - var ab = new Uint8Array(a.length + b.length); - ab.set(a); - ab.set(b, a.length); - return ab; -} - -/** - * Computes a checksum from the given input data as specified for the CashAddr - * format: https://github.com/Bitcoin-UAHF/spec/blob/master/cashaddr.md. - * - * @private - * @param {Uint8Array} data Array of 5-bit integers over which the checksum is to be computed. - * @returns {BigInteger} - */ -function polymod(data) { - var GENERATOR = [0x98f2bc8e61, 0x79b76d99e2, 0xf33e5fb3c4, 0xae2eabe2a8, 0x1e4f43e470]; - var checksum = bigInt(1); - for (var i = 0; i < data.length; ++i) { - var value = data[i]; - var topBits = checksum.shiftRight(35); - checksum = checksum.and(0x07ffffffff).shiftLeft(5).xor(value); - for (var j = 0; j < GENERATOR.length; ++j) { - if (topBits.shiftRight(j).and(1).equals(1)) { - checksum = checksum.xor(GENERATOR[j]); - } - } - } - return checksum.xor(1); -} - -/** - * Verify that the payload has not been corrupted by checking that the - * checksum is valid. - * - * @private - * @param {string} prefix Network prefix. E.g.: 'bitcoincash'. - * @param {Uint8Array} payload Array of 5-bit integers containing the address' payload. - * @returns {boolean} - */ -function validChecksum(prefix, payload) { - var prefixData = concat(prefixToUint5Array(prefix), new Uint8Array(1)); - var checksumData = concat(prefixData, payload); - return polymod(checksumData).equals(0); -} - -/** - * Returns true if, and only if, the given string contains either uppercase - * or lowercase letters, but not both. - * - * @private - * @param {string} string Input string. - * @returns {boolean} - */ -function hasSingleCase(string) { - return string === string.toLowerCase() || string === string.toUpperCase(); -} - -module.exports = { - encode: encode, - decode: decode, - ValidationError: ValidationError, -}; - -},{"./base32":147,"./convertBits":149,"./validation":150,"big-integer":60}],149:[function(require,module,exports){ -// Copyright (c) 2017-2018 Emilio Almansi -// Copyright (c) 2017 Pieter Wuille -// -// Permission is hereby granted, free of charge, to any person obtaining a copy -// of this software and associated documentation files (the "Software"), to deal -// in the Software without restriction, including without limitation the rights -// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -// copies of the Software, and to permit persons to whom the Software is -// furnished to do so, subject to the following conditions: -// -// The above copyright notice and this permission notice shall be included in -// all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -// THE SOFTWARE. - -'use strict'; - -var validate = require('./validation').validate; - -/** - * Converts an array of integers made up of 'from' bits into an - * array of integers made up of 'to' bits. The output array is - * zero-padded if necessary, unless strict mode is true. - * Throws a {@link ValidationError} if input is invalid. - * Original by Pieter Wuille: https://github.com/sipa/bech32. - * - * @param {Uint8Array} data Array of integers made up of 'from' bits. - * @param {number} from Length in bits of elements in the input array. - * @param {number} to Length in bits of elements in the output array. - * @param {bool} strictMode Require the conversion to be completed without padding. - * @returns {Uint8Array} - */ -module.exports = function(data, from, to, strictMode) { - var length = strictMode - ? Math.floor(data.length * from / to) - : Math.ceil(data.length * from / to); - var mask = (1 << to) - 1; - var result = new Uint8Array(length); - var index = 0; - var accumulator = 0; - var bits = 0; - for (var i = 0; i < data.length; ++i) { - var value = data[i]; - validate(0 <= value && (value >> from) === 0, 'Invalid value: ' + value + '.'); - accumulator = (accumulator << from) | value; - bits += from; - while (bits >= to) { - bits -= to; - result[index] = (accumulator >> bits) & mask; - ++index; - } - } - if (!strictMode) { - if (bits > 0) { - result[index] = (accumulator << (to - bits)) & mask; - ++index; - } - } else { - validate( - bits < from && ((accumulator << (to - bits)) & mask) === 0, - 'Input cannot be converted to ' + to + ' bits without padding, but strict mode was used.' - ); - } - return result; -}; - -},{"./validation":150}],150:[function(require,module,exports){ -/** - * @license - * https://github.com/bitcoincashjs/cashaddr - * Copyright (c) 2017-2018 Emilio Almansi - * Distributed under the MIT software license, see the accompanying - * file LICENSE or http://www.opensource.org/licenses/mit-license.php. - */ - -'use strict'; - -/** - * Validation utility. - * - * @module validation - */ - -/** - * Error thrown when encoding or decoding fail due to invalid input. - * - * @constructor ValidationError - * @param {string} message Error description. - */ -function ValidationError(message) { - var error = new Error(); - this.name = error.name = 'ValidationError'; - this.message = error.message = message; - this.stack = error.stack; -} - -ValidationError.prototype = Object.create(Error.prototype); - -/** - * Validates a given condition, throwing a {@link ValidationError} if - * the given condition does not hold. - * - * @static - * @param {boolean} condition Condition to validate. - * @param {string} message Error message in case the condition does not hold. - */ -function validate(condition, message) { - if (!condition) { - throw new ValidationError(message); - } -} - -module.exports = { - ValidationError: ValidationError, - validate: validate, -}; - -},{}],151:[function(require,module,exports){ -arguments[4][147][0].apply(exports,arguments) -},{"./validation":154,"dup":147}],152:[function(require,module,exports){ -/** - * @license - * https://github.com/bitcoincashjs/cashaddr - * Copyright (c) 2017-2018 Emilio Almansi - * Distributed under the MIT software license, see the accompanying - * file LICENSE or http://www.opensource.org/licenses/mit-license.php. - */ - -'use strict'; - -var base32 = require('./base32'); -var bigInt = require('big-integer'); -var convertBits = require('./convertBits'); -var validation = require('./validation'); -var validate = validation.validate; - -/** - * Encoding and decoding of the new Cash Address format for Bitcoin Cash.
- * Compliant with the original cashaddr specification: - * {@link https://github.com/Bitcoin-UAHF/spec/blob/master/cashaddr.md} - * @module cashaddr - */ - -/** - * Encodes a hash from a given type into a Bitcoin Cash address with the given prefix. - * - * @static - * @param {string} prefix Network prefix. E.g.: 'bitcoincash'. - * @param {string} type Type of address to generate. Either 'P2PKH' or 'P2SH'. - * @param {Uint8Array} hash Hash to encode represented as an array of 8-bit integers. - * @returns {string} - * @throws {ValidationError} - */ -function encode(prefix, type, hash) { - validate(typeof prefix === 'string' && isValidPrefix(prefix), 'Invalid prefix: ' + prefix + '.'); - validate(typeof type === 'string', 'Invalid type: ' + type + '.'); - validate(hash instanceof Uint8Array, 'Invalid hash: ' + hash + '.'); - var prefixData = concat(prefixToUint5Array(prefix), new Uint8Array(1)); - var versionByte = getTypeBits(type) + getHashSizeBits(hash); - var payloadData = toUint5Array(concat(new Uint8Array([versionByte]), hash)); - var checksumData = concat(concat(prefixData, payloadData), new Uint8Array(8)); - var payload = concat(payloadData, checksumToUint5Array(polymod(checksumData))); - return prefix + ':' + base32.encode(payload); -} - -/** - * Decodes the given address into its constituting prefix, type and hash. See [#encode()]{@link encode}. - * - * @static - * @param {string} address Address to decode. E.g.: 'bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a'. - * @returns {object} - * @throws {ValidationError} - */ -function decode(address) { - validate(typeof address === 'string' && hasSingleCase(address), 'Invalid address: ' + address + '.'); - var pieces = address.toLowerCase().split(':'); - validate(pieces.length === 2, 'Missing prefix: ' + address + '.'); - var prefix = pieces[0]; - var payload = base32.decode(pieces[1]); - validate(validChecksum(prefix, payload), 'Invalid checksum: ' + address + '.'); - var payloadData = fromUint5Array(payload.subarray(0, -8)); - var versionByte = payloadData[0]; - var hash = payloadData.subarray(1); - validate(getHashSize(versionByte) === hash.length * 8, 'Invalid hash size: ' + address + '.'); - var type = getType(versionByte); - return { - prefix: prefix, - type: type, - hash: hash, - }; -} - -/** - * Error thrown when encoding or decoding fail due to invalid input. - * - * @constructor ValidationError - * @param {string} message Error description. - */ -var ValidationError = validation.ValidationError; - -/** - * Valid address prefixes. - * - * @private - */ -var VALID_PREFIXES = ['bitcoincash', 'bchtest', 'bchreg']; - -/** - * Checks whether a string is a valid prefix; ie., it has a single letter case - * and is one of 'bitcoincash', 'bchtest', or 'bchreg'. - * - * @private - * @param {string} prefix - * @returns {boolean} - */ -function isValidPrefix(prefix) { - return hasSingleCase(prefix) && VALID_PREFIXES.indexOf(prefix.toLowerCase()) !== -1; -} - -/** - * Derives an array from the given prefix to be used in the computation - * of the address' checksum. - * - * @private - * @param {string} prefix Network prefix. E.g.: 'bitcoincash'. - * @returns {Uint8Array} - */ -function prefixToUint5Array(prefix) { - var result = new Uint8Array(prefix.length); - for (var i = 0; i < prefix.length; ++i) { - result[i] = prefix[i].charCodeAt(0) & 31; - } - return result; -} - -/** - * Returns an array representation of the given checksum to be encoded - * within the address' payload. - * - * @private - * @param {BigInteger} checksum Computed checksum. - * @returns {Uint8Array} - */ -function checksumToUint5Array(checksum) { - var result = new Uint8Array(8); - for (var i = 0; i < 8; ++i) { - result[7 - i] = checksum.and(31).toJSNumber(); - checksum = checksum.shiftRight(5); - } - return result; -} - -/** - * Returns the bit representation of the given type within the version - * byte. - * - * @private - * @param {string} type Address type. Either 'P2PKH' or 'P2SH'. - * @returns {number} - * @throws {ValidationError} - */ -function getTypeBits(type) { - switch (type) { - case 'P2PKH': - return 0; - case 'P2SH': - return 8; - default: - throw new ValidationError('Invalid type: ' + type + '.'); - } -} - -/** - * Retrieves the address type from its bit representation within the - * version byte. - * - * @private - * @param {number} versionByte - * @returns {string} - * @throws {ValidationError} - */ -function getType(versionByte) { - switch (versionByte & 120) { - case 0: - return 'P2PKH'; - case 8: - return 'P2SH'; - default: - throw new ValidationError('Invalid address type in version byte: ' + versionByte + '.'); - } -} - -/** - * Returns the bit representation of the length in bits of the given - * hash within the version byte. - * - * @private - * @param {Uint8Array} hash Hash to encode represented as an array of 8-bit integers. - * @returns {number} - * @throws {ValidationError} - */ -function getHashSizeBits(hash) { - switch (hash.length * 8) { - case 160: - return 0; - case 192: - return 1; - case 224: - return 2; - case 256: - return 3; - case 320: - return 4; - case 384: - return 5; - case 448: - return 6; - case 512: - return 7; - default: - throw new ValidationError('Invalid hash size: ' + hash.length + '.'); - } -} - -/** - * Retrieves the the length in bits of the encoded hash from its bit - * representation within the version byte. - * - * @private - * @param {number} versionByte - * @returns {number} - */ -function getHashSize(versionByte) { - switch (versionByte & 7) { - case 0: - return 160; - case 1: - return 192; - case 2: - return 224; - case 3: - return 256; - case 4: - return 320; - case 5: - return 384; - case 6: - return 448; - case 7: - return 512; - } -} - -/** - * Converts an array of 8-bit integers into an array of 5-bit integers, - * right-padding with zeroes if necessary. - * - * @private - * @param {Uint8Array} data - * @returns {Uint8Array} - */ -function toUint5Array(data) { - return convertBits(data, 8, 5); -} - -/** - * Converts an array of 5-bit integers back into an array of 8-bit integers, - * removing extra zeroes left from padding if necessary. - * Throws a {@link ValidationError} if input is not a zero-padded array of 8-bit integers. - * - * @private - * @param {Uint8Array} data - * @returns {Uint8Array} - * @throws {ValidationError} - */ -function fromUint5Array(data) { - return convertBits(data, 5, 8, true); -} - -/** - * Returns the concatenation a and b. - * - * @private - * @param {Uint8Array} a - * @param {Uint8Array} b - * @returns {Uint8Array} - * @throws {ValidationError} - */ -function concat(a, b) { - var ab = new Uint8Array(a.length + b.length); - ab.set(a); - ab.set(b, a.length); - return ab; -} - -/** - * Computes a checksum from the given input data as specified for the CashAddr - * format: https://github.com/Bitcoin-UAHF/spec/blob/master/cashaddr.md. - * - * @private - * @param {Uint8Array} data Array of 5-bit integers over which the checksum is to be computed. - * @returns {BigInteger} - */ -function polymod(data) { - var GENERATOR = [0x98f2bc8e61, 0x79b76d99e2, 0xf33e5fb3c4, 0xae2eabe2a8, 0x1e4f43e470]; - var checksum = bigInt(1); - for (var i = 0; i < data.length; ++i) { - var value = data[i]; - var topBits = checksum.shiftRight(35); - checksum = checksum.and(0x07ffffffff).shiftLeft(5).xor(value); - for (var j = 0; j < GENERATOR.length; ++j) { - if (topBits.shiftRight(j).and(1).equals(1)) { - checksum = checksum.xor(GENERATOR[j]); - } - } - } - return checksum.xor(1); -} - -/** - * Verify that the payload has not been corrupted by checking that the - * checksum is valid. - * - * @private - * @param {string} prefix Network prefix. E.g.: 'bitcoincash'. - * @param {Uint8Array} payload Array of 5-bit integers containing the address' payload. - * @returns {boolean} - */ -function validChecksum(prefix, payload) { - var prefixData = concat(prefixToUint5Array(prefix), new Uint8Array(1)); - var checksumData = concat(prefixData, payload); - return polymod(checksumData).equals(0); -} - -/** - * Returns true if, and only if, the given string contains either uppercase - * or lowercase letters, but not both. - * - * @private - * @param {string} string Input string. - * @returns {boolean} - */ -function hasSingleCase(string) { - return string === string.toLowerCase() || string === string.toUpperCase(); -} - -module.exports = { - encode: encode, - decode: decode, - ValidationError: ValidationError, -}; - -},{"./base32":151,"./convertBits":153,"./validation":154,"big-integer":60}],153:[function(require,module,exports){ -arguments[4][149][0].apply(exports,arguments) -},{"./validation":154,"dup":149}],154:[function(require,module,exports){ -arguments[4][150][0].apply(exports,arguments) -},{"dup":150}],155:[function(require,module,exports){ -var Buffer = require('safe-buffer').Buffer -var Transform = require('stream').Transform -var StringDecoder = require('string_decoder').StringDecoder -var inherits = require('inherits') - -function CipherBase (hashMode) { - Transform.call(this) - this.hashMode = typeof hashMode === 'string' - if (this.hashMode) { - this[hashMode] = this._finalOrDigest - } else { - this.final = this._finalOrDigest - } - if (this._final) { - this.__final = this._final - this._final = null - } - this._decoder = null - this._encoding = null -} -inherits(CipherBase, Transform) - -CipherBase.prototype.update = function (data, inputEnc, outputEnc) { - if (typeof data === 'string') { - data = Buffer.from(data, inputEnc) - } - - var outData = this._update(data) - if (this.hashMode) return this - - if (outputEnc) { - outData = this._toString(outData, outputEnc) - } - - return outData -} - -CipherBase.prototype.setAutoPadding = function () {} -CipherBase.prototype.getAuthTag = function () { - throw new Error('trying to get auth tag in unsupported state') -} - -CipherBase.prototype.setAuthTag = function () { - throw new Error('trying to set auth tag in unsupported state') -} - -CipherBase.prototype.setAAD = function () { - throw new Error('trying to set aad in unsupported state') -} - -CipherBase.prototype._transform = function (data, _, next) { - var err - try { - if (this.hashMode) { - this._update(data) - } else { - this.push(this._update(data)) - } - } catch (e) { - err = e - } finally { - next(err) - } -} -CipherBase.prototype._flush = function (done) { - var err - try { - this.push(this.__final()) - } catch (e) { - err = e - } - - done(err) -} -CipherBase.prototype._finalOrDigest = function (outputEnc) { - var outData = this.__final() || Buffer.alloc(0) - if (outputEnc) { - outData = this._toString(outData, outputEnc, true) - } - return outData -} - -CipherBase.prototype._toString = function (value, enc, fin) { - if (!this._decoder) { - this._decoder = new StringDecoder(enc) - this._encoding = enc - } - - if (this._encoding !== enc) throw new Error('can\'t switch encodings') - - var out = this._decoder.write(value) - if (fin) { - out += this._decoder.end() - } - - return out -} - -module.exports = CipherBase - -},{"inherits":396,"safe-buffer":742,"stream":808,"string_decoder":809}],156:[function(require,module,exports){ -require('../modules/es6.object.to-string'); -require('../modules/es6.string.iterator'); -require('../modules/web.dom.iterable'); -require('../modules/es6.map'); -module.exports = require('../modules/_core').Map; - -},{"../modules/_core":169,"../modules/es6.map":219,"../modules/es6.object.to-string":220,"../modules/es6.string.iterator":221,"../modules/web.dom.iterable":222}],157:[function(require,module,exports){ -module.exports = function (it) { - if (typeof it != 'function') throw TypeError(it + ' is not a function!'); - return it; -}; - -},{}],158:[function(require,module,exports){ -module.exports = function () { /* empty */ }; - -},{}],159:[function(require,module,exports){ -module.exports = function (it, Constructor, name, forbiddenField) { - if (!(it instanceof Constructor) || (forbiddenField !== undefined && forbiddenField in it)) { - throw TypeError(name + ': incorrect invocation!'); - } return it; -}; - -},{}],160:[function(require,module,exports){ -var isObject = require('./_is-object'); -module.exports = function (it) { - if (!isObject(it)) throw TypeError(it + ' is not an object!'); - return it; -}; - -},{"./_is-object":186}],161:[function(require,module,exports){ -// false -> Array#indexOf -// true -> Array#includes -var toIObject = require('./_to-iobject'); -var toLength = require('./_to-length'); -var toAbsoluteIndex = require('./_to-absolute-index'); -module.exports = function (IS_INCLUDES) { - return function ($this, el, fromIndex) { - var O = toIObject($this); - var length = toLength(O.length); - var index = toAbsoluteIndex(fromIndex, length); - var value; - // Array#includes uses SameValueZero equality algorithm - // eslint-disable-next-line no-self-compare - if (IS_INCLUDES && el != el) while (length > index) { - value = O[index++]; - // eslint-disable-next-line no-self-compare - if (value != value) return true; - // Array#indexOf ignores holes, Array#includes - not - } else for (;length > index; index++) if (IS_INCLUDES || index in O) { - if (O[index] === el) return IS_INCLUDES || index || 0; - } return !IS_INCLUDES && -1; - }; -}; - -},{"./_to-absolute-index":208,"./_to-iobject":210,"./_to-length":211}],162:[function(require,module,exports){ -// 0 -> Array#forEach -// 1 -> Array#map -// 2 -> Array#filter -// 3 -> Array#some -// 4 -> Array#every -// 5 -> Array#find -// 6 -> Array#findIndex -var ctx = require('./_ctx'); -var IObject = require('./_iobject'); -var toObject = require('./_to-object'); -var toLength = require('./_to-length'); -var asc = require('./_array-species-create'); -module.exports = function (TYPE, $create) { - var IS_MAP = TYPE == 1; - var IS_FILTER = TYPE == 2; - var IS_SOME = TYPE == 3; - var IS_EVERY = TYPE == 4; - var IS_FIND_INDEX = TYPE == 6; - var NO_HOLES = TYPE == 5 || IS_FIND_INDEX; - var create = $create || asc; - return function ($this, callbackfn, that) { - var O = toObject($this); - var self = IObject(O); - var f = ctx(callbackfn, that, 3); - var length = toLength(self.length); - var index = 0; - var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined; - var val, res; - for (;length > index; index++) if (NO_HOLES || index in self) { - val = self[index]; - res = f(val, index, O); - if (TYPE) { - if (IS_MAP) result[index] = res; // map - else if (res) switch (TYPE) { - case 3: return true; // some - case 5: return val; // find - case 6: return index; // findIndex - case 2: result.push(val); // filter - } else if (IS_EVERY) return false; // every - } - } - return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result; - }; -}; - -},{"./_array-species-create":164,"./_ctx":170,"./_iobject":183,"./_to-length":211,"./_to-object":212}],163:[function(require,module,exports){ -var isObject = require('./_is-object'); -var isArray = require('./_is-array'); -var SPECIES = require('./_wks')('species'); - -module.exports = function (original) { - var C; - if (isArray(original)) { - C = original.constructor; - // cross-realm fallback - if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined; - if (isObject(C)) { - C = C[SPECIES]; - if (C === null) C = undefined; - } - } return C === undefined ? Array : C; -}; - -},{"./_is-array":185,"./_is-object":186,"./_wks":216}],164:[function(require,module,exports){ -// 9.4.2.3 ArraySpeciesCreate(originalArray, length) -var speciesConstructor = require('./_array-species-constructor'); - -module.exports = function (original, length) { - return new (speciesConstructor(original))(length); -}; - -},{"./_array-species-constructor":163}],165:[function(require,module,exports){ -// getting tag from 19.1.3.6 Object.prototype.toString() -var cof = require('./_cof'); -var TAG = require('./_wks')('toStringTag'); -// ES3 wrong here -var ARG = cof(function () { return arguments; }()) == 'Arguments'; - -// fallback for IE11 Script Access Denied error -var tryGet = function (it, key) { - try { - return it[key]; - } catch (e) { /* empty */ } -}; - -module.exports = function (it) { - var O, T, B; - return it === undefined ? 'Undefined' : it === null ? 'Null' - // @@toStringTag case - : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T - // builtinTag case - : ARG ? cof(O) - // ES3 arguments fallback - : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B; -}; - -},{"./_cof":166,"./_wks":216}],166:[function(require,module,exports){ -var toString = {}.toString; - -module.exports = function (it) { - return toString.call(it).slice(8, -1); -}; - -},{}],167:[function(require,module,exports){ -'use strict'; -var dP = require('./_object-dp').f; -var create = require('./_object-create'); -var redefineAll = require('./_redefine-all'); -var ctx = require('./_ctx'); -var anInstance = require('./_an-instance'); -var forOf = require('./_for-of'); -var $iterDefine = require('./_iter-define'); -var step = require('./_iter-step'); -var setSpecies = require('./_set-species'); -var DESCRIPTORS = require('./_descriptors'); -var fastKey = require('./_meta').fastKey; -var validate = require('./_validate-collection'); -var SIZE = DESCRIPTORS ? '_s' : 'size'; - -var getEntry = function (that, key) { - // fast case - var index = fastKey(key); - var entry; - if (index !== 'F') return that._i[index]; - // frozen object case - for (entry = that._f; entry; entry = entry.n) { - if (entry.k == key) return entry; - } -}; - -module.exports = { - getConstructor: function (wrapper, NAME, IS_MAP, ADDER) { - var C = wrapper(function (that, iterable) { - anInstance(that, C, NAME, '_i'); - that._t = NAME; // collection type - that._i = create(null); // index - that._f = undefined; // first entry - that._l = undefined; // last entry - that[SIZE] = 0; // size - if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that); - }); - redefineAll(C.prototype, { - // 23.1.3.1 Map.prototype.clear() - // 23.2.3.2 Set.prototype.clear() - clear: function clear() { - for (var that = validate(this, NAME), data = that._i, entry = that._f; entry; entry = entry.n) { - entry.r = true; - if (entry.p) entry.p = entry.p.n = undefined; - delete data[entry.i]; - } - that._f = that._l = undefined; - that[SIZE] = 0; - }, - // 23.1.3.3 Map.prototype.delete(key) - // 23.2.3.4 Set.prototype.delete(value) - 'delete': function (key) { - var that = validate(this, NAME); - var entry = getEntry(that, key); - if (entry) { - var next = entry.n; - var prev = entry.p; - delete that._i[entry.i]; - entry.r = true; - if (prev) prev.n = next; - if (next) next.p = prev; - if (that._f == entry) that._f = next; - if (that._l == entry) that._l = prev; - that[SIZE]--; - } return !!entry; - }, - // 23.2.3.6 Set.prototype.forEach(callbackfn, thisArg = undefined) - // 23.1.3.5 Map.prototype.forEach(callbackfn, thisArg = undefined) - forEach: function forEach(callbackfn /* , that = undefined */) { - validate(this, NAME); - var f = ctx(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3); - var entry; - while (entry = entry ? entry.n : this._f) { - f(entry.v, entry.k, this); - // revert to the last existing entry - while (entry && entry.r) entry = entry.p; - } - }, - // 23.1.3.7 Map.prototype.has(key) - // 23.2.3.7 Set.prototype.has(value) - has: function has(key) { - return !!getEntry(validate(this, NAME), key); - } - }); - if (DESCRIPTORS) dP(C.prototype, 'size', { - get: function () { - return validate(this, NAME)[SIZE]; - } - }); - return C; - }, - def: function (that, key, value) { - var entry = getEntry(that, key); - var prev, index; - // change existing entry - if (entry) { - entry.v = value; - // create new entry - } else { - that._l = entry = { - i: index = fastKey(key, true), // <- index - k: key, // <- key - v: value, // <- value - p: prev = that._l, // <- previous entry - n: undefined, // <- next entry - r: false // <- removed - }; - if (!that._f) that._f = entry; - if (prev) prev.n = entry; - that[SIZE]++; - // add to index - if (index !== 'F') that._i[index] = entry; - } return that; - }, - getEntry: getEntry, - setStrong: function (C, NAME, IS_MAP) { - // add .keys, .values, .entries, [@@iterator] - // 23.1.3.4, 23.1.3.8, 23.1.3.11, 23.1.3.12, 23.2.3.5, 23.2.3.8, 23.2.3.10, 23.2.3.11 - $iterDefine(C, NAME, function (iterated, kind) { - this._t = validate(iterated, NAME); // target - this._k = kind; // kind - this._l = undefined; // previous - }, function () { - var that = this; - var kind = that._k; - var entry = that._l; - // revert to the last existing entry - while (entry && entry.r) entry = entry.p; - // get next entry - if (!that._t || !(that._l = entry = entry ? entry.n : that._t._f)) { - // or finish the iteration - that._t = undefined; - return step(1); - } - // return step by kind - if (kind == 'keys') return step(0, entry.k); - if (kind == 'values') return step(0, entry.v); - return step(0, [entry.k, entry.v]); - }, IS_MAP ? 'entries' : 'values', !IS_MAP, true); - - // add [@@species], 23.1.2.2, 23.2.2.2 - setSpecies(NAME); - } -}; - -},{"./_an-instance":159,"./_ctx":170,"./_descriptors":172,"./_for-of":177,"./_iter-define":189,"./_iter-step":190,"./_meta":193,"./_object-create":194,"./_object-dp":195,"./_redefine-all":201,"./_set-species":203,"./_validate-collection":215}],168:[function(require,module,exports){ -'use strict'; -var global = require('./_global'); -var $export = require('./_export'); -var meta = require('./_meta'); -var fails = require('./_fails'); -var hide = require('./_hide'); -var redefineAll = require('./_redefine-all'); -var forOf = require('./_for-of'); -var anInstance = require('./_an-instance'); -var isObject = require('./_is-object'); -var setToStringTag = require('./_set-to-string-tag'); -var dP = require('./_object-dp').f; -var each = require('./_array-methods')(0); -var DESCRIPTORS = require('./_descriptors'); - -module.exports = function (NAME, wrapper, methods, common, IS_MAP, IS_WEAK) { - var Base = global[NAME]; - var C = Base; - var ADDER = IS_MAP ? 'set' : 'add'; - var proto = C && C.prototype; - var O = {}; - if (!DESCRIPTORS || typeof C != 'function' || !(IS_WEAK || proto.forEach && !fails(function () { - new C().entries().next(); - }))) { - // create collection constructor - C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER); - redefineAll(C.prototype, methods); - meta.NEED = true; - } else { - C = wrapper(function (target, iterable) { - anInstance(target, C, NAME, '_c'); - target._c = new Base(); - if (iterable != undefined) forOf(iterable, IS_MAP, target[ADDER], target); - }); - each('add,clear,delete,forEach,get,has,set,keys,values,entries,toJSON'.split(','), function (KEY) { - var IS_ADDER = KEY == 'add' || KEY == 'set'; - if (KEY in proto && !(IS_WEAK && KEY == 'clear')) hide(C.prototype, KEY, function (a, b) { - anInstance(this, C, KEY); - if (!IS_ADDER && IS_WEAK && !isObject(a)) return KEY == 'get' ? undefined : false; - var result = this._c[KEY](a === 0 ? 0 : a, b); - return IS_ADDER ? this : result; - }); - }); - IS_WEAK || dP(C.prototype, 'size', { - get: function () { - return this._c.size; - } - }); - } - - setToStringTag(C, NAME); - - O[NAME] = C; - $export($export.G + $export.W + $export.F, O); - - if (!IS_WEAK) common.setStrong(C, NAME, IS_MAP); - - return C; -}; - -},{"./_an-instance":159,"./_array-methods":162,"./_descriptors":172,"./_export":175,"./_fails":176,"./_for-of":177,"./_global":178,"./_hide":180,"./_is-object":186,"./_meta":193,"./_object-dp":195,"./_redefine-all":201,"./_set-to-string-tag":204}],169:[function(require,module,exports){ -var core = module.exports = { version: '2.6.11' }; -if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef - -},{}],170:[function(require,module,exports){ -// optional / simple context binding -var aFunction = require('./_a-function'); -module.exports = function (fn, that, length) { - aFunction(fn); - if (that === undefined) return fn; - switch (length) { - case 1: return function (a) { - return fn.call(that, a); - }; - case 2: return function (a, b) { - return fn.call(that, a, b); - }; - case 3: return function (a, b, c) { - return fn.call(that, a, b, c); - }; - } - return function (/* ...args */) { - return fn.apply(that, arguments); - }; -}; - -},{"./_a-function":157}],171:[function(require,module,exports){ -// 7.2.1 RequireObjectCoercible(argument) -module.exports = function (it) { - if (it == undefined) throw TypeError("Can't call method on " + it); - return it; -}; - -},{}],172:[function(require,module,exports){ -// Thank's IE8 for his funny defineProperty -module.exports = !require('./_fails')(function () { - return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7; -}); - -},{"./_fails":176}],173:[function(require,module,exports){ -var isObject = require('./_is-object'); -var document = require('./_global').document; -// typeof document.createElement is 'object' in old IE -var is = isObject(document) && isObject(document.createElement); -module.exports = function (it) { - return is ? document.createElement(it) : {}; -}; - -},{"./_global":178,"./_is-object":186}],174:[function(require,module,exports){ -// IE 8- don't enum bug keys -module.exports = ( - 'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf' -).split(','); - -},{}],175:[function(require,module,exports){ -var global = require('./_global'); -var core = require('./_core'); -var ctx = require('./_ctx'); -var hide = require('./_hide'); -var has = require('./_has'); -var PROTOTYPE = 'prototype'; - -var $export = function (type, name, source) { - var IS_FORCED = type & $export.F; - var IS_GLOBAL = type & $export.G; - var IS_STATIC = type & $export.S; - var IS_PROTO = type & $export.P; - var IS_BIND = type & $export.B; - var IS_WRAP = type & $export.W; - var exports = IS_GLOBAL ? core : core[name] || (core[name] = {}); - var expProto = exports[PROTOTYPE]; - var target = IS_GLOBAL ? global : IS_STATIC ? global[name] : (global[name] || {})[PROTOTYPE]; - var key, own, out; - if (IS_GLOBAL) source = name; - for (key in source) { - // contains in native - own = !IS_FORCED && target && target[key] !== undefined; - if (own && has(exports, key)) continue; - // export native or passed - out = own ? target[key] : source[key]; - // prevent global pollution for namespaces - exports[key] = IS_GLOBAL && typeof target[key] != 'function' ? source[key] - // bind timers to global for call from export context - : IS_BIND && own ? ctx(out, global) - // wrap global constructors for prevent change them in library - : IS_WRAP && target[key] == out ? (function (C) { - var F = function (a, b, c) { - if (this instanceof C) { - switch (arguments.length) { - case 0: return new C(); - case 1: return new C(a); - case 2: return new C(a, b); - } return new C(a, b, c); - } return C.apply(this, arguments); - }; - F[PROTOTYPE] = C[PROTOTYPE]; - return F; - // make static versions for prototype methods - })(out) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out; - // export proto methods to core.%CONSTRUCTOR%.methods.%NAME% - if (IS_PROTO) { - (exports.virtual || (exports.virtual = {}))[key] = out; - // export proto methods to core.%CONSTRUCTOR%.prototype.%NAME% - if (type & $export.R && expProto && !expProto[key]) hide(expProto, key, out); - } - } -}; -// type bitmap -$export.F = 1; // forced -$export.G = 2; // global -$export.S = 4; // static -$export.P = 8; // proto -$export.B = 16; // bind -$export.W = 32; // wrap -$export.U = 64; // safe -$export.R = 128; // real proto method for `library` -module.exports = $export; - -},{"./_core":169,"./_ctx":170,"./_global":178,"./_has":179,"./_hide":180}],176:[function(require,module,exports){ -module.exports = function (exec) { - try { - return !!exec(); - } catch (e) { - return true; - } -}; - -},{}],177:[function(require,module,exports){ -var ctx = require('./_ctx'); -var call = require('./_iter-call'); -var isArrayIter = require('./_is-array-iter'); -var anObject = require('./_an-object'); -var toLength = require('./_to-length'); -var getIterFn = require('./core.get-iterator-method'); -var BREAK = {}; -var RETURN = {}; -var exports = module.exports = function (iterable, entries, fn, that, ITERATOR) { - var iterFn = ITERATOR ? function () { return iterable; } : getIterFn(iterable); - var f = ctx(fn, that, entries ? 2 : 1); - var index = 0; - var length, step, iterator, result; - if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!'); - // fast case for arrays with default iterator - if (isArrayIter(iterFn)) for (length = toLength(iterable.length); length > index; index++) { - result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]); - if (result === BREAK || result === RETURN) return result; - } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) { - result = call(iterator, f, step.value, entries); - if (result === BREAK || result === RETURN) return result; - } -}; -exports.BREAK = BREAK; -exports.RETURN = RETURN; - -},{"./_an-object":160,"./_ctx":170,"./_is-array-iter":184,"./_iter-call":187,"./_to-length":211,"./core.get-iterator-method":217}],178:[function(require,module,exports){ -// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028 -var global = module.exports = typeof window != 'undefined' && window.Math == Math - ? window : typeof self != 'undefined' && self.Math == Math ? self - // eslint-disable-next-line no-new-func - : Function('return this')(); -if (typeof __g == 'number') __g = global; // eslint-disable-line no-undef - -},{}],179:[function(require,module,exports){ -var hasOwnProperty = {}.hasOwnProperty; -module.exports = function (it, key) { - return hasOwnProperty.call(it, key); -}; - -},{}],180:[function(require,module,exports){ -var dP = require('./_object-dp'); -var createDesc = require('./_property-desc'); -module.exports = require('./_descriptors') ? function (object, key, value) { - return dP.f(object, key, createDesc(1, value)); -} : function (object, key, value) { - object[key] = value; - return object; -}; - -},{"./_descriptors":172,"./_object-dp":195,"./_property-desc":200}],181:[function(require,module,exports){ -var document = require('./_global').document; -module.exports = document && document.documentElement; - -},{"./_global":178}],182:[function(require,module,exports){ -module.exports = !require('./_descriptors') && !require('./_fails')(function () { - return Object.defineProperty(require('./_dom-create')('div'), 'a', { get: function () { return 7; } }).a != 7; -}); - -},{"./_descriptors":172,"./_dom-create":173,"./_fails":176}],183:[function(require,module,exports){ -// fallback for non-array-like ES3 and non-enumerable old V8 strings -var cof = require('./_cof'); -// eslint-disable-next-line no-prototype-builtins -module.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) { - return cof(it) == 'String' ? it.split('') : Object(it); -}; - -},{"./_cof":166}],184:[function(require,module,exports){ -// check on default Array iterator -var Iterators = require('./_iterators'); -var ITERATOR = require('./_wks')('iterator'); -var ArrayProto = Array.prototype; - -module.exports = function (it) { - return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it); -}; - -},{"./_iterators":191,"./_wks":216}],185:[function(require,module,exports){ -// 7.2.2 IsArray(argument) -var cof = require('./_cof'); -module.exports = Array.isArray || function isArray(arg) { - return cof(arg) == 'Array'; -}; - -},{"./_cof":166}],186:[function(require,module,exports){ -module.exports = function (it) { - return typeof it === 'object' ? it !== null : typeof it === 'function'; -}; - -},{}],187:[function(require,module,exports){ -// call something on iterator step with safe closing on error -var anObject = require('./_an-object'); -module.exports = function (iterator, fn, value, entries) { - try { - return entries ? fn(anObject(value)[0], value[1]) : fn(value); - // 7.4.6 IteratorClose(iterator, completion) - } catch (e) { - var ret = iterator['return']; - if (ret !== undefined) anObject(ret.call(iterator)); - throw e; - } -}; - -},{"./_an-object":160}],188:[function(require,module,exports){ -'use strict'; -var create = require('./_object-create'); -var descriptor = require('./_property-desc'); -var setToStringTag = require('./_set-to-string-tag'); -var IteratorPrototype = {}; - -// 25.1.2.1.1 %IteratorPrototype%[@@iterator]() -require('./_hide')(IteratorPrototype, require('./_wks')('iterator'), function () { return this; }); - -module.exports = function (Constructor, NAME, next) { - Constructor.prototype = create(IteratorPrototype, { next: descriptor(1, next) }); - setToStringTag(Constructor, NAME + ' Iterator'); -}; - -},{"./_hide":180,"./_object-create":194,"./_property-desc":200,"./_set-to-string-tag":204,"./_wks":216}],189:[function(require,module,exports){ -'use strict'; -var LIBRARY = require('./_library'); -var $export = require('./_export'); -var redefine = require('./_redefine'); -var hide = require('./_hide'); -var Iterators = require('./_iterators'); -var $iterCreate = require('./_iter-create'); -var setToStringTag = require('./_set-to-string-tag'); -var getPrototypeOf = require('./_object-gpo'); -var ITERATOR = require('./_wks')('iterator'); -var BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next` -var FF_ITERATOR = '@@iterator'; -var KEYS = 'keys'; -var VALUES = 'values'; - -var returnThis = function () { return this; }; - -module.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) { - $iterCreate(Constructor, NAME, next); - var getMethod = function (kind) { - if (!BUGGY && kind in proto) return proto[kind]; - switch (kind) { - case KEYS: return function keys() { return new Constructor(this, kind); }; - case VALUES: return function values() { return new Constructor(this, kind); }; - } return function entries() { return new Constructor(this, kind); }; - }; - var TAG = NAME + ' Iterator'; - var DEF_VALUES = DEFAULT == VALUES; - var VALUES_BUG = false; - var proto = Base.prototype; - var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT]; - var $default = $native || getMethod(DEFAULT); - var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined; - var $anyNative = NAME == 'Array' ? proto.entries || $native : $native; - var methods, key, IteratorPrototype; - // Fix native - if ($anyNative) { - IteratorPrototype = getPrototypeOf($anyNative.call(new Base())); - if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) { - // Set @@toStringTag to native iterators - setToStringTag(IteratorPrototype, TAG, true); - // fix for some old engines - if (!LIBRARY && typeof IteratorPrototype[ITERATOR] != 'function') hide(IteratorPrototype, ITERATOR, returnThis); - } - } - // fix Array#{values, @@iterator}.name in V8 / FF - if (DEF_VALUES && $native && $native.name !== VALUES) { - VALUES_BUG = true; - $default = function values() { return $native.call(this); }; - } - // Define iterator - if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) { - hide(proto, ITERATOR, $default); - } - // Plug for library - Iterators[NAME] = $default; - Iterators[TAG] = returnThis; - if (DEFAULT) { - methods = { - values: DEF_VALUES ? $default : getMethod(VALUES), - keys: IS_SET ? $default : getMethod(KEYS), - entries: $entries - }; - if (FORCED) for (key in methods) { - if (!(key in proto)) redefine(proto, key, methods[key]); - } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods); - } - return methods; -}; - -},{"./_export":175,"./_hide":180,"./_iter-create":188,"./_iterators":191,"./_library":192,"./_object-gpo":197,"./_redefine":202,"./_set-to-string-tag":204,"./_wks":216}],190:[function(require,module,exports){ -module.exports = function (done, value) { - return { value: value, done: !!done }; -}; - -},{}],191:[function(require,module,exports){ -module.exports = {}; - -},{}],192:[function(require,module,exports){ -module.exports = true; - -},{}],193:[function(require,module,exports){ -var META = require('./_uid')('meta'); -var isObject = require('./_is-object'); -var has = require('./_has'); -var setDesc = require('./_object-dp').f; -var id = 0; -var isExtensible = Object.isExtensible || function () { - return true; -}; -var FREEZE = !require('./_fails')(function () { - return isExtensible(Object.preventExtensions({})); -}); -var setMeta = function (it) { - setDesc(it, META, { value: { - i: 'O' + ++id, // object ID - w: {} // weak collections IDs - } }); -}; -var fastKey = function (it, create) { - // return primitive with prefix - if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it; - if (!has(it, META)) { - // can't set metadata to uncaught frozen object - if (!isExtensible(it)) return 'F'; - // not necessary to add metadata - if (!create) return 'E'; - // add missing metadata - setMeta(it); - // return object ID - } return it[META].i; -}; -var getWeak = function (it, create) { - if (!has(it, META)) { - // can't set metadata to uncaught frozen object - if (!isExtensible(it)) return true; - // not necessary to add metadata - if (!create) return false; - // add missing metadata - setMeta(it); - // return hash weak collections IDs - } return it[META].w; -}; -// add metadata on freeze-family methods calling -var onFreeze = function (it) { - if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it); - return it; -}; -var meta = module.exports = { - KEY: META, - NEED: false, - fastKey: fastKey, - getWeak: getWeak, - onFreeze: onFreeze -}; - -},{"./_fails":176,"./_has":179,"./_is-object":186,"./_object-dp":195,"./_uid":214}],194:[function(require,module,exports){ -// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties]) -var anObject = require('./_an-object'); -var dPs = require('./_object-dps'); -var enumBugKeys = require('./_enum-bug-keys'); -var IE_PROTO = require('./_shared-key')('IE_PROTO'); -var Empty = function () { /* empty */ }; -var PROTOTYPE = 'prototype'; - -// Create object with fake `null` prototype: use iframe Object with cleared prototype -var createDict = function () { - // Thrash, waste and sodomy: IE GC bug - var iframe = require('./_dom-create')('iframe'); - var i = enumBugKeys.length; - var lt = '<'; - var gt = '>'; - var iframeDocument; - iframe.style.display = 'none'; - require('./_html').appendChild(iframe); - iframe.src = 'javascript:'; // eslint-disable-line no-script-url - // createDict = iframe.contentWindow.Object; - // html.removeChild(iframe); - iframeDocument = iframe.contentWindow.document; - iframeDocument.open(); - iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt); - iframeDocument.close(); - createDict = iframeDocument.F; - while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]]; - return createDict(); -}; - -module.exports = Object.create || function create(O, Properties) { - var result; - if (O !== null) { - Empty[PROTOTYPE] = anObject(O); - result = new Empty(); - Empty[PROTOTYPE] = null; - // add "__proto__" for Object.getPrototypeOf polyfill - result[IE_PROTO] = O; - } else result = createDict(); - return Properties === undefined ? result : dPs(result, Properties); -}; - -},{"./_an-object":160,"./_dom-create":173,"./_enum-bug-keys":174,"./_html":181,"./_object-dps":196,"./_shared-key":205}],195:[function(require,module,exports){ -var anObject = require('./_an-object'); -var IE8_DOM_DEFINE = require('./_ie8-dom-define'); -var toPrimitive = require('./_to-primitive'); -var dP = Object.defineProperty; - -exports.f = require('./_descriptors') ? Object.defineProperty : function defineProperty(O, P, Attributes) { - anObject(O); - P = toPrimitive(P, true); - anObject(Attributes); - if (IE8_DOM_DEFINE) try { - return dP(O, P, Attributes); - } catch (e) { /* empty */ } - if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!'); - if ('value' in Attributes) O[P] = Attributes.value; - return O; -}; - -},{"./_an-object":160,"./_descriptors":172,"./_ie8-dom-define":182,"./_to-primitive":213}],196:[function(require,module,exports){ -var dP = require('./_object-dp'); -var anObject = require('./_an-object'); -var getKeys = require('./_object-keys'); - -module.exports = require('./_descriptors') ? Object.defineProperties : function defineProperties(O, Properties) { - anObject(O); - var keys = getKeys(Properties); - var length = keys.length; - var i = 0; - var P; - while (length > i) dP.f(O, P = keys[i++], Properties[P]); - return O; -}; - -},{"./_an-object":160,"./_descriptors":172,"./_object-dp":195,"./_object-keys":199}],197:[function(require,module,exports){ -// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O) -var has = require('./_has'); -var toObject = require('./_to-object'); -var IE_PROTO = require('./_shared-key')('IE_PROTO'); -var ObjectProto = Object.prototype; - -module.exports = Object.getPrototypeOf || function (O) { - O = toObject(O); - if (has(O, IE_PROTO)) return O[IE_PROTO]; - if (typeof O.constructor == 'function' && O instanceof O.constructor) { - return O.constructor.prototype; - } return O instanceof Object ? ObjectProto : null; -}; - -},{"./_has":179,"./_shared-key":205,"./_to-object":212}],198:[function(require,module,exports){ -var has = require('./_has'); -var toIObject = require('./_to-iobject'); -var arrayIndexOf = require('./_array-includes')(false); -var IE_PROTO = require('./_shared-key')('IE_PROTO'); - -module.exports = function (object, names) { - var O = toIObject(object); - var i = 0; - var result = []; - var key; - for (key in O) if (key != IE_PROTO) has(O, key) && result.push(key); - // Don't enum bug & hidden keys - while (names.length > i) if (has(O, key = names[i++])) { - ~arrayIndexOf(result, key) || result.push(key); - } - return result; -}; - -},{"./_array-includes":161,"./_has":179,"./_shared-key":205,"./_to-iobject":210}],199:[function(require,module,exports){ -// 19.1.2.14 / 15.2.3.14 Object.keys(O) -var $keys = require('./_object-keys-internal'); -var enumBugKeys = require('./_enum-bug-keys'); - -module.exports = Object.keys || function keys(O) { - return $keys(O, enumBugKeys); -}; - -},{"./_enum-bug-keys":174,"./_object-keys-internal":198}],200:[function(require,module,exports){ -module.exports = function (bitmap, value) { - return { - enumerable: !(bitmap & 1), - configurable: !(bitmap & 2), - writable: !(bitmap & 4), - value: value - }; -}; - -},{}],201:[function(require,module,exports){ -var hide = require('./_hide'); -module.exports = function (target, src, safe) { - for (var key in src) { - if (safe && target[key]) target[key] = src[key]; - else hide(target, key, src[key]); - } return target; -}; - -},{"./_hide":180}],202:[function(require,module,exports){ -module.exports = require('./_hide'); - -},{"./_hide":180}],203:[function(require,module,exports){ -'use strict'; -var global = require('./_global'); -var core = require('./_core'); -var dP = require('./_object-dp'); -var DESCRIPTORS = require('./_descriptors'); -var SPECIES = require('./_wks')('species'); - -module.exports = function (KEY) { - var C = typeof core[KEY] == 'function' ? core[KEY] : global[KEY]; - if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, { - configurable: true, - get: function () { return this; } - }); -}; - -},{"./_core":169,"./_descriptors":172,"./_global":178,"./_object-dp":195,"./_wks":216}],204:[function(require,module,exports){ -var def = require('./_object-dp').f; -var has = require('./_has'); -var TAG = require('./_wks')('toStringTag'); - -module.exports = function (it, tag, stat) { - if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { configurable: true, value: tag }); -}; - -},{"./_has":179,"./_object-dp":195,"./_wks":216}],205:[function(require,module,exports){ -var shared = require('./_shared')('keys'); -var uid = require('./_uid'); -module.exports = function (key) { - return shared[key] || (shared[key] = uid(key)); -}; - -},{"./_shared":206,"./_uid":214}],206:[function(require,module,exports){ -var core = require('./_core'); -var global = require('./_global'); -var SHARED = '__core-js_shared__'; -var store = global[SHARED] || (global[SHARED] = {}); - -(module.exports = function (key, value) { - return store[key] || (store[key] = value !== undefined ? value : {}); -})('versions', []).push({ - version: core.version, - mode: require('./_library') ? 'pure' : 'global', - copyright: '© 2019 Denis Pushkarev (zloirock.ru)' -}); - -},{"./_core":169,"./_global":178,"./_library":192}],207:[function(require,module,exports){ -var toInteger = require('./_to-integer'); -var defined = require('./_defined'); -// true -> String#at -// false -> String#codePointAt -module.exports = function (TO_STRING) { - return function (that, pos) { - var s = String(defined(that)); - var i = toInteger(pos); - var l = s.length; - var a, b; - if (i < 0 || i >= l) return TO_STRING ? '' : undefined; - a = s.charCodeAt(i); - return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff - ? TO_STRING ? s.charAt(i) : a - : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000; - }; -}; - -},{"./_defined":171,"./_to-integer":209}],208:[function(require,module,exports){ -var toInteger = require('./_to-integer'); -var max = Math.max; -var min = Math.min; -module.exports = function (index, length) { - index = toInteger(index); - return index < 0 ? max(index + length, 0) : min(index, length); -}; - -},{"./_to-integer":209}],209:[function(require,module,exports){ -// 7.1.4 ToInteger -var ceil = Math.ceil; -var floor = Math.floor; -module.exports = function (it) { - return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it); -}; - -},{}],210:[function(require,module,exports){ -// to indexed object, toObject with fallback for non-array-like ES3 strings -var IObject = require('./_iobject'); -var defined = require('./_defined'); -module.exports = function (it) { - return IObject(defined(it)); -}; - -},{"./_defined":171,"./_iobject":183}],211:[function(require,module,exports){ -// 7.1.15 ToLength -var toInteger = require('./_to-integer'); -var min = Math.min; -module.exports = function (it) { - return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991 -}; - -},{"./_to-integer":209}],212:[function(require,module,exports){ -// 7.1.13 ToObject(argument) -var defined = require('./_defined'); -module.exports = function (it) { - return Object(defined(it)); -}; - -},{"./_defined":171}],213:[function(require,module,exports){ -// 7.1.1 ToPrimitive(input [, PreferredType]) -var isObject = require('./_is-object'); -// instead of the ES6 spec version, we didn't implement @@toPrimitive case -// and the second argument - flag - preferred type is a string -module.exports = function (it, S) { - if (!isObject(it)) return it; - var fn, val; - if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val; - if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val; - if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val; - throw TypeError("Can't convert object to primitive value"); -}; - -},{"./_is-object":186}],214:[function(require,module,exports){ -var id = 0; -var px = Math.random(); -module.exports = function (key) { - return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36)); -}; - -},{}],215:[function(require,module,exports){ -var isObject = require('./_is-object'); -module.exports = function (it, TYPE) { - if (!isObject(it) || it._t !== TYPE) throw TypeError('Incompatible receiver, ' + TYPE + ' required!'); - return it; -}; - -},{"./_is-object":186}],216:[function(require,module,exports){ -var store = require('./_shared')('wks'); -var uid = require('./_uid'); -var Symbol = require('./_global').Symbol; -var USE_SYMBOL = typeof Symbol == 'function'; - -var $exports = module.exports = function (name) { - return store[name] || (store[name] = - USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : uid)('Symbol.' + name)); -}; - -$exports.store = store; - -},{"./_global":178,"./_shared":206,"./_uid":214}],217:[function(require,module,exports){ -var classof = require('./_classof'); -var ITERATOR = require('./_wks')('iterator'); -var Iterators = require('./_iterators'); -module.exports = require('./_core').getIteratorMethod = function (it) { - if (it != undefined) return it[ITERATOR] - || it['@@iterator'] - || Iterators[classof(it)]; -}; - -},{"./_classof":165,"./_core":169,"./_iterators":191,"./_wks":216}],218:[function(require,module,exports){ -'use strict'; -var addToUnscopables = require('./_add-to-unscopables'); -var step = require('./_iter-step'); -var Iterators = require('./_iterators'); -var toIObject = require('./_to-iobject'); - -// 22.1.3.4 Array.prototype.entries() -// 22.1.3.13 Array.prototype.keys() -// 22.1.3.29 Array.prototype.values() -// 22.1.3.30 Array.prototype[@@iterator]() -module.exports = require('./_iter-define')(Array, 'Array', function (iterated, kind) { - this._t = toIObject(iterated); // target - this._i = 0; // next index - this._k = kind; // kind -// 22.1.5.2.1 %ArrayIteratorPrototype%.next() -}, function () { - var O = this._t; - var kind = this._k; - var index = this._i++; - if (!O || index >= O.length) { - this._t = undefined; - return step(1); - } - if (kind == 'keys') return step(0, index); - if (kind == 'values') return step(0, O[index]); - return step(0, [index, O[index]]); -}, 'values'); - -// argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7) -Iterators.Arguments = Iterators.Array; - -addToUnscopables('keys'); -addToUnscopables('values'); -addToUnscopables('entries'); - -},{"./_add-to-unscopables":158,"./_iter-define":189,"./_iter-step":190,"./_iterators":191,"./_to-iobject":210}],219:[function(require,module,exports){ -'use strict'; -var strong = require('./_collection-strong'); -var validate = require('./_validate-collection'); -var MAP = 'Map'; - -// 23.1 Map Objects -module.exports = require('./_collection')(MAP, function (get) { - return function Map() { return get(this, arguments.length > 0 ? arguments[0] : undefined); }; -}, { - // 23.1.3.6 Map.prototype.get(key) - get: function get(key) { - var entry = strong.getEntry(validate(this, MAP), key); - return entry && entry.v; - }, - // 23.1.3.9 Map.prototype.set(key, value) - set: function set(key, value) { - return strong.def(validate(this, MAP), key === 0 ? 0 : key, value); - } -}, strong, true); - -},{"./_collection":168,"./_collection-strong":167,"./_validate-collection":215}],220:[function(require,module,exports){ -arguments[4][110][0].apply(exports,arguments) -},{"dup":110}],221:[function(require,module,exports){ -'use strict'; -var $at = require('./_string-at')(true); - -// 21.1.3.27 String.prototype[@@iterator]() -require('./_iter-define')(String, 'String', function (iterated) { - this._t = String(iterated); // target - this._i = 0; // next index -// 21.1.5.2.1 %StringIteratorPrototype%.next() -}, function () { - var O = this._t; - var index = this._i; - var point; - if (index >= O.length) return { value: undefined, done: true }; - point = $at(O, index); - this._i += point.length; - return { value: point, done: false }; -}); - -},{"./_iter-define":189,"./_string-at":207}],222:[function(require,module,exports){ -require('./es6.array.iterator'); -var global = require('./_global'); -var hide = require('./_hide'); -var Iterators = require('./_iterators'); -var TO_STRING_TAG = require('./_wks')('toStringTag'); - -var DOMIterables = ('CSSRuleList,CSSStyleDeclaration,CSSValueList,ClientRectList,DOMRectList,DOMStringList,' + - 'DOMTokenList,DataTransferItemList,FileList,HTMLAllCollection,HTMLCollection,HTMLFormElement,HTMLSelectElement,' + - 'MediaList,MimeTypeArray,NamedNodeMap,NodeList,PaintRequestList,Plugin,PluginArray,SVGLengthList,SVGNumberList,' + - 'SVGPathSegList,SVGPointList,SVGStringList,SVGTransformList,SourceBufferList,StyleSheetList,TextTrackCueList,' + - 'TextTrackList,TouchList').split(','); - -for (var i = 0; i < DOMIterables.length; i++) { - var NAME = DOMIterables[i]; - var Collection = global[NAME]; - var proto = Collection && Collection.prototype; - if (proto && !proto[TO_STRING_TAG]) hide(proto, TO_STRING_TAG, NAME); - Iterators[NAME] = Iterators.Array; -} - -},{"./_global":178,"./_hide":180,"./_iterators":191,"./_wks":216,"./es6.array.iterator":218}],223:[function(require,module,exports){ -(function (Buffer){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// NOTE: These type checking functions intentionally don't use `instanceof` -// because it is fragile and can be easily faked with `Object.create()`. - -function isArray(arg) { - if (Array.isArray) { - return Array.isArray(arg); - } - return objectToString(arg) === '[object Array]'; -} -exports.isArray = isArray; - -function isBoolean(arg) { - return typeof arg === 'boolean'; -} -exports.isBoolean = isBoolean; - -function isNull(arg) { - return arg === null; -} -exports.isNull = isNull; - -function isNullOrUndefined(arg) { - return arg == null; -} -exports.isNullOrUndefined = isNullOrUndefined; - -function isNumber(arg) { - return typeof arg === 'number'; -} -exports.isNumber = isNumber; - -function isString(arg) { - return typeof arg === 'string'; -} -exports.isString = isString; - -function isSymbol(arg) { - return typeof arg === 'symbol'; -} -exports.isSymbol = isSymbol; - -function isUndefined(arg) { - return arg === void 0; -} -exports.isUndefined = isUndefined; - -function isRegExp(re) { - return objectToString(re) === '[object RegExp]'; -} -exports.isRegExp = isRegExp; - -function isObject(arg) { - return typeof arg === 'object' && arg !== null; -} -exports.isObject = isObject; - -function isDate(d) { - return objectToString(d) === '[object Date]'; -} -exports.isDate = isDate; - -function isError(e) { - return (objectToString(e) === '[object Error]' || e instanceof Error); -} -exports.isError = isError; - -function isFunction(arg) { - return typeof arg === 'function'; -} -exports.isFunction = isFunction; - -function isPrimitive(arg) { - return arg === null || - typeof arg === 'boolean' || - typeof arg === 'number' || - typeof arg === 'string' || - typeof arg === 'symbol' || // ES6 symbol - typeof arg === 'undefined'; -} -exports.isPrimitive = isPrimitive; - -exports.isBuffer = Buffer.isBuffer; - -function objectToString(o) { - return Object.prototype.toString.call(o); -} - -}).call(this,{"isBuffer":require("../../insert-module-globals/node_modules/is-buffer/index.js")}) -},{"../../insert-module-globals/node_modules/is-buffer/index.js":397}],224:[function(require,module,exports){ -'use strict'; - -var _buffer = require('buffer'); - -var _create_buffer = require('./create_buffer'); - -var _create_buffer2 = _interopRequireDefault(_create_buffer); - -var _define_crc = require('./define_crc'); - -var _define_crc2 = _interopRequireDefault(_define_crc); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -module.exports = (0, _define_crc2.default)('crc1', function (buf, previous) { - if (!_buffer.Buffer.isBuffer(buf)) buf = (0, _create_buffer2.default)(buf); - - var crc = ~~previous; - var accum = 0; - - for (var index = 0; index < buf.length; index++) { - var byte = buf[index]; - accum += byte; - } - - crc += accum % 256; - return crc % 256; -}); -},{"./create_buffer":235,"./define_crc":236,"buffer":146}],225:[function(require,module,exports){ -'use strict'; - -var _buffer = require('buffer'); - -var _create_buffer = require('./create_buffer'); - -var _create_buffer2 = _interopRequireDefault(_create_buffer); - -var _define_crc = require('./define_crc'); - -var _define_crc2 = _interopRequireDefault(_define_crc); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -// Generated by `./pycrc.py --algorithm=table-driven --model=crc-16 --generate=c` -var TABLE = [0x0000, 0xc0c1, 0xc181, 0x0140, 0xc301, 0x03c0, 0x0280, 0xc241, 0xc601, 0x06c0, 0x0780, 0xc741, 0x0500, 0xc5c1, 0xc481, 0x0440, 0xcc01, 0x0cc0, 0x0d80, 0xcd41, 0x0f00, 0xcfc1, 0xce81, 0x0e40, 0x0a00, 0xcac1, 0xcb81, 0x0b40, 0xc901, 0x09c0, 0x0880, 0xc841, 0xd801, 0x18c0, 0x1980, 0xd941, 0x1b00, 0xdbc1, 0xda81, 0x1a40, 0x1e00, 0xdec1, 0xdf81, 0x1f40, 0xdd01, 0x1dc0, 0x1c80, 0xdc41, 0x1400, 0xd4c1, 0xd581, 0x1540, 0xd701, 0x17c0, 0x1680, 0xd641, 0xd201, 0x12c0, 0x1380, 0xd341, 0x1100, 0xd1c1, 0xd081, 0x1040, 0xf001, 0x30c0, 0x3180, 0xf141, 0x3300, 0xf3c1, 0xf281, 0x3240, 0x3600, 0xf6c1, 0xf781, 0x3740, 0xf501, 0x35c0, 0x3480, 0xf441, 0x3c00, 0xfcc1, 0xfd81, 0x3d40, 0xff01, 0x3fc0, 0x3e80, 0xfe41, 0xfa01, 0x3ac0, 0x3b80, 0xfb41, 0x3900, 0xf9c1, 0xf881, 0x3840, 0x2800, 0xe8c1, 0xe981, 0x2940, 0xeb01, 0x2bc0, 0x2a80, 0xea41, 0xee01, 0x2ec0, 0x2f80, 0xef41, 0x2d00, 0xedc1, 0xec81, 0x2c40, 0xe401, 0x24c0, 0x2580, 0xe541, 0x2700, 0xe7c1, 0xe681, 0x2640, 0x2200, 0xe2c1, 0xe381, 0x2340, 0xe101, 0x21c0, 0x2080, 0xe041, 0xa001, 0x60c0, 0x6180, 0xa141, 0x6300, 0xa3c1, 0xa281, 0x6240, 0x6600, 0xa6c1, 0xa781, 0x6740, 0xa501, 0x65c0, 0x6480, 0xa441, 0x6c00, 0xacc1, 0xad81, 0x6d40, 0xaf01, 0x6fc0, 0x6e80, 0xae41, 0xaa01, 0x6ac0, 0x6b80, 0xab41, 0x6900, 0xa9c1, 0xa881, 0x6840, 0x7800, 0xb8c1, 0xb981, 0x7940, 0xbb01, 0x7bc0, 0x7a80, 0xba41, 0xbe01, 0x7ec0, 0x7f80, 0xbf41, 0x7d00, 0xbdc1, 0xbc81, 0x7c40, 0xb401, 0x74c0, 0x7580, 0xb541, 0x7700, 0xb7c1, 0xb681, 0x7640, 0x7200, 0xb2c1, 0xb381, 0x7340, 0xb101, 0x71c0, 0x7080, 0xb041, 0x5000, 0x90c1, 0x9181, 0x5140, 0x9301, 0x53c0, 0x5280, 0x9241, 0x9601, 0x56c0, 0x5780, 0x9741, 0x5500, 0x95c1, 0x9481, 0x5440, 0x9c01, 0x5cc0, 0x5d80, 0x9d41, 0x5f00, 0x9fc1, 0x9e81, 0x5e40, 0x5a00, 0x9ac1, 0x9b81, 0x5b40, 0x9901, 0x59c0, 0x5880, 0x9841, 0x8801, 0x48c0, 0x4980, 0x8941, 0x4b00, 0x8bc1, 0x8a81, 0x4a40, 0x4e00, 0x8ec1, 0x8f81, 0x4f40, 0x8d01, 0x4dc0, 0x4c80, 0x8c41, 0x4400, 0x84c1, 0x8581, 0x4540, 0x8701, 0x47c0, 0x4680, 0x8641, 0x8201, 0x42c0, 0x4380, 0x8341, 0x4100, 0x81c1, 0x8081, 0x4040]; - -if (typeof Int32Array !== 'undefined') TABLE = new Int32Array(TABLE); - -module.exports = (0, _define_crc2.default)('crc-16', function (buf, previous) { - if (!_buffer.Buffer.isBuffer(buf)) buf = (0, _create_buffer2.default)(buf); - - var crc = ~~previous; - - for (var index = 0; index < buf.length; index++) { - var byte = buf[index]; - crc = (TABLE[(crc ^ byte) & 0xff] ^ crc >> 8) & 0xffff; - } - - return crc; -}); -},{"./create_buffer":235,"./define_crc":236,"buffer":146}],226:[function(require,module,exports){ -'use strict'; - -var _buffer = require('buffer'); - -var _create_buffer = require('./create_buffer'); - -var _create_buffer2 = _interopRequireDefault(_create_buffer); - -var _define_crc = require('./define_crc'); - -var _define_crc2 = _interopRequireDefault(_define_crc); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -// Generated by `./pycrc.py --algorithm=table-driven --model=ccitt --generate=c` -var TABLE = [0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7, 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef, 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6, 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de, 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485, 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d, 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4, 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc, 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823, 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b, 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12, 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a, 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41, 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49, 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70, 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78, 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f, 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067, 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e, 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256, 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d, 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c, 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634, 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab, 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3, 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a, 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92, 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9, 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1, 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8, 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0]; - -if (typeof Int32Array !== 'undefined') TABLE = new Int32Array(TABLE); - -module.exports = (0, _define_crc2.default)('ccitt', function (buf, previous) { - if (!_buffer.Buffer.isBuffer(buf)) buf = (0, _create_buffer2.default)(buf); - - var crc = typeof previous !== 'undefined' ? ~~previous : 0xffff; - - for (var index = 0; index < buf.length; index++) { - var byte = buf[index]; - crc = (TABLE[(crc >> 8 ^ byte) & 0xff] ^ crc << 8) & 0xffff; - } - - return crc; -}); -},{"./create_buffer":235,"./define_crc":236,"buffer":146}],227:[function(require,module,exports){ -'use strict'; - -var _buffer = require('buffer'); - -var _create_buffer = require('./create_buffer'); - -var _create_buffer2 = _interopRequireDefault(_create_buffer); - -var _define_crc = require('./define_crc'); - -var _define_crc2 = _interopRequireDefault(_define_crc); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -// Generated by `./pycrc.py --algorithm=table-driven --model=kermit --generate=c` -var TABLE = [0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf, 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7, 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e, 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876, 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd, 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5, 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c, 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974, 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb, 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3, 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a, 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72, 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9, 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1, 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738, 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70, 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7, 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff, 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036, 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e, 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5, 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd, 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134, 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c, 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3, 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb, 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232, 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a, 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1, 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9, 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330, 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78]; - -if (typeof Int32Array !== 'undefined') TABLE = new Int32Array(TABLE); - -module.exports = (0, _define_crc2.default)('kermit', function (buf, previous) { - if (!_buffer.Buffer.isBuffer(buf)) buf = (0, _create_buffer2.default)(buf); - - var crc = typeof previous !== 'undefined' ? ~~previous : 0x0000; - - for (var index = 0; index < buf.length; index++) { - var byte = buf[index]; - crc = (TABLE[(crc ^ byte) & 0xff] ^ crc >> 8) & 0xffff; - } - - return crc; -}); -},{"./create_buffer":235,"./define_crc":236,"buffer":146}],228:[function(require,module,exports){ -'use strict'; - -var _buffer = require('buffer'); - -var _create_buffer = require('./create_buffer'); - -var _create_buffer2 = _interopRequireDefault(_create_buffer); - -var _define_crc = require('./define_crc'); - -var _define_crc2 = _interopRequireDefault(_define_crc); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -// Generated by `./pycrc.py --algorithm=table-driven --model=crc-16-modbus --generate=c` -var TABLE = [0x0000, 0xc0c1, 0xc181, 0x0140, 0xc301, 0x03c0, 0x0280, 0xc241, 0xc601, 0x06c0, 0x0780, 0xc741, 0x0500, 0xc5c1, 0xc481, 0x0440, 0xcc01, 0x0cc0, 0x0d80, 0xcd41, 0x0f00, 0xcfc1, 0xce81, 0x0e40, 0x0a00, 0xcac1, 0xcb81, 0x0b40, 0xc901, 0x09c0, 0x0880, 0xc841, 0xd801, 0x18c0, 0x1980, 0xd941, 0x1b00, 0xdbc1, 0xda81, 0x1a40, 0x1e00, 0xdec1, 0xdf81, 0x1f40, 0xdd01, 0x1dc0, 0x1c80, 0xdc41, 0x1400, 0xd4c1, 0xd581, 0x1540, 0xd701, 0x17c0, 0x1680, 0xd641, 0xd201, 0x12c0, 0x1380, 0xd341, 0x1100, 0xd1c1, 0xd081, 0x1040, 0xf001, 0x30c0, 0x3180, 0xf141, 0x3300, 0xf3c1, 0xf281, 0x3240, 0x3600, 0xf6c1, 0xf781, 0x3740, 0xf501, 0x35c0, 0x3480, 0xf441, 0x3c00, 0xfcc1, 0xfd81, 0x3d40, 0xff01, 0x3fc0, 0x3e80, 0xfe41, 0xfa01, 0x3ac0, 0x3b80, 0xfb41, 0x3900, 0xf9c1, 0xf881, 0x3840, 0x2800, 0xe8c1, 0xe981, 0x2940, 0xeb01, 0x2bc0, 0x2a80, 0xea41, 0xee01, 0x2ec0, 0x2f80, 0xef41, 0x2d00, 0xedc1, 0xec81, 0x2c40, 0xe401, 0x24c0, 0x2580, 0xe541, 0x2700, 0xe7c1, 0xe681, 0x2640, 0x2200, 0xe2c1, 0xe381, 0x2340, 0xe101, 0x21c0, 0x2080, 0xe041, 0xa001, 0x60c0, 0x6180, 0xa141, 0x6300, 0xa3c1, 0xa281, 0x6240, 0x6600, 0xa6c1, 0xa781, 0x6740, 0xa501, 0x65c0, 0x6480, 0xa441, 0x6c00, 0xacc1, 0xad81, 0x6d40, 0xaf01, 0x6fc0, 0x6e80, 0xae41, 0xaa01, 0x6ac0, 0x6b80, 0xab41, 0x6900, 0xa9c1, 0xa881, 0x6840, 0x7800, 0xb8c1, 0xb981, 0x7940, 0xbb01, 0x7bc0, 0x7a80, 0xba41, 0xbe01, 0x7ec0, 0x7f80, 0xbf41, 0x7d00, 0xbdc1, 0xbc81, 0x7c40, 0xb401, 0x74c0, 0x7580, 0xb541, 0x7700, 0xb7c1, 0xb681, 0x7640, 0x7200, 0xb2c1, 0xb381, 0x7340, 0xb101, 0x71c0, 0x7080, 0xb041, 0x5000, 0x90c1, 0x9181, 0x5140, 0x9301, 0x53c0, 0x5280, 0x9241, 0x9601, 0x56c0, 0x5780, 0x9741, 0x5500, 0x95c1, 0x9481, 0x5440, 0x9c01, 0x5cc0, 0x5d80, 0x9d41, 0x5f00, 0x9fc1, 0x9e81, 0x5e40, 0x5a00, 0x9ac1, 0x9b81, 0x5b40, 0x9901, 0x59c0, 0x5880, 0x9841, 0x8801, 0x48c0, 0x4980, 0x8941, 0x4b00, 0x8bc1, 0x8a81, 0x4a40, 0x4e00, 0x8ec1, 0x8f81, 0x4f40, 0x8d01, 0x4dc0, 0x4c80, 0x8c41, 0x4400, 0x84c1, 0x8581, 0x4540, 0x8701, 0x47c0, 0x4680, 0x8641, 0x8201, 0x42c0, 0x4380, 0x8341, 0x4100, 0x81c1, 0x8081, 0x4040]; - -if (typeof Int32Array !== 'undefined') TABLE = new Int32Array(TABLE); - -module.exports = (0, _define_crc2.default)('crc-16-modbus', function (buf, previous) { - if (!_buffer.Buffer.isBuffer(buf)) buf = (0, _create_buffer2.default)(buf); - - var crc = typeof previous !== 'undefined' ? ~~previous : 0xffff; - - for (var index = 0; index < buf.length; index++) { - var byte = buf[index]; - crc = (TABLE[(crc ^ byte) & 0xff] ^ crc >> 8) & 0xffff; - } - - return crc; -}); -},{"./create_buffer":235,"./define_crc":236,"buffer":146}],229:[function(require,module,exports){ -'use strict'; - -var _buffer = require('buffer'); - -var _create_buffer = require('./create_buffer'); - -var _create_buffer2 = _interopRequireDefault(_create_buffer); - -var _define_crc = require('./define_crc'); - -var _define_crc2 = _interopRequireDefault(_define_crc); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -module.exports = (0, _define_crc2.default)('xmodem', function (buf, previous) { - if (!_buffer.Buffer.isBuffer(buf)) buf = (0, _create_buffer2.default)(buf); - - var crc = typeof previous !== 'undefined' ? ~~previous : 0x0; - - for (var index = 0; index < buf.length; index++) { - var byte = buf[index]; - var code = crc >>> 8 & 0xFF; - - code ^= byte & 0xFF; - code ^= code >>> 4; - crc = crc << 8 & 0xFFFF; - crc ^= code; - code = code << 5 & 0xFFFF; - crc ^= code; - code = code << 7 & 0xFFFF; - crc ^= code; - } - - return crc; -}); -},{"./create_buffer":235,"./define_crc":236,"buffer":146}],230:[function(require,module,exports){ -'use strict'; - -var _buffer = require('buffer'); - -var _create_buffer = require('./create_buffer'); - -var _create_buffer2 = _interopRequireDefault(_create_buffer); - -var _define_crc = require('./define_crc'); - -var _define_crc2 = _interopRequireDefault(_define_crc); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -// Generated by `./pycrc.py --algorithm=table-drive --model=crc-24 --generate=c` -var TABLE = [0x000000, 0x864cfb, 0x8ad50d, 0x0c99f6, 0x93e6e1, 0x15aa1a, 0x1933ec, 0x9f7f17, 0xa18139, 0x27cdc2, 0x2b5434, 0xad18cf, 0x3267d8, 0xb42b23, 0xb8b2d5, 0x3efe2e, 0xc54e89, 0x430272, 0x4f9b84, 0xc9d77f, 0x56a868, 0xd0e493, 0xdc7d65, 0x5a319e, 0x64cfb0, 0xe2834b, 0xee1abd, 0x685646, 0xf72951, 0x7165aa, 0x7dfc5c, 0xfbb0a7, 0x0cd1e9, 0x8a9d12, 0x8604e4, 0x00481f, 0x9f3708, 0x197bf3, 0x15e205, 0x93aefe, 0xad50d0, 0x2b1c2b, 0x2785dd, 0xa1c926, 0x3eb631, 0xb8faca, 0xb4633c, 0x322fc7, 0xc99f60, 0x4fd39b, 0x434a6d, 0xc50696, 0x5a7981, 0xdc357a, 0xd0ac8c, 0x56e077, 0x681e59, 0xee52a2, 0xe2cb54, 0x6487af, 0xfbf8b8, 0x7db443, 0x712db5, 0xf7614e, 0x19a3d2, 0x9fef29, 0x9376df, 0x153a24, 0x8a4533, 0x0c09c8, 0x00903e, 0x86dcc5, 0xb822eb, 0x3e6e10, 0x32f7e6, 0xb4bb1d, 0x2bc40a, 0xad88f1, 0xa11107, 0x275dfc, 0xdced5b, 0x5aa1a0, 0x563856, 0xd074ad, 0x4f0bba, 0xc94741, 0xc5deb7, 0x43924c, 0x7d6c62, 0xfb2099, 0xf7b96f, 0x71f594, 0xee8a83, 0x68c678, 0x645f8e, 0xe21375, 0x15723b, 0x933ec0, 0x9fa736, 0x19ebcd, 0x8694da, 0x00d821, 0x0c41d7, 0x8a0d2c, 0xb4f302, 0x32bff9, 0x3e260f, 0xb86af4, 0x2715e3, 0xa15918, 0xadc0ee, 0x2b8c15, 0xd03cb2, 0x567049, 0x5ae9bf, 0xdca544, 0x43da53, 0xc596a8, 0xc90f5e, 0x4f43a5, 0x71bd8b, 0xf7f170, 0xfb6886, 0x7d247d, 0xe25b6a, 0x641791, 0x688e67, 0xeec29c, 0x3347a4, 0xb50b5f, 0xb992a9, 0x3fde52, 0xa0a145, 0x26edbe, 0x2a7448, 0xac38b3, 0x92c69d, 0x148a66, 0x181390, 0x9e5f6b, 0x01207c, 0x876c87, 0x8bf571, 0x0db98a, 0xf6092d, 0x7045d6, 0x7cdc20, 0xfa90db, 0x65efcc, 0xe3a337, 0xef3ac1, 0x69763a, 0x578814, 0xd1c4ef, 0xdd5d19, 0x5b11e2, 0xc46ef5, 0x42220e, 0x4ebbf8, 0xc8f703, 0x3f964d, 0xb9dab6, 0xb54340, 0x330fbb, 0xac70ac, 0x2a3c57, 0x26a5a1, 0xa0e95a, 0x9e1774, 0x185b8f, 0x14c279, 0x928e82, 0x0df195, 0x8bbd6e, 0x872498, 0x016863, 0xfad8c4, 0x7c943f, 0x700dc9, 0xf64132, 0x693e25, 0xef72de, 0xe3eb28, 0x65a7d3, 0x5b59fd, 0xdd1506, 0xd18cf0, 0x57c00b, 0xc8bf1c, 0x4ef3e7, 0x426a11, 0xc426ea, 0x2ae476, 0xaca88d, 0xa0317b, 0x267d80, 0xb90297, 0x3f4e6c, 0x33d79a, 0xb59b61, 0x8b654f, 0x0d29b4, 0x01b042, 0x87fcb9, 0x1883ae, 0x9ecf55, 0x9256a3, 0x141a58, 0xefaaff, 0x69e604, 0x657ff2, 0xe33309, 0x7c4c1e, 0xfa00e5, 0xf69913, 0x70d5e8, 0x4e2bc6, 0xc8673d, 0xc4fecb, 0x42b230, 0xddcd27, 0x5b81dc, 0x57182a, 0xd154d1, 0x26359f, 0xa07964, 0xace092, 0x2aac69, 0xb5d37e, 0x339f85, 0x3f0673, 0xb94a88, 0x87b4a6, 0x01f85d, 0x0d61ab, 0x8b2d50, 0x145247, 0x921ebc, 0x9e874a, 0x18cbb1, 0xe37b16, 0x6537ed, 0x69ae1b, 0xefe2e0, 0x709df7, 0xf6d10c, 0xfa48fa, 0x7c0401, 0x42fa2f, 0xc4b6d4, 0xc82f22, 0x4e63d9, 0xd11cce, 0x575035, 0x5bc9c3, 0xdd8538]; - -if (typeof Int32Array !== 'undefined') TABLE = new Int32Array(TABLE); - -module.exports = (0, _define_crc2.default)('crc-24', function (buf, previous) { - if (!_buffer.Buffer.isBuffer(buf)) buf = (0, _create_buffer2.default)(buf); - - var crc = typeof previous !== 'undefined' ? ~~previous : 0xb704ce; - - for (var index = 0; index < buf.length; index++) { - var byte = buf[index]; - crc = (TABLE[(crc >> 16 ^ byte) & 0xff] ^ crc << 8) & 0xffffff; - } - - return crc; -}); -},{"./create_buffer":235,"./define_crc":236,"buffer":146}],231:[function(require,module,exports){ -'use strict'; - -var _buffer = require('buffer'); - -var _create_buffer = require('./create_buffer'); - -var _create_buffer2 = _interopRequireDefault(_create_buffer); - -var _define_crc = require('./define_crc'); - -var _define_crc2 = _interopRequireDefault(_define_crc); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -// Generated by `./pycrc.py --algorithm=table-driven --model=crc-32 --generate=c` -var TABLE = [0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d]; - -if (typeof Int32Array !== 'undefined') TABLE = new Int32Array(TABLE); - -module.exports = (0, _define_crc2.default)('crc-32', function (buf, previous) { - if (!_buffer.Buffer.isBuffer(buf)) buf = (0, _create_buffer2.default)(buf); - - var crc = previous === 0 ? 0 : ~~previous ^ -1; - - for (var index = 0; index < buf.length; index++) { - var byte = buf[index]; - crc = TABLE[(crc ^ byte) & 0xff] ^ crc >>> 8; - } - - return crc ^ -1; -}); -},{"./create_buffer":235,"./define_crc":236,"buffer":146}],232:[function(require,module,exports){ -'use strict'; - -var _buffer = require('buffer'); - -var _create_buffer = require('./create_buffer'); - -var _create_buffer2 = _interopRequireDefault(_create_buffer); - -var _define_crc = require('./define_crc'); - -var _define_crc2 = _interopRequireDefault(_define_crc); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -// Generated by `./pycrc.py --algorithm=table-driven --model=crc-8 --generate=c` -var TABLE = [0x00, 0x07, 0x0e, 0x09, 0x1c, 0x1b, 0x12, 0x15, 0x38, 0x3f, 0x36, 0x31, 0x24, 0x23, 0x2a, 0x2d, 0x70, 0x77, 0x7e, 0x79, 0x6c, 0x6b, 0x62, 0x65, 0x48, 0x4f, 0x46, 0x41, 0x54, 0x53, 0x5a, 0x5d, 0xe0, 0xe7, 0xee, 0xe9, 0xfc, 0xfb, 0xf2, 0xf5, 0xd8, 0xdf, 0xd6, 0xd1, 0xc4, 0xc3, 0xca, 0xcd, 0x90, 0x97, 0x9e, 0x99, 0x8c, 0x8b, 0x82, 0x85, 0xa8, 0xaf, 0xa6, 0xa1, 0xb4, 0xb3, 0xba, 0xbd, 0xc7, 0xc0, 0xc9, 0xce, 0xdb, 0xdc, 0xd5, 0xd2, 0xff, 0xf8, 0xf1, 0xf6, 0xe3, 0xe4, 0xed, 0xea, 0xb7, 0xb0, 0xb9, 0xbe, 0xab, 0xac, 0xa5, 0xa2, 0x8f, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9d, 0x9a, 0x27, 0x20, 0x29, 0x2e, 0x3b, 0x3c, 0x35, 0x32, 0x1f, 0x18, 0x11, 0x16, 0x03, 0x04, 0x0d, 0x0a, 0x57, 0x50, 0x59, 0x5e, 0x4b, 0x4c, 0x45, 0x42, 0x6f, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7d, 0x7a, 0x89, 0x8e, 0x87, 0x80, 0x95, 0x92, 0x9b, 0x9c, 0xb1, 0xb6, 0xbf, 0xb8, 0xad, 0xaa, 0xa3, 0xa4, 0xf9, 0xfe, 0xf7, 0xf0, 0xe5, 0xe2, 0xeb, 0xec, 0xc1, 0xc6, 0xcf, 0xc8, 0xdd, 0xda, 0xd3, 0xd4, 0x69, 0x6e, 0x67, 0x60, 0x75, 0x72, 0x7b, 0x7c, 0x51, 0x56, 0x5f, 0x58, 0x4d, 0x4a, 0x43, 0x44, 0x19, 0x1e, 0x17, 0x10, 0x05, 0x02, 0x0b, 0x0c, 0x21, 0x26, 0x2f, 0x28, 0x3d, 0x3a, 0x33, 0x34, 0x4e, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5c, 0x5b, 0x76, 0x71, 0x78, 0x7f, 0x6a, 0x6d, 0x64, 0x63, 0x3e, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2c, 0x2b, 0x06, 0x01, 0x08, 0x0f, 0x1a, 0x1d, 0x14, 0x13, 0xae, 0xa9, 0xa0, 0xa7, 0xb2, 0xb5, 0xbc, 0xbb, 0x96, 0x91, 0x98, 0x9f, 0x8a, 0x8d, 0x84, 0x83, 0xde, 0xd9, 0xd0, 0xd7, 0xc2, 0xc5, 0xcc, 0xcb, 0xe6, 0xe1, 0xe8, 0xef, 0xfa, 0xfd, 0xf4, 0xf3]; - -if (typeof Int32Array !== 'undefined') TABLE = new Int32Array(TABLE); - -module.exports = (0, _define_crc2.default)('crc-8', function (buf, previous) { - if (!_buffer.Buffer.isBuffer(buf)) buf = (0, _create_buffer2.default)(buf); - - var crc = ~~previous; - - for (var index = 0; index < buf.length; index++) { - var byte = buf[index]; - crc = TABLE[(crc ^ byte) & 0xff] & 0xff; - } - - return crc; -}); -},{"./create_buffer":235,"./define_crc":236,"buffer":146}],233:[function(require,module,exports){ -'use strict'; - -var _buffer = require('buffer'); - -var _create_buffer = require('./create_buffer'); - -var _create_buffer2 = _interopRequireDefault(_create_buffer); - -var _define_crc = require('./define_crc'); - -var _define_crc2 = _interopRequireDefault(_define_crc); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -// Generated by `./pycrc.py --algorithm=table-driven --model=dallas-1-wire --generate=c` -var TABLE = [0x00, 0x5e, 0xbc, 0xe2, 0x61, 0x3f, 0xdd, 0x83, 0xc2, 0x9c, 0x7e, 0x20, 0xa3, 0xfd, 0x1f, 0x41, 0x9d, 0xc3, 0x21, 0x7f, 0xfc, 0xa2, 0x40, 0x1e, 0x5f, 0x01, 0xe3, 0xbd, 0x3e, 0x60, 0x82, 0xdc, 0x23, 0x7d, 0x9f, 0xc1, 0x42, 0x1c, 0xfe, 0xa0, 0xe1, 0xbf, 0x5d, 0x03, 0x80, 0xde, 0x3c, 0x62, 0xbe, 0xe0, 0x02, 0x5c, 0xdf, 0x81, 0x63, 0x3d, 0x7c, 0x22, 0xc0, 0x9e, 0x1d, 0x43, 0xa1, 0xff, 0x46, 0x18, 0xfa, 0xa4, 0x27, 0x79, 0x9b, 0xc5, 0x84, 0xda, 0x38, 0x66, 0xe5, 0xbb, 0x59, 0x07, 0xdb, 0x85, 0x67, 0x39, 0xba, 0xe4, 0x06, 0x58, 0x19, 0x47, 0xa5, 0xfb, 0x78, 0x26, 0xc4, 0x9a, 0x65, 0x3b, 0xd9, 0x87, 0x04, 0x5a, 0xb8, 0xe6, 0xa7, 0xf9, 0x1b, 0x45, 0xc6, 0x98, 0x7a, 0x24, 0xf8, 0xa6, 0x44, 0x1a, 0x99, 0xc7, 0x25, 0x7b, 0x3a, 0x64, 0x86, 0xd8, 0x5b, 0x05, 0xe7, 0xb9, 0x8c, 0xd2, 0x30, 0x6e, 0xed, 0xb3, 0x51, 0x0f, 0x4e, 0x10, 0xf2, 0xac, 0x2f, 0x71, 0x93, 0xcd, 0x11, 0x4f, 0xad, 0xf3, 0x70, 0x2e, 0xcc, 0x92, 0xd3, 0x8d, 0x6f, 0x31, 0xb2, 0xec, 0x0e, 0x50, 0xaf, 0xf1, 0x13, 0x4d, 0xce, 0x90, 0x72, 0x2c, 0x6d, 0x33, 0xd1, 0x8f, 0x0c, 0x52, 0xb0, 0xee, 0x32, 0x6c, 0x8e, 0xd0, 0x53, 0x0d, 0xef, 0xb1, 0xf0, 0xae, 0x4c, 0x12, 0x91, 0xcf, 0x2d, 0x73, 0xca, 0x94, 0x76, 0x28, 0xab, 0xf5, 0x17, 0x49, 0x08, 0x56, 0xb4, 0xea, 0x69, 0x37, 0xd5, 0x8b, 0x57, 0x09, 0xeb, 0xb5, 0x36, 0x68, 0x8a, 0xd4, 0x95, 0xcb, 0x29, 0x77, 0xf4, 0xaa, 0x48, 0x16, 0xe9, 0xb7, 0x55, 0x0b, 0x88, 0xd6, 0x34, 0x6a, 0x2b, 0x75, 0x97, 0xc9, 0x4a, 0x14, 0xf6, 0xa8, 0x74, 0x2a, 0xc8, 0x96, 0x15, 0x4b, 0xa9, 0xf7, 0xb6, 0xe8, 0x0a, 0x54, 0xd7, 0x89, 0x6b, 0x35]; - -if (typeof Int32Array !== 'undefined') TABLE = new Int32Array(TABLE); - -module.exports = (0, _define_crc2.default)('dallas-1-wire', function (buf, previous) { - if (!_buffer.Buffer.isBuffer(buf)) buf = (0, _create_buffer2.default)(buf); - - var crc = ~~previous; - - for (var index = 0; index < buf.length; index++) { - var byte = buf[index]; - crc = TABLE[(crc ^ byte) & 0xff] & 0xff; - } - - return crc; -}); -},{"./create_buffer":235,"./define_crc":236,"buffer":146}],234:[function(require,module,exports){ -'use strict'; - -var _buffer = require('buffer'); - -var _create_buffer = require('./create_buffer'); - -var _create_buffer2 = _interopRequireDefault(_create_buffer); - -var _define_crc = require('./define_crc'); - -var _define_crc2 = _interopRequireDefault(_define_crc); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -// Generated by `./pycrc.py --algorithm=table-driven --model=jam --generate=c` -var TABLE = [0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d]; - -if (typeof Int32Array !== 'undefined') TABLE = new Int32Array(TABLE); - -module.exports = (0, _define_crc2.default)('jam', function (buf) { - var previous = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : -1; - - if (!_buffer.Buffer.isBuffer(buf)) buf = (0, _create_buffer2.default)(buf); - - var crc = previous === 0 ? 0 : ~~previous; - - for (var index = 0; index < buf.length; index++) { - var byte = buf[index]; - crc = TABLE[(crc ^ byte) & 0xff] ^ crc >>> 8; - } - - return crc; -}); -},{"./create_buffer":235,"./define_crc":236,"buffer":146}],235:[function(require,module,exports){ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); - -var _buffer = require('buffer'); - -var createBuffer = _buffer.Buffer.from && _buffer.Buffer.alloc && _buffer.Buffer.allocUnsafe && _buffer.Buffer.allocUnsafeSlow ? _buffer.Buffer.from - -// support for Node < 5.10 -: function (val) { - return new _buffer.Buffer(val); -}; - -exports.default = createBuffer; -},{"buffer":146}],236:[function(require,module,exports){ -"use strict"; - -Object.defineProperty(exports, "__esModule", { - value: true -}); - -exports.default = function (model, calc) { - var fn = function fn(buf, previous) { - return calc(buf, previous) >>> 0; - }; - fn.signed = calc; - fn.unsigned = fn; - fn.model = model; - - return fn; -}; -},{}],237:[function(require,module,exports){ -'use strict'; - -module.exports = { - crc1: require('./crc1'), - crc8: require('./crc8'), - crc81wire: require('./crc8_1wire'), - crc16: require('./crc16'), - crc16ccitt: require('./crc16_ccitt'), - crc16modbus: require('./crc16_modbus'), - crc16xmodem: require('./crc16_xmodem'), - crc16kermit: require('./crc16_kermit'), - crc24: require('./crc24'), - crc32: require('./crc32'), - crcjam: require('./crcjam') -}; -},{"./crc1":224,"./crc16":225,"./crc16_ccitt":226,"./crc16_kermit":227,"./crc16_modbus":228,"./crc16_xmodem":229,"./crc24":230,"./crc32":231,"./crc8":232,"./crc8_1wire":233,"./crcjam":234}],238:[function(require,module,exports){ -(function (Buffer){ -var elliptic = require('elliptic') -var BN = require('bn.js') - -module.exports = function createECDH (curve) { - return new ECDH(curve) -} - -var aliases = { - secp256k1: { - name: 'secp256k1', - byteLength: 32 - }, - secp224r1: { - name: 'p224', - byteLength: 28 - }, - prime256v1: { - name: 'p256', - byteLength: 32 - }, - prime192v1: { - name: 'p192', - byteLength: 24 - }, - ed25519: { - name: 'ed25519', - byteLength: 32 - }, - secp384r1: { - name: 'p384', - byteLength: 48 - }, - secp521r1: { - name: 'p521', - byteLength: 66 - } -} - -aliases.p224 = aliases.secp224r1 -aliases.p256 = aliases.secp256r1 = aliases.prime256v1 -aliases.p192 = aliases.secp192r1 = aliases.prime192v1 -aliases.p384 = aliases.secp384r1 -aliases.p521 = aliases.secp521r1 - -function ECDH (curve) { - this.curveType = aliases[curve] - if (!this.curveType) { - this.curveType = { - name: curve - } - } - this.curve = new elliptic.ec(this.curveType.name) // eslint-disable-line new-cap - this.keys = void 0 -} - -ECDH.prototype.generateKeys = function (enc, format) { - this.keys = this.curve.genKeyPair() - return this.getPublicKey(enc, format) -} - -ECDH.prototype.computeSecret = function (other, inenc, enc) { - inenc = inenc || 'utf8' - if (!Buffer.isBuffer(other)) { - other = new Buffer(other, inenc) - } - var otherPub = this.curve.keyFromPublic(other).getPublic() - var out = otherPub.mul(this.keys.getPrivate()).getX() - return formatReturnValue(out, enc, this.curveType.byteLength) -} - -ECDH.prototype.getPublicKey = function (enc, format) { - var key = this.keys.getPublic(format === 'compressed', true) - if (format === 'hybrid') { - if (key[key.length - 1] % 2) { - key[0] = 7 - } else { - key[0] = 6 - } - } - return formatReturnValue(key, enc) -} - -ECDH.prototype.getPrivateKey = function (enc) { - return formatReturnValue(this.keys.getPrivate(), enc) -} - -ECDH.prototype.setPublicKey = function (pub, enc) { - enc = enc || 'utf8' - if (!Buffer.isBuffer(pub)) { - pub = new Buffer(pub, enc) - } - this.keys._importPublic(pub) - return this -} - -ECDH.prototype.setPrivateKey = function (priv, enc) { - enc = enc || 'utf8' - if (!Buffer.isBuffer(priv)) { - priv = new Buffer(priv, enc) - } - - var _priv = new BN(priv) - _priv = _priv.toString(16) - this.keys = this.curve.genKeyPair() - this.keys._importPrivate(_priv) - return this -} - -function formatReturnValue (bn, enc, len) { - if (!Array.isArray(bn)) { - bn = bn.toArray() - } - var buf = new Buffer(bn) - if (len && buf.length < len) { - var zeros = new Buffer(len - buf.length) - zeros.fill(0) - buf = Buffer.concat([zeros, buf]) - } - if (!enc) { - return buf - } else { - return buf.toString(enc) - } -} - -}).call(this,require("buffer").Buffer) -},{"bn.js":108,"buffer":146,"elliptic":317}],239:[function(require,module,exports){ -'use strict' -var inherits = require('inherits') -var MD5 = require('md5.js') -var RIPEMD160 = require('ripemd160') -var sha = require('sha.js') -var Base = require('cipher-base') - -function Hash (hash) { - Base.call(this, 'digest') - - this._hash = hash -} - -inherits(Hash, Base) - -Hash.prototype._update = function (data) { - this._hash.update(data) -} - -Hash.prototype._final = function () { - return this._hash.digest() -} - -module.exports = function createHash (alg) { - alg = alg.toLowerCase() - if (alg === 'md5') return new MD5() - if (alg === 'rmd160' || alg === 'ripemd160') return new RIPEMD160() - - return new Hash(sha(alg)) -} - -},{"cipher-base":155,"inherits":396,"md5.js":637,"ripemd160":740,"sha.js":770}],240:[function(require,module,exports){ -var MD5 = require('md5.js') - -module.exports = function (buffer) { - return new MD5().update(buffer).digest() -} - -},{"md5.js":637}],241:[function(require,module,exports){ -'use strict' -var inherits = require('inherits') -var Legacy = require('./legacy') -var Base = require('cipher-base') -var Buffer = require('safe-buffer').Buffer -var md5 = require('create-hash/md5') -var RIPEMD160 = require('ripemd160') - -var sha = require('sha.js') - -var ZEROS = Buffer.alloc(128) - -function Hmac (alg, key) { - Base.call(this, 'digest') - if (typeof key === 'string') { - key = Buffer.from(key) - } - - var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64 - - this._alg = alg - this._key = key - if (key.length > blocksize) { - var hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg) - key = hash.update(key).digest() - } else if (key.length < blocksize) { - key = Buffer.concat([key, ZEROS], blocksize) - } - - var ipad = this._ipad = Buffer.allocUnsafe(blocksize) - var opad = this._opad = Buffer.allocUnsafe(blocksize) - - for (var i = 0; i < blocksize; i++) { - ipad[i] = key[i] ^ 0x36 - opad[i] = key[i] ^ 0x5C - } - this._hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg) - this._hash.update(ipad) -} - -inherits(Hmac, Base) - -Hmac.prototype._update = function (data) { - this._hash.update(data) -} - -Hmac.prototype._final = function () { - var h = this._hash.digest() - var hash = this._alg === 'rmd160' ? new RIPEMD160() : sha(this._alg) - return hash.update(this._opad).update(h).digest() -} - -module.exports = function createHmac (alg, key) { - alg = alg.toLowerCase() - if (alg === 'rmd160' || alg === 'ripemd160') { - return new Hmac('rmd160', key) - } - if (alg === 'md5') { - return new Legacy(md5, key) - } - return new Hmac(alg, key) -} - -},{"./legacy":242,"cipher-base":155,"create-hash/md5":240,"inherits":396,"ripemd160":740,"safe-buffer":742,"sha.js":770}],242:[function(require,module,exports){ -'use strict' -var inherits = require('inherits') -var Buffer = require('safe-buffer').Buffer - -var Base = require('cipher-base') - -var ZEROS = Buffer.alloc(128) -var blocksize = 64 - -function Hmac (alg, key) { - Base.call(this, 'digest') - if (typeof key === 'string') { - key = Buffer.from(key) - } - - this._alg = alg - this._key = key - - if (key.length > blocksize) { - key = alg(key) - } else if (key.length < blocksize) { - key = Buffer.concat([key, ZEROS], blocksize) - } - - var ipad = this._ipad = Buffer.allocUnsafe(blocksize) - var opad = this._opad = Buffer.allocUnsafe(blocksize) - - for (var i = 0; i < blocksize; i++) { - ipad[i] = key[i] ^ 0x36 - opad[i] = key[i] ^ 0x5C - } - - this._hash = [ipad] -} - -inherits(Hmac, Base) - -Hmac.prototype._update = function (data) { - this._hash.push(data) -} - -Hmac.prototype._final = function () { - var h = this._alg(Buffer.concat(this._hash)) - return this._alg(Buffer.concat([this._opad, h])) -} -module.exports = Hmac - -},{"cipher-base":155,"inherits":396,"safe-buffer":742}],243:[function(require,module,exports){ -'use strict' - -exports.randomBytes = exports.rng = exports.pseudoRandomBytes = exports.prng = require('randombytes') -exports.createHash = exports.Hash = require('create-hash') -exports.createHmac = exports.Hmac = require('create-hmac') - -var algos = require('browserify-sign/algos') -var algoKeys = Object.keys(algos) -var hashes = ['sha1', 'sha224', 'sha256', 'sha384', 'sha512', 'md5', 'rmd160'].concat(algoKeys) -exports.getHashes = function () { - return hashes -} - -var p = require('pbkdf2') -exports.pbkdf2 = p.pbkdf2 -exports.pbkdf2Sync = p.pbkdf2Sync - -var aes = require('browserify-cipher') - -exports.Cipher = aes.Cipher -exports.createCipher = aes.createCipher -exports.Cipheriv = aes.Cipheriv -exports.createCipheriv = aes.createCipheriv -exports.Decipher = aes.Decipher -exports.createDecipher = aes.createDecipher -exports.Decipheriv = aes.Decipheriv -exports.createDecipheriv = aes.createDecipheriv -exports.getCiphers = aes.getCiphers -exports.listCiphers = aes.listCiphers - -var dh = require('diffie-hellman') - -exports.DiffieHellmanGroup = dh.DiffieHellmanGroup -exports.createDiffieHellmanGroup = dh.createDiffieHellmanGroup -exports.getDiffieHellman = dh.getDiffieHellman -exports.createDiffieHellman = dh.createDiffieHellman -exports.DiffieHellman = dh.DiffieHellman - -var sign = require('browserify-sign') - -exports.createSign = sign.createSign -exports.Sign = sign.Sign -exports.createVerify = sign.createVerify -exports.Verify = sign.Verify - -exports.createECDH = require('create-ecdh') - -var publicEncrypt = require('public-encrypt') - -exports.publicEncrypt = publicEncrypt.publicEncrypt -exports.privateEncrypt = publicEncrypt.privateEncrypt -exports.publicDecrypt = publicEncrypt.publicDecrypt -exports.privateDecrypt = publicEncrypt.privateDecrypt - -// the least I can do is make error messages for the rest of the node.js/crypto api. -// ;[ -// 'createCredentials' -// ].forEach(function (name) { -// exports[name] = function () { -// throw new Error([ -// 'sorry, ' + name + ' is not implemented yet', -// 'we accept pull requests', -// 'https://github.com/crypto-browserify/crypto-browserify' -// ].join('\n')) -// } -// }) - -var rf = require('randomfill') - -exports.randomFill = rf.randomFill -exports.randomFillSync = rf.randomFillSync - -exports.createCredentials = function () { - throw new Error([ - 'sorry, createCredentials is not implemented yet', - 'we accept pull requests', - 'https://github.com/crypto-browserify/crypto-browserify' - ].join('\n')) -} - -exports.constants = { - 'DH_CHECK_P_NOT_SAFE_PRIME': 2, - 'DH_CHECK_P_NOT_PRIME': 1, - 'DH_UNABLE_TO_CHECK_GENERATOR': 4, - 'DH_NOT_SUITABLE_GENERATOR': 8, - 'NPN_ENABLED': 1, - 'ALPN_ENABLED': 1, - 'RSA_PKCS1_PADDING': 1, - 'RSA_SSLV23_PADDING': 2, - 'RSA_NO_PADDING': 3, - 'RSA_PKCS1_OAEP_PADDING': 4, - 'RSA_X931_PADDING': 5, - 'RSA_PKCS1_PSS_PADDING': 6, - 'POINT_CONVERSION_COMPRESSED': 2, - 'POINT_CONVERSION_UNCOMPRESSED': 4, - 'POINT_CONVERSION_HYBRID': 6 -} - -},{"browserify-cipher":128,"browserify-sign":135,"browserify-sign/algos":132,"create-ecdh":238,"create-hash":239,"create-hmac":241,"diffie-hellman":251,"pbkdf2":672,"public-encrypt":713,"randombytes":724,"randomfill":725}],244:[function(require,module,exports){ -(function (Buffer){ -var Cursor = function(buffer) -{ - if (!(this instanceof Cursor)) - { - return new Cursor(buffer); - } - - if (!(buffer instanceof Buffer)) - { - buffer = new Buffer(buffer); - } - - this._setBuffer(buffer); - this.rewind(); -}; - -Cursor.prototype._setBuffer = function(buffer) -{ - this._buffer = buffer; - this.length = buffer.length; -}; - -Cursor.prototype.buffer = function() -{ - return this._buffer; -}; - -Cursor.prototype.tap = function(cb) -{ - cb(this); - return this; -}; - -Cursor.prototype.clone = function(newIndex) -{ - var c = new this.constructor(this.buffer()); - c.seek(arguments.length === 0 ? this.tell() : newIndex); - - return c; -}; - -Cursor.prototype.tell = function() -{ - return this._index; -}; - -Cursor.prototype.seek = function(op, index) -{ - if (arguments.length == 1) - { - index = op; - op = '='; - } - - if (op == '+') - { - this._index += index; - } - else if (op == '-') - { - this._index -= index; - } - else - { - this._index = index; - } - - return this; -}; - -Cursor.prototype.rewind = function() -{ - return this.seek(0); -}; - -Cursor.prototype.eof = function() -{ - return this.tell() == this.buffer().length; -}; - -Cursor.prototype.write = function(string, length, encoding) -{ - return this.seek('+', this.buffer().write(string, this.tell(), length, encoding)); -}; - -Cursor.prototype.fill = function(value, length) -{ - if (arguments.length == 1) - { - length = this.buffer().length - this.tell(); - } - - this.buffer().fill(value, this.tell(), this.tell() + length); - this.seek('+', length); - - return this; -}; - -Cursor.prototype.slice = function(length) -{ - if (arguments.length === 0) - { - length = this.length - this.tell(); - } - - var c = new this.constructor(this.buffer().slice(this.tell(), this.tell() + length)); - this.seek('+', length); - - return c; -}; - -Cursor.prototype.copyFrom = function(source) -{ - var buf = source instanceof Buffer ? source: source.buffer(); - buf.copy(this.buffer(), this.tell(), 0, buf.length); - this.seek('+', buf.length); - - return this; -}; - -Cursor.prototype.concat = function(list) -{ - for (var i in list) - { - if (list[i] instanceof Cursor) - { - list[i] = list[i].buffer(); - } - } - - list.unshift(this.buffer()); - - var b = Buffer.concat(list); - this._setBuffer(b); - - return this; -}; - -Cursor.prototype.toString = function(encoding, length) -{ - if (arguments.length === 0) - { - encoding = 'utf8'; - length = this.buffer().length - this.tell(); - } - else if (arguments.length === 1) - { - length = this.buffer().length - this.tell(); - } - - var val = this.buffer().toString(encoding, this.tell(), this.tell() + length); - this.seek('+', length); - - return val; -}; - -[ - [1, ['readInt8', 'readUInt8']], - [2, ['readInt16BE', 'readInt16LE', 'readUInt16BE', 'readUInt16LE']], - [4, ['readInt32BE', 'readInt32LE', 'readUInt32BE', 'readUInt32LE', 'readFloatBE', 'readFloatLE']], - [8, ['readDoubleBE', 'readDoubleLE']] -].forEach(function(arr) -{ - arr[1].forEach(function(method) - { - Cursor.prototype[method] = function() - { - var val = this.buffer()[method](this.tell()); - this.seek('+', arr[0]); - - return val; - }; - }); -}); - -[ - [1, ['writeInt8', 'writeUInt8']], - [2, ['writeInt16BE', 'writeInt16LE', 'writeUInt16BE', 'writeUInt16LE']], - [4, ['writeInt32BE', 'writeInt32LE', 'writeUInt32BE', 'writeUInt32LE', 'writeFloatBE', 'writeFloatLE']], - [8, ['writeDoubleBE', 'writeDoubleLE']] -].forEach(function(arr) -{ - arr[1].forEach(function(method) - { - Cursor.prototype[method] = function(val) - { - val = this.buffer()[method](val, this.tell()); - this.seek('+', arr[0]); - - return this; - }; - }); -}); - -//basic extend functionality to facilitate -//writing your own cursor while still providing -//access to low level r/w functionality -Cursor.extend = function(C, proto) -{ - var parent = this; - - if (arguments.length === 1) - { - proto = C; - C = null; - } - - proto = proto || {}; - - C = C || function ctor(buffer) - { - if (!(this instanceof C)) - { - return new C(buffer); - } - - parent.call(this, buffer); - }; - - require('util').inherits(C, parent); - - C.extend = parent.extend; - C.define = parent.define; - - for (var i in proto) - { - C.define(i, proto[i]); - } - - return C; -}; - -Cursor.define = function(name, fn) -{ - var proto = this.prototype[name]; - - this.prototype[name] = proto && function() - { - this.__super = proto; - return fn.apply(this, arguments); - } || fn; -}; - -module.exports = Cursor; - -}).call(this,require("buffer").Buffer) -},{"buffer":146,"util":824}],245:[function(require,module,exports){ -'use strict'; - -exports.utils = require('./des/utils'); -exports.Cipher = require('./des/cipher'); -exports.DES = require('./des/des'); -exports.CBC = require('./des/cbc'); -exports.EDE = require('./des/ede'); - -},{"./des/cbc":246,"./des/cipher":247,"./des/des":248,"./des/ede":249,"./des/utils":250}],246:[function(require,module,exports){ -'use strict'; - -var assert = require('minimalistic-assert'); -var inherits = require('inherits'); - -var proto = {}; - -function CBCState(iv) { - assert.equal(iv.length, 8, 'Invalid IV length'); - - this.iv = new Array(8); - for (var i = 0; i < this.iv.length; i++) - this.iv[i] = iv[i]; -} - -function instantiate(Base) { - function CBC(options) { - Base.call(this, options); - this._cbcInit(); - } - inherits(CBC, Base); - - var keys = Object.keys(proto); - for (var i = 0; i < keys.length; i++) { - var key = keys[i]; - CBC.prototype[key] = proto[key]; - } - - CBC.create = function create(options) { - return new CBC(options); - }; - - return CBC; -} - -exports.instantiate = instantiate; - -proto._cbcInit = function _cbcInit() { - var state = new CBCState(this.options.iv); - this._cbcState = state; -}; - -proto._update = function _update(inp, inOff, out, outOff) { - var state = this._cbcState; - var superProto = this.constructor.super_.prototype; - - var iv = state.iv; - if (this.type === 'encrypt') { - for (var i = 0; i < this.blockSize; i++) - iv[i] ^= inp[inOff + i]; - - superProto._update.call(this, iv, 0, out, outOff); - - for (var i = 0; i < this.blockSize; i++) - iv[i] = out[outOff + i]; - } else { - superProto._update.call(this, inp, inOff, out, outOff); - - for (var i = 0; i < this.blockSize; i++) - out[outOff + i] ^= iv[i]; - - for (var i = 0; i < this.blockSize; i++) - iv[i] = inp[inOff + i]; - } -}; - -},{"inherits":396,"minimalistic-assert":640}],247:[function(require,module,exports){ -'use strict'; - -var assert = require('minimalistic-assert'); - -function Cipher(options) { - this.options = options; - - this.type = this.options.type; - this.blockSize = 8; - this._init(); - - this.buffer = new Array(this.blockSize); - this.bufferOff = 0; -} -module.exports = Cipher; - -Cipher.prototype._init = function _init() { - // Might be overrided -}; - -Cipher.prototype.update = function update(data) { - if (data.length === 0) - return []; - - if (this.type === 'decrypt') - return this._updateDecrypt(data); - else - return this._updateEncrypt(data); -}; - -Cipher.prototype._buffer = function _buffer(data, off) { - // Append data to buffer - var min = Math.min(this.buffer.length - this.bufferOff, data.length - off); - for (var i = 0; i < min; i++) - this.buffer[this.bufferOff + i] = data[off + i]; - this.bufferOff += min; - - // Shift next - return min; -}; - -Cipher.prototype._flushBuffer = function _flushBuffer(out, off) { - this._update(this.buffer, 0, out, off); - this.bufferOff = 0; - return this.blockSize; -}; - -Cipher.prototype._updateEncrypt = function _updateEncrypt(data) { - var inputOff = 0; - var outputOff = 0; - - var count = ((this.bufferOff + data.length) / this.blockSize) | 0; - var out = new Array(count * this.blockSize); - - if (this.bufferOff !