border-bottom: 1px dashed #000;
text-decoration: none;
}
+ .version {
+ position: absolute;
+ top: 5px;
+ right: 5px;
+ }
</style>
</head>
<body>
<div class="container">
<h1 class="text-center">Mnemonic Code Converter</h1>
+ <p class="version">v0.2.0</p>
<hr>
<div class="row">
<div class="col-md-12">
<div class="col-sm-7">
<textarea id="entropy" rows="2" class="entropy form-control" placeholder="Accepts binary, base 6, 6-sided dice, base 10, hexadecimal, cards" data-translate-placeholder></textarea>
<div class="row">
- <label class="col-sm-3 control-label" data-translate>Strength</label>
- <div class="strength col-sm-3 form-control-static"></div>
+ <label class="col-sm-3 control-label" data-translate><span class="more-info" data-translate-title title="Based on estimates from zxcvbn using Filtered Entropy">Time To Crack</span></label>
+ <div class="crack-time col-sm-3 form-control-static"></div>
<label class="col-sm-3 control-label" data-translate>Event Count</label>
<div class="event-count col-sm-3 form-control-static"></div>
</div>
<div class="bits-per-event col-sm-3 form-control-static"></div>
</div>
<div class="row">
- <label class="col-sm-3 control-label" data-translate>Word Count</label>
+ <label class="col-sm-3 control-label" data-translate>Raw Entropy Words</label>
<div class="word-count col-sm-3 form-control-static"></div>
<label class="col-sm-3 control-label" data-translate><span class="more-info" data-translate-title title="Total bits of entropy may be less than indicated if any entropy event uses a weak source.">Total Bits</span></label>
<div class="bits col-sm-3 form-control-static"></div>
<div class="col-md-12">
<h2>Derivation Path</h2>
<ul class="derivation-type nav nav-tabs" role="tablist">
+ <li id="bip32-tab">
+ <a href="#bip32" role="tab" data-toggle="tab">BIP32</a>
+ </li>
<li id="bip44-tab" class="active">
<a href="#bip44" role="tab" data-toggle="tab">BIP44</a>
</li>
- <li id="bip32-tab">
- <a href="#bip32" role="tab" data-toggle="tab">BIP32</a>
+ <li id="bip49-tab">
+ <a href="#bip49" role="tab" data-toggle="tab">BIP49</a>
</li>
</ul>
<div class="derivation-type tab-content">
<a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#purpose" target="_blank" data-translate>Purpose</a>
</label>
<div class="col-sm-10">
- <input id="purpose" type="text" class="purpose form-control" value="44">
+ <input id="purpose" type="text" class="purpose form-control" value="44" readonly>
</div>
</div>
<div class="form-group">
<a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#registered-coin-types" target="_blank" data-translate>Coin</a>
</label>
<div class="col-sm-10">
- <input id="coin" type="text" class="coin form-control" value="0">
+ <input id="coin" type="text" class="coin form-control" value="0" readonly>
</div>
</div>
<div class="form-group">
</div>
</form>
</div>
+ <div id="bip49" class="tab-pane">
+ <form class="form-horizontal" role="form">
+ <br>
+ <div class="unavailable hidden">
+ <div class="form-group">
+ <div class="col-sm-2"></div>
+ <div class="col-sm-10">
+ <p data-translate>BIP49 is unavailable for this coin.</p>
+ </div>
+ </div>
+ </div>
+ <div class="available">
+ <div class="col-sm-2"></div>
+ <div class="col-sm-10">
+ <p data-translate-html>
+ For more info see the
+ <a href="https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki" target="_blank">BIP49 spec</a>.
+ </p>
+ </div>
+ <div class="form-group">
+ <label for="purpose" class="col-sm-2 control-label">
+ <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#purpose" target="_blank" data-translate>Purpose</a>
+ </label>
+ <div class="col-sm-10">
+ <input id="purpose" type="text" class="purpose form-control" value="49" readonly>
+ </div>
+ </div>
+ <div class="form-group">
+ <label for="coin" class="col-sm-2 control-label">
+ <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#registered-coin-types" target="_blank" data-translate>Coin</a>
+ </label>
+ <div class="col-sm-10">
+ <input id="coin" type="text" class="coin form-control" value="0" readonly>
+ </div>
+ </div>
+ <div class="form-group">
+ <label for="account" class="col-sm-2 control-label">
+ <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#account" target="_blank" data-translate>Account</a>
+ </label>
+ <div class="col-sm-10">
+ <input id="account" type="text" class="account form-control" value="0">
+ </div>
+ </div>
+ <div class="form-group">
+ <label for="change" class="col-sm-2 control-label">
+ <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#change" target="_blank" data-translate>External / Internal</a>
+ </label>
+ <div class="col-sm-10">
+ <input id="change" type="text" class="change form-control" value="0">
+ </div>
+ </div>
+ <div class="form-group">
+ <label class="col-sm-2 control-label">
+ </label>
+ <div class="col-sm-10">
+ <p data-translate>The account extended keys can be used for importing to most BIP49 compatible wallets.</p>
+ </div>
+ </div>
+ <div class="form-group">
+ <label for="account-xprv" class="col-sm-2 control-label">
+ <span data-translate>Account Extended Private Key</span>
+ </label>
+ <div class="col-sm-10">
+ <textarea id="account-xprv" type="text" class="account-xprv form-control" readonly data-show-qr></textarea>
+ </div>
+ </div>
+ <div class="form-group">
+ <label for="account-xpub" class="col-sm-2 control-label">
+ <span data-translate>Account Extended Public Key</span>
+ </label>
+ <div class="col-sm-10">
+ <textarea id="account-xpub" type="text" class="account-xpub form-control" readonly data-show-qr></textarea>
+ </div>
+ </div>
+ <div class="form-group">
+ <label class="col-sm-2 control-label">
+ </label>
+ <div class="col-sm-10">
+ <p data-translate>The BIP32 derivation path and extended keys are the basis for the derived addresses.</p>
+ </div>
+ </div>
+ <div class="form-group">
+ <label for="bip49-path" class="col-sm-2 control-label" data-translate>BIP32 Derivation Path</label>
+ <div class="col-sm-10">
+ <input id="bip49-path" type="text" class="path form-control" value="m/49'/0'/0'/0" readonly="readonly">
+ </div>
+ </div>
+ </div>
+ </form>
+ </div>
</div>
<form class="form-horizontal" role="form">
<div class="form-group">
return eval('new t(' + a.map(function(_, i) { return 'a[' + i + ']'; }).join(',') + ')');
}
</script>
- <script>(function (root) {
- "use strict";
+ <script>(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.foo = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+'use strict'
-/***** unorm.js *****/
+exports.byteLength = byteLength
+exports.toByteArray = toByteArray
+exports.fromByteArray = fromByteArray
-/*
- * UnicodeNormalizer 1.0.0
- * Copyright (c) 2008 Matsuza
- * Dual licensed under the MIT (MIT-LICENSE.txt) and GPL (GPL-LICENSE.txt) licenses.
- * $Date: 2008-06-05 16:44:17 +0200 (Thu, 05 Jun 2008) $
- * $Rev: 13309 $
- */
+var lookup = []
+var revLookup = []
+var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
- var DEFAULT_FEATURE = [null, 0, {}];
- var CACHE_THRESHOLD = 10;
- var SBase = 0xAC00, LBase = 0x1100, VBase = 0x1161, TBase = 0x11A7, LCount = 19, VCount = 21, TCount = 28;
- var NCount = VCount * TCount; // 588
- var SCount = LCount * NCount; // 11172
+var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+for (var i = 0, len = code.length; i < len; ++i) {
+ lookup[i] = code[i]
+ revLookup[code.charCodeAt(i)] = i
+}
- var UChar = function(cp, feature){
- this.codepoint = cp;
- this.feature = feature;
- };
+revLookup['-'.charCodeAt(0)] = 62
+revLookup['_'.charCodeAt(0)] = 63
- // Strategies
- var cache = {};
- var cacheCounter = [];
- for (var i = 0; i <= 0xFF; ++i){
- cacheCounter[i] = 0;
- }
+function placeHoldersCount (b64) {
+ var len = b64.length
+ if (len % 4 > 0) {
+ throw new Error('Invalid string. Length must be a multiple of 4')
+ }
- function fromCache(next, cp, needFeature){
- var ret = cache[cp];
- if(!ret){
- ret = next(cp, needFeature);
- if(!!ret.feature && ++cacheCounter[(cp >> 8) & 0xFF] > CACHE_THRESHOLD){
- cache[cp] = ret;
- }
- }
- return ret;
- }
+ // the number of equal signs (place holders)
+ // if there are two placeholders, than the two characters before it
+ // represent one byte
+ // if there is only one, then the three characters before it represent 2 bytes
+ // this is just a cheap hack to not do indexOf twice
+ return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
+}
- function fromData(next, cp, needFeature){
- var hash = cp & 0xFF00;
- var dunit = UChar.udata[hash] || {};
- var f = dunit[cp];
- return f ? new UChar(cp, f) : new UChar(cp, DEFAULT_FEATURE);
- }
- function fromCpOnly(next, cp, needFeature){
- return !!needFeature ? next(cp, needFeature) : new UChar(cp, null);
- }
- function fromRuleBasedJamo(next, cp, needFeature){
- var j;
- if(cp < LBase || (LBase + LCount <= cp && cp < SBase) || (SBase + SCount < cp)){
- return next(cp, needFeature);
- }
- if(LBase <= cp && cp < LBase + LCount){
- var c = {};
- var base = (cp - LBase) * VCount;
- for (j = 0; j < VCount; ++j){
- c[VBase + j] = SBase + TCount * (j + base);
- }
- return new UChar(cp, [,,c]);
- }
+function byteLength (b64) {
+ // base64 is 4/3 + up to two characters of the original data
+ return b64.length * 3 / 4 - placeHoldersCount(b64)
+}
- var SIndex = cp - SBase;
- var TIndex = SIndex % TCount;
- var feature = [];
- if(TIndex !== 0){
- feature[0] = [SBase + SIndex - TIndex, TBase + TIndex];
- } else {
- feature[0] = [LBase + Math.floor(SIndex / NCount), VBase + Math.floor((SIndex % NCount) / TCount)];
- feature[2] = {};
- for (j = 1; j < TCount; ++j){
- feature[2][TBase + j] = cp + j;
- }
- }
- return new UChar(cp, feature);
- }
- function fromCpFilter(next, cp, needFeature){
- return cp < 60 || 13311 < cp && cp < 42607 ? new UChar(cp, DEFAULT_FEATURE) : next(cp, needFeature);
- }
+function toByteArray (b64) {
+ var i, j, l, tmp, placeHolders, arr
+ var len = b64.length
+ placeHolders = placeHoldersCount(b64)
- var strategies = [fromCpFilter, fromCache, fromCpOnly, fromRuleBasedJamo, fromData];
+ arr = new Arr(len * 3 / 4 - placeHolders)
- UChar.fromCharCode = strategies.reduceRight(function (next, strategy) {
- return function (cp, needFeature) {
- return strategy(next, cp, needFeature);
- };
- }, null);
+ // if there are placeholders, only get up to the last complete 4 chars
+ l = placeHolders > 0 ? len - 4 : len
- UChar.isHighSurrogate = function(cp){
- return cp >= 0xD800 && cp <= 0xDBFF;
- };
- UChar.isLowSurrogate = function(cp){
- return cp >= 0xDC00 && cp <= 0xDFFF;
- };
+ var L = 0
- UChar.prototype.prepFeature = function(){
- if(!this.feature){
- this.feature = UChar.fromCharCode(this.codepoint, true).feature;
- }
- };
+ for (i = 0, j = 0; i < l; i += 4, j += 3) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
+ arr[L++] = (tmp >> 16) & 0xFF
+ arr[L++] = (tmp >> 8) & 0xFF
+ arr[L++] = tmp & 0xFF
+ }
- UChar.prototype.toString = function(){
- if(this.codepoint < 0x10000){
- return String.fromCharCode(this.codepoint);
- } else {
- var x = this.codepoint - 0x10000;
- return String.fromCharCode(Math.floor(x / 0x400) + 0xD800, x % 0x400 + 0xDC00);
- }
- };
+ if (placeHolders === 2) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
+ arr[L++] = tmp & 0xFF
+ } else if (placeHolders === 1) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
+ arr[L++] = (tmp >> 8) & 0xFF
+ arr[L++] = tmp & 0xFF
+ }
- UChar.prototype.getDecomp = function(){
- this.prepFeature();
- return this.feature[0] || null;
- };
+ return arr
+}
- UChar.prototype.isCompatibility = function(){
- this.prepFeature();
- return !!this.feature[1] && (this.feature[1] & (1 << 8));
- };
- UChar.prototype.isExclude = function(){
- this.prepFeature();
- return !!this.feature[1] && (this.feature[1] & (1 << 9));
- };
- UChar.prototype.getCanonicalClass = function(){
- this.prepFeature();
- return !!this.feature[1] ? (this.feature[1] & 0xff) : 0;
- };
- UChar.prototype.getComposite = function(following){
- this.prepFeature();
- if(!this.feature[2]){
- return null;
- }
- var cp = this.feature[2][following.codepoint];
- return cp ? UChar.fromCharCode(cp) : null;
- };
+function tripletToBase64 (num) {
+ return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
+}
- var UCharIterator = function(str){
- this.str = str;
- this.cursor = 0;
- };
- UCharIterator.prototype.next = function(){
- if(!!this.str && this.cursor < this.str.length){
- var cp = this.str.charCodeAt(this.cursor++);
- var d;
- if(UChar.isHighSurrogate(cp) && this.cursor < this.str.length && UChar.isLowSurrogate((d = this.str.charCodeAt(this.cursor)))){
- cp = (cp - 0xD800) * 0x400 + (d -0xDC00) + 0x10000;
- ++this.cursor;
- }
- return UChar.fromCharCode(cp);
- } else {
- this.str = null;
- return null;
- }
- };
+function encodeChunk (uint8, start, end) {
+ var tmp
+ var output = []
+ for (var i = start; i < end; i += 3) {
+ tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
+ output.push(tripletToBase64(tmp))
+ }
+ return output.join('')
+}
- var RecursDecompIterator = function(it, cano){
- this.it = it;
- this.canonical = cano;
- this.resBuf = [];
- };
+function fromByteArray (uint8) {
+ var tmp
+ var len = uint8.length
+ var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
+ var output = ''
+ var parts = []
+ var maxChunkLength = 16383 // must be multiple of 3
- RecursDecompIterator.prototype.next = function(){
- function recursiveDecomp(cano, uchar){
- var decomp = uchar.getDecomp();
- if(!!decomp && !(cano && uchar.isCompatibility())){
- var ret = [];
- for(var i = 0; i < decomp.length; ++i){
- var a = recursiveDecomp(cano, UChar.fromCharCode(decomp[i]));
- ret = ret.concat(a);
- }
- return ret;
- } else {
- return [uchar];
- }
- }
- if(this.resBuf.length === 0){
- var uchar = this.it.next();
- if(!uchar){
- return null;
- }
- this.resBuf = recursiveDecomp(this.canonical, uchar);
- }
- return this.resBuf.shift();
- };
+ // 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)))
+ }
- var DecompIterator = function(it){
- this.it = it;
- this.resBuf = [];
- };
+ // pad the end with zeros, but make sure to not forget the extra bytes
+ if (extraBytes === 1) {
+ tmp = uint8[len - 1]
+ output += lookup[tmp >> 2]
+ output += lookup[(tmp << 4) & 0x3F]
+ output += '=='
+ } else if (extraBytes === 2) {
+ tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
+ output += lookup[tmp >> 10]
+ output += lookup[(tmp >> 4) & 0x3F]
+ output += lookup[(tmp << 2) & 0x3F]
+ output += '='
+ }
- DecompIterator.prototype.next = function(){
- var cc;
- if(this.resBuf.length === 0){
- do{
- var uchar = this.it.next();
- if(!uchar){
- break;
- }
- cc = uchar.getCanonicalClass();
- var inspt = this.resBuf.length;
- if(cc !== 0){
- for(; inspt > 0; --inspt){
- var uchar2 = this.resBuf[inspt - 1];
- var cc2 = uchar2.getCanonicalClass();
- if(cc2 <= cc){
- break;
- }
- }
- }
- this.resBuf.splice(inspt, 0, uchar);
- } while(cc !== 0);
- }
- return this.resBuf.shift();
- };
+ parts.push(output)
- var CompIterator = function(it){
- this.it = it;
- this.procBuf = [];
- this.resBuf = [];
- this.lastClass = null;
- };
+ return parts.join('')
+}
- CompIterator.prototype.next = function(){
- while(this.resBuf.length === 0){
- var uchar = this.it.next();
- if(!uchar){
- this.resBuf = this.procBuf;
- this.procBuf = [];
- break;
- }
- if(this.procBuf.length === 0){
- this.lastClass = uchar.getCanonicalClass();
- this.procBuf.push(uchar);
- } else {
- var starter = this.procBuf[0];
- var composite = starter.getComposite(uchar);
- var cc = uchar.getCanonicalClass();
- if(!!composite && (this.lastClass < cc || this.lastClass === 0)){
- this.procBuf[0] = composite;
- } else {
- if(cc === 0){
- this.resBuf = this.procBuf;
- this.procBuf = [];
- }
- this.lastClass = cc;
- this.procBuf.push(uchar);
- }
- }
- }
- return this.resBuf.shift();
- };
+},{}],2:[function(require,module,exports){
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license MIT
+ */
+/* eslint-disable no-proto */
- var createIterator = function(mode, str){
- switch(mode){
- case "NFD":
- return new DecompIterator(new RecursDecompIterator(new UCharIterator(str), true));
- case "NFKD":
- return new DecompIterator(new RecursDecompIterator(new UCharIterator(str), false));
- case "NFC":
- return new CompIterator(new DecompIterator(new RecursDecompIterator(new UCharIterator(str), true)));
- case "NFKC":
- return new CompIterator(new DecompIterator(new RecursDecompIterator(new UCharIterator(str), false)));
- }
- throw mode + " is invalid";
- };
- var normalize = function(mode, str){
- var it = createIterator(mode, str);
- var ret = "";
- var uchar;
- while(!!(uchar = it.next())){
- ret += uchar.toString();
- }
- return ret;
- };
+'use strict'
- /* API functions */
- function nfd(str){
- return normalize("NFD", str);
- }
+var base64 = require('base64-js')
+var ieee754 = require('ieee754')
- function nfkd(str){
- return normalize("NFKD", str);
- }
+exports.Buffer = Buffer
+exports.SlowBuffer = SlowBuffer
+exports.INSPECT_MAX_BYTES = 50
- function nfc(str){
- return normalize("NFC", str);
- }
+var K_MAX_LENGTH = 0x7fffffff
+exports.kMaxLength = K_MAX_LENGTH
- function nfkc(str){
- return normalize("NFKC", str);
- }
+/**
+ * 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()
-/* Unicode data */
-UChar.udata={
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+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)
+ arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
+ return arr.foo() === 42
+ } catch (e) {
+ return false
+ }
+}
- /***** Module to export */
- var unorm = {
- nfc: nfc,
- nfd: nfd,
- nfkc: nfkc,
- nfkd: nfkd
- };
+function createBuffer (length) {
+ if (length > K_MAX_LENGTH) {
+ throw new RangeError('Invalid typed array length')
+ }
+ // Return an augmented `Uint8Array` instance
+ var buf = new Uint8Array(length)
+ buf.__proto__ = Buffer.prototype
+ return buf
+}
- /*globals module:true,define:true*/
+/**
+ * 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.
+ */
- // CommonJS
- if (typeof module === "object") {
- module.exports = unorm;
+function Buffer (arg, encodingOrOffset, length) {
+ // Common case.
+ if (typeof arg === 'number') {
+ if (typeof encodingOrOffset === 'string') {
+ throw new Error(
+ 'If encoding is specified then the first argument must be a string'
+ )
+ }
+ return allocUnsafe(arg)
+ }
+ return from(arg, encodingOrOffset, length)
+}
- // AMD
- } else if (typeof define === "function" && define.amd) {
- define("unorm", function () {
- return unorm;
- });
+// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
+if (typeof Symbol !== 'undefined' && Symbol.species &&
+ Buffer[Symbol.species] === Buffer) {
+ Object.defineProperty(Buffer, Symbol.species, {
+ value: null,
+ configurable: true,
+ enumerable: false,
+ writable: false
+ })
+}
- // Global
- } else {
- root.unorm = unorm;
- }
+Buffer.poolSize = 8192 // not used by this implementation
- /***** Export as shim for String::normalize method *****/
- /*
- http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts#november_8_2013_draft_rev_21
+function from (value, encodingOrOffset, length) {
+ if (typeof value === 'number') {
+ throw new TypeError('"value" argument must not be a number')
+ }
- 21.1.3.12 String.prototype.normalize(form="NFC")
- When the normalize method is called with one argument form, the following steps are taken:
+ if (value instanceof ArrayBuffer) {
+ return fromArrayBuffer(value, encodingOrOffset, length)
+ }
- 1. Let O be CheckObjectCoercible(this value).
- 2. Let S be ToString(O).
- 3. ReturnIfAbrupt(S).
- 4. If form is not provided or undefined let form be "NFC".
- 5. Let f be ToString(form).
- 6. ReturnIfAbrupt(f).
- 7. If f is not one of "NFC", "NFD", "NFKC", or "NFKD", then throw a RangeError Exception.
- 8. Let ns be the String value is the result of normalizing S into the normalization form named by f as specified in Unicode Standard Annex #15, UnicodeNormalizatoin Forms.
- 9. Return ns.
+ if (typeof value === 'string') {
+ return fromString(value, encodingOrOffset)
+ }
- The length property of the normalize method is 0.
+ return fromObject(value)
+}
- *NOTE* The normalize function is intentionally generic; it does not require that its this value be a String object. Therefore it can be transferred to other kinds of objects for use as a method.
- */
- unorm.shimApplied = false;
+/**
+ * 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)
+}
- if (!String.prototype.normalize) {
- String.prototype.normalize = function(form) {
- var str = "" + this;
- form = form === undefined ? "NFC" : form;
+// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
+// https://github.com/feross/buffer/pull/148
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+}
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+}
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+}
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- */
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- /**
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- for (j=0; j<str2.length; ++j) {
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+ }
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- }
- // deletion
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- if (nextCol > tmp) {
- nextCol = tmp;
- }
+ return buf
+}
- // copy current col value into previous (in preparation for next iteration)
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- }
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+ for (var i = 0; i < length; i += 1) {
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- }
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+ }
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+ throw new RangeError('\'length\' is out of bounds')
+ }
- /**
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- if (str2.length === 0) return cb(null, str1.length);
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+ return buf
+}
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- curCol, nextCol,
- i, j, tmp,
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+ if (Buffer.isBuffer(obj)) {
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- }
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+ }
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- i = 0;
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+ return buf
+ }
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- // reset timer
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+ if (obj) {
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+ }
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- // reached end of current row?
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- // copy current into previous (in preparation for next iteration)
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+ }
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- return cb(null, nextCol);
- }
- // else if we have more left to do
- else {
- nextCol = i + 1;
- j = 0;
- }
- }
+ throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
+}
- // calculation
- curCol = nextCol;
+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) {
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+ 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
+ }
+ return length | 0
+}
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- nextCol = prevRow[j] + ( (str1.charAt(i) === str2.charAt(j)) ? 0 : 1 );
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- }
- // deletion
- tmp = prevRow[j + 1] + 1;
- if (nextCol > tmp) {
- nextCol = tmp;
- }
+function SlowBuffer (length) {
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+ }
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+}
- // copy current into previous (in preparation for next iteration)
- prevRow[j] = curCol;
+Buffer.isBuffer = function isBuffer (b) {
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+}
- // get current time
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- } catch (err) {
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- }
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- // next iteration
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+ break
}
+ }
- };
+ if (x < y) return -1
+ if (y < x) return 1
+ return 0
+}
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- if (typeof define !== "undefined" && define !== null && define.amd) {
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+Buffer.isEncoding = function isEncoding (encoding) {
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+ case 'ucs2':
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+ case 'utf16le':
+ case 'utf-16le':
+ return true
+ default:
+ return false
}
- // commonjs
- else if (typeof module !== "undefined" && module !== null && typeof exports !== "undefined" && module.exports === exports) {
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+}
+
+Buffer.concat = function concat (list, length) {
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-(d[n++]=f[g][k]);for(k=0;k<e;k++)for(g=0;g<c.length;g++)k<i[g].length&&(d[n++]=i[g][k]);return d};s=4;for(var j={PATTERN_POSITION_TABLE:[[],[6,18],[6,22],[6,26],[6,30],[6,34],[6,22,38],[6,24,42],[6,26,46],[6,28,50],[6,30,54],[6,32,58],[6,34,62],[6,26,46,66],[6,26,48,70],[6,26,50,74],[6,30,54,78],[6,30,56,82],[6,30,58,86],[6,34,62,90],[6,28,50,72,94],[6,26,50,74,98],[6,30,54,78,102],[6,28,54,80,106],[6,32,58,84,110],[6,30,58,86,114],[6,34,62,90,118],[6,26,50,74,98,122],[6,30,54,78,102,126],[6,26,52,
-78,104,130],[6,30,56,82,108,134],[6,34,60,86,112,138],[6,30,58,86,114,142],[6,34,62,90,118,146],[6,30,54,78,102,126,150],[6,24,50,76,102,128,154],[6,28,54,80,106,132,158],[6,32,58,84,110,136,162],[6,26,54,82,110,138,166],[6,30,58,86,114,142,170]],G15:1335,G18:7973,G15_MASK:21522,getBCHTypeInfo:function(a){for(var c=a<<10;0<=j.getBCHDigit(c)-j.getBCHDigit(j.G15);)c^=j.G15<<j.getBCHDigit(c)-j.getBCHDigit(j.G15);return(a<<10|c)^j.G15_MASK},getBCHTypeNumber:function(a){for(var c=a<<12;0<=j.getBCHDigit(c)-
-j.getBCHDigit(j.G18);)c^=j.G18<<j.getBCHDigit(c)-j.getBCHDigit(j.G18);return a<<12|c},getBCHDigit:function(a){for(var c=0;0!=a;)c++,a>>>=1;return c},getPatternPosition:function(a){return j.PATTERN_POSITION_TABLE[a-1]},getMask:function(a,c,d){switch(a){case 0:return 0==(c+d)%2;case 1:return 0==c%2;case 2:return 0==d%3;case 3:return 0==(c+d)%3;case 4:return 0==(Math.floor(c/2)+Math.floor(d/3))%2;case 5:return 0==c*d%2+c*d%3;case 6:return 0==(c*d%2+c*d%3)%2;case 7:return 0==(c*d%3+(c+d)%2)%2;default:throw Error("bad maskPattern:"+
-a);}},getErrorCorrectPolynomial:function(a){for(var c=new q([1],0),d=0;d<a;d++)c=c.multiply(new q([1,l.gexp(d)],0));return c},getLengthInBits:function(a,c){if(1<=c&&10>c)switch(a){case 1:return 10;case 2:return 9;case s:return 8;case 8:return 8;default:throw Error("mode:"+a);}else if(27>c)switch(a){case 1:return 12;case 2:return 11;case s:return 16;case 8:return 10;default:throw Error("mode:"+a);}else if(41>c)switch(a){case 1:return 14;case 2:return 13;case s:return 16;case 8:return 12;default:throw Error("mode:"+
-a);}else throw Error("type:"+c);},getLostPoint:function(a){for(var c=a.getModuleCount(),d=0,b=0;b<c;b++)for(var e=0;e<c;e++){for(var f=0,i=a.isDark(b,e),g=-1;1>=g;g++)if(!(0>b+g||c<=b+g))for(var h=-1;1>=h;h++)0>e+h||c<=e+h||0==g&&0==h||i==a.isDark(b+g,e+h)&&f++;5<f&&(d+=3+f-5)}for(b=0;b<c-1;b++)for(e=0;e<c-1;e++)if(f=0,a.isDark(b,e)&&f++,a.isDark(b+1,e)&&f++,a.isDark(b,e+1)&&f++,a.isDark(b+1,e+1)&&f++,0==f||4==f)d+=3;for(b=0;b<c;b++)for(e=0;e<c-6;e++)a.isDark(b,e)&&!a.isDark(b,e+1)&&a.isDark(b,e+
-2)&&a.isDark(b,e+3)&&a.isDark(b,e+4)&&!a.isDark(b,e+5)&&a.isDark(b,e+6)&&(d+=40);for(e=0;e<c;e++)for(b=0;b<c-6;b++)a.isDark(b,e)&&!a.isDark(b+1,e)&&a.isDark(b+2,e)&&a.isDark(b+3,e)&&a.isDark(b+4,e)&&!a.isDark(b+5,e)&&a.isDark(b+6,e)&&(d+=40);for(e=f=0;e<c;e++)for(b=0;b<c;b++)a.isDark(b,e)&&f++;a=Math.abs(100*f/c/c-50)/5;return d+10*a}},l={glog:function(a){if(1>a)throw Error("glog("+a+")");return l.LOG_TABLE[a]},gexp:function(a){for(;0>a;)a+=255;for(;256<=a;)a-=255;return l.EXP_TABLE[a]},EXP_TABLE:Array(256),
-LOG_TABLE:Array(256)},m=0;8>m;m++)l.EXP_TABLE[m]=1<<m;for(m=8;256>m;m++)l.EXP_TABLE[m]=l.EXP_TABLE[m-4]^l.EXP_TABLE[m-5]^l.EXP_TABLE[m-6]^l.EXP_TABLE[m-8];for(m=0;255>m;m++)l.LOG_TABLE[l.EXP_TABLE[m]]=m;q.prototype={get:function(a){return this.num[a]},getLength:function(){return this.num.length},multiply:function(a){for(var c=Array(this.getLength()+a.getLength()-1),d=0;d<this.getLength();d++)for(var b=0;b<a.getLength();b++)c[d+b]^=l.gexp(l.glog(this.get(d))+l.glog(a.get(b)));return new q(c,0)},mod:function(a){if(0>
-this.getLength()-a.getLength())return this;for(var c=l.glog(this.get(0))-l.glog(a.get(0)),d=Array(this.getLength()),b=0;b<this.getLength();b++)d[b]=this.get(b);for(b=0;b<a.getLength();b++)d[b]^=l.gexp(l.glog(a.get(b))+c);return(new q(d,0)).mod(a)}};p.RS_BLOCK_TABLE=[[1,26,19],[1,26,16],[1,26,13],[1,26,9],[1,44,34],[1,44,28],[1,44,22],[1,44,16],[1,70,55],[1,70,44],[2,35,17],[2,35,13],[1,100,80],[2,50,32],[2,50,24],[4,25,9],[1,134,108],[2,67,43],[2,33,15,2,34,16],[2,33,11,2,34,12],[2,86,68],[4,43,27],
-[4,43,19],[4,43,15],[2,98,78],[4,49,31],[2,32,14,4,33,15],[4,39,13,1,40,14],[2,121,97],[2,60,38,2,61,39],[4,40,18,2,41,19],[4,40,14,2,41,15],[2,146,116],[3,58,36,2,59,37],[4,36,16,4,37,17],[4,36,12,4,37,13],[2,86,68,2,87,69],[4,69,43,1,70,44],[6,43,19,2,44,20],[6,43,15,2,44,16],[4,101,81],[1,80,50,4,81,51],[4,50,22,4,51,23],[3,36,12,8,37,13],[2,116,92,2,117,93],[6,58,36,2,59,37],[4,46,20,6,47,21],[7,42,14,4,43,15],[4,133,107],[8,59,37,1,60,38],[8,44,20,4,45,21],[12,33,11,4,34,12],[3,145,115,1,146,
-116],[4,64,40,5,65,41],[11,36,16,5,37,17],[11,36,12,5,37,13],[5,109,87,1,110,88],[5,65,41,5,66,42],[5,54,24,7,55,25],[11,36,12],[5,122,98,1,123,99],[7,73,45,3,74,46],[15,43,19,2,44,20],[3,45,15,13,46,16],[1,135,107,5,136,108],[10,74,46,1,75,47],[1,50,22,15,51,23],[2,42,14,17,43,15],[5,150,120,1,151,121],[9,69,43,4,70,44],[17,50,22,1,51,23],[2,42,14,19,43,15],[3,141,113,4,142,114],[3,70,44,11,71,45],[17,47,21,4,48,22],[9,39,13,16,40,14],[3,135,107,5,136,108],[3,67,41,13,68,42],[15,54,24,5,55,25],[15,
-43,15,10,44,16],[4,144,116,4,145,117],[17,68,42],[17,50,22,6,51,23],[19,46,16,6,47,17],[2,139,111,7,140,112],[17,74,46],[7,54,24,16,55,25],[34,37,13],[4,151,121,5,152,122],[4,75,47,14,76,48],[11,54,24,14,55,25],[16,45,15,14,46,16],[6,147,117,4,148,118],[6,73,45,14,74,46],[11,54,24,16,55,25],[30,46,16,2,47,17],[8,132,106,4,133,107],[8,75,47,13,76,48],[7,54,24,22,55,25],[22,45,15,13,46,16],[10,142,114,2,143,115],[19,74,46,4,75,47],[28,50,22,6,51,23],[33,46,16,4,47,17],[8,152,122,4,153,123],[22,73,45,
-3,74,46],[8,53,23,26,54,24],[12,45,15,28,46,16],[3,147,117,10,148,118],[3,73,45,23,74,46],[4,54,24,31,55,25],[11,45,15,31,46,16],[7,146,116,7,147,117],[21,73,45,7,74,46],[1,53,23,37,54,24],[19,45,15,26,46,16],[5,145,115,10,146,116],[19,75,47,10,76,48],[15,54,24,25,55,25],[23,45,15,25,46,16],[13,145,115,3,146,116],[2,74,46,29,75,47],[42,54,24,1,55,25],[23,45,15,28,46,16],[17,145,115],[10,74,46,23,75,47],[10,54,24,35,55,25],[19,45,15,35,46,16],[17,145,115,1,146,116],[14,74,46,21,75,47],[29,54,24,19,
-55,25],[11,45,15,46,46,16],[13,145,115,6,146,116],[14,74,46,23,75,47],[44,54,24,7,55,25],[59,46,16,1,47,17],[12,151,121,7,152,122],[12,75,47,26,76,48],[39,54,24,14,55,25],[22,45,15,41,46,16],[6,151,121,14,152,122],[6,75,47,34,76,48],[46,54,24,10,55,25],[2,45,15,64,46,16],[17,152,122,4,153,123],[29,74,46,14,75,47],[49,54,24,10,55,25],[24,45,15,46,46,16],[4,152,122,18,153,123],[13,74,46,32,75,47],[48,54,24,14,55,25],[42,45,15,32,46,16],[20,147,117,4,148,118],[40,75,47,7,76,48],[43,54,24,22,55,25],[10,
-45,15,67,46,16],[19,148,118,6,149,119],[18,75,47,31,76,48],[34,54,24,34,55,25],[20,45,15,61,46,16]];p.getRSBlocks=function(a,c){var d=p.getRsBlockTable(a,c);if(void 0==d)throw Error("bad rs block @ typeNumber:"+a+"/errorCorrectLevel:"+c);for(var b=d.length/3,e=[],f=0;f<b;f++)for(var h=d[3*f+0],g=d[3*f+1],j=d[3*f+2],l=0;l<h;l++)e.push(new p(g,j));return e};p.getRsBlockTable=function(a,c){switch(c){case 1:return p.RS_BLOCK_TABLE[4*(a-1)+0];case 0:return p.RS_BLOCK_TABLE[4*(a-1)+1];case 3:return p.RS_BLOCK_TABLE[4*
-(a-1)+2];case 2:return p.RS_BLOCK_TABLE[4*(a-1)+3]}};t.prototype={get:function(a){return 1==(this.buffer[Math.floor(a/8)]>>>7-a%8&1)},put:function(a,c){for(var d=0;d<c;d++)this.putBit(1==(a>>>c-d-1&1))},getLengthInBits:function(){return this.length},putBit:function(a){var c=Math.floor(this.length/8);this.buffer.length<=c&&this.buffer.push(0);a&&(this.buffer[c]|=128>>>this.length%8);this.length++}};"string"===typeof h&&(h={text:h});h=r.extend({},{render:"canvas",width:256,height:256,typeNumber:-1,
-correctLevel:2,background:"#ffffff",foreground:"#000000"},h);return this.each(function(){var a;if("canvas"==h.render){a=new o(h.typeNumber,h.correctLevel);a.addData(h.text);a.make();var c=document.createElement("canvas");c.width=h.width;c.height=h.height;for(var d=c.getContext("2d"),b=h.width/a.getModuleCount(),e=h.height/a.getModuleCount(),f=0;f<a.getModuleCount();f++)for(var i=0;i<a.getModuleCount();i++){d.fillStyle=a.isDark(f,i)?h.foreground:h.background;var g=Math.ceil((i+1)*b)-Math.floor(i*b),
-j=Math.ceil((f+1)*b)-Math.floor(f*b);d.fillRect(Math.round(i*b),Math.round(f*e),g,j)}}else{a=new o(h.typeNumber,h.correctLevel);a.addData(h.text);a.make();c=r("<table></table>").css("width",h.width+"px").css("height",h.height+"px").css("border","0px").css("border-collapse","collapse").css("background-color",h.background);d=h.width/a.getModuleCount();b=h.height/a.getModuleCount();for(e=0;e<a.getModuleCount();e++){f=r("<tr></tr>").css("height",b+"px").appendTo(c);for(i=0;i<a.getModuleCount();i++)r("<td></td>").css("width",
-d+"px").css("background-color",a.isDark(e,i)?h.foreground:h.background).appendTo(f)}}a=c;$(a).appendTo(this)})}})($);
-</script>
- <script>(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.bitcoin = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[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 buffer = Buffer.allocUnsafe(length)
+ var pos = 0
+ for (i = 0; i < list.length; ++i) {
+ var buf = list[i]
+ if (!Buffer.isBuffer(buf)) {
+ throw new TypeError('"list" argument must be an Array of Buffers')
+ }
+ buf.copy(buffer, pos)
+ pos += buf.length
}
+ return buffer
}
-var proto = BigInteger.prototype
+function byteLength (string, encoding) {
+ if (Buffer.isBuffer(string)) {
+ return string.length
+ }
+ if (isArrayBufferView(string) || string instanceof ArrayBuffer) {
+ return string.byteLength
+ }
+ if (typeof string !== 'string') {
+ string = '' + string
+ }
-// 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)
+ var len = string.length
+ if (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':
+ case undefined:
+ 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 utf8ToBytes(string).length // assume utf8
+ encoding = ('' + encoding).toLowerCase()
+ loweredCase = true
+ }
+ }
}
+Buffer.byteLength = byteLength
-// Bits per digit
-var dbits
+function slowToString (encoding, start, end) {
+ var loweredCase = false
-// 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.
+ // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
+ // property of a typed array.
-// 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
+ // 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 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 early if start > this.length. Done here to prevent potential uint32
+ // coercion fail below.
+ if (start > this.length) {
+ return ''
}
- 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
+
+ if (end === undefined || end > this.length) {
+ end = this.length
}
- return c
-}
-// wtf?
-BigInteger.prototype.am = am1
-dbits = 26
+ if (end <= 0) {
+ return ''
+ }
-BigInteger.prototype.DB = dbits
-BigInteger.prototype.DM = ((1 << dbits) - 1)
-var DV = BigInteger.prototype.DV = (1 << dbits)
+ // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
+ end >>>= 0
+ start >>>= 0
-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
+ if (end <= start) {
+ return ''
+ }
-// 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
+ if (!encoding) encoding = 'utf8'
-function int2char(n) {
- return BI_RM.charAt(n)
-}
+ while (true) {
+ switch (encoding) {
+ case 'hex':
+ return hexSlice(this, start, end)
-function intAt(s, i) {
- var c = BI_RC[s.charCodeAt(i)]
- return (c == null) ? -1 : c
-}
+ case 'utf8':
+ case 'utf-8':
+ return utf8Slice(this, start, end)
-// (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
-}
+ case 'ascii':
+ return asciiSlice(this, start, end)
-// (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
-}
+ case 'latin1':
+ case 'binary':
+ return latin1Slice(this, start, end)
-// return bigint initialized to value
-function nbv(i) {
- var r = new BigInteger()
- r.fromInt(i)
- return r
-}
+ case 'base64':
+ return base64Slice(this, start, end)
-// (protected) set from string and radix
-function bnpFromString(s, b) {
- var self = this
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return utf16leSlice(this, start, end)
- 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
+ default:
+ if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+ encoding = (encoding + '').toLowerCase()
+ loweredCase = true
}
- 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
+}
+
+// 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')
}
- self.clamp()
- if (mi) BigInteger.ZERO.subTo(self, self)
+ for (var i = 0; i < len; i += 2) {
+ swap(this, i, i + 1)
+ }
+ return this
}
-// (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
+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
}
-// (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)
- }
+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')
}
- return m ? r : "0"
+ 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
}
-// (public) -this
-function bnNegate() {
- var r = new BigInteger()
- BigInteger.ZERO.subTo(this, r)
- return r
+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)
}
-// (public) |this|
-function bnAbs() {
- return (this.s < 0) ? this.negate() : this
+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
}
-// (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
+Buffer.prototype.inspect = function inspect () {
+ var str = ''
+ var max = exports.INSPECT_MAX_BYTES
+ if (this.length > 0) {
+ str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
+ if (this.length > max) str += ' ... '
+ }
+ return '<Buffer ' + str + '>'
}
-// returns bit length of the integer x
-function nbits(x) {
- var r = 1,
- t
- if ((t = x >>> 16) != 0) {
- x = t
- r += 16
+Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
+ if (!Buffer.isBuffer(target)) {
+ throw new TypeError('Argument must be a Buffer')
}
- if ((t = x >> 8) != 0) {
- x = t
- r += 8
+
+ if (start === undefined) {
+ start = 0
}
- if ((t = x >> 4) != 0) {
- x = t
- r += 4
+ if (end === undefined) {
+ end = target ? target.length : 0
}
- if ((t = x >> 2) != 0) {
- x = t
- r += 2
+ if (thisStart === undefined) {
+ thisStart = 0
}
- if ((t = x >> 1) != 0) {
- x = t
- r += 1
+ if (thisEnd === undefined) {
+ thisEnd = this.length
}
- 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))
-}
+ if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
+ throw new RangeError('out of range index')
+ }
-// (public) return the number of bytes in "this"
-function bnByteLength() {
- return this.bitLength() >> 3
-}
+ if (thisStart >= thisEnd && start >= end) {
+ return 0
+ }
+ if (thisStart >= thisEnd) {
+ return -1
+ }
+ if (start >= end) {
+ return 1
+ }
-// (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
-}
+ start >>>= 0
+ end >>>= 0
+ thisStart >>>= 0
+ thisEnd >>>= 0
-// (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
-}
+ if (this === target) return 0
-// (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()
-}
+ var x = thisEnd - thisStart
+ var y = end - start
+ var len = Math.min(x, y)
-// (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
+ 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 (bs > 0) r[self.t - ds - 1] |= (self.s & bm) << cbs
- r.t = self.t - ds
- r.clamp()
+
+ if (x < y) return -1
+ if (y < x) return 1
+ return 0
}
-// (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
+// 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
}
- c += self.s
- } else {
- c += self.s
- while (i < a.t) {
- c -= a[i]
- r[i++] = c & self.DM
- c >>= self.DB
+ 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)
+ }
}
- c -= a.s
+ return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
}
- 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)
+ throw new TypeError('val must be string, number or Buffer')
}
-// (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
+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
}
}
- 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
+ function read (buf, i) {
+ if (indexSize === 1) {
+ return buf[i]
+ } else {
+ return buf.readUInt16BE(i * indexSize)
+ }
}
- 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)
+
+ 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 {
- 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 (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
}
}
- 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
+ return -1
}
-// Modular reduction using "classic" algorithm
-function Classic(m) {
- this.m = m
+Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
+ return this.indexOf(val, byteOffset, encoding) !== -1
}
-function cConvert(x) {
- if (x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m)
- else return x
+Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
+ return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
}
-function cRevert(x) {
- return x
+Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
+ return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}
-function cReduce(x) {
- x.divRemTo(this.m, null, x)
-}
+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
+ }
+ }
-function cMulTo(x, y, r) {
- x.multiplyTo(y, r)
- this.reduce(r)
-}
+ // must be an even number of digits
+ var strLen = string.length
+ if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
-function cSqrTo(x, r) {
- x.squareTo(r)
- this.reduce(r)
+ 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
}
-Classic.prototype.convert = cConvert
-Classic.prototype.revert = cRevert
-Classic.prototype.reduce = cReduce
-Classic.prototype.mulTo = cMulTo
-Classic.prototype.sqrTo = cSqrTo
+function utf8Write (buf, string, offset, length) {
+ return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
+}
-// (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
+function asciiWrite (buf, string, offset, length) {
+ return blitBuffer(asciiToBytes(string), buf, offset, length)
}
-// 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
+function latin1Write (buf, string, offset, length) {
+ return asciiWrite(buf, string, offset, length)
}
-// 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
+function base64Write (buf, string, offset, length) {
+ return blitBuffer(base64ToBytes(string), buf, offset, length)
}
-// x/R mod m
-function montRevert(x) {
- var r = new BigInteger()
- x.copyTo(r)
- this.reduce(r)
- return r
+function ucs2Write (buf, string, offset, length) {
+ return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}
-// 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]++
+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'
+ )
}
- 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)
-}
+ var remaining = this.length - offset
+ if (length === undefined || length > remaining) length = remaining
-Montgomery.prototype.convert = montConvert
-Montgomery.prototype.revert = montRevert
-Montgomery.prototype.reduce = montReduce
-Montgomery.prototype.mulTo = montMulTo
-Montgomery.prototype.sqrTo = montSqrTo
+ if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
+ throw new RangeError('Attempt to write outside buffer bounds')
+ }
-// (protected) true iff this is even
-function bnpIsEven() {
- return ((this.t > 0) ? (this[0] & 1) : this.s) == 0
-}
+ if (!encoding) encoding = 'utf8'
-// (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)
-}
+ var loweredCase = false
+ for (;;) {
+ switch (encoding) {
+ case 'hex':
+ return hexWrite(this, string, offset, length)
-// (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)
-}
+ case 'utf8':
+ case 'utf-8':
+ return utf8Write(this, string, offset, length)
-// 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
+ case 'ascii':
+ return asciiWrite(this, string, offset, length)
-// 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
+ case 'latin1':
+ case 'binary':
+ return latin1Write(this, string, offset, length)
-// (public)
-function bnClone() {
- var r = new BigInteger()
- this.copyTo(r)
- return r
-}
+ case 'base64':
+ // Warning: maxLength not taken into account in base64Write
+ return base64Write(this, string, offset, length)
-// (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]
-}
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return ucs2Write(this, string, offset, length)
-// (public) return value as byte
-function bnByteValue() {
- return (this.t == 0) ? this.s : (this[0] << 24) >> 24
+ default:
+ if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+ encoding = ('' + encoding).toLowerCase()
+ loweredCase = true
+ }
+ }
}
-// (public) return value as short (assumes DB>=16)
-function bnShortValue() {
- return (this.t == 0) ? this.s : (this[0] << 16) >> 16
+Buffer.prototype.toJSON = function toJSON () {
+ return {
+ type: 'Buffer',
+ data: Array.prototype.slice.call(this._arr || this, 0)
+ }
}
-// (protected) return x s.t. r^x < DV
-function bnpChunkSize(r) {
- return Math.floor(Math.LN2 * this.DB / Math.log(r))
+function base64Slice (buf, start, end) {
+ if (start === 0 && end === buf.length) {
+ return base64.fromByteArray(buf)
+ } else {
+ return base64.fromByteArray(buf.slice(start, end))
+ }
}
-// (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
-}
+function utf8Slice (buf, start, end) {
+ end = Math.min(buf.length, end)
+ var res = []
-// (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
-}
+ 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
-// (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
+ 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
+ }
+ }
+ }
}
- w = b * w + x
- if (++j >= cs) {
- self.dMultiply(d)
- self.dAddOffset(w, 0)
- j = 0
- w = 0
+
+ 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
}
- if (j > 0) {
- self.dMultiply(Math.pow(b, j))
- self.dAddOffset(w, 0)
- }
- if (mi) BigInteger.ZERO.subTo(self, self)
+
+ return decodeCodePointsArray(res)
}
-// (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)
+// 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()
}
-}
-// (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
- }
+ // 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 r
+ return res
}
-function bnEquals(a) {
- return (this.compareTo(a) == 0)
-}
+function asciiSlice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
-function bnMin(a) {
- return (this.compareTo(a) < 0) ? this : a
+ for (var i = start; i < end; ++i) {
+ ret += String.fromCharCode(buf[i] & 0x7F)
+ }
+ return ret
}
-function bnMax(a) {
- return (this.compareTo(a) > 0) ? this : a
-}
+function latin1Slice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
-// (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
+ for (var i = start; i < end; ++i) {
+ ret += String.fromCharCode(buf[i])
}
- r.s = op(self.s, a.s)
- r.clamp()
+ return ret
}
-// (public) this & a
-function op_and(x, y) {
- return x & y
-}
+function hexSlice (buf, start, end) {
+ var len = buf.length
-function bnAnd(a) {
- var r = new BigInteger()
- this.bitwiseTo(a, op_and, r)
- return r
-}
+ if (!start || start < 0) start = 0
+ if (!end || end < 0 || end > len) end = len
-// (public) this | a
-function op_or(x, y) {
- return x | y
+ var out = ''
+ for (var i = start; i < end; ++i) {
+ out += toHex(buf[i])
+ }
+ return out
}
-function bnOr(a) {
- var r = new BigInteger()
- this.bitwiseTo(a, op_or, r)
- return r
+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
}
-// (public) this ^ a
-function op_xor(x, y) {
- return x ^ y
-}
+Buffer.prototype.slice = function slice (start, end) {
+ var len = this.length
+ start = ~~start
+ end = end === undefined ? len : ~~end
-function bnXor(a) {
- var r = new BigInteger()
- this.bitwiseTo(a, op_xor, r)
- return r
-}
+ if (start < 0) {
+ start += len
+ if (start < 0) start = 0
+ } else if (start > len) {
+ start = len
+ }
-// (public) this & ~a
-function op_andnot(x, y) {
- return x & ~y
-}
+ if (end < 0) {
+ end += len
+ if (end < 0) end = 0
+ } else if (end > len) {
+ end = len
+ }
-function bnAndNot(a) {
- var r = new BigInteger()
- this.bitwiseTo(a, op_andnot, r)
- return r
-}
+ if (end < start) end = start
-// (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
+ var newBuf = this.subarray(start, end)
+ // Return an augmented `Uint8Array` instance
+ newBuf.__proto__ = Buffer.prototype
+ return newBuf
}
-// (public) this << n
-function bnShiftLeft(n) {
- var r = new BigInteger()
- if (n < 0) this.rShiftTo(-n, r)
- else this.lShiftTo(n, r)
- return r
+/*
+ * 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')
}
-// (public) this >> n
-function bnShiftRight(n) {
- var r = new BigInteger()
- if (n < 0) this.lShiftTo(-n, r)
- else this.rShiftTo(n, r)
- return r
-}
+Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
-// 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
+ var val = this[offset]
+ var mul = 1
+ var i = 0
+ while (++i < byteLength && (mul *= 0x100)) {
+ val += this[offset + i] * mul
}
- 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 val
}
-// return number of 1 bits in x
-function cbit(x) {
- var r = 0
- while (x != 0) {
- x &= x - 1
- ++r
+Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) {
+ checkOffset(offset, byteLength, this.length)
}
- 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
+ var val = this[offset + --byteLength]
+ var mul = 1
+ while (byteLength > 0 && (mul *= 0x100)) {
+ val += this[offset + --byteLength] * mul
+ }
+
+ return val
}
-// (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)
+Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 1, this.length)
+ return this[offset]
}
-// (protected) this op (1<<n)
-function bnpChangeBit(n, op) {
- var r = BigInteger.ONE.shiftLeft(n)
- this.bitwiseTo(r, op, r)
- return r
+Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return this[offset] | (this[offset + 1] << 8)
}
-// (public) this | (1<<n)
-function bnSetBit(n) {
- return this.changeBit(n, op_or)
+Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return (this[offset] << 8) | this[offset + 1]
}
-// (public) this & ~(1<<n)
-function bnClearBit(n) {
- return this.changeBit(n, op_andnot)
+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)
}
-// (public) this ^ (1<<n)
-function bnFlipBit(n) {
- return this.changeBit(n, op_xor)
+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])
}
-// (protected) r = this + a
-function bnpAddTo(a, r) {
- var self = this
+Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
- 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
+ var val = this[offset]
+ var mul = 1
+ var i = 0
+ while (++i < byteLength && (mul *= 0x100)) {
+ val += this[offset + i] * mul
}
- 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()
-}
+ mul *= 0x80
-// (public) this + a
-function bnAdd(a) {
- var r = new BigInteger()
- this.addTo(a, r)
- return r
-}
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
-// (public) this - a
-function bnSubtract(a) {
- var r = new BigInteger()
- this.subTo(a, r)
- return r
+ return val
}
-// (public) this * a
-function bnMultiply(a) {
- var r = new BigInteger()
- this.multiplyTo(a, r)
- return r
-}
+Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
-// (public) this^2
-function bnSquare() {
- var r = new BigInteger()
- this.squareTo(r)
- return r
-}
+ var i = byteLength
+ var mul = 1
+ var val = this[offset + --i]
+ while (i > 0 && (mul *= 0x100)) {
+ val += this[offset + --i] * mul
+ }
+ mul *= 0x80
-// (public) this / a
-function bnDivide(a) {
- var r = new BigInteger()
- this.divRemTo(a, r, null)
- return r
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+ return val
}
-// (public) this % a
-function bnRemainder(a) {
- var r = new BigInteger()
- this.divRemTo(a, null, r)
- return r
+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)
}
-// (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)
+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
}
-// (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()
+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
}
-// (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]
- }
+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)
}
-// A "null" reducer
-function NullExp() {}
+Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
-function nNop(x) {
- return x
+ return (this[offset] << 24) |
+ (this[offset + 1] << 16) |
+ (this[offset + 2] << 8) |
+ (this[offset + 3])
}
-function nMulTo(x, y, r) {
- x.multiplyTo(y, r)
+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)
}
-function nSqrTo(x, r) {
- x.squareTo(r)
+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)
}
-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())
+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)
}
-// (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()
+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)
}
-// (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)
+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')
}
-// 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
-}
+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)
+ }
-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
+ var mul = 1
+ var i = 0
+ this[offset] = value & 0xFF
+ while (++i < byteLength && (mul *= 0x100)) {
+ this[offset + i] = (value / mul) & 0xFF
}
-}
-function barrettRevert(x) {
- return x
+ return offset + byteLength
}
-// 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()
+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)
}
- 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)
+
+ 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
}
-// r = x^2 mod m; x != r
-function barrettSqrTo(x, r) {
- x.squareTo(r)
- this.reduce(r)
+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
}
-// r = x*y mod m; x,y != r
-function barrettMulTo(x, y, r) {
- x.multiplyTo(y, r)
- this.reduce(r)
+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
}
-Barrett.prototype.convert = barrettConvert
-Barrett.prototype.revert = barrettRevert
-Barrett.prototype.reduce = barrettReduce
-Barrett.prototype.mulTo = barrettMulTo
-Barrett.prototype.sqrTo = barrettSqrTo
+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
+}
-// (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)
+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
+}
- // 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
- }
- }
+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
+}
- 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)
- }
+Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ var limit = Math.pow(2, (8 * byteLength) - 1)
- 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)
- }
+ checkInt(this, value, offset, byteLength, limit - 1, -limit)
+ }
- 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
- }
+ 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 z.revert(r)
+
+ return offset + byteLength
}
-// (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)
+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)
}
- 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)
+
+ 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
}
- if (g > 0) y.lShiftTo(g, y)
- return y
+
+ return offset + byteLength
}
-// (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
+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
}
-// (public) 1/this % m (HAC 14.61)
-function bnModInverse(m) {
- var ac = m.isEven()
- 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
- if (d.compareTo(m) >= 0) return d.subtract(m)
- if (d.signum() < 0) d.addTo(m, d)
- else return d
- if (d.signum() < 0) return d.add(m)
- else return d
+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
}
-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
-]
+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
+}
-var lplim = (1 << 26) / lowprimes[lowprimes.length - 1]
+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
+}
-// (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
+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)
}
- return x.millerRabin(t)
+ ieee754.write(buf, value, offset, littleEndian, 23, 4)
+ return offset + 4
}
-// (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
+Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
+ return writeFloat(this, value, offset, true, noAssert)
}
-// 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":4}],2:[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')
+Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
+ return writeFloat(this, value, offset, false, noAssert)
+}
-/**
- * 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))
+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)
}
-
- return new BigInteger(byteArray)
+ ieee754.write(buf, value, offset, littleEndian, 52, 8)
+ return offset + 8
}
-/**
- * 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
+Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, true, noAssert)
}
-BigInteger.fromDERInteger = function(byteArray) {
- return new BigInteger(byteArray)
+Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, false, noAssert)
}
-/*
- * 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
+// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
+Buffer.prototype.copy = function copy (target, targetStart, start, end) {
+ 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
-BigInteger.fromBuffer = function(buffer) {
- // BigInteger expects a DER integer conformant byte array
- if (buffer[0] & 0x80) {
- var byteArray = Array.prototype.slice.call(buffer)
+ // Copy 0 bytes; we're done
+ if (end === start) return 0
+ if (target.length === 0 || this.length === 0) return 0
- return new BigInteger([0].concat(byteArray))
+ // Fatal error conditions
+ if (targetStart < 0) {
+ throw new RangeError('targetStart out of bounds')
}
+ if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
+ if (end < 0) throw new RangeError('sourceEnd out of bounds')
- return new BigInteger(buffer)
-}
+ // Are we oob?
+ if (end > this.length) end = this.length
+ if (target.length - targetStart < end - start) {
+ end = target.length - targetStart + start
+ }
-BigInteger.fromHex = function(hex) {
- if (hex === '') return BigInteger.ZERO
+ var len = end - start
+ var i
- 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)
-}
+ if (this === target && start < targetStart && targetStart < end) {
+ // descending copy from end
+ for (i = len - 1; i >= 0; --i) {
+ target[i + targetStart] = this[i + start]
+ }
+ } else if (len < 1000) {
+ // ascending copy from start
+ for (i = 0; i < len; ++i) {
+ target[i + targetStart] = this[i + start]
+ }
+ } else {
+ Uint8Array.prototype.set.call(
+ target,
+ this.subarray(start, start + len),
+ targetStart
+ )
+ }
-BigInteger.prototype.toBuffer = function(size) {
- var byteArray = this.toByteArrayUnsigned()
- var zeros = []
+ return len
+}
- var padding = size - byteArray.length
- while (zeros.length < padding) zeros.push(0)
+// 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 (val.length === 1) {
+ var code = val.charCodeAt(0)
+ if (code < 256) {
+ val = code
+ }
+ }
+ 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)
+ }
+ } else if (typeof val === 'number') {
+ val = val & 255
+ }
- return new Buffer(zeros.concat(byteArray))
-}
+ // 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')
+ }
-BigInteger.prototype.toHex = function(size) {
- return this.toBuffer(size).toString('hex')
-}
+ if (end <= start) {
+ return this
+ }
-}).call(this,require("buffer").Buffer)
-},{"./bigi":1,"assert":5,"buffer":7}],3:[function(require,module,exports){
-var BigInteger = require('./bigi')
+ start = start >>> 0
+ end = end === undefined ? this.length : end >>> 0
-//addons
-require('./convert')
+ if (!val) val = 0
-module.exports = BigInteger
-},{"./bigi":1,"./convert":2}],4:[function(require,module,exports){
-module.exports={
- "name": "bigi",
- "version": "1.4.0",
- "description": "Big integers.",
- "keywords": [
- "cryptography",
- "math",
- "bitcoin",
- "arbitrary",
- "precision",
- "arithmetic",
- "big",
- "integer",
- "int",
- "number",
- "biginteger",
- "bigint",
- "bignumber",
- "decimal",
- "float"
- ],
- "devDependencies": {
- "mocha": "^1.20.1",
- "jshint": "^2.5.1",
- "coveralls": "^2.10.0",
- "istanbul": "^0.2.11"
- },
- "repository": {
- "url": "https://github.com/cryptocoinjs/bigi",
- "type": "git"
- },
- "main": "./lib/index.js",
- "scripts": {
- "test": "_mocha -- test/*.js",
- "jshint": "jshint --config jshint.json lib/*.js ; true",
- "unit": "mocha",
- "coverage": "istanbul cover ./node_modules/.bin/_mocha -- --reporter list test/*.js",
- "coveralls": "npm run-script coverage && node ./node_modules/.bin/coveralls < coverage/lcov.info"
- },
- "dependencies": {},
- "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"
- ]
- },
- "bugs": {
- "url": "https://github.com/cryptocoinjs/bigi/issues"
- },
- "homepage": "https://github.com/cryptocoinjs/bigi",
- "_id": "bigi@1.4.0",
- "dist": {
- "shasum": "90ac1aeac0a531216463bdb58f42c1e05c8407ac",
- "tarball": "http://registry.npmjs.org/bigi/-/bigi-1.4.0.tgz"
- },
- "_from": "bigi@^1.4.0",
- "_npmVersion": "1.4.3",
- "_npmUser": {
- "name": "jp",
- "email": "jprichardson@gmail.com"
- },
- "maintainers": [
- {
- "name": "jp",
- "email": "jprichardson@gmail.com"
- },
- {
- "name": "midnightlightning",
- "email": "boydb@midnightdesign.ws"
- },
- {
- "name": "sidazhang",
- "email": "sidazhang89@gmail.com"
- },
- {
- "name": "nadav",
- "email": "npm@shesek.info"
+ var i
+ if (typeof val === 'number') {
+ for (i = start; i < end; ++i) {
+ this[i] = val
}
- ],
- "directories": {},
- "_shasum": "90ac1aeac0a531216463bdb58f42c1e05c8407ac",
- "_resolved": "https://registry.npmjs.org/bigi/-/bigi-1.4.0.tgz"
+ } else {
+ var bytes = Buffer.isBuffer(val)
+ ? val
+ : new Buffer(val, encoding)
+ var len = bytes.length
+ for (i = 0; i < end - start; ++i) {
+ this[i + start] = bytes[i % len]
+ }
+ }
+
+ return this
}
-},{}],5:[function(require,module,exports){
-// 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.
+// HELPER FUNCTIONS
+// ================
-// when used in node, this will actually load the util module we depend on
-// versus loading the builtin util module as happens otherwise
-// this is a bug in node module loading as far as I am concerned
-var util = require('util/');
+var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
-var pSlice = Array.prototype.slice;
-var hasOwn = Object.prototype.hasOwnProperty;
+function base64clean (str) {
+ // 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
+}
-// 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.
+function toHex (n) {
+ if (n < 16) return '0' + n.toString(16)
+ return n.toString(16)
+}
-var assert = module.exports = ok;
+function utf8ToBytes (string, units) {
+ units = units || Infinity
+ var codePoint
+ var length = string.length
+ var leadSurrogate = null
+ var bytes = []
-// 2. The AssertionError is defined in assert.
-// new assert.AssertionError({ message: message,
-// actual: actual,
-// expected: expected })
+ for (var i = 0; i < length; ++i) {
+ codePoint = string.charCodeAt(i)
-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;
+ // 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
+ }
- 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;
+ // valid lead
+ leadSurrogate = codePoint
- // try to strip useless frames
- var fn_name = stackStartFunction.name;
- 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);
+ continue
}
- this.stack = out;
+ // 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)
}
- }
-};
-// assert.AssertionError instanceof Error
-util.inherits(assert.AssertionError, Error);
+ leadSurrogate = null
-function replacer(key, value) {
- if (util.isUndefined(value)) {
- return '' + value;
- }
- if (util.isNumber(value) && !isFinite(value)) {
- return value.toString();
- }
- if (util.isFunction(value) || util.isRegExp(value)) {
- return value.toString();
+ // 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 value;
+
+ return bytes
}
-function truncate(s, n) {
- if (util.isString(s)) {
- return s.length < n ? s : s.slice(0, n);
- } else {
- return s;
+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 getMessage(self) {
- return truncate(JSON.stringify(self.actual, replacer), 128) + ' ' +
- self.operator + ' ' +
- truncate(JSON.stringify(self.expected, replacer), 128);
-}
+function utf16leToBytes (str, units) {
+ var c, hi, lo
+ var byteArray = []
+ for (var i = 0; i < str.length; ++i) {
+ if ((units -= 2) < 0) break
-// 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.
+ c = str.charCodeAt(i)
+ hi = c >> 8
+ lo = c % 256
+ byteArray.push(lo)
+ byteArray.push(hi)
+ }
-function fail(actual, expected, message, operator, stackStartFunction) {
- throw new assert.AssertionError({
- message: message,
- actual: actual,
- expected: expected,
- operator: operator,
- stackStartFunction: stackStartFunction
- });
+ return byteArray
}
-// 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);
+function base64ToBytes (str) {
+ return base64.toByteArray(base64clean(str))
}
-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)) {
- fail(actual, expected, message, 'deepEqual', assert.deepEqual);
- }
-};
-
-function _deepEqual(actual, expected) {
- // 7.1. All identical values are equivalent, as determined by ===.
- if (actual === expected) {
- return true;
-
- } else if (util.isBuffer(actual) && util.isBuffer(expected)) {
- if (actual.length != expected.length) return false;
-
- for (var i = 0; i < actual.length; i++) {
- if (actual[i] !== expected[i]) return false;
- }
-
- return true;
-
- // 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 (!util.isObject(actual) && !util.isObject(expected)) {
- return actual == expected;
- // 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 {
- return objEquiv(actual, expected);
+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
}
-function isArguments(object) {
- return Object.prototype.toString.call(object) == '[object Arguments]';
+// Node 0.10 supports `ArrayBuffer` but lacks `ArrayBuffer.isView`
+function isArrayBufferView (obj) {
+ return (typeof ArrayBuffer.isView === 'function') && ArrayBuffer.isView(obj)
}
-function objEquiv(a, b) {
- if (util.isNullOrUndefined(a) || util.isNullOrUndefined(b))
- return false;
- // an identical 'prototype' property.
- if (a.prototype !== b.prototype) return false;
- // if one is a primitive, the other must be same
- if (util.isPrimitive(a) || util.isPrimitive(b)) {
- return a === b;
- }
- var aIsArgs = isArguments(a),
- bIsArgs = isArguments(b);
- if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
- return false;
- if (aIsArgs) {
- a = pSlice.call(a);
- b = pSlice.call(b);
- return _deepEqual(a, b);
- }
- var ka = objectKeys(a),
- kb = objectKeys(b),
- 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])) return false;
- }
- return true;
+function numberIsNaN (obj) {
+ return obj !== obj // eslint-disable-line no-self-compare
}
-// 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)) {
- fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
- }
-};
-
-// 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);
- }
-};
+},{"base64-js":1,"ieee754":3}],3:[function(require,module,exports){
+exports.read = function (buffer, offset, isLE, mLen, nBytes) {
+ var e, m
+ var eLen = nBytes * 8 - mLen - 1
+ var eMax = (1 << eLen) - 1
+ var eBias = eMax >> 1
+ var nBits = -7
+ var i = isLE ? (nBytes - 1) : 0
+ var d = isLE ? -1 : 1
+ var s = buffer[offset + i]
-// 10. The strict non-equality assertion tests for strict inequality, as
-// determined by !==. assert.notStrictEqual(actual, expected, message_opt);
+ i += d
-assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
- if (actual === expected) {
- fail(actual, expected, message, '!==', assert.notStrictEqual);
- }
-};
+ e = s & ((1 << (-nBits)) - 1)
+ s >>= (-nBits)
+ nBits += eLen
+ for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
-function expectedException(actual, expected) {
- if (!actual || !expected) {
- return false;
- }
+ m = e & ((1 << (-nBits)) - 1)
+ e >>= (-nBits)
+ nBits += mLen
+ for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
- if (Object.prototype.toString.call(expected) == '[object RegExp]') {
- return expected.test(actual);
- } else if (actual instanceof expected) {
- return true;
- } else if (expected.call({}, actual) === true) {
- return true;
+ if (e === 0) {
+ e = 1 - eBias
+ } else if (e === eMax) {
+ return m ? NaN : ((s ? -1 : 1) * Infinity)
+ } else {
+ m = m + Math.pow(2, mLen)
+ e = e - eBias
}
-
- return false;
+ return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}
-function _throws(shouldThrow, block, expected, message) {
- var actual;
-
- if (util.isString(expected)) {
- message = expected;
- expected = null;
- }
+exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
+ var e, m, c
+ var eLen = nBytes * 8 - mLen - 1
+ var eMax = (1 << eLen) - 1
+ var eBias = eMax >> 1
+ var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
+ var i = isLE ? 0 : (nBytes - 1)
+ var d = isLE ? 1 : -1
+ var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
- try {
- block();
- } catch (e) {
- actual = e;
- }
+ value = Math.abs(value)
- message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
- (message ? ' ' + message : '.');
+ if (isNaN(value) || value === Infinity) {
+ m = isNaN(value) ? 1 : 0
+ e = eMax
+ } else {
+ e = Math.floor(Math.log(value) / Math.LN2)
+ if (value * (c = Math.pow(2, -e)) < 1) {
+ e--
+ c *= 2
+ }
+ if (e + eBias >= 1) {
+ value += rt / c
+ } else {
+ value += rt * Math.pow(2, 1 - eBias)
+ }
+ if (value * c >= 2) {
+ e++
+ c /= 2
+ }
- if (shouldThrow && !actual) {
- fail(actual, expected, 'Missing expected exception' + message);
+ if (e + eBias >= eMax) {
+ m = 0
+ e = eMax
+ } else if (e + eBias >= 1) {
+ m = (value * c - 1) * Math.pow(2, mLen)
+ e = e + eBias
+ } else {
+ m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
+ e = 0
+ }
}
- if (!shouldThrow && expectedException(actual, expected)) {
- fail(actual, expected, 'Got unwanted exception' + message);
- }
+ for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
- if ((shouldThrow && actual && expected &&
- !expectedException(actual, expected)) || (!shouldThrow && actual)) {
- throw actual;
- }
+ e = (e << mLen) | m
+ eLen += mLen
+ for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+
+ buffer[offset + i - d] |= s * 128
}
-// 11. Expected to throw an error:
-// assert.throws(block, Error_opt, message_opt);
+},{}],4:[function(require,module,exports){
+window.basex = require('base-x')
+},{"base-x":5}],5:[function(require,module,exports){
+// base-x encoding
+// Forked from https://github.com/cryptocoinjs/bs58
+// Originally written by Mike Hearn for BitcoinJ
+// Copyright (c) 2011 Google Inc
+// Ported to JavaScript by Stefan Thomas
+// Merged Buffer refactorings from base58-native by Stephen Pair
+// Copyright (c) 2013 BitPay Inc
-assert.throws = function(block, /*optional*/error, /*optional*/message) {
- _throws.apply(this, [true].concat(pSlice.call(arguments)));
-};
+var Buffer = require('safe-buffer').Buffer
-// EXTENSION! This is annoying to write outside this module.
-assert.doesNotThrow = function(block, /*optional*/message) {
- _throws.apply(this, [false].concat(pSlice.call(arguments)));
-};
+module.exports = function base (ALPHABET) {
+ var ALPHABET_MAP = {}
+ var BASE = ALPHABET.length
+ var LEADER = ALPHABET.charAt(0)
-assert.ifError = function(err) { if (err) {throw err;}};
+ // pre-compute lookup table
+ for (var z = 0; z < ALPHABET.length; z++) {
+ var x = ALPHABET.charAt(z)
-var objectKeys = Object.keys || function (obj) {
- var keys = [];
- for (var key in obj) {
- if (hasOwn.call(obj, key)) keys.push(key);
+ if (ALPHABET_MAP[x] !== undefined) throw new TypeError(x + ' is ambiguous')
+ ALPHABET_MAP[x] = z
}
- return keys;
-};
-
-},{"util/":29}],6:[function(require,module,exports){
-
-},{}],7:[function(require,module,exports){
-/*!
- * The buffer module from node.js, for the browser.
- *
- * @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
- * @license MIT
- */
-
-var base64 = require('base64-js')
-var ieee754 = require('ieee754')
-var isArray = require('is-array')
-exports.Buffer = Buffer
-exports.SlowBuffer = SlowBuffer
-exports.INSPECT_MAX_BYTES = 50
-Buffer.poolSize = 8192 // not used by this implementation
+ function encode (source) {
+ if (source.length === 0) return ''
-var rootParent = {}
+ var digits = [0]
+ for (var i = 0; i < source.length; ++i) {
+ for (var j = 0, carry = source[i]; j < digits.length; ++j) {
+ carry += digits[j] << 8
+ digits[j] = carry % BASE
+ carry = (carry / BASE) | 0
+ }
-/**
- * If `Buffer.TYPED_ARRAY_SUPPORT`:
- * === true Use Uint8Array implementation (fastest)
- * === false Use 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+.
- *
- * Due to various browser bugs, sometimes the Object implementation will be used even
- * when the browser supports typed arrays.
- *
- * Note:
- *
- * - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
- * See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
- *
- * - Safari 5-7 lacks support for changing the `Object.prototype.constructor` property
- * on objects.
- *
- * - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
- *
- * - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
- * incorrect length in some situations.
+ while (carry > 0) {
+ digits.push(carry % BASE)
+ carry = (carry / BASE) | 0
+ }
+ }
- * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
- * get the Object implementation, which is slower but behaves correctly.
- */
-Buffer.TYPED_ARRAY_SUPPORT = (function () {
- function Bar () {}
- try {
- var arr = new Uint8Array(1)
- arr.foo = function () { return 42 }
- arr.constructor = Bar
- return arr.foo() === 42 && // typed array instances can be augmented
- arr.constructor === Bar && // constructor can be set
- typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
- arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
- } catch (e) {
- return false
- }
-})()
+ var string = ''
-function kMaxLength () {
- return Buffer.TYPED_ARRAY_SUPPORT
- ? 0x7fffffff
- : 0x3fffffff
-}
+ // deal with leading zeros
+ for (var k = 0; source[k] === 0 && k < source.length - 1; ++k) string += ALPHABET[0]
+ // convert digits to a string
+ for (var q = digits.length - 1; q >= 0; --q) string += ALPHABET[digits[q]]
-/**
- * Class: Buffer
- * =============
- *
- * The Buffer constructor returns instances of `Uint8Array` that are augmented
- * with function properties for all the node `Buffer` API functions. We use
- * `Uint8Array` so that square bracket notation works as expected -- it returns
- * a single octet.
- *
- * By augmenting the instances, we can avoid modifying the `Uint8Array`
- * prototype.
- */
-function Buffer (arg) {
- if (!(this instanceof Buffer)) {
- // Avoid going through an ArgumentsAdaptorTrampoline in the common case.
- if (arguments.length > 1) return new Buffer(arg, arguments[1])
- return new Buffer(arg)
+ return string
}
- this.length = 0
- this.parent = undefined
+ function decodeUnsafe (string) {
+ if (string.length === 0) return Buffer.allocUnsafe(0)
- // Common case.
- if (typeof arg === 'number') {
- return fromNumber(this, arg)
- }
-
- // Slightly less common case.
- if (typeof arg === 'string') {
- return fromString(this, arg, arguments.length > 1 ? arguments[1] : 'utf8')
- }
+ var bytes = [0]
+ for (var i = 0; i < string.length; i++) {
+ var value = ALPHABET_MAP[string[i]]
+ if (value === undefined) return
- // Unusual.
- return fromObject(this, arg)
-}
+ for (var j = 0, carry = value; j < bytes.length; ++j) {
+ carry += bytes[j] * BASE
+ bytes[j] = carry & 0xff
+ carry >>= 8
+ }
-function fromNumber (that, length) {
- that = allocate(that, length < 0 ? 0 : checked(length) | 0)
- if (!Buffer.TYPED_ARRAY_SUPPORT) {
- for (var i = 0; i < length; i++) {
- that[i] = 0
+ while (carry > 0) {
+ bytes.push(carry & 0xff)
+ carry >>= 8
+ }
}
- }
- return that
-}
-
-function fromString (that, string, encoding) {
- if (typeof encoding !== 'string' || encoding === '') encoding = 'utf8'
-
- // Assumption: byteLength() return value is always < kMaxLength.
- var length = byteLength(string, encoding) | 0
- that = allocate(that, length)
-
- that.write(string, encoding)
- return that
-}
-
-function fromObject (that, object) {
- if (Buffer.isBuffer(object)) return fromBuffer(that, object)
- if (isArray(object)) return fromArray(that, object)
-
- if (object == null) {
- throw new TypeError('must start with number, buffer, array or string')
- }
-
- if (typeof ArrayBuffer !== 'undefined') {
- if (object.buffer instanceof ArrayBuffer) {
- return fromTypedArray(that, object)
- }
- if (object instanceof ArrayBuffer) {
- return fromArrayBuffer(that, object)
+ // deal with leading zeros
+ for (var k = 0; string[k] === LEADER && k < string.length - 1; ++k) {
+ bytes.push(0)
}
- }
-
- if (object.length) return fromArrayLike(that, object)
-
- return fromJsonObject(that, object)
-}
-function fromBuffer (that, buffer) {
- var length = checked(buffer.length) | 0
- that = allocate(that, length)
- buffer.copy(that, 0, 0, length)
- return that
-}
-
-function fromArray (that, array) {
- var length = checked(array.length) | 0
- that = allocate(that, length)
- for (var i = 0; i < length; i += 1) {
- that[i] = array[i] & 255
+ return Buffer.from(bytes.reverse())
}
- return that
-}
-// Duplicate of fromArray() to keep fromArray() monomorphic.
-function fromTypedArray (that, array) {
- var length = checked(array.length) | 0
- that = allocate(that, length)
- // Truncating the elements is probably not what people expect from typed
- // arrays with BYTES_PER_ELEMENT > 1 but it's compatible with the behavior
- // of the old Buffer constructor.
- for (var i = 0; i < length; i += 1) {
- that[i] = array[i] & 255
- }
- return that
-}
+ function decode (string) {
+ var buffer = decodeUnsafe(string)
+ if (buffer) return buffer
-function fromArrayBuffer (that, array) {
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- // Return an augmented `Uint8Array` instance, for best performance
- array.byteLength
- that = Buffer._augment(new Uint8Array(array))
- } else {
- // Fallback: Return an object instance of the Buffer class
- that = fromTypedArray(that, new Uint8Array(array))
+ throw new Error('Non-base' + BASE + ' character')
}
- return that
-}
-function fromArrayLike (that, array) {
- var length = checked(array.length) | 0
- that = allocate(that, length)
- for (var i = 0; i < length; i += 1) {
- that[i] = array[i] & 255
+ return {
+ encode: encode,
+ decodeUnsafe: decodeUnsafe,
+ decode: decode
}
- return that
}
-// Deserialize { type: 'Buffer', data: [1,2,3,...] } into a Buffer object.
-// Returns a zero-length buffer for inputs that don't conform to the spec.
-function fromJsonObject (that, object) {
- var array
- var length = 0
+},{"safe-buffer":6}],6:[function(require,module,exports){
+module.exports = require('buffer')
- if (object.type === 'Buffer' && isArray(object.data)) {
- array = object.data
- length = checked(array.length) | 0
- }
- that = allocate(that, length)
+},{"buffer":2}]},{},[4])(4)
+});</script>
+ <script>(function (root) {
+ "use strict";
- for (var i = 0; i < length; i += 1) {
- that[i] = array[i] & 255
- }
- return that
-}
+/***** unorm.js *****/
-function allocate (that, length) {
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- // Return an augmented `Uint8Array` instance, for best performance
- that = Buffer._augment(new Uint8Array(length))
- } else {
- // Fallback: Return an object instance of the Buffer class
- that.length = length
- that._isBuffer = true
- }
+/*
+ * UnicodeNormalizer 1.0.0
+ * Copyright (c) 2008 Matsuza
+ * Dual licensed under the MIT (MIT-LICENSE.txt) and GPL (GPL-LICENSE.txt) licenses.
+ * $Date: 2008-06-05 16:44:17 +0200 (Thu, 05 Jun 2008) $
+ * $Rev: 13309 $
+ */
- var fromPool = length !== 0 && length <= Buffer.poolSize >>> 1
- if (fromPool) that.parent = rootParent
+ var DEFAULT_FEATURE = [null, 0, {}];
+ var CACHE_THRESHOLD = 10;
+ var SBase = 0xAC00, LBase = 0x1100, VBase = 0x1161, TBase = 0x11A7, LCount = 19, VCount = 21, TCount = 28;
+ var NCount = VCount * TCount; // 588
+ var SCount = LCount * NCount; // 11172
- return that
-}
+ var UChar = function(cp, feature){
+ this.codepoint = cp;
+ this.feature = feature;
+ };
-function checked (length) {
- // Note: cannot use `length < kMaxLength` here because that fails when
- // length is NaN (which is otherwise coerced to zero.)
- if (length >= kMaxLength()) {
- throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
- 'size: 0x' + kMaxLength().toString(16) + ' bytes')
- }
- return length | 0
-}
+ // Strategies
+ var cache = {};
+ var cacheCounter = [];
+ for (var i = 0; i <= 0xFF; ++i){
+ cacheCounter[i] = 0;
+ }
-function SlowBuffer (subject, encoding) {
- if (!(this instanceof SlowBuffer)) return new SlowBuffer(subject, encoding)
+ function fromCache(next, cp, needFeature){
+ var ret = cache[cp];
+ if(!ret){
+ ret = next(cp, needFeature);
+ if(!!ret.feature && ++cacheCounter[(cp >> 8) & 0xFF] > CACHE_THRESHOLD){
+ cache[cp] = ret;
+ }
+ }
+ return ret;
+ }
- var buf = new Buffer(subject, encoding)
- delete buf.parent
- return buf
-}
+ function fromData(next, cp, needFeature){
+ var hash = cp & 0xFF00;
+ var dunit = UChar.udata[hash] || {};
+ var f = dunit[cp];
+ return f ? new UChar(cp, f) : new UChar(cp, DEFAULT_FEATURE);
+ }
+ function fromCpOnly(next, cp, needFeature){
+ return !!needFeature ? next(cp, needFeature) : new UChar(cp, null);
+ }
+ function fromRuleBasedJamo(next, cp, needFeature){
+ var j;
+ if(cp < LBase || (LBase + LCount <= cp && cp < SBase) || (SBase + SCount < cp)){
+ return next(cp, needFeature);
+ }
+ if(LBase <= cp && cp < LBase + LCount){
+ var c = {};
+ var base = (cp - LBase) * VCount;
+ for (j = 0; j < VCount; ++j){
+ c[VBase + j] = SBase + TCount * (j + base);
+ }
+ return new UChar(cp, [,,c]);
+ }
-Buffer.isBuffer = function isBuffer (b) {
- return !!(b != null && b._isBuffer)
-}
+ var SIndex = cp - SBase;
+ var TIndex = SIndex % TCount;
+ var feature = [];
+ if(TIndex !== 0){
+ feature[0] = [SBase + SIndex - TIndex, TBase + TIndex];
+ } else {
+ feature[0] = [LBase + Math.floor(SIndex / NCount), VBase + Math.floor((SIndex % NCount) / TCount)];
+ feature[2] = {};
+ for (j = 1; j < TCount; ++j){
+ feature[2][TBase + j] = cp + j;
+ }
+ }
+ return new UChar(cp, feature);
+ }
+ function fromCpFilter(next, cp, needFeature){
+ return cp < 60 || 13311 < cp && cp < 42607 ? new UChar(cp, DEFAULT_FEATURE) : next(cp, needFeature);
+ }
-Buffer.compare = function compare (a, b) {
- if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
- throw new TypeError('Arguments must be Buffers')
- }
+ var strategies = [fromCpFilter, fromCache, fromCpOnly, fromRuleBasedJamo, fromData];
- if (a === b) return 0
+ UChar.fromCharCode = strategies.reduceRight(function (next, strategy) {
+ return function (cp, needFeature) {
+ return strategy(next, cp, needFeature);
+ };
+ }, null);
- var x = a.length
- var y = b.length
+ UChar.isHighSurrogate = function(cp){
+ return cp >= 0xD800 && cp <= 0xDBFF;
+ };
+ UChar.isLowSurrogate = function(cp){
+ return cp >= 0xDC00 && cp <= 0xDFFF;
+ };
- var i = 0
- var len = Math.min(x, y)
- while (i < len) {
- if (a[i] !== b[i]) break
+ UChar.prototype.prepFeature = function(){
+ if(!this.feature){
+ this.feature = UChar.fromCharCode(this.codepoint, true).feature;
+ }
+ };
- ++i
- }
+ UChar.prototype.toString = function(){
+ if(this.codepoint < 0x10000){
+ return String.fromCharCode(this.codepoint);
+ } else {
+ var x = this.codepoint - 0x10000;
+ return String.fromCharCode(Math.floor(x / 0x400) + 0xD800, x % 0x400 + 0xDC00);
+ }
+ };
- if (i !== len) {
- x = a[i]
- y = b[i]
- }
+ UChar.prototype.getDecomp = function(){
+ this.prepFeature();
+ return this.feature[0] || null;
+ };
- if (x < y) return -1
- if (y < x) return 1
- return 0
-}
+ UChar.prototype.isCompatibility = function(){
+ this.prepFeature();
+ return !!this.feature[1] && (this.feature[1] & (1 << 8));
+ };
+ UChar.prototype.isExclude = function(){
+ this.prepFeature();
+ return !!this.feature[1] && (this.feature[1] & (1 << 9));
+ };
+ UChar.prototype.getCanonicalClass = function(){
+ this.prepFeature();
+ return !!this.feature[1] ? (this.feature[1] & 0xff) : 0;
+ };
+ UChar.prototype.getComposite = function(following){
+ this.prepFeature();
+ if(!this.feature[2]){
+ return null;
+ }
+ var cp = this.feature[2][following.codepoint];
+ return cp ? UChar.fromCharCode(cp) : null;
+ };
-Buffer.isEncoding = function isEncoding (encoding) {
- switch (String(encoding).toLowerCase()) {
- case 'hex':
- case 'utf8':
- case 'utf-8':
- case 'ascii':
- case 'binary':
- case 'base64':
- case 'raw':
+ var UCharIterator = function(str){
+ this.str = str;
+ this.cursor = 0;
+ };
+ UCharIterator.prototype.next = function(){
+ if(!!this.str && this.cursor < this.str.length){
+ var cp = this.str.charCodeAt(this.cursor++);
+ var d;
+ if(UChar.isHighSurrogate(cp) && this.cursor < this.str.length && UChar.isLowSurrogate((d = this.str.charCodeAt(this.cursor)))){
+ cp = (cp - 0xD800) * 0x400 + (d -0xDC00) + 0x10000;
+ ++this.cursor;
+ }
+ return UChar.fromCharCode(cp);
+ } else {
+ this.str = null;
+ return null;
+ }
+ };
+
+ var RecursDecompIterator = function(it, cano){
+ this.it = it;
+ this.canonical = cano;
+ this.resBuf = [];
+ };
+
+ RecursDecompIterator.prototype.next = function(){
+ function recursiveDecomp(cano, uchar){
+ var decomp = uchar.getDecomp();
+ if(!!decomp && !(cano && uchar.isCompatibility())){
+ var ret = [];
+ for(var i = 0; i < decomp.length; ++i){
+ var a = recursiveDecomp(cano, UChar.fromCharCode(decomp[i]));
+ ret = ret.concat(a);
+ }
+ return ret;
+ } else {
+ return [uchar];
+ }
+ }
+ if(this.resBuf.length === 0){
+ var uchar = this.it.next();
+ if(!uchar){
+ return null;
+ }
+ this.resBuf = recursiveDecomp(this.canonical, uchar);
+ }
+ return this.resBuf.shift();
+ };
+
+ var DecompIterator = function(it){
+ this.it = it;
+ this.resBuf = [];
+ };
+
+ DecompIterator.prototype.next = function(){
+ var cc;
+ if(this.resBuf.length === 0){
+ do{
+ var uchar = this.it.next();
+ if(!uchar){
+ break;
+ }
+ cc = uchar.getCanonicalClass();
+ var inspt = this.resBuf.length;
+ if(cc !== 0){
+ for(; inspt > 0; --inspt){
+ var uchar2 = this.resBuf[inspt - 1];
+ var cc2 = uchar2.getCanonicalClass();
+ if(cc2 <= cc){
+ break;
+ }
+ }
+ }
+ this.resBuf.splice(inspt, 0, uchar);
+ } while(cc !== 0);
+ }
+ return this.resBuf.shift();
+ };
+
+ var CompIterator = function(it){
+ this.it = it;
+ this.procBuf = [];
+ this.resBuf = [];
+ this.lastClass = null;
+ };
+
+ CompIterator.prototype.next = function(){
+ while(this.resBuf.length === 0){
+ var uchar = this.it.next();
+ if(!uchar){
+ this.resBuf = this.procBuf;
+ this.procBuf = [];
+ break;
+ }
+ if(this.procBuf.length === 0){
+ this.lastClass = uchar.getCanonicalClass();
+ this.procBuf.push(uchar);
+ } else {
+ var starter = this.procBuf[0];
+ var composite = starter.getComposite(uchar);
+ var cc = uchar.getCanonicalClass();
+ if(!!composite && (this.lastClass < cc || this.lastClass === 0)){
+ this.procBuf[0] = composite;
+ } else {
+ if(cc === 0){
+ this.resBuf = this.procBuf;
+ this.procBuf = [];
+ }
+ this.lastClass = cc;
+ this.procBuf.push(uchar);
+ }
+ }
+ }
+ return this.resBuf.shift();
+ };
+
+ var createIterator = function(mode, str){
+ switch(mode){
+ case "NFD":
+ return new DecompIterator(new RecursDecompIterator(new UCharIterator(str), true));
+ case "NFKD":
+ return new DecompIterator(new RecursDecompIterator(new UCharIterator(str), false));
+ case "NFC":
+ return new CompIterator(new DecompIterator(new RecursDecompIterator(new UCharIterator(str), true)));
+ case "NFKC":
+ return new CompIterator(new DecompIterator(new RecursDecompIterator(new UCharIterator(str), false)));
+ }
+ throw mode + " is invalid";
+ };
+ var normalize = function(mode, str){
+ var it = createIterator(mode, str);
+ var ret = "";
+ var uchar;
+ while(!!(uchar = it.next())){
+ ret += uchar.toString();
+ }
+ return ret;
+ };
+
+ /* API functions */
+ function nfd(str){
+ return normalize("NFD", str);
+ }
+
+ function nfkd(str){
+ return normalize("NFKD", str);
+ }
+
+ function nfc(str){
+ return normalize("NFC", str);
+ }
+
+ function nfkc(str){
+ return normalize("NFKC", str);
+ }
+
+/* Unicode data */
+UChar.udata={
+0:{60:[,,{824:8814}],61:[,,{824:8800}],62:[,,{824:8815}],65:[,,{768:192,769:193,770:194,771:195,772:256,774:258,775:550,776:196,777:7842,778:197,780:461,783:512,785:514,803:7840,805:7680,808:260}],66:[,,{775:7682,803:7684,817:7686}],67:[,,{769:262,770:264,775:266,780:268,807:199}],68:[,,{775:7690,780:270,803:7692,807:7696,813:7698,817:7694}],69:[,,{768:200,769:201,770:202,771:7868,772:274,774:276,775:278,776:203,777:7866,780:282,783:516,785:518,803:7864,807:552,808:280,813:7704,816:7706}],70:[,,{775:7710}],71:[,,{769:500,770:284,772:7712,774:286,775:288,780:486,807:290}],72:[,,{770:292,775:7714,776:7718,780:542,803:7716,807:7720,814:7722}],73:[,,{768:204,769:205,770:206,771:296,772:298,774:300,775:304,776:207,777:7880,780:463,783:520,785:522,803:7882,808:302,816:7724}],74:[,,{770:308}],75:[,,{769:7728,780:488,803:7730,807:310,817:7732}],76:[,,{769:313,780:317,803:7734,807:315,813:7740,817:7738}],77:[,,{769:7742,775:7744,803:7746}],78:[,,{768:504,769:323,771:209,775:7748,780:327,803:7750,807:325,813:7754,817:7752}],79:[,,{768:210,769:211,770:212,771:213,772:332,774:334,775:558,776:214,777:7886,779:336,780:465,783:524,785:526,795:416,803:7884,808:490}],80:[,,{769:7764,775:7766}],82:[,,{769:340,775:7768,780:344,783:528,785:530,803:7770,807:342,817:7774}],83:[,,{769:346,770:348,775:7776,780:352,803:7778,806:536,807:350}],84:[,,{775:7786,780:356,803:7788,806:538,807:354,813:7792,817:7790}],85:[,,{768:217,769:218,770:219,771:360,772:362,774:364,776:220,777:7910,778:366,779:368,780:467,783:532,785:534,795:431,803:7908,804:7794,808:370,813:7798,816:7796}],86:[,,{771:7804,803:7806}],87:[,,{768:7808,769:7810,770:372,775:7814,776:7812,803:7816}],88:[,,{775:7818,776:7820}],89:[,,{768:7922,769:221,770:374,771:7928,772:562,775:7822,776:376,777:7926,803:7924}],90:[,,{769:377,770:7824,775:379,780:381,803:7826,817:7828}],97:[,,{768:224,769:225,770:226,771:227,772:257,774:259,775:551,776:228,777:7843,778:229,780:462,783:513,785:515,803:7841,805:7681,808:261}],98:[,,{775:7683,803:7685,817:7687}],99:[,,{769:263,770:265,775:267,780:269,807:231}],100:[,,{775:7691,780:271,803:7693,807:7697,813:7699,817:7695}],101:[,,{768:232,769:233,770:234,771:7869,772:275,774:277,775:279,776:235,777:7867,780:283,783:517,785:519,803:7865,807:553,808:281,813:7705,816:7707}],102:[,,{775:7711}],103:[,,{769:501,770:285,772:7713,774:287,775:289,780:487,807:291}],104:[,,{770:293,775:7715,776:7719,780:543,803:7717,807:7721,814:7723,817:7830}],105:[,,{768:236,769:237,770:238,771:297,772:299,774:301,776:239,777:7881,780:464,783:521,785:523,803:7883,808:303,816:7725}],106:[,,{770:309,780:496}],107:[,,{769:7729,780:489,803:7731,807:311,817:7733}],108:[,,{769:314,780:318,803:7735,807:316,813:7741,817:7739}],109:[,,{769:7743,775:7745,803:7747}],110:[,,{768:505,769:324,771:241,775:7749,780:328,803:7751,807:326,813:7755,817:7753}],111:[,,{768:242,769:243,770:244,771:245,772:333,774:335,775:559,776:246,777:7887,779:337,780:466,783:525,785:527,795:417,803:7885,808:491}],112:[,,{769:7765,775:7767}],114:[,,{769:341,775:7769,780:345,783:529,785:531,803:7771,807:343,817:7775}],115:[,,{769:347,770:349,775:7777,780:353,803:7779,806:537,807:351}],116:[,,{775:7787,776:7831,780:357,803:7789,806:539,807:355,813:7793,817:7791}],117:[,,{768:249,769:250,770:251,771:361,772:363,774:365,776:252,777:7911,778:367,779:369,780:468,783:533,785:535,795:432,803:7909,804:7795,808:371,813:7799,816:7797}],118:[,,{771:7805,803:7807}],119:[,,{768:7809,769:7811,770:373,775:7815,776:7813,778:7832,803:7817}],120:[,,{775:7819,776:7821}],121:[,,{768:7923,769:253,770:375,771:7929,772:563,775:7823,776:255,777:7927,778:7833,803:7925}],122:[,,{769:378,770:7825,775:380,780:382,803:7827,817:7829}],160:[[32],256],168:[[32,776],256,{768:8173,769:901,834:8129}],170:[[97],256],175:[[32,772],256],178:[[50],256],179:[[51],256],180:[[32,769],256],181:[[956],256],184:[[32,807],256],185:[[49],256],186:[[111],256],188:[[49,8260,52],256],189:[[49,8260,50],256],190:[[51,8260,52],256],192:[[65,768]],193:[[65,769]],194:[[65,770],,{768:7846,769:7844,771:7850,777:7848}],195:[[65,771]],196:[[65,776],,{772:478}],197:[[65,778],,{769:506}],198:[,,{769:508,772:482}],199:[[67,807],,{769:7688}],200:[[69,768]],201:[[69,769]],202:[[69,770],,{768:7872,769:7870,771:7876,777:7874}],203:[[69,776]],204:[[73,768]],205:[[73,769]],206:[[73,770]],207:[[73,776],,{769:7726}],209:[[78,771]],210:[[79,768]],211:[[79,769]],212:[[79,770],,{768:7890,769:7888,771:7894,777:7892}],213:[[79,771],,{769:7756,772:556,776:7758}],214:[[79,776],,{772:554}],216:[,,{769:510}],217:[[85,768]],218:[[85,769]],219:[[85,770]],220:[[85,776],,{768:475,769:471,772:469,780:473}],221:[[89,769]],224:[[97,768]],225:[[97,769]],226:[[97,770],,{768:7847,769:7845,771:7851,777:7849}],227:[[97,771]],228:[[97,776],,{772:479}],229:[[97,778],,{769:507}],230:[,,{769:509,772:483}],231:[[99,807],,{769:7689}],232:[[101,768]],233:[[101,769]],234:[[101,770],,{768:7873,769:7871,771:7877,777:7875}],235:[[101,776]],236:[[105,768]],237:[[105,769]],238:[[105,770]],239:[[105,776],,{76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+256:{256:[[65,772]],257:[[97,772]],258:[[65,774],,{768:7856,769:7854,771:7860,777:7858}],259:[[97,774],,{768:7857,769:7855,771:7861,777:7859}],260:[[65,808]],261:[[97,808]],262:[[67,769]],263:[[99,769]],264:[[67,770]],265:[[99,770]],266:[[67,775]],267:[[99,775]],268:[[67,780]],269:[[99,780]],270:[[68,780]],271:[[100,780]],274:[[69,772],,{768:7700,769:7702}],275:[[101,772],,{768:7701,769:7703}],276:[[69,774]],277:[[101,774]],278:[[69,775]],279:[[101,775]],280:[[69,808]],281:[[101,808]],282:[[69,780]],283:[[101,780]],284:[[71,770]],285:[[103,770]],286:[[71,774]],287:[[103,774]],288:[[71,775]],289:[[103,775]],290:[[71,807]],291:[[103,807]],292:[[72,770]],293:[[104,770]],296:[[73,771]],297:[[105,771]],298:[[73,772]],299:[[105,772]],300:[[73,774]],301:[[105,774]],302:[[73,808]],303:[[105,808]],304:[[73,775]],306:[[73,74],256],307:[[105,106],256],308:[[74,770]],309:[[106,770]],310:[[75,807]],311:[[107,807]],313:[[76,769]],314:[[108,769]],315:[[76,807]],316:[[108,807]],317:[[76,780]],318:[[108,780]],319:[[76,183],256],320:[[108,183],256],323:[[78,769]],324:[[110,769]],325:[[78,807]],326:[[110,807]],327:[[78,780]],328:[[110,780]],329:[[700,110],256],332:[[79,772],,{768:7760,769:7762}],333:[[111,772],,{768:7761,769:7763}],334:[[79,774]],335:[[111,774]],336:[[79,779]],337:[[111,779]],340:[[82,769]],341:[[114,769]],342:[[82,807]],343:[[114,807]],344:[[82,780]],345:[[114,780]],346:[[83,769],,{775:7780}],347:[[115,769],,{775:7781}],348:[[83,770]],349:[[115,770]],350:[[83,807]],351:[[115,807]],352:[[83,780],,{775:7782}],353:[[115,780],,{775:7783}],354:[[84,807]],355:[[116,807]],356:[[84,780]],357:[[116,780]],360:[[85,771],,{769:7800}],361:[[117,771],,{769:7801}],362:[[85,772],,{776:7802}],363:[[117,772],,{776:7803}],364:[[85,774]],365:[[117,774]],366:[[85,778]],367:[[117,778]],368:[[85,779]],369:[[117,779]],370:[[85,808]],371:[[117,808]],372:[[87,770]],373:[[119,770]],374:[[89,770]],375:[[121,770]],376:[[89,776]],377:[[90,769]],378:[[122,769]],379:[[90,775]],380:[[122,775]],381:[[90,780]],382:[[122,780]],383:[[115],256,{775:7835}],416:[[79,795],,{768:7900,769:7898,771:7904,777:7902,803:7906}],417:[[111,795],,{768:7901,769:7899,771:7905,777:7903,803:7907}],431:[[85,795],,{768:7914,769:7912,771:7918,777:7916,803:7920}],432:[[117,795],,{768:7915,769:7913,771:7919,777:7917,803:7921}],439:[,,{780:494}],452:[[68,381],256],453:[[68,382],256],454:[[100,382],256],455:[[76,74],256],456:[[76,106],256],457:[[108,106],256],458:[[78,74],256],459:[[78,106],256],460:[[110,106],256],461:[[65,780]],462:[[97,780]],463:[[73,780]],464:[[105,780]],465:[[79,780]],466:[[111,780]],467:[[85,780]],468:[[117,780]],469:[[220,772]],470:[[252,772]],471:[[220,769]],472:[[252,769]],473:[[220,780]],474:[[252,780]],475:[[220,768]],476:[[252,768]],478:[[196,772]],479:[[228,772]],480:[[550,772]],481:[[551,772]],482:[[198,772]],483:[[230,772]],486:[[71,780]],487:[[103,780]],488:[[75,780]],489:[[107,780]],490:[[79,808],,{772:492}],491:[[111,808],,{772:493}],492:[[490,772]],493:[[491,772]],494:[[439,780]],495:[[658,780]],496:[[106,780]],497:[[68,90],256],498:[[68,122],256],499:[[100,122],256],500:[[71,769]],501:[[103,769]],504:[[78,768]],505:[[110,768]],506:[[197,769]],507:[[229,769]],508:[[198,769]],509:[[230,769]],510:[[216,769]],511:[[248,769]],66045:[,220]},
+512:{512:[[65,783]],513:[[97,783]],514:[[65,785]],515:[[97,785]],516:[[69,783]],517:[[101,783]],518:[[69,785]],519:[[101,785]],520:[[73,783]],521:[[105,783]],522:[[73,785]],523:[[105,785]],524:[[79,783]],525:[[111,783]],526:[[79,785]],527:[[111,785]],528:[[82,783]],529:[[114,783]],530:[[82,785]],531:[[114,785]],532:[[85,783]],533:[[117,783]],534:[[85,785]],535:[[117,785]],536:[[83,806]],537:[[115,806]],538:[[84,806]],539:[[116,806]],542:[[72,780]],543:[[104,780]],550:[[65,775],,{772:480}],551:[[97,775],,{772:481}],552:[[69,807],,{774:7708}],553:[[101,807],,{774:7709}],554:[[214,772]],555:[[246,772]],556:[[213,772]],557:[[245,772]],558:[[79,775],,{772:560}],559:[[111,775],,{772:561}],560:[[558,772]],561:[[559,772]],562:[[89,772]],563:[[121,772]],658:[,,{780:495}],688:[[104],256],689:[[614],256],690:[[106],256],691:[[114],256],692:[[633],256],693:[[635],256],694:[[641],256],695:[[119],256],696:[[121],256],728:[[32,774],256],729:[[32,775],256],730:[[32,778],256],731:[[32,808],256],732:[[32,771],256],733:[[32,779],256],736:[[611],256],737:[[108],256],738:[[115],256],739:[[120],256],740:[[661],256],66272:[,220]},
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+
+};
+
+ /***** Module to export */
+ var unorm = {
+ nfc: nfc,
+ nfd: nfd,
+ nfkc: nfkc,
+ nfkd: nfkd
+ };
+
+ /*globals module:true,define:true*/
+
+ // CommonJS
+ if (typeof module === "object") {
+ module.exports = unorm;
+
+ // AMD
+ } else if (typeof define === "function" && define.amd) {
+ define("unorm", function () {
+ return unorm;
+ });
+
+ // Global
+ } else {
+ root.unorm = unorm;
+ }
+
+ /***** Export as shim for String::normalize method *****/
+ /*
+ http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts#november_8_2013_draft_rev_21
+
+ 21.1.3.12 String.prototype.normalize(form="NFC")
+ When the normalize method is called with one argument form, the following steps are taken:
+
+ 1. Let O be CheckObjectCoercible(this value).
+ 2. Let S be ToString(O).
+ 3. ReturnIfAbrupt(S).
+ 4. If form is not provided or undefined let form be "NFC".
+ 5. Let f be ToString(form).
+ 6. ReturnIfAbrupt(f).
+ 7. If f is not one of "NFC", "NFD", "NFKC", or "NFKD", then throw a RangeError Exception.
+ 8. Let ns be the String value is the result of normalizing S into the normalization form named by f as specified in Unicode Standard Annex #15, UnicodeNormalizatoin Forms.
+ 9. Return ns.
+
+ The length property of the normalize method is 0.
+
+ *NOTE* The normalize function is intentionally generic; it does not require that its this value be a String object. Therefore it can be transferred to other kinds of objects for use as a method.
+ */
+ unorm.shimApplied = false;
+
+ if (!String.prototype.normalize) {
+ String.prototype.normalize = function(form) {
+ var str = "" + this;
+ form = form === undefined ? "NFC" : form;
+
+ if (form === "NFC") {
+ return unorm.nfc(str);
+ } else if (form === "NFD") {
+ return unorm.nfd(str);
+ } else if (form === "NFKC") {
+ return unorm.nfkc(str);
+ } else if (form === "NFKD") {
+ return unorm.nfkd(str);
+ } else {
+ throw new RangeError("Invalid normalization form: " + form);
+ }
+ };
+
+ unorm.shimApplied = true;
+ }
+}(this));
+</script>
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+ <script>(function() {
+ 'use strict';
+
+ /**
+ * Extend an Object with another Object's properties.
+ *
+ * The source objects are specified as additional arguments.
+ *
+ * @param dst Object the object to extend.
+ *
+ * @return Object the final object.
+ */
+ var _extend = function(dst) {
+ var sources = Array.prototype.slice.call(arguments, 1);
+ for (var i=0; i<sources.length; ++i) {
+ var src = sources[i];
+ for (var p in src) {
+ if (src.hasOwnProperty(p)) dst[p] = src[p];
+ }
+ }
+ return dst;
+ };
+
+
+ /**
+ * Defer execution of given function.
+ * @param {Function} func
+ */
+ var _defer = function(func) {
+ if (typeof setImmediate === 'function') {
+ return setImmediate(func);
+ } else {
+ return setTimeout(func, 0);
+ }
+ };
+
+ /**
+ * Based on the algorithm at http://en.wikipedia.org/wiki/Levenshtein_distance.
+ */
+ var Levenshtein = {
+ /**
+ * Calculate levenshtein distance of the two strings.
+ *
+ * @param str1 String the first string.
+ * @param str2 String the second string.
+ * @return Integer the levenshtein distance (0 and above).
+ */
+ get: function(str1, str2) {
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+ if (str2.length === 0) return str1.length;
+
+ // two rows
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+ curCol, nextCol, i, j, tmp;
+
+ // initialise previous row
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+ }
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+
+ for (j=0; j<str2.length; ++j) {
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+
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+ // insertion
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+ nextCol = tmp;
+ }
+ // deletion
+ tmp = prevRow[j + 1] + 1;
+ if (nextCol > tmp) {
+ nextCol = tmp;
+ }
+
+ // copy current col value into previous (in preparation for next iteration)
+ prevRow[j] = curCol;
+ }
+
+ // copy last col value into previous (in preparation for next iteration)
+ prevRow[j] = nextCol;
+ }
+
+ return nextCol;
+ },
+
+ /**
+ * Asynchronously calculate levenshtein distance of the two strings.
+ *
+ * @param str1 String the first string.
+ * @param str2 String the second string.
+ * @param cb Function callback function with signature: function(Error err, int distance)
+ * @param [options] Object additional options.
+ * @param [options.progress] Function progress callback with signature: function(percentComplete)
+ */
+ getAsync: function(str1, str2, cb, options) {
+ options = _extend({}, {
+ progress: null
+ }, options);
+
+ // base cases
+ if (str1 === str2) return cb(null, 0);
+ if (str1.length === 0) return cb(null, str2.length);
+ if (str2.length === 0) return cb(null, str1.length);
+
+ // two rows
+ var prevRow = new Array(str2.length + 1),
+ curCol, nextCol,
+ i, j, tmp,
+ startTime, currentTime;
+
+ // initialise previous row
+ for (i=0; i<prevRow.length; ++i) {
+ prevRow[i] = i;
+ }
+
+ nextCol = 1;
+ i = 0;
+ j = -1;
+
+ var __calculate = function() {
+ // reset timer
+ startTime = new Date().valueOf();
+ currentTime = startTime;
+
+ // keep going until one second has elapsed
+ while (currentTime - startTime < 1000) {
+ // reached end of current row?
+ if (str2.length <= (++j)) {
+ // copy current into previous (in preparation for next iteration)
+ prevRow[j] = nextCol;
+
+ // if already done all chars
+ if (str1.length <= (++i)) {
+ return cb(null, nextCol);
+ }
+ // else if we have more left to do
+ else {
+ nextCol = i + 1;
+ j = 0;
+ }
+ }
+
+ // calculation
+ curCol = nextCol;
+
+ // substution
+ nextCol = prevRow[j] + ( (str1.charAt(i) === str2.charAt(j)) ? 0 : 1 );
+ // insertion
+ tmp = curCol + 1;
+ if (nextCol > tmp) {
+ nextCol = tmp;
+ }
+ // deletion
+ tmp = prevRow[j + 1] + 1;
+ if (nextCol > tmp) {
+ nextCol = tmp;
+ }
+
+ // copy current into previous (in preparation for next iteration)
+ prevRow[j] = curCol;
+
+ // get current time
+ currentTime = new Date().valueOf();
+ }
+
+ // send a progress update?
+ if (null !== options.progress) {
+ try {
+ options.progress.call(null, (i * 100.0/ str1.length));
+ } catch (err) {
+ return cb('Progress callback: ' + err.toString());
+ }
+ }
+
+ // next iteration
+ _defer(__calculate);
+ };
+
+ __calculate();
+ }
+
+ };
+
+ // amd
+ if (typeof define !== "undefined" && define !== null && define.amd) {
+ define(function() {
+ return Levenshtein;
+ });
+ }
+ // commonjs
+ else if (typeof module !== "undefined" && module !== null && typeof exports !== "undefined" && module.exports === exports) {
+ module.exports = Levenshtein;
+ }
+ // web worker
+ else if (typeof self !== "undefined" && typeof self.postMessage === 'function' && typeof self.importScripts === 'function') {
+ self.Levenshtein = Levenshtein;
+ }
+ // browser main thread
+ else if (typeof window !== "undefined" && window !== null) {
+ window.Levenshtein = Levenshtein;
+ }
+}());
+
+</script>
+ <script>(function(r){r.fn.qrcode=function(h){var s;function u(a){this.mode=s;this.data=a}function o(a,c){this.typeNumber=a;this.errorCorrectLevel=c;this.modules=null;this.moduleCount=0;this.dataCache=null;this.dataList=[]}function q(a,c){if(void 0==a.length)throw Error(a.length+"/"+c);for(var d=0;d<a.length&&0==a[d];)d++;this.num=Array(a.length-d+c);for(var b=0;b<a.length-d;b++)this.num[b]=a[b+d]}function p(a,c){this.totalCount=a;this.dataCount=c}function t(){this.buffer=[];this.length=0}u.prototype={getLength:function(){return this.data.length},
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+45,15,67,46,16],[19,148,118,6,149,119],[18,75,47,31,76,48],[34,54,24,34,55,25],[20,45,15,61,46,16]];p.getRSBlocks=function(a,c){var d=p.getRsBlockTable(a,c);if(void 0==d)throw Error("bad rs block @ typeNumber:"+a+"/errorCorrectLevel:"+c);for(var b=d.length/3,e=[],f=0;f<b;f++)for(var h=d[3*f+0],g=d[3*f+1],j=d[3*f+2],l=0;l<h;l++)e.push(new p(g,j));return e};p.getRsBlockTable=function(a,c){switch(c){case 1:return p.RS_BLOCK_TABLE[4*(a-1)+0];case 0:return p.RS_BLOCK_TABLE[4*(a-1)+1];case 3:return p.RS_BLOCK_TABLE[4*
+(a-1)+2];case 2:return p.RS_BLOCK_TABLE[4*(a-1)+3]}};t.prototype={get:function(a){return 1==(this.buffer[Math.floor(a/8)]>>>7-a%8&1)},put:function(a,c){for(var d=0;d<c;d++)this.putBit(1==(a>>>c-d-1&1))},getLengthInBits:function(){return this.length},putBit:function(a){var c=Math.floor(this.length/8);this.buffer.length<=c&&this.buffer.push(0);a&&(this.buffer[c]|=128>>>this.length%8);this.length++}};"string"===typeof h&&(h={text:h});h=r.extend({},{render:"canvas",width:256,height:256,typeNumber:-1,
+correctLevel:2,background:"#ffffff",foreground:"#000000"},h);return this.each(function(){var a;if("canvas"==h.render){a=new o(h.typeNumber,h.correctLevel);a.addData(h.text);a.make();var c=document.createElement("canvas");c.width=h.width;c.height=h.height;for(var d=c.getContext("2d"),b=h.width/a.getModuleCount(),e=h.height/a.getModuleCount(),f=0;f<a.getModuleCount();f++)for(var i=0;i<a.getModuleCount();i++){d.fillStyle=a.isDark(f,i)?h.foreground:h.background;var g=Math.ceil((i+1)*b)-Math.floor(i*b),
+j=Math.ceil((f+1)*b)-Math.floor(f*b);d.fillRect(Math.round(i*b),Math.round(f*e),g,j)}}else{a=new o(h.typeNumber,h.correctLevel);a.addData(h.text);a.make();c=r("<table></table>").css("width",h.width+"px").css("height",h.height+"px").css("border","0px").css("border-collapse","collapse").css("background-color",h.background);d=h.width/a.getModuleCount();b=h.height/a.getModuleCount();for(e=0;e<a.getModuleCount();e++){f=r("<tr></tr>").css("height",b+"px").appendTo(c);for(i=0;i<a.getModuleCount();i++)r("<td></td>").css("width",
+d+"px").css("background-color",a.isDark(e,i)?h.foreground:h.background).appendTo(f)}}a=c;$(a).appendTo(this)})}})($);
+</script>
+ <script>(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.bitcoinjs = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+(function (global){
+'use strict';
+
+// 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 <feross@feross.org> <http://feross.org>
+ * @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:
+
+// 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; };
+
+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 : {})
+},{"util/":32}],2:[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
+}
+
+revLookup['-'.charCodeAt(0)] = 62
+revLookup['_'.charCodeAt(0)] = 63
+
+function placeHoldersCount (b64) {
+ var len = b64.length
+ if (len % 4 > 0) {
+ throw new Error('Invalid string. Length must be a multiple of 4')
+ }
+
+ // the number of equal signs (place holders)
+ // if there are two placeholders, than the two characters before it
+ // represent one byte
+ // if there is only one, then the three characters before it represent 2 bytes
+ // this is just a cheap hack to not do indexOf twice
+ return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
+}
+
+function byteLength (b64) {
+ // base64 is 4/3 + up to two characters of the original data
+ return (b64.length * 3 / 4) - placeHoldersCount(b64)
+}
+
+function toByteArray (b64) {
+ var i, l, tmp, placeHolders, arr
+ var len = b64.length
+ placeHolders = placeHoldersCount(b64)
+
+ arr = new Arr((len * 3 / 4) - placeHolders)
+
+ // if there are placeholders, only get up to the last complete 4 chars
+ l = placeHolders > 0 ? len - 4 : len
+
+ var L = 0
+
+ for (i = 0; i < l; 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[L++] = (tmp >> 16) & 0xFF
+ arr[L++] = (tmp >> 8) & 0xFF
+ arr[L++] = tmp & 0xFF
+ }
+
+ if (placeHolders === 2) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
+ arr[L++] = tmp & 0xFF
+ } else if (placeHolders === 1) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
+ arr[L++] = (tmp >> 8) & 0xFF
+ arr[L++] = 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) + (uint8[i + 1] << 8) + (uint8[i + 2])
+ 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 output = ''
+ 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]
+ output += lookup[tmp >> 2]
+ output += lookup[(tmp << 4) & 0x3F]
+ output += '=='
+ } else if (extraBytes === 2) {
+ tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
+ output += lookup[tmp >> 10]
+ output += lookup[(tmp >> 4) & 0x3F]
+ output += lookup[(tmp << 2) & 0x3F]
+ output += '='
+ }
+
+ parts.push(output)
+
+ return parts.join('')
+}
+
+},{}],3:[function(require,module,exports){
+
+},{}],4:[function(require,module,exports){
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license MIT
+ */
+/* eslint-disable no-proto */
+
+'use strict'
+
+var base64 = require('base64-js')
+var ieee754 = require('ieee754')
+
+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)
+ arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
+ return arr.foo() === 42
+ } catch (e) {
+ return false
+ }
+}
+
+function createBuffer (length) {
+ if (length > K_MAX_LENGTH) {
+ throw new RangeError('Invalid typed array length')
+ }
+ // Return an augmented `Uint8Array` instance
+ var buf = new Uint8Array(length)
+ buf.__proto__ = 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 Error(
+ 'If encoding is specified then the first argument must be a string'
+ )
+ }
+ 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 &&
+ 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 === 'number') {
+ throw new TypeError('"value" argument must not be a number')
+ }
+
+ if (value instanceof ArrayBuffer) {
+ return fromArrayBuffer(value, encodingOrOffset, length)
+ }
+
+ if (typeof value === 'string') {
+ return fromString(value, encodingOrOffset)
+ }
+
+ return fromObject(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
+Buffer.prototype.__proto__ = Uint8Array.prototype
+Buffer.__proto__ = Uint8Array
+
+function assertSize (size) {
+ if (typeof size !== 'number') {
+ throw new TypeError('"size" argument must be a number')
+ } else if (size < 0) {
+ throw new RangeError('"size" argument must not be negative')
+ }
+}
+
+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('"encoding" must be a valid string 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 out of bounds')
+ }
+
+ if (array.byteLength < byteOffset + (length || 0)) {
+ throw new RangeError('\'length\' is out of 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
+ buf.__proto__ = 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) {
+ if (isArrayBufferView(obj) || 'length' in obj) {
+ 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)
+ }
+ }
+
+ throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
+}
+
+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
+}
+
+Buffer.compare = function compare (a, b) {
+ if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
+ throw new TypeError('Arguments must be Buffers')
+ }
+
+ 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':
}
}
-Buffer.concat = function concat (list, length) {
- if (!isArray(list)) throw new TypeError('list argument must be an Array of Buffers.')