== 0) { - inputOff += this._buffer(data, inputOff); - - if (this.bufferOff === this.buffer.length) - outputOff += this._flushBuffer(out, outputOff); - } - - // Write blocks - var max = data.length - ((data.length - inputOff) % this.blockSize); - for (; inputOff < max; inputOff += this.blockSize) { - this._update(data, inputOff, out, outputOff); - outputOff += this.blockSize; - } - - // Queue rest - for (; inputOff < data.length; inputOff++, this.bufferOff++) - this.buffer[this.bufferOff] = data[inputOff]; - - return out; -}; - -Cipher.prototype._updateDecrypt = function _updateDecrypt(data) { - var inputOff = 0; - var outputOff = 0; - - var count = Math.ceil((this.bufferOff + data.length) / this.blockSize) - 1; - var out = new Array(count * this.blockSize); - - // TODO(indutny): optimize it, this is far from optimal - for (; count > 0; count--) { - inputOff += this._buffer(data, inputOff); - outputOff += this._flushBuffer(out, outputOff); - } - - // Buffer rest of the input - inputOff += this._buffer(data, inputOff); - - return out; -}; - -Cipher.prototype.final = function final(buffer) { - var first; - if (buffer) - first = this.update(buffer); - - var last; - if (this.type === 'encrypt') - last = this._finalEncrypt(); - else - last = this._finalDecrypt(); - - if (first) - return first.concat(last); - else - return last; -}; - -Cipher.prototype._pad = function _pad(buffer, off) { - if (off === 0) - return false; - - while (off < buffer.length) - buffer[off++] = 0; - - return true; -}; - -Cipher.prototype._finalEncrypt = function _finalEncrypt() { - if (!this._pad(this.buffer, this.bufferOff)) - return []; - - var out = new Array(this.blockSize); - this._update(this.buffer, 0, out, 0); - return out; -}; - -Cipher.prototype._unpad = function _unpad(buffer) { - return buffer; -}; - -Cipher.prototype._finalDecrypt = function _finalDecrypt() { - assert.equal(this.bufferOff, this.blockSize, 'Not enough data to decrypt'); - var out = new Array(this.blockSize); - this._flushBuffer(out, 0); - - return this._unpad(out); -}; - -},{"minimalistic-assert":640}],248:[function(require,module,exports){ -'use strict'; - -var assert = require('minimalistic-assert'); -var inherits = require('inherits'); - -var utils = require('./utils'); -var Cipher = require('./cipher'); - -function DESState() { - this.tmp = new Array(2); - this.keys = null; -} - -function DES(options) { - Cipher.call(this, options); - - var state = new DESState(); - this._desState = state; - - this.deriveKeys(state, options.key); -} -inherits(DES, Cipher); -module.exports = DES; - -DES.create = function create(options) { - return new DES(options); -}; - -var shiftTable = [ - 1, 1, 2, 2, 2, 2, 2, 2, - 1, 2, 2, 2, 2, 2, 2, 1 -]; - -DES.prototype.deriveKeys = function deriveKeys(state, key) { - state.keys = new Array(16 * 2); - - assert.equal(key.length, this.blockSize, 'Invalid key length'); - - var kL = utils.readUInt32BE(key, 0); - var kR = utils.readUInt32BE(key, 4); - - utils.pc1(kL, kR, state.tmp, 0); - kL = state.tmp[0]; - kR = state.tmp[1]; - for (var i = 0; i < state.keys.length; i += 2) { - var shift = shiftTable[i >>> 1]; - kL = utils.r28shl(kL, shift); - kR = utils.r28shl(kR, shift); - utils.pc2(kL, kR, state.keys, i); - } -}; - -DES.prototype._update = function _update(inp, inOff, out, outOff) { - var state = this._desState; - - var l = utils.readUInt32BE(inp, inOff); - var r = utils.readUInt32BE(inp, inOff + 4); - - // Initial Permutation - utils.ip(l, r, state.tmp, 0); - l = state.tmp[0]; - r = state.tmp[1]; - - if (this.type === 'encrypt') - this._encrypt(state, l, r, state.tmp, 0); - else - this._decrypt(state, l, r, state.tmp, 0); - - l = state.tmp[0]; - r = state.tmp[1]; - - utils.writeUInt32BE(out, l, outOff); - utils.writeUInt32BE(out, r, outOff + 4); -}; - -DES.prototype._pad = function _pad(buffer, off) { - var value = buffer.length - off; - for (var i = off; i < buffer.length; i++) - buffer[i] = value; - - return true; -}; - -DES.prototype._unpad = function _unpad(buffer) { - var pad = buffer[buffer.length - 1]; - for (var i = buffer.length - pad; i < buffer.length; i++) - assert.equal(buffer[i], pad); - - return buffer.slice(0, buffer.length - pad); -}; - -DES.prototype._encrypt = function _encrypt(state, lStart, rStart, out, off) { - var l = lStart; - var r = rStart; - - // Apply f() x16 times - for (var i = 0; i < state.keys.length; i += 2) { - var keyL = state.keys[i]; - var keyR = state.keys[i + 1]; - - // f(r, k) - utils.expand(r, state.tmp, 0); - - keyL ^= state.tmp[0]; - keyR ^= state.tmp[1]; - var s = utils.substitute(keyL, keyR); - var f = utils.permute(s); - - var t = r; - r = (l ^ f) >>> 0; - l = t; - } - - // Reverse Initial Permutation - utils.rip(r, l, out, off); -}; - -DES.prototype._decrypt = function _decrypt(state, lStart, rStart, out, off) { - var l = rStart; - var r = lStart; - - // Apply f() x16 times - for (var i = state.keys.length - 2; i >= 0; i -= 2) { - var keyL = state.keys[i]; - var keyR = state.keys[i + 1]; - - // f(r, k) - utils.expand(l, state.tmp, 0); - - keyL ^= state.tmp[0]; - keyR ^= state.tmp[1]; - var s = utils.substitute(keyL, keyR); - var f = utils.permute(s); - - var t = l; - l = (r ^ f) >>> 0; - r = t; - } - - // Reverse Initial Permutation - utils.rip(l, r, out, off); -}; - -},{"./cipher":247,"./utils":250,"inherits":396,"minimalistic-assert":640}],249:[function(require,module,exports){ -'use strict'; - -var assert = require('minimalistic-assert'); -var inherits = require('inherits'); - -var Cipher = require('./cipher'); -var DES = require('./des'); - -function EDEState(type, key) { - assert.equal(key.length, 24, 'Invalid key length'); - - var k1 = key.slice(0, 8); - var k2 = key.slice(8, 16); - var k3 = key.slice(16, 24); - - if (type === 'encrypt') { - this.ciphers = [ - DES.create({ type: 'encrypt', key: k1 }), - DES.create({ type: 'decrypt', key: k2 }), - DES.create({ type: 'encrypt', key: k3 }) - ]; - } else { - this.ciphers = [ - DES.create({ type: 'decrypt', key: k3 }), - DES.create({ type: 'encrypt', key: k2 }), - DES.create({ type: 'decrypt', key: k1 }) - ]; - } -} - -function EDE(options) { - Cipher.call(this, options); - - var state = new EDEState(this.type, this.options.key); - this._edeState = state; -} -inherits(EDE, Cipher); - -module.exports = EDE; - -EDE.create = function create(options) { - return new EDE(options); -}; - -EDE.prototype._update = function _update(inp, inOff, out, outOff) { - var state = this._edeState; - - state.ciphers[0]._update(inp, inOff, out, outOff); - state.ciphers[1]._update(out, outOff, out, outOff); - state.ciphers[2]._update(out, outOff, out, outOff); -}; - -EDE.prototype._pad = DES.prototype._pad; -EDE.prototype._unpad = DES.prototype._unpad; - -},{"./cipher":247,"./des":248,"inherits":396,"minimalistic-assert":640}],250:[function(require,module,exports){ -'use strict'; - -exports.readUInt32BE = function readUInt32BE(bytes, off) { - var res = (bytes[0 + off] << 24) | - (bytes[1 + off] << 16) | - (bytes[2 + off] << 8) | - bytes[3 + off]; - return res >>> 0; -}; - -exports.writeUInt32BE = function writeUInt32BE(bytes, value, off) { - bytes[0 + off] = value >>> 24; - bytes[1 + off] = (value >>> 16) & 0xff; - bytes[2 + off] = (value >>> 8) & 0xff; - bytes[3 + off] = value & 0xff; -}; - -exports.ip = function ip(inL, inR, out, off) { - var outL = 0; - var outR = 0; - - for (var i = 6; i >= 0; i -= 2) { - for (var j = 0; j <= 24; j += 8) { - outL <<= 1; - outL |= (inR >>> (j + i)) & 1; - } - for (var j = 0; j <= 24; j += 8) { - outL <<= 1; - outL |= (inL >>> (j + i)) & 1; - } - } - - for (var i = 6; i >= 0; i -= 2) { - for (var j = 1; j <= 25; j += 8) { - outR <<= 1; - outR |= (inR >>> (j + i)) & 1; - } - for (var j = 1; j <= 25; j += 8) { - outR <<= 1; - outR |= (inL >>> (j + i)) & 1; - } - } - - out[off + 0] = outL >>> 0; - out[off + 1] = outR >>> 0; -}; - -exports.rip = function rip(inL, inR, out, off) { - var outL = 0; - var outR = 0; - - for (var i = 0; i < 4; i++) { - for (var j = 24; j >= 0; j -= 8) { - outL <<= 1; - outL |= (inR >>> (j + i)) & 1; - outL <<= 1; - outL |= (inL >>> (j + i)) & 1; - } - } - for (var i = 4; i < 8; i++) { - for (var j = 24; j >= 0; j -= 8) { - outR <<= 1; - outR |= (inR >>> (j + i)) & 1; - outR <<= 1; - outR |= (inL >>> (j + i)) & 1; - } - } - - out[off + 0] = outL >>> 0; - out[off + 1] = outR >>> 0; -}; - -exports.pc1 = function pc1(inL, inR, out, off) { - var outL = 0; - var outR = 0; - - // 7, 15, 23, 31, 39, 47, 55, 63 - // 6, 14, 22, 30, 39, 47, 55, 63 - // 5, 13, 21, 29, 39, 47, 55, 63 - // 4, 12, 20, 28 - for (var i = 7; i >= 5; i--) { - for (var j = 0; j <= 24; j += 8) { - outL <<= 1; - outL |= (inR >> (j + i)) & 1; - } - for (var j = 0; j <= 24; j += 8) { - outL <<= 1; - outL |= (inL >> (j + i)) & 1; - } - } - for (var j = 0; j <= 24; j += 8) { - outL <<= 1; - outL |= (inR >> (j + i)) & 1; - } - - // 1, 9, 17, 25, 33, 41, 49, 57 - // 2, 10, 18, 26, 34, 42, 50, 58 - // 3, 11, 19, 27, 35, 43, 51, 59 - // 36, 44, 52, 60 - for (var i = 1; i <= 3; i++) { - for (var j = 0; j <= 24; j += 8) { - outR <<= 1; - outR |= (inR >> (j + i)) & 1; - } - for (var j = 0; j <= 24; j += 8) { - outR <<= 1; - outR |= (inL >> (j + i)) & 1; - } - } - for (var j = 0; j <= 24; j += 8) { - outR <<= 1; - outR |= (inL >> (j + i)) & 1; - } - - out[off + 0] = outL >>> 0; - out[off + 1] = outR >>> 0; -}; - -exports.r28shl = function r28shl(num, shift) { - return ((num << shift) & 0xfffffff) | (num >>> (28 - shift)); -}; - -var pc2table = [ - // inL => outL - 14, 11, 17, 4, 27, 23, 25, 0, - 13, 22, 7, 18, 5, 9, 16, 24, - 2, 20, 12, 21, 1, 8, 15, 26, - - // inR => outR - 15, 4, 25, 19, 9, 1, 26, 16, - 5, 11, 23, 8, 12, 7, 17, 0, - 22, 3, 10, 14, 6, 20, 27, 24 -]; - -exports.pc2 = function pc2(inL, inR, out, off) { - var outL = 0; - var outR = 0; - - var len = pc2table.length >>> 1; - for (var i = 0; i < len; i++) { - outL <<= 1; - outL |= (inL >>> pc2table[i]) & 0x1; - } - for (var i = len; i < pc2table.length; i++) { - outR <<= 1; - outR |= (inR >>> pc2table[i]) & 0x1; - } - - out[off + 0] = outL >>> 0; - out[off + 1] = outR >>> 0; -}; - -exports.expand = function expand(r, out, off) { - var outL = 0; - var outR = 0; - - outL = ((r & 1) << 5) | (r >>> 27); - for (var i = 23; i >= 15; i -= 4) { - outL <<= 6; - outL |= (r >>> i) & 0x3f; - } - for (var i = 11; i >= 3; i -= 4) { - outR |= (r >>> i) & 0x3f; - outR <<= 6; - } - outR |= ((r & 0x1f) << 1) | (r >>> 31); - - out[off + 0] = outL >>> 0; - out[off + 1] = outR >>> 0; -}; - -var sTable = [ - 14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1, - 3, 10, 10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8, - 4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7, - 15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13, - - 15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14, - 9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5, - 0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2, - 5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9, - - 10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10, - 1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1, - 13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7, - 11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12, - - 7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3, - 1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9, - 10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8, - 15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14, - - 2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1, - 8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6, - 4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13, - 15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3, - - 12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5, - 0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8, - 9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10, - 7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13, - - 4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10, - 3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6, - 1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7, - 10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12, - - 13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4, - 10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2, - 7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13, - 0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11 -]; - -exports.substitute = function substitute(inL, inR) { - var out = 0; - for (var i = 0; i < 4; i++) { - var b = (inL >>> (18 - i * 6)) & 0x3f; - var sb = sTable[i * 0x40 + b]; - - out <<= 4; - out |= sb; - } - for (var i = 0; i < 4; i++) { - var b = (inR >>> (18 - i * 6)) & 0x3f; - var sb = sTable[4 * 0x40 + i * 0x40 + b]; - - out <<= 4; - out |= sb; - } - return out >>> 0; -}; - -var permuteTable = [ - 16, 25, 12, 11, 3, 20, 4, 15, 31, 17, 9, 6, 27, 14, 1, 22, - 30, 24, 8, 18, 0, 5, 29, 23, 13, 19, 2, 26, 10, 21, 28, 7 -]; - -exports.permute = function permute(num) { - var out = 0; - for (var i = 0; i < permuteTable.length; i++) { - out <<= 1; - out |= (num >>> permuteTable[i]) & 0x1; - } - return out >>> 0; -}; - -exports.padSplit = function padSplit(num, size, group) { - var str = num.toString(2); - while (str.length < size) - str = '0' + str; - - var out = []; - for (var i = 0; i < size; i += group) - out.push(str.slice(i, i + group)); - return out.join(' '); -}; - -},{}],251:[function(require,module,exports){ -(function (Buffer){ -var generatePrime = require('./lib/generatePrime') -var primes = require('./lib/primes.json') - -var DH = require('./lib/dh') - -function getDiffieHellman (mod) { - var prime = new Buffer(primes[mod].prime, 'hex') - var gen = new Buffer(primes[mod].gen, 'hex') - - return new DH(prime, gen) -} - -var ENCODINGS = { - 'binary': true, 'hex': true, 'base64': true -} - -function createDiffieHellman (prime, enc, generator, genc) { - if (Buffer.isBuffer(enc) || ENCODINGS[enc] === undefined) { - return createDiffieHellman(prime, 'binary', enc, generator) - } - - enc = enc || 'binary' - genc = genc || 'binary' - generator = generator || new Buffer([2]) - - if (!Buffer.isBuffer(generator)) { - generator = new Buffer(generator, genc) - } - - if (typeof prime === 'number') { - return new DH(generatePrime(prime, generator), generator, true) - } - - if (!Buffer.isBuffer(prime)) { - prime = new Buffer(prime, enc) - } - - return new DH(prime, generator, true) -} - -exports.DiffieHellmanGroup = exports.createDiffieHellmanGroup = exports.getDiffieHellman = getDiffieHellman -exports.createDiffieHellman = exports.DiffieHellman = createDiffieHellman - -}).call(this,require("buffer").Buffer) -},{"./lib/dh":252,"./lib/generatePrime":253,"./lib/primes.json":254,"buffer":146}],252:[function(require,module,exports){ -(function (Buffer){ -var BN = require('bn.js'); -var MillerRabin = require('miller-rabin'); -var millerRabin = new MillerRabin(); -var TWENTYFOUR = new BN(24); -var ELEVEN = new BN(11); -var TEN = new BN(10); -var THREE = new BN(3); -var SEVEN = new BN(7); -var primes = require('./generatePrime'); -var randomBytes = require('randombytes'); -module.exports = DH; - -function setPublicKey(pub, enc) { - enc = enc || 'utf8'; - if (!Buffer.isBuffer(pub)) { - pub = new Buffer(pub, enc); - } - this._pub = new BN(pub); - return this; -} - -function setPrivateKey(priv, enc) { - enc = enc || 'utf8'; - if (!Buffer.isBuffer(priv)) { - priv = new Buffer(priv, enc); - } - this._priv = new BN(priv); - return this; -} - -var primeCache = {}; -function checkPrime(prime, generator) { - var gen = generator.toString('hex'); - var hex = [gen, prime.toString(16)].join('_'); - if (hex in primeCache) { - return primeCache[hex]; - } - var error = 0; - - if (prime.isEven() || - !primes.simpleSieve || - !primes.fermatTest(prime) || - !millerRabin.test(prime)) { - //not a prime so +1 - error += 1; - - if (gen === '02' || gen === '05') { - // we'd be able to check the generator - // it would fail so +8 - error += 8; - } else { - //we wouldn't be able to test the generator - // so +4 - error += 4; - } - primeCache[hex] = error; - return error; - } - if (!millerRabin.test(prime.shrn(1))) { - //not a safe prime - error += 2; - } - var rem; - switch (gen) { - case '02': - if (prime.mod(TWENTYFOUR).cmp(ELEVEN)) { - // unsuidable generator - error += 8; - } - break; - case '05': - rem = prime.mod(TEN); - if (rem.cmp(THREE) && rem.cmp(SEVEN)) { - // prime mod 10 needs to equal 3 or 7 - error += 8; - } - break; - default: - error += 4; - } - primeCache[hex] = error; - return error; -} - -function DH(prime, generator, malleable) { - this.setGenerator(generator); - this.__prime = new BN(prime); - this._prime = BN.mont(this.__prime); - this._primeLen = prime.length; - this._pub = undefined; - this._priv = undefined; - this._primeCode = undefined; - if (malleable) { - this.setPublicKey = setPublicKey; - this.setPrivateKey = setPrivateKey; - } else { - this._primeCode = 8; - } -} -Object.defineProperty(DH.prototype, 'verifyError', { - enumerable: true, - get: function () { - if (typeof this._primeCode !== 'number') { - this._primeCode = checkPrime(this.__prime, this.__gen); - } - return this._primeCode; - } -}); -DH.prototype.generateKeys = function () { - if (!this._priv) { - this._priv = new BN(randomBytes(this._primeLen)); - } - this._pub = this._gen.toRed(this._prime).redPow(this._priv).fromRed(); - return this.getPublicKey(); -}; - -DH.prototype.computeSecret = function (other) { - other = new BN(other); - other = other.toRed(this._prime); - var secret = other.redPow(this._priv).fromRed(); - var out = new Buffer(secret.toArray()); - var prime = this.getPrime(); - if (out.length < prime.length) { - var front = new Buffer(prime.length - out.length); - front.fill(0); - out = Buffer.concat([front, out]); - } - return out; -}; - -DH.prototype.getPublicKey = function getPublicKey(enc) { - return formatReturnValue(this._pub, enc); -}; - -DH.prototype.getPrivateKey = function getPrivateKey(enc) { - return formatReturnValue(this._priv, enc); -}; - -DH.prototype.getPrime = function (enc) { - return formatReturnValue(this.__prime, enc); -}; - -DH.prototype.getGenerator = function (enc) { - return formatReturnValue(this._gen, enc); -}; - -DH.prototype.setGenerator = function (gen, enc) { - enc = enc || 'utf8'; - if (!Buffer.isBuffer(gen)) { - gen = new Buffer(gen, enc); - } - this.__gen = gen; - this._gen = new BN(gen); - return this; -}; - -function formatReturnValue(bn, enc) { - var buf = new Buffer(bn.toArray()); - if (!enc) { - return buf; - } else { - return buf.toString(enc); - } -} - -}).call(this,require("buffer").Buffer) -},{"./generatePrime":253,"bn.js":108,"buffer":146,"miller-rabin":639,"randombytes":724}],253:[function(require,module,exports){ -var randomBytes = require('randombytes'); -module.exports = findPrime; -findPrime.simpleSieve = simpleSieve; -findPrime.fermatTest = fermatTest; -var BN = require('bn.js'); -var TWENTYFOUR = new BN(24); -var MillerRabin = require('miller-rabin'); -var millerRabin = new MillerRabin(); -var ONE = new BN(1); -var TWO = new BN(2); -var FIVE = new BN(5); -var SIXTEEN = new BN(16); -var EIGHT = new BN(8); -var TEN = new BN(10); -var THREE = new BN(3); -var SEVEN = new BN(7); -var ELEVEN = new BN(11); -var FOUR = new BN(4); -var TWELVE = new BN(12); -var primes = null; - -function _getPrimes() { - if (primes !== null) - return primes; - - var limit = 0x100000; - var res = []; - res[0] = 2; - for (var i = 1, k = 3; k < limit; k += 2) { - var sqrt = Math.ceil(Math.sqrt(k)); - for (var j = 0; j < i && res[j] <= sqrt; j++) - if (k % res[j] === 0) - break; - - if (i !== j && res[j] <= sqrt) - continue; - - res[i++] = k; - } - primes = res; - return res; -} - -function simpleSieve(p) { - var primes = _getPrimes(); - - for (var i = 0; i < primes.length; i++) - if (p.modn(primes[i]) === 0) { - if (p.cmpn(primes[i]) === 0) { - return true; - } else { - return false; - } - } - - return true; -} - -function fermatTest(p) { - var red = BN.mont(p); - return TWO.toRed(red).redPow(p.subn(1)).fromRed().cmpn(1) === 0; -} - -function findPrime(bits, gen) { - if (bits < 16) { - // this is what openssl does - if (gen === 2 || gen === 5) { - return new BN([0x8c, 0x7b]); - } else { - return new BN([0x8c, 0x27]); - } - } - gen = new BN(gen); - - var num, n2; - - while (true) { - num = new BN(randomBytes(Math.ceil(bits / 8))); - while (num.bitLength() > bits) { - num.ishrn(1); - } - if (num.isEven()) { - num.iadd(ONE); - } - if (!num.testn(1)) { - num.iadd(TWO); - } - if (!gen.cmp(TWO)) { - while (num.mod(TWENTYFOUR).cmp(ELEVEN)) { - num.iadd(FOUR); - } - } else if (!gen.cmp(FIVE)) { - while (num.mod(TEN).cmp(THREE)) { - num.iadd(FOUR); - } - } - n2 = num.shrn(1); - if (simpleSieve(n2) && simpleSieve(num) && - fermatTest(n2) && fermatTest(num) && - millerRabin.test(n2) && millerRabin.test(num)) { - return num; - } - } - -} - -},{"bn.js":108,"miller-rabin":639,"randombytes":724}],254:[function(require,module,exports){ -module.exports={ - "modp1": { - "gen": "02", - "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a63a3620ffffffffffffffff" - }, - "modp2": { - "gen": "02", - "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece65381ffffffffffffffff" - }, - "modp5": { - "gen": "02", - "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca237327ffffffffffffffff" - }, - "modp14": { - "gen": "02", - "prime": "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" - }, - "modp15": { - "gen": "02", - "prime": "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" - }, - "modp16": { - "gen": "02", - "prime": "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" - }, - "modp17": { - "gen": "02", - "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca18217c32905e462e36ce3be39e772c180e86039b2783a2ec07a28fb5c55df06f4c52c9de2bcbf6955817183995497cea956ae515d2261898fa051015728e5a8aaac42dad33170d04507a33a85521abdf1cba64ecfb850458dbef0a8aea71575d060c7db3970f85a6e1e4c7abf5ae8cdb0933d71e8c94e04a25619dcee3d2261ad2ee6bf12ffa06d98a0864d87602733ec86a64521f2b18177b200cbbe117577a615d6c770988c0bad946e208e24fa074e5ab3143db5bfce0fd108e4b82d120a92108011a723c12a787e6d788719a10bdba5b2699c327186af4e23c1a946834b6150bda2583e9ca2ad44ce8dbbbc2db04de8ef92e8efc141fbecaa6287c59474e6bc05d99b2964fa090c3a2233ba186515be7ed1f612970cee2d7afb81bdd762170481cd0069127d5b05aa993b4ea988d8fddc186ffb7dc90a6c08f4df435c93402849236c3fab4d27c7026c1d4dcb2602646dec9751e763dba37bdf8ff9406ad9e530ee5db382f413001aeb06a53ed9027d831179727b0865a8918da3edbebcf9b14ed44ce6cbaced4bb1bdb7f1447e6cc254b332051512bd7af426fb8f401378cd2bf5983ca01c64b92ecf032ea15d1721d03f482d7ce6e74fef6d55e702f46980c82b5a84031900b1c9e59e7c97fbec7e8f323a97a7e36cc88be0f1d45b7ff585ac54bd407b22b4154aacc8f6d7ebf48e1d814cc5ed20f8037e0a79715eef29be32806a1d58bb7c5da76f550aa3d8a1fbff0eb19ccb1a313d55cda56c9ec2ef29632387fe8d76e3c0468043e8f663f4860ee12bf2d5b0b7474d6e694f91e6dcc4024ffffffffffffffff" - }, - "modp18": { - "gen": "02", - "prime": "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" - } -} -},{}],255:[function(require,module,exports){ -var assert = require('assert') -var BigInteger = require('bigi') - -var Point = require('./point') - -function Curve (p, a, b, Gx, Gy, n, h) { - this.p = p - this.a = a - this.b = b - this.G = Point.fromAffine(this, Gx, Gy) - this.n = n - this.h = h - - this.infinity = new Point(this, null, null, BigInteger.ZERO) - - // result caching - this.pOverFour = p.add(BigInteger.ONE).shiftRight(2) - - // determine size of p in bytes - this.pLength = Math.floor((this.p.bitLength() + 7) / 8) -} - -Curve.prototype.pointFromX = function (isOdd, x) { - var alpha = x.pow(3).add(this.a.multiply(x)).add(this.b).mod(this.p) - var beta = alpha.modPow(this.pOverFour, this.p) // XXX: not compatible with all curves - - var y = beta - if (beta.isEven() ^ !isOdd) { - y = this.p.subtract(y) // -y % p - } - - return Point.fromAffine(this, x, y) -} - -Curve.prototype.isInfinity = function (Q) { - if (Q === this.infinity) return true - - return Q.z.signum() === 0 && Q.y.signum() !== 0 -} - -Curve.prototype.isOnCurve = function (Q) { - if (this.isInfinity(Q)) return true - - var x = Q.affineX - var y = Q.affineY - var a = this.a - var b = this.b - var p = this.p - - // Check that xQ and yQ are integers in the interval [0, p - 1] - if (x.signum() < 0 || x.compareTo(p) >= 0) return false - if (y.signum() < 0 || y.compareTo(p) >= 0) return false - - // and check that y^2 = x^3 + ax + b (mod p) - var lhs = y.square().mod(p) - var rhs = x.pow(3).add(a.multiply(x)).add(b).mod(p) - return lhs.equals(rhs) -} - -/** - * Validate an elliptic curve point. - * - * See SEC 1, section 3.2.2.1: Elliptic Curve Public Key Validation Primitive - */ -Curve.prototype.validate = function (Q) { - // Check Q != O - assert(!this.isInfinity(Q), 'Point is at infinity') - assert(this.isOnCurve(Q), 'Point is not on the curve') - - // Check nQ = O (where Q is a scalar multiple of G) - var nQ = Q.multiply(this.n) - assert(this.isInfinity(nQ), 'Point is not a scalar multiple of G') - - return true -} - -module.exports = Curve - -},{"./point":259,"assert":26,"bigi":63}],256:[function(require,module,exports){ -module.exports={ - "secp128r1": { - "p": "fffffffdffffffffffffffffffffffff", - "a": "fffffffdfffffffffffffffffffffffc", - "b": "e87579c11079f43dd824993c2cee5ed3", - "n": "fffffffe0000000075a30d1b9038a115", - "h": "01", - "Gx": "161ff7528b899b2d0c28607ca52c5b86", - "Gy": "cf5ac8395bafeb13c02da292dded7a83" - }, - "secp160k1": { - "p": "fffffffffffffffffffffffffffffffeffffac73", - "a": "00", - "b": "07", - "n": "0100000000000000000001b8fa16dfab9aca16b6b3", - "h": "01", - "Gx": "3b4c382ce37aa192a4019e763036f4f5dd4d7ebb", - "Gy": "938cf935318fdced6bc28286531733c3f03c4fee" - }, - "secp160r1": { - "p": "ffffffffffffffffffffffffffffffff7fffffff", - "a": "ffffffffffffffffffffffffffffffff7ffffffc", - "b": "1c97befc54bd7a8b65acf89f81d4d4adc565fa45", - "n": "0100000000000000000001f4c8f927aed3ca752257", - "h": "01", - "Gx": "4a96b5688ef573284664698968c38bb913cbfc82", - "Gy": "23a628553168947d59dcc912042351377ac5fb32" - }, - "secp192k1": { - "p": "fffffffffffffffffffffffffffffffffffffffeffffee37", - "a": "00", - "b": "03", - "n": "fffffffffffffffffffffffe26f2fc170f69466a74defd8d", - "h": "01", - "Gx": "db4ff10ec057e9ae26b07d0280b7f4341da5d1b1eae06c7d", - "Gy": "9b2f2f6d9c5628a7844163d015be86344082aa88d95e2f9d" - }, - "secp192r1": { - "p": "fffffffffffffffffffffffffffffffeffffffffffffffff", - "a": "fffffffffffffffffffffffffffffffefffffffffffffffc", - "b": "64210519e59c80e70fa7e9ab72243049feb8deecc146b9b1", - "n": "ffffffffffffffffffffffff99def836146bc9b1b4d22831", - "h": "01", - "Gx": "188da80eb03090f67cbf20eb43a18800f4ff0afd82ff1012", - "Gy": "07192b95ffc8da78631011ed6b24cdd573f977a11e794811" - }, - "secp256k1": { - "p": "fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f", - "a": "00", - "b": "07", - "n": "fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141", - "h": "01", - "Gx": "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798", - "Gy": "483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8" - }, - "secp256r1": { - "p": "ffffffff00000001000000000000000000000000ffffffffffffffffffffffff", - "a": "ffffffff00000001000000000000000000000000fffffffffffffffffffffffc", - "b": "5ac635d8aa3a93e7b3ebbd55769886bc651d06b0cc53b0f63bce3c3e27d2604b", - "n": "ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551", - "h": "01", - "Gx": "6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296", - "Gy": "4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5" - } -} - -},{}],257:[function(require,module,exports){ -var Point = require('./point') -var Curve = require('./curve') - -var getCurveByName = require('./names') - -module.exports = { - Curve: Curve, - Point: Point, - getCurveByName: getCurveByName -} - -},{"./curve":255,"./names":258,"./point":259}],258:[function(require,module,exports){ -var BigInteger = require('bigi') - -var curves = require('./curves.json') -var Curve = require('./curve') - -function getCurveByName (name) { - var curve = curves[name] - if (!curve) return null - - var p = new BigInteger(curve.p, 16) - var a = new BigInteger(curve.a, 16) - var b = new BigInteger(curve.b, 16) - var n = new BigInteger(curve.n, 16) - var h = new BigInteger(curve.h, 16) - var Gx = new BigInteger(curve.Gx, 16) - var Gy = new BigInteger(curve.Gy, 16) - - return new Curve(p, a, b, Gx, Gy, n, h) -} - -module.exports = getCurveByName - -},{"./curve":255,"./curves.json":256,"bigi":63}],259:[function(require,module,exports){ -var assert = require('assert') -var Buffer = require('safe-buffer').Buffer -var BigInteger = require('bigi') - -var THREE = BigInteger.valueOf(3) - -function Point (curve, x, y, z) { - assert.notStrictEqual(z, undefined, 'Missing Z coordinate') - - this.curve = curve - this.x = x - this.y = y - this.z = z - this._zInv = null - - this.compressed = true -} - -Object.defineProperty(Point.prototype, 'zInv', { - get: function () { - if (this._zInv === null) { - this._zInv = this.z.modInverse(this.curve.p) - } - - return this._zInv - } -}) - -Object.defineProperty(Point.prototype, 'affineX', { - get: function () { - return this.x.multiply(this.zInv).mod(this.curve.p) - } -}) - -Object.defineProperty(Point.prototype, 'affineY', { - get: function () { - return this.y.multiply(this.zInv).mod(this.curve.p) - } -}) - -Point.fromAffine = function (curve, x, y) { - return new Point(curve, x, y, BigInteger.ONE) -} - -Point.prototype.equals = function (other) { - if (other === this) return true - if (this.curve.isInfinity(this)) return this.curve.isInfinity(other) - if (this.curve.isInfinity(other)) return this.curve.isInfinity(this) - - // u = Y2 * Z1 - Y1 * Z2 - var u = other.y.multiply(this.z).subtract(this.y.multiply(other.z)).mod(this.curve.p) - - if (u.signum() !== 0) return false - - // v = X2 * Z1 - X1 * Z2 - var v = other.x.multiply(this.z).subtract(this.x.multiply(other.z)).mod(this.curve.p) - - return v.signum() === 0 -} - -Point.prototype.negate = function () { - var y = this.curve.p.subtract(this.y) - - return new Point(this.curve, this.x, y, this.z) -} - -Point.prototype.add = function (b) { - if (this.curve.isInfinity(this)) return b - if (this.curve.isInfinity(b)) return this - - var x1 = this.x - var y1 = this.y - var x2 = b.x - var y2 = b.y - - // u = Y2 * Z1 - Y1 * Z2 - var u = y2.multiply(this.z).subtract(y1.multiply(b.z)).mod(this.curve.p) - // v = X2 * Z1 - X1 * Z2 - var v = x2.multiply(this.z).subtract(x1.multiply(b.z)).mod(this.curve.p) - - if (v.signum() === 0) { - if (u.signum() === 0) { - return this.twice() // this == b, so double - } - - return this.curve.infinity // this = -b, so infinity - } - - var v2 = v.square() - var v3 = v2.multiply(v) - var x1v2 = x1.multiply(v2) - var zu2 = u.square().multiply(this.z) - - // x3 = v * (z2 * (z1 * u^2 - 2 * x1 * v^2) - v^3) - var x3 = zu2.subtract(x1v2.shiftLeft(1)).multiply(b.z).subtract(v3).multiply(v).mod(this.curve.p) - // y3 = z2 * (3 * x1 * u * v^2 - y1 * v^3 - z1 * u^3) + u * v^3 - var y3 = x1v2.multiply(THREE).multiply(u).subtract(y1.multiply(v3)).subtract(zu2.multiply(u)).multiply(b.z).add(u.multiply(v3)).mod(this.curve.p) - // z3 = v^3 * z1 * z2 - var z3 = v3.multiply(this.z).multiply(b.z).mod(this.curve.p) - - return new Point(this.curve, x3, y3, z3) -} - -Point.prototype.twice = function () { - if (this.curve.isInfinity(this)) return this - if (this.y.signum() === 0) return this.curve.infinity - - var x1 = this.x - var y1 = this.y - - var y1z1 = y1.multiply(this.z).mod(this.curve.p) - var y1sqz1 = y1z1.multiply(y1).mod(this.curve.p) - var a = this.curve.a - - // w = 3 * x1^2 + a * z1^2 - var w = x1.square().multiply(THREE) - - if (a.signum() !== 0) { - w = w.add(this.z.square().multiply(a)) - } - - w = w.mod(this.curve.p) - // x3 = 2 * y1 * z1 * (w^2 - 8 * x1 * y1^2 * z1) - var x3 = w.square().subtract(x1.shiftLeft(3).multiply(y1sqz1)).shiftLeft(1).multiply(y1z1).mod(this.curve.p) - // y3 = 4 * y1^2 * z1 * (3 * w * x1 - 2 * y1^2 * z1) - w^3 - var y3 = w.multiply(THREE).multiply(x1).subtract(y1sqz1.shiftLeft(1)).shiftLeft(2).multiply(y1sqz1).subtract(w.pow(3)).mod(this.curve.p) - // z3 = 8 * (y1 * z1)^3 - var z3 = y1z1.pow(3).shiftLeft(3).mod(this.curve.p) - - return new Point(this.curve, x3, y3, z3) -} - -// Simple NAF (Non-Adjacent Form) multiplication algorithm -// TODO: modularize the multiplication algorithm -Point.prototype.multiply = function (k) { - if (this.curve.isInfinity(this)) return this - if (k.signum() === 0) return this.curve.infinity - - var e = k - var h = e.multiply(THREE) - - var neg = this.negate() - var R = this - - for (var i = h.bitLength() - 2; i > 0; --i) { - var hBit = h.testBit(i) - var eBit = e.testBit(i) - - R = R.twice() - - if (hBit !== eBit) { - R = R.add(hBit ? this : neg) - } - } - - return R -} - -// Compute this*j + x*k (simultaneous multiplication) -Point.prototype.multiplyTwo = function (j, x, k) { - var i = Math.max(j.bitLength(), k.bitLength()) - 1 - var R = this.curve.infinity - var both = this.add(x) - - while (i >= 0) { - var jBit = j.testBit(i) - var kBit = k.testBit(i) - - R = R.twice() - - if (jBit) { - if (kBit) { - R = R.add(both) - } else { - R = R.add(this) - } - } else if (kBit) { - R = R.add(x) - } - --i - } - - return R -} - -Point.prototype.getEncoded = function (compressed) { - if (compressed == null) compressed = this.compressed - if (this.curve.isInfinity(this)) return Buffer.alloc(1, 0) // Infinity point encoded is simply '00' - - var x = this.affineX - var y = this.affineY - var byteLength = this.curve.pLength - var buffer - - // 0x02/0x03 | X - if (compressed) { - buffer = Buffer.allocUnsafe(1 + byteLength) - buffer.writeUInt8(y.isEven() ? 0x02 : 0x03, 0) - - // 0x04 | X | Y - } else { - buffer = Buffer.allocUnsafe(1 + byteLength + byteLength) - buffer.writeUInt8(0x04, 0) - - y.toBuffer(byteLength).copy(buffer, 1 + byteLength) - } - - x.toBuffer(byteLength).copy(buffer, 1) - - return buffer -} - -Point.decodeFrom = function (curve, buffer) { - var type = buffer.readUInt8(0) - var compressed = (type !== 4) - - var byteLength = Math.floor((curve.p.bitLength() + 7) / 8) - var x = BigInteger.fromBuffer(buffer.slice(1, 1 + byteLength)) - - var Q - if (compressed) { - assert.equal(buffer.length, byteLength + 1, 'Invalid sequence length') - assert(type === 0x02 || type === 0x03, 'Invalid sequence tag') - - var isOdd = (type === 0x03) - Q = curve.pointFromX(isOdd, x) - } else { - assert.equal(buffer.length, 1 + byteLength + byteLength, 'Invalid sequence length') - - var y = BigInteger.fromBuffer(buffer.slice(1 + byteLength)) - Q = Point.fromAffine(curve, x, y) - } - - Q.compressed = compressed - return Q -} - -Point.prototype.toString = function () { - if (this.curve.isInfinity(this)) return '(INFINITY)' - - return '(' + this.affineX.toString() + ',' + this.affineY.toString() + ')' -} - -module.exports = Point - -},{"assert":26,"bigi":63,"safe-buffer":742}],260:[function(require,module,exports){ -(function (Buffer){ -"use strict"; -Object.defineProperty(exports, "__esModule", { value: true }); -const createHmac = require("create-hmac"); -const nacl = require("tweetnacl"); -const utils_1 = require("./utils"); -const ED25519_CURVE = 'ed25519 seed'; -const HARDENED_OFFSET = 0x80000000; -exports.getMasterKeyFromSeed = (seed) => { - const hmac = createHmac('sha512', ED25519_CURVE); - const I = hmac.update(Buffer.from(seed, 'hex')).digest(); - const IL = I.slice(0, 32); - const IR = I.slice(32); - return { - key: IL, - chainCode: IR, - }; -}; -const CKDPriv = ({ key, chainCode }, index) => { - const indexBuffer = Buffer.allocUnsafe(4); - indexBuffer.writeUInt32BE(index, 0); - const data = Buffer.concat([Buffer.alloc(1, 0), key, indexBuffer]); - const I = createHmac('sha512', chainCode) - .update(data) - .digest(); - const IL = I.slice(0, 32); - const IR = I.slice(32); - return { - key: IL, - chainCode: IR, - }; -}; -exports.getPublicKey = (privateKey, withZeroByte = true) => { - const keyPair = nacl.sign.keyPair.fromSeed(privateKey); - const signPk = keyPair.secretKey.subarray(32); - const zero = Buffer.alloc(1, 0); - return withZeroByte ? - Buffer.concat([zero, Buffer.from(signPk)]) : - Buffer.from(signPk); -}; -exports.isValidPath = (path) => { - if (!utils_1.pathRegex.test(path)) { - return false; - } - return !path - .split('/') - .slice(1) - .map(utils_1.replaceDerive) - .some(isNaN); -}; -exports.derivePath = (path, seed) => { - if (!exports.isValidPath(path)) { - throw new Error('Invalid derivation path'); - } - const { key, chainCode } = exports.getMasterKeyFromSeed(seed); - const segments = path - .split('/') - .slice(1) - .map(utils_1.replaceDerive) - .map(el => parseInt(el, 10)); - return segments.reduce((parentKeys, segment) => CKDPriv(parentKeys, segment + HARDENED_OFFSET), { key, chainCode }); -}; - -}).call(this,require("buffer").Buffer) -},{"./utils":261,"buffer":146,"create-hmac":262,"tweetnacl":813}],261:[function(require,module,exports){ -"use strict"; -Object.defineProperty(exports, "__esModule", { value: true }); -exports.pathRegex = new RegExp("^m(\\/[0-9]+')+$"); -exports.replaceDerive = (val) => val.replace("'", ''); - -},{}],262:[function(require,module,exports){ -arguments[4][241][0].apply(exports,arguments) -},{"./legacy":263,"cipher-base":155,"create-hash/md5":240,"dup":241,"inherits":396,"ripemd160":740,"safe-buffer":742,"sha.js":770}],263:[function(require,module,exports){ -arguments[4][242][0].apply(exports,arguments) -},{"cipher-base":155,"dup":242,"inherits":396,"safe-buffer":742}],264:[function(require,module,exports){ -//const { generateMnemonic, getSeedFromMnemonic } = require('./src/Mnemonic') -const { getMultiSignAddress, getAddress, getDid } = require('./src/Address') -//const Transaction = require('./src/Transaction') -const { - getMasterPrivateKey, - getMasterPublicKey, - getBip32ExtendedPrivateKey, - getBip32ExtendedPublicKey, - getAccountExtendedPrivateKey, - getAccountExtendedPublicKey, - getDerivedPrivateKey, - getDerivedPublicKey, - getSinglePrivateKey, - getSinglePublicKey, - getPublicKeyFromPrivateKey, - generateSubPrivateKey, - generateSubPublicKey, - getIdChainMasterPublicKey, - generateIdChainSubPrivateKey, - generateIdChainSubPublicKey, - sign, - verify, -} = require('./src/Api') - -module.exports = { - //generateMnemonic, - //getSeedFromMnemonic, - getMultiSignAddress, - getAddress, - getDid, - getMasterPrivateKey, - getMasterPublicKey, - getBip32ExtendedPrivateKey, - getBip32ExtendedPublicKey, - getAccountExtendedPrivateKey, - getAccountExtendedPublicKey, - getDerivedPrivateKey, - getDerivedPublicKey, - getSinglePrivateKey, - getSinglePublicKey, - getPublicKeyFromPrivateKey, - generateSubPrivateKey, - generateSubPublicKey, - getIdChainMasterPublicKey, - generateIdChainSubPrivateKey, - generateIdChainSubPublicKey, - sign, - verify, - //Transaction, -} - -},{"./src/Address":314,"./src/Api":315}],265:[function(require,module,exports){ -(function (global,Buffer){ -'use strict'; - -var bitcore = module.exports; - -// module information -bitcore.version = 'v' + require('./package.json').version; -bitcore.versionGuard = function(version) { - if (version !== undefined) { - var message = 'More than one instance of bitcore-lib found. ' + - 'Please make sure to require bitcore-lib and check that submodules do' + - ' not also include their own bitcore-lib dependency.'; - throw new Error(message); - } -}; -bitcore.versionGuard(global._bitcore); -global._bitcore = bitcore.version; - -// crypto -bitcore.crypto = {}; -bitcore.crypto.BN = require('./lib/crypto/bn'); -bitcore.crypto.ECDSA = require('./lib/crypto/ecdsa'); -bitcore.crypto.Hash = require('./lib/crypto/hash'); -bitcore.crypto.Random = require('./lib/crypto/random'); -bitcore.crypto.Point = require('./lib/crypto/point'); -bitcore.crypto.Signature = require('./lib/crypto/signature'); - -// encoding -bitcore.encoding = {}; -bitcore.encoding.Base58 = require('./lib/encoding/base58'); -bitcore.encoding.Base58Check = require('./lib/encoding/base58check'); -bitcore.encoding.BufferReader = require('./lib/encoding/bufferreader'); -bitcore.encoding.BufferWriter = require('./lib/encoding/bufferwriter'); -bitcore.encoding.Varint = require('./lib/encoding/varint'); - -// utilities -bitcore.util = {}; -bitcore.util.buffer = require('./lib/util/buffer'); -bitcore.util.js = require('./lib/util/js'); -bitcore.util.preconditions = require('./lib/util/preconditions'); - -// errors thrown by the library -bitcore.errors = require('./lib/errors'); - -// main bitcoin library -bitcore.Address = require('./lib/address'); -bitcore.Block = require('./lib/block'); -bitcore.MerkleBlock = require('./lib/block/merkleblock'); -bitcore.BlockHeader = require('./lib/block/blockheader'); -bitcore.HDPrivateKey = require('./lib/hdprivatekey.js'); -bitcore.HDPublicKey = require('./lib/hdpublickey.js'); -bitcore.Networks = require('./lib/networks'); -bitcore.Opcode = require('./lib/opcode'); -bitcore.PrivateKey = require('./lib/privatekey'); -bitcore.PublicKey = require('./lib/publickey'); -bitcore.Script = require('./lib/script'); -bitcore.Transaction = require('./lib/transaction'); -bitcore.URI = require('./lib/uri'); -bitcore.Unit = require('./lib/unit'); - -// dependencies, subject to change -bitcore.deps = {}; -bitcore.deps.bnjs = require('bn.js'); -bitcore.deps.bs58 = require('bs58'); -bitcore.deps.Buffer = Buffer; -bitcore.deps.elliptic = require('elliptic'); -bitcore.deps._ = require('lodash'); - -// Internal usage, exposed for testing/advanced tweaking -bitcore.Transaction.sighash = require('./lib/transaction/sighash'); - -}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer) -},{"./lib/address":266,"./lib/block":269,"./lib/block/blockheader":268,"./lib/block/merkleblock":270,"./lib/crypto/bn":271,"./lib/crypto/ecdsa":272,"./lib/crypto/hash":273,"./lib/crypto/point":274,"./lib/crypto/random":275,"./lib/crypto/signature":276,"./lib/encoding/base58":277,"./lib/encoding/base58check":278,"./lib/encoding/bufferreader":279,"./lib/encoding/bufferwriter":280,"./lib/encoding/varint":281,"./lib/errors":282,"./lib/hdprivatekey.js":284,"./lib/hdpublickey.js":285,"./lib/networks":286,"./lib/opcode":287,"./lib/privatekey":288,"./lib/publickey":289,"./lib/script":290,"./lib/transaction":293,"./lib/transaction/sighash":301,"./lib/unit":306,"./lib/uri":307,"./lib/util/buffer":308,"./lib/util/js":309,"./lib/util/preconditions":310,"./package.json":312,"bn.js":108,"bs58":138,"buffer":146,"elliptic":317,"lodash":311}],266:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var _ = require('lodash'); -var $ = require('./util/preconditions'); -var errors = require('./errors'); -var Base58Check = require('./encoding/base58check'); -var Networks = require('./networks'); -var Hash = require('./crypto/hash'); -var JSUtil = require('./util/js'); -var PublicKey = require('./publickey'); - -/** - * Instantiate an address from an address String or Buffer, a public key or script hash Buffer, - * or an instance of {@link PublicKey} or {@link Script}. - * - * This is an immutable class, and if the first parameter provided to this constructor is an - * `Address` instance, the same argument will be returned. - * - * An address has two key properties: `network` and `type`. The type is either - * `Address.PayToPublicKeyHash` (value is the `'pubkeyhash'` string) - * or `Address.PayToScriptHash` (the string `'scripthash'`). The network is an instance of {@link Network}. - * You can quickly check whether an address is of a given kind by using the methods - * `isPayToPublicKeyHash` and `isPayToScriptHash` - * - * @example - * ```javascript - * // validate that an input field is valid - * var error = Address.getValidationError(input, 'testnet'); - * if (!error) { - * var address = Address(input, 'testnet'); - * } else { - * // invalid network or checksum (typo?) - * var message = error.messsage; - * } - * - * // get an address from a public key - * var address = Address(publicKey, 'testnet').toString(); - * ``` - * - * @param {*} data - The encoded data in various formats - * @param {Network|String|number=} network - The network: 'livenet' or 'testnet' - * @param {string=} type - The type of address: 'script' or 'pubkey' - * @returns {Address} A new valid and frozen instance of an Address - * @constructor - */ -function Address(data, network, type) { - /* jshint maxcomplexity: 12 */ - /* jshint maxstatements: 20 */ - - if (!(this instanceof Address)) { - return new Address(data, network, type); - } - - if (_.isArray(data) && _.isNumber(network)) { - return Address.createMultisig(data, network, type); - } - - if (data instanceof Address) { - // Immutable instance - return data; - } - - $.checkArgument(data, 'First argument is required, please include address data.', 'guide/address.html'); - - if (network && !Networks.get(network)) { - throw new TypeError('Second argument must be "livenet" or "testnet".'); - } - - if (type && (type !== Address.PayToPublicKeyHash && type !== Address.PayToScriptHash)) { - throw new TypeError('Third argument must be "pubkeyhash" or "scripthash".'); - } - - var info = this._classifyArguments(data, network, type); - - // set defaults if not set - info.network = info.network || Networks.get(network) || Networks.defaultNetwork; - info.type = info.type || type || Address.PayToPublicKeyHash; - - JSUtil.defineImmutable(this, { - hashBuffer: info.hashBuffer, - network: info.network, - type: info.type - }); - - return this; -} - -/** - * Internal function used to split different kinds of arguments of the constructor - * @param {*} data - The encoded data in various formats - * @param {Network|String|number=} network - The network: 'livenet' or 'testnet' - * @param {string=} type - The type of address: 'script' or 'pubkey' - * @returns {Object} An "info" object with "type", "network", and "hashBuffer" - */ -Address.prototype._classifyArguments = function(data, network, type) { - /* jshint maxcomplexity: 10 */ - // transform and validate input data - if ((data instanceof Buffer || data instanceof Uint8Array) && data.length === 20) { - return Address._transformHash(data); - } else if ((data instanceof Buffer || data instanceof Uint8Array) && data.length === 21) { - return Address._transformBuffer(data, network, type); - } else if (data instanceof PublicKey) { - return Address._transformPublicKey(data); - } else if (data instanceof Script) { - return Address._transformScript(data, network); - } else if (typeof(data) === 'string') { - return Address._transformString(data, network, type); - } else if (_.isObject(data)) { - return Address._transformObject(data); - } else { - throw new TypeError('First argument is an unrecognized data format.'); - } -}; - -/** @static */ -Address.PayToPublicKeyHash = 'pubkeyhash'; -/** @static */ -Address.PayToScriptHash = 'scripthash'; - -/** - * @param {Buffer} hash - An instance of a hash Buffer - * @returns {Object} An object with keys: hashBuffer - * @private - */ -Address._transformHash = function(hash) { - var info = {}; - if (!(hash instanceof Buffer) && !(hash instanceof Uint8Array)) { - throw new TypeError('Address supplied is not a buffer.'); - } - if (hash.length !== 20) { - throw new TypeError('Address hashbuffers must be exactly 20 bytes.'); - } - info.hashBuffer = hash; - return info; -}; - -/** - * Deserializes an address serialized through `Address#toObject()` - * @param {Object} data - * @param {string} data.hash - the hash that this address encodes - * @param {string} data.type - either 'pubkeyhash' or 'scripthash' - * @param {Network=} data.network - the name of the network associated - * @return {Address} - */ -Address._transformObject = function(data) { - $.checkArgument(data.hash || data.hashBuffer, 'Must provide a `hash` or `hashBuffer` property'); - $.checkArgument(data.type, 'Must provide a `type` property'); - return { - hashBuffer: data.hash ? Buffer.from(data.hash, 'hex') : data.hashBuffer, - network: Networks.get(data.network) || Networks.defaultNetwork, - type: data.type - }; -}; - -/** - * Internal function to discover the network and type based on the first data byte - * - * @param {Buffer} buffer - An instance of a hex encoded address Buffer - * @returns {Object} An object with keys: network and type - * @private - */ -Address._classifyFromVersion = function(buffer) { - var version = {}; - - var pubkeyhashNetwork = Networks.get(buffer[0], 'pubkeyhash'); - var scripthashNetwork = Networks.get(buffer[0], 'scripthash'); - - if (pubkeyhashNetwork) { - version.network = pubkeyhashNetwork; - version.type = Address.PayToPublicKeyHash; - } else if (scripthashNetwork) { - version.network = scripthashNetwork; - version.type = Address.PayToScriptHash; - } - - return version; -}; - -/** - * Internal function to transform a bitcoin address buffer - * - * @param {Buffer} buffer - An instance of a hex encoded address Buffer - * @param {string=} network - The network: 'livenet' or 'testnet' - * @param {string=} type - The type: 'pubkeyhash' or 'scripthash' - * @returns {Object} An object with keys: hashBuffer, network and type - * @private - */ -Address._transformBuffer = function(buffer, network, type) { - /* jshint maxcomplexity: 9 */ - var info = {}; - if (!(buffer instanceof Buffer) && !(buffer instanceof Uint8Array)) { - throw new TypeError('Address supplied is not a buffer.'); - } - if (buffer.length !== 1 + 20) { - throw new TypeError('Address buffers must be exactly 21 bytes.'); - } - - var networkObj = Networks.get(network); - var bufferVersion = Address._classifyFromVersion(buffer); - - if (network && !networkObj) { - throw new TypeError('Unknown network'); - } - - if (!bufferVersion.network || (networkObj && networkObj !== bufferVersion.network)) { - throw new TypeError('Address has mismatched network type.'); - } - - if (!bufferVersion.type || (type && type !== bufferVersion.type)) { - throw new TypeError('Address has mismatched type.'); - } - - info.hashBuffer = buffer.slice(1); - info.network = bufferVersion.network; - info.type = bufferVersion.type; - return info; -}; - -/** - * Internal function to transform a {@link PublicKey} - * - * @param {PublicKey} pubkey - An instance of PublicKey - * @returns {Object} An object with keys: hashBuffer, type - * @private - */ -Address._transformPublicKey = function(pubkey) { - var info = {}; - if (!(pubkey instanceof PublicKey)) { - throw new TypeError('Address must be an instance of PublicKey.'); - } - info.hashBuffer = Hash.sha256ripemd160(pubkey.toBuffer()); - info.type = Address.PayToPublicKeyHash; - return info; -}; - -/** - * Internal function to transform a {@link Script} into a `info` object. - * - * @param {Script} script - An instance of Script - * @returns {Object} An object with keys: hashBuffer, type - * @private - */ -Address._transformScript = function(script, network) { - $.checkArgument(script instanceof Script, 'script must be a Script instance'); - var info = script.getAddressInfo(network); - if (!info) { - throw new errors.Script.CantDeriveAddress(script); - } - return info; -}; - -/** - * Creates a P2SH address from a set of public keys and a threshold. - * - * The addresses will be sorted lexicographically, as that is the trend in bitcoin. - * To create an address from unsorted public keys, use the {@link Script#buildMultisigOut} - * interface. - * - * @param {Array} publicKeys - a set of public keys to create an address - * @param {number} threshold - the number of signatures needed to release the funds - * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet' - * @param {boolean=} nestedWitness - if the address uses a nested p2sh witness - * @return {Address} - */ -Address.createMultisig = function(publicKeys, threshold, network, nestedWitness) { - network = network || publicKeys[0].network || Networks.defaultNetwork; - var redeemScript = Script.buildMultisigOut(publicKeys, threshold); - if (nestedWitness) { - return Address.payingTo(Script.buildWitnessMultisigOutFromScript(redeemScript), network); - } - return Address.payingTo(redeemScript, network); -}; - -/** - * Internal function to transform a bitcoin address string - * - * @param {string} data - * @param {String|Network=} network - either a Network instance, 'livenet', or 'testnet' - * @param {string=} type - The type: 'pubkeyhash' or 'scripthash' - * @returns {Object} An object with keys: hashBuffer, network and type - * @private - */ -Address._transformString = function(data, network, type) { - if (typeof(data) !== 'string') { - throw new TypeError('data parameter supplied is not a string.'); - } - data = data.trim(); - var addressBuffer = Base58Check.decode(data); - var info = Address._transformBuffer(addressBuffer, network, type); - return info; -}; - -/** - * Instantiate an address from a PublicKey instance - * - * @param {PublicKey} data - * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet' - * @returns {Address} A new valid and frozen instance of an Address - */ -Address.fromPublicKey = function(data, network) { - var info = Address._transformPublicKey(data); - network = network || Networks.defaultNetwork; - return new Address(info.hashBuffer, network, info.type); -}; - -/** - * Instantiate an address from a ripemd160 public key hash - * - * @param {Buffer} hash - An instance of buffer of the hash - * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet' - * @returns {Address} A new valid and frozen instance of an Address - */ -Address.fromPublicKeyHash = function(hash, network) { - var info = Address._transformHash(hash); - return new Address(info.hashBuffer, network, Address.PayToPublicKeyHash); -}; - -/** - * Instantiate an address from a ripemd160 script hash - * - * @param {Buffer} hash - An instance of buffer of the hash - * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet' - * @returns {Address} A new valid and frozen instance of an Address - */ -Address.fromScriptHash = function(hash, network) { - $.checkArgument(hash, 'hash parameter is required'); - var info = Address._transformHash(hash); - return new Address(info.hashBuffer, network, Address.PayToScriptHash); -}; - -/** - * Builds a p2sh address paying to script. This will hash the script and - * use that to create the address. - * If you want to extract an address associated with a script instead, - * see {{Address#fromScript}} - * - * @param {Script} script - An instance of Script - * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet' - * @returns {Address} A new valid and frozen instance of an Address - */ -Address.payingTo = function(script, network) { - $.checkArgument(script, 'script is required'); - $.checkArgument(script instanceof Script, 'script must be instance of Script'); - return Address.fromScriptHash(Hash.sha256ripemd160(script.toBuffer()), network); -}; - -/** - * Extract address from a Script. The script must be of one - * of the following types: p2pkh input, p2pkh output, p2sh input - * or p2sh output. - * This will analyze the script and extract address information from it. - * If you want to transform any script to a p2sh Address paying - * to that script's hash instead, use {{Address#payingTo}} - * - * @param {Script} script - An instance of Script - * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet' - * @returns {Address} A new valid and frozen instance of an Address - */ -Address.fromScript = function(script, network) { - $.checkArgument(script instanceof Script, 'script must be a Script instance'); - var info = Address._transformScript(script, network); - return new Address(info.hashBuffer, network, info.type); -}; - -/** - * Instantiate an address from a buffer of the address - * - * @param {Buffer} buffer - An instance of buffer of the address - * @param {String|Network=} network - either a Network instance, 'livenet', or 'testnet' - * @param {string=} type - The type of address: 'script' or 'pubkey' - * @returns {Address} A new valid and frozen instance of an Address - */ -Address.fromBuffer = function(buffer, network, type) { - var info = Address._transformBuffer(buffer, network, type); - return new Address(info.hashBuffer, info.network, info.type); -}; - -/** - * Instantiate an address from an address string - * - * @param {string} str - An string of the bitcoin address - * @param {String|Network=} network - either a Network instance, 'livenet', or 'testnet' - * @param {string=} type - The type of address: 'script' or 'pubkey' - * @returns {Address} A new valid and frozen instance of an Address - */ -Address.fromString = function(str, network, type) { - var info = Address._transformString(str, network, type); - return new Address(info.hashBuffer, info.network, info.type); -}; - -/** - * Instantiate an address from an Object - * - * @param {string} json - An JSON string or Object with keys: hash, network and type - * @returns {Address} A new valid instance of an Address - */ -Address.fromObject = function fromObject(obj) { - $.checkState( - JSUtil.isHexa(obj.hash), - 'Unexpected hash property, "' + obj.hash + '", expected to be hex.' - ); - var hashBuffer = Buffer.from(obj.hash, 'hex'); - return new Address(hashBuffer, obj.network, obj.type); -}; - -/** - * Will return a validation error if exists - * - * @example - * ```javascript - * // a network mismatch error - * var error = Address.getValidationError('15vkcKf7gB23wLAnZLmbVuMiiVDc1Nm4a2', 'testnet'); - * ``` - * - * @param {string} data - The encoded data - * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet' - * @param {string} type - The type of address: 'script' or 'pubkey' - * @returns {null|Error} The corresponding error message - */ -Address.getValidationError = function(data, network, type) { - var error; - try { - /* jshint nonew: false */ - new Address(data, network, type); - } catch (e) { - error = e; - } - return error; -}; - -/** - * Will return a boolean if an address is valid - * - * @example - * ```javascript - * assert(Address.isValid('15vkcKf7gB23wLAnZLmbVuMiiVDc1Nm4a2', 'livenet')); - * ``` - * - * @param {string} data - The encoded data - * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet' - * @param {string} type - The type of address: 'script' or 'pubkey' - * @returns {boolean} The corresponding error message - */ -Address.isValid = function(data, network, type) { - return !Address.getValidationError(data, network, type); -}; - -/** - * Returns true if an address is of pay to public key hash type - * @return boolean - */ -Address.prototype.isPayToPublicKeyHash = function() { - return this.type === Address.PayToPublicKeyHash; -}; - -/** - * Returns true if an address is of pay to script hash type - * @return boolean - */ -Address.prototype.isPayToScriptHash = function() { - return this.type === Address.PayToScriptHash; -}; - -/** - * Will return a buffer representation of the address - * - * @returns {Buffer} Bitcoin address buffer - */ -Address.prototype.toBuffer = function() { - var version = Buffer.from([this.network[this.type]]); - return Buffer.concat([version, this.hashBuffer]); -}; - -/** - * @returns {Object} A plain object with the address information - */ -Address.prototype.toObject = Address.prototype.toJSON = function toObject() { - return { - hash: this.hashBuffer.toString('hex'), - type: this.type, - network: this.network.toString() - }; -}; - -/** - * Will return a the string representation of the address - * - * @returns {string} Bitcoin address - */ -Address.prototype.toString = function() { - return Base58Check.encode(this.toBuffer()); -}; - -/** - * Will return a string formatted for the console - * - * @returns {string} Bitcoin address - */ -Address.prototype.inspect = function() { - return ''; -}; - -module.exports = Address; - -var Script = require('./script'); - -}).call(this,require("buffer").Buffer) -},{"./crypto/hash":273,"./encoding/base58check":278,"./errors":282,"./networks":286,"./publickey":289,"./script":290,"./util/js":309,"./util/preconditions":310,"buffer":146,"lodash":311}],267:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var _ = require('lodash'); -var BlockHeader = require('./blockheader'); -var BN = require('../crypto/bn'); -var BufferUtil = require('../util/buffer'); -var BufferReader = require('../encoding/bufferreader'); -var BufferWriter = require('../encoding/bufferwriter'); -var Hash = require('../crypto/hash'); -var Transaction = require('../transaction'); -var $ = require('../util/preconditions'); - -/** - * Instantiate a Block from a Buffer, JSON object, or Object with - * the properties of the Block - * - * @param {*} - A Buffer, JSON string, or Object - * @returns {Block} - * @constructor - */ -function Block(arg) { - if (!(this instanceof Block)) { - return new Block(arg); - } - _.extend(this, Block._from(arg)); - return this; -} - -// https://github.com/bitcoin/bitcoin/blob/b5fa132329f0377d787a4a21c1686609c2bfaece/src/primitives/block.h#L14 -Block.MAX_BLOCK_SIZE = 1000000; - -/** - * @param {*} - A Buffer, JSON string or Object - * @returns {Object} - An object representing block data - * @throws {TypeError} - If the argument was not recognized - * @private - */ -Block._from = function _from(arg) { - var info = {}; - if (BufferUtil.isBuffer(arg)) { - info = Block._fromBufferReader(BufferReader(arg)); - } else if (_.isObject(arg)) { - info = Block._fromObject(arg); - } else { - throw new TypeError('Unrecognized argument for Block'); - } - return info; -}; - -/** - * @param {Object} - A plain JavaScript object - * @returns {Object} - An object representing block data - * @private - */ -Block._fromObject = function _fromObject(data) { - var transactions = []; - data.transactions.forEach(function(tx) { - if (tx instanceof Transaction) { - transactions.push(tx); - } else { - transactions.push(Transaction().fromObject(tx)); - } - }); - var info = { - header: BlockHeader.fromObject(data.header), - transactions: transactions - }; - return info; -}; - -/** - * @param {Object} - A plain JavaScript object - * @returns {Block} - An instance of block - */ -Block.fromObject = function fromObject(obj) { - var info = Block._fromObject(obj); - return new Block(info); -}; - -/** - * @param {BufferReader} - Block data - * @returns {Object} - An object representing the block data - * @private - */ -Block._fromBufferReader = function _fromBufferReader(br) { - var info = {}; - $.checkState(!br.finished(), 'No block data received'); - info.header = BlockHeader.fromBufferReader(br); - var transactions = br.readVarintNum(); - info.transactions = []; - for (var i = 0; i < transactions; i++) { - info.transactions.push(Transaction().fromBufferReader(br)); - } - return info; -}; - -/** - * @param {BufferReader} - A buffer reader of the block - * @returns {Block} - An instance of block - */ -Block.fromBufferReader = function fromBufferReader(br) { - $.checkArgument(br, 'br is required'); - var info = Block._fromBufferReader(br); - return new Block(info); -}; - -/** - * @param {Buffer} - A buffer of the block - * @returns {Block} - An instance of block - */ -Block.fromBuffer = function fromBuffer(buf) { - return Block.fromBufferReader(new BufferReader(buf)); -}; - -/** - * @param {string} - str - A hex encoded string of the block - * @returns {Block} - A hex encoded string of the block - */ -Block.fromString = function fromString(str) { - var buf = Buffer.from(str, 'hex'); - return Block.fromBuffer(buf); -}; - -/** - * @param {Binary} - Raw block binary data or buffer - * @returns {Block} - An instance of block - */ -Block.fromRawBlock = function fromRawBlock(data) { - if (!BufferUtil.isBuffer(data)) { - data = Buffer.from(data, 'binary'); - } - var br = BufferReader(data); - br.pos = Block.Values.START_OF_BLOCK; - var info = Block._fromBufferReader(br); - return new Block(info); -}; - -/** - * @returns {Object} - A plain object with the block properties - */ -Block.prototype.toObject = Block.prototype.toJSON = function toObject() { - var transactions = []; - this.transactions.forEach(function(tx) { - transactions.push(tx.toObject()); - }); - return { - header: this.header.toObject(), - transactions: transactions - }; -}; - -/** - * @returns {Buffer} - A buffer of the block - */ -Block.prototype.toBuffer = function toBuffer() { - return this.toBufferWriter().concat(); -}; - -/** - * @returns {string} - A hex encoded string of the block - */ -Block.prototype.toString = function toString() { - return this.toBuffer().toString('hex'); -}; - -/** - * @param {BufferWriter} - An existing instance of BufferWriter - * @returns {BufferWriter} - An instance of BufferWriter representation of the Block - */ -Block.prototype.toBufferWriter = function toBufferWriter(bw) { - if (!bw) { - bw = new BufferWriter(); - } - bw.write(this.header.toBuffer()); - bw.writeVarintNum(this.transactions.length); - for (var i = 0; i < this.transactions.length; i++) { - this.transactions[i].toBufferWriter(bw); - } - return bw; -}; - -/** - * Will iterate through each transaction and return an array of hashes - * @returns {Array} - An array with transaction hashes - */ -Block.prototype.getTransactionHashes = function getTransactionHashes() { - var hashes = []; - if (this.transactions.length === 0) { - return [Block.Values.NULL_HASH]; - } - for (var t = 0; t < this.transactions.length; t++) { - hashes.push(this.transactions[t]._getHash()); - } - return hashes; -}; - -/** - * Will build a merkle tree of all the transactions, ultimately arriving at - * a single point, the merkle root. - * @link https://en.bitcoin.it/wiki/Protocol_specification#Merkle_Trees - * @returns {Array} - An array with each level of the tree after the other. - */ -Block.prototype.getMerkleTree = function getMerkleTree() { - - var tree = this.getTransactionHashes(); - - var j = 0; - for (var size = this.transactions.length; size > 1; size = Math.floor((size + 1) / 2)) { - for (var i = 0; i < size; i += 2) { - var i2 = Math.min(i + 1, size - 1); - var buf = Buffer.concat([tree[j + i], tree[j + i2]]); - tree.push(Hash.sha256sha256(buf)); - } - j += size; - } - - return tree; -}; - -/** - * Calculates the merkleRoot from the transactions. - * @returns {Buffer} - A buffer of the merkle root hash - */ -Block.prototype.getMerkleRoot = function getMerkleRoot() { - var tree = this.getMerkleTree(); - return tree[tree.length - 1]; -}; - -/** - * Verifies that the transactions in the block match the header merkle root - * @returns {Boolean} - If the merkle roots match - */ -Block.prototype.validMerkleRoot = function validMerkleRoot() { - - var h = new BN(this.header.merkleRoot.toString('hex'), 'hex'); - var c = new BN(this.getMerkleRoot().toString('hex'), 'hex'); - - if (h.cmp(c) !== 0) { - return false; - } - - return true; -}; - -/** - * @returns {Buffer} - The little endian hash buffer of the header - */ -Block.prototype._getHash = function() { - return this.header._getHash(); -}; - -var idProperty = { - configurable: false, - enumerable: true, - /** - * @returns {string} - The big endian hash buffer of the header - */ - get: function() { - if (!this._id) { - this._id = this.header.id; - } - return this._id; - }, - set: _.noop -}; -Object.defineProperty(Block.prototype, 'id', idProperty); -Object.defineProperty(Block.prototype, 'hash', idProperty); - -/** - * @returns {string} - A string formatted for the console - */ -Block.prototype.inspect = function inspect() { - return ''; -}; - -Block.Values = { - START_OF_BLOCK: 8, // Start of block in raw block data - NULL_HASH: Buffer.from('0000000000000000000000000000000000000000000000000000000000000000', 'hex') -}; - -module.exports = Block; - -}).call(this,require("buffer").Buffer) -},{"../crypto/bn":271,"../crypto/hash":273,"../encoding/bufferreader":279,"../encoding/bufferwriter":280,"../transaction":293,"../util/buffer":308,"../util/preconditions":310,"./blockheader":268,"buffer":146,"lodash":311}],268:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var _ = require('lodash'); -var BN = require('../crypto/bn'); -var BufferUtil = require('../util/buffer'); -var BufferReader = require('../encoding/bufferreader'); -var BufferWriter = require('../encoding/bufferwriter'); -var Hash = require('../crypto/hash'); -var JSUtil = require('../util/js'); -var $ = require('../util/preconditions'); - -var GENESIS_BITS = 0x1d00ffff; - -/** - * Instantiate a BlockHeader from a Buffer, JSON object, or Object with - * the properties of the BlockHeader - * - * @param {*} - A Buffer, JSON string, or Object - * @returns {BlockHeader} - An instance of block header - * @constructor - */ -var BlockHeader = function BlockHeader(arg) { - if (!(this instanceof BlockHeader)) { - return new BlockHeader(arg); - } - var info = BlockHeader._from(arg); - this.version = info.version; - this.prevHash = info.prevHash; - this.merkleRoot = info.merkleRoot; - this.time = info.time; - this.timestamp = info.time; - this.bits = info.bits; - this.nonce = info.nonce; - - if (info.hash) { - $.checkState( - this.hash === info.hash, - 'Argument object hash property does not match block hash.' - ); - } - - return this; -}; - -/** - * @param {*} - A Buffer, JSON string or Object - * @returns {Object} - An object representing block header data - * @throws {TypeError} - If the argument was not recognized - * @private - */ -BlockHeader._from = function _from(arg) { - var info = {}; - if (BufferUtil.isBuffer(arg)) { - info = BlockHeader._fromBufferReader(BufferReader(arg)); - } else if (_.isObject(arg)) { - info = BlockHeader._fromObject(arg); - } else { - throw new TypeError('Unrecognized argument for BlockHeader'); - } - return info; -}; - -/** - * @param {Object} - A JSON string - * @returns {Object} - An object representing block header data - * @private - */ -BlockHeader._fromObject = function _fromObject(data) { - $.checkArgument(data, 'data is required'); - var prevHash = data.prevHash; - var merkleRoot = data.merkleRoot; - if (_.isString(data.prevHash)) { - prevHash = BufferUtil.reverse(Buffer.from(data.prevHash, 'hex')); - } - if (_.isString(data.merkleRoot)) { - merkleRoot = BufferUtil.reverse(Buffer.from(data.merkleRoot, 'hex')); - } - var info = { - hash: data.hash, - version: data.version, - prevHash: prevHash, - merkleRoot: merkleRoot, - time: data.time, - timestamp: data.time, - bits: data.bits, - nonce: data.nonce - }; - return info; -}; - -/** - * @param {Object} - A plain JavaScript object - * @returns {BlockHeader} - An instance of block header - */ -BlockHeader.fromObject = function fromObject(obj) { - var info = BlockHeader._fromObject(obj); - return new BlockHeader(info); -}; - -/** - * @param {Binary} - Raw block binary data or buffer - * @returns {BlockHeader} - An instance of block header - */ -BlockHeader.fromRawBlock = function fromRawBlock(data) { - if (!BufferUtil.isBuffer(data)) { - data = Buffer.from(data, 'binary'); - } - var br = BufferReader(data); - br.pos = BlockHeader.Constants.START_OF_HEADER; - var info = BlockHeader._fromBufferReader(br); - return new BlockHeader(info); -}; - -/** - * @param {Buffer} - A buffer of the block header - * @returns {BlockHeader} - An instance of block header - */ -BlockHeader.fromBuffer = function fromBuffer(buf) { - var info = BlockHeader._fromBufferReader(BufferReader(buf)); - return new BlockHeader(info); -}; - -/** - * @param {string} - A hex encoded buffer of the block header - * @returns {BlockHeader} - An instance of block header - */ -BlockHeader.fromString = function fromString(str) { - var buf = Buffer.from(str, 'hex'); - return BlockHeader.fromBuffer(buf); -}; - -/** - * @param {BufferReader} - A BufferReader of the block header - * @returns {Object} - An object representing block header data - * @private - */ -BlockHeader._fromBufferReader = function _fromBufferReader(br) { - var info = {}; - info.version = br.readInt32LE(); - info.prevHash = br.read(32); - info.merkleRoot = br.read(32); - info.time = br.readUInt32LE(); - info.bits = br.readUInt32LE(); - info.nonce = br.readUInt32LE(); - return info; -}; - -/** - * @param {BufferReader} - A BufferReader of the block header - * @returns {BlockHeader} - An instance of block header - */ -BlockHeader.fromBufferReader = function fromBufferReader(br) { - var info = BlockHeader._fromBufferReader(br); - return new BlockHeader(info); -}; - -/** - * @returns {Object} - A plain object of the BlockHeader - */ -BlockHeader.prototype.toObject = BlockHeader.prototype.toJSON = function toObject() { - return { - hash: this.hash, - version: this.version, - prevHash: BufferUtil.reverse(this.prevHash).toString('hex'), - merkleRoot: BufferUtil.reverse(this.merkleRoot).toString('hex'), - time: this.time, - bits: this.bits, - nonce: this.nonce - }; -}; - -/** - * @returns {Buffer} - A Buffer of the BlockHeader - */ -BlockHeader.prototype.toBuffer = function toBuffer() { - return this.toBufferWriter().concat(); -}; - -/** - * @returns {string} - A hex encoded string of the BlockHeader - */ -BlockHeader.prototype.toString = function toString() { - return this.toBuffer().toString('hex'); -}; - -/** - * @param {BufferWriter} - An existing instance BufferWriter - * @returns {BufferWriter} - An instance of BufferWriter representation of the BlockHeader - */ -BlockHeader.prototype.toBufferWriter = function toBufferWriter(bw) { - if (!bw) { - bw = new BufferWriter(); - } - bw.writeInt32LE(this.version); - bw.write(this.prevHash); - bw.write(this.merkleRoot); - bw.writeUInt32LE(this.time); - bw.writeUInt32LE(this.bits); - bw.writeUInt32LE(this.nonce); - return bw; -}; - -/** - * Returns the target difficulty for this block - * @param {Number} bits - * @returns {BN} An instance of BN with the decoded difficulty bits - */ -BlockHeader.prototype.getTargetDifficulty = function getTargetDifficulty(bits) { - bits = bits || this.bits; - - var target = new BN(bits & 0xffffff); - var mov = 8 * ((bits >>> 24) - 3); - while (mov-- > 0) { - target = target.mul(new BN(2)); - } - return target; -}; - -/** - * @link https://en.bitcoin.it/wiki/Difficulty - * @return {Number} - */ -BlockHeader.prototype.getDifficulty = function getDifficulty() { - var difficulty1TargetBN = this.getTargetDifficulty(GENESIS_BITS).mul(new BN(Math.pow(10, 8))); - var currentTargetBN = this.getTargetDifficulty(); - - var difficultyString = difficulty1TargetBN.div(currentTargetBN).toString(10); - var decimalPos = difficultyString.length - 8; - difficultyString = difficultyString.slice(0, decimalPos) + '.' + difficultyString.slice(decimalPos); - - return parseFloat(difficultyString); -}; - -/** - * @returns {Buffer} - The little endian hash buffer of the header - */ -BlockHeader.prototype._getHash = function hash() { - var buf = this.toBuffer(); - return Hash.sha256sha256(buf); -}; - -var idProperty = { - configurable: false, - enumerable: true, - /** - * @returns {string} - The big endian hash buffer of the header - */ - get: function() { - if (!this._id) { - this._id = BufferReader(this._getHash()).readReverse().toString('hex'); - } - return this._id; - }, - set: _.noop -}; -Object.defineProperty(BlockHeader.prototype, 'id', idProperty); -Object.defineProperty(BlockHeader.prototype, 'hash', idProperty); - -/** - * @returns {Boolean} - If timestamp is not too far in the future - */ -BlockHeader.prototype.validTimestamp = function validTimestamp() { - var currentTime = Math.round(new Date().getTime() / 1000); - if (this.time > currentTime + BlockHeader.Constants.MAX_TIME_OFFSET) { - return false; - } - return true; -}; - -/** - * @returns {Boolean} - If the proof-of-work hash satisfies the target difficulty - */ -BlockHeader.prototype.validProofOfWork = function validProofOfWork() { - var pow = new BN(this.id, 'hex'); - var target = this.getTargetDifficulty(); - - if (pow.cmp(target) > 0) { - return false; - } - return true; -}; - -/** - * @returns {string} - A string formatted for the console - */ -BlockHeader.prototype.inspect = function inspect() { - return ''; -}; - -BlockHeader.Constants = { - START_OF_HEADER: 8, // Start buffer position in raw block data - MAX_TIME_OFFSET: 2 * 60 * 60, // The max a timestamp can be in the future - LARGEST_HASH: new BN('10000000000000000000000000000000000000000000000000000000000000000', 'hex') -}; - -module.exports = BlockHeader; - -}).call(this,require("buffer").Buffer) -},{"../crypto/bn":271,"../crypto/hash":273,"../encoding/bufferreader":279,"../encoding/bufferwriter":280,"../util/buffer":308,"../util/js":309,"../util/preconditions":310,"buffer":146,"lodash":311}],269:[function(require,module,exports){ -module.exports = require('./block'); - -module.exports.BlockHeader = require('./blockheader'); -module.exports.MerkleBlock = require('./merkleblock'); - -},{"./block":267,"./blockheader":268,"./merkleblock":270}],270:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var _ = require('lodash'); -var BlockHeader = require('./blockheader'); -var BufferUtil = require('../util/buffer'); -var BufferReader = require('../encoding/bufferreader'); -var BufferWriter = require('../encoding/bufferwriter'); -var Hash = require('../crypto/hash'); -var JSUtil = require('../util/js'); -var Transaction = require('../transaction'); -var errors = require('../errors'); -var $ = require('../util/preconditions'); - -/** - * Instantiate a MerkleBlock from a Buffer, JSON object, or Object with - * the properties of the Block - * - * @param {*} - A Buffer, JSON string, or Object representing a MerkleBlock - * @returns {MerkleBlock} - * @constructor - */ -function MerkleBlock(arg) { - /* jshint maxstatements: 18 */ - - if (!(this instanceof MerkleBlock)) { - return new MerkleBlock(arg); - } - - var info = {}; - if (BufferUtil.isBuffer(arg)) { - info = MerkleBlock._fromBufferReader(BufferReader(arg)); - } else if (_.isObject(arg)) { - var header; - if(arg.header instanceof BlockHeader) { - header = arg.header; - } else { - header = BlockHeader.fromObject(arg.header); - } - info = { - /** - * @name MerkleBlock#header - * @type {BlockHeader} - */ - header: header, - /** - * @name MerkleBlock#numTransactions - * @type {Number} - */ - numTransactions: arg.numTransactions, - /** - * @name MerkleBlock#hashes - * @type {String[]} - */ - hashes: arg.hashes, - /** - * @name MerkleBlock#flags - * @type {Number[]} - */ - flags: arg.flags - }; - } else { - throw new TypeError('Unrecognized argument for MerkleBlock'); - } - _.extend(this,info); - this._flagBitsUsed = 0; - this._hashesUsed = 0; - - return this; -} - -/** - * @param {Buffer} - MerkleBlock data in a Buffer object - * @returns {MerkleBlock} - A MerkleBlock object - */ -MerkleBlock.fromBuffer = function fromBuffer(buf) { - return MerkleBlock.fromBufferReader(BufferReader(buf)); -}; - -/** - * @param {BufferReader} - MerkleBlock data in a BufferReader object - * @returns {MerkleBlock} - A MerkleBlock object - */ -MerkleBlock.fromBufferReader = function fromBufferReader(br) { - return new MerkleBlock(MerkleBlock._fromBufferReader(br)); -}; - -/** - * @returns {Buffer} - A buffer of the block - */ -MerkleBlock.prototype.toBuffer = function toBuffer() { - return this.toBufferWriter().concat(); -}; - -/** - * @param {BufferWriter} - An existing instance of BufferWriter - * @returns {BufferWriter} - An instance of BufferWriter representation of the MerkleBlock - */ -MerkleBlock.prototype.toBufferWriter = function toBufferWriter(bw) { - if (!bw) { - bw = new BufferWriter(); - } - bw.write(this.header.toBuffer()); - bw.writeUInt32LE(this.numTransactions); - bw.writeVarintNum(this.hashes.length); - for (var i = 0; i < this.hashes.length; i++) { - bw.write(Buffer.from(this.hashes[i], 'hex')); - } - bw.writeVarintNum(this.flags.length); - for (i = 0; i < this.flags.length; i++) { - bw.writeUInt8(this.flags[i]); - } - return bw; -}; - -/** - * @returns {Object} - A plain object with the MerkleBlock properties - */ -MerkleBlock.prototype.toObject = MerkleBlock.prototype.toJSON = function toObject() { - return { - header: this.header.toObject(), - numTransactions: this.numTransactions, - hashes: this.hashes, - flags: this.flags - }; -}; - -/** - * Verify that the MerkleBlock is valid - * @returns {Boolean} - True/False whether this MerkleBlock is Valid - */ -MerkleBlock.prototype.validMerkleTree = function validMerkleTree() { - $.checkState(_.isArray(this.flags), 'MerkleBlock flags is not an array'); - $.checkState(_.isArray(this.hashes), 'MerkleBlock hashes is not an array'); - - // Can't have more hashes than numTransactions - if(this.hashes.length > this.numTransactions) { - return false; - } - - // Can't have more flag bits than num hashes - if(this.flags.length * 8 < this.hashes.length) { - return false; - } - - var height = this._calcTreeHeight(); - var opts = { hashesUsed: 0, flagBitsUsed: 0 }; - var root = this._traverseMerkleTree(height, 0, opts); - if(opts.hashesUsed !== this.hashes.length) { - return false; - } - return BufferUtil.equals(root, this.header.merkleRoot); -}; - -/** - * Return a list of all the txs hash that match the filter - * @returns {Array} - txs hash that match the filter - */ -MerkleBlock.prototype.filterdTxsHash = function filterdTxsHash() { - $.checkState(_.isArray(this.flags), 'MerkleBlock flags is not an array'); - $.checkState(_.isArray(this.hashes), 'MerkleBlock hashes is not an array'); - - // Can't have more hashes than numTransactions - if(this.hashes.length > this.numTransactions) { - throw new errors.MerkleBlock.InvalidMerkleTree(); - } - - // Can't have more flag bits than num hashes - if(this.flags.length * 8 < this.hashes.length) { - throw new errors.MerkleBlock.InvalidMerkleTree(); - } - - // If there is only one hash the filter do not match any txs in the block - if(this.hashes.length === 1) { - return []; - }; - - var height = this._calcTreeHeight(); - var opts = { hashesUsed: 0, flagBitsUsed: 0 }; - var txs = this._traverseMerkleTree(height, 0, opts, true); - if(opts.hashesUsed !== this.hashes.length) { - throw new errors.MerkleBlock.InvalidMerkleTree(); - } - return txs; -}; - -/** - * Traverse a the tree in this MerkleBlock, validating it along the way - * Modeled after Bitcoin Core merkleblock.cpp TraverseAndExtract() - * @param {Number} - depth - Current height - * @param {Number} - pos - Current position in the tree - * @param {Object} - opts - Object with values that need to be mutated throughout the traversal - * @param {Boolean} - checkForTxs - if true return opts.txs else return the Merkle Hash - * @param {Number} - opts.flagBitsUsed - Number of flag bits used, should start at 0 - * @param {Number} - opts.hashesUsed - Number of hashes used, should start at 0 - * @param {Array} - opts.txs - Will finish populated by transactions found during traversal that match the filter - * @returns {Buffer|null} - Buffer containing the Merkle Hash for that height - * @returns {Array} - transactions found during traversal that match the filter - * @private - */ -MerkleBlock.prototype._traverseMerkleTree = function traverseMerkleTree(depth, pos, opts, checkForTxs) { - /* jshint maxcomplexity: 12*/ - /* jshint maxstatements: 20 */ - - opts = opts || {}; - opts.txs = opts.txs || []; - opts.flagBitsUsed = opts.flagBitsUsed || 0; - opts.hashesUsed = opts.hashesUsed || 0; - var checkForTxs = checkForTxs || false; - - if(opts.flagBitsUsed > this.flags.length * 8) { - return null; - } - var isParentOfMatch = (this.flags[opts.flagBitsUsed >> 3] >>> (opts.flagBitsUsed++ & 7)) & 1; - if(depth === 0 || !isParentOfMatch) { - if(opts.hashesUsed >= this.hashes.length) { - return null; - } - var hash = this.hashes[opts.hashesUsed++]; - if(depth === 0 && isParentOfMatch) { - opts.txs.push(hash); - } - return Buffer.from(hash, 'hex'); - } else { - var left = this._traverseMerkleTree(depth-1, pos*2, opts); - var right = left; - if(pos*2+1 < this._calcTreeWidth(depth-1)) { - right = this._traverseMerkleTree(depth-1, pos*2+1, opts); - } - if (checkForTxs){ - return opts.txs; - } else { - return Hash.sha256sha256(new Buffer.concat([left, right])); - }; - } -}; - -/** Calculates the width of a merkle tree at a given height. - * Modeled after Bitcoin Core merkleblock.h CalcTreeWidth() - * @param {Number} - Height at which we want the tree width - * @returns {Number} - Width of the tree at a given height - * @private - */ -MerkleBlock.prototype._calcTreeWidth = function calcTreeWidth(height) { - return (this.numTransactions + (1 << height) - 1) >> height; -}; - -/** Calculates the height of the merkle tree in this MerkleBlock - * @param {Number} - Height at which we want the tree width - * @returns {Number} - Height of the merkle tree in this MerkleBlock - * @private - */ -MerkleBlock.prototype._calcTreeHeight = function calcTreeHeight() { - var height = 0; - while (this._calcTreeWidth(height) > 1) { - height++; - } - return height; -}; - -/** - * @param {Transaction|String} - Transaction or Transaction ID Hash - * @returns {Boolean} - return true/false if this MerkleBlock has the TX or not - * @private - */ -MerkleBlock.prototype.hasTransaction = function hasTransaction(tx) { - $.checkArgument(!_.isUndefined(tx), 'tx cannot be undefined'); - $.checkArgument(tx instanceof Transaction || typeof tx === 'string', - 'Invalid tx given, tx must be a "string" or "Transaction"'); - - var hash = tx; - if(tx instanceof Transaction) { - // We need to reverse the id hash for the lookup - hash = BufferUtil.reverse(Buffer.from(tx.id, 'hex')).toString('hex'); - } - - var txs = []; - var height = this._calcTreeHeight(); - this._traverseMerkleTree(height, 0, { txs: txs }); - return txs.indexOf(hash) !== -1; -}; - -/** - * @param {Buffer} - MerkleBlock data - * @returns {Object} - An Object representing merkleblock data - * @private - */ -MerkleBlock._fromBufferReader = function _fromBufferReader(br) { - $.checkState(!br.finished(), 'No merkleblock data received'); - var info = {}; - info.header = BlockHeader.fromBufferReader(br); - info.numTransactions = br.readUInt32LE(); - var numHashes = br.readVarintNum(); - info.hashes = []; - for (var i = 0; i < numHashes; i++) { - info.hashes.push(br.read(32).toString('hex')); - } - var numFlags = br.readVarintNum(); - info.flags = []; - for (i = 0; i < numFlags; i++) { - info.flags.push(br.readUInt8()); - } - return info; -}; - -/** - * @param {Object} - A plain JavaScript object - * @returns {Block} - An instance of block - */ -MerkleBlock.fromObject = function fromObject(obj) { - return new MerkleBlock(obj); -}; - -module.exports = MerkleBlock; - -}).call(this,require("buffer").Buffer) -},{"../crypto/hash":273,"../encoding/bufferreader":279,"../encoding/bufferwriter":280,"../errors":282,"../transaction":293,"../util/buffer":308,"../util/js":309,"../util/preconditions":310,"./blockheader":268,"buffer":146,"lodash":311}],271:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var BN = require('bn.js'); -var $ = require('../util/preconditions'); -var _ = require('lodash'); - -var reversebuf = function(buf) { - var buf2 = Buffer.alloc(buf.length); - for (var i = 0; i < buf.length; i++) { - buf2[i] = buf[buf.length - 1 - i]; - } - return buf2; -}; - -BN.Zero = new BN(0); -BN.One = new BN(1); -BN.Minus1 = new BN(-1); - -BN.fromNumber = function(n) { - $.checkArgument(_.isNumber(n)); - return new BN(n); -}; - -BN.fromString = function(str, base) { - $.checkArgument(_.isString(str)); - return new BN(str, base); -}; - -BN.fromBuffer = function(buf, opts) { - if (typeof opts !== 'undefined' && opts.endian === 'little') { - buf = reversebuf(buf); - } - var hex = buf.toString('hex'); - var bn = new BN(hex, 16); - return bn; -}; - -/** - * Instantiate a BigNumber from a "signed magnitude buffer" - * (a buffer where the most significant bit represents the sign (0 = positive, -1 = negative)) - */ -BN.fromSM = function(buf, opts) { - var ret; - if (buf.length === 0) { - return BN.fromBuffer(Buffer.from([0])); - } - - var endian = 'big'; - if (opts) { - endian = opts.endian; - } - if (endian === 'little') { - buf = reversebuf(buf); - } - - if (buf[0] & 0x80) { - buf[0] = buf[0] & 0x7f; - ret = BN.fromBuffer(buf); - ret.neg().copy(ret); - } else { - ret = BN.fromBuffer(buf); - } - return ret; -}; - - -BN.prototype.toNumber = function() { - return parseInt(this.toString(10), 10); -}; - -BN.prototype.toBuffer = function(opts) { - var buf, hex; - if (opts && opts.size) { - hex = this.toString(16, 2); - var natlen = hex.length / 2; - buf = Buffer.from(hex, 'hex'); - - if (natlen === opts.size) { - buf = buf; - } else if (natlen > opts.size) { - buf = BN.trim(buf, natlen); - } else if (natlen < opts.size) { - buf = BN.pad(buf, natlen, opts.size); - } - } else { - hex = this.toString(16, 2); - buf = Buffer.from(hex, 'hex'); - } - - if (typeof opts !== 'undefined' && opts.endian === 'little') { - buf = reversebuf(buf); - } - - return buf; -}; - -BN.prototype.toSMBigEndian = function() { - var buf; - if (this.cmp(BN.Zero) === -1) { - buf = this.neg().toBuffer(); - if (buf[0] & 0x80) { - buf = Buffer.concat([Buffer.from([0x80]), buf]); - } else { - buf[0] = buf[0] | 0x80; - } - } else { - buf = this.toBuffer(); - if (buf[0] & 0x80) { - buf = Buffer.concat([Buffer.from([0x00]), buf]); - } - } - - if (buf.length === 1 & buf[0] === 0) { - buf = Buffer.from([]); - } - return buf; -}; - -BN.prototype.toSM = function(opts) { - var endian = opts ? opts.endian : 'big'; - var buf = this.toSMBigEndian(); - - if (endian === 'little') { - buf = reversebuf(buf); - } - return buf; -}; - -/** - * Create a BN from a "ScriptNum": - * This is analogous to the constructor for CScriptNum in bitcoind. Many ops in - * bitcoind's script interpreter use CScriptNum, which is not really a proper - * bignum. Instead, an error is thrown if trying to input a number bigger than - * 4 bytes. We copy that behavior here. A third argument, `size`, is provided to - * extend the hard limit of 4 bytes, as some usages require more than 4 bytes. - */ -BN.fromScriptNumBuffer = function(buf, fRequireMinimal, size) { - var nMaxNumSize = size || 4; - $.checkArgument(buf.length <= nMaxNumSize, new Error('script number overflow')); - if (fRequireMinimal && buf.length > 0) { - // Check that the number is encoded with the minimum possible - // number of bytes. - // - // If the most-significant-byte - excluding the sign bit - is zero - // then we're not minimal. Note how this test also rejects the - // negative-zero encoding, 0x80. - if ((buf[buf.length - 1] & 0x7f) === 0) { - // One exception: if there's more than one byte and the most - // significant bit of the second-most-significant-byte is set - // it would conflict with the sign bit. An example of this case - // is +-255, which encode to 0xff00 and 0xff80 respectively. - // (big-endian). - if (buf.length <= 1 || (buf[buf.length - 2] & 0x80) === 0) { - throw new Error('non-minimally encoded script number'); - } - } - } - return BN.fromSM(buf, { - endian: 'little' - }); -}; - -/** - * The corollary to the above, with the notable exception that we do not throw - * an error if the output is larger than four bytes. (Which can happen if - * performing a numerical operation that results in an overflow to more than 4 - * bytes). - */ -BN.prototype.toScriptNumBuffer = function() { - return this.toSM({ - endian: 'little' - }); -}; - -BN.trim = function(buf, natlen) { - return buf.slice(natlen - buf.length, buf.length); -}; - -BN.pad = function(buf, natlen, size) { - var rbuf = Buffer.alloc(size); - for (var i = 0; i < buf.length; i++) { - rbuf[rbuf.length - 1 - i] = buf[buf.length - 1 - i]; - } - for (i = 0; i < size - natlen; i++) { - rbuf[i] = 0; - } - return rbuf; -}; - -module.exports = BN; - -}).call(this,require("buffer").Buffer) -},{"../util/preconditions":310,"bn.js":108,"buffer":146,"lodash":311}],272:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var BN = require('./bn'); -var Point = require('./point'); -var Signature = require('./signature'); -var PublicKey = require('../publickey'); -var Random = require('./random'); -var Hash = require('./hash'); -var BufferUtil = require('../util/buffer'); -var _ = require('lodash'); -var $ = require('../util/preconditions'); - -var ECDSA = function ECDSA(obj) { - if (!(this instanceof ECDSA)) { - return new ECDSA(obj); - } - if (obj) { - this.set(obj); - } -}; - -/* jshint maxcomplexity: 9 */ -ECDSA.prototype.set = function(obj) { - this.hashbuf = obj.hashbuf || this.hashbuf; - this.endian = obj.endian || this.endian; //the endianness of hashbuf - this.privkey = obj.privkey || this.privkey; - this.pubkey = obj.pubkey || (this.privkey ? this.privkey.publicKey : this.pubkey); - this.sig = obj.sig || this.sig; - this.k = obj.k || this.k; - this.verified = obj.verified || this.verified; - return this; -}; - -ECDSA.prototype.privkey2pubkey = function() { - this.pubkey = this.privkey.toPublicKey(); -}; - -ECDSA.prototype.calci = function() { - for (var i = 0; i < 4; i++) { - this.sig.i = i; - var Qprime; - try { - Qprime = this.toPublicKey(); - } catch (e) { - console.error(e); - continue; - } - - if (Qprime.point.eq(this.pubkey.point)) { - this.sig.compressed = this.pubkey.compressed; - return this; - } - } - - this.sig.i = undefined; - throw new Error('Unable to find valid recovery factor'); -}; - -ECDSA.fromString = function(str) { - var obj = JSON.parse(str); - return new ECDSA(obj); -}; - -ECDSA.prototype.randomK = function() { - var N = Point.getN(); - var k; - do { - k = BN.fromBuffer(Random.getRandomBuffer(32)); - } while (!(k.lt(N) && k.gt(BN.Zero))); - this.k = k; - return this; -}; - - -// https://tools.ietf.org/html/rfc6979#section-3.2 -ECDSA.prototype.deterministicK = function(badrs) { - /* jshint maxstatements: 25 */ - // if r or s were invalid when this function was used in signing, - // we do not want to actually compute r, s here for efficiency, so, - // we can increment badrs. explained at end of RFC 6979 section 3.2 - if (_.isUndefined(badrs)) { - badrs = 0; - } - var v = Buffer.alloc(32); - v.fill(0x01); - var k = Buffer.alloc(32); - k.fill(0x00); - var x = this.privkey.bn.toBuffer({ - size: 32 - }); - var hashbuf = this.endian === 'little' ? BufferUtil.reverse(this.hashbuf) : this.hashbuf - k = Hash.sha256hmac(Buffer.concat([v, Buffer.from([0x00]), x, hashbuf]), k); - v = Hash.sha256hmac(v, k); - k = Hash.sha256hmac(Buffer.concat([v, Buffer.from([0x01]), x, hashbuf]), k); - v = Hash.sha256hmac(v, k); - v = Hash.sha256hmac(v, k); - var T = BN.fromBuffer(v); - var N = Point.getN(); - - // also explained in 3.2, we must ensure T is in the proper range (0, N) - for (var i = 0; i < badrs || !(T.lt(N) && T.gt(BN.Zero)); i++) { - k = Hash.sha256hmac(Buffer.concat([v, Buffer.from([0x00])]), k); - v = Hash.sha256hmac(v, k); - v = Hash.sha256hmac(v, k); - T = BN.fromBuffer(v); - } - - this.k = T; - return this; -}; - -// Information about public key recovery: -// https://bitcointalk.org/index.php?topic=6430.0 -// http://stackoverflow.com/questions/19665491/how-do-i-get-an-ecdsa-public-key-from-just-a-bitcoin-signature-sec1-4-1-6-k -ECDSA.prototype.toPublicKey = function() { - /* jshint maxstatements: 25 */ - var i = this.sig.i; - $.checkArgument(i === 0 || i === 1 || i === 2 || i === 3, new Error('i must be equal to 0, 1, 2, or 3')); - - var e = BN.fromBuffer(this.hashbuf); - var r = this.sig.r; - var s = this.sig.s; - - // A set LSB signifies that the y-coordinate is odd - var isYOdd = i & 1; - - // The more significant bit specifies whether we should use the - // first or second candidate key. - var isSecondKey = i >> 1; - - var n = Point.getN(); - var G = Point.getG(); - - // 1.1 Let x = r + jn - var x = isSecondKey ? r.add(n) : r; - var R = Point.fromX(isYOdd, x); - - // 1.4 Check that nR is at infinity - var nR = R.mul(n); - - if (!nR.isInfinity()) { - throw new Error('nR is not a valid curve point'); - } - - // Compute -e from e - var eNeg = e.neg().umod(n); - - // 1.6.1 Compute Q = r^-1 (sR - eG) - // Q = r^-1 (sR + -eG) - var rInv = r.invm(n); - - //var Q = R.multiplyTwo(s, G, eNeg).mul(rInv); - var Q = R.mul(s).add(G.mul(eNeg)).mul(rInv); - - var pubkey = PublicKey.fromPoint(Q, this.sig.compressed); - - return pubkey; -}; - -ECDSA.prototype.sigError = function() { - /* jshint maxstatements: 25 */ - if (!BufferUtil.isBuffer(this.hashbuf) || this.hashbuf.length !== 32) { - return 'hashbuf must be a 32 byte buffer'; - } - - var r = this.sig.r; - var s = this.sig.s; - if (!(r.gt(BN.Zero) && r.lt(Point.getN())) || !(s.gt(BN.Zero) && s.lt(Point.getN()))) { - return 'r and s not in range'; - } - - var e = BN.fromBuffer(this.hashbuf, this.endian ? { - endian: this.endian - } : undefined); - var n = Point.getN(); - var sinv = s.invm(n); - var u1 = sinv.mul(e).umod(n); - var u2 = sinv.mul(r).umod(n); - - var p = Point.getG().mulAdd(u1, this.pubkey.point, u2); - if (p.isInfinity()) { - return 'p is infinity'; - } - - if (p.getX().umod(n).cmp(r) !== 0) { - return 'Invalid signature'; - } else { - return false; - } -}; - -ECDSA.toLowS = function(s) { - //enforce low s - //see BIP 62, "low S values in signatures" - if (s.gt(BN.fromBuffer(Buffer.from('7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0', 'hex')))) { - s = Point.getN().sub(s); - } - return s; -}; - -ECDSA.prototype._findSignature = function(d, e) { - var N = Point.getN(); - var G = Point.getG(); - // try different values of k until r, s are valid - var badrs = 0; - var k, Q, r, s; - do { - if (!this.k || badrs > 0) { - this.deterministicK(badrs); - } - badrs++; - k = this.k; - Q = G.mul(k); - r = Q.x.umod(N); - s = k.invm(N).mul(e.add(d.mul(r))).umod(N); - } while (r.cmp(BN.Zero) <= 0 || s.cmp(BN.Zero) <= 0); - - s = ECDSA.toLowS(s); - return { - s: s, - r: r - }; - -}; - -ECDSA.prototype.sign = function() { - var hashbuf = this.hashbuf; - var privkey = this.privkey; - var d = privkey.bn; - - $.checkState(hashbuf && privkey && d, new Error('invalid parameters')); - $.checkState(BufferUtil.isBuffer(hashbuf) && hashbuf.length === 32, new Error('hashbuf must be a 32 byte buffer')); - - var e = BN.fromBuffer(hashbuf, this.endian ? { - endian: this.endian - } : undefined); - - var obj = this._findSignature(d, e); - obj.compressed = this.pubkey.compressed; - - this.sig = new Signature(obj); - return this; -}; - -ECDSA.prototype.signRandomK = function() { - this.randomK(); - return this.sign(); -}; - -ECDSA.prototype.toString = function() { - var obj = {}; - if (this.hashbuf) { - obj.hashbuf = this.hashbuf.toString('hex'); - } - if (this.privkey) { - obj.privkey = this.privkey.toString(); - } - if (this.pubkey) { - obj.pubkey = this.pubkey.toString(); - } - if (this.sig) { - obj.sig = this.sig.toString(); - } - if (this.k) { - obj.k = this.k.toString(); - } - return JSON.stringify(obj); -}; - -ECDSA.prototype.verify = function() { - if (!this.sigError()) { - this.verified = true; - } else { - this.verified = false; - } - return this; -}; - -ECDSA.sign = function(hashbuf, privkey, endian) { - return ECDSA().set({ - hashbuf: hashbuf, - endian: endian, - privkey: privkey - }).sign().sig; -}; - -ECDSA.verify = function(hashbuf, sig, pubkey, endian) { - return ECDSA().set({ - hashbuf: hashbuf, - endian: endian, - sig: sig, - pubkey: pubkey - }).verify().verified; -}; - -module.exports = ECDSA; - -}).call(this,require("buffer").Buffer) -},{"../publickey":289,"../util/buffer":308,"../util/preconditions":310,"./bn":271,"./hash":273,"./point":274,"./random":275,"./signature":276,"buffer":146,"lodash":311}],273:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var crypto = require('crypto'); -var BufferUtil = require('../util/buffer'); -var $ = require('../util/preconditions'); - -var Hash = module.exports; - -Hash.sha1 = function(buf) { - $.checkArgument(BufferUtil.isBuffer(buf)); - return crypto.createHash('sha1').update(buf).digest(); -}; - -Hash.sha1.blocksize = 512; - -Hash.sha256 = function(buf) { - $.checkArgument(BufferUtil.isBuffer(buf)); - return crypto.createHash('sha256').update(buf).digest(); -}; - -Hash.sha256.blocksize = 512; - -Hash.sha256sha256 = function(buf) { - $.checkArgument(BufferUtil.isBuffer(buf)); - return Hash.sha256(Hash.sha256(buf)); -}; - -Hash.ripemd160 = function(buf) { - $.checkArgument(BufferUtil.isBuffer(buf)); - return crypto.createHash('ripemd160').update(buf).digest(); -}; - -Hash.sha256ripemd160 = function(buf) { - $.checkArgument(BufferUtil.isBuffer(buf)); - return Hash.ripemd160(Hash.sha256(buf)); -}; - -Hash.sha512 = function(buf) { - $.checkArgument(BufferUtil.isBuffer(buf)); - return crypto.createHash('sha512').update(buf).digest(); -}; - -Hash.sha512.blocksize = 1024; - -Hash.hmac = function(hashf, data, key) { - //http://en.wikipedia.org/wiki/Hash-based_message_authentication_code - //http://tools.ietf.org/html/rfc4868#section-2 - $.checkArgument(BufferUtil.isBuffer(data)); - $.checkArgument(BufferUtil.isBuffer(key)); - $.checkArgument(hashf.blocksize); - - var blocksize = hashf.blocksize / 8; - - if (key.length > blocksize) { - key = hashf(key); - } else if (key < blocksize) { - var fill = Buffer.alloc(blocksize); - fill.fill(0); - key.copy(fill); - key = fill; - } - - var o_key = Buffer.alloc(blocksize); - o_key.fill(0x5c); - - var i_key = Buffer.alloc(blocksize); - i_key.fill(0x36); - - var o_key_pad = Buffer.alloc(blocksize); - var i_key_pad = Buffer.alloc(blocksize); - for (var i = 0; i < blocksize; i++) { - o_key_pad[i] = o_key[i] ^ key[i]; - i_key_pad[i] = i_key[i] ^ key[i]; - } - - return hashf(Buffer.concat([o_key_pad, hashf(Buffer.concat([i_key_pad, data]))])); -}; - -Hash.sha256hmac = function(data, key) { - return Hash.hmac(Hash.sha256, data, key); -}; - -Hash.sha512hmac = function(data, key) { - return Hash.hmac(Hash.sha512, data, key); -}; - -}).call(this,require("buffer").Buffer) -},{"../util/buffer":308,"../util/preconditions":310,"buffer":146,"crypto":243}],274:[function(require,module,exports){ -(function (Buffer){ -'use strict' - -var BN = require('./bn') -var BufferUtil = require('../util/buffer') - -var EC = require('elliptic').ec -var ec = new EC('p256') -var ecPoint = ec.curve.point.bind(ec.curve) -var ecPointFromX = ec.curve.pointFromX.bind(ec.curve) - -/** - * - * Instantiate a valid secp256k1 Point from the X and Y coordinates. - * - * @param {BN|String} x - The X coordinate - * @param {BN|String} y - The Y coordinate - * @link https://github.com/indutny/elliptic - * @augments elliptic.curve.point - * @throws {Error} A validation error if exists - * @returns {Point} An instance of Point - * @constructor - */ -var Point = function Point(x, y, isRed) { - try { - var point = ecPoint(x, y, isRed) - } catch (e) { - throw new Error('Invalid Point') - } - point.validate() - return point -} - -Point.prototype = Object.getPrototypeOf(ec.curve.point()) - -/** - * - * Instantiate a valid secp256k1 Point from only the X coordinate - * - * @param {boolean} odd - If the Y coordinate is odd - * @param {BN|String} x - The X coordinate - * @throws {Error} A validation error if exists - * @returns {Point} An instance of Point - */ -Point.fromX = function fromX(odd, x) { - try { - var point = ecPointFromX(x, odd) - } catch (e) { - throw new Error('Invalid X') - } - point.validate() - return point -} - -/** - * - * Will return a secp256k1 ECDSA base point. - * - * @link https://en.bitcoin.it/wiki/Secp256k1 - * @returns {Point} An instance of the base point. - */ -Point.getG = function getG() { - return ec.curve.g -} - -/** - * - * Will return the max of range of valid private keys as governed by the secp256k1 ECDSA standard. - * - * @link https://en.bitcoin.it/wiki/Private_key#Range_of_valid_ECDSA_private_keys - * @returns {BN} A BN instance of the number of points on the curve - */ -Point.getN = function getN() { - return new BN(ec.curve.n.toArray()) -} - -Point.prototype._getX = Point.prototype.getX - -/** - * - * Will return the X coordinate of the Point - * - * @returns {BN} A BN instance of the X coordinate - */ -Point.prototype.getX = function getX() { - return new BN(this._getX().toArray()) -} - -Point.prototype._getY = Point.prototype.getY - -/** - * - * Will return the Y coordinate of the Point - * - * @returns {BN} A BN instance of the Y coordinate - */ -Point.prototype.getY = function getY() { - return new BN(this._getY().toArray()) -} - -/** - * - * Will determine if the point is valid - * - * @link https://www.iacr.org/archive/pkc2003/25670211/25670211.pdf - * @param {Point} An instance of Point - * @throws {Error} A validation error if exists - * @returns {Point} An instance of the same Point - */ -Point.prototype.validate = function validate() { - if (this.isInfinity()) { - throw new Error('Point cannot be equal to Infinity') - } - - var p2 - try { - p2 = ecPointFromX(this.getX(), this.getY().isOdd()) - } catch (e) { - throw new Error('Point does not lie on the curve') - } - - if (p2.y.cmp(this.y) !== 0) { - throw new Error('Invalid y value for curve.') - } - - //todo: needs test case - if (!this.mul(Point.getN()).isInfinity()) { - throw new Error('Point times N must be infinity') - } - - return this -} - -Point.pointToCompressed = function pointToCompressed(point) { - var xbuf = point.getX().toBuffer({ size: 32 }) - var ybuf = point.getY().toBuffer({ size: 32 }) - - var prefix - var odd = ybuf[ybuf.length - 1] % 2 - if (odd) { - prefix = Buffer.from([0x03]) - } else { - prefix = Buffer.from([0x02]) - } - return BufferUtil.concat([prefix, xbuf]) -} - -module.exports = Point - -}).call(this,require("buffer").Buffer) -},{"../util/buffer":308,"./bn":271,"buffer":146,"elliptic":317}],275:[function(require,module,exports){ -(function (process,Buffer){ -'use strict'; - -function Random() { -} - -/* secure random bytes that sometimes throws an error due to lack of entropy */ -Random.getRandomBuffer = function(size) { - if (process.browser) - return Random.getRandomBufferBrowser(size); - else - return Random.getRandomBufferNode(size); -}; - -Random.getRandomBufferNode = function(size) { - var crypto = require('crypto'); - return crypto.randomBytes(size); -}; - -Random.getRandomBufferBrowser = function(size) { - if (!window.crypto && !window.msCrypto) - throw new Error('window.crypto not available'); - - if (window.crypto && window.crypto.getRandomValues) - var crypto = window.crypto; - else if (window.msCrypto && window.msCrypto.getRandomValues) //internet explorer - var crypto = window.msCrypto; - else - throw new Error('window.crypto.getRandomValues not available'); - - var bbuf = new Uint8Array(size); - crypto.getRandomValues(bbuf); - var buf = Buffer.from(bbuf); - - return buf; -}; - -/* insecure random bytes, but it never fails */ -Random.getPseudoRandomBuffer = function(size) { - var b32 = 0x100000000; - var b = Buffer.alloc(size); - var r; - - for (var i = 0; i <= size; i++) { - var j = Math.floor(i / 4); - var k = i - j * 4; - if (k === 0) { - r = Math.random() * b32; - b[i] = r & 0xff; - } else { - b[i] = (r = r >>> 8) & 0xff; - } - } - - return b; -}; - -module.exports = Random; - -}).call(this,require('_process'),require("buffer").Buffer) -},{"_process":678,"buffer":146,"crypto":243}],276:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var BN = require('./bn'); -var _ = require('lodash'); -var $ = require('../util/preconditions'); -var BufferUtil = require('../util/buffer'); -var JSUtil = require('../util/js'); - -var Signature = function Signature(r, s) { - if (!(this instanceof Signature)) { - return new Signature(r, s); - } - if (r instanceof BN) { - this.set({ - r: r, - s: s - }); - } else if (r) { - var obj = r; - this.set(obj); - } -}; - -/* jshint maxcomplexity: 7 */ -Signature.prototype.set = function(obj) { - this.r = obj.r || this.r || undefined; - this.s = obj.s || this.s || undefined; - - this.i = typeof obj.i !