+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 (!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 (isArrayBufferView(string) || string instanceof ArrayBuffer) {
+ return string.byteLength
+ }
+ if (typeof string !== 'string') {
+ string = '' + string
+ }
+
+ var len = string.length
+ if (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':
+ case undefined:
+ 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 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.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
+ if (this.length > 0) {
+ str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
+ if (this.length > max) str += ' ... '
+ }
+ return '<Buffer ' + str + '>'
+}
+
+Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
+ if (!Buffer.isBuffer(target)) {
+ throw new TypeError('Argument must be a Buffer')
+ }
+
+ 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
+ }
+ }
+
+ // must be an even number of digits
+ var strLen = string.length
+ if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
+
+ 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 += toHex(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
+ newBuf.__proto__ = 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 (!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('sourceStart out of bounds')
+ 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
+ var i
+
+ if (this === target && start < targetStart && targetStart < end) {
+ // descending copy from end
+ for (i = len - 1; i >= 0; --i) {
+ target[i + targetStart] = this[i + start]
+ }
+ } else if (len < 1000) {
+ // ascending copy from start
+ for (i = 0; i < len; ++i) {
+ target[i + targetStart] = this[i + start]
+ }
+ } else {
+ Uint8Array.prototype.set.call(
+ target,
+ this.subarray(start, start + len),
+ 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 (val.length === 1) {
+ var code = val.charCodeAt(0)
+ if (code < 256) {
+ val = code
+ }
+ }
+ 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)
+ }
+ } else if (typeof val === 'number') {
+ val = val & 255
+ }
+
+ // 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
+ : new Buffer(val, encoding)
+ var len = bytes.length
+ 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 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 toHex (n) {
+ if (n < 16) return '0' + n.toString(16)
+ return n.toString(16)
+}
+
+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
+}
+
+// Node 0.10 supports `ArrayBuffer` but lacks `ArrayBuffer.isView`
+function isArrayBufferView (obj) {
+ return (typeof ArrayBuffer.isView === 'function') && ArrayBuffer.isView(obj)
+}
+
+function numberIsNaN (obj) {
+ return obj !== obj // eslint-disable-line no-self-compare
+}
+
+},{"base64-js":2,"ieee754":7}],5:[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("../../is-buffer/index.js")})
+},{"../../is-buffer/index.js":9}],6:[function(require,module,exports){
+// 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.
+
+function EventEmitter() {
+ this._events = this._events || {};
+ this._maxListeners = this._maxListeners || undefined;
+}
+module.exports = EventEmitter;
+
+// Backwards-compat with node 0.10.x
+EventEmitter.EventEmitter = EventEmitter;
+
+EventEmitter.prototype._events = undefined;
+EventEmitter.prototype._maxListeners = undefined;
+
+// By default EventEmitters will print a warning if more than 10 listeners are
+// added to it. This is a useful default which helps finding memory leaks.
+EventEmitter.defaultMaxListeners = 10;
+
+// Obviously not all Emitters should be limited to 10. This function allows
+// that to be increased. Set to zero for unlimited.
+EventEmitter.prototype.setMaxListeners = function(n) {
+ if (!isNumber(n) || n < 0 || isNaN(n))
+ throw TypeError('n must be a positive number');
+ this._maxListeners = n;
+ return this;
+};
+
+EventEmitter.prototype.emit = function(type) {
+ var er, handler, len, args, i, listeners;
+
+ if (!this._events)
+ this._events = {};
+
+ // If there is no 'error' event listener then throw.
+ if (type === 'error') {
+ if (!this._events.error ||
+ (isObject(this._events.error) && !this._events.error.length)) {
+ er = arguments[1];
+ if (er instanceof Error) {
+ throw er; // Unhandled 'error' event
+ } else {
+ // At least give some kind of context to the user
+ var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
+ err.context = er;
+ throw err;
+ }
+ }
+ }
+
+ handler = this._events[type];
+
+ if (isUndefined(handler))
+ return false;
+
+ if (isFunction(handler)) {
+ switch (arguments.length) {
+ // fast cases
+ case 1:
+ handler.call(this);
+ break;
+ case 2:
+ handler.call(this, arguments[1]);
+ break;
+ case 3:
+ handler.call(this, arguments[1], arguments[2]);
+ break;
+ // slower
+ default:
+ args = Array.prototype.slice.call(arguments, 1);
+ handler.apply(this, args);
+ }
+ } else if (isObject(handler)) {
+ args = Array.prototype.slice.call(arguments, 1);
+ listeners = handler.slice();
+ len = listeners.length;
+ for (i = 0; i < len; i++)
+ listeners[i].apply(this, args);
+ }
+
+ return true;
+};
+
+EventEmitter.prototype.addListener = function(type, listener) {
+ var m;
+
+ if (!isFunction(listener))
+ throw TypeError('listener must be a function');
+
+ if (!this._events)
+ this._events = {};
+
+ // To avoid recursion in the case that type === "newListener"! Before
+ // adding it to the listeners, first emit "newListener".
+ if (this._events.newListener)
+ this.emit('newListener', type,
+ isFunction(listener.listener) ?
+ listener.listener : listener);
+
+ if (!this._events[type])
+ // Optimize the case of one listener. Don't need the extra array object.
+ this._events[type] = listener;
+ else if (isObject(this._events[type]))
+ // If we've already got an array, just append.
+ this._events[type].push(listener);
+ else
+ // Adding the second element, need to change to array.
+ this._events[type] = [this._events[type], listener];
+
+ // Check for listener leak
+ if (isObject(this._events[type]) && !this._events[type].warned) {
+ if (!isUndefined(this._maxListeners)) {
+ m = this._maxListeners;
+ } else {
+ m = EventEmitter.defaultMaxListeners;
+ }
+
+ if (m && m > 0 && this._events[type].length > m) {
+ this._events[type].warned = true;
+ console.error('(node) warning: possible EventEmitter memory ' +
+ 'leak detected. %d listeners added. ' +
+ 'Use emitter.setMaxListeners() to increase limit.',
+ this._events[type].length);
+ if (typeof console.trace === 'function') {
+ // not supported in IE 10
+ console.trace();
+ }
+ }
+ }
+
+ return this;
+};
+
+EventEmitter.prototype.on = EventEmitter.prototype.addListener;
+
+EventEmitter.prototype.once = function(type, listener) {
+ if (!isFunction(listener))
+ throw TypeError('listener must be a function');
+
+ var fired = false;
+
+ function g() {
+ this.removeListener(type, g);
+
+ if (!fired) {
+ fired = true;
+ listener.apply(this, arguments);
+ }
+ }
+
+ g.listener = listener;
+ this.on(type, g);
+
+ return this;
+};
+
+// emits a 'removeListener' event iff the listener was removed
+EventEmitter.prototype.removeListener = function(type, listener) {
+ var list, position, length, i;
+
+ if (!isFunction(listener))
+ throw TypeError('listener must be a function');
+
+ if (!this._events || !this._events[type])
+ return this;
+
+ list = this._events[type];
+ length = list.length;
+ position = -1;
+
+ if (list === listener ||
+ (isFunction(list.listener) && list.listener === listener)) {
+ delete this._events[type];
+ if (this._events.removeListener)
+ this.emit('removeListener', type, listener);
+
+ } else if (isObject(list)) {
+ for (i = length; i-- > 0;) {
+ if (list[i] === listener ||
+ (list[i].listener && list[i].listener === listener)) {
+ position = i;
+ break;
+ }
+ }
+
+ if (position < 0)
+ return this;
+
+ if (list.length === 1) {
+ list.length = 0;
+ delete this._events[type];
+ } else {
+ list.splice(position, 1);
+ }
+
+ if (this._events.removeListener)
+ this.emit('removeListener', type, listener);
+ }
+
+ return this;
+};
+
+EventEmitter.prototype.removeAllListeners = function(type) {
+ var key, listeners;
+
+ if (!this._events)
+ return this;
+
+ // not listening for removeListener, no need to emit
+ if (!this._events.removeListener) {
+ if (arguments.length === 0)
+ this._events = {};
+ else if (this._events[type])
+ delete this._events[type];
+ return this;
+ }
+
+ // emit removeListener for all listeners on all events
+ if (arguments.length === 0) {
+ for (key in this._events) {
+ if (key === 'removeListener') continue;
+ this.removeAllListeners(key);
+ }
+ this.removeAllListeners('removeListener');
+ this._events = {};
+ return this;
+ }
+
+ listeners = this._events[type];
+
+ if (isFunction(listeners)) {
+ this.removeListener(type, listeners);
+ } else if (listeners) {
+ // LIFO order
+ while (listeners.length)
+ this.removeListener(type, listeners[listeners.length - 1]);
+ }
+ delete this._events[type];
+
+ return this;
+};
+
+EventEmitter.prototype.listeners = function(type) {
+ var ret;
+ if (!this._events || !this._events[type])
+ ret = [];
+ else if (isFunction(this._events[type]))
+ ret = [this._events[type]];
+ else
+ ret = this._events[type].slice();
+ return ret;
+};
+
+EventEmitter.prototype.listenerCount = function(type) {
+ if (this._events) {
+ var evlistener = this._events[type];
+
+ if (isFunction(evlistener))
+ return 1;
+ else if (evlistener)
+ return evlistener.length;
+ }
+ return 0;
+};
+
+EventEmitter.listenerCount = function(emitter, type) {
+ return emitter.listenerCount(type);
+};
+
+function isFunction(arg) {
+ return typeof arg === 'function';
+}
+
+function isNumber(arg) {
+ return typeof arg === 'number';
+}
+
+function isObject(arg) {
+ return typeof arg === 'object' && arg !== null;
+}
+
+function isUndefined(arg) {
+ return arg === void 0;
+}
+
+},{}],7:[function(require,module,exports){
+exports.read = function (buffer, offset, isLE, mLen, nBytes) {
+ var e, m
+ var eLen = nBytes * 8 - mLen - 1
+ var eMax = (1 << eLen) - 1
+ var eBias = eMax >> 1
+ var nBits = -7
+ var i = isLE ? (nBytes - 1) : 0
+ var d = isLE ? -1 : 1
+ var s = buffer[offset + i]
+
+ i += d
+
+ e = s & ((1 << (-nBits)) - 1)
+ s >>= (-nBits)
+ nBits += eLen
+ for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+ m = e & ((1 << (-nBits)) - 1)
+ e >>= (-nBits)
+ nBits += mLen
+ for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+ if (e === 0) {
+ e = 1 - eBias
+ } else if (e === eMax) {
+ return m ? NaN : ((s ? -1 : 1) * Infinity)
+ } else {
+ m = m + Math.pow(2, mLen)
+ e = e - eBias
+ }
+ return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
+}
+
+exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
+ var e, m, c
+ var eLen = nBytes * 8 - mLen - 1
+ var eMax = (1 << eLen) - 1
+ var eBias = eMax >> 1
+ var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
+ var i = isLE ? 0 : (nBytes - 1)
+ var d = isLE ? 1 : -1
+ var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
+
+ value = Math.abs(value)
+
+ if (isNaN(value) || value === Infinity) {
+ m = isNaN(value) ? 1 : 0
+ e = eMax
+ } else {
+ e = Math.floor(Math.log(value) / Math.LN2)
+ if (value * (c = Math.pow(2, -e)) < 1) {
+ e--
+ c *= 2
+ }
+ if (e + eBias >= 1) {
+ value += rt / c
+ } else {
+ value += rt * Math.pow(2, 1 - eBias)
+ }
+ if (value * c >= 2) {
+ e++
+ c /= 2
+ }
+
+ if (e + eBias >= eMax) {
+ m = 0
+ e = eMax
+ } else if (e + eBias >= 1) {
+ m = (value * c - 1) * Math.pow(2, mLen)
+ e = e + eBias
+ } else {
+ m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
+ e = 0
+ }
+ }
+
+ for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
+
+ e = (e << mLen) | m
+ eLen += mLen
+ for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+
+ buffer[offset + i - d] |= s * 128
+}
+
+},{}],8:[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
+ }
+}
+
+},{}],9:[function(require,module,exports){
+/*!
+ * Determine if an object is a Buffer
+ *
+ * @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license MIT
+ */
- if (list.length === 0) {
- return new Buffer(0)
- }
+// The _isBuffer check is for Safari 5-7 support, because it's missing
+// Object.prototype.constructor. Remove this eventually
+module.exports = function (obj) {
+ return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
+}
- var i
- if (length === undefined) {
- length = 0
- for (i = 0; i < list.length; i++) {
- length += list[i].length
- }
- }
+function isBuffer (obj) {
+ return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
+}
- var buf = new Buffer(length)
- var pos = 0
- for (i = 0; i < list.length; i++) {
- var item = list[i]
- item.copy(buf, pos)
- pos += item.length
- }
- return buf
+// For Node v0.10 support. Remove this eventually.
+function isSlowBuffer (obj) {
+ return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
}
-function byteLength (string, encoding) {
- if (typeof string !== 'string') string = '' + string
+},{}],10:[function(require,module,exports){
+var toString = {}.toString;
- var len = string.length
- if (len === 0) return 0
+module.exports = Array.isArray || function (arr) {
+ return toString.call(arr) == '[object Array]';
+};
- // Use a for loop to avoid recursion
- var loweredCase = false
- for (;;) {
- switch (encoding) {
- case 'ascii':
- case 'binary':
- // Deprecated
- case 'raw':
- case 'raws':
- 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 utf8ToBytes(string).length // assume utf8
- encoding = ('' + encoding).toLowerCase()
- loweredCase = true
+},{}],11:[function(require,module,exports){
+(function (process){
+'use strict';
+
+if (!process.version ||
+ process.version.indexOf('v0.') === 0 ||
+ process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
+ module.exports = nextTick;
+} else {
+ module.exports = process.nextTick;
+}
+
+function nextTick(fn, arg1, arg2, arg3) {
+ if (typeof fn !== 'function') {
+ throw new TypeError('"callback" argument must be a function');
+ }
+ var len = arguments.length;
+ var args, i;
+ switch (len) {
+ case 0:
+ case 1:
+ return process.nextTick(fn);
+ case 2:
+ return process.nextTick(function afterTickOne() {
+ fn.call(null, arg1);
+ });
+ case 3:
+ return process.nextTick(function afterTickTwo() {
+ fn.call(null, arg1, arg2);
+ });
+ case 4:
+ return process.nextTick(function afterTickThree() {
+ fn.call(null, arg1, arg2, arg3);
+ });
+ default:
+ args = new Array(len - 1);
+ i = 0;
+ while (i < args.length) {
+ args[i++] = arguments[i];
}
+ return process.nextTick(function afterTick() {
+ fn.apply(null, args);
+ });
}
}
-Buffer.byteLength = byteLength
-
-// pre-set for values that may exist in the future
-Buffer.prototype.length = undefined
-Buffer.prototype.parent = undefined
-function slowToString (encoding, start, end) {
- var loweredCase = false
+}).call(this,require('_process'))
+},{"_process":12}],12:[function(require,module,exports){
+// shim for using process in browser
+var process = module.exports = {};
- start = start | 0
- end = end === undefined || end === Infinity ? this.length : end | 0
+// cached from whatever global is present so that test runners that stub it
+// don't break things. But we need to wrap it in a try catch in case it is
+// wrapped in strict mode code which doesn't define any globals. It's inside a
+// function because try/catches deoptimize in certain engines.
- if (!encoding) encoding = 'utf8'
- if (start < 0) start = 0
- if (end > this.length) end = this.length
- if (end <= start) return ''
+var cachedSetTimeout;
+var cachedClearTimeout;
- while (true) {
- switch (encoding) {
- case 'hex':
- return hexSlice(this, start, end)
+function defaultSetTimout() {
+ throw new Error('setTimeout has not been defined');
+}
+function defaultClearTimeout () {
+ throw new Error('clearTimeout has not been defined');
+}
+(function () {
+ try {
+ if (typeof setTimeout === 'function') {
+ cachedSetTimeout = setTimeout;
+ } else {
+ cachedSetTimeout = defaultSetTimout;
+ }
+ } catch (e) {
+ cachedSetTimeout = defaultSetTimout;
+ }
+ try {
+ if (typeof clearTimeout === 'function') {
+ cachedClearTimeout = clearTimeout;
+ } else {
+ cachedClearTimeout = defaultClearTimeout;
+ }
+ } catch (e) {
+ cachedClearTimeout = defaultClearTimeout;
+ }
+} ())
+function runTimeout(fun) {
+ if (cachedSetTimeout === setTimeout) {
+ //normal enviroments in sane situations
+ return setTimeout(fun, 0);
+ }
+ // if setTimeout wasn't available but was latter defined
+ if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
+ cachedSetTimeout = setTimeout;
+ return setTimeout(fun, 0);
+ }
+ try {
+ // when when somebody has screwed with setTimeout but no I.E. maddness
+ return cachedSetTimeout(fun, 0);
+ } catch(e){
+ try {
+ // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+ return cachedSetTimeout.call(null, fun, 0);
+ } catch(e){
+ // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
+ return cachedSetTimeout.call(this, fun, 0);
+ }
+ }
- case 'utf8':
- case 'utf-8':
- return utf8Slice(this, start, end)
- case 'ascii':
- return asciiSlice(this, start, end)
+}
+function runClearTimeout(marker) {
+ if (cachedClearTimeout === clearTimeout) {
+ //normal enviroments in sane situations
+ return clearTimeout(marker);
+ }
+ // if clearTimeout wasn't available but was latter defined
+ if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
+ cachedClearTimeout = clearTimeout;
+ return clearTimeout(marker);
+ }
+ try {
+ // when when somebody has screwed with setTimeout but no I.E. maddness
+ return cachedClearTimeout(marker);
+ } catch (e){
+ try {
+ // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+ return cachedClearTimeout.call(null, marker);
+ } catch (e){
+ // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
+ // Some versions of I.E. have different rules for clearTimeout vs setTimeout
+ return cachedClearTimeout.call(this, marker);
+ }
+ }
- case 'binary':
- return binarySlice(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)
+}
+var queue = [];
+var draining = false;
+var currentQueue;
+var queueIndex = -1;
- default:
- if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
- encoding = (encoding + '').toLowerCase()
- loweredCase = true
+function cleanUpNextTick() {
+ if (!draining || !currentQueue) {
+ return;
+ }
+ draining = false;
+ if (currentQueue.length) {
+ queue = currentQueue.concat(queue);
+ } else {
+ queueIndex = -1;
+ }
+ if (queue.length) {
+ drainQueue();
}
- }
}
-Buffer.prototype.toString = function toString () {
- var length = this.length | 0
- if (length === 0) return ''
- if (arguments.length === 0) return utf8Slice(this, 0, length)
- return slowToString.apply(this, arguments)
+function drainQueue() {
+ if (draining) {
+ return;
+ }
+ var timeout = runTimeout(cleanUpNextTick);
+ draining = true;
+
+ var len = queue.length;
+ while(len) {
+ currentQueue = queue;
+ queue = [];
+ while (++queueIndex < len) {
+ if (currentQueue) {
+ currentQueue[queueIndex].run();
+ }
+ }
+ queueIndex = -1;
+ len = queue.length;
+ }
+ currentQueue = null;
+ draining = false;
+ runClearTimeout(timeout);
}
-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
+process.nextTick = function (fun) {
+ var args = new Array(arguments.length - 1);
+ if (arguments.length > 1) {
+ for (var i = 1; i < arguments.length; i++) {
+ args[i - 1] = arguments[i];
+ }
+ }
+ queue.push(new Item(fun, args));
+ if (queue.length === 1 && !draining) {
+ runTimeout(drainQueue);
+ }
+};
+
+// v8 likes predictible objects
+function Item(fun, array) {
+ this.fun = fun;
+ this.array = array;
}
+Item.prototype.run = function () {
+ this.fun.apply(null, this.array);
+};
+process.title = 'browser';
+process.browser = true;
+process.env = {};
+process.argv = [];
+process.version = ''; // empty string to avoid regexp issues
+process.versions = {};
-Buffer.prototype.inspect = function inspect () {
- var str = ''
- var max = exports.INSPECT_MAX_BYTES
- if (this.length > 0) {
- str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
- if (this.length > max) str += ' ... '
- }
- return '<Buffer ' + str + '>'
+function noop() {}
+
+process.on = noop;
+process.addListener = noop;
+process.once = noop;
+process.off = noop;
+process.removeListener = noop;
+process.removeAllListeners = noop;
+process.emit = noop;
+process.prependListener = noop;
+process.prependOnceListener = noop;
+
+process.listeners = function (name) { return [] }
+
+process.binding = function (name) {
+ throw new Error('process.binding is not supported');
+};
+
+process.cwd = function () { return '/' };
+process.chdir = function (dir) {
+ throw new Error('process.chdir is not supported');
+};
+process.umask = function() { return 0; };
+
+},{}],13:[function(require,module,exports){
+module.exports = require('./lib/_stream_duplex.js');
+
+},{"./lib/_stream_duplex.js":14}],14:[function(require,module,exports){
+// 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.
+
+// a duplex stream is just a stream that is both readable and writable.
+// Since JS doesn't have multiple prototypal inheritance, this class
+// prototypally inherits from Readable, and then parasitically from
+// Writable.
+
+'use strict';
+
+/*<replacement>*/
+
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
+
+/*<replacement>*/
+var objectKeys = Object.keys || function (obj) {
+ var keys = [];
+ for (var key in obj) {
+ keys.push(key);
+ }return keys;
+};
+/*</replacement>*/
+
+module.exports = Duplex;
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+var Readable = require('./_stream_readable');
+var Writable = require('./_stream_writable');
+
+util.inherits(Duplex, Readable);
+
+var keys = objectKeys(Writable.prototype);
+for (var v = 0; v < keys.length; v++) {
+ var method = keys[v];
+ if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
}
-Buffer.prototype.compare = function compare (b) {
- if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
- if (this === b) return 0
- return Buffer.compare(this, b)
+function Duplex(options) {
+ if (!(this instanceof Duplex)) return new Duplex(options);
+
+ Readable.call(this, options);
+ Writable.call(this, options);
+
+ if (options && options.readable === false) this.readable = false;
+
+ if (options && options.writable === false) this.writable = false;
+
+ this.allowHalfOpen = true;
+ if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
+
+ this.once('end', onend);
}
-Buffer.prototype.indexOf = function indexOf (val, byteOffset) {
- if (byteOffset > 0x7fffffff) byteOffset = 0x7fffffff
- else if (byteOffset < -0x80000000) byteOffset = -0x80000000
- byteOffset >>= 0
+// the no-half-open enforcer
+function onend() {
+ // if we allow half-open state, or if the writable side ended,
+ // then we're ok.
+ if (this.allowHalfOpen || this._writableState.ended) return;
- if (this.length === 0) return -1
- if (byteOffset >= this.length) return -1
+ // no more data can be written.
+ // But allow more writes to happen in this tick.
+ processNextTick(onEndNT, this);
+}
- // Negative offsets start from the end of the buffer
- if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0)
+function onEndNT(self) {
+ self.end();
+}
- if (typeof val === 'string') {
- if (val.length === 0) return -1 // special case: looking for empty string always fails
- return String.prototype.indexOf.call(this, val, byteOffset)
- }
- if (Buffer.isBuffer(val)) {
- return arrayIndexOf(this, val, byteOffset)
- }
- if (typeof val === 'number') {
- if (Buffer.TYPED_ARRAY_SUPPORT && Uint8Array.prototype.indexOf === 'function') {
- return Uint8Array.prototype.indexOf.call(this, val, byteOffset)
+Object.defineProperty(Duplex.prototype, 'destroyed', {
+ get: function () {
+ if (this._readableState === undefined || this._writableState === undefined) {
+ return false;
+ }
+ return this._readableState.destroyed && this._writableState.destroyed;
+ },
+ set: function (value) {
+ // we ignore the value if the stream
+ // has not been initialized yet
+ if (this._readableState === undefined || this._writableState === undefined) {
+ return;
}
- return arrayIndexOf(this, [ val ], byteOffset)
+
+ // backward compatibility, the user is explicitly
+ // managing destroyed
+ this._readableState.destroyed = value;
+ this._writableState.destroyed = value;
}
+});
- function arrayIndexOf (arr, val, byteOffset) {
- var foundIndex = -1
- for (var i = 0; byteOffset + i < arr.length; i++) {
- if (arr[byteOffset + i] === val[foundIndex === -1 ? 0 : i - foundIndex]) {
- if (foundIndex === -1) foundIndex = i
- if (i - foundIndex + 1 === val.length) return byteOffset + foundIndex
- } else {
- foundIndex = -1
- }
- }
- return -1
+Duplex.prototype._destroy = function (err, cb) {
+ this.push(null);
+ this.end();
+
+ processNextTick(cb, err);
+};
+
+function forEach(xs, f) {
+ for (var i = 0, l = xs.length; i < l; i++) {
+ f(xs[i], i);
}
+}
+},{"./_stream_readable":16,"./_stream_writable":18,"core-util-is":5,"inherits":8,"process-nextick-args":11}],15:[function(require,module,exports){
+// 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.
+
+// a passthrough stream.
+// basically just the most minimal sort of Transform stream.
+// Every written chunk gets output as-is.
+
+'use strict';
+
+module.exports = PassThrough;
+
+var Transform = require('./_stream_transform');
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+util.inherits(PassThrough, Transform);
+
+function PassThrough(options) {
+ if (!(this instanceof PassThrough)) return new PassThrough(options);
+
+ Transform.call(this, options);
+}
+
+PassThrough.prototype._transform = function (chunk, encoding, cb) {
+ cb(null, chunk);
+};
+},{"./_stream_transform":17,"core-util-is":5,"inherits":8}],16:[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.
+
+'use strict';
+
+/*<replacement>*/
+
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
- throw new TypeError('val must be string, number or Buffer')
-}
+module.exports = Readable;
-// `get` is deprecated
-Buffer.prototype.get = function get (offset) {
- console.log('.get() is deprecated. Access using array indexes instead.')
- return this.readUInt8(offset)
-}
+/*<replacement>*/
+var isArray = require('isarray');
+/*</replacement>*/
-// `set` is deprecated
-Buffer.prototype.set = function set (v, offset) {
- console.log('.set() is deprecated. Access using array indexes instead.')
- return this.writeUInt8(v, offset)
-}
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
-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
- }
- }
+Readable.ReadableState = ReadableState;
- // must be an even number of digits
- var strLen = string.length
- if (strLen % 2 !== 0) throw new Error('Invalid hex string')
+/*<replacement>*/
+var EE = require('events').EventEmitter;
- if (length > strLen / 2) {
- length = strLen / 2
- }
- for (var i = 0; i < length; i++) {
- var parsed = parseInt(string.substr(i * 2, 2), 16)
- if (isNaN(parsed)) throw new Error('Invalid hex string')
- buf[offset + i] = parsed
- }
- return i
-}
+var EElistenerCount = function (emitter, type) {
+ return emitter.listeners(type).length;
+};
+/*</replacement>*/
-function utf8Write (buf, string, offset, length) {
- return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
-}
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
-function asciiWrite (buf, string, offset, length) {
- return blitBuffer(asciiToBytes(string), buf, offset, length)
+// TODO(bmeurer): Change this back to const once hole checks are
+// properly optimized away early in Ignition+TurboFan.
+/*<replacement>*/
+var Buffer = require('safe-buffer').Buffer;
+var OurUint8Array = global.Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+ return Buffer.from(chunk);
}
-
-function binaryWrite (buf, string, offset, length) {
- return asciiWrite(buf, string, offset, length)
+function _isUint8Array(obj) {
+ return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}
+/*</replacement>*/
-function base64Write (buf, string, offset, length) {
- return blitBuffer(base64ToBytes(string), buf, offset, length)
-}
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
-function ucs2Write (buf, string, offset, length) {
- return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
+/*<replacement>*/
+var debugUtil = require('util');
+var debug = void 0;
+if (debugUtil && debugUtil.debuglog) {
+ debug = debugUtil.debuglog('stream');
+} else {
+ debug = function () {};
}
+/*</replacement>*/
-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
- }
- // legacy write(string, encoding, offset, length) - remove in v0.13
+var BufferList = require('./internal/streams/BufferList');
+var destroyImpl = require('./internal/streams/destroy');
+var StringDecoder;
+
+util.inherits(Readable, Stream);
+
+var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
+
+function prependListener(emitter, event, fn) {
+ // Sadly this is not cacheable as some libraries bundle their own
+ // event emitter implementation with them.
+ if (typeof emitter.prependListener === 'function') {
+ return emitter.prependListener(event, fn);
} else {
- var swap = encoding
- encoding = offset
- offset = length | 0
- length = swap
+ // This is a hack to make sure that our error handler is attached before any
+ // userland ones. NEVER DO THIS. This is here only because this code needs
+ // to continue to work with older versions of Node.js that do not include
+ // the prependListener() method. The goal is to eventually remove this hack.
+ if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
}
+}
- var remaining = this.length - offset
- if (length === undefined || length > remaining) length = remaining
+function ReadableState(options, stream) {
+ Duplex = Duplex || require('./_stream_duplex');
- if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
- throw new RangeError('attempt to write outside buffer bounds')
- }
+ options = options || {};
- if (!encoding) encoding = 'utf8'
+ // object stream flag. Used to make read(n) ignore n and to
+ // make all the buffer merging and length checks go away
+ this.objectMode = !!options.objectMode;
- var loweredCase = false
- for (;;) {
- switch (encoding) {
- case 'hex':
- return hexWrite(this, string, offset, length)
+ if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
- case 'utf8':
- case 'utf-8':
- return utf8Write(this, string, offset, length)
+ // the point at which it stops calling _read() to fill the buffer
+ // Note: 0 is a valid value, means "don't call _read preemptively ever"
+ var hwm = options.highWaterMark;
+ var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+ this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
- case 'ascii':
- return asciiWrite(this, string, offset, length)
+ // cast to ints.
+ this.highWaterMark = Math.floor(this.highWaterMark);
- case 'binary':
- return binaryWrite(this, string, offset, length)
+ // A linked list is used to store data chunks instead of an array because the
+ // linked list can remove elements from the beginning faster than
+ // array.shift()
+ this.buffer = new BufferList();
+ this.length = 0;
+ this.pipes = null;
+ this.pipesCount = 0;
+ this.flowing = null;
+ this.ended = false;
+ this.endEmitted = false;
+ this.reading = false;
- case 'base64':
- // Warning: maxLength not taken into account in base64Write
- return base64Write(this, string, offset, length)
+ // a flag to be able to tell if the event 'readable'/'data' is emitted
+ // immediately, or on a later tick. We set this to true at first, because
+ // any actions that shouldn't happen until "later" should generally also
+ // not happen before the first read call.
+ this.sync = true;
- case 'ucs2':
- case 'ucs-2':
- case 'utf16le':
- case 'utf-16le':
- return ucs2Write(this, string, offset, length)
+ // whenever we return null, then we set a flag to say
+ // that we're awaiting a 'readable' event emission.
+ this.needReadable = false;
+ this.emittedReadable = false;
+ this.readableListening = false;
+ this.resumeScheduled = false;
- default:
- if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
- encoding = ('' + encoding).toLowerCase()
- loweredCase = true
- }
- }
-}
+ // has it been destroyed
+ this.destroyed = false;
-Buffer.prototype.toJSON = function toJSON () {
- return {
- type: 'Buffer',
- data: Array.prototype.slice.call(this._arr || this, 0)
- }
-}
+ // Crypto is kind of old and crusty. Historically, its default string
+ // encoding is 'binary' so we have to make this configurable.
+ // Everything else in the universe uses 'utf8', though.
+ this.defaultEncoding = options.defaultEncoding || 'utf8';
-function base64Slice (buf, start, end) {
- if (start === 0 && end === buf.length) {
- return base64.fromByteArray(buf)
- } else {
- return base64.fromByteArray(buf.slice(start, end))
+ // the number of writers that are awaiting a drain event in .pipe()s
+ this.awaitDrain = 0;
+
+ // if true, a maybeReadMore has been scheduled
+ this.readingMore = false;
+
+ this.decoder = null;
+ this.encoding = null;
+ if (options.encoding) {
+ if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+ this.decoder = new StringDecoder(options.encoding);
+ this.encoding = options.encoding;
}
}
-function utf8Slice (buf, start, end) {
- end = Math.min(buf.length, end)
- var firstByte
- var secondByte
- var thirdByte
- var fourthByte
- var bytesPerSequence
- var tempCodePoint
- var codePoint
- var res = []
- var i = start
+function Readable(options) {
+ Duplex = Duplex || require('./_stream_duplex');
- for (; i < end; i += bytesPerSequence) {
- firstByte = buf[i]
- codePoint = 0xFFFD
+ if (!(this instanceof Readable)) return new Readable(options);
- if (firstByte > 0xEF) {
- bytesPerSequence = 4
- } else if (firstByte > 0xDF) {
- bytesPerSequence = 3
- } else if (firstByte > 0xBF) {
- bytesPerSequence = 2
- } else {
- bytesPerSequence = 1
- }
+ this._readableState = new ReadableState(options, this);
- if (i + bytesPerSequence <= end) {
- 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
- }
- }
- }
- }
+ // legacy
+ this.readable = true;
- if (codePoint === 0xFFFD) {
- // we generated an invalid codePoint so make sure to only advance by 1 byte
- bytesPerSequence = 1
- } else if (codePoint > 0xFFFF) {
- // encode to utf16 (surrogate pair dance)
- codePoint -= 0x10000
- res.push(codePoint >>> 10 & 0x3FF | 0xD800)
- codePoint = 0xDC00 | codePoint & 0x3FF
- }
+ if (options) {
+ if (typeof options.read === 'function') this._read = options.read;
- res.push(codePoint)
+ if (typeof options.destroy === 'function') this._destroy = options.destroy;
}
- return String.fromCharCode.apply(String, res)
+ Stream.call(this);
}
-function asciiSlice (buf, start, end) {
- var ret = ''
- end = Math.min(buf.length, end)
+Object.defineProperty(Readable.prototype, 'destroyed', {
+ get: function () {
+ if (this._readableState === undefined) {
+ return false;
+ }
+ return this._readableState.destroyed;
+ },
+ set: function (value) {
+ // we ignore the value if the stream
+ // has not been initialized yet
+ if (!this._readableState) {
+ return;
+ }
- for (var i = start; i < end; i++) {
- ret += String.fromCharCode(buf[i] & 0x7F)
+ // backward compatibility, the user is explicitly
+ // managing destroyed
+ this._readableState.destroyed = value;
}
- return ret
-}
+});
-function binarySlice (buf, start, end) {
- var ret = ''
- end = Math.min(buf.length, end)
+Readable.prototype.destroy = destroyImpl.destroy;
+Readable.prototype._undestroy = destroyImpl.undestroy;
+Readable.prototype._destroy = function (err, cb) {
+ this.push(null);
+ cb(err);
+};
- for (var i = start; i < end; i++) {
- ret += String.fromCharCode(buf[i])
+// Manually shove something into the read() buffer.
+// This returns true if the highWaterMark has not been hit yet,
+// similar to how Writable.write() returns true if you should
+// write() some more.
+Readable.prototype.push = function (chunk, encoding) {
+ var state = this._readableState;
+ var skipChunkCheck;
+
+ if (!state.objectMode) {
+ if (typeof chunk === 'string') {
+ encoding = encoding || state.defaultEncoding;
+ if (encoding !== state.encoding) {
+ chunk = Buffer.from(chunk, encoding);
+ encoding = '';
+ }
+ skipChunkCheck = true;
+ }
+ } else {
+ skipChunkCheck = true;
}
- return ret
-}
-function hexSlice (buf, start, end) {
- var len = buf.length
+ return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
+};
- if (!start || start < 0) start = 0
- if (!end || end < 0 || end > len) end = len
+// Unshift should *always* be something directly out of read()
+Readable.prototype.unshift = function (chunk) {
+ return readableAddChunk(this, chunk, null, true, false);
+};
- var out = ''
- for (var i = start; i < end; i++) {
- out += toHex(buf[i])
- }
- return out
-}
+function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
+ var state = stream._readableState;
+ if (chunk === null) {
+ state.reading = false;
+ onEofChunk(stream, state);
+ } else {
+ var er;
+ if (!skipChunkCheck) er = chunkInvalid(state, chunk);
+ if (er) {
+ stream.emit('error', er);
+ } else if (state.objectMode || chunk && chunk.length > 0) {
+ if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
+ chunk = _uint8ArrayToBuffer(chunk);
+ }
-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)
+ if (addToFront) {
+ if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
+ } else if (state.ended) {
+ stream.emit('error', new Error('stream.push() after EOF'));
+ } else {
+ state.reading = false;
+ if (state.decoder && !encoding) {
+ chunk = state.decoder.write(chunk);
+ if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
+ } else {
+ addChunk(stream, state, chunk, false);
+ }
+ }
+ } else if (!addToFront) {
+ state.reading = false;
+ }
}
- return res
-}
-Buffer.prototype.slice = function slice (start, end) {
- var len = this.length
- start = ~~start
- end = end === undefined ? len : ~~end
+ return needMoreData(state);
+}
- if (start < 0) {
- start += len
- if (start < 0) start = 0
- } else if (start > len) {
- start = len
- }
+function addChunk(stream, state, chunk, addToFront) {
+ if (state.flowing && state.length === 0 && !state.sync) {
+ stream.emit('data', chunk);
+ stream.read(0);
+ } else {
+ // update the buffer info.
+ state.length += state.objectMode ? 1 : chunk.length;
+ if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
- if (end < 0) {
- end += len
- if (end < 0) end = 0
- } else if (end > len) {
- end = len
+ if (state.needReadable) emitReadable(stream);
}
+ maybeReadMore(stream, state);
+}
- if (end < start) end = start
-
- var newBuf
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- newBuf = Buffer._augment(this.subarray(start, end))
- } else {
- var sliceLen = end - start
- newBuf = new Buffer(sliceLen, undefined)
- for (var i = 0; i < sliceLen; i++) {
- newBuf[i] = this[i + start]
- }
+function chunkInvalid(state, chunk) {
+ var er;
+ if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+ er = new TypeError('Invalid non-string/buffer chunk');
}
-
- if (newBuf.length) newBuf.parent = this.parent || this
-
- return newBuf
+ return er;
}
-/*
- * 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')
+// if it's past the high water mark, we can push in some more.
+// Also, if we have no data yet, we can stand some
+// more bytes. This is to work around cases where hwm=0,
+// such as the repl. Also, if the push() triggered a
+// readable event, and the user called read(largeNumber) such that
+// needReadable was set, then we ought to push more, so that another
+// 'readable' event will be triggered.
+function needMoreData(state) {
+ return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
}
-Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
- offset = offset | 0
- byteLength = byteLength | 0
- if (!noAssert) checkOffset(offset, byteLength, this.length)
+Readable.prototype.isPaused = function () {
+ return this._readableState.flowing === false;
+};
- var val = this[offset]
- var mul = 1
- var i = 0
- while (++i < byteLength && (mul *= 0x100)) {
- val += this[offset + i] * mul
- }
+// backwards compatibility.
+Readable.prototype.setEncoding = function (enc) {
+ if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+ this._readableState.decoder = new StringDecoder(enc);
+ this._readableState.encoding = enc;
+ return this;
+};
- return val
+// Don't raise the hwm > 8MB
+var MAX_HWM = 0x800000;
+function computeNewHighWaterMark(n) {
+ if (n >= MAX_HWM) {
+ n = MAX_HWM;
+ } else {
+ // Get the next highest power of 2 to prevent increasing hwm excessively in
+ // tiny amounts
+ n--;
+ n |= n >>> 1;
+ n |= n >>> 2;
+ n |= n >>> 4;
+ n |= n >>> 8;
+ n |= n >>> 16;
+ n++;
+ }
+ return n;
}
-Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
- offset = offset | 0
- byteLength = byteLength | 0
- if (!noAssert) {
- checkOffset(offset, byteLength, this.length)
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function howMuchToRead(n, state) {
+ if (n <= 0 || state.length === 0 && state.ended) return 0;
+ if (state.objectMode) return 1;
+ if (n !== n) {
+ // Only flow one buffer at a time
+ if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
}
-
- var val = this[offset + --byteLength]
- var mul = 1
- while (byteLength > 0 && (mul *= 0x100)) {
- val += this[offset + --byteLength] * mul
+ // If we're asking for more than the current hwm, then raise the hwm.
+ if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
+ if (n <= state.length) return n;
+ // Don't have enough
+ if (!state.ended) {
+ state.needReadable = true;
+ return 0;
}
-
- return val
+ return state.length;
}
-Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 1, this.length)
- return this[offset]
-}
+// you can override either this method, or the async _read(n) below.
+Readable.prototype.read = function (n) {
+ debug('read', n);
+ n = parseInt(n, 10);
+ var state = this._readableState;
+ var nOrig = n;
-Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 2, this.length)
- return this[offset] | (this[offset + 1] << 8)
-}
+ if (n !== 0) state.emittedReadable = false;
-Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 2, this.length)
- return (this[offset] << 8) | this[offset + 1]
-}
+ // if we're doing read(0) to trigger a readable event, but we
+ // already have a bunch of data in the buffer, then just trigger
+ // the 'readable' event and move on.
+ if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
+ debug('read: emitReadable', state.length, state.ended);
+ if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
+ return null;
+ }
-Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
+ n = howMuchToRead(n, state);
- return ((this[offset]) |
- (this[offset + 1] << 8) |
- (this[offset + 2] << 16)) +
- (this[offset + 3] * 0x1000000)
-}
+ // if we've ended, and we're now clear, then finish it up.
+ if (n === 0 && state.ended) {
+ if (state.length === 0) endReadable(this);
+ return null;
+ }
-Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
+ // All the actual chunk generation logic needs to be
+ // *below* the call to _read. The reason is that in certain
+ // synthetic stream cases, such as passthrough streams, _read
+ // may be a completely synchronous operation which may change
+ // the state of the read buffer, providing enough data when
+ // before there was *not* enough.
+ //
+ // So, the steps are:
+ // 1. Figure out what the state of things will be after we do
+ // a read from the buffer.
+ //
+ // 2. If that resulting state will trigger a _read, then call _read.
+ // Note that this may be asynchronous, or synchronous. Yes, it is
+ // deeply ugly to write APIs this way, but that still doesn't mean
+ // that the Readable class should behave improperly, as streams are
+ // designed to be sync/async agnostic.
+ // Take note if the _read call is sync or async (ie, if the read call
+ // has returned yet), so that we know whether or not it's safe to emit
+ // 'readable' etc.
+ //
+ // 3. Actually pull the requested chunks out of the buffer and return.
- return (this[offset] * 0x1000000) +
- ((this[offset + 1] << 16) |
- (this[offset + 2] << 8) |
- this[offset + 3])
-}
+ // if we need a readable event, then we need to do some reading.
+ var doRead = state.needReadable;
+ debug('need readable', doRead);
-Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
- offset = offset | 0
- byteLength = byteLength | 0
- if (!noAssert) checkOffset(offset, byteLength, this.length)
+ // if we currently have less than the highWaterMark, then also read some
+ if (state.length === 0 || state.length - n < state.highWaterMark) {
+ doRead = true;
+ debug('length less than watermark', doRead);
+ }
- var val = this[offset]
- var mul = 1
- var i = 0
- while (++i < byteLength && (mul *= 0x100)) {
- val += this[offset + i] * mul
+ // however, if we've ended, then there's no point, and if we're already
+ // reading, then it's unnecessary.
+ if (state.ended || state.reading) {
+ doRead = false;
+ debug('reading or ended', doRead);
+ } else if (doRead) {
+ debug('do read');
+ state.reading = true;
+ state.sync = true;
+ // if the length is currently zero, then we *need* a readable event.
+ if (state.length === 0) state.needReadable = true;
+ // call internal read method
+ this._read(state.highWaterMark);
+ state.sync = false;
+ // If _read pushed data synchronously, then `reading` will be false,
+ // and we need to re-evaluate how much data we can return to the user.
+ if (!state.reading) n = howMuchToRead(nOrig, state);
}
- mul *= 0x80
- if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+ var ret;
+ if (n > 0) ret = fromList(n, state);else ret = null;
- return val
-}
+ if (ret === null) {
+ state.needReadable = true;
+ n = 0;
+ } else {
+ state.length -= n;
+ }
-Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
- offset = offset | 0
- byteLength = byteLength | 0
- if (!noAssert) checkOffset(offset, byteLength, this.length)
+ if (state.length === 0) {
+ // If we have nothing in the buffer, then we want to know
+ // as soon as we *do* get something into the buffer.
+ if (!state.ended) state.needReadable = true;
- var i = byteLength
- var mul = 1
- var val = this[offset + --i]
- while (i > 0 && (mul *= 0x100)) {
- val += this[offset + --i] * mul
+ // If we tried to read() past the EOF, then emit end on the next tick.
+ if (nOrig !== n && state.ended) endReadable(this);
}
- mul *= 0x80
- if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+ if (ret !== null) this.emit('data', ret);
- return val
-}
+ return ret;
+};
-Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 1, this.length)
- if (!(this[offset] & 0x80)) return (this[offset])
- return ((0xff - this[offset] + 1) * -1)
-}
+function onEofChunk(stream, state) {
+ if (state.ended) return;
+ if (state.decoder) {
+ var chunk = state.decoder.end();
+ if (chunk && chunk.length) {
+ state.buffer.push(chunk);
+ state.length += state.objectMode ? 1 : chunk.length;
+ }
+ }
+ state.ended = true;
-Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 2, this.length)
- var val = this[offset] | (this[offset + 1] << 8)
- return (val & 0x8000) ? val | 0xFFFF0000 : val
+ // emit 'readable' now to make sure it gets picked up.
+ emitReadable(stream);
}
-Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 2, this.length)
- var val = this[offset + 1] | (this[offset] << 8)
- return (val & 0x8000) ? val | 0xFFFF0000 : val
+// Don't emit readable right away in sync mode, because this can trigger
+// another read() call => stack overflow. This way, it might trigger
+// a nextTick recursion warning, but that's not so bad.
+function emitReadable(stream) {
+ var state = stream._readableState;
+ state.needReadable = false;
+ if (!state.emittedReadable) {
+ debug('emitReadable', state.flowing);
+ state.emittedReadable = true;
+ if (state.sync) processNextTick(emitReadable_, stream);else emitReadable_(stream);
+ }
}
-Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
-
- return (this[offset]) |
- (this[offset + 1] << 8) |
- (this[offset + 2] << 16) |
- (this[offset + 3] << 24)
+function emitReadable_(stream) {
+ debug('emit readable');
+ stream.emit('readable');
+ flow(stream);
}
-Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
-
- return (this[offset] << 24) |
- (this[offset + 1] << 16) |
- (this[offset + 2] << 8) |
- (this[offset + 3])
+// at this point, the user has presumably seen the 'readable' event,
+// and called read() to consume some data. that may have triggered
+// in turn another _read(n) call, in which case reading = true if
+// it's in progress.
+// However, if we're not ended, or reading, and the length < hwm,
+// then go ahead and try to read some more preemptively.
+function maybeReadMore(stream, state) {
+ if (!state.readingMore) {
+ state.readingMore = true;
+ processNextTick(maybeReadMore_, stream, state);
+ }
}
-Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
- return ieee754.read(this, offset, true, 23, 4)
+function maybeReadMore_(stream, state) {
+ var len = state.length;
+ while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
+ debug('maybeReadMore read 0');
+ stream.read(0);
+ if (len === state.length)
+ // didn't get any data, stop spinning.
+ break;else len = state.length;
+ }
+ state.readingMore = false;
}
-Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
- return ieee754.read(this, offset, false, 23, 4)
-}
+// abstract method. to be overridden in specific implementation classes.
+// call cb(er, data) where data is <= n in length.
+// for virtual (non-string, non-buffer) streams, "length" is somewhat
+// arbitrary, and perhaps not very meaningful.
+Readable.prototype._read = function (n) {
+ this.emit('error', new Error('_read() is not implemented'));
+};
-Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 8, this.length)
- return ieee754.read(this, offset, true, 52, 8)
-}
+Readable.prototype.pipe = function (dest, pipeOpts) {
+ var src = this;
+ var state = this._readableState;
-Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 8, this.length)
- return ieee754.read(this, offset, false, 52, 8)
-}
+ switch (state.pipesCount) {
+ case 0:
+ state.pipes = dest;
+ break;
+ case 1:
+ state.pipes = [state.pipes, dest];
+ break;
+ default:
+ state.pipes.push(dest);
+ break;
+ }
+ state.pipesCount += 1;
+ debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
-function checkInt (buf, value, offset, ext, max, min) {
- if (!Buffer.isBuffer(buf)) throw new TypeError('buffer must be a Buffer instance')
- if (value > max || value < min) throw new RangeError('value is out of bounds')
- if (offset + ext > buf.length) throw new RangeError('index out of range')
-}
+ var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
-Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
- value = +value
- offset = offset | 0
- byteLength = byteLength | 0
- if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)
+ var endFn = doEnd ? onend : unpipe;
+ if (state.endEmitted) processNextTick(endFn);else src.once('end', endFn);
- var mul = 1
- var i = 0
- this[offset] = value & 0xFF
- while (++i < byteLength && (mul *= 0x100)) {
- this[offset + i] = (value / mul) & 0xFF
+ dest.on('unpipe', onunpipe);
+ function onunpipe(readable, unpipeInfo) {
+ debug('onunpipe');
+ if (readable === src) {
+ if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
+ unpipeInfo.hasUnpiped = true;
+ cleanup();
+ }
+ }
}
- return offset + byteLength
-}
-
-Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
- value = +value
- offset = offset | 0
- byteLength = byteLength | 0
- if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)
-
- var i = byteLength - 1
- var mul = 1
- this[offset + i] = value & 0xFF
- while (--i >= 0 && (mul *= 0x100)) {
- this[offset + i] = (value / mul) & 0xFF
+ function onend() {
+ debug('onend');
+ dest.end();
}
- return offset + byteLength
-}
+ // when the dest drains, it reduces the awaitDrain counter
+ // on the source. This would be more elegant with a .once()
+ // handler in flow(), but adding and removing repeatedly is
+ // too slow.
+ var ondrain = pipeOnDrain(src);
+ dest.on('drain', ondrain);
-Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
- value = +value
- offset = offset | 0
- if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
- if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
- this[offset] = value
- return offset + 1
-}
+ var cleanedUp = false;
+ function cleanup() {
+ debug('cleanup');
+ // cleanup event handlers once the pipe is broken
+ dest.removeListener('close', onclose);
+ dest.removeListener('finish', onfinish);
+ dest.removeListener('drain', ondrain);
+ dest.removeListener('error', onerror);
+ dest.removeListener('unpipe', onunpipe);
+ src.removeListener('end', onend);
+ src.removeListener('end', unpipe);
+ src.removeListener('data', ondata);
-function objectWriteUInt16 (buf, value, offset, littleEndian) {
- if (value < 0) value = 0xffff + value + 1
- for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; i++) {
- buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
- (littleEndian ? i : 1 - i) * 8
- }
-}
+ cleanedUp = true;
-Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
- value = +value
- offset = offset | 0
- if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- this[offset] = value
- this[offset + 1] = (value >>> 8)
- } else {
- objectWriteUInt16(this, value, offset, true)
+ // if the reader is waiting for a drain event from this
+ // specific writer, then it would cause it to never start
+ // flowing again.
+ // So, if this is awaiting a drain, then we just call it now.
+ // If we don't know, then assume that we are waiting for one.
+ if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
}
- 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)
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- this[offset] = (value >>> 8)
- this[offset + 1] = value
- } else {
- objectWriteUInt16(this, value, offset, false)
+ // If the user pushes more data while we're writing to dest then we'll end up
+ // in ondata again. However, we only want to increase awaitDrain once because
+ // dest will only emit one 'drain' event for the multiple writes.
+ // => Introduce a guard on increasing awaitDrain.
+ var increasedAwaitDrain = false;
+ src.on('data', ondata);
+ function ondata(chunk) {
+ debug('ondata');
+ increasedAwaitDrain = false;
+ var ret = dest.write(chunk);
+ if (false === ret && !increasedAwaitDrain) {
+ // If the user unpiped during `dest.write()`, it is possible
+ // to get stuck in a permanently paused state if that write
+ // also returned false.
+ // => Check whether `dest` is still a piping destination.
+ if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
+ debug('false write response, pause', src._readableState.awaitDrain);
+ src._readableState.awaitDrain++;
+ increasedAwaitDrain = true;
+ }
+ src.pause();
+ }
}
- return offset + 2
-}
-function objectWriteUInt32 (buf, value, offset, littleEndian) {
- if (value < 0) value = 0xffffffff + value + 1
- for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; i++) {
- buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
+ // if the dest has an error, then stop piping into it.
+ // however, don't suppress the throwing behavior for this.
+ function onerror(er) {
+ debug('onerror', er);
+ unpipe();
+ dest.removeListener('error', onerror);
+ if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
}
-}
-Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
- value = +value
- offset = offset | 0
- if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- this[offset + 3] = (value >>> 24)
- this[offset + 2] = (value >>> 16)
- this[offset + 1] = (value >>> 8)
- this[offset] = value
- } else {
- objectWriteUInt32(this, value, offset, true)
+ // Make sure our error handler is attached before userland ones.
+ prependListener(dest, 'error', onerror);
+
+ // Both close and finish should trigger unpipe, but only once.
+ function onclose() {
+ dest.removeListener('finish', onfinish);
+ unpipe();
}
- return offset + 4
-}
+ dest.once('close', onclose);
+ function onfinish() {
+ debug('onfinish');
+ dest.removeListener('close', onclose);
+ unpipe();
+ }
+ dest.once('finish', onfinish);
-Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
- value = +value
- offset = offset | 0
- if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- this[offset] = (value >>> 24)
- this[offset + 1] = (value >>> 16)
- this[offset + 2] = (value >>> 8)
- this[offset + 3] = value
- } else {
- objectWriteUInt32(this, value, offset, false)
+ function unpipe() {
+ debug('unpipe');
+ src.unpipe(dest);
}
- 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)
+ // tell the dest that it's being piped to
+ dest.emit('pipe', src);
- checkInt(this, value, offset, byteLength, limit - 1, -limit)
+ // start the flow if it hasn't been started already.
+ if (!state.flowing) {
+ debug('pipe resume');
+ src.resume();
}
- var i = 0
- var mul = 1
- var sub = value < 0 ? 1 : 0
- this[offset] = value & 0xFF
- while (++i < byteLength && (mul *= 0x100)) {
- this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
- }
+ return dest;
+};
- return offset + byteLength
+function pipeOnDrain(src) {
+ return function () {
+ var state = src._readableState;
+ debug('pipeOnDrain', state.awaitDrain);
+ if (state.awaitDrain) state.awaitDrain--;
+ if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
+ state.flowing = true;
+ flow(src);
+ }
+ };
}
-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)
- }
+Readable.prototype.unpipe = function (dest) {
+ var state = this._readableState;
+ var unpipeInfo = { hasUnpiped: false };
- var i = byteLength - 1
- var mul = 1
- var sub = value < 0 ? 1 : 0
- this[offset + i] = value & 0xFF
- while (--i >= 0 && (mul *= 0x100)) {
- this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
- }
+ // if we're not piping anywhere, then do nothing.
+ if (state.pipesCount === 0) return this;
- return offset + byteLength
-}
+ // just one destination. most common case.
+ if (state.pipesCount === 1) {
+ // passed in one, but it's not the right one.
+ if (dest && dest !== state.pipes) return this;
-Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
- value = +value
- offset = offset | 0
- if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
- if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
- if (value < 0) value = 0xff + value + 1
- this[offset] = value
- return offset + 1
-}
+ if (!dest) dest = state.pipes;
-Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
- value = +value
- offset = offset | 0
- if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- this[offset] = value
- this[offset + 1] = (value >>> 8)
- } else {
- objectWriteUInt16(this, value, offset, true)
+ // got a match.
+ state.pipes = null;
+ state.pipesCount = 0;
+ state.flowing = false;
+ if (dest) dest.emit('unpipe', this, unpipeInfo);
+ return this;
}
- 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)
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- this[offset] = (value >>> 8)
- this[offset + 1] = value
- } else {
- objectWriteUInt16(this, value, offset, false)
- }
- return offset + 2
-}
+ // slow case. multiple pipe destinations.
-Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
- value = +value
- offset = offset | 0
- if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- this[offset] = value
- this[offset + 1] = (value >>> 8)
- this[offset + 2] = (value >>> 16)
- this[offset + 3] = (value >>> 24)
- } else {
- objectWriteUInt32(this, value, offset, true)
- }
- return offset + 4
-}
+ if (!dest) {
+ // remove all.
+ var dests = state.pipes;
+ var len = state.pipesCount;
+ state.pipes = null;
+ state.pipesCount = 0;
+ state.flowing = false;
-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
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- this[offset] = (value >>> 24)
- this[offset + 1] = (value >>> 16)
- this[offset + 2] = (value >>> 8)
- this[offset + 3] = value
- } else {
- objectWriteUInt32(this, value, offset, false)
+ for (var i = 0; i < len; i++) {
+ dests[i].emit('unpipe', this, unpipeInfo);
+ }return this;
}
- return offset + 4
-}
-function checkIEEE754 (buf, value, offset, ext, max, min) {
- if (value > max || value < min) throw new RangeError('value is out of bounds')
- if (offset + ext > buf.length) throw new RangeError('index out of range')
- if (offset < 0) throw new RangeError('index out of range')
-}
+ // try to find the right one.
+ var index = indexOf(state.pipes, dest);
+ if (index === -1) return this;
-function writeFloat (buf, value, offset, littleEndian, noAssert) {
- if (!noAssert) {
- checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
- }
- ieee754.write(buf, value, offset, littleEndian, 23, 4)
- return offset + 4
-}
+ state.pipes.splice(index, 1);
+ state.pipesCount -= 1;
+ if (state.pipesCount === 1) state.pipes = state.pipes[0];
-Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
- return writeFloat(this, value, offset, true, noAssert)
-}
+ dest.emit('unpipe', this, unpipeInfo);
-Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
- return writeFloat(this, value, offset, false, noAssert)
-}
+ return this;
+};
-function writeDouble (buf, value, offset, littleEndian, noAssert) {
- if (!noAssert) {
- checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
+// set up data events if they are asked for
+// Ensure readable listeners eventually get something
+Readable.prototype.on = function (ev, fn) {
+ var res = Stream.prototype.on.call(this, ev, fn);
+
+ if (ev === 'data') {
+ // Start flowing on next tick if stream isn't explicitly paused
+ if (this._readableState.flowing !== false) this.resume();
+ } else if (ev === 'readable') {
+ var state = this._readableState;
+ if (!state.endEmitted && !state.readableListening) {
+ state.readableListening = state.needReadable = true;
+ state.emittedReadable = false;
+ if (!state.reading) {
+ processNextTick(nReadingNextTick, this);
+ } else if (state.length) {
+ emitReadable(this);
+ }
+ }
}
- 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)
-}
+ return res;
+};
+Readable.prototype.addListener = Readable.prototype.on;
-Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
- return writeDouble(this, value, offset, false, noAssert)
+function nReadingNextTick(self) {
+ debug('readable nexttick read 0');
+ self.read(0);
}
-// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
-Buffer.prototype.copy = function copy (target, targetStart, start, end) {
- 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
+// pause() and resume() are remnants of the legacy readable stream API
+// If the user uses them, then switch into old mode.
+Readable.prototype.resume = function () {
+ var state = this._readableState;
+ if (!state.flowing) {
+ debug('resume');
+ state.flowing = true;
+ resume(this, state);
+ }
+ return this;
+};
- // Fatal error conditions
- if (targetStart < 0) {
- throw new RangeError('targetStart out of bounds')
+function resume(stream, state) {
+ if (!state.resumeScheduled) {
+ state.resumeScheduled = true;
+ processNextTick(resume_, stream, state);
}
- if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
- 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
+function resume_(stream, state) {
+ if (!state.reading) {
+ debug('resume read 0');
+ stream.read(0);
}
- var len = end - start
- var i
+ state.resumeScheduled = false;
+ state.awaitDrain = 0;
+ stream.emit('resume');
+ flow(stream);
+ if (state.flowing && !state.reading) stream.read(0);
+}
- if (this === target && start < targetStart && targetStart < end) {
- // descending copy from end
- for (i = len - 1; i >= 0; i--) {
- target[i + targetStart] = this[i + start]
- }
- } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
- // ascending copy from start
- for (i = 0; i < len; i++) {
- target[i + targetStart] = this[i + start]
- }
- } else {
- target._set(this.subarray(start, start + len), targetStart)
+Readable.prototype.pause = function () {
+ debug('call pause flowing=%j', this._readableState.flowing);
+ if (false !== this._readableState.flowing) {
+ debug('pause');
+ this._readableState.flowing = false;
+ this.emit('pause');
}
+ return this;
+};
- return len
+function flow(stream) {
+ var state = stream._readableState;
+ debug('flow', state.flowing);
+ while (state.flowing && stream.read() !== null) {}
}
-// fill(value, start=0, end=buffer.length)
-Buffer.prototype.fill = function fill (value, start, end) {
- if (!value) value = 0
- if (!start) start = 0
- if (!end) end = this.length
+// wrap an old-style stream as the async data source.
+// This is *not* part of the readable stream interface.
+// It is an ugly unfortunate mess of history.
+Readable.prototype.wrap = function (stream) {
+ var state = this._readableState;
+ var paused = false;
- if (end < start) throw new RangeError('end < start')
+ var self = this;
+ stream.on('end', function () {
+ debug('wrapped end');
+ if (state.decoder && !state.ended) {
+ var chunk = state.decoder.end();
+ if (chunk && chunk.length) self.push(chunk);
+ }
- // Fill 0 bytes; we're done
- if (end === start) return
- if (this.length === 0) return
+ self.push(null);
+ });
- if (start < 0 || start >= this.length) throw new RangeError('start out of bounds')
- if (end < 0 || end > this.length) throw new RangeError('end out of bounds')
+ stream.on('data', function (chunk) {
+ debug('wrapped data');
+ if (state.decoder) chunk = state.decoder.write(chunk);
- var i
- if (typeof value === 'number') {
- for (i = start; i < end; i++) {
- this[i] = value
- }
- } else {
- var bytes = utf8ToBytes(value.toString())
- var len = bytes.length
- for (i = start; i < end; i++) {
- this[i] = bytes[i % len]
- }
- }
+ // don't skip over falsy values in objectMode
+ if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
- return this
-}
+ var ret = self.push(chunk);
+ if (!ret) {
+ paused = true;
+ stream.pause();
+ }
+ });
-/**
- * Creates a new `ArrayBuffer` with the *copied* memory of the buffer instance.
- * Added in Node 0.12. Only available in browsers that support ArrayBuffer.
- */
-Buffer.prototype.toArrayBuffer = function toArrayBuffer () {
- if (typeof Uint8Array !== 'undefined') {
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- return (new Buffer(this)).buffer
- } else {
- var buf = new Uint8Array(this.length)
- for (var i = 0, len = buf.length; i < len; i += 1) {
- buf[i] = this[i]
- }
- return buf.buffer
+ // proxy all the other methods.
+ // important when wrapping filters and duplexes.
+ for (var i in stream) {
+ if (this[i] === undefined && typeof stream[i] === 'function') {
+ this[i] = function (method) {
+ return function () {
+ return stream[method].apply(stream, arguments);
+ };
+ }(i);
}
- } else {
- throw new TypeError('Buffer.toArrayBuffer not supported in this browser')
}
-}
-// HELPER FUNCTIONS
-// ================
+ // proxy certain important events.
+ for (var n = 0; n < kProxyEvents.length; n++) {
+ stream.on(kProxyEvents[n], self.emit.bind(self, kProxyEvents[n]));
+ }
-var BP = Buffer.prototype
+ // when we try to consume some more bytes, simply unpause the
+ // underlying stream.
+ self._read = function (n) {
+ debug('wrapped _read', n);
+ if (paused) {
+ paused = false;
+ stream.resume();
+ }
+ };
-/**
- * Augment a Uint8Array *instance* (not the Uint8Array class!) with Buffer methods
- */
-Buffer._augment = function _augment (arr) {
- arr.constructor = Buffer
- arr._isBuffer = true
-
- // save reference to original Uint8Array set method before overwriting
- arr._set = arr.set
-
- // deprecated
- arr.get = BP.get
- arr.set = BP.set
-
- arr.write = BP.write
- arr.toString = BP.toString
- arr.toLocaleString = BP.toString
- arr.toJSON = BP.toJSON
- arr.equals = BP.equals
- arr.compare = BP.compare
- arr.indexOf = BP.indexOf
- arr.copy = BP.copy
- arr.slice = BP.slice
- arr.readUIntLE = BP.readUIntLE
- arr.readUIntBE = BP.readUIntBE
- arr.readUInt8 = BP.readUInt8
- arr.readUInt16LE = BP.readUInt16LE
- arr.readUInt16BE = BP.readUInt16BE
- arr.readUInt32LE = BP.readUInt32LE
- arr.readUInt32BE = BP.readUInt32BE
- arr.readIntLE = BP.readIntLE
- arr.readIntBE = BP.readIntBE
- arr.readInt8 = BP.readInt8
- arr.readInt16LE = BP.readInt16LE
- arr.readInt16BE = BP.readInt16BE
- arr.readInt32LE = BP.readInt32LE
- arr.readInt32BE = BP.readInt32BE
- arr.readFloatLE = BP.readFloatLE
- arr.readFloatBE = BP.readFloatBE
- arr.readDoubleLE = BP.readDoubleLE
- arr.readDoubleBE = BP.readDoubleBE
- arr.writeUInt8 = BP.writeUInt8
- arr.writeUIntLE = BP.writeUIntLE
- arr.writeUIntBE = BP.writeUIntBE
- arr.writeUInt16LE = BP.writeUInt16LE
- arr.writeUInt16BE = BP.writeUInt16BE
- arr.writeUInt32LE = BP.writeUInt32LE
- arr.writeUInt32BE = BP.writeUInt32BE
- arr.writeIntLE = BP.writeIntLE
- arr.writeIntBE = BP.writeIntBE
- arr.writeInt8 = BP.writeInt8
- arr.writeInt16LE = BP.writeInt16LE
- arr.writeInt16BE = BP.writeInt16BE
- arr.writeInt32LE = BP.writeInt32LE
- arr.writeInt32BE = BP.writeInt32BE
- arr.writeFloatLE = BP.writeFloatLE
- arr.writeFloatBE = BP.writeFloatBE
- arr.writeDoubleLE = BP.writeDoubleLE
- arr.writeDoubleBE = BP.writeDoubleBE
- arr.fill = BP.fill
- arr.inspect = BP.inspect
- arr.toArrayBuffer = BP.toArrayBuffer
+ return self;
+};
- return arr
-}
+// exposed for testing purposes only.
+Readable._fromList = fromList;
-var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g
+// Pluck off n bytes from an array of buffers.
+// Length is the combined lengths of all the buffers in the list.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function fromList(n, state) {
+ // nothing buffered
+ if (state.length === 0) return null;
-function base64clean (str) {
- // Node strips out invalid characters like \n and \t from the string, base64-js does not
- str = stringtrim(str).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 + '='
+ var ret;
+ if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
+ // read it all, truncate the list
+ if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
+ state.buffer.clear();
+ } else {
+ // read part of list
+ ret = fromListPartial(n, state.buffer, state.decoder);
}
- return str
-}
-function stringtrim (str) {
- if (str.trim) return str.trim()
- return str.replace(/^\s+|\s+$/g, '')
+ return ret;
}
-function toHex (n) {
- if (n < 16) return '0' + n.toString(16)
- return n.toString(16)
+// Extracts only enough buffered data to satisfy the amount requested.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function fromListPartial(n, list, hasStrings) {
+ var ret;
+ if (n < list.head.data.length) {
+ // slice is the same for buffers and strings
+ ret = list.head.data.slice(0, n);
+ list.head.data = list.head.data.slice(n);
+ } else if (n === list.head.data.length) {
+ // first chunk is a perfect match
+ ret = list.shift();
+ } else {
+ // result spans more than one buffer
+ ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
+ }
+ return ret;
}
-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
+// Copies a specified amount of characters from the list of buffered data
+// chunks.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function copyFromBufferString(n, list) {
+ var p = list.head;
+ var c = 1;
+ var ret = p.data;
+ n -= ret.length;
+ while (p = p.next) {
+ var str = p.data;
+ var nb = n > str.length ? str.length : n;
+ if (nb === str.length) ret += str;else ret += str.slice(0, n);
+ n -= nb;
+ if (n === 0) {
+ if (nb === str.length) {
+ ++c;
+ if (p.next) list.head = p.next;else list.head = list.tail = null;
+ } else {
+ list.head = p;
+ p.data = str.slice(nb);
}
-
- // 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')
+ break;
}
+ ++c;
}
-
- return bytes
+ list.length -= c;
+ return ret;
}
-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)
+// Copies a specified amount of bytes from the list of buffered data chunks.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function copyFromBuffer(n, list) {
+ var ret = Buffer.allocUnsafe(n);
+ var p = list.head;
+ var c = 1;
+ p.data.copy(ret);
+ n -= p.data.length;
+ while (p = p.next) {
+ var buf = p.data;
+ var nb = n > buf.length ? buf.length : n;
+ buf.copy(ret, ret.length - n, 0, nb);
+ n -= nb;
+ if (n === 0) {
+ if (nb === buf.length) {
+ ++c;
+ if (p.next) list.head = p.next;else list.head = list.tail = null;
+ } else {
+ list.head = p;
+ p.data = buf.slice(nb);
+ }
+ break;
+ }
+ ++c;
}
- return byteArray
+ list.length -= c;
+ return ret;
}
-function utf16leToBytes (str, units) {
- var c, hi, lo
- var byteArray = []
- for (var i = 0; i < str.length; i++) {
- if ((units -= 2) < 0) break
+function endReadable(stream) {
+ var state = stream._readableState;
- c = str.charCodeAt(i)
- hi = c >> 8
- lo = c % 256
- byteArray.push(lo)
- byteArray.push(hi)
+ // If we get here before consuming all the bytes, then that is a
+ // bug in node. Should never happen.
+ if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
+
+ if (!state.endEmitted) {
+ state.ended = true;
+ processNextTick(endReadableNT, state, stream);
}
+}
- return byteArray
+function endReadableNT(state, stream) {
+ // Check that we didn't get one last unshift.
+ if (!state.endEmitted && state.length === 0) {
+ state.endEmitted = true;
+ stream.readable = false;
+ stream.emit('end');
+ }
}
-function base64ToBytes (str) {
- return base64.toByteArray(base64clean(str))
+function forEach(xs, f) {
+ for (var i = 0, l = xs.length; i < l; i++) {
+ f(xs[i], i);
+ }
}
-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]
+function indexOf(xs, x) {
+ for (var i = 0, l = xs.length; i < l; i++) {
+ if (xs[i] === x) return i;
}
- return i
+ return -1;
}
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./_stream_duplex":14,"./internal/streams/BufferList":19,"./internal/streams/destroy":20,"./internal/streams/stream":21,"_process":12,"core-util-is":5,"events":6,"inherits":8,"isarray":10,"process-nextick-args":11,"safe-buffer":26,"string_decoder/":28,"util":3}],17:[function(require,module,exports){
+// 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.
-},{"base64-js":8,"ieee754":9,"is-array":10}],8:[function(require,module,exports){
-var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
-
-;(function (exports) {
- 'use strict';
-
- var Arr = (typeof Uint8Array !== 'undefined')
- ? Uint8Array
- : Array
-
- var PLUS = '+'.charCodeAt(0)
- var SLASH = '/'.charCodeAt(0)
- var NUMBER = '0'.charCodeAt(0)
- var LOWER = 'a'.charCodeAt(0)
- var UPPER = 'A'.charCodeAt(0)
- var PLUS_URL_SAFE = '-'.charCodeAt(0)
- var SLASH_URL_SAFE = '_'.charCodeAt(0)
-
- function decode (elt) {
- var code = elt.charCodeAt(0)
- if (code === PLUS ||
- code === PLUS_URL_SAFE)
- return 62 // '+'
- if (code === SLASH ||
- code === SLASH_URL_SAFE)
- return 63 // '/'
- if (code < NUMBER)
- return -1 //no match
- if (code < NUMBER + 10)
- return code - NUMBER + 26 + 26
- if (code < UPPER + 26)
- return code - UPPER
- if (code < LOWER + 26)
- return code - LOWER + 26
- }
+// a transform stream is a readable/writable stream where you do
+// something with the data. Sometimes it's called a "filter",
+// but that's not a great name for it, since that implies a thing where
+// some bits pass through, and others are simply ignored. (That would
+// be a valid example of a transform, of course.)
+//
+// While the output is causally related to the input, it's not a
+// necessarily symmetric or synchronous transformation. For example,
+// a zlib stream might take multiple plain-text writes(), and then
+// emit a single compressed chunk some time in the future.
+//
+// Here's how this works:
+//
+// The Transform stream has all the aspects of the readable and writable
+// stream classes. When you write(chunk), that calls _write(chunk,cb)
+// internally, and returns false if there's a lot of pending writes
+// buffered up. When you call read(), that calls _read(n) until
+// there's enough pending readable data buffered up.
+//
+// In a transform stream, the written data is placed in a buffer. When
+// _read(n) is called, it transforms the queued up data, calling the
+// buffered _write cb's as it consumes chunks. If consuming a single
+// written chunk would result in multiple output chunks, then the first
+// outputted bit calls the readcb, and subsequent chunks just go into
+// the read buffer, and will cause it to emit 'readable' if necessary.
+//
+// This way, back-pressure is actually determined by the reading side,
+// since _read has to be called to start processing a new chunk. However,
+// a pathological inflate type of transform can cause excessive buffering
+// here. For example, imagine a stream where every byte of input is
+// interpreted as an integer from 0-255, and then results in that many
+// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in
+// 1kb of data being output. In this case, you could write a very small
+// amount of input, and end up with a very large amount of output. In
+// such a pathological inflating mechanism, there'd be no way to tell
+// the system to stop doing the transform. A single 4MB write could
+// cause the system to run out of memory.
+//
+// However, even in such a pathological case, only a single written chunk
+// would be consumed, and then the rest would wait (un-transformed) until
+// the results of the previous transformed chunk were consumed.
- function b64ToByteArray (b64) {
- var i, j, l, tmp, placeHolders, arr
+'use strict';
- if (b64.length % 4 > 0) {
- throw new Error('Invalid string. Length must be a multiple of 4')
- }
+module.exports = Transform;
- // the number of equal signs (place holders)
- // if there are two placeholders, than the two characters before it
- // represent one byte
- // if there is only one, then the three characters before it represent 2 bytes
- // this is just a cheap hack to not do indexOf twice
- var len = b64.length
- placeHolders = '=' === b64.charAt(len - 2) ? 2 : '=' === b64.charAt(len - 1) ? 1 : 0
+var Duplex = require('./_stream_duplex');
- // base64 is 4/3 + up to two characters of the original data
- arr = new Arr(b64.length * 3 / 4 - placeHolders)
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
- // if there are placeholders, only get up to the last complete 4 chars
- l = placeHolders > 0 ? b64.length - 4 : b64.length
+util.inherits(Transform, Duplex);
- var L = 0
+function TransformState(stream) {
+ this.afterTransform = function (er, data) {
+ return afterTransform(stream, er, data);
+ };
- function push (v) {
- arr[L++] = v
- }
+ this.needTransform = false;
+ this.transforming = false;
+ this.writecb = null;
+ this.writechunk = null;
+ this.writeencoding = null;
+}
- for (i = 0, j = 0; i < l; i += 4, j += 3) {
- tmp = (decode(b64.charAt(i)) << 18) | (decode(b64.charAt(i + 1)) << 12) | (decode(b64.charAt(i + 2)) << 6) | decode(b64.charAt(i + 3))
- push((tmp & 0xFF0000) >> 16)
- push((tmp & 0xFF00) >> 8)
- push(tmp & 0xFF)
- }
+function afterTransform(stream, er, data) {
+ var ts = stream._transformState;
+ ts.transforming = false;
- if (placeHolders === 2) {
- tmp = (decode(b64.charAt(i)) << 2) | (decode(b64.charAt(i + 1)) >> 4)
- push(tmp & 0xFF)
- } else if (placeHolders === 1) {
- tmp = (decode(b64.charAt(i)) << 10) | (decode(b64.charAt(i + 1)) << 4) | (decode(b64.charAt(i + 2)) >> 2)
- push((tmp >> 8) & 0xFF)
- push(tmp & 0xFF)
- }
+ var cb = ts.writecb;
- return arr
- }
+ if (!cb) {
+ return stream.emit('error', new Error('write callback called multiple times'));
+ }
- function uint8ToBase64 (uint8) {
- var i,
- extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
- output = "",
- temp, length
+ ts.writechunk = null;
+ ts.writecb = null;
- function encode (num) {
- return lookup.charAt(num)
- }
+ if (data !== null && data !== undefined) stream.push(data);
- function tripletToBase64 (num) {
- return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F)
- }
+ cb(er);
- // go through the array every three bytes, we'll deal with trailing stuff later
- for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
- temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
- output += tripletToBase64(temp)
- }
+ var rs = stream._readableState;
+ rs.reading = false;
+ if (rs.needReadable || rs.length < rs.highWaterMark) {
+ stream._read(rs.highWaterMark);
+ }
+}
- // pad the end with zeros, but make sure to not forget the extra bytes
- switch (extraBytes) {
- case 1:
- temp = uint8[uint8.length - 1]
- output += encode(temp >> 2)
- output += encode((temp << 4) & 0x3F)
- output += '=='
- break
- case 2:
- temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1])
- output += encode(temp >> 10)
- output += encode((temp >> 4) & 0x3F)
- output += encode((temp << 2) & 0x3F)
- output += '='
- break
- }
+function Transform(options) {
+ if (!(this instanceof Transform)) return new Transform(options);
- return output
- }
+ Duplex.call(this, options);
- exports.toByteArray = b64ToByteArray
- exports.fromByteArray = uint8ToBase64
-}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))
+ this._transformState = new TransformState(this);
-},{}],9:[function(require,module,exports){
-exports.read = function (buffer, offset, isLE, mLen, nBytes) {
- var e, m
- var eLen = nBytes * 8 - mLen - 1
- var eMax = (1 << eLen) - 1
- var eBias = eMax >> 1
- var nBits = -7
- var i = isLE ? (nBytes - 1) : 0
- var d = isLE ? -1 : 1
- var s = buffer[offset + i]
+ var stream = this;
- i += d
+ // start out asking for a readable event once data is transformed.
+ this._readableState.needReadable = true;
- e = s & ((1 << (-nBits)) - 1)
- s >>= (-nBits)
- nBits += eLen
- for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+ // we have implemented the _read method, and done the other things
+ // that Readable wants before the first _read call, so unset the
+ // sync guard flag.
+ this._readableState.sync = false;
- m = e & ((1 << (-nBits)) - 1)
- e >>= (-nBits)
- nBits += mLen
- for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+ if (options) {
+ if (typeof options.transform === 'function') this._transform = options.transform;
- if (e === 0) {
- e = 1 - eBias
- } else if (e === eMax) {
- return m ? NaN : ((s ? -1 : 1) * Infinity)
- } else {
- m = m + Math.pow(2, mLen)
- e = e - eBias
+ if (typeof options.flush === 'function') this._flush = options.flush;
}
- return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
-}
-exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
- var e, m, c
- var eLen = nBytes * 8 - mLen - 1
- var eMax = (1 << eLen) - 1
- var eBias = eMax >> 1
- var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
- var i = isLE ? 0 : (nBytes - 1)
- var d = isLE ? 1 : -1
- var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
+ // When the writable side finishes, then flush out anything remaining.
+ this.once('prefinish', function () {
+ if (typeof this._flush === 'function') this._flush(function (er, data) {
+ done(stream, er, data);
+ });else done(stream);
+ });
+}
- value = Math.abs(value)
+Transform.prototype.push = function (chunk, encoding) {
+ this._transformState.needTransform = false;
+ return Duplex.prototype.push.call(this, chunk, encoding);
+};
- if (isNaN(value) || value === Infinity) {
- m = isNaN(value) ? 1 : 0
- e = eMax
- } else {
- e = Math.floor(Math.log(value) / Math.LN2)
- if (value * (c = Math.pow(2, -e)) < 1) {
- e--
- c *= 2
- }
- if (e + eBias >= 1) {
- value += rt / c
- } else {
- value += rt * Math.pow(2, 1 - eBias)
- }
- if (value * c >= 2) {
- e++
- c /= 2
- }
+// This is the part where you do stuff!
+// override this function in implementation classes.
+// 'chunk' is an input chunk.
+//
+// Call `push(newChunk)` to pass along transformed output
+// to the readable side. You may call 'push' zero or more times.
+//
+// Call `cb(err)` when you are done with this chunk. If you pass
+// an error, then that'll put the hurt on the whole operation. If you
+// never call cb(), then you'll never get another chunk.
+Transform.prototype._transform = function (chunk, encoding, cb) {
+ throw new Error('_transform() is not implemented');
+};
- if (e + eBias >= eMax) {
- m = 0
- e = eMax
- } else if (e + eBias >= 1) {
- m = (value * c - 1) * Math.pow(2, mLen)
- e = e + eBias
- } else {
- m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
- e = 0
- }
+Transform.prototype._write = function (chunk, encoding, cb) {
+ var ts = this._transformState;
+ ts.writecb = cb;
+ ts.writechunk = chunk;
+ ts.writeencoding = encoding;
+ if (!ts.transforming) {
+ var rs = this._readableState;
+ if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
}
+};
- for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
-
- e = (e << mLen) | m
- eLen += mLen
- for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+// Doesn't matter what the args are here.
+// _transform does all the work.
+// That we got here means that the readable side wants more data.
+Transform.prototype._read = function (n) {
+ var ts = this._transformState;
- buffer[offset + i - d] |= s * 128
-}
+ if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
+ ts.transforming = true;
+ this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
+ } else {
+ // mark that we need a transform, so that any data that comes in
+ // will get processed, now that we've asked for it.
+ ts.needTransform = true;
+ }
+};
-},{}],10:[function(require,module,exports){
+Transform.prototype._destroy = function (err, cb) {
+ var _this = this;
-/**
- * isArray
- */
+ Duplex.prototype._destroy.call(this, err, function (err2) {
+ cb(err2);
+ _this.emit('close');
+ });
+};
-var isArray = Array.isArray;
+function done(stream, er, data) {
+ if (er) return stream.emit('error', er);
-/**
- * toString
- */
+ if (data !== null && data !== undefined) stream.push(data);
-var str = Object.prototype.toString;
+ // if there's nothing in the write buffer, then that means
+ // that nothing more will ever be provided
+ var ws = stream._writableState;
+ var ts = stream._transformState;
-/**
- * Whether or not the given `val`
- * is an array.
- *
- * example:
- *
- * isArray([]);
- * // > true
- * isArray(arguments);
- * // > false
- * isArray('');
- * // > false
- *
- * @param {mixed} val
- * @return {bool}
- */
+ if (ws.length) throw new Error('Calling transform done when ws.length != 0');
-module.exports = isArray || function (val) {
- return !! val && '[object Array]' == str.call(val);
-};
+ if (ts.transforming) throw new Error('Calling transform done when still transforming');
-},{}],11:[function(require,module,exports){
+ return stream.push(null);
+}
+},{"./_stream_duplex":14,"core-util-is":5,"inherits":8}],18:[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
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
-function EventEmitter() {
- this._events = this._events || {};
- this._maxListeners = this._maxListeners || undefined;
+// A bit simpler than readable streams.
+// Implement an async ._write(chunk, encoding, cb), and it'll handle all
+// the drain event emission and buffering.
+
+'use strict';
+
+/*<replacement>*/
+
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
+
+module.exports = Writable;
+
+/* <replacement> */
+function WriteReq(chunk, encoding, cb) {
+ this.chunk = chunk;
+ this.encoding = encoding;
+ this.callback = cb;
+ this.next = null;
}
-module.exports = EventEmitter;
-// Backwards-compat with node 0.10.x
-EventEmitter.EventEmitter = EventEmitter;
+// It seems a linked list but it is not
+// there will be only 2 of these for each stream
+function CorkedRequest(state) {
+ var _this = this;
-EventEmitter.prototype._events = undefined;
-EventEmitter.prototype._maxListeners = undefined;
+ this.next = null;
+ this.entry = null;
+ this.finish = function () {
+ onCorkedFinish(_this, state);
+ };
+}
+/* </replacement> */
-// By default EventEmitters will print a warning if more than 10 listeners are
-// added to it. This is a useful default which helps finding memory leaks.
-EventEmitter.defaultMaxListeners = 10;
+/*<replacement>*/
+var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick;
+/*</replacement>*/
-// Obviously not all Emitters should be limited to 10. This function allows
-// that to be increased. Set to zero for unlimited.
-EventEmitter.prototype.setMaxListeners = function(n) {
- if (!isNumber(n) || n < 0 || isNaN(n))
- throw TypeError('n must be a positive number');
- this._maxListeners = n;
- return this;
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
+
+Writable.WritableState = WritableState;
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+/*<replacement>*/
+var internalUtil = {
+ deprecate: require('util-deprecate')
};
+/*</replacement>*/
-EventEmitter.prototype.emit = function(type) {
- var er, handler, len, args, i, listeners;
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
- if (!this._events)
- this._events = {};
+/*<replacement>*/
+var Buffer = require('safe-buffer').Buffer;
+var OurUint8Array = global.Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+ return Buffer.from(chunk);
+}
+function _isUint8Array(obj) {
+ return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+/*</replacement>*/
- // If there is no 'error' event listener then throw.
- if (type === 'error') {
- if (!this._events.error ||
- (isObject(this._events.error) && !this._events.error.length)) {
- er = arguments[1];
- if (er instanceof Error) {
- throw er; // Unhandled 'error' event
- }
- throw TypeError('Uncaught, unspecified "error" event.');
- }
- }
+var destroyImpl = require('./internal/streams/destroy');
- handler = this._events[type];
+util.inherits(Writable, Stream);
- if (isUndefined(handler))
- return false;
+function nop() {}
- if (isFunction(handler)) {
- switch (arguments.length) {
- // fast cases
- case 1:
- handler.call(this);
- break;
- case 2:
- handler.call(this, arguments[1]);
- break;
- case 3:
- handler.call(this, arguments[1], arguments[2]);
- break;
- // slower
- default:
- len = arguments.length;
- args = new Array(len - 1);
- for (i = 1; i < len; i++)
- args[i - 1] = arguments[i];
- handler.apply(this, args);
- }
- } else if (isObject(handler)) {
- len = arguments.length;
- args = new Array(len - 1);
- for (i = 1; i < len; i++)
- args[i - 1] = arguments[i];
+function WritableState(options, stream) {
+ Duplex = Duplex || require('./_stream_duplex');
- listeners = handler.slice();
- len = listeners.length;
- for (i = 0; i < len; i++)
- listeners[i].apply(this, args);
- }
+ options = options || {};
- return true;
-};
+ // object stream flag to indicate whether or not this stream
+ // contains buffers or objects.
+ this.objectMode = !!options.objectMode;
-EventEmitter.prototype.addListener = function(type, listener) {
- var m;
+ if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
+ // the point at which write() starts returning false
+ // Note: 0 is a valid value, means that we always return false if
+ // the entire buffer is not flushed immediately on write()
+ var hwm = options.highWaterMark;
+ var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+ this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
- if (!this._events)
- this._events = {};
+ // cast to ints.
+ this.highWaterMark = Math.floor(this.highWaterMark);
- // To avoid recursion in the case that type === "newListener"! Before
- // adding it to the listeners, first emit "newListener".
- if (this._events.newListener)
- this.emit('newListener', type,
- isFunction(listener.listener) ?
- listener.listener : listener);
+ // if _final has been called
+ this.finalCalled = false;
- if (!this._events[type])
- // Optimize the case of one listener. Don't need the extra array object.
- this._events[type] = listener;
- else if (isObject(this._events[type]))
- // If we've already got an array, just append.
- this._events[type].push(listener);
- else
- // Adding the second element, need to change to array.
- this._events[type] = [this._events[type], listener];
+ // drain event flag.
+ this.needDrain = false;
+ // at the start of calling end()
+ this.ending = false;
+ // when end() has been called, and returned
+ this.ended = false;
+ // when 'finish' is emitted
+ this.finished = false;
- // Check for listener leak
- if (isObject(this._events[type]) && !this._events[type].warned) {
- var m;
- if (!isUndefined(this._maxListeners)) {
- m = this._maxListeners;
- } else {
- m = EventEmitter.defaultMaxListeners;
- }
+ // has it been destroyed
+ this.destroyed = false;
- if (m && m > 0 && this._events[type].length > m) {
- this._events[type].warned = true;
- console.error('(node) warning: possible EventEmitter memory ' +
- 'leak detected. %d listeners added. ' +
- 'Use emitter.setMaxListeners() to increase limit.',
- this._events[type].length);
- if (typeof console.trace === 'function') {
- // not supported in IE 10
- console.trace();
- }
- }
- }
+ // should we decode strings into buffers before passing to _write?
+ // this is here so that some node-core streams can optimize string
+ // handling at a lower level.
+ var noDecode = options.decodeStrings === false;
+ this.decodeStrings = !noDecode;
- return this;
-};
+ // Crypto is kind of old and crusty. Historically, its default string
+ // encoding is 'binary' so we have to make this configurable.
+ // Everything else in the universe uses 'utf8', though.
+ this.defaultEncoding = options.defaultEncoding || 'utf8';
-EventEmitter.prototype.on = EventEmitter.prototype.addListener;
+ // not an actual buffer we keep track of, but a measurement
+ // of how much we're waiting to get pushed to some underlying
+ // socket or file.
+ this.length = 0;
-EventEmitter.prototype.once = function(type, listener) {
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
+ // a flag to see when we're in the middle of a write.
+ this.writing = false;
- var fired = false;
+ // when true all writes will be buffered until .uncork() call
+ this.corked = 0;
- function g() {
- this.removeListener(type, g);
+ // a flag to be able to tell if the onwrite cb is called immediately,
+ // or on a later tick. We set this to true at first, because any
+ // actions that shouldn't happen until "later" should generally also
+ // not happen before the first write call.
+ this.sync = true;
- if (!fired) {
- fired = true;
- listener.apply(this, arguments);
- }
- }
+ // a flag to know if we're processing previously buffered items, which
+ // may call the _write() callback in the same tick, so that we don't
+ // end up in an overlapped onwrite situation.
+ this.bufferProcessing = false;
- g.listener = listener;
- this.on(type, g);
+ // the callback that's passed to _write(chunk,cb)
+ this.onwrite = function (er) {
+ onwrite(stream, er);
+ };
- return this;
-};
+ // the callback that the user supplies to write(chunk,encoding,cb)
+ this.writecb = null;
-// emits a 'removeListener' event iff the listener was removed
-EventEmitter.prototype.removeListener = function(type, listener) {
- var list, position, length, i;
+ // the amount that is being written when _write is called.
+ this.writelen = 0;
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
+ this.bufferedRequest = null;
+ this.lastBufferedRequest = null;
- if (!this._events || !this._events[type])
- return this;
+ // number of pending user-supplied write callbacks
+ // this must be 0 before 'finish' can be emitted
+ this.pendingcb = 0;
- list = this._events[type];
- length = list.length;
- position = -1;
+ // emit prefinish if the only thing we're waiting for is _write cbs
+ // This is relevant for synchronous Transform streams
+ this.prefinished = false;
- if (list === listener ||
- (isFunction(list.listener) && list.listener === listener)) {
- delete this._events[type];
- if (this._events.removeListener)
- this.emit('removeListener', type, listener);
+ // True if the error was already emitted and should not be thrown again
+ this.errorEmitted = false;
- } else if (isObject(list)) {
- for (i = length; i-- > 0;) {
- if (list[i] === listener ||
- (list[i].listener && list[i].listener === listener)) {
- position = i;
- break;
- }
- }
+ // count buffered requests
+ this.bufferedRequestCount = 0;
- if (position < 0)
- return this;
+ // allocate the first CorkedRequest, there is always
+ // one allocated and free to use, and we maintain at most two
+ this.corkedRequestsFree = new CorkedRequest(this);
+}
- if (list.length === 1) {
- list.length = 0;
- delete this._events[type];
- } else {
- list.splice(position, 1);
+WritableState.prototype.getBuffer = function getBuffer() {
+ var current = this.bufferedRequest;
+ var out = [];
+ while (current) {
+ out.push(current);
+ current = current.next;
+ }
+ return out;
+};
+
+(function () {
+ try {
+ Object.defineProperty(WritableState.prototype, 'buffer', {
+ get: internalUtil.deprecate(function () {
+ return this.getBuffer();
+ }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
+ });
+ } catch (_) {}
+})();
+
+// Test _writableState for inheritance to account for Duplex streams,
+// whose prototype chain only points to Readable.
+var realHasInstance;
+if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
+ realHasInstance = Function.prototype[Symbol.hasInstance];
+ Object.defineProperty(Writable, Symbol.hasInstance, {
+ value: function (object) {
+ if (realHasInstance.call(this, object)) return true;
+
+ return object && object._writableState instanceof WritableState;
}
+ });
+} else {
+ realHasInstance = function (object) {
+ return object instanceof this;
+ };
+}
- if (this._events.removeListener)
- this.emit('removeListener', type, listener);
+function Writable(options) {
+ Duplex = Duplex || require('./_stream_duplex');
+
+ // Writable ctor is applied to Duplexes, too.
+ // `realHasInstance` is necessary because using plain `instanceof`
+ // would return false, as no `_writableState` property is attached.
+
+ // Trying to use the custom `instanceof` for Writable here will also break the
+ // Node.js LazyTransform implementation, which has a non-trivial getter for
+ // `_writableState` that would lead to infinite recursion.
+ if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
+ return new Writable(options);
}
- return this;
+ this._writableState = new WritableState(options, this);
+
+ // legacy.
+ this.writable = true;
+
+ if (options) {
+ if (typeof options.write === 'function') this._write = options.write;
+
+ if (typeof options.writev === 'function') this._writev = options.writev;
+
+ if (typeof options.destroy === 'function') this._destroy = options.destroy;
+
+ if (typeof options.final === 'function') this._final = options.final;
+ }
+
+ Stream.call(this);
+}
+
+// Otherwise people can pipe Writable streams, which is just wrong.
+Writable.prototype.pipe = function () {
+ this.emit('error', new Error('Cannot pipe, not readable'));
};
-EventEmitter.prototype.removeAllListeners = function(type) {
- var key, listeners;
+function writeAfterEnd(stream, cb) {
+ var er = new Error('write after end');
+ // TODO: defer error events consistently everywhere, not just the cb
+ stream.emit('error', er);
+ processNextTick(cb, er);
+}
- if (!this._events)
- return this;
+// Checks that a user-supplied chunk is valid, especially for the particular
+// mode the stream is in. Currently this means that `null` is never accepted
+// and undefined/non-string values are only allowed in object mode.
+function validChunk(stream, state, chunk, cb) {
+ var valid = true;
+ var er = false;
- // not listening for removeListener, no need to emit
- if (!this._events.removeListener) {
- if (arguments.length === 0)
- this._events = {};
- else if (this._events[type])
- delete this._events[type];
- return this;
+ if (chunk === null) {
+ er = new TypeError('May not write null values to stream');
+ } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+ er = new TypeError('Invalid non-string/buffer chunk');
+ }
+ if (er) {
+ stream.emit('error', er);
+ processNextTick(cb, er);
+ valid = false;
}
+ return valid;
+}
- // emit removeListener for all listeners on all events
- if (arguments.length === 0) {
- for (key in this._events) {
- if (key === 'removeListener') continue;
- this.removeAllListeners(key);
- }
- this.removeAllListeners('removeListener');
- this._events = {};
- return this;
+Writable.prototype.write = function (chunk, encoding, cb) {
+ var state = this._writableState;
+ var ret = false;
+ var isBuf = _isUint8Array(chunk) && !state.objectMode;
+
+ if (isBuf && !Buffer.isBuffer(chunk)) {
+ chunk = _uint8ArrayToBuffer(chunk);
}
- listeners = this._events[type];
+ if (typeof encoding === 'function') {
+ cb = encoding;
+ encoding = null;
+ }
- if (isFunction(listeners)) {
- this.removeListener(type, listeners);
- } else {
- // LIFO order
- while (listeners.length)
- this.removeListener(type, listeners[listeners.length - 1]);
+ if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
+
+ if (typeof cb !== 'function') cb = nop;
+
+ if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
+ state.pendingcb++;
+ ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
}
- delete this._events[type];
- return this;
+ return ret;
};
-EventEmitter.prototype.listeners = function(type) {
- var ret;
- if (!this._events || !this._events[type])
- ret = [];
- else if (isFunction(this._events[type]))
- ret = [this._events[type]];
- else
- ret = this._events[type].slice();
- return ret;
+Writable.prototype.cork = function () {
+ var state = this._writableState;
+
+ state.corked++;
+};
+
+Writable.prototype.uncork = function () {
+ var state = this._writableState;
+
+ if (state.corked) {
+ state.corked--;
+
+ if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
+ }
+};
+
+Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
+ // node::ParseEncoding() requires lower case.
+ if (typeof encoding === 'string') encoding = encoding.toLowerCase();
+ if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
+ this._writableState.defaultEncoding = encoding;
+ return this;
};
-EventEmitter.listenerCount = function(emitter, type) {
- var ret;
- if (!emitter._events || !emitter._events[type])
- ret = 0;
- else if (isFunction(emitter._events[type]))
- ret = 1;
- else
- ret = emitter._events[type].length;
+function decodeChunk(state, chunk, encoding) {
+ if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
+ chunk = Buffer.from(chunk, encoding);
+ }
+ return chunk;
+}
+
+// if we're already writing something, then just put this
+// in the queue, and wait our turn. Otherwise, call _write
+// If we return false, then we need a drain event, so set that flag.
+function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
+ if (!isBuf) {
+ var newChunk = decodeChunk(state, chunk, encoding);
+ if (chunk !== newChunk) {
+ isBuf = true;
+ encoding = 'buffer';
+ chunk = newChunk;
+ }
+ }
+ var len = state.objectMode ? 1 : chunk.length;
+
+ state.length += len;
+
+ var ret = state.length < state.highWaterMark;
+ // we must ensure that previous needDrain will not be reset to false.
+ if (!ret) state.needDrain = true;
+
+ if (state.writing || state.corked) {
+ var last = state.lastBufferedRequest;
+ state.lastBufferedRequest = {
+ chunk: chunk,
+ encoding: encoding,
+ isBuf: isBuf,
+ callback: cb,
+ next: null
+ };
+ if (last) {
+ last.next = state.lastBufferedRequest;
+ } else {
+ state.bufferedRequest = state.lastBufferedRequest;
+ }
+ state.bufferedRequestCount += 1;
+ } else {
+ doWrite(stream, state, false, len, chunk, encoding, cb);
+ }
+
return ret;
-};
-
-function isFunction(arg) {
- return typeof arg === 'function';
-}
-
-function isNumber(arg) {
- return typeof arg === 'number';
}
-function isObject(arg) {
- return typeof arg === 'object' && arg !== null;
+function doWrite(stream, state, writev, len, chunk, encoding, cb) {
+ state.writelen = len;
+ state.writecb = cb;
+ state.writing = true;
+ state.sync = true;
+ if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
+ state.sync = false;
}
-function isUndefined(arg) {
- return arg === void 0;
-}
+function onwriteError(stream, state, sync, er, cb) {
+ --state.pendingcb;
-},{}],12:[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
+ if (sync) {
+ // defer the callback if we are being called synchronously
+ // to avoid piling up things on the stack
+ processNextTick(cb, er);
+ // this can emit finish, and it will always happen
+ // after error
+ processNextTick(finishMaybe, stream, state);
+ stream._writableState.errorEmitted = true;
+ stream.emit('error', er);
+ } else {
+ // the caller expect this to happen before if
+ // it is async
+ cb(er);
+ stream._writableState.errorEmitted = true;
+ stream.emit('error', er);
+ // this can emit finish, but finish must
+ // always follow error
+ finishMaybe(stream, state);
}
}
-},{}],13:[function(require,module,exports){
-module.exports = Array.isArray || function (arr) {
- return Object.prototype.toString.call(arr) == '[object Array]';
-};
+function onwriteStateUpdate(state) {
+ state.writing = false;
+ state.writecb = null;
+ state.length -= state.writelen;
+ state.writelen = 0;
+}
-},{}],14:[function(require,module,exports){
-// shim for using process in browser
+function onwrite(stream, er) {
+ var state = stream._writableState;
+ var sync = state.sync;
+ var cb = state.writecb;
-var process = module.exports = {};
-var queue = [];
-var draining = false;
-var currentQueue;
-var queueIndex = -1;
+ onwriteStateUpdate(state);
-function cleanUpNextTick() {
- draining = false;
- if (currentQueue.length) {
- queue = currentQueue.concat(queue);
- } else {
- queueIndex = -1;
- }
- if (queue.length) {
- drainQueue();
- }
-}
+ if (er) onwriteError(stream, state, sync, er, cb);else {
+ // Check if we're actually ready to finish, but don't emit yet
+ var finished = needFinish(state);
-function drainQueue() {
- if (draining) {
- return;
+ if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
+ clearBuffer(stream, state);
}
- var timeout = setTimeout(cleanUpNextTick);
- draining = true;
- var len = queue.length;
- while(len) {
- currentQueue = queue;
- queue = [];
- while (++queueIndex < len) {
- currentQueue[queueIndex].run();
- }
- queueIndex = -1;
- len = queue.length;
+ if (sync) {
+ /*<replacement>*/
+ asyncWrite(afterWrite, stream, state, finished, cb);
+ /*</replacement>*/
+ } else {
+ afterWrite(stream, state, finished, cb);
}
- currentQueue = null;
- draining = false;
- clearTimeout(timeout);
+ }
}
-process.nextTick = function (fun) {
- var args = new Array(arguments.length - 1);
- if (arguments.length > 1) {
- for (var i = 1; i < arguments.length; i++) {
- args[i - 1] = arguments[i];
- }
- }
- queue.push(new Item(fun, args));
- if (queue.length === 1 && !draining) {
- setTimeout(drainQueue, 0);
- }
-};
-
-// v8 likes predictible objects
-function Item(fun, array) {
- this.fun = fun;
- this.array = array;
+function afterWrite(stream, state, finished, cb) {
+ if (!finished) onwriteDrain(stream, state);
+ state.pendingcb--;
+ cb();
+ finishMaybe(stream, state);
}
-Item.prototype.run = function () {
- this.fun.apply(null, this.array);
-};
-process.title = 'browser';
-process.browser = true;
-process.env = {};
-process.argv = [];
-process.version = ''; // empty string to avoid regexp issues
-process.versions = {};
-function noop() {}
+// Must force callback to be called on nextTick, so that we don't
+// emit 'drain' before the write() consumer gets the 'false' return
+// value, and has a chance to attach a 'drain' listener.
+function onwriteDrain(stream, state) {
+ if (state.length === 0 && state.needDrain) {
+ state.needDrain = false;
+ stream.emit('drain');
+ }
+}
-process.on = noop;
-process.addListener = noop;
-process.once = noop;
-process.off = noop;
-process.removeListener = noop;
-process.removeAllListeners = noop;
-process.emit = noop;
+// if there's something in the buffer waiting, then process it
+function clearBuffer(stream, state) {
+ state.bufferProcessing = true;
+ var entry = state.bufferedRequest;
-process.binding = function (name) {
- throw new Error('process.binding is not supported');
-};
+ if (stream._writev && entry && entry.next) {
+ // Fast case, write everything using _writev()
+ var l = state.bufferedRequestCount;
+ var buffer = new Array(l);
+ var holder = state.corkedRequestsFree;
+ holder.entry = entry;
-// TODO(shtylman)
-process.cwd = function () { return '/' };
-process.chdir = function (dir) {
- throw new Error('process.chdir is not supported');
-};
-process.umask = function() { return 0; };
+ var count = 0;
+ var allBuffers = true;
+ while (entry) {
+ buffer[count] = entry;
+ if (!entry.isBuf) allBuffers = false;
+ entry = entry.next;
+ count += 1;
+ }
+ buffer.allBuffers = allBuffers;
-},{}],15:[function(require,module,exports){
-module.exports = require("./lib/_stream_duplex.js")
+ doWrite(stream, state, true, state.length, buffer, '', holder.finish);
-},{"./lib/_stream_duplex.js":16}],16:[function(require,module,exports){
-(function (process){
-// 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.
+ // doWrite is almost always async, defer these to save a bit of time
+ // as the hot path ends with doWrite
+ state.pendingcb++;
+ state.lastBufferedRequest = null;
+ if (holder.next) {
+ state.corkedRequestsFree = holder.next;
+ holder.next = null;
+ } else {
+ state.corkedRequestsFree = new CorkedRequest(state);
+ }
+ } else {
+ // Slow case, write chunks one-by-one
+ while (entry) {
+ var chunk = entry.chunk;
+ var encoding = entry.encoding;
+ var cb = entry.callback;
+ var len = state.objectMode ? 1 : chunk.length;
-// a duplex stream is just a stream that is both readable and writable.
-// Since JS doesn't have multiple prototypal inheritance, this class
-// prototypally inherits from Readable, and then parasitically from
-// Writable.
+ doWrite(stream, state, false, len, chunk, encoding, cb);
+ entry = entry.next;
+ // if we didn't call the onwrite immediately, then
+ // it means that we need to wait until it does.
+ // also, that means that the chunk and cb are currently
+ // being processed, so move the buffer counter past them.
+ if (state.writing) {
+ break;
+ }
+ }
-module.exports = Duplex;
+ if (entry === null) state.lastBufferedRequest = null;
+ }
-/*<replacement>*/
-var objectKeys = Object.keys || function (obj) {
- var keys = [];
- for (var key in obj) keys.push(key);
- return keys;
+ state.bufferedRequestCount = 0;
+ state.bufferedRequest = entry;
+ state.bufferProcessing = false;
}
-/*</replacement>*/
-
-
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
-var Readable = require('./_stream_readable');
-var Writable = require('./_stream_writable');
-
-util.inherits(Duplex, Readable);
+Writable.prototype._write = function (chunk, encoding, cb) {
+ cb(new Error('_write() is not implemented'));
+};
-forEach(objectKeys(Writable.prototype), function(method) {
- if (!Duplex.prototype[method])
- Duplex.prototype[method] = Writable.prototype[method];
-});
+Writable.prototype._writev = null;
-function Duplex(options) {
- if (!(this instanceof Duplex))
- return new Duplex(options);
+Writable.prototype.end = function (chunk, encoding, cb) {
+ var state = this._writableState;
- Readable.call(this, options);
- Writable.call(this, options);
+ if (typeof chunk === 'function') {
+ cb = chunk;
+ chunk = null;
+ encoding = null;
+ } else if (typeof encoding === 'function') {
+ cb = encoding;
+ encoding = null;
+ }
- if (options && options.readable === false)
- this.readable = false;
+ if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
- if (options && options.writable === false)
- this.writable = false;
+ // .end() fully uncorks
+ if (state.corked) {
+ state.corked = 1;
+ this.uncork();
+ }
- this.allowHalfOpen = true;
- if (options && options.allowHalfOpen === false)
- this.allowHalfOpen = false;
+ // ignore unnecessary end() calls.
+ if (!state.ending && !state.finished) endWritable(this, state, cb);
+};
- this.once('end', onend);
+function needFinish(state) {
+ return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
+}
+function callFinal(stream, state) {
+ stream._final(function (err) {
+ state.pendingcb--;
+ if (err) {
+ stream.emit('error', err);
+ }
+ state.prefinished = true;
+ stream.emit('prefinish');
+ finishMaybe(stream, state);
+ });
+}
+function prefinish(stream, state) {
+ if (!state.prefinished && !state.finalCalled) {
+ if (typeof stream._final === 'function') {
+ state.pendingcb++;
+ state.finalCalled = true;
+ processNextTick(callFinal, stream, state);
+ } else {
+ state.prefinished = true;
+ stream.emit('prefinish');
+ }
+ }
}
-// the no-half-open enforcer
-function onend() {
- // if we allow half-open state, or if the writable side ended,
- // then we're ok.
- if (this.allowHalfOpen || this._writableState.ended)
- return;
-
- // no more data can be written.
- // But allow more writes to happen in this tick.
- process.nextTick(this.end.bind(this));
+function finishMaybe(stream, state) {
+ var need = needFinish(state);
+ if (need) {
+ prefinish(stream, state);
+ if (state.pendingcb === 0) {
+ state.finished = true;
+ stream.emit('finish');
+ }
+ }
+ return need;
}
-function forEach (xs, f) {
- for (var i = 0, l = xs.length; i < l; i++) {
- f(xs[i], i);
+function endWritable(stream, state, cb) {
+ state.ending = true;
+ finishMaybe(stream, state);
+ if (cb) {
+ if (state.finished) processNextTick(cb);else stream.once('finish', cb);
}
+ state.ended = true;
+ stream.writable = false;
}
-}).call(this,require('_process'))
-},{"./_stream_readable":18,"./_stream_writable":20,"_process":14,"core-util-is":21,"inherits":12}],17:[function(require,module,exports){
-// 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.
+function onCorkedFinish(corkReq, state, err) {
+ var entry = corkReq.entry;
+ corkReq.entry = null;
+ while (entry) {
+ var cb = entry.callback;
+ state.pendingcb--;
+ cb(err);
+ entry = entry.next;
+ }
+ if (state.corkedRequestsFree) {
+ state.corkedRequestsFree.next = corkReq;
+ } else {
+ state.corkedRequestsFree = corkReq;
+ }
+}
-// a passthrough stream.
-// basically just the most minimal sort of Transform stream.
-// Every written chunk gets output as-is.
+Object.defineProperty(Writable.prototype, 'destroyed', {
+ get: function () {
+ if (this._writableState === undefined) {
+ return false;
+ }
+ return this._writableState.destroyed;
+ },
+ set: function (value) {
+ // we ignore the value if the stream
+ // has not been initialized yet
+ if (!this._writableState) {
+ return;
+ }
-module.exports = PassThrough;
+ // backward compatibility, the user is explicitly
+ // managing destroyed
+ this._writableState.destroyed = value;
+ }
+});
-var Transform = require('./_stream_transform');
+Writable.prototype.destroy = destroyImpl.destroy;
+Writable.prototype._undestroy = destroyImpl.undestroy;
+Writable.prototype._destroy = function (err, cb) {
+ this.end();
+ cb(err);
+};
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./_stream_duplex":14,"./internal/streams/destroy":20,"./internal/streams/stream":21,"_process":12,"core-util-is":5,"inherits":8,"process-nextick-args":11,"safe-buffer":26,"util-deprecate":29}],19:[function(require,module,exports){
+'use strict';
/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
-util.inherits(PassThrough, Transform);
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-function PassThrough(options) {
- if (!(this instanceof PassThrough))
- return new PassThrough(options);
+var Buffer = require('safe-buffer').Buffer;
+/*</replacement>*/
- Transform.call(this, options);
+function copyBuffer(src, target, offset) {
+ src.copy(target, offset);
}
-PassThrough.prototype._transform = function(chunk, encoding, cb) {
- cb(null, chunk);
-};
-
-},{"./_stream_transform":19,"core-util-is":21,"inherits":12}],18:[function(require,module,exports){
-(function (process){
-// 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.