== 'undefined' ? obj.i : this.i; //public key recovery parameter in range [0, 3] - this.compressed = typeof obj.compressed !== 'undefined' ? - obj.compressed : this.compressed; //whether the recovered pubkey is compressed - this.nhashtype = obj.nhashtype || this.nhashtype || undefined; - return this; -}; - -Signature.fromCompact = function(buf) { - $.checkArgument(BufferUtil.isBuffer(buf), 'Argument is expected to be a Buffer'); - - var sig = new Signature(); - - var compressed = true; - var i = buf.slice(0, 1)[0] - 27 - 4; - if (i < 0) { - compressed = false; - i = i + 4; - } - - var b2 = buf.slice(1, 33); - var b3 = buf.slice(33, 65); - - $.checkArgument(i === 0 || i === 1 || i === 2 || i === 3, new Error('i must be 0, 1, 2, or 3')); - $.checkArgument(b2.length === 32, new Error('r must be 32 bytes')); - $.checkArgument(b3.length === 32, new Error('s must be 32 bytes')); - - sig.compressed = compressed; - sig.i = i; - sig.r = BN.fromBuffer(b2); - sig.s = BN.fromBuffer(b3); - - return sig; -}; - -Signature.fromDER = Signature.fromBuffer = function(buf, strict) { - var obj = Signature.parseDER(buf, strict); - var sig = new Signature(); - - sig.r = obj.r; - sig.s = obj.s; - - return sig; -}; - -// The format used in a tx -Signature.fromTxFormat = function(buf) { - var nhashtype = buf.readUInt8(buf.length - 1); - var derbuf = buf.slice(0, buf.length - 1); - var sig = new Signature.fromDER(derbuf, false); - sig.nhashtype = nhashtype; - return sig; -}; - -Signature.fromString = function(str) { - var buf = Buffer.from(str, 'hex'); - return Signature.fromDER(buf); -}; - - -/** - * In order to mimic the non-strict DER encoding of OpenSSL, set strict = false. - */ -Signature.parseDER = function(buf, strict) { - $.checkArgument(BufferUtil.isBuffer(buf), new Error('DER formatted signature should be a buffer')); - if (_.isUndefined(strict)) { - strict = true; - } - - var header = buf[0]; - $.checkArgument(header === 0x30, new Error('Header byte should be 0x30')); - - var length = buf[1]; - var buflength = buf.slice(2).length; - $.checkArgument(!strict || length === buflength, new Error('Length byte should length of what follows')); - - length = length < buflength ? length : buflength; - - var rheader = buf[2 + 0]; - $.checkArgument(rheader === 0x02, new Error('Integer byte for r should be 0x02')); - - var rlength = buf[2 + 1]; - var rbuf = buf.slice(2 + 2, 2 + 2 + rlength); - var r = BN.fromBuffer(rbuf); - var rneg = buf[2 + 1 + 1] === 0x00 ? true : false; - $.checkArgument(rlength === rbuf.length, new Error('Length of r incorrect')); - - var sheader = buf[2 + 2 + rlength + 0]; - $.checkArgument(sheader === 0x02, new Error('Integer byte for s should be 0x02')); - - var slength = buf[2 + 2 + rlength + 1]; - var sbuf = buf.slice(2 + 2 + rlength + 2, 2 + 2 + rlength + 2 + slength); - var s = BN.fromBuffer(sbuf); - var sneg = buf[2 + 2 + rlength + 2 + 2] === 0x00 ? true : false; - $.checkArgument(slength === sbuf.length, new Error('Length of s incorrect')); - - var sumlength = 2 + 2 + rlength + 2 + slength; - $.checkArgument(length === sumlength - 2, new Error('Length of signature incorrect')); - - var obj = { - header: header, - length: length, - rheader: rheader, - rlength: rlength, - rneg: rneg, - rbuf: rbuf, - r: r, - sheader: sheader, - slength: slength, - sneg: sneg, - sbuf: sbuf, - s: s - }; - - return obj; -}; - - -Signature.prototype.toCompact = function(i, compressed) { - i = typeof i === 'number' ? i : this.i; - compressed = typeof compressed === 'boolean' ? compressed : this.compressed; - - if (!(i === 0 || i === 1 || i === 2 || i === 3)) { - throw new Error('i must be equal to 0, 1, 2, or 3'); - } - - var val = i + 27 + 4; - if (compressed === false) { - val = val - 4; - } - var b1 = Buffer.from([val]); - var b2 = this.r.toBuffer({ - size: 32 - }); - var b3 = this.s.toBuffer({ - size: 32 - }); - return Buffer.concat([b1, b2, b3]); -}; - -Signature.prototype.toBuffer = Signature.prototype.toDER = function() { - var rnbuf = this.r.toBuffer(); - var snbuf = this.s.toBuffer(); - - var rneg = rnbuf[0] & 0x80 ? true : false; - var sneg = snbuf[0] & 0x80 ? true : false; - - var rbuf = rneg ? Buffer.concat([Buffer.from([0x00]), rnbuf]) : rnbuf; - var sbuf = sneg ? Buffer.concat([Buffer.from([0x00]), snbuf]) : snbuf; - - var rlength = rbuf.length; - var slength = sbuf.length; - var length = 2 + rlength + 2 + slength; - var rheader = 0x02; - var sheader = 0x02; - var header = 0x30; - - var der = Buffer.concat([Buffer.from([header, length, rheader, rlength]), rbuf, Buffer.from([sheader, slength]), sbuf]); - return der; -}; - -Signature.prototype.toString = function() { - var buf = this.toDER(); - return buf.toString('hex'); -}; - -/** - * This function is translated from bitcoind's IsDERSignature and is used in - * the script interpreter. This "DER" format actually includes an extra byte, - * the nhashtype, at the end. It is really the tx format, not DER format. - * - * A canonical signature exists of: [30] [total len] [02] [len R] [R] [02] [len S] [S] [hashtype] - * Where R and S are not negative (their first byte has its highest bit not set), and not - * excessively padded (do not start with a 0 byte, unless an otherwise negative number follows, - * in which case a single 0 byte is necessary and even required). - * - * See https://bitcointalk.org/index.php?topic=8392.msg127623#msg127623 - */ -Signature.isTxDER = function(buf) { - if (buf.length < 9) { - // Non-canonical signature: too short - return false; - } - if (buf.length > 73) { - // Non-canonical signature: too long - return false; - } - if (buf[0] !== 0x30) { - // Non-canonical signature: wrong type - return false; - } - if (buf[1] !== buf.length - 3) { - // Non-canonical signature: wrong length marker - return false; - } - var nLenR = buf[3]; - if (5 + nLenR >= buf.length) { - // Non-canonical signature: S length misplaced - return false; - } - var nLenS = buf[5 + nLenR]; - if ((nLenR + nLenS + 7) !== buf.length) { - // Non-canonical signature: R+S length mismatch - return false; - } - - var R = buf.slice(4); - if (buf[4 - 2] !== 0x02) { - // Non-canonical signature: R value type mismatch - return false; - } - if (nLenR === 0) { - // Non-canonical signature: R length is zero - return false; - } - if (R[0] & 0x80) { - // Non-canonical signature: R value negative - return false; - } - if (nLenR > 1 && (R[0] === 0x00) && !(R[1] & 0x80)) { - // Non-canonical signature: R value excessively padded - return false; - } - - var S = buf.slice(6 + nLenR); - if (buf[6 + nLenR - 2] !== 0x02) { - // Non-canonical signature: S value type mismatch - return false; - } - if (nLenS === 0) { - // Non-canonical signature: S length is zero - return false; - } - if (S[0] & 0x80) { - // Non-canonical signature: S value negative - return false; - } - if (nLenS > 1 && (S[0] === 0x00) && !(S[1] & 0x80)) { - // Non-canonical signature: S value excessively padded - return false; - } - return true; -}; - -/** - * Compares to bitcoind's IsLowDERSignature - * See also ECDSA signature algorithm which enforces this. - * See also BIP 62, "low S values in signatures" - */ -Signature.prototype.hasLowS = function() { - if (this.s.lt(new BN(1)) || - this.s.gt(new BN('7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0', 'hex'))) { - return false; - } - return true; -}; - -/** - * @returns true if the nhashtype is exactly equal to one of the standard options or combinations thereof. - * Translated from bitcoind's IsDefinedHashtypeSignature - */ -Signature.prototype.hasDefinedHashtype = function() { - if (!JSUtil.isNaturalNumber(this.nhashtype)) { - return false; - } - // accept with or without Signature.SIGHASH_ANYONECANPAY by ignoring the bit - var temp = this.nhashtype & ~Signature.SIGHASH_ANYONECANPAY; - if (temp < Signature.SIGHASH_ALL || temp > Signature.SIGHASH_SINGLE) { - return false; - } - return true; -}; - -Signature.prototype.toTxFormat = function() { - var derbuf = this.toDER(); - var buf = Buffer.alloc(1); - buf.writeUInt8(this.nhashtype, 0); - return Buffer.concat([derbuf, buf]); -}; - -Signature.SIGHASH_ALL = 0x01; -Signature.SIGHASH_NONE = 0x02; -Signature.SIGHASH_SINGLE = 0x03; -Signature.SIGHASH_ANYONECANPAY = 0x80; - -module.exports = Signature; - -}).call(this,require("buffer").Buffer) -},{"../util/buffer":308,"../util/js":309,"../util/preconditions":310,"./bn":271,"buffer":146,"lodash":311}],277:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var _ = require('lodash'); -var bs58 = require('bs58'); -var buffer = require('buffer'); - -var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'.split(''); - -var Base58 = function Base58(obj) { - /* jshint maxcomplexity: 8 */ - if (!(this instanceof Base58)) { - return new Base58(obj); - } - if (Buffer.isBuffer(obj)) { - var buf = obj; - this.fromBuffer(buf); - } else if (typeof obj === 'string') { - var str = obj; - this.fromString(str); - } else if (obj) { - this.set(obj); - } -}; - -Base58.validCharacters = function validCharacters(chars) { - if (buffer.Buffer.isBuffer(chars)) { - chars = chars.toString(); - } - return _.every(_.map(chars, function(char) { return _.includes(ALPHABET, char); })); -}; - -Base58.prototype.set = function(obj) { - this.buf = obj.buf || this.buf || undefined; - return this; -}; - -Base58.encode = function(buf) { - if (!buffer.Buffer.isBuffer(buf)) { - throw new Error('Input should be a buffer'); - } - return bs58.encode(buf); -}; - -Base58.decode = function(str) { - if (typeof str !== 'string') { - throw new Error('Input should be a string'); - } - return Buffer.from(bs58.decode(str)); -}; - -Base58.prototype.fromBuffer = function(buf) { - this.buf = buf; - return this; -}; - -Base58.prototype.fromString = function(str) { - var buf = Base58.decode(str); - this.buf = buf; - return this; -}; - -Base58.prototype.toBuffer = function() { - return this.buf; -}; - -Base58.prototype.toString = function() { - return Base58.encode(this.buf); -}; - -module.exports = Base58; - -}).call(this,require("buffer").Buffer) -},{"bs58":138,"buffer":146,"lodash":311}],278:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var _ = require('lodash'); -var Base58 = require('./base58'); -var buffer = require('buffer'); -var sha256sha256 = require('../crypto/hash').sha256sha256; - -var Base58Check = function Base58Check(obj) { - if (!(this instanceof Base58Check)) - return new Base58Check(obj); - if (Buffer.isBuffer(obj)) { - var buf = obj; - this.fromBuffer(buf); - } else if (typeof obj === 'string') { - var str = obj; - this.fromString(str); - } else if (obj) { - this.set(obj); - } -}; - -Base58Check.prototype.set = function(obj) { - this.buf = obj.buf || this.buf || undefined; - return this; -}; - -Base58Check.validChecksum = function validChecksum(data, checksum) { - if (_.isString(data)) { - data = new buffer.Buffer(Base58.decode(data)); - } - if (_.isString(checksum)) { - checksum = new buffer.Buffer(Base58.decode(checksum)); - } - if (!checksum) { - checksum = data.slice(-4); - data = data.slice(0, -4); - } - return Base58Check.checksum(data).toString('hex') === checksum.toString('hex'); -}; - -Base58Check.decode = function(s) { - if (typeof s !== 'string') - throw new Error('Input must be a string'); - - var buf = Buffer.from(Base58.decode(s)); - - if (buf.length < 4) - throw new Error("Input string too short"); - - var data = buf.slice(0, -4); - var csum = buf.slice(-4); - - var hash = sha256sha256(data); - var hash4 = hash.slice(0, 4); - - if (csum.toString('hex') !== hash4.toString('hex')) - throw new Error("Checksum mismatch"); - - return data; -}; - -Base58Check.checksum = function(buffer) { - return sha256sha256(buffer).slice(0, 4); -}; - -Base58Check.encode = function(buf) { - if (!Buffer.isBuffer(buf)) - throw new Error('Input must be a buffer'); - var checkedBuf = Buffer.alloc(buf.length + 4); - var hash = Base58Check.checksum(buf); - buf.copy(checkedBuf); - hash.copy(checkedBuf, buf.length); - return Base58.encode(checkedBuf); -}; - -Base58Check.prototype.fromBuffer = function(buf) { - this.buf = buf; - return this; -}; - -Base58Check.prototype.fromString = function(str) { - var buf = Base58Check.decode(str); - this.buf = buf; - return this; -}; - -Base58Check.prototype.toBuffer = function() { - return this.buf; -}; - -Base58Check.prototype.toString = function() { - return Base58Check.encode(this.buf); -}; - -module.exports = Base58Check; - -}).call(this,require("buffer").Buffer) -},{"../crypto/hash":273,"./base58":277,"buffer":146,"lodash":311}],279:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var _ = require('lodash'); -var $ = require('../util/preconditions'); -var BufferUtil = require('../util/buffer'); -var BN = require('../crypto/bn'); - -var BufferReader = function BufferReader(buf) { - if (!(this instanceof BufferReader)) { - return new BufferReader(buf); - } - if (_.isUndefined(buf)) { - return; - } - if (Buffer.isBuffer(buf)) { - this.set({ - buf: buf - }); - } else if (_.isString(buf)) { - this.set({ - buf: Buffer.from(buf, 'hex'), - }); - } else if (_.isObject(buf)) { - var obj = buf; - this.set(obj); - } else { - throw new TypeError('Unrecognized argument for BufferReader'); - } -}; - -BufferReader.prototype.set = function(obj) { - this.buf = obj.buf || this.buf || undefined; - this.pos = obj.pos || this.pos || 0; - return this; -}; - -BufferReader.prototype.eof = function() { - return this.pos >= this.buf.length; -}; - -BufferReader.prototype.finished = BufferReader.prototype.eof; - -BufferReader.prototype.read = function(len) { - $.checkArgument(!_.isUndefined(len), 'Must specify a length'); - var buf = this.buf.slice(this.pos, this.pos + len); - this.pos = this.pos + len; - return buf; -}; - -BufferReader.prototype.readAll = function() { - var buf = this.buf.slice(this.pos, this.buf.length); - this.pos = this.buf.length; - return buf; -}; - -BufferReader.prototype.readUInt8 = function() { - var val = this.buf.readUInt8(this.pos); - this.pos = this.pos + 1; - return val; -}; - -BufferReader.prototype.readUInt16BE = function() { - var val = this.buf.readUInt16BE(this.pos); - this.pos = this.pos + 2; - return val; -}; - -BufferReader.prototype.readUInt16LE = function() { - var val = this.buf.readUInt16LE(this.pos); - this.pos = this.pos + 2; - return val; -}; - -BufferReader.prototype.readUInt32BE = function() { - var val = this.buf.readUInt32BE(this.pos); - this.pos = this.pos + 4; - return val; -}; - -BufferReader.prototype.readUInt32LE = function() { - var val = this.buf.readUInt32LE(this.pos); - this.pos = this.pos + 4; - return val; -}; - -BufferReader.prototype.readInt32LE = function() { - var val = this.buf.readInt32LE(this.pos); - this.pos = this.pos + 4; - return val; -}; - -BufferReader.prototype.readUInt64BEBN = function() { - var buf = this.buf.slice(this.pos, this.pos + 8); - var bn = BN.fromBuffer(buf); - this.pos = this.pos + 8; - return bn; -}; - -BufferReader.prototype.readUInt64LEBN = function() { - var second = this.buf.readUInt32LE(this.pos); - var first = this.buf.readUInt32LE(this.pos + 4); - var combined = (first * 0x100000000) + second; - // Instantiating an instance of BN with a number is faster than with an - // array or string. However, the maximum safe number for a double precision - // floating point is 2 ^ 52 - 1 (0x1fffffffffffff), thus we can safely use - // non-floating point numbers less than this amount (52 bits). And in the case - // that the number is larger, we can instatiate an instance of BN by passing - // an array from the buffer (slower) and specifying the endianness. - var bn; - if (combined <= 0x1fffffffffffff) { - bn = new BN(combined); - } else { - var data = Array.prototype.slice.call(this.buf, this.pos, this.pos + 8); - bn = new BN(data, 10, 'le'); - } - this.pos = this.pos + 8; - return bn; -}; - -BufferReader.prototype.readVarintNum = function() { - var first = this.readUInt8(); - switch (first) { - case 0xFD: - return this.readUInt16LE(); - case 0xFE: - return this.readUInt32LE(); - case 0xFF: - var bn = this.readUInt64LEBN(); - var n = bn.toNumber(); - if (n <= Math.pow(2, 53)) { - return n; - } else { - throw new Error('number too large to retain precision - use readVarintBN'); - } - break; - default: - return first; - } -}; - -/** - * reads a length prepended buffer - */ -BufferReader.prototype.readVarLengthBuffer = function() { - var len = this.readVarintNum(); - var buf = this.read(len); - $.checkState(buf.length === len, 'Invalid length while reading varlength buffer. ' + - 'Expected to read: ' + len + ' and read ' + buf.length); - return buf; -}; - -BufferReader.prototype.readVarintBuf = function() { - var first = this.buf.readUInt8(this.pos); - switch (first) { - case 0xFD: - return this.read(1 + 2); - case 0xFE: - return this.read(1 + 4); - case 0xFF: - return this.read(1 + 8); - default: - return this.read(1); - } -}; - -BufferReader.prototype.readVarintBN = function() { - var first = this.readUInt8(); - switch (first) { - case 0xFD: - return new BN(this.readUInt16LE()); - case 0xFE: - return new BN(this.readUInt32LE()); - case 0xFF: - return this.readUInt64LEBN(); - default: - return new BN(first); - } -}; - -BufferReader.prototype.reverse = function() { - var buf = Buffer.alloc(this.buf.length); - for (var i = 0; i < buf.length; i++) { - buf[i] = this.buf[this.buf.length - 1 - i]; - } - this.buf = buf; - return this; -}; - -BufferReader.prototype.readReverse = function(len) { - if (_.isUndefined(len)) { - len = this.buf.length; - } - var buf = this.buf.slice(this.pos, this.pos + len); - this.pos = this.pos + len; - return BufferUtil.reverse(buf); -}; - -module.exports = BufferReader; - -}).call(this,require("buffer").Buffer) -},{"../crypto/bn":271,"../util/buffer":308,"../util/preconditions":310,"buffer":146,"lodash":311}],280:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var bufferUtil = require('../util/buffer'); -var assert = require('assert'); - -var BufferWriter = function BufferWriter(obj) { - if (!(this instanceof BufferWriter)) - return new BufferWriter(obj); - this.bufLen = 0; - if (obj) - this.set(obj); - else - this.bufs = []; -}; - -BufferWriter.prototype.set = function(obj) { - this.bufs = obj.bufs || this.bufs || []; - this.bufLen = this.bufs.reduce(function(prev, buf){ return prev + buf.length; }, 0); - return this; -}; - -BufferWriter.prototype.toBuffer = function() { - return this.concat(); -}; - -BufferWriter.prototype.concat = function() { - return Buffer.concat(this.bufs, this.bufLen); -}; - -BufferWriter.prototype.write = function(buf) { - assert(bufferUtil.isBuffer(buf)); - this.bufs.push(buf); - this.bufLen += buf.length; - return this; -}; - -BufferWriter.prototype.writeReverse = function(buf) { - assert(bufferUtil.isBuffer(buf)); - this.bufs.push(bufferUtil.reverse(buf)); - this.bufLen += buf.length; - return this; -}; - -BufferWriter.prototype.writeUInt8 = function(n) { - var buf = Buffer.alloc(1); - buf.writeUInt8(n, 0); - this.write(buf); - return this; -}; - -BufferWriter.prototype.writeUInt16BE = function(n) { - var buf = Buffer.alloc(2); - buf.writeUInt16BE(n, 0); - this.write(buf); - return this; -}; - -BufferWriter.prototype.writeUInt16LE = function(n) { - var buf = Buffer.alloc(2); - buf.writeUInt16LE(n, 0); - this.write(buf); - return this; -}; - -BufferWriter.prototype.writeUInt32BE = function(n) { - var buf = Buffer.alloc(4); - buf.writeUInt32BE(n, 0); - this.write(buf); - return this; -}; - -BufferWriter.prototype.writeInt32LE = function(n) { - var buf = Buffer.alloc(4); - buf.writeInt32LE(n, 0); - this.write(buf); - return this; -}; - -BufferWriter.prototype.writeUInt32LE = function(n) { - var buf = Buffer.alloc(4); - buf.writeUInt32LE(n, 0); - this.write(buf); - return this; -}; - -BufferWriter.prototype.writeUInt64BEBN = function(bn) { - var buf = bn.toBuffer({size: 8}); - this.write(buf); - return this; -}; - -BufferWriter.prototype.writeUInt64LEBN = function(bn) { - var buf = bn.toBuffer({size: 8}); - this.writeReverse(buf); - return this; -}; - -BufferWriter.prototype.writeVarintNum = function(n) { - var buf = BufferWriter.varintBufNum(n); - this.write(buf); - return this; -}; - -BufferWriter.prototype.writeVarintBN = function(bn) { - var buf = BufferWriter.varintBufBN(bn); - this.write(buf); - return this; -}; - -BufferWriter.varintBufNum = function(n) { - var buf = undefined; - if (n < 253) { - buf = Buffer.alloc(1); - buf.writeUInt8(n, 0); - } else if (n < 0x10000) { - buf = Buffer.alloc(1 + 2); - buf.writeUInt8(253, 0); - buf.writeUInt16LE(n, 1); - } else if (n < 0x100000000) { - buf = Buffer.alloc(1 + 4); - buf.writeUInt8(254, 0); - buf.writeUInt32LE(n, 1); - } else { - buf = Buffer.alloc(1 + 8); - buf.writeUInt8(255, 0); - buf.writeInt32LE(n & -1, 1); - buf.writeUInt32LE(Math.floor(n / 0x100000000), 5); - } - return buf; -}; - -BufferWriter.varintBufBN = function(bn) { - var buf = undefined; - var n = bn.toNumber(); - if (n < 253) { - buf = Buffer.alloc(1); - buf.writeUInt8(n, 0); - } else if (n < 0x10000) { - buf = Buffer.alloc(1 + 2); - buf.writeUInt8(253, 0); - buf.writeUInt16LE(n, 1); - } else if (n < 0x100000000) { - buf = Buffer.alloc(1 + 4); - buf.writeUInt8(254, 0); - buf.writeUInt32LE(n, 1); - } else { - var bw = new BufferWriter(); - bw.writeUInt8(255); - bw.writeUInt64LEBN(bn); - var buf = bw.concat(); - } - return buf; -}; - -module.exports = BufferWriter; - -}).call(this,require("buffer").Buffer) -},{"../util/buffer":308,"assert":26,"buffer":146}],281:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var BufferWriter = require('./bufferwriter'); -var BufferReader = require('./bufferreader'); -var BN = require('../crypto/bn'); - -var Varint = function Varint(buf) { - if (!(this instanceof Varint)) - return new Varint(buf); - if (Buffer.isBuffer(buf)) { - this.buf = buf; - } else if (typeof buf === 'number') { - var num = buf; - this.fromNumber(num); - } else if (buf instanceof BN) { - var bn = buf; - this.fromBN(bn); - } else if (buf) { - var obj = buf; - this.set(obj); - } -}; - -Varint.prototype.set = function(obj) { - this.buf = obj.buf || this.buf; - return this; -}; - -Varint.prototype.fromString = function(str) { - this.set({ - buf: Buffer.from(str, 'hex') - }); - return this; -}; - -Varint.prototype.toString = function() { - return this.buf.toString('hex'); -}; - -Varint.prototype.fromBuffer = function(buf) { - this.buf = buf; - return this; -}; - -Varint.prototype.fromBufferReader = function(br) { - this.buf = br.readVarintBuf(); - return this; -}; - -Varint.prototype.fromBN = function(bn) { - this.buf = BufferWriter().writeVarintBN(bn).concat(); - return this; -}; - -Varint.prototype.fromNumber = function(num) { - this.buf = BufferWriter().writeVarintNum(num).concat(); - return this; -}; - -Varint.prototype.toBuffer = function() { - return this.buf; -}; - -Varint.prototype.toBN = function() { - return BufferReader(this.buf).readVarintBN(); -}; - -Varint.prototype.toNumber = function() { - return BufferReader(this.buf).readVarintNum(); -}; - -module.exports = Varint; - -}).call(this,require("buffer").Buffer) -},{"../crypto/bn":271,"./bufferreader":279,"./bufferwriter":280,"buffer":146}],282:[function(require,module,exports){ -'use strict'; - -var _ = require('lodash'); - -function format(message, args) { - return message - .replace('{0}', args[0]) - .replace('{1}', args[1]) - .replace('{2}', args[2]); -} -var traverseNode = function(parent, errorDefinition) { - var NodeError = function() { - if (_.isString(errorDefinition.message)) { - this.message = format(errorDefinition.message, arguments); - } else if (_.isFunction(errorDefinition.message)) { - this.message = errorDefinition.message.apply(null, arguments); - } else { - throw new Error('Invalid error definition for ' + errorDefinition.name); - } - this.stack = this.message + '\n' + (new Error()).stack; - }; - NodeError.prototype = Object.create(parent.prototype); - NodeError.prototype.name = parent.prototype.name + errorDefinition.name; - parent[errorDefinition.name] = NodeError; - if (errorDefinition.errors) { - childDefinitions(NodeError, errorDefinition.errors); - } - return NodeError; -}; - -/* jshint latedef: false */ -var childDefinitions = function(parent, childDefinitions) { - _.each(childDefinitions, function(childDefinition) { - traverseNode(parent, childDefinition); - }); -}; -/* jshint latedef: true */ - -var traverseRoot = function(parent, errorsDefinition) { - childDefinitions(parent, errorsDefinition); - return parent; -}; - - -var bitcore = {}; -bitcore.Error = function() { - this.message = 'Internal error'; - this.stack = this.message + '\n' + (new Error()).stack; -}; -bitcore.Error.prototype = Object.create(Error.prototype); -bitcore.Error.prototype.name = 'bitcore.Error'; - - -var data = require('./spec'); -traverseRoot(bitcore.Error, data); - -module.exports = bitcore.Error; - -module.exports.extend = function(spec) { - return traverseNode(bitcore.Error, spec); -}; - -},{"./spec":283,"lodash":311}],283:[function(require,module,exports){ -'use strict'; - -var docsURL = 'http://bitcore.io/'; - -module.exports = [{ - name: 'InvalidB58Char', - message: 'Invalid Base58 character: {0} in {1}' -}, { - name: 'InvalidB58Checksum', - message: 'Invalid Base58 checksum for {0}' -}, { - name: 'InvalidNetwork', - message: 'Invalid version for network: got {0}' -}, { - name: 'InvalidState', - message: 'Invalid state: {0}' -}, { - name: 'NotImplemented', - message: 'Function {0} was not implemented yet' -}, { - name: 'InvalidNetworkArgument', - message: 'Invalid network: must be "livenet" or "testnet", got {0}' -}, { - name: 'InvalidArgument', - message: function() { - return 'Invalid Argument' + (arguments[0] ? (': ' + arguments[0]) : '') + - (arguments[1] ? (' Documentation: ' + docsURL + arguments[1]) : ''); - } -}, { - name: 'AbstractMethodInvoked', - message: 'Abstract Method Invocation: {0}' -}, { - name: 'InvalidArgumentType', - message: function() { - return 'Invalid Argument for ' + arguments[2] + ', expected ' + arguments[1] + ' but got ' + typeof arguments[0]; - } -}, { - name: 'Unit', - message: 'Internal Error on Unit {0}', - errors: [{ - 'name': 'UnknownCode', - 'message': 'Unrecognized unit code: {0}' - }, { - 'name': 'InvalidRate', - 'message': 'Invalid exchange rate: {0}' - }] -}, { - name: 'MerkleBlock', - message: 'Internal Error on MerkleBlock {0}', - errors: [{ - 'name': 'InvalidMerkleTree', - 'message': 'This MerkleBlock contain an invalid Merkle Tree' - }] -}, { - name: 'Transaction', - message: 'Internal Error on Transaction {0}', - errors: [{ - name: 'Input', - message: 'Internal Error on Input {0}', - errors: [{ - name: 'MissingScript', - message: 'Need a script to create an input' - }, { - name: 'UnsupportedScript', - message: 'Unsupported input script type: {0}' - }, { - name: 'MissingPreviousOutput', - message: 'No previous output information.' - }] - }, { - name: 'NeedMoreInfo', - message: '{0}' - }, { - name: 'InvalidSorting', - message: 'The sorting function provided did not return the change output as one of the array elements' - }, { - name: 'InvalidOutputAmountSum', - message: '{0}' - }, { - name: 'MissingSignatures', - message: 'Some inputs have not been fully signed' - }, { - name: 'InvalidIndex', - message: 'Invalid index: {0} is not between 0, {1}' - }, { - name: 'UnableToVerifySignature', - message: 'Unable to verify signature: {0}' - }, { - name: 'DustOutputs', - message: 'Dust amount detected in one output' - }, { - name: 'InvalidSatoshis', - message: 'Output satoshis are invalid', - }, { - name: 'FeeError', - message: 'Internal Error on Fee {0}', - errors: [{ - name: 'TooSmall', - message: 'Fee is too small: {0}', - }, { - name: 'TooLarge', - message: 'Fee is too large: {0}', - }, { - name: 'Different', - message: 'Unspent value is different from specified fee: {0}', - }] - }, { - name: 'ChangeAddressMissing', - message: 'Change address is missing' - }, { - name: 'BlockHeightTooHigh', - message: 'Block Height can be at most 2^32 -1' - }, { - name: 'NLockTimeOutOfRange', - message: 'Block Height can only be between 0 and 499 999 999' - }, { - name: 'LockTimeTooEarly', - message: 'Lock Time can\'t be earlier than UNIX date 500 000 000' - }] -}, { - name: 'Script', - message: 'Internal Error on Script {0}', - errors: [{ - name: 'UnrecognizedAddress', - message: 'Expected argument {0} to be an address' - }, { - name: 'CantDeriveAddress', - message: 'Can\'t derive address associated with script {0}, needs to be p2pkh in, p2pkh out, p2sh in, or p2sh out.' - }, { - name: 'InvalidBuffer', - message: 'Invalid script buffer: can\'t parse valid script from given buffer {0}' - }] -}, { - name: 'HDPrivateKey', - message: 'Internal Error on HDPrivateKey {0}', - errors: [{ - name: 'InvalidDerivationArgument', - message: 'Invalid derivation argument {0}, expected string, or number and boolean' - }, { - name: 'InvalidEntropyArgument', - message: 'Invalid entropy: must be an hexa string or binary buffer, got {0}', - errors: [{ - name: 'TooMuchEntropy', - message: 'Invalid entropy: more than 512 bits is non standard, got "{0}"' - }, { - name: 'NotEnoughEntropy', - message: 'Invalid entropy: at least 128 bits needed, got "{0}"' - }] - }, { - name: 'InvalidLength', - message: 'Invalid length for xprivkey string in {0}' - }, { - name: 'InvalidPath', - message: 'Invalid derivation path: {0}' - }, { - name: 'UnrecognizedArgument', - message: 'Invalid argument: creating a HDPrivateKey requires a string, buffer, json or object, got "{0}"' - }] -}, { - name: 'HDPublicKey', - message: 'Internal Error on HDPublicKey {0}', - errors: [{ - name: 'ArgumentIsPrivateExtended', - message: 'Argument is an extended private key: {0}' - }, { - name: 'InvalidDerivationArgument', - message: 'Invalid derivation argument: got {0}' - }, { - name: 'InvalidLength', - message: 'Invalid length for xpubkey: got "{0}"' - }, { - name: 'InvalidPath', - message: 'Invalid derivation path, it should look like: "m/1/100", got "{0}"' - }, { - name: 'InvalidIndexCantDeriveHardened', - message: 'Invalid argument: creating a hardened path requires an HDPrivateKey' - }, { - name: 'MustSupplyArgument', - message: 'Must supply an argument to create a HDPublicKey' - }, { - name: 'UnrecognizedArgument', - message: 'Invalid argument for creation, must be string, json, buffer, or object' - }] -}]; - -},{}],284:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - - -var assert = require('assert'); -var buffer = require('buffer'); -var _ = require('lodash'); -var $ = require('./util/preconditions'); - -var BN = require('./crypto/bn'); -var Base58 = require('./encoding/base58'); -var Base58Check = require('./encoding/base58check'); -var Hash = require('./crypto/hash'); -var Network = require('./networks'); -var Point = require('./crypto/point'); -var PrivateKey = require('./privatekey'); -var Random = require('./crypto/random'); - -var errors = require('./errors'); -var hdErrors = errors.HDPrivateKey; -var BufferUtil = require('./util/buffer'); -var JSUtil = require('./util/js'); - -var MINIMUM_ENTROPY_BITS = 128; -var BITS_TO_BYTES = 1 / 8; -var MAXIMUM_ENTROPY_BITS = 512; - - -/** - * Represents an instance of an hierarchically derived private key. - * - * More info on https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki - * - * @constructor - * @param {string|Buffer|Object} arg - */ -function HDPrivateKey(arg) { - /* jshint maxcomplexity: 10 */ - if (arg instanceof HDPrivateKey) { - return arg; - } - if (!(this instanceof HDPrivateKey)) { - return new HDPrivateKey(arg); - } - if (!arg) { - return this._generateRandomly(); - } - - if (Network.get(arg)) { - return this._generateRandomly(arg); - } else if (_.isString(arg) || BufferUtil.isBuffer(arg)) { - if (HDPrivateKey.isValidSerialized(arg)) { - this._buildFromSerialized(arg); - } else if (JSUtil.isValidJSON(arg)) { - this._buildFromJSON(arg); - } else if (BufferUtil.isBuffer(arg) && HDPrivateKey.isValidSerialized(arg.toString())) { - this._buildFromSerialized(arg.toString()); - } else { - throw HDPrivateKey.getSerializedError(arg); - } - } else if (_.isObject(arg)) { - this._buildFromObject(arg); - } else { - throw new hdErrors.UnrecognizedArgument(arg); - } -} - -/** - * Verifies that a given path is valid. - * - * @param {string|number} arg - * @param {boolean?} hardened - * @return {boolean} - */ -HDPrivateKey.isValidPath = function(arg, hardened) { - if (_.isString(arg)) { - var indexes = HDPrivateKey._getDerivationIndexes(arg); - return indexes !== null && _.every(indexes, HDPrivateKey.isValidPath); - } - - if (_.isNumber(arg)) { - if (arg < HDPrivateKey.Hardened && hardened === true) { - arg += HDPrivateKey.Hardened; - } - return arg >= 0 && arg < HDPrivateKey.MaxIndex; - } - - return false; -}; - -/** - * Internal function that splits a string path into a derivation index array. - * It will return null if the string path is malformed. - * It does not validate if indexes are in bounds. - * - * @param {string} path - * @return {Array} - */ -HDPrivateKey._getDerivationIndexes = function(path) { - var steps = path.split('/'); - - // Special cases: - if (_.includes(HDPrivateKey.RootElementAlias, path)) { - return []; - } - - if (!_.includes(HDPrivateKey.RootElementAlias, steps[0])) { - return null; - } - - var indexes = steps.slice(1).map(function(step) { - var isHardened = step.slice(-1) === '\''; - if (isHardened) { - step = step.slice(0, -1); - } - if (!step || step[0] === '-') { - return NaN; - } - var index = +step; // cast to number - if (isHardened) { - index += HDPrivateKey.Hardened; - } - - return index; - }); - - return _.some(indexes, isNaN) ? null : indexes; -}; - -/** - * WARNING: This method is deprecated. Use deriveChild or deriveNonCompliantChild instead. This is not BIP32 compliant - * - * - * Get a derived child based on a string or number. - * - * If the first argument is a string, it's parsed as the full path of - * derivation. Valid values for this argument include "m" (which returns the - * same private key), "m/0/1/40/2'/1000", where the ' quote means a hardened - * derivation. - * - * If the first argument is a number, the child with that index will be - * derived. If the second argument is truthy, the hardened version will be - * derived. See the example usage for clarification. - * - * @example - * ```javascript - * var parent = new HDPrivateKey('xprv...'); - * var child_0_1_2h = parent.derive(0).derive(1).derive(2, true); - * var copy_of_child_0_1_2h = parent.derive("m/0/1/2'"); - * assert(child_0_1_2h.xprivkey === copy_of_child_0_1_2h); - * ``` - * - * @param {string|number} arg - * @param {boolean?} hardened - */ -HDPrivateKey.prototype.derive = function(arg, hardened) { - return this.deriveNonCompliantChild(arg, hardened); -}; - -/** - * WARNING: This method will not be officially supported until v1.0.0. - * - * - * Get a derived child based on a string or number. - * - * If the first argument is a string, it's parsed as the full path of - * derivation. Valid values for this argument include "m" (which returns the - * same private key), "m/0/1/40/2'/1000", where the ' quote means a hardened - * derivation. - * - * If the first argument is a number, the child with that index will be - * derived. If the second argument is truthy, the hardened version will be - * derived. See the example usage for clarification. - * - * WARNING: The `nonCompliant` option should NOT be used, except for older implementation - * that used a derivation strategy that used a non-zero padded private key. - * - * @example - * ```javascript - * var parent = new HDPrivateKey('xprv...'); - * var child_0_1_2h = parent.deriveChild(0).deriveChild(1).deriveChild(2, true); - * var copy_of_child_0_1_2h = parent.deriveChild("m/0/1/2'"); - * assert(child_0_1_2h.xprivkey === copy_of_child_0_1_2h); - * ``` - * - * @param {string|number} arg - * @param {boolean?} hardened - */ -HDPrivateKey.prototype.deriveChild = function(arg, hardened) { - if (_.isNumber(arg)) { - return this._deriveWithNumber(arg, hardened); - } else if (_.isString(arg)) { - return this._deriveFromString(arg); - } else { - throw new hdErrors.InvalidDerivationArgument(arg); - } -}; - -/** - * WARNING: This method will not be officially supported until v1.0.0 - * - * - * WARNING: If this is a new implementation you should NOT use this method, you should be using - * `derive` instead. - * - * This method is explicitly for use and compatibility with an implementation that - * was not compliant with BIP32 regarding the derivation algorithm. The private key - * must be 32 bytes hashing, and this implementation will use the non-zero padded - * serialization of a private key, such that it's still possible to derive the privateKey - * to recover those funds. - * - * @param {string|number} arg - * @param {boolean?} hardened - */ -HDPrivateKey.prototype.deriveNonCompliantChild = function(arg, hardened) { - if (_.isNumber(arg)) { - return this._deriveWithNumber(arg, hardened, true); - } else if (_.isString(arg)) { - return this._deriveFromString(arg, true); - } else { - throw new hdErrors.InvalidDerivationArgument(arg); - } -}; - -HDPrivateKey.prototype._deriveWithNumber = function(index, hardened, nonCompliant) { - /* jshint maxstatements: 20 */ - /* jshint maxcomplexity: 10 */ - if (!HDPrivateKey.isValidPath(index, hardened)) { - throw new hdErrors.InvalidPath(index); - } - - hardened = index >= HDPrivateKey.Hardened ? true : hardened; - if (index < HDPrivateKey.Hardened && hardened === true) { - index += HDPrivateKey.Hardened; - } - - var indexBuffer = BufferUtil.integerAsBuffer(index); - var data; - if (hardened && nonCompliant) { - // The private key serialization in this case will not be exactly 32 bytes and can be - // any value less, and the value is not zero-padded. - var nonZeroPadded = this.privateKey.bn.toBuffer(); - data = BufferUtil.concat([new buffer.Buffer([0]), nonZeroPadded, indexBuffer]); - } else if (hardened) { - // This will use a 32 byte zero padded serialization of the private key - var privateKeyBuffer = this.privateKey.bn.toBuffer({size: 32}); - assert(privateKeyBuffer.length === 32, 'length of private key buffer is expected to be 32 bytes'); - data = BufferUtil.concat([new buffer.Buffer([0]), privateKeyBuffer, indexBuffer]); - } else { - data = BufferUtil.concat([this.publicKey.toBuffer(), indexBuffer]); - } - var hash = Hash.sha512hmac(data, this._buffers.chainCode); - var leftPart = BN.fromBuffer(hash.slice(0, 32), { - size: 32 - }); - var chainCode = hash.slice(32, 64); - - var privateKey = leftPart.add(this.privateKey.toBigNumber()).umod(Point.getN()).toBuffer({ - size: 32 - }); - - if (!PrivateKey.isValid(privateKey)) { - // Index at this point is already hardened, we can pass null as the hardened arg - return this._deriveWithNumber(index + 1, null, nonCompliant); - } - - var derived = new HDPrivateKey({ - network: this.network, - depth: this.depth + 1, - parentFingerPrint: this.fingerPrint, - childIndex: index, - chainCode: chainCode, - privateKey: privateKey - }); - - return derived; -}; - -HDPrivateKey.prototype._deriveFromString = function(path, nonCompliant) { - if (!HDPrivateKey.isValidPath(path)) { - throw new hdErrors.InvalidPath(path); - } - - var indexes = HDPrivateKey._getDerivationIndexes(path); - var derived = indexes.reduce(function(prev, index) { - return prev._deriveWithNumber(index, null, nonCompliant); - }, this); - - return derived; -}; - -/** - * Verifies that a given serialized private key in base58 with checksum format - * is valid. - * - * @param {string|Buffer} data - the serialized private key - * @param {string|Network=} network - optional, if present, checks that the - * network provided matches the network serialized. - * @return {boolean} - */ -HDPrivateKey.isValidSerialized = function(data, network) { - return !HDPrivateKey.getSerializedError(data, network); -}; - -/** - * Checks what's the error that causes the validation of a serialized private key - * in base58 with checksum to fail. - * - * @param {string|Buffer} data - the serialized private key - * @param {string|Network=} network - optional, if present, checks that the - * network provided matches the network serialized. - * @return {errors.InvalidArgument|null} - */ -HDPrivateKey.getSerializedError = function(data, network) { - /* jshint maxcomplexity: 10 */ - if (!(_.isString(data) || BufferUtil.isBuffer(data))) { - return new hdErrors.UnrecognizedArgument('Expected string or buffer'); - } - if (!Base58.validCharacters(data)) { - return new errors.InvalidB58Char('(unknown)', data); - } - try { - data = Base58Check.decode(data); - } catch (e) { - return new errors.InvalidB58Checksum(data); - } - if (data.length !== HDPrivateKey.DataLength) { - return new hdErrors.InvalidLength(data); - } - if (!_.isUndefined(network)) { - var error = HDPrivateKey._validateNetwork(data, network); - if (error) { - return error; - } - } - return null; -}; - -HDPrivateKey._validateNetwork = function(data, networkArg) { - var network = Network.get(networkArg); - if (!network) { - return new errors.InvalidNetworkArgument(networkArg); - } - var version = data.slice(0, 4); - if (BufferUtil.integerFromBuffer(version) !== network.xprivkey) { - return new errors.InvalidNetwork(version); - } - return null; -}; - -HDPrivateKey.fromString = function(arg) { - $.checkArgument(_.isString(arg), 'No valid string was provided'); - return new HDPrivateKey(arg); -}; - -HDPrivateKey.fromObject = function(arg) { - $.checkArgument(_.isObject(arg), 'No valid argument was provided'); - return new HDPrivateKey(arg); -}; - -HDPrivateKey.prototype._buildFromJSON = function(arg) { - return this._buildFromObject(JSON.parse(arg)); -}; - -HDPrivateKey.prototype._buildFromObject = function(arg) { - /* jshint maxcomplexity: 12 */ - // TODO: Type validation - var buffers = { - version: arg.network ? BufferUtil.integerAsBuffer(Network.get(arg.network).xprivkey) : arg.version, - depth: _.isNumber(arg.depth) ? BufferUtil.integerAsSingleByteBuffer(arg.depth) : arg.depth, - parentFingerPrint: _.isNumber(arg.parentFingerPrint) ? BufferUtil.integerAsBuffer(arg.parentFingerPrint) : arg.parentFingerPrint, - childIndex: _.isNumber(arg.childIndex) ? BufferUtil.integerAsBuffer(arg.childIndex) : arg.childIndex, - chainCode: _.isString(arg.chainCode) ? BufferUtil.hexToBuffer(arg.chainCode) : arg.chainCode, - privateKey: (_.isString(arg.privateKey) && JSUtil.isHexa(arg.privateKey)) ? BufferUtil.hexToBuffer(arg.privateKey) : arg.privateKey, - checksum: arg.checksum ? (arg.checksum.length ? arg.checksum : BufferUtil.integerAsBuffer(arg.checksum)) : undefined - }; - return this._buildFromBuffers(buffers); -}; - -HDPrivateKey.prototype._buildFromSerialized = function(arg) { - var decoded = Base58Check.decode(arg); - var buffers = { - version: decoded.slice(HDPrivateKey.VersionStart, HDPrivateKey.VersionEnd), - depth: decoded.slice(HDPrivateKey.DepthStart, HDPrivateKey.DepthEnd), - parentFingerPrint: decoded.slice(HDPrivateKey.ParentFingerPrintStart, - HDPrivateKey.ParentFingerPrintEnd), - childIndex: decoded.slice(HDPrivateKey.ChildIndexStart, HDPrivateKey.ChildIndexEnd), - chainCode: decoded.slice(HDPrivateKey.ChainCodeStart, HDPrivateKey.ChainCodeEnd), - privateKey: decoded.slice(HDPrivateKey.PrivateKeyStart, HDPrivateKey.PrivateKeyEnd), - checksum: decoded.slice(HDPrivateKey.ChecksumStart, HDPrivateKey.ChecksumEnd), - xprivkey: arg - }; - return this._buildFromBuffers(buffers); -}; - -HDPrivateKey.prototype._generateRandomly = function(network) { - return HDPrivateKey.fromSeed(Random.getRandomBuffer(64), network); -}; - -/** - * Generate a private key from a seed, as described in BIP32 - * - * @param {string|Buffer} hexa - * @param {*} network - * @return HDPrivateKey - */ -HDPrivateKey.fromSeed = function(hexa, network) { - /* jshint maxcomplexity: 8 */ - if (JSUtil.isHexaString(hexa)) { - hexa = BufferUtil.hexToBuffer(hexa); - } - if (!Buffer.isBuffer(hexa)) { - throw new hdErrors.InvalidEntropyArgument(hexa); - } - if (hexa.length < MINIMUM_ENTROPY_BITS * BITS_TO_BYTES) { - throw new hdErrors.InvalidEntropyArgument.NotEnoughEntropy(hexa); - } - if (hexa.length > MAXIMUM_ENTROPY_BITS * BITS_TO_BYTES) { - throw new hdErrors.InvalidEntropyArgument.TooMuchEntropy(hexa); - } - var hash = Hash.sha512hmac(hexa, new buffer.Buffer('Bitcoin seed')); - - return new HDPrivateKey({ - network: Network.get(network) || Network.defaultNetwork, - depth: 0, - parentFingerPrint: 0, - childIndex: 0, - privateKey: hash.slice(0, 32), - chainCode: hash.slice(32, 64) - }); -}; - - - -HDPrivateKey.prototype._calcHDPublicKey = function() { - if (!this._hdPublicKey) { - var HDPublicKey = require('./hdpublickey'); - this._hdPublicKey = new HDPublicKey(this); - } -}; - -/** - * Receives a object with buffers in all the properties and populates the - * internal structure - * - * @param {Object} arg - * @param {buffer.Buffer} arg.version - * @param {buffer.Buffer} arg.depth - * @param {buffer.Buffer} arg.parentFingerPrint - * @param {buffer.Buffer} arg.childIndex - * @param {buffer.Buffer} arg.chainCode - * @param {buffer.Buffer} arg.privateKey - * @param {buffer.Buffer} arg.checksum - * @param {string=} arg.xprivkey - if set, don't recalculate the base58 - * representation - * @return {HDPrivateKey} this - */ -HDPrivateKey.prototype._buildFromBuffers = function(arg) { - /* jshint maxcomplexity: 8 */ - /* jshint maxstatements: 20 */ - - HDPrivateKey._validateBufferArguments(arg); - - JSUtil.defineImmutable(this, { - _buffers: arg - }); - - var sequence = [ - arg.version, arg.depth, arg.parentFingerPrint, arg.childIndex, arg.chainCode, - BufferUtil.emptyBuffer(1), arg.privateKey - ]; - var concat = buffer.Buffer.concat(sequence); - if (!arg.checksum || !arg.checksum.length) { - arg.checksum = Base58Check.checksum(concat); - } else { - if (arg.checksum.toString() !== Base58Check.checksum(concat).toString()) { - throw new errors.InvalidB58Checksum(concat); - } - } - - var network = Network.get(BufferUtil.integerFromBuffer(arg.version)); - var xprivkey; - xprivkey = Base58Check.encode(buffer.Buffer.concat(sequence)); - arg.xprivkey = Buffer.from(xprivkey); - - var privateKey = new PrivateKey(BN.fromBuffer(arg.privateKey), network); - var publicKey = privateKey.toPublicKey(); - var size = HDPrivateKey.ParentFingerPrintSize; - var fingerPrint = Hash.sha256ripemd160(publicKey.toBuffer()).slice(0, size); - - JSUtil.defineImmutable(this, { - xprivkey: xprivkey, - network: network, - depth: BufferUtil.integerFromSingleByteBuffer(arg.depth), - privateKey: privateKey, - publicKey: publicKey, - fingerPrint: fingerPrint - }); - - this._hdPublicKey = null; - - Object.defineProperty(this, 'hdPublicKey', { - configurable: false, - enumerable: true, - get: function() { - this._calcHDPublicKey(); - return this._hdPublicKey; - } - }); - Object.defineProperty(this, 'xpubkey', { - configurable: false, - enumerable: true, - get: function() { - this._calcHDPublicKey(); - return this._hdPublicKey.xpubkey; - } - }); - return this; -}; - -HDPrivateKey._validateBufferArguments = function(arg) { - var checkBuffer = function(name, size) { - var buff = arg[name]; - assert(BufferUtil.isBuffer(buff), name + ' argument is not a buffer'); - assert( - buff.length === size, - name + ' has not the expected size: found ' + buff.length + ', expected ' + size - ); - }; - checkBuffer('version', HDPrivateKey.VersionSize); - checkBuffer('depth', HDPrivateKey.DepthSize); - checkBuffer('parentFingerPrint', HDPrivateKey.ParentFingerPrintSize); - checkBuffer('childIndex', HDPrivateKey.ChildIndexSize); - checkBuffer('chainCode', HDPrivateKey.ChainCodeSize); - checkBuffer('privateKey', HDPrivateKey.PrivateKeySize); - if (arg.checksum && arg.checksum.length) { - checkBuffer('checksum', HDPrivateKey.CheckSumSize); - } -}; - -/** - * Returns the string representation of this private key (a string starting - * with "xprv..." - * - * @return string - */ -HDPrivateKey.prototype.toString = function() { - return this.xprivkey; -}; - -/** - * Returns the console representation of this extended private key. - * @return string - */ -HDPrivateKey.prototype.inspect = function() { - return ''; -}; - -/** - * Returns a plain object with a representation of this private key. - * - * Fields include:
    - *
  • network: either 'livenet' or 'testnet' - *
  • depth: a number ranging from 0 to 255 - *
  • fingerPrint: a number ranging from 0 to 2^32-1, taken from the hash of the - *
  • associated public key - *
  • parentFingerPrint: a number ranging from 0 to 2^32-1, taken from the hash - *
  • of this parent's associated public key or zero. - *
  • childIndex: the index from which this child was derived (or zero) - *
  • chainCode: an hexa string representing a number used in the derivation - *
  • privateKey: the private key associated, in hexa representation - *
  • xprivkey: the representation of this extended private key in checksum - *
  • base58 format - *
  • checksum: the base58 checksum of xprivkey - *
- * @return {Object} - */ -HDPrivateKey.prototype.toObject = HDPrivateKey.prototype.toJSON = function toObject() { - return { - network: Network.get(BufferUtil.integerFromBuffer(this._buffers.version), 'xprivkey').name, - depth: BufferUtil.integerFromSingleByteBuffer(this._buffers.depth), - fingerPrint: BufferUtil.integerFromBuffer(this.fingerPrint), - parentFingerPrint: BufferUtil.integerFromBuffer(this._buffers.parentFingerPrint), - childIndex: BufferUtil.integerFromBuffer(this._buffers.childIndex), - chainCode: BufferUtil.bufferToHex(this._buffers.chainCode), - privateKey: this.privateKey.toBuffer().toString('hex'), - checksum: BufferUtil.integerFromBuffer(this._buffers.checksum), - xprivkey: this.xprivkey - }; -}; - -/** - * Build a HDPrivateKey from a buffer - * - * @param {Buffer} arg - * @return {HDPrivateKey} - */ -HDPrivateKey.fromBuffer = function(arg) { - return new HDPrivateKey(arg.toString()); -}; - -/** - * Returns a buffer representation of the HDPrivateKey - * - * @return {string} - */ -HDPrivateKey.prototype.toBuffer = function() { - return BufferUtil.copy(this._buffers.xprivkey); -}; - -HDPrivateKey.DefaultDepth = 0; -HDPrivateKey.DefaultFingerprint = 0; -HDPrivateKey.DefaultChildIndex = 0; -HDPrivateKey.Hardened = 0x80000000; -HDPrivateKey.MaxIndex = 2 * HDPrivateKey.Hardened; - -HDPrivateKey.RootElementAlias = ['m', 'M', 'm\'', 'M\'']; - -HDPrivateKey.VersionSize = 4; -HDPrivateKey.DepthSize = 1; -HDPrivateKey.ParentFingerPrintSize = 4; -HDPrivateKey.ChildIndexSize = 4; -HDPrivateKey.ChainCodeSize = 32; -HDPrivateKey.PrivateKeySize = 32; -HDPrivateKey.CheckSumSize = 4; - -HDPrivateKey.DataLength = 78; -HDPrivateKey.SerializedByteSize = 82; - -HDPrivateKey.VersionStart = 0; -HDPrivateKey.VersionEnd = HDPrivateKey.VersionStart + HDPrivateKey.VersionSize; -HDPrivateKey.DepthStart = HDPrivateKey.VersionEnd; -HDPrivateKey.DepthEnd = HDPrivateKey.DepthStart + HDPrivateKey.DepthSize; -HDPrivateKey.ParentFingerPrintStart = HDPrivateKey.DepthEnd; -HDPrivateKey.ParentFingerPrintEnd = HDPrivateKey.ParentFingerPrintStart + HDPrivateKey.ParentFingerPrintSize; -HDPrivateKey.ChildIndexStart = HDPrivateKey.ParentFingerPrintEnd; -HDPrivateKey.ChildIndexEnd = HDPrivateKey.ChildIndexStart + HDPrivateKey.ChildIndexSize; -HDPrivateKey.ChainCodeStart = HDPrivateKey.ChildIndexEnd; -HDPrivateKey.ChainCodeEnd = HDPrivateKey.ChainCodeStart + HDPrivateKey.ChainCodeSize; -HDPrivateKey.PrivateKeyStart = HDPrivateKey.ChainCodeEnd + 1; -HDPrivateKey.PrivateKeyEnd = HDPrivateKey.PrivateKeyStart + HDPrivateKey.PrivateKeySize; -HDPrivateKey.ChecksumStart = HDPrivateKey.PrivateKeyEnd; -HDPrivateKey.ChecksumEnd = HDPrivateKey.ChecksumStart + HDPrivateKey.CheckSumSize; - -assert(HDPrivateKey.ChecksumEnd === HDPrivateKey.SerializedByteSize); - -module.exports = HDPrivateKey; - -}).call(this,require("buffer").Buffer) -},{"./crypto/bn":271,"./crypto/hash":273,"./crypto/point":274,"./crypto/random":275,"./encoding/base58":277,"./encoding/base58check":278,"./errors":282,"./hdpublickey":285,"./networks":286,"./privatekey":288,"./util/buffer":308,"./util/js":309,"./util/preconditions":310,"assert":26,"buffer":146,"lodash":311}],285:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var _ = require('lodash'); -var $ = require('./util/preconditions'); - -var BN = require('./crypto/bn'); -var Base58 = require('./encoding/base58'); -var Base58Check = require('./encoding/base58check'); -var Hash = require('./crypto/hash'); -var HDPrivateKey = require('./hdprivatekey'); -var Network = require('./networks'); -var Point = require('./crypto/point'); -var PublicKey = require('./publickey'); - -var bitcoreErrors = require('./errors'); -var errors = bitcoreErrors; -var hdErrors = bitcoreErrors.HDPublicKey; -var assert = require('assert'); - -var JSUtil = require('./util/js'); -var BufferUtil = require('./util/buffer'); - -/** - * The representation of an hierarchically derived public key. - * - * See https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki - * - * @constructor - * @param {Object|string|Buffer} arg - */ -function HDPublicKey(arg) { - /* jshint maxcomplexity: 12 */ - /* jshint maxstatements: 20 */ - if (arg instanceof HDPublicKey) { - return arg; - } - if (!(this instanceof HDPublicKey)) { - return new HDPublicKey(arg); - } - if (arg) { - if (_.isString(arg) || BufferUtil.isBuffer(arg)) { - var error = HDPublicKey.getSerializedError(arg); - if (!error) { - return this._buildFromSerialized(arg); - } else if (BufferUtil.isBuffer(arg) && !HDPublicKey.getSerializedError(arg.toString())) { - return this._buildFromSerialized(arg.toString()); - } else { - if (error instanceof hdErrors.ArgumentIsPrivateExtended) { - return new HDPrivateKey(arg).hdPublicKey; - } - throw error; - } - } else { - if (_.isObject(arg)) { - if (arg instanceof HDPrivateKey) { - return this._buildFromPrivate(arg); - } else { - return this._buildFromObject(arg); - } - } else { - throw new hdErrors.UnrecognizedArgument(arg); - } - } - } else { - throw new hdErrors.MustSupplyArgument(); - } -} - -/** - * Verifies that a given path is valid. - * - * @param {string|number} arg - * @return {boolean} - */ -HDPublicKey.isValidPath = function(arg) { - if (_.isString(arg)) { - var indexes = HDPrivateKey._getDerivationIndexes(arg); - return indexes !== null && _.every(indexes, HDPublicKey.isValidPath); - } - - if (_.isNumber(arg)) { - return arg >= 0 && arg < HDPublicKey.Hardened; - } - - return false; -}; - -/** - * WARNING: This method is deprecated. Use deriveChild instead. - * - * - * Get a derivated child based on a string or number. - * - * If the first argument is a string, it's parsed as the full path of - * derivation. Valid values for this argument include "m" (which returns the - * same public key), "m/0/1/40/2/1000". - * - * Note that hardened keys can't be derived from a public extended key. - * - * If the first argument is a number, the child with that index will be - * derived. See the example usage for clarification. - * - * @example - * ```javascript - * var parent = new HDPublicKey('xpub...'); - * var child_0_1_2 = parent.derive(0).derive(1).derive(2); - * var copy_of_child_0_1_2 = parent.derive("m/0/1/2"); - * assert(child_0_1_2.xprivkey === copy_of_child_0_1_2); - * ``` - * - * @param {string|number} arg - */ -HDPublicKey.prototype.derive = function(arg, hardened) { - return this.deriveChild(arg, hardened); -}; - -/** - * WARNING: This method will not be officially supported until v1.0.0. - * - * - * Get a derivated child based on a string or number. - * - * If the first argument is a string, it's parsed as the full path of - * derivation. Valid values for this argument include "m" (which returns the - * same public key), "m/0/1/40/2/1000". - * - * Note that hardened keys can't be derived from a public extended key. - * - * If the first argument is a number, the child with that index will be - * derived. See the example usage for clarification. - * - * @example - * ```javascript - * var parent = new HDPublicKey('xpub...'); - * var child_0_1_2 = parent.deriveChild(0).deriveChild(1).deriveChild(2); - * var copy_of_child_0_1_2 = parent.deriveChild("m/0/1/2"); - * assert(child_0_1_2.xprivkey === copy_of_child_0_1_2); - * ``` - * - * @param {string|number} arg - */ -HDPublicKey.prototype.deriveChild = function(arg, hardened) { - if (_.isNumber(arg)) { - return this._deriveWithNumber(arg, hardened); - } else if (_.isString(arg)) { - return this._deriveFromString(arg); - } else { - throw new hdErrors.InvalidDerivationArgument(arg); - } -}; - -HDPublicKey.prototype._deriveWithNumber = function(index, hardened) { - if (index >= HDPublicKey.Hardened || hardened) { - throw new hdErrors.InvalidIndexCantDeriveHardened(); - } - if (index < 0) { - throw new hdErrors.InvalidPath(index); - } - - var indexBuffer = BufferUtil.integerAsBuffer(index); - var data = BufferUtil.concat([this.publicKey.toBuffer(), indexBuffer]); - var hash = Hash.sha512hmac(data, this._buffers.chainCode); - var leftPart = BN.fromBuffer(hash.slice(0, 32), {size: 32}); - var chainCode = hash.slice(32, 64); - - var publicKey; - try { - publicKey = PublicKey.fromPoint(Point.getG().mul(leftPart).add(this.publicKey.point)); - } catch (e) { - return this._deriveWithNumber(index + 1); - } - - var derived = new HDPublicKey({ - network: this.network, - depth: this.depth + 1, - parentFingerPrint: this.fingerPrint, - childIndex: index, - chainCode: chainCode, - publicKey: publicKey - }); - - return derived; -}; - -HDPublicKey.prototype._deriveFromString = function(path) { - /* jshint maxcomplexity: 8 */ - if (_.includes(path, "'")) { - throw new hdErrors.InvalidIndexCantDeriveHardened(); - } else if (!HDPublicKey.isValidPath(path)) { - throw new hdErrors.InvalidPath(path); - } - - var indexes = HDPrivateKey._getDerivationIndexes(path); - var derived = indexes.reduce(function(prev, index) { - return prev._deriveWithNumber(index); - }, this); - - return derived; -}; - -/** - * Verifies that a given serialized public key in base58 with checksum format - * is valid. - * - * @param {string|Buffer} data - the serialized public key - * @param {string|Network=} network - optional, if present, checks that the - * network provided matches the network serialized. - * @return {boolean} - */ -HDPublicKey.isValidSerialized = function(data, network) { - return _.isNull(HDPublicKey.getSerializedError(data, network)); -}; - -/** - * Checks what's the error that causes the validation of a serialized public key - * in base58 with checksum to fail. - * - * @param {string|Buffer} data - the serialized public key - * @param {string|Network=} network - optional, if present, checks that the - * network provided matches the network serialized. - * @return {errors|null} - */ -HDPublicKey.getSerializedError = function(data, network) { - /* jshint maxcomplexity: 10 */ - /* jshint maxstatements: 20 */ - if (!(_.isString(data) || BufferUtil.isBuffer(data))) { - return new hdErrors.UnrecognizedArgument('expected buffer or string'); - } - if (!Base58.validCharacters(data)) { - return new errors.InvalidB58Char('(unknown)', data); - } - try { - data = Base58Check.decode(data); - } catch (e) { - return new errors.InvalidB58Checksum(data); - } - if (data.length !== HDPublicKey.DataSize) { - return new hdErrors.InvalidLength(data); - } - if (!_.isUndefined(network)) { - var error = HDPublicKey._validateNetwork(data, network); - if (error) { - return error; - } - } - var version = BufferUtil.integerFromBuffer(data.slice(0, 4)); - if (version === Network.livenet.xprivkey || version === Network.testnet.xprivkey ) { - return new hdErrors.ArgumentIsPrivateExtended(); - } - return null; -}; - -HDPublicKey._validateNetwork = function(data, networkArg) { - var network = Network.get(networkArg); - if (!network) { - return new errors.InvalidNetworkArgument(networkArg); - } - var version = data.slice(HDPublicKey.VersionStart, HDPublicKey.VersionEnd); - if (BufferUtil.integerFromBuffer(version) !== network.xpubkey) { - return new errors.InvalidNetwork(version); - } - return null; -}; - -HDPublicKey.prototype._buildFromPrivate = function (arg) { - var args = _.clone(arg._buffers); - var point = Point.getG().mul(BN.fromBuffer(args.privateKey)); - args.publicKey = Point.pointToCompressed(point); - args.version = BufferUtil.integerAsBuffer(Network.get(BufferUtil.integerFromBuffer(args.version)).xpubkey); - args.privateKey = undefined; - args.checksum = undefined; - args.xprivkey = undefined; - return this._buildFromBuffers(args); -}; - -HDPublicKey.prototype._buildFromObject = function(arg) { - /* jshint maxcomplexity: 10 */ - // TODO: Type validation - var buffers = { - version: arg.network ? BufferUtil.integerAsBuffer(Network.get(arg.network).xpubkey) : arg.version, - depth: _.isNumber(arg.depth) ? BufferUtil.integerAsSingleByteBuffer(arg.depth) : arg.depth, - parentFingerPrint: _.isNumber(arg.parentFingerPrint) ? BufferUtil.integerAsBuffer(arg.parentFingerPrint) : arg.parentFingerPrint, - childIndex: _.isNumber(arg.childIndex) ? BufferUtil.integerAsBuffer(arg.childIndex) : arg.childIndex, - chainCode: _.isString(arg.chainCode) ? BufferUtil.hexToBuffer(arg.chainCode) : arg.chainCode, - publicKey: _.isString(arg.publicKey) ? BufferUtil.hexToBuffer(arg.publicKey) : - BufferUtil.isBuffer(arg.publicKey) ? arg.publicKey : arg.publicKey.toBuffer(), - checksum: _.isNumber(arg.checksum) ? BufferUtil.integerAsBuffer(arg.checksum) : arg.checksum - }; - return this._buildFromBuffers(buffers); -}; - -HDPublicKey.prototype._buildFromSerialized = function(arg) { - var decoded = Base58Check.decode(arg); - var buffers = { - version: decoded.slice(HDPublicKey.VersionStart, HDPublicKey.VersionEnd), - depth: decoded.slice(HDPublicKey.DepthStart, HDPublicKey.DepthEnd), - parentFingerPrint: decoded.slice(HDPublicKey.ParentFingerPrintStart, - HDPublicKey.ParentFingerPrintEnd), - childIndex: decoded.slice(HDPublicKey.ChildIndexStart, HDPublicKey.ChildIndexEnd), - chainCode: decoded.slice(HDPublicKey.ChainCodeStart, HDPublicKey.ChainCodeEnd), - publicKey: decoded.slice(HDPublicKey.PublicKeyStart, HDPublicKey.PublicKeyEnd), - checksum: decoded.slice(HDPublicKey.ChecksumStart, HDPublicKey.ChecksumEnd), - xpubkey: arg - }; - return this._buildFromBuffers(buffers); -}; - -/** - * Receives a object with buffers in all the properties and populates the - * internal structure - * - * @param {Object} arg - * @param {buffer.Buffer} arg.version - * @param {buffer.Buffer} arg.depth - * @param {buffer.Buffer} arg.parentFingerPrint - * @param {buffer.Buffer} arg.childIndex - * @param {buffer.Buffer} arg.chainCode - * @param {buffer.Buffer} arg.publicKey - * @param {buffer.Buffer} arg.checksum - * @param {string=} arg.xpubkey - if set, don't recalculate the base58 - * representation - * @return {HDPublicKey} this - */ -HDPublicKey.prototype._buildFromBuffers = function(arg) { - /* jshint maxcomplexity: 8 */ - /* jshint maxstatements: 20 */ - - HDPublicKey._validateBufferArguments(arg); - - JSUtil.defineImmutable(this, { - _buffers: arg - }); - - var sequence = [ - arg.version, arg.depth, arg.parentFingerPrint, arg.childIndex, arg.chainCode, - arg.publicKey - ]; - var concat = BufferUtil.concat(sequence); - var checksum = Base58Check.checksum(concat); - if (!arg.checksum || !arg.checksum.length) { - arg.checksum = checksum; - } else { - if (arg.checksum.toString('hex') !== checksum.toString('hex')) { - throw new errors.InvalidB58Checksum(concat, checksum); - } - } - var network = Network.get(BufferUtil.integerFromBuffer(arg.version)); - - var xpubkey; - xpubkey = Base58Check.encode(BufferUtil.concat(sequence)); - arg.xpubkey = Buffer.from(xpubkey); - - var publicKey = new PublicKey(arg.publicKey, {network: network}); - var size = HDPublicKey.ParentFingerPrintSize; - var fingerPrint = Hash.sha256ripemd160(publicKey.toBuffer()).slice(0, size); - - JSUtil.defineImmutable(this, { - xpubkey: xpubkey, - network: network, - depth: BufferUtil.integerFromSingleByteBuffer(arg.depth), - publicKey: publicKey, - fingerPrint: fingerPrint - }); - - return this; -}; - -HDPublicKey._validateBufferArguments = function(arg) { - var checkBuffer = function(name, size) { - var buff = arg[name]; - assert(BufferUtil.isBuffer(buff), name + ' argument is not a buffer, it\'s ' + typeof buff); - assert( - buff.length === size, - name + ' has not the expected size: found ' + buff.length + ', expected ' + size - ); - }; - checkBuffer('version', HDPublicKey.VersionSize); - checkBuffer('depth', HDPublicKey.DepthSize); - checkBuffer('parentFingerPrint', HDPublicKey.ParentFingerPrintSize); - checkBuffer('childIndex', HDPublicKey.ChildIndexSize); - checkBuffer('chainCode', HDPublicKey.ChainCodeSize); - checkBuffer('publicKey', HDPublicKey.PublicKeySize); - if (arg.checksum && arg.checksum.length) { - checkBuffer('checksum', HDPublicKey.CheckSumSize); - } -}; - -HDPublicKey.fromString = function(arg) { - $.checkArgument(_.isString(arg), 'No valid string was provided'); - return new HDPublicKey(arg); -}; - -HDPublicKey.fromObject = function(arg) { - $.checkArgument(_.isObject(arg), 'No valid argument was provided'); - return new HDPublicKey(arg); -}; - -/** - * Returns the base58 checked representation of the public key - * @return {string} a string starting with "xpub..." in livenet - */ -HDPublicKey.prototype.toString = function() { - return this.xpubkey; -}; - -/** - * Returns the console representation of this extended public key. - * @return string - */ -HDPublicKey.prototype.inspect = function() { - return ''; -}; - -/** - * Returns a plain JavaScript object with information to reconstruct a key. - * - * Fields are:
    - *
  • network: 'livenet' or 'testnet' - *
  • depth: a number from 0 to 255, the depth to the master extended key - *
  • fingerPrint: a number of 32 bits taken from the hash of the public key - *
  • fingerPrint: a number of 32 bits taken from the hash of this key's - *
  • parent's public key - *
  • childIndex: index with which this key was derived - *
  • chainCode: string in hexa encoding used for derivation - *
  • publicKey: string, hexa encoded, in compressed key format - *
  • checksum: BufferUtil.integerFromBuffer(this._buffers.checksum), - *
  • xpubkey: the string with the base58 representation of this extended key - *
  • checksum: the base58 checksum of xpubkey - *
- */ -HDPublicKey.prototype.toObject = HDPublicKey.prototype.toJSON = function toObject() { - return { - network: Network.get(BufferUtil.integerFromBuffer(this._buffers.version)).name, - depth: BufferUtil.integerFromSingleByteBuffer(this._buffers.depth), - fingerPrint: BufferUtil.integerFromBuffer(this.fingerPrint), - parentFingerPrint: BufferUtil.integerFromBuffer(this._buffers.parentFingerPrint), - childIndex: BufferUtil.integerFromBuffer(this._buffers.childIndex), - chainCode: BufferUtil.bufferToHex(this._buffers.chainCode), - publicKey: this.publicKey.toString(), - checksum: BufferUtil.integerFromBuffer(this._buffers.checksum), - xpubkey: this.xpubkey - }; -}; - -/** - * Create a HDPublicKey from a buffer argument - * - * @param {Buffer} arg - * @return {HDPublicKey} - */ -HDPublicKey.fromBuffer = function(arg) { - return new HDPublicKey(arg); -}; - -/** - * Return a buffer representation of the xpubkey - * - * @return {Buffer} - */ -HDPublicKey.prototype.toBuffer = function() { - return BufferUtil.copy(this._buffers.xpubkey); -}; - -HDPublicKey.Hardened = 0x80000000; -HDPublicKey.RootElementAlias = ['m', 'M']; - -HDPublicKey.VersionSize = 4; -HDPublicKey.DepthSize = 1; -HDPublicKey.ParentFingerPrintSize = 4; -HDPublicKey.ChildIndexSize = 4; -HDPublicKey.ChainCodeSize = 32; -HDPublicKey.PublicKeySize = 33; -HDPublicKey.CheckSumSize = 4; - -HDPublicKey.DataSize = 78; -HDPublicKey.SerializedByteSize = 82; - -HDPublicKey.VersionStart = 0; -HDPublicKey.VersionEnd = HDPublicKey.VersionStart + HDPublicKey.VersionSize; -HDPublicKey.DepthStart = HDPublicKey.VersionEnd; -HDPublicKey.DepthEnd = HDPublicKey.DepthStart + HDPublicKey.DepthSize; -HDPublicKey.ParentFingerPrintStart = HDPublicKey.DepthEnd; -HDPublicKey.ParentFingerPrintEnd = HDPublicKey.ParentFingerPrintStart + HDPublicKey.ParentFingerPrintSize; -HDPublicKey.ChildIndexStart = HDPublicKey.ParentFingerPrintEnd; -HDPublicKey.ChildIndexEnd = HDPublicKey.ChildIndexStart + HDPublicKey.ChildIndexSize; -HDPublicKey.ChainCodeStart = HDPublicKey.ChildIndexEnd; -HDPublicKey.ChainCodeEnd = HDPublicKey.ChainCodeStart + HDPublicKey.ChainCodeSize; -HDPublicKey.PublicKeyStart = HDPublicKey.ChainCodeEnd; -HDPublicKey.PublicKeyEnd = HDPublicKey.PublicKeyStart + HDPublicKey.PublicKeySize; -HDPublicKey.ChecksumStart = HDPublicKey.PublicKeyEnd; -HDPublicKey.ChecksumEnd = HDPublicKey.ChecksumStart + HDPublicKey.CheckSumSize; - -assert(HDPublicKey.PublicKeyEnd === HDPublicKey.DataSize); -assert(HDPublicKey.ChecksumEnd === HDPublicKey.SerializedByteSize); - -module.exports = HDPublicKey; - -}).call(this,require("buffer").Buffer) -},{"./crypto/bn":271,"./crypto/hash":273,"./crypto/point":274,"./encoding/base58":277,"./encoding/base58check":278,"./errors":282,"./hdprivatekey":284,"./networks":286,"./publickey":289,"./util/buffer":308,"./util/js":309,"./util/preconditions":310,"assert":26,"buffer":146,"lodash":311}],286:[function(require,module,exports){ -'use strict'; -var _ = require('lodash'); - -var BufferUtil = require('./util/buffer'); -var JSUtil = require('./util/js'); -var networks = []; -var networkMaps = {}; - -/** - * A network is merely a map containing values that correspond to version - * numbers for each bitcoin network. Currently only supporting "livenet" - * (a.k.a. "mainnet") and "testnet". - * @constructor - */ -function Network() {} - -Network.prototype.toString = function toString() { - return this.name; -}; - -/** - * @function - * @member Networks#get - * Retrieves the network associated with a magic number or string. - * @param {string|number|Network} arg - * @param {string|Array} keys - if set, only check if the magic number associated with this name matches - * @return Network - */ -function get(arg, keys) { - if (~networks.indexOf(arg)) { - return arg; - } - if (keys) { - if (!_.isArray(keys)) { - keys = [keys]; - } - var containsArg = function(key) { - return networks[index][key] === arg; - }; - for (var index in networks) { - if (_.some(keys, containsArg)) { - return networks[index]; - } - } - return undefined; - } - return networkMaps[arg]; -} - -/** - * @function - * @member Networks#add - * Will add a custom Network - * @param {Object} data - * @param {string} data.name - The name of the network - * @param {string} data.alias - The aliased name of the network - * @param {Number} data.pubkeyhash - The publickey hash prefix - * @param {Number} data.privatekey - The privatekey prefix - * @param {Number} data.scripthash - The scripthash prefix - * @param {Number} data.xpubkey - The extended public key magic - * @param {Number} data.xprivkey - The extended private key magic - * @param {Number} data.networkMagic - The network magic number - * @param {Number} data.port - The network port - * @param {Array} data.dnsSeeds - An array of dns seeds - * @return Network - */ -function addNetwork(data) { - - var network = new Network(); - - JSUtil.defineImmutable(network, { - name: data.name, - alias: data.alias, - pubkeyhash: data.pubkeyhash, - privatekey: data.privatekey, - scripthash: data.scripthash, - xpubkey: data.xpubkey, - xprivkey: data.xprivkey - }); - - if (data.networkMagic) { - JSUtil.defineImmutable(network, { - networkMagic: BufferUtil.integerAsBuffer(data.networkMagic) - }); - } - - if (data.port) { - JSUtil.defineImmutable(network, { - port: data.port - }); - } - - if (data.dnsSeeds) { - JSUtil.defineImmutable(network, { - dnsSeeds: data.dnsSeeds - }); - } - _.each(network, function(value) { - if (!_.isUndefined(value) && !_.isObject(value)) { - networkMaps[value] = network; - } - }); - - networks.push(network); - - return network; - -} - -/** - * @function - * @member Networks#remove - * Will remove a custom network - * @param {Network} network - */ -function removeNetwork(network) { - for (var i = 0; i < networks.length; i++) { - if (networks[i] === network) { - networks.splice(i, 1); - } - } - for (var key in networkMaps) { - if (networkMaps[key] === network) { - delete networkMaps[key]; - } - } -} - -addNetwork({ - name: 'livenet', - alias: 'mainnet', - pubkeyhash: 0x00, - privatekey: 0x80, - scripthash: 0x05, - xpubkey: 0x0488b21e, - xprivkey: 0x0488ade4, - networkMagic: 0xf9beb4d9, - port: 8333, - dnsSeeds: [ - 'seed.bitcoin.sipa.be', - 'dnsseed.bluematt.me', - 'dnsseed.bitcoin.dashjr.org', - 'seed.bitcoinstats.com', - 'seed.bitnodes.io', - 'bitseed.xf2.org' - ] -}); - -/** - * @instance - * @member Networks#livenet - */ -var livenet = get('livenet'); - -addNetwork({ - name: 'testnet', - alias: 'regtest', - pubkeyhash: 0x6f, - privatekey: 0xef, - scripthash: 0xc4, - xpubkey: 0x043587cf, - xprivkey: 0x04358394 -}); - -/** - * @instance - * @member Networks#testnet - */ -var testnet = get('testnet'); - -// Add configurable values for testnet/regtest - -var TESTNET = { - PORT: 18333, - NETWORK_MAGIC: BufferUtil.integerAsBuffer(0x0b110907), - DNS_SEEDS: [ - 'testnet-seed.bitcoin.petertodd.org', - 'testnet-seed.bluematt.me', - 'testnet-seed.alexykot.me', - 'testnet-seed.bitcoin.schildbach.de' - ] -}; - -for (var key in TESTNET) { - if (!_.isObject(TESTNET[key])) { - networkMaps[TESTNET[key]] = testnet; - } -} - -var REGTEST = { - PORT: 18444, - NETWORK_MAGIC: BufferUtil.integerAsBuffer(0xfabfb5da), - DNS_SEEDS: [] -}; - -for (var key in REGTEST) { - if (!_.isObject(REGTEST[key])) { - networkMaps[REGTEST[key]] = testnet; - } -} - -Object.defineProperty(testnet, 'port', { - enumerable: true, - configurable: false, - get: function() { - if (this.regtestEnabled) { - return REGTEST.PORT; - } else { - return TESTNET.PORT; - } - } -}); - -Object.defineProperty(testnet, 'networkMagic', { - enumerable: true, - configurable: false, - get: function() { - if (this.regtestEnabled) { - return REGTEST.NETWORK_MAGIC; - } else { - return TESTNET.NETWORK_MAGIC; - } - } -}); - -Object.defineProperty(testnet, 'dnsSeeds', { - enumerable: true, - configurable: false, - get: function() { - if (this.regtestEnabled) { - return REGTEST.DNS_SEEDS; - } else { - return TESTNET.DNS_SEEDS; - } - } -}); - -/** - * @function - * @member Networks#enableRegtest - * Will enable regtest features for testnet - */ -function enableRegtest() { - testnet.regtestEnabled = true; -} - -/** - * @function - * @member Networks#disableRegtest - * Will disable regtest features for testnet - */ -function disableRegtest() { - testnet.regtestEnabled = false; -} - -/** - * @namespace Networks - */ -module.exports = { - add: addNetwork, - remove: removeNetwork, - defaultNetwork: livenet, - livenet: livenet, - mainnet: livenet, - testnet: testnet, - get: get, - enableRegtest: enableRegtest, - disableRegtest: disableRegtest -}; - -},{"./util/buffer":308,"./util/js":309,"lodash":311}],287:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var _ = require('lodash'); -var $ = require('./util/preconditions'); -var BufferUtil = require('./util/buffer'); -var JSUtil = require('./util/js'); - -function Opcode(num) { - if (!(this instanceof Opcode)) { - return new Opcode(num); - } - - var value; - - if (_.isNumber(num)) { - value = num; - } else if (_.isString(num)) { - value = Opcode.map[num]; - } else { - throw new TypeError('Unrecognized num type: "' + typeof(num) + '" for Opcode'); - } - - JSUtil.defineImmutable(this, { - num: value - }); - - return this; -} - -Opcode.fromBuffer = function(buf) { - $.checkArgument(BufferUtil.isBuffer(buf)); - return new Opcode(Number('0x' + buf.toString('hex'))); -}; - -Opcode.fromNumber = function(num) { - $.checkArgument(_.isNumber(num)); - return new Opcode(num); -}; - -Opcode.fromString = function(str) { - $.checkArgument(_.isString(str)); - var value = Opcode.map[str]; - if (typeof value === 'undefined') { - throw new TypeError('Invalid opcodestr'); - } - return new Opcode(value); -}; - -Opcode.prototype.toHex = function() { - return this.num.toString(16); -}; - -Opcode.prototype.toBuffer = function() { - return Buffer.from(this.toHex(), 'hex'); -}; - -Opcode.prototype.toNumber = function() { - return this.num; -}; - -Opcode.prototype.toString = function() { - var str = Opcode.reverseMap[this.num]; - if (typeof str === 'undefined') { - throw new Error('Opcode does not have a string representation'); - } - return str; -}; - -Opcode.smallInt = function(n) { - $.checkArgument(_.isNumber(n), 'Invalid Argument: n should be number'); - $.checkArgument(n >= 0 && n <= 16, 'Invalid Argument: n must be between 0 and 16'); - if (n === 0) { - return Opcode('OP_0'); - } - return new Opcode(Opcode.map.OP_1 + n - 1); -}; - -Opcode.map = { - // push value - OP_FALSE: 0, - OP_0: 0, - OP_PUSHDATA1: 76, - OP_PUSHDATA2: 77, - OP_PUSHDATA4: 78, - OP_1NEGATE: 79, - OP_RESERVED: 80, - OP_TRUE: 81, - OP_1: 81, - OP_2: 82, - OP_3: 83, - OP_4: 84, - OP_5: 85, - OP_6: 86, - OP_7: 87, - OP_8: 88, - OP_9: 89, - OP_10: 90, - OP_11: 91, - OP_12: 92, - OP_13: 93, - OP_14: 94, - OP_15: 95, - OP_16: 96, - - // control - OP_NOP: 97, - OP_VER: 98, - OP_IF: 99, - OP_NOTIF: 100, - OP_VERIF: 101, - OP_VERNOTIF: 102, - OP_ELSE: 103, - OP_ENDIF: 104, - OP_VERIFY: 105, - OP_RETURN: 106, - - // stack ops - OP_TOALTSTACK: 107, - OP_FROMALTSTACK: 108, - OP_2DROP: 109, - OP_2DUP: 110, - OP_3DUP: 111, - OP_2OVER: 112, - OP_2ROT: 113, - OP_2SWAP: 114, - OP_IFDUP: 115, - OP_DEPTH: 116, - OP_DROP: 117, - OP_DUP: 118, - OP_NIP: 119, - OP_OVER: 120, - OP_PICK: 121, - OP_ROLL: 122, - OP_ROT: 123, - OP_SWAP: 124, - OP_TUCK: 125, - - // splice ops - OP_CAT: 126, - OP_SUBSTR: 127, - OP_LEFT: 128, - OP_RIGHT: 129, - OP_SIZE: 130, - - // bit logic - OP_INVERT: 131, - OP_AND: 132, - OP_OR: 133, - OP_XOR: 134, - OP_EQUAL: 135, - OP_EQUALVERIFY: 136, - OP_RESERVED1: 137, - OP_RESERVED2: 138, - - // numeric - OP_1ADD: 139, - OP_1SUB: 140, - OP_2MUL: 141, - OP_2DIV: 142, - OP_NEGATE: 143, - OP_ABS: 144, - OP_NOT: 145, - OP_0NOTEQUAL: 146, - - OP_ADD: 147, - OP_SUB: 148, - OP_MUL: 149, - OP_DIV: 150, - OP_MOD: 151, - OP_LSHIFT: 152, - OP_RSHIFT: 153, - - OP_BOOLAND: 154, - OP_BOOLOR: 155, - OP_NUMEQUAL: 156, - OP_NUMEQUALVERIFY: 157, - OP_NUMNOTEQUAL: 158, - OP_LESSTHAN: 159, - OP_GREATERTHAN: 160, - OP_LESSTHANOREQUAL: 161, - OP_GREATERTHANOREQUAL: 162, - OP_MIN: 163, - OP_MAX: 164, - - OP_WITHIN: 165, - - // crypto - OP_RIPEMD160: 166, - OP_SHA1: 167, - OP_SHA256: 168, - OP_HASH160: 169, - OP_HASH256: 170, - OP_CODESEPARATOR: 171, - OP_CHECKSIG: 172, - OP_CHECKSIGVERIFY: 173, - OP_CHECKMULTISIG: 174, - OP_CHECKMULTISIGVERIFY: 175, - - OP_CHECKLOCKTIMEVERIFY: 177, - OP_CHECKSEQUENCEVERIFY: 178, - - // expansion - OP_NOP1: 176, - OP_NOP2: 177, - OP_NOP3: 178, - OP_NOP4: 179, - OP_NOP5: 180, - OP_NOP6: 181, - OP_NOP7: 182, - OP_NOP8: 183, - OP_NOP9: 184, - OP_NOP10: 185, - - // template matching params - OP_PUBKEYHASH: 253, - OP_PUBKEY: 254, - OP_INVALIDOPCODE: 255 -}; - -Opcode.reverseMap = []; - -for (var k in Opcode.map) { - Opcode.reverseMap[Opcode.map[k]] = k; -} - -// Easier access to opcodes -_.extend(Opcode, Opcode.map); - -/** - * @returns true if opcode is one of OP_0, OP_1, ..., OP_16 - */ -Opcode.isSmallIntOp = function(opcode) { - if (opcode instanceof Opcode) { - opcode = opcode.toNumber(); - } - return ((opcode === Opcode.map.OP_0) || - ((opcode >= Opcode.map.OP_1) && (opcode <= Opcode.map.OP_16))); -}; - -/** - * Will return a string formatted for the console - * - * @returns {string} Script opcode - */ -Opcode.prototype.inspect = function() { - return ''; -}; - -module.exports = Opcode; - -}).call(this,require("buffer").Buffer) -},{"./util/buffer":308,"./util/js":309,"./util/preconditions":310,"buffer":146,"lodash":311}],288:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var _ = require('lodash'); -var Address = require('./address'); -var Base58Check = require('./encoding/base58check'); -var BN = require('./crypto/bn'); -var JSUtil = require('./util/js'); -var Networks = require('./networks'); -var Point = require('./crypto/point'); -var PublicKey = require('./publickey'); -var Random = require('./crypto/random'); -var $ = require('./util/preconditions'); - -/** - * Instantiate a PrivateKey from a BN, Buffer and WIF. - * - * @example - * ```javascript - * // generate a new random key - * var key = PrivateKey(); - * - * // get the associated address - * var address = key.toAddress(); - * - * // encode into wallet export format - * var exported = key.toWIF(); - * - * // instantiate from the exported (and saved) private key - * var imported = PrivateKey.fromWIF(exported); - * ``` - * - * @param {string} data - The encoded data in various formats - * @param {Network|string=} network - a {@link Network} object, or a string with the network name - * @returns {PrivateKey} A new valid instance of an PrivateKey - * @constructor - */ -function PrivateKey(data, network) { - /* jshint maxstatements: 20 */ - /* jshint maxcomplexity: 8 */ - - if (!(this instanceof PrivateKey)) { - return new PrivateKey(data, network); - } - if (data instanceof PrivateKey) { - return data; - } - - var info = this._classifyArguments(data, network); - - // validation - if (!info.bn || info.bn.cmp(new BN(0)) === 0){ - throw new TypeError('Number can not be equal to zero, undefined, null or false'); - } - if (!info.bn.lt(Point.getN())) { - throw new TypeError('Number must be less than N'); - } - if (typeof(info.network) === 'undefined') { - throw new TypeError('Must specify the network ("livenet" or "testnet")'); - } - - JSUtil.defineImmutable(this, { - bn: info.bn, - compressed: info.compressed, - network: info.network - }); - - Object.defineProperty(this, 'publicKey', { - configurable: false, - enumerable: true, - get: this.toPublicKey.bind(this) - }); - - return this; - -}; - -/** - * Internal helper to instantiate PrivateKey internal `info` object from - * different kinds of arguments passed to the constructor. - * - * @param {*} data - * @param {Network|string=} network - a {@link Network} object, or a string with the network name - * @return {Object} - */ -PrivateKey.prototype._classifyArguments = function(data, network) { - /* jshint maxcomplexity: 10 */ - var info = { - compressed: true, - network: network ? Networks.get(network) : Networks.defaultNetwork - }; - - // detect type of data - if (_.isUndefined(data) || _.isNull(data)){ - info.bn = PrivateKey._getRandomBN(); - } else if (data instanceof BN) { - info.bn = data; - } else if (data instanceof Buffer || data instanceof Uint8Array) { - info = PrivateKey._transformBuffer(data, network); - } else if (data.bn && data.network){ - info = PrivateKey._transformObject(data); - } else if (!network && Networks.get(data)) { - info.bn = PrivateKey._getRandomBN(); - info.network = Networks.get(data); - } else if (typeof(data) === 'string'){ - if (JSUtil.isHexa(data)) { - info.bn = new BN(Buffer.from(data, 'hex')); - } else { - info = PrivateKey._transformWIF(data, network); - } - } else { - throw new TypeError('First argument is an unrecognized data type.'); - } - return info; -}; - -/** - * Internal function to get a random Big Number (BN) - * - * @returns {BN} A new randomly generated BN - * @private - */ -PrivateKey._getRandomBN = function(){ - var condition; - var bn; - do { - var privbuf = Random.getRandomBuffer(32); - bn = BN.fromBuffer(privbuf); - condition = bn.lt(Point.getN()); - } while (!condition); - return bn; -}; - -/** - * Internal function to transform a WIF Buffer into a private key - * - * @param {Buffer} buf - An WIF string - * @param {Network|string=} network - a {@link Network} object, or a string with the network name - * @returns {Object} An object with keys: bn, network and compressed - * @private - */ -PrivateKey._transformBuffer = function(buf, network) { - - var info = {}; - - if (buf.length === 32) { - return PrivateKey._transformBNBuffer(buf, network); - } - - info.network = Networks.get(buf[0], 'privatekey'); - - if (!info.network) { - throw new Error('Invalid network'); - } - - if (network && info.network !== Networks.get(network)) { - throw new TypeError('Private key network mismatch'); - } - - if (buf.length === 1 + 32 + 1 && buf[1 + 32 + 1 - 1] === 1) { - info.compressed = true; - } else if (buf.length === 1 + 32) { - info.compressed = false; - } else { - throw new Error('Length of buffer must be 33 (uncompressed) or 34 (compressed)'); - } - - info.bn = BN.fromBuffer(buf.slice(1, 32 + 1)); - - return info; -}; - -/** - * Internal function to transform a BN buffer into a private key - * - * @param {Buffer} buf - * @param {Network|string=} network - a {@link Network} object, or a string with the network name - * @returns {object} an Object with keys: bn, network, and compressed - * @private - */ -PrivateKey._transformBNBuffer = function(buf, network) { - var info = {}; - info.network = Networks.get(network) || Networks.defaultNetwork; - info.bn = BN.fromBuffer(buf); - info.compressed = false; - return info; -}; - -/** - * Internal function to transform a WIF string into a private key - * - * @param {string} buf - An WIF string - * @returns {Object} An object with keys: bn, network and compressed - * @private - */ -PrivateKey._transformWIF = function(str, network) { - return PrivateKey._transformBuffer(Base58Check.decode(str), network); -}; - -/** - * Instantiate a PrivateKey from a Buffer with the DER or WIF representation - * - * @param {Buffer} arg - * @param {Network} network - * @return {PrivateKey} - */ -PrivateKey.fromBuffer = function(arg, network) { - return new PrivateKey(arg, network); -}; - -/** - * Internal function to transform a JSON string on plain object into a private key - * return this. - * - * @param {string} json - A JSON string or plain object - * @returns {Object} An object with keys: bn, network and compressed - * @private - */ -PrivateKey._transformObject = function(json) { - var bn = new BN(json.bn, 'hex'); - var network = Networks.get(json.network); - return { - bn: bn, - network: network, - compressed: json.compressed - }; -}; - -/** - * Instantiate a PrivateKey from a WIF string - * - * @param {string} str - The WIF encoded private key string - * @returns {PrivateKey} A new valid instance of PrivateKey - */ -PrivateKey.fromString = PrivateKey.fromWIF = function(str) { - $.checkArgument(_.isString(str), 'First argument is expected to be a string.'); - return new PrivateKey(str); -}; - -/** - * Instantiate a PrivateKey from a plain JavaScript object - * - * @param {Object} obj - The output from privateKey.toObject() - */ -PrivateKey.fromObject = function(obj) { - $.checkArgument(_.isObject(obj), 'First argument is expected to be an object.'); - return new PrivateKey(obj); -}; - -/** - * Instantiate a PrivateKey from random bytes - * - * @param {string=} network - Either "livenet" or "testnet" - * @returns {PrivateKey} A new valid instance of PrivateKey - */ -PrivateKey.fromRandom = function(network) { - var bn = PrivateKey._getRandomBN(); - return new PrivateKey(bn, network); -}; - -/** - * Check if there would be any errors when initializing a PrivateKey - * - * @param {string} data - The encoded data in various formats - * @param {string=} network - Either "livenet" or "testnet" - * @returns {null|Error} An error if exists - */ - -PrivateKey.getValidationError = function(data, network) { - var error; - try { - /* jshint nonew: false */ - new PrivateKey(data, network); - } catch (e) { - error = e; - } - return error; -}; - -/** - * Check if the parameters are valid - * - * @param {string} data - The encoded data in various formats - * @param {string=} network - Either "livenet" or "testnet" - * @returns {Boolean} If the private key is would be valid - */ -PrivateKey.isValid = function(data, network){ - if (!data) { - return false; - } - return !PrivateKey.getValidationError(data, network); -}; - -/** - * Will output the PrivateKey encoded as hex string - * - * @returns {string} - */ -PrivateKey.prototype.toString = function() { - return this.toBuffer().toString('hex'); -}; - -/** - * Will output the PrivateKey to a WIF string - * - * @returns {string} A WIP representation of the private key - */ -PrivateKey.prototype.toWIF = function() { - var network = this.network; - var compressed = this.compressed; - - var buf; - if (compressed) { - buf = Buffer.concat([Buffer.from([network.privatekey]), - this.bn.toBuffer({size: 32}), - Buffer.from([0x01])]); - } else { - buf = Buffer.concat([Buffer.from([network.privatekey]), - this.bn.toBuffer({size: 32})]); - } - - return Base58Check.encode(buf); -}; - -/** - * Will return the private key as a BN instance - * - * @returns {BN} A BN instance of the private key - */ -PrivateKey.prototype.toBigNumber = function(){ - return this.bn; -}; - -/** - * Will return the private key as a BN buffer - * - * @returns {Buffer} A buffer of the private key - */ -PrivateKey.prototype.toBuffer = function(){ - // TODO: use `return this.bn.toBuffer({ size: 32 })` in v1.0.0 - return this.bn.toBuffer(); -}; - -/** - * WARNING: This method will not be officially supported until v1.0.0. - * - * - * Will return the private key as a BN buffer without leading zero padding - * - * @returns {Buffer} A buffer of the private key - */ -PrivateKey.prototype.toBufferNoPadding = function() { - return this.bn.toBuffer(); -}; - -/** - * Will return the corresponding public key - * - * @returns {PublicKey} A public key generated from the private key - */ -PrivateKey.prototype.toPublicKey = function(){ - if (!this._pubkey) { - this._pubkey = PublicKey.fromPrivateKey(this); - } - return this._pubkey; -}; - -/** - * Will return an address for the private key - * @param {Network=} network - optional parameter specifying - * the desired network for the address - * - * @returns {Address} An address generated from the private key - */ -PrivateKey.prototype.toAddress = function(network) { - var pubkey = this.toPublicKey(); - return Address.fromPublicKey(pubkey, network || this.network); -}; - -/** - * @returns {Object} A plain object representation - */ -PrivateKey.prototype.toObject = PrivateKey.prototype.toJSON = function toObject() { - return { - bn: this.bn.toString('hex'), - compressed: this.compressed, - network: this.network.toString() - }; -}; - -/** - * Will return a string formatted for the console - * - * @returns {string} Private key - */ -PrivateKey.prototype.inspect = function() { - var uncompressed = !this.compressed ? ', uncompressed' : ''; - return ''; -}; - -module.exports = PrivateKey; - -}).call(this,require("buffer").Buffer) -},{"./address":266,"./crypto/bn":271,"./crypto/point":274,"./crypto/random":275,"./encoding/base58check":278,"./networks":286,"./publickey":289,"./util/js":309,"./util/preconditions":310,"buffer":146,"lodash":311}],289:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var BN = require('./crypto/bn'); -var Point = require('./crypto/point'); -var Hash = require('./crypto/hash'); -var JSUtil = require('./util/js'); -var Network = require('./networks'); -var _ = require('lodash'); -var $ = require('./util/preconditions'); - -/** - * Instantiate a PublicKey from a {@link PrivateKey}, {@link Point}, `string`, or `Buffer`. - * - * There are two internal properties, `network` and `compressed`, that deal with importing - * a PublicKey from a PrivateKey in WIF format. More details described on {@link PrivateKey} - * - * @example - * ```javascript - * // instantiate from a private key - * var key = PublicKey(privateKey, true); - * - * // export to as a DER hex encoded string - * var exported = key.toString(); - * - * // import the public key - * var imported = PublicKey.fromString(exported); - * ``` - * - * @param {string} data - The encoded data in various formats - * @param {Object} extra - additional options - * @param {Network=} extra.network - Which network should the address for this public key be for - * @param {String=} extra.compressed - If the public key is compressed - * @returns {PublicKey} A new valid instance of an PublicKey - * @constructor - */ -function PublicKey(data, extra) { - - if (!(this instanceof PublicKey)) { - return new PublicKey(data, extra); - } - - $.checkArgument(data, 'First argument is required, please include public key data.'); - - if (data instanceof PublicKey) { - // Return copy, but as it's an immutable object, return same argument - return data; - } - extra = extra || {}; - - var info = this._classifyArgs(data, extra); - - // validation - info.point.validate(); - - JSUtil.defineImmutable(this, { - point: info.point, - compressed: info.compressed, - network: info.network || Network.defaultNetwork - }); - - return this; -}; - -/** - * Internal function to differentiate between arguments passed to the constructor - * @param {*} data - * @param {Object} extra - */ -PublicKey.prototype._classifyArgs = function(data, extra) { - /* jshint maxcomplexity: 10 */ - var info = { - compressed: _.isUndefined(extra.compressed) || extra.compressed - }; - - // detect type of data - if (data instanceof Point) { - info.point = data; - } else if (data.x && data.y) { - info = PublicKey._transformObject(data); - } else if (typeof(data) === 'string') { - info = PublicKey._transformDER(Buffer.from(data, 'hex')); - } else if (PublicKey._isBuffer(data)) { - info = PublicKey._transformDER(data); - } else if (PublicKey._isPrivateKey(data)) { - info = PublicKey._transformPrivateKey(data); - } else { - throw new TypeError('First argument is an unrecognized data format.'); - } - if (!info.network) { - info.network = _.isUndefined(extra.network) ? undefined : Network.get(extra.network); - } - return info; -}; - -/** - * Internal function to detect if an object is a {@link PrivateKey} - * - * @param {*} param - object to test - * @returns {boolean} - * @private - */ -PublicKey._isPrivateKey = function(param) { - var PrivateKey = require('./privatekey'); - return param instanceof PrivateKey; -}; - -/** - * Internal function to detect if an object is a Buffer - * - * @param {*} param - object to test - * @returns {boolean} - * @private - */ -PublicKey._isBuffer = function(param) { - return (param instanceof Buffer) || (param instanceof Uint8Array); -}; - -/** - * Internal function to transform a private key into a public key point - * - * @param {PrivateKey} privkey - An instance of PrivateKey - * @returns {Object} An object with keys: point and compressed - * @private - */ -PublicKey._transformPrivateKey = function(privkey) { - $.checkArgument(PublicKey._isPrivateKey(privkey), 'Must be an instance of PrivateKey'); - var info = {}; - info.point = Point.getG().mul(privkey.bn); - info.compressed = privkey.compressed; - info.network = privkey.network; - return info; -}; - -/** - * Internal function to transform DER into a public key point - * - * @param {Buffer} buf - An hex encoded buffer - * @param {bool=} strict - if set to false, will loosen some conditions - * @returns {Object} An object with keys: point and compressed - * @private - */ -PublicKey._transformDER = function(buf, strict) { - /* jshint maxstatements: 30 */ - /* jshint maxcomplexity: 12 */ - $.checkArgument(PublicKey._isBuffer(buf), 'Must be a hex buffer of DER encoded public key'); - var info = {}; - - strict = _.isUndefined(strict) ? true : strict; - - var x; - var y; - var xbuf; - var ybuf; - - if (buf[0] === 0x04 || (!strict && (buf[0] === 0x06 || buf[0] === 0x07))) { - xbuf = buf.slice(1, 33); - ybuf = buf.slice(33, 65); - if (xbuf.length !== 32 || ybuf.length !== 32 || buf.length !== 65) { - throw new TypeError('Length of x and y must be 32 bytes'); - } - x = new BN(xbuf); - y = new BN(ybuf); - info.point = new Point(x, y); - info.compressed = false; - } else if (buf[0] === 0x03) { - xbuf = buf.slice(1); - x = new BN(xbuf); - info = PublicKey._transformX(true, x); - info.compressed = true; - } else if (buf[0] === 0x02) { - xbuf = buf.slice(1); - x = new BN(xbuf); - info = PublicKey._transformX(false, x); - info.compressed = true; - } else { - throw new TypeError('Invalid DER format public key'); - } - return info; -}; - -/** - * Internal function to transform X into a public key point - * - * @param {Boolean} odd - If the point is above or below the x axis - * @param {Point} x - The x point - * @returns {Object} An object with keys: point and compressed - * @private - */ -PublicKey._transformX = function(odd, x) { - $.checkArgument(typeof odd === 'boolean', 'Must specify whether y is odd or not (true or false)'); - var info = {}; - info.point = Point.fromX(odd, x); - return info; -}; - -/** - * Internal function to transform a JSON into a public key point - * - * @param {String|Object} json - a JSON string or plain object - * @returns {Object} An object with keys: point and compressed - * @private - */ -PublicKey._transformObject = function(json) { - var x = new BN(json.x, 'hex'); - var y = new BN(json.y, 'hex'); - var point = new Point(x, y); - return new PublicKey(point, { - compressed: json.compressed - }); -}; - -/** - * Instantiate a PublicKey from a PrivateKey - * - * @param {PrivateKey} privkey - An instance of PrivateKey - * @returns {PublicKey} A new valid instance of PublicKey - */ -PublicKey.fromPrivateKey = function(privkey) { - $.checkArgument(PublicKey._isPrivateKey(privkey), 'Must be an instance of PrivateKey'); - var info = PublicKey._transformPrivateKey(privkey); - return new PublicKey(info.point, { - compressed: info.compressed, - network: info.network - }); -}; - -/** - * Instantiate a PublicKey from a Buffer - * @param {Buffer} buf - A DER hex buffer - * @param {bool=} strict - if set to false, will loosen some conditions - * @returns {PublicKey} A new valid instance of PublicKey - */ -PublicKey.fromDER = PublicKey.fromBuffer = function(buf, strict) { - $.checkArgument(PublicKey._isBuffer(buf), 'Must be a hex buffer of DER encoded public key'); - var info = PublicKey._transformDER(buf, strict); - return new PublicKey(info.point, { - compressed: info.compressed - }); -}; - -/** - * Instantiate a PublicKey from a Point - * - * @param {Point} point - A Point instance - * @param {boolean=} compressed - whether to store this public key as compressed format - * @returns {PublicKey} A new valid instance of PublicKey - */ -PublicKey.fromPoint = function(point, compressed) { - $.checkArgument(point instanceof Point, 'First argument must be an instance of Point.'); - return new PublicKey(point, { - compressed: compressed - }); -}; - -/** - * Instantiate a PublicKey from a DER hex encoded string - * - * @param {string} str - A DER hex string - * @param {String=} encoding - The type of string encoding - * @returns {PublicKey} A new valid instance of PublicKey - */ -PublicKey.fromString = function(str, encoding) { - var buf = Buffer.from(str, encoding || 'hex'); - var info = PublicKey._transformDER(buf); - return new PublicKey(info.point, { - compressed: info.compressed - }); -}; - -/** - * Instantiate a PublicKey from an X Point - * - * @param {Boolean} odd - If the point is above or below the x axis - * @param {Point} x - The x point - * @returns {PublicKey} A new valid instance of PublicKey - */ -PublicKey.fromX = function(odd, x) { - var info = PublicKey._transformX(odd, x); - return new PublicKey(info.point, { - compressed: info.compressed - }); -}; - -/** - * Check if there would be any errors when initializing a PublicKey - * - * @param {string} data - The encoded data in various formats - * @returns {null|Error} An error if exists - */ -PublicKey.getValidationError = function(data) { - var error; - try { - /* jshint nonew: false */ - new PublicKey(data); - } catch (e) { - error = e; - } - return error; -}; - -/** - * Check if the parameters are valid - * - * @param {string} data - The encoded data in various formats - * @returns {Boolean} If the public key would be valid - */ -PublicKey.isValid = function(data) { - return !PublicKey.getValidationError(data); -}; - -/** - * @returns {Object} A plain object of the PublicKey - */ -PublicKey.prototype.toObject = PublicKey.prototype.toJSON = function toObject() { - return { - x: this.point.getX().toString('hex', 2), - y: this.point.getY().toString('hex', 2), - compressed: this.compressed - }; -}; - -/** - * Will output the PublicKey to a DER Buffer - * - * @returns {Buffer} A DER hex encoded buffer - */ -PublicKey.prototype.toBuffer = PublicKey.prototype.toDER = function() { - var x = this.point.getX(); - var y = this.point.getY(); - - var xbuf = x.toBuffer({ - size: 32 - }); - var ybuf = y.toBuffer({ - size: 32 - }); - - var prefix; - if (!this.compressed) { - prefix = Buffer.from([0x04]); - return Buffer.concat([prefix, xbuf, ybuf]); - } else { - var odd = ybuf[ybuf.length - 1] % 2; - if (odd) { - prefix = Buffer.from([0x03]); - } else { - prefix = Buffer.from([0x02]); - } - return Buffer.concat([prefix, xbuf]); - } -}; - -/** - * Will return a sha256 + ripemd160 hash of the serialized public key - * @see https://github.com/bitcoin/bitcoin/blob/master/src/pubkey.h#L141 - * @returns {Buffer} - */ -PublicKey.prototype._getID = function _getID() { - return Hash.sha256ripemd160(this.toBuffer()); -}; - -/** - * Will return an address for the public key - * - * @param {String|Network=} network - Which network should the address be for - * @returns {Address} An address generated from the public key - */ -PublicKey.prototype.toAddress = function(network) { - var Address = require('./address'); - return Address.fromPublicKey(this, network || this.network); -}; - -/** - * Will output the PublicKey to a DER encoded hex string - * - * @returns {string} A DER hex encoded string - */ -PublicKey.prototype.toString = function() { - return this.toDER().toString('hex'); -}; - -/** - * Will return a string formatted for the console - * - * @returns {string} Public key - */ -PublicKey.prototype.inspect = function() { - return ''; -}; - - -module.exports = PublicKey; - -}).call(this,require("buffer").Buffer) -},{"./address":266,"./crypto/bn":271,"./crypto/hash":273,"./crypto/point":274,"./networks":286,"./privatekey":288,"./util/js":309,"./util/preconditions":310,"buffer":146,"lodash":311}],290:[function(require,module,exports){ -module.exports = require('./script'); - -module.exports.Interpreter = require('./interpreter'); - -},{"./interpreter":291,"./script":292}],291:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var _ = require('lodash'); - -var Script = require('./script'); -var Opcode = require('../opcode'); -var BN = require('../crypto/bn'); -var Hash = require('../crypto/hash'); -var Signature = require('../crypto/signature'); -var PublicKey = require('../publickey'); - -/** - * Bitcoin transactions contain scripts. Each input has a script called the - * scriptSig, and each output has a script called the scriptPubkey. To validate - * an input, the input's script is concatenated with the referenced output script, - * and the result is executed. If at the end of execution the stack contains a - * "true" value, then the transaction is valid. - * - * The primary way to use this class is via the verify function. - * e.g., Interpreter().verify( ... ); - */ -var Interpreter = function Interpreter(obj) { - if (!(this instanceof Interpreter)) { - return new Interpreter(obj); - } - if (obj) { - this.initialize(); - this.set(obj); - } else { - this.initialize(); - } -}; - -Interpreter.prototype.verifyWitnessProgram = function(version, program, witness, satoshis, flags) { - - var scriptPubKey = new Script(); - var stack = []; - - if (version === 0) { - if (program.length === 32) { - if (witness.length === 0) { - this.errstr = 'SCRIPT_ERR_WITNESS_PROGRAM_WITNESS_EMPTY'; - return false; - } - - var scriptPubKeyBuffer = witness[witness.length - 1]; - scriptPubKey = new Script(scriptPubKeyBuffer); - var hash = Hash.sha256(scriptPubKeyBuffer); - if (hash.toString('hex') !== program.toString('hex')) { - this.errstr = 'SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH'; - return false; - } - - stack = witness.slice(0, -1); - } else if (program.length === 20) { - if (witness.length !== 2) { - this.errstr = 'SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH'; - return false; - } - - scriptPubKey.add(Opcode.OP_DUP); - scriptPubKey.add(Opcode.OP_HASH160); - scriptPubKey.add(program); - scriptPubKey.add(Opcode.OP_EQUALVERIFY); - scriptPubKey.add(Opcode.OP_CHECKSIG); - - stack = witness; - - } else { - this.errstr = 'SCRIPT_ERR_WITNESS_PROGRAM_WRONG_LENGTH'; - return false; - } - } else if ((flags & Interpreter.SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM)) { - this.errstr = 'SCRIPT_ERR_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM'; - return false; - } else { - return true; - } - - this.initialize(); - - this.set({ - script: scriptPubKey, - stack: stack, - sigversion: 1, - satoshis: satoshis, - flags: flags, - }); - - if (!this.evaluate()) { - return false; - } - - if (this.stack.length !