+module.exports = function () {
+ function BufferList() {
+ _classCallCheck(this, BufferList);
-module.exports = Readable;
+ this.head = null;
+ this.tail = null;
+ this.length = 0;
+ }
-/*<replacement>*/
-var isArray = require('isarray');
-/*</replacement>*/
+ BufferList.prototype.push = function push(v) {
+ var entry = { data: v, next: null };
+ if (this.length > 0) this.tail.next = entry;else this.head = entry;
+ this.tail = entry;
+ ++this.length;
+ };
+ BufferList.prototype.unshift = function unshift(v) {
+ var entry = { data: v, next: this.head };
+ if (this.length === 0) this.tail = entry;
+ this.head = entry;
+ ++this.length;
+ };
-/*<replacement>*/
-var Buffer = require('buffer').Buffer;
-/*</replacement>*/
+ BufferList.prototype.shift = function shift() {
+ if (this.length === 0) return;
+ var ret = this.head.data;
+ if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
+ --this.length;
+ return ret;
+ };
-Readable.ReadableState = ReadableState;
+ BufferList.prototype.clear = function clear() {
+ this.head = this.tail = null;
+ this.length = 0;
+ };
-var EE = require('events').EventEmitter;
+ BufferList.prototype.join = function join(s) {
+ if (this.length === 0) return '';
+ var p = this.head;
+ var ret = '' + p.data;
+ while (p = p.next) {
+ ret += s + p.data;
+ }return ret;
+ };
-/*<replacement>*/
-if (!EE.listenerCount) EE.listenerCount = function(emitter, type) {
- return emitter.listeners(type).length;
-};
-/*</replacement>*/
+ BufferList.prototype.concat = function concat(n) {
+ if (this.length === 0) return Buffer.alloc(0);
+ if (this.length === 1) return this.head.data;
+ var ret = Buffer.allocUnsafe(n >>> 0);
+ var p = this.head;
+ var i = 0;
+ while (p) {
+ copyBuffer(p.data, ret, i);
+ i += p.data.length;
+ p = p.next;
+ }
+ return ret;
+ };
-var Stream = require('stream');
+ return BufferList;
+}();
+},{"safe-buffer":26}],20:[function(require,module,exports){
+'use strict';
/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
-
-var StringDecoder;
-
-/*<replacement>*/
-var debug = require('util');
-if (debug && debug.debuglog) {
- debug = debug.debuglog('stream');
-} else {
- debug = function () {};
-}
+var processNextTick = require('process-nextick-args');
/*</replacement>*/
+// undocumented cb() API, needed for core, not for public API
+function destroy(err, cb) {
+ var _this = this;
-util.inherits(Readable, Stream);
-
-function ReadableState(options, stream) {
- var Duplex = require('./_stream_duplex');
-
- options = options || {};
-
- // the point at which it stops calling _read() to fill the buffer
- // Note: 0 is a valid value, means "don't call _read preemptively ever"
- var hwm = options.highWaterMark;
- var defaultHwm = options.objectMode ? 16 : 16 * 1024;
- this.highWaterMark = (hwm || hwm === 0) ? hwm : defaultHwm;
-
- // cast to ints.
- this.highWaterMark = ~~this.highWaterMark;
+ var readableDestroyed = this._readableState && this._readableState.destroyed;
+ var writableDestroyed = this._writableState && this._writableState.destroyed;
- this.buffer = [];
- this.length = 0;
- this.pipes = null;
- this.pipesCount = 0;
- this.flowing = null;
- this.ended = false;
- this.endEmitted = false;
- this.reading = false;
+ if (readableDestroyed || writableDestroyed) {
+ if (cb) {
+ cb(err);
+ } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
+ processNextTick(emitErrorNT, this, err);
+ }
+ return;
+ }
- // a flag to be able to tell if the onwrite cb is called immediately,
- // or on a later tick. We set this to true at first, because any
- // actions that shouldn't happen until "later" should generally also
- // not happen before the first write call.
- this.sync = true;
+ // we set destroyed to true before firing error callbacks in order
+ // to make it re-entrance safe in case destroy() is called within callbacks
- // whenever we return null, then we set a flag to say
- // that we're awaiting a 'readable' event emission.
- this.needReadable = false;
- this.emittedReadable = false;
- this.readableListening = false;
+ if (this._readableState) {
+ this._readableState.destroyed = true;
+ }
+ // if this is a duplex stream mark the writable part as destroyed as well
+ if (this._writableState) {
+ this._writableState.destroyed = true;
+ }
- // object stream flag. Used to make read(n) ignore n and to
- // make all the buffer merging and length checks go away
- this.objectMode = !!options.objectMode;
+ this._destroy(err || null, function (err) {
+ if (!cb && err) {
+ processNextTick(emitErrorNT, _this, err);
+ if (_this._writableState) {
+ _this._writableState.errorEmitted = true;
+ }
+ } else if (cb) {
+ cb(err);
+ }
+ });
+}
- if (stream instanceof Duplex)
- this.objectMode = this.objectMode || !!options.readableObjectMode;
+function undestroy() {
+ if (this._readableState) {
+ this._readableState.destroyed = false;
+ this._readableState.reading = false;
+ this._readableState.ended = false;
+ this._readableState.endEmitted = false;
+ }
- // Crypto is kind of old and crusty. Historically, its default string
- // encoding is 'binary' so we have to make this configurable.
- // Everything else in the universe uses 'utf8', though.
- this.defaultEncoding = options.defaultEncoding || 'utf8';
+ if (this._writableState) {
+ this._writableState.destroyed = false;
+ this._writableState.ended = false;
+ this._writableState.ending = false;
+ this._writableState.finished = false;
+ this._writableState.errorEmitted = false;
+ }
+}
- // when piping, we only care about 'readable' events that happen
- // after read()ing all the bytes and not getting any pushback.
- this.ranOut = false;
+function emitErrorNT(self, err) {
+ self.emit('error', err);
+}
- // the number of writers that are awaiting a drain event in .pipe()s
- this.awaitDrain = 0;
+module.exports = {
+ destroy: destroy,
+ undestroy: undestroy
+};
+},{"process-nextick-args":11}],21:[function(require,module,exports){
+module.exports = require('events').EventEmitter;
- // if true, a maybeReadMore has been scheduled
- this.readingMore = false;
+},{"events":6}],22:[function(require,module,exports){
+module.exports = require('./readable').PassThrough
- this.decoder = null;
- this.encoding = null;
- if (options.encoding) {
- if (!StringDecoder)
- StringDecoder = require('string_decoder/').StringDecoder;
- this.decoder = new StringDecoder(options.encoding);
- this.encoding = options.encoding;
- }
-}
+},{"./readable":23}],23:[function(require,module,exports){
+exports = module.exports = require('./lib/_stream_readable.js');
+exports.Stream = exports;
+exports.Readable = exports;
+exports.Writable = require('./lib/_stream_writable.js');
+exports.Duplex = require('./lib/_stream_duplex.js');
+exports.Transform = require('./lib/_stream_transform.js');
+exports.PassThrough = require('./lib/_stream_passthrough.js');
-function Readable(options) {
- var Duplex = require('./_stream_duplex');
+},{"./lib/_stream_duplex.js":14,"./lib/_stream_passthrough.js":15,"./lib/_stream_readable.js":16,"./lib/_stream_transform.js":17,"./lib/_stream_writable.js":18}],24:[function(require,module,exports){
+module.exports = require('./readable').Transform
- if (!(this instanceof Readable))
- return new Readable(options);
+},{"./readable":23}],25:[function(require,module,exports){
+module.exports = require('./lib/_stream_writable.js');
- this._readableState = new ReadableState(options, this);
+},{"./lib/_stream_writable.js":18}],26:[function(require,module,exports){
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
- // legacy
- this.readable = true;
+// alternative to using Object.keys for old browsers
+function copyProps (src, dst) {
+ for (var key in src) {
+ dst[key] = src[key]
+ }
+}
+if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
+ module.exports = buffer
+} else {
+ // Copy properties from require('buffer')
+ copyProps(buffer, exports)
+ exports.Buffer = SafeBuffer
+}
- Stream.call(this);
+function SafeBuffer (arg, encodingOrOffset, length) {
+ return Buffer(arg, encodingOrOffset, length)
}
-// Manually shove something into the read() buffer.
-// This returns true if the highWaterMark has not been hit yet,
-// similar to how Writable.write() returns true if you should
-// write() some more.
-Readable.prototype.push = function(chunk, encoding) {
- var state = this._readableState;
+// Copy static methods from Buffer
+copyProps(Buffer, SafeBuffer)
- if (util.isString(chunk) && !state.objectMode) {
- encoding = encoding || state.defaultEncoding;
- if (encoding !== state.encoding) {
- chunk = new Buffer(chunk, encoding);
- encoding = '';
+SafeBuffer.from = function (arg, encodingOrOffset, length) {
+ if (typeof arg === 'number') {
+ throw new TypeError('Argument must not be a number')
+ }
+ return Buffer(arg, encodingOrOffset, length)
+}
+
+SafeBuffer.alloc = function (size, fill, encoding) {
+ if (typeof size !== 'number') {
+ throw new TypeError('Argument must be a number')
+ }
+ var buf = Buffer(size)
+ if (fill !== undefined) {
+ if (typeof encoding === 'string') {
+ buf.fill(fill, encoding)
+ } else {
+ buf.fill(fill)
}
+ } else {
+ buf.fill(0)
}
+ return buf
+}
- return readableAddChunk(this, state, chunk, encoding, false);
-};
+SafeBuffer.allocUnsafe = function (size) {
+ if (typeof size !== 'number') {
+ throw new TypeError('Argument must be a number')
+ }
+ return Buffer(size)
+}
-// Unshift should *always* be something directly out of read()
-Readable.prototype.unshift = function(chunk) {
- var state = this._readableState;
- return readableAddChunk(this, state, chunk, '', true);
-};
+SafeBuffer.allocUnsafeSlow = function (size) {
+ if (typeof size !== 'number') {
+ throw new TypeError('Argument must be a number')
+ }
+ return buffer.SlowBuffer(size)
+}
-function readableAddChunk(stream, state, chunk, encoding, addToFront) {
- var er = chunkInvalid(state, chunk);
- if (er) {
- stream.emit('error', er);
- } else if (util.isNullOrUndefined(chunk)) {
- state.reading = false;
- if (!state.ended)
- onEofChunk(stream, state);
- } else if (state.objectMode || chunk && chunk.length > 0) {
- if (state.ended && !addToFront) {
- var e = new Error('stream.push() after EOF');
- stream.emit('error', e);
- } else if (state.endEmitted && addToFront) {
- var e = new Error('stream.unshift() after end event');
- stream.emit('error', e);
- } else {
- if (state.decoder && !addToFront && !encoding)
- chunk = state.decoder.write(chunk);
+},{"buffer":4}],27:[function(require,module,exports){
+// 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.
- if (!addToFront)
- state.reading = false;
+module.exports = Stream;
- // if we want the data now, just emit it.
- if (state.flowing && state.length === 0 && !state.sync) {
- stream.emit('data', chunk);
- stream.read(0);
- } else {
- // update the buffer info.
- state.length += state.objectMode ? 1 : chunk.length;
- if (addToFront)
- state.buffer.unshift(chunk);
- else
- state.buffer.push(chunk);
+var EE = require('events').EventEmitter;
+var inherits = require('inherits');
- if (state.needReadable)
- emitReadable(stream);
- }
+inherits(Stream, EE);
+Stream.Readable = require('readable-stream/readable.js');
+Stream.Writable = require('readable-stream/writable.js');
+Stream.Duplex = require('readable-stream/duplex.js');
+Stream.Transform = require('readable-stream/transform.js');
+Stream.PassThrough = require('readable-stream/passthrough.js');
- maybeReadMore(stream, state);
- }
- } else if (!addToFront) {
- state.reading = false;
- }
+// Backwards-compat with node 0.4.x
+Stream.Stream = Stream;
- return needMoreData(state);
-}
+// old-style streams. Note that the pipe method (the only relevant
+// part of this class) is overridden in the Readable class.
-// if it's past the high water mark, we can push in some more.
-// Also, if we have no data yet, we can stand some
-// more bytes. This is to work around cases where hwm=0,
-// such as the repl. Also, if the push() triggered a
-// readable event, and the user called read(largeNumber) such that
-// needReadable was set, then we ought to push more, so that another
-// 'readable' event will be triggered.
-function needMoreData(state) {
- return !state.ended &&
- (state.needReadable ||
- state.length < state.highWaterMark ||
- state.length === 0);
+function Stream() {
+ EE.call(this);
}
-// backwards compatibility.
-Readable.prototype.setEncoding = function(enc) {
- if (!StringDecoder)
- StringDecoder = require('string_decoder/').StringDecoder;
- this._readableState.decoder = new StringDecoder(enc);
- this._readableState.encoding = enc;
- return this;
-};
+Stream.prototype.pipe = function(dest, options) {
+ var source = this;
-// Don't raise the hwm > 128MB
-var MAX_HWM = 0x800000;
-function roundUpToNextPowerOf2(n) {
- if (n >= MAX_HWM) {
- n = MAX_HWM;
- } else {
- // Get the next highest power of 2
- n--;
- for (var p = 1; p < 32; p <<= 1) n |= n >> p;
- n++;
+ function ondata(chunk) {
+ if (dest.writable) {
+ if (false === dest.write(chunk) && source.pause) {
+ source.pause();
+ }
+ }
}
- return n;
-}
-
-function howMuchToRead(n, state) {
- if (state.length === 0 && state.ended)
- return 0;
- if (state.objectMode)
- return n === 0 ? 0 : 1;
+ source.on('data', ondata);
- if (isNaN(n) || util.isNull(n)) {
- // only flow one buffer at a time
- if (state.flowing && state.buffer.length)
- return state.buffer[0].length;
- else
- return state.length;
+ function ondrain() {
+ if (source.readable && source.resume) {
+ source.resume();
+ }
}
- if (n <= 0)
- return 0;
+ dest.on('drain', ondrain);
- // If we're asking for more than the target buffer level,
- // then raise the water mark. Bump up to the next highest
- // power of 2, to prevent increasing it excessively in tiny
- // amounts.
- if (n > state.highWaterMark)
- state.highWaterMark = roundUpToNextPowerOf2(n);
-
- // don't have that much. return null, unless we've ended.
- if (n > state.length) {
- if (!state.ended) {
- state.needReadable = true;
- return 0;
- } else
- return state.length;
+ // If the 'end' option is not supplied, dest.end() will be called when
+ // source gets the 'end' or 'close' events. Only dest.end() once.
+ if (!dest._isStdio && (!options || options.end !== false)) {
+ source.on('end', onend);
+ source.on('close', onclose);
}
- return n;
-}
+ var didOnEnd = false;
+ function onend() {
+ if (didOnEnd) return;
+ didOnEnd = true;
-// you can override either this method, or the async _read(n) below.
-Readable.prototype.read = function(n) {
- debug('read', n);
- var state = this._readableState;
- var nOrig = n;
+ dest.end();
+ }
- if (!util.isNumber(n) || n > 0)
- state.emittedReadable = false;
- // if we're doing read(0) to trigger a readable event, but we
- // already have a bunch of data in the buffer, then just trigger
- // the 'readable' event and move on.
- if (n === 0 &&
- state.needReadable &&
- (state.length >= state.highWaterMark || state.ended)) {
- debug('read: emitReadable', state.length, state.ended);
- if (state.length === 0 && state.ended)
- endReadable(this);
- else
- emitReadable(this);
- return null;
- }
+ function onclose() {
+ if (didOnEnd) return;
+ didOnEnd = true;
- n = howMuchToRead(n, state);
+ if (typeof dest.destroy === 'function') dest.destroy();
+ }
- // if we've ended, and we're now clear, then finish it up.
- if (n === 0 && state.ended) {
- if (state.length === 0)
- endReadable(this);
- return null;
+ // don't leave dangling pipes when there are errors.
+ function onerror(er) {
+ cleanup();
+ if (EE.listenerCount(this, 'error') === 0) {
+ throw er; // Unhandled stream error in pipe.
+ }
}
- // All the actual chunk generation logic needs to be
- // *below* the call to _read. The reason is that in certain
- // synthetic stream cases, such as passthrough streams, _read
- // may be a completely synchronous operation which may change
- // the state of the read buffer, providing enough data when
- // before there was *not* enough.
- //
- // So, the steps are:
- // 1. Figure out what the state of things will be after we do
- // a read from the buffer.
- //
- // 2. If that resulting state will trigger a _read, then call _read.
- // Note that this may be asynchronous, or synchronous. Yes, it is
- // deeply ugly to write APIs this way, but that still doesn't mean
- // that the Readable class should behave improperly, as streams are
- // designed to be sync/async agnostic.
- // Take note if the _read call is sync or async (ie, if the read call
- // has returned yet), so that we know whether or not it's safe to emit
- // 'readable' etc.
- //
- // 3. Actually pull the requested chunks out of the buffer and return.
+ source.on('error', onerror);
+ dest.on('error', onerror);
- // if we need a readable event, then we need to do some reading.
- var doRead = state.needReadable;
- debug('need readable', doRead);
+ // remove all the event listeners that were added.
+ function cleanup() {
+ source.removeListener('data', ondata);
+ dest.removeListener('drain', ondrain);
- // if we currently have less than the highWaterMark, then also read some
- if (state.length === 0 || state.length - n < state.highWaterMark) {
- doRead = true;
- debug('length less than watermark', doRead);
- }
+ source.removeListener('end', onend);
+ source.removeListener('close', onclose);
- // however, if we've ended, then there's no point, and if we're already
- // reading, then it's unnecessary.
- if (state.ended || state.reading) {
- doRead = false;
- debug('reading or ended', doRead);
- }
+ source.removeListener('error', onerror);
+ dest.removeListener('error', onerror);
- if (doRead) {
- debug('do read');
- state.reading = true;
- state.sync = true;
- // if the length is currently zero, then we *need* a readable event.
- if (state.length === 0)
- state.needReadable = true;
- // call internal read method
- this._read(state.highWaterMark);
- state.sync = false;
+ source.removeListener('end', cleanup);
+ source.removeListener('close', cleanup);
+
+ dest.removeListener('close', cleanup);
}
- // If _read pushed data synchronously, then `reading` will be false,
- // and we need to re-evaluate how much data we can return to the user.
- if (doRead && !state.reading)
- n = howMuchToRead(nOrig, state);
+ source.on('end', cleanup);
+ source.on('close', cleanup);
- var ret;
- if (n > 0)
- ret = fromList(n, state);
- else
- ret = null;
+ dest.on('close', cleanup);
- if (util.isNull(ret)) {
- state.needReadable = true;
- n = 0;
- }
+ dest.emit('pipe', source);
- state.length -= n;
+ // Allow for unix-like usage: A.pipe(B).pipe(C)
+ return dest;
+};
- // If we have nothing in the buffer, then we want to know
- // as soon as we *do* get something into the buffer.
- if (state.length === 0 && !state.ended)
- state.needReadable = true;
+},{"events":6,"inherits":8,"readable-stream/duplex.js":13,"readable-stream/passthrough.js":22,"readable-stream/readable.js":23,"readable-stream/transform.js":24,"readable-stream/writable.js":25}],28:[function(require,module,exports){
+'use strict';
- // If we tried to read() past the EOF, then emit end on the next tick.
- if (nOrig !== n && state.ended && state.length === 0)
- endReadable(this);
+var Buffer = require('safe-buffer').Buffer;
- if (!util.isNull(ret))
- this.emit('data', ret);
+var isEncoding = Buffer.isEncoding || function (encoding) {
+ encoding = '' + encoding;
+ switch (encoding && encoding.toLowerCase()) {
+ case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
+ return true;
+ default:
+ return false;
+ }
+};
- return ret;
+function _normalizeEncoding(enc) {
+ if (!enc) return 'utf8';
+ var retried;
+ while (true) {
+ switch (enc) {
+ case 'utf8':
+ case 'utf-8':
+ return 'utf8';
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return 'utf16le';
+ case 'latin1':
+ case 'binary':
+ return 'latin1';
+ case 'base64':
+ case 'ascii':
+ case 'hex':
+ return enc;
+ default:
+ if (retried) return; // undefined
+ enc = ('' + enc).toLowerCase();
+ retried = true;
+ }
+ }
};
-function chunkInvalid(state, chunk) {
- var er = null;
- if (!util.isBuffer(chunk) &&
- !util.isString(chunk) &&
- !util.isNullOrUndefined(chunk) &&
- !state.objectMode) {
- er = new TypeError('Invalid non-string/buffer chunk');
+// Do not cache `Buffer.isEncoding` when checking encoding names as some
+// modules monkey-patch it to support additional encodings
+function normalizeEncoding(enc) {
+ var nenc = _normalizeEncoding(enc);
+ if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
+ return nenc || enc;
+}
+
+// StringDecoder provides an interface for efficiently splitting a series of
+// buffers into a series of JS strings without breaking apart multi-byte
+// characters.
+exports.StringDecoder = StringDecoder;
+function StringDecoder(encoding) {
+ this.encoding = normalizeEncoding(encoding);
+ var nb;
+ switch (this.encoding) {
+ case 'utf16le':
+ this.text = utf16Text;
+ this.end = utf16End;
+ nb = 4;
+ break;
+ case 'utf8':
+ this.fillLast = utf8FillLast;
+ nb = 4;
+ break;
+ case 'base64':
+ this.text = base64Text;
+ this.end = base64End;
+ nb = 3;
+ break;
+ default:
+ this.write = simpleWrite;
+ this.end = simpleEnd;
+ return;
}
- return er;
+ this.lastNeed = 0;
+ this.lastTotal = 0;
+ this.lastChar = Buffer.allocUnsafe(nb);
}
+StringDecoder.prototype.write = function (buf) {
+ if (buf.length === 0) return '';
+ var r;
+ var i;
+ if (this.lastNeed) {
+ r = this.fillLast(buf);
+ if (r === undefined) return '';
+ i = this.lastNeed;
+ this.lastNeed = 0;
+ } else {
+ i = 0;
+ }
+ if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
+ return r || '';
+};
+
+StringDecoder.prototype.end = utf8End;
-function onEofChunk(stream, state) {
- if (state.decoder && !state.ended) {
- var chunk = state.decoder.end();
- if (chunk && chunk.length) {
- state.buffer.push(chunk);
- state.length += state.objectMode ? 1 : chunk.length;
+// Returns only complete characters in a Buffer
+StringDecoder.prototype.text = utf8Text;
+
+// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
+StringDecoder.prototype.fillLast = function (buf) {
+ if (this.lastNeed <= buf.length) {
+ buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
+ return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+ }
+ buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
+ this.lastNeed -= buf.length;
+};
+
+// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
+// continuation byte.
+function utf8CheckByte(byte) {
+ if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
+ return -1;
+}
+
+// Checks at most 3 bytes at the end of a Buffer in order to detect an
+// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
+// needed to complete the UTF-8 character (if applicable) are returned.
+function utf8CheckIncomplete(self, buf, i) {
+ var j = buf.length - 1;
+ if (j < i) return 0;
+ var nb = utf8CheckByte(buf[j]);
+ if (nb >= 0) {
+ if (nb > 0) self.lastNeed = nb - 1;
+ return nb;
+ }
+ if (--j < i) return 0;
+ nb = utf8CheckByte(buf[j]);
+ if (nb >= 0) {
+ if (nb > 0) self.lastNeed = nb - 2;
+ return nb;
+ }
+ if (--j < i) return 0;
+ nb = utf8CheckByte(buf[j]);
+ if (nb >= 0) {
+ if (nb > 0) {
+ if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
}
+ return nb;
}
- state.ended = true;
+ return 0;
+}
- // emit 'readable' now to make sure it gets picked up.
- emitReadable(stream);
+// Validates as many continuation bytes for a multi-byte UTF-8 character as
+// needed or are available. If we see a non-continuation byte where we expect
+// one, we "replace" the validated continuation bytes we've seen so far with
+// UTF-8 replacement characters ('\ufffd'), to match v8's UTF-8 decoding
+// behavior. The continuation byte check is included three times in the case
+// where all of the continuation bytes for a character exist in the same buffer.
+// It is also done this way as a slight performance increase instead of using a
+// loop.
+function utf8CheckExtraBytes(self, buf, p) {
+ if ((buf[0] & 0xC0) !== 0x80) {
+ self.lastNeed = 0;
+ return '\ufffd'.repeat(p);
+ }
+ if (self.lastNeed > 1 && buf.length > 1) {
+ if ((buf[1] & 0xC0) !== 0x80) {
+ self.lastNeed = 1;
+ return '\ufffd'.repeat(p + 1);
+ }
+ if (self.lastNeed > 2 && buf.length > 2) {
+ if ((buf[2] & 0xC0) !== 0x80) {
+ self.lastNeed = 2;
+ return '\ufffd'.repeat(p + 2);
+ }
+ }
+ }
}
-// Don't emit readable right away in sync mode, because this can trigger
-// another read() call => stack overflow. This way, it might trigger
-// a nextTick recursion warning, but that's not so bad.
-function emitReadable(stream) {
- var state = stream._readableState;
- state.needReadable = false;
- if (!state.emittedReadable) {
- debug('emitReadable', state.flowing);
- state.emittedReadable = true;
- if (state.sync)
- process.nextTick(function() {
- emitReadable_(stream);
- });
- else
- emitReadable_(stream);
+// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
+function utf8FillLast(buf) {
+ var p = this.lastTotal - this.lastNeed;
+ var r = utf8CheckExtraBytes(this, buf, p);
+ if (r !== undefined) return r;
+ if (this.lastNeed <= buf.length) {
+ buf.copy(this.lastChar, p, 0, this.lastNeed);
+ return this.lastChar.toString(this.encoding, 0, this.lastTotal);
}
+ buf.copy(this.lastChar, p, 0, buf.length);
+ this.lastNeed -= buf.length;
}
-function emitReadable_(stream) {
- debug('emit readable');
- stream.emit('readable');
- flow(stream);
+// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
+// partial character, the character's bytes are buffered until the required
+// number of bytes are available.
+function utf8Text(buf, i) {
+ var total = utf8CheckIncomplete(this, buf, i);
+ if (!this.lastNeed) return buf.toString('utf8', i);
+ this.lastTotal = total;
+ var end = buf.length - (total - this.lastNeed);
+ buf.copy(this.lastChar, 0, end);
+ return buf.toString('utf8', i, end);
}
+// For UTF-8, a replacement character for each buffered byte of a (partial)
+// character needs to be added to the output.
+function utf8End(buf) {
+ var r = buf && buf.length ? this.write(buf) : '';
+ if (this.lastNeed) return r + '\ufffd'.repeat(this.lastTotal - this.lastNeed);
+ return r;
+}
-// at this point, the user has presumably seen the 'readable' event,
-// and called read() to consume some data. that may have triggered
-// in turn another _read(n) call, in which case reading = true if
-// it's in progress.
-// However, if we're not ended, or reading, and the length < hwm,
-// then go ahead and try to read some more preemptively.
-function maybeReadMore(stream, state) {
- if (!state.readingMore) {
- state.readingMore = true;
- process.nextTick(function() {
- maybeReadMore_(stream, state);
- });
+// UTF-16LE typically needs two bytes per character, but even if we have an even
+// number of bytes available, we need to check if we end on a leading/high
+// surrogate. In that case, we need to wait for the next two bytes in order to
+// decode the last character properly.
+function utf16Text(buf, i) {
+ if ((buf.length - i) % 2 === 0) {
+ var r = buf.toString('utf16le', i);
+ if (r) {
+ var c = r.charCodeAt(r.length - 1);
+ if (c >= 0xD800 && c <= 0xDBFF) {
+ this.lastNeed = 2;
+ this.lastTotal = 4;
+ this.lastChar[0] = buf[buf.length - 2];
+ this.lastChar[1] = buf[buf.length - 1];
+ return r.slice(0, -1);
+ }
+ }
+ return r;
}
+ this.lastNeed = 1;
+ this.lastTotal = 2;
+ this.lastChar[0] = buf[buf.length - 1];
+ return buf.toString('utf16le', i, buf.length - 1);
}
-function maybeReadMore_(stream, state) {
- var len = state.length;
- while (!state.reading && !state.flowing && !state.ended &&
- state.length < state.highWaterMark) {
- debug('maybeReadMore read 0');
- stream.read(0);
- if (len === state.length)
- // didn't get any data, stop spinning.
- break;
- else
- len = state.length;
+// For UTF-16LE we do not explicitly append special replacement characters if we
+// end on a partial character, we simply let v8 handle that.
+function utf16End(buf) {
+ var r = buf && buf.length ? this.write(buf) : '';
+ if (this.lastNeed) {
+ var end = this.lastTotal - this.lastNeed;
+ return r + this.lastChar.toString('utf16le', 0, end);
}
- state.readingMore = false;
+ return r;
}
-// abstract method. to be overridden in specific implementation classes.
-// call cb(er, data) where data is <= n in length.
-// for virtual (non-string, non-buffer) streams, "length" is somewhat
-// arbitrary, and perhaps not very meaningful.
-Readable.prototype._read = function(n) {
- this.emit('error', new Error('not implemented'));
-};
+function base64Text(buf, i) {
+ var n = (buf.length - i) % 3;
+ if (n === 0) return buf.toString('base64', i);
+ this.lastNeed = 3 - n;
+ this.lastTotal = 3;
+ if (n === 1) {
+ this.lastChar[0] = buf[buf.length - 1];
+ } else {
+ this.lastChar[0] = buf[buf.length - 2];
+ this.lastChar[1] = buf[buf.length - 1];
+ }
+ return buf.toString('base64', i, buf.length - n);
+}
-Readable.prototype.pipe = function(dest, pipeOpts) {
- var src = this;
- var state = this._readableState;
+function base64End(buf) {
+ var r = buf && buf.length ? this.write(buf) : '';
+ if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
+ return r;
+}
- switch (state.pipesCount) {
- case 0:
- state.pipes = dest;
- break;
- case 1:
- state.pipes = [state.pipes, dest];
- break;
- default:
- state.pipes.push(dest);
- break;
- }
- state.pipesCount += 1;
- debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
+// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
+function simpleWrite(buf) {
+ return buf.toString(this.encoding);
+}
- var doEnd = (!pipeOpts || pipeOpts.end !== false) &&
- dest !== process.stdout &&
- dest !== process.stderr;
+function simpleEnd(buf) {
+ return buf && buf.length ? this.write(buf) : '';
+}
+},{"safe-buffer":26}],29:[function(require,module,exports){
+(function (global){
- var endFn = doEnd ? onend : cleanup;
- if (state.endEmitted)
- process.nextTick(endFn);
- else
- src.once('end', endFn);
+/**
+ * Module exports.
+ */
- dest.on('unpipe', onunpipe);
- function onunpipe(readable) {
- debug('onunpipe');
- if (readable === src) {
- cleanup();
- }
+module.exports = deprecate;
+
+/**
+ * Mark that a method should not be used.
+ * Returns a modified function which warns once by default.
+ *
+ * If `localStorage.noDeprecation = true` is set, then it is a no-op.
+ *
+ * If `localStorage.throwDeprecation = true` is set, then deprecated functions
+ * will throw an Error when invoked.
+ *
+ * If `localStorage.traceDeprecation = true` is set, then deprecated functions
+ * will invoke `console.trace()` instead of `console.error()`.
+ *
+ * @param {Function} fn - the function to deprecate
+ * @param {String} msg - the string to print to the console when `fn` is invoked
+ * @returns {Function} a new "deprecated" version of `fn`
+ * @api public
+ */
+
+function deprecate (fn, msg) {
+ if (config('noDeprecation')) {
+ return fn;
}
- function onend() {
- debug('onend');
- dest.end();
+ var warned = false;
+ function deprecated() {
+ if (!warned) {
+ if (config('throwDeprecation')) {
+ throw new Error(msg);
+ } else if (config('traceDeprecation')) {
+ console.trace(msg);
+ } else {
+ console.warn(msg);
+ }
+ warned = true;
+ }
+ return fn.apply(this, arguments);
}
- // when the dest drains, it reduces the awaitDrain counter
- // on the source. This would be more elegant with a .once()
- // handler in flow(), but adding and removing repeatedly is
- // too slow.
- var ondrain = pipeOnDrain(src);
- dest.on('drain', ondrain);
+ return deprecated;
+}
- function cleanup() {
- debug('cleanup');
- // cleanup event handlers once the pipe is broken
- dest.removeListener('close', onclose);
- dest.removeListener('finish', onfinish);
- dest.removeListener('drain', ondrain);
- dest.removeListener('error', onerror);
- dest.removeListener('unpipe', onunpipe);
- src.removeListener('end', onend);
- src.removeListener('end', cleanup);
- src.removeListener('data', ondata);
+/**
+ * Checks `localStorage` for boolean values for the given `name`.
+ *
+ * @param {String} name
+ * @returns {Boolean}
+ * @api private
+ */
- // if the reader is waiting for a drain event from this
- // specific writer, then it would cause it to never start
- // flowing again.
- // So, if this is awaiting a drain, then we just call it now.
- // If we don't know, then assume that we are waiting for one.
- if (state.awaitDrain &&
- (!dest._writableState || dest._writableState.needDrain))
- ondrain();
+function config (name) {
+ // accessing global.localStorage can trigger a DOMException in sandboxed iframes
+ try {
+ if (!global.localStorage) return false;
+ } catch (_) {
+ return false;
+ }
+ var val = global.localStorage[name];
+ if (null == val) return false;
+ return String(val).toLowerCase() === 'true';
+}
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],30:[function(require,module,exports){
+arguments[4][8][0].apply(exports,arguments)
+},{"dup":8}],31:[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';
+}
+},{}],32:[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(' ');
}
- src.on('data', ondata);
- function ondata(chunk) {
- debug('ondata');
- var ret = dest.write(chunk);
- if (false === ret) {
- debug('false write response, pause',
- src._readableState.awaitDrain);
- src._readableState.awaitDrain++;
- src.pause();
+ 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);
}
}
-
- // if the dest has an error, then stop piping into it.
- // however, don't suppress the throwing behavior for this.
- function onerror(er) {
- debug('onerror', er);
- unpipe();
- dest.removeListener('error', onerror);
- if (EE.listenerCount(dest, 'error') === 0)
- dest.emit('error', er);
- }
- // This is a brutally ugly hack to make sure that our error handler
- // is attached before any userland ones. NEVER DO THIS.
- if (!dest._events || !dest._events.error)
- dest.on('error', onerror);
- else if (isArray(dest._events.error))
- dest._events.error.unshift(onerror);
- else
- dest._events.error = [onerror, dest._events.error];
-
+ return str;
+};
- // Both close and finish should trigger unpipe, but only once.
- function onclose() {
- dest.removeListener('finish', onfinish);
- unpipe();
- }
- dest.once('close', onclose);
- function onfinish() {
- debug('onfinish');
- dest.removeListener('close', onclose);
- unpipe();
+// 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);
+ };
}
- dest.once('finish', onfinish);
- function unpipe() {
- debug('unpipe');
- src.unpipe(dest);
+ if (process.noDeprecation === true) {
+ return fn;
}
- // tell the dest that it's being piped to
- dest.emit('pipe', src);
-
- // start the flow if it hasn't been started already.
- if (!state.flowing) {
- debug('pipe resume');
- src.resume();
+ 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 dest;
+ return deprecated;
};
-function pipeOnDrain(src) {
- return function() {
- var state = src._readableState;
- debug('pipeOnDrain', state.awaitDrain);
- if (state.awaitDrain)
- state.awaitDrain--;
- if (state.awaitDrain === 0 && EE.listenerCount(src, 'data')) {
- state.flowing = true;
- flow(src);
+
+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;
-Readable.prototype.unpipe = function(dest) {
- var state = this._readableState;
+// 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]
+};
- // if we're not piping anywhere, then do nothing.
- if (state.pipesCount === 0)
- return this;
+// 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'
+};
- // just one destination. most common case.
- if (state.pipesCount === 1) {
- // passed in one, but it's not the right one.
- if (dest && dest !== state.pipes)
- return this;
- if (!dest)
- dest = state.pipes;
+function stylizeWithColor(str, styleType) {
+ var style = inspect.styles[styleType];
- // got a match.
- state.pipes = null;
- state.pipesCount = 0;
- state.flowing = false;
- if (dest)
- dest.emit('unpipe', this);
- return this;
+ if (style) {
+ return '\u001b[' + inspect.colors[style][0] + 'm' + str +
+ '\u001b[' + inspect.colors[style][1] + 'm';
+ } else {
+ return str;
}
+}
- // slow case. multiple pipe destinations.
-
- if (!dest) {
- // remove all.
- var dests = state.pipes;
- var len = state.pipesCount;
- state.pipes = null;
- state.pipesCount = 0;
- state.flowing = false;
- for (var i = 0; i < len; i++)
- dests[i].emit('unpipe', this);
- return this;
- }
+function stylizeNoColor(str, styleType) {
+ return str;
+}
- // try to find the right one.
- var i = indexOf(state.pipes, dest);
- if (i === -1)
- return this;
- state.pipes.splice(i, 1);
- state.pipesCount -= 1;
- if (state.pipesCount === 1)
- state.pipes = state.pipes[0];
+function arrayToHash(array) {
+ var hash = {};
- dest.emit('unpipe', this);
+ array.forEach(function(val, idx) {
+ hash[val] = true;
+ });
- return this;
-};
+ return hash;
+}
-// set up data events if they are asked for
-// Ensure readable listeners eventually get something
-Readable.prototype.on = function(ev, fn) {
- var res = Stream.prototype.on.call(this, ev, fn);
- // If listening to data, and it has not explicitly been paused,
- // then call resume to start the flow of data on the next tick.
- if (ev === 'data' && false !== this._readableState.flowing) {
- this.resume();
+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;
}
- if (ev === 'readable' && this.readable) {
- var state = this._readableState;
- if (!state.readableListening) {
- state.readableListening = true;
- state.emittedReadable = false;
- state.needReadable = true;
- if (!state.reading) {
- var self = this;
- process.nextTick(function() {
- debug('readable nexttick read 0');
- self.read(0);
- });
- } else if (state.length) {
- emitReadable(this, state);
- }
- }
+ // Primitive types cannot have properties
+ var primitive = formatPrimitive(ctx, value);
+ if (primitive) {
+ return primitive;
}
- return res;
-};
-Readable.prototype.addListener = Readable.prototype.on;
+ // Look up the keys of the object.
+ var keys = Object.keys(value);
+ var visibleKeys = arrayToHash(keys);
-// pause() and resume() are remnants of the legacy readable stream API
-// If the user uses them, then switch into old mode.
-Readable.prototype.resume = function() {
- var state = this._readableState;
- if (!state.flowing) {
- debug('resume');
- state.flowing = true;
- if (!state.reading) {
- debug('resume read 0');
- this.read(0);
- }
- resume(this, state);
+ if (ctx.showHidden) {
+ keys = Object.getOwnPropertyNames(value);
}
- return this;
-};
-function resume(stream, state) {
- if (!state.resumeScheduled) {
- state.resumeScheduled = true;
- process.nextTick(function() {
- resume_(stream, state);
- });
+ // 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);
}
-}
-function resume_(stream, state) {
- state.resumeScheduled = false;
- stream.emit('resume');
- flow(stream);
- if (state.flowing && !state.reading)
- stream.read(0);
-}
+ // 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);
+ }
+ }
-Readable.prototype.pause = function() {
- debug('call pause flowing=%j', this._readableState.flowing);
- if (false !== this._readableState.flowing) {
- debug('pause');
- this._readableState.flowing = false;
- this.emit('pause');
+ var base = '', array = false, braces = ['{', '}'];
+
+ // Make Array say that they are Array
+ if (isArray(value)) {
+ array = true;
+ braces = ['[', ']'];
}
- return this;
-};
-function flow(stream) {
- var state = stream._readableState;
- debug('flow', state.flowing);
- if (state.flowing) {
- do {
- var chunk = stream.read();
- } while (null !== chunk && state.flowing);
+ // Make functions say that they are functions
+ if (isFunction(value)) {
+ var n = value.name ? ': ' + value.name : '';
+ base = ' [Function' + n + ']';
}
-}
-// wrap an old-style stream as the async data source.
-// This is *not* part of the readable stream interface.
-// It is an ugly unfortunate mess of history.
-Readable.prototype.wrap = function(stream) {
- var state = this._readableState;
- var paused = false;
+ // Make RegExps say that they are RegExps
+ if (isRegExp(value)) {
+ base = ' ' + RegExp.prototype.toString.call(value);
+ }
- var self = this;
- stream.on('end', function() {
- debug('wrapped end');
- if (state.decoder && !state.ended) {
- var chunk = state.decoder.end();
- if (chunk && chunk.length)
- self.push(chunk);
- }
+ // Make dates with properties first say the date
+ if (isDate(value)) {
+ base = ' ' + Date.prototype.toUTCString.call(value);
+ }
- self.push(null);
- });
+ // Make error with message first say the error
+ if (isError(value)) {
+ base = ' ' + formatError(value);
+ }
- stream.on('data', function(chunk) {
- debug('wrapped data');
- if (state.decoder)
- chunk = state.decoder.write(chunk);
- if (!chunk || !state.objectMode && !chunk.length)
- return;
+ if (keys.length === 0 && (!array || value.length == 0)) {
+ return braces[0] + base + braces[1];
+ }
- var ret = self.push(chunk);
- if (!ret) {
- paused = true;
- stream.pause();
+ if (recurseTimes < 0) {
+ if (isRegExp(value)) {
+ return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
+ } else {
+ return ctx.stylize('[Object]', 'special');
}
- });
+ }
- // proxy all the other methods.
- // important when wrapping filters and duplexes.
- for (var i in stream) {
- if (util.isFunction(stream[i]) && util.isUndefined(this[i])) {
- this[i] = function(method) { return function() {
- return stream[method].apply(stream, arguments);
- }}(i);
- }
+ 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);
+ });
}
- // proxy certain important events.
- var events = ['error', 'close', 'destroy', 'pause', 'resume'];
- forEach(events, function(ev) {
- stream.on(ev, self.emit.bind(self, ev));
- });
+ ctx.seen.pop();
- // when we try to consume some more bytes, simply unpause the
- // underlying stream.
- self._read = function(n) {
- debug('wrapped _read', n);
- if (paused) {
- paused = false;
- stream.resume();
- }
- };
+ return reduceToSingleString(output, base, braces);
+}
- return self;
-};
+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');
+}
-// exposed for testing purposes only.
-Readable._fromList = fromList;
+function formatError(value) {
+ return '[' + Error.prototype.toString.call(value) + ']';
+}
-// Pluck off n bytes from an array of buffers.
-// Length is the combined lengths of all the buffers in the list.
-function fromList(n, state) {
- var list = state.buffer;
- var length = state.length;
- var stringMode = !!state.decoder;
- var objectMode = !!state.objectMode;
- var ret;
- // nothing in the list, definitely empty.
- if (list.length === 0)
- return null;
+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+$/)) {
+ output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
+ key, true));
+ }
+ });
+ return output;
+}
- if (length === 0)
- ret = null;
- else if (objectMode)
- ret = list.shift();
- else if (!n || n >= length) {
- // read it all, truncate the array.
- if (stringMode)
- ret = list.join('');
- else
- ret = Buffer.concat(list, length);
- list.length = 0;
+
+function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
+ var name, str, desc;
+ desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
+ if (desc.get) {
+ if (desc.set) {
+ str = ctx.stylize('[Getter/Setter]', 'special');
+ } else {
+ str = ctx.stylize('[Getter]', 'special');
+ }
} else {
- // read just some of it.
- if (n < list[0].length) {
- // just take a part of the first list item.
- // slice is the same for buffers and strings.
- var buf = list[0];
- ret = buf.slice(0, n);
- list[0] = buf.slice(n);
- } else if (n === list[0].length) {
- // first list is a perfect match
- ret = list.shift();
+ if (desc.set) {
+ str = ctx.stylize('[Setter]', 'special');
+ }
+ }
+ if (!hasOwnProperty(visibleKeys, key)) {
+ name = '[' + key + ']';
+ }
+ if (!str) {
+ if (ctx.seen.indexOf(desc.value) < 0) {
+ if (isNull(recurseTimes)) {
+ str = formatValue(ctx, desc.value, null);
+ } else {
+ str = formatValue(ctx, desc.value, recurseTimes - 1);
+ }
+ if (str.indexOf('\n') > -1) {
+ if (array) {
+ str = str.split('\n').map(function(line) {
+ return ' ' + line;
+ }).join('\n').substr(2);
+ } else {
+ str = '\n' + str.split('\n').map(function(line) {
+ return ' ' + line;
+ }).join('\n');
+ }
+ }
} else {
- // complex case.
- // we have enough to cover it, but it spans past the first buffer.
- if (stringMode)
- ret = '';
- else
- ret = new Buffer(n);
+ str = ctx.stylize('[Circular]', 'special');
+ }
+ }
+ if (isUndefined(name)) {
+ if (array && key.match(/^\d+$/)) {
+ 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');
+ }
+ }
- var c = 0;
- for (var i = 0, l = list.length; i < l && c < n; i++) {
- var buf = list[0];
- var cpy = Math.min(n - c, buf.length);
+ return name + ': ' + str;
+}
- if (stringMode)
- ret += buf.slice(0, cpy);
- else
- buf.copy(ret, c, 0, cpy);
- if (cpy < buf.length)
- list[0] = buf.slice(cpy);
- else
- list.shift();
+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);
- c += cpy;
- }
- }
+ if (length > 60) {
+ return braces[0] +
+ (base === '' ? '' : base + '\n ') +
+ ' ' +
+ output.join(',\n ') +
+ ' ' +
+ braces[1];
}
- return ret;
+ return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}
-function endReadable(stream) {
- var state = stream._readableState;
- // If we get here before consuming all the bytes, then that is a
- // bug in node. Should never happen.
- if (state.length > 0)
- throw new Error('endReadable called on non-empty stream');
+// 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;
- if (!state.endEmitted) {
- state.ended = true;
- process.nextTick(function() {
- // Check that we didn't get one last unshift.
- if (!state.endEmitted && state.length === 0) {
- state.endEmitted = true;
- stream.readable = false;
- stream.emit('end');
- }
- });
- }
+function isBoolean(arg) {
+ return typeof arg === 'boolean';
}
+exports.isBoolean = isBoolean;
-function forEach (xs, f) {
- for (var i = 0, l = xs.length; i < l; i++) {
- f(xs[i], i);
- }
+function isNull(arg) {
+ return arg === null;
}
+exports.isNull = isNull;
-function indexOf (xs, x) {
- for (var i = 0, l = xs.length; i < l; i++) {
- if (xs[i] === x) return i;
- }
- return -1;
+function isNullOrUndefined(arg) {
+ return arg == null;
}
+exports.isNullOrUndefined = isNullOrUndefined;
-}).call(this,require('_process'))
-},{"./_stream_duplex":16,"_process":14,"buffer":7,"core-util-is":21,"events":11,"inherits":12,"isarray":13,"stream":26,"string_decoder/":27,"util":6}],19:[function(require,module,exports){
-// 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.
+function isNumber(arg) {
+ return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
+function isString(arg) {
+ return typeof arg === 'string';
+}
+exports.isString = isString;
-// a transform stream is a readable/writable stream where you do
-// something with the data. Sometimes it's called a "filter",
-// but that's not a great name for it, since that implies a thing where
-// some bits pass through, and others are simply ignored. (That would
-// be a valid example of a transform, of course.)
-//
-// While the output is causally related to the input, it's not a
-// necessarily symmetric or synchronous transformation. For example,
-// a zlib stream might take multiple plain-text writes(), and then
-// emit a single compressed chunk some time in the future.
-//
-// Here's how this works:
-//
-// The Transform stream has all the aspects of the readable and writable
-// stream classes. When you write(chunk), that calls _write(chunk,cb)
-// internally, and returns false if there's a lot of pending writes
-// buffered up. When you call read(), that calls _read(n) until
-// there's enough pending readable data buffered up.
-//
-// In a transform stream, the written data is placed in a buffer. When
-// _read(n) is called, it transforms the queued up data, calling the
-// buffered _write cb's as it consumes chunks. If consuming a single
-// written chunk would result in multiple output chunks, then the first
-// outputted bit calls the readcb, and subsequent chunks just go into
-// the read buffer, and will cause it to emit 'readable' if necessary.
-//
-// This way, back-pressure is actually determined by the reading side,
-// since _read has to be called to start processing a new chunk. However,
-// a pathological inflate type of transform can cause excessive buffering
-// here. For example, imagine a stream where every byte of input is
-// interpreted as an integer from 0-255, and then results in that many
-// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in
-// 1kb of data being output. In this case, you could write a very small
-// amount of input, and end up with a very large amount of output. In
-// such a pathological inflating mechanism, there'd be no way to tell
-// the system to stop doing the transform. A single 4MB write could
-// cause the system to run out of memory.
-//
-// However, even in such a pathological case, only a single written chunk
-// would be consumed, and then the rest would wait (un-transformed) until
-// the results of the previous transformed chunk were consumed.
+function isSymbol(arg) {
+ return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
-module.exports = Transform;
+function isUndefined(arg) {
+ return arg === void 0;
+}
+exports.isUndefined = isUndefined;
-var Duplex = require('./_stream_duplex');
+function isRegExp(re) {
+ return isObject(re) && objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+function isObject(arg) {
+ return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
-util.inherits(Transform, Duplex);
+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 TransformState(options, stream) {
- this.afterTransform = function(er, data) {
- return afterTransform(stream, er, data);
- };
+function isFunction(arg) {
+ return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
- this.needTransform = false;
- this.transforming = false;
- this.writecb = null;
- this.writechunk = null;
+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;
-function afterTransform(stream, er, data) {
- var ts = stream._transformState;
- ts.transforming = false;
+exports.isBuffer = require('./support/isBuffer');
- var cb = ts.writecb;
+function objectToString(o) {
+ return Object.prototype.toString.call(o);
+}
- if (!cb)
- return stream.emit('error', new Error('no writecb in Transform class'));
- ts.writechunk = null;
- ts.writecb = null;
+function pad(n) {
+ return n < 10 ? '0' + n.toString(10) : n.toString(10);
+}
- if (!util.isNullOrUndefined(data))
- stream.push(data);
- if (cb)
- cb(er);
+var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
+ 'Oct', 'Nov', 'Dec'];
- var rs = stream._readableState;
- rs.reading = false;
- if (rs.needReadable || rs.length < rs.highWaterMark) {
- stream._read(rs.highWaterMark);
- }
+// 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(' ');
}
-function Transform(options) {
- if (!(this instanceof Transform))
- return new Transform(options);
+// 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));
+};
- Duplex.call(this, options);
- this._transformState = new TransformState(options, this);
+/**
+ * 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');
- // when the writable side finishes, then flush out anything remaining.
- var stream = this;
+exports._extend = function(origin, add) {
+ // Don't do anything if add isn't an object
+ if (!add || !isObject(add)) return origin;
- // start out asking for a readable event once data is transformed.
- this._readableState.needReadable = true;
+ var keys = Object.keys(add);
+ var i = keys.length;
+ while (i--) {
+ origin[keys[i]] = add[keys[i]];
+ }
+ return origin;
+};
- // we have implemented the _read method, and done the other things
- // that Readable wants before the first _read call, so unset the
- // sync guard flag.
- this._readableState.sync = false;
+function hasOwnProperty(obj, prop) {
+ return Object.prototype.hasOwnProperty.call(obj, prop);
+}
- this.once('prefinish', function() {
- if (util.isFunction(this._flush))
- this._flush(function(er) {
- done(stream, er);
- });
- else
- done(stream);
- });
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./support/isBuffer":31,"_process":12,"inherits":30}],33:[function(require,module,exports){
+module.exports = {
+ base58: require('bs58'),
+ bitcoin: require('bitcoinjs-lib'),
+ ecurve: require('ecurve'),
+ BigInteger: require('bigi')
}
-Transform.prototype.push = function(chunk, encoding) {
- this._transformState.needTransform = false;
- return Duplex.prototype.push.call(this, chunk, encoding);
-};
+},{"bigi":37,"bitcoinjs-lib":50,"bs58":79,"ecurve":89}],34:[function(require,module,exports){
+// base-x encoding
+// Forked from https://github.com/cryptocoinjs/bs58
+// Originally written by Mike Hearn for BitcoinJ
+// Copyright (c) 2011 Google Inc
+// Ported to JavaScript by Stefan Thomas
+// Merged Buffer refactorings from base58-native by Stephen Pair
+// Copyright (c) 2013 BitPay Inc
-// This is the part where you do stuff!
-// override this function in implementation classes.
-// 'chunk' is an input chunk.
-//
-// Call `push(newChunk)` to pass along transformed output
-// to the readable side. You may call 'push' zero or more times.
-//
-// Call `cb(err)` when you are done with this chunk. If you pass
-// an error, then that'll put the hurt on the whole operation. If you
-// never call cb(), then you'll never get another chunk.
-Transform.prototype._transform = function(chunk, encoding, cb) {
- throw new Error('not implemented');
-};
+var Buffer = require('safe-buffer').Buffer
-Transform.prototype._write = function(chunk, encoding, cb) {
- var ts = this._transformState;
- ts.writecb = cb;
- ts.writechunk = chunk;
- ts.writeencoding = encoding;
- if (!ts.transforming) {
- var rs = this._readableState;
- if (ts.needTransform ||
- rs.needReadable ||
- rs.length < rs.highWaterMark)
- this._read(rs.highWaterMark);
- }
-};
+module.exports = function base (ALPHABET) {
+ var ALPHABET_MAP = {}
+ var BASE = ALPHABET.length
+ var LEADER = ALPHABET.charAt(0)
-// Doesn't matter what the args are here.
-// _transform does all the work.
-// That we got here means that the readable side wants more data.
-Transform.prototype._read = function(n) {
- var ts = this._transformState;
+ // pre-compute lookup table
+ for (var z = 0; z < ALPHABET.length; z++) {
+ var x = ALPHABET.charAt(z)
- if (!util.isNull(ts.writechunk) && ts.writecb && !ts.transforming) {
- ts.transforming = true;
- this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
- } else {
- // mark that we need a transform, so that any data that comes in
- // will get processed, now that we've asked for it.
- ts.needTransform = true;
+ if (ALPHABET_MAP[x] !== undefined) throw new TypeError(x + ' is ambiguous')
+ ALPHABET_MAP[x] = z
}
-};
-
-function done(stream, er) {
- if (er)
- return stream.emit('error', er);
+ function encode (source) {
+ if (source.length === 0) return ''
- // if there's nothing in the write buffer, then that means
- // that nothing more will ever be provided
- var ws = stream._writableState;
- var ts = stream._transformState;
+ var digits = [0]
+ for (var i = 0; i < source.length; ++i) {
+ for (var j = 0, carry = source[i]; j < digits.length; ++j) {
+ carry += digits[j] << 8
+ digits[j] = carry % BASE
+ carry = (carry / BASE) | 0
+ }
- if (ws.length)
- throw new Error('calling transform done when ws.length != 0');
+ while (carry > 0) {
+ digits.push(carry % BASE)
+ carry = (carry / BASE) | 0
+ }
+ }
- if (ts.transforming)
- throw new Error('calling transform done when still transforming');
+ var string = ''
- return stream.push(null);
-}
+ // deal with leading zeros
+ for (var k = 0; source[k] === 0 && k < source.length - 1; ++k) string += ALPHABET[0]
+ // convert digits to a string
+ for (var q = digits.length - 1; q >= 0; --q) string += ALPHABET[digits[q]]
-},{"./_stream_duplex":16,"core-util-is":21,"inherits":12}],20:[function(require,module,exports){
-(function (process){
-// 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.
+ return string
+ }
-// A bit simpler than readable streams.
-// Implement an async ._write(chunk, cb), and it'll handle all
-// the drain event emission and buffering.
+ function decodeUnsafe (string) {
+ if (string.length === 0) return Buffer.allocUnsafe(0)
-module.exports = Writable;
+ var bytes = [0]
+ for (var i = 0; i < string.length; i++) {
+ var value = ALPHABET_MAP[string[i]]
+ if (value === undefined) return
-/*<replacement>*/
-var Buffer = require('buffer').Buffer;
-/*</replacement>*/
+ for (var j = 0, carry = value; j < bytes.length; ++j) {
+ carry += bytes[j] * BASE
+ bytes[j] = carry & 0xff
+ carry >>= 8
+ }
-Writable.WritableState = WritableState;
+ while (carry > 0) {
+ bytes.push(carry & 0xff)
+ carry >>= 8
+ }
+ }
+ // deal with leading zeros
+ for (var k = 0; string[k] === LEADER && k < string.length - 1; ++k) {
+ bytes.push(0)
+ }
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+ return Buffer.from(bytes.reverse())
+ }
-var Stream = require('stream');
+ function decode (string) {
+ var buffer = decodeUnsafe(string)
+ if (buffer) return buffer
-util.inherits(Writable, Stream);
+ throw new Error('Non-base' + BASE + ' character')
+ }
-function WriteReq(chunk, encoding, cb) {
- this.chunk = chunk;
- this.encoding = encoding;
- this.callback = cb;
+ return {
+ encode: encode,
+ decodeUnsafe: decodeUnsafe,
+ decode: decode
+ }
}
-function WritableState(options, stream) {
- var Duplex = require('./_stream_duplex');
-
- options = options || {};
+},{"safe-buffer":98}],35:[function(require,module,exports){
+// (public) Constructor
+function BigInteger(a, b, c) {
+ if (!(this instanceof BigInteger))
+ return new BigInteger(a, b, c)
- // the point at which write() starts returning false
- // Note: 0 is a valid value, means that we always return false if
- // the entire buffer is not flushed immediately on write()
- var hwm = options.highWaterMark;
- var defaultHwm = options.objectMode ? 16 : 16 * 1024;
- this.highWaterMark = (hwm || hwm === 0) ? hwm : defaultHwm;
+ 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)
+ }
+}
- // object stream flag to indicate whether or not this stream
- // contains buffers or objects.
- this.objectMode = !!options.objectMode;
+var proto = BigInteger.prototype
- if (stream instanceof Duplex)
- this.objectMode = this.objectMode || !!options.writableObjectMode;
+// 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)
+}
- // cast to ints.
- this.highWaterMark = ~~this.highWaterMark;
+// Bits per digit
+var dbits
- this.needDrain = false;
- // at the start of calling end()
- this.ending = false;
- // when end() has been called, and returned
- this.ended = false;
- // when 'finish' is emitted
- this.finished = false;
+// 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.
- // should we decode strings into buffers before passing to _write?
- // this is here so that some node-core streams can optimize string
- // handling at a lower level.
- var noDecode = options.decodeStrings === false;
- this.decodeStrings = !noDecode;
+// 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
+}
- // Crypto is kind of old and crusty. Historically, its default string
- // encoding is 'binary' so we have to make this configurable.
- // Everything else in the universe uses 'utf8', though.
- this.defaultEncoding = options.defaultEncoding || 'utf8';
+// wtf?
+BigInteger.prototype.am = am1
+dbits = 26
- // not an actual buffer we keep track of, but a measurement
- // of how much we're waiting to get pushed to some underlying
- // socket or file.
- this.length = 0;
+BigInteger.prototype.DB = dbits
+BigInteger.prototype.DM = ((1 << dbits) - 1)
+var DV = BigInteger.prototype.DV = (1 << dbits)
- // a flag to see when we're in the middle of a write.
- this.writing = false;
+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
- // when true all writes will be buffered until .uncork() call
- this.corked = 0;
+// 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
- // a flag to be able to tell if the onwrite cb is called immediately,
- // or on a later tick. We set this to true at first, because any
- // actions that shouldn't happen until "later" should generally also
- // not happen before the first write call.
- this.sync = true;
+function int2char(n) {
+ return BI_RM.charAt(n)
+}
- // a flag to know if we're processing previously buffered items, which
- // may call the _write() callback in the same tick, so that we don't
- // end up in an overlapped onwrite situation.
- this.bufferProcessing = false;
+function intAt(s, i) {
+ var c = BI_RC[s.charCodeAt(i)]
+ return (c == null) ? -1 : c
+}
- // the callback that's passed to _write(chunk,cb)
- this.onwrite = function(er) {
- onwrite(stream, er);
- };
+// (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
+}
- // the callback that the user supplies to write(chunk,encoding,cb)
- this.writecb = null;
+// (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
+}
- // the amount that is being written when _write is called.
- this.writelen = 0;
+// return bigint initialized to value
+function nbv(i) {
+ var r = new BigInteger()
+ r.fromInt(i)
+ return r
+}
- this.buffer = [];
+// (protected) set from string and radix
+function bnpFromString(s, b) {
+ var self = this
- // number of pending user-supplied write callbacks
- // this must be 0 before 'finish' can be emitted
- this.pendingcb = 0;
+ 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)
+}
- // emit prefinish if the only thing we're waiting for is _write cbs
- // This is relevant for synchronous Transform streams
- this.prefinished = false;
+// (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
+}
- // True if the error was already emitted and should not be thrown again
- this.errorEmitted = false;
+// (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"
}
-function Writable(options) {
- var Duplex = require('./_stream_duplex');
+// (public) -this
+function bnNegate() {
+ var r = new BigInteger()
+ BigInteger.ZERO.subTo(this, r)
+ return r
+}
- // Writable ctor is applied to Duplexes, though they're not
- // instanceof Writable, they're instanceof Readable.
- if (!(this instanceof Writable) && !(this instanceof Duplex))
- return new Writable(options);
+// (public) |this|
+function bnAbs() {
+ return (this.s < 0) ? this.negate() : this
+}
- this._writableState = new WritableState(options, 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
+}
- // legacy.
- this.writable = true;
+// 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
+}
- Stream.call(this);
+// (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))
}
-// Otherwise people can pipe Writable streams, which is just wrong.
-Writable.prototype.pipe = function() {
- this.emit('error', new Error('Cannot pipe. Not readable.'));
-};
+// (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
+}
-function writeAfterEnd(stream, state, cb) {
- var er = new Error('write after end');
- // TODO: defer error events consistently everywhere, not just the cb
- stream.emit('error', er);
- process.nextTick(function() {
- cb(er);
- });
+// (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
}
-// If we get something that is not a buffer, string, null, or undefined,
-// and we're not in objectMode, then that's an error.
-// Otherwise stream chunks are all considered to be of length=1, and the
-// watermarks determine how many objects to keep in the buffer, rather than
-// how many bytes or characters.
-function validChunk(stream, state, chunk, cb) {
- var valid = true;
- if (!util.isBuffer(chunk) &&
- !util.isString(chunk) &&
- !util.isNullOrUndefined(chunk) &&
- !state.objectMode) {
- var er = new TypeError('Invalid non-string/buffer chunk');
- stream.emit('error', er);
- process.nextTick(function() {
- cb(er);
- });
- valid = false;
+// (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
}
- return valid;
+ 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()
}
-Writable.prototype.write = function(chunk, encoding, cb) {
- var state = this._writableState;
- var ret = false;
-
- if (util.isFunction(encoding)) {
- cb = encoding;
- encoding = null;
+// (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
}
-
- if (util.isBuffer(chunk))
- encoding = 'buffer';
- else if (!encoding)
- encoding = state.defaultEncoding;
-
- if (!util.isFunction(cb))
- cb = function() {};
-
- if (state.ended)
- writeAfterEnd(this, state, cb);
- else if (validChunk(this, state, chunk, cb)) {
- state.pendingcb++;
- ret = writeOrBuffer(this, state, chunk, encoding, cb);
+ 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()
+}
- return ret;
-};
-
-Writable.prototype.cork = function() {
- var state = this._writableState;
-
- state.corked++;
-};
-
-Writable.prototype.uncork = function() {
- var state = this._writableState;
-
- if (state.corked) {
- state.corked--;
-
- if (!state.writing &&
- !state.corked &&
- !state.finished &&
- !state.bufferProcessing &&
- state.buffer.length)
- clearBuffer(this, state);
+// (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
}
-};
-
-function decodeChunk(state, chunk, encoding) {
- if (!state.objectMode &&
- state.decodeStrings !== false &&
- util.isString(chunk)) {
- chunk = new Buffer(chunk, encoding);
+ 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
}
- return chunk;
+ 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()
}
-// if we're already writing something, then just put this
-// in the queue, and wait our turn. Otherwise, call _write
-// If we return false, then we need a drain event, so set that flag.
-function writeOrBuffer(stream, state, chunk, encoding, cb) {
- chunk = decodeChunk(state, chunk, encoding);
- if (util.isBuffer(chunk))
- encoding = 'buffer';
- var len = state.objectMode ? 1 : chunk.length;
-
- state.length += len;
-
- var ret = state.length < state.highWaterMark;
- // we must ensure that previous needDrain will not be reset to false.
- if (!ret)
- state.needDrain = true;
-
- if (state.writing || state.corked)
- state.buffer.push(new WriteReq(chunk, encoding, cb));
- else
- doWrite(stream, state, false, len, chunk, encoding, cb);
-
- return ret;
+// (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)
}
-function doWrite(stream, state, writev, len, chunk, encoding, cb) {
- state.writelen = len;
- state.writecb = cb;
- state.writing = true;
- state.sync = true;
- if (writev)
- stream._writev(chunk, state.onwrite);
- else
- stream._write(chunk, encoding, state.onwrite);
- state.sync = false;
+// (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()
}
-function onwriteError(stream, state, sync, er, cb) {
- if (sync)
- process.nextTick(function() {
- state.pendingcb--;
- cb(er);
- });
- else {
- state.pendingcb--;
- cb(er);
+// (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
}
-
- stream._writableState.errorEmitted = true;
- stream.emit('error', er);
+ 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)
}
-function onwriteStateUpdate(state) {
- state.writing = false;
- state.writecb = null;
- state.length -= state.writelen;
- state.writelen = 0;
+// (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
}
-function onwrite(stream, er) {
- var state = stream._writableState;
- var sync = state.sync;
- var cb = state.writecb;
-
- onwriteStateUpdate(state);
-
- if (er)
- onwriteError(stream, state, sync, er, cb);
- else {
- // Check if we're actually ready to finish, but don't emit yet
- var finished = needFinish(stream, state);
+// Modular reduction using "classic" algorithm
+function Classic(m) {
+ this.m = m
+}
- if (!finished &&
- !state.corked &&
- !state.bufferProcessing &&
- state.buffer.length) {
- clearBuffer(stream, state);
- }
+function cConvert(x) {
+ if (x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m)
+ else return x
+}
- if (sync) {
- process.nextTick(function() {
- afterWrite(stream, state, finished, cb);
- });
- } else {
- afterWrite(stream, state, finished, cb);
- }
- }
+function cRevert(x) {
+ return x
}
-function afterWrite(stream, state, finished, cb) {
- if (!finished)
- onwriteDrain(stream, state);
- state.pendingcb--;
- cb();
- finishMaybe(stream, state);
+function cReduce(x) {
+ x.divRemTo(this.m, null, x)
}
-// Must force callback to be called on nextTick, so that we don't
-// emit 'drain' before the write() consumer gets the 'false' return
-// value, and has a chance to attach a 'drain' listener.
-function onwriteDrain(stream, state) {
- if (state.length === 0 && state.needDrain) {
- state.needDrain = false;
- stream.emit('drain');
- }
+function cMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+ this.reduce(r)
}
+function cSqrTo(x, r) {
+ x.squareTo(r)
+ this.reduce(r)
+}
-// if there's something in the buffer waiting, then process it
-function clearBuffer(stream, state) {
- state.bufferProcessing = true;
+Classic.prototype.convert = cConvert
+Classic.prototype.revert = cRevert
+Classic.prototype.reduce = cReduce
+Classic.prototype.mulTo = cMulTo
+Classic.prototype.sqrTo = cSqrTo
- if (stream._writev && state.buffer.length > 1) {
- // Fast case, write everything using _writev()
- var cbs = [];
- for (var c = 0; c < state.buffer.length; c++)
- cbs.push(state.buffer[c].callback);
+// (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
+}
- // count the one we are adding, as well.
- // TODO(isaacs) clean this up
- state.pendingcb++;
- doWrite(stream, state, true, state.length, state.buffer, '', function(err) {
- for (var i = 0; i < cbs.length; i++) {
- state.pendingcb--;
- cbs[i](err);
- }
- });
+// 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
+}
- // Clear buffer
- state.buffer = [];
- } else {
- // Slow case, write chunks one-by-one
- for (var c = 0; c < state.buffer.length; c++) {
- var entry = state.buffer[c];
- var chunk = entry.chunk;
- var encoding = entry.encoding;
- var cb = entry.callback;
- var len = state.objectMode ? 1 : chunk.length;
+// 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
+}
- doWrite(stream, state, false, len, chunk, encoding, cb);
+// x/R mod m
+function montRevert(x) {
+ var r = new BigInteger()
+ x.copyTo(r)
+ this.reduce(r)
+ return r
+}
- // if we didn't call the onwrite immediately, then
- // it means that we need to wait until it does.
- // also, that means that the chunk and cb are currently
- // being processed, so move the buffer counter past them.
- if (state.writing) {
- c++;
- break;
- }
+// 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]++
}
-
- if (c < state.buffer.length)
- state.buffer = state.buffer.slice(c);
- else
- state.buffer.length = 0;
}
-
- state.bufferProcessing = false;
+ x.clamp()
+ x.drShiftTo(this.m.t, x)
+ if (x.compareTo(this.m) >= 0) x.subTo(this.m, x)
}
-Writable.prototype._write = function(chunk, encoding, cb) {
- cb(new Error('not implemented'));
+// 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)
+}
-Writable.prototype._writev = null;
+Montgomery.prototype.convert = montConvert
+Montgomery.prototype.revert = montRevert
+Montgomery.prototype.reduce = montReduce
+Montgomery.prototype.mulTo = montMulTo
+Montgomery.prototype.sqrTo = montSqrTo
-Writable.prototype.end = function(chunk, encoding, cb) {
- var state = this._writableState;
+// (protected) true iff this is even
+function bnpIsEven() {
+ return ((this.t > 0) ? (this[0] & 1) : this.s) == 0
+}
- if (util.isFunction(chunk)) {
- cb = chunk;
- chunk = null;
- encoding = null;
- } else if (util.isFunction(encoding)) {
- cb = encoding;
- encoding = null;
+// (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)
+}
- if (!util.isNullOrUndefined(chunk))
- this.write(chunk, encoding);
-
- // .end() fully uncorks
- if (state.corked) {
- state.corked = 1;
- this.uncork();
- }
+// (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)
+}
- // ignore unnecessary end() calls.
- if (!state.ending && !state.finished)
- endWritable(this, state, cb);
-};
+// 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
-function needFinish(stream, state) {
- return (state.ending &&
- state.length === 0 &&
- !state.finished &&
- !state.writing);
+// (public)
+function bnClone() {
+ var r = new BigInteger()
+ this.copyTo(r)
+ return r
}
-function prefinish(stream, state) {
- if (!state.prefinished) {
- state.prefinished = true;
- stream.emit('prefinish');
- }
+// (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]
}
-function finishMaybe(stream, state) {
- var need = needFinish(stream, state);
- if (need) {
- if (state.pendingcb === 0) {
- prefinish(stream, state);
- state.finished = true;
- stream.emit('finish');
- } else
- prefinish(stream, state);
- }
- return need;
+// (public) return value as byte
+function bnByteValue() {
+ return (this.t == 0) ? this.s : (this[0] << 24) >> 24
}
-function endWritable(stream, state, cb) {
- state.ending = true;
- finishMaybe(stream, state);
- if (cb) {
- if (state.finished)
- process.nextTick(cb);
- else
- stream.once('finish', cb);
- }
- state.ended = true;
+// (public) return value as short (assumes DB>=16)
+function bnShortValue() {
+ return (this.t == 0) ? this.s : (this[0] << 16) >> 16
}
-}).call(this,require('_process'))
-},{"./_stream_duplex":16,"_process":14,"buffer":7,"core-util-is":21,"inherits":12,"stream":26}],21:[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(ar) {
- return Array.isArray(ar);
+// (protected) return x s.t. r^x < DV
+function bnpChunkSize(r) {
+ return Math.floor(Math.LN2 * this.DB / Math.log(r))
}
-exports.isArray = isArray;
-function isBoolean(arg) {
- return typeof arg === 'boolean';
+// (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
}
-exports.isBoolean = isBoolean;
-function isNull(arg) {
- return arg === null;
+// (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
}
-exports.isNull = isNull;
-function isNullOrUndefined(arg) {
- return arg == null;
+// (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)
}
-exports.isNullOrUndefined = isNullOrUndefined;
-function isNumber(arg) {
- return typeof arg === 'number';
+// (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)
+ }
}
-exports.isNumber = isNumber;
-function isString(arg) {
- return typeof arg === 'string';
+// (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
}
-exports.isString = isString;
-function isSymbol(arg) {
- return typeof arg === 'symbol';
+function bnEquals(a) {
+ return (this.compareTo(a) == 0)
}
-exports.isSymbol = isSymbol;
-function isUndefined(arg) {
- return arg === void 0;
+function bnMin(a) {
+ return (this.compareTo(a) < 0) ? this : a
}
-exports.isUndefined = isUndefined;
-function isRegExp(re) {
- return isObject(re) && objectToString(re) === '[object RegExp]';
+function bnMax(a) {
+ return (this.compareTo(a) > 0) ? this : a
}
-exports.isRegExp = isRegExp;
-function isObject(arg) {
- return typeof arg === 'object' && arg !== null;
+// (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()
}
-exports.isObject = isObject;
-function isDate(d) {
- return isObject(d) && objectToString(d) === '[object Date]';
+// (public) this & a
+function op_and(x, y) {
+ return x & y
}
-exports.isDate = isDate;
-function isError(e) {
- return isObject(e) &&
- (objectToString(e) === '[object Error]' || e instanceof Error);
+function bnAnd(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_and, r)
+ return r
}
-exports.isError = isError;
-function isFunction(arg) {
- return typeof arg === 'function';
+// (public) this | a
+function op_or(x, y) {
+ return x | y
}
-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';
+function bnOr(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_or, r)
+ return r
}
-exports.isPrimitive = isPrimitive;
-function isBuffer(arg) {
- return Buffer.isBuffer(arg);
+// (public) this ^ a
+function op_xor(x, y) {
+ return x ^ y
}
-exports.isBuffer = isBuffer;
-function objectToString(o) {
- return Object.prototype.toString.call(o);
+function bnXor(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_xor, r)
+ return r
}
-}).call(this,require("buffer").Buffer)
-},{"buffer":7}],22:[function(require,module,exports){
-module.exports = require("./lib/_stream_passthrough.js")
-
-},{"./lib/_stream_passthrough.js":17}],23:[function(require,module,exports){
-exports = module.exports = require('./lib/_stream_readable.js');
-exports.Stream = require('stream');
-exports.Readable = exports;
-exports.Writable = require('./lib/_stream_writable.js');
-exports.Duplex = require('./lib/_stream_duplex.js');
-exports.Transform = require('./lib/_stream_transform.js');
-exports.PassThrough = require('./lib/_stream_passthrough.js');
-
-},{"./lib/_stream_duplex.js":16,"./lib/_stream_passthrough.js":17,"./lib/_stream_readable.js":18,"./lib/_stream_transform.js":19,"./lib/_stream_writable.js":20,"stream":26}],24:[function(require,module,exports){
-module.exports = require("./lib/_stream_transform.js")
-
-},{"./lib/_stream_transform.js":19}],25:[function(require,module,exports){
-module.exports = require("./lib/_stream_writable.js")
-
-},{"./lib/_stream_writable.js":20}],26:[function(require,module,exports){
-// 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.
-
-module.exports = Stream;
-
-var EE = require('events').EventEmitter;
-var inherits = require('inherits');
-
-inherits(Stream, EE);
-Stream.Readable = require('readable-stream/readable.js');
-Stream.Writable = require('readable-stream/writable.js');
-Stream.Duplex = require('readable-stream/duplex.js');
-Stream.Transform = require('readable-stream/transform.js');
-Stream.PassThrough = require('readable-stream/passthrough.js');
-
-// Backwards-compat with node 0.4.x
-Stream.Stream = Stream;
+// (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
+}
-// old-style streams. Note that the pipe method (the only relevant
-// part of this class) is overridden in the Readable class.
+// (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
+}
-function Stream() {
- EE.call(this);
+// (public) this << n
+function bnShiftLeft(n) {
+ var r = new BigInteger()
+ if (n < 0) this.rShiftTo(-n, r)
+ else this.lShiftTo(n, r)
+ return r
}
-Stream.prototype.pipe = function(dest, options) {
- var source = this;
+// (public) this >> n
+function bnShiftRight(n) {
+ var r = new BigInteger()
+ if (n < 0) this.lShiftTo(-n, r)
+ else this.rShiftTo(n, r)
+ return r
+}
- function ondata(chunk) {
- if (dest.writable) {
- if (false === dest.write(chunk) && source.pause) {
- source.pause();
- }
- }
+// 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
}
-
- source.on('data', ondata);
-
- function ondrain() {
- if (source.readable && source.resume) {
- source.resume();
- }
+ if ((x & 0xff) == 0) {
+ x >>= 8
+ r += 8
}
-
- dest.on('drain', ondrain);
-
- // If the 'end' option is not supplied, dest.end() will be called when
- // source gets the 'end' or 'close' events. Only dest.end() once.
- if (!dest._isStdio && (!options || options.end !== false)) {
- source.on('end', onend);
- source.on('close', onclose);
+ if ((x & 0xf) == 0) {
+ x >>= 4
+ r += 4
}
-
- var didOnEnd = false;
- function onend() {
- if (didOnEnd) return;
- didOnEnd = true;
-
- dest.end();
+ 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
+}
- function onclose() {
- if (didOnEnd) return;
- didOnEnd = true;
-
- if (typeof dest.destroy === 'function') dest.destroy();
+// return number of 1 bits in x
+function cbit(x) {
+ var r = 0
+ while (x != 0) {
+ x &= x - 1
+ ++r
}
+ return r
+}
- // don't leave dangling pipes when there are errors.
- function onerror(er) {
- cleanup();
- if (EE.listenerCount(this, 'error') === 0) {
- throw er; // Unhandled stream error in pipe.
- }
- }
+// (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
+}
- source.on('error', onerror);
- dest.on('error', onerror);
+// (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)
+}
- // remove all the event listeners that were added.
- function cleanup() {
- source.removeListener('data', ondata);
- dest.removeListener('drain', ondrain);
+// (protected) this op (1<<n)
+function bnpChangeBit(n, op) {
+ var r = BigInteger.ONE.shiftLeft(n)
+ this.bitwiseTo(r, op, r)
+ return r
+}
- source.removeListener('end', onend);
- source.removeListener('close', onclose);
+// (public) this | (1<<n)
+function bnSetBit(n) {
+ return this.changeBit(n, op_or)
+}
- source.removeListener('error', onerror);
- dest.removeListener('error', onerror);
+// (public) this & ~(1<<n)
+function bnClearBit(n) {
+ return this.changeBit(n, op_andnot)
+}
- source.removeListener('end', cleanup);
- source.removeListener('close', cleanup);
+// (public) this ^ (1<<n)
+function bnFlipBit(n) {
+ return this.changeBit(n, op_xor)
+}
- dest.removeListener('close', cleanup);
- }
+// (protected) r = this + a
+function bnpAddTo(a, r) {
+ var self = this
- source.on('end', cleanup);
- source.on('close', cleanup);
+ 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 > 0) r[i++] = c
+ else if (c < -1) r[i++] = self.DV + c
+ r.t = i
+ r.clamp()
+}
- dest.on('close', cleanup);
+// (public) this + a
+function bnAdd(a) {
+ var r = new BigInteger()
+ this.addTo(a, r)
+ return r
+}
- dest.emit('pipe', source);
+// (public) this - a
+function bnSubtract(a) {
+ var r = new BigInteger()
+ this.subTo(a, r)
+ return r
+}
- // Allow for unix-like usage: A.pipe(B).pipe(C)
- return dest;
-};
+// (public) this * a
+function bnMultiply(a) {
+ var r = new BigInteger()
+ this.multiplyTo(a, r)
+ return r
+}
-},{"events":11,"inherits":12,"readable-stream/duplex.js":15,"readable-stream/passthrough.js":22,"readable-stream/readable.js":23,"readable-stream/transform.js":24,"readable-stream/writable.js":25}],27:[function(require,module,exports){
-// 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.
+// (public) this^2
+function bnSquare() {
+ var r = new BigInteger()
+ this.squareTo(r)
+ return r
+}
-var Buffer = require('buffer').Buffer;
+// (public) this / a
+function bnDivide(a) {
+ var r = new BigInteger()
+ this.divRemTo(a, r, null)
+ return r
+}
-var isBufferEncoding = Buffer.isEncoding
- || function(encoding) {
- switch (encoding && encoding.toLowerCase()) {
- case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true;
- default: return false;
- }
- }
+// (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)
+}
-function assertEncoding(encoding) {
- if (encoding && !isBufferEncoding(encoding)) {
- throw new Error('Unknown encoding: ' + encoding);
- }
+// (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()
}
-// StringDecoder provides an interface for efficiently splitting a series of
-// buffers into a series of JS strings without breaking apart multi-byte
-// characters. CESU-8 is handled as part of the UTF-8 encoding.
-//
-// @TODO Handling all encodings inside a single object makes it very difficult
-// to reason about this code, so it should be split up in the future.
-// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code
-// points as used by CESU-8.
-var StringDecoder = exports.StringDecoder = function(encoding) {
- this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
- assertEncoding(encoding);
- switch (this.encoding) {
- case 'utf8':
- // CESU-8 represents each of Surrogate Pair by 3-bytes
- this.surrogateSize = 3;
- break;
- case 'ucs2':
- case 'utf16le':
- // UTF-16 represents each of Surrogate Pair by 2-bytes
- this.surrogateSize = 2;
- this.detectIncompleteChar = utf16DetectIncompleteChar;
- break;
- case 'base64':
- // Base-64 stores 3 bytes in 4 chars, and pads the remainder.
- this.surrogateSize = 3;
- this.detectIncompleteChar = base64DetectIncompleteChar;
- break;
- default:
- this.write = passThroughWrite;
- return;
+// (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]
}
+}
- // Enough space to store all bytes of a single character. UTF-8 needs 4
- // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate).
- this.charBuffer = new Buffer(6);
- // Number of bytes received for the current incomplete multi-byte character.
- this.charReceived = 0;
- // Number of bytes expected for the current incomplete multi-byte character.
- this.charLength = 0;
-};
-
+// A "null" reducer
+function NullExp() {}
-// write decodes the given buffer and returns it as JS string that is
-// guaranteed to not contain any partial multi-byte characters. Any partial
-// character found at the end of the buffer is buffered up, and will be
-// returned when calling write again with the remaining bytes.
-//
-// Note: Converting a Buffer containing an orphan surrogate to a String
-// currently works, but converting a String to a Buffer (via `new Buffer`, or
-// Buffer#write) will replace incomplete surrogates with the unicode
-// replacement character. See https://codereview.chromium.org/121173009/ .
-StringDecoder.prototype.write = function(buffer) {
- var charStr = '';
- // if our last write ended with an incomplete multibyte character
- while (this.charLength) {
- // determine how many remaining bytes this buffer has to offer for this char
- var available = (buffer.length >= this.charLength - this.charReceived) ?
- this.charLength - this.charReceived :
- buffer.length;
+function nNop(x) {
+ return x
+}
- // add the new bytes to the char buffer
- buffer.copy(this.charBuffer, this.charReceived, 0, available);
- this.charReceived += available;
+function nMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+}
- if (this.charReceived < this.charLength) {
- // still not enough chars in this buffer? wait for more ...
- return '';
- }
+function nSqrTo(x, r) {
+ x.squareTo(r)
+}
- // remove bytes belonging to the current character from the buffer
- buffer = buffer.slice(available, buffer.length);
+NullExp.prototype.convert = nNop
+NullExp.prototype.revert = nNop
+NullExp.prototype.mulTo = nMulTo
+NullExp.prototype.sqrTo = nSqrTo
- // get the character that was split
- charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);
+// (public) this^e
+function bnPow(e) {
+ return this.exp(e, new NullExp())
+}
- // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
- var charCode = charStr.charCodeAt(charStr.length - 1);
- if (charCode >= 0xD800 && charCode <= 0xDBFF) {
- this.charLength += this.surrogateSize;
- charStr = '';
- continue;
- }
- this.charReceived = this.charLength = 0;
+// (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()
+}
- // if there are no more bytes in this buffer, just emit our char
- if (buffer.length === 0) {
- return charStr;
- }
- break;
- }
+// (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)
+}
- // determine and set charLength / charReceived
- this.detectIncompleteChar(buffer);
+// 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
+}
- var end = buffer.length;
- if (this.charLength) {
- // buffer the incomplete character bytes we got
- buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end);
- end -= this.charReceived;
+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
}
+}
- charStr += buffer.toString(this.encoding, 0, end);
+function barrettRevert(x) {
+ return x
+}
- var end = charStr.length - 1;
- var charCode = charStr.charCodeAt(end);
- // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
- if (charCode >= 0xD800 && charCode <= 0xDBFF) {
- var size = this.surrogateSize;
- this.charLength += size;
- this.charReceived += size;
- this.charBuffer.copy(this.charBuffer, size, 0, size);
- buffer.copy(this.charBuffer, 0, 0, size);
- return charStr.substring(0, end);
+// 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)
+}
- // or just emit the charStr
- return charStr;
-};
+// r = x^2 mod m; x != r
+function barrettSqrTo(x, r) {
+ x.squareTo(r)
+ this.reduce(r)
+}
-// detectIncompleteChar determines if there is an incomplete UTF-8 character at
-// the end of the given buffer. If so, it sets this.charLength to the byte
-// length that character, and sets this.charReceived to the number of bytes
-// that are available for this character.
-StringDecoder.prototype.detectIncompleteChar = function(buffer) {
- // determine how many bytes we have to check at the end of this buffer
- var i = (buffer.length >= 3) ? 3 : buffer.length;
+// r = x*y mod m; x,y != r
+function barrettMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+ this.reduce(r)
+}
- // Figure out if one of the last i bytes of our buffer announces an
- // incomplete char.
- for (; i > 0; i--) {
- var c = buffer[buffer.length - i];
+Barrett.prototype.convert = barrettConvert
+Barrett.prototype.revert = barrettRevert
+Barrett.prototype.reduce = barrettReduce
+Barrett.prototype.mulTo = barrettMulTo
+Barrett.prototype.sqrTo = barrettSqrTo
- // See http://en.wikipedia.org/wiki/UTF-8#Description
+// (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)
- // 110XXXXX
- if (i == 1 && c >> 5 == 0x06) {
- this.charLength = 2;
- break;
+ // 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
}
+ }
- // 1110XXXX
- if (i <= 2 && c >> 4 == 0x0E) {
- this.charLength = 3;
- break;
+ 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)
}
- // 11110XXX
- if (i <= 3 && c >> 3 == 0x1E) {
- this.charLength = 4;
- break;
+ 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)
}
- }
- this.charReceived = i;
-};
-
-StringDecoder.prototype.end = function(buffer) {
- var res = '';
- if (buffer && buffer.length)
- res = this.write(buffer);
- if (this.charReceived) {
- var cr = this.charReceived;
- var buf = this.charBuffer;
- var enc = this.encoding;
- res += buf.slice(0, cr).toString(enc);
+ 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 res;
-};
-
-function passThroughWrite(buffer) {
- return buffer.toString(this.encoding);
-}
-
-function utf16DetectIncompleteChar(buffer) {
- this.charReceived = buffer.length % 2;
- this.charLength = this.charReceived ? 2 : 0;
+ return z.revert(r)
}
-function base64DetectIncompleteChar(buffer) {
- this.charReceived = buffer.length % 3;
- this.charLength = this.charReceived ? 3 : 0;
+// (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
}
-},{"buffer":7}],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';
+// (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
}
-},{}],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]));
+// (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)
}
- 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]';
+ while (v.isEven()) {
+ v.rShiftTo(1, v)
+ if (ac) {
+ if (!c.isEven() || !d.isEven()) {
+ c.addTo(this, c)
+ d.subTo(m, d)
}
- default:
- return x;
+ c.rShiftTo(1, c)
+ } else if (!d.isEven()) d.subTo(m, d)
+ d.rShiftTo(1, d)
}
- });
- for (var x = args[i]; i < len; x = args[++i]) {
- if (isNull(x) || !isObject(x)) {
- str += ' ' + x;
+ if (u.compareTo(v) >= 0) {
+ u.subTo(v, u)
+ if (ac) a.subTo(c, a)
+ b.subTo(d, b)
} else {
- str += ' ' + inspect(x);
+ v.subTo(u, v)
+ if (ac) c.subTo(a, c)
+ d.subTo(b, d)
}
}
- return str;
-};
+ 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
+]
-// 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);
- };
- }
+var lplim = (1 << 26) / lowprimes[lowprimes.length - 1]
- if (process.noDeprecation === true) {
- return fn;
+// (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)
+}
- 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);
+// (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
}
- warned = true;
+ if (y.compareTo(n1) != 0) return false
}
- return fn.apply(this, arguments);
}
+ return true
+}
- return deprecated;
-};
+// 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
-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() {};
- }
+// constants
+BigInteger.ZERO = nbv(0)
+BigInteger.ONE = nbv(1)
+BigInteger.valueOf = nbv
+
+module.exports = BigInteger
+
+},{"../package.json":38}],36:[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 debugs[set];
-};
+ return new BigInteger(byteArray)
+}
/**
- * Echos the value of a value. Trys to print the value out
- * in the best way possible given the different types.
+ * Returns a byte array representation of the big integer.
*
- * @param {Object} obj The object to print out.
- * @param {Object} opts Optional options object that alters the output.
+ * This returns the absolute of the contained value in big endian
+ * form. A value of zero results in an empty array.
*/
-/* 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);
+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))
}
- // 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);
+
+ return new BigInteger(buffer)
}
-exports.inspect = inspect;
+BigInteger.fromHex = function(hex) {
+ if (hex === '') return BigInteger.ZERO
-// 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]
-};
+ 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)
+}
-// 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'
-};
+BigInteger.prototype.toBuffer = function(size) {
+ var byteArray = this.toByteArrayUnsigned()
+ var zeros = []
+ var padding = size - byteArray.length
+ while (zeros.length < padding) zeros.push(0)
-function stylizeWithColor(str, styleType) {
- var style = inspect.styles[styleType];
+ return new Buffer(zeros.concat(byteArray))
+}
- if (style) {
- return '\u001b[' + inspect.colors[style][0] + 'm' + str +
- '\u001b[' + inspect.colors[style][1] + 'm';
- } else {
- return str;
- }
+BigInteger.prototype.toHex = function(size) {
+ return this.toBuffer(size).toString('hex')
}
+}).call(this,require("buffer").Buffer)
+},{"./bigi":35,"assert":1,"buffer":4}],37:[function(require,module,exports){
+var BigInteger = require('./bigi')
-function stylizeNoColor(str, styleType) {
- return str;
+//addons
+require('./convert')
+
+module.exports = BigInteger
+},{"./bigi":35,"./convert":36}],38:[function(require,module,exports){
+module.exports={
+ "_args": [
+ [
+ "bigi",
+ "/home/ian/git/bitcoin/bitcoinjs-lib-browser"
+ ]
+ ],
+ "_from": "bigi@latest",
+ "_id": "bigi@1.4.2",
+ "_inCache": true,
+ "_installable": true,
+ "_location": "/bigi",
+ "_nodeVersion": "6.1.0",
+ "_npmOperationalInternal": {
+ "host": "packages-12-west.internal.npmjs.com",
+ "tmp": "tmp/bigi-1.4.2.tgz_1469584192413_0.6801238611806184"
+ },
+ "_npmUser": {
+ "email": "jprichardson@gmail.com",
+ "name": "jprichardson"
+ },
+ "_npmVersion": "3.8.6",
+ "_phantomChildren": {},
+ "_requested": {
+ "name": "bigi",
+ "raw": "bigi",
+ "rawSpec": "",
+ "scope": null,
+ "spec": "latest",
+ "type": "tag"
+ },
+ "_requiredBy": [
+ "#USER",
+ "/bitcoinjs-lib",
+ "/ecurve"
+ ],
+ "_resolved": "https://registry.npmjs.org/bigi/-/bigi-1.4.2.tgz",
+ "_shasum": "9c665a95f88b8b08fc05cfd731f561859d725825",
+ "_shrinkwrap": null,
+ "_spec": "bigi",
+ "_where": "/home/ian/git/bitcoin/bitcoinjs-lib-browser",
+ "bugs": {
+ "url": "https://github.com/cryptocoinjs/bigi/issues"
+ },
+ "dependencies": {},
+ "description": "Big integers.",
+ "devDependencies": {
+ "coveralls": "^2.11.2",
+ "istanbul": "^0.3.5",
+ "jshint": "^2.5.1",
+ "mocha": "^2.1.0",
+ "mochify": "^2.1.0"
+ },
+ "directories": {},
+ "dist": {
+ "shasum": "9c665a95f88b8b08fc05cfd731f561859d725825",
+ "tarball": "https://registry.npmjs.org/bigi/-/bigi-1.4.2.tgz"
+ },
+ "gitHead": "c25308081c896ff84702303722bf5ecd8b3f78e3",
+ "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",
+ "maintainers": [
+ {
+ "email": "boydb@midnightdesign.ws",
+ "name": "midnightlightning"
+ },
+ {
+ "email": "sidazhang89@gmail.com",
+ "name": "sidazhang"
+ },
+ {
+ "email": "npm@shesek.info",
+ "name": "nadav"
+ },
+ {
+ "email": "jprichardson@gmail.com",
+ "name": "jprichardson"
+ }
+ ],
+ "name": "bigi",
+ "optionalDependencies": {},
+ "readme": "ERROR: No README data found!",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/cryptocoinjs/bigi.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": {
+ "browsers": [
+ "ie/9..latest",
+ "firefox/latest",
+ "chrome/latest",
+ "safari/6.0..latest",
+ "iphone/6.0..latest",
+ "android-browser/4.2..latest"
+ ],
+ "files": "test/*.js",
+ "harness": "mocha"
+ },
+ "version": "1.4.2"
}
+},{}],39:[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
-function arrayToHash(array) {
- var hash = {};
-
- array.forEach(function(val, idx) {
- hash[val] = true;
- });
+var Buffer = require('safe-buffer').Buffer
- return hash;
-}
+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
-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;
- }
+ var lenS = buffer[5 + lenR]
+ if (lenS === 0) return false
+ if ((6 + lenR + lenS) !== buffer.length) return false
- // Primitive types cannot have properties
- var primitive = formatPrimitive(ctx, value);
- if (primitive) {
- return primitive;
- }
+ if (buffer[4] & 0x80) return false
+ if (lenR > 1 && (buffer[4] === 0x00) && !(buffer[5] & 0x80)) return false
- // Look up the keys of the object.
- var keys = Object.keys(value);
- var visibleKeys = arrayToHash(keys);
+ if (buffer[lenR + 6] & 0x80) return false
+ if (lenS > 1 && (buffer[lenR + 6] === 0x00) && !(buffer[lenR + 7] & 0x80)) return false
+ return true
+}
- if (ctx.showHidden) {
- keys = Object.getOwnPropertyNames(value);
- }
+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')
- // 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);
- }
+ 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)')
- // 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 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')
- var base = '', array = false, braces = ['{', '}'];
+ 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')
- // Make Array say that they are Array
- if (isArray(value)) {
- array = true;
- braces = ['[', ']'];
- }
+ 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')
- // Make functions say that they are functions
- if (isFunction(value)) {
- var n = value.name ? ': ' + value.name : '';
- base = ' [Function' + n + ']';
+ // non-BIP66 - extract R, S values
+ return {
+ r: buffer.slice(4, 4 + lenR),
+ s: buffer.slice(6 + lenR)
}
+}
- // Make RegExps say that they are RegExps
- if (isRegExp(value)) {
- base = ' ' + RegExp.prototype.toString.call(value);
- }
+/*
+ * 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')
- // Make dates with properties first say the date
- if (isDate(value)) {
- base = ' ' + Date.prototype.toUTCString.call(value);
- }
+ var signature = Buffer.allocUnsafe(6 + lenR + lenS)
- // Make error with message first say the error
- if (isError(value)) {
- base = ' ' + formatError(value);
- }
+ // 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)
- if (keys.length === 0 && (!array || value.length == 0)) {
- return braces[0] + base + braces[1];
- }
+ return signature
+}
- if (recurseTimes < 0) {
- if (isRegExp(value)) {
- return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
- } else {
- return ctx.stylize('[Object]', 'special');
- }
- }
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
- ctx.seen.push(value);
+},{"safe-buffer":98}],40:[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_1": 81,
+ "OP_TRUE": 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_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
+}
+
+},{}],41:[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":40}],42:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var bs58check = require('bs58check')
+var bscript = require('./script')
+var networks = require('./networks')
+var typeforce = require('typeforce')
+var types = require('./types')
- 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);
- });
- }
+function fromBase58Check (address) {
+ var payload = bs58check.decode(address)
+ if (payload.length < 21) throw new TypeError(address + ' is too short')
+ if (payload.length > 21) throw new TypeError(address + ' is too long')
- ctx.seen.pop();
+ var version = payload.readUInt8(0)
+ var hash = payload.slice(1)
- return reduceToSingleString(output, base, braces);
+ return { hash: hash, version: version }
}
+function toBase58Check (hash, version) {
+ typeforce(types.tuple(types.Hash160bit, types.UInt8), arguments)
-function formatPrimitive(ctx, value) {
- if (isUndefined(value))
- return ctx.stylize('undefined', 'undefined');
- if (isString(value)) {
- var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
- .replace(/'/g, "\\'")
- .replace(/\\"/g, '"') + '\'';
- return ctx.stylize(simple, 'string');
- }
- if (isNumber(value))
- return ctx.stylize('' + value, 'number');
- if (isBoolean(value))
- return ctx.stylize('' + value, 'boolean');
- // For some reason typeof null is "object", so special case here.
- if (isNull(value))
- return ctx.stylize('null', 'null');
-}
-
+ var payload = Buffer.allocUnsafe(21)
+ payload.writeUInt8(version, 0)
+ hash.copy(payload, 1)
-function formatError(value) {
- return '[' + Error.prototype.toString.call(value) + ']';
+ return bs58check.encode(payload)
}
+function fromOutputScript (outputScript, network) {
+ network = network || networks.bitcoin
-function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
- var output = [];
- for (var i = 0, l = value.length; i < l; ++i) {
- if (hasOwnProperty(value, String(i))) {
- output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
- String(i), true));
- } else {
- output.push('');
- }
- }
- keys.forEach(function(key) {
- if (!key.match(/^\d+$/)) {
- output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
- key, true));
- }
- });
- return output;
+ if (bscript.pubKeyHash.output.check(outputScript)) return toBase58Check(bscript.compile(outputScript).slice(3, 23), network.pubKeyHash)
+ if (bscript.scriptHash.output.check(outputScript)) return toBase58Check(bscript.compile(outputScript).slice(2, 22), network.scriptHash)
+
+ throw new Error(bscript.toASM(outputScript) + ' has no matching Address')
}
+function toOutputScript (address, network) {
+ network = network || networks.bitcoin
-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');
- }
- }
+ var decode = fromBase58Check(address)
+ if (decode.version === network.pubKeyHash) return bscript.pubKeyHash.output.encode(decode.hash)
+ if (decode.version === network.scriptHash) return bscript.scriptHash.output.encode(decode.hash)
- return name + ': ' + str;
+ throw new Error(address + ' has no matching Script')
}
+module.exports = {
+ fromBase58Check: fromBase58Check,
+ fromOutputScript: fromOutputScript,
+ toBase58Check: toBase58Check,
+ toOutputScript: toOutputScript
+}
-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);
+},{"./networks":51,"./script":52,"./types":78,"bs58check":80,"safe-buffer":98,"typeforce":109}],43:[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')
- if (length > 60) {
- return braces[0] +
- (base === '' ? '' : base + '\n ') +
- ' ' +
- output.join(',\n ') +
- ' ' +
- braces[1];
- }
+var Transaction = require('./transaction')
- return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
+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)')
-// 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;
+ var offset = 0
+ function readSlice (n) {
+ offset += n
+ return buffer.slice(offset - n, offset)
+ }
-function isBoolean(arg) {
- return typeof arg === 'boolean';
-}
-exports.isBoolean = isBoolean;
+ function readUInt32 () {
+ var i = buffer.readUInt32LE(offset)
+ offset += 4
+ return i
+ }
-function isNull(arg) {
- return arg === null;
-}
-exports.isNull = isNull;
+ function readInt32 () {
+ var i = buffer.readInt32LE(offset)
+ offset += 4
+ return i
+ }
-function isNullOrUndefined(arg) {
- return arg == null;
-}
-exports.isNullOrUndefined = isNullOrUndefined;
+ var block = new Block()
+ block.version = readInt32()
+ block.prevHash = readSlice(32)
+ block.merkleRoot = readSlice(32)
+ block.timestamp = readUInt32()
+ block.bits = readUInt32()
+ block.nonce = readUInt32()
-function isNumber(arg) {
- return typeof arg === 'number';
-}
-exports.isNumber = isNumber;
+ if (buffer.length === 80) return block
-function isString(arg) {
- return typeof arg === 'string';
-}
-exports.isString = isString;
+ function readVarInt () {
+ var vi = varuint.decode(buffer, offset)
+ offset += varuint.decode.bytes
+ return vi
+ }
-function isSymbol(arg) {
- return typeof arg === 'symbol';
-}
-exports.isSymbol = isSymbol;
+ function readTransaction () {
+ var tx = Transaction.fromBuffer(buffer.slice(offset), true)
+ offset += tx.byteLength()
+ return tx
+ }
-function isUndefined(arg) {
- return arg === void 0;
-}
-exports.isUndefined = isUndefined;
+ var nTransactions = readVarInt()
+ block.transactions = []
-function isRegExp(re) {
- return isObject(re) && objectToString(re) === '[object RegExp]';
-}
-exports.isRegExp = isRegExp;
+ for (var i = 0; i < nTransactions; ++i) {
+ var tx = readTransaction()
+ block.transactions.push(tx)
+ }
-function isObject(arg) {
- return typeof arg === 'object' && arg !== null;
+ return block
}
-exports.isObject = isObject;
-function isDate(d) {
- return isObject(d) && objectToString(d) === '[object Date]';
-}
-exports.isDate = isDate;
+Block.prototype.byteLength = function (headersOnly) {
+ if (headersOnly || !this.transactions) return 80
-function isError(e) {
- return isObject(e) &&
- (objectToString(e) === '[object Error]' || e instanceof Error);
+ return 80 + varuint.encodingLength(this.transactions.length) + this.transactions.reduce(function (a, x) {
+ return a + x.byteLength()
+ }, 0)
}
-exports.isError = isError;
-function isFunction(arg) {
- return typeof arg === 'function';
+Block.fromHex = function (hex) {
+ return Block.fromBuffer(Buffer.from(hex, 'hex'))
}
-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';
+Block.prototype.getHash = function () {
+ return bcrypto.hash256(this.toBuffer(true))
}
-exports.isPrimitive = isPrimitive;
-
-exports.isBuffer = require('./support/isBuffer');
-function objectToString(o) {
- return Object.prototype.toString.call(o);
+Block.prototype.getId = function () {
+ return this.getHash().reverse().toString('hex')
}
+Block.prototype.getUTCDate = function () {
+ var date = new Date(0) // epoch
+ date.setUTCSeconds(this.timestamp)
-function pad(n) {
- return n < 10 ? '0' + n.toString(10) : n.toString(10);
+ return date
}
+// TODO: buffer, offset compatibility
+Block.prototype.toBuffer = function (headersOnly) {
+ var buffer = Buffer.allocUnsafe(this.byteLength(headersOnly))
-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(' ');
-}
-
+ var offset = 0
+ function writeSlice (slice) {
+ slice.copy(buffer, offset)
+ offset += slice.length
+ }
-// 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));
-};
+ 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)
-/**
- * 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');
+ if (headersOnly || !this.transactions) return buffer
-exports._extend = function(origin, add) {
- // Don't do anything if add isn't an object
- if (!add || !isObject(add)) return origin;
+ varuint.encode(this.transactions.length, buffer, offset)
+ offset += varuint.encode.bytes
- var keys = Object.keys(add);
- var i = keys.length;
- while (i--) {
- origin[keys[i]] = add[keys[i]];
- }
- return origin;
-};
+ this.transactions.forEach(function (tx) {
+ var txSize = tx.byteLength() // TODO: extract from toBuffer?
+ tx.toBuffer(buffer, offset)
+ offset += txSize
+ })
-function hasOwnProperty(obj, prop) {
- return Object.prototype.hasOwnProperty.call(obj, prop);
+ return buffer
}
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./support/isBuffer":28,"_process":14,"inherits":12}],30:[function(require,module,exports){
-// Base58 encoding/decoding
-// Originally written by Mike Hearn for BitcoinJ
-// Copyright (c) 2011 Google Inc
-// Ported to JavaScript by Stefan Thomas
-// Merged Buffer refactorings from base58-native by Stephen Pair
-// Copyright (c) 2013 BitPay Inc
+Block.prototype.toHex = function (headersOnly) {
+ return this.toBuffer(headersOnly).toString('hex')
+}
-var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
-var ALPHABET_MAP = {}
-for(var i = 0; i < ALPHABET.length; i++) {
- ALPHABET_MAP[ALPHABET.charAt(i)] = i
+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
}
-var BASE = 58
-function encode(buffer) {
- if (buffer.length === 0) return ''
+Block.calculateMerkleRoot = function (transactions) {
+ typeforce([{ getHash: types.Function }], transactions)
+ if (transactions.length === 0) throw TypeError('Cannot compute merkle root for zero transactions')
- var i, j, digits = [0]
- for (i = 0; i < buffer.length; i++) {
- for (j = 0; j < digits.length; j++) digits[j] <<= 8
+ var hashes = transactions.map(function (transaction) {
+ return transaction.getHash()
+ })
- digits[0] += buffer[i]
+ return fastMerkleRoot(hashes, bcrypto.hash256)
+}
- var carry = 0
- for (j = 0; j < digits.length; ++j) {
- digits[j] += carry
+Block.prototype.checkMerkleRoot = function () {
+ if (!this.transactions) return false
- carry = (digits[j] / BASE) | 0
- digits[j] %= BASE
- }
+ var actualMerkleRoot = Block.calculateMerkleRoot(this.transactions)
+ return this.merkleRoot.compare(actualMerkleRoot) === 0
+}
- while (carry) {
- digits.push(carry % BASE)
+Block.prototype.checkProofOfWork = function () {
+ var hash = this.getHash().reverse()
+ var target = Block.calculateTarget(this.bits)
- carry = (carry / BASE) | 0
- }
- }
+ return hash.compare(target) <= 0
+}
+
+module.exports = Block
- // deal with leading zeros
- for (i = 0; buffer[i] === 0 && i < buffer.length - 1; i++) digits.push(0)
+},{"./crypto":45,"./transaction":76,"./types":78,"merkle-lib/fastRoot":94,"safe-buffer":98,"typeforce":109,"varuint-bitcoin":111}],44:[function(require,module,exports){
+var pushdata = require('pushdata-bitcoin')
+var varuint = require('varuint-bitcoin')
- // convert digits to a string
- var stringOutput = ""
- for (var i = digits.length - 1; i >= 0; i--) {
- stringOutput = stringOutput + ALPHABET[digits[i]]
- }
- return stringOutput
+// 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 decode(string) {
- if (string.length === 0) return []
+function readUInt64LE (buffer, offset) {
+ var a = buffer.readUInt32LE(offset)
+ var b = buffer.readUInt32LE(offset + 4)
+ b *= 0x100000000
- var i, j, bytes = [0]
- for (i = 0; i < string.length; i++) {
- var c = string[i]
- if (!(c in ALPHABET_MAP)) throw new Error('Non-base58 character')
+ verifuint(b + a, 0x001fffffffffffff)
- for (j = 0; j < bytes.length; j++) bytes[j] *= BASE
- bytes[0] += ALPHABET_MAP[c]
+ return b + a
+}
- var carry = 0
- for (j = 0; j < bytes.length; ++j) {
- bytes[j] += carry
+function writeUInt64LE (buffer, value, offset) {
+ verifuint(value, 0x001fffffffffffff)
- carry = bytes[j] >> 8
- bytes[j] &= 0xff
- }
+ buffer.writeInt32LE(value & -1, offset)
+ buffer.writeUInt32LE(Math.floor(value / 0x100000000), offset + 4)
+ return offset + 8
+}
- while (carry) {
- bytes.push(carry & 0xff)
+// TODO: remove in 4.0.0?
+function readVarInt (buffer, offset) {
+ var result = varuint.decode(buffer, offset)
- carry >>= 8
- }
+ return {
+ number: result,
+ size: varuint.decode.bytes
}
+}
- // deal with leading zeros
- for (i = 0; string[i] === '1' && i < string.length - 1; i++) bytes.push(0)
-
- return bytes.reverse()
+// TODO: remove in 4.0.0?
+function writeVarInt (buffer, number, offset) {
+ varuint.encode(number, buffer, offset)
+ return varuint.encode.bytes
}
module.exports = {
- encode: encode,
- decode: decode
+ pushDataSize: pushdata.encodingLength,
+ readPushDataInt: pushdata.decode,
+ readUInt64LE: readUInt64LE,
+ readVarInt: readVarInt,
+ varIntBuffer: varuint.encode,
+ varIntSize: varuint.encodingLength,
+ writePushDataInt: pushdata.encode,
+ writeUInt64LE: writeUInt64LE,
+ writeVarInt: writeVarInt
}
-},{}],31:[function(require,module,exports){
-(function (Buffer){
-'use strict'
-
-var base58 = require('bs58')
+},{"pushdata-bitcoin":95,"varuint-bitcoin":111}],45:[function(require,module,exports){
var createHash = require('create-hash')
-// SHA256(SHA256(buffer))
-function sha256x2 (buffer) {
- buffer = createHash('sha256').update(buffer).digest()
- return createHash('sha256').update(buffer).digest()
+function ripemd160 (buffer) {
+ return createHash('rmd160').update(buffer).digest()
}
-// Encode a buffer as a base58-check encoded string
-function encode (payload) {
- var checksum = sha256x2(payload).slice(0, 4)
-
- return base58.encode(Buffer.concat([
- payload,
- checksum
- ]))
+function sha1 (buffer) {
+ return createHash('sha1').update(buffer).digest()
}
-// Decode a base58-check encoded string to a buffer
-function decode (string) {
- var buffer = new Buffer(base58.decode(string))
-
- var payload = buffer.slice(0, -4)
- var checksum = buffer.slice(-4)
- var newChecksum = sha256x2(payload).slice(0, 4)
-
- for (var i = 0; i < newChecksum.length; ++i) {
- if (newChecksum[i] === checksum[i]) continue
+function sha256 (buffer) {
+ return createHash('sha256').update(buffer).digest()
+}
- throw new Error('Invalid checksum')
- }
+function hash160 (buffer) {
+ return ripemd160(sha256(buffer))
+}
- return payload
+function hash256 (buffer) {
+ return sha256(sha256(buffer))
}
module.exports = {
- encode: encode,
- decode: decode
+ hash160: hash160,
+ hash256: hash256,
+ ripemd160: ripemd160,
+ sha1: sha1,
+ sha256: sha256
}
-}).call(this,require("buffer").Buffer)
-},{"bs58":30,"buffer":7,"create-hash":32}],32:[function(require,module,exports){
-(function (Buffer){
-'use strict';
-var inherits = require('inherits')
-var md5 = require('./md5')
-var rmd160 = require('ripemd160')
-var sha = require('sha.js')
-
-var Transform = require('stream').Transform
-
-function HashNoConstructor(hash) {
- Transform.call(this)
+},{"create-hash":82}],46:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var createHmac = require('create-hmac')
+var typeforce = require('typeforce')
+var types = require('./types')
- this._hash = hash
- this.buffers = []
-}
+var BigInteger = require('bigi')
+var ECSignature = require('./ecsignature')
-inherits(HashNoConstructor, Transform)
+var ZERO = Buffer.alloc(1, 0)
+var ONE = Buffer.alloc(1, 1)
-HashNoConstructor.prototype._transform = function (data, _, next) {
- this.buffers.push(data)
+var ecurve = require('ecurve')
+var secp256k1 = ecurve.getCurveByName('secp256k1')
- next()
-}
+// https://tools.ietf.org/html/rfc6979#section-3.2
+function deterministicGenerateK (hash, x, checkSig) {
+ typeforce(types.tuple(
+ types.Hash256bit,
+ types.Buffer256bit,
+ types.Function
+ ), arguments)
-HashNoConstructor.prototype._flush = function (next) {
- this.push(this.digest())
- next()
-}
+ // Step A, ignored as hash already provided
+ // Step B
+ // Step C
+ var k = Buffer.alloc(32, 0)
+ var v = Buffer.alloc(32, 1)
-HashNoConstructor.prototype.update = function (data, enc) {
- if (typeof data === 'string') {
- data = new Buffer(data, enc)
- }
+ // Step D
+ k = createHmac('sha256', k)
+ .update(v)
+ .update(ZERO)
+ .update(x)
+ .update(hash)
+ .digest()
- this.buffers.push(data)
- return this
-}
+ // Step E
+ v = createHmac('sha256', k).update(v).digest()
-HashNoConstructor.prototype.digest = function (enc) {
- var buf = Buffer.concat(this.buffers)
- var r = this._hash(buf)
- this.buffers = null
+ // Step F
+ k = createHmac('sha256', k)
+ .update(v)
+ .update(ONE)
+ .update(x)
+ .update(hash)
+ .digest()
- return enc ? r.toString(enc) : r
-}
+ // Step G
+ v = createHmac('sha256', k).update(v).digest()
-function Hash(hash) {
- Transform.call(this)
+ // Step H1/H2a, ignored as tlen === qlen (256 bit)
+ // Step H2b
+ v = createHmac('sha256', k).update(v).digest()
- this._hash = hash
-}
+ var T = BigInteger.fromBuffer(v)
-inherits(Hash, Transform)
+ // 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()
-Hash.prototype._transform = function (data, enc, next) {
- if (enc) data = new Buffer(data, enc)
+ v = createHmac('sha256', k).update(v).digest()
- this._hash.update(data)
+ // Step H1/H2a, again, ignored as tlen === qlen (256 bit)
+ // Step H2b again
+ v = createHmac('sha256', k).update(v).digest()
+ T = BigInteger.fromBuffer(v)
+ }
- next()
+ return T
}
-Hash.prototype._flush = function (next) {
- this.push(this._hash.digest())
- this._hash = null
-
- next()
-}
+var N_OVER_TWO = secp256k1.n.shiftRight(1)
-Hash.prototype.update = function (data, enc) {
- if (typeof data === 'string') {
- data = new Buffer(data, enc)
- }
+function sign (hash, d) {
+ typeforce(types.tuple(types.Hash256bit, types.BigInt), arguments)
- this._hash.update(data)
- return this
-}
+ var x = d.toBuffer(32)
+ var e = BigInteger.fromBuffer(hash)
+ var n = secp256k1.n
+ var G = secp256k1.G
-Hash.prototype.digest = function (enc) {
- var outData = this._hash.digest()
+ var r, s
+ deterministicGenerateK(hash, x, function (k) {
+ var Q = G.multiply(k)
- return enc ? outData.toString(enc) : outData
-}
+ if (secp256k1.isInfinity(Q)) return false
-module.exports = function createHash (alg) {
- if ('md5' === alg) return new HashNoConstructor(md5)
- if ('rmd160' === alg) return new HashNoConstructor(rmd160)
+ r = Q.affineX.mod(n)
+ if (r.signum() === 0) return false
- return new Hash(sha(alg))
-}
+ s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n)
+ if (s.signum() === 0) return false
-}).call(this,require("buffer").Buffer)
-},{"./md5":34,"buffer":7,"inherits":35,"ripemd160":36,"sha.js":38,"stream":26}],33:[function(require,module,exports){
-(function (Buffer){
-'use strict';
-var intSize = 4;
-var zeroBuffer = new Buffer(intSize); zeroBuffer.fill(0);
-var chrsz = 8;
+ return true
+ })
-function toArray(buf, bigEndian) {
- if ((buf.length % intSize) !== 0) {
- var len = buf.length + (intSize - (buf.length % intSize));
- buf = Buffer.concat([buf, zeroBuffer], len);
+ // enforce low S values, see bip62: 'low s values in signatures'
+ if (s.compareTo(N_OVER_TWO) > 0) {
+ s = n.subtract(s)
}
- var arr = [];
- var fn = bigEndian ? buf.readInt32BE : buf.readInt32LE;
- for (var i = 0; i < buf.length; i += intSize) {
- arr.push(fn.call(buf, i));
- }
- return arr;
+ return new ECSignature(r, s)
}
-function toBuffer(arr, size, bigEndian) {
- var buf = new Buffer(size);
- var fn = bigEndian ? buf.writeInt32BE : buf.writeInt32LE;
- for (var i = 0; i < arr.length; i++) {
- fn.call(buf, arr[i], i * 4, true);
- }
- return buf;
-}
+function verify (hash, signature, Q) {
+ typeforce(types.tuple(
+ types.Hash256bit,
+ types.ECSignature,
+ types.ECPoint
+ ), arguments)
-function hash(buf, fn, hashSize, bigEndian) {
- if (!Buffer.isBuffer(buf)) buf = new Buffer(buf);
- var arr = fn(toArray(buf, bigEndian), buf.length * chrsz);
- return toBuffer(arr, hashSize, bigEndian);
-}
-exports.hash = hash;
-}).call(this,require("buffer").Buffer)
-},{"buffer":7}],34:[function(require,module,exports){
-'use strict';
-/*
- * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
- * Digest Algorithm, as defined in RFC 1321.
- * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- * Distributed under the BSD License
- * See http://pajhome.org.uk/crypt/md5 for more info.
- */
+ var n = secp256k1.n
+ var G = secp256k1.G
-var helpers = require('./helpers');
+ var r = signature.r
+ var s = signature.s
-/*
- * Calculate the MD5 of an array of little-endian words, and a bit length
- */
-function core_md5(x, len)
-{
- /* append padding */
- x[len >> 5] |= 0x80 << ((len) % 32);
- x[(((len + 64) >>> 9) << 4) + 14] = len;
+ // 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
- var a = 1732584193;
- var b = -271733879;
- var c = -1732584194;
- var d = 271733878;
+ // 1.4.2 H = Hash(M), already done by the user
+ // 1.4.3 e = H
+ var e = BigInteger.fromBuffer(hash)
- for(var i = 0; i < x.length; i += 16)
- {
- var olda = a;
- var oldb = b;
- var oldc = c;
- var oldd = d;
+ // Compute s^-1
+ var sInv = s.modInverse(n)
- a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
- d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
- c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819);
- b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
- a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
- d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426);
- c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
- b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
- a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416);
- d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
- c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
- b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
- a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682);
- d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
- c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
- b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329);
+ // 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)
- a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
- d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
- c = md5_gg(c, d, a, b, x[i+11], 14, 643717713);
- b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
- a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
- d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083);
- c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
- b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
- a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438);
- d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
- c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
- b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501);
- a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
- d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
- c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473);
- b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);
+ // 1.4.5 Compute R = (xR, yR)
+ // R = u1G + u2Q
+ var R = G.multiplyTwo(u1, Q, u2)
- a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
- d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
- c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562);
- b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
- a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
- d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353);
- c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
- b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
- a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174);
- d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
- c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
- b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189);
- a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
- d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
- c = md5_hh(c, d, a, b, x[i+15], 16, 530742520);
- b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);
+ // 1.4.5 (cont.) Enforce R is not at infinity
+ if (secp256k1.isInfinity(R)) return false
- a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
- d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415);
- c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
- b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
- a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571);
- d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
- c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
- b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
- a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359);
- d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
- c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
- b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649);
- a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
- d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
- c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259);
- b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);
+ // 1.4.6 Convert the field element R.x to an integer
+ var xR = R.affineX
- a = safe_add(a, olda);
- b = safe_add(b, oldb);
- c = safe_add(c, oldc);
- d = safe_add(d, oldd);
- }
- return Array(a, b, c, d);
+ // 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)
}
-/*
- * These functions implement the four basic operations the algorithm uses.
- */
-function md5_cmn(q, a, b, x, s, t)
-{
- return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
-}
-function md5_ff(a, b, c, d, x, s, t)
-{
- return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
-}
-function md5_gg(a, b, c, d, x, s, t)
-{
- return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
-}
-function md5_hh(a, b, c, d, x, s, t)
-{
- return md5_cmn(b ^ c ^ d, a, b, x, s, t);
-}
-function md5_ii(a, b, c, d, x, s, t)
-{
- return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
-}
+module.exports = {
+ deterministicGenerateK: deterministicGenerateK,
+ sign: sign,
+ verify: verify,
-/*
- * Add integers, wrapping at 2^32. This uses 16-bit operations internally
- * to work around bugs in some JS interpreters.
- */
-function safe_add(x, y)
-{
- var lsw = (x & 0xFFFF) + (y & 0xFFFF);
- var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
- return (msw << 16) | (lsw & 0xFFFF);
+ // TODO: remove
+ __curve: secp256k1
}
-/*
- * Bitwise rotate a 32-bit number to the left.
- */
-function bit_rol(num, cnt)
-{
- return (num << cnt) | (num >>> (32 - cnt));
-}
+},{"./ecsignature":48,"./types":78,"bigi":37,"create-hmac":85,"ecurve":89,"safe-buffer":98,"typeforce":109}],47:[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')
-module.exports = function md5(buf) {
- return helpers.hash(buf, core_md5, 16);
-};
-},{"./helpers":33}],35:[function(require,module,exports){
-arguments[4][12][0].apply(exports,arguments)
-},{"dup":12}],36:[function(require,module,exports){
-(function (Buffer){
-/*
-CryptoJS v3.1.2
-code.google.com/p/crypto-js
-(c) 2009-2013 by Jeff Mott. All rights reserved.
-code.google.com/p/crypto-js/wiki/License
-*/
-/** @preserve
-(c) 2012 by Cédric Mesnil. All rights reserved.
+var NETWORKS = require('./networks')
+var BigInteger = require('bigi')
-Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+var ecurve = require('ecurve')
+var secp256k1 = ecdsa.__curve
- - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+function ECPair (d, Q, options) {
+ if (options) {
+ typeforce({
+ compressed: types.maybe(types.Boolean),
+ network: types.maybe(types.Network)
+ }, options)
+ }
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+ options = options || {}
-// constants table
-var zl = [
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
- 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
- 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
- 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
- 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
-]
+ 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')
-var zr = [
- 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
- 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
- 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
- 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
- 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
-]
+ this.d = d
+ } else {
+ typeforce(types.ECPoint, Q)
-var sl = [
- 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
- 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
- 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
- 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
- 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
-]
+ this.__Q = Q
+ }
-var sr = [
- 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
- 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
- 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
- 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
- 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
-]
+ this.compressed = options.compressed === undefined ? true : options.compressed
+ this.network = options.network || NETWORKS.bitcoin
+}
-var hl = [0x00000000, 0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xA953FD4E]
-var hr = [0x50A28BE6, 0x5C4DD124, 0x6D703EF3, 0x7A6D76E9, 0x00000000]
+Object.defineProperty(ECPair.prototype, 'Q', {
+ get: function () {
+ if (!this.__Q && this.d) {
+ this.__Q = secp256k1.G.multiply(this.d)
+ }
-function bytesToWords (bytes) {
- var words = []
- for (var i = 0, b = 0; i < bytes.length; i++, b += 8) {
- words[b >>> 5] |= bytes[i] << (24 - b % 32)
+ return this.__Q
}
- return words
-}
+})
-function wordsToBytes (words) {
- var bytes = []
- for (var b = 0; b < words.length * 32; b += 8) {
- bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF)
- }
- return bytes
+ECPair.fromPublicKeyBuffer = function (buffer, network) {
+ var Q = ecurve.Point.decodeFrom(secp256k1, buffer)
+
+ return new ECPair(null, Q, {
+ compressed: Q.compressed,
+ network: network
+ })
}
-function processBlock (H, M, offset) {
- // swap endian
- for (var i = 0; i < 16; i++) {
- var offset_i = offset + i
- var M_offset_i = M[offset_i]
+ECPair.fromWIF = function (string, network) {
+ var decoded = wif.decode(string)
+ var version = decoded.version
- // Swap
- M[offset_i] = (
- (((M_offset_i << 8) | (M_offset_i >>> 24)) & 0x00ff00ff) |
- (((M_offset_i << 24) | (M_offset_i >>> 8)) & 0xff00ff00)
- )
- }
+ // list of networks?
+ if (types.Array(network)) {
+ network = network.filter(function (x) {
+ return version === x.wif
+ }).pop()
- // Working variables
- var al, bl, cl, dl, el
- var ar, br, cr, dr, er
+ if (!network) throw new Error('Unknown network version')
- ar = al = H[0]
- br = bl = H[1]
- cr = cl = H[2]
- dr = dl = H[3]
- er = el = H[4]
+ // otherwise, assume a network object (or default to bitcoin)
+ } else {
+ network = network || NETWORKS.bitcoin
- // computation
- var t
- for (i = 0; i < 80; i += 1) {
- t = (al + M[offset + zl[i]]) | 0
- if (i < 16) {
- t += f1(bl, cl, dl) + hl[0]
- } else if (i < 32) {
- t += f2(bl, cl, dl) + hl[1]
- } else if (i < 48) {
- t += f3(bl, cl, dl) + hl[2]
- } else if (i < 64) {
- t += f4(bl, cl, dl) + hl[3]
- } else {// if (i<80) {
- t += f5(bl, cl, dl) + hl[4]
- }
- t = t | 0
- t = rotl(t, sl[i])
- t = (t + el) | 0
- al = el
- el = dl
- dl = rotl(cl, 10)
- cl = bl
- bl = t
+ if (version !== network.wif) throw new Error('Invalid network version')
+ }
- t = (ar + M[offset + zr[i]]) | 0
- if (i < 16) {
- t += f5(br, cr, dr) + hr[0]
- } else if (i < 32) {
- t += f4(br, cr, dr) + hr[1]
- } else if (i < 48) {
- t += f3(br, cr, dr) + hr[2]
- } else if (i < 64) {
- t += f2(br, cr, dr) + hr[3]
- } else {// if (i<80) {
- t += f1(br, cr, dr) + hr[4]
- }
+ var d = BigInteger.fromBuffer(decoded.privateKey)
- t = t | 0
- t = rotl(t, sr[i])
- t = (t + er) | 0
- ar = er
- er = dr
- dr = rotl(cr, 10)
- cr = br
- br = t
- }
+ return new ECPair(d, null, {
+ compressed: decoded.compressed,
+ network: network
+ })
+}
+
+ECPair.makeRandom = function (options) {
+ options = options || {}
- // intermediate hash value
- t = (H[1] + cl + dr) | 0
- H[1] = (H[2] + dl + er) | 0
- H[2] = (H[3] + el + ar) | 0
- H[3] = (H[4] + al + br) | 0
- H[4] = (H[0] + bl + cr) | 0
- H[0] = t
+ 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)
}
-function f1 (x, y, z) {
- return ((x) ^ (y) ^ (z))
+ECPair.prototype.getAddress = function () {
+ return baddress.toBase58Check(bcrypto.hash160(this.getPublicKeyBuffer()), this.getNetwork().pubKeyHash)
}
-function f2 (x, y, z) {
- return (((x) & (y)) | ((~x) & (z)))
+ECPair.prototype.getNetwork = function () {
+ return this.network
}
-function f3 (x, y, z) {
- return (((x) | (~(y))) ^ (z))
+ECPair.prototype.getPublicKeyBuffer = function () {
+ return this.Q.getEncoded(this.compressed)
}
-function f4 (x, y, z) {
- return (((x) & (z)) | ((y) & (~(z))))
+ECPair.prototype.sign = function (hash) {
+ if (!this.d) throw new Error('Missing private key')
+
+ return ecdsa.sign(hash, this.d)
}
-function f5 (x, y, z) {
- return ((x) ^ ((y) | (~(z))))
+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)
}
-function rotl (x, n) {
- return (x << n) | (x >>> (32 - n))
+ECPair.prototype.verify = function (hash, signature) {
+ return ecdsa.verify(hash, signature, this.Q)
}
-function ripemd160 (message) {
- var H = [0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0]
+module.exports = ECPair
- if (typeof message === 'string') {
- message = new Buffer(message, 'utf8')
- }
+},{"./address":42,"./crypto":45,"./ecdsa":46,"./networks":51,"./types":78,"bigi":37,"ecurve":89,"randombytes":96,"typeforce":109,"wif":112}],48:[function(require,module,exports){
+(function (Buffer){
+var bip66 = require('bip66')
+var typeforce = require('typeforce')
+var types = require('./types')
- var m = bytesToWords(message)
+var BigInteger = require('bigi')
- var nBitsLeft = message.length * 8
- var nBitsTotal = message.length * 8
+function ECSignature (r, s) {
+ typeforce(types.tuple(types.BigInt, types.BigInt), arguments)
- // Add padding
- m[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32)
- m[(((nBitsLeft + 64) >>> 9) << 4) + 14] = (
- (((nBitsTotal << 8) | (nBitsTotal >>> 24)) & 0x00ff00ff) |
- (((nBitsTotal << 24) | (nBitsTotal >>> 8)) & 0xff00ff00)
- )
+ this.r = r
+ this.s = s
+}
- for (var i = 0; i < m.length; i += 16) {
- processBlock(H, m, i)
+ECSignature.parseCompact = function (buffer) {
+ if (buffer.length !== 65) throw new Error('Invalid signature length')
+
+ 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 r = BigInteger.fromBuffer(buffer.slice(1, 33))
+ var s = BigInteger.fromBuffer(buffer.slice(33))
+
+ return {
+ compressed: compressed,
+ i: recoveryParam,
+ signature: new ECSignature(r, s)
}
+}
- // swap endian
- for (i = 0; i < 5; i++) {
- // shortcut
- var H_i = H[i]
+ECSignature.fromDER = function (buffer) {
+ var decode = bip66.decode(buffer)
+ var r = BigInteger.fromDERInteger(decode.r)
+ var s = BigInteger.fromDERInteger(decode.s)
- // Swap
- H[i] = (((H_i << 8) | (H_i >>> 24)) & 0x00ff00ff) |
- (((H_i << 24) | (H_i >>> 8)) & 0xff00ff00)
+ 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
}
+}
- var digestbytes = wordsToBytes(H)
- return new Buffer(digestbytes)
+ECSignature.prototype.toCompact = function (i, compressed) {
+ if (compressed) {
+ i += 4
+ }
+
+ i += 27
+
+ var buffer = Buffer.alloc(65)
+ buffer.writeUInt8(i, 0)
+ this.r.toBuffer(32).copy(buffer, 1)
+ this.s.toBuffer(32).copy(buffer, 33)
+
+ return buffer
}
-module.exports = ripemd160
+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.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)
-},{"buffer":7}],37:[function(require,module,exports){
-(function (Buffer){
-// prototype class for hash functions
-function Hash (blockSize, finalSize) {
- this._block = new Buffer(blockSize)
- this._finalSize = finalSize
- this._blockSize = blockSize
- this._len = 0
- this._s = 0
+},{"./types":78,"bigi":37,"bip66":39,"buffer":4,"typeforce":109}],49:[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
}
-Hash.prototype.update = function (data, enc) {
- if (typeof data === 'string') {
- enc = enc || 'utf8'
- data = new Buffer(data, enc)
- }
+HDNode.HIGHEST_BIT = 0x80000000
+HDNode.LENGTH = 78
+HDNode.MASTER_SECRET = Buffer.from('Bitcoin seed', 'utf8')
- var l = this._len += data.length
- var s = this._s || 0
- var f = 0
- var buffer = this._block
+HDNode.fromSeedBuffer = function (seed, network) {
+ typeforce(types.tuple(types.Buffer, types.maybe(types.Network)), arguments)
- while (s < l) {
- var t = Math.min(data.length, f + this._blockSize - (s % this._blockSize))
- var ch = (t - f)
+ 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')
- for (var i = 0; i < ch; i++) {
- buffer[(s % this._blockSize) + i] = data[i + f]
- }
+ var I = createHmac('sha512', HDNode.MASTER_SECRET).update(seed).digest()
+ var IL = I.slice(0, 32)
+ var IR = I.slice(32)
- s += ch
- f += ch
+ // 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
+ })
- if ((s % this._blockSize) === 0) {
- this._update(buffer)
- }
- }
- this._s = s
+ return new HDNode(keyPair, IR)
+}
- return this
+HDNode.fromSeedHex = function (hex, network) {
+ return HDNode.fromSeedBuffer(Buffer.from(hex, 'hex'), network)
}
-Hash.prototype.digest = function (enc) {
- // Suppose the length of the message M, in bits, is l
- var l = this._len * 8
+HDNode.fromBase58 = function (string, networks) {
+ var buffer = base58check.decode(string)
+ if (buffer.length !== 78) throw new Error('Invalid buffer length')
- // Append the bit 1 to the end of the message
- this._block[this._len % this._blockSize] = 0x80
+ // 4 bytes: version bytes
+ var version = buffer.readUInt32BE(0)
+ var network
- // and then k zero bits, where k is the smallest non-negative solution to the equation (l + 1 + k) === finalSize mod blockSize
- this._block.fill(0, this._len % this._blockSize + 1)
+ // list of networks?
+ if (Array.isArray(networks)) {
+ network = networks.filter(function (x) {
+ return version === x.bip32.private ||
+ version === x.bip32.public
+ }).pop()
- if (l % (this._blockSize * 8) >= this._finalSize * 8) {
- this._update(this._block)
- this._block.fill(0)
+ if (!network) throw new Error('Unknown network version')
+
+ // otherwise, assume a network object (or default to bitcoin)
+ } else {
+ network = networks || NETWORKS.bitcoin
}
- // to this append the block which is equal to the number l written in binary
- // TODO: handle case where l is > Math.pow(2, 29)
- this._block.writeInt32BE(l, this._blockSize - 4)
+ if (version !== network.bip32.private &&
+ version !== network.bip32.public) throw new Error('Invalid network version')
- var hash = this._update(this._block) || this._hash()
+ // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ...
+ var depth = buffer[4]
- return enc ? hash.toString(enc) : hash
-}
+ // 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')
+ }
-Hash.prototype._update = function () {
- throw new Error('_update must be implemented by subclass')
+ // 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
}
-module.exports = Hash
+HDNode.prototype.getAddress = function () {
+ return this.keyPair.getAddress()
+}
-}).call(this,require("buffer").Buffer)
-},{"buffer":7}],38:[function(require,module,exports){
-var exports = module.exports = function SHA (algorithm) {
- algorithm = algorithm.toLowerCase()
+HDNode.prototype.getIdentifier = function () {
+ return bcrypto.hash160(this.keyPair.getPublicKeyBuffer())
+}
- var Algorithm = exports[algorithm]
- if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')
+HDNode.prototype.getFingerprint = function () {
+ return this.getIdentifier().slice(0, 4)
+}
- return new Algorithm()
+HDNode.prototype.getNetwork = function () {
+ return this.keyPair.getNetwork()
}
-exports.sha = require('./sha')
-exports.sha1 = require('./sha1')
-exports.sha224 = require('./sha224')
-exports.sha256 = require('./sha256')
-exports.sha384 = require('./sha384')
-exports.sha512 = require('./sha512')
+HDNode.prototype.getPublicKeyBuffer = function () {
+ return this.keyPair.getPublicKeyBuffer()
+}
-},{"./sha":39,"./sha1":40,"./sha224":41,"./sha256":42,"./sha384":43,"./sha512":44}],39:[function(require,module,exports){
-(function (Buffer){
-/*
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined
- * in FIPS PUB 180-1
- * This source code is derived from sha1.js of the same repository.
- * The difference between SHA-0 and SHA-1 is just a bitwise rotate left
- * operation was added.
- */
+HDNode.prototype.neutered = function () {
+ var neuteredKeyPair = new ECPair(null, this.keyPair.Q, {
+ network: this.keyPair.network
+ })
-var inherits = require('inherits')
-var Hash = require('./hash')
+ var neutered = new HDNode(neuteredKeyPair, this.chainCode)
+ neutered.depth = this.depth
+ neutered.index = this.index
+ neutered.parentFingerprint = this.parentFingerprint
-var W = new Array(80)
+ return neutered
+}
-function Sha () {
- this.init()
- this._w = W
+HDNode.prototype.sign = function (hash) {
+ return this.keyPair.sign(hash)
+}
- Hash.call(this, 64, 56)
+HDNode.prototype.verify = function (hash, signature) {
+ return this.keyPair.verify(hash, signature)
}
-inherits(Sha, Hash)
+HDNode.prototype.toBase58 = function (__isPrivate) {
+ if (__isPrivate !== undefined) throw new TypeError('Unsupported argument in 2.0.0')
-Sha.prototype.init = function () {
- this._a = 0x67452301 | 0
- this._b = 0xefcdab89 | 0
- this._c = 0x98badcfe | 0
- this._d = 0x10325476 | 0
- this._e = 0xc3d2e1f0 | 0
+ // Version
+ var network = this.keyPair.network
+ var version = (!this.isNeutered()) ? network.bip32.private : network.bip32.public
+ var buffer = Buffer.allocUnsafe(78)
- return this
-}
+ // 4 bytes: version bytes
+ buffer.writeUInt32BE(version, 0)
-/*
- * Bitwise rotate a 32-bit number to the left.
- */
-function rol (num, cnt) {
- return (num << cnt) | (num >>> (32 - cnt))
+ // 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)
}
-Sha.prototype._update = function (M) {
- var W = this._w
+// 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 a = this._a
- var b = this._b
- var c = this._c
- var d = this._d
- var e = this._e
+ var isHardened = index >= HDNode.HIGHEST_BIT
+ var data = Buffer.allocUnsafe(37)
- var j = 0, k
+ // Hardened child
+ if (isHardened) {
+ if (this.isNeutered()) throw new TypeError('Could not derive hardened child key')
- /*
- * SHA-1 has a bitwise rotate left operation. But, SHA is not
- * function calcW() { return rol(W[j - 3] ^ W[j - 8] ^ W[j - 14] ^ W[j - 16], 1) }
- */
- function calcW () { return W[j - 3] ^ W[j - 8] ^ W[j - 14] ^ W[j - 16] }
- function loop (w, f) {
- W[j] = w
+ // data = 0x00 || ser256(kpar) || ser32(index)
+ data[0] = 0x00
+ this.keyPair.d.toBuffer(32).copy(data, 1)
+ data.writeUInt32BE(index, 33)
- var t = rol(a, 5) + f + e + w + k
+ // Normal child
+ } else {
+ // data = serP(point(kpar)) || ser32(index)
+ // = serP(Kpar) || ser32(index)
+ this.keyPair.getPublicKeyBuffer().copy(data, 0)
+ data.writeUInt32BE(index, 33)
+ }
- e = d
- d = c
- c = rol(b, 30)
- b = a
- a = t
- j++
+ 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)
}
- k = 1518500249
- while (j < 16) loop(M.readInt32BE(j * 4), (b & c) | ((~b) & d))
- while (j < 20) loop(calcW(), (b & c) | ((~b) & d))
- k = 1859775393
- while (j < 40) loop(calcW(), b ^ c ^ d)
- k = -1894007588
- while (j < 60) loop(calcW(), (b & c) | (b & d) | (c & d))
- k = -899497514
- while (j < 80) loop(calcW(), b ^ c ^ d)
+ // 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)
- this._a = (a + this._a) | 0
- this._b = (b + this._b) | 0
- this._c = (c + this._c) | 0
- this._d = (d + this._d) | 0
- this._e = (e + this._e) | 0
+ // 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
}
-Sha.prototype._hash = function () {
- var H = new Buffer(20)
+HDNode.prototype.deriveHardened = function (index) {
+ typeforce(types.UInt31, index)
- H.writeInt32BE(this._a | 0, 0)
- H.writeInt32BE(this._b | 0, 4)
- H.writeInt32BE(this._c | 0, 8)
- H.writeInt32BE(this._d | 0, 12)
- H.writeInt32BE(this._e | 0, 16)
+ // Only derives hardened private keys by default
+ return this.derive(index + HDNode.HIGHEST_BIT)
+}
- return H
+// Private === not neutered
+// Public === neutered
+HDNode.prototype.isNeutered = function () {
+ return !(this.keyPair.d)
}
-module.exports = Sha
+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')
+ }
-}).call(this,require("buffer").Buffer)
-},{"./hash":37,"buffer":7,"inherits":35}],40:[function(require,module,exports){
-(function (Buffer){
-/*
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
- * in FIPS PUB 180-1
- * Version 2.1a Copyright Paul Johnston 2000 - 2002.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- * Distributed under the BSD License
- * See http://pajhome.org.uk/crypt/md5 for details.
- */
+ splitPath = splitPath.slice(1)
+ }
-var inherits = require('inherits')
-var Hash = require('./hash')
+ 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)
+}
-var W = new Array(80)
+module.exports = HDNode
-function Sha1 () {
- this.init()
- this._w = W
+},{"./crypto":45,"./ecpair":47,"./networks":51,"./types":78,"bigi":37,"bs58check":80,"create-hmac":85,"ecurve":89,"safe-buffer":98,"typeforce":109}],50:[function(require,module,exports){
+module.exports = {
+ Block: require('./block'),
+ ECPair: require('./ecpair'),
+ ECSignature: require('./ecsignature'),
+ HDNode: require('./hdnode'),
+ Transaction: require('./transaction'),
+ TransactionBuilder: require('./transaction_builder'),
- Hash.call(this, 64, 56)
+ address: require('./address'),
+ bufferutils: require('./bufferutils'), // TODO: remove in 4.0.0
+ crypto: require('./crypto'),
+ networks: require('./networks'),
+ opcodes: require('bitcoin-ops'),
+ script: require('./script')
}
-inherits(Sha1, Hash)
+},{"./address":42,"./block":43,"./bufferutils":44,"./crypto":45,"./ecpair":47,"./ecsignature":48,"./hdnode":49,"./networks":51,"./script":52,"./transaction":76,"./transaction_builder":77,"bitcoin-ops":40}],51:[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
-Sha1.prototype.init = function () {
- this._a = 0x67452301 | 0
- this._b = 0xefcdab89 | 0
- this._c = 0x98badcfe | 0
- this._d = 0x10325476 | 0
- this._e = 0xc3d2e1f0 | 0
+module.exports = {
+ bitcoin: {
+ messagePrefix: '\x18Bitcoin Signed Message:\n',
+ bip32: {
+ public: 0x0488b21e,
+ private: 0x0488ade4
+ },
+ pubKeyHash: 0x00,
+ scriptHash: 0x05,
+ wif: 0x80
+ },
+ testnet: {
+ messagePrefix: '\x18Bitcoin Signed Message:\n',
+ 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
+ }
+}
- return this
+},{}],52:[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))
}
-/*
- * Bitwise rotate a 32-bit number to the left.
- */
-function rol (num, cnt) {
- return (num << cnt) | (num >>> (32 - cnt))
+function isPushOnlyChunk (value) {
+ return types.Buffer(value) || isOPInt(value)
}
-Sha1.prototype._update = function (M) {
- var W = this._w
+function isPushOnly (value) {
+ return types.Array(value) && value.every(isPushOnlyChunk)
+}
- var a = this._a
- var b = this._b
- var c = this._c
- var d = this._d
- var e = this._e
+function compile (chunks) {
+ // TODO: remove me
+ if (Buffer.isBuffer(chunks)) return chunks
- var j = 0, k
+ typeforce(types.Array, chunks)
- function calcW () { return rol(W[j - 3] ^ W[j - 8] ^ W[j - 14] ^ W[j - 16], 1) }
- function loop (w, f) {
- W[j] = w
+ var bufferSize = chunks.reduce(function (accum, chunk) {
+ // data chunk
+ if (Buffer.isBuffer(chunk)) {
+ // adhere to BIP62.3, minimal push policy
+ if (chunk.length === 1 && (chunk[0] === 0x81 || (chunk[0] >= 1 && chunk[0] <= 16))) {
+ return accum + 1
+ }
- var t = rol(a, 5) + f + e + w + k
+ return accum + pushdata.encodingLength(chunk.length) + chunk.length
+ }
- e = d
- d = c
- c = rol(b, 30)
- b = a
- a = t
- j++
- }
+ // opcode
+ return accum + 1
+ }, 0.0)
- k = 1518500249
- while (j < 16) loop(M.readInt32BE(j * 4), (b & c) | ((~b) & d))
- while (j < 20) loop(calcW(), (b & c) | ((~b) & d))
- k = 1859775393
- while (j < 40) loop(calcW(), b ^ c ^ d)
- k = -1894007588
- while (j < 60) loop(calcW(), (b & c) | (b & d) | (c & d))
- k = -899497514
- while (j < 80) loop(calcW(), b ^ c ^ d)
+ var buffer = Buffer.allocUnsafe(bufferSize)
+ var offset = 0
- this._a = (a + this._a) | 0
- this._b = (b + this._b) | 0
- this._c = (c + this._c) | 0
- this._d = (d + this._d) | 0
- this._e = (e + this._e) | 0
-}
+ chunks.forEach(function (chunk) {
+ // data chunk
+ if (Buffer.isBuffer(chunk)) {
+ // adhere to BIP62.3, minimal push policy
+ if (chunk.length === 1 && chunk[0] >= 1 && chunk[0] <= 16) {
+ var opcode = OP_INT_BASE + chunk[0]
+ buffer.writeUInt8(opcode, offset)
+ offset += 1
+ return
+ }
-Sha1.prototype._hash = function () {
- var H = new Buffer(20)
+ if (chunk.length === 1 && chunk[0] === 0x81) {
+ buffer.writeUInt8(OPS.OP_1NEGATE, offset)
+ offset += 1
+ return
+ }
- H.writeInt32BE(this._a | 0, 0)
- H.writeInt32BE(this._b | 0, 4)
- H.writeInt32BE(this._c | 0, 8)
- H.writeInt32BE(this._d | 0, 12)
- H.writeInt32BE(this._e | 0, 16)
+ offset += pushdata.encode(buffer, chunk.length, offset)
- return H
+ 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
}
-module.exports = Sha1
+function decompile (buffer) {
+ // TODO: remove me
+ if (types.Array(buffer)) return buffer
-}).call(this,require("buffer").Buffer)
-},{"./hash":37,"buffer":7,"inherits":35}],41:[function(require,module,exports){
-(function (Buffer){
-/**
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
- * in FIPS 180-2
- * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- *
- */
+ typeforce(types.Buffer, buffer)
-var inherits = require('inherits')
-var Sha256 = require('./sha256')
-var Hash = require('./hash')
+ var chunks = []
+ var i = 0
-var W = new Array(64)
+ while (i < buffer.length) {
+ var opcode = buffer[i]
-function Sha224 () {
- this.init()
+ // data chunk
+ if ((opcode > OPS.OP_0) && (opcode <= OPS.OP_PUSHDATA4)) {
+ var d = pushdata.decode(buffer, i)
- this._w = W // new Array(64)
+ // did reading a pushDataInt fail? empty script
+ if (d === null) return []
+ i += d.size
- Hash.call(this, 64, 56)
-}
+ // 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
+
+ chunks.push(data)
-inherits(Sha224, Sha256)
+ // opcode
+ } else {
+ chunks.push(opcode)
-Sha224.prototype.init = function () {
- this._a = 0xc1059ed8 | 0
- this._b = 0x367cd507 | 0
- this._c = 0x3070dd17 | 0
- this._d = 0xf70e5939 | 0
- this._e = 0xffc00b31 | 0
- this._f = 0x68581511 | 0
- this._g = 0x64f98fa7 | 0
- this._h = 0xbefa4fa4 | 0
+ i += 1
+ }
+ }
- return this
+ return chunks
}
-Sha224.prototype._hash = function () {
- var H = new Buffer(28)
+function toASM (chunks) {
+ if (Buffer.isBuffer(chunks)) {
+ chunks = decompile(chunks)
+ }
- H.writeInt32BE(this._a, 0)
- H.writeInt32BE(this._b, 4)
- H.writeInt32BE(this._c, 8)
- H.writeInt32BE(this._d, 12)
- H.writeInt32BE(this._e, 16)
- H.writeInt32BE(this._f, 20)
- H.writeInt32BE(this._g, 24)
+ return chunks.map(function (chunk) {
+ // data?
+ if (Buffer.isBuffer(chunk)) return chunk.toString('hex')
- return H
+ // opcode!
+ return REVERSE_OPS[chunk]
+ }).join(' ')
}
-module.exports = Sha224
-
-}).call(this,require("buffer").Buffer)
-},{"./hash":37,"./sha256":42,"buffer":7,"inherits":35}],42:[function(require,module,exports){
-(function (Buffer){
-/**
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
- * in FIPS 180-2
- * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- *
- */
-
-var inherits = require('inherits')
-var Hash = require('./hash')
+function fromASM (asm) {
+ typeforce(types.String, asm)
-var K = [
- 0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
- 0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
- 0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
- 0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
- 0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
- 0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
- 0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
- 0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
- 0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
- 0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
- 0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
- 0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
- 0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
- 0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
- 0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
- 0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
-]
+ return compile(asm.split(' ').map(function (chunkStr) {
+ // opcode?
+ if (OPS[chunkStr] !== undefined) return OPS[chunkStr]
+ typeforce(types.Hex, chunkStr)
-var W = new Array(64)
+ // data!
+ return Buffer.from(chunkStr, 'hex')
+ }))
+}
-function Sha256 () {
- this.init()
+function toStack (chunks) {
+ chunks = decompile(chunks)
+ typeforce(isPushOnly, chunks)
- this._w = W // new Array(64)
+ return chunks.map(function (op) {
+ if (Buffer.isBuffer(op)) return op
+ if (op === OPS.OP_0) return Buffer.allocUnsafe(0)
- Hash.call(this, 64, 56)
+ return scriptNumber.encode(op - OP_INT_BASE)
+ })
}
-inherits(Sha256, Hash)
+function isCanonicalPubKey (buffer) {
+ if (!Buffer.isBuffer(buffer)) return false
+ if (buffer.length < 33) return false
-Sha256.prototype.init = function () {
- this._a = 0x6a09e667 | 0
- this._b = 0xbb67ae85 | 0
- this._c = 0x3c6ef372 | 0
- this._d = 0xa54ff53a | 0
- this._e = 0x510e527f | 0
- this._f = 0x9b05688c | 0
- this._g = 0x1f83d9ab | 0
- this._h = 0x5be0cd19 | 0
+ switch (buffer[0]) {
+ case 0x02:
+ case 0x03:
+ return buffer.length === 33
+ case 0x04:
+ return buffer.length === 65
+ }
- return this
+ return false
}
-function S (X, n) {
- return (X >>> n) | (X << (32 - n))
-}
+function isDefinedHashType (hashType) {
+ var hashTypeMod = hashType & ~0x80
-function R (X, n) {
- return (X >>> n)
+// return hashTypeMod > SIGHASH_ALL && hashTypeMod < SIGHASH_SINGLE
+ return hashTypeMod > 0x00 && hashTypeMod < 0x04
}
-function Ch (x, y, z) {
- return ((x & y) ^ ((~x) & z))
-}
+function isCanonicalSignature (buffer) {
+ if (!Buffer.isBuffer(buffer)) return false
+ if (!isDefinedHashType(buffer[buffer.length - 1])) return false
-function Maj (x, y, z) {
- return ((x & y) ^ (x & z) ^ (y & z))
+ return bip66.check(buffer.slice(0, -1))
}
-function Sigma0256 (x) {
- return (S(x, 2) ^ S(x, 13) ^ S(x, 22))
-}
+module.exports = {
+ compile: compile,
+ decompile: decompile,
+ fromASM: fromASM,
+ toASM: toASM,
+ toStack: toStack,
-function Sigma1256 (x) {
- return (S(x, 6) ^ S(x, 11) ^ S(x, 25))
-}
+ number: require('./script_number'),
-function Gamma0256 (x) {
- return (S(x, 7) ^ S(x, 18) ^ R(x, 3))
+ isCanonicalPubKey: isCanonicalPubKey,
+ isCanonicalSignature: isCanonicalSignature,
+ isPushOnly: isPushOnly,
+ isDefinedHashType: isDefinedHashType
}
-function Gamma1256 (x) {
- return (S(x, 17) ^ S(x, 19) ^ R(x, 10))
+var templates = require('./templates')
+for (var key in templates) {
+ module.exports[key] = templates[key]
}
-Sha256.prototype._update = function (M) {
- var W = this._w
+},{"./script_number":53,"./templates":54,"./types":78,"bip66":39,"bitcoin-ops":40,"bitcoin-ops/map":41,"pushdata-bitcoin":95,"safe-buffer":98,"typeforce":109}],53:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
- var a = this._a | 0
- var b = this._b | 0
- var c = this._c | 0
- var d = this._d | 0
- var e = this._e | 0
- var f = this._f | 0
- var g = this._g | 0
- var h = this._h | 0
+function decode (buffer, maxLength, minimal) {
+ maxLength = maxLength || 4
+ minimal = minimal === undefined ? true : minimal
- var j = 0
+ 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')
+ }
+ }
- function calcW () { return Gamma1256(W[j - 2]) + W[j - 7] + Gamma0256(W[j - 15]) + W[j - 16] }
- function loop (w) {
- W[j] = w
+ // 40-bit
+ if (length === 5) {
+ var a = buffer.readUInt32LE(0)
+ var b = buffer.readUInt8(4)
- var T1 = h + Sigma1256(e) + Ch(e, f, g) + K[j] + w
- var T2 = Sigma0256(a) + Maj(a, b, c)
+ if (b & 0x80) return -(((b & ~0x80) * 0x100000000) + a)
+ return (b * 0x100000000) + a
+ }
- h = g
- g = f
- f = e
- e = d + T1
- d = c
- c = b
- b = a
- a = T1 + T2
+ var result = 0
- j++
+ // 32-bit / 24-bit / 16-bit / 8-bit
+ for (var i = 0; i < length; ++i) {
+ result |= buffer[i] << (8 * i)
}
- while (j < 16) loop(M.readInt32BE(j * 4))
- while (j < 64) loop(calcW())
+ if (buffer[length - 1] & 0x80) return -(result & ~(0x80 << (8 * (length - 1))))
+ return result
+}
- this._a = (a + this._a) | 0
- this._b = (b + this._b) | 0
- this._c = (c + this._c) | 0
- this._d = (d + this._d) | 0
- this._e = (e + this._e) | 0
- this._f = (f + this._f) | 0
- this._g = (g + this._g) | 0
- this._h = (h + this._h) | 0
+function scriptNumSize (i) {
+ return i > 0x7fffffff ? 5
+ : i > 0x7fffff ? 4
+ : i > 0x7fff ? 3
+ : i > 0x7f ? 2
+ : i > 0x00 ? 1
+ : 0
}
-Sha256.prototype._hash = function () {
- var H = new Buffer(32)
+function encode (number) {
+ var value = Math.abs(number)
+ var size = scriptNumSize(value)
+ var buffer = Buffer.allocUnsafe(size)
+ var negative = number < 0
- H.writeInt32BE(this._a, 0)
- H.writeInt32BE(this._b, 4)
- H.writeInt32BE(this._c, 8)
- H.writeInt32BE(this._d, 12)
- H.writeInt32BE(this._e, 16)
- H.writeInt32BE(this._f, 20)
- H.writeInt32BE(this._g, 24)
- H.writeInt32BE(this._h, 28)
+ for (var i = 0; i < size; ++i) {
+ buffer.writeUInt8(value & 0xff, i)
+ value >>= 8
+ }
- return H
+ if (buffer[size - 1] & 0x80) {
+ buffer.writeUInt8(negative ? 0x80 : 0x00, size - 1)
+ } else if (negative) {
+ buffer[size - 1] |= 0x80
+ }
+
+ return buffer
}
-module.exports = Sha256
+module.exports = {
+ decode: decode,
+ encode: encode
+}
-}).call(this,require("buffer").Buffer)
-},{"./hash":37,"buffer":7,"inherits":35}],43:[function(require,module,exports){
-(function (Buffer){
-var inherits = require('inherits')
-var SHA512 = require('./sha512')
-var Hash = require('./hash')
+},{"safe-buffer":98}],54:[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'
+}
-var W = new Array(160)
+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
-function Sha384 () {
- this.init()
- this._w = W
+ // 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
- Hash.call(this, 128, 112)
+ return types.NONSTANDARD
}
-inherits(Sha384, SHA512)
+function classifyInput (script, allowIncomplete) {
+ // XXX: optimization, below functions .decompile before use
+ var chunks = decompile(script)
-Sha384.prototype.init = function () {
- this._a = 0xcbbb9d5d | 0
- this._b = 0x629a292a | 0
- this._c = 0x9159015a | 0
- this._d = 0x152fecd8 | 0
- this._e = 0x67332667 | 0
- this._f = 0x8eb44a87 | 0
- this._g = 0xdb0c2e0d | 0
- this._h = 0x47b5481d | 0
-
- this._al = 0xc1059ed8 | 0
- this._bl = 0x367cd507 | 0
- this._cl = 0x3070dd17 | 0
- this._dl = 0xf70e5939 | 0
- this._el = 0xffc00b31 | 0
- this._fl = 0x68581511 | 0
- this._gl = 0x64f98fa7 | 0
- this._hl = 0xbefa4fa4 | 0
+ 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 this
+ return types.NONSTANDARD
}
-Sha384.prototype._hash = function () {
- var H = new Buffer(48)
+function classifyWitness (script, allowIncomplete) {
+ // XXX: optimization, below functions .decompile before use
+ var chunks = decompile(script)
- function writeInt64BE (h, l, offset) {
- H.writeInt32BE(h, offset)
- H.writeInt32BE(l, offset + 4)
- }
+ if (witnessPubKeyHash.input.check(chunks)) return types.P2WPKH
+ if (witnessScriptHash.input.check(chunks, allowIncomplete)) return types.P2WSH
- writeInt64BE(this._a, this._al, 0)
- writeInt64BE(this._b, this._bl, 8)
- writeInt64BE(this._c, this._cl, 16)
- writeInt64BE(this._d, this._dl, 24)
- writeInt64BE(this._e, this._el, 32)
- writeInt64BE(this._f, this._fl, 40)
+ return types.NONSTANDARD
+}
- return H
+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":52,"./multisig":55,"./nulldata":58,"./pubkey":59,"./pubkeyhash":62,"./scripthash":65,"./witnesscommitment":68,"./witnesspubkeyhash":70,"./witnessscripthash":73}],55:[function(require,module,exports){
+module.exports = {
+ input: require('./input'),
+ output: require('./output')
}
-module.exports = Sha384
+},{"./input":56,"./output":57}],56:[function(require,module,exports){
+// OP_0 [signatures ...]
-}).call(this,require("buffer").Buffer)
-},{"./hash":37,"./sha512":44,"buffer":7,"inherits":35}],44:[function(require,module,exports){
-(function (Buffer){
-var inherits = require('inherits')
-var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
+var bscript = require('../../script')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
-var K = [
- 0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
- 0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
- 0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
- 0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
- 0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
- 0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
- 0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
- 0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
- 0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
- 0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
- 0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
- 0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
- 0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
- 0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
- 0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
- 0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
- 0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
- 0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
- 0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
- 0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
- 0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
- 0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
- 0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
- 0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
- 0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
- 0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
- 0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
- 0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
- 0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
- 0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
- 0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
- 0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
- 0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
- 0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
- 0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
- 0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
- 0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
- 0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
- 0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
- 0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
-]
+function partialSignature (value) {
+ return value === OPS.OP_0 || bscript.isCanonicalSignature(value)
+}
-var W = new Array(160)
+function check (script, allowIncomplete) {
+ var chunks = bscript.decompile(script)
+ if (chunks.length < 2) return false
+ if (chunks[0] !== OPS.OP_0) return false
-function Sha512 () {
- this.init()
- this._w = W
+ if (allowIncomplete) {
+ return chunks.slice(1).every(partialSignature)
+ }
- Hash.call(this, 128, 112)
+ return chunks.slice(1).every(bscript.isCanonicalSignature)
}
+check.toJSON = function () { return 'multisig input' }
-inherits(Sha512, Hash)
+var EMPTY_BUFFER = Buffer.allocUnsafe(0)
-Sha512.prototype.init = function () {
- this._a = 0x6a09e667 | 0
- this._b = 0xbb67ae85 | 0
- this._c = 0x3c6ef372 | 0
- this._d = 0xa54ff53a | 0
- this._e = 0x510e527f | 0
- this._f = 0x9b05688c | 0
- this._g = 0x1f83d9ab | 0
- this._h = 0x5be0cd19 | 0
-
- this._al = 0xf3bcc908 | 0
- this._bl = 0x84caa73b | 0
- this._cl = 0xfe94f82b | 0
- this._dl = 0x5f1d36f1 | 0
- this._el = 0xade682d1 | 0
- this._fl = 0x2b3e6c1f | 0
- this._gl = 0xfb41bd6b | 0
- this._hl = 0x137e2179 | 0
+function encodeStack (signatures, scriptPubKey) {
+ typeforce([partialSignature], signatures)
- return this
-}
+ if (scriptPubKey) {
+ var scriptData = bscript.multisig.output.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')
+ }
+ }
-function S (X, Xl, n) {
- return (X >>> n) | (Xl << (32 - n))
+ return [].concat(EMPTY_BUFFER, signatures)
}
-function Ch (x, y, z) {
- return ((x & y) ^ ((~x) & z))
+function encode (signatures, scriptPubKey) {
+ return bscript.compile(encodeStack(signatures, scriptPubKey))
}
-function Maj (x, y, z) {
- return ((x & y) ^ (x & z) ^ (y & z))
+function decodeStack (stack, allowIncomplete) {
+ typeforce(check, stack, allowIncomplete)
+ return stack.slice(1)
}
-Sha512.prototype._update = function (M) {
- var W = this._w
+function decode (buffer, allowIncomplete) {
+ var stack = bscript.decompile(buffer)
+ return decodeStack(stack, allowIncomplete)
+}
- var a = this._a | 0
- var b = this._b | 0
- var c = this._c | 0
- var d = this._d | 0
- var e = this._e | 0
- var f = this._f | 0
- var g = this._g | 0
- var h = this._h | 0
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
+}
- var al = this._al | 0
- var bl = this._bl | 0
- var cl = this._cl | 0
- var dl = this._dl | 0
- var el = this._el | 0
- var fl = this._fl | 0
- var gl = this._gl | 0
- var hl = this._hl | 0
+},{"../../script":52,"bitcoin-ops":40,"safe-buffer":98,"typeforce":109}],57:[function(require,module,exports){
+// m [pubKeys ...] n OP_CHECKMULTISIG
- var i = 0, j = 0
- var Wi, Wil
- function calcW () {
- var x = W[j - 15 * 2]
- var xl = W[j - 15 * 2 + 1]
- var gamma0 = S(x, xl, 1) ^ S(x, xl, 8) ^ (x >>> 7)
- var gamma0l = S(xl, x, 1) ^ S(xl, x, 8) ^ S(xl, x, 7)
+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
+ })
- x = W[j - 2 * 2]
- xl = W[j - 2 * 2 + 1]
- var gamma1 = S(x, xl, 19) ^ S(xl, x, 29) ^ (x >>> 6)
- var gamma1l = S(xl, x, 19) ^ S(x, xl, 29) ^ S(xl, x, 6)
+ var n = pubKeys.length
+ if (n < m) throw new TypeError('Not enough pubKeys provided')
- // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
- var Wi7 = W[j - 7 * 2]
- var Wi7l = W[j - 7 * 2 + 1]
+ return bscript.compile([].concat(
+ OP_INT_BASE + m,
+ pubKeys,
+ OP_INT_BASE + n,
+ OPS.OP_CHECKMULTISIG
+ ))
+}
- var Wi16 = W[j - 16 * 2]
- var Wi16l = W[j - 16 * 2 + 1]
+function decode (buffer, allowIncomplete) {
+ var chunks = bscript.decompile(buffer)
+ typeforce(check, chunks, allowIncomplete)
- Wil = gamma0l + Wi7l
- Wi = gamma0 + Wi7 + ((Wil >>> 0) < (gamma0l >>> 0) ? 1 : 0)
- Wil = Wil + gamma1l
- Wi = Wi + gamma1 + ((Wil >>> 0) < (gamma1l >>> 0) ? 1 : 0)
- Wil = Wil + Wi16l
- Wi = Wi + Wi16 + ((Wil >>> 0) < (Wi16l >>> 0) ? 1 : 0)
+ return {
+ m: chunks[0] - OP_INT_BASE,
+ pubKeys: chunks.slice(1, -2)
}
+}
- function loop () {
- W[j] = Wi
- W[j + 1] = Wil
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
- var maj = Maj(a, b, c)
- var majl = Maj(al, bl, cl)
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],58:[function(require,module,exports){
+// OP_RETURN {data}
- var sigma0h = S(a, al, 28) ^ S(al, a, 2) ^ S(al, a, 7)
- var sigma0l = S(al, a, 28) ^ S(a, al, 2) ^ S(a, al, 7)
- var sigma1h = S(e, el, 14) ^ S(e, el, 18) ^ S(el, e, 9)
- var sigma1l = S(el, e, 14) ^ S(el, e, 18) ^ S(e, el, 9)
+var bscript = require('../script')
+var types = require('../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
- // t1 = h + sigma1 + ch + K[i] + W[i]
- var Ki = K[j]
- var Kil = K[j + 1]
+function check (script) {
+ var buffer = bscript.compile(script)
- var ch = Ch(e, f, g)
- var chl = Ch(el, fl, gl)
+ return buffer.length > 1 &&
+ buffer[0] === OPS.OP_RETURN
+}
+check.toJSON = function () { return 'null data output' }
- var t1l = hl + sigma1l
- var t1 = h + sigma1h + ((t1l >>> 0) < (hl >>> 0) ? 1 : 0)
- t1l = t1l + chl
- t1 = t1 + ch + ((t1l >>> 0) < (chl >>> 0) ? 1 : 0)
- t1l = t1l + Kil
- t1 = t1 + Ki + ((t1l >>> 0) < (Kil >>> 0) ? 1 : 0)
- t1l = t1l + Wil
- t1 = t1 + Wi + ((t1l >>> 0) < (Wil >>> 0) ? 1 : 0)
+function encode (data) {
+ typeforce(types.Buffer, data)
- // t2 = sigma0 + maj
- var t2l = sigma0l + majl
- var t2 = sigma0h + maj + ((t2l >>> 0) < (sigma0l >>> 0) ? 1 : 0)
+ return bscript.compile([OPS.OP_RETURN, data])
+}
- h = g
- hl = gl
- g = f
- gl = fl
- f = e
- fl = el
- el = (dl + t1l) | 0
- e = (d + t1 + ((el >>> 0) < (dl >>> 0) ? 1 : 0)) | 0
- d = c
- dl = cl
- c = b
- cl = bl
- b = a
- bl = al
- al = (t1l + t2l) | 0
- a = (t1 + t2 + ((al >>> 0) < (t1l >>> 0) ? 1 : 0)) | 0
+function decode (buffer) {
+ typeforce(check, buffer)
+
+ return buffer.slice(2)
+}
- i++
- j += 2
+module.exports = {
+ output: {
+ check: check,
+ decode: decode,
+ encode: encode
}
+}
- while (i < 16) {
- Wi = M.readInt32BE(j * 4)
- Wil = M.readInt32BE(j * 4 + 4)
+},{"../script":52,"../types":78,"bitcoin-ops":40,"typeforce":109}],59:[function(require,module,exports){
+arguments[4][55][0].apply(exports,arguments)
+},{"./input":60,"./output":61,"dup":55}],60:[function(require,module,exports){
+// {signature}
- loop()
- }
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
- while (i < 80) {
- calcW()
- loop()
- }
+function check (script) {
+ var chunks = bscript.decompile(script)
- this._al = (this._al + al) | 0
- this._bl = (this._bl + bl) | 0
- this._cl = (this._cl + cl) | 0
- this._dl = (this._dl + dl) | 0
- this._el = (this._el + el) | 0
- this._fl = (this._fl + fl) | 0
- this._gl = (this._gl + gl) | 0
- this._hl = (this._hl + hl) | 0
+ return chunks.length === 1 &&
+ bscript.isCanonicalSignature(chunks[0])
+}
+check.toJSON = function () { return 'pubKey input' }
- this._a = (this._a + a + ((this._al >>> 0) < (al >>> 0) ? 1 : 0)) | 0
- this._b = (this._b + b + ((this._bl >>> 0) < (bl >>> 0) ? 1 : 0)) | 0
- this._c = (this._c + c + ((this._cl >>> 0) < (cl >>> 0) ? 1 : 0)) | 0
- this._d = (this._d + d + ((this._dl >>> 0) < (dl >>> 0) ? 1 : 0)) | 0
- this._e = (this._e + e + ((this._el >>> 0) < (el >>> 0) ? 1 : 0)) | 0
- this._f = (this._f + f + ((this._fl >>> 0) < (fl >>> 0) ? 1 : 0)) | 0
- this._g = (this._g + g + ((this._gl >>> 0) < (gl >>> 0) ? 1 : 0)) | 0
- this._h = (this._h + h + ((this._hl >>> 0) < (hl >>> 0) ? 1 : 0)) | 0
+function encodeStack (signature) {
+ typeforce(types.Buffer, signature)
+ return [signature]
}
-Sha512.prototype._hash = function () {
- var H = new Buffer(64)
+function encode (signature) {
+ return bscript.compile(encodeStack(signature))
+}
- function writeInt64BE (h, l, offset) {
- H.writeInt32BE(h, offset)
- H.writeInt32BE(l, offset + 4)
- }
+function decodeStack (stack) {
+ typeforce(check, stack)
+ return stack[0]
+}
- writeInt64BE(this._a, this._al, 0)
- writeInt64BE(this._b, this._bl, 8)
- writeInt64BE(this._c, this._cl, 16)
- writeInt64BE(this._d, this._dl, 24)
- writeInt64BE(this._e, this._el, 32)
- writeInt64BE(this._f, this._fl, 40)
- writeInt64BE(this._g, this._gl, 48)
- writeInt64BE(this._h, this._hl, 56)
+function decode (buffer) {
+ var stack = bscript.decompile(buffer)
+ return decodeStack(stack)
+}
- return H
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
}
-module.exports = Sha512
+},{"../../script":52,"../../types":78,"typeforce":109}],61:[function(require,module,exports){
+// {pubKey} OP_CHECKSIG
-}).call(this,require("buffer").Buffer)
-},{"./hash":37,"buffer":7,"inherits":35}],45:[function(require,module,exports){
-(function (Buffer){
-'use strict';
-var createHash = require('create-hash/browser');
-var inherits = require('inherits')
+var bscript = require('../../script')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
-var Transform = require('stream').Transform
+function check (script) {
+ var chunks = bscript.decompile(script)
-var ZEROS = new Buffer(128)
-ZEROS.fill(0)
+ return chunks.length === 2 &&
+ bscript.isCanonicalPubKey(chunks[0]) &&
+ chunks[1] === OPS.OP_CHECKSIG
+}
+check.toJSON = function () { return 'pubKey output' }
-function Hmac(alg, key) {
- Transform.call(this)
+function encode (pubKey) {
+ typeforce(bscript.isCanonicalPubKey, pubKey)
- if (typeof key === 'string') {
- key = new Buffer(key)
- }
+ return bscript.compile([pubKey, OPS.OP_CHECKSIG])
+}
- var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64
+function decode (buffer) {
+ var chunks = bscript.decompile(buffer)
+ typeforce(check, chunks)
- this._alg = alg
- this._key = key
+ return chunks[0]
+}
- if (key.length > blocksize) {
- key = createHash(alg).update(key).digest()
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
- } else if (key.length < blocksize) {
- key = Buffer.concat([key, ZEROS], blocksize)
- }
+},{"../../script":52,"bitcoin-ops":40,"typeforce":109}],62:[function(require,module,exports){
+arguments[4][55][0].apply(exports,arguments)
+},{"./input":63,"./output":64,"dup":55}],63:[function(require,module,exports){
+// {signature} {pubKey}
- var ipad = this._ipad = new Buffer(blocksize)
- var opad = this._opad = new Buffer(blocksize)
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
- for (var i = 0; i < blocksize; i++) {
- ipad[i] = key[i] ^ 0x36
- opad[i] = key[i] ^ 0x5C
- }
+function check (script) {
+ var chunks = bscript.decompile(script)
- this._hash = createHash(alg).update(ipad)
+ return chunks.length === 2 &&
+ bscript.isCanonicalSignature(chunks[0]) &&
+ bscript.isCanonicalPubKey(chunks[1])
}
+check.toJSON = function () { return 'pubKeyHash input' }
-inherits(Hmac, Transform)
+function encodeStack (signature, pubKey) {
+ typeforce({
+ signature: types.Buffer, pubKey: types.Buffer
+ }, {
+ signature: signature, pubKey: pubKey
+ })
-Hmac.prototype.update = function (data, enc) {
- this._hash.update(data, enc)
+ return [signature, pubKey]
+}
- return this
+function encode (signature, pubKey) {
+ return bscript.compile(encodeStack(signature, pubKey))
}
-Hmac.prototype._transform = function (data, _, next) {
- this._hash.update(data)
+function decodeStack (stack) {
+ typeforce(check, stack)
- next()
+ return {
+ signature: stack[0],
+ pubKey: stack[1]
+ }
}
-Hmac.prototype._flush = function (next) {
- this.push(this.digest())
+function decode (buffer) {
+ var stack = bscript.decompile(buffer)
+ return decodeStack(stack)
+}
- next()
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
}
-Hmac.prototype.digest = function (enc) {
- var h = this._hash.digest()
+},{"../../script":52,"../../types":78,"typeforce":109}],64:[function(require,module,exports){
+// OP_DUP OP_HASH160 {pubKeyHash} OP_EQUALVERIFY OP_CHECKSIG
- return createHash(this._alg).update(this._opad).update(h).digest(enc)
-}
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
-module.exports = function createHmac(alg, key) {
- return new Hmac(alg, key)
+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' }
-}).call(this,require("buffer").Buffer)
-},{"buffer":7,"create-hash/browser":32,"inherits":46,"stream":26}],46:[function(require,module,exports){
-arguments[4][12][0].apply(exports,arguments)
-},{"dup":12}],47:[function(require,module,exports){
-var assert = require('assert')
-var BigInteger = require('bigi')
+function encode (pubKeyHash) {
+ typeforce(types.Hash160bit, pubKeyHash)
-var Point = require('./point')
+ return bscript.compile([
+ OPS.OP_DUP,
+ OPS.OP_HASH160,
+ pubKeyHash,
+ OPS.OP_EQUALVERIFY,
+ OPS.OP_CHECKSIG
+ ])
+}
-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
+function decode (buffer) {
+ typeforce(check, buffer)
- this.infinity = new Point(this, null, null, BigInteger.ZERO)
+ return buffer.slice(3, 23)
+}
- // result caching
- this.pOverFour = p.add(BigInteger.ONE).shiftRight(2)
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
}
-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
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],65:[function(require,module,exports){
+arguments[4][55][0].apply(exports,arguments)
+},{"./input":66,"./output":67,"dup":55}],66:[function(require,module,exports){
+// <scriptSig> {serialized scriptPubKey script}
- var y = beta
- if (beta.isEven() ^ !isOdd) {
- y = this.p.subtract(y) // -y % p
+var Buffer = require('safe-buffer').Buffer
+var bscript = require('../../script')
+var typeforce = require('typeforce')
+
+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
+
+ var inputType = bscript.classifyInput(scriptSigChunks, allowIncomplete)
+ var outputType = bscript.classifyOutput(redeemScriptChunks)
+ if (chunks.length === 1) {
+ return outputType === bscript.types.P2WSH || outputType === bscript.types.P2WPKH
}
+ return inputType === outputType
+}
+check.toJSON = function () { return 'scriptHash input' }
- return Point.fromAffine(this, x, y)
+function encodeStack (redeemScriptStack, redeemScript) {
+ var serializedScriptPubKey = bscript.compile(redeemScript)
+
+ return [].concat(redeemScriptStack, serializedScriptPubKey)
}
-Curve.prototype.isInfinity = function(Q) {
- if (Q === this.infinity) return true
+function encode (redeemScriptSig, redeemScript) {
+ var redeemScriptStack = bscript.decompile(redeemScriptSig)
- return Q.z.signum() === 0 && Q.y.signum() !== 0
+ return bscript.compile(encodeStack(redeemScriptStack, redeemScript))
}
-Curve.prototype.isOnCurve = function(Q) {
- if (this.isInfinity(Q)) return true
+function decodeStack (stack) {
+ typeforce(check, stack)
- var x = Q.affineX
- var y = Q.affineY
- var a = this.a
- var b = this.b
- var p = this.p
+ return {
+ redeemScriptStack: stack.slice(0, -1),
+ redeemScript: stack[stack.length - 1]
+ }
+}
- // 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
+function decode (buffer) {
+ var stack = bscript.decompile(buffer)
+ var result = decodeStack(stack)
+ result.redeemScriptSig = bscript.compile(result.redeemScriptStack)
+ delete result.redeemScriptStack
+ return result
+}
- // 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)
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
}
-/**
- * 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')
+},{"../../script":52,"safe-buffer":98,"typeforce":109}],67:[function(require,module,exports){
+// OP_HASH160 {scriptHash} OP_EQUAL
- // 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')
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
- return true
+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' }
-module.exports = Curve
+function encode (scriptHash) {
+ typeforce(types.Hash160bit, scriptHash)
-},{"./point":51,"assert":5,"bigi":3}],48:[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"
- }
+ 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
}
-},{}],49:[function(require,module,exports){
-var Point = require('./point')
-var Curve = require('./curve')
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],68:[function(require,module,exports){
+module.exports = {
+ output: require('./output')
+}
-var getCurveByName = require('./names')
+},{"./output":69}],69:[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 = {
- Curve: Curve,
- Point: Point,
- getCurveByName: getCurveByName
+ check: check,
+ decode: decode,
+ encode: encode
}
-},{"./curve":47,"./names":50,"./point":51}],50:[function(require,module,exports){
-var BigInteger = require('bigi')
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"safe-buffer":98,"typeforce":109}],70:[function(require,module,exports){
+arguments[4][55][0].apply(exports,arguments)
+},{"./input":71,"./output":72,"dup":55}],71:[function(require,module,exports){
+// {signature} {pubKey}
-var curves = require('./curves')
-var Curve = require('./curve')
+var pkh = require('../pubkeyhash/input')
-function getCurveByName(name) {
- var curve = curves[name]
- if (!curve) return null
+module.exports = {
+ check: pkh.check,
+ decodeStack: pkh.decodeStack,
+ encodeStack: pkh.encodeStack
+}
- 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)
+},{"../pubkeyhash/input":63}],72:[function(require,module,exports){
+// OP_0 {pubKeyHash}
- return new Curve(p, a, b, Gx, Gy, n, h)
+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' }
-module.exports = getCurveByName
+function encode (pubKeyHash) {
+ typeforce(types.Hash160bit, pubKeyHash)
-},{"./curve":47,"./curves":48,"bigi":3}],51:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var BigInteger = require('bigi')
+ return bscript.compile([OPS.OP_0, pubKeyHash])
+}
-var THREE = BigInteger.valueOf(3)
+function decode (buffer) {
+ typeforce(check, buffer)
-function Point(curve, x, y, z) {
- assert.notStrictEqual(z, undefined, 'Missing Z coordinate')
+ return buffer.slice(2)
+}
- this.curve = curve
- this.x = x
- this.y = y
- this.z = z
- this._zInv = null
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
- this.compressed = true
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],73:[function(require,module,exports){
+arguments[4][55][0].apply(exports,arguments)
+},{"./input":74,"./output":75,"dup":55}],74:[function(require,module,exports){
+// {signature} {pubKey}
+
+var p2sh = require('../scripthash/input')
+
+module.exports = {
+ check: p2sh.check,
+ decodeStack: p2sh.decodeStack,
+ encodeStack: p2sh.encodeStack
}
-Object.defineProperty(Point.prototype, 'zInv', {
- get: function() {
- if (this._zInv === null) {
- this._zInv = this.z.modInverse(this.curve.p)
- }
+},{"../scripthash/input":66}],75:[function(require,module,exports){
+// OP_0 {scriptHash}
- return this._zInv
- }
-})
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
-Object.defineProperty(Point.prototype, 'affineX', {
- get: function() {
- return this.x.multiply(this.zInv).mod(this.curve.p)
- }
-})
+function check (script) {
+ var buffer = bscript.compile(script)
-Object.defineProperty(Point.prototype, 'affineY', {
- get: function() {
- return this.y.multiply(this.zInv).mod(this.curve.p)
- }
-})
+ return buffer.length === 34 &&
+ buffer[0] === OPS.OP_0 &&
+ buffer[1] === 0x20
+}
+check.toJSON = function () { return 'Witness scriptHash output' }
-Point.fromAffine = function(curve, x, y) {
- return new Point(curve, x, y, BigInteger.ONE)
+function encode (scriptHash) {
+ typeforce(types.Hash256bit, scriptHash)
+
+ return bscript.compile([OPS.OP_0, scriptHash])
}
-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)
+function decode (buffer) {
+ typeforce(check, buffer)
- // u = Y2 * Z1 - Y1 * Z2
- var u = other.y.multiply(this.z).subtract(this.y.multiply(other.z)).mod(this.curve.p)
+ return buffer.slice(2)
+}
- if (u.signum() !== 0) return false
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
- // v = X2 * Z1 - X1 * Z2
- var v = other.x.multiply(this.z).subtract(this.x.multiply(other.z)).mod(this.curve.p)
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],76:[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')
- return v.signum() === 0
+function varSliceSize (someScript) {
+ var length = someScript.length
+
+ return varuint.encodingLength(length) + length
}
-Point.prototype.negate = function() {
- var y = this.curve.p.subtract(this.y)
+function vectorSize (someVector) {
+ var length = someVector.length
- return new Point(this.curve, this.x, y, this.z)
+ return varuint.encodingLength(length) + someVector.reduce(function (sum, witness) {
+ return sum + varSliceSize(witness)
+ }, 0)
}
-Point.prototype.add = function(b) {
- if (this.curve.isInfinity(this)) return b
- if (this.curve.isInfinity(b)) return this
+function Transaction () {
+ this.version = 1
+ this.locktime = 0
+ this.ins = []
+ this.outs = []
+}
- var x1 = this.x
- var y1 = this.y
- var x2 = b.x
- var y2 = b.y
+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
- // 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)
+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
+}
- if (v.signum() === 0) {
- if (u.signum() === 0) {
- return this.twice() // this == b, so double
+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()
}
- return this.curve.infinity // this = -b, so infinity
+ // was this pointless?