== 1) { - this.errstr = 'SCRIPT_ERR_EVAL_FALSE'; - return false; - } - - var buf = this.stack[this.stack.length - 1]; - if (!Interpreter.castToBool(buf)) { - this.errstr = 'SCRIPT_ERR_EVAL_FALSE_IN_STACK'; - return false; - } - - return true; -}; - - - -/** - * Verifies a Script by executing it and returns true if it is valid. - * This function needs to be provided with the scriptSig and the scriptPubkey - * separately. - * @param {Script} scriptSig - the script's first part (corresponding to the tx input) - * @param {Script} scriptPubkey - the script's last part (corresponding to the tx output) - * @param {Transaction=} tx - the Transaction containing the scriptSig in one input (used - * to check signature validity for some opcodes like OP_CHECKSIG) - * @param {number} nin - index of the transaction input containing the scriptSig verified. - * @param {number} flags - evaluation flags. See Interpreter.SCRIPT_* constants - * @param {number} witness - array of witness data - * @param {number} satoshis - number of satoshis created by this output - * - * Translated from bitcoind's VerifyScript - */ -Interpreter.prototype.verify = function(scriptSig, scriptPubkey, tx, nin, flags, witness, satoshis) { - - var Transaction = require('../transaction'); - if (_.isUndefined(tx)) { - tx = new Transaction(); - } - if (_.isUndefined(nin)) { - nin = 0; - } - if (_.isUndefined(flags)) { - flags = 0; - } - if (_.isUndefined(witness)) { - witness = null; - } - if (_.isUndefined(satoshis)) { - satoshis = 0; - } - - this.set({ - script: scriptSig, - tx: tx, - nin: nin, - sigversion: 0, - satoshis: 0, - flags: flags - }); - var stackCopy; - - if ((flags & Interpreter.SCRIPT_VERIFY_SIGPUSHONLY) !== 0 && !scriptSig.isPushOnly()) { - this.errstr = 'SCRIPT_ERR_SIG_PUSHONLY'; - return false; - } - - // evaluate scriptSig - if (!this.evaluate()) { - return false; - } - - if (flags & Interpreter.SCRIPT_VERIFY_P2SH) { - stackCopy = this.stack.slice(); - } - - var stack = this.stack; - this.initialize(); - this.set({ - script: scriptPubkey, - stack: stack, - tx: tx, - nin: nin, - flags: flags - }); - - // evaluate scriptPubkey - if (!this.evaluate()) { - return false; - } - - if (this.stack.length === 0) { - this.errstr = 'SCRIPT_ERR_EVAL_FALSE_NO_RESULT'; - return false; - } - - var buf = this.stack[this.stack.length - 1]; - if (!Interpreter.castToBool(buf)) { - this.errstr = 'SCRIPT_ERR_EVAL_FALSE_IN_STACK'; - return false; - } - - var hadWitness = false; - if ((flags & Interpreter.SCRIPT_VERIFY_WITNESS)) { - var witnessValues = {}; - if (scriptPubkey.isWitnessProgram(witnessValues)) { - hadWitness = true; - if (scriptSig.toBuffer().length !== 0) { - return false; - } - if (!this.verifyWitnessProgram(witnessValues.version, witnessValues.program, witness, satoshis, this.flags)) { - return false; - } - } - } - - // Additional validation for spend-to-script-hash transactions: - if ((flags & Interpreter.SCRIPT_VERIFY_P2SH) && scriptPubkey.isScriptHashOut()) { - // scriptSig must be literals-only or validation fails - if (!scriptSig.isPushOnly()) { - this.errstr = 'SCRIPT_ERR_SIG_PUSHONLY'; - return false; - } - - // stackCopy cannot be empty here, because if it was the - // P2SH HASH <> EQUAL scriptPubKey would be evaluated with - // an empty stack and the EvalScript above would return false. - if (stackCopy.length === 0) { - throw new Error('internal error - stack copy empty'); - } - - var redeemScriptSerialized = stackCopy[stackCopy.length - 1]; - var redeemScript = Script.fromBuffer(redeemScriptSerialized); - stackCopy.pop(); - - this.initialize(); - this.set({ - script: redeemScript, - stack: stackCopy, - tx: tx, - nin: nin, - flags: flags - }); - - // evaluate redeemScript - if (!this.evaluate()) { - return false; - } - - if (stackCopy.length === 0) { - this.errstr = 'SCRIPT_ERR_EVAL_FALSE_NO_P2SH_STACK'; - return false; - } - - if (!Interpreter.castToBool(stackCopy[stackCopy.length - 1])) { - this.errstr = 'SCRIPT_ERR_EVAL_FALSE_IN_P2SH_STACK'; - return false; - } - if ((flags & Interpreter.SCRIPT_VERIFY_WITNESS)) { - var p2shWitnessValues = {}; - if (redeemScript.isWitnessProgram(p2shWitnessValues)) { - hadWitness = true; - var redeemScriptPush = new Script(); - redeemScriptPush.add(redeemScript.toBuffer()); - if (scriptSig.toHex() !== redeemScriptPush.toHex()) { - this.errstr = 'SCRIPT_ERR_WITNESS_MALLEATED_P2SH'; - return false; - } - - if (!this.verifyWitnessProgram(p2shWitnessValues.version, p2shWitnessValues.program, witness, satoshis, this.flags)) { - return false; - } - // Bypass the cleanstack check at the end. The actual stack is obviously not clean - // for witness programs. - stack = [stack[0]]; - } - } - } - - // The CLEANSTACK check is only performed after potential P2SH evaluation, - // as the non-P2SH evaluation of a P2SH script will obviously not result in - // a clean stack (the P2SH inputs remain). The same holds for witness - // evaluation. - if ((this.flags & Interpreter.SCRIPT_VERIFY_CLEANSTACK) != 0) { - // Disallow CLEANSTACK without P2SH, as otherwise a switch - // CLEANSTACK->P2SH+CLEANSTACK would be possible, which is not a - // softfork (and P2SH should be one). - if ((this.flags & Interpreter.SCRIPT_VERIFY_P2SH) == 0) - throw 'flags & SCRIPT_VERIFY_P2SH'; - - if (stackCopy.length != 1) { - this.errstr = 'SCRIPT_ERR_CLEANSTACK'; - return false; - } - } - - if ((this.flags & Interpreter.SCRIPT_VERIFY_WITNESS)) { - if (!hadWitness && witness.length > 0) { - this.errstr = 'SCRIPT_ERR_WITNESS_UNEXPECTED'; - return false; - } - } - - return true; -}; - -module.exports = Interpreter; - -Interpreter.prototype.initialize = function(obj) { - this.stack = []; - this.altstack = []; - this.pc = 0; - this.satoshis = 0; - this.sigversion = 0; - this.pbegincodehash = 0; - this.nOpCount = 0; - this.vfExec = []; - this.errstr = ''; - this.flags = 0; -}; - -Interpreter.prototype.set = function(obj) { - this.script = obj.script || this.script; - this.tx = obj.tx || this.tx; - this.nin = typeof obj.nin !== 'undefined' ? obj.nin : this.nin; - this.stack = obj.stack || this.stack; - this.altstack = obj.altack || this.altstack; - this.pc = typeof obj.pc !== 'undefined' ? obj.pc : this.pc; - this.pbegincodehash = typeof obj.pbegincodehash !== 'undefined' ? obj.pbegincodehash : this.pbegincodehash; - this.sigversion = typeof obj.sigversion !== 'undefined' ? obj.sigversion : this.sigversion; - this.satoshis = typeof obj.satoshis !== 'undefined' ? obj.satoshis : this.satoshis; - this.nOpCount = typeof obj.nOpCount !== 'undefined' ? obj.nOpCount : this.nOpCount; - this.vfExec = obj.vfExec || this.vfExec; - this.errstr = obj.errstr || this.errstr; - this.flags = typeof obj.flags !== 'undefined' ? obj.flags : this.flags; -}; - -Interpreter.true = Buffer.from([1]); -Interpreter.false = Buffer.from([]); - -Interpreter.MAX_SCRIPT_ELEMENT_SIZE = 520; - -Interpreter.LOCKTIME_THRESHOLD = 500000000; -Interpreter.LOCKTIME_THRESHOLD_BN = new BN(Interpreter.LOCKTIME_THRESHOLD); - -// flags taken from bitcoind -// bitcoind commit: b5d1b1092998bc95313856d535c632ea5a8f9104 -Interpreter.SCRIPT_VERIFY_NONE = 0; - -// Making v1-v16 witness program non-standard -Interpreter.SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM = (1 << 12); - -// Evaluate P2SH subscripts (softfork safe, BIP16). -Interpreter.SCRIPT_VERIFY_P2SH = (1 << 0); - -// Passing a non-strict-DER signature or one with undefined hashtype to a checksig operation causes script failure. -// Passing a pubkey that is not (0x04 + 64 bytes) or (0x02 or 0x03 + 32 bytes) to checksig causes that pubkey to be -// skipped (not softfork safe: this flag can widen the validity of OP_CHECKSIG OP_NOT). -Interpreter.SCRIPT_VERIFY_STRICTENC = (1 << 1); - -// Passing a non-strict-DER signature to a checksig operation causes script failure (softfork safe, BIP62 rule 1) -Interpreter.SCRIPT_VERIFY_DERSIG = (1 << 2); - -// Passing a non-strict-DER signature or one with S > order/2 to a checksig operation causes script failure -// (softfork safe, BIP62 rule 5). -Interpreter.SCRIPT_VERIFY_LOW_S = (1 << 3); - -// verify dummy stack item consumed by CHECKMULTISIG is of zero-length (softfork safe, BIP62 rule 7). -Interpreter.SCRIPT_VERIFY_NULLDUMMY = (1 << 4); - -// Using a non-push operator in the scriptSig causes script failure (softfork safe, BIP62 rule 2). -Interpreter.SCRIPT_VERIFY_SIGPUSHONLY = (1 << 5); - -// Require minimal encodings for all push operations (OP_0... OP_16, OP_1NEGATE where possible, direct -// pushes up to 75 bytes, OP_PUSHDATA up to 255 bytes, OP_PUSHDATA2 for anything larger). Evaluating -// any other push causes the script to fail (BIP62 rule 3). -// In addition, whenever a stack element is interpreted as a number, it must be of minimal length (BIP62 rule 4). -// (softfork safe) -Interpreter.SCRIPT_VERIFY_MINIMALDATA = (1 << 6); - -// Discourage use of NOPs reserved for upgrades (NOP1-10) -// -// Provided so that nodes can avoid accepting or mining transactions -// containing executed NOP's whose meaning may change after a soft-fork, -// thus rendering the script invalid; with this flag set executing -// discouraged NOPs fails the script. This verification flag will never be -// a mandatory flag applied to scripts in a block. NOPs that are not -// executed, e.g. within an unexecuted IF ENDIF block, are *not* rejected. -Interpreter.SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS = (1 << 7); - - -// Require that only a single stack element remains after evaluation. This -// changes the success criterion from "At least one stack element must -// remain, and when interpreted as a boolean, it must be true" to "Exactly -// one stack element must remain, and when interpreted as a boolean, it must -// be true". -// (softfork safe, BIP62 rule 6) -// Note: CLEANSTACK should never be used without P2SH or WITNESS. -Interpreter.SCRIPT_VERIFY_CLEANSTACK = (1 << 8), - -// CLTV See BIP65 for details. -Interpreter.SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY = (1 << 9); -Interpreter.SCRIPT_VERIFY_WITNESS = (1 << 10); -Interpreter.SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS = (1 << 11); - -// support CHECKSEQUENCEVERIFY opcode -// -// See BIP112 for details -Interpreter.SCRIPT_VERIFY_CHECKSEQUENCEVERIFY = (1 << 10); - -// -// Segwit script only: Require the argument of OP_IF/NOTIF to be exactly -// 0x01 or empty vector -// -Interpreter.SCRIPT_VERIFY_MINIMALIF = (1 << 13); - - -// Signature(s) must be empty vector if an CHECK(MULTI)SIG operation failed -// -Interpreter.SCRIPT_VERIFY_NULLFAIL = (1 << 14); - -// Public keys in scripts must be compressed -// -Interpreter.SCRIPT_VERIFY_WITNESS_PUBKEYTYPE = (1 << 15); - -// Do we accept signature using SIGHASH_FORKID -// -Interpreter.SCRIPT_ENABLE_SIGHASH_FORKID = (1 << 16); - -// Do we accept activate replay protection using a different fork id. -// -Interpreter.SCRIPT_ENABLE_REPLAY_PROTECTION = (1 << 17); - -// Enable new opcodes. -// -Interpreter.SCRIPT_ENABLE_MONOLITH_OPCODES = (1 << 18); - - - -/* Below flags apply in the context of BIP 68*/ -/** - * If this flag set, CTxIn::nSequence is NOT interpreted as a relative - * lock-time. - */ -Interpreter.SEQUENCE_LOCKTIME_DISABLE_FLAG = (1 << 31); - -/** - * If CTxIn::nSequence encodes a relative lock-time and this flag is set, - * the relative lock-time has units of 512 seconds, otherwise it specifies - * blocks with a granularity of 1. - */ -Interpreter.SEQUENCE_LOCKTIME_TYPE_FLAG = (1 << 22); - -/** - * If CTxIn::nSequence encodes a relative lock-time, this mask is applied to - * extract that lock-time from the sequence field. - */ -Interpreter.SEQUENCE_LOCKTIME_MASK = 0x0000ffff; - - -Interpreter.castToBool = function(buf) { - for (var i = 0; i < buf.length; i++) { - if (buf[i] !== 0) { - // can be negative zero - if (i === buf.length - 1 && buf[i] === 0x80) { - return false; - } - return true; - } - } - return false; -}; - -/** - * Translated from bitcoind's CheckSignatureEncoding - */ -Interpreter.prototype.checkSignatureEncoding = function(buf) { - var sig; - - // Empty signature. Not strictly DER encoded, but allowed to provide a - // compact way to provide an invalid signature for use with CHECK(MULTI)SIG - if (buf.length == 0) { - return true; - } - - if ((this.flags & (Interpreter.SCRIPT_VERIFY_DERSIG | Interpreter.SCRIPT_VERIFY_LOW_S | Interpreter.SCRIPT_VERIFY_STRICTENC)) !== 0 && !Signature.isTxDER(buf)) { - this.errstr = 'SCRIPT_ERR_SIG_DER_INVALID_FORMAT'; - return false; - } else if ((this.flags & Interpreter.SCRIPT_VERIFY_LOW_S) !== 0) { - sig = Signature.fromTxFormat(buf); - if (!sig.hasLowS()) { - this.errstr = 'SCRIPT_ERR_SIG_DER_HIGH_S'; - return false; - } - } else if ((this.flags & Interpreter.SCRIPT_VERIFY_STRICTENC) !== 0) { - sig = Signature.fromTxFormat(buf); - if (!sig.hasDefinedHashtype()) { - this.errstr = 'SCRIPT_ERR_SIG_HASHTYPE'; - return false; - } - } - - return true; -}; - -/** - * Translated from bitcoind's CheckPubKeyEncoding - */ -Interpreter.prototype.checkPubkeyEncoding = function(buf) { - if ((this.flags & Interpreter.SCRIPT_VERIFY_STRICTENC) !== 0 && !PublicKey.isValid(buf)) { - this.errstr = 'SCRIPT_ERR_PUBKEYTYPE'; - return false; - } - - // Only compressed keys are accepted in segwit - if ((this.flags & Interpreter.SCRIPT_VERIFY_WITNESS_PUBKEYTYPE) != 0 && this.sigversion == 1 && !PublicKey.fromBuffer(buf).compressed) { - this.errstr = 'SCRIPT_ERR_WITNESS_PUBKEYTYPE'; - return false; - } - - return true; -}; - -/** - * Based on bitcoind's EvalScript function, with the inner loop moved to - * Interpreter.prototype.step() - * bitcoind commit: b5d1b1092998bc95313856d535c632ea5a8f9104 - */ -Interpreter.prototype.evaluate = function() { - if (this.script.toBuffer().length > 10000) { - this.errstr = 'SCRIPT_ERR_SCRIPT_SIZE'; - return false; - } - - try { - while (this.pc < this.script.chunks.length) { - var fSuccess = this.step(); - if (!fSuccess) { - return false; - } - } - - // Size limits - if (this.stack.length + this.altstack.length > 1000) { - this.errstr = 'SCRIPT_ERR_STACK_SIZE'; - return false; - } - } catch (e) { - this.errstr = 'SCRIPT_ERR_UNKNOWN_ERROR: ' + e; - return false; - } - - if (this.vfExec.length > 0) { - this.errstr = 'SCRIPT_ERR_UNBALANCED_CONDITIONAL'; - return false; - } - - return true; -}; - -/** - * Checks a locktime parameter with the transaction's locktime. - * There are two times of nLockTime: lock-by-blockheight and lock-by-blocktime, - * distinguished by whether nLockTime < LOCKTIME_THRESHOLD = 500000000 - * - * See the corresponding code on bitcoin core: - * https://github.com/bitcoin/bitcoin/blob/ffd75adce01a78b3461b3ff05bcc2b530a9ce994/src/script/interpreter.cpp#L1129 - * - * @param {BN} nLockTime the locktime read from the script - * @return {boolean} true if the transaction's locktime is less than or equal to - * the transaction's locktime - */ -Interpreter.prototype.checkLockTime = function(nLockTime) { - - // We want to compare apples to apples, so fail the script - // unless the type of nLockTime being tested is the same as - // the nLockTime in the transaction. - if (!( - (this.tx.nLockTime < Interpreter.LOCKTIME_THRESHOLD && nLockTime.lt(Interpreter.LOCKTIME_THRESHOLD_BN)) || - (this.tx.nLockTime >= Interpreter.LOCKTIME_THRESHOLD && nLockTime.gte(Interpreter.LOCKTIME_THRESHOLD_BN)) - )) { - return false; - } - - // Now that we know we're comparing apples-to-apples, the - // comparison is a simple numeric one. - if (nLockTime.gt(new BN(this.tx.nLockTime))) { - return false; - } - - // Finally the nLockTime feature can be disabled and thus - // CHECKLOCKTIMEVERIFY bypassed if every txin has been - // finalized by setting nSequence to maxint. The - // transaction would be allowed into the blockchain, making - // the opcode ineffective. - // - // Testing if this vin is not final is sufficient to - // prevent this condition. Alternatively we could test all - // inputs, but testing just this input minimizes the data - // required to prove correct CHECKLOCKTIMEVERIFY execution. - if (!this.tx.inputs[this.nin].isFinal()) { - return false; - } - - return true; -} - - -/** - * Checks a sequence parameter with the transaction's sequence. - * @param {BN} nSequence the sequence read from the script - * @return {boolean} true if the transaction's sequence is less than or equal to - * the transaction's sequence - */ -Interpreter.prototype.checkSequence = function(nSequence) { - - // Relative lock times are supported by comparing the passed in operand to - // the sequence number of the input. - var txToSequence = this.tx.inputs[this.nin].sequenceNumber; - - // Fail if the transaction's version number is not set high enough to - // trigger BIP 68 rules. - if (this.tx.version < 2) { - return false; - } - - // Sequence numbers with their most significant bit set are not consensus - // constrained. Testing that the transaction's sequence number do not have - // this bit set prevents using this property to get around a - // CHECKSEQUENCEVERIFY check. - if (txToSequence & SEQUENCE_LOCKTIME_DISABLE_FLAG) { - return false; - } - - // Mask off any bits that do not have consensus-enforced meaning before - // doing the integer comparisons - var nLockTimeMask = - Interpreter.SEQUENCE_LOCKTIME_TYPE_FLAG | Interpreter.SEQUENCE_LOCKTIME_MASK; - var txToSequenceMasked = new BN(txToSequence & nLockTimeMask); - var nSequenceMasked = nSequence.and(nLockTimeMask); - - // There are two kinds of nSequence: lock-by-blockheight and - // lock-by-blocktime, distinguished by whether nSequenceMasked < - // CTxIn::SEQUENCE_LOCKTIME_TYPE_FLAG. - // - // We want to compare apples to apples, so fail the script unless the type - // of nSequenceMasked being tested is the same as the nSequenceMasked in the - // transaction. - var SEQUENCE_LOCKTIME_TYPE_FLAG_BN = new BN(Interpreter.SEQUENCE_LOCKTIME_TYPE_FLAG); - - if (!((txToSequenceMasked.lt(SEQUENCE_LOCKTIME_TYPE_FLAG_BN) && - nSequenceMasked.lt(SEQUENCE_LOCKTIME_TYPE_FLAG_BN)) || - (txToSequenceMasked.gte(SEQUENCE_LOCKTIME_TYPE_FLAG_BN) && - nSequenceMasked.gte(SEQUENCE_LOCKTIME_TYPE_FLAG_BN)))) { - return false; - } - - // Now that we know we're comparing apples-to-apples, the comparison is a - // simple numeric one. - if (nSequenceMasked.gt(txToSequenceMasked)) { - return false; - } - return true; - } - -/** - * Based on the inner loop of bitcoind's EvalScript function - * bitcoind commit: b5d1b1092998bc95313856d535c632ea5a8f9104 - */ -Interpreter.prototype.step = function() { - var fRequireMinimal = (this.flags & Interpreter.SCRIPT_VERIFY_MINIMALDATA) !== 0; - - //bool fExec = !count(vfExec.begin(), vfExec.end(), false); - var fExec = (this.vfExec.indexOf(false) === -1); - var buf, buf1, buf2, spliced, n, x1, x2, bn, bn1, bn2, bufSig, bufPubkey, subscript; - var sig, pubkey; - var fValue, fSuccess; - - // Read instruction - var chunk = this.script.chunks[this.pc]; - this.pc++; - var opcodenum = chunk.opcodenum; - if (_.isUndefined(opcodenum)) { - this.errstr = 'SCRIPT_ERR_UNDEFINED_OPCODE'; - return false; - } - if (chunk.buf && chunk.buf.length > Interpreter.MAX_SCRIPT_ELEMENT_SIZE) { - this.errstr = 'SCRIPT_ERR_PUSH_SIZE'; - return false; - } - - // Note how Opcode.OP_RESERVED does not count towards the opcode limit. - if (opcodenum > Opcode.OP_16 && ++(this.nOpCount) > 201) { - this.errstr = 'SCRIPT_ERR_OP_COUNT'; - return false; - } - - - if (opcodenum === Opcode.OP_CAT || - opcodenum === Opcode.OP_SUBSTR || - opcodenum === Opcode.OP_LEFT || - opcodenum === Opcode.OP_RIGHT || - opcodenum === Opcode.OP_INVERT || - opcodenum === Opcode.OP_AND || - opcodenum === Opcode.OP_OR || - opcodenum === Opcode.OP_XOR || - opcodenum === Opcode.OP_2MUL || - opcodenum === Opcode.OP_2DIV || - opcodenum === Opcode.OP_MUL || - opcodenum === Opcode.OP_DIV || - opcodenum === Opcode.OP_MOD || - opcodenum === Opcode.OP_LSHIFT || - opcodenum === Opcode.OP_RSHIFT) { - this.errstr = 'SCRIPT_ERR_DISABLED_OPCODE'; - return false; - } - - if (fExec && 0 <= opcodenum && opcodenum <= Opcode.OP_PUSHDATA4) { - if (fRequireMinimal && !this.script.checkMinimalPush(this.pc - 1)) { - this.errstr = 'SCRIPT_ERR_MINIMALDATA'; - return false; - } - if (!chunk.buf) { - this.stack.push(Interpreter.false); - } else if (chunk.len !== chunk.buf.length) { - throw new Error('Length of push value not equal to length of data'); - } else { - this.stack.push(chunk.buf); - } - } else if (fExec || (Opcode.OP_IF <= opcodenum && opcodenum <= Opcode.OP_ENDIF)) { - switch (opcodenum) { - // Push value - case Opcode.OP_1NEGATE: - case Opcode.OP_1: - case Opcode.OP_2: - case Opcode.OP_3: - case Opcode.OP_4: - case Opcode.OP_5: - case Opcode.OP_6: - case Opcode.OP_7: - case Opcode.OP_8: - case Opcode.OP_9: - case Opcode.OP_10: - case Opcode.OP_11: - case Opcode.OP_12: - case Opcode.OP_13: - case Opcode.OP_14: - case Opcode.OP_15: - case Opcode.OP_16: - { - // ( -- value) - // ScriptNum bn((int)opcode - (int)(Opcode.OP_1 - 1)); - n = opcodenum - (Opcode.OP_1 - 1); - buf = new BN(n).toScriptNumBuffer(); - this.stack.push(buf); - // The result of these opcodes should always be the minimal way to push the data - // they push, so no need for a CheckMinimalPush here. - } - break; - - - // - // Control - // - case Opcode.OP_NOP: - break; - - case Opcode.OP_NOP2: - case Opcode.OP_CHECKLOCKTIMEVERIFY: - - if (!(this.flags & Interpreter.SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY)) { - // not enabled; treat as a NOP2 - if (this.flags & Interpreter.SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS) { - this.errstr = 'SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS'; - return false; - } - break; - } - - if (this.stack.length < 1) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - - // Note that elsewhere numeric opcodes are limited to - // operands in the range -2**31+1 to 2**31-1, however it is - // legal for opcodes to produce results exceeding that - // range. This limitation is implemented by CScriptNum's - // default 4-byte limit. - // - // If we kept to that limit we'd have a year 2038 problem, - // even though the nLockTime field in transactions - // themselves is uint32 which only becomes meaningless - // after the year 2106. - // - // Thus as a special case we tell CScriptNum to accept up - // to 5-byte bignums, which are good until 2**39-1, well - // beyond the 2**32-1 limit of the nLockTime field itself. - var nLockTime = BN.fromScriptNumBuffer(this.stack[this.stack.length - 1], fRequireMinimal, 5); - - // In the rare event that the argument may be < 0 due to - // some arithmetic being done first, you can always use - // 0 MAX CHECKLOCKTIMEVERIFY. - if (nLockTime.lt(new BN(0))) { - this.errstr = 'SCRIPT_ERR_NEGATIVE_LOCKTIME'; - return false; - } - - // Actually compare the specified lock time with the transaction. - if (!this.checkLockTime(nLockTime)) { - this.errstr = 'SCRIPT_ERR_UNSATISFIED_LOCKTIME'; - return false; - } - break; - - case Opcode.OP_NOP3: - case Opcode.OP_CHECKSEQUENCEVERIFY: - - if (!(this.flags & Interpreter.SCRIPT_VERIFY_CHECKSEQUENCEVERIFY)) { - // not enabled; treat as a NOP3 - if (this.flags & Interpreter.SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS) { - this.errstr = 'SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS'; - return false; - } - break; - } - - if (this.stack.length < 1) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - - - // nSequence, like nLockTime, is a 32-bit unsigned - // integer field. See the comment in CHECKLOCKTIMEVERIFY - // regarding 5-byte numeric operands. - - var nSequence = BN.fromScriptNumBuffer(this.stack[this.stack.length - 1], fRequireMinimal, 5); - - - // In the rare event that the argument may be < 0 due to - // some arithmetic being done first, you can always use - // 0 MAX CHECKSEQUENCEVERIFY. - if (nSequence.lt(new BN(0))) { - this.errstr = 'SCRIPT_ERR_NEGATIVE_LOCKTIME'; - return false; - } - - // To provide for future soft-fork extensibility, if the - // operand has the disabled lock-time flag set, - // CHECKSEQUENCEVERIFY behaves as a NOP. - if ((nSequence & - Interpreter.SEQUENCE_LOCKTIME_DISABLE_FLAG) != 0) { - break; - } - - // Actually compare the specified lock time with the transaction. - if (!this.checkSequence(nSequence)) { - this.errstr = 'SCRIPT_ERR_UNSATISFIED_LOCKTIME'; - return false; - } - break; - - - - case Opcode.OP_NOP1: - case Opcode.OP_NOP4: - case Opcode.OP_NOP5: - case Opcode.OP_NOP6: - case Opcode.OP_NOP7: - case Opcode.OP_NOP8: - case Opcode.OP_NOP9: - case Opcode.OP_NOP10: - { - if (this.flags & Interpreter.SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS) { - this.errstr = 'SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS'; - return false; - } - } - break; - - case Opcode.OP_IF: - case Opcode.OP_NOTIF: - { - // if [statements] [else [statements]] endif - // bool fValue = false; - fValue = false; - if (fExec) { - if (this.stack.length < 1) { - this.errstr = 'SCRIPT_ERR_UNBALANCED_CONDITIONAL'; - return false; - } - - buf = this.stack[this.stack.length - 1]; - - if (this.flags & Interpreter.SCRIPT_VERIFY_MINIMALIF) { - buf = this.stack[this.stack.length - 1]; - if (buf.length > 1) { - this.errstr = 'SCRIPT_ERR_MINIMALIF'; - return false; - } - if (buf.length == 1 && buf[0]!=1) { - this.errstr = 'SCRIPT_ERR_MINIMALIF'; - return false; - } - } - fValue = Interpreter.castToBool(buf); - if (opcodenum === Opcode.OP_NOTIF) { - fValue = !fValue; - } - this.stack.pop(); - } - this.vfExec.push(fValue); - } - break; - - case Opcode.OP_ELSE: - { - if (this.vfExec.length === 0) { - this.errstr = 'SCRIPT_ERR_UNBALANCED_CONDITIONAL'; - return false; - } - this.vfExec[this.vfExec.length - 1] = !this.vfExec[this.vfExec.length - 1]; - } - break; - - case Opcode.OP_ENDIF: - { - if (this.vfExec.length === 0) { - this.errstr = 'SCRIPT_ERR_UNBALANCED_CONDITIONAL'; - return false; - } - this.vfExec.pop(); - } - break; - - case Opcode.OP_VERIFY: - { - // (true -- ) or - // (false -- false) and return - if (this.stack.length < 1) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - buf = this.stack[this.stack.length - 1]; - fValue = Interpreter.castToBool(buf); - if (fValue) { - this.stack.pop(); - } else { - this.errstr = 'SCRIPT_ERR_VERIFY'; - return false; - } - } - break; - - case Opcode.OP_RETURN: - { - this.errstr = 'SCRIPT_ERR_OP_RETURN'; - return false; - } - break; - - - // - // Stack ops - // - case Opcode.OP_TOALTSTACK: - { - if (this.stack.length < 1) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - this.altstack.push(this.stack.pop()); - } - break; - - case Opcode.OP_FROMALTSTACK: - { - if (this.altstack.length < 1) { - this.errstr = 'SCRIPT_ERR_INVALID_ALTSTACK_OPERATION'; - return false; - } - this.stack.push(this.altstack.pop()); - } - break; - - case Opcode.OP_2DROP: - { - // (x1 x2 -- ) - if (this.stack.length < 2) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - this.stack.pop(); - this.stack.pop(); - } - break; - - case Opcode.OP_2DUP: - { - // (x1 x2 -- x1 x2 x1 x2) - if (this.stack.length < 2) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - buf1 = this.stack[this.stack.length - 2]; - buf2 = this.stack[this.stack.length - 1]; - this.stack.push(buf1); - this.stack.push(buf2); - } - break; - - case Opcode.OP_3DUP: - { - // (x1 x2 x3 -- x1 x2 x3 x1 x2 x3) - if (this.stack.length < 3) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - buf1 = this.stack[this.stack.length - 3]; - buf2 = this.stack[this.stack.length - 2]; - var buf3 = this.stack[this.stack.length - 1]; - this.stack.push(buf1); - this.stack.push(buf2); - this.stack.push(buf3); - } - break; - - case Opcode.OP_2OVER: - { - // (x1 x2 x3 x4 -- x1 x2 x3 x4 x1 x2) - if (this.stack.length < 4) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - buf1 = this.stack[this.stack.length - 4]; - buf2 = this.stack[this.stack.length - 3]; - this.stack.push(buf1); - this.stack.push(buf2); - } - break; - - case Opcode.OP_2ROT: - { - // (x1 x2 x3 x4 x5 x6 -- x3 x4 x5 x6 x1 x2) - if (this.stack.length < 6) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - spliced = this.stack.splice(this.stack.length - 6, 2); - this.stack.push(spliced[0]); - this.stack.push(spliced[1]); - } - break; - - case Opcode.OP_2SWAP: - { - // (x1 x2 x3 x4 -- x3 x4 x1 x2) - if (this.stack.length < 4) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - spliced = this.stack.splice(this.stack.length - 4, 2); - this.stack.push(spliced[0]); - this.stack.push(spliced[1]); - } - break; - - case Opcode.OP_IFDUP: - { - // (x - 0 | x x) - if (this.stack.length < 1) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - buf = this.stack[this.stack.length - 1]; - fValue = Interpreter.castToBool(buf); - if (fValue) { - this.stack.push(buf); - } - } - break; - - case Opcode.OP_DEPTH: - { - // -- stacksize - buf = new BN(this.stack.length).toScriptNumBuffer(); - this.stack.push(buf); - } - break; - - case Opcode.OP_DROP: - { - // (x -- ) - if (this.stack.length < 1) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - this.stack.pop(); - } - break; - - case Opcode.OP_DUP: - { - // (x -- x x) - if (this.stack.length < 1) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - this.stack.push(this.stack[this.stack.length - 1]); - } - break; - - case Opcode.OP_NIP: - { - // (x1 x2 -- x2) - if (this.stack.length < 2) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - this.stack.splice(this.stack.length - 2, 1); - } - break; - - case Opcode.OP_OVER: - { - // (x1 x2 -- x1 x2 x1) - if (this.stack.length < 2) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - this.stack.push(this.stack[this.stack.length - 2]); - } - break; - - case Opcode.OP_PICK: - case Opcode.OP_ROLL: - { - // (xn ... x2 x1 x0 n - xn ... x2 x1 x0 xn) - // (xn ... x2 x1 x0 n - ... x2 x1 x0 xn) - if (this.stack.length < 2) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - buf = this.stack[this.stack.length - 1]; - bn = BN.fromScriptNumBuffer(buf, fRequireMinimal); - n = bn.toNumber(); - this.stack.pop(); - if (n < 0 || n >= this.stack.length) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - buf = this.stack[this.stack.length - n - 1]; - if (opcodenum === Opcode.OP_ROLL) { - this.stack.splice(this.stack.length - n - 1, 1); - } - this.stack.push(buf); - } - break; - - case Opcode.OP_ROT: - { - // (x1 x2 x3 -- x2 x3 x1) - // x2 x1 x3 after first swap - // x2 x3 x1 after second swap - if (this.stack.length < 3) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - x1 = this.stack[this.stack.length - 3]; - x2 = this.stack[this.stack.length - 2]; - var x3 = this.stack[this.stack.length - 1]; - this.stack[this.stack.length - 3] = x2; - this.stack[this.stack.length - 2] = x3; - this.stack[this.stack.length - 1] = x1; - } - break; - - case Opcode.OP_SWAP: - { - // (x1 x2 -- x2 x1) - if (this.stack.length < 2) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - x1 = this.stack[this.stack.length - 2]; - x2 = this.stack[this.stack.length - 1]; - this.stack[this.stack.length - 2] = x2; - this.stack[this.stack.length - 1] = x1; - } - break; - - case Opcode.OP_TUCK: - { - // (x1 x2 -- x2 x1 x2) - if (this.stack.length < 2) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - this.stack.splice(this.stack.length - 2, 0, this.stack[this.stack.length - 1]); - } - break; - - - case Opcode.OP_SIZE: - { - // (in -- in size) - if (this.stack.length < 1) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - bn = new BN(this.stack[this.stack.length - 1].length); - this.stack.push(bn.toScriptNumBuffer()); - } - break; - - - // - // Bitwise logic - // - case Opcode.OP_EQUAL: - case Opcode.OP_EQUALVERIFY: - //case Opcode.OP_NOTEQUAL: // use Opcode.OP_NUMNOTEQUAL - { - // (x1 x2 - bool) - if (this.stack.length < 2) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - buf1 = this.stack[this.stack.length - 2]; - buf2 = this.stack[this.stack.length - 1]; - var fEqual = buf1.toString('hex') === buf2.toString('hex'); - this.stack.pop(); - this.stack.pop(); - this.stack.push(fEqual ? Interpreter.true : Interpreter.false); - if (opcodenum === Opcode.OP_EQUALVERIFY) { - if (fEqual) { - this.stack.pop(); - } else { - this.errstr = 'SCRIPT_ERR_EQUALVERIFY'; - return false; - } - } - } - break; - - - // - // Numeric - // - case Opcode.OP_1ADD: - case Opcode.OP_1SUB: - case Opcode.OP_NEGATE: - case Opcode.OP_ABS: - case Opcode.OP_NOT: - case Opcode.OP_0NOTEQUAL: - { - // (in -- out) - if (this.stack.length < 1) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - buf = this.stack[this.stack.length - 1]; - bn = BN.fromScriptNumBuffer(buf, fRequireMinimal); - switch (opcodenum) { - case Opcode.OP_1ADD: - bn = bn.add(BN.One); - break; - case Opcode.OP_1SUB: - bn = bn.sub(BN.One); - break; - case Opcode.OP_NEGATE: - bn = bn.neg(); - break; - case Opcode.OP_ABS: - if (bn.cmp(BN.Zero) < 0) { - bn = bn.neg(); - } - break; - case Opcode.OP_NOT: - bn = new BN((bn.cmp(BN.Zero) === 0) + 0); - break; - case Opcode.OP_0NOTEQUAL: - bn = new BN((bn.cmp(BN.Zero) !== 0) + 0); - break; - //default: assert(!'invalid opcode'); break; // TODO: does this ever occur? - } - this.stack.pop(); - this.stack.push(bn.toScriptNumBuffer()); - } - break; - - case Opcode.OP_ADD: - case Opcode.OP_SUB: - case Opcode.OP_BOOLAND: - case Opcode.OP_BOOLOR: - case Opcode.OP_NUMEQUAL: - case Opcode.OP_NUMEQUALVERIFY: - case Opcode.OP_NUMNOTEQUAL: - case Opcode.OP_LESSTHAN: - case Opcode.OP_GREATERTHAN: - case Opcode.OP_LESSTHANOREQUAL: - case Opcode.OP_GREATERTHANOREQUAL: - case Opcode.OP_MIN: - case Opcode.OP_MAX: - { - // (x1 x2 -- out) - if (this.stack.length < 2) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - bn1 = BN.fromScriptNumBuffer(this.stack[this.stack.length - 2], fRequireMinimal); - bn2 = BN.fromScriptNumBuffer(this.stack[this.stack.length - 1], fRequireMinimal); - bn = new BN(0); - - switch (opcodenum) { - case Opcode.OP_ADD: - bn = bn1.add(bn2); - break; - - case Opcode.OP_SUB: - bn = bn1.sub(bn2); - break; - - // case Opcode.OP_BOOLAND: bn = (bn1 != bnZero && bn2 != bnZero); break; - case Opcode.OP_BOOLAND: - bn = new BN(((bn1.cmp(BN.Zero) !== 0) && (bn2.cmp(BN.Zero) !== 0)) + 0); - break; - // case Opcode.OP_BOOLOR: bn = (bn1 != bnZero || bn2 != bnZero); break; - case Opcode.OP_BOOLOR: - bn = new BN(((bn1.cmp(BN.Zero) !== 0) || (bn2.cmp(BN.Zero) !== 0)) + 0); - break; - // case Opcode.OP_NUMEQUAL: bn = (bn1 == bn2); break; - case Opcode.OP_NUMEQUAL: - bn = new BN((bn1.cmp(bn2) === 0) + 0); - break; - // case Opcode.OP_NUMEQUALVERIFY: bn = (bn1 == bn2); break; - case Opcode.OP_NUMEQUALVERIFY: - bn = new BN((bn1.cmp(bn2) === 0) + 0); - break; - // case Opcode.OP_NUMNOTEQUAL: bn = (bn1 != bn2); break; - case Opcode.OP_NUMNOTEQUAL: - bn = new BN((bn1.cmp(bn2) !== 0) + 0); - break; - // case Opcode.OP_LESSTHAN: bn = (bn1 < bn2); break; - case Opcode.OP_LESSTHAN: - bn = new BN((bn1.cmp(bn2) < 0) + 0); - break; - // case Opcode.OP_GREATERTHAN: bn = (bn1 > bn2); break; - case Opcode.OP_GREATERTHAN: - bn = new BN((bn1.cmp(bn2) > 0) + 0); - break; - // case Opcode.OP_LESSTHANOREQUAL: bn = (bn1 <= bn2); break; - case Opcode.OP_LESSTHANOREQUAL: - bn = new BN((bn1.cmp(bn2) <= 0) + 0); - break; - // case Opcode.OP_GREATERTHANOREQUAL: bn = (bn1 >= bn2); break; - case Opcode.OP_GREATERTHANOREQUAL: - bn = new BN((bn1.cmp(bn2) >= 0) + 0); - break; - case Opcode.OP_MIN: - bn = (bn1.cmp(bn2) < 0 ? bn1 : bn2); - break; - case Opcode.OP_MAX: - bn = (bn1.cmp(bn2) > 0 ? bn1 : bn2); - break; - // default: assert(!'invalid opcode'); break; //TODO: does this ever occur? - } - this.stack.pop(); - this.stack.pop(); - this.stack.push(bn.toScriptNumBuffer()); - - if (opcodenum === Opcode.OP_NUMEQUALVERIFY) { - // if (CastToBool(stacktop(-1))) - if (Interpreter.castToBool(this.stack[this.stack.length - 1])) { - this.stack.pop(); - } else { - this.errstr = 'SCRIPT_ERR_NUMEQUALVERIFY'; - return false; - } - } - } - break; - - case Opcode.OP_WITHIN: - { - // (x min max -- out) - if (this.stack.length < 3) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - bn1 = BN.fromScriptNumBuffer(this.stack[this.stack.length - 3], fRequireMinimal); - bn2 = BN.fromScriptNumBuffer(this.stack[this.stack.length - 2], fRequireMinimal); - var bn3 = BN.fromScriptNumBuffer(this.stack[this.stack.length - 1], fRequireMinimal); - //bool fValue = (bn2 <= bn1 && bn1 < bn3); - fValue = (bn2.cmp(bn1) <= 0) && (bn1.cmp(bn3) < 0); - this.stack.pop(); - this.stack.pop(); - this.stack.pop(); - this.stack.push(fValue ? Interpreter.true : Interpreter.false); - } - break; - - - // - // Crypto - // - case Opcode.OP_RIPEMD160: - case Opcode.OP_SHA1: - case Opcode.OP_SHA256: - case Opcode.OP_HASH160: - case Opcode.OP_HASH256: - { - // (in -- hash) - if (this.stack.length < 1) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - buf = this.stack[this.stack.length - 1]; - //valtype vchHash((opcode == Opcode.OP_RIPEMD160 || - // opcode == Opcode.OP_SHA1 || opcode == Opcode.OP_HASH160) ? 20 : 32); - var bufHash; - if (opcodenum === Opcode.OP_RIPEMD160) { - bufHash = Hash.ripemd160(buf); - } else if (opcodenum === Opcode.OP_SHA1) { - bufHash = Hash.sha1(buf); - } else if (opcodenum === Opcode.OP_SHA256) { - bufHash = Hash.sha256(buf); - } else if (opcodenum === Opcode.OP_HASH160) { - bufHash = Hash.sha256ripemd160(buf); - } else if (opcodenum === Opcode.OP_HASH256) { - bufHash = Hash.sha256sha256(buf); - } - this.stack.pop(); - this.stack.push(bufHash); - } - break; - - case Opcode.OP_CODESEPARATOR: - { - // Hash starts after the code separator - this.pbegincodehash = this.pc; - } - break; - - case Opcode.OP_CHECKSIG: - case Opcode.OP_CHECKSIGVERIFY: - { - // (sig pubkey -- bool) - if (this.stack.length < 2) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - - bufSig = this.stack[this.stack.length - 2]; - bufPubkey = this.stack[this.stack.length - 1]; - if (!this.checkSignatureEncoding(bufSig) || !this.checkPubkeyEncoding(bufPubkey)) { - return false; - } - - // Subset of script starting at the most recent codeseparator - // CScript scriptCode(pbegincodehash, pend); - subscript = new Script().set({ - chunks: this.script.chunks.slice(this.pbegincodehash) - }); - - // Drop the signature, since there's no way for a signature to sign itself - var tmpScript = new Script().add(bufSig); - subscript.findAndDelete(tmpScript); - - try { - sig = Signature.fromTxFormat(bufSig); - pubkey = PublicKey.fromBuffer(bufPubkey, false); - fSuccess = this.tx.verifySignature(sig, pubkey, this.nin, subscript, this.sigversion, this.satoshis); - } catch (e) { - //invalid sig or pubkey - fSuccess = false; - } - - if (!fSuccess && (this.flags & Interpreter.SCRIPT_VERIFY_NULLFAIL) && - bufSig.length) { - this.errstr = 'SCRIPT_ERR_NULLFAIL'; - return false; - } - - this.stack.pop(); - this.stack.pop(); - - // stack.push_back(fSuccess ? vchTrue : vchFalse); - this.stack.push(fSuccess ? Interpreter.true : Interpreter.false); - if (opcodenum === Opcode.OP_CHECKSIGVERIFY) { - if (fSuccess) { - this.stack.pop(); - } else { - this.errstr = 'SCRIPT_ERR_CHECKSIGVERIFY'; - return false; - } - } - } - break; - - case Opcode.OP_CHECKMULTISIG: - case Opcode.OP_CHECKMULTISIGVERIFY: - { - // ([sig ...] num_of_signatures [pubkey ...] num_of_pubkeys -- bool) - - var i = 1; - if (this.stack.length < i) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - - var nKeysCount = BN.fromScriptNumBuffer(this.stack[this.stack.length - i], fRequireMinimal).toNumber(); - if (nKeysCount < 0 || nKeysCount > 20) { - this.errstr = 'SCRIPT_ERR_PUBKEY_COUNT'; - return false; - } - this.nOpCount += nKeysCount; - if (this.nOpCount > 201) { - this.errstr = 'SCRIPT_ERR_OP_COUNT'; - return false; - } - // int ikey = ++i; - var ikey = ++i; - i += nKeysCount; - - // ikey2 is the position of last non-signature item in - // the stack. Top stack item = 1. With - // SCRIPT_VERIFY_NULLFAIL, this is used for cleanup if - // operation fails. - var ikey2 = nKeysCount + 2; - - if (this.stack.length < i) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - - var nSigsCount = BN.fromScriptNumBuffer(this.stack[this.stack.length - i], fRequireMinimal).toNumber(); - if (nSigsCount < 0 || nSigsCount > nKeysCount) { - this.errstr = 'SCRIPT_ERR_SIG_COUNT'; - return false; - } - // int isig = ++i; - var isig = ++i; - i += nSigsCount; - if (this.stack.length < i) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - - // Subset of script starting at the most recent codeseparator - subscript = new Script().set({ - chunks: this.script.chunks.slice(this.pbegincodehash) - }); - - // Drop the signatures, since there's no way for a signature to sign itself - for (var k = 0; k < nSigsCount; k++) { - bufSig = this.stack[this.stack.length - isig - k]; - subscript.findAndDelete(new Script().add(bufSig)); - } - - fSuccess = true; - while (fSuccess && nSigsCount > 0) { - // valtype& vchSig = stacktop(-isig); - bufSig = this.stack[this.stack.length - isig]; - // valtype& vchPubKey = stacktop(-ikey); - bufPubkey = this.stack[this.stack.length - ikey]; - - if (!this.checkSignatureEncoding(bufSig) || !this.checkPubkeyEncoding(bufPubkey)) { - return false; - } - - var fOk; - try { - sig = Signature.fromTxFormat(bufSig); - pubkey = PublicKey.fromBuffer(bufPubkey, false); - fOk = this.tx.verifySignature(sig, pubkey, this.nin, subscript, this.sigversion, this.satoshis); - } catch (e) { - //invalid sig or pubkey - fOk = false; - } - - if (fOk) { - isig++; - nSigsCount--; - } - ikey++; - nKeysCount--; - - // If there are more signatures left than keys left, - // then too many signatures have failed - if (nSigsCount > nKeysCount) { - fSuccess = false; - } - } - - - // Clean up stack of actual arguments - while (i-- > 1) { - if (!fSuccess && (this.flags & Interpreter.SCRIPT_VERIFY_NULLFAIL) && - !ikey2 && this.stack[this.stack.length - 1].length) { - - this.errstr = 'SCRIPT_ERR_NULLFAIL'; - return false; - } - - if (ikey2 > 0) { - ikey2--; - } - - this.stack.pop(); - } - - // A bug causes CHECKMULTISIG to consume one extra argument - // whose contents were not checked in any way. - // - // Unfortunately this is a potential source of mutability, - // so optionally verify it is exactly equal to zero prior - // to removing it from the stack. - if (this.stack.length < 1) { - this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION'; - return false; - } - if ((this.flags & Interpreter.SCRIPT_VERIFY_NULLDUMMY) && this.stack[this.stack.length - 1].length) { - this.errstr = 'SCRIPT_ERR_SIG_NULLDUMMY'; - return false; - } - this.stack.pop(); - - this.stack.push(fSuccess ? Interpreter.true : Interpreter.false); - - if (opcodenum === Opcode.OP_CHECKMULTISIGVERIFY) { - if (fSuccess) { - this.stack.pop(); - } else { - this.errstr = 'SCRIPT_ERR_CHECKMULTISIGVERIFY'; - return false; - } - } - } - break; - - default: - this.errstr = 'SCRIPT_ERR_BAD_OPCODE'; - return false; - } - } - - return true; -}; - - -}).call(this,require("buffer").Buffer) -},{"../crypto/bn":271,"../crypto/hash":273,"../crypto/signature":276,"../opcode":287,"../publickey":289,"../transaction":293,"./script":292,"buffer":146,"lodash":311}],292:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var Address = require('../address'); -var BufferReader = require('../encoding/bufferreader'); -var BufferWriter = require('../encoding/bufferwriter'); -var Hash = require('../crypto/hash'); -var Opcode = require('../opcode'); -var PublicKey = require('../publickey'); -var Signature = require('../crypto/signature'); -var Networks = require('../networks'); -var $ = require('../util/preconditions'); -var _ = require('lodash'); -var errors = require('../errors'); -var buffer = require('buffer'); -var BufferUtil = require('../util/buffer'); -var JSUtil = require('../util/js'); - -/** - * A bitcoin transaction script. Each transaction's inputs and outputs - * has a script that is evaluated to validate it's spending. - * - * See https://en.bitcoin.it/wiki/Script - * - * @constructor - * @param {Object|string|Buffer=} from optional data to populate script - */ -var Script = function Script(from) { - if (!(this instanceof Script)) { - return new Script(from); - } - this.chunks = []; - - if (BufferUtil.isBuffer(from)) { - return Script.fromBuffer(from); - } else if (from instanceof Address) { - return Script.fromAddress(from); - } else if (from instanceof Script) { - return Script.fromBuffer(from.toBuffer()); - } else if (_.isString(from)) { - return Script.fromString(from); - } else if (_.isObject(from) && _.isArray(from.chunks)) { - this.set(from); - } -}; - -Script.prototype.set = function(obj) { - $.checkArgument(_.isObject(obj)); - $.checkArgument(_.isArray(obj.chunks)); - this.chunks = obj.chunks; - return this; -}; - -Script.fromBuffer = function(buffer) { - var script = new Script(); - script.chunks = []; - - var br = new BufferReader(buffer); - while (!br.finished()) { - try { - var opcodenum = br.readUInt8(); - - var len, buf; - if (opcodenum > 0 && opcodenum < Opcode.OP_PUSHDATA1) { - len = opcodenum; - script.chunks.push({ - buf: br.read(len), - len: len, - opcodenum: opcodenum - }); - } else if (opcodenum === Opcode.OP_PUSHDATA1) { - len = br.readUInt8(); - buf = br.read(len); - script.chunks.push({ - buf: buf, - len: len, - opcodenum: opcodenum - }); - } else if (opcodenum === Opcode.OP_PUSHDATA2) { - len = br.readUInt16LE(); - buf = br.read(len); - script.chunks.push({ - buf: buf, - len: len, - opcodenum: opcodenum - }); - } else if (opcodenum === Opcode.OP_PUSHDATA4) { - len = br.readUInt32LE(); - buf = br.read(len); - script.chunks.push({ - buf: buf, - len: len, - opcodenum: opcodenum - }); - } else { - script.chunks.push({ - opcodenum: opcodenum - }); - } - } catch (e) { - if (e instanceof RangeError) { - throw new errors.Script.InvalidBuffer(buffer.toString('hex')); - } - throw e; - } - } - - return script; -}; - -Script.prototype.toBuffer = function() { - var bw = new BufferWriter(); - - for (var i = 0; i < this.chunks.length; i++) { - var chunk = this.chunks[i]; - var opcodenum = chunk.opcodenum; - bw.writeUInt8(chunk.opcodenum); - if (chunk.buf) { - if (opcodenum < Opcode.OP_PUSHDATA1) { - bw.write(chunk.buf); - } else if (opcodenum === Opcode.OP_PUSHDATA1) { - bw.writeUInt8(chunk.len); - bw.write(chunk.buf); - } else if (opcodenum === Opcode.OP_PUSHDATA2) { - bw.writeUInt16LE(chunk.len); - bw.write(chunk.buf); - } else if (opcodenum === Opcode.OP_PUSHDATA4) { - bw.writeUInt32LE(chunk.len); - bw.write(chunk.buf); - } - } - } - - return bw.concat(); -}; - -Script.fromASM = function(str) { - var script = new Script(); - script.chunks = []; - - var tokens = str.split(' '); - var i = 0; - while (i < tokens.length) { - var token = tokens[i]; - var opcode = Opcode(token); - var opcodenum = opcode.toNumber(); - - if (_.isUndefined(opcodenum)) { - var buf = Buffer.from(tokens[i], 'hex'); - script.chunks.push({ - buf: buf, - len: buf.length, - opcodenum: buf.length - }); - i = i + 1; - } else if (opcodenum === Opcode.OP_PUSHDATA1 || - opcodenum === Opcode.OP_PUSHDATA2 || - opcodenum === Opcode.OP_PUSHDATA4) { - script.chunks.push({ - buf: Buffer.from(tokens[i + 2], 'hex'), - len: parseInt(tokens[i + 1]), - opcodenum: opcodenum - }); - i = i + 3; - } else { - script.chunks.push({ - opcodenum: opcodenum - }); - i = i + 1; - } - } - return script; -}; - -Script.fromHex = function(str) { - return new Script(new buffer.Buffer(str, 'hex')); -}; - -Script.fromString = function(str) { - if (JSUtil.isHexa(str) || str.length === 0) { - return new Script(new buffer.Buffer(str, 'hex')); - } - var script = new Script(); - script.chunks = []; - - var tokens = str.split(' '); - var i = 0; - while (i < tokens.length) { - var token = tokens[i]; - var opcode = Opcode(token); - var opcodenum = opcode.toNumber(); - - if (_.isUndefined(opcodenum)) { - opcodenum = parseInt(token); - if (opcodenum > 0 && opcodenum < Opcode.OP_PUSHDATA1) { - script.chunks.push({ - buf: Buffer.from(tokens[i + 1].slice(2), 'hex'), - len: opcodenum, - opcodenum: opcodenum - }); - i = i + 2; - } else { - throw new Error('Invalid script: ' + JSON.stringify(str)); - } - } else if (opcodenum === Opcode.OP_PUSHDATA1 || - opcodenum === Opcode.OP_PUSHDATA2 || - opcodenum === Opcode.OP_PUSHDATA4) { - if (tokens[i + 2].slice(0, 2) !== '0x') { - throw new Error('Pushdata data must start with 0x'); - } - script.chunks.push({ - buf: Buffer.from(tokens[i + 2].slice(2), 'hex'), - len: parseInt(tokens[i + 1]), - opcodenum: opcodenum - }); - i = i + 3; - } else { - script.chunks.push({ - opcodenum: opcodenum - }); - i = i + 1; - } - } - return script; -}; - -Script.prototype._chunkToString = function(chunk, type) { - var opcodenum = chunk.opcodenum; - var asm = (type === 'asm'); - var str = ''; - if (!chunk.buf) { - // no data chunk - if (typeof Opcode.reverseMap[opcodenum] !== 'undefined') { - if (asm) { - // A few cases where the opcode name differs from reverseMap - // aside from 1 to 16 data pushes. - if (opcodenum === 0) { - // OP_0 -> 0 - str = str + ' 0'; - } else if(opcodenum === 79) { - // OP_1NEGATE -> 1 - str = str + ' -1'; - } else { - str = str + ' ' + Opcode(opcodenum).toString(); - } - } else { - str = str + ' ' + Opcode(opcodenum).toString(); - } - } else { - var numstr = opcodenum.toString(16); - if (numstr.length % 2 !== 0) { - numstr = '0' + numstr; - } - if (asm) { - str = str + ' ' + numstr; - } else { - str = str + ' ' + '0x' + numstr; - } - } - } else { - // data chunk - if (!asm && opcodenum === Opcode.OP_PUSHDATA1 || - opcodenum === Opcode.OP_PUSHDATA2 || - opcodenum === Opcode.OP_PUSHDATA4) { - str = str + ' ' + Opcode(opcodenum).toString(); - } - if (chunk.len > 0) { - if (asm) { - str = str + ' ' + chunk.buf.toString('hex'); - } else { - str = str + ' ' + chunk.len + ' ' + '0x' + chunk.buf.toString('hex'); - } - } - } - return str; -}; - -Script.prototype.toASM = function() { - var str = ''; - for (var i = 0; i < this.chunks.length; i++) { - var chunk = this.chunks[i]; - str += this._chunkToString(chunk, 'asm'); - } - - return str.substr(1); -}; - -Script.prototype.toString = function() { - var str = ''; - for (var i = 0; i < this.chunks.length; i++) { - var chunk = this.chunks[i]; - str += this._chunkToString(chunk); - } - - return str.substr(1); -}; - -Script.prototype.toHex = function() { - return this.toBuffer().toString('hex'); -}; - -Script.prototype.inspect = function() { - return ''; -}; - -// script classification methods - -/** - * @returns {boolean} if this is a pay to pubkey hash output script - */ -Script.prototype.isPublicKeyHashOut = function() { - return !!(this.chunks.length === 5 && - this.chunks[0].opcodenum === Opcode.OP_DUP && - this.chunks[1].opcodenum === Opcode.OP_HASH160 && - this.chunks[2].buf && - this.chunks[2].buf.length === 20 && - this.chunks[3].opcodenum === Opcode.OP_EQUALVERIFY && - this.chunks[4].opcodenum === Opcode.OP_CHECKSIG); -}; - -/** - * @returns {boolean} if this is a pay to public key hash input script - */ -Script.prototype.isPublicKeyHashIn = function() { - if (this.chunks.length === 2) { - var signatureBuf = this.chunks[0].buf; - var pubkeyBuf = this.chunks[1].buf; - if (signatureBuf && - signatureBuf.length && - signatureBuf[0] === 0x30 && - pubkeyBuf && - pubkeyBuf.length - ) { - var version = pubkeyBuf[0]; - if ((version === 0x04 || - version === 0x06 || - version === 0x07) && pubkeyBuf.length === 65) { - return true; - } else if ((version === 0x03 || version === 0x02) && pubkeyBuf.length === 33) { - return true; - } - } - } - return false; -}; - -Script.prototype.getPublicKey = function() { - $.checkState(this.isPublicKeyOut(), 'Can\'t retrieve PublicKey from a non-PK output'); - return this.chunks[0].buf; -}; - -Script.prototype.getPublicKeyHash = function() { - $.checkState(this.isPublicKeyHashOut(), 'Can\'t retrieve PublicKeyHash from a non-PKH output'); - return this.chunks[2].buf; -}; - -/** - * @returns {boolean} if this is a public key output script - */ -Script.prototype.isPublicKeyOut = function() { - if (this.chunks.length === 2 && - this.chunks[0].buf && - this.chunks[0].buf.length && - this.chunks[1].opcodenum === Opcode.OP_CHECKSIG) { - var pubkeyBuf = this.chunks[0].buf; - var version = pubkeyBuf[0]; - var isVersion = false; - if ((version === 0x04 || - version === 0x06 || - version === 0x07) && pubkeyBuf.length === 65) { - isVersion = true; - } else if ((version === 0x03 || version === 0x02) && pubkeyBuf.length === 33) { - isVersion = true; - } - if (isVersion) { - return PublicKey.isValid(pubkeyBuf); - } - } - return false; -}; - -/** - * @returns {boolean} if this is a pay to public key input script - */ -Script.prototype.isPublicKeyIn = function() { - if (this.chunks.length === 1) { - var signatureBuf = this.chunks[0].buf; - if (signatureBuf && - signatureBuf.length && - signatureBuf[0] === 0x30) { - return true; - } - } - return false; -}; - -/** - * @returns {boolean} if this is a p2sh output script - */ -Script.prototype.isScriptHashOut = function() { - var buf = this.toBuffer(); - return (buf.length === 23 && - buf[0] === Opcode.OP_HASH160 && - buf[1] === 0x14 && - buf[buf.length - 1] === Opcode.OP_EQUAL); -}; - -/** - * @returns {boolean} if this is a p2wsh output script - */ -Script.prototype.isWitnessScriptHashOut = function() { - var buf = this.toBuffer(); - return (buf.length === 34 && buf[0] === 0 && buf[1] === 32); -}; - -/** - * @returns {boolean} if this is a p2wpkh output script - */ -Script.prototype.isWitnessPublicKeyHashOut = function() { - var buf = this.toBuffer(); - return (buf.length === 22 && buf[0] === 0 && buf[1] === 20); -}; - -/** - * @param {Object=} values - The return values - * @param {Number} values.version - Set with the witness version - * @param {Buffer} values.program - Set with the witness program - * @returns {boolean} if this is a p2wpkh output script - */ -Script.prototype.isWitnessProgram = function(values) { - if (!values) { - values = {}; - } - var buf = this.toBuffer(); - if (buf.length < 4 || buf.length > 42) { - return false; - } - if (buf[0] !== Opcode.OP_0 && !(buf[0] >= Opcode.OP_1 && buf[0] <= Opcode.OP_16)) { - return false; - } - - if (buf.length === buf[1] + 2) { - values.version = buf[0]; - values.program = buf.slice(2, buf.length); - return true; - } - - return false; -}; - -/** - * @returns {boolean} if this is a p2sh input script - * Note that these are frequently indistinguishable from pubkeyhashin - */ -Script.prototype.isScriptHashIn = function() { - if (this.chunks.length <= 1) { - return false; - } - var redeemChunk = this.chunks[this.chunks.length - 1]; - var redeemBuf = redeemChunk.buf; - if (!redeemBuf) { - return false; - } - - var redeemScript; - try { - redeemScript = Script.fromBuffer(redeemBuf); - } catch (e) { - if (e instanceof errors.Script.InvalidBuffer) { - return false; - } - throw e; - } - var type = redeemScript.classify(); - return type !== Script.types.UNKNOWN; -}; - -/** - * @returns {boolean} if this is a mutlsig output script - */ -Script.prototype.isMultisigOut = function() { - return (this.chunks.length > 3 && - Opcode.isSmallIntOp(this.chunks[0].opcodenum) && - this.chunks.slice(1, this.chunks.length - 2).every(function(obj) { - return obj.buf && BufferUtil.isBuffer(obj.buf); - }) && - Opcode.isSmallIntOp(this.chunks[this.chunks.length - 2].opcodenum) && - this.chunks[this.chunks.length - 1].opcodenum === Opcode.OP_CHECKMULTISIG); -}; - - -/** - * @returns {boolean} if this is a multisig input script - */ -Script.prototype.isMultisigIn = function() { - return this.chunks.length >= 2 && - this.chunks[0].opcodenum === 0 && - this.chunks.slice(1, this.chunks.length).every(function(obj) { - return obj.buf && - BufferUtil.isBuffer(obj.buf) && - Signature.isTxDER(obj.buf); - }); -}; - -/** - * @returns {boolean} true if this is a valid standard OP_RETURN output - */ -Script.prototype.isDataOut = function() { - return this.chunks.length >= 1 && - this.chunks[0].opcodenum === Opcode.OP_RETURN && - (this.chunks.length === 1 || - (this.chunks.length === 2 && - this.chunks[1].buf && - this.chunks[1].buf.length <= Script.OP_RETURN_STANDARD_SIZE && - this.chunks[1].length === this.chunks.len)); -}; - -/** - * Retrieve the associated data for this script. - * In the case of a pay to public key hash or P2SH, return the hash. - * In the case of a standard OP_RETURN, return the data - * @returns {Buffer} - */ -Script.prototype.getData = function() { - if (this.isDataOut() || this.isScriptHashOut()) { - if (_.isUndefined(this.chunks[1])) { - return Buffer.alloc(0); - } else { - return Buffer.from(this.chunks[1].buf); - } - } - if (this.isPublicKeyHashOut()) { - return Buffer.from(this.chunks[2].buf); - } - throw new Error('Unrecognized script type to get data from'); -}; - -/** - * @returns {boolean} if the script is only composed of data pushing - * opcodes or small int opcodes (OP_0, OP_1, ..., OP_16) - */ -Script.prototype.isPushOnly = function() { - return _.every(this.chunks, function(chunk) { - return chunk.opcodenum <= Opcode.OP_16; - }); -}; - - -Script.types = {}; -Script.types.UNKNOWN = 'Unknown'; -Script.types.PUBKEY_OUT = 'Pay to public key'; -Script.types.PUBKEY_IN = 'Spend from public key'; -Script.types.PUBKEYHASH_OUT = 'Pay to public key hash'; -Script.types.PUBKEYHASH_IN = 'Spend from public key hash'; -Script.types.SCRIPTHASH_OUT = 'Pay to script hash'; -Script.types.SCRIPTHASH_IN = 'Spend from script hash'; -Script.types.MULTISIG_OUT = 'Pay to multisig'; -Script.types.MULTISIG_IN = 'Spend from multisig'; -Script.types.DATA_OUT = 'Data push'; - -Script.OP_RETURN_STANDARD_SIZE = 80; - -/** - * @returns {object} The Script type if it is a known form, - * or Script.UNKNOWN if it isn't - */ -Script.prototype.classify = function() { - if (this._isInput) { - return this.classifyInput(); - } else if (this._isOutput) { - return this.classifyOutput(); - } else { - var outputType = this.classifyOutput(); - return outputType != Script.types.UNKNOWN ? outputType : this.classifyInput(); - } -}; - -Script.outputIdentifiers = {}; -Script.outputIdentifiers.PUBKEY_OUT = Script.prototype.isPublicKeyOut; -Script.outputIdentifiers.PUBKEYHASH_OUT = Script.prototype.isPublicKeyHashOut; -Script.outputIdentifiers.MULTISIG_OUT = Script.prototype.isMultisigOut; -Script.outputIdentifiers.SCRIPTHASH_OUT = Script.prototype.isScriptHashOut; -Script.outputIdentifiers.DATA_OUT = Script.prototype.isDataOut; - -/** - * @returns {object} The Script type if it is a known form, - * or Script.UNKNOWN if it isn't - */ -Script.prototype.classifyOutput = function() { - for (var type in Script.outputIdentifiers) { - if (Script.outputIdentifiers[type].bind(this)()) { - return Script.types[type]; - } - } - return Script.types.UNKNOWN; -}; - -Script.inputIdentifiers = {}; -Script.inputIdentifiers.PUBKEY_IN = Script.prototype.isPublicKeyIn; -Script.inputIdentifiers.PUBKEYHASH_IN = Script.prototype.isPublicKeyHashIn; -Script.inputIdentifiers.MULTISIG_IN = Script.prototype.isMultisigIn; -Script.inputIdentifiers.SCRIPTHASH_IN = Script.prototype.isScriptHashIn; - -/** - * @returns {object} The Script type if it is a known form, - * or Script.UNKNOWN if it isn't - */ -Script.prototype.classifyInput = function() { - for (var type in Script.inputIdentifiers) { - if (Script.inputIdentifiers[type].bind(this)()) { - return Script.types[type]; - } - } - return Script.types.UNKNOWN; -}; - - -/** - * @returns {boolean} if script is one of the known types - */ -Script.prototype.isStandard = function() { - // TODO: Add BIP62 compliance - return this.classify() !== Script.types.UNKNOWN; -}; - - -// Script construction methods - -/** - * Adds a script element at the start of the script. - * @param {*} obj a string, number, Opcode, Buffer, or object to add - * @returns {Script} this script instance - */ -Script.prototype.prepend = function(obj) { - this._addByType(obj, true); - return this; -}; - -/** - * Compares a script with another script - */ -Script.prototype.equals = function(script) { - $.checkState(script instanceof Script, 'Must provide another script'); - if (this.chunks.length !== script.chunks.length) { - return false; - } - var i; - for (i = 0; i < this.chunks.length; i++) { - if (BufferUtil.isBuffer(this.chunks[i].buf) && !BufferUtil.isBuffer(script.chunks[i].buf)) { - return false; - } - if (BufferUtil.isBuffer(this.chunks[i].buf) && !BufferUtil.equals(this.chunks[i].buf, script.chunks[i].buf)) { - return false; - } else if (this.chunks[i].opcodenum !== script.chunks[i].opcodenum) { - return false; - } - } - return true; -}; - -/** - * Adds a script element to the end of the script. - * - * @param {*} obj a string, number, Opcode, Buffer, or object to add - * @returns {Script} this script instance - * - */ -Script.prototype.add = function(obj) { - this._addByType(obj, false); - return this; -}; - -Script.prototype._addByType = function(obj, prepend) { - if (typeof obj === 'string') { - this._addOpcode(obj, prepend); - } else if (typeof obj === 'number') { - this._addOpcode(obj, prepend); - } else if (obj instanceof Opcode) { - this._addOpcode(obj, prepend); - } else if (BufferUtil.isBuffer(obj)) { - this._addBuffer(obj, prepend); - } else if (obj instanceof Script) { - this.chunks = this.chunks.concat(obj.chunks); - } else if (typeof obj === 'object') { - this._insertAtPosition(obj, prepend); - } else { - throw new Error('Invalid script chunk'); - } -}; - -Script.prototype._insertAtPosition = function(op, prepend) { - if (prepend) { - this.chunks.unshift(op); - } else { - this.chunks.push(op); - } -}; - -Script.prototype._addOpcode = function(opcode, prepend) { - var op; - if (typeof opcode === 'number') { - op = opcode; - } else if (opcode instanceof Opcode) { - op = opcode.toNumber(); - } else { - op = Opcode(opcode).toNumber(); - } - this._insertAtPosition({ - opcodenum: op - }, prepend); - return this; -}; - -Script.prototype._addBuffer = function(buf, prepend) { - var opcodenum; - var len = buf.length; - if (len >= 0 && len < Opcode.OP_PUSHDATA1) { - opcodenum = len; - } else if (len < Math.pow(2, 8)) { - opcodenum = Opcode.OP_PUSHDATA1; - } else if (len < Math.pow(2, 16)) { - opcodenum = Opcode.OP_PUSHDATA2; - } else if (len < Math.pow(2, 32)) { - opcodenum = Opcode.OP_PUSHDATA4; - } else { - throw new Error('You can\'t push that much data'); - } - this._insertAtPosition({ - buf: buf, - len: len, - opcodenum: opcodenum - }, prepend); - return this; -}; - -Script.prototype.hasCodeseparators = function() { - for (var i = 0; i < this.chunks.length; i++) { - if (this.chunks[i].opcodenum === Opcode.OP_CODESEPARATOR) { - return true; - } - } - return false; -}; - -Script.prototype.removeCodeseparators = function() { - var chunks = []; - for (var i = 0; i < this.chunks.length; i++) { - if (this.chunks[i].opcodenum !== Opcode.OP_CODESEPARATOR) { - chunks.push(this.chunks[i]); - } - } - this.chunks = chunks; - return this; -}; - -// high level script builder methods - -/** - * @returns {Script} a new Multisig output script for given public keys, - * requiring m of those public keys to spend - * @param {PublicKey[]} publicKeys - list of all public keys controlling the output - * @param {number} threshold - amount of required signatures to spend the output - * @param {Object=} opts - Several options: - * - noSorting: defaults to false, if true, don't sort the given - * public keys before creating the script - */ -Script.buildMultisigOut = function(publicKeys, threshold, opts) { - $.checkArgument(threshold <= publicKeys.length, - 'Number of required signatures must be less than or equal to the number of public keys'); - opts = opts || {}; - var script = new Script(); - script.add(Opcode.smallInt(threshold)); - publicKeys = _.map(publicKeys, PublicKey); - var sorted = publicKeys; - if (!opts.noSorting) { - sorted = _.sortBy(publicKeys, function(publicKey) { - return publicKey.toString('hex'); - }); - } - for (var i = 0; i < sorted.length; i++) { - var publicKey = sorted[i]; - script.add(publicKey.toBuffer()); - } - script.add(Opcode.smallInt(publicKeys.length)); - script.add(Opcode.OP_CHECKMULTISIG); - return script; -}; - -Script.buildWitnessMultisigOutFromScript = function(script) { - if (script instanceof Script) { - var s = new Script(); - s.add(Opcode.OP_0); - s.add(Hash.sha256(script.toBuffer())); - return s; - } else { - throw new TypeError('First argument is expected to be a p2sh script'); - } -}; - -/** - * A new Multisig input script for the given public keys, requiring m of those public keys to spend - * - * @param {PublicKey[]} pubkeys list of all public keys controlling the output - * @param {number} threshold amount of required signatures to spend the output - * @param {Array} signatures and array of signature buffers to append to the script - * @param {Object=} opts - * @param {boolean=} opts.noSorting don't sort the given public keys before creating the script (false by default) - * @param {Script=} opts.cachedMultisig don't recalculate the redeemScript - * - * @returns {Script} - */ -Script.buildMultisigIn = function(pubkeys, threshold, signatures, opts) { - $.checkArgument(_.isArray(pubkeys)); - $.checkArgument(_.isNumber(threshold)); - $.checkArgument(_.isArray(signatures)); - opts = opts || {}; - var s = new Script(); - s.add(Opcode.OP_0); - _.each(signatures, function(signature) { - $.checkArgument(BufferUtil.isBuffer(signature), 'Signatures must be an array of Buffers'); - // TODO: allow signatures to be an array of Signature objects - s.add(signature); - }); - return s; -}; - -/** - * A new P2SH Multisig input script for the given public keys, requiring m of those public keys to spend - * - * @param {PublicKey[]} pubkeys list of all public keys controlling the output - * @param {number} threshold amount of required signatures to spend the output - * @param {Array} signatures and array of signature buffers to append to the script - * @param {Object=} opts - * @param {boolean=} opts.noSorting don't sort the given public keys before creating the script (false by default) - * @param {Script=} opts.cachedMultisig don't recalculate the redeemScript - * - * @returns {Script} - */ -Script.buildP2SHMultisigIn = function(pubkeys, threshold, signatures, opts) { - $.checkArgument(_.isArray(pubkeys)); - $.checkArgument(_.isNumber(threshold)); - $.checkArgument(_.isArray(signatures)); - opts = opts || {}; - var s = new Script(); - s.add(Opcode.OP_0); - _.each(signatures, function(signature) { - $.checkArgument(BufferUtil.isBuffer(signature), 'Signatures must be an array of Buffers'); - // TODO: allow signatures to be an array of Signature objects - s.add(signature); - }); - s.add((opts.cachedMultisig || Script.buildMultisigOut(pubkeys, threshold, opts)).toBuffer()); - return s; -}; - -/** - * @returns {Script} a new pay to public key hash output for the given - * address or public key - * @param {(Address|PublicKey)} to - destination address or public key - */ -Script.buildPublicKeyHashOut = function(to) { - $.checkArgument(!_.isUndefined(to)); - $.checkArgument(to instanceof PublicKey || to instanceof Address || _.isString(to)); - if (to instanceof PublicKey) { - to = to.toAddress(); - } else if (_.isString(to)) { - to = new Address(to); - } - var s = new Script(); - s.add(Opcode.OP_DUP) - .add(Opcode.OP_HASH160) - .add(to.hashBuffer) - .add(Opcode.OP_EQUALVERIFY) - .add(Opcode.OP_CHECKSIG); - s._network = to.network; - return s; -}; - -/** - * @returns {Script} a new pay to public key output for the given - * public key - */ -Script.buildPublicKeyOut = function(pubkey) { - $.checkArgument(pubkey instanceof PublicKey); - var s = new Script(); - s.add(pubkey.toBuffer()) - .add(Opcode.OP_CHECKSIG); - return s; -}; - -/** - * @returns {Script} a new OP_RETURN script with data - * @param {(string|Buffer)} data - the data to embed in the output - * @param {(string)} encoding - the type of encoding of the string - */ -Script.buildDataOut = function(data, encoding) { - $.checkArgument(_.isUndefined(data) || _.isString(data) || BufferUtil.isBuffer(data)); - if (_.isString(data)) { - data = Buffer.from(data, encoding); - } - var s = new Script(); - s.add(Opcode.OP_RETURN); - if (!_.isUndefined(data)) { - s.add(data); - } - return s; -}; - -/** - * @param {Script|Address} script - the redeemScript for the new p2sh output. - * It can also be a p2sh address - * @returns {Script} new pay to script hash script for given script - */ -Script.buildScriptHashOut = function(script) { - $.checkArgument(script instanceof Script || - (script instanceof Address && script.isPayToScriptHash())); - var s = new Script(); - s.add(Opcode.OP_HASH160) - .add(script instanceof Address ? script.hashBuffer : Hash.sha256ripemd160(script.toBuffer())) - .add(Opcode.OP_EQUAL); - - s._network = script._network || script.network; - return s; -}; - -/** - * Builds a scriptSig (a script for an input) that signs a public key output script. - * - * @param {Signature|Buffer} signature - a Signature object, or the signature in DER canonical encoding - * @param {number=} sigtype - the type of the signature (defaults to SIGHASH_ALL) - */ -Script.buildPublicKeyIn = function(signature, sigtype) { - $.checkArgument(signature instanceof Signature || BufferUtil.isBuffer(signature)); - $.checkArgument(_.isUndefined(sigtype) || _.isNumber(sigtype)); - if (signature instanceof Signature) { - signature = signature.toBuffer(); - } - var script = new Script(); - script.add(BufferUtil.concat([ - signature, - BufferUtil.integerAsSingleByteBuffer(sigtype || Signature.SIGHASH_ALL) - ])); - return script; -}; - -/** - * Builds a scriptSig (a script for an input) that signs a public key hash - * output script. - * - * @param {Buffer|string|PublicKey} publicKey - * @param {Signature|Buffer} signature - a Signature object, or the signature in DER canonical encoding - * @param {number=} sigtype - the type of the signature (defaults to SIGHASH_ALL) - */ -Script.buildPublicKeyHashIn = function(publicKey, signature, sigtype) { - $.checkArgument(signature instanceof Signature || BufferUtil.isBuffer(signature)); - $.checkArgument(_.isUndefined(sigtype) || _.isNumber(sigtype)); - if (signature instanceof Signature) { - signature = signature.toBuffer(); - } - var script = new Script() - .add(BufferUtil.concat([ - signature, - BufferUtil.integerAsSingleByteBuffer(sigtype || Signature.SIGHASH_ALL) - ])) - .add(new PublicKey(publicKey).toBuffer()); - return script; -}; - -/** - * @returns {Script} an empty script - */ -Script.empty = function() { - return new Script(); -}; - -/** - * @returns {Script} a new pay to script hash script that pays to this script - */ -Script.prototype.toScriptHashOut = function() { - return Script.buildScriptHashOut(this); -}; - -/** - * @return {Script} an output script built from the address - */ -Script.fromAddress = function(address) { - address = Address(address); - if (address.isPayToScriptHash()) { - return Script.buildScriptHashOut(address); - } else if (address.isPayToPublicKeyHash()) { - return Script.buildPublicKeyHashOut(address); - } - throw new errors.Script.UnrecognizedAddress(address); -}; - -/** - * Will return the associated address information object - * @return {Address|boolean} - */ -Script.prototype.getAddressInfo = function(opts) { - if (this._isInput) { - return this._getInputAddressInfo(); - } else if (this._isOutput) { - return this._getOutputAddressInfo(); - } else { - var info = this._getOutputAddressInfo(); - if (!info) { - return this._getInputAddressInfo(); - } - return info; - } -}; - -/** - * Will return the associated output scriptPubKey address information object - * @return {Address|boolean} - * @private - */ -Script.prototype._getOutputAddressInfo = function() { - var info = {}; - if (this.isScriptHashOut()) { - info.hashBuffer = this.getData(); - info.type = Address.PayToScriptHash; - } else if (this.isPublicKeyHashOut()) { - info.hashBuffer = this.getData(); - info.type = Address.PayToPublicKeyHash; - } else { - return false; - } - return info; -}; - -/** - * Will return the associated input scriptSig address information object - * @return {Address|boolean} - * @private - */ -Script.prototype._getInputAddressInfo = function() { - var info = {}; - if (this.isPublicKeyHashIn()) { - // hash the publickey found in the scriptSig - info.hashBuffer = Hash.sha256ripemd160(this.chunks[1].buf); - info.type = Address.PayToPublicKeyHash; - } else if (this.isScriptHashIn()) { - // hash the redeemscript found at the end of the scriptSig - info.hashBuffer = Hash.sha256ripemd160(this.chunks[this.chunks.length - 1].buf); - info.type = Address.PayToScriptHash; - } else { - return false; - } - return info; -}; - -/** - * @param {Network=} network - * @return {Address|boolean} the associated address for this script if possible, or false - */ -Script.prototype.toAddress = function(network) { - var info = this.getAddressInfo(); - if (!info) { - return false; - } - info.network = Networks.get(network) || this._network || Networks.defaultNetwork; - return new Address(info); -}; - -/** - * Analogous to bitcoind's FindAndDelete. Find and delete equivalent chunks, - * typically used with push data chunks. Note that this will find and delete - * not just the same data, but the same data with the same push data op as - * produced by default. i.e., if a pushdata in a tx does not use the minimal - * pushdata op, then when you try to remove the data it is pushing, it will not - * be removed, because they do not use the same pushdata op. - */ -Script.prototype.findAndDelete = function(script) { - var buf = script.toBuffer(); - var hex = buf.toString('hex'); - for (var i = 0; i < this.chunks.length; i++) { - var script2 = Script({ - chunks: [this.chunks[i]] - }); - var buf2 = script2.toBuffer(); - var hex2 = buf2.toString('hex'); - if (hex === hex2) { - this.chunks.splice(i, 1); - } - } - return this; -}; - -/** - * Comes from bitcoind's script interpreter CheckMinimalPush function - * @returns {boolean} if the chunk {i} is the smallest way to push that particular data. - */ -Script.prototype.checkMinimalPush = function(i) { - var chunk = this.chunks[i]; - var buf = chunk.buf; - var opcodenum = chunk.opcodenum; - if (!buf) { - return true; - } - if (buf.length === 0) { - // Could have used OP_0. - return opcodenum === Opcode.OP_0; - } else if (buf.length === 1 && buf[0] >= 1 && buf[0] <= 16) { - // Could have used OP_1 .. OP_16. - return opcodenum === Opcode.OP_1 + (buf[0] - 1); - } else if (buf.length === 1 && buf[0] === 0x81) { - // Could have used OP_1NEGATE - return opcodenum === Opcode.OP_1NEGATE; - } else if (buf.length <= 75) { - // Could have used a direct push (opcode indicating number of bytes pushed + those bytes). - return opcodenum === buf.length; - } else if (buf.length <= 255) { - // Could have used OP_PUSHDATA. - return opcodenum === Opcode.OP_PUSHDATA1; - } else if (buf.length <= 65535) { - // Could have used OP_PUSHDATA2. - return opcodenum === Opcode.OP_PUSHDATA2; - } - return true; -}; - -/** - * Comes from bitcoind's script DecodeOP_N function - * @param {number} opcode - * @returns {number} numeric value in range of 0 to 16 - */ -Script.prototype._decodeOP_N = function(opcode) { - if (opcode === Opcode.OP_0) { - return 0; - } else if (opcode >= Opcode.OP_1 && opcode <= Opcode.OP_16) { - return opcode - (Opcode.OP_1 - 1); - } else { - throw new Error('Invalid opcode: ' + JSON.stringify(opcode)); - } -}; - -/** - * Comes from bitcoind's script GetSigOpCount(boolean) function - * @param {boolean} use current (true) or pre-version-0.6 (false) logic - * @returns {number} number of signature operations required by this script - */ -Script.prototype.getSignatureOperationsCount = function(accurate) { - accurate = (_.isUndefined(accurate) ? true : accurate); - var self = this; - var n = 0; - var lastOpcode = Opcode.OP_INVALIDOPCODE; - _.each(self.chunks, function getChunk(chunk) { - var opcode = chunk.opcodenum; - if (opcode == Opcode.OP_CHECKSIG || opcode == Opcode.OP_CHECKSIGVERIFY) { - n++; - } else if (opcode == Opcode.OP_CHECKMULTISIG || opcode == Opcode.OP_CHECKMULTISIGVERIFY) { - if (accurate && lastOpcode >= Opcode.OP_1 && lastOpcode <= Opcode.OP_16) { - n += self._decodeOP_N(lastOpcode); - } else { - n += 20; - } - } - lastOpcode = opcode; - }); - return n; -}; - -module.exports = Script; - -}).call(this,require("buffer").Buffer) -},{"../address":266,"../crypto/hash":273,"../crypto/signature":276,"../encoding/bufferreader":279,"../encoding/bufferwriter":280,"../errors":282,"../networks":286,"../opcode":287,"../publickey":289,"../util/buffer":308,"../util/js":309,"../util/preconditions":310,"buffer":146,"lodash":311}],293:[function(require,module,exports){ -module.exports = require('./transaction'); - -module.exports.Input = require('./input'); -module.exports.Output = require('./output'); -module.exports.UnspentOutput = require('./unspentoutput'); -module.exports.Signature = require('./signature'); -module.exports.Sighash = require('./sighash'); -module.exports.SighashWitness = require('./sighashwitness'); - -},{"./input":294,"./output":300,"./sighash":301,"./sighashwitness":302,"./signature":303,"./transaction":304,"./unspentoutput":305}],294:[function(require,module,exports){ -module.exports = require('./input'); - -module.exports.PublicKey = require('./publickey'); -module.exports.PublicKeyHash = require('./publickeyhash'); -module.exports.MultiSig = require('./multisig.js'); -module.exports.MultiSigScriptHash = require('./multisigscripthash.js'); - -},{"./input":295,"./multisig.js":296,"./multisigscripthash.js":297,"./publickey":298,"./publickeyhash":299}],295:[function(require,module,exports){ -'use strict'; - -var _ = require('lodash'); -var $ = require('../../util/preconditions'); -var errors = require('../../errors'); -var BufferWriter = require('../../encoding/bufferwriter'); -var buffer = require('buffer'); -var BufferUtil = require('../../util/buffer'); -var JSUtil = require('../../util/js'); -var Script = require('../../script'); -var Sighash = require('../sighash'); -var Output = require('../output'); - -var MAXINT = 0xffffffff; // Math.pow(2, 32) - 1; -var DEFAULT_RBF_SEQNUMBER = MAXINT - 2; -var DEFAULT_SEQNUMBER = MAXINT; -var DEFAULT_LOCKTIME_SEQNUMBER = MAXINT - 1; - -function Input(params) { - if (!(this instanceof Input)) { - return new Input(params); - } - if (params) { - return this._fromObject(params); - } -} - -Input.MAXINT = MAXINT; -Input.DEFAULT_SEQNUMBER = DEFAULT_SEQNUMBER; -Input.DEFAULT_LOCKTIME_SEQNUMBER = DEFAULT_LOCKTIME_SEQNUMBER; -Input.DEFAULT_RBF_SEQNUMBER = DEFAULT_RBF_SEQNUMBER; - -Object.defineProperty(Input.prototype, 'script', { - configurable: false, - enumerable: true, - get: function() { - if (this.isNull()) { - return null; - } - if (!this._script) { - this._script = new Script(this._scriptBuffer); - this._script._isInput = true; - } - return this._script; - } -}); - -Input.fromObject = function(obj) { - $.checkArgument(_.isObject(obj)); - var input = new Input(); - return input._fromObject(obj); -}; - -Input.prototype._fromObject = function(params) { - var prevTxId; - if (_.isString(params.prevTxId) && JSUtil.isHexa(params.prevTxId)) { - prevTxId = new buffer.Buffer(params.prevTxId, 'hex'); - } else { - prevTxId = params.prevTxId; - } - this.witnesses = []; - this.output = params.output ? - (params.output instanceof Output ? params.output : new Output(params.output)) : undefined; - this.prevTxId = prevTxId || params.txidbuf; - this.outputIndex = _.isUndefined(params.outputIndex) ? params.txoutnum : params.outputIndex; - this.sequenceNumber = _.isUndefined(params.sequenceNumber) ? - (_.isUndefined(params.seqnum) ? DEFAULT_SEQNUMBER : params.seqnum) : params.sequenceNumber; - if (_.isUndefined(params.script) && _.isUndefined(params.scriptBuffer)) { - throw new errors.Transaction.Input.MissingScript(); - } - this.setScript(params.scriptBuffer || params.script); - return this; -}; - -Input.prototype.toObject = Input.prototype.toJSON = function toObject() { - var obj = { - prevTxId: this.prevTxId.toString('hex'), - outputIndex: this.outputIndex, - sequenceNumber: this.sequenceNumber, - script: this._scriptBuffer.toString('hex'), - }; - // add human readable form if input contains valid script - if (this.script) { - obj.scriptString = this.script.toString(); - } - if (this.output) { - obj.output = this.output.toObject(); - } - return obj; -}; - -Input.fromBufferReader = function(br) { - var input = new Input(); - input.prevTxId = br.readReverse(32); - input.outputIndex = br.readUInt32LE(); - input._scriptBuffer = br.readVarLengthBuffer(); - input.sequenceNumber = br.readUInt32LE(); - // TODO: return different classes according to which input it is - // e.g: CoinbaseInput, PublicKeyHashInput, MultiSigScriptHashInput, etc. - return input; -}; - -Input.prototype.toBufferWriter = function(writer) { - if (!writer) { - writer = new BufferWriter(); - } - writer.writeReverse(this.prevTxId); - writer.writeUInt32LE(this.outputIndex); - var script = this._scriptBuffer; - writer.writeVarintNum(script.length); - writer.write(script); - writer.writeUInt32LE(this.sequenceNumber); - return writer; -}; - -Input.prototype.setScript = function(script) { - this._script = null; - if (script instanceof Script) { - this._script = script; - this._script._isInput = true; - this._scriptBuffer = script.toBuffer(); - } else if (JSUtil.isHexa(script)) { - // hex string script - this._scriptBuffer = new buffer.Buffer(script, 'hex'); - } else if (_.isString(script)) { - // human readable string script - this._script = new Script(script); - this._script._isInput = true; - this._scriptBuffer = this._script.toBuffer(); - } else if (BufferUtil.isBuffer(script)) { - // buffer script - this._scriptBuffer = new buffer.Buffer(script); - } else { - throw new TypeError('Invalid argument type: script'); - } - return this; -}; - -/** - * Retrieve signatures for the provided PrivateKey. - * - * @param {Transaction} transaction - the transaction to be signed - * @param {PrivateKey} privateKey - the private key to use when signing - * @param {number} inputIndex - the index of this input in the provided transaction - * @param {number} sigType - defaults to Signature.SIGHASH_ALL - * @param {Buffer} addressHash - if provided, don't calculate the hash of the - * public key associated with the private key provided - * @abstract - */ -Input.prototype.getSignatures = function() { - throw new errors.AbstractMethodInvoked( - 'Trying to sign unsupported output type (only P2PKH and P2SH multisig inputs are supported)' + - ' for input: ' + JSON.stringify(this) - ); -}; - -Input.prototype.getSatoshisBuffer = function() { - $.checkState(this.output instanceof Output); - $.checkState(this.output._satoshisBN); - return new BufferWriter().writeUInt64LEBN(this.output._satoshisBN).toBuffer(); -}; - - -Input.prototype.isFullySigned = function() { - throw new errors.AbstractMethodInvoked('Input#isFullySigned'); -}; - -Input.prototype.isFinal = function() { - return this.sequenceNumber !== 4294967295; -}; - -Input.prototype.addSignature = function() { - throw new errors.AbstractMethodInvoked('Input#addSignature'); -}; - -Input.prototype.clearSignatures = function() { - throw new errors.AbstractMethodInvoked('Input#clearSignatures'); -}; - -Input.prototype.hasWitnesses = function() { - if (this.witnesses && this.witnesses.length > 0) { - return true; - } - return false; -}; - -Input.prototype.getWitnesses = function() { - return this.witnesses; -}; - -Input.prototype.setWitnesses = function(witnesses) { - this.witnesses = witnesses; -}; - -Input.prototype.isValidSignature = function(transaction, signature) { - // FIXME: Refactor signature so this is not necessary - signature.signature.nhashtype = signature.sigtype; - return Sighash.verify( - transaction, - signature.signature, - signature.publicKey, - signature.inputIndex, - this.output.script - ); -}; - -/** - * @returns true if this is a coinbase input (represents no input) - */ -Input.prototype.isNull = function() { - return this.prevTxId.toString('hex') === '0000000000000000000000000000000000000000000000000000000000000000' && - this.outputIndex === 0xffffffff; -}; - -Input.prototype._estimateSize = function() { - return this.toBufferWriter().toBuffer().length; -}; - -module.exports = Input; - -},{"../../encoding/bufferwriter":280,"../../errors":282,"../../script":290,"../../util/buffer":308,"../../util/js":309,"../../util/preconditions":310,"../output":300,"../sighash":301,"buffer":146,"lodash":311}],296:[function(require,module,exports){ -'use strict'; - -var _ = require('lodash'); -var inherits = require('inherits'); -var Transaction = require('../transaction'); -var Input = require('./input'); -var Output = require('../output'); -var $ = require('../../util/preconditions'); - -var Script = require('../../script'); -var Signature = require('../../crypto/signature'); -var Sighash = require('../sighash'); -var PublicKey = require('../../publickey'); -var BufferUtil = require('../../util/buffer'); -var TransactionSignature = require('../signature'); - -/** - * @constructor - */ -function MultiSigInput(input, pubkeys, threshold, signatures, opts) { - opts = opts || {}; - Input.apply(this, arguments); - var self = this; - pubkeys = pubkeys || input.publicKeys; - threshold = threshold || input.threshold; - signatures = signatures || input.signatures; - if (opts.noSorting) { - this.publicKeys = pubkeys - } else { - this.publicKeys = _.sortBy(pubkeys, function(publicKey) { return publicKey.toString('hex'); }); - } - $.checkState(Script.buildMultisigOut(this.publicKeys, threshold).equals(this.output.script), - 'Provided public keys don\'t match to the provided output script'); - this.publicKeyIndex = {}; - _.each(this.publicKeys, function(publicKey, index) { - self.publicKeyIndex[publicKey.toString()] = index; - }); - this.threshold = threshold; - // Empty array of signatures - this.signatures = signatures ? this._deserializeSignatures(signatures) : new Array(this.publicKeys.length); -} -inherits(MultiSigInput, Input); - -MultiSigInput.prototype.toObject = function() { - var obj = Input.prototype.toObject.apply(this, arguments); - obj.threshold = this.threshold; - obj.publicKeys = _.map(this.publicKeys, function(publicKey) { return publicKey.toString(); }); - obj.signatures = this._serializeSignatures(); - return obj; -}; - -MultiSigInput.prototype._deserializeSignatures = function(signatures) { - return _.map(signatures, function(signature) { - if (!signature) { - return undefined; - } - return new TransactionSignature(signature); - }); -}; - -MultiSigInput.prototype._serializeSignatures = function() { - return _.map(this.signatures, function(signature) { - if (!signature) { - return undefined; - } - return signature.toObject(); - }); -}; - -MultiSigInput.prototype.getSignatures = function(transaction, privateKey, index, sigtype) { - $.checkState(this.output instanceof Output); - sigtype = sigtype || Signature.SIGHASH_ALL; - - var self = this; - var results = []; - _.each(this.publicKeys, function(publicKey) { - if (publicKey.toString() === privateKey.publicKey.toString()) { - results.push(new TransactionSignature({ - publicKey: privateKey.publicKey, - prevTxId: self.prevTxId, - outputIndex: self.outputIndex, - inputIndex: index, - signature: Sighash.sign(transaction, privateKey, sigtype, index, self.output.script), - sigtype: sigtype - })); - } - }); - - return results; -}; - -MultiSigInput.prototype.addSignature = function(transaction, signature) { - $.checkState(!this.isFullySigned(), 'All needed signatures have already been added'); - $.checkArgument(!_.isUndefined(this.publicKeyIndex[signature.publicKey.toString()]), - 'Signature has no matching public key'); - $.checkState(this.isValidSignature(transaction, signature)); - this.signatures[this.publicKeyIndex[signature.publicKey.toString()]] = signature; - this._updateScript(); - return this; -}; - -MultiSigInput.prototype._updateScript = function() { - this.setScript(Script.buildMultisigIn( - this.publicKeys, - this.threshold, - this._createSignatures() - )); - return this; -}; - -MultiSigInput.prototype._createSignatures = function() { - return _.map( - _.filter(this.signatures, function(signature) { return !_.isUndefined(signature); }), - function(signature) { - return BufferUtil.concat([ - signature.signature.toDER(), - BufferUtil.integerAsSingleByteBuffer(signature.sigtype) - ]); - } - ); -}; - -MultiSigInput.prototype.clearSignatures = function() { - this.signatures = new Array(this.publicKeys.length); - this._updateScript(); -}; - -MultiSigInput.prototype.isFullySigned = function() { - return this.countSignatures() === this.threshold; -}; - -MultiSigInput.prototype.countMissingSignatures = function() { - return this.threshold - this.countSignatures(); -}; - -MultiSigInput.prototype.countSignatures = function() { - return _.reduce(this.signatures, function(sum, signature) { - return sum + (!!signature); - }, 0); -}; - -MultiSigInput.prototype.publicKeysWithoutSignature = function() { - var self = this; - return _.filter(this.publicKeys, function(publicKey) { - return !(self.signatures[self.publicKeyIndex[publicKey.toString()]]); - }); -}; - -MultiSigInput.prototype.isValidSignature = function(transaction, signature) { - // FIXME: Refactor signature so this is not necessary - signature.signature.nhashtype = signature.sigtype; - return Sighash.verify( - transaction, - signature.signature, - signature.publicKey, - signature.inputIndex, - this.output.script - ); -}; - -/** - * - * @param {Buffer[]} signatures - * @param {PublicKey[]} publicKeys - * @param {Transaction} transaction - * @param {Integer} inputIndex - * @param {Input} input - * @returns {TransactionSignature[]} - */ -MultiSigInput.normalizeSignatures = function(transaction, input, inputIndex, signatures, publicKeys) { - return publicKeys.map(function (pubKey) { - var signatureMatch = null; - signatures = signatures.filter(function (signatureBuffer) { - if (signatureMatch) { - return true; - } - - var signature = new TransactionSignature({ - signature: Signature.fromTxFormat(signatureBuffer), - publicKey: pubKey, - prevTxId: input.prevTxId, - outputIndex: input.outputIndex, - inputIndex: inputIndex, - sigtype: Signature.SIGHASH_ALL - }); - - signature.signature.nhashtype = signature.sigtype; - var isMatch = Sighash.verify( - transaction, - signature.signature, - signature.publicKey, - signature.inputIndex, - input.output.script - ); - - if (isMatch) { - signatureMatch = signature; - return false; - } - - return true; - }); - - return signatureMatch ? signatureMatch : null; - }); -}; - -MultiSigInput.OPCODES_SIZE = 1; // 0 -MultiSigInput.SIGNATURE_SIZE = 73; // size (1) + DER (<=72) - -MultiSigInput.prototype._estimateSize = function() { - return MultiSigInput.OPCODES_SIZE + - this.threshold * MultiSigInput.SIGNATURE_SIZE; -}; - -module.exports = MultiSigInput; - -},{"../../crypto/signature":276,"../../publickey":289,"../../script":290,"../../util/buffer":308,"../../util/preconditions":310,"../output":300,"../sighash":301,"../signature":303,"../transaction":304,"./input":295,"inherits":313,"lodash":311}],297:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -/* jshint maxparams:5 */ - -var _ = require('lodash'); -var inherits = require('inherits'); -var Input = require('./input'); -var Output = require('../output'); -var $ = require('../../util/preconditions'); - -var Script = require('../../script'); -var Signature = require('../../crypto/signature'); -var Sighash = require('../sighash'); -var SighashWitness = require('../sighashwitness'); -var BufferWriter = require('../../encoding/bufferwriter'); -var BufferUtil = require('../../util/buffer'); -var TransactionSignature = require('../signature'); - -/** - * @constructor - */ -function MultiSigScriptHashInput(input, pubkeys, threshold, signatures, nestedWitness, opts) { - /* jshint maxstatements:20 */ - opts = opts || {}; - Input.apply(this, arguments); - var self = this; - pubkeys = pubkeys || input.publicKeys; - threshold = threshold || input.threshold; - signatures = signatures || input.signatures; - this.nestedWitness = nestedWitness ? true : false; - if (opts.noSorting) { - this.publicKeys = pubkeys - } else { - this.publicKeys = _.sortBy(pubkeys, function(publicKey) { return publicKey.toString('hex'); }); - } - this.redeemScript = Script.buildMultisigOut(this.publicKeys, threshold); - if (this.nestedWitness) { - var nested = Script.buildWitnessMultisigOutFromScript(this.redeemScript); - $.checkState(Script.buildScriptHashOut(nested).equals(this.output.script), - 'Provided public keys don\'t hash to the provided output (nested witness)'); - var scriptSig = new Script(); - scriptSig.add(nested.toBuffer()); - this.setScript(scriptSig); - } else { - $.checkState(Script.buildScriptHashOut(this.redeemScript).equals(this.output.script), - 'Provided public keys don\'t hash to the provided output'); - } - - this.publicKeyIndex = {}; - _.each(this.publicKeys, function(publicKey, index) { - self.publicKeyIndex[publicKey.toString()] = index; - }); - this.threshold = threshold; - // Empty array of signatures - this.signatures = signatures ? this._deserializeSignatures(signatures) : new Array(this.publicKeys.length); -} -inherits(MultiSigScriptHashInput, Input); - -MultiSigScriptHashInput.prototype.toObject = function() { - var obj = Input.prototype.toObject.apply(this, arguments); - obj.threshold = this.threshold; - obj.publicKeys = _.map(this.publicKeys, function(publicKey) { return publicKey.toString(); }); - obj.signatures = this._serializeSignatures(); - return obj; -}; - -MultiSigScriptHashInput.prototype._deserializeSignatures = function(signatures) { - return _.map(signatures, function(signature) { - if (!signature) { - return undefined; - } - return new TransactionSignature(signature); - }); -}; - -MultiSigScriptHashInput.prototype._serializeSignatures = function() { - return _.map(this.signatures, function(signature) { - if (!signature) { - return undefined; - } - return signature.toObject(); - }); -}; - -MultiSigScriptHashInput.prototype.getScriptCode = function() { - var writer = new BufferWriter(); - if (!this.redeemScript.hasCodeseparators()) { - var redeemScriptBuffer = this.redeemScript.toBuffer(); - writer.writeVarintNum(redeemScriptBuffer.length); - writer.write(redeemScriptBuffer); - } else { - throw new Error('@TODO'); - } - return writer.toBuffer(); -}; - -MultiSigScriptHashInput.prototype.getSighash = function(transaction, privateKey, index, sigtype) { - var self = this; - var hash; - if (self.nestedWitness) { - var scriptCode = self.getScriptCode(); - var satoshisBuffer = self.getSatoshisBuffer(); - hash = SighashWitness.sighash(transaction, sigtype, index, scriptCode, satoshisBuffer); - } else { - hash = Sighash.sighash(transaction, sigtype, index, self.redeemScript); - } - return hash; -}; - -MultiSigScriptHashInput.prototype.getSignatures = function(transaction, privateKey, index, sigtype) { - $.checkState(this.output instanceof Output); - sigtype = sigtype || Signature.SIGHASH_ALL; - - var self = this; - var results = []; - _.each(this.publicKeys, function(publicKey) { - if (publicKey.toString() === privateKey.publicKey.toString()) { - var signature; - if (self.nestedWitness) { - var scriptCode = self.getScriptCode(); - var satoshisBuffer = self.getSatoshisBuffer(); - signature = SighashWitness.sign(transaction, privateKey, sigtype, index, scriptCode, satoshisBuffer); - } else { - signature = Sighash.sign(transaction, privateKey, sigtype, index, self.redeemScript); - } - results.push(new TransactionSignature({ - publicKey: privateKey.publicKey, - prevTxId: self.prevTxId, - outputIndex: self.outputIndex, - inputIndex: index, - signature: signature, - sigtype: sigtype - })); - } - }); - return results; -}; - -MultiSigScriptHashInput.prototype.addSignature = function(transaction, signature) { - $.checkState(!this.isFullySigned(), 'All needed signatures have already been added'); - $.checkArgument(!_.isUndefined(this.publicKeyIndex[signature.publicKey.toString()]), - 'Signature has no matching public key'); - $.checkState(this.isValidSignature(transaction, signature)); - this.signatures[this.publicKeyIndex[signature.publicKey.toString()]] = signature; - this._updateScript(); - return this; -}; - -MultiSigScriptHashInput.prototype._updateScript = function() { - if (this.nestedWitness) { - var stack = [ - new Buffer(0), - ]; - var signatures = this._createSignatures(); - for (var i = 0; i < signatures.length; i++) { - stack.push(signatures[i]); - } - stack.push(this.redeemScript.toBuffer()); - this.setWitnesses(stack); - } else { - var scriptSig = Script.buildP2SHMultisigIn( - this.publicKeys, - this.threshold, - this._createSignatures(), - { cachedMultisig: this.redeemScript } - ); - this.setScript(scriptSig); - } - return this; -}; - -MultiSigScriptHashInput.prototype._createSignatures = function() { - return _.map( - _.filter(this.signatures, function(signature) { return !_.isUndefined(signature); }), - function(signature) { - return BufferUtil.concat([ - signature.signature.toDER(), - BufferUtil.integerAsSingleByteBuffer(signature.sigtype) - ]); - } - ); -}; - -MultiSigScriptHashInput.prototype.clearSignatures = function() { - this.signatures = new Array(this.publicKeys.length); - this._updateScript(); -}; - -MultiSigScriptHashInput.prototype.isFullySigned = function() { - return this.countSignatures() === this.threshold; -}; - -MultiSigScriptHashInput.prototype.countMissingSignatures = function() { - return this.threshold - this.countSignatures(); -}; - -MultiSigScriptHashInput.prototype.countSignatures = function() { - return _.reduce(this.signatures, function(sum, signature) { - return sum + (!!signature); - }, 0); -}; - -MultiSigScriptHashInput.prototype.publicKeysWithoutSignature = function() { - var self = this; - return _.filter(this.publicKeys, function(publicKey) { - return !(self.signatures[self.publicKeyIndex[publicKey.toString()]]); - }); -}; - -MultiSigScriptHashInput.prototype.isValidSignature = function(transaction, signature) { - if (this.nestedWitness) { - signature.signature.nhashtype = signature.sigtype; - var scriptCode = this.getScriptCode(); - var satoshisBuffer = this.getSatoshisBuffer(); - return SighashWitness.verify( - transaction, - signature.signature, - signature.publicKey, - signature.inputIndex, - scriptCode, - satoshisBuffer - ); - } else { - // FIXME: Refactor signature so this is not necessary - signature.signature.nhashtype = signature.sigtype; - return Sighash.verify( - transaction, - signature.signature, - signature.publicKey, - signature.inputIndex, - this.redeemScript - ); - } -}; - -MultiSigScriptHashInput.OPCODES_SIZE = 7; // serialized size (<=3) + 0 .. N .. M OP_CHECKMULTISIG -MultiSigScriptHashInput.SIGNATURE_SIZE = 74; // size (1) + DER (<=72) + sighash (1) -MultiSigScriptHashInput.PUBKEY_SIZE = 34; // size (1) + DER (<=33) - -MultiSigScriptHashInput.prototype._estimateSize = function() { - return MultiSigScriptHashInput.OPCODES_SIZE + - this.threshold * MultiSigScriptHashInput.SIGNATURE_SIZE + - this.publicKeys.length * MultiSigScriptHashInput.PUBKEY_SIZE; -}; - -module.exports = MultiSigScriptHashInput; - -}).call(this,require("buffer").Buffer) -},{"../../crypto/signature":276,"../../encoding/bufferwriter":280,"../../script":290,"../../util/buffer":308,"../../util/preconditions":310,"../output":300,"../sighash":301,"../sighashwitness":302,"../signature":303,"./input":295,"buffer":146,"inherits":313,"lodash":311}],298:[function(require,module,exports){ -'use strict'; - -var inherits = require('inherits'); - -var $ = require('../../util/preconditions'); -var BufferUtil = require('../../util/buffer'); - -var Input = require('./input'); -var Output = require('../output'); -var Sighash = require('../sighash'); -var Script = require('../../script'); -var Signature = require('../../crypto/signature'); -var TransactionSignature = require('../signature'); - -/** - * Represents a special kind of input of PayToPublicKey kind. - * @constructor - */ -function PublicKeyInput() { - Input.apply(this, arguments); -} -inherits(PublicKeyInput, Input); - -/** - * @param {Transaction} transaction - the transaction to be signed - * @param {PrivateKey} privateKey - the private key with which to sign the transaction - * @param {number} index - the index of the input in the transaction input vector - * @param {number=} sigtype - the type of signature, defaults to Signature.SIGHASH_ALL - * @return {Array} of objects that can be - */ -PublicKeyInput.prototype.getSignatures = function(transaction, privateKey, index, sigtype) { - $.checkState(this.output instanceof Output); - sigtype = sigtype || Signature.SIGHASH_ALL; - var publicKey = privateKey.toPublicKey(); - if (publicKey.toString() === this.output.script.getPublicKey().toString('hex')) { - return [new TransactionSignature({ - publicKey: publicKey, - prevTxId: this.prevTxId, - outputIndex: this.outputIndex, - inputIndex: index, - signature: Sighash.sign(transaction, privateKey, sigtype, index, this.output.script), - sigtype: sigtype - })]; - } - return []; -}; - -/** - * Add the provided signature - * - * @param {Object} signature - * @param {PublicKey} signature.publicKey - * @param {Signature} signature.signature - * @param {number=} signature.sigtype - * @return {PublicKeyInput} this, for chaining - */ -PublicKeyInput.prototype.addSignature = function(transaction, signature) { - $.checkState(this.isValidSignature(transaction, signature), 'Signature is invalid'); - this.setScript(Script.buildPublicKeyIn( - signature.signature.toDER(), - signature.sigtype - )); - return this; -}; - -/** - * Clear the input's signature - * @return {PublicKeyHashInput} this, for chaining - */ -PublicKeyInput.prototype.clearSignatures = function() { - this.setScript(Script.empty()); - return this; -}; - -/** - * Query whether the input is signed - * @return {boolean} - */ -PublicKeyInput.prototype.isFullySigned = function() { - return this.script.isPublicKeyIn(); -}; - -PublicKeyInput.SCRIPT_MAX_SIZE = 73; // sigsize (1 + 72) - -PublicKeyInput.prototype._estimateSize = function() { - return PublicKeyInput.SCRIPT_MAX_SIZE; -}; - -module.exports = PublicKeyInput; - -},{"../../crypto/signature":276,"../../script":290,"../../util/buffer":308,"../../util/preconditions":310,"../output":300,"../sighash":301,"../signature":303,"./input":295,"inherits":313}],299:[function(require,module,exports){ -'use strict'; - -var inherits = require('inherits'); - -var $ = require('../../util/preconditions'); -var BufferUtil = require('../../util/buffer'); - -var Hash = require('../../crypto/hash'); -var Input = require('./input'); -var Output = require('../output'); -var Sighash = require('../sighash'); -var Script = require('../../script'); -var Signature = require('../../crypto/signature'); -var TransactionSignature = require('../signature'); - -/** - * Represents a special kind of input of PayToPublicKeyHash kind. - * @constructor - */ -function PublicKeyHashInput() { - Input.apply(this, arguments); -} -inherits(PublicKeyHashInput, Input); - -/* jshint maxparams: 5 */ -/** - * @param {Transaction} transaction - the transaction to be signed - * @param {PrivateKey} privateKey - the private key with which to sign the transaction - * @param {number} index - the index of the input in the transaction input vector - * @param {number=} sigtype - the type of signature, defaults to Signature.SIGHASH_ALL - * @param {Buffer=} hashData - the precalculated hash of the public key associated with the privateKey provided - * @return {Array} of objects that can be - */ -PublicKeyHashInput.prototype.getSignatures = function(transaction, privateKey, index, sigtype, hashData) { - $.checkState(this.output instanceof Output); - hashData = hashData || Hash.sha256ripemd160(privateKey.publicKey.toBuffer()); - sigtype = sigtype || Signature.SIGHASH_ALL; - - if (BufferUtil.equals(hashData, this.output.script.getPublicKeyHash())) { - return [new TransactionSignature({ - publicKey: privateKey.publicKey, - prevTxId: this.prevTxId, - outputIndex: this.outputIndex, - inputIndex: index, - signature: Sighash.sign(transaction, privateKey, sigtype, index, this.output.script), - sigtype: sigtype - })]; - } - return []; -}; -/* jshint maxparams: 3 */ - -/** - * Add the provided signature - * - * @param {Object} signature - * @param {PublicKey} signature.publicKey - * @param {Signature} signature.signature - * @param {number=} signature.sigtype - * @return {PublicKeyHashInput} this, for chaining - */ -PublicKeyHashInput.prototype.addSignature = function(transaction, signature) { - $.checkState(this.isValidSignature(transaction, signature), 'Signature is invalid'); - this.setScript(Script.buildPublicKeyHashIn( - signature.publicKey, - signature.signature.toDER(), - signature.sigtype - )); - return this; -}; - -/** - * Clear the input's signature - * @return {PublicKeyHashInput} this, for chaining - */ -PublicKeyHashInput.prototype.clearSignatures = function() { - this.setScript(Script.empty()); - return this; -}; - -/** - * Query whether the input is signed - * @return {boolean} - */ -PublicKeyHashInput.prototype.isFullySigned = function() { - return this.script.isPublicKeyHashIn(); -}; - -PublicKeyHashInput.SCRIPT_MAX_SIZE = 73 + 34; // sigsize (1 + 72) + pubkey (1 + 33) - -PublicKeyHashInput.prototype._estimateSize = function() { - return PublicKeyHashInput.SCRIPT_MAX_SIZE; -}; - -module.exports = PublicKeyHashInput; - -},{"../../crypto/hash":273,"../../crypto/signature":276,"../../script":290,"../../util/buffer":308,"../../util/preconditions":310,"../output":300,"../sighash":301,"../signature":303,"./input":295,"inherits":313}],300:[function(require,module,exports){ -'use strict'; - -var _ = require('lodash'); -var BN = require('../crypto/bn'); -var buffer = require('buffer'); -var bufferUtil = require('../util/buffer'); -var JSUtil = require('../util/js'); -var BufferWriter = require('../encoding/bufferwriter'); -var Script = require('../script'); -var $ = require('../util/preconditions'); -var errors = require('../errors'); - -var MAX_SAFE_INTEGER = 0x1fffffffffffff; - -function Output(args) { - if (!(this instanceof Output)) { - return new Output(args); - } - if (_.isObject(args)) { - this.satoshis = args.satoshis; - if (bufferUtil.isBuffer(args.script)) { - this._scriptBuffer = args.script; - } else { - var script; - if (_.isString(args.script) && JSUtil.isHexa(args.script)) { - script = new buffer.Buffer(args.script, 'hex'); - } else { - script = args.script; - } - this.setScript(script); - } - } else { - throw new TypeError('Unrecognized argument for Output'); - } -} - -Object.defineProperty(Output.prototype, 'script', { - configurable: false, - enumerable: true, - get: function() { - if (this._script) { - return this._script; - } else { - this.setScriptFromBuffer(this._scriptBuffer); - return this._script; - } - - } -}); - -Object.defineProperty(Output.prototype, 'satoshis', { - configurable: false, - enumerable: true, - get: function() { - return this._satoshis; - }, - set: function(num) { - if (num instanceof BN) { - this._satoshisBN = num; - this._satoshis = num.toNumber(); - } else if (_.isString(num)) { - this._satoshis = parseInt(num); - this._satoshisBN = BN.fromNumber(this._satoshis); - } else { - $.checkArgument( - JSUtil.isNaturalNumber(num), - 'Output satoshis is not a natural number' - ); - this._satoshisBN = BN.fromNumber(num); - this._satoshis = num; - } - $.checkState( - JSUtil.isNaturalNumber(this._satoshis), - 'Output satoshis is not a natural number' - ); - } -}); - -Output.prototype.invalidSatoshis = function() { - if (this._satoshis > MAX_SAFE_INTEGER) { - return 'transaction txout satoshis greater than max safe integer'; - } - if (this._satoshis !== this._satoshisBN.toNumber()) { - return 'transaction txout satoshis has corrupted value'; - } - if (this._satoshis < 0) { - return 'transaction txout negative'; - } - return false; -}; - -Output.prototype.toObject = Output.prototype.toJSON = function toObject() { - var obj = { - satoshis: this.satoshis - }; - obj.script = this._scriptBuffer.toString('hex'); - return obj; -}; - -Output.fromObject = function(data) { - return new Output(data); -}; - -Output.prototype.setScriptFromBuffer = function(buffer) { - this._scriptBuffer = buffer; - try { - this._script = Script.fromBuffer(this._scriptBuffer); - this._script._isOutput = true; - } catch(e) { - if (e instanceof errors.Script.InvalidBuffer) { - this._script = null; - } else { - throw e; - } - } -}; - -Output.prototype.setScript = function(script) { - if (script instanceof Script) { - this._scriptBuffer = script.toBuffer(); - this._script = script; - this._script._isOutput = true; - } else if (_.isString(script)) { - this._script = Script.fromString(script); - this._scriptBuffer = this._script.toBuffer(); - this._script._isOutput = true; - } else if (bufferUtil.isBuffer(script)) { - this.setScriptFromBuffer(script); - } else { - throw new TypeError('Invalid argument type: script'); - } - return this; -}; - -Output.prototype.inspect = function() { - var scriptStr; - if (this.script) { - scriptStr = this.script.inspect(); - } else { - scriptStr = this._scriptBuffer.toString('hex'); - } - return ''; -}; - -Output.fromBufferReader = function(br) { - var obj = {}; - obj.satoshis = br.readUInt64LEBN(); - var size = br.readVarintNum(); - if (size !== 0) { - obj.script = br.read(size); - } else { - obj.script = new buffer.Buffer([]); - } - return new Output(obj); -}; - -Output.prototype.toBufferWriter = function(writer) { - if (!writer) { - writer = new BufferWriter(); - } - writer.writeUInt64LEBN(this._satoshisBN); - var script = this._scriptBuffer; - writer.writeVarintNum(script.length); - writer.write(script); - return writer; -}; - -module.exports = Output; - -},{"../crypto/bn":271,"../encoding/bufferwriter":280,"../errors":282,"../script":290,"../util/buffer":308,"../util/js":309,"../util/preconditions":310,"buffer":146,"lodash":311}],301:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var buffer = require('buffer'); - -var Signature = require('../crypto/signature'); -var Script = require('../script'); -var Output = require('./output'); -var BufferReader = require('../encoding/bufferreader'); -var BufferWriter = require('../encoding/bufferwriter'); -var BN = require('../crypto/bn'); -var Hash = require('../crypto/hash'); -var ECDSA = require('../crypto/ecdsa'); -var $ = require('../util/preconditions'); -var _ = require('lodash'); - -var SIGHASH_SINGLE_BUG = '0000000000000000000000000000000000000000000000000000000000000001'; -var BITS_64_ON = 'ffffffffffffffff'; - -/** - * Returns a buffer of length 32 bytes with the hash that needs to be signed - * for OP_CHECKSIG. - * - * @name Signing.sighash - * @param {Transaction} transaction the transaction to sign - * @param {number} sighashType the type of the hash - * @param {number} inputNumber the input index for the signature - * @param {Script} subscript the script that will be signed - */ -var sighash = function sighash(transaction, sighashType, inputNumber, subscript) { - var Transaction = require('./transaction'); - var Input = require('./input'); - - var i; - // Copy transaction - var txcopy = Transaction.shallowCopy(transaction); - - // Copy script - subscript = new Script(subscript); - subscript.removeCodeseparators(); - - for (i = 0; i < txcopy.inputs.length; i++) { - // Blank signatures for other inputs - txcopy.inputs[i] = new Input(txcopy.inputs[i]).setScript(Script.empty()); - } - - txcopy.inputs[inputNumber] = new Input(txcopy.inputs[inputNumber]).setScript(subscript); - - if ((sighashType & 31) === Signature.SIGHASH_NONE || - (sighashType & 31) === Signature.SIGHASH_SINGLE) { - - // clear all sequenceNumbers - for (i = 0; i < txcopy.inputs.length; i++) { - if (i !== inputNumber) { - txcopy.inputs[i].sequenceNumber = 0; - } - } - } - - if ((sighashType & 31) === Signature.SIGHASH_NONE) { - txcopy.outputs = []; - - } else if ((sighashType & 31) === Signature.SIGHASH_SINGLE) { - // The SIGHASH_SINGLE bug. - // https://bitcointalk.org/index.php?topic=260595.0 - if (inputNumber >= txcopy.outputs.length) { - return Buffer.from(SIGHASH_SINGLE_BUG, 'hex'); - } - - txcopy.outputs.length = inputNumber + 1; - - for (i = 0; i < inputNumber; i++) { - txcopy.outputs[i] = new Output({ - satoshis: BN.fromBuffer(new buffer.Buffer(BITS_64_ON, 'hex')), - script: Script.empty() - }); - } - } - - if (sighashType & Signature.SIGHASH_ANYONECANPAY) { - txcopy.inputs = [txcopy.inputs[inputNumber]]; - } - - var buf = new BufferWriter() - .write(txcopy.toBuffer()) - .writeInt32LE(sighashType) - .toBuffer(); - var ret = Hash.sha256sha256(buf); - ret = new BufferReader(ret).readReverse(); - return ret; -}; - -/** - * Create a signature - * - * @name Signing.sign - * @param {Transaction} transaction - * @param {PrivateKey} privateKey - * @param {number} sighash - * @param {number} inputIndex - * @param {Script} subscript - * @return {Signature} - */ -function sign(transaction, privateKey, sighashType, inputIndex, subscript) { - var hashbuf = sighash(transaction, sighashType, inputIndex, subscript); - var sig = ECDSA.sign(hashbuf, privateKey, 'little').set({ - nhashtype: sighashType - }); - return sig; -} - -/** - * Verify a signature - * - * @name Signing.verify - * @param {Transaction} transaction - * @param {Signature} signature - * @param {PublicKey} publicKey - * @param {number} inputIndex - * @param {Script} subscript - * @return {boolean} - */ -function verify(transaction, signature, publicKey, inputIndex, subscript) { - $.checkArgument(!_.isUndefined(transaction)); - $.checkArgument(!_.isUndefined(signature) && !_.isUndefined(signature.nhashtype)); - var hashbuf = sighash(transaction, signature.nhashtype, inputIndex, subscript); - return ECDSA.verify(hashbuf, signature, publicKey, 'little'); -} - -/** - * @namespace Signing - */ -module.exports = { - sighash: sighash, - sign: sign, - verify: verify -}; - -}).call(this,require("buffer").Buffer) -},{"../crypto/bn":271,"../crypto/ecdsa":272,"../crypto/hash":273,"../crypto/signature":276,"../encoding/bufferreader":279,"../encoding/bufferwriter":280,"../script":290,"../util/preconditions":310,"./input":294,"./output":300,"./transaction":304,"buffer":146,"lodash":311}],302:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -/* jshint maxparams:5 */ - -var Signature = require('../crypto/signature'); -var Script = require('../script'); -var Output = require('./output'); -var BufferReader = require('../encoding/bufferreader'); -var BufferWriter = require('../encoding/bufferwriter'); -var BN = require('../crypto/bn'); -var Hash = require('../crypto/hash'); -var ECDSA = require('../crypto/ecdsa'); -var $ = require('../util/preconditions'); -var _ = require('lodash'); - -/** - * Returns a buffer of length 32 bytes with the hash that needs to be signed - * for witness programs as defined by: - * https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki - * - * @name Signing.sighash - * @param {Transaction} transaction the transaction to sign - * @param {number} sighashType the type of the hash - * @param {number} inputNumber the input index for the signature - * @param {Buffer} scriptCode - * @param {Buffer} satoshisBuffer - */ -var sighash = function sighash(transaction, sighashType, inputNumber, scriptCode, satoshisBuffer) { - /* jshint maxstatements: 50 */ - - var hashPrevouts; - var hashSequence; - var hashOutputs; - - if (!(sighashType & Signature.SIGHASH_ANYONECANPAY)) { - var buffers = []; - for (var n = 0; n < transaction.inputs.length; n++) { - var input = transaction.inputs[n]; - var prevTxIdBuffer = new BufferReader(input.prevTxId).readReverse(); - buffers.push(prevTxIdBuffer); - var outputIndexBuffer = new Buffer(new Array(4)); - outputIndexBuffer.writeUInt32LE(input.outputIndex, 0); - buffers.push(outputIndexBuffer); - } - hashPrevouts = Hash.sha256sha256(Buffer.concat(buffers)); - } - - if (!(sighashType & Signature.SIGHASH_ANYONECANPAY) && - (sighashType & 0x1f) !== Signature.SIGHASH_SINGLE && (sighashType & 0x1f) !== Signature.SIGHASH_NONE) { - - var sequenceBuffers = []; - for (var m = 0; m < transaction.inputs.length; m++) { - var sequenceBuffer = new Buffer(new Array(4)); - sequenceBuffer.writeUInt32LE(transaction.inputs[m].sequenceNumber, 0); - sequenceBuffers.push(sequenceBuffer); - } - hashSequence = Hash.sha256sha256(Buffer.concat(sequenceBuffers)); - } - - var outputWriter = new BufferWriter(); - if ((sighashType & 0x1f) !== Signature.SIGHASH_SINGLE && (sighashType & 0x1f) !== Signature.SIGHASH_NONE) { - for (var p = 0; p < transaction.outputs.length; p++) { - transaction.outputs[p].toBufferWriter(outputWriter); - } - hashOutputs = Hash.sha256sha256(outputWriter.toBuffer()); - } else if ((sighashType & 0x1f) === Signature.SIGHASH_SINGLE && inputNumber < transaction.outputs.length) { - transaction.outputs[inputNumber].toBufferWriter(outputWriter); - hashOutputs = Hash.sha256sha256(outputWriter.toBuffer()); - } - - // Version - var writer = new BufferWriter(); - writer.writeUInt32LE(transaction.version); - - // Input prevouts/nSequence (none/all, depending on flags) - writer.write(hashPrevouts); - writer.write(hashSequence); - - // The input being signed (replacing the scriptSig with scriptCode + amount) - // The prevout may already be contained in hashPrevout, and the nSequence - // may already be contain in hashSequence. - var outpointId = new BufferReader(transaction.inputs[inputNumber].prevTxId).readReverse(); - writer.write(outpointId); - writer.writeUInt32LE(transaction.inputs[inputNumber].outputIndex); - - writer.write(scriptCode); - - writer.write(satoshisBuffer); - - writer.writeUInt32LE(transaction.inputs[inputNumber].sequenceNumber); - - // Outputs (none/one/all, depending on flags) - writer.write(hashOutputs); - - // Locktime - writer.writeUInt32LE(transaction.nLockTime); - - // Sighash type - writer.writeInt32LE(sighashType); - - return Hash.sha256sha256(writer.toBuffer()); - -}; - -/** - * Create a signature - * - * @name Signing.sign - * @param {Transaction} transaction - * @param {PrivateKey} privateKey - * @param {number} sighash - * @param {number} inputIndex - * @param {Script} subscript - * @return {Signature} - */ -function sign(transaction, privateKey, sighashType, inputIndex, scriptCode, satoshisBuffer) { - var hashbuf = sighash(transaction, sighashType, inputIndex, scriptCode, satoshisBuffer); - var sig = ECDSA.sign(hashbuf, privateKey).set({ - nhashtype: sighashType - }); - return sig; -} - -/** - * Verify a signature - * - * @name Signing.verify - * @param {Transaction} transaction - * @param {Signature} signature - * @param {PublicKey} publicKey - * @param {number} inputIndex - * @param {Script} subscript - * @return {boolean} - */ -function verify(transaction, signature, publicKey, inputIndex, scriptCode, satoshisBuffer) { - $.checkArgument(!_.isUndefined(transaction)); - $.checkArgument(!_.isUndefined(signature) && !_.isUndefined(signature.nhashtype)); - var hashbuf = sighash(transaction, signature.nhashtype, inputIndex, scriptCode, satoshisBuffer); - return ECDSA.verify(hashbuf, signature, publicKey); -} - -/** - * @namespace Signing - */ -module.exports = { - sighash: sighash, - sign: sign, - verify: verify -}; - -}).call(this,require("buffer").Buffer) -},{"../crypto/bn":271,"../crypto/ecdsa":272,"../crypto/hash":273,"../crypto/signature":276,"../encoding/bufferreader":279,"../encoding/bufferwriter":280,"../script":290,"../util/preconditions":310,"./output":300,"buffer":146,"lodash":311}],303:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var _ = require('lodash'); -var $ = require('../util/preconditions'); -var inherits = require('inherits'); -var BufferUtil = require('../util/buffer'); -var JSUtil = require('../util/js'); - -var PublicKey = require('../publickey'); -var errors = require('../errors'); -var Signature = require('../crypto/signature'); - -/** - * @desc - * Wrapper around Signature with fields related to signing a transaction specifically - * - * @param {Object|string|TransactionSignature} arg - * @constructor - */ -function TransactionSignature(arg) { - if (!(this instanceof TransactionSignature)) { - return new TransactionSignature(arg); - } - if (arg instanceof TransactionSignature) { - return arg; - } - if (_.isObject(arg)) { - return this._fromObject(arg); - } - throw new errors.InvalidArgument('TransactionSignatures must be instantiated from an object'); -} -inherits(TransactionSignature, Signature); - -TransactionSignature.prototype._fromObject = function(arg) { - this._checkObjectArgs(arg); - this.publicKey = new PublicKey(arg.publicKey); - this.prevTxId = BufferUtil.isBuffer(arg.prevTxId) ? arg.prevTxId : Buffer.from(arg.prevTxId, 'hex'); - this.outputIndex = arg.outputIndex; - this.inputIndex = arg.inputIndex; - this.signature = (arg.signature instanceof Signature) ? arg.signature : - BufferUtil.isBuffer(arg.signature) ? Signature.fromBuffer(arg.signature) : - Signature.fromString(arg.signature); - this.sigtype = arg.sigtype; - return this; -}; - -TransactionSignature.prototype._checkObjectArgs = function(arg) { - $.checkArgument(PublicKey(arg.publicKey), 'publicKey'); - $.checkArgument(!_.isUndefined(arg.inputIndex), 'inputIndex'); - $.checkArgument(!_.isUndefined(arg.outputIndex), 'outputIndex'); - $.checkState(_.isNumber(arg.inputIndex), 'inputIndex must be a number'); - $.checkState(_.isNumber(arg.outputIndex), 'outputIndex must be a number'); - $.checkArgument(arg.signature, 'signature'); - $.checkArgument(arg.prevTxId, 'prevTxId'); - $.checkState(arg.signature instanceof Signature || - BufferUtil.isBuffer(arg.signature) || - JSUtil.isHexa(arg.signature), 'signature must be a buffer or hexa value'); - $.checkState(BufferUtil.isBuffer(arg.prevTxId) || - JSUtil.isHexa(arg.prevTxId), 'prevTxId must be a buffer or hexa value'); - $.checkArgument(arg.sigtype, 'sigtype'); - $.checkState(_.isNumber(arg.sigtype), 'sigtype must be a number'); -}; - -/** - * Serializes a transaction to a plain JS object - * @return {Object} - */ -TransactionSignature.prototype.toObject = TransactionSignature.prototype.toJSON = function toObject() { - return { - publicKey: this.publicKey.toString(), - prevTxId: this.prevTxId.toString('hex'), - outputIndex: this.outputIndex, - inputIndex: this.inputIndex, - signature: this.signature.toString(), - sigtype: this.sigtype - }; -}; - -/** - * Builds a TransactionSignature from an object - * @param {Object} object - * @return {TransactionSignature} - */ -TransactionSignature.fromObject = function(object) { - $.checkArgument(object); - return new TransactionSignature(object); -}; - -module.exports = TransactionSignature; - -}).call(this,require("buffer").Buffer) -},{"../crypto/signature":276,"../errors":282,"../publickey":289,"../util/buffer":308,"../util/js":309,"../util/preconditions":310,"buffer":146,"inherits":313,"lodash":311}],304:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var _ = require('lodash'); -var $ = require('../util/preconditions'); -var buffer = require('buffer'); -var compare = Buffer.compare || require('buffer-compare'); - -var errors = require('../errors'); -var BufferUtil = require('../util/buffer'); -var JSUtil = require('../util/js'); -var BufferReader = require('../encoding/bufferreader'); -var BufferWriter = require('../encoding/bufferwriter'); -var Hash = require('../crypto/hash'); -var Signature = require('../crypto/signature'); -var Sighash = require('./sighash'); -var SighashWitness = require('./sighashwitness'); - -var Address = require('../address'); -var UnspentOutput = require('./unspentoutput'); -var Input = require('./input'); -var PublicKeyHashInput = Input.PublicKeyHash; -var PublicKeyInput = Input.PublicKey; -var MultiSigScriptHashInput = Input.MultiSigScriptHash; -var MultiSigInput = Input.MultiSig; -var Output = require('./output'); -var Script = require('../script'); -var PrivateKey = require('../privatekey'); -var BN = require('../crypto/bn'); - -/** - * Represents a transaction, a set of inputs and outputs to change ownership of tokens - * - * @param {*} serialized - * @constructor - */ -function Transaction(serialized) { - if (!(this instanceof Transaction)) { - return new Transaction(serialized); - } - this.inputs = []; - this.outputs = []; - this._inputAmount = undefined; - this._outputAmount = undefined; - - if (serialized) { - if (serialized instanceof Transaction) { - return Transaction.shallowCopy(serialized); - } else if (JSUtil.isHexa(serialized)) { - this.fromString(serialized); - } else if (BufferUtil.isBuffer(serialized)) { - this.fromBuffer(serialized); - } else if (_.isObject(serialized)) { - this.fromObject(serialized); - } else { - throw new errors.InvalidArgument('Must provide an object or string to deserialize a transaction'); - } - } else { - this._newTransaction(); - } -} -var CURRENT_VERSION = 1; -var DEFAULT_NLOCKTIME = 0; -var MAX_BLOCK_SIZE = 1000000; - -// Minimum amount for an output for it not to be considered a dust output -Transaction.DUST_AMOUNT = 546; - -// Margin of error to allow fees in the vecinity of the expected value but doesn't allow a big difference -Transaction.FEE_SECURITY_MARGIN = 150; - -// max amount of satoshis in circulation -Transaction.MAX_MONEY = 21000000 * 1e8; - -// nlocktime limit to be considered block height rather than a timestamp -Transaction.NLOCKTIME_BLOCKHEIGHT_LIMIT = 5e8; - -// Max value for an unsigned 32 bit value -Transaction.NLOCKTIME_MAX_VALUE = 4294967295; - -// Value used for fee estimation (satoshis per kilobyte) -Transaction.FEE_PER_KB = 100000; - -// Safe upper bound for change address script size in bytes -Transaction.CHANGE_OUTPUT_MAX_SIZE = 20 + 4 + 34 + 4; -Transaction.MAXIMUM_EXTRA_SIZE = 4 + 9 + 9 + 4; - -/* Constructors and Serialization */ - -/** - * Create a 'shallow' copy of the transaction, by serializing and deserializing - * it dropping any additional information that inputs and outputs may have hold - * - * @param {Transaction} transaction - * @return {Transaction} - */ -Transaction.shallowCopy = function(transaction) { - var copy = new Transaction(transaction.toBuffer()); - return copy; -}; - -var hashProperty = { - configurable: false, - enumerable: true, - get: function() { - this._hash = new BufferReader(this._getHash()).readReverse().toString('hex'); - return this._hash; - } -}; - -var witnessHashProperty = { - configurable: false, - enumerable: true, - get: function() { - return new BufferReader(this._getWitnessHash()).readReverse().toString('hex'); - } -}; - -Object.defineProperty(Transaction.prototype, 'witnessHash', witnessHashProperty); -Object.defineProperty(Transaction.prototype, 'hash', hashProperty); -Object.defineProperty(Transaction.prototype, 'id', hashProperty); - -var ioProperty = { - configurable: false, - enumerable: true, - get: function() { - return this._getInputAmount(); - } -}; -Object.defineProperty(Transaction.prototype, 'inputAmount', ioProperty); -ioProperty.get = function() { - return this._getOutputAmount(); -}; -Object.defineProperty(Transaction.prototype, 'outputAmount', ioProperty); - -/** - * Retrieve the little endian hash of the transaction (used for serialization) - * @return {Buffer} - */ -Transaction.prototype._getHash = function() { - return Hash.sha256sha256(this.toBuffer(true)); -}; - -/** - * Retrieve the little endian hash of the transaction including witness data - * @return {Buffer} - */ -Transaction.prototype._getWitnessHash = function() { - return Hash.sha256sha256(this.toBuffer(false)); -}; - -/** - * Retrieve a hexa string that can be used with bitcoind's CLI interface - * (decoderawtransaction, sendrawtransaction) - * - * @param {Object|boolean=} unsafe if true, skip all tests. if it's an object, - * it's expected to contain a set of flags to skip certain tests: - * * `disableAll`: disable all checks - * * `disableSmallFees`: disable checking for fees that are too small - * * `disableLargeFees`: disable checking for fees that are too large - * * `disableIsFullySigned`: disable checking if all inputs are fully signed - * * `disableDustOutputs`: disable checking if there are no outputs that are dust amounts - * * `disableMoreOutputThanInput`: disable checking if the transaction spends more bitcoins than the sum of the input amounts - * @return {string} - */ -Transaction.prototype.serialize = function(unsafe) { - if (true === unsafe || unsafe && unsafe.disableAll) { - return this.uncheckedSerialize(); - } else { - return this.checkedSerialize(unsafe); - } -}; - -Transaction.prototype.uncheckedSerialize = Transaction.prototype.toString = function() { - return this.toBuffer().toString('hex'); -}; - -/** - * Retrieve a hexa string that can be used with bitcoind's CLI interface - * (decoderawtransaction, sendrawtransaction) - * - * @param {Object} opts allows to skip certain tests. {@see Transaction#serialize} - * @return {string} - */ -Transaction.prototype.checkedSerialize = function(opts) { - var serializationError = this.getSerializationError(opts); - if (serializationError) { - serializationError.message += ' - For more information please see: ' + - 'https://bitcore.io/api/lib/transaction#serialization-checks'; - throw serializationError; - } - return this.uncheckedSerialize(); -}; - -Transaction.prototype.invalidSatoshis = function() { - var invalid = false; - for (var i = 0; i < this.outputs.length; i++) { - if (this.outputs[i].invalidSatoshis()) { - invalid = true; - } - } - return invalid; -}; - -/** - * Retrieve a possible error that could appear when trying to serialize and - * broadcast this transaction. - * - * @param {Object} opts allows to skip certain tests. {@see Transaction#serialize} - * @return {bitcore.Error} - */ -Transaction.prototype.getSerializationError = function(opts) { - opts = opts || {}; - - if (this.invalidSatoshis()) { - return new errors.Transaction.InvalidSatoshis(); - } - - var unspent = this._getUnspentValue(); - var unspentError; - if (unspent < 0) { - if (!opts.disableMoreOutputThanInput) { - unspentError = new errors.Transaction.InvalidOutputAmountSum(); - } - } else { - unspentError = this._hasFeeError(opts, unspent); - } - - return unspentError || - this._hasDustOutputs(opts) || - this._isMissingSignatures(opts); -}; - -Transaction.prototype._hasFeeError = function(opts, unspent) { - - if (!_.isUndefined(this._fee) && this._fee !== unspent) { - return new errors.Transaction.FeeError.Different( - 'Unspent value is ' + unspent + ' but specified fee is ' + this._fee - ); - } - - if (!opts.disableLargeFees) { - var maximumFee = Math.floor(Transaction.FEE_SECURITY_MARGIN * this._estimateFee()); - if (unspent > maximumFee) { - if (this._missingChange()) { - return new errors.Transaction.ChangeAddressMissing( - 'Fee is too large and no change address was provided' - ); - } - return new errors.Transaction.FeeError.TooLarge( - 'expected less than ' + maximumFee + ' but got ' + unspent - ); - } - } - - if (!opts.disableSmallFees) { - var minimumFee = Math.ceil(this._estimateFee() / Transaction.FEE_SECURITY_MARGIN); - if (unspent < minimumFee) { - return new errors.Transaction.FeeError.TooSmall( - 'expected more than ' + minimumFee + ' but got ' + unspent - ); - } - } -}; - -Transaction.prototype._missingChange = function() { - return !this._changeScript; -}; - -Transaction.prototype._hasDustOutputs = function(opts) { - if (opts.disableDustOutputs) { - return; - } - var index, output; - for (index in this.outputs) { - output = this.outputs[index]; - if (output.satoshis < Transaction.DUST_AMOUNT && !output.script.isDataOut()) { - return new errors.Transaction.DustOutputs(); - } - } -}; - -Transaction.prototype._isMissingSignatures = function(opts) { - if (opts.disableIsFullySigned) { - return; - } - if (!this.isFullySigned()) { - return new errors.Transaction.MissingSignatures(); - } -}; - -Transaction.prototype.inspect = function() { - return ''; -}; - -Transaction.prototype.toBuffer = function(noWitness) { - var writer = new BufferWriter(); - return this.toBufferWriter(writer, noWitness).toBuffer(); -}; - -Transaction.prototype.hasWitnesses = function() { - for (var i = 0; i < this.inputs.length; i++) { - if (this.inputs[i].hasWitnesses()) { - return true; - } - } - return false; -}; - -Transaction.prototype.toBufferWriter = function(writer, noWitness) { - writer.writeInt32LE(this.version); - - var hasWitnesses = this.hasWitnesses(); - - if (hasWitnesses && !noWitness) { - writer.write(new Buffer('0001', 'hex')); - } - - writer.writeVarintNum(this.inputs.length); - - _.each(this.inputs, function(input) { - input.toBufferWriter(writer); - }); - - writer.writeVarintNum(this.outputs.length); - _.each(this.outputs, function(output) { - output.toBufferWriter(writer); - }); - - if (hasWitnesses && !noWitness) { - _.each(this.inputs, function(input) { - var witnesses = input.getWitnesses(); - writer.writeVarintNum(witnesses.length); - for (var j = 0; j < witnesses.length; j++) { - writer.writeVarintNum(witnesses[j].length); - writer.write(witnesses[j]); - } - }); - } - - writer.writeUInt32LE(this.nLockTime); - return writer; -}; - -Transaction.prototype.fromBuffer = function(buffer) { - var reader = new BufferReader(buffer); - return this.fromBufferReader(reader); -}; - -Transaction.prototype.fromBufferReader = function(reader) { - $.checkArgument(!reader.finished(), 'No transaction data received'); - - this.version = reader.readInt32LE(); - var sizeTxIns = reader.readVarintNum(); - - // check for segwit - var hasWitnesses = false; - if (sizeTxIns === 0 && reader.buf[reader.pos] !== 0) { - reader.pos += 1; - hasWitnesses = true; - sizeTxIns = reader.readVarintNum(); - } - - for (var i = 0; i < sizeTxIns; i++) { - var input = Input.fromBufferReader(reader); - this.inputs.push(input); - } - - var sizeTxOuts = reader.readVarintNum(); - for (var j = 0; j < sizeTxOuts; j++) { - this.outputs.push(Output.fromBufferReader(reader)); - } - - if (hasWitnesses) { - for (var k = 0; k < sizeTxIns; k++) { - var itemCount = reader.readVarintNum(); - var witnesses = []; - for (var l = 0; l < itemCount; l++) { - var size = reader.readVarintNum(); - var item = reader.read(size); - witnesses.push(item); - } - this.inputs[k].setWitnesses(witnesses); - } - } - - this.nLockTime = reader.readUInt32LE(); - return this; -}; - - -Transaction.prototype.toObject = Transaction.prototype.toJSON = function toObject() { - var inputs = []; - this.inputs.forEach(function(input) { - inputs.push(input.toObject()); - }); - var outputs = []; - this.outputs.forEach(function(output) { - outputs.push(output.toObject()); - }); - var obj = { - hash: this.hash, - version: this.version, - inputs: inputs, - outputs: outputs, - nLockTime: this.nLockTime - }; - if (this._changeScript) { - obj.changeScript = this._changeScript.toString(); - } - if (!_.isUndefined(this._changeIndex)) { - obj.changeIndex = this._changeIndex; - } - if (!_.isUndefined(this._fee)) { - obj.fee = this._fee; - } - return obj; -}; - -Transaction.prototype.fromObject = function fromObject(arg) { - /* jshint maxstatements: 20 */ - $.checkArgument(_.isObject(arg) || arg instanceof Transaction); - var self = this; - var transaction; - if (arg instanceof Transaction) { - transaction = transaction.toObject(); - } else { - transaction = arg; - } - _.each(transaction.inputs, function(input) { - if (!input.output || !input.output.script) { - self.uncheckedAddInput(new Input(input)); - return; - } - var script = new Script(input.output.script); - var txin; - if (script.isPublicKeyHashOut()) { - txin = new Input.PublicKeyHash(input); - } else if (script.isScriptHashOut() && input.publicKeys && input.threshold) { - txin = new Input.MultiSigScriptHash( - input, input.publicKeys, input.threshold, input.signatures - ); - } else if (script.isPublicKeyOut()) { - txin = new Input.PublicKey(input); - } else { - throw new errors.Transaction.Input.UnsupportedScript(input.output.script); - } - self.addInput(txin); - }); - _.each(transaction.outputs, function(output) { - self.addOutput(new Output(output)); - }); - if (transaction.changeIndex) { - this._changeIndex = transaction.changeIndex; - } - if (transaction.changeScript) { - this._changeScript = new Script(transaction.changeScript); - } - if (transaction.fee) { - this._fee = transaction.fee; - } - this.nLockTime = transaction.nLockTime; - this.version = transaction.version; - this._checkConsistency(arg); - return this; -}; - -Transaction.prototype._checkConsistency = function(arg) { - if (!_.isUndefined(this._changeIndex)) { - $.checkState(this._changeScript, 'Change script is expected.'); - $.checkState(this.outputs[this._changeIndex], 'Change index points to undefined output.'); - $.checkState(this.outputs[this._changeIndex].script.toString() === - this._changeScript.toString(), 'Change output has an unexpected script.'); - } - if (arg && arg.hash) { - $.checkState(arg.hash === this.hash, 'Hash in object does not match transaction hash.'); - } -}; - -/** - * Sets nLockTime so that transaction is not valid until the desired date(a - * timestamp in seconds since UNIX epoch is also accepted) - * - * @param {Date | Number} time - * @return {Transaction} this - */ -Transaction.prototype.lockUntilDate = function(time) { - $.checkArgument(time); - if (_.isNumber(time) && time < Transaction.NLOCKTIME_BLOCKHEIGHT_LIMIT) { - throw new errors.Transaction.LockTimeTooEarly(); - } - if (_.isDate(time)) { - time = time.getTime() / 1000; - } - - for (var i = 0; i < this.inputs.length; i++) { - if (this.inputs[i].sequenceNumber === Input.DEFAULT_SEQNUMBER){ - this.inputs[i].sequenceNumber = Input.DEFAULT_LOCKTIME_SEQNUMBER; - } - } - - this.nLockTime = time; - return this; -}; - -/** - * Sets nLockTime so that transaction is not valid until the desired block - * height. - * - * @param {Number} height - * @return {Transaction} this - */ -Transaction.prototype.lockUntilBlockHeight = function(height) { - $.checkArgument(_.isNumber(height)); - if (height >= Transaction.NLOCKTIME_BLOCKHEIGHT_LIMIT) { - throw new errors.Transaction.BlockHeightTooHigh(); - } - if (height < 0) { - throw new errors.Transaction.NLockTimeOutOfRange(); - } - - for (var i = 0; i < this.inputs.length; i++) { - if (this.inputs[i].sequenceNumber === Input.DEFAULT_SEQNUMBER){ - this.inputs[i].sequenceNumber = Input.DEFAULT_LOCKTIME_SEQNUMBER; - } - } - - - this.nLockTime = height; - return this; -}; - -/** - * Returns a semantic version of the transaction's nLockTime. - * @return {Number|Date} - * If nLockTime is 0, it returns null, - * if it is < 500000000, it returns a block height (number) - * else it returns a Date object. - */ -Transaction.prototype.getLockTime = function() { - if (!this.nLockTime) { - return null; - } - if (this.nLockTime < Transaction.NLOCKTIME_BLOCKHEIGHT_LIMIT) { - return this.nLockTime; - } - return new Date(1000 * this.nLockTime); -}; - -Transaction.prototype.fromString = function(string) { - this.fromBuffer(buffer.Buffer.from(string, 'hex')); -}; - -Transaction.prototype._newTransaction = function() { - this.version = CURRENT_VERSION; - this.nLockTime = DEFAULT_NLOCKTIME; -}; - -/* Transaction creation interface */ - -/** - * @typedef {Object} Transaction~fromObject - * @property {string} prevTxId - * @property {number} outputIndex - * @property {(Buffer|string|Script)} script - * @property {number} satoshis - */ - -/** - * Add an input to this transaction. This is a high level interface - * to add an input, for more control, use @{link Transaction#addInput}. - * - * Can receive, as output information, the output of bitcoind's `listunspent` command, - * and a slightly fancier format recognized by bitcore: - * - * ``` - * { - * address: 'mszYqVnqKoQx4jcTdJXxwKAissE3Jbrrc1', - * txId: 'a477af6b2667c29670467e4e0728b685ee07b240235771862318e29ddbe58458', - * outputIndex: 0, - * script: Script.empty(), - * satoshis: 1020000 - * } - * ``` - * Where `address` can be either a string or a bitcore Address object. The - * same is true for `script`, which can be a string or a bitcore Script. - * - * Beware that this resets all the signatures for inputs (in further versions, - * SIGHASH_SINGLE or SIGHASH_NONE signatures will not be reset). - * - * @example - * ```javascript - * var transaction = new Transaction(); - * - * // From a pay to public key hash output from bitcoind's listunspent - * transaction.from({'txid': '0000...', vout: 0, amount: 0.1, scriptPubKey: 'OP_DUP ...'}); - * - * // From a pay to public key hash output - * transaction.from({'txId': '0000...', outputIndex: 0, satoshis: 1000, script: 'OP_DUP ...'}); - * - * // From a multisig P2SH output - * transaction.from({'txId': '0000...', inputIndex: 0, satoshis: 1000, script: '... OP_HASH'}, - * ['03000...', '02000...'], 2); - * ``` - * - * @param {(Array.|Transaction~fromObject)} utxo - * @param {Array=} pubkeys - * @param {number=} threshold - * @param {boolean=} nestedWitness - Indicates that the utxo is nested witness p2sh - * @param {Object=} opts - Several options: - * - noSorting: defaults to false, if true and is multisig, don't - * sort the given public keys before creating the script - */ -Transaction.prototype.from = function(utxo, pubkeys, threshold, nestedWitness, opts) { - if (_.isArray(utxo)) { - var self = this; - _.each(utxo, function(utxo) { - self.from(utxo, pubkeys, threshold); - }); - return this; - } - var exists = _.some(this.inputs, function(input) { - // TODO: Maybe prevTxId should be a string? Or defined as read only property? - return input.prevTxId.toString('hex') === utxo.txId && input.outputIndex === utxo.outputIndex; - }); - if (exists) { - return this; - } - if (pubkeys && threshold) { - this._fromMultisigUtxo(utxo, pubkeys, threshold, nestedWitness, opts); - } else { - this._fromNonP2SH(utxo); - } - return this; -}; - -Transaction.prototype._fromNonP2SH = function(utxo) { - var clazz; - utxo = new UnspentOutput(utxo); - if (utxo.script.isPublicKeyHashOut()) { - clazz = PublicKeyHashInput; - } else if (utxo.script.isPublicKeyOut()) { - clazz = PublicKeyInput; - } else { - clazz = Input; - } - this.addInput(new clazz({ - output: new Output({ - script: utxo.script, - satoshis: utxo.satoshis - }), - prevTxId: utxo.txId, - outputIndex: utxo.outputIndex, - script: Script.empty() - })); -}; - -Transaction.prototype._fromMultisigUtxo = function(utxo, pubkeys, threshold, nestedWitness, opts) { - $.checkArgument(threshold <= pubkeys.length, - 'Number of required signatures must be greater than the number of public keys'); - var clazz; - utxo = new UnspentOutput(utxo); - if (utxo.script.isMultisigOut()) { - clazz = MultiSigInput; - } else if (utxo.script.isScriptHashOut()) { - clazz = MultiSigScriptHashInput; - } else { - throw new Error("@TODO"); - } - this.addInput(new clazz({ - output: new Output({ - script: utxo.script, - satoshis: utxo.satoshis - }), - prevTxId: utxo.txId, - outputIndex: utxo.outputIndex, - script: Script.empty() - }, pubkeys, threshold, false, nestedWitness, opts)); -}; - -/** - * Add an input to this transaction. The input must be an instance of the `Input` class. - * It should have information about the Output that it's spending, but if it's not already - * set, two additional parameters, `outputScript` and `satoshis` can be provided. - * - * @param {Input} input - * @param {String|Script} outputScript - * @param {number} satoshis - * @return Transaction this, for chaining - */ -Transaction.prototype.addInput = function(input, outputScript, satoshis) { - $.checkArgumentType(input, Input, 'input'); - if (!input.output && (_.isUndefined(outputScript) || _.isUndefined(satoshis))) { - throw new errors.Transaction.NeedMoreInfo('Need information about the UTXO script and satoshis'); - } - if (!input.output && outputScript && !_.isUndefined(satoshis)) { - outputScript = outputScript instanceof Script ? outputScript : new Script(outputScript); - $.checkArgumentType(satoshis, 'number', 'satoshis'); - input.output = new Output({ - script: outputScript, - satoshis: satoshis - }); - } - return this.uncheckedAddInput(input); -}; - -/** - * Add an input to this transaction, without checking that the input has information about - * the output that it's spending. - * - * @param {Input} input - * @return Transaction this, for chaining - */ -Transaction.prototype.uncheckedAddInput = function(input) { - $.checkArgumentType(input, Input, 'input'); - this.inputs.push(input); - this._inputAmount = undefined; - this._updateChangeOutput(); - return this; -}; - -/** - * Returns true if the transaction has enough info on all inputs to be correctly validated - * - * @return {boolean} - */ -Transaction.prototype.hasAllUtxoInfo = function() { - return _.every(this.inputs.map(function(input) { - return !!input.output; - })); -}; - -/** - * Manually set the fee for this transaction. Beware that this resets all the signatures - * for inputs (in further versions, SIGHASH_SINGLE or SIGHASH_NONE signatures will not - * be reset). - * - * @param {number} amount satoshis to be sent - * @return {Transaction} this, for chaining - */ -Transaction.prototype.fee = function(amount) { - $.checkArgument(_.isNumber(amount), 'amount must be a number'); - this._fee = amount; - this._updateChangeOutput(); - return this; -}; - -/** - * Manually set the fee per KB for this transaction. Beware that this resets all the signatures - * for inputs (in further versions, SIGHASH_SINGLE or SIGHASH_NONE signatures will not - * be reset). - * - * @param {number} amount satoshis per KB to be sent - * @return {Transaction} this, for chaining - */ -Transaction.prototype.feePerKb = function(amount) { - $.checkArgument(_.isNumber(amount), 'amount must be a number'); - this._feePerKb = amount; - this._updateChangeOutput(); - return this; -}; - -/* Output management */ - -/** - * Set the change address for this transaction - * - * Beware that this resets all the signatures for inputs (in further versions, - * SIGHASH_SINGLE or SIGHASH_NONE signatures will not be reset). - * - * @param {Address} address An address for change to be sent to. - * @return {Transaction} this, for chaining - */ -Transaction.prototype.change = function(address) { - $.checkArgument(address, 'address is required'); - this._changeScript = Script.fromAddress(address); - this._updateChangeOutput(); - return this; -}; - - -/** - * @return {Output} change output, if it exists - */ -Transaction.prototype.getChangeOutput = function() { - if (!_.isUndefined(this._changeIndex)) { - return this.outputs[this._changeIndex]; - } - return null; -}; - -/** - * @typedef {Object} Transaction~toObject - * @property {(string|Address)} address - * @property {number} satoshis - */ - -/** - * Add an output to the transaction. - * - * Beware that this resets all the signatures for inputs (in further versions, - * SIGHASH_SINGLE or SIGHASH_NONE signatures will not be reset). - * - * @param {(string|Address|Array.)} address - * @param {number} amount in satoshis - * @return {Transaction} this, for chaining - */ -Transaction.prototype.to = function(address, amount) { - if (_.isArray(address)) { - var self = this; - _.each(address, function(to) { - self.to(to.address, to.satoshis); - }); - return this; - } - - $.checkArgument( - JSUtil.isNaturalNumber(amount), - 'Amount is expected to be a positive integer' - ); - this.addOutput(new Output({ - script: Script(new Address(address)), - satoshis: amount - })); - return this; -}; - -/** - * Add an OP_RETURN output to the transaction. - * - * Beware that this resets all the signatures for inputs (in further versions, - * SIGHASH_SINGLE or SIGHASH_NONE signatures will not be reset). - * - * @param {Buffer|string} value the data to be stored in the OP_RETURN output. - * In case of a string, the UTF-8 representation will be stored - * @return {Transaction} this, for chaining - */ -Transaction.prototype.addData = function(value) { - this.addOutput(new Output({ - script: Script.buildDataOut(value), - satoshis: 0 - })); - return this; -}; - - -/** - * Add an output to the transaction. - * - * @param {Output} output the output to add. - * @return {Transaction} this, for chaining - */ -Transaction.prototype.addOutput = function(output) { - $.checkArgumentType(output, Output, 'output'); - this._addOutput(output); - this._updateChangeOutput(); - return this; -}; - - -/** - * Remove all outputs from the transaction. - * - * @return {Transaction} this, for chaining - */ -Transaction.prototype.clearOutputs = function() { - this.outputs = []; - this._clearSignatures(); - this._outputAmount = undefined; - this._changeIndex = undefined; - this._updateChangeOutput(); - return this; -}; - - -Transaction.prototype._addOutput = function(output) { - this.outputs.push(output); - this._outputAmount = undefined; -}; - - -/** - * Calculates or gets the total output amount in satoshis - * - * @return {Number} the transaction total output amount - */ -Transaction.prototype._getOutputAmount = function() { - if (_.isUndefined(this._outputAmount)) { - var self = this; - this._outputAmount = 0; - _.each(this.outputs, function(output) { - self._outputAmount += output.satoshis; - }); - } - return this._outputAmount; -}; - - -/** - * Calculates or gets the total input amount in satoshis - * - * @return {Number} the transaction total input amount - */ -Transaction.prototype._getInputAmount = function() { - if (_.isUndefined(this._inputAmount)) { - this._inputAmount = _.sumBy(this.inputs, function(input) { - if (_.isUndefined(input.output)) { - throw new errors.Transaction.Input.MissingPreviousOutput(); - } - return input.output.satoshis; - }); - } - return this._inputAmount; -}; - -Transaction.prototype._updateChangeOutput = function() { - if (!this._changeScript) { - return; - } - this._clearSignatures(); - if (!_.isUndefined(this._changeIndex)) { - this._removeOutput(this._changeIndex); - } - var available = this._getUnspentValue(); - var fee = this.getFee(); - var changeAmount = available - fee; - if (changeAmount > 0) { - this._changeIndex = this.outputs.length; - this._addOutput(new Output({ - script: this._changeScript, - satoshis: changeAmount - })); - } else { - this._changeIndex = undefined; - } -}; -/** - * Calculates the fee of the transaction. - * - * If there's a fixed fee set, return that. - * - * If there is no change output set, the fee is the - * total value of the outputs minus inputs. Note that - * a serialized transaction only specifies the value - * of its outputs. (The value of inputs are recorded - * in the previous transaction outputs being spent.) - * This method therefore raises a "MissingPreviousOutput" - * error when called on a serialized transaction. - * - * If there's no fee set and no change address, - * estimate the fee based on size. - * - * @return {Number} fee of this transaction in satoshis - */ -Transaction.prototype.getFee = function() { - if (this.isCoinbase()) { - return 0; - } - if (!_.isUndefined(this._fee)) { - return this._fee; - } - // if no change output is set, fees should equal all the unspent amount - if (!this._changeScript) { - return this._getUnspentValue(); - } - return this._estimateFee(); -}; - -/** - * Estimates fee from serialized transaction size in bytes. - */ -Transaction.prototype._estimateFee = function() { - var estimatedSize = this._estimateSize(); - var available = this._getUnspentValue(); - return Transaction._estimateFee(estimatedSize, available, this._feePerKb); -}; - -Transaction.prototype._getUnspentValue = function() { - return this._getInputAmount() - this._getOutputAmount(); -}; - -Transaction.prototype._clearSignatures = function() { - _.each(this.inputs, function(input) { - input.clearSignatures(); - }); -}; - -Transaction._estimateFee = function(size, amountAvailable, feePerKb) { - var fee = Math.ceil(size / 1000) * (feePerKb || Transaction.FEE_PER_KB); - if (amountAvailable > fee) { - size += Transaction.CHANGE_OUTPUT_MAX_SIZE; - } - return Math.ceil(size / 1000) * (feePerKb || Transaction.FEE_PER_KB); -}; - -Transaction.prototype._estimateSize = function() { - var result = Transaction.MAXIMUM_EXTRA_SIZE; - _.each(this.inputs, function(input) { - result += input._estimateSize(); - }); - _.each(this.outputs, function(output) { - result += output.script.toBuffer().length + 9; - }); - return result; -}; - -Transaction.prototype._removeOutput = function(index) { - var output = this.outputs[index]; - this.outputs = _.without(this.outputs, output); - this._outputAmount = undefined; -}; - -Transaction.prototype.removeOutput = function(index) { - this._removeOutput(index); - this._updateChangeOutput(); -}; - -/** - * Sort a transaction's inputs and outputs according to BIP69 - * - * @see {https://github.com/bitcoin/bips/blob/master/bip-0069.mediawiki} - * @return {Transaction} this - */ -Transaction.prototype.sort = function() { - this.sortInputs(function(inputs) { - var copy = Array.prototype.concat.apply([], inputs); - copy.sort(function(first, second) { - return compare(first.prevTxId, second.prevTxId) - || first.outputIndex - second.outputIndex; - }); - return copy; - }); - this.sortOutputs(function(outputs) { - var copy = Array.prototype.concat.apply([], outputs); - copy.sort(function(first, second) { - return first.satoshis - second.satoshis - || compare(first.script.toBuffer(), second.script.toBuffer()); - }); - return copy; - }); - return this; -}; - -/** - * Randomize this transaction's outputs ordering. The shuffling algorithm is a - * version of the Fisher-Yates shuffle, provided by lodash's _.shuffle(). - * - * @return {Transaction} this - */ -Transaction.prototype.shuffleOutputs = function() { - return this.sortOutputs(_.shuffle); -}; - -/** - * Sort this transaction's outputs, according to a given sorting function that - * takes an array as argument and returns a new array, with the same elements - * but with a different order. The argument function MUST NOT modify the order - * of the original array - * - * @param {Function} sortingFunction - * @return {Transaction} this - */ -Transaction.prototype.sortOutputs = function(sortingFunction) { - var outs = sortingFunction(this.outputs); - return this._newOutputOrder(outs); -}; - -/** - * Sort this transaction's inputs, according to a given sorting function that - * takes an array as argument and returns a new array, with the same elements - * but with a different order. - * - * @param {Function} sortingFunction - * @return {Transaction} this - */ -Transaction.prototype.sortInputs = function(sortingFunction) { - this.inputs = sortingFunction(this.inputs); - this._clearSignatures(); - return this; -}; - -Transaction.prototype._newOutputOrder = function(newOutputs) { - var isInvalidSorting = (this.outputs.length !== newOutputs.length || - _.difference(this.outputs, newOutputs).length !== 0); - if (isInvalidSorting) { - throw new errors.Transaction.InvalidSorting(); - } - - if (!_.isUndefined(this._changeIndex)) { - var changeOutput = this.outputs[this._changeIndex]; - this._changeIndex = _.findIndex(newOutputs, changeOutput); - } - - this.outputs = newOutputs; - return this; -}; - -Transaction.prototype.removeInput = function(txId, outputIndex) { - var index; - if (!outputIndex && _.isNumber(txId)) { - index = txId; - } else { - index = _.findIndex(this.inputs, function(input) { - return input.prevTxId.toString('hex') === txId && input.outputIndex === outputIndex; - }); - } - if (index < 0 || index >= this.inputs.length) { - throw new errors.Transaction.InvalidIndex(index, this.inputs.length); - } - var input = this.inputs[index]; - this.inputs = _.without(this.inputs, input); - this._inputAmount = undefined; - this._updateChangeOutput(); -}; - -/* Signature handling */ - -/** - * Sign the transaction using one or more private keys. - * - * It tries to sign each input, verifying that the signature will be valid - * (matches a public key). - * - * @param {Array|String|PrivateKey} privateKey - * @param {number} sigtype - * @return {Transaction} this, for chaining - */ -Transaction.prototype.sign = function(privateKey, sigtype) { - $.checkState(this.hasAllUtxoInfo(), 'Not all utxo information is available to sign the transaction.'); - var self = this; - if (_.isArray(privateKey)) { - _.each(privateKey, function(privateKey) { - self.sign(privateKey, sigtype); - }); - return this; - } - _.each(this.getSignatures(privateKey, sigtype), function(signature) { - self.applySignature(signature); - }); - return this; -}; - -Transaction.prototype.getSignatures = function(privKey, sigtype) { - privKey = new PrivateKey(privKey); - sigtype = sigtype || Signature.SIGHASH_ALL; - var transaction = this; - var results = []; - var hashData = Hash.sha256ripemd160(privKey.publicKey.toBuffer()); - _.each(this.inputs, function forEachInput(input, index) { - _.each(input.getSignatures(transaction, privKey, index, sigtype, hashData), function(signature) { - results.push(signature); - }); - }); - return results; -}; - -/** - * Add a signature to the transaction - * - * @param {Object} signature - * @param {number} signature.inputIndex - * @param {number} signature.sigtype - * @param {PublicKey} signature.publicKey - * @param {Signature} signature.signature - * @return {Transaction} this, for chaining - */ -Transaction.prototype.applySignature = function(signature) { - this.inputs[signature.inputIndex].addSignature(this, signature); - return this; -}; - -Transaction.prototype.isFullySigned = function() { - _.each(this.inputs, function(input) { - if (input.isFullySigned === Input.prototype.isFullySigned) { - throw new errors.Transaction.UnableToVerifySignature( - 'Unrecognized script kind, or not enough information to execute script.' + - 'This usually happens when creating a transaction from a serialized transaction' - ); - } - }); - return _.every(_.map(this.inputs, function(input) { - return input.isFullySigned(); - })); -}; - -Transaction.prototype.isValidSignature = function(signature) { - var self = this; - if (this.inputs[signature.inputIndex].isValidSignature === Input.prototype.isValidSignature) { - throw new errors.Transaction.UnableToVerifySignature( - 'Unrecognized script kind, or not enough information to execute script.' + - 'This usually happens when creating a transaction from a serialized transaction' - ); - } - return this.inputs[signature.inputIndex].isValidSignature(self, signature); -}; - -/** - * @returns {bool} whether the signature is valid for this transaction input - */ -Transaction.prototype.verifySignature = function(sig, pubkey, nin, subscript, sigversion, satoshis) { - - if (_.isUndefined(sigversion)) { - sigversion = 0; - } - - if (sigversion === 1) { - var subscriptBuffer = subscript.toBuffer(); - var scriptCodeWriter = new BufferWriter(); - scriptCodeWriter.writeVarintNum(subscriptBuffer.length); - scriptCodeWriter.write(subscriptBuffer); - - var satoshisBuffer; - if (satoshis) { - $.checkState(JSUtil.isNaturalNumber(satoshis)); - satoshisBuffer = new BufferWriter().writeUInt64LEBN(new BN(satoshis)).toBuffer(); - } else { - satoshisBuffer = this.inputs[nin].getSatoshisBuffer(); - } - var verified = SighashWitness.verify( - this, - sig, - pubkey, - nin, - scriptCodeWriter.toBuffer(), - satoshisBuffer - ); - return verified; - } - - return Sighash.verify(this, sig, pubkey, nin, subscript); -}; - -/** - * Check that a transaction passes basic sanity tests. If not, return a string - * describing the error. This function contains the same logic as - * CheckTransaction in bitcoin core. - */ -Transaction.prototype.verify = function() { - // Basic checks that don't depend on any context - if (this.inputs.length === 0) { - return 'transaction txins empty'; - } - - if (this.outputs.length === 0) { - return 'transaction txouts empty'; - } - - // Check for negative or overflow output values - var valueoutbn = new BN(0); - for (var i = 0; i < this.outputs.length; i++) { - var txout = this.outputs[i]; - - if (txout.invalidSatoshis()) { - return 'transaction txout ' + i + ' satoshis is invalid'; - } - if (txout._satoshisBN.gt(new BN(Transaction.MAX_MONEY, 10))) { - return 'transaction txout ' + i + ' greater than MAX_MONEY'; - } - valueoutbn = valueoutbn.add(txout._satoshisBN); - if (valueoutbn.gt(new BN(Transaction.MAX_MONEY))) { - return 'transaction txout ' + i + ' total output greater than MAX_MONEY'; - } - } - - // Size limits - if (this.toBuffer().length > MAX_BLOCK_SIZE) { - return 'transaction over the maximum block size'; - } - - // Check for duplicate inputs - var txinmap = {}; - for (i = 0; i < this.inputs.length; i++) { - var txin = this.inputs[i]; - - var inputid = txin.prevTxId + ':' + txin.outputIndex; - if (!_.isUndefined(txinmap[inputid])) { - return 'transaction input ' + i + ' duplicate input'; - } - txinmap[inputid] = true; - } - - var isCoinbase = this.isCoinbase(); - if (isCoinbase) { - var buf = this.inputs[0]._scriptBuffer; - if (buf.length < 2 || buf.length > 100) { - return 'coinbase transaction script size invalid'; - } - } else { - for (i = 0; i < this.inputs.length; i++) { - if (this.inputs[i].isNull()) { - return 'transaction input ' + i + ' has null input'; - } - } - } - return true; -}; - -/** - * Analogous to bitcoind's IsCoinBase function in transaction.h - */ -Transaction.prototype.isCoinbase = function() { - return (this.inputs.length === 1 && this.inputs[0].isNull()); -}; - -/** - * Determines if this transaction can be replaced in the mempool with another - * transaction that provides a sufficiently higher fee (RBF). - */ -Transaction.prototype.isRBF = function() { - for (var i = 0; i < this.inputs.length; i++) { - var input = this.inputs[i]; - if (input.sequenceNumber < Input.MAXINT - 1) { - return true; - } - } - return false; -}; - -/** - * Enable this transaction to be replaced in the mempool (RBF) if a transaction - * includes a sufficiently higher fee. It will set the sequenceNumber to - * DEFAULT_RBF_SEQNUMBER for all inputs if the sequence number does not - * already enable RBF. - */ -Transaction.prototype.enableRBF = function() { - for (var i = 0; i < this.inputs.length; i++) { - var input = this.inputs[i]; - if (input.sequenceNumber >= Input.MAXINT - 1) { - input.sequenceNumber = Input.DEFAULT_RBF_SEQNUMBER; - } - } - return this; -}; - -module.exports = Transaction; - -}).call(this,require("buffer").Buffer) -},{"../address":266,"../crypto/bn":271,"../crypto/hash":273,"../crypto/signature":276,"../encoding/bufferreader":279,"../encoding/bufferwriter":280,"../errors":282,"../privatekey":288,"../script":290,"../util/buffer":308,"../util/js":309,"../util/preconditions":310,"./input":294,"./output":300,"./sighash":301,"./sighashwitness":302,"./unspentoutput":305,"buffer":146,"buffer-compare":143,"lodash":311}],305:[function(require,module,exports){ -'use strict'; - -var _ = require('lodash'); -var $ = require('../util/preconditions'); -var JSUtil = require('../util/js'); - -var Script = require('../script'); -var Address = require('../address'); -var Unit = require('../unit'); - -/** - * Represents an unspent output information: its script, associated amount and address, - * transaction id and output index. - * - * @constructor - * @param {object} data - * @param {string} data.txid the previous transaction id - * @param {string=} data.txId alias for `txid` - * @param {number} data.vout the index in the transaction - * @param {number=} data.outputIndex alias for `vout` - * @param {string|Script} data.scriptPubKey the script that must be resolved to release the funds - * @param {string|Script=} data.script alias for `scriptPubKey` - * @param {number} data.amount amount of bitcoins associated - * @param {number=} data.satoshis alias for `amount`, but expressed in satoshis (1 BTC = 1e8 satoshis) - * @param {string|Address=} data.address the associated address to the script, if provided - */ -function UnspentOutput(data) { - /* jshint maxcomplexity: 20 */ - /* jshint maxstatements: 20 */ - if (!(this instanceof UnspentOutput)) { - return new UnspentOutput(data); - } - $.checkArgument(_.isObject(data), 'Must provide an object from where to extract data'); - var address = data.address ? new Address(data.address) : undefined; - var txId = data.txid ? data.txid : data.txId; - if (!txId || !JSUtil.isHexaString(txId) || txId.length > 64) { - // TODO: Use the errors library - throw new Error('Invalid TXID in object', data); - } - var outputIndex = _.isUndefined(data.vout) ? data.outputIndex : data.vout; - if (!_.isNumber(outputIndex)) { - throw new Error('Invalid outputIndex, received ' + outputIndex); - } - $.checkArgument(!_.isUndefined(data.scriptPubKey) || !_.isUndefined(data.script), - 'Must provide the scriptPubKey for that output!'); - var script = new Script(data.scriptPubKey || data.script); - $.checkArgument(!_.isUndefined(data.amount) || !_.isUndefined(data.satoshis), - 'Must provide an amount for the output'); - var amount = !_.isUndefined(data.amount) ? new Unit.fromBTC(data.amount).toSatoshis() : data.satoshis; - $.checkArgument(_.isNumber(amount), 'Amount must be a number'); - JSUtil.defineImmutable(this, { - address: address, - txId: txId, - outputIndex: outputIndex, - script: script, - satoshis: amount - }); -} - -/** - * Provide an informative output when displaying this object in the console - * @returns string - */ -UnspentOutput.prototype.inspect = function() { - return ''; -}; - -/** - * String representation: just "txid:index" - * @returns string - */ -UnspentOutput.prototype.toString = function() { - return this.txId + ':' + this.outputIndex; -}; - -/** - * Deserialize an UnspentOutput from an object - * @param {object|string} data - * @return UnspentOutput - */ -UnspentOutput.fromObject = function(data) { - return new UnspentOutput(data); -}; - -/** - * Returns a plain object (no prototype or methods) with the associated info for this output - * @return {object} - */ -UnspentOutput.prototype.toObject = UnspentOutput.prototype.toJSON = function toObject() { - return { - address: this.address ? this.address.toString() : undefined, - txid: this.txId, - vout: this.outputIndex, - scriptPubKey: this.script.toBuffer().toString('hex'), - amount: Unit.fromSatoshis(this.satoshis).toBTC() - }; -}; - -module.exports = UnspentOutput; - -},{"../address":266,"../script":290,"../unit":306,"../util/js":309,"../util/preconditions":310,"lodash":311}],306:[function(require,module,exports){ -'use strict'; - -var _ = require('lodash'); - -var errors = require('./errors'); -var $ = require('./util/preconditions'); - -var UNITS = { - 'BTC' : [1e8, 8], - 'mBTC' : [1e5, 5], - 'uBTC' : [1e2, 2], - 'bits' : [1e2, 2], - 'satoshis' : [1, 0] -}; - -/** - * Utility for handling and converting bitcoins units. The supported units are - * BTC, mBTC, bits (also named uBTC) and satoshis. A unit instance can be created with an - * amount and a unit code, or alternatively using static methods like {fromBTC}. - * It also allows to be created from a fiat amount and the exchange rate, or - * alternatively using the {fromFiat} static method. - * You can consult for different representation of a unit instance using it's - * {to} method, the fixed unit methods like {toSatoshis} or alternatively using - * the unit accessors. It also can be converted to a fiat amount by providing the - * corresponding BTC/fiat exchange rate. - * - * @example - * ```javascript - * var sats = Unit.fromBTC(1.3).toSatoshis(); - * var mili = Unit.fromBits(1.3).to(Unit.mBTC); - * var bits = Unit.fromFiat(1.3, 350).bits; - * var btc = new Unit(1.3, Unit.bits).BTC; - * ``` - * - * @param {Number} amount - The amount to be represented - * @param {String|Number} code - The unit of the amount or the exchange rate - * @returns {Unit} A new instance of an Unit - * @constructor - */ -function Unit(amount, code) { - if (!(this instanceof Unit)) { - return new Unit(amount, code); - } - - // convert fiat to BTC - if (_.isNumber(code)) { - if (code <= 0) { - throw new errors.Unit.InvalidRate(code); - } - amount = amount / code; - code = Unit.BTC; - } - - this._value = this._from(amount, code); - - var self = this; - var defineAccesor = function(key) { - Object.defineProperty(self, key, { - get: function() { return self.to(key); }, - enumerable: true, - }); - }; - - Object.keys(UNITS).forEach(defineAccesor); -} - -Object.keys(UNITS).forEach(function(key) { - Unit[key] = key; -}); - -/** - * Returns a Unit instance created from JSON string or object - * - * @param {String|Object} json - JSON with keys: amount and code - * @returns {Unit} A Unit instance - */ -Unit.fromObject = function fromObject(data){ - $.checkArgument(_.isObject(data), 'Argument is expected to be an object'); - return new Unit(data.amount, data.code); -}; - -/** - * Returns a Unit instance created from an amount in BTC - * - * @param {Number} amount - The amount in BTC - * @returns {Unit} A Unit instance - */ -Unit.fromBTC = function(amount) { - return new Unit(amount, Unit.BTC); -}; - -/** - * Returns a Unit instance created from an amount in mBTC - * - * @param {Number} amount - The amount in mBTC - * @returns {Unit} A Unit instance - */ -Unit.fromMillis = Unit.fromMilis = function(amount) { - return new Unit(amount, Unit.mBTC); -}; - -/** - * Returns a Unit instance created from an amount in bits - * - * @param {Number} amount - The amount in bits - * @returns {Unit} A Unit instance - */ -Unit.fromMicros = Unit.fromBits = function(amount) { - return new Unit(amount, Unit.bits); -}; - -/** - * Returns a Unit instance created from an amount in satoshis - * - * @param {Number} amount - The amount in satoshis - * @returns {Unit} A Unit instance - */ -Unit.fromSatoshis = function(amount) { - return new Unit(amount, Unit.satoshis); -}; - -/** - * Returns a Unit instance created from a fiat amount and exchange rate. - * - * @param {Number} amount - The amount in fiat - * @param {Number} rate - The exchange rate BTC/fiat - * @returns {Unit} A Unit instance - */ -Unit.fromFiat = function(amount, rate) { - return new Unit(amount, rate); -}; - -Unit.prototype._from = function(amount, code) { - if (!UNITS[code]) { - throw new errors.Unit.UnknownCode(code); - } - return parseInt((amount * UNITS[code][0]).toFixed()); -}; - -/** - * Returns the value represented in the specified unit - * - * @param {String|Number} code - The unit code or exchange rate - * @returns {Number} The converted value - */ -Unit.prototype.to = function(code) { - if (_.isNumber(code)) { - if (code <= 0) { - throw new errors.Unit.InvalidRate(code); - } - return parseFloat((this.BTC * code).toFixed(2)); - } - - if (!UNITS[code]) { - throw new errors.Unit.UnknownCode(code); - } - - var value = this._value / UNITS[code][0]; - return parseFloat(value.toFixed(UNITS[code][1])); -}; - -/** - * Returns the value represented in BTC - * - * @returns {Number} The value converted to BTC - */ -Unit.prototype.toBTC = function() { - return this.to(Unit.BTC); -}; - -/** - * Returns the value represented in mBTC - * - * @returns {Number} The value converted to mBTC - */ -Unit.prototype.toMillis = Unit.prototype.toMilis = function() { - return this.to(Unit.mBTC); -}; - -/** - * Returns the value represented in bits - * - * @returns {Number} The value converted to bits - */ -Unit.prototype.toMicros = Unit.prototype.toBits = function() { - return this.to(Unit.bits); -}; - -/** - * Returns the value represented in satoshis - * - * @returns {Number} The value converted to satoshis - */ -Unit.prototype.toSatoshis = function() { - return this.to(Unit.satoshis); -}; - -/** - * Returns the value represented in fiat - * - * @param {string} rate - The exchange rate between BTC/currency - * @returns {Number} The value converted to satoshis - */ -Unit.prototype.atRate = function(rate) { - return this.to(rate); -}; - -/** - * Returns a the string representation of the value in satoshis - * - * @returns {string} the value in satoshis - */ -Unit.prototype.toString = function() { - return this.satoshis + ' satoshis'; -}; - -/** - * Returns a plain object representation of the Unit - * - * @returns {Object} An object with the keys: amount and code - */ -Unit.prototype.toObject = Unit.prototype.toJSON = function toObject() { - return { - amount: this.BTC, - code: Unit.BTC - }; -}; - -/** - * Returns a string formatted for the console - * - * @returns {string} the value in satoshis - */ -Unit.prototype.inspect = function() { - return ''; -}; - -module.exports = Unit; - -},{"./errors":282,"./util/preconditions":310,"lodash":311}],307:[function(require,module,exports){ -'use strict'; - -var _ = require('lodash'); -var URL = require('url'); - -var Address = require('./address'); -var Unit = require('./unit'); - -/** - * Bitcore URI - * - * Instantiate an URI from a bitcoin URI String or an Object. An URI instance - * can be created with a bitcoin uri string or an object. All instances of - * URI are valid, the static method isValid allows checking before instantiation. - * - * All standard parameters can be found as members of the class, the address - * is represented using an {Address} instance and the amount is represented in - * satoshis. Any other non-standard parameters can be found under the extra member. - * - * @example - * ```javascript - * - * var uri = new URI('bitcoin:12A1MyfXbW6RhdRAZEqofac5jCQQjwEPBu?amount=1.2'); - * console.log(uri.address, uri.amount); - * ``` - * - * @param {string|Object} data - A bitcoin URI string or an Object - * @param {Array.=} knownParams - Required non-standard params - * @throws {TypeError} Invalid bitcoin address - * @throws {TypeError} Invalid amount - * @throws {Error} Unknown required argument - * @returns {URI} A new valid and frozen instance of URI - * @constructor - */ -var URI = function(data, knownParams) { - if (!(this instanceof URI)) { - return new URI(data, knownParams); - } - - this.extras = {}; - this.knownParams = knownParams || []; - this.address = this.network = this.amount = this.message = null; - - if (typeof(data) === 'string') { - var params = URI.parse(data); - if (params.amount) { - params.amount = this._parseAmount(params.amount); - } - this._fromObject(params); - } else if (typeof(data) === 'object') { - this._fromObject(data); - } else { - throw new TypeError('Unrecognized data format.'); - } -}; - -/** - * Instantiate a URI from a String - * - * @param {string} str - JSON string or object of the URI - * @returns {URI} A new instance of a URI - */ -URI.fromString = function fromString(str) { - if (typeof(str) !== 'string') { - throw new TypeError('Expected a string'); - } - return new URI(str); -}; - -/** - * Instantiate a URI from an Object - * - * @param {Object} data - object of the URI - * @returns {URI} A new instance of a URI - */ -URI.fromObject = function fromObject(json) { - return new URI(json); -}; - -/** - * Check if an bitcoin URI string is valid - * - * @example - * ```javascript - * - * var valid = URI.isValid('bitcoin:12A1MyfXbW6RhdRAZEqofac5jCQQjwEPBu'); - * // true - * ``` - * - * @param {string|Object} data - A bitcoin URI string or an Object - * @param {Array.=} knownParams - Required non-standard params - * @returns {boolean} Result of uri validation - */ -URI.isValid = function(arg, knownParams) { - try { - new URI(arg, knownParams); - } catch (err) { - return false; - } - return true; -}; - -/** - * Convert a bitcoin URI string into a simple object. - * - * @param {string} uri - A bitcoin URI string - * @throws {TypeError} Invalid bitcoin URI - * @returns {Object} An object with the parsed params - */ -URI.parse = function(uri) { - var info = URL.parse(uri, true); - - if (info.protocol !== 'bitcoin:') { - throw new TypeError('Invalid bitcoin URI'); - } - - // workaround to host insensitiveness - var group = /[^:]*:\/?\/?([^?]*)/.exec(uri); - info.query.address = group && group[1] || undefined; - - return info.query; -}; - -URI.Members = ['address', 'amount', 'message', 'label', 'r']; - -/** - * Internal function to load the URI instance with an object. - * - * @param {Object} obj - Object with the information - * @throws {TypeError} Invalid bitcoin address - * @throws {TypeError} Invalid amount - * @throws {Error} Unknown required argument - */ -URI.prototype._fromObject = function(obj) { - /* jshint maxcomplexity: 10 */ - - if (!Address.isValid(obj.address)) { - throw new TypeError('Invalid bitcoin address'); - } - - this.address = new Address(obj.address); - this.network = this.address.network; - this.amount = obj.amount; - - for (var key in obj) { - if (key === 'address' || key === 'amount') { - continue; - } - - if (/^req-/.exec(key) && this.knownParams.indexOf(key) === -1) { - throw Error('Unknown required argument ' + key); - } - - var destination = URI.Members.indexOf(key) > -1 ? this : this.extras; - destination[key] = obj[key]; - } -}; - -/** - * Internal function to transform a BTC string amount into satoshis - * - * @param {string} amount - Amount BTC string - * @throws {TypeError} Invalid amount - * @returns {Object} Amount represented in satoshis - */ -URI.prototype._parseAmount = function(amount) { - amount = Number(amount); - if (isNaN(amount)) { - throw new TypeError('Invalid amount'); - } - return Unit.fromBTC(amount).toSatoshis(); -}; - -URI.prototype.toObject = URI.prototype.toJSON = function toObject() { - var json = {}; - for (var i = 0; i < URI.Members.length; i++) { - var m = URI.Members[i]; - if (this.hasOwnProperty(m) && typeof(this[m]) !== 'undefined') { - json[m] = this[m].toString(); - } - } - _.extend(json, this.extras); - return json; -}; - -/** - * Will return a the string representation of the URI - * - * @returns {string} Bitcoin URI string - */ -URI.prototype.toString = function() { - var query = {}; - if (this.amount) { - query.amount = Unit.fromSatoshis(this.amount).toBTC(); - } - if (this.message) { - query.message = this.message; - } - if (this.label) { - query.label = this.label; - } - if (this.r) { - query.r = this.r; - } - _.extend(query, this.extras); - - return URL.format({ - protocol: 'bitcoin:', - host: this.address, - query: query - }); -}; - -/** - * Will return a string formatted for the console - * - * @returns {string} Bitcoin URI - */ -URI.prototype.inspect = function() { - return ''; -}; - -module.exports = URI; - -},{"./address":266,"./unit":306,"lodash":311,"url":819}],308:[function(require,module,exports){ -(function (Buffer){ -'use strict'; - -var buffer = require('buffer'); -var assert = require('assert'); - -var js = require('./js'); -var $ = require('./preconditions'); - -function equals(a, b) { - if (a.length !== b.length) { - return false; - } - var length = a.length; - for (var i = 0; i < length; i++) { - if (a[i] !== b[i]) { - return false; - } - } - return true; -} - -module.exports = { - /** - * Fill a buffer with a value. - * - * @param {Buffer} buffer - * @param {number} value - * @return {Buffer} - */ - fill: function fill(buffer, value) { - $.checkArgumentType(buffer, 'Buffer', 'buffer'); - $.checkArgumentType(value, 'number', 'value'); - var length = buffer.length; - for (var i = 0; i < length; i++) { - buffer[i] = value; - } - return buffer; - }, - - /** - * Return a copy of a buffer - * - * @param {Buffer} original - * @return {Buffer} - */ - copy: function(original) { - var buffer = Buffer.alloc(original.length); - original.copy(buffer); - return buffer; - }, - - /** - * Returns true if the given argument is an instance of a buffer. Tests for - * both node's Buffer and Uint8Array - * - * @param {*} arg - * @return {boolean} - */ - isBuffer: function isBuffer(arg) { - return buffer.Buffer.isBuffer(arg) || arg instanceof Uint8Array; - }, - - /** - * Returns a zero-filled byte array - * - * @param {number} bytes - * @return {Buffer} - */ - emptyBuffer: function emptyBuffer(bytes) { - $.checkArgumentType(bytes, 'number', 'bytes'); - var result = new buffer.Buffer(bytes); - for (var i = 0; i < bytes; i++) { - result.write('\0', i); - } - return result; - }, - - /** - * Concatenates a buffer - * - * Shortcut for buffer.Buffer.concat - */ - concat: buffer.Buffer.concat, - - equals: equals, - equal: equals, - - /** - * Transforms a number from 0 to 255 into a Buffer of size 1 with that value - * - * @param {number} integer - * @return {Buffer} - */ - integerAsSingleByteBuffer: function integerAsSingleByteBuffer(integer) { - $.checkArgumentType(integer, 'number', 'integer'); - return new buffer.Buffer([integer & 0xff]); - }, - - /** - * Transform a 4-byte integer into a Buffer of length 4. - * - * @param {number} integer - * @return {Buffer} - */ - integerAsBuffer: function integerAsBuffer(integer) { - $.checkArgumentType(integer, 'number', 'integer'); - var bytes = []; - bytes.push((integer >> 24) & 0xff); - bytes.push((integer >> 16) & 0xff); - bytes.push((integer >> 8) & 0xff); - bytes.push(integer & 0xff); - return Buffer.from(bytes); - }, - - /** - * Transform the first 4 values of a Buffer into a number, in little endian encoding - * - * @param {Buffer} buffer - * @return {number} - */ - integerFromBuffer: function integerFromBuffer(buffer) { - $.checkArgumentType(buffer, 'Buffer', 'buffer'); - return buffer[0] << 24 | buffer[1] << 16 | buffer[2] << 8 | buffer[3]; - }, - - /** - * Transforms the first byte of an array into a number ranging from -128 to 127 - * @param {Buffer} buffer - * @return {number} - */ - integerFromSingleByteBuffer: function integerFromBuffer(buffer) { - $.checkArgumentType(buffer, 'Buffer', 'buffer'); - return buffer[0]; - }, - - /** - * Transforms a buffer into a string with a number in hexa representation - * - * Shorthand for buffer.toString('hex') - * - * @param {Buffer} buffer - * @return {string} - */ - bufferToHex: function bufferToHex(buffer) { - $.checkArgumentType(buffer, 'Buffer', 'buffer'); - return buffer.toString('hex'); - }, - - /** - * Reverse a buffer - * @param {Buffer} param - * @return {Buffer} - */ - reverse: function reverse(param) { - var ret = new buffer.Buffer(param.length); - for (var i = 0; i < param.length; i++) { - ret[i] = param[param.length - i - 1]; - } - return ret; - }, - - /** - * Transforms an hexa encoded string into a Buffer with binary values - * - * Shorthand for Buffer(string, 'hex') - * - * @param {string} string - * @return {Buffer} - */ - hexToBuffer: function hexToBuffer(string) { - assert(js.isHexa(string)); - return new buffer.Buffer(string, 'hex'); - } -}; - -module.exports.NULL_HASH = module.exports.fill(Buffer.alloc(32), 0); -module.exports.EMPTY_BUFFER = Buffer.alloc(0); - -}).call(this,require("buffer").Buffer) -},{"./js":309,"./preconditions":310,"assert":26,"buffer":146}],309:[function(require,module,exports){ -'use strict'; - -var _ = require('lodash'); - -/** - * Determines whether a string contains only hexadecimal values - * - * @name JSUtil.isHexa - * @param {string} value - * @return {boolean} true if the string is the hexa representation of a number - */ -var isHexa = function isHexa(value) { - if (!_.isString(value)) { - return false; - } - return /^[0-9a-fA-F]+$/.test(value); -}; - -/** - * @namespace JSUtil - */ -module.exports = { - /** - * Test if an argument is a valid JSON object. If it is, returns a truthy - * value (the json object decoded), so no double JSON.parse call is necessary - * - * @param {string} arg - * @return {Object|boolean} false if the argument is not a JSON string. - */ - isValidJSON: function isValidJSON(arg) { - var parsed; - if (!_.isString(arg)) { - return false; - } - try { - parsed = JSON.parse(arg); - } catch (e) { - return false; - } - if (typeof(parsed) === 'object') { - return true; - } - return false; - }, - isHexa: isHexa, - isHexaString: isHexa, - - /** - * Clone an array - */ - cloneArray: function(array) { - return [].concat(array); - }, - - /** - * Define immutable properties on a target object - * - * @param {Object} target - An object to be extended - * @param {Object} values - An object of properties - * @return {Object} The target object - */ - defineImmutable: function defineImmutable(target, values) { - Object.keys(values).forEach(function(key){ - Object.defineProperty(target, key, { - configurable: false, - enumerable: true, - value: values[key] - }); - }); - return target; - }, - /** - * Checks that a value is a natural number, a positive integer or zero. - * - * @param {*} value - * @return {Boolean} - */ - isNaturalNumber: function isNaturalNumber(value) { - return typeof value === 'number' && - isFinite(value) && - Math.floor(value) === value && - value >= 0; - } -}; - -},{"lodash":311}],310:[function(require,module,exports){ -'use strict'; - -var errors = require('../errors'); -var _ = require('lodash'); - -module.exports = { - checkState: function(condition, message) { - if (!condition) { - throw new errors.InvalidState(message); - } - }, - checkArgument: function(condition, argumentName, message, docsPath) { - if (!condition) { - throw new errors.InvalidArgument(argumentName, message, docsPath); - } - }, - checkArgumentType: function(argument, type, argumentName) { - argumentName = argumentName || '(unknown name)'; - if (_.isString(type)) { - if (type === 'Buffer') { - var buffer = require('buffer'); // './buffer' fails on cordova & RN - if (!buffer.Buffer.isBuffer(argument)) { - throw new errors.InvalidArgumentType(argument, type, argumentName); - } - } else if (typeof argument !== type) { - throw new errors.InvalidArgumentType(argument, type, argumentName); - } - } else { - if (!(argument instanceof type)) { - throw new errors.InvalidArgumentType(argument, type.name, argumentName); - } - } - } -}; - -},{"../errors":282,"buffer":146,"lodash":311}],311:[function(require,module,exports){ -(function (global){ -/** - * @license - * Lodash - * Copyright OpenJS Foundation and other contributors - * Released under MIT license - * Based on Underscore.js 1.8.3 - * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors - */ -;(function() { - - /** Used as a safe reference for `undefined` in pre-ES5 environments. */ - var undefined; - - /** Used as the semantic version number. */ - var VERSION = '4.17.12'; - - /** Used as the size to enable large array optimizations. */ - var LARGE_ARRAY_SIZE = 200; - - /** Error message constants. */ - var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.', - FUNC_ERROR_TEXT = 'Expected a function'; - - /** Used to stand-in for `undefined` hash values. */ - var HASH_UNDEFINED = '__lodash_hash_undefined__'; - - /** Used as the maximum memoize cache size. */ - var MAX_MEMOIZE_SIZE = 500; - - /** Used as the internal argument placeholder. */ - var PLACEHOLDER = '__lodash_placeholder__'; - - /** Used to compose bitmasks for cloning. */ - var CLONE_DEEP_FLAG = 1, - CLONE_FLAT_FLAG = 2, - CLONE_SYMBOLS_FLAG = 4; - - /** Used to compose bitmasks for value comparisons. */ - var COMPARE_PARTIAL_FLAG = 1, - COMPARE_UNORDERED_FLAG = 2; - - /** Used to compose bitmasks for function metadata. */ - var WRAP_BIND_FLAG = 1, - WRAP_BIND_KEY_FLAG = 2, - WRAP_CURRY_BOUND_FLAG = 4, - WRAP_CURRY_FLAG = 8, - WRAP_CURRY_RIGHT_FLAG = 16, - WRAP_PARTIAL_FLAG = 32, - WRAP_PARTIAL_RIGHT_FLAG = 64, - WRAP_ARY_FLAG = 128, - WRAP_REARG_FLAG = 256, - WRAP_FLIP_FLAG = 512; - - /** Used as default options for `_.truncate`. */ - var DEFAULT_TRUNC_LENGTH = 30, - DEFAULT_TRUNC_OMISSION = '...'; - - /** Used to detect hot functions by number of calls within a span of milliseconds. */ - var HOT_COUNT = 800, - HOT_SPAN = 16; - - /** Used to indicate the type of lazy iteratees. */ - var LAZY_FILTER_FLAG = 1, - LAZY_MAP_FLAG = 2, - LAZY_WHILE_FLAG = 3; - - /** Used as references for various `Number` constants. */ - var INFINITY = 1 / 0, - MAX_SAFE_INTEGER = 9007199254740991, - MAX_INTEGER = 1.7976931348623157e+308, - NAN = 0 / 0; - - /** Used as references for the maximum length and index of an array. */ - var MAX_ARRAY_LENGTH = 4294967295, - MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1, - HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1; - - /** Used to associate wrap methods with their bit flags. */ - var wrapFlags = [ - ['ary', WRAP_ARY_FLAG], - ['bind', WRAP_BIND_FLAG], - ['bindKey', WRAP_BIND_KEY_FLAG], - ['curry', WRAP_CURRY_FLAG], - ['curryRight', WRAP_CURRY_RIGHT_FLAG], - ['flip', WRAP_FLIP_FLAG], - ['partial', WRAP_PARTIAL_FLAG], - ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], - ['rearg', WRAP_REARG_FLAG] - ]; - - /** `Object#toString` result references. */ - var argsTag = '[object Arguments]', - arrayTag = '[object Array]', - asyncTag = '[object AsyncFunction]', - boolTag = '[object Boolean]', - dateTag = '[object Date]', - domExcTag = '[object DOMException]', - errorTag = '[object Error]', - funcTag = '[object Function]', - genTag = '[object GeneratorFunction]', - mapTag = '[object Map]', - numberTag = '[object Number]', - nullTag = '[object Null]', - objectTag = '[object Object]', - promiseTag = '[object Promise]', - proxyTag = '[object Proxy]', - regexpTag = '[object RegExp]', - setTag = '[object Set]', - stringTag = '[object String]', - symbolTag = '[object Symbol]', - undefinedTag = '[object Undefined]', - weakMapTag = '[object WeakMap]', - weakSetTag = '[object WeakSet]'; - - var arrayBufferTag = '[object ArrayBuffer]', - dataViewTag = '[object DataView]', - float32Tag = '[object Float32Array]', - float64Tag = '[object Float64Array]', - int8Tag = '[object Int8Array]', - int16Tag = '[object Int16Array]', - int32Tag = '[object Int32Array]', - uint8Tag = '[object Uint8Array]', - uint8ClampedTag = '[object Uint8ClampedArray]', - uint16Tag = '[object Uint16Array]', - uint32Tag = '[object Uint32Array]'; - - /** Used to match empty string literals in compiled template source. */ - var reEmptyStringLeading = /\b__p \+= '';/g, - reEmptyStringMiddle = /\b(__p \+=) '' \+/g, - reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g; - - /** Used to match HTML entities and HTML characters. */ - var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g, - reUnescapedHtml = /[&<>"']/g, - reHasEscapedHtml = RegExp(reEscapedHtml.source), - reHasUnescapedHtml = RegExp(reUnescapedHtml.source); - - /** Used to match template delimiters. */ - var reEscape = /<%-([\s\S]+?)%>/g, - reEvaluate = /<%([\s\S]+?)%>/g, - reInterpolate = /<%=([\s\S]+?)%>/g; - - /** Used to match property names within property paths. */ - var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, - reIsPlainProp = /^\w*$/, - rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; - - /** - * Used to match `RegExp` - * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). - */ - var reRegExpChar = /[\\^$.*+?()[\]{}|]/g, - reHasRegExpChar = RegExp(reRegExpChar.source); - - /** Used to match leading and trailing whitespace. */ - var reTrim = /^\s+|\s+$/g, - reTrimStart = /^\s+/, - reTrimEnd = /\s+$/; - - /** Used to match wrap detail comments. */ - var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, - reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, - reSplitDetails = /,? & /; - - /** Used to match words composed of alphanumeric characters. */ - var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g; - - /** Used to match backslashes in property paths. */ - var reEscapeChar = /\\(\\)?/g; - - /** - * Used to match - * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components). - */ - var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g; - - /** Used to match `RegExp` flags from their coerced string values. */ - var reFlags = /\w*$/; - - /** Used to detect bad signed hexadecimal string values. */ - var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; - - /** Used to detect binary string values. */ - var reIsBinary = /^0b[01]+$/i; - - /** Used to detect host constructors (Safari). */ - var reIsHostCtor = /^\[object .+?Constructor\]$/; - - /** Used to detect octal string values. */ - var reIsOctal = /^0o[0-7]+$/i; - - /** Used to detect unsigned integer values. */ - var reIsUint = /^(?:0|[1-9]\d*)$/; - - /** Used to match Latin Unicode letters (excluding mathematical operators). */ - var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g; - - /** Used to ensure capturing order of template delimiters. */ - var reNoMatch = /($^)/; - - /** Used to match unescaped characters in compiled string literals. */ - var reUnescapedString = /['\n\r\u2028\u2029\\]/g; - - /** Used to compose unicode character classes. */ - var rsAstralRange = '\\ud800-\\udfff', - rsComboMarksRange = '\\u0300-\\u036f', - reComboHalfMarksRange = '\\ufe20-\\ufe2f', - rsComboSymbolsRange = '\\u20d0-\\u20ff', - rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, - rsDingbatRange = '\\u2700-\\u27bf', - rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff', - rsMathOpRange = '\\xac\\xb1\\xd7\\xf7', - rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf', - rsPunctuationRange = '\\u2000-\\u206f', - rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000', - rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde', - rsVarRange = '\\ufe0e\\ufe0f', - rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange; - - /** Used to compose unicode capture groups. */ - var rsApos = "['\u2019]", - rsAstral = '[' + rsAstralRange + ']', - rsBreak = '[' + rsBreakRange + ']', - rsCombo = '[' + rsComboRange + ']', - rsDigits = '\\d+', - rsDingbat = '[' + rsDingbatRange + ']', - rsLower = '[' + rsLowerRange + ']', - rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']', - rsFitz = '\\ud83c[\\udffb-\\udfff]', - rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', - rsNonAstral = '[^' + rsAstralRange + ']', - rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', - rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', - rsUpper = '[' + rsUpperRange + ']', - rsZWJ = '\\u200d'; - - /** Used to compose unicode regexes. */ - var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')', - rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')', - rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?', - rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?', - reOptMod = rsModifier + '?', - rsOptVar = '[' + rsVarRange + ']?', - rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', - rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])', - rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])', - rsSeq = rsOptVar + reOptMod + rsOptJoin, - rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq, - rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; - - /** Used to match apostrophes. */ - var reApos = RegExp(rsApos, 'g'); - - /** - * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and - * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols). - */ - var reComboMark = RegExp(rsCombo, 'g'); - - /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ - var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); - - /** Used to match complex or compound words. */ - var reUnicodeWord = RegExp([ - rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')', - rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')', - rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower, - rsUpper + '+' + rsOptContrUpper, - rsOrdUpper, - rsOrdLower, - rsDigits, - rsEmoji - ].join('|'), 'g'); - - /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ - var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); - - /** Used to detect strings that need a more robust regexp to match words. */ - var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/; - - /** Used to assign default `context` object properties. */ - var contextProps = [ - 'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array', - 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object', - 'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array', - 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap', - '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout' - ]; - - /** Used to make template sourceURLs easier to identify. */ - var templateCounter = -1; - - /** Used to identify `toStringTag` values of typed arrays. */ - var typedArrayTags = {}; - typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = - typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = - typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = - typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = - typedArrayTags[uint32Tag] = true; - typedArrayTags[argsTag] = typedArrayTags[arrayTag] = - typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = - typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = - typedArrayTags[errorTag] = typedArrayTags[funcTag] = - typedArrayTags[mapTag] = typedArrayTags[numberTag] = - typedArrayTags[objectTag] = typedArrayTags[regexpTag] = - typedArrayTags[setTag] = typedArrayTags[stringTag] = - typedArrayTags[weakMapTag] = false; - - /** Used to identify `toStringTag` values supported by `_.clone`. */ - var cloneableTags = {}; - cloneableTags[argsTag] = cloneableTags[arrayTag] = - cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = - cloneableTags[boolTag] = cloneableTags[dateTag] = - cloneableTags[float32Tag] = cloneableTags[float64Tag] = - cloneableTags[int8Tag] = cloneableTags[int16Tag] = - cloneableTags[int32Tag] = cloneableTags[mapTag] = - cloneableTags[numberTag] = cloneableTags[objectTag] = - cloneableTags[regexpTag] = cloneableTags[setTag] = - cloneableTags[stringTag] = cloneableTags[symbolTag] = - cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = - cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; - cloneableTags[errorTag] = cloneableTags[funcTag] = - cloneableTags[weakMapTag] = false; - - /** Used to map Latin Unicode letters to basic Latin letters. */ - var deburredLetters = { - // Latin-1 Supplement block. - '\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A', - '\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a', - '\xc7': 'C', '\xe7': 'c', - '\xd0': 'D', '\xf0': 'd', - '\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E', - '\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e', - '\xcc': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I', - '\xec': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i', - '\xd1': 'N', '\xf1': 'n', - '\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O', - '\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o', - '\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U', - '\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u', - '\xdd': 'Y', '\xfd': 'y', '\xff': 'y', - '\xc6': 'Ae', '\xe6': 'ae', - '\xde': 'Th', '\xfe': 'th', - '\xdf': 'ss', - // Latin Extended-A block. - '\u0100': 'A', '\u0102': 'A', '\u0104': 'A', - '\u0101': 'a', '\u0103': 'a', '\u0105': 'a', - '\u0106': 'C', '\u0108': 'C', '\u010a': 'C', '\u010c': 'C', - '\u0107': 'c', '\u0109': 'c', '\u010b': 'c', '\u010d': 'c', - '\u010e': 'D', '\u0110': 'D', '\u010f': 'd', '\u0111': 'd', - '\u0112': 'E', '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E', - '\u0113': 'e', '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e', - '\u011c': 'G', '\u011e': 'G', '\u0120': 'G', '\u0122': 'G', - '\u011d': 'g', '\u011f': 'g', '\u0121': 'g', '\u0123': 'g', - '\u0124': 'H', '\u0126': 'H', '\u0125': 'h', '\u0127': 'h', - '\u0128': 'I', '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I', - '\u0129': 'i', '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i', - '\u0134': 'J', '\u0135': 'j', - '\u0136': 'K', '\u0137': 'k', '\u0138': 'k', - '\u0139': 'L', '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L', - '\u013a': 'l', '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l', - '\u0143': 'N', '\u0145': 'N', '\u0147': 'N', '\u014a': 'N', - '\u0144': 'n', '\u0146': 'n', '\u0148': 'n', '\u014b': 'n', - '\u014c': 'O', '\u014e': 'O', '\u0150': 'O', - '\u014d': 'o', '\u014f': 'o', '\u0151': 'o', - '\u0154': 'R', '\u0156': 'R', '\u0158': 'R', - '\u0155': 'r', '\u0157': 'r', '\u0159': 'r', - '\u015a': 'S', '\u015c': 'S', '\u015e': 'S', '\u0160': 'S', - '\u015b': 's', '\u015d': 's', '\u015f': 's', '\u0161': 's', - '\u0162': 'T', '\u0164': 'T', '\u0166': 'T', - '\u0163': 't', '\u0165': 't', '\u0167': 't', - '\u0168': 'U', '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U', - '\u0169': 'u', '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u', - '\u0174': 'W', '\u0175': 'w', - '\u0176': 'Y', '\u0177': 'y', '\u0178': 'Y', - '\u0179': 'Z', '\u017b': 'Z', '\u017d': 'Z', - '\u017a': 'z', '\u017c': 'z', '\u017e': 'z', - '\u0132': 'IJ', '\u0133': 'ij', - '\u0152': 'Oe', '\u0153': 'oe', - '\u0149': "'n", '\u017f': 's' - }; - - /** Used to map characters to HTML entities. */ - var htmlEscapes = { - '&': '&', - '<': '<', - '>': '>', - '"': '"', - "'": ''' - }; - - /** Used to map HTML entities to characters. */ - var htmlUnescapes = { - '&': '&', - '<': '<', - '>': '>', - '"': '"', - ''': "'" - }; - - /** Used to escape characters for inclusion in compiled string literals. */ - var stringEscapes = { - '\\': '\\', - "'": "'", - '\n': 'n', - '\r': 'r', - '\u2028': 'u2028', - '\u2029': 'u2029' - }; - - /** Built-in method references without a dependency on `root`. */ - var freeParseFloat = parseFloat, - freeParseInt = parseInt; - - /** Detect free variable `global` from Node.js. */ - var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; - - /** Detect free variable `self`. */ - var freeSelf = typeof self == 'object' && self && self.Object === Object && self; - - /** Used as a reference to the global object. */ - var root = freeGlobal || freeSelf || Function('return this')(); - - /** Detect free variable `exports`. */ - var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; - - /** Detect free variable `module`. */ - var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; - - /** Detect the popular CommonJS extension `module.exports`. */ - var moduleExports = freeModule && freeModule.exports === freeExports; - - /** Detect free variable `process` from Node.js. */ - var freeProcess = moduleExports && freeGlobal.process; - - /** Used to access faster Node.js helpers. */ - var nodeUtil = (function() { - try { - // Use `util.types` for Node.js 10+. - var types = freeModule && freeModule.require && freeModule.require('util').types; - - if (types) { - return types; - } - - // Legacy `process.binding('util')` for Node.js < 10. - return freeProcess && freeProcess.binding && freeProcess.binding('util'); - } catch (e) {} - }()); - - /* Node.js helper references. */ - var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer, - nodeIsDate = nodeUtil && nodeUtil.isDate, - nodeIsMap = nodeUtil && nodeUtil.isMap, - nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, - nodeIsSet = nodeUtil && nodeUtil.isSet, - nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; - - /*--------------------------------------------------------------------------*/ - - /** - * A faster alternative to `Function#apply`, this function invokes `func` - * with the `this` binding of `thisArg` and the arguments of `args`. - * - * @private - * @param {Function} func The function to invoke. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} args The arguments to invoke `func` with. - * @returns {*} Returns the result of `func`. - */ - function apply(func, thisArg, args) { - switch (args.length) { - case 0: return func.call(thisArg); - case 1: return func.call(thisArg, args[0]); - case 2: return func.call(thisArg, args[0], args[1]); - case 3: return func.call(thisArg, args[0], args[1], args[2]); - } - return func.apply(thisArg, args); - } - - /** - * A specialized version of `baseAggregator` for arrays. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function arrayAggregator(array, setter, iteratee, accumulator) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - var value = array[index]; - setter(accumulator, value, iteratee(value), array); - } - return accumulator; - } - - /** - * A specialized version of `_.forEach` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns `array`. - */ - function arrayEach(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (iteratee(array[index], index, array) === false) { - break; - } - } - return array; - } - - /** - * A specialized version of `_.forEachRight` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns `array`. - */ - function arrayEachRight(array, iteratee) { - var length = array == null ? 0 : array.length; - - while (length--) { - if (iteratee(array[length], length, array) === false) { - break; - } - } - return array; - } - - /** - * A specialized version of `_.every` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - */ - function arrayEvery(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (!predicate(array[index], index, array)) { - return false; - } - } - return true; - } - - /** - * A specialized version of `_.filter` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function arrayFilter(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (predicate(value, index, array)) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * A specialized version of `_.includes` for arrays without support for - * specifying an index to search from. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludes(array, value) { - var length = array == null ? 0 : array.length; - return !!length && baseIndexOf(array, value, 0) > -1; - } - - /** - * This function is like `arrayIncludes` except that it accepts a comparator. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @param {Function} comparator The comparator invoked per element. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludesWith(array, value, comparator) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (comparator(value, array[index])) { - return true; - } - } - return false; - } - - /** - * A specialized version of `_.map` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function arrayMap(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length, - result = Array(length); - - while (++index < length) { - result[index] = iteratee(array[index], index, array); - } - return result; - } - - /** - * Appends the elements of `values` to `array`. - * - * @private - * @param {Array} array The array to modify. - * @param {Array} values The values to append. - * @returns {Array} Returns `array`. - */ - function arrayPush(array, values) { - var index = -1, - length = values.length, - offset = array.length; - - while (++index < length) { - array[offset + index] = values[index]; - } - return array; - } - - /** - * A specialized version of `_.reduce` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @param {boolean} [initAccum] Specify using the first element of `array` as - * the initial value. - * @returns {*} Returns the accumulated value. - */ - function arrayReduce(array, iteratee, accumulator, initAccum) { - var index = -1, - length = array == null ? 0 : array.length; - - if (initAccum && length) { - accumulator = array[++index]; - } - while (++index < length) { - accumulator = iteratee(accumulator, array[index], index, array); - } - return accumulator; - } - - /** - * A specialized version of `_.reduceRight` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @param {boolean} [initAccum] Specify using the last element of `array` as - * the initial value. - * @returns {*} Returns the accumulated value. - */ - function arrayReduceRight(array, iteratee, accumulator, initAccum) { - var length = array == null ? 0 : array.length; - if (initAccum && length) { - accumulator = array[--length]; - } - while (length--) { - accumulator = iteratee(accumulator, array[length], length, array); - } - return accumulator; - } - - /** - * A specialized version of `_.some` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function arraySome(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (predicate(array[index], index, array)) { - return true; - } - } - return false; - } - - /** - * Gets the size of an ASCII `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - var asciiSize = baseProperty('length'); - - /** - * Converts an ASCII `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function asciiToArray(string) { - return string.split(''); - } - - /** - * Splits an ASCII `string` into an array of its words. - * - * @private - * @param {string} The string to inspect. - * @returns {Array} Returns the words of `string`. - */ - function asciiWords(string) { - return string.match(reAsciiWord) || []; - } - - /** - * The base implementation of methods like `_.findKey` and `_.findLastKey`, - * without support for iteratee shorthands, which iterates over `collection` - * using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the found element or its key, else `undefined`. - */ - function baseFindKey(collection, predicate, eachFunc) { - var result; - eachFunc(collection, function(value, key, collection) { - if (predicate(value, key, collection)) { - result = key; - return false; - } - }); - return result; - } - - /** - * The base implementation of `_.findIndex` and `_.findLastIndex` without - * support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {number} fromIndex The index to search from. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseFindIndex(array, predicate, fromIndex, fromRight) { - var length = array.length, - index = fromIndex + (fromRight ? 1 : -1); - - while ((fromRight ? index-- : ++index < length)) { - if (predicate(array[index], index, array)) { - return index; - } - } - return -1; - } - - /** - * The base implementation of `_.indexOf` without `fromIndex` bounds checks. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseIndexOf(array, value, fromIndex) { - return value === value - ? strictIndexOf(array, value, fromIndex) - : baseFindIndex(array, baseIsNaN, fromIndex); - } - - /** - * This function is like `baseIndexOf` except that it accepts a comparator. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @param {Function} comparator The comparator invoked per element. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseIndexOfWith(array, value, fromIndex, comparator) { - var index = fromIndex - 1, - length = array.length; - - while (++index < length) { - if (comparator(array[index], value)) { - return index; - } - } - return -1; - } - - /** - * The base implementation of `_.isNaN` without support for number objects. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - */ - function baseIsNaN(value) { - return value !== value; - } - - /** - * The base implementation of `_.mean` and `_.meanBy` without support for - * iteratee shorthands. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {number} Returns the mean. - */ - function baseMean(array, iteratee) { - var length = array == null ? 0 : array.length; - return length ? (baseSum(array, iteratee) / length) : NAN; - } - - /** - * The base implementation of `_.property` without support for deep paths. - * - * @private - * @param {string} key The key of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function baseProperty(key) { - return function(object) { - return object == null ? undefined : object[key]; - }; - } - - /** - * The base implementation of `_.propertyOf` without support for deep paths. - * - * @private - * @param {Object} object The object to query. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyOf(object) { - return function(key) { - return object == null ? undefined : object[key]; - }; - } - - /** - * The base implementation of `_.reduce` and `_.reduceRight`, without support - * for iteratee shorthands, which iterates over `collection` using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} accumulator The initial value. - * @param {boolean} initAccum Specify using the first or last element of - * `collection` as the initial value. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the accumulated value. - */ - function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { - eachFunc(collection, function(value, index, collection) { - accumulator = initAccum - ? (initAccum = false, value) - : iteratee(accumulator, value, index, collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.sortBy` which uses `comparer` to define the - * sort order of `array` and replaces criteria objects with their corresponding - * values. - * - * @private - * @param {Array} array The array to sort. - * @param {Function} comparer The function to define sort order. - * @returns {Array} Returns `array`. - */ - function baseSortBy(array, comparer) { - var length = array.length; - - array.sort(comparer); - while (length--) { - array[length] = array[length].value; - } - return array; - } - - /** - * The base implementation of `_.sum` and `_.sumBy` without support for - * iteratee shorthands. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {number} Returns the sum. - */ - function baseSum(array, iteratee) { - var result, - index = -1, - length = array.length; - - while (++index < length) { - var current = iteratee(array[index]); - if (current !== undefined) { - result = result === undefined ? current : (result + current); - } - } - return result; - } - - /** - * The base implementation of `_.times` without support for iteratee shorthands - * or max array length checks. - * - * @private - * @param {number} n The number of times to invoke `iteratee`. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the array of results. - */ - function baseTimes(n, iteratee) { - var index = -1, - result = Array(n); - - while (++index < n) { - result[index] = iteratee(index); - } - return result; - } - - /** - * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array - * of key-value pairs for `object` corresponding to the property names of `props`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} props The property names to get values for. - * @returns {Object} Returns the key-value pairs. - */ - function baseToPairs(object, props) { - return arrayMap(props, function(key) { - return [key, object[key]]; - }); - } - - /** - * The base implementation of `_.unary` without support for storing metadata. - * - * @private - * @param {Function} func The function to cap arguments for. - * @returns {Function} Returns the new capped function. - */ - function baseUnary(func) { - return function(value) { - return func(value); - }; - } - - /** - * The base implementation of `_.values` and `_.valuesIn` which creates an - * array of `object` property values corresponding to the property names - * of `props`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} props The property names to get values for. - * @returns {Object} Returns the array of property values. - */ - function baseValues(object, props) { - return arrayMap(props, function(key) { - return object[key]; - }); - } - - /** - * Checks if a `cache` value for `key` exists. - * - * @private - * @param {Object} cache The cache to query. - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function cacheHas(cache, key) { - return cache.has(key); - } - - /** - * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the first unmatched string symbol. - */ - function charsStartIndex(strSymbols, chrSymbols) { - var index = -1, - length = strSymbols.length; - - while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } - - /** - * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the last unmatched string symbol. - */ - function charsEndIndex(strSymbols, chrSymbols) { - var index = strSymbols.length; - - while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } - - /** - * Gets the number of `placeholder` occurrences in `array`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} placeholder The placeholder to search for. - * @returns {number} Returns the placeholder count. - */ - function countHolders(array, placeholder) { - var length = array.length, - result = 0; - - while (length--) { - if (array[length] === placeholder) { - ++result; - } - } - return result; - } - - /** - * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A - * letters to basic Latin letters. - * - * @private - * @param {string} letter The matched letter to deburr. - * @returns {string} Returns the deburred letter. - */ - var deburrLetter = basePropertyOf(deburredLetters); - - /** - * Used by `_.escape` to convert characters to HTML entities. - * - * @private - * @param {string} chr The matched character to escape. - * @returns {string} Returns the escaped character. - */ - var escapeHtmlChar = basePropertyOf(htmlEscapes); - - /** - * Used by `_.template` to escape characters for inclusion in compiled string literals. - * - * @private - * @param {string} chr The matched character to escape. - * @returns {string} Returns the escaped character. - */ - function escapeStringChar(chr) { - return '\\' + stringEscapes[chr]; - } - - /** - * Gets the value at `key` of `object`. - * - * @private - * @param {Object} [object] The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function getValue(object, key) { - return object == null ? undefined : object[key]; - } - - /** - * Checks if `string` contains Unicode symbols. - * - * @private - * @param {string} string The string to inspect. - * @returns {boolean} Returns `true` if a symbol is found, else `false`. - */ - function hasUnicode(string) { - return reHasUnicode.test(string); - } - - /** - * Checks if `string` contains a word composed of Unicode symbols. - * - * @private - * @param {string} string The string to inspect. - * @returns {boolean} Returns `true` if a word is found, else `false`. - */ - function hasUnicodeWord(string) { - return reHasUnicodeWord.test(string); - } - - /** - * Converts `iterator` to an array. - * - * @private - * @param {Object} iterator The iterator to convert. - * @returns {Array} Returns the converted array. - */ - function iteratorToArray(iterator) { - var data, - result = []; - - while (!(data = iterator.next()).done) { - result.push(data.value); - } - return result; - } - - /** - * Converts `map` to its key-value pairs. - * - * @private - * @param {Object} map The map to convert. - * @returns {Array} Returns the key-value pairs. - */ - function mapToArray(map) { - var index = -1, - result = Array(map.size); - - map.forEach(function(value, key) { - result[++index] = [key, value]; - }); - return result; - } - - /** - * Creates a unary function that invokes `func` with its argument transformed. - * - * @private - * @param {Function} func The function to wrap. - * @param {Function} transform The argument transform. - * @returns {Function} Returns the new function. - */ - function overArg(func, transform) { - return function(arg) { - return func(transform(arg)); - }; - } - - /** - * Replaces all `placeholder` elements in `array` with an internal placeholder - * and returns an array of their indexes. - * - * @private - * @param {Array} array The array to modify. - * @param {*} placeholder The placeholder to replace. - * @returns {Array} Returns the new array of placeholder indexes. - */ - function replaceHolders(array, placeholder) { - var index = -1, - length = array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value === placeholder || value === PLACEHOLDER) { - array[index] = PLACEHOLDER; - result[resIndex++] = index; - } - } - return result; - } - - /** - * Converts `set` to an array of its values. - * - * @private - * @param {Object} set The set to convert. - * @returns {Array} Returns the values. - */ - function setToArray(set) { - var index = -1, - result = Array(set.size); - - set.forEach(function(value) { - result[++index] = value; - }); - return result; - } - - /** - * Converts `set` to its value-value pairs. - * - * @private - * @param {Object} set The set to convert. - * @returns {Array} Returns the value-value pairs. - */ - function setToPairs(set) { - var index = -1, - result = Array(set.size); - - set.forEach(function(value) { - result[++index] = [value, value]; - }); - return result; - } - - /** - * A specialized version of `_.indexOf` which performs strict equality - * comparisons of values, i.e. `===`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function strictIndexOf(array, value, fromIndex) { - var index = fromIndex - 1, - length = array.length; - - while (++index < length) { - if (array[index] === value) { - return index; - } - } - return -1; - } - - /** - * A specialized version of `_.lastIndexOf` which performs strict equality - * comparisons of values, i.e. `===`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function strictLastIndexOf(array, value, fromIndex) { - var index = fromIndex + 1; - while (index--) { - if (array[index] === value) { - return index; - } - } - return index; - } - - /** - * Gets the number of symbols in `string`. - * - * @private - * @param {string} string The string to inspect. - * @returns {number} Returns the string size. - */ - function stringSize(string) { - return hasUnicode(string) - ? unicodeSize(string) - : asciiSize(string); - } - - /** - * Converts `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function stringToArray(string) { - return hasUnicode(string) - ? unicodeToArray(string) - : asciiToArray(string); - } - - /** - * Used by `_.unescape` to convert HTML entities to characters. - * - * @private - * @param {string} chr The matched character to unescape. - * @returns {string} Returns the unescaped character. - */ - var unescapeHtmlChar = basePropertyOf(htmlUnescapes); - - /** - * Gets the size of a Unicode `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - function unicodeSize(string) { - var result = reUnicode.lastIndex = 0; - while (reUnicode.test(string)) { - ++result; - } - return result; - } - - /** - * Converts a Unicode `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function unicodeToArray(string) { - return string.match(reUnicode) || []; - } - - /** - * Splits a Unicode `string` into an array of its words. - * - * @private - * @param {string} The string to inspect. - * @returns {Array} Returns the words of `string`. - */ - function unicodeWords(string) { - return string.match(reUnicodeWord) || []; - } - - /*--------------------------------------------------------------------------*/ - - /** - * Create a new pristine `lodash` function using the `context` object. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Util - * @param {Object} [context=root] The context object. - * @returns {Function} Returns a new `lodash` function. - * @example - * - * _.mixin({ 'foo': _.constant('foo') }); - * - * var lodash = _.runInContext(); - * lodash.mixin({ 'bar': lodash.constant('bar') }); - * - * _.isFunction(_.foo); - * // => true - * _.isFunction(_.bar); - * // => false - * - * lodash.isFunction(lodash.foo); - * // => false - * lodash.isFunction(lodash.bar); - * // => true - * - * // Create a suped-up `defer` in Node.js. - * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer; - */ - var runInContext = (function runInContext(context) { - context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps)); - - /** Built-in constructor references. */ - var Array = context.Array, - Date = context.Date, - Error = context.Error, - Function = context.Function, - Math = context.Math, - Object = context.Object, - RegExp = context.RegExp, - String = context.String, - TypeError = context.TypeError; - - /** Used for built-in method references. */ - var arrayProto = Array.prototype, - funcProto = Function.prototype, - objectProto = Object.prototype; - - /** Used to detect overreaching core-js shims. */ - var coreJsData = context['__core-js_shared__']; - - /** Used to resolve the decompiled source of functions. */ - var funcToString = funcProto.toString; - - /** Used to check objects for own properties. */ - var hasOwnProperty = objectProto.hasOwnProperty; - - /** Used to generate unique IDs. */ - var idCounter = 0; - - /** Used to detect methods masquerading as native. */ - var maskSrcKey = (function() { - var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); - return uid ? ('Symbol(src)_1.' + uid) : ''; - }()); - - /** - * Used to resolve the - * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) - * of values. - */ - var nativeObjectToString = objectProto.toString; - - /** Used to infer the `Object` constructor. */ - var objectCtorString = funcToString.call(Object); - - /** Used to restore the original `_` reference in `_.noConflict`. */ - var oldDash = root._; - - /** Used to detect if a method is native. */ - var reIsNative = RegExp('^' + - funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') - .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' - ); - - /** Built-in value references. */ - var Buffer = moduleExports ? context.Buffer : undefined, - Symbol = context.Symbol, - Uint8Array = context.Uint8Array, - allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, - getPrototype = overArg(Object.getPrototypeOf, Object), - objectCreate = Object.create, - propertyIsEnumerable = objectProto.propertyIsEnumerable, - splice = arrayProto.splice, - spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, - symIterator = Symbol ? Symbol.iterator : undefined, - symToStringTag = Symbol ? Symbol.toStringTag : undefined; - - var defineProperty = (function() { - try { - var func = getNative(Object, 'defineProperty'); - func({}, '', {}); - return func; - } catch (e) {} - }()); - - /** Mocked built-ins. */ - var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout, - ctxNow = Date && Date.now !== root.Date.now && Date.now, - ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout; - - /* Built-in method references for those with the same name as other `lodash` methods. */ - var nativeCeil = Math.ceil, - nativeFloor = Math.floor, - nativeGetSymbols = Object.getOwnPropertySymbols, - nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, - nativeIsFinite = context.isFinite, - nativeJoin = arrayProto.join, - nativeKeys = overArg(Object.keys, Object), - nativeMax = Math.max, - nativeMin = Math.min, - nativeNow = Date.now, - nativeParseInt = context.parseInt, - nativeRandom = Math.random, - nativeReverse = arrayProto.reverse; - - /* Built-in method references that are verified to be native. */ - var DataView = getNative(context, 'DataView'), - Map = getNative(context, 'Map'), - Promise = getNative(context, 'Promise'), - Set = getNative(context, 'Set'), - WeakMap = getNative(context, 'WeakMap'), - nativeCreate = getNative(Object, 'create'); - - /** Used to store function metadata. */ - var metaMap = WeakMap && new WeakMap; - - /** Used to lookup unminified function names. */ - var realNames = {}; - - /** Used to detect maps, sets, and weakmaps. */ - var dataViewCtorString = toSource(DataView), - mapCtorString = toSource(Map), - promiseCtorString = toSource(Promise), - setCtorString = toSource(Set), - weakMapCtorString = toSource(WeakMap); - - /** Used to convert symbols to primitives and strings. */ - var symbolProto = Symbol ? Symbol.prototype : undefined, - symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, - symbolToString = symbolProto ? symbolProto.toString : undefined; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` object which wraps `value` to enable implicit method - * chain sequences. Methods that operate on and return arrays, collections, - * and functions can be chained together. Methods that retrieve a single value - * or may return a primitive value will automatically end the chain sequence - * and return the unwrapped value. Otherwise, the value must be unwrapped - * with `_#value`. - * - * Explicit chain sequences, which must be unwrapped with `_#value`, may be - * enabled using `_.chain`. - * - * The execution of chained methods is lazy, that is, it's deferred until - * `_#value` is implicitly or explicitly called. - * - * Lazy evaluation allows several methods to support shortcut fusion. - * Shortcut fusion is an optimization to merge iteratee calls; this avoids - * the creation of intermediate arrays and can greatly reduce the number of - * iteratee executions. Sections of a chain sequence qualify for shortcut - * fusion if the section is applied to an array and iteratees accept only - * one argument. The heuristic for whether a section qualifies for shortcut - * fusion is subject to change. - * - * Chaining is supported in custom builds as long as the `_#value` method is - * directly or indirectly included in the build. - * - * In addition to lodash methods, wrappers have `Array` and `String` methods. - * - * The wrapper `Array` methods are: - * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` - * - * The wrapper `String` methods are: - * `replace` and `split` - * - * The wrapper methods that support shortcut fusion are: - * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, - * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, - * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` - * - * The chainable wrapper methods are: - * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, - * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, - * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, - * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, - * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, - * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, - * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, - * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, - * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, - * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, - * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, - * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, - * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, - * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, - * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, - * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, - * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, - * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, - * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, - * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, - * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, - * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, - * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, - * `zipObject`, `zipObjectDeep`, and `zipWith` - * - * The wrapper methods that are **not** chainable by default are: - * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, - * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, - * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, - * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, - * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, - * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, - * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, - * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, - * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, - * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, - * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, - * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, - * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, - * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, - * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, - * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, - * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, - * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, - * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, - * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, - * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, - * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, - * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, - * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, - * `upperFirst`, `value`, and `words` - * - * @name _ - * @constructor - * @category Seq - * @param {*} value The value to wrap in a `lodash` instance. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2, 3]); - * - * // Returns an unwrapped value. - * wrapped.reduce(_.add); - * // => 6 - * - * // Returns a wrapped value. - * var squares = wrapped.map(square); - * - * _.isArray(squares); - * // => false - * - * _.isArray(squares.value()); - * // => true - */ - function lodash(value) { - if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { - if (value instanceof LodashWrapper) { - return value; - } - if (hasOwnProperty.call(value, '__wrapped__')) { - return wrapperClone(value); - } - } - return new LodashWrapper(value); - } - - /** - * The base implementation of `_.create` without support for assigning - * properties to the created object. - * - * @private - * @param {Object} proto The object to inherit from. - * @returns {Object} Returns the new object. - */ - var baseCreate = (function() { - function object() {} - return function(proto) { - if (!isObject(proto)) { - return {}; - } - if (objectCreate) { - return objectCreate(proto); - } - object.prototype = proto; - var result = new object; - object.prototype = undefined; - return result; - }; - }()); - - /** - * The function whose prototype chain sequence wrappers inherit from. - * - * @private - */ - function baseLodash() { - // No operation performed. - } - - /** - * The base constructor for creating `lodash` wrapper objects. - * - * @private - * @param {*} value The value to wrap. - * @param {boolean} [chainAll] Enable explicit method chain sequences. - */ - function LodashWrapper(value, chainAll) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__chain__ = !!chainAll; - this.__index__ = 0; - this.__values__ = undefined; - } - - /** - * By default, the template delimiters used by lodash are like those in - * embedded Ruby (ERB) as well as ES2015 template strings. Change the - * following template settings to use alternative delimiters. - * - * @static - * @memberOf _ - * @type {Object} - */ - lodash.templateSettings = { - - /** - * Used to detect `data` property values to be HTML-escaped. - * - * @memberOf _.templateSettings - * @type {RegExp} - */ - 'escape': reEscape, - - /** - * Used to detect code to be evaluated. - * - * @memberOf _.templateSettings - * @type {RegExp} - */ - 'evaluate': reEvaluate, - - /** - * Used to detect `data` property values to inject. - * - * @memberOf _.templateSettings - * @type {RegExp} - */ - 'interpolate': reInterpolate, - - /** - * Used to reference the data object in the template text. - * - * @memberOf _.templateSettings - * @type {string} - */ - 'variable': '', - - /** - * Used to import variables into the compiled template. - * - * @memberOf _.templateSettings - * @type {Object} - */ - 'imports': { - - /** - * A reference to the `lodash` function. - * - * @memberOf _.templateSettings.imports - * @type {Function} - */ - '_': lodash - } - }; - - // Ensure wrappers are instances of `baseLodash`. - lodash.prototype = baseLodash.prototype; - lodash.prototype.constructor = lodash; - - LodashWrapper.prototype = baseCreate(baseLodash.prototype); - LodashWrapper.prototype.constructor = LodashWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. - * - * @private - * @constructor - * @param {*} value The value to wrap. - */ - function LazyWrapper(value) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__dir__ = 1; - this.__filtered__ = false; - this.__iteratees__ = []; - this.__takeCount__ = MAX_ARRAY_LENGTH; - this.__views__ = []; - } - - /** - * Creates a clone of the lazy wrapper object. - * - * @private - * @name clone - * @memberOf LazyWrapper - * @returns {Object} Returns the cloned `LazyWrapper` object. - */ - function lazyClone() { - var result = new LazyWrapper(this.__wrapped__); - result.__actions__ = copyArray(this.__actions__); - result.__dir__ = this.__dir__; - result.__filtered__ = this.__filtered__; - result.__iteratees__ = copyArray(this.__iteratees__); - result.__takeCount__ = this.__takeCount__; - result.__views__ = copyArray(this.__views__); - return result; - } - - /** - * Reverses the direction of lazy iteration. - * - * @private - * @name reverse - * @memberOf LazyWrapper - * @returns {Object} Returns the new reversed `LazyWrapper` object. - */ - function lazyReverse() { - if (this.__filtered__) { - var result = new LazyWrapper(this); - result.__dir__ = -1; - result.__filtered__ = true; - } else { - result = this.clone(); - result.__dir__ *= -1; - } - return result; - } - - /** - * Extracts the unwrapped value from its lazy wrapper. - * - * @private - * @name value - * @memberOf LazyWrapper - * @returns {*} Returns the unwrapped value. - */ - function lazyValue() { - var array = this.__wrapped__.value(), - dir = this.__dir__, - isArr = isArray(array), - isRight = dir < 0, - arrLength = isArr ? array.length : 0, - view = getView(0, arrLength, this.__views__), - start = view.start, - end = view.end, - length = end - start, - index = isRight ? end : (start - 1), - iteratees = this.__iteratees__, - iterLength = iteratees.length, - resIndex = 0, - takeCount = nativeMin(length, this.__takeCount__); - - if (!isArr || (!isRight && arrLength == length && takeCount == length)) { - return baseWrapperValue(array, this.__actions__); - } - var result = []; - - outer: - while (length-- && resIndex < takeCount) { - index += dir; - - var iterIndex = -1, - value = array[index]; - - while (++iterIndex < iterLength) { - var data = iteratees[iterIndex], - iteratee = data.iteratee, - type = data.type, - computed = iteratee(value); - - if (type == LAZY_MAP_FLAG) { - value = computed; - } else if (!computed) { - if (type == LAZY_FILTER_FLAG) { - continue outer; - } else { - break outer; - } - } - } - result[resIndex++] = value; - } - return result; - } - - // Ensure `LazyWrapper` is an instance of `baseLodash`. - LazyWrapper.prototype = baseCreate(baseLodash.prototype); - LazyWrapper.prototype.constructor = LazyWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a hash object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Hash(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the hash. - * - * @private - * @name clear - * @memberOf Hash - */ - function hashClear() { - this.__data__ = nativeCreate ? nativeCreate(null) : {}; - this.size = 0; - } - - /** - * Removes `key` and its value from the hash. - * - * @private - * @name delete - * @memberOf Hash - * @param {Object} hash The hash to modify. - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function hashDelete(key) { - var result = this.has(key) && delete this.__data__[key]; - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the hash value for `key`. - * - * @private - * @name get - * @memberOf Hash - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function hashGet(key) { - var data = this.__data__; - if (nativeCreate) { - var result = data[key]; - return result === HASH_UNDEFINED ? undefined : result; - } - return hasOwnProperty.call(data, key) ? data[key] : undefined; - } - - /** - * Checks if a hash value for `key` exists. - * - * @private - * @name has - * @memberOf Hash - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function hashHas(key) { - var data = this.__data__; - return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); - } - - /** - * Sets the hash `key` to `value`. - * - * @private - * @name set - * @memberOf Hash - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the hash instance. - */ - function hashSet(key, value) { - var data = this.__data__; - this.size += this.has(key) ? 0 : 1; - data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; - return this; - } - - // Add methods to `Hash`. - Hash.prototype.clear = hashClear; - Hash.prototype['delete'] = hashDelete; - Hash.prototype.get = hashGet; - Hash.prototype.has = hashHas; - Hash.prototype.set = hashSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an list cache object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function ListCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the list cache. - * - * @private - * @name clear - * @memberOf ListCache - */ - function listCacheClear() { - this.__data__ = []; - this.size = 0; - } - - /** - * Removes `key` and its value from the list cache. - * - * @private - * @name delete - * @memberOf ListCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function listCacheDelete(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - return false; - } - var lastIndex = data.length - 1; - if (index == lastIndex) { - data.pop(); - } else { - splice.call(data, index, 1); - } - --this.size; - return true; - } - - /** - * Gets the list cache value for `key`. - * - * @private - * @name get - * @memberOf ListCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function listCacheGet(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - return index < 0 ? undefined : data[index][1]; - } - - /** - * Checks if a list cache value for `key` exists. - * - * @private - * @name has - * @memberOf ListCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function listCacheHas(key) { - return assocIndexOf(this.__data__, key) > -1; - } - - /** - * Sets the list cache `key` to `value`. - * - * @private - * @name set - * @memberOf ListCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the list cache instance. - */ - function listCacheSet(key, value) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - ++this.size; - data.push([key, value]); - } else { - data[index][1] = value; - } - return this; - } - - // Add methods to `ListCache`. - ListCache.prototype.clear = listCacheClear; - ListCache.prototype['delete'] = listCacheDelete; - ListCache.prototype.get = listCacheGet; - ListCache.prototype.has = listCacheHas; - ListCache.prototype.set = listCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a map cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function MapCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the map. - * - * @private - * @name clear - * @memberOf MapCache - */ - function mapCacheClear() { - this.size = 0; - this.__data__ = { - 'hash': new Hash, - 'map': new (Map || ListCache), - 'string': new Hash - }; - } - - /** - * Removes `key` and its value from the map. - * - * @private - * @name delete - * @memberOf MapCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function mapCacheDelete(key) { - var result = getMapData(this, key)['delete'](key); - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the map value for `key`. - * - * @private - * @name get - * @memberOf MapCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function mapCacheGet(key) { - return getMapData(this, key).get(key); - } - - /** - * Checks if a map value for `key` exists. - * - * @private - * @name has - * @memberOf MapCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function mapCacheHas(key) { - return getMapData(this, key).has(key); - } - - /** - * Sets the map `key` to `value`. - * - * @private - * @name set - * @memberOf MapCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the map cache instance. - */ - function mapCacheSet(key, value) { - var data = getMapData(this, key), - size = data.size; - - data.set(key, value); - this.size += data.size == size ? 0 : 1; - return this; - } - - // Add methods to `MapCache`. - MapCache.prototype.clear = mapCacheClear; - MapCache.prototype['delete'] = mapCacheDelete; - MapCache.prototype.get = mapCacheGet; - MapCache.prototype.has = mapCacheHas; - MapCache.prototype.set = mapCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * - * Creates an array cache object to store unique values. - * - * @private - * @constructor - * @param {Array} [values] The values to cache. - */ - function SetCache(values) { - var index = -1, - length = values == null ? 0 : values.length; - - this.__data__ = new MapCache; - while (++index < length) { - this.add(values[index]); - } - } - - /** - * Adds `value` to the array cache. - * - * @private - * @name add - * @memberOf SetCache - * @alias push - * @param {*} value The value to cache. - * @returns {Object} Returns the cache instance. - */ - function setCacheAdd(value) { - this.__data__.set(value, HASH_UNDEFINED); - return this; - } - - /** - * Checks if `value` is in the array cache. - * - * @private - * @name has - * @memberOf SetCache - * @param {*} value The value to search for. - * @returns {number} Returns `true` if `value` is found, else `false`. - */ - function setCacheHas(value) { - return this.__data__.has(value); - } - - // Add methods to `SetCache`. - SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; - SetCache.prototype.has = setCacheHas; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a stack cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Stack(entries) { - var data = this.__data__ = new ListCache(entries); - this.size = data.size; - } - - /** - * Removes all key-value entries from the stack. - * - * @private - * @name clear - * @memberOf Stack - */ - function stackClear() { - this.__data__ = new ListCache; - this.size = 0; - } - - /** - * Removes `key` and its value from the stack. - * - * @private - * @name delete - * @memberOf Stack - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function stackDelete(key) { - var data = this.__data__, - result = data['delete'](key); - - this.size = data.size; - return result; - } - - /** - * Gets the stack value for `key`. - * - * @private - * @name get - * @memberOf Stack - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function stackGet(key) { - return this.__data__.get(key); - } - - /** - * Checks if a stack value for `key` exists. - * - * @private - * @name has - * @memberOf Stack - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function stackHas(key) { - return this.__data__.has(key); - } - - /** - * Sets the stack `key` to `value`. - * - * @private - * @name set - * @memberOf Stack - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the stack cache instance. - */ - function stackSet(key, value) { - var data = this.__data__; - if (data instanceof ListCache) { - var pairs = data.__data__; - if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { - pairs.push([key, value]); - this.size = ++data.size; - return this; - } - data = this.__data__ = new MapCache(pairs); - } - data.set(key, value); - this.size = data.size; - return this; - } - - // Add methods to `Stack`. - Stack.prototype.clear = stackClear; - Stack.prototype['delete'] = stackDelete; - Stack.prototype.get = stackGet; - Stack.prototype.has = stackHas; - Stack.prototype.set = stackSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array of the enumerable property names of the array-like `value`. - * - * @private - * @param {*} value The value to query. - * @param {boolean} inherited Specify returning inherited property names. - * @returns {Array} Returns the array of property names. - */ - function arrayLikeKeys(value, inherited) { - var isArr = isArray(value), - isArg = !isArr && isArguments(value), - isBuff = !isArr && !isArg && isBuffer(value), - isType = !isArr && !isArg && !isBuff && isTypedArray(value), - skipIndexes = isArr || isArg || isBuff || isType, - result = skipIndexes ? baseTimes(value.length, String) : [], - length = result.length; - - for (var key in value) { - if ((inherited || hasOwnProperty.call(value, key)) && - !(skipIndexes && ( - // Safari 9 has enumerable `arguments.length` in strict mode. - key == 'length' || - // Node.js 0.10 has enumerable non-index properties on buffers. - (isBuff && (key == 'offset' || key == 'parent')) || - // PhantomJS 2 has enumerable non-index properties on typed arrays. - (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || - // Skip index properties. - isIndex(key, length) - ))) { - result.push(key); - } - } - return result; - } - - /** - * A specialized version of `_.sample` for arrays. - * - * @private - * @param {Array} array The array to sample. - * @returns {*} Returns the random element. - */ - function arraySample(array) { - var length = array.length; - return length ? array[baseRandom(0, length - 1)] : undefined; - } - - /** - * A specialized version of `_.sampleSize` for arrays. - * - * @private - * @param {Array} array The array to sample. - * @param {number} n The number of elements to sample. - * @returns {Array} Returns the random elements. - */ - function arraySampleSize(array, n) { - return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length)); - } - - /** - * A specialized version of `_.shuffle` for arrays. - * - * @private - * @param {Array} array The array to shuffle. - * @returns {Array} Returns the new shuffled array. - */ - function arrayShuffle(array) { - return shuffleSelf(copyArray(array)); - } - - /** - * This function is like `assignValue` except that it doesn't assign - * `undefined` values. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignMergeValue(object, key, value) { - if ((value !== undefined && !eq(object[key], value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Assigns `value` to `key` of `object` if the existing value is not equivalent - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignValue(object, key, value) { - var objValue = object[key]; - if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Gets the index at which the `key` is found in `array` of key-value pairs. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} key The key to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function assocIndexOf(array, key) { - var length = array.length; - while (length--) { - if (eq(array[length][0], key)) { - return length; - } - } - return -1; - } - - /** - * Aggregates elements of `collection` on `accumulator` with keys transformed - * by `iteratee` and values set by `setter`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function baseAggregator(collection, setter, iteratee, accumulator) { - baseEach(collection, function(value, key, collection) { - setter(accumulator, value, iteratee(value), collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.assign` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssign(object, source) { - return object && copyObject(source, keys(source), object); - } - - /** - * The base implementation of `_.assignIn` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssignIn(object, source) { - return object && copyObject(source, keysIn(source), object); - } - - /** - * The base implementation of `assignValue` and `assignMergeValue` without - * value checks. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function baseAssignValue(object, key, value) { - if (key == '__proto__' && defineProperty) { - defineProperty(object, key, { - 'configurable': true, - 'enumerable': true, - 'value': value, - 'writable': true - }); - } else { - object[key] = value; - } - } - - /** - * The base implementation of `_.at` without support for individual paths. - * - * @private - * @param {Object} object The object to iterate over. - * @param {string[]} paths The property paths to pick. - * @returns {Array} Returns the picked elements. - */ - function baseAt(object, paths) { - var index = -1, - length = paths.length, - result = Array(length), - skip = object == null; - - while (++index < length) { - result[index] = skip ? undefined : get(object, paths[index]); - } - return result; - } - - /** - * The base implementation of `_.clamp` which doesn't coerce arguments. - * - * @private - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - */ - function baseClamp(number, lower, upper) { - if (number === number) { - if (upper !== undefined) { - number = number <= upper ? number : upper; - } - if (lower !== undefined) { - number = number >= lower ? number : lower; - } - } - return number; - } - - /** - * The base implementation of `_.clone` and `_.cloneDeep` which tracks - * traversed objects. - * - * @private - * @param {*} value The value to clone. - * @param {boolean} bitmask The bitmask flags. - * 1 - Deep clone - * 2 - Flatten inherited properties - * 4 - Clone symbols - * @param {Function} [customizer] The function to customize cloning. - * @param {string} [key] The key of `value`. - * @param {Object} [object] The parent object of `value`. - * @param {Object} [stack] Tracks traversed objects and their clone counterparts. - * @returns {*} Returns the cloned value. - */ - function baseClone(value, bitmask, customizer, key, object, stack) { - var result, - isDeep = bitmask & CLONE_DEEP_FLAG, - isFlat = bitmask & CLONE_FLAT_FLAG, - isFull = bitmask & CLONE_SYMBOLS_FLAG; - - if (customizer) { - result = object ? customizer(value, key, object, stack) : customizer(value); - } - if (result !== undefined) { - return result; - } - if (!isObject(value)) { - return value; - } - var isArr = isArray(value); - if (isArr) { - result = initCloneArray(value); - if (!isDeep) { - return copyArray(value, result); - } - } else { - var tag = getTag(value), - isFunc = tag == funcTag || tag == genTag; - - if (isBuffer(value)) { - return cloneBuffer(value, isDeep); - } - if (tag == objectTag || tag == argsTag || (isFunc && !object)) { - result = (isFlat || isFunc) ? {} : initCloneObject(value); - if (!isDeep) { - return isFlat - ? copySymbolsIn(value, baseAssignIn(result, value)) - : copySymbols(value, baseAssign(result, value)); - } - } else { - if (!cloneableTags[tag]) { - return object ? value : {}; - } - result = initCloneByTag(value, tag, isDeep); - } - } - // Check for circular references and return its corresponding clone. - stack || (stack = new Stack); - var stacked = stack.get(value); - if (stacked) { - return stacked; - } - stack.set(value, result); - - if (isSet(value)) { - value.forEach(function(subValue) { - result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); - }); - } else if (isMap(value)) { - value.forEach(function(subValue, key) { - result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - } - - var keysFunc = isFull - ? (isFlat ? getAllKeysIn : getAllKeys) - : (isFlat ? keysIn : keys); - - var props = isArr ? undefined : keysFunc(value); - arrayEach(props || value, function(subValue, key) { - if (props) { - key = subValue; - subValue = value[key]; - } - // Recursively populate clone (susceptible to call stack limits). - assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - return result; - } - - /** - * The base implementation of `_.conforms` which doesn't clone `source`. - * - * @private - * @param {Object} source The object of property predicates to conform to. - * @returns {Function} Returns the new spec function. - */ - function baseConforms(source) { - var props = keys(source); - return function(object) { - return baseConformsTo(object, source, props); - }; - } - - /** - * The base implementation of `_.conformsTo` which accepts `props` to check. - * - * @private - * @param {Object} object The object to inspect. - * @param {Object} source The object of property predicates to conform to. - * @returns {boolean} Returns `true` if `object` conforms, else `false`. - */ - function baseConformsTo(object, source, props) { - var length = props.length; - if (object == null) { - return !length; - } - object = Object(object); - while (length--) { - var key = props[length], - predicate = source[key], - value = object[key]; - - if ((value === undefined && !(key in object)) || !predicate(value)) { - return false; - } - } - return true; - } - - /** - * The base implementation of `_.delay` and `_.defer` which accepts `args` - * to provide to `func`. - * - * @private - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {Array} args The arguments to provide to `func`. - * @returns {number|Object} Returns the timer id or timeout object. - */ - function baseDelay(func, wait, args) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return setTimeout(function() { func.apply(undefined, args); }, wait); - } - - /** - * The base implementation of methods like `_.difference` without support - * for excluding multiple arrays or iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Array} values The values to exclude. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - */ - function baseDifference(array, values, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - isCommon = true, - length = array.length, - result = [], - valuesLength = values.length; - - if (!length) { - return result; - } - if (iteratee) { - values = arrayMap(values, baseUnary(iteratee)); - } - if (comparator) { - includes = arrayIncludesWith; - isCommon = false; - } - else if (values.length >= LARGE_ARRAY_SIZE) { - includes = cacheHas; - isCommon = false; - values = new SetCache(values); - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee == null ? value : iteratee(value); - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var valuesIndex = valuesLength; - while (valuesIndex--) { - if (values[valuesIndex] === computed) { - continue outer; - } - } - result.push(value); - } - else if (!includes(values, computed, comparator)) { - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.forEach` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - */ - var baseEach = createBaseEach(baseForOwn); - - /** - * The base implementation of `_.forEachRight` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - */ - var baseEachRight = createBaseEach(baseForOwnRight, true); - - /** - * The base implementation of `_.every` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false` - */ - function baseEvery(collection, predicate) { - var result = true; - baseEach(collection, function(value, index, collection) { - result = !!predicate(value, index, collection); - return result; - }); - return result; - } - - /** - * The base implementation of methods like `_.max` and `_.min` which accepts a - * `comparator` to determine the extremum value. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The iteratee invoked per iteration. - * @param {Function} comparator The comparator used to compare values. - * @returns {*} Returns the extremum value. - */ - function baseExtremum(array, iteratee, comparator) { - var index = -1, - length = array.length; - - while (++index < length) { - var value = array[index], - current = iteratee(value); - - if (current != null && (computed === undefined - ? (current === current && !isSymbol(current)) - : comparator(current, computed) - )) { - var computed = current, - result = value; - } - } - return result; - } - - /** - * The base implementation of `_.fill` without an iteratee call guard. - * - * @private - * @param {Array} array The array to fill. - * @param {*} value The value to fill `array` with. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns `array`. - */ - function baseFill(array, value, start, end) { - var length = array.length; - - start = toInteger(start); - if (start < 0) { - start = -start > length ? 0 : (length + start); - } - end = (end === undefined || end > length) ? length : toInteger(end); - if (end < 0) { - end += length; - } - end = start > end ? 0 : toLength(end); - while (start < end) { - array[start++] = value; - } - return array; - } - - /** - * The base implementation of `_.filter` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function baseFilter(collection, predicate) { - var result = []; - baseEach(collection, function(value, index, collection) { - if (predicate(value, index, collection)) { - result.push(value); - } - }); - return result; - } - - /** - * The base implementation of `_.flatten` with support for restricting flattening. - * - * @private - * @param {Array} array The array to flatten. - * @param {number} depth The maximum recursion depth. - * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. - * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. - * @param {Array} [result=[]] The initial result value. - * @returns {Array} Returns the new flattened array. - */ - function baseFlatten(array, depth, predicate, isStrict, result) { - var index = -1, - length = array.length; - - predicate || (predicate = isFlattenable); - result || (result = []); - - while (++index < length) { - var value = array[index]; - if (depth > 0 && predicate(value)) { - if (depth > 1) { - // Recursively flatten arrays (susceptible to call stack limits). - baseFlatten(value, depth - 1, predicate, isStrict, result); - } else { - arrayPush(result, value); - } - } else if (!isStrict) { - result[result.length] = value; - } - } - return result; - } - - /** - * The base implementation of `baseForOwn` which iterates over `object` - * properties returned by `keysFunc` and invokes `iteratee` for each property. - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseFor = createBaseFor(); - - /** - * This function is like `baseFor` except that it iterates over properties - * in the opposite order. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseForRight = createBaseFor(true); - - /** - * The base implementation of `_.forOwn` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwn(object, iteratee) { - return object && baseFor(object, iteratee, keys); - } - - /** - * The base implementation of `_.forOwnRight` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwnRight(object, iteratee) { - return object && baseForRight(object, iteratee, keys); - } - - /** - * The base implementation of `_.functions` which creates an array of - * `object` function property names filtered from `props`. - * - * @private - * @param {Object} object The object to inspect. - * @param {Array} props The property names to filter. - * @returns {Array} Returns the function names. - */ - function baseFunctions(object, props) { - return arrayFilter(props, function(key) { - return isFunction(object[key]); - }); - } - - /** - * The base implementation of `_.get` without support for default values. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @returns {*} Returns the resolved value. - */ - function baseGet(object, path) { - path = castPath(path, object); - - var index = 0, - length = path.length; - - while (object != null && index < length) { - object = object[toKey(path[index++])]; - } - return (index && index == length) ? object : undefined; - } - - /** - * The base implementation of `getAllKeys` and `getAllKeysIn` which uses - * `keysFunc` and `symbolsFunc` to get the enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Function} keysFunc The function to get the keys of `object`. - * @param {Function} symbolsFunc The function to get the symbols of `object`. - * @returns {Array} Returns the array of property names and symbols. - */ - function baseGetAllKeys(object, keysFunc, symbolsFunc) { - var result = keysFunc(object); - return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); - } - - /** - * The base implementation of `getTag` without fallbacks for buggy environments. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - function baseGetTag(value) { - if (value == null) { - return value === undefined ? undefinedTag : nullTag; - } - return (symToStringTag && symToStringTag in Object(value)) - ? getRawTag(value) - : objectToString(value); - } - - /** - * The base implementation of `_.gt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than `other`, - * else `false`. - */ - function baseGt(value, other) { - return value > other; - } - - /** - * The base implementation of `_.has` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHas(object, key) { - return object != null && hasOwnProperty.call(object, key); - } - - /** - * The base implementation of `_.hasIn` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHasIn(object, key) { - return object != null && key in Object(object); - } - - /** - * The base implementation of `_.inRange` which doesn't coerce arguments. - * - * @private - * @param {number} number The number to check. - * @param {number} start The start of the range. - * @param {number} end The end of the range. - * @returns {boolean} Returns `true` if `number` is in the range, else `false`. - */ - function baseInRange(number, start, end) { - return number >= nativeMin(start, end) && number < nativeMax(start, end); - } - - /** - * The base implementation of methods like `_.intersection`, without support - * for iteratee shorthands, that accepts an array of arrays to inspect. - * - * @private - * @param {Array} arrays The arrays to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of shared values. - */ - function baseIntersection(arrays, iteratee, comparator) { - var includes = comparator ? arrayIncludesWith : arrayIncludes, - length = arrays[0].length, - othLength = arrays.length, - othIndex = othLength, - caches = Array(othLength), - maxLength = Infinity, - result = []; - - while (othIndex--) { - var array = arrays[othIndex]; - if (othIndex && iteratee) { - array = arrayMap(array, baseUnary(iteratee)); - } - maxLength = nativeMin(array.length, maxLength); - caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) - ? new SetCache(othIndex && array) - : undefined; - } - array = arrays[0]; - - var index = -1, - seen = caches[0]; - - outer: - while (++index < length && result.length < maxLength) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (!(seen - ? cacheHas(seen, computed) - : includes(result, computed, comparator) - )) { - othIndex = othLength; - while (--othIndex) { - var cache = caches[othIndex]; - if (!(cache - ? cacheHas(cache, computed) - : includes(arrays[othIndex], computed, comparator)) - ) { - continue outer; - } - } - if (seen) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.invert` and `_.invertBy` which inverts - * `object` with values transformed by `iteratee` and set by `setter`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform values. - * @param {Object} accumulator The initial inverted object. - * @returns {Function} Returns `accumulator`. - */ - function baseInverter(object, setter, iteratee, accumulator) { - baseForOwn(object, function(value, key, object) { - setter(accumulator, iteratee(value), key, object); - }); - return accumulator; - } - - /** - * The base implementation of `_.invoke` without support for individual - * method arguments. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the method to invoke. - * @param {Array} args The arguments to invoke the method with. - * @returns {*} Returns the result of the invoked method. - */ - function baseInvoke(object, path, args) { - path = castPath(path, object); - object = parent(object, path); - var func = object == null ? object : object[toKey(last(path))]; - return func == null ? undefined : apply(func, object, args); - } - - /** - * The base implementation of `_.isArguments`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - */ - function baseIsArguments(value) { - return isObjectLike(value) && baseGetTag(value) == argsTag; - } - - /** - * The base implementation of `_.isArrayBuffer` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. - */ - function baseIsArrayBuffer(value) { - return isObjectLike(value) && baseGetTag(value) == arrayBufferTag; - } - - /** - * The base implementation of `_.isDate` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - */ - function baseIsDate(value) { - return isObjectLike(value) && baseGetTag(value) == dateTag; - } - - /** - * The base implementation of `_.isEqual` which supports partial comparisons - * and tracks traversed objects. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @param {boolean} bitmask The bitmask flags. - * 1 - Unordered comparison - * 2 - Partial comparison - * @param {Function} [customizer] The function to customize comparisons. - * @param {Object} [stack] Tracks traversed `value` and `other` objects. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - */ - function baseIsEqual(value, other, bitmask, customizer, stack) { - if (value === other) { - return true; - } - if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { - return value !== value && other !== other; - } - return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); - } - - /** - * A specialized version of `baseIsEqual` for arrays and objects which performs - * deep comparisons and tracks traversed objects enabling objects with circular - * references to be compared. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} [stack] Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { - var objIsArr = isArray(object), - othIsArr = isArray(other), - objTag = objIsArr ? arrayTag : getTag(object), - othTag = othIsArr ? arrayTag : getTag(other); - - objTag = objTag == argsTag ? objectTag : objTag; - othTag = othTag == argsTag ? objectTag : othTag; - - var objIsObj = objTag == objectTag, - othIsObj = othTag == objectTag, - isSameTag = objTag == othTag; - - if (isSameTag && isBuffer(object)) { - if (!isBuffer(other)) { - return false; - } - objIsArr = true; - objIsObj = false; - } - if (isSameTag && !objIsObj) { - stack || (stack = new Stack); - return (objIsArr || isTypedArray(object)) - ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) - : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); - } - if (!(bitmask & COMPARE_PARTIAL_FLAG)) { - var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), - othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - - if (objIsWrapped || othIsWrapped) { - var objUnwrapped = objIsWrapped ? object.value() : object, - othUnwrapped = othIsWrapped ? other.value() : other; - - stack || (stack = new Stack); - return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); - } - } - if (!isSameTag) { - return false; - } - stack || (stack = new Stack); - return equalObjects(object, other, bitmask, customizer, equalFunc, stack); - } - - /** - * The base implementation of `_.isMap` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - */ - function baseIsMap(value) { - return isObjectLike(value) && getTag(value) == mapTag; - } - - /** - * The base implementation of `_.isMatch` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @param {Array} matchData The property names, values, and compare flags to match. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - */ - function baseIsMatch(object, source, matchData, customizer) { - var index = matchData.length, - length = index, - noCustomizer = !customizer; - - if (object == null) { - return !length; - } - object = Object(object); - while (index--) { - var data = matchData[index]; - if ((noCustomizer && data[2]) - ? data[1] !== object[data[0]] - : !(data[0] in object) - ) { - return false; - } - } - while (++index < length) { - data = matchData[index]; - var key = data[0], - objValue = object[key], - srcValue = data[1]; - - if (noCustomizer && data[2]) { - if (objValue === undefined && !(key in object)) { - return false; - } - } else { - var stack = new Stack; - if (customizer) { - var result = customizer(objValue, srcValue, key, object, source, stack); - } - if (!(result === undefined - ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) - : result - )) { - return false; - } - } - } - return true; - } - - /** - * The base implementation of `_.isNative` without bad shim checks. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a native function, - * else `false`. - */ - function baseIsNative(value) { - if (!isObject(value) || isMasked(value)) { - return false; - } - var pattern = isFunction(value) ? reIsNative : reIsHostCtor; - return pattern.test(toSource(value)); - } - - /** - * The base implementation of `_.isRegExp` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - */ - function baseIsRegExp(value) { - return isObjectLike(value) && baseGetTag(value) == regexpTag; - } - - /** - * The base implementation of `_.isSet` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - */ - function baseIsSet(value) { - return isObjectLike(value) && getTag(value) == setTag; - } - - /** - * The base implementation of `_.isTypedArray` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - */ - function baseIsTypedArray(value) { - return isObjectLike(value) && - isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; - } - - /** - * The base implementation of `_.iteratee`. - * - * @private - * @param {*} [value=_.identity] The value to convert to an iteratee. - * @returns {Function} Returns the iteratee. - */ - function baseIteratee(value) { - // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. - // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. - if (typeof value == 'function') { - return value; - } - if (value == null) { - return identity; - } - if (typeof value == 'object') { - return isArray(value) - ? baseMatchesProperty(value[0], value[1]) - : baseMatches(value); - } - return property(value); - } - - /** - * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeys(object) { - if (!isPrototype(object)) { - return nativeKeys(object); - } - var result = []; - for (var key in Object(object)) { - if (hasOwnProperty.call(object, key) && key != 'constructor') { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeysIn(object) { - if (!isObject(object)) { - return nativeKeysIn(object); - } - var isProto = isPrototype(object), - result = []; - - for (var key in object) { - if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.lt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than `other`, - * else `false`. - */ - function baseLt(value, other) { - return value < other; - } - - /** - * The base implementation of `_.map` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function baseMap(collection, iteratee) { - var index = -1, - result = isArrayLike(collection) ? Array(collection.length) : []; - - baseEach(collection, function(value, key, collection) { - result[++index] = iteratee(value, key, collection); - }); - return result; - } - - /** - * The base implementation of `_.matches` which doesn't clone `source`. - * - * @private - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatches(source) { - var matchData = getMatchData(source); - if (matchData.length == 1 && matchData[0][2]) { - return matchesStrictComparable(matchData[0][0], matchData[0][1]); - } - return function(object) { - return object === source || baseIsMatch(object, source, matchData); - }; - } - - /** - * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. - * - * @private - * @param {string} path The path of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatchesProperty(path, srcValue) { - if (isKey(path) && isStrictComparable(srcValue)) { - return matchesStrictComparable(toKey(path), srcValue); - } - return function(object) { - var objValue = get(object, path); - return (objValue === undefined && objValue === srcValue) - ? hasIn(object, path) - : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); - }; - } - - /** - * The base implementation of `_.merge` without support for multiple sources. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {number} srcIndex The index of `source`. - * @param {Function} [customizer] The function to customize merged values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMerge(object, source, srcIndex, customizer, stack) { - if (object === source) { - return; - } - baseFor(source, function(srcValue, key) { - stack || (stack = new Stack); - if (isObject(srcValue)) { - baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); - } - else { - var newValue = customizer - ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) - : undefined; - - if (newValue === undefined) { - newValue = srcValue; - } - assignMergeValue(object, key, newValue); - } - }, keysIn); - } - - /** - * A specialized version of `baseMerge` for arrays and objects which performs - * deep merges and tracks traversed objects enabling objects with circular - * references to be merged. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {string} key The key of the value to merge. - * @param {number} srcIndex The index of `source`. - * @param {Function} mergeFunc The function to merge values. - * @param {Function} [customizer] The function to customize assigned values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { - var objValue = safeGet(object, key), - srcValue = safeGet(source, key), - stacked = stack.get(srcValue); - - if (stacked) { - assignMergeValue(object, key, stacked); - return; - } - var newValue = customizer - ? customizer(objValue, srcValue, (key + ''), object, source, stack) - : undefined; - - var isCommon = newValue === undefined; - - if (isCommon) { - var isArr = isArray(srcValue), - isBuff = !isArr && isBuffer(srcValue), - isTyped = !isArr && !isBuff && isTypedArray(srcValue); - - newValue = srcValue; - if (isArr || isBuff || isTyped) { - if (isArray(objValue)) { - newValue = objValue; - } - else if (isArrayLikeObject(objValue)) { - newValue = copyArray(objValue); - } - else if (isBuff) { - isCommon = false; - newValue = cloneBuffer(srcValue, true); - } - else if (isTyped) { - isCommon = false; - newValue = cloneTypedArray(srcValue, true); - } - else { - newValue = []; - } - } - else if (isPlainObject(srcValue) || isArguments(srcValue)) { - newValue = objValue; - if (isArguments(objValue)) { - newValue = toPlainObject(objValue); - } - else if (!isObject(objValue) || isFunction(objValue)) { - newValue = initCloneObject(srcValue); - } - } - else { - isCommon = false; - } - } - if (isCommon) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, newValue); - mergeFunc(newValue, srcValue, srcIndex, customizer, stack); - stack['delete'](srcValue); - } - assignMergeValue(object, key, newValue); - } - - /** - * The base implementation of `_.nth` which doesn't coerce arguments. - * - * @private - * @param {Array} array The array to query. - * @param {number} n The index of the element to return. - * @returns {*} Returns the nth element of `array`. - */ - function baseNth(array, n) { - var length = array.length; - if (!length) { - return; - } - n += n < 0 ? length : 0; - return isIndex(n, length) ? array[n] : undefined; - } - - /** - * The base implementation of `_.orderBy` without param guards. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. - * @param {string[]} orders The sort orders of `iteratees`. - * @returns {Array} Returns the new sorted array. - */ - function baseOrderBy(collection, iteratees, orders) { - var index = -1; - iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(getIteratee())); - - var result = baseMap(collection, function(value, key, collection) { - var criteria = arrayMap(iteratees, function(iteratee) { - return iteratee(value); - }); - return { 'criteria': criteria, 'index': ++index, 'value': value }; - }); - - return baseSortBy(result, function(object, other) { - return compareMultiple(object, other, orders); - }); - } - - /** - * The base implementation of `_.pick` without support for individual - * property identifiers. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @returns {Object} Returns the new object. - */ - function basePick(object, paths) { - return basePickBy(object, paths, function(value, path) { - return hasIn(object, path); - }); - } - - /** - * The base implementation of `_.pickBy` without support for iteratee shorthands. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @param {Function} predicate The function invoked per property. - * @returns {Object} Returns the new object. - */ - function basePickBy(object, paths, predicate) { - var index = -1, - length = paths.length, - result = {}; - - while (++index < length) { - var path = paths[index], - value = baseGet(object, path); - - if (predicate(value, path)) { - baseSet(result, castPath(path, object), value); - } - } - return result; - } - - /** - * A specialized version of `baseProperty` which supports deep paths. - * - * @private - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyDeep(path) { - return function(object) { - return baseGet(object, path); - }; - } - - /** - * The base implementation of `_.pullAllBy` without support for iteratee - * shorthands. - * - * @private - * @param {Array} array The array to modify. - * @param {Array} values The values to remove. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns `array`. - */ - function basePullAll(array, values, iteratee, comparator) { - var indexOf = comparator ? baseIndexOfWith : baseIndexOf, - index = -1, - length = values.length, - seen = array; - - if (array === values) { - values = copyArray(values); - } - if (iteratee) { - seen = arrayMap(array, baseUnary(iteratee)); - } - while (++index < length) { - var fromIndex = 0, - value = values[index], - computed = iteratee ? iteratee(value) : value; - - while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) { - if (seen !== array) { - splice.call(seen, fromIndex, 1); - } - splice.call(array, fromIndex, 1); - } - } - return array; - } - - /** - * The base implementation of `_.pullAt` without support for individual - * indexes or capturing the removed elements. - * - * @private - * @param {Array} array The array to modify. - * @param {number[]} indexes The indexes of elements to remove. - * @returns {Array} Returns `array`. - */ - function basePullAt(array, indexes) { - var length = array ? indexes.length : 0, - lastIndex = length - 1; - - while (length--) { - var index = indexes[length]; - if (length == lastIndex || index !== previous) { - var previous = index; - if (isIndex(index)) { - splice.call(array, index, 1); - } else { - baseUnset(array, index); - } - } - } - return array; - } - - /** - * The base implementation of `_.random` without support for returning - * floating-point numbers. - * - * @private - * @param {number} lower The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the random number. - */ - function baseRandom(lower, upper) { - return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); - } - - /** - * The base implementation of `_.range` and `_.rangeRight` which doesn't - * coerce arguments. - * - * @private - * @param {number} start The start of the range. - * @param {number} end The end of the range. - * @param {number} step The value to increment or decrement by. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Array} Returns the range of numbers. - */ - function baseRange(start, end, step, fromRight) { - var index = -1, - length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), - result = Array(length); - - while (length--) { - result[fromRight ? length : ++index] = start; - start += step; - } - return result; - } - - /** - * The base implementation of `_.repeat` which doesn't coerce arguments. - * - * @private - * @param {string} string The string to repeat. - * @param {number} n The number of times to repeat the string. - * @returns {string} Returns the repeated string. - */ - function baseRepeat(string, n) { - var result = ''; - if (!string || n < 1 || n > MAX_SAFE_INTEGER) { - return result; - } - // Leverage the exponentiation by squaring algorithm for a faster repeat. - // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details. - do { - if (n % 2) { - result += string; - } - n = nativeFloor(n / 2); - if (n) { - string += string; - } - } while (n); - - return result; - } - - /** - * The base implementation of `_.rest` which doesn't validate or coerce arguments. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - */ - function baseRest(func, start) { - return setToString(overRest(func, start, identity), func + ''); - } - - /** - * The base implementation of `_.sample`. - * - * @private - * @param {Array|Object} collection The collection to sample. - * @returns {*} Returns the random element. - */ - function baseSample(collection) { - return arraySample(values(collection)); - } - - /** - * The base implementation of `_.sampleSize` without param guards. - * - * @private - * @param {Array|Object} collection The collection to sample. - * @param {number} n The number of elements to sample. - * @returns {Array} Returns the random elements. - */ - function baseSampleSize(collection, n) { - var array = values(collection); - return shuffleSelf(array, baseClamp(n, 0, array.length)); - } - - /** - * The base implementation of `_.set`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @param {Function} [customizer] The function to customize path creation. - * @returns {Object} Returns `object`. - */ - function baseSet(object, path, value, customizer) { - if (!isObject(object)) { - return object; - } - path = castPath(path, object); - - var index = -1, - length = path.length, - lastIndex = length - 1, - nested = object; - - while (nested != null && ++index < length) { - var key = toKey(path[index]), - newValue = value; - - if (index != lastIndex) { - var objValue = nested[key]; - newValue = customizer ? customizer(objValue, key, nested) : undefined; - if (newValue === undefined) { - newValue = isObject(objValue) - ? objValue - : (isIndex(path[index + 1]) ? [] : {}); - } - } - assignValue(nested, key, newValue); - nested = nested[key]; - } - return object; - } - - /** - * The base implementation of `setData` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var baseSetData = !metaMap ? identity : function(func, data) { - metaMap.set(func, data); - return func; - }; - - /** - * The base implementation of `setToString` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var baseSetToString = !defineProperty ? identity : function(func, string) { - return defineProperty(func, 'toString', { - 'configurable': true, - 'enumerable': false, - 'value': constant(string), - 'writable': true - }); - }; - - /** - * The base implementation of `_.shuffle`. - * - * @private - * @param {Array|Object} collection The collection to shuffle. - * @returns {Array} Returns the new shuffled array. - */ - function baseShuffle(collection) { - return shuffleSelf(values(collection)); - } - - /** - * The base implementation of `_.slice` without an iteratee call guard. - * - * @private - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function baseSlice(array, start, end) { - var index = -1, - length = array.length; - - if (start < 0) { - start = -start > length ? 0 : (length + start); - } - end = end > length ? length : end; - if (end < 0) { - end += length; - } - length = start > end ? 0 : ((end - start) >>> 0); - start >>>= 0; - - var result = Array(length); - while (++index < length) { - result[index] = array[index + start]; - } - return result; - } - - /** - * The base implementation of `_.some` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function baseSome(collection, predicate) { - var result; - - baseEach(collection, function(value, index, collection) { - result = predicate(value, index, collection); - return !result; - }); - return !!result; - } - - /** - * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which - * performs a binary search of `array` to determine the index at which `value` - * should be inserted into `array` in order to maintain its sort order. - * - * @private - * @param {Array} array The sorted array to inspect. - * @param {*} value The value to evaluate. - * @param {boolean} [retHighest] Specify returning the highest qualified index. - * @returns {number} Returns the index at which `value` should be inserted - * into `array`. - */ - function baseSortedIndex(array, value, retHighest) { - var low = 0, - high = array == null ? low : array.length; - - if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) { - while (low < high) { - var mid = (low + high) >>> 1, - computed = array[mid]; - - if (computed !== null && !isSymbol(computed) && - (retHighest ? (computed <= value) : (computed < value))) { - low = mid + 1; - } else { - high = mid; - } - } - return high; - } - return baseSortedIndexBy(array, value, identity, retHighest); - } - - /** - * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy` - * which invokes `iteratee` for `value` and each element of `array` to compute - * their sort ranking. The iteratee is invoked with one argument; (value). - * - * @private - * @param {Array} array The sorted array to inspect. - * @param {*} value The value to evaluate. - * @param {Function} iteratee The iteratee invoked per element. - * @param {boolean} [retHighest] Specify returning the highest qualified index. - * @returns {number} Returns the index at which `value` should be inserted - * into `array`. - */ - function baseSortedIndexBy(array, value, iteratee, retHighest) { - value = iteratee(value); - - var low = 0, - high = array == null ? 0 : array.length, - valIsNaN = value !== value, - valIsNull = value === null, - valIsSymbol = isSymbol(value), - valIsUndefined = value === undefined; - - while (low < high) { - var mid = nativeFloor((low + high) / 2), - computed = iteratee(array[mid]), - othIsDefined = computed !== undefined, - othIsNull = computed === null, - othIsReflexive = computed === computed, - othIsSymbol = isSymbol(computed); - - if (valIsNaN) { - var setLow = retHighest || othIsReflexive; - } else if (valIsUndefined) { - setLow = othIsReflexive && (retHighest || othIsDefined); - } else if (valIsNull) { - setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull); - } else if (valIsSymbol) { - setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol); - } else if (othIsNull || othIsSymbol) { - setLow = false; - } else { - setLow = retHighest ? (computed <= value) : (computed < value); - } - if (setLow) { - low = mid + 1; - } else { - high = mid; - } - } - return nativeMin(high, MAX_ARRAY_INDEX); - } - - /** - * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without - * support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - */ - function baseSortedUniq(array, iteratee) { - var index = -1, - length = array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - if (!index || !eq(computed, seen)) { - var seen = computed; - result[resIndex++] = value === 0 ? 0 : value; - } - } - return result; - } - - /** - * The base implementation of `_.toNumber` which doesn't ensure correct - * conversions of binary, hexadecimal, or octal string values. - * - * @private - * @param {*} value The value to process. - * @returns {number} Returns the number. - */ - function baseToNumber(value) { - if (typeof value == 'number') { - return value; - } - if (isSymbol(value)) { - return NAN; - } - return +value; - } - - /** - * The base implementation of `_.toString` which doesn't convert nullish - * values to empty strings. - * - * @private - * @param {*} value The value to process. - * @returns {string} Returns the string. - */ - function baseToString(value) { - // Exit early for strings to avoid a performance hit in some environments. - if (typeof value == 'string') { - return value; - } - if (isArray(value)) { - // Recursively convert values (susceptible to call stack limits). - return arrayMap(value, baseToString) + ''; - } - if (isSymbol(value)) { - return symbolToString ? symbolToString.call(value) : ''; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * The base implementation of `_.uniqBy` without support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new duplicate free array. - */ - function baseUniq(array, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - length = array.length, - isCommon = true, - result = [], - seen = result; - - if (comparator) { - isCommon = false; - includes = arrayIncludesWith; - } - else if (length >= LARGE_ARRAY_SIZE) { - var set = iteratee ? null : createSet(array); - if (set) { - return setToArray(set); - } - isCommon = false; - includes = cacheHas; - seen = new SetCache; - } - else { - seen = iteratee ? [] : result; - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var seenIndex = seen.length; - while (seenIndex--) { - if (seen[seenIndex] === computed) { - continue outer; - } - } - if (iteratee) { - seen.push(computed); - } - result.push(value); - } - else if (!includes(seen, computed, comparator)) { - if (seen !== result) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.unset`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The property path to unset. - * @returns {boolean} Returns `true` if the property is deleted, else `false`. - */ - function baseUnset(object, path) { - path = castPath(path, object); - object = parent(object, path); - return object == null || delete object[toKey(last(path))]; - } - - /** - * The base implementation of `_.update`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to update. - * @param {Function} updater The function to produce the updated value. - * @param {Function} [customizer] The function to customize path creation. - * @returns {Object} Returns `object`. - */ - function baseUpdate(object, path, updater, customizer) { - return baseSet(object, path, updater(baseGet(object, path)), customizer); - } - - /** - * The base implementation of methods like `_.dropWhile` and `_.takeWhile` - * without support for iteratee shorthands. - * - * @private - * @param {Array} array The array to query. - * @param {Function} predicate The function invoked per iteration. - * @param {boolean} [isDrop] Specify dropping elements instead of taking them. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Array} Returns the slice of `array`. - */ - function baseWhile(array, predicate, isDrop, fromRight) { - var length = array.length, - index = fromRight ? length : -1; - - while ((fromRight ? index-- : ++index < length) && - predicate(array[index], index, array)) {} - - return isDrop - ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length)) - : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index)); - } - - /** - * The base implementation of `wrapperValue` which returns the result of - * performing a sequence of actions on the unwrapped `value`, where each - * successive action is supplied the return value of the previous. - * - * @private - * @param {*} value The unwrapped value. - * @param {Array} actions Actions to perform to resolve the unwrapped value. - * @returns {*} Returns the resolved value. - */ - function baseWrapperValue(value, actions) { - var result = value; - if (result instanceof LazyWrapper) { - result = result.value(); - } - return arrayReduce(actions, function(result, action) { - return action.func.apply(action.thisArg, arrayPush([result], action.args)); - }, result); - } - - /** - * The base implementation of methods like `_.xor`, without support for - * iteratee shorthands, that accepts an array of arrays to inspect. - * - * @private - * @param {Array} arrays The arrays to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of values. - */ - function baseXor(arrays, iteratee, comparator) { - var length = arrays.length; - if (length < 2) { - return length ? baseUniq(arrays[0]) : []; - } - var index = -1, - result = Array(length); - - while (++index < length) { - var array = arrays[index], - othIndex = -1; - - while (++othIndex < length) { - if (othIndex != index) { - result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator); - } - } - } - return baseUniq(baseFlatten(result, 1), iteratee, comparator); - } - - /** - * This base implementation of `_.zipObject` which assigns values using `assignFunc`. - * - * @private - * @param {Array} props The property identifiers. - * @param {Array} values The property values. - * @param {Function} assignFunc The function to assign values. - * @returns {Object} Returns the new object. - */ - function baseZipObject(props, values, assignFunc) { - var index = -1, - length = props.length, - valsLength = values.length, - result = {}; - - while (++index < length) { - var value = index < valsLength ? values[index] : undefined; - assignFunc(result, props[index], value); - } - return result; - } - - /** - * Casts `value` to an empty array if it's not an array like object. - * - * @private - * @param {*} value The value to inspect. - * @returns {Array|Object} Returns the cast array-like object. - */ - function castArrayLikeObject(value) { - return isArrayLikeObject(value) ? value : []; - } - - /** - * Casts `value` to `identity` if it's not a function. - * - * @private - * @param {*} value The value to inspect. - * @returns {Function} Returns cast function. - */ - function castFunction(value) { - return typeof value == 'function' ? value : identity; - } - - /** - * Casts `value` to a path array if it's not one. - * - * @private - * @param {*} value The value to inspect. - * @param {Object} [object] The object to query keys on. - * @returns {Array} Returns the cast property path array. - */ - function castPath(value, object) { - if (isArray(value)) { - return value; - } - return isKey(value, object) ? [value] : stringToPath(toString(value)); - } - - /** - * A `baseRest` alias which can be replaced with `identity` by module - * replacement plugins. - * - * @private - * @type {Function} - * @param {Function} func The function to apply a rest parameter to. - * @returns {Function} Returns the new function. - */ - var castRest = baseRest; - - /** - * Casts `array` to a slice if it's needed. - * - * @private - * @param {Array} array The array to inspect. - * @param {number} start The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the cast slice. - */ - function castSlice(array, start, end) { - var length = array.length; - end = end === undefined ? length : end; - return (!start && end >= length) ? array : baseSlice(array, start, end); - } - - /** - * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout). - * - * @private - * @param {number|Object} id The timer id or timeout object of the timer to clear. - */ - var clearTimeout = ctxClearTimeout || function(id) { - return root.clearTimeout(id); - }; - - /** - * Creates a clone of `buffer`. - * - * @private - * @param {Buffer} buffer The buffer to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Buffer} Returns the cloned buffer. - */ - function cloneBuffer(buffer, isDeep) { - if (isDeep) { - return buffer.slice(); - } - var length = buffer.length, - result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); - - buffer.copy(result); - return result; - } - - /** - * Creates a clone of `arrayBuffer`. - * - * @private - * @param {ArrayBuffer} arrayBuffer The array buffer to clone. - * @returns {ArrayBuffer} Returns the cloned array buffer. - */ - function cloneArrayBuffer(arrayBuffer) { - var result = new arrayBuffer.constructor(arrayBuffer.byteLength); - new Uint8Array(result).set(new Uint8Array(arrayBuffer)); - return result; - } - - /** - * Creates a clone of `dataView`. - * - * @private - * @param {Object} dataView The data view to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned data view. - */ - function cloneDataView(dataView, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; - return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); - } - - /** - * Creates a clone of `regexp`. - * - * @private - * @param {Object} regexp The regexp to clone. - * @returns {Object} Returns the cloned regexp. - */ - function cloneRegExp(regexp) { - var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); - result.lastIndex = regexp.lastIndex; - return result; - } - - /** - * Creates a clone of the `symbol` object. - * - * @private - * @param {Object} symbol The symbol object to clone. - * @returns {Object} Returns the cloned symbol object. - */ - function cloneSymbol(symbol) { - return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; - } - - /** - * Creates a clone of `typedArray`. - * - * @private - * @param {Object} typedArray The typed array to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned typed array. - */ - function cloneTypedArray(typedArray, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; - return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); - } - - /** - * Compares values to sort them in ascending order. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {number} Returns the sort order indicator for `value`. - */ - function compareAscending(value, other) { - if (value !== other) { - var valIsDefined = value !== undefined, - valIsNull = value === null, - valIsReflexive = value === value, - valIsSymbol = isSymbol(value); - - var othIsDefined = other !== undefined, - othIsNull = other === null, - othIsReflexive = other === other, - othIsSymbol = isSymbol(other); - - if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || - (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || - (valIsNull && othIsDefined && othIsReflexive) || - (!valIsDefined && othIsReflexive) || - !valIsReflexive) { - return 1; - } - if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || - (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || - (othIsNull && valIsDefined && valIsReflexive) || - (!othIsDefined && valIsReflexive) || - !othIsReflexive) { - return -1; - } - } - return 0; - } - - /** - * Used by `_.orderBy` to compare multiple properties of a value to another - * and stable sort them. - * - * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, - * specify an order of "desc" for descending or "asc" for ascending sort order - * of corresponding values. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {boolean[]|string[]} orders The order to sort by for each property. - * @returns {number} Returns the sort order indicator for `object`. - */ - function compareMultiple(object, other, orders) { - var index = -1, - objCriteria = object.criteria, - othCriteria = other.criteria, - length = objCriteria.length, - ordersLength = orders.length; - - while (++index < length) { - var result = compareAscending(objCriteria[index], othCriteria[index]); - if (result) { - if (index >= ordersLength) { - return result; - } - var order = orders[index]; - return result * (order == 'desc' ? -1 : 1); - } - } - // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications - // that causes it, under certain circumstances, to provide the same value for - // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 - // for more details. - // - // This also ensures a stable sort in V8 and other engines. - // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. - return object.index - other.index; - } - - /** - * Creates an array that is the composition of partially applied arguments, - * placeholders, and provided arguments into a single array of arguments. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to prepend to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgs(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersLength = holders.length, - leftIndex = -1, - leftLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(leftLength + rangeLength), - isUncurried = !isCurried; - - while (++leftIndex < leftLength) { - result[leftIndex] = partials[leftIndex]; - } - while (++argsIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[holders[argsIndex]] = args[argsIndex]; - } - } - while (rangeLength--) { - result[leftIndex++] = args[argsIndex++]; - } - return result; - } - - /** - * This function is like `composeArgs` except that the arguments composition - * is tailored for `_.partialRight`. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to append to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgsRight(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersIndex = -1, - holdersLength = holders.length, - rightIndex = -1, - rightLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(rangeLength + rightLength), - isUncurried = !isCurried; - - while (++argsIndex < rangeLength) { - result[argsIndex] = args[argsIndex]; - } - var offset = argsIndex; - while (++rightIndex < rightLength) { - result[offset + rightIndex] = partials[rightIndex]; - } - while (++holdersIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[offset + holders[holdersIndex]] = args[argsIndex++]; - } - } - return result; - } - - /** - * Copies the values of `source` to `array`. - * - * @private - * @param {Array} source The array to copy values from. - * @param {Array} [array=[]] The array to copy values to. - * @returns {Array} Returns `array`. - */ - function copyArray(source, array) { - var index = -1, - length = source.length; - - array || (array = Array(length)); - while (++index < length) { - array[index] = source[index]; - } - return array; - } - - /** - * Copies properties of `source` to `object`. - * - * @private - * @param {Object} source The object to copy properties from. - * @param {Array} props The property identifiers to copy. - * @param {Object} [object={}] The object to copy properties to. - * @param {Function} [customizer] The function to customize copied values. - * @returns {Object} Returns `object`. - */ - function copyObject(source, props, object, customizer) { - var isNew = !object; - object || (object = {}); - - var index = -1, - length = props.length; - - while (++index < length) { - var key = props[index]; - - var newValue = customizer - ? customizer(object[key], source[key], key, object, source) - : undefined; - - if (newValue === undefined) { - newValue = source[key]; - } - if (isNew) { - baseAssignValue(object, key, newValue); - } else { - assignValue(object, key, newValue); - } - } - return object; - } - - /** - * Copies own symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbols(source, object) { - return copyObject(source, getSymbols(source), object); - } - - /** - * Copies own and inherited symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbolsIn(source, object) { - return copyObject(source, getSymbolsIn(source), object); - } - - /** - * Creates a function like `_.groupBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} [initializer] The accumulator object initializer. - * @returns {Function} Returns the new aggregator function. - */ - function createAggregator(setter, initializer) { - return function(collection, iteratee) { - var func = isArray(collection) ? arrayAggregator : baseAggregator, - accumulator = initializer ? initializer() : {}; - - return func(collection, setter, getIteratee(iteratee, 2), accumulator); - }; - } - - /** - * Creates a function like `_.assign`. - * - * @private - * @param {Function} assigner The function to assign values. - * @returns {Function} Returns the new assigner function. - */ - function createAssigner(assigner) { - return baseRest(function(object, sources) { - var index = -1, - length = sources.length, - customizer = length > 1 ? sources[length - 1] : undefined, - guard = length > 2 ? sources[2] : undefined; - - customizer = (assigner.length > 3 && typeof customizer == 'function') - ? (length--, customizer) - : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - customizer = length < 3 ? undefined : customizer; - length = 1; - } - object = Object(object); - while (++index < length) { - var source = sources[index]; - if (source) { - assigner(object, source, index, customizer); - } - } - return object; - }); - } - - /** - * Creates a `baseEach` or `baseEachRight` function. - * - * @private - * @param {Function} eachFunc The function to iterate over a collection. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseEach(eachFunc, fromRight) { - return function(collection, iteratee) { - if (collection == null) { - return collection; - } - if (!isArrayLike(collection)) { - return eachFunc(collection, iteratee); - } - var length = collection.length, - index = fromRight ? length : -1, - iterable = Object(collection); - - while ((fromRight ? index-- : ++index < length)) { - if (iteratee(iterable[index], index, iterable) === false) { - break; - } - } - return collection; - }; - } - - /** - * Creates a base function for methods like `_.forIn` and `_.forOwn`. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseFor(fromRight) { - return function(object, iteratee, keysFunc) { - var index = -1, - iterable = Object(object), - props = keysFunc(object), - length = props.length; - - while (length--) { - var key = props[fromRight ? length : ++index]; - if (iteratee(iterable[key], key, iterable) === false) { - break; - } - } - return object; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the optional `this` - * binding of `thisArg`. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createBind(func, bitmask, thisArg) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return fn.apply(isBind ? thisArg : this, arguments); - } - return wrapper; - } - - /** - * Creates a function like `_.lowerFirst`. - * - * @private - * @param {string} methodName The name of the `String` case method to use. - * @returns {Function} Returns the new case function. - */ - function createCaseFirst(methodName) { - return function(string) { - string = toString(string); - - var strSymbols = hasUnicode(string) - ? stringToArray(string) - : undefined; - - var chr = strSymbols - ? strSymbols[0] - : string.charAt(0); - - var trailing = strSymbols - ? castSlice(strSymbols, 1).join('') - : string.slice(1); - - return chr[methodName]() + trailing; - }; - } - - /** - * Creates a function like `_.camelCase`. - * - * @private - * @param {Function} callback The function to combine each word. - * @returns {Function} Returns the new compounder function. - */ - function createCompounder(callback) { - return function(string) { - return arrayReduce(words(deburr(string).replace(reApos, '')), callback, ''); - }; - } - - /** - * Creates a function that produces an instance of `Ctor` regardless of - * whether it was invoked as part of a `new` expression or by `call` or `apply`. - * - * @private - * @param {Function} Ctor The constructor to wrap. - * @returns {Function} Returns the new wrapped function. - */ - function createCtor(Ctor) { - return function() { - // Use a `switch` statement to work with class constructors. See - // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist - // for more details. - var args = arguments; - switch (args.length) { - case 0: return new Ctor; - case 1: return new Ctor(args[0]); - case 2: return new Ctor(args[0], args[1]); - case 3: return new Ctor(args[0], args[1], args[2]); - case 4: return new Ctor(args[0], args[1], args[2], args[3]); - case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); - case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); - case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); - } - var thisBinding = baseCreate(Ctor.prototype), - result = Ctor.apply(thisBinding, args); - - // Mimic the constructor's `return` behavior. - // See https://es5.github.io/#x13.2.2 for more details. - return isObject(result) ? result : thisBinding; - }; - } - - /** - * Creates a function that wraps `func` to enable currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {number} arity The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createCurry(func, bitmask, arity) { - var Ctor = createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length, - placeholder = getHolder(wrapper); - - while (index--) { - args[index] = arguments[index]; - } - var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) - ? [] - : replaceHolders(args, placeholder); - - length -= holders.length; - if (length < arity) { - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, undefined, - args, holders, undefined, undefined, arity - length); - } - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return apply(fn, this, args); - } - return wrapper; - } - - /** - * Creates a `_.find` or `_.findLast` function. - * - * @private - * @param {Function} findIndexFunc The function to find the collection index. - * @returns {Function} Returns the new find function. - */ - function createFind(findIndexFunc) { - return function(collection, predicate, fromIndex) { - var iterable = Object(collection); - if (!isArrayLike(collection)) { - var iteratee = getIteratee(predicate, 3); - collection = keys(collection); - predicate = function(key) { return iteratee(iterable[key], key, iterable); }; - } - var index = findIndexFunc(collection, predicate, fromIndex); - return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; - }; - } - - /** - * Creates a `_.flow` or `_.flowRight` function. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new flow function. - */ - function createFlow(fromRight) { - return flatRest(function(funcs) { - var length = funcs.length, - index = length, - prereq = LodashWrapper.prototype.thru; - - if (fromRight) { - funcs.reverse(); - } - while (index--) { - var func = funcs[index]; - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - if (prereq && !wrapper && getFuncName(func) == 'wrapper') { - var wrapper = new LodashWrapper([], true); - } - } - index = wrapper ? index : length; - while (++index < length) { - func = funcs[index]; - - var funcName = getFuncName(func), - data = funcName == 'wrapper' ? getData(func) : undefined; - - if (data && isLaziable(data[0]) && - data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) && - !data[4].length && data[9] == 1 - ) { - wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]); - } else { - wrapper = (func.length == 1 && isLaziable(func)) - ? wrapper[funcName]() - : wrapper.thru(func); - } - } - return function() { - var args = arguments, - value = args[0]; - - if (wrapper && args.length == 1 && isArray(value)) { - return wrapper.plant(value).value(); - } - var index = 0, - result = length ? funcs[index].apply(this, args) : value; - - while (++index < length) { - result = funcs[index].call(this, result); - } - return result; - }; - }); - } - - /** - * Creates a function that wraps `func` to invoke it with optional `this` - * binding of `thisArg`, partial application, and currying. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [partialsRight] The arguments to append to those provided - * to the new function. - * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { - var isAry = bitmask & WRAP_ARY_FLAG, - isBind = bitmask & WRAP_BIND_FLAG, - isBindKey = bitmask & WRAP_BIND_KEY_FLAG, - isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), - isFlip = bitmask & WRAP_FLIP_FLAG, - Ctor = isBindKey ? undefined : createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length; - - while (index--) { - args[index] = arguments[index]; - } - if (isCurried) { - var placeholder = getHolder(wrapper), - holdersCount = countHolders(args, placeholder); - } - if (partials) { - args = composeArgs(args, partials, holders, isCurried); - } - if (partialsRight) { - args = composeArgsRight(args, partialsRight, holdersRight, isCurried); - } - length -= holdersCount; - if (isCurried && length < arity) { - var newHolders = replaceHolders(args, placeholder); - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, thisArg, - args, newHolders, argPos, ary, arity - length - ); - } - var thisBinding = isBind ? thisArg : this, - fn = isBindKey ? thisBinding[func] : func; - - length = args.length; - if (argPos) { - args = reorder(args, argPos); - } else if (isFlip && length > 1) { - args.reverse(); - } - if (isAry && ary < length) { - args.length = ary; - } - if (this && this !== root && this instanceof wrapper) { - fn = Ctor || createCtor(fn); - } - return fn.apply(thisBinding, args); - } - return wrapper; - } - - /** - * Creates a function like `_.invertBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} toIteratee The function to resolve iteratees. - * @returns {Function} Returns the new inverter function. - */ - function createInverter(setter, toIteratee) { - return function(object, iteratee) { - return baseInverter(object, setter, toIteratee(iteratee), {}); - }; - } - - /** - * Creates a function that performs a mathematical operation on two values. - * - * @private - * @param {Function} operator The function to perform the operation. - * @param {number} [defaultValue] The value used for `undefined` arguments. - * @returns {Function} Returns the new mathematical operation function. - */ - function createMathOperation(operator, defaultValue) { - return function(value, other) { - var result; - if (value === undefined && other === undefined) { - return defaultValue; - } - if (value !== undefined) { - result = value; - } - if (other !== undefined) { - if (result === undefined) { - return other; - } - if (typeof value == 'string' || typeof other == 'string') { - value = baseToString(value); - other = baseToString(other); - } else { - value = baseToNumber(value); - other = baseToNumber(other); - } - result = operator(value, other); - } - return result; - }; - } - - /** - * Creates a function like `_.over`. - * - * @private - * @param {Function} arrayFunc The function to iterate over iteratees. - * @returns {Function} Returns the new over function. - */ - function createOver(arrayFunc) { - return flatRest(function(iteratees) { - iteratees = arrayMap(iteratees, baseUnary(getIteratee())); - return baseRest(function(args) { - var thisArg = this; - return arrayFunc(iteratees, function(iteratee) { - return apply(iteratee, thisArg, args); - }); - }); - }); - } - - /** - * Creates the padding for `string` based on `length`. The `chars` string - * is truncated if the number of characters exceeds `length`. - * - * @private - * @param {number} length The padding length. - * @param {string} [chars=' '] The string used as padding. - * @returns {string} Returns the padding for `string`. - */ - function createPadding(length, chars) { - chars = chars === undefined ? ' ' : baseToString(chars); - - var charsLength = chars.length; - if (charsLength < 2) { - return charsLength ? baseRepeat(chars, length) : chars; - } - var result = baseRepeat(chars, nativeCeil(length / stringSize(chars))); - return hasUnicode(chars) - ? castSlice(stringToArray(result), 0, length).join('') - : result.slice(0, length); - } - - /** - * Creates a function that wraps `func` to invoke it with the `this` binding - * of `thisArg` and `partials` prepended to the arguments it receives. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} partials The arguments to prepend to those provided to - * the new function. - * @returns {Function} Returns the new wrapped function. - */ - function createPartial(func, bitmask, thisArg, partials) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var argsIndex = -1, - argsLength = arguments.length, - leftIndex = -1, - leftLength = partials.length, - args = Array(leftLength + argsLength), - fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - - while (++leftIndex < leftLength) { - args[leftIndex] = partials[leftIndex]; - } - while (argsLength--) { - args[leftIndex++] = arguments[++argsIndex]; - } - return apply(fn, isBind ? thisArg : this, args); - } - return wrapper; - } - - /** - * Creates a `_.range` or `_.rangeRight` function. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new range function. - */ - function createRange(fromRight) { - return function(start, end, step) { - if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { - end = step = undefined; - } - // Ensure the sign of `-0` is preserved. - start = toFinite(start); - if (end === undefined) { - end = start; - start = 0; - } else { - end = toFinite(end); - } - step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); - return baseRange(start, end, step, fromRight); - }; - } - - /** - * Creates a function that performs a relational operation on two values. - * - * @private - * @param {Function} operator The function to perform the operation. - * @returns {Function} Returns the new relational operation function. - */ - function createRelationalOperation(operator) { - return function(value, other) { - if (!(typeof value == 'string' && typeof other == 'string')) { - value = toNumber(value); - other = toNumber(other); - } - return operator(value, other); - }; - } - - /** - * Creates a function that wraps `func` to continue currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {Function} wrapFunc The function to create the `func` wrapper. - * @param {*} placeholder The placeholder value. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { - var isCurry = bitmask & WRAP_CURRY_FLAG, - newHolders = isCurry ? holders : undefined, - newHoldersRight = isCurry ? undefined : holders, - newPartials = isCurry ? partials : undefined, - newPartialsRight = isCurry ? undefined : partials; - - bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); - bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); - - if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { - bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); - } - var newData = [ - func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, - newHoldersRight, argPos, ary, arity - ]; - - var result = wrapFunc.apply(undefined, newData); - if (isLaziable(func)) { - setData(result, newData); - } - result.placeholder = placeholder; - return setWrapToString(result, func, bitmask); - } - - /** - * Creates a function like `_.round`. - * - * @private - * @param {string} methodName The name of the `Math` method to use when rounding. - * @returns {Function} Returns the new round function. - */ - function createRound(methodName) { - var func = Math[methodName]; - return function(number, precision) { - number = toNumber(number); - precision = precision == null ? 0 : nativeMin(toInteger(precision), 292); - if (precision && nativeIsFinite(number)) { - // Shift with exponential notation to avoid floating-point issues. - // See [MDN](https://mdn.io/round#Examples) for more details. - var pair = (toString(number) + 'e').split('e'), - value = func(pair[0] + 'e' + (+pair[1] + precision)); - - pair = (toString(value) + 'e').split('e'); - return +(pair[0] + 'e' + (+pair[1] - precision)); - } - return func(number); - }; - } - - /** - * Creates a set object of `values`. - * - * @private - * @param {Array} values The values to add to the set. - * @returns {Object} Returns the new set. - */ - var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { - return new Set(values); - }; - - /** - * Creates a `_.toPairs` or `_.toPairsIn` function. - * - * @private - * @param {Function} keysFunc The function to get the keys of a given object. - * @returns {Function} Returns the new pairs function. - */ - function createToPairs(keysFunc) { - return function(object) { - var tag = getTag(object); - if (tag == mapTag) { - return mapToArray(object); - } - if (tag == setTag) { - return setToPairs(object); - } - return baseToPairs(object, keysFunc(object)); - }; - } - - /** - * Creates a function that either curries or invokes `func` with optional - * `this` binding and partially applied arguments. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. - * 1 - `_.bind` - * 2 - `_.bindKey` - * 4 - `_.curry` or `_.curryRight` of a bound function - * 8 - `_.curry` - * 16 - `_.curryRight` - * 32 - `_.partial` - * 64 - `_.partialRight` - * 128 - `_.rearg` - * 256 - `_.ary` - * 512 - `_.flip` - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to be partially applied. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { - var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; - if (!isBindKey && typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - var length = partials ? partials.length : 0; - if (!length) { - bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); - partials = holders = undefined; - } - ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); - arity = arity === undefined ? arity : toInteger(arity); - length -= holders ? holders.length : 0; - - if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { - var partialsRight = partials, - holdersRight = holders; - - partials = holders = undefined; - } - var data = isBindKey ? undefined : getData(func); - - var newData = [ - func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, - argPos, ary, arity - ]; - - if (data) { - mergeData(newData, data); - } - func = newData[0]; - bitmask = newData[1]; - thisArg = newData[2]; - partials = newData[3]; - holders = newData[4]; - arity = newData[9] = newData[9] === undefined - ? (isBindKey ? 0 : func.length) - : nativeMax(newData[9] - length, 0); - - if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { - bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); - } - if (!bitmask || bitmask == WRAP_BIND_FLAG) { - var result = createBind(func, bitmask, thisArg); - } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { - result = createCurry(func, bitmask, arity); - } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { - result = createPartial(func, bitmask, thisArg, partials); - } else { - result = createHybrid.apply(undefined, newData); - } - var setter = data ? baseSetData : setData; - return setWrapToString(setter(result, newData), func, bitmask); - } - - /** - * Used by `_.defaults` to customize its `_.assignIn` use to assign properties - * of source objects to the destination object for all destination properties - * that resolve to `undefined`. - * - * @private - * @param {*} objValue The destination value. - * @param {*} srcValue The source value. - * @param {string} key The key of the property to assign. - * @param {Object} object The parent object of `objValue`. - * @returns {*} Returns the value to assign. - */ - function customDefaultsAssignIn(objValue, srcValue, key, object) { - if (objValue === undefined || - (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) { - return srcValue; - } - return objValue; - } - - /** - * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source - * objects into destination objects that are passed thru. - * - * @private - * @param {*} objValue The destination value. - * @param {*} srcValue The source value. - * @param {string} key The key of the property to merge. - * @param {Object} object The parent object of `objValue`. - * @param {Object} source The parent object of `srcValue`. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - * @returns {*} Returns the value to assign. - */ - function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { - if (isObject(objValue) && isObject(srcValue)) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, objValue); - baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); - stack['delete'](srcValue); - } - return objValue; - } - - /** - * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain - * objects. - * - * @private - * @param {*} value The value to inspect. - * @param {string} key The key of the property to inspect. - * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. - */ - function customOmitClone(value) { - return isPlainObject(value) ? undefined : value; - } - - /** - * A specialized version of `baseIsEqualDeep` for arrays with support for - * partial deep comparisons. - * - * @private - * @param {Array} array The array to compare. - * @param {Array} other The other array to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `array` and `other` objects. - * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. - */ - function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - arrLength = array.length, - othLength = other.length; - - if (arrLength != othLength && !(isPartial && othLength > arrLength)) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(array); - if (stacked && stack.get(other)) { - return stacked == other; - } - var index = -1, - result = true, - seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; - - stack.set(array, other); - stack.set(other, array); - - // Ignore non-index properties. - while (++index < arrLength) { - var arrValue = array[index], - othValue = other[index]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, arrValue, index, other, array, stack) - : customizer(arrValue, othValue, index, array, other, stack); - } - if (compared !== undefined) { - if (compared) { - continue; - } - result = false; - break; - } - // Recursively compare arrays (susceptible to call stack limits). - if (seen) { - if (!arraySome(other, function(othValue, othIndex) { - if (!cacheHas(seen, othIndex) && - (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { - return seen.push(othIndex); - } - })) { - result = false; - break; - } - } else if (!( - arrValue === othValue || - equalFunc(arrValue, othValue, bitmask, customizer, stack) - )) { - result = false; - break; - } - } - stack['delete'](array); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseIsEqualDeep` for comparing objects of - * the same `toStringTag`. - * - * **Note:** This function only supports comparing values with tags of - * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {string} tag The `toStringTag` of the objects to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { - switch (tag) { - case dataViewTag: - if ((object.byteLength != other.byteLength) || - (object.byteOffset != other.byteOffset)) { - return false; - } - object = object.buffer; - other = other.buffer; - - case arrayBufferTag: - if ((object.byteLength != other.byteLength) || - !equalFunc(new Uint8Array(object), new Uint8Array(other))) { - return false; - } - return true; - - case boolTag: - case dateTag: - case numberTag: - // Coerce booleans to `1` or `0` and dates to milliseconds. - // Invalid dates are coerced to `NaN`. - return eq(+object, +other); - - case errorTag: - return object.name == other.name && object.message == other.message; - - case regexpTag: - case stringTag: - // Coerce regexes to strings and treat strings, primitives and objects, - // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring - // for more details. - return object == (other + ''); - - case mapTag: - var convert = mapToArray; - - case setTag: - var isPartial = bitmask & COMPARE_PARTIAL_FLAG; - convert || (convert = setToArray); - - if (object.size != other.size && !isPartial) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked) { - return stacked == other; - } - bitmask |= COMPARE_UNORDERED_FLAG; - - // Recursively compare objects (susceptible to call stack limits). - stack.set(object, other); - var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); - stack['delete'](object); - return result; - - case symbolTag: - if (symbolValueOf) { - return symbolValueOf.call(object) == symbolValueOf.call(other); - } - } - return false; - } - - /** - * A specialized version of `baseIsEqualDeep` for objects with support for - * partial deep comparisons. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - objProps = getAllKeys(object), - objLength = objProps.length, - othProps = getAllKeys(other), - othLength = othProps.length; - - if (objLength != othLength && !isPartial) { - return false; - } - var index = objLength; - while (index--) { - var key = objProps[index]; - if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { - return false; - } - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked && stack.get(other)) { - return stacked == other; - } - var result = true; - stack.set(object, other); - stack.set(other, object); - - var skipCtor = isPartial; - while (++index < objLength) { - key = objProps[index]; - var objValue = object[key], - othValue = other[key]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, objValue, key, other, object, stack) - : customizer(objValue, othValue, key, object, other, stack); - } - // Recursively compare objects (susceptible to call stack limits). - if (!(compared === undefined - ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) - : compared - )) { - result = false; - break; - } - skipCtor || (skipCtor = key == 'constructor'); - } - if (result && !skipCtor) { - var objCtor = object.constructor, - othCtor = other.constructor; - - // Non `Object` object instances with different constructors are not equal. - if (objCtor != othCtor && - ('constructor' in object && 'constructor' in other) && - !(typeof objCtor == 'function' && objCtor instanceof objCtor && - typeof othCtor == 'function' && othCtor instanceof othCtor)) { - result = false; - } - } - stack['delete'](object); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseRest` which flattens the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @returns {Function} Returns the new function. - */ - function flatRest(func) { - return setToString(overRest(func, undefined, flatten), func + ''); - } - - /** - * Creates an array of own enumerable property names and symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeys(object) { - return baseGetAllKeys(object, keys, getSymbols); - } - - /** - * Creates an array of own and inherited enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeysIn(object) { - return baseGetAllKeys(object, keysIn, getSymbolsIn); - } - - /** - * Gets metadata for `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {*} Returns the metadata for `func`. - */ - var getData = !metaMap ? noop : function(func) { - return metaMap.get(func); - }; - - /** - * Gets the name of `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {string} Returns the function name. - */ - function getFuncName(func) { - var result = (func.name + ''), - array = realNames[result], - length = hasOwnProperty.call(realNames, result) ? array.length : 0; - - while (length--) { - var data = array[length], - otherFunc = data.func; - if (otherFunc == null || otherFunc == func) { - return data.name; - } - } - return result; - } - - /** - * Gets the argument placeholder value for `func`. - * - * @private - * @param {Function} func The function to inspect. - * @returns {*} Returns the placeholder value. - */ - function getHolder(func) { - var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; - return object.placeholder; - } - - /** - * Gets the appropriate "iteratee" function. If `_.iteratee` is customized, - * this function returns the custom method, otherwise it returns `baseIteratee`. - * If arguments are provided, the chosen function is invoked with them and - * its result is returned. - * - * @private - * @param {*} [value] The value to convert to an iteratee. - * @param {number} [arity] The arity of the created iteratee. - * @returns {Function} Returns the chosen function or its result. - */ - function getIteratee() { - var result = lodash.iteratee || iteratee; - result = result === iteratee ? baseIteratee : result; - return arguments.length ? result(arguments[0], arguments[1]) : result; - } - - /** - * Gets the data for `map`. - * - * @private - * @param {Object} map The map to query. - * @param {string} key The reference key. - * @returns {*} Returns the map data. - */ - function getMapData(map, key) { - var data = map.__data__; - return isKeyable(key) - ? data[typeof key == 'string' ? 'string' : 'hash'] - : data.map; - } - - /** - * Gets the property names, values, and compare flags of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the match data of `object`. - */ - function getMatchData(object) { - var result = keys(object), - length = result.length; - - while (length--) { - var key = result[length], - value = object[key]; - - result[length] = [key, value, isStrictComparable(value)]; - } - return result; - } - - /** - * Gets the native function at `key` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the method to get. - * @returns {*} Returns the function if it's native, else `undefined`. - */ - function getNative(object, key) { - var value = getValue(object, key); - return baseIsNative(value) ? value : undefined; - } - - /** - * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the raw `toStringTag`. - */ - function getRawTag(value) { - var isOwn = hasOwnProperty.call(value, symToStringTag), - tag = value[symToStringTag]; - - try { - value[symToStringTag] = undefined; - var unmasked = true; - } catch (e) {} - - var result = nativeObjectToString.call(value); - if (unmasked) { - if (isOwn) { - value[symToStringTag] = tag; - } else { - delete value[symToStringTag]; - } - } - return result; - } - - /** - * Creates an array of the own enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbols = !nativeGetSymbols ? stubArray : function(object) { - if (object == null) { - return []; - } - object = Object(object); - return arrayFilter(nativeGetSymbols(object), function(symbol) { - return propertyIsEnumerable.call(object, symbol); - }); - }; - - /** - * Creates an array of the own and inherited enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { - var result = []; - while (object) { - arrayPush(result, getSymbols(object)); - object = getPrototype(object); - } - return result; - }; - - /** - * Gets the `toStringTag` of `value`. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - var getTag = baseGetTag; - - // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. - if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || - (Map && getTag(new Map) != mapTag) || - (Promise && getTag(Promise.resolve()) != promiseTag) || - (Set && getTag(new Set) != setTag) || - (WeakMap && getTag(new WeakMap) != weakMapTag)) { - getTag = function(value) { - var result = baseGetTag(value), - Ctor = result == objectTag ? value.constructor : undefined, - ctorString = Ctor ? toSource(Ctor) : ''; - - if (ctorString) { - switch (ctorString) { - case dataViewCtorString: return dataViewTag; - case mapCtorString: return mapTag; - case promiseCtorString: return promiseTag; - case setCtorString: return setTag; - case weakMapCtorString: return weakMapTag; - } - } - return result; - }; - } - - /** - * Gets the view, applying any `transforms` to the `start` and `end` positions. - * - * @private - * @param {number} start The start of the view. - * @param {number} end The end of the view. - * @param {Array} transforms The transformations to apply to the view. - * @returns {Object} Returns an object containing the `start` and `end` - * positions of the view. - */ - function getView(start, end, transforms) { - var index = -1, - length = transforms.length; - - while (++index < length) { - var data = transforms[index], - size = data.size; - - switch (data.type) { - case 'drop': start += size; break; - case 'dropRight': end -= size; break; - case 'take': end = nativeMin(end, start + size); break; - case 'takeRight': start = nativeMax(start, end - size); break; - } - } - return { 'start': start, 'end': end }; - } - - /** - * Extracts wrapper details from the `source` body comment. - * - * @private - * @param {string} source The source to inspect. - * @returns {Array} Returns the wrapper details. - */ - function getWrapDetails(source) { - var match = source.match(reWrapDetails); - return match ? match[1].split(reSplitDetails) : []; - } - - /** - * Checks if `path` exists on `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @param {Function} hasFunc The function to check properties. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - */ - function hasPath(object, path, hasFunc) { - path = castPath(path, object); - - var index = -1, - length = path.length, - result = false; - - while (++index < length) { - var key = toKey(path[index]); - if (!(result = object != null && hasFunc(object, key))) { - break; - } - object = object[key]; - } - if (result || ++index != length) { - return result; - } - length = object == null ? 0 : object.length; - return !!length && isLength(length) && isIndex(key, length) && - (isArray(object) || isArguments(object)); - } - - /** - * Initializes an array clone. - * - * @private - * @param {Array} array The array to clone. - * @returns {Array} Returns the initialized clone. - */ - function initCloneArray(array) { - var length = array.length, - result = new array.constructor(length); - - // Add properties assigned by `RegExp#exec`. - if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { - result.index = array.index; - result.input = array.input; - } - return result; - } - - /** - * Initializes an object clone. - * - * @private - * @param {Object} object The object to clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneObject(object) { - return (typeof object.constructor == 'function' && !isPrototype(object)) - ? baseCreate(getPrototype(object)) - : {}; - } - - /** - * Initializes an object clone based on its `toStringTag`. - * - * **Note:** This function only supports cloning values with tags of - * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. - * - * @private - * @param {Object} object The object to clone. - * @param {string} tag The `toStringTag` of the object to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneByTag(object, tag, isDeep) { - var Ctor = object.constructor; - switch (tag) { - case arrayBufferTag: - return cloneArrayBuffer(object); - - case boolTag: - case dateTag: - return new Ctor(+object); - - case dataViewTag: - return cloneDataView(object, isDeep); - - case float32Tag: case float64Tag: - case int8Tag: case int16Tag: case int32Tag: - case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: - return cloneTypedArray(object, isDeep); - - case mapTag: - return new Ctor; - - case numberTag: - case stringTag: - return new Ctor(object); - - case regexpTag: - return cloneRegExp(object); - - case setTag: - return new Ctor; - - case symbolTag: - return cloneSymbol(object); - } - } - - /** - * Inserts wrapper `details` in a comment at the top of the `source` body. - * - * @private - * @param {string} source The source to modify. - * @returns {Array} details The details to insert. - * @returns {string} Returns the modified source. - */ - function insertWrapDetails(source, details) { - var length = details.length; - if (!length) { - return source; - } - var lastIndex = length - 1; - details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; - details = details.join(length > 2 ? ', ' : ' '); - return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); - } - - /** - * Checks if `value` is a flattenable `arguments` object or array. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. - */ - function isFlattenable(value) { - return isArray(value) || isArguments(value) || - !!(spreadableSymbol && value && value[spreadableSymbol]); - } - - /** - * Checks if `value` is a valid array-like index. - * - * @private - * @param {*} value The value to check. - * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. - * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. - */ - function isIndex(value, length) { - var type = typeof value; - length = length == null ? MAX_SAFE_INTEGER : length; - - return !!length && - (type == 'number' || - (type != 'symbol' && reIsUint.test(value))) && - (value > -1 && value % 1 == 0 && value < length); - } - - /** - * Checks if the given arguments are from an iteratee call. - * - * @private - * @param {*} value The potential iteratee value argument. - * @param {*} index The potential iteratee index or key argument. - * @param {*} object The potential iteratee object argument. - * @returns {boolean} Returns `true` if the arguments are from an iteratee call, - * else `false`. - */ - function isIterateeCall(value, index, object) { - if (!isObject(object)) { - return false; - } - var type = typeof index; - if (type == 'number' - ? (isArrayLike(object) && isIndex(index, object.length)) - : (type == 'string' && index in object) - ) { - return eq(object[index], value); - } - return false; - } - - /** - * Checks if `value` is a property name and not a property path. - * - * @private - * @param {*} value The value to check. - * @param {Object} [object] The object to query keys on. - * @returns {boolean} Returns `true` if `value` is a property name, else `false`. - */ - function isKey(value, object) { - if (isArray(value)) { - return false; - } - var type = typeof value; - if (type == 'number' || type == 'symbol' || type == 'boolean' || - value == null || isSymbol(value)) { - return true; - } - return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || - (object != null && value in Object(object)); - } - - /** - * Checks if `value` is suitable for use as unique object key. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is suitable, else `false`. - */ - function isKeyable(value) { - var type = typeof value; - return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') - ? (value !== '__proto__') - : (value === null); - } - - /** - * Checks if `func` has a lazy counterpart. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` has a lazy counterpart, - * else `false`. - */ - function isLaziable(func) { - var funcName = getFuncName(func), - other = lodash[funcName]; - - if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { - return false; - } - if (func === other) { - return true; - } - var data = getData(other); - return !!data && func === data[0]; - } - - /** - * Checks if `func` has its source masked. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` is masked, else `false`. - */ - function isMasked(func) { - return !!maskSrcKey && (maskSrcKey in func); - } - - /** - * Checks if `func` is capable of being masked. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `func` is maskable, else `false`. - */ - var isMaskable = coreJsData ? isFunction : stubFalse; - - /** - * Checks if `value` is likely a prototype object. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. - */ - function isPrototype(value) { - var Ctor = value && value.constructor, - proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; - - return value === proto; - } - - /** - * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` if suitable for strict - * equality comparisons, else `false`. - */ - function isStrictComparable(value) { - return value === value && !isObject(value); - } - - /** - * A specialized version of `matchesProperty` for source values suitable - * for strict equality comparisons, i.e. `===`. - * - * @private - * @param {string} key The key of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function matchesStrictComparable(key, srcValue) { - return function(object) { - if (object == null) { - return false; - } - return object[key] === srcValue && - (srcValue !== undefined || (key in Object(object))); - }; - } - - /** - * A specialized version of `_.memoize` which clears the memoized function's - * cache when it exceeds `MAX_MEMOIZE_SIZE`. - * - * @private - * @param {Function} func The function to have its output memoized. - * @returns {Function} Returns the new memoized function. - */ - function memoizeCapped(func) { - var result = memoize(func, function(key) { - if (cache.size === MAX_MEMOIZE_SIZE) { - cache.clear(); - } - return key; - }); - - var cache = result.cache; - return result; - } - - /** - * Merges the function metadata of `source` into `data`. - * - * Merging metadata reduces the number of wrappers used to invoke a function. - * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` - * may be applied regardless of execution order. Methods like `_.ary` and - * `_.rearg` modify function arguments, making the order in which they are - * executed important, preventing the merging of metadata. However, we make - * an exception for a safe combined case where curried functions have `_.ary` - * and or `_.rearg` applied. - * - * @private - * @param {Array} data The destination metadata. - * @param {Array} source The source metadata. - * @returns {Array} Returns `data`. - */ - function mergeData(data, source) { - var bitmask = data[1], - srcBitmask = source[1], - newBitmask = bitmask | srcBitmask, - isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); - - var isCombo = - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || - ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); - - // Exit early if metadata can't be merged. - if (!(isCommon || isCombo)) { - return data; - } - // Use source `thisArg` if available. - if (srcBitmask & WRAP_BIND_FLAG) { - data[2] = source[2]; - // Set when currying a bound function. - newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; - } - // Compose partial arguments. - var value = source[3]; - if (value) { - var partials = data[3]; - data[3] = partials ? composeArgs(partials, value, source[4]) : value; - data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; - } - // Compose partial right arguments. - value = source[5]; - if (value) { - partials = data[5]; - data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; - data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; - } - // Use source `argPos` if available. - value = source[7]; - if (value) { - data[7] = value; - } - // Use source `ary` if it's smaller. - if (srcBitmask & WRAP_ARY_FLAG) { - data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); - } - // Use source `arity` if one is not provided. - if (data[9] == null) { - data[9] = source[9]; - } - // Use source `func` and merge bitmasks. - data[0] = source[0]; - data[1] = newBitmask; - - return data; - } - - /** - * This function is like - * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * except that it includes inherited enumerable properties. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function nativeKeysIn(object) { - var result = []; - if (object != null) { - for (var key in Object(object)) { - result.push(key); - } - } - return result; - } - - /** - * Converts `value` to a string using `Object.prototype.toString`. - * - * @private - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - */ - function objectToString(value) { - return nativeObjectToString.call(value); - } - - /** - * A specialized version of `baseRest` which transforms the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @param {Function} transform The rest array transform. - * @returns {Function} Returns the new function. - */ - function overRest(func, start, transform) { - start = nativeMax(start === undefined ? (func.length - 1) : start, 0); - return function() { - var args = arguments, - index = -1, - length = nativeMax(args.length - start, 0), - array = Array(length); - - while (++index < length) { - array[index] = args[start + index]; - } - index = -1; - var otherArgs = Array(start + 1); - while (++index < start) { - otherArgs[index] = args[index]; - } - otherArgs[start] = transform(array); - return apply(func, this, otherArgs); - }; - } - - /** - * Gets the parent value at `path` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} path The path to get the parent value of. - * @returns {*} Returns the parent value. - */ - function parent(object, path) { - return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); - } - - /** - * Reorder `array` according to the specified indexes where the element at - * the first index is assigned as the first element, the element at - * the second index is assigned as the second element, and so on. - * - * @private - * @param {Array} array The array to reorder. - * @param {Array} indexes The arranged array indexes. - * @returns {Array} Returns `array`. - */ - function reorder(array, indexes) { - var arrLength = array.length, - length = nativeMin(indexes.length, arrLength), - oldArray = copyArray(array); - - while (length--) { - var index = indexes[length]; - array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; - } - return array; - } - - /** - * Gets the value at `key`, unless `key` is "__proto__" or "constructor". - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function safeGet(object, key) { - if (key === 'constructor' && typeof object[key] === 'function') { - return; - } - - if (key == '__proto__') { - return; - } - - return object[key]; - } - - /** - * Sets metadata for `func`. - * - * **Note:** If this function becomes hot, i.e. is invoked a lot in a short - * period of time, it will trip its breaker and transition to an identity - * function to avoid garbage collection pauses in V8. See - * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) - * for more details. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var setData = shortOut(baseSetData); - - /** - * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout). - * - * @private - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @returns {number|Object} Returns the timer id or timeout object. - */ - var setTimeout = ctxSetTimeout || function(func, wait) { - return root.setTimeout(func, wait); - }; - - /** - * Sets the `toString` method of `func` to return `string`. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var setToString = shortOut(baseSetToString); - - /** - * Sets the `toString` method of `wrapper` to mimic the source of `reference` - * with wrapper details in a comment at the top of the source body. - * - * @private - * @param {Function} wrapper The function to modify. - * @param {Function} reference The reference function. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Function} Returns `wrapper`. - */ - function setWrapToString(wrapper, reference, bitmask) { - var source = (reference + ''); - return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); - } - - /** - * Creates a function that'll short out and invoke `identity` instead - * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` - * milliseconds. - * - * @private - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new shortable function. - */ - function shortOut(func) { - var count = 0, - lastCalled = 0; - - return function() { - var stamp = nativeNow(), - remaining = HOT_SPAN - (stamp - lastCalled); - - lastCalled = stamp; - if (remaining > 0) { - if (++count >= HOT_COUNT) { - return arguments[0]; - } - } else { - count = 0; - } - return func.apply(undefined, arguments); - }; - } - - /** - * A specialized version of `_.shuffle` which mutates and sets the size of `array`. - * - * @private - * @param {Array} array The array to shuffle. - * @param {number} [size=array.length] The size of `array`. - * @returns {Array} Returns `array`. - */ - function shuffleSelf(array, size) { - var index = -1, - length = array.length, - lastIndex = length - 1; - - size = size === undefined ? length : size; - while (++index < size) { - var rand = baseRandom(index, lastIndex), - value = array[rand]; - - array[rand] = array[index]; - array[index] = value; - } - array.length = size; - return array; - } - - /** - * Converts `string` to a property path array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the property path array. - */ - var stringToPath = memoizeCapped(function(string) { - var result = []; - if (string.charCodeAt(0) === 46 /* . */) { - result.push(''); - } - string.replace(rePropName, function(match, number, quote, subString) { - result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); - }); - return result; - }); - - /** - * Converts `value` to a string key if it's not a string or symbol. - * - * @private - * @param {*} value The value to inspect. - * @returns {string|symbol} Returns the key. - */ - function toKey(value) { - if (typeof value == 'string' || isSymbol(value)) { - return value; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * Converts `func` to its source code. - * - * @private - * @param {Function} func The function to convert. - * @returns {string} Returns the source code. - */ - function toSource(func) { - if (func != null) { - try { - return funcToString.call(func); - } catch (e) {} - try { - return (func + ''); - } catch (e) {} - } - return ''; - } - - /** - * Updates wrapper `details` based on `bitmask` flags. - * - * @private - * @returns {Array} details The details to modify. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Array} Returns `details`. - */ - function updateWrapDetails(details, bitmask) { - arrayEach(wrapFlags, function(pair) { - var value = '_.' + pair[0]; - if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { - details.push(value); - } - }); - return details.sort(); - } - - /** - * Creates a clone of `wrapper`. - * - * @private - * @param {Object} wrapper The wrapper to clone. - * @returns {Object} Returns the cloned wrapper. - */ - function wrapperClone(wrapper) { - if (wrapper instanceof LazyWrapper) { - return wrapper.clone(); - } - var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); - result.__actions__ = copyArray(wrapper.__actions__); - result.__index__ = wrapper.__index__; - result.__values__ = wrapper.__values__; - return result; - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array of elements split into groups the length of `size`. - * If `array` can't be split evenly, the final chunk will be the remaining - * elements. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to process. - * @param {number} [size=1] The length of each chunk - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the new array of chunks. - * @example - * - * _.chunk(['a', 'b', 'c', 'd'], 2); - * // => [['a', 'b'], ['c', 'd']] - * - * _.chunk(['a', 'b', 'c', 'd'], 3); - * // => [['a', 'b', 'c'], ['d']] - */ - function chunk(array, size, guard) { - if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) { - size = 1; - } else { - size = nativeMax(toInteger(size), 0); - } - var length = array == null ? 0 : array.length; - if (!length || size < 1) { - return []; - } - var index = 0, - resIndex = 0, - result = Array(nativeCeil(length / size)); - - while (index < length) { - result[resIndex++] = baseSlice(array, index, (index += size)); - } - return result; - } - - /** - * Creates an array with all falsey values removed. The values `false`, `null`, - * `0`, `""`, `undefined`, and `NaN` are falsey. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to compact. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.compact([0, 1, false, 2, '', 3]); - * // => [1, 2, 3] - */ - function compact(array) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * Creates a new array concatenating `array` with any additional arrays - * and/or values. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to concatenate. - * @param {...*} [values] The values to concatenate. - * @returns {Array} Returns the new concatenated array. - * @example - * - * var array = [1]; - * var other = _.concat(array, 2, [3], [[4]]); - * - * console.log(other); - * // => [1, 2, 3, [4]] - * - * console.log(array); - * // => [1] - */ - function concat() { - var length = arguments.length; - if (!length) { - return []; - } - var args = Array(length - 1), - array = arguments[0], - index = length; - - while (index--) { - args[index - 1] = arguments[index]; - } - return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); - } - - /** - * Creates an array of `array` values not included in the other given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * **Note:** Unlike `_.pullAll`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.without, _.xor - * @example - * - * _.difference([2, 1], [2, 3]); - * // => [1] - */ - var difference = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) - : []; - }); - - /** - * This method is like `_.difference` except that it accepts `iteratee` which - * is invoked for each element of `array` and `values` to generate the criterion - * by which they're compared. The order and references of result values are - * determined by the first array. The iteratee is invoked with one argument: - * (value). - * - * **Note:** Unlike `_.pullAllBy`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor); - * // => [1.2] - * - * // The `_.property` iteratee shorthand. - * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x'); - * // => [{ 'x': 2 }] - */ - var differenceBy = baseRest(function(array, values) { - var iteratee = last(values); - if (isArrayLikeObject(iteratee)) { - iteratee = undefined; - } - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)) - : []; - }); - - /** - * This method is like `_.difference` except that it accepts `comparator` - * which is invoked to compare elements of `array` to `values`. The order and - * references of result values are determined by the first array. The comparator - * is invoked with two arguments: (arrVal, othVal). - * - * **Note:** Unlike `_.pullAllWith`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; - * - * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual); - * // => [{ 'x': 2, 'y': 1 }] - */ - var differenceWith = baseRest(function(array, values) { - var comparator = last(values); - if (isArrayLikeObject(comparator)) { - comparator = undefined; - } - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator) - : []; - }); - - /** - * Creates a slice of `array` with `n` elements dropped from the beginning. - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to drop. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.drop([1, 2, 3]); - * // => [2, 3] - * - * _.drop([1, 2, 3], 2); - * // => [3] - * - * _.drop([1, 2, 3], 5); - * // => [] - * - * _.drop([1, 2, 3], 0); - * // => [1, 2, 3] - */ - function drop(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * Creates a slice of `array` with `n` elements dropped from the end. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to drop. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.dropRight([1, 2, 3]); - * // => [1, 2] - * - * _.dropRight([1, 2, 3], 2); - * // => [1] - * - * _.dropRight([1, 2, 3], 5); - * // => [] - * - * _.dropRight([1, 2, 3], 0); - * // => [1, 2, 3] - */ - function dropRight(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - n = length - n; - return baseSlice(array, 0, n < 0 ? 0 : n); - } - - /** - * Creates a slice of `array` excluding elements dropped from the end. - * Elements are dropped until `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index, array). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the slice of `array`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.dropRightWhile(users, function(o) { return !o.active; }); - * // => objects for ['barney'] - * - * // The `_.matches` iteratee shorthand. - * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false }); - * // => objects for ['barney', 'fred'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.dropRightWhile(users, ['active', false]); - * // => objects for ['barney'] - * - * // The `_.property` iteratee shorthand. - * _.dropRightWhile(users, 'active'); - * // => objects for ['barney', 'fred', 'pebbles'] - */ - function dropRightWhile(array, predicate) { - return (array && array.length) - ? baseWhile(array, getIteratee(predicate, 3), true, true) - : []; - } - - /** - * Creates a slice of `array` excluding elements dropped from the beginning. - * Elements are dropped until `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index, array). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the slice of `array`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.dropWhile(users, function(o) { return !o.active; }); - * // => objects for ['pebbles'] - * - * // The `_.matches` iteratee shorthand. - * _.dropWhile(users, { 'user': 'barney', 'active': false }); - * // => objects for ['fred', 'pebbles'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.dropWhile(users, ['active', false]); - * // => objects for ['pebbles'] - * - * // The `_.property` iteratee shorthand. - * _.dropWhile(users, 'active'); - * // => objects for ['barney', 'fred', 'pebbles'] - */ - function dropWhile(array, predicate) { - return (array && array.length) - ? baseWhile(array, getIteratee(predicate, 3), true) - : []; - } - - /** - * Fills elements of `array` with `value` from `start` up to, but not - * including, `end`. - * - * **Note:** This method mutates `array`. - * - * @static - * @memberOf _ - * @since 3.2.0 - * @category Array - * @param {Array} array The array to fill. - * @param {*} value The value to fill `array` with. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns `array`. - * @example - * - * var array = [1, 2, 3]; - * - * _.fill(array, 'a'); - * console.log(array); - * // => ['a', 'a', 'a'] - * - * _.fill(Array(3), 2); - * // => [2, 2, 2] - * - * _.fill([4, 6, 8, 10], '*', 1, 3); - * // => [4, '*', '*', 10] - */ - function fill(array, value, start, end) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - if (start && typeof start != 'number' && isIterateeCall(array, value, start)) { - start = 0; - end = length; - } - return baseFill(array, value, start, end); - } - - /** - * This method is like `_.find` except that it returns the index of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.findIndex(users, function(o) { return o.user == 'barney'; }); - * // => 0 - * - * // The `_.matches` iteratee shorthand. - * _.findIndex(users, { 'user': 'fred', 'active': false }); - * // => 1 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findIndex(users, ['active', false]); - * // => 0 - * - * // The `_.property` iteratee shorthand. - * _.findIndex(users, 'active'); - * // => 2 - */ - function findIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseFindIndex(array, getIteratee(predicate, 3), index); - } - - /** - * This method is like `_.findIndex` except that it iterates over elements - * of `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=array.length-1] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); - * // => 2 - * - * // The `_.matches` iteratee shorthand. - * _.findLastIndex(users, { 'user': 'barney', 'active': true }); - * // => 0 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastIndex(users, ['active', false]); - * // => 2 - * - * // The `_.property` iteratee shorthand. - * _.findLastIndex(users, 'active'); - * // => 0 - */ - function findLastIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = length - 1; - if (fromIndex !== undefined) { - index = toInteger(fromIndex); - index = fromIndex < 0 - ? nativeMax(length + index, 0) - : nativeMin(index, length - 1); - } - return baseFindIndex(array, getIteratee(predicate, 3), index, true); - } - - /** - * Flattens `array` a single level deep. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flatten([1, [2, [3, [4]], 5]]); - * // => [1, 2, [3, [4]], 5] - */ - function flatten(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, 1) : []; - } - - /** - * Recursively flattens `array`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flattenDeep([1, [2, [3, [4]], 5]]); - * // => [1, 2, 3, 4, 5] - */ - function flattenDeep(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, INFINITY) : []; - } - - /** - * Recursively flatten `array` up to `depth` times. - * - * @static - * @memberOf _ - * @since 4.4.0 - * @category Array - * @param {Array} array The array to flatten. - * @param {number} [depth=1] The maximum recursion depth. - * @returns {Array} Returns the new flattened array. - * @example - * - * var array = [1, [2, [3, [4]], 5]]; - * - * _.flattenDepth(array, 1); - * // => [1, 2, [3, [4]], 5] - * - * _.flattenDepth(array, 2); - * // => [1, 2, 3, [4], 5] - */ - function flattenDepth(array, depth) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - depth = depth === undefined ? 1 : toInteger(depth); - return baseFlatten(array, depth); - } - - /** - * The inverse of `_.toPairs`; this method returns an object composed - * from key-value `pairs`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} pairs The key-value pairs. - * @returns {Object} Returns the new object. - * @example - * - * _.fromPairs([['a', 1], ['b', 2]]); - * // => { 'a': 1, 'b': 2 } - */ - function fromPairs(pairs) { - var index = -1, - length = pairs == null ? 0 : pairs.length, - result = {}; - - while (++index < length) { - var pair = pairs[index]; - result[pair[0]] = pair[1]; - } - return result; - } - - /** - * Gets the first element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias first - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the first element of `array`. - * @example - * - * _.head([1, 2, 3]); - * // => 1 - * - * _.head([]); - * // => undefined - */ - function head(array) { - return (array && array.length) ? array[0] : undefined; - } - - /** - * Gets the index at which the first occurrence of `value` is found in `array` - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. If `fromIndex` is negative, it's used as the - * offset from the end of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.indexOf([1, 2, 1, 2], 2); - * // => 1 - * - * // Search from the `fromIndex`. - * _.indexOf([1, 2, 1, 2], 2, 2); - * // => 3 - */ - function indexOf(array, value, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseIndexOf(array, value, index); - } - - /** - * Gets all but the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.initial([1, 2, 3]); - * // => [1, 2] - */ - function initial(array) { - var length = array == null ? 0 : array.length; - return length ? baseSlice(array, 0, -1) : []; - } - - /** - * Creates an array of unique values that are included in all given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * _.intersection([2, 1], [2, 3]); - * // => [2] - */ - var intersection = baseRest(function(arrays) { - var mapped = arrayMap(arrays, castArrayLikeObject); - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped) - : []; - }); - - /** - * This method is like `_.intersection` except that it accepts `iteratee` - * which is invoked for each element of each `arrays` to generate the criterion - * by which they're compared. The order and references of result values are - * determined by the first array. The iteratee is invoked with one argument: - * (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor); - * // => [2.1] - * - * // The `_.property` iteratee shorthand. - * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }] - */ - var intersectionBy = baseRest(function(arrays) { - var iteratee = last(arrays), - mapped = arrayMap(arrays, castArrayLikeObject); - - if (iteratee === last(mapped)) { - iteratee = undefined; - } else { - mapped.pop(); - } - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped, getIteratee(iteratee, 2)) - : []; - }); - - /** - * This method is like `_.intersection` except that it accepts `comparator` - * which is invoked to compare elements of `arrays`. The order and references - * of result values are determined by the first array. The comparator is - * invoked with two arguments: (arrVal, othVal). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; - * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; - * - * _.intersectionWith(objects, others, _.isEqual); - * // => [{ 'x': 1, 'y': 2 }] - */ - var intersectionWith = baseRest(function(arrays) { - var comparator = last(arrays), - mapped = arrayMap(arrays, castArrayLikeObject); - - comparator = typeof comparator == 'function' ? comparator : undefined; - if (comparator) { - mapped.pop(); - } - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped, undefined, comparator) - : []; - }); - - /** - * Converts all elements in `array` into a string separated by `separator`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to convert. - * @param {string} [separator=','] The element separator. - * @returns {string} Returns the joined string. - * @example - * - * _.join(['a', 'b', 'c'], '~'); - * // => 'a~b~c' - */ - function join(array, separator) { - return array == null ? '' : nativeJoin.call(array, separator); - } - - /** - * Gets the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the last element of `array`. - * @example - * - * _.last([1, 2, 3]); - * // => 3 - */ - function last(array) { - var length = array == null ? 0 : array.length; - return length ? array[length - 1] : undefined; - } - - /** - * This method is like `_.indexOf` except that it iterates over elements of - * `array` from right to left. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=array.length-1] The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.lastIndexOf([1, 2, 1, 2], 2); - * // => 3 - * - * // Search from the `fromIndex`. - * _.lastIndexOf([1, 2, 1, 2], 2, 2); - * // => 1 - */ - function lastIndexOf(array, value, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = length; - if (fromIndex !== undefined) { - index = toInteger(fromIndex); - index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1); - } - return value === value - ? strictLastIndexOf(array, value, index) - : baseFindIndex(array, baseIsNaN, index, true); - } - - /** - * Gets the element at index `n` of `array`. If `n` is negative, the nth - * element from the end is returned. - * - * @static - * @memberOf _ - * @since 4.11.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=0] The index of the element to return. - * @returns {*} Returns the nth element of `array`. - * @example - * - * var array = ['a', 'b', 'c', 'd']; - * - * _.nth(array, 1); - * // => 'b' - * - * _.nth(array, -2); - * // => 'c'; - */ - function nth(array, n) { - return (array && array.length) ? baseNth(array, toInteger(n)) : undefined; - } - - /** - * Removes all given values from `array` using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove` - * to remove elements from an array by predicate. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to modify. - * @param {...*} [values] The values to remove. - * @returns {Array} Returns `array`. - * @example - * - * var array = ['a', 'b', 'c', 'a', 'b', 'c']; - * - * _.pull(array, 'a', 'c'); - * console.log(array); - * // => ['b', 'b'] - */ - var pull = baseRest(pullAll); - - /** - * This method is like `_.pull` except that it accepts an array of values to remove. - * - * **Note:** Unlike `_.difference`, this method mutates `array`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @param {Array} values The values to remove. - * @returns {Array} Returns `array`. - * @example - * - * var array = ['a', 'b', 'c', 'a', 'b', 'c']; - * - * _.pullAll(array, ['a', 'c']); - * console.log(array); - * // => ['b', 'b'] - */ - function pullAll(array, values) { - return (array && array.length && values && values.length) - ? basePullAll(array, values) - : array; - } - - /** - * This method is like `_.pullAll` except that it accepts `iteratee` which is - * invoked for each element of `array` and `values` to generate the criterion - * by which they're compared. The iteratee is invoked with one argument: (value). - * - * **Note:** Unlike `_.differenceBy`, this method mutates `array`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @param {Array} values The values to remove. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns `array`. - * @example - * - * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }]; - * - * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x'); - * console.log(array); - * // => [{ 'x': 2 }] - */ - function pullAllBy(array, values, iteratee) { - return (array && array.length && values && values.length) - ? basePullAll(array, values, getIteratee(iteratee, 2)) - : array; - } - - /** - * This method is like `_.pullAll` except that it accepts `comparator` which - * is invoked to compare elements of `array` to `values`. The comparator is - * invoked with two arguments: (arrVal, othVal). - * - * **Note:** Unlike `_.differenceWith`, this method mutates `array`. - * - * @static - * @memberOf _ - * @since 4.6.0 - * @category Array - * @param {Array} array The array to modify. - * @param {Array} values The values to remove. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns `array`. - * @example - * - * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }]; - * - * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual); - * console.log(array); - * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }] - */ - function pullAllWith(array, values, comparator) { - return (array && array.length && values && values.length) - ? basePullAll(array, values, undefined, comparator) - : array; - } - - /** - * Removes elements from `array` corresponding to `indexes` and returns an - * array of removed elements. - * - * **Note:** Unlike `_.at`, this method mutates `array`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to modify. - * @param {...(number|number[])} [indexes] The indexes of elements to remove. - * @returns {Array} Returns the new array of removed elements. - * @example - * - * var array = ['a', 'b', 'c', 'd']; - * var pulled = _.pullAt(array, [1, 3]); - * - * console.log(array); - * // => ['a', 'c'] - * - * console.log(pulled); - * // => ['b', 'd'] - */ - var pullAt = flatRest(function(array, indexes) { - var length = array == null ? 0 : array.length, - result = baseAt(array, indexes); - - basePullAt(array, arrayMap(indexes, function(index) { - return isIndex(index, length) ? +index : index; - }).sort(compareAscending)); - - return result; - }); - - /** - * Removes all elements from `array` that `predicate` returns truthy for - * and returns an array of the removed elements. The predicate is invoked - * with three arguments: (value, index, array). - * - * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull` - * to pull elements from an array by value. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to modify. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new array of removed elements. - * @example - * - * var array = [1, 2, 3, 4]; - * var evens = _.remove(array, function(n) { - * return n % 2 == 0; - * }); - * - * console.log(array); - * // => [1, 3] - * - * console.log(evens); - * // => [2, 4] - */ - function remove(array, predicate) { - var result = []; - if (!(array && array.length)) { - return result; - } - var index = -1, - indexes = [], - length = array.length; - - predicate = getIteratee(predicate, 3); - while (++index < length) { - var value = array[index]; - if (predicate(value, index, array)) { - result.push(value); - indexes.push(index); - } - } - basePullAt(array, indexes); - return result; - } - - /** - * Reverses `array` so that the first element becomes the last, the second - * element becomes the second to last, and so on. - * - * **Note:** This method mutates `array` and is based on - * [`Array#reverse`](https://mdn.io/Array/reverse). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @returns {Array} Returns `array`. - * @example - * - * var array = [1, 2, 3]; - * - * _.reverse(array); - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function reverse(array) { - return array == null ? array : nativeReverse.call(array); - } - - /** - * Creates a slice of `array` from `start` up to, but not including, `end`. - * - * **Note:** This method is used instead of - * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are - * returned. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function slice(array, start, end) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { - start = 0; - end = length; - } - else { - start = start == null ? 0 : toInteger(start); - end = end === undefined ? length : toInteger(end); - } - return baseSlice(array, start, end); - } - - /** - * Uses a binary search to determine the lowest index at which `value` - * should be inserted into `array` in order to maintain its sort order. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The sorted array to inspect. - * @param {*} value The value to evaluate. - * @returns {number} Returns the index at which `value` should be inserted - * into `array`. - * @example - * - * _.sortedIndex([30, 50], 40); - * // => 1 - */ - function sortedIndex(array, value) { - return baseSortedIndex(array, value); - } - - /** - * This method is like `_.sortedIndex` except that it accepts `iteratee` - * which is invoked for `value` and each element of `array` to compute their - * sort ranking. The iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The sorted array to inspect. - * @param {*} value The value to evaluate. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {number} Returns the index at which `value` should be inserted - * into `array`. - * @example - * - * var objects = [{ 'x': 4 }, { 'x': 5 }]; - * - * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); - * // => 0 - * - * // The `_.property` iteratee shorthand. - * _.sortedIndexBy(objects, { 'x': 4 }, 'x'); - * // => 0 - */ - function sortedIndexBy(array, value, iteratee) { - return baseSortedIndexBy(array, value, getIteratee(iteratee, 2)); - } - - /** - * This method is like `_.indexOf` except that it performs a binary - * search on a sorted `array`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.sortedIndexOf([4, 5, 5, 5, 6], 5); - * // => 1 - */ - function sortedIndexOf(array, value) { - var length = array == null ? 0 : array.length; - if (length) { - var index = baseSortedIndex(array, value); - if (index < length && eq(array[index], value)) { - return index; - } - } - return -1; - } - - /** - * This method is like `_.sortedIndex` except that it returns the highest - * index at which `value` should be inserted into `array` in order to - * maintain its sort order. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The sorted array to inspect. - * @param {*} value The value to evaluate. - * @returns {number} Returns the index at which `value` should be inserted - * into `array`. - * @example - * - * _.sortedLastIndex([4, 5, 5, 5, 6], 5); - * // => 4 - */ - function sortedLastIndex(array, value) { - return baseSortedIndex(array, value, true); - } - - /** - * This method is like `_.sortedLastIndex` except that it accepts `iteratee` - * which is invoked for `value` and each element of `array` to compute their - * sort ranking. The iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The sorted array to inspect. - * @param {*} value The value to evaluate. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {number} Returns the index at which `value` should be inserted - * into `array`. - * @example - * - * var objects = [{ 'x': 4 }, { 'x': 5 }]; - * - * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); - * // => 1 - * - * // The `_.property` iteratee shorthand. - * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x'); - * // => 1 - */ - function sortedLastIndexBy(array, value, iteratee) { - return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true); - } - - /** - * This method is like `_.lastIndexOf` except that it performs a binary - * search on a sorted `array`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5); - * // => 3 - */ - function sortedLastIndexOf(array, value) { - var length = array == null ? 0 : array.length; - if (length) { - var index = baseSortedIndex(array, value, true) - 1; - if (eq(array[index], value)) { - return index; - } - } - return -1; - } - - /** - * This method is like `_.uniq` except that it's designed and optimized - * for sorted arrays. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.sortedUniq([1, 1, 2]); - * // => [1, 2] - */ - function sortedUniq(array) { - return (array && array.length) - ? baseSortedUniq(array) - : []; - } - - /** - * This method is like `_.uniqBy` except that it's designed and optimized - * for sorted arrays. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor); - * // => [1.1, 2.3] - */ - function sortedUniqBy(array, iteratee) { - return (array && array.length) - ? baseSortedUniq(array, getIteratee(iteratee, 2)) - : []; - } - - /** - * Gets all but the first element of `array`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to query. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.tail([1, 2, 3]); - * // => [2, 3] - */ - function tail(array) { - var length = array == null ? 0 : array.length; - return length ? baseSlice(array, 1, length) : []; - } - - /** - * Creates a slice of `array` with `n` elements taken from the beginning. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.take([1, 2, 3]); - * // => [1] - * - * _.take([1, 2, 3], 2); - * // => [1, 2] - * - * _.take([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.take([1, 2, 3], 0); - * // => [] - */ - function take(array, n, guard) { - if (!(array && array.length)) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, 0, n < 0 ? 0 : n); - } - - /** - * Creates a slice of `array` with `n` elements taken from the end. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.takeRight([1, 2, 3]); - * // => [3] - * - * _.takeRight([1, 2, 3], 2); - * // => [2, 3] - * - * _.takeRight([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.takeRight([1, 2, 3], 0); - * // => [] - */ - function takeRight(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - n = length - n; - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * Creates a slice of `array` with elements taken from the end. Elements are - * taken until `predicate` returns falsey. The predicate is invoked with - * three arguments: (value, index, array). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the slice of `array`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.takeRightWhile(users, function(o) { return !o.active; }); - * // => objects for ['fred', 'pebbles'] - * - * // The `_.matches` iteratee shorthand. - * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false }); - * // => objects for ['pebbles'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.takeRightWhile(users, ['active', false]); - * // => objects for ['fred', 'pebbles'] - * - * // The `_.property` iteratee shorthand. - * _.takeRightWhile(users, 'active'); - * // => [] - */ - function takeRightWhile(array, predicate) { - return (array && array.length) - ? baseWhile(array, getIteratee(predicate, 3), false, true) - : []; - } - - /** - * Creates a slice of `array` with elements taken from the beginning. Elements - * are taken until `predicate` returns falsey. The predicate is invoked with - * three arguments: (value, index, array). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the slice of `array`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.takeWhile(users, function(o) { return !o.active; }); - * // => objects for ['barney', 'fred'] - * - * // The `_.matches` iteratee shorthand. - * _.takeWhile(users, { 'user': 'barney', 'active': false }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.takeWhile(users, ['active', false]); - * // => objects for ['barney', 'fred'] - * - * // The `_.property` iteratee shorthand. - * _.takeWhile(users, 'active'); - * // => [] - */ - function takeWhile(array, predicate) { - return (array && array.length) - ? baseWhile(array, getIteratee(predicate, 3)) - : []; - } - - /** - * Creates an array of unique values, in order, from all given arrays using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of combined values. - * @example - * - * _.union([2], [1, 2]); - * // => [2, 1] - */ - var union = baseRest(function(arrays) { - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); - }); - - /** - * This method is like `_.union` except that it accepts `iteratee` which is - * invoked for each element of each `arrays` to generate the criterion by - * which uniqueness is computed. Result values are chosen from the first - * array in which the value occurs. The iteratee is invoked with one argument: - * (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new array of combined values. - * @example - * - * _.unionBy([2.1], [1.2, 2.3], Math.floor); - * // => [2.1, 1.2] - * - * // The `_.property` iteratee shorthand. - * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }, { 'x': 2 }] - */ - var unionBy = baseRest(function(arrays) { - var iteratee = last(arrays); - if (isArrayLikeObject(iteratee)) { - iteratee = undefined; - } - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)); - }); - - /** - * This method is like `_.union` except that it accepts `comparator` which - * is invoked to compare elements of `arrays`. Result values are chosen from - * the first array in which the value occurs. The comparator is invoked - * with two arguments: (arrVal, othVal). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of combined values. - * @example - * - * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; - * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; - * - * _.unionWith(objects, others, _.isEqual); - * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] - */ - var unionWith = baseRest(function(arrays) { - var comparator = last(arrays); - comparator = typeof comparator == 'function' ? comparator : undefined; - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator); - }); - - /** - * Creates a duplicate-free version of an array, using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons, in which only the first occurrence of each element - * is kept. The order of result values is determined by the order they occur - * in the array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniq([2, 1, 2]); - * // => [2, 1] - */ - function uniq(array) { - return (array && array.length) ? baseUniq(array) : []; - } - - /** - * This method is like `_.uniq` except that it accepts `iteratee` which is - * invoked for each element in `array` to generate the criterion by which - * uniqueness is computed. The order of result values is determined by the - * order they occur in the array. The iteratee is invoked with one argument: - * (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniqBy([2.1, 1.2, 2.3], Math.floor); - * // => [2.1, 1.2] - * - * // The `_.property` iteratee shorthand. - * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }, { 'x': 2 }] - */ - function uniqBy(array, iteratee) { - return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : []; - } - - /** - * This method is like `_.uniq` except that it accepts `comparator` which - * is invoked to compare elements of `array`. The order of result values is - * determined by the order they occur in the array.The comparator is invoked - * with two arguments: (arrVal, othVal). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }]; - * - * _.uniqWith(objects, _.isEqual); - * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }] - */ - function uniqWith(array, comparator) { - comparator = typeof comparator == 'function' ? comparator : undefined; - return (array && array.length) ? baseUniq(array, undefined, comparator) : []; - } - - /** - * This method is like `_.zip` except that it accepts an array of grouped - * elements and creates an array regrouping the elements to their pre-zip - * configuration. - * - * @static - * @memberOf _ - * @since 1.2.0 - * @category Array - * @param {Array} array The array of grouped elements to process. - * @returns {Array} Returns the new array of regrouped elements. - * @example - * - * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - * - * _.unzip(zipped); - * // => [['a', 'b'], [1, 2], [true, false]] - */ - function unzip(array) { - if (!(array && array.length)) { - return []; - } - var length = 0; - array = arrayFilter(array, function(group) { - if (isArrayLikeObject(group)) { - length = nativeMax(group.length, length); - return true; - } - }); - return baseTimes(length, function(index) { - return arrayMap(array, baseProperty(index)); - }); - } - - /** - * This method is like `_.unzip` except that it accepts `iteratee` to specify - * how regrouped values should be combined. The iteratee is invoked with the - * elements of each group: (...group). - * - * @static - * @memberOf _ - * @since 3.8.0 - * @category Array - * @param {Array} array The array of grouped elements to process. - * @param {Function} [iteratee=_.identity] The function to combine - * regrouped values. - * @returns {Array} Returns the new array of regrouped elements. - * @example - * - * var zipped = _.zip([1, 2], [10, 20], [100, 200]); - * // => [[1, 10, 100], [2, 20, 200]] - * - * _.unzipWith(zipped, _.add); - * // => [3, 30, 300] - */ - function unzipWith(array, iteratee) { - if (!(array && array.length)) { - return []; - } - var result = unzip(array); - if (iteratee == null) { - return result; - } - return arrayMap(result, function(group) { - return apply(iteratee, undefined, group); - }); - } - - /** - * Creates an array excluding all given values using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * **Note:** Unlike `_.pull`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...*} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.difference, _.xor - * @example - * - * _.without([2, 1, 2, 3], 1, 2); - * // => [3] - */ - var without = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, values) - : []; - }); - - /** - * Creates an array of unique values that is the - * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference) - * of the given arrays. The order of result values is determined by the order - * they occur in the arrays. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of filtered values. - * @see _.difference, _.without - * @example - * - * _.xor([2, 1], [2, 3]); - * // => [1, 3] - */ - var xor = baseRest(function(arrays) { - return baseXor(arrayFilter(arrays, isArrayLikeObject)); - }); - - /** - * This method is like `_.xor` except that it accepts `iteratee` which is - * invoked for each element of each `arrays` to generate the criterion by - * which by which they're compared. The order of result values is determined - * by the order they occur in the arrays. The iteratee is invoked with one - * argument: (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor); - * // => [1.2, 3.4] - * - * // The `_.property` iteratee shorthand. - * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 2 }] - */ - var xorBy = baseRest(function(arrays) { - var iteratee = last(arrays); - if (isArrayLikeObject(iteratee)) { - iteratee = undefined; - } - return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2)); - }); - - /** - * This method is like `_.xor` except that it accepts `comparator` which is - * invoked to compare elements of `arrays`. The order of result values is - * determined by the order they occur in the arrays. The comparator is invoked - * with two arguments: (arrVal, othVal). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; - * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; - * - * _.xorWith(objects, others, _.isEqual); - * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] - */ - var xorWith = baseRest(function(arrays) { - var comparator = last(arrays); - comparator = typeof comparator == 'function' ? comparator : undefined; - return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator); - }); - - /** - * Creates an array of grouped elements, the first of which contains the - * first elements of the given arrays, the second of which contains the - * second elements of the given arrays, and so on. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to process. - * @returns {Array} Returns the new array of grouped elements. - * @example - * - * _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - */ - var zip = baseRest(unzip); - - /** - * This method is like `_.fromPairs` except that it accepts two arrays, - * one of property identifiers and one of corresponding values. - * - * @static - * @memberOf _ - * @since 0.4.0 - * @category Array - * @param {Array} [props=[]] The property identifiers. - * @param {Array} [values=[]] The property values. - * @returns {Object} Returns the new object. - * @example - * - * _.zipObject(['a', 'b'], [1, 2]); - * // => { 'a': 1, 'b': 2 } - */ - function zipObject(props, values) { - return baseZipObject(props || [], values || [], assignValue); - } - - /** - * This method is like `_.zipObject` except that it supports property paths. - * - * @static - * @memberOf _ - * @since 4.1.0 - * @category Array - * @param {Array} [props=[]] The property identifiers. - * @param {Array} [values=[]] The property values. - * @returns {Object} Returns the new object. - * @example - * - * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]); - * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } } - */ - function zipObjectDeep(props, values) { - return baseZipObject(props || [], values || [], baseSet); - } - - /** - * This method is like `_.zip` except that it accepts `iteratee` to specify - * how grouped values should be combined. The iteratee is invoked with the - * elements of each group: (...group). - * - * @static - * @memberOf _ - * @since 3.8.0 - * @category Array - * @param {...Array} [arrays] The arrays to process. - * @param {Function} [iteratee=_.identity] The function to combine - * grouped values. - * @returns {Array} Returns the new array of grouped elements. - * @example - * - * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) { - * return a + b + c; - * }); - * // => [111, 222] - */ - var zipWith = baseRest(function(arrays) { - var length = arrays.length, - iteratee = length > 1 ? arrays[length - 1] : undefined; - - iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined; - return unzipWith(arrays, iteratee); - }); - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` wrapper instance that wraps `value` with explicit method - * chain sequences enabled. The result of such sequences must be unwrapped - * with `_#value`. - * - * @static - * @memberOf _ - * @since 1.3.0 - * @category Seq - * @param {*} value The value to wrap. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'pebbles', 'age': 1 } - * ]; - * - * var youngest = _ - * .chain(users) - * .sortBy('age') - * .map(function(o) { - * return o.user + ' is ' + o.age; - * }) - * .head() - * .value(); - * // => 'pebbles is 1' - */ - function chain(value) { - var result = lodash(value); - result.__chain__ = true; - return result; - } - - /** - * This method invokes `interceptor` and returns `value`. The interceptor - * is invoked with one argument; (value). The purpose of this method is to - * "tap into" a method chain sequence in order to modify intermediate results. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns `value`. - * @example - * - * _([1, 2, 3]) - * .tap(function(array) { - * // Mutate input array. - * array.pop(); - * }) - * .reverse() - * .value(); - * // => [2, 1] - */ - function tap(value, interceptor) { - interceptor(value); - return value; - } - - /** - * This method is like `_.tap` except that it returns the result of `interceptor`. - * The purpose of this method is to "pass thru" values replacing intermediate - * results in a method chain sequence. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns the result of `interceptor`. - * @example - * - * _(' abc ') - * .chain() - * .trim() - * .thru(function(value) { - * return [value]; - * }) - * .value(); - * // => ['abc'] - */ - function thru(value, interceptor) { - return interceptor(value); - } - - /** - * This method is the wrapper version of `_.at`. - * - * @name at - * @memberOf _ - * @since 1.0.0 - * @category Seq - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; - * - * _(object).at(['a[0].b.c', 'a[1]']).value(); - * // => [3, 4] - */ - var wrapperAt = flatRest(function(paths) { - var length = paths.length, - start = length ? paths[0] : 0, - value = this.__wrapped__, - interceptor = function(object) { return baseAt(object, paths); }; - - if (length > 1 || this.__actions__.length || - !(value instanceof LazyWrapper) || !isIndex(start)) { - return this.thru(interceptor); - } - value = value.slice(start, +start + (length ? 1 : 0)); - value.__actions__.push({ - 'func': thru, - 'args': [interceptor], - 'thisArg': undefined - }); - return new LodashWrapper(value, this.__chain__).thru(function(array) { - if (length && !array.length) { - array.push(undefined); - } - return array; - }); - }); - - /** - * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. - * - * @name chain - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 } - * ]; - * - * // A sequence without explicit chaining. - * _(users).head(); - * // => { 'user': 'barney', 'age': 36 } - * - * // A sequence with explicit chaining. - * _(users) - * .chain() - * .head() - * .pick('user') - * .value(); - * // => { 'user': 'barney' } - */ - function wrapperChain() { - return chain(this); - } - - /** - * Executes the chain sequence and returns the wrapped result. - * - * @name commit - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2]; - * var wrapped = _(array).push(3); - * - * console.log(array); - * // => [1, 2] - * - * wrapped = wrapped.commit(); - * console.log(array); - * // => [1, 2, 3] - * - * wrapped.last(); - * // => 3 - * - * console.log(array); - * // => [1, 2, 3] - */ - function wrapperCommit() { - return new LodashWrapper(this.value(), this.__chain__); - } - - /** - * Gets the next value on a wrapped object following the - * [iterator protocol](https://mdn.io/iteration_protocols#iterator). - * - * @name next - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the next iterator value. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped.next(); - * // => { 'done': false, 'value': 1 } - * - * wrapped.next(); - * // => { 'done': false, 'value': 2 } - * - * wrapped.next(); - * // => { 'done': true, 'value': undefined } - */ - function wrapperNext() { - if (this.__values__ === undefined) { - this.__values__ = toArray(this.value()); - } - var done = this.__index__ >= this.__values__.length, - value = done ? undefined : this.__values__[this.__index__++]; - - return { 'done': done, 'value': value }; - } - - /** - * Enables the wrapper to be iterable. - * - * @name Symbol.iterator - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the wrapper object. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped[Symbol.iterator]() === wrapped; - * // => true - * - * Array.from(wrapped); - * // => [1, 2] - */ - function wrapperToIterator() { - return this; - } - - /** - * Creates a clone of the chain sequence planting `value` as the wrapped value. - * - * @name plant - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @param {*} value The value to plant. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2]).map(square); - * var other = wrapped.plant([3, 4]); - * - * other.value(); - * // => [9, 16] - * - * wrapped.value(); - * // => [1, 4] - */ - function wrapperPlant(value) { - var result, - parent = this; - - while (parent instanceof baseLodash) { - var clone = wrapperClone(parent); - clone.__index__ = 0; - clone.__values__ = undefined; - if (result) { - previous.__wrapped__ = clone; - } else { - result = clone; - } - var previous = clone; - parent = parent.__wrapped__; - } - previous.__wrapped__ = value; - return result; - } - - /** - * This method is the wrapper version of `_.reverse`. - * - * **Note:** This method mutates the wrapped array. - * - * @name reverse - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2, 3]; - * - * _(array).reverse().value() - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function wrapperReverse() { - var value = this.__wrapped__; - if (value instanceof LazyWrapper) { - var wrapped = value; - if (this.__actions__.length) { - wrapped = new LazyWrapper(this); - } - wrapped = wrapped.reverse(); - wrapped.__actions__.push({ - 'func': thru, - 'args': [reverse], - 'thisArg': undefined - }); - return new LodashWrapper(wrapped, this.__chain__); - } - return this.thru(reverse); - } - - /** - * Executes the chain sequence to resolve the unwrapped value. - * - * @name value - * @memberOf _ - * @since 0.1.0 - * @alias toJSON, valueOf - * @category Seq - * @returns {*} Returns the resolved unwrapped value. - * @example - * - * _([1, 2, 3]).value(); - * // => [1, 2, 3] - */ - function wrapperValue() { - return baseWrapperValue(this.__wrapped__, this.__actions__); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The corresponding value of - * each key is the number of times the key was returned by `iteratee`. The - * iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.countBy([6.1, 4.2, 6.3], Math.floor); - * // => { '4': 1, '6': 2 } - * - * // The `_.property` iteratee shorthand. - * _.countBy(['one', 'two', 'three'], 'length'); - * // => { '3': 2, '5': 1 } - */ - var countBy = createAggregator(function(result, value, key) { - if (hasOwnProperty.call(result, key)) { - ++result[key]; - } else { - baseAssignValue(result, key, 1); - } - }); - - /** - * Checks if `predicate` returns truthy for **all** elements of `collection`. - * Iteration is stopped once `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * **Note:** This method returns `true` for - * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because - * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of - * elements of empty collections. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - * @example - * - * _.every([true, 1, null, 'yes'], Boolean); - * // => false - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.every(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.every(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.every(users, 'active'); - * // => false - */ - function every(collection, predicate, guard) { - var func = isArray(collection) ? arrayEvery : baseEvery; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, getIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning an array of all elements - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * **Note:** Unlike `_.remove`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.reject - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * _.filter(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, { 'age': 36, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.filter(users, 'active'); - * // => objects for ['barney'] - */ - function filter(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, getIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning the first element - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {*} Returns the matched element, else `undefined`. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false }, - * { 'user': 'pebbles', 'age': 1, 'active': true } - * ]; - * - * _.find(users, function(o) { return o.age < 40; }); - * // => object for 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.find(users, { 'age': 1, 'active': true }); - * // => object for 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.find(users, ['active', false]); - * // => object for 'fred' - * - * // The `_.property` iteratee shorthand. - * _.find(users, 'active'); - * // => object for 'barney' - */ - var find = createFind(findIndex); - - /** - * This method is like `_.find` except that it iterates over elements of - * `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Collection - * @param {Array|Object} collection The collection to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=collection.length-1] The index to search from. - * @returns {*} Returns the matched element, else `undefined`. - * @example - * - * _.findLast([1, 2, 3, 4], function(n) { - * return n % 2 == 1; - * }); - * // => 3 - */ - var findLast = createFind(findLastIndex); - - /** - * Creates a flattened array of values by running each element in `collection` - * thru `iteratee` and flattening the mapped results. The iteratee is invoked - * with three arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new flattened array. - * @example - * - * function duplicate(n) { - * return [n, n]; - * } - * - * _.flatMap([1, 2], duplicate); - * // => [1, 1, 2, 2] - */ - function flatMap(collection, iteratee) { - return baseFlatten(map(collection, iteratee), 1); - } - - /** - * This method is like `_.flatMap` except that it recursively flattens the - * mapped results. - * - * @static - * @memberOf _ - * @since 4.7.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new flattened array. - * @example - * - * function duplicate(n) { - * return [[[n, n]]]; - * } - * - * _.flatMapDeep([1, 2], duplicate); - * // => [1, 1, 2, 2] - */ - function flatMapDeep(collection, iteratee) { - return baseFlatten(map(collection, iteratee), INFINITY); - } - - /** - * This method is like `_.flatMap` except that it recursively flattens the - * mapped results up to `depth` times. - * - * @static - * @memberOf _ - * @since 4.7.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {number} [depth=1] The maximum recursion depth. - * @returns {Array} Returns the new flattened array. - * @example - * - * function duplicate(n) { - * return [[[n, n]]]; - * } - * - * _.flatMapDepth([1, 2], duplicate, 2); - * // => [[1, 1], [2, 2]] - */ - function flatMapDepth(collection, iteratee, depth) { - depth = depth === undefined ? 1 : toInteger(depth); - return baseFlatten(map(collection, iteratee), depth); - } - - /** - * Iterates over elements of `collection` and invokes `iteratee` for each element. - * The iteratee is invoked with three arguments: (value, index|key, collection). - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * **Note:** As with other "Collections" methods, objects with a "length" - * property are iterated like arrays. To avoid this behavior use `_.forIn` - * or `_.forOwn` for object iteration. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias each - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - * @see _.forEachRight - * @example - * - * _.forEach([1, 2], function(value) { - * console.log(value); - * }); - * // => Logs `1` then `2`. - * - * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a' then 'b' (iteration order is not guaranteed). - */ - function forEach(collection, iteratee) { - var func = isArray(collection) ? arrayEach : baseEach; - return func(collection, getIteratee(iteratee, 3)); - } - - /** - * This method is like `_.forEach` except that it iterates over elements of - * `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @alias eachRight - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - * @see _.forEach - * @example - * - * _.forEachRight([1, 2], function(value) { - * console.log(value); - * }); - * // => Logs `2` then `1`. - */ - function forEachRight(collection, iteratee) { - var func = isArray(collection) ? arrayEachRight : baseEachRight; - return func(collection, getIteratee(iteratee, 3)); - } - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The order of grouped values - * is determined by the order they occur in `collection`. The corresponding - * value of each key is an array of elements responsible for generating the - * key. The iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.groupBy([6.1, 4.2, 6.3], Math.floor); - * // => { '4': [4.2], '6': [6.1, 6.3] } - * - * // The `_.property` iteratee shorthand. - * _.groupBy(['one', 'two', 'three'], 'length'); - * // => { '3': ['one', 'two'], '5': ['three'] } - */ - var groupBy = createAggregator(function(result, value, key) { - if (hasOwnProperty.call(result, key)) { - result[key].push(value); - } else { - baseAssignValue(result, key, [value]); - } - }); - - /** - * Checks if `value` is in `collection`. If `collection` is a string, it's - * checked for a substring of `value`, otherwise - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * is used for equality comparisons. If `fromIndex` is negative, it's used as - * the offset from the end of `collection`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object|string} collection The collection to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=0] The index to search from. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. - * @returns {boolean} Returns `true` if `value` is found, else `false`. - * @example - * - * _.includes([1, 2, 3], 1); - * // => true - * - * _.includes([1, 2, 3], 1, 2); - * // => false - * - * _.includes({ 'a': 1, 'b': 2 }, 1); - * // => true - * - * _.includes('abcd', 'bc'); - * // => true - */ - function includes(collection, value, fromIndex, guard) { - collection = isArrayLike(collection) ? collection : values(collection); - fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0; - - var length = collection.length; - if (fromIndex < 0) { - fromIndex = nativeMax(length + fromIndex, 0); - } - return isString(collection) - ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1) - : (!!length && baseIndexOf(collection, value, fromIndex) > -1); - } - - /** - * Invokes the method at `path` of each element in `collection`, returning - * an array of the results of each invoked method. Any additional arguments - * are provided to each invoked method. If `path` is a function, it's invoked - * for, and `this` bound to, each element in `collection`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Array|Function|string} path The path of the method to invoke or - * the function invoked per iteration. - * @param {...*} [args] The arguments to invoke each method with. - * @returns {Array} Returns the array of results. - * @example - * - * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort'); - * // => [[1, 5, 7], [1, 2, 3]] - * - * _.invokeMap([123, 456], String.prototype.split, ''); - * // => [['1', '2', '3'], ['4', '5', '6']] - */ - var invokeMap = baseRest(function(collection, path, args) { - var index = -1, - isFunc = typeof path == 'function', - result = isArrayLike(collection) ? Array(collection.length) : []; - - baseEach(collection, function(value) { - result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args); - }); - return result; - }); - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The corresponding value of - * each key is the last element responsible for generating the key. The - * iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * var array = [ - * { 'dir': 'left', 'code': 97 }, - * { 'dir': 'right', 'code': 100 } - * ]; - * - * _.keyBy(array, function(o) { - * return String.fromCharCode(o.code); - * }); - * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } } - * - * _.keyBy(array, 'dir'); - * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } } - */ - var keyBy = createAggregator(function(result, value, key) { - baseAssignValue(result, key, value); - }); - - /** - * Creates an array of values by running each element in `collection` thru - * `iteratee`. The iteratee is invoked with three arguments: - * (value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. - * - * The guarded methods are: - * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, - * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, - * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, - * `template`, `trim`, `trimEnd`, `trimStart`, and `words` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - * @example - * - * function square(n) { - * return n * n; - * } - * - * _.map([4, 8], square); - * // => [16, 64] - * - * _.map({ 'a': 4, 'b': 8 }, square); - * // => [16, 64] (iteration order is not guaranteed) - * - * var users = [ - * { 'user': 'barney' }, - * { 'user': 'fred' } - * ]; - * - * // The `_.property` iteratee shorthand. - * _.map(users, 'user'); - * // => ['barney', 'fred'] - */ - function map(collection, iteratee) { - var func = isArray(collection) ? arrayMap : baseMap; - return func(collection, getIteratee(iteratee, 3)); - } - - /** - * This method is like `_.sortBy` except that it allows specifying the sort - * orders of the iteratees to sort by. If `orders` is unspecified, all values - * are sorted in ascending order. Otherwise, specify an order of "desc" for - * descending or "asc" for ascending sort order of corresponding values. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]] - * The iteratees to sort by. - * @param {string[]} [orders] The sort orders of `iteratees`. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. - * @returns {Array} Returns the new sorted array. - * @example - * - * var users = [ - * { 'user': 'fred', 'age': 48 }, - * { 'user': 'barney', 'age': 34 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'barney', 'age': 36 } - * ]; - * - * // Sort by `user` in ascending order and by `age` in descending order. - * _.orderBy(users, ['user', 'age'], ['asc', 'desc']); - * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] - */ - function orderBy(collection, iteratees, orders, guard) { - if (collection == null) { - return []; - } - if (!isArray(iteratees)) { - iteratees = iteratees == null ? [] : [iteratees]; - } - orders = guard ? undefined : orders; - if (!isArray(orders)) { - orders = orders == null ? [] : [orders]; - } - return baseOrderBy(collection, iteratees, orders); - } - - /** - * Creates an array of elements split into two groups, the first of which - * contains elements `predicate` returns truthy for, the second of which - * contains elements `predicate` returns falsey for. The predicate is - * invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the array of grouped elements. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': true }, - * { 'user': 'pebbles', 'age': 1, 'active': false } - * ]; - * - * _.partition(users, function(o) { return o.active; }); - * // => objects for [['fred'], ['barney', 'pebbles']] - * - * // The `_.matches` iteratee shorthand. - * _.partition(users, { 'age': 1, 'active': false }); - * // => objects for [['pebbles'], ['barney', 'fred']] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.partition(users, ['active', false]); - * // => objects for [['barney', 'pebbles'], ['fred']] - * - * // The `_.property` iteratee shorthand. - * _.partition(users, 'active'); - * // => objects for [['fred'], ['barney', 'pebbles']] - */ - var partition = createAggregator(function(result, value, key) { - result[key ? 0 : 1].push(value); - }, function() { return [[], []]; }); - - /** - * Reduces `collection` to a value which is the accumulated result of running - * each element in `collection` thru `iteratee`, where each successive - * invocation is supplied the return value of the previous. If `accumulator` - * is not given, the first element of `collection` is used as the initial - * value. The iteratee is invoked with four arguments: - * (accumulator, value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.reduce`, `_.reduceRight`, and `_.transform`. - * - * The guarded methods are: - * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, - * and `sortBy` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @returns {*} Returns the accumulated value. - * @see _.reduceRight - * @example - * - * _.reduce([1, 2], function(sum, n) { - * return sum + n; - * }, 0); - * // => 3 - * - * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { - * (result[value] || (result[value] = [])).push(key); - * return result; - * }, {}); - * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) - */ - function reduce(collection, iteratee, accumulator) { - var func = isArray(collection) ? arrayReduce : baseReduce, - initAccum = arguments.length < 3; - - return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach); - } - - /** - * This method is like `_.reduce` except that it iterates over elements of - * `collection` from right to left. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @returns {*} Returns the accumulated value. - * @see _.reduce - * @example - * - * var array = [[0, 1], [2, 3], [4, 5]]; - * - * _.reduceRight(array, function(flattened, other) { - * return flattened.concat(other); - * }, []); - * // => [4, 5, 2, 3, 0, 1] - */ - function reduceRight(collection, iteratee, accumulator) { - var func = isArray(collection) ? arrayReduceRight : baseReduce, - initAccum = arguments.length < 3; - - return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight); - } - - /** - * The opposite of `_.filter`; this method returns the elements of `collection` - * that `predicate` does **not** return truthy for. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.filter - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': true } - * ]; - * - * _.reject(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.reject(users, { 'age': 40, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.reject(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.reject(users, 'active'); - * // => objects for ['barney'] - */ - function reject(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, negate(getIteratee(predicate, 3))); - } - - /** - * Gets a random element from `collection`. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Collection - * @param {Array|Object} collection The collection to sample. - * @returns {*} Returns the random element. - * @example - * - * _.sample([1, 2, 3, 4]); - * // => 2 - */ - function sample(collection) { - var func = isArray(collection) ? arraySample : baseSample; - return func(collection); - } - - /** - * Gets `n` random elements at unique keys from `collection` up to the - * size of `collection`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Collection - * @param {Array|Object} collection The collection to sample. - * @param {number} [n=1] The number of elements to sample. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the random elements. - * @example - * - * _.sampleSize([1, 2, 3], 2); - * // => [3, 1] - * - * _.sampleSize([1, 2, 3], 4); - * // => [2, 3, 1] - */ - function sampleSize(collection, n, guard) { - if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) { - n = 1; - } else { - n = toInteger(n); - } - var func = isArray(collection) ? arraySampleSize : baseSampleSize; - return func(collection, n); - } - - /** - * Creates an array of shuffled values, using a version of the - * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to shuffle. - * @returns {Array} Returns the new shuffled array. - * @example - * - * _.shuffle([1, 2, 3, 4]); - * // => [4, 1, 3, 2] - */ - function shuffle(collection) { - var func = isArray(collection) ? arrayShuffle : baseShuffle; - return func(collection); - } - - /** - * Gets the size of `collection` by returning its length for array-like - * values or the number of own enumerable string keyed properties for objects. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object|string} collection The collection to inspect. - * @returns {number} Returns the collection size. - * @example - * - * _.size([1, 2, 3]); - * // => 3 - * - * _.size({ 'a': 1, 'b': 2 }); - * // => 2 - * - * _.size('pebbles'); - * // => 7 - */ - function size(collection) { - if (collection == null) { - return 0; - } - if (isArrayLike(collection)) { - return isString(collection) ? stringSize(collection) : collection.length; - } - var tag = getTag(collection); - if (tag == mapTag || tag == setTag) { - return collection.size; - } - return baseKeys(collection).length; - } - - /** - * Checks if `predicate` returns truthy for **any** element of `collection`. - * Iteration is stopped once `predicate` returns truthy. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - * @example - * - * _.some([null, 0, 'yes', false], Boolean); - * // => true - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.some(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.some(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.some(users, 'active'); - * // => true - */ - function some(collection, predicate, guard) { - var func = isArray(collection) ? arraySome : baseSome; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, getIteratee(predicate, 3)); - } - - /** - * Creates an array of elements, sorted in ascending order by the results of - * running each element in a collection thru each iteratee. This method - * performs a stable sort, that is, it preserves the original sort order of - * equal elements. The iteratees are invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {...(Function|Function[])} [iteratees=[_.identity]] - * The iteratees to sort by. - * @returns {Array} Returns the new sorted array. - * @example - * - * var users = [ - * { 'user': 'fred', 'age': 48 }, - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'barney', 'age': 34 } - * ]; - * - * _.sortBy(users, [function(o) { return o.user; }]); - * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] - * - * _.sortBy(users, ['user', 'age']); - * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] - */ - var sortBy = baseRest(function(collection, iteratees) { - if (collection == null) { - return []; - } - var length = iteratees.length; - if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { - iteratees = []; - } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { - iteratees = [iteratees[0]]; - } - return baseOrderBy(collection, baseFlatten(iteratees, 1), []); - }); - - /*------------------------------------------------------------------------*/ - - /** - * Gets the timestamp of the number of milliseconds that have elapsed since - * the Unix epoch (1 January 1970 00:00:00 UTC). - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Date - * @returns {number} Returns the timestamp. - * @example - * - * _.defer(function(stamp) { - * console.log(_.now() - stamp); - * }, _.now()); - * // => Logs the number of milliseconds it took for the deferred invocation. - */ - var now = ctxNow || function() { - return root.Date.now(); - }; - - /*------------------------------------------------------------------------*/ - - /** - * The opposite of `_.before`; this method creates a function that invokes - * `func` once it's called `n` or more times. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {number} n The number of calls before `func` is invoked. - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var saves = ['profile', 'settings']; - * - * var done = _.after(saves.length, function() { - * console.log('done saving!'); - * }); - * - * _.forEach(saves, function(type) { - * asyncSave({ 'type': type, 'complete': done }); - * }); - * // => Logs 'done saving!' after the two async saves have completed. - */ - function after(n, func) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - n = toInteger(n); - return function() { - if (--n < 1) { - return func.apply(this, arguments); - } - }; - } - - /** - * Creates a function that invokes `func`, with up to `n` arguments, - * ignoring any additional arguments. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} func The function to cap arguments for. - * @param {number} [n=func.length] The arity cap. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Function} Returns the new capped function. - * @example - * - * _.map(['6', '8', '10'], _.ary(parseInt, 1)); - * // => [6, 8, 10] - */ - function ary(func, n, guard) { - n = guard ? undefined : n; - n = (func && n == null) ? func.length : n; - return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n); - } - - /** - * Creates a function that invokes `func`, with the `this` binding and arguments - * of the created function, while it's called less than `n` times. Subsequent - * calls to the created function return the result of the last `func` invocation. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {number} n The number of calls at which `func` is no longer invoked. - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * jQuery(element).on('click', _.before(5, addContactToList)); - * // => Allows adding up to 4 contacts to the list. - */ - function before(n, func) { - var result; - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - n = toInteger(n); - return function() { - if (--n > 0) { - result = func.apply(this, arguments); - } - if (n <= 1) { - func = undefined; - } - return result; - }; - } - - /** - * Creates a function that invokes `func` with the `this` binding of `thisArg` - * and `partials` prepended to the arguments it receives. - * - * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, - * may be used as a placeholder for partially applied arguments. - * - * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" - * property of bound functions. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to bind. - * @param {*} thisArg The `this` binding of `func`. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * function greet(greeting, punctuation) { - * return greeting + ' ' + this.user + punctuation; - * } - * - * var object = { 'user': 'fred' }; - * - * var bound = _.bind(greet, object, 'hi'); - * bound('!'); - * // => 'hi fred!' - * - * // Bound with placeholders. - * var bound = _.bind(greet, object, _, '!'); - * bound('hi'); - * // => 'hi fred!' - */ - var bind = baseRest(function(func, thisArg, partials) { - var bitmask = WRAP_BIND_FLAG; - if (partials.length) { - var holders = replaceHolders(partials, getHolder(bind)); - bitmask |= WRAP_PARTIAL_FLAG; - } - return createWrap(func, bitmask, thisArg, partials, holders); - }); - - /** - * Creates a function that invokes the method at `object[key]` with `partials` - * prepended to the arguments it receives. - * - * This method differs from `_.bind` by allowing bound functions to reference - * methods that may be redefined or don't yet exist. See - * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern) - * for more details. - * - * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic - * builds, may be used as a placeholder for partially applied arguments. - * - * @static - * @memberOf _ - * @since 0.10.0 - * @category Function - * @param {Object} object The object to invoke the method on. - * @param {string} key The key of the method. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * var object = { - * 'user': 'fred', - * 'greet': function(greeting, punctuation) { - * return greeting + ' ' + this.user + punctuation; - * } - * }; - * - * var bound = _.bindKey(object, 'greet', 'hi'); - * bound('!'); - * // => 'hi fred!' - * - * object.greet = function(greeting, punctuation) { - * return greeting + 'ya ' + this.user + punctuation; - * }; - * - * bound('!'); - * // => 'hiya fred!' - * - * // Bound with placeholders. - * var bound = _.bindKey(object, 'greet', _, '!'); - * bound('hi'); - * // => 'hiya fred!' - */ - var bindKey = baseRest(function(object, key, partials) { - var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG; - if (partials.length) { - var holders = replaceHolders(partials, getHolder(bindKey)); - bitmask |= WRAP_PARTIAL_FLAG; - } - return createWrap(key, bitmask, object, partials, holders); - }); - - /** - * Creates a function that accepts arguments of `func` and either invokes - * `func` returning its result, if at least `arity` number of arguments have - * been provided, or returns a function that accepts the remaining `func` - * arguments, and so on. The arity of `func` may be specified if `func.length` - * is not sufficient. - * - * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds, - * may be used as a placeholder for provided arguments. - * - * **Note:** This method doesn't set the "length" property of curried functions. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Function - * @param {Function} func The function to curry. - * @param {number} [arity=func.length] The arity of `func`. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Function} Returns the new curried function. - * @example - * - * var abc = function(a, b, c) { - * return [a, b, c]; - * }; - * - * var curried = _.curry(abc); - * - * curried(1)(2)(3); - * // => [1, 2, 3] - * - * curried(1, 2)(3); - * // => [1, 2, 3] - * - * curried(1, 2, 3); - * // => [1, 2, 3] - * - * // Curried with placeholders. - * curried(1)(_, 3)(2); - * // => [1, 2, 3] - */ - function curry(func, arity, guard) { - arity = guard ? undefined : arity; - var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity); - result.placeholder = curry.placeholder; - return result; - } - - /** - * This method is like `_.curry` except that arguments are applied to `func` - * in the manner of `_.partialRight` instead of `_.partial`. - * - * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic - * builds, may be used as a placeholder for provided arguments. - * - * **Note:** This method doesn't set the "length" property of curried functions. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} func The function to curry. - * @param {number} [arity=func.length] The arity of `func`. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Function} Returns the new curried function. - * @example - * - * var abc = function(a, b, c) { - * return [a, b, c]; - * }; - * - * var curried = _.curryRight(abc); - * - * curried(3)(2)(1); - * // => [1, 2, 3] - * - * curried(2, 3)(1); - * // => [1, 2, 3] - * - * curried(1, 2, 3); - * // => [1, 2, 3] - * - * // Curried with placeholders. - * curried(3)(1, _)(2); - * // => [1, 2, 3] - */ - function curryRight(func, arity, guard) { - arity = guard ? undefined : arity; - var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity); - result.placeholder = curryRight.placeholder; - return result; - } - - /** - * Creates a debounced function that delays invoking `func` until after `wait` - * milliseconds have elapsed since the last time the debounced function was - * invoked. The debounced function comes with a `cancel` method to cancel - * delayed `func` invocations and a `flush` method to immediately invoke them. - * Provide `options` to indicate whether `func` should be invoked on the - * leading and/or trailing edge of the `wait` timeout. The `func` is invoked - * with the last arguments provided to the debounced function. Subsequent - * calls to the debounced function return the result of the last `func` - * invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the debounced function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.debounce` and `_.throttle`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to debounce. - * @param {number} [wait=0] The number of milliseconds to delay. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=false] - * Specify invoking on the leading edge of the timeout. - * @param {number} [options.maxWait] - * The maximum time `func` is allowed to be delayed before it's invoked. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new debounced function. - * @example - * - * // Avoid costly calculations while the window size is in flux. - * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); - * - * // Invoke `sendMail` when clicked, debouncing subsequent calls. - * jQuery(element).on('click', _.debounce(sendMail, 300, { - * 'leading': true, - * 'trailing': false - * })); - * - * // Ensure `batchLog` is invoked once after 1 second of debounced calls. - * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); - * var source = new EventSource('/stream'); - * jQuery(source).on('message', debounced); - * - * // Cancel the trailing debounced invocation. - * jQuery(window).on('popstate', debounced.cancel); - */ - function debounce(func, wait, options) { - var lastArgs, - lastThis, - maxWait, - result, - timerId, - lastCallTime, - lastInvokeTime = 0, - leading = false, - maxing = false, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - wait = toNumber(wait) || 0; - if (isObject(options)) { - leading = !!options.leading; - maxing = 'maxWait' in options; - maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - - function invokeFunc(time) { - var args = lastArgs, - thisArg = lastThis; - - lastArgs = lastThis = undefined; - lastInvokeTime = time; - result = func.apply(thisArg, args); - return result; - } - - function leadingEdge(time) { - // Reset any `maxWait` timer. - lastInvokeTime = time; - // Start the timer for the trailing edge. - timerId = setTimeout(timerExpired, wait); - // Invoke the leading edge. - return leading ? invokeFunc(time) : result; - } - - function remainingWait(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime, - timeWaiting = wait - timeSinceLastCall; - - return maxing - ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) - : timeWaiting; - } - - function shouldInvoke(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime; - - // Either this is the first call, activity has stopped and we're at the - // trailing edge, the system time has gone backwards and we're treating - // it as the trailing edge, or we've hit the `maxWait` limit. - return (lastCallTime === undefined || (timeSinceLastCall >= wait) || - (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); - } - - function timerExpired() { - var time = now(); - if (shouldInvoke(time)) { - return trailingEdge(time); - } - // Restart the timer. - timerId = setTimeout(timerExpired, remainingWait(time)); - } - - function trailingEdge(time) { - timerId = undefined; - - // Only invoke if we have `lastArgs` which means `func` has been - // debounced at least once. - if (trailing && lastArgs) { - return invokeFunc(time); - } - lastArgs = lastThis = undefined; - return result; - } - - function cancel() { - if (timerId !== undefined) { - clearTimeout(timerId); - } - lastInvokeTime = 0; - lastArgs = lastCallTime = lastThis = timerId = undefined; - } - - function flush() { - return timerId === undefined ? result : trailingEdge(now()); - } - - function debounced() { - var time = now(), - isInvoking = shouldInvoke(time); - - lastArgs = arguments; - lastThis = this; - lastCallTime = time; - - if (isInvoking) { - if (timerId === undefined) { - return leadingEdge(lastCallTime); - } - if (maxing) { - // Handle invocations in a tight loop. - clearTimeout(timerId); - timerId = setTimeout(timerExpired, wait); - return invokeFunc(lastCallTime); - } - } - if (timerId === undefined) { - timerId = setTimeout(timerExpired, wait); - } - return result; - } - debounced.cancel = cancel; - debounced.flush = flush; - return debounced; - } - - /** - * Defers invoking the `func` until the current call stack has cleared. Any - * additional arguments are provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to defer. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.defer(function(text) { - * console.log(text); - * }, 'deferred'); - * // => Logs 'deferred' after one millisecond. - */ - var defer = baseRest(function(func, args) { - return baseDelay(func, 1, args); - }); - - /** - * Invokes `func` after `wait` milliseconds. Any additional arguments are - * provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.delay(function(text) { - * console.log(text); - * }, 1000, 'later'); - * // => Logs 'later' after one second. - */ - var delay = baseRest(function(func, wait, args) { - return baseDelay(func, toNumber(wait) || 0, args); - }); - - /** - * Creates a function that invokes `func` with arguments reversed. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to flip arguments for. - * @returns {Function} Returns the new flipped function. - * @example - * - * var flipped = _.flip(function() { - * return _.toArray(arguments); - * }); - * - * flipped('a', 'b', 'c', 'd'); - * // => ['d', 'c', 'b', 'a'] - */ - function flip(func) { - return createWrap(func, WRAP_FLIP_FLAG); - } - - /** - * Creates a function that memoizes the result of `func`. If `resolver` is - * provided, it determines the cache key for storing the result based on the - * arguments provided to the memoized function. By default, the first argument - * provided to the memoized function is used as the map cache key. The `func` - * is invoked with the `this` binding of the memoized function. - * - * **Note:** The cache is exposed as the `cache` property on the memoized - * function. Its creation may be customized by replacing the `_.memoize.Cache` - * constructor with one whose instances implement the - * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) - * method interface of `clear`, `delete`, `get`, `has`, and `set`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to have its output memoized. - * @param {Function} [resolver] The function to resolve the cache key. - * @returns {Function} Returns the new memoized function. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * var other = { 'c': 3, 'd': 4 }; - * - * var values = _.memoize(_.values); - * values(object); - * // => [1, 2] - * - * values(other); - * // => [3, 4] - * - * object.a = 2; - * values(object); - * // => [1, 2] - * - * // Modify the result cache. - * values.cache.set(object, ['a', 'b']); - * values(object); - * // => ['a', 'b'] - * - * // Replace `_.memoize.Cache`. - * _.memoize.Cache = WeakMap; - */ - function memoize(func, resolver) { - if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { - throw new TypeError(FUNC_ERROR_TEXT); - } - var memoized = function() { - var args = arguments, - key = resolver ? resolver.apply(this, args) : args[0], - cache = memoized.cache; - - if (cache.has(key)) { - return cache.get(key); - } - var result = func.apply(this, args); - memoized.cache = cache.set(key, result) || cache; - return result; - }; - memoized.cache = new (memoize.Cache || MapCache); - return memoized; - } - - // Expose `MapCache`. - memoize.Cache = MapCache; - - /** - * Creates a function that negates the result of the predicate `func`. The - * `func` predicate is invoked with the `this` binding and arguments of the - * created function. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} predicate The predicate to negate. - * @returns {Function} Returns the new negated function. - * @example - * - * function isEven(n) { - * return n % 2 == 0; - * } - * - * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); - * // => [1, 3, 5] - */ - function negate(predicate) { - if (typeof predicate != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return function() { - var args = arguments; - switch (args.length) { - case 0: return !predicate.call(this); - case 1: return !predicate.call(this, args[0]); - case 2: return !predicate.call(this, args[0], args[1]); - case 3: return !predicate.call(this, args[0], args[1], args[2]); - } - return !predicate.apply(this, args); - }; - } - - /** - * Creates a function that is restricted to invoking `func` once. Repeat calls - * to the function return the value of the first invocation. The `func` is - * invoked with the `this` binding and arguments of the created function. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var initialize = _.once(createApplication); - * initialize(); - * initialize(); - * // => `createApplication` is invoked once - */ - function once(func) { - return before(2, func); - } - - /** - * Creates a function that invokes `func` with its arguments transformed. - * - * @static - * @since 4.0.0 - * @memberOf _ - * @category Function - * @param {Function} func The function to wrap. - * @param {...(Function|Function[])} [transforms=[_.identity]] - * The argument transforms. - * @returns {Function} Returns the new function. - * @example - * - * function doubled(n) { - * return n * 2; - * } - * - * function square(n) { - * return n * n; - * } - * - * var func = _.overArgs(function(x, y) { - * return [x, y]; - * }, [square, doubled]); - * - * func(9, 3); - * // => [81, 6] - * - * func(10, 5); - * // => [100, 10] - */ - var overArgs = castRest(function(func, transforms) { - transforms = (transforms.length == 1 && isArray(transforms[0])) - ? arrayMap(transforms[0], baseUnary(getIteratee())) - : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee())); - - var funcsLength = transforms.length; - return baseRest(function(args) { - var index = -1, - length = nativeMin(args.length, funcsLength); - - while (++index < length) { - args[index] = transforms[index].call(this, args[index]); - } - return apply(func, this, args); - }); - }); - - /** - * Creates a function that invokes `func` with `partials` prepended to the - * arguments it receives. This method is like `_.bind` except it does **not** - * alter the `this` binding. - * - * The `_.partial.placeholder` value, which defaults to `_` in monolithic - * builds, may be used as a placeholder for partially applied arguments. - * - * **Note:** This method doesn't set the "length" property of partially - * applied functions. - * - * @static - * @memberOf _ - * @since 0.2.0 - * @category Function - * @param {Function} func The function to partially apply arguments to. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new partially applied function. - * @example - * - * function greet(greeting, name) { - * return greeting + ' ' + name; - * } - * - * var sayHelloTo = _.partial(greet, 'hello'); - * sayHelloTo('fred'); - * // => 'hello fred' - * - * // Partially applied with placeholders. - * var greetFred = _.partial(greet, _, 'fred'); - * greetFred('hi'); - * // => 'hi fred' - */ - var partial = baseRest(function(func, partials) { - var holders = replaceHolders(partials, getHolder(partial)); - return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders); - }); - - /** - * This method is like `_.partial` except that partially applied arguments - * are appended to the arguments it receives. - * - * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic - * builds, may be used as a placeholder for partially applied arguments. - * - * **Note:** This method doesn't set the "length" property of partially - * applied functions. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Function - * @param {Function} func The function to partially apply arguments to. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new partially applied function. - * @example - * - * function greet(greeting, name) { - * return greeting + ' ' + name; - * } - * - * var greetFred = _.partialRight(greet, 'fred'); - * greetFred('hi'); - * // => 'hi fred' - * - * // Partially applied with placeholders. - * var sayHelloTo = _.partialRight(greet, 'hello', _); - * sayHelloTo('fred'); - * // => 'hello fred' - */ - var partialRight = baseRest(function(func, partials) { - var holders = replaceHolders(partials, getHolder(partialRight)); - return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders); - }); - - /** - * Creates a function that invokes `func` with arguments arranged according - * to the specified `indexes` where the argument value at the first index is - * provided as the first argument, the argument value at the second index is - * provided as the second argument, and so on. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} func The function to rearrange arguments for. - * @param {...(number|number[])} indexes The arranged argument indexes. - * @returns {Function} Returns the new function. - * @example - * - * var rearged = _.rearg(function(a, b, c) { - * return [a, b, c]; - * }, [2, 0, 1]); - * - * rearged('b', 'c', 'a') - * // => ['a', 'b', 'c'] - */ - var rearg = flatRest(function(func, indexes) { - return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes); - }); - - /** - * Creates a function that invokes `func` with the `this` binding of the - * created function and arguments from `start` and beyond provided as - * an array. - * - * **Note:** This method is based on the - * [rest parameter](https://mdn.io/rest_parameters). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - * @example - * - * var say = _.rest(function(what, names) { - * return what + ' ' + _.initial(names).join(', ') + - * (_.size(names) > 1 ? ', & ' : '') + _.last(names); - * }); - * - * say('hello', 'fred', 'barney', 'pebbles'); - * // => 'hello fred, barney, & pebbles' - */ - function rest(func, start) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - start = start === undefined ? start : toInteger(start); - return baseRest(func, start); - } - - /** - * Creates a function that invokes `func` with the `this` binding of the - * create function and an array of arguments much like - * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply). - * - * **Note:** This method is based on the - * [spread operator](https://mdn.io/spread_operator). - * - * @static - * @memberOf _ - * @since 3.2.0 - * @category Function - * @param {Function} func The function to spread arguments over. - * @param {number} [start=0] The start position of the spread. - * @returns {Function} Returns the new function. - * @example - * - * var say = _.spread(function(who, what) { - * return who + ' says ' + what; - * }); - * - * say(['fred', 'hello']); - * // => 'fred says hello' - * - * var numbers = Promise.all([ - * Promise.resolve(40), - * Promise.resolve(36) - * ]); - * - * numbers.then(_.spread(function(x, y) { - * return x + y; - * })); - * // => a Promise of 76 - */ - function spread(func, start) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - start = start == null ? 0 : nativeMax(toInteger(start), 0); - return baseRest(function(args) { - var array = args[start], - otherArgs = castSlice(args, 0, start); - - if (array) { - arrayPush(otherArgs, array); - } - return apply(func, this, otherArgs); - }); - } - - /** - * Creates a throttled function that only invokes `func` at most once per - * every `wait` milliseconds. The throttled function comes with a `cancel` - * method to cancel delayed `func` invocations and a `flush` method to - * immediately invoke them. Provide `options` to indicate whether `func` - * should be invoked on the leading and/or trailing edge of the `wait` - * timeout. The `func` is invoked with the last arguments provided to the - * throttled function. Subsequent calls to the throttled function return the - * result of the last `func` invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the throttled function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.throttle` and `_.debounce`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to throttle. - * @param {number} [wait=0] The number of milliseconds to throttle invocations to. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=true] - * Specify invoking on the leading edge of the timeout. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new throttled function. - * @example - * - * // Avoid excessively updating the position while scrolling. - * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); - * - * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. - * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); - * jQuery(element).on('click', throttled); - * - * // Cancel the trailing throttled invocation. - * jQuery(window).on('popstate', throttled.cancel); - */ - function throttle(func, wait, options) { - var leading = true, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - if (isObject(options)) { - leading = 'leading' in options ? !!options.leading : leading; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - return debounce(func, wait, { - 'leading': leading, - 'maxWait': wait, - 'trailing': trailing - }); - } - - /** - * Creates a function that accepts up to one argument, ignoring any - * additional arguments. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to cap arguments for. - * @returns {Function} Returns the new capped function. - * @example - * - * _.map(['6', '8', '10'], _.unary(parseInt)); - * // => [6, 8, 10] - */ - function unary(func) { - return ary(func, 1); - } - - /** - * Creates a function that provides `value` to `wrapper` as its first - * argument. Any additional arguments provided to the function are appended - * to those provided to the `wrapper`. The wrapper is invoked with the `this` - * binding of the created function. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {*} value The value to wrap. - * @param {Function} [wrapper=identity] The wrapper function. - * @returns {Function} Returns the new function. - * @example - * - * var p = _.wrap(_.escape, function(func, text) { - * return '

' + func(text) + '

'; - * }); - * - * p('fred, barney, & pebbles'); - * // => '

fred, barney, & pebbles

' - */ - function wrap(value, wrapper) { - return partial(castFunction(wrapper), value); - } - - /*------------------------------------------------------------------------*/ - - /** - * Casts `value` as an array if it's not one. - * - * @static - * @memberOf _ - * @since 4.4.0 - * @category Lang - * @param {*} value The value to inspect. - * @returns {Array} Returns the cast array. - * @example - * - * _.castArray(1); - * // => [1] - * - * _.castArray({ 'a': 1 }); - * // => [{ 'a': 1 }] - * - * _.castArray('abc'); - * // => ['abc'] - * - * _.castArray(null); - * // => [null] - * - * _.castArray(undefined); - * // => [undefined] - * - * _.castArray(); - * // => [] - * - * var array = [1, 2, 3]; - * console.log(_.castArray(array) === array); - * // => true - */ - function castArray() { - if (!arguments.length) { - return []; - } - var value = arguments[0]; - return isArray(value) ? value : [value]; - } - - /** - * Creates a shallow clone of `value`. - * - * **Note:** This method is loosely based on the - * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) - * and supports cloning arrays, array buffers, booleans, date objects, maps, - * numbers, `Object` objects, regexes, sets, strings, symbols, and typed - * arrays. The own enumerable properties of `arguments` objects are cloned - * as plain objects. An empty object is returned for uncloneable values such - * as error objects, functions, DOM nodes, and WeakMaps. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to clone. - * @returns {*} Returns the cloned value. - * @see _.cloneDeep - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var shallow = _.clone(objects); - * console.log(shallow[0] === objects[0]); - * // => true - */ - function clone(value) { - return baseClone(value, CLONE_SYMBOLS_FLAG); - } - - /** - * This method is like `_.clone` except that it accepts `customizer` which - * is invoked to produce the cloned value. If `customizer` returns `undefined`, - * cloning is handled by the method instead. The `customizer` is invoked with - * up to four arguments; (value [, index|key, object, stack]). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to clone. - * @param {Function} [customizer] The function to customize cloning. - * @returns {*} Returns the cloned value. - * @see _.cloneDeepWith - * @example - * - * function customizer(value) { - * if (_.isElement(value)) { - * return value.cloneNode(false); - * } - * } - * - * var el = _.cloneWith(document.body, customizer); - * - * console.log(el === document.body); - * // => false - * console.log(el.nodeName); - * // => 'BODY' - * console.log(el.childNodes.length); - * // => 0 - */ - function cloneWith(value, customizer) { - customizer = typeof customizer == 'function' ? customizer : undefined; - return baseClone(value, CLONE_SYMBOLS_FLAG, customizer); - } - - /** - * This method is like `_.clone` except that it recursively clones `value`. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Lang - * @param {*} value The value to recursively clone. - * @returns {*} Returns the deep cloned value. - * @see _.clone - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var deep = _.cloneDeep(objects); - * console.log(deep[0] === objects[0]); - * // => false - */ - function cloneDeep(value) { - return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); - } - - /** - * This method is like `_.cloneWith` except that it recursively clones `value`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to recursively clone. - * @param {Function} [customizer] The function to customize cloning. - * @returns {*} Returns the deep cloned value. - * @see _.cloneWith - * @example - * - * function customizer(value) { - * if (_.isElement(value)) { - * return value.cloneNode(true); - * } - * } - * - * var el = _.cloneDeepWith(document.body, customizer); - * - * console.log(el === document.body); - * // => false - * console.log(el.nodeName); - * // => 'BODY' - * console.log(el.childNodes.length); - * // => 20 - */ - function cloneDeepWith(value, customizer) { - customizer = typeof customizer == 'function' ? customizer : undefined; - return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer); - } - - /** - * Checks if `object` conforms to `source` by invoking the predicate - * properties of `source` with the corresponding property values of `object`. - * - * **Note:** This method is equivalent to `_.conforms` when `source` is - * partially applied. - * - * @static - * @memberOf _ - * @since 4.14.0 - * @category Lang - * @param {Object} object The object to inspect. - * @param {Object} source The object of property predicates to conform to. - * @returns {boolean} Returns `true` if `object` conforms, else `false`. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * - * _.conformsTo(object, { 'b': function(n) { return n > 1; } }); - * // => true - * - * _.conformsTo(object, { 'b': function(n) { return n > 2; } }); - * // => false - */ - function conformsTo(object, source) { - return source == null || baseConformsTo(object, source, keys(source)); - } - - /** - * Performs a - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * comparison between two values to determine if they are equivalent. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.eq(object, object); - * // => true - * - * _.eq(object, other); - * // => false - * - * _.eq('a', 'a'); - * // => true - * - * _.eq('a', Object('a')); - * // => false - * - * _.eq(NaN, NaN); - * // => true - */ - function eq(value, other) { - return value === other || (value !== value && other !== other); - } - - /** - * Checks if `value` is greater than `other`. - * - * @static - * @memberOf _ - * @since 3.9.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than `other`, - * else `false`. - * @see _.lt - * @example - * - * _.gt(3, 1); - * // => true - * - * _.gt(3, 3); - * // => false - * - * _.gt(1, 3); - * // => false - */ - var gt = createRelationalOperation(baseGt); - - /** - * Checks if `value` is greater than or equal to `other`. - * - * @static - * @memberOf _ - * @since 3.9.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than or equal to - * `other`, else `false`. - * @see _.lte - * @example - * - * _.gte(3, 1); - * // => true - * - * _.gte(3, 3); - * // => true - * - * _.gte(1, 3); - * // => false - */ - var gte = createRelationalOperation(function(value, other) { - return value >= other; - }); - - /** - * Checks if `value` is likely an `arguments` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - * else `false`. - * @example - * - * _.isArguments(function() { return arguments; }()); - * // => true - * - * _.isArguments([1, 2, 3]); - * // => false - */ - var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { - return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && - !propertyIsEnumerable.call(value, 'callee'); - }; - - /** - * Checks if `value` is classified as an `Array` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array, else `false`. - * @example - * - * _.isArray([1, 2, 3]); - * // => true - * - * _.isArray(document.body.children); - * // => false - * - * _.isArray('abc'); - * // => false - * - * _.isArray(_.noop); - * // => false - */ - var isArray = Array.isArray; - - /** - * Checks if `value` is classified as an `ArrayBuffer` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. - * @example - * - * _.isArrayBuffer(new ArrayBuffer(2)); - * // => true - * - * _.isArrayBuffer(new Array(2)); - * // => false - */ - var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer; - - /** - * Checks if `value` is array-like. A value is considered array-like if it's - * not a function and has a `value.length` that's an integer greater than or - * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is array-like, else `false`. - * @example - * - * _.isArrayLike([1, 2, 3]); - * // => true - * - * _.isArrayLike(document.body.children); - * // => true - * - * _.isArrayLike('abc'); - * // => true - * - * _.isArrayLike(_.noop); - * // => false - */ - function isArrayLike(value) { - return value != null && isLength(value.length) && !isFunction(value); - } - - /** - * This method is like `_.isArrayLike` except that it also checks if `value` - * is an object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array-like object, - * else `false`. - * @example - * - * _.isArrayLikeObject([1, 2, 3]); - * // => true - * - * _.isArrayLikeObject(document.body.children); - * // => true - * - * _.isArrayLikeObject('abc'); - * // => false - * - * _.isArrayLikeObject(_.noop); - * // => false - */ - function isArrayLikeObject(value) { - return isObjectLike(value) && isArrayLike(value); - } - - /** - * Checks if `value` is classified as a boolean primitive or object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. - * @example - * - * _.isBoolean(false); - * // => true - * - * _.isBoolean(null); - * // => false - */ - function isBoolean(value) { - return value === true || value === false || - (isObjectLike(value) && baseGetTag(value) == boolTag); - } - - /** - * Checks if `value` is a buffer. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. - * @example - * - * _.isBuffer(new Buffer(2)); - * // => true - * - * _.isBuffer(new Uint8Array(2)); - * // => false - */ - var isBuffer = nativeIsBuffer || stubFalse; - - /** - * Checks if `value` is classified as a `Date` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - * @example - * - * _.isDate(new Date); - * // => true - * - * _.isDate('Mon April 23 2012'); - * // => false - */ - var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; - - /** - * Checks if `value` is likely a DOM element. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`. - * @example - * - * _.isElement(document.body); - * // => true - * - * _.isElement(''); - * // => false - */ - function isElement(value) { - return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value); - } - - /** - * Checks if `value` is an empty object, collection, map, or set. - * - * Objects are considered empty if they have no own enumerable string keyed - * properties. - * - * Array-like values such as `arguments` objects, arrays, buffers, strings, or - * jQuery-like collections are considered empty if they have a `length` of `0`. - * Similarly, maps and sets are considered empty if they have a `size` of `0`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is empty, else `false`. - * @example - * - * _.isEmpty(null); - * // => true - * - * _.isEmpty(true); - * // => true - * - * _.isEmpty(1); - * // => true - * - * _.isEmpty([1, 2, 3]); - * // => false - * - * _.isEmpty({ 'a': 1 }); - * // => false - */ - function isEmpty(value) { - if (value == null) { - return true; - } - if (isArrayLike(value) && - (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || - isBuffer(value) || isTypedArray(value) || isArguments(value))) { - return !value.length; - } - var tag = getTag(value); - if (tag == mapTag || tag == setTag) { - return !value.size; - } - if (isPrototype(value)) { - return !baseKeys(value).length; - } - for (var key in value) { - if (hasOwnProperty.call(value, key)) { - return false; - } - } - return true; - } - - /** - * Performs a deep comparison between two values to determine if they are - * equivalent. - * - * **Note:** This method supports comparing arrays, array buffers, booleans, - * date objects, error objects, maps, numbers, `Object` objects, regexes, - * sets, strings, symbols, and typed arrays. `Object` objects are compared - * by their own, not inherited, enumerable properties. Functions and DOM - * nodes are compared by strict equality, i.e. `===`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.isEqual(object, other); - * // => true - * - * object === other; - * // => false - */ - function isEqual(value, other) { - return baseIsEqual(value, other); - } - - /** - * This method is like `_.isEqual` except that it accepts `customizer` which - * is invoked to compare values. If `customizer` returns `undefined`, comparisons - * are handled by the method instead. The `customizer` is invoked with up to - * six arguments: (objValue, othValue [, index|key, object, other, stack]). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * function isGreeting(value) { - * return /^h(?:i|ello)$/.test(value); - * } - * - * function customizer(objValue, othValue) { - * if (isGreeting(objValue) && isGreeting(othValue)) { - * return true; - * } - * } - * - * var array = ['hello', 'goodbye']; - * var other = ['hi', 'goodbye']; - * - * _.isEqualWith(array, other, customizer); - * // => true - */ - function isEqualWith(value, other, customizer) { - customizer = typeof customizer == 'function' ? customizer : undefined; - var result = customizer ? customizer(value, other) : undefined; - return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result; - } - - /** - * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`, - * `SyntaxError`, `TypeError`, or `URIError` object. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an error object, else `false`. - * @example - * - * _.isError(new Error); - * // => true - * - * _.isError(Error); - * // => false - */ - function isError(value) { - if (!isObjectLike(value)) { - return false; - } - var tag = baseGetTag(value); - return tag == errorTag || tag == domExcTag || - (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value)); - } - - /** - * Checks if `value` is a finite primitive number. - * - * **Note:** This method is based on - * [`Number.isFinite`](https://mdn.io/Number/isFinite). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. - * @example - * - * _.isFinite(3); - * // => true - * - * _.isFinite(Number.MIN_VALUE); - * // => true - * - * _.isFinite(Infinity); - * // => false - * - * _.isFinite('3'); - * // => false - */ - function isFinite(value) { - return typeof value == 'number' && nativeIsFinite(value); - } - - /** - * Checks if `value` is classified as a `Function` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a function, else `false`. - * @example - * - * _.isFunction(_); - * // => true - * - * _.isFunction(/abc/); - * // => false - */ - function isFunction(value) { - if (!isObject(value)) { - return false; - } - // The use of `Object#toString` avoids issues with the `typeof` operator - // in Safari 9 which returns 'object' for typed arrays and other constructors. - var tag = baseGetTag(value); - return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; - } - - /** - * Checks if `value` is an integer. - * - * **Note:** This method is based on - * [`Number.isInteger`](https://mdn.io/Number/isInteger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an integer, else `false`. - * @example - * - * _.isInteger(3); - * // => true - * - * _.isInteger(Number.MIN_VALUE); - * // => false - * - * _.isInteger(Infinity); - * // => false - * - * _.isInteger('3'); - * // => false - */ - function isInteger(value) { - return typeof value == 'number' && value == toInteger(value); - } - - /** - * Checks if `value` is a valid array-like length. - * - * **Note:** This method is loosely based on - * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. - * @example - * - * _.isLength(3); - * // => true - * - * _.isLength(Number.MIN_VALUE); - * // => false - * - * _.isLength(Infinity); - * // => false - * - * _.isLength('3'); - * // => false - */ - function isLength(value) { - return typeof value == 'number' && - value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; - } - - /** - * Checks if `value` is the - * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) - * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an object, else `false`. - * @example - * - * _.isObject({}); - * // => true - * - * _.isObject([1, 2, 3]); - * // => true - * - * _.isObject(_.noop); - * // => true - * - * _.isObject(null); - * // => false - */ - function isObject(value) { - var type = typeof value; - return value != null && (type == 'object' || type == 'function'); - } - - /** - * Checks if `value` is object-like. A value is object-like if it's not `null` - * and has a `typeof` result of "object". - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is object-like, else `false`. - * @example - * - * _.isObjectLike({}); - * // => true - * - * _.isObjectLike([1, 2, 3]); - * // => true - * - * _.isObjectLike(_.noop); - * // => false - * - * _.isObjectLike(null); - * // => false - */ - function isObjectLike(value) { - return value != null && typeof value == 'object'; - } - - /** - * Checks if `value` is classified as a `Map` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - * @example - * - * _.isMap(new Map); - * // => true - * - * _.isMap(new WeakMap); - * // => false - */ - var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; - - /** - * Performs a partial deep comparison between `object` and `source` to - * determine if `object` contains equivalent property values. - * - * **Note:** This method is equivalent to `_.matches` when `source` is - * partially applied. - * - * Partial comparisons will match empty array and empty object `source` - * values against any array or object value, respectively. See `_.isEqual` - * for a list of supported value comparisons. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * - * _.isMatch(object, { 'b': 2 }); - * // => true - * - * _.isMatch(object, { 'b': 1 }); - * // => false - */ - function isMatch(object, source) { - return object === source || baseIsMatch(object, source, getMatchData(source)); - } - - /** - * This method is like `_.isMatch` except that it accepts `customizer` which - * is invoked to compare values. If `customizer` returns `undefined`, comparisons - * are handled by the method instead. The `customizer` is invoked with five - * arguments: (objValue, srcValue, index|key, object, source). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - * @example - * - * function isGreeting(value) { - * return /^h(?:i|ello)$/.test(value); - * } - * - * function customizer(objValue, srcValue) { - * if (isGreeting(objValue) && isGreeting(srcValue)) { - * return true; - * } - * } - * - * var object = { 'greeting': 'hello' }; - * var source = { 'greeting': 'hi' }; - * - * _.isMatchWith(object, source, customizer); - * // => true - */ - function isMatchWith(object, source, customizer) { - customizer = typeof customizer == 'function' ? customizer : undefined; - return baseIsMatch(object, source, getMatchData(source), customizer); - } - - /** - * Checks if `value` is `NaN`. - * - * **Note:** This method is based on - * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as - * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for - * `undefined` and other non-number values. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - * @example - * - * _.isNaN(NaN); - * // => true - * - * _.isNaN(new Number(NaN)); - * // => true - * - * isNaN(undefined); - * // => true - * - * _.isNaN(undefined); - * // => false - */ - function isNaN(value) { - // An `NaN` primitive is the only value that is not equal to itself. - // Perform the `toStringTag` check first to avoid errors with some - // ActiveX objects in IE. - return isNumber(value) && value != +value; - } - - /** - * Checks if `value` is a pristine native function. - * - * **Note:** This method can't reliably detect native functions in the presence - * of the core-js package because core-js circumvents this kind of detection. - * Despite multiple requests, the core-js maintainer has made it clear: any - * attempt to fix the detection will be obstructed. As a result, we're left - * with little choice but to throw an error. Unfortunately, this also affects - * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill), - * which rely on core-js. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a native function, - * else `false`. - * @example - * - * _.isNative(Array.prototype.push); - * // => true - * - * _.isNative(_); - * // => false - */ - function isNative(value) { - if (isMaskable(value)) { - throw new Error(CORE_ERROR_TEXT); - } - return baseIsNative(value); - } - - /** - * Checks if `value` is `null`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `null`, else `false`. - * @example - * - * _.isNull(null); - * // => true - * - * _.isNull(void 0); - * // => false - */ - function isNull(value) { - return value === null; - } - - /** - * Checks if `value` is `null` or `undefined`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is nullish, else `false`. - * @example - * - * _.isNil(null); - * // => true - * - * _.isNil(void 0); - * // => true - * - * _.isNil(NaN); - * // => false - */ - function isNil(value) { - return value == null; - } - - /** - * Checks if `value` is classified as a `Number` primitive or object. - * - * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are - * classified as numbers, use the `_.isFinite` method. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a number, else `false`. - * @example - * - * _.isNumber(3); - * // => true - * - * _.isNumber(Number.MIN_VALUE); - * // => true - * - * _.isNumber(Infinity); - * // => true - * - * _.isNumber('3'); - * // => false - */ - function isNumber(value) { - return typeof value == 'number' || - (isObjectLike(value) && baseGetTag(value) == numberTag); - } - - /** - * Checks if `value` is a plain object, that is, an object created by the - * `Object` constructor or one with a `[[Prototype]]` of `null`. - * - * @static - * @memberOf _ - * @since 0.8.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * _.isPlainObject(new Foo); - * // => false - * - * _.isPlainObject([1, 2, 3]); - * // => false - * - * _.isPlainObject({ 'x': 0, 'y': 0 }); - * // => true - * - * _.isPlainObject(Object.create(null)); - * // => true - */ - function isPlainObject(value) { - if (!isObjectLike(value) || baseGetTag(value) != objectTag) { - return false; - } - var proto = getPrototype(value); - if (proto === null) { - return true; - } - var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; - return typeof Ctor == 'function' && Ctor instanceof Ctor && - funcToString.call(Ctor) == objectCtorString; - } - - /** - * Checks if `value` is classified as a `RegExp` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - * @example - * - * _.isRegExp(/abc/); - * // => true - * - * _.isRegExp('/abc/'); - * // => false - */ - var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; - - /** - * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754 - * double precision number which isn't the result of a rounded unsafe integer. - * - * **Note:** This method is based on - * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`. - * @example - * - * _.isSafeInteger(3); - * // => true - * - * _.isSafeInteger(Number.MIN_VALUE); - * // => false - * - * _.isSafeInteger(Infinity); - * // => false - * - * _.isSafeInteger('3'); - * // => false - */ - function isSafeInteger(value) { - return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER; - } - - /** - * Checks if `value` is classified as a `Set` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - * @example - * - * _.isSet(new Set); - * // => true - * - * _.isSet(new WeakSet); - * // => false - */ - var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; - - /** - * Checks if `value` is classified as a `String` primitive or object. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a string, else `false`. - * @example - * - * _.isString('abc'); - * // => true - * - * _.isString(1); - * // => false - */ - function isString(value) { - return typeof value == 'string' || - (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); - } - - /** - * Checks if `value` is classified as a `Symbol` primitive or object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. - * @example - * - * _.isSymbol(Symbol.iterator); - * // => true - * - * _.isSymbol('abc'); - * // => false - */ - function isSymbol(value) { - return typeof value == 'symbol' || - (isObjectLike(value) && baseGetTag(value) == symbolTag); - } - - /** - * Checks if `value` is classified as a typed array. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - * @example - * - * _.isTypedArray(new Uint8Array); - * // => true - * - * _.isTypedArray([]); - * // => false - */ - var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; - - /** - * Checks if `value` is `undefined`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. - * @example - * - * _.isUndefined(void 0); - * // => true - * - * _.isUndefined(null); - * // => false - */ - function isUndefined(value) { - return value === undefined; - } - - /** - * Checks if `value` is classified as a `WeakMap` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a weak map, else `false`. - * @example - * - * _.isWeakMap(new WeakMap); - * // => true - * - * _.isWeakMap(new Map); - * // => false - */ - function isWeakMap(value) { - return isObjectLike(value) && getTag(value) == weakMapTag; - } - - /** - * Checks if `value` is classified as a `WeakSet` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a weak set, else `false`. - * @example - * - * _.isWeakSet(new WeakSet); - * // => true - * - * _.isWeakSet(new Set); - * // => false - */ - function isWeakSet(value) { - return isObjectLike(value) && baseGetTag(value) == weakSetTag; - } - - /** - * Checks if `value` is less than `other`. - * - * @static - * @memberOf _ - * @since 3.9.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than `other`, - * else `false`. - * @see _.gt - * @example - * - * _.lt(1, 3); - * // => true - * - * _.lt(3, 3); - * // => false - * - * _.lt(3, 1); - * // => false - */ - var lt = createRelationalOperation(baseLt); - - /** - * Checks if `value` is less than or equal to `other`. - * - * @static - * @memberOf _ - * @since 3.9.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than or equal to - * `other`, else `false`. - * @see _.gte - * @example - * - * _.lte(1, 3); - * // => true - * - * _.lte(3, 3); - * // => true - * - * _.lte(3, 1); - * // => false - */ - var lte = createRelationalOperation(function(value, other) { - return value <= other; - }); - - /** - * Converts `value` to an array. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to convert. - * @returns {Array} Returns the converted array. - * @example - * - * _.toArray({ 'a': 1, 'b': 2 }); - * // => [1, 2] - * - * _.toArray('abc'); - * // => ['a', 'b', 'c'] - * - * _.toArray(1); - * // => [] - * - * _.toArray(null); - * // => [] - */ - function toArray(value) { - if (!value) { - return []; - } - if (isArrayLike(value)) { - return isString(value) ? stringToArray(value) : copyArray(value); - } - if (symIterator && value[symIterator]) { - return iteratorToArray(value[symIterator]()); - } - var tag = getTag(value), - func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); - - return func(value); - } - - /** - * Converts `value` to a finite number. - * - * @static - * @memberOf _ - * @since 4.12.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted number. - * @example - * - * _.toFinite(3.2); - * // => 3.2 - * - * _.toFinite(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toFinite(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toFinite('3.2'); - * // => 3.2 - */ - function toFinite(value) { - if (!value) { - return value === 0 ? value : 0; - } - value = toNumber(value); - if (value === INFINITY || value === -INFINITY) { - var sign = (value < 0 ? -1 : 1); - return sign * MAX_INTEGER; - } - return value === value ? value : 0; - } - - /** - * Converts `value` to an integer. - * - * **Note:** This method is loosely based on - * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toInteger(3.2); - * // => 3 - * - * _.toInteger(Number.MIN_VALUE); - * // => 0 - * - * _.toInteger(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toInteger('3.2'); - * // => 3 - */ - function toInteger(value) { - var result = toFinite(value), - remainder = result % 1; - - return result === result ? (remainder ? result - remainder : result) : 0; - } - - /** - * Converts `value` to an integer suitable for use as the length of an - * array-like object. - * - * **Note:** This method is based on - * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toLength(3.2); - * // => 3 - * - * _.toLength(Number.MIN_VALUE); - * // => 0 - * - * _.toLength(Infinity); - * // => 4294967295 - * - * _.toLength('3.2'); - * // => 3 - */ - function toLength(value) { - return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0; - } - - /** - * Converts `value` to a number. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to process. - * @returns {number} Returns the number. - * @example - * - * _.toNumber(3.2); - * // => 3.2 - * - * _.toNumber(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toNumber(Infinity); - * // => Infinity - * - * _.toNumber('3.2'); - * // => 3.2 - */ - function toNumber(value) { - if (typeof value == 'number') { - return value; - } - if (isSymbol(value)) { - return NAN; - } - if (isObject(value)) { - var other = typeof value.valueOf == 'function' ? value.valueOf() : value; - value = isObject(other) ? (other + '') : other; - } - if (typeof value != 'string') { - return value === 0 ? value : +value; - } - value = value.replace(reTrim, ''); - var isBinary = reIsBinary.test(value); - return (isBinary || reIsOctal.test(value)) - ? freeParseInt(value.slice(2), isBinary ? 2 : 8) - : (reIsBadHex.test(value) ? NAN : +value); - } - - /** - * Converts `value` to a plain object flattening inherited enumerable string - * keyed properties of `value` to own properties of the plain object. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {Object} Returns the converted plain object. - * @example - * - * function Foo() { - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.assign({ 'a': 1 }, new Foo); - * // => { 'a': 1, 'b': 2 } - * - * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); - * // => { 'a': 1, 'b': 2, 'c': 3 } - */ - function toPlainObject(value) { - return copyObject(value, keysIn(value)); - } - - /** - * Converts `value` to a safe integer. A safe integer can be compared and - * represented correctly. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toSafeInteger(3.2); - * // => 3 - * - * _.toSafeInteger(Number.MIN_VALUE); - * // => 0 - * - * _.toSafeInteger(Infinity); - * // => 9007199254740991 - * - * _.toSafeInteger('3.2'); - * // => 3 - */ - function toSafeInteger(value) { - return value - ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER) - : (value === 0 ? value : 0); - } - - /** - * Converts `value` to a string. An empty string is returned for `null` - * and `undefined` values. The sign of `-0` is preserved. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - * @example - * - * _.toString(null); - * // => '' - * - * _.toString(-0); - * // => '-0' - * - * _.toString([1, 2, 3]); - * // => '1,2,3' - */ - function toString(value) { - return value == null ? '' : baseToString(value); - } - - /*------------------------------------------------------------------------*/ - - /** - * Assigns own enumerable string keyed properties of source objects to the - * destination object. Source objects are applied from left to right. - * Subsequent sources overwrite property assignments of previous sources. - * - * **Note:** This method mutates `object` and is loosely based on - * [`Object.assign`](https://mdn.io/Object/assign). - * - * @static - * @memberOf _ - * @since 0.10.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.assignIn - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * function Bar() { - * this.c = 3; - * } - * - * Foo.prototype.b = 2; - * Bar.prototype.d = 4; - * - * _.assign({ 'a': 0 }, new Foo, new Bar); - * // => { 'a': 1, 'c': 3 } - */ - var assign = createAssigner(function(object, source) { - if (isPrototype(source) || isArrayLike(source)) { - copyObject(source, keys(source), object); - return; - } - for (var key in source) { - if (hasOwnProperty.call(source, key)) { - assignValue(object, key, source[key]); - } - } - }); - - /** - * This method is like `_.assign` except that it iterates over own and - * inherited source properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias extend - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.assign - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * function Bar() { - * this.c = 3; - * } - * - * Foo.prototype.b = 2; - * Bar.prototype.d = 4; - * - * _.assignIn({ 'a': 0 }, new Foo, new Bar); - * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } - */ - var assignIn = createAssigner(function(object, source) { - copyObject(source, keysIn(source), object); - }); - - /** - * This method is like `_.assignIn` except that it accepts `customizer` - * which is invoked to produce the assigned values. If `customizer` returns - * `undefined`, assignment is handled by the method instead. The `customizer` - * is invoked with five arguments: (objValue, srcValue, key, object, source). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias extendWith - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} [customizer] The function to customize assigned values. - * @returns {Object} Returns `object`. - * @see _.assignWith - * @example - * - * function customizer(objValue, srcValue) { - * return _.isUndefined(objValue) ? srcValue : objValue; - * } - * - * var defaults = _.partialRight(_.assignInWith, customizer); - * - * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var assignInWith = createAssigner(function(object, source, srcIndex, customizer) { - copyObject(source, keysIn(source), object, customizer); - }); - - /** - * This method is like `_.assign` except that it accepts `customizer` - * which is invoked to produce the assigned values. If `customizer` returns - * `undefined`, assignment is handled by the method instead. The `customizer` - * is invoked with five arguments: (objValue, srcValue, key, object, source). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} [customizer] The function to customize assigned values. - * @returns {Object} Returns `object`. - * @see _.assignInWith - * @example - * - * function customizer(objValue, srcValue) { - * return _.isUndefined(objValue) ? srcValue : objValue; - * } - * - * var defaults = _.partialRight(_.assignWith, customizer); - * - * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var assignWith = createAssigner(function(object, source, srcIndex, customizer) { - copyObject(source, keys(source), object, customizer); - }); - - /** - * Creates an array of values corresponding to `paths` of `object`. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Array} Returns the picked values. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; - * - * _.at(object, ['a[0].b.c', 'a[1]']); - * // => [3, 4] - */ - var at = flatRest(baseAt); - - /** - * Creates an object that inherits from the `prototype` object. If a - * `properties` object is given, its own enumerable string keyed properties - * are assigned to the created object. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Object - * @param {Object} prototype The object to inherit from. - * @param {Object} [properties] The properties to assign to the object. - * @returns {Object} Returns the new object. - * @example - * - * function Shape() { - * this.x = 0; - * this.y = 0; - * } - * - * function Circle() { - * Shape.call(this); - * } - * - * Circle.prototype = _.create(Shape.prototype, { - * 'constructor': Circle - * }); - * - * var circle = new Circle; - * circle instanceof Circle; - * // => true - * - * circle instanceof Shape; - * // => true - */ - function create(prototype, properties) { - var result = baseCreate(prototype); - return properties == null ? result : baseAssign(result, properties); - } - - /** - * Assigns own and inherited enumerable string keyed properties of source - * objects to the destination object for all destination properties that - * resolve to `undefined`. Source objects are applied from left to right. - * Once a property is set, additional values of the same property are ignored. - * - * **Note:** This method mutates `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaultsDeep - * @example - * - * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var defaults = baseRest(function(object, sources) { - object = Object(object); - - var index = -1; - var length = sources.length; - var guard = length > 2 ? sources[2] : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - length = 1; - } - - while (++index < length) { - var source = sources[index]; - var props = keysIn(source); - var propsIndex = -1; - var propsLength = props.length; - - while (++propsIndex < propsLength) { - var key = props[propsIndex]; - var value = object[key]; - - if (value === undefined || - (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { - object[key] = source[key]; - } - } - } - - return object; - }); - - /** - * This method is like `_.defaults` except that it recursively assigns - * default properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 3.10.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaults - * @example - * - * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); - * // => { 'a': { 'b': 2, 'c': 3 } } - */ - var defaultsDeep = baseRest(function(args) { - args.push(undefined, customDefaultsMerge); - return apply(mergeWith, undefined, args); - }); - - /** - * This method is like `_.find` except that it returns the key of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findKey(users, function(o) { return o.age < 40; }); - * // => 'barney' (iteration order is not guaranteed) - * - * // The `_.matches` iteratee shorthand. - * _.findKey(users, { 'age': 1, 'active': true }); - * // => 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findKey(users, 'active'); - * // => 'barney' - */ - function findKey(object, predicate) { - return baseFindKey(object, getIteratee(predicate, 3), baseForOwn); - } - - /** - * This method is like `_.findKey` except that it iterates over elements of - * a collection in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findLastKey(users, function(o) { return o.age < 40; }); - * // => returns 'pebbles' assuming `_.findKey` returns 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.findLastKey(users, { 'age': 36, 'active': true }); - * // => 'barney' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findLastKey(users, 'active'); - * // => 'pebbles' - */ - function findLastKey(object, predicate) { - return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight); - } - - /** - * Iterates over own and inherited enumerable string keyed properties of an - * object and invokes `iteratee` for each property. The iteratee is invoked - * with three arguments: (value, key, object). Iteratee functions may exit - * iteration early by explicitly returning `false`. - * - * @static - * @memberOf _ - * @since 0.3.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Object} Returns `object`. - * @see _.forInRight - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.forIn(new Foo, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed). - */ - function forIn(object, iteratee) { - return object == null - ? object - : baseFor(object, getIteratee(iteratee, 3), keysIn); - } - - /** - * This method is like `_.forIn` except that it iterates over properties of - * `object` in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Object} Returns `object`. - * @see _.forIn - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.forInRight(new Foo, function(value, key) { - * console.log(key); - * }); - * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'. - */ - function forInRight(object, iteratee) { - return object == null - ? object - : baseForRight(object, getIteratee(iteratee, 3), keysIn); - } - - /** - * Iterates over own enumerable string keyed properties of an object and - * invokes `iteratee` for each property. The iteratee is invoked with three - * arguments: (value, key, object). Iteratee functions may exit iteration - * early by explicitly returning `false`. - * - * @static - * @memberOf _ - * @since 0.3.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Object} Returns `object`. - * @see _.forOwnRight - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.forOwn(new Foo, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a' then 'b' (iteration order is not guaranteed). - */ - function forOwn(object, iteratee) { - return object && baseForOwn(object, getIteratee(iteratee, 3)); - } - - /** - * This method is like `_.forOwn` except that it iterates over properties of - * `object` in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Object} Returns `object`. - * @see _.forOwn - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.forOwnRight(new Foo, function(value, key) { - * console.log(key); - * }); - * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'. - */ - function forOwnRight(object, iteratee) { - return object && baseForOwnRight(object, getIteratee(iteratee, 3)); - } - - /** - * Creates an array of function property names from own enumerable properties - * of `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to inspect. - * @returns {Array} Returns the function names. - * @see _.functionsIn - * @example - * - * function Foo() { - * this.a = _.constant('a'); - * this.b = _.constant('b'); - * } - * - * Foo.prototype.c = _.constant('c'); - * - * _.functions(new Foo); - * // => ['a', 'b'] - */ - function functions(object) { - return object == null ? [] : baseFunctions(object, keys(object)); - } - - /** - * Creates an array of function property names from own and inherited - * enumerable properties of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to inspect. - * @returns {Array} Returns the function names. - * @see _.functions - * @example - * - * function Foo() { - * this.a = _.constant('a'); - * this.b = _.constant('b'); - * } - * - * Foo.prototype.c = _.constant('c'); - * - * _.functionsIn(new Foo); - * // => ['a', 'b', 'c'] - */ - function functionsIn(object) { - return object == null ? [] : baseFunctions(object, keysIn(object)); - } - - /** - * Gets the value at `path` of `object`. If the resolved value is - * `undefined`, the `defaultValue` is returned in its place. - * - * @static - * @memberOf _ - * @since 3.7.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.get(object, 'a[0].b.c'); - * // => 3 - * - * _.get(object, ['a', '0', 'b', 'c']); - * // => 3 - * - * _.get(object, 'a.b.c', 'default'); - * // => 'default' - */ - function get(object, path, defaultValue) { - var result = object == null ? undefined : baseGet(object, path); - return result === undefined ? defaultValue : result; - } - - /** - * Checks if `path` is a direct property of `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = { 'a': { 'b': 2 } }; - * var other = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.has(object, 'a'); - * // => true - * - * _.has(object, 'a.b'); - * // => true - * - * _.has(object, ['a', 'b']); - * // => true - * - * _.has(other, 'a'); - * // => false - */ - function has(object, path) { - return object != null && hasPath(object, path, baseHas); - } - - /** - * Checks if `path` is a direct or inherited property of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.hasIn(object, 'a'); - * // => true - * - * _.hasIn(object, 'a.b'); - * // => true - * - * _.hasIn(object, ['a', 'b']); - * // => true - * - * _.hasIn(object, 'b'); - * // => false - */ - function hasIn(object, path) { - return object != null && hasPath(object, path, baseHasIn); - } - - /** - * Creates an object composed of the inverted keys and values of `object`. - * If `object` contains duplicate values, subsequent values overwrite - * property assignments of previous values. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Object - * @param {Object} object The object to invert. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invert(object); - * // => { '1': 'c', '2': 'b' } - */ - var invert = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - result[value] = key; - }, constant(identity)); - - /** - * This method is like `_.invert` except that the inverted object is generated - * from the results of running each element of `object` thru `iteratee`. The - * corresponding inverted value of each inverted key is an array of keys - * responsible for generating the inverted value. The iteratee is invoked - * with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.1.0 - * @category Object - * @param {Object} object The object to invert. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invertBy(object); - * // => { '1': ['a', 'c'], '2': ['b'] } - * - * _.invertBy(object, function(value) { - * return 'group' + value; - * }); - * // => { 'group1': ['a', 'c'], 'group2': ['b'] } - */ - var invertBy = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - if (hasOwnProperty.call(result, value)) { - result[value].push(key); - } else { - result[value] = [key]; - } - }, getIteratee); - - /** - * Invokes the method at `path` of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the method to invoke. - * @param {...*} [args] The arguments to invoke the method with. - * @returns {*} Returns the result of the invoked method. - * @example - * - * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] }; - * - * _.invoke(object, 'a[0].b.c.slice', 1, 3); - * // => [2, 3] - */ - var invoke = baseRest(baseInvoke); - - /** - * Creates an array of the own enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. See the - * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * for more details. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keys(new Foo); - * // => ['a', 'b'] (iteration order is not guaranteed) - * - * _.keys('hi'); - * // => ['0', '1'] - */ - function keys(object) { - return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); - } - - /** - * Creates an array of the own and inherited enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keysIn(new Foo); - * // => ['a', 'b', 'c'] (iteration order is not guaranteed) - */ - function keysIn(object) { - return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); - } - - /** - * The opposite of `_.mapValues`; this method creates an object with the - * same values as `object` and keys generated by running each own enumerable - * string keyed property of `object` thru `iteratee`. The iteratee is invoked - * with three arguments: (value, key, object). - * - * @static - * @memberOf _ - * @since 3.8.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Object} Returns the new mapped object. - * @see _.mapValues - * @example - * - * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) { - * return key + value; - * }); - * // => { 'a1': 1, 'b2': 2 } - */ - function mapKeys(object, iteratee) { - var result = {}; - iteratee = getIteratee(iteratee, 3); - - baseForOwn(object, function(value, key, object) { - baseAssignValue(result, iteratee(value, key, object), value); - }); - return result; - } - - /** - * Creates an object with the same keys as `object` and values generated - * by running each own enumerable string keyed property of `object` thru - * `iteratee`. The iteratee is invoked with three arguments: - * (value, key, object). - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Object} Returns the new mapped object. - * @see _.mapKeys - * @example - * - * var users = { - * 'fred': { 'user': 'fred', 'age': 40 }, - * 'pebbles': { 'user': 'pebbles', 'age': 1 } - * }; - * - * _.mapValues(users, function(o) { return o.age; }); - * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) - * - * // The `_.property` iteratee shorthand. - * _.mapValues(users, 'age'); - * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) - */ - function mapValues(object, iteratee) { - var result = {}; - iteratee = getIteratee(iteratee, 3); - - baseForOwn(object, function(value, key, object) { - baseAssignValue(result, key, iteratee(value, key, object)); - }); - return result; - } - - /** - * This method is like `_.assign` except that it recursively merges own and - * inherited enumerable string keyed properties of source objects into the - * destination object. Source properties that resolve to `undefined` are - * skipped if a destination value exists. Array and plain object properties - * are merged recursively. Other objects and value types are overridden by - * assignment. Source objects are applied from left to right. Subsequent - * sources overwrite property assignments of previous sources. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @example - * - * var object = { - * 'a': [{ 'b': 2 }, { 'd': 4 }] - * }; - * - * var other = { - * 'a': [{ 'c': 3 }, { 'e': 5 }] - * }; - * - * _.merge(object, other); - * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } - */ - var merge = createAssigner(function(object, source, srcIndex) { - baseMerge(object, source, srcIndex); - }); - - /** - * This method is like `_.merge` except that it accepts `customizer` which - * is invoked to produce the merged values of the destination and source - * properties. If `customizer` returns `undefined`, merging is handled by the - * method instead. The `customizer` is invoked with six arguments: - * (objValue, srcValue, key, object, source, stack). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} customizer The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * function customizer(objValue, srcValue) { - * if (_.isArray(objValue)) { - * return objValue.concat(srcValue); - * } - * } - * - * var object = { 'a': [1], 'b': [2] }; - * var other = { 'a': [3], 'b': [4] }; - * - * _.mergeWith(object, other, customizer); - * // => { 'a': [1, 3], 'b': [2, 4] } - */ - var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { - baseMerge(object, source, srcIndex, customizer); - }); - - /** - * The opposite of `_.pick`; this method creates an object composed of the - * own and inherited enumerable property paths of `object` that are not omitted. - * - * **Note:** This method is considerably slower than `_.pick`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to omit. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omit(object, ['a', 'c']); - * // => { 'b': '2' } - */ - var omit = flatRest(function(object, paths) { - var result = {}; - if (object == null) { - return result; - } - var isDeep = false; - paths = arrayMap(paths, function(path) { - path = castPath(path, object); - isDeep || (isDeep = path.length > 1); - return path; - }); - copyObject(object, getAllKeysIn(object), result); - if (isDeep) { - result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); - } - var length = paths.length; - while (length--) { - baseUnset(result, paths[length]); - } - return result; - }); - - /** - * The opposite of `_.pickBy`; this method creates an object composed of - * the own and inherited enumerable string keyed properties of `object` that - * `predicate` doesn't return truthy for. The predicate is invoked with two - * arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omitBy(object, _.isNumber); - * // => { 'b': '2' } - */ - function omitBy(object, predicate) { - return pickBy(object, negate(getIteratee(predicate))); - } - - /** - * Creates an object composed of the picked `object` properties. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pick(object, ['a', 'c']); - * // => { 'a': 1, 'c': 3 } - */ - var pick = flatRest(function(object, paths) { - return object == null ? {} : basePick(object, paths); - }); - - /** - * Creates an object composed of the `object` properties `predicate` returns - * truthy for. The predicate is invoked with two arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pickBy(object, _.isNumber); - * // => { 'a': 1, 'c': 3 } - */ - function pickBy(object, predicate) { - if (object == null) { - return {}; - } - var props = arrayMap(getAllKeysIn(object), function(prop) { - return [prop]; - }); - predicate = getIteratee(predicate); - return basePickBy(object, props, function(value, path) { - return predicate(value, path[0]); - }); - } - - /** - * This method is like `_.get` except that if the resolved value is a - * function it's invoked with the `this` binding of its parent object and - * its result is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to resolve. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; - * - * _.result(object, 'a[0].b.c1'); - * // => 3 - * - * _.result(object, 'a[0].b.c2'); - * // => 4 - * - * _.result(object, 'a[0].b.c3', 'default'); - * // => 'default' - * - * _.result(object, 'a[0].b.c3', _.constant('default')); - * // => 'default' - */ - function result(object, path, defaultValue) { - path = castPath(path, object); - - var index = -1, - length = path.length; - - // Ensure the loop is entered when path is empty. - if (!length) { - length = 1; - object = undefined; - } - while (++index < length) { - var value = object == null ? undefined : object[toKey(path[index])]; - if (value === undefined) { - index = length; - value = defaultValue; - } - object = isFunction(value) ? value.call(object) : value; - } - return object; - } - - /** - * Sets the value at `path` of `object`. If a portion of `path` doesn't exist, - * it's created. Arrays are created for missing index properties while objects - * are created for all other missing properties. Use `_.setWith` to customize - * `path` creation. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 3.7.0 - * @category Object - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @returns {Object} Returns `object`. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.set(object, 'a[0].b.c', 4); - * console.log(object.a[0].b.c); - * // => 4 - * - * _.set(object, ['x', '0', 'y', 'z'], 5); - * console.log(object.x[0].y.z); - * // => 5 - */ - function set(object, path, value) { - return object == null ? object : baseSet(object, path, value); - } - - /** - * This method is like `_.set` except that it accepts `customizer` which is - * invoked to produce the objects of `path`. If `customizer` returns `undefined` - * path creation is handled by the method instead. The `customizer` is invoked - * with three arguments: (nsValue, key, nsObject). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @param {Function} [customizer] The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * var object = {}; - * - * _.setWith(object, '[0][1]', 'a', Object); - * // => { '0': { '1': 'a' } } - */ - function setWith(object, path, value, customizer) { - customizer = typeof customizer == 'function' ? customizer : undefined; - return object == null ? object : baseSet(object, path, value, customizer); - } - - /** - * Creates an array of own enumerable string keyed-value pairs for `object` - * which can be consumed by `_.fromPairs`. If `object` is a map or set, its - * entries are returned. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias entries - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the key-value pairs. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.toPairs(new Foo); - * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed) - */ - var toPairs = createToPairs(keys); - - /** - * Creates an array of own and inherited enumerable string keyed-value pairs - * for `object` which can be consumed by `_.fromPairs`. If `object` is a map - * or set, its entries are returned. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias entriesIn - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the key-value pairs. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.toPairsIn(new Foo); - * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed) - */ - var toPairsIn = createToPairs(keysIn); - - /** - * An alternative to `_.reduce`; this method transforms `object` to a new - * `accumulator` object which is the result of running each of its own - * enumerable string keyed properties thru `iteratee`, with each invocation - * potentially mutating the `accumulator` object. If `accumulator` is not - * provided, a new object with the same `[[Prototype]]` will be used. The - * iteratee is invoked with four arguments: (accumulator, value, key, object). - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * @static - * @memberOf _ - * @since 1.3.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The custom accumulator value. - * @returns {*} Returns the accumulated value. - * @example - * - * _.transform([2, 3, 4], function(result, n) { - * result.push(n *= n); - * return n % 2 == 0; - * }, []); - * // => [4, 9] - * - * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { - * (result[value] || (result[value] = [])).push(key); - * }, {}); - * // => { '1': ['a', 'c'], '2': ['b'] } - */ - function transform(object, iteratee, accumulator) { - var isArr = isArray(object), - isArrLike = isArr || isBuffer(object) || isTypedArray(object); - - iteratee = getIteratee(iteratee, 4); - if (accumulator == null) { - var Ctor = object && object.constructor; - if (isArrLike) { - accumulator = isArr ? new Ctor : []; - } - else if (isObject(object)) { - accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {}; - } - else { - accumulator = {}; - } - } - (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) { - return iteratee(accumulator, value, index, object); - }); - return accumulator; - } - - /** - * Removes the property at `path` of `object`. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to unset. - * @returns {boolean} Returns `true` if the property is deleted, else `false`. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 7 } }] }; - * _.unset(object, 'a[0].b.c'); - * // => true - * - * console.log(object); - * // => { 'a': [{ 'b': {} }] }; - * - * _.unset(object, ['a', '0', 'b', 'c']); - * // => true - * - * console.log(object); - * // => { 'a': [{ 'b': {} }] }; - */ - function unset(object, path) { - return object == null ? true : baseUnset(object, path); - } - - /** - * This method is like `_.set` except that accepts `updater` to produce the - * value to set. Use `_.updateWith` to customize `path` creation. The `updater` - * is invoked with one argument: (value). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.6.0 - * @category Object - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {Function} updater The function to produce the updated value. - * @returns {Object} Returns `object`. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.update(object, 'a[0].b.c', function(n) { return n * n; }); - * console.log(object.a[0].b.c); - * // => 9 - * - * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; }); - * console.log(object.x[0].y.z); - * // => 0 - */ - function update(object, path, updater) { - return object == null ? object : baseUpdate(object, path, castFunction(updater)); - } - - /** - * This method is like `_.update` except that it accepts `customizer` which is - * invoked to produce the objects of `path`. If `customizer` returns `undefined` - * path creation is handled by the method instead. The `customizer` is invoked - * with three arguments: (nsValue, key, nsObject). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.6.0 - * @category Object - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {Function} updater The function to produce the updated value. - * @param {Function} [customizer] The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * var object = {}; - * - * _.updateWith(object, '[0][1]', _.constant('a'), Object); - * // => { '0': { '1': 'a' } } - */ - function updateWith(object, path, updater, customizer) { - customizer = typeof customizer == 'function' ? customizer : undefined; - return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer); - } - - /** - * Creates an array of the own enumerable string keyed property values of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property values. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.values(new Foo); - * // => [1, 2] (iteration order is not guaranteed) - * - * _.values('hi'); - * // => ['h', 'i'] - */ - function values(object) { - return object == null ? [] : baseValues(object, keys(object)); - } - - /** - * Creates an array of the own and inherited enumerable string keyed property - * values of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property values. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.valuesIn(new Foo); - * // => [1, 2, 3] (iteration order is not guaranteed) - */ - function valuesIn(object) { - return object == null ? [] : baseValues(object, keysIn(object)); - } - - /*------------------------------------------------------------------------*/ - - /** - * Clamps `number` within the inclusive `lower` and `upper` bounds. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Number - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - * @example - * - * _.clamp(-10, -5, 5); - * // => -5 - * - * _.clamp(10, -5, 5); - * // => 5 - */ - function clamp(number, lower, upper) { - if (upper === undefined) { - upper = lower; - lower = undefined; - } - if (upper !== undefined) { - upper = toNumber(upper); - upper = upper === upper ? upper : 0; - } - if (lower !== undefined) { - lower = toNumber(lower); - lower = lower === lower ? lower : 0; - } - return baseClamp(toNumber(number), lower, upper); - } - - /** - * Checks if `n` is between `start` and up to, but not including, `end`. If - * `end` is not specified, it's set to `start` with `start` then set to `0`. - * If `start` is greater than `end` the params are swapped to support - * negative ranges. - * - * @static - * @memberOf _ - * @since 3.3.0 - * @category Number - * @param {number} number The number to check. - * @param {number} [start=0] The start of the range. - * @param {number} end The end of the range. - * @returns {boolean} Returns `true` if `number` is in the range, else `false`. - * @see _.range, _.rangeRight - * @example - * - * _.inRange(3, 2, 4); - * // => true - * - * _.inRange(4, 8); - * // => true - * - * _.inRange(4, 2); - * // => false - * - * _.inRange(2, 2); - * // => false - * - * _.inRange(1.2, 2); - * // => true - * - * _.inRange(5.2, 4); - * // => false - * - * _.inRange(-3, -2, -6); - * // => true - */ - function inRange(number, start, end) { - start = toFinite(start); - if (end === undefined) { - end = start; - start = 0; - } else { - end = toFinite(end); - } - number = toNumber(number); - return baseInRange(number, start, end); - } - - /** - * Produces a random number between the inclusive `lower` and `upper` bounds. - * If only one argument is provided a number between `0` and the given number - * is returned. If `floating` is `true`, or either `lower` or `upper` are - * floats, a floating-point number is returned instead of an integer. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Number - * @param {number} [lower=0] The lower bound. - * @param {number} [upper=1] The upper bound. - * @param {boolean} [floating] Specify returning a floating-point number. - * @returns {number} Returns the random number. - * @example - * - * _.random(0, 5); - * // => an integer between 0 and 5 - * - * _.random(5); - * // => also an integer between 0 and 5 - * - * _.random(5, true); - * // => a floating-point number between 0 and 5 - * - * _.random(1.2, 5.2); - * // => a floating-point number between 1.2 and 5.2 - */ - function random(lower, upper, floating) { - if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { - upper = floating = undefined; - } - if (floating === undefined) { - if (typeof upper == 'boolean') { - floating = upper; - upper = undefined; - } - else if (typeof lower == 'boolean') { - floating = lower; - lower = undefined; - } - } - if (lower === undefined && upper === undefined) { - lower = 0; - upper = 1; - } - else { - lower = toFinite(lower); - if (upper === undefined) { - upper = lower; - lower = 0; - } else { - upper = toFinite(upper); - } - } - if (lower > upper) { - var temp = lower; - lower = upper; - upper = temp; - } - if (floating || lower % 1 || upper % 1) { - var rand = nativeRandom(); - return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); - } - return baseRandom(lower, upper); - } - - /*------------------------------------------------------------------------*/ - - /** - * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to convert. - * @returns {string} Returns the camel cased string. - * @example - * - * _.camelCase('Foo Bar'); - * // => 'fooBar' - * - * _.camelCase('--foo-bar--'); - * // => 'fooBar' - * - * _.camelCase('__FOO_BAR__'); - * // => 'fooBar' - */ - var camelCase = createCompounder(function(result, word, index) { - word = word.toLowerCase(); - return result + (index ? capitalize(word) : word); - }); - - /** - * Converts the first character of `string` to upper case and the remaining - * to lower case. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to capitalize. - * @returns {string} Returns the capitalized string. - * @example - * - * _.capitalize('FRED'); - * // => 'Fred' - */ - function capitalize(string) { - return upperFirst(toString(string).toLowerCase()); - } - - /** - * Deburrs `string` by converting - * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table) - * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A) - * letters to basic Latin letters and removing - * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to deburr. - * @returns {string} Returns the deburred string. - * @example - * - * _.deburr('déjà vu'); - * // => 'deja vu' - */ - function deburr(string) { - string = toString(string); - return string && string.replace(reLatin, deburrLetter).replace(reComboMark, ''); - } - - /** - * Checks if `string` ends with the given target string. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to inspect. - * @param {string} [target] The string to search for. - * @param {number} [position=string.length] The position to search up to. - * @returns {boolean} Returns `true` if `string` ends with `target`, - * else `false`. - * @example - * - * _.endsWith('abc', 'c'); - * // => true - * - * _.endsWith('abc', 'b'); - * // => false - * - * _.endsWith('abc', 'b', 2); - * // => true - */ - function endsWith(string, target, position) { - string = toString(string); - target = baseToString(target); - - var length = string.length; - position = position === undefined - ? length - : baseClamp(toInteger(position), 0, length); - - var end = position; - position -= target.length; - return position >= 0 && string.slice(position, end) == target; - } - - /** - * Converts the characters "&", "<", ">", '"', and "'" in `string` to their - * corresponding HTML entities. - * - * **Note:** No other characters are escaped. To escape additional - * characters use a third-party library like [_he_](https://mths.be/he). - * - * Though the ">" character is escaped for symmetry, characters like - * ">" and "/" don't need escaping in HTML and have no special meaning - * unless they're part of a tag or unquoted attribute value. See - * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) - * (under "semi-related fun fact") for more details. - * - * When working with HTML you should always - * [quote attribute values](http://wonko.com/post/html-escaping) to reduce - * XSS vectors. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category String - * @param {string} [string=''] The string to escape. - * @returns {string} Returns the escaped string. - * @example - * - * _.escape('fred, barney, & pebbles'); - * // => 'fred, barney, & pebbles' - */ - function escape(string) { - string = toString(string); - return (string && reHasUnescapedHtml.test(string)) - ? string.replace(reUnescapedHtml, escapeHtmlChar) - : string; - } - - /** - * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+", - * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to escape. - * @returns {string} Returns the escaped string. - * @example - * - * _.escapeRegExp('[lodash](https://lodash.com/)'); - * // => '\[lodash\]\(https://lodash\.com/\)' - */ - function escapeRegExp(string) { - string = toString(string); - return (string && reHasRegExpChar.test(string)) - ? string.replace(reRegExpChar, '\\$&') - : string; - } - - /** - * Converts `string` to - * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to convert. - * @returns {string} Returns the kebab cased string. - * @example - * - * _.kebabCase('Foo Bar'); - * // => 'foo-bar' - * - * _.kebabCase('fooBar'); - * // => 'foo-bar' - * - * _.kebabCase('__FOO_BAR__'); - * // => 'foo-bar' - */ - var kebabCase = createCompounder(function(result, word, index) { - return result + (index ? '-' : '') + word.toLowerCase(); - }); - - /** - * Converts `string`, as space separated words, to lower case. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category String - * @param {string} [string=''] The string to convert. - * @returns {string} Returns the lower cased string. - * @example - * - * _.lowerCase('--Foo-Bar--'); - * // => 'foo bar' - * - * _.lowerCase('fooBar'); - * // => 'foo bar' - * - * _.lowerCase('__FOO_BAR__'); - * // => 'foo bar' - */ - var lowerCase = createCompounder(function(result, word, index) { - return result + (index ? ' ' : '') + word.toLowerCase(); - }); - - /** - * Converts the first character of `string` to lower case. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category String - * @param {string} [string=''] The string to convert. - * @returns {string} Returns the converted string. - * @example - * - * _.lowerFirst('Fred'); - * // => 'fred' - * - * _.lowerFirst('FRED'); - * // => 'fRED' - */ - var lowerFirst = createCaseFirst('toLowerCase'); - - /** - * Pads `string` on the left and right sides if it's shorter than `length`. - * Padding characters are truncated if they can't be evenly divided by `length`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to pad. - * @param {number} [length=0] The padding length. - * @param {string} [chars=' '] The string used as padding. - * @returns {string} Returns the padded string. - * @example - * - * _.pad('abc', 8); - * // => ' abc ' - * - * _.pad('abc', 8, '_-'); - * // => '_-abc_-_' - * - * _.pad('abc', 3); - * // => 'abc' - */ - function pad(string, length, chars) { - string = toString(string); - length = toInteger(length); - - var strLength = length ? stringSize(string) : 0; - if (!length || strLength >= length) { - return string; - } - var mid = (length - strLength) / 2; - return ( - createPadding(nativeFloor(mid), chars) + - string + - createPadding(nativeCeil(mid), chars) - ); - } - - /** - * Pads `string` on the right side if it's shorter than `length`. Padding - * characters are truncated if they exceed `length`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category String - * @param {string} [string=''] The string to pad. - * @param {number} [length=0] The padding length. - * @param {string} [chars=' '] The string used as padding. - * @returns {string} Returns the padded string. - * @example - * - * _.padEnd('abc', 6); - * // => 'abc ' - * - * _.padEnd('abc', 6, '_-'); - * // => 'abc_-_' - * - * _.padEnd('abc', 3); - * // => 'abc' - */ - function padEnd(string, length, chars) { - string = toString(string); - length = toInteger(length); - - var strLength = length ? stringSize(string) : 0; - return (length && strLength < length) - ? (string + createPadding(length - strLength, chars)) - : string; - } - - /** - * Pads `string` on the left side if it's shorter than `length`. Padding - * characters are truncated if they exceed `length`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category String - * @param {string} [string=''] The string to pad. - * @param {number} [length=0] The padding length. - * @param {string} [chars=' '] The string used as padding. - * @returns {string} Returns the padded string. - * @example - * - * _.padStart('abc', 6); - * // => ' abc' - * - * _.padStart('abc', 6, '_-'); - * // => '_-_abc' - * - * _.padStart('abc', 3); - * // => 'abc' - */ - function padStart(string, length, chars) { - string = toString(string); - length = toInteger(length); - - var strLength = length ? stringSize(string) : 0; - return (length && strLength < length) - ? (createPadding(length - strLength, chars) + string) - : string; - } - - /** - * Converts `string` to an integer of the specified radix. If `radix` is - * `undefined` or `0`, a `radix` of `10` is used unless `value` is a - * hexadecimal, in which case a `radix` of `16` is used. - * - * **Note:** This method aligns with the - * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category String - * @param {string} string The string to convert. - * @param {number} [radix=10] The radix to interpret `value` by. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {number} Returns the converted integer. - * @example - * - * _.parseInt('08'); - * // => 8 - * - * _.map(['6', '08', '10'], _.parseInt); - * // => [6, 8, 10] - */ - function parseInt(string, radix, guard) { - if (guard || radix == null) { - radix = 0; - } else if (radix) { - radix = +radix; - } - return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0); - } - - /** - * Repeats the given string `n` times. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to repeat. - * @param {number} [n=1] The number of times to repeat the string. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {string} Returns the repeated string. - * @example - * - * _.repeat('*', 3); - * // => '***' - * - * _.repeat('abc', 2); - * // => 'abcabc' - * - * _.repeat('abc', 0); - * // => '' - */ - function repeat(string, n, guard) { - if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) { - n = 1; - } else { - n = toInteger(n); - } - return baseRepeat(toString(string), n); - } - - /** - * Replaces matches for `pattern` in `string` with `replacement`. - * - * **Note:** This method is based on - * [`String#replace`](https://mdn.io/String/replace). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category String - * @param {string} [string=''] The string to modify. - * @param {RegExp|string} pattern The pattern to replace. - * @param {Function|string} replacement The match replacement. - * @returns {string} Returns the modified string. - * @example - * - * _.replace('Hi Fred', 'Fred', 'Barney'); - * // => 'Hi Barney' - */ - function replace() { - var args = arguments, - string = toString(args[0]); - - return args.length < 3 ? string : string.replace(args[1], args[2]); - } - - /** - * Converts `string` to - * [snake case](https://en.wikipedia.org/wiki/Snake_case). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to convert. - * @returns {string} Returns the snake cased string. - * @example - * - * _.snakeCase('Foo Bar'); - * // => 'foo_bar' - * - * _.snakeCase('fooBar'); - * // => 'foo_bar' - * - * _.snakeCase('--FOO-BAR--'); - * // => 'foo_bar' - */ - var snakeCase = createCompounder(function(result, word, index) { - return result + (index ? '_' : '') + word.toLowerCase(); - }); - - /** - * Splits `string` by `separator`. - * - * **Note:** This method is based on - * [`String#split`](https://mdn.io/String/split). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category String - * @param {string} [string=''] The string to split. - * @param {RegExp|string} separator The separator pattern to split by. - * @param {number} [limit] The length to truncate results to. - * @returns {Array} Returns the string segments. - * @example - * - * _.split('a-b-c', '-', 2); - * // => ['a', 'b'] - */ - function split(string, separator, limit) { - if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) { - separator = limit = undefined; - } - limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0; - if (!limit) { - return []; - } - string = toString(string); - if (string && ( - typeof separator == 'string' || - (separator != null && !isRegExp(separator)) - )) { - separator = baseToString(separator); - if (!separator && hasUnicode(string)) { - return castSlice(stringToArray(string), 0, limit); - } - } - return string.split(separator, limit); - } - - /** - * Converts `string` to - * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage). - * - * @static - * @memberOf _ - * @since 3.1.0 - * @category String - * @param {string} [string=''] The string to convert. - * @returns {string} Returns the start cased string. - * @example - * - * _.startCase('--foo-bar--'); - * // => 'Foo Bar' - * - * _.startCase('fooBar'); - * // => 'Foo Bar' - * - * _.startCase('__FOO_BAR__'); - * // => 'FOO BAR' - */ - var startCase = createCompounder(function(result, word, index) { - return result + (index ? ' ' : '') + upperFirst(word); - }); - - /** - * Checks if `string` starts with the given target string. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to inspect. - * @param {string} [target] The string to search for. - * @param {number} [position=0] The position to search from. - * @returns {boolean} Returns `true` if `string` starts with `target`, - * else `false`. - * @example - * - * _.startsWith('abc', 'a'); - * // => true - * - * _.startsWith('abc', 'b'); - * // => false - * - * _.startsWith('abc', 'b', 1); - * // => true - */ - function startsWith(string, target, position) { - string = toString(string); - position = position == null - ? 0 - : baseClamp(toInteger(position), 0, string.length); - - target = baseToString(target); - return string.slice(position, position + target.length) == target; - } - - /** - * Creates a compiled template function that can interpolate data properties - * in "interpolate" delimiters, HTML-escape interpolated data properties in - * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data - * properties may be accessed as free variables in the template. If a setting - * object is given, it takes precedence over `_.templateSettings` values. - * - * **Note:** In the development build `_.template` utilizes - * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl) - * for easier debugging. - * - * For more information on precompiling templates see - * [lodash's custom builds documentation](https://lodash.com/custom-builds). - * - * For more information on Chrome extension sandboxes see - * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval). - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category String - * @param {string} [string=''] The template string. - * @param {Object} [options={}] The options object. - * @param {RegExp} [options.escape=_.templateSettings.escape] - * The HTML "escape" delimiter. - * @param {RegExp} [options.evaluate=_.templateSettings.evaluate] - * The "evaluate" delimiter. - * @param {Object} [options.imports=_.templateSettings.imports] - * An object to import into the template as free variables. - * @param {RegExp} [options.interpolate=_.templateSettings.interpolate] - * The "interpolate" delimiter. - * @param {string} [options.sourceURL='lodash.templateSources[n]'] - * The sourceURL of the compiled template. - * @param {string} [options.variable='obj'] - * The data object variable name. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Function} Returns the compiled template function. - * @example - * - * // Use the "interpolate" delimiter to create a compiled template. - * var compiled = _.template('hello <%= user %>!'); - * compiled({ 'user': 'fred' }); - * // => 'hello fred!' - * - * // Use the HTML "escape" delimiter to escape data property values. - * var compiled = _.template('<%- value %>'); - * compiled({ 'value': '