+ if (!tx.hasWitnesses()) throw new Error('Transaction has superfluous witness data')
}
- var v2 = v.square()
- var v3 = v2.multiply(v)
- var x1v2 = x1.multiply(v2)
- var zu2 = u.square().multiply(this.z)
+ tx.locktime = readUInt32()
- // 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)
+ if (__noStrict) return tx
+ if (offset !== buffer.length) throw new Error('Transaction has unexpected data')
- return new Point(this.curve, x3, y3, z3)
+ return tx
}
-Point.prototype.twice = function() {
- if (this.curve.isInfinity(this)) return this
- if (this.y.signum() === 0) return this.curve.infinity
+Transaction.fromHex = function (hex) {
+ return Transaction.fromBuffer(Buffer.from(hex, 'hex'))
+}
- var x1 = this.x
- var y1 = this.y
+Transaction.isCoinbaseHash = function (buffer) {
+ typeforce(types.Hash256bit, buffer)
+ for (var i = 0; i < 32; ++i) {
+ if (buffer[i] !== 0) return false
+ }
+ return true
+}
- var y1z1 = y1.multiply(this.z)
- var y1sqz1 = y1z1.multiply(y1).mod(this.curve.p)
- var a = this.curve.a
+Transaction.prototype.isCoinbase = function () {
+ return this.ins.length === 1 && Transaction.isCoinbaseHash(this.ins[0].hash)
+}
- // w = 3 * x1^2 + a * z1^2
- var w = x1.square().multiply(THREE)
+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 (a.signum() !== 0) {
- w = w.add(this.z.square().multiply(a))
+ if (types.Null(sequence)) {
+ sequence = Transaction.DEFAULT_SEQUENCE
}
- 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)
+ // 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)
+}
- return new Point(this.curve, x3, y3, z3)
+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)
}
-// 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
+Transaction.prototype.hasWitnesses = function () {
+ return this.ins.some(function (x) {
+ return x.witness.length !== 0
+ })
+}
- var e = k
- var h = e.multiply(THREE)
+Transaction.prototype.weight = function () {
+ var base = this.__byteLength(false)
+ var total = this.__byteLength(true)
+ return base * 3 + total
+}
- var neg = this.negate()
- var R = this
+Transaction.prototype.virtualSize = function () {
+ return Math.ceil(this.weight() / 4)
+}
- for (var i = h.bitLength() - 2; i > 0; --i) {
- R = R.twice()
+Transaction.prototype.byteLength = function () {
+ return this.__byteLength(true)
+}
- var hBit = h.testBit(i)
- var eBit = e.testBit(i)
+Transaction.prototype.__byteLength = function (__allowWitness) {
+ var hasWitnesses = __allowWitness && this.hasWitnesses()
- if (hBit != eBit) {
- R = R.add(hBit ? this : neg)
+ 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
}
- }
+ })
- return R
+ newTx.outs = this.outs.map(function (txOut) {
+ return {
+ script: txOut.script,
+ value: txOut.value
+ }
+ })
+
+ return newTx
}
-// Compute this*j + x*k (simultaneous multiplication)
-Point.prototype.multiplyTwo = function(j, x, k) {
- var i
+/**
+ * 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)
- if (j.bitLength() > k.bitLength())
- i = j.bitLength() - 1
- else
- i = k.bitLength() - 1
+ // https://github.com/bitcoin/bitcoin/blob/master/src/test/sighash_tests.cpp#L29
+ if (inIndex >= this.ins.length) return ONE
- var R = this.curve.infinity
- var both = this.add(x)
+ // ignore OP_CODESEPARATOR
+ var ourScript = bscript.compile(bscript.decompile(prevOutScript).filter(function (x) {
+ return x !== opcodes.OP_CODESEPARATOR
+ }))
- while (i >= 0) {
- R = R.twice()
+ var txTmp = this.clone()
- var jBit = j.testBit(i)
- var kBit = k.testBit(i)
+ // SIGHASH_NONE: ignore all outputs? (wildcard payee)
+ if ((hashType & 0x1f) === Transaction.SIGHASH_NONE) {
+ txTmp.outs = []
- if (jBit) {
- if (kBit) {
- R = R.add(both)
+ // ignore sequence numbers (except at inIndex)
+ txTmp.ins.forEach(function (input, i) {
+ if (i === inIndex) return
- } else {
- R = R.add(this)
- }
+ input.sequence = 0
+ })
- } else {
- if (kBit) {
- R = R.add(x)
- }
+ // 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
}
- --i
+
+ // ignore sequence numbers (except at inIndex)
+ txTmp.ins.forEach(function (input, y) {
+ if (y === inIndex) return
+
+ input.sequence = 0
+ })
}
- return R
-}
+ // SIGHASH_ANYONECANPAY: ignore inputs entirely?
+ if (hashType & Transaction.SIGHASH_ANYONECANPAY) {
+ txTmp.ins = [txTmp.ins[inIndex]]
+ txTmp.ins[0].script = ourScript
-Point.prototype.getEncoded = function(compressed) {
- if (compressed == undefined) compressed = this.compressed
- if (this.curve.isInfinity(this)) return new Buffer('00', 'hex') // Infinity point encoded is simply '00'
+ // 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
+ }
- var x = this.affineX
- var y = this.affineY
+ // serialize and hash
+ var buffer = Buffer.allocUnsafe(txTmp.__byteLength(false) + 4)
+ buffer.writeInt32LE(hashType, buffer.length - 4)
+ txTmp.__toBuffer(buffer, 0, false)
- var buffer
+ return bcrypto.hash256(buffer)
+}
- // Determine size of q in bytes
- var byteLength = Math.floor((this.curve.p.bitLength() + 7) / 8)
+Transaction.prototype.hashForWitnessV0 = function (inIndex, prevOutScript, value, hashType) {
+ typeforce(types.tuple(types.UInt32, types.Buffer, types.Satoshi, types.UInt32), arguments)
- // 0x02/0x03 | X
- if (compressed) {
- buffer = new Buffer(1 + byteLength)
- buffer.writeUInt8(y.isEven() ? 0x02 : 0x03, 0)
+ 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) }
- // 0x04 | X | Y
- } else {
- buffer = new Buffer(1 + byteLength + byteLength)
- buffer.writeUInt8(0x04, 0)
+ var hashOutputs = ZERO
+ var hashPrevouts = ZERO
+ var hashSequence = ZERO
- y.toBuffer(byteLength).copy(buffer, 1 + byteLength)
+ 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)
}
- x.toBuffer(byteLength).copy(buffer, 1)
+ if (!(hashType & Transaction.SIGHASH_ANYONECANPAY) &&
+ (hashType & 0x1f) !== Transaction.SIGHASH_SINGLE &&
+ (hashType & 0x1f) !== Transaction.SIGHASH_NONE) {
+ tbuffer = Buffer.allocUnsafe(4 * this.ins.length)
+ toffset = 0
- return buffer
-}
+ this.ins.forEach(function (txIn) {
+ writeUInt32(txIn.sequence)
+ })
-Point.decodeFrom = function(curve, buffer) {
- var type = buffer.readUInt8(0)
- var compressed = (type !== 4)
+ hashSequence = bcrypto.hash256(tbuffer)
+ }
- var byteLength = Math.floor((curve.p.bitLength() + 7) / 8)
- var x = BigInteger.fromBuffer(buffer.slice(1, 1 + byteLength))
+ 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)
- var Q
- if (compressed) {
- assert.equal(buffer.length, byteLength + 1, 'Invalid sequence length')
- assert(type === 0x02 || type === 0x03, 'Invalid sequence tag')
+ tbuffer = Buffer.allocUnsafe(txOutsSize)
+ toffset = 0
- var isOdd = (type === 0x03)
- Q = curve.pointFromX(isOdd, x)
+ this.outs.forEach(function (out) {
+ writeUInt64(out.value)
+ writeVarSlice(out.script)
+ })
- } else {
- assert.equal(buffer.length, 1 + byteLength + byteLength, 'Invalid sequence length')
+ hashOutputs = bcrypto.hash256(tbuffer)
+ } else if ((hashType & 0x1f) === Transaction.SIGHASH_SINGLE && inIndex < this.outs.length) {
+ var output = this.outs[inIndex]
- var y = BigInteger.fromBuffer(buffer.slice(1 + byteLength))
- Q = Point.fromAffine(curve, x, y)
+ tbuffer = Buffer.allocUnsafe(8 + varSliceSize(output.script))
+ toffset = 0
+ writeUInt64(output.value)
+ writeVarSlice(output.script)
+
+ hashOutputs = bcrypto.hash256(tbuffer)
}
- Q.compressed = compressed
- return Q
+ 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)
}
-Point.prototype.toString = function () {
- if (this.curve.isInfinity(this)) return '(INFINITY)'
+Transaction.prototype.getHash = function () {
+ return bcrypto.hash256(this.__toBuffer(undefined, undefined, false))
+}
- return '(' + this.affineX.toString() + ',' + this.affineY.toString() + ')'
+Transaction.prototype.getId = function () {
+ // transaction hash's are displayed in reverse order
+ return this.getHash().reverse().toString('hex')
}
-module.exports = Point
+Transaction.prototype.toBuffer = function (buffer, initialOffset) {
+ return this.__toBuffer(buffer, initialOffset, true)
+}
-}).call(this,require("buffer").Buffer)
-},{"assert":5,"bigi":3,"buffer":7}],52:[function(require,module,exports){
-(function (process,global,Buffer){
-'use strict';
+Transaction.prototype.__toBuffer = function (buffer, initialOffset, __allowWitness) {
+ if (!buffer) buffer = Buffer.allocUnsafe(this.__byteLength(__allowWitness))
-var crypto = global.crypto || global.msCrypto
-if(crypto && crypto.getRandomValues) {
- module.exports = randomBytes;
-} else {
- module.exports = oldBrowser;
-}
-function randomBytes(size, cb) {
- var bytes = new Buffer(size); //in browserify, this is an extended Uint8Array
- /* This will not work in older browsers.
- * See https://developer.mozilla.org/en-US/docs/Web/API/window.crypto.getRandomValues
- */
+ 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) }
- crypto.getRandomValues(bytes);
- if (typeof cb === 'function') {
- return process.nextTick(function () {
- cb(null, bytes);
- });
+ writeInt32(this.version)
+
+ var hasWitnesses = __allowWitness && this.hasWitnesses()
+
+ if (hasWitnesses) {
+ writeUInt8(Transaction.ADVANCED_TRANSACTION_MARKER)
+ writeUInt8(Transaction.ADVANCED_TRANSACTION_FLAG)
}
- return bytes;
-}
-function oldBrowser() {
- throw new Error(
- 'secure random number generation not supported by this browser\n'+
- 'use chrome, FireFox or Internet Explorer 11'
- )
-}
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
-},{"_process":14,"buffer":7}],53:[function(require,module,exports){
-(function (Buffer){
-'use strict';
+ writeVarInt(this.ins.length)
-function getFunctionName(fn) {
- return fn.name || fn.toString().match(/function (.*?)\s*\(/)[1];
-}
+ 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)
+ })
-function getTypeTypeName(type) {
- if (nativeTypes.Function(type)) {
- type = type.toJSON ? type.toJSON() : getFunctionName(type);
+ if (hasWitnesses) {
+ this.ins.forEach(function (input) {
+ writeVector(input.witness)
+ })
}
- if (nativeTypes.Object(type)) return JSON.stringify(type);
- return type;
+ 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')
}
-function getValueTypeName(value) {
- if (nativeTypes.Null(value)) return '';
+Transaction.prototype.setInputScript = function (index, scriptSig) {
+ typeforce(types.tuple(types.Number, types.Buffer), arguments)
- return getFunctionName(value.constructor);
+ this.ins[index].script = scriptSig
}
-function tfErrorString(type, value) {
- var typeTypeName = getTypeTypeName(type);
- var valueTypeName = getValueTypeName(value);
+Transaction.prototype.setWitness = function (index, witness) {
+ typeforce(types.tuple(types.Number, [types.Buffer]), arguments)
- return 'Expected ' + typeTypeName + ', got ' + (valueTypeName && valueTypeName + ' ') + JSON.stringify(value);
+ this.ins[index].witness = witness
}
-function tfPropertyErrorString(type, name, value) {
- return tfErrorString('property \"' + name + '\" of type ' + getTypeTypeName(type), value);
+module.exports = Transaction
+
+},{"./bufferutils":44,"./crypto":45,"./script":52,"./types":78,"bitcoin-ops":40,"safe-buffer":98,"typeforce":109,"varuint-bitcoin":111}],77:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var baddress = require('./address')
+var bcrypto = require('./crypto')
+var bscript = require('./script')
+var networks = require('./networks')
+var ops = require('bitcoin-ops')
+var typeforce = require('typeforce')
+var types = require('./types')
+var scriptTypes = bscript.types
+var SIGNABLE = [bscript.types.P2PKH, bscript.types.P2PK, bscript.types.MULTISIG]
+var P2SH = SIGNABLE.concat([bscript.types.P2WPKH, bscript.types.P2WSH])
+
+var ECPair = require('./ecpair')
+var ECSignature = require('./ecsignature')
+var Transaction = require('./transaction')
+
+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 ? bscript.pubKey.output.decode(script) : undefined
+ signatures = chunks.slice(0, 1)
+ break
+
+ case scriptTypes.MULTISIG:
+ if (script) {
+ var multisig = bscript.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 nativeTypes = {
- Array: (function (_Array) {
- function Array(_x) {
- return _Array.apply(this, arguments);
+ 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 = bscript.classifyInput(scriptSigChunks, true)
+ if (sigType === scriptTypes.P2SH) {
+ p2sh = true
+ redeemScript = scriptSigChunks[scriptSigChunks.length - 1]
+ redeemScriptType = bscript.classifyOutput(redeemScript)
+ prevOutScript = bscript.scriptHash.output.encode(bcrypto.hash160(redeemScript))
+ prevOutType = scriptTypes.P2SH
+ script = redeemScript
+ }
+
+ var classifyWitness = bscript.classifyWitness(witnessStack)
+ if (classifyWitness === scriptTypes.P2WSH) {
+ witnessScript = witnessStack[witnessStack.length - 1]
+ witnessScriptType = bscript.classifyOutput(witnessScript)
+ p2wsh = true
+ if (scriptSig.length === 0) {
+ prevOutScript = bscript.witnessScriptHash.output.encode(bcrypto.sha256(witnessScript))
+ prevOutType = scriptTypes.P2WSH
+ if (typeof 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 = bscript.witnessScriptHash.output.encode(bcrypto.sha256(witnessScript))
+ if (!redeemScript.equals(witnessProgram)) {
+ throw new Error('Redeem script didn\'t match witnessScript')
+ }
}
- Array.toString = function () {
- return _Array.toString();
- };
+ if (SIGNABLE.indexOf(bscript.classifyOutput(witnessScript)) === -1) {
+ throw new Error('unsupported witness script')
+ }
+ script = witnessScript
+ scriptType = witnessScriptType
+ chunks = witnessStack.slice(0, -1)
+ } else if (classifyWitness === scriptTypes.P2WPKH) {
+ var key = witnessStack[witnessStack.length - 1]
+ var keyHash = bcrypto.hash160(key)
+ if (scriptSig.length === 0) {
+ prevOutScript = bscript.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 = bscript.witnessPubKeyHash.output.encode(keyHash)
+ if (!redeemScript.equals(witnessProgram)) {
+ throw new Error('Redeem script did not have the right witness program')
+ }
+ }
- return Array;
- })(function (value) {
- return value !== null && value !== undefined && value.constructor === Array;
- }),
- Boolean: function Boolean(value) {
- return typeof value === 'boolean';
- },
- Buffer: (function (_Buffer) {
- function Buffer(_x2) {
- return _Buffer.apply(this, arguments);
+ scriptType = scriptTypes.P2PKH
+ chunks = witnessStack
+ } else if (redeemScript) {
+ if (P2SH.indexOf(redeemScriptType) === -1) {
+ throw new Error('Bad redeemscript!')
}
- Buffer.toString = function () {
- return _Buffer.toString();
- };
+ script = redeemScript
+ scriptType = redeemScriptType
+ chunks = scriptSigChunks.slice(0, -1)
+ } else {
+ prevOutType = scriptType = bscript.classifyInput(scriptSig)
+ chunks = scriptSigChunks
+ }
- return Buffer;
- })(function (value) {
- return Buffer.isBuffer(value);
- }),
- Function: function Function(value) {
- return typeof value === 'function';
- },
- Null: function Null(value) {
- return value === undefined || value === null;
- },
- Number: function Number(value) {
- return typeof value === 'number';
- },
- Object: function Object(value) {
- return typeof value === 'object';
- },
- String: function String(value) {
- return typeof value === 'string';
- },
- '': function _() {
- return true;
+ 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)
}
-};
-function tJSON(type) {
- return type && type.toJSON ? type.toJSON() : type;
-}
+ if (p2sh) {
+ result.redeemScript = redeemScript
+ result.redeemScriptType = redeemScriptType
+ }
+
+ if (p2wsh) {
+ result.witnessScript = witnessScript
+ result.witnessScriptType = witnessScriptType
+ }
-function sJSON(type) {
- var json = tJSON(type);
- return nativeTypes.Object(json) ? JSON.stringify(json) : json;
+ return result
}
-var otherTypes = {
- arrayOf: function arrayOf(type) {
- function arrayOf(value, strict) {
- try {
- return nativeTypes.Array(value) && value.every(function (x) {
- return typeforce(type, x, strict);
- });
- } catch (e) {
- return false;
- }
- }
- arrayOf.toJSON = function () {
- return [tJSON(type)];
- };
+// 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
- return arrayOf;
- },
+ var unmatched = input.signatures.concat()
- maybe: function maybe(type) {
- function maybe(value, strict) {
- return nativeTypes.Null(value) || typeforce(type, value, strict);
- }
- maybe.toJSON = function () {
- return '?' + sJSON(type);
- };
+ input.signatures = input.pubKeys.map(function (pubKey) {
+ var keyPair = ECPair.fromPublicKeyBuffer(pubKey)
+ var match
- return maybe;
- },
+ // check for a signature
+ unmatched.some(function (signature, i) {
+ // skip if undefined || OP_0
+ if (!signature) return false
- object: function object(type) {
- function object(value, strict) {
- typeforce(nativeTypes.Object, value, strict);
+ // TODO: avoid O(n) hashForSignature
+ var parsed = ECSignature.parseScriptSignature(signature)
+ var hash = transaction.hashForSignature(vin, input.redeemScript, parsed.hashType)
- var propertyName, propertyType, propertyValue;
+ // skip if signature does not match pubKey
+ if (!keyPair.verify(hash, parsed.signature)) return false
- try {
- for (propertyName in type) {
- propertyType = type[propertyName];
- propertyValue = value[propertyName];
+ // remove matched signature from unmatched
+ unmatched[i] = undefined
+ match = signature
- typeforce(propertyType, propertyValue, strict);
- }
- } catch (e) {
- throw new TypeError(tfPropertyErrorString(propertyType, propertyName, propertyValue));
- }
+ return true
+ })
- if (strict) {
- for (propertyName in value) {
- if (type[propertyName]) continue;
+ return match
+ })
+}
- throw new TypeError('Unexpected property "' + propertyName + '"');
- }
- }
+function expandOutput (script, scriptType, ourPubKey) {
+ typeforce(types.Buffer, script)
- return true;
- }
- object.toJSON = function () {
- return type;
- };
+ var scriptChunks = bscript.decompile(script)
+ if (!scriptType) {
+ scriptType = bscript.classifyOutput(script)
+ }
- return object;
- },
+ var pubKeys = []
- oneOf: function oneOf() {
- for (var _len = arguments.length, types = Array(_len), _key = 0; _key < _len; _key++) {
- types[_key] = arguments[_key];
- }
+ switch (scriptType) {
+ // does our hash160(pubKey) match the output scripts?
+ case scriptTypes.P2PKH:
+ if (!ourPubKey) break
- function oneOf(value, strict) {
- return types.some(function (type) {
- try {
- return typeforce(type, value, strict);
- } catch (e) {
- return false;
- }
- });
- }
- oneOf.toJSON = function () {
- return types.map(sJSON).join('|');
- };
+ 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 })
+ }
+}
- return oneOf;
- },
+function checkP2shInput (input, redeemScriptHash) {
+ if (input.prevOutType) {
+ if (input.prevOutType !== scriptTypes.P2SH) throw new Error('PrevOutScript must be P2SH')
- quacksLike: function quacksLike(type) {
- function quacksLike(value, strict) {
- return type === getValueTypeName(value);
- }
- quacksLike.toJSON = function () {
- return type;
- };
+ var prevOutScriptScriptHash = bscript.decompile(input.prevOutScript)[1]
+ if (!prevOutScriptScriptHash.equals(redeemScriptHash)) throw new Error('Inconsistent hash160(RedeemScript)')
+ }
+}
- return quacksLike;
- },
+function checkP2WSHInput (input, witnessScriptHash) {
+ if (input.prevOutType) {
+ if (input.prevOutType !== scriptTypes.P2WSH) throw new Error('PrevOutScript must be P2WSH')
- tuple: function tuple() {
- for (var _len2 = arguments.length, types = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
- types[_key2] = arguments[_key2];
- }
+ var scriptHash = bscript.decompile(input.prevOutScript)[1]
+ if (!scriptHash.equals(witnessScriptHash)) throw new Error('Inconsistent sha25(WitnessScript)')
+ }
+}
- function tuple(value, strict) {
- return types.every(function (type, i) {
- return typeforce(type, value[i], strict);
- });
- }
- tuple.toJSON = function () {
- return '(' + types.map(sJSON).join(', ') + ')';
- };
+function prepareInput (input, kpPubKey, redeemScript, witnessValue, witnessScript) {
+ var expanded
+ var prevOutType
+ var prevOutScript
- return tuple;
- },
+ 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(bscript.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 = bscript.types.P2SH
+ prevOutScript = bscript.scriptHash.output.encode(redeemScriptHash)
+ p2sh = witness = p2wsh = true
+ p2shType = bscript.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 = bscript.types.P2SH
+ prevOutScript = bscript.scriptHash.output.encode(redeemScriptHash)
+ p2sh = true
+ signType = p2shType = expanded.scriptType
+ signScript = redeemScript
+ witness = signType === bscript.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 = bscript.types.P2WSH
+ prevOutScript = bscript.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 = bscript.pubKeyHash.output.encode(bcrypto.hash160(kpPubKey))
+ expanded = expandOutput(prevOutScript, scriptTypes.P2PKH, kpPubKey)
+ prevOutType = scriptTypes.P2PKH
+ witness = false
+ signType = prevOutType
+ signScript = prevOutScript
+ }
- value: function value(expected) {
- function value(actual) {
- return actual === expected;
- }
- value.toJSON = function () {
- return expected;
- };
+ if (witness && !types.Satoshi(witnessValue)) {
+ throw new Error('Input was witness but not given witness value')
+ }
- return value;
+ if (signType === scriptTypes.P2WPKH) {
+ signScript = bscript.pubKeyHash.output.encode(bscript.witnessPubKeyHash.output.decode(signScript))
+ }
+
+ if (p2sh) {
+ input.redeemScript = redeemScript
+ input.redeemScriptType = p2shType
}
-};
-function compile(type) {
- if (nativeTypes.String(type)) {
- if (type[0] === '?') return otherTypes.maybe(compile(type.slice(1)));
+ if (p2wsh) {
+ input.witnessScript = witnessScript
+ input.witnessScriptType = witnessType
+ }
- return nativeTypes[type] || otherTypes.quacksLike(type);
- } else if (type && nativeTypes.Object(type)) {
- if (nativeTypes.Array(type)) return otherTypes.arrayOf(compile(type[0]));
+ input.pubKeys = expanded.pubKeys
+ input.signatures = expanded.signatures
+ input.signScript = signScript
+ input.signType = signType
+ input.prevOutScript = prevOutScript
+ input.prevOutType = prevOutType
+ input.witness = witness
+}
- var compiled = {};
+function buildStack (type, signatures, pubKeys, allowIncomplete) {
+ if (type === scriptTypes.P2PKH) {
+ if (signatures.length === 1 && Buffer.isBuffer(signatures[0]) && pubKeys.length === 1) return bscript.pubKeyHash.input.encodeStack(signatures[0], pubKeys[0])
+ } else if (type === scriptTypes.P2PK) {
+ if (signatures.length === 1 && Buffer.isBuffer(signatures[0])) return bscript.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 })
+ }
- for (var propertyName in type) {
- compiled[propertyName] = compile(type[propertyName]);
+ return bscript.multisig.input.encodeStack(signatures /* see if it's necessary first */)
}
-
- return otherTypes.object(compiled);
- } else if (nativeTypes.Function(type)) {
- return type;
+ } else {
+ throw new Error('Not yet supported')
}
- return otherTypes.value(type);
-}
+ if (!allowIncomplete) throw new Error('Not enough signatures provided')
-function typeforce(_x3, _x4, _x5) {
- var _again = true;
+ return []
+}
- _function: while (_again) {
- var type = _x3,
- value = _x4,
- strict = _x5;
- _again = false;
+function buildInput (input, allowIncomplete) {
+ var scriptType = input.prevOutType
+ var sig = []
+ var witness = []
+ if (SIGNABLE.indexOf(scriptType) !== -1) {
+ sig = buildStack(scriptType, input.signatures, input.pubKeys, allowIncomplete)
+ }
- if (nativeTypes.Function(type)) {
- if (type(value, strict)) return true;
+ var p2sh = false
+ if (scriptType === bscript.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 (P2SH.indexOf(input.redeemScriptType) === -1) {
+ throw new Error('Impossible to sign this type')
+ }
+ p2sh = true
+ if (SIGNABLE.indexOf(input.redeemScriptType) !== -1) {
+ sig = buildStack(input.redeemScriptType, input.signatures, input.pubKeys, allowIncomplete)
+ }
+ // If it wasn't SIGNABLE, it's witness, defer to that
+ scriptType = input.redeemScriptType
+ }
- throw new TypeError(tfErrorString(type, value));
+ if (scriptType === bscript.types.P2WPKH) {
+ // P2WPKH is a special case of P2PKH
+ witness = buildStack(bscript.types.P2PKH, input.signatures, input.pubKeys, allowIncomplete)
+ } else if (scriptType === bscript.types.P2WSH) {
+ // We can remove this check later
+ if (SIGNABLE.indexOf(input.witnessScriptType) !== -1) {
+ witness = buildStack(input.witnessScriptType, input.signatures, input.pubKeys, allowIncomplete)
+ witness.push(input.witnessScript)
+ } else {
+ // We can remove this error later when we have a guarantee prepareInput
+ // rejects unsignble scripts - it MUST be signable at this point.
+ throw new Error()
}
- // JIT
- _x3 = compile(type);
- _x4 = value;
- _x5 = strict;
- _again = true;
- continue _function;
+ scriptType = input.witnessScriptType
+ }
+
+ // append redeemScript if necessary
+ if (p2sh) {
+ sig.push(input.redeemScript)
+ }
+
+ return {
+ type: scriptType,
+ script: bscript.compile(sig),
+ witness: witness
}
}
-// assign all types to typeforce function
-var typeName;
-Object.keys(nativeTypes).forEach(function (typeName) {
- var nativeType = nativeTypes[typeName];
- nativeType.toJSON = function () {
- return typeName;
- };
+function TransactionBuilder (network, maximumFeeRate) {
+ this.prevTxMap = {}
+ this.network = network || networks.bitcoin
- typeforce[typeName] = nativeType;
-});
+ // WARNING: This is __NOT__ to be relied on, its just another potential safety mechanism (safety in-depth)
+ this.maximumFeeRate = maximumFeeRate || 1000
-for (typeName in otherTypes) {
- typeforce[typeName] = otherTypes[typeName];
+ this.inputs = []
+ this.tx = new Transaction()
}
-module.exports = typeforce;
-module.exports.compile = compile;
-}).call(this,require("buffer").Buffer)
-},{"buffer":7}],54:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var base58check = require('bs58check')
-var typeForce = require('typeforce')
-var networks = require('./networks')
-var scripts = require('./scripts')
+TransactionBuilder.prototype.setLockTime = function (locktime) {
+ typeforce(types.UInt32, locktime)
-function findScriptTypeByVersion (version) {
- for (var networkName in networks) {
- var network = networks[networkName]
+ // if any signatures exist, throw
+ if (this.inputs.some(function (input) {
+ if (!input.signatures) return false
- if (version === network.pubKeyHash) return 'pubkeyhash'
- if (version === network.scriptHash) return 'scripthash'
+ return input.signatures.some(function (s) { return s })
+ })) {
+ throw new Error('No, this would invalidate signatures')
}
-}
-function Address (hash, version) {
- typeForce('Buffer', hash)
+ this.tx.locktime = locktime
+}
- assert.strictEqual(hash.length, 20, 'Invalid hash length')
- assert.strictEqual(version & 0xff, version, 'Invalid version byte')
+TransactionBuilder.prototype.setVersion = function (version) {
+ typeforce(types.UInt32, version)
- this.hash = hash
- this.version = version
+ // XXX: this might eventually become more complex depending on what the versions represent
+ this.tx.version = version
}
-Address.fromBase58Check = function (string) {
- var payload = base58check.decode(string)
- var version = payload.readUInt8(0)
- var hash = payload.slice(1)
+TransactionBuilder.fromTransaction = function (transaction, network) {
+ var txb = new TransactionBuilder(network)
- return new Address(hash, version)
-}
+ // Copy transaction fields
+ txb.setVersion(transaction.version)
+ txb.setLockTime(transaction.locktime)
-Address.fromOutputScript = function (script, network) {
- network = network || networks.bitcoin
+ // 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
+ })
+ })
- if (scripts.isPubKeyHashOutput(script)) return new Address(script.chunks[2], network.pubKeyHash)
- if (scripts.isScriptHashOutput(script)) return new Address(script.chunks[1], network.scriptHash)
+ // fix some things not possible through the public API
+ txb.inputs.forEach(function (input, i) {
+ fixMultisigOrder(input, transaction, i)
+ })
- assert(false, script.toASM() + ' has no matching Address')
+ return txb
}
-Address.prototype.toBase58Check = function () {
- var payload = new Buffer(21)
- payload.writeUInt8(this.version, 0)
- this.hash.copy(payload, 1)
+TransactionBuilder.prototype.addInput = function (txHash, vout, sequence, prevOutScript) {
+ if (!this.__canModifyInputs()) {
+ throw new Error('No, this would invalidate signatures')
+ }
+
+ var value
- return base58check.encode(payload)
-}
+ // 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()
-Address.prototype.toOutputScript = function () {
- var scriptType = findScriptTypeByVersion(this.version)
+ // is it a Transaction object?
+ } else if (txHash instanceof Transaction) {
+ var txOut = txHash.outs[vout]
+ prevOutScript = txOut.script
+ value = txOut.value
- if (scriptType === 'pubkeyhash') return scripts.pubKeyHashOutput(this.hash)
- if (scriptType === 'scripthash') return scripts.scriptHashOutput(this.hash)
+ txHash = txHash.getHash()
+ }
- assert(false, this.toString() + ' has no matching Script')
+ return this.__addInputUnsafe(txHash, vout, {
+ sequence: sequence,
+ prevOutScript: prevOutScript,
+ value: value
+ })
}
-Address.prototype.toString = Address.prototype.toBase58Check
+TransactionBuilder.prototype.__addInputUnsafe = function (txHash, vout, options) {
+ if (Transaction.isCoinbaseHash(txHash)) {
+ throw new Error('coinbase inputs not supported')
+ }
-module.exports = Address
+ var prevTxOut = txHash.toString('hex') + ':' + vout
+ if (this.prevTxMap[prevTxOut] !== undefined) throw new Error('Duplicate TxOut: ' + prevTxOut)
-}).call(this,require("buffer").Buffer)
-},{"./networks":66,"./scripts":69,"assert":5,"bs58check":31,"buffer":7,"typeforce":53}],55:[function(require,module,exports){
-var bs58check = require('bs58check')
+ var input = {}
-function decode () {
- console.warn('bs58check will be removed in 2.0.0. require("bs58check") instead.')
+ // derive what we can from the scriptSig
+ if (options.script !== undefined) {
+ input = expandInput(options.script, options.witness || [])
+ }
- return bs58check.decode.apply(undefined, arguments)
-}
+ // if an input value was given, retain it
+ if (options.value !== undefined) {
+ input.value = options.value
+ }
-function encode () {
- console.warn('bs58check will be removed in 2.0.0. require("bs58check") instead.')
+ // derive what we can from the previous transactions output script
+ if (!input.prevOutScript && options.prevOutScript) {
+ var prevOutType
- return bs58check.encode.apply(undefined, arguments)
-}
+ if (!input.pubKeys && !input.signatures) {
+ var expanded = expandOutput(options.prevOutScript)
-module.exports = {
- decode: decode,
- encode: encode
-}
+ if (expanded.pubKeys) {
+ input.pubKeys = expanded.pubKeys
+ input.signatures = expanded.signatures
+ }
-},{"bs58check":31}],56:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var bufferutils = require('./bufferutils')
-var crypto = require('./crypto')
+ prevOutType = expanded.scriptType
+ }
-var Transaction = require('./transaction')
+ input.prevOutScript = options.prevOutScript
+ input.prevOutType = prevOutType || bscript.classifyOutput(options.prevOutScript)
+ }
-function Block () {
- this.version = 1
- this.prevHash = null
- this.merkleRoot = null
- this.timestamp = 0
- this.bits = 0
- this.nonce = 0
-}
+ var vin = this.tx.addInput(txHash, vout, options.sequence, options.scriptSig)
+ this.inputs[vin] = input
+ this.prevTxMap[prevTxOut] = vin
-Block.fromBuffer = function (buffer) {
- assert(buffer.length >= 80, 'Buffer too small (< 80 bytes)')
+ return vin
+}
- var offset = 0
- function readSlice (n) {
- offset += n
- return buffer.slice(offset - n, offset)
+TransactionBuilder.prototype.addOutput = function (scriptPubKey, value) {
+ if (!this.__canModifyOutputs()) {
+ throw new Error('No, this would invalidate signatures')
}
- function readUInt32 () {
- var i = buffer.readUInt32LE(offset)
- offset += 4
- return i
+ // Attempt to get a script if it's a base58 address string
+ if (typeof scriptPubKey === 'string') {
+ scriptPubKey = baddress.toOutputScript(scriptPubKey, this.network)
}
- var block = new Block()
- block.version = readUInt32()
- block.prevHash = readSlice(32)
- block.merkleRoot = readSlice(32)
- block.timestamp = readUInt32()
- block.bits = readUInt32()
- block.nonce = readUInt32()
+ return this.tx.addOutput(scriptPubKey, value)
+}
- if (buffer.length === 80) return block
+TransactionBuilder.prototype.build = function () {
+ return this.__build(false)
+}
+TransactionBuilder.prototype.buildIncomplete = function () {
+ return this.__build(true)
+}
- function readVarInt () {
- var vi = bufferutils.readVarInt(buffer, offset)
- offset += vi.size
- return vi.number
+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')
}
- // FIXME: poor performance
- function readTransaction () {
- var tx = Transaction.fromBuffer(buffer.slice(offset), true)
+ 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)
- offset += tx.toBuffer().length
- return tx
- }
+ // skip if no result
+ if (!allowIncomplete) {
+ if (SIGNABLE.indexOf(result.type) === -1 && result.type !== bscript.types.P2WPKH) {
+ throw new Error(result.type + ' not supported')
+ }
+ }
- var nTransactions = readVarInt()
- block.transactions = []
+ tx.setInputScript(i, result.script)
+ tx.setWitness(i, result.witness)
+ })
- for (var i = 0; i < nTransactions; ++i) {
- var tx = readTransaction()
- block.transactions.push(tx)
+ if (!allowIncomplete) {
+ // do not rely on this, its merely a last resort
+ if (this.__overMaximumFees(tx.byteLength())) {
+ throw new Error('Transaction has absurd fees')
+ }
}
- return block
-}
-
-Block.fromHex = function (hex) {
- return Block.fromBuffer(new Buffer(hex, 'hex'))
-}
-
-Block.prototype.getHash = function () {
- return crypto.hash256(this.toBuffer(true))
+ return tx
}
-Block.prototype.getId = function () {
- return bufferutils.reverse(this.getHash()).toString('hex')
+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 !== undefined
}
-Block.prototype.getUTCDate = function () {
- var date = new Date(0) // epoch
- date.setUTCSeconds(this.timestamp)
-
- return date
-}
+TransactionBuilder.prototype.sign = function (vin, keyPair, redeemScript, hashType, witnessValue, witnessScript) {
+ if (keyPair.network !== this.network) throw new Error('Inconsistent network')
+ if (!this.inputs[vin]) throw new Error('No input at index: ' + vin)
+ hashType = hashType || Transaction.SIGHASH_ALL
-Block.prototype.toBuffer = function (headersOnly) {
- var buffer = new Buffer(80)
+ var input = this.inputs[vin]
- var offset = 0
- function writeSlice (slice) {
- slice.copy(buffer, offset)
- offset += slice.length
+ // if redeemScript was previously provided, enforce consistency
+ if (input.redeemScript !== undefined &&
+ redeemScript &&
+ !input.redeemScript.equals(redeemScript)) {
+ throw new Error('Inconsistent redeemScript')
}
- function writeUInt32 (i) {
- buffer.writeUInt32LE(i, offset)
- offset += 4
+ var kpPubKey = keyPair.getPublicKeyBuffer()
+ if (!canSign(input)) {
+ prepareInput(input, kpPubKey, redeemScript, witnessValue, witnessScript)
+ if (!canSign(input)) throw Error(input.prevOutType + ' not supported')
}
- writeUInt32(this.version)
- writeSlice(this.prevHash)
- writeSlice(this.merkleRoot)
- writeUInt32(this.timestamp)
- writeUInt32(this.bits)
- writeUInt32(this.nonce)
-
- if (headersOnly || !this.transactions) return buffer
+ // ready to sign
+ var signatureHash
+ if (input.witness) {
+ signatureHash = this.tx.hashForWitnessV0(vin, input.signScript, witnessValue, 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')
- var txLenBuffer = bufferutils.varIntBuffer(this.transactions.length)
- var txBuffers = this.transactions.map(function (tx) {
- return tx.toBuffer()
+ input.signatures[i] = keyPair.sign(signatureHash).toScriptSignature(hashType)
+ return true
})
- return Buffer.concat([buffer, txLenBuffer].concat(txBuffers))
+ if (!signed) throw new Error('Key pair cannot sign for this input')
}
-Block.prototype.toHex = function (headersOnly) {
- return this.toBuffer(headersOnly).toString('hex')
+function signatureHashType (buffer) {
+ return buffer.readUInt8(buffer.length - 1)
}
-module.exports = Block
-
-}).call(this,require("buffer").Buffer)
-},{"./bufferutils":57,"./crypto":58,"./transaction":70,"assert":5,"buffer":7}],57:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var opcodes = require('./opcodes')
+TransactionBuilder.prototype.__canModifyInputs = function () {
+ return this.inputs.every(function (input) {
+ // any signatures?
+ if (input.signatures === undefined) return true
-// https://github.com/feross/buffer/blob/master/index.js#L1127
-function verifuint (value, max) {
- assert(typeof value === 'number', 'cannot write a non-number as a number')
- assert(value >= 0, 'specified a negative value for writing an unsigned value')
- assert(value <= max, 'value is larger than maximum value for type')
- assert(Math.floor(value) === value, 'value has a fractional component')
-}
+ return input.signatures.every(function (signature) {
+ if (!signature) return true
+ var hashType = signatureHashType(signature)
-function pushDataSize (i) {
- return i < opcodes.OP_PUSHDATA1 ? 1
- : i < 0xff ? 2
- : i < 0xffff ? 3
- : 5
+ // if SIGHASH_ANYONECANPAY is set, signatures would not
+ // be invalidated by more inputs
+ return hashType & Transaction.SIGHASH_ANYONECANPAY
+ })
+ })
}
-function readPushDataInt (buffer, offset) {
- var opcode = buffer.readUInt8(offset)
- var number, size
+TransactionBuilder.prototype.__canModifyOutputs = function () {
+ var nInputs = this.tx.ins.length
+ var nOutputs = this.tx.outs.length
- // ~6 bit
- if (opcode < opcodes.OP_PUSHDATA1) {
- number = opcode
- size = 1
+ return this.inputs.every(function (input) {
+ if (input.signatures === undefined) return true
- // 8 bit
- } else if (opcode === opcodes.OP_PUSHDATA1) {
- if (offset + 2 > buffer.length) return null
- number = buffer.readUInt8(offset + 1)
- size = 2
+ return input.signatures.every(function (signature) {
+ if (!signature) return true
+ var hashType = signatureHashType(signature)
- // 16 bit
- } else if (opcode === opcodes.OP_PUSHDATA2) {
- if (offset + 3 > buffer.length) return null
- number = buffer.readUInt16LE(offset + 1)
- size = 3
+ 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
+ }
+ })
+ })
+}
- // 32 bit
- } else {
- if (offset + 5 > buffer.length) return null
- assert.equal(opcode, opcodes.OP_PUSHDATA4, 'Unexpected opcode')
+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)
- number = buffer.readUInt32LE(offset + 1)
- size = 5
- }
+ // 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 {
- opcode: opcode,
- number: number,
- size: size
- }
+ return feeRate > this.maximumFeeRate
}
-function readUInt64LE (buffer, offset) {
- var a = buffer.readUInt32LE(offset)
- var b = buffer.readUInt32LE(offset + 4)
- b *= 0x100000000
+module.exports = TransactionBuilder
- verifuint(b + a, 0x001fffffffffffff)
+},{"./address":42,"./crypto":45,"./ecpair":47,"./ecsignature":48,"./networks":51,"./script":52,"./transaction":76,"./types":78,"bitcoin-ops":40,"safe-buffer":98,"typeforce":109}],78:[function(require,module,exports){
+var typeforce = require('typeforce')
- return b + a
+var UINT31_MAX = Math.pow(2, 31) - 1
+function UInt31 (value) {
+ return typeforce.UInt32(value) && value <= UINT31_MAX
}
-function readVarInt (buffer, offset) {
- var t = buffer.readUInt8(offset)
- var number, size
+function BIP32Path (value) {
+ return typeforce.String(value) && value.match(/^(m\/)?(\d+'?\/)*\d+'?$/)
+}
+BIP32Path.toJSON = function () { return 'BIP32 derivation path' }
- // 8 bit
- if (t < 253) {
- number = t
- size = 1
+var SATOSHI_MAX = 21 * 1e14
+function Satoshi (value) {
+ return typeforce.UInt53(value) && value <= SATOSHI_MAX
+}
- // 16 bit
- } else if (t < 254) {
- number = buffer.readUInt16LE(offset + 1)
- size = 3
+// external dependent types
+var BigInt = typeforce.quacksLike('BigInteger')
+var ECPoint = typeforce.quacksLike('Point')
- // 32 bit
- } else if (t < 255) {
- number = buffer.readUInt32LE(offset + 1)
- size = 5
+// 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
+ },
+ pubKeyHash: typeforce.UInt8,
+ scriptHash: typeforce.UInt8,
+ wif: typeforce.UInt8
+})
- // 64 bit
- } else {
- number = readUInt64LE(buffer, offset + 1)
- size = 9
- }
+// 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
+}
- return {
- number: number,
- size: size
- }
+for (var typeName in typeforce) {
+ types[typeName] = typeforce[typeName]
}
-function writePushDataInt (buffer, number, offset) {
- var size = pushDataSize(number)
+module.exports = types
- // ~6 bit
- if (size === 1) {
- buffer.writeUInt8(number, offset)
+},{"typeforce":109}],79:[function(require,module,exports){
+var basex = require('base-x')
+var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
- // 8 bit
- } else if (size === 2) {
- buffer.writeUInt8(opcodes.OP_PUSHDATA1, offset)
- buffer.writeUInt8(number, offset + 1)
+module.exports = basex(ALPHABET)
- // 16 bit
- } else if (size === 3) {
- buffer.writeUInt8(opcodes.OP_PUSHDATA2, offset)
- buffer.writeUInt16LE(number, offset + 1)
+},{"base-x":34}],80:[function(require,module,exports){
+(function (Buffer){
+'use strict'
- // 32 bit
- } else {
- buffer.writeUInt8(opcodes.OP_PUSHDATA4, offset)
- buffer.writeUInt32LE(number, offset + 1)
- }
+var base58 = require('bs58')
+var createHash = require('create-hash')
- return size
+// SHA256(SHA256(buffer))
+function sha256x2 (buffer) {
+ var tmp = createHash('sha256').update(buffer).digest()
+ return createHash('sha256').update(tmp).digest()
}
-function writeUInt64LE (buffer, value, offset) {
- verifuint(value, 0x001fffffffffffff)
-
- buffer.writeInt32LE(value & -1, offset)
- buffer.writeUInt32LE(Math.floor(value / 0x100000000), offset + 4)
-}
+// Encode a buffer as a base58-check encoded string
+function encode (payload) {
+ var checksum = sha256x2(payload)
-function varIntSize (i) {
- return i < 253 ? 1
- : i < 0x10000 ? 3
- : i < 0x100000000 ? 5
- : 9
+ return base58.encode(Buffer.concat([
+ payload,
+ checksum
+ ], payload.length + 4))
}
-function writeVarInt (buffer, number, offset) {
- var size = varIntSize(number)
-
- // 8 bit
- if (size === 1) {
- buffer.writeUInt8(number, offset)
-
- // 16 bit
- } else if (size === 3) {
- buffer.writeUInt8(253, offset)
- buffer.writeUInt16LE(number, offset + 1)
-
- // 32 bit
- } else if (size === 5) {
- buffer.writeUInt8(254, offset)
- buffer.writeUInt32LE(number, offset + 1)
+function decodeRaw (buffer) {
+ var payload = buffer.slice(0, -4)
+ var checksum = buffer.slice(-4)
+ var newChecksum = sha256x2(payload)
- // 64 bit
- } else {
- buffer.writeUInt8(255, offset)
- writeUInt64LE(buffer, number, offset + 1)
- }
+ if (checksum[0] ^ newChecksum[0] |
+ checksum[1] ^ newChecksum[1] |
+ checksum[2] ^ newChecksum[2] |
+ checksum[3] ^ newChecksum[3]) return
- return size
+ return payload
}
-function varIntBuffer (i) {
- var size = varIntSize(i)
- var buffer = new Buffer(size)
- writeVarInt(buffer, i, 0)
+// 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 buffer
+ return decodeRaw(buffer)
}
-function reverse (buffer) {
- var buffer2 = new Buffer(buffer)
- Array.prototype.reverse.call(buffer2)
- return buffer2
+function decode (string) {
+ var buffer = base58.decode(string)
+ var payload = decodeRaw(buffer)
+ if (!payload) throw new Error('Invalid checksum')
+ return payload
}
module.exports = {
- pushDataSize: pushDataSize,
- readPushDataInt: readPushDataInt,
- readUInt64LE: readUInt64LE,
- readVarInt: readVarInt,
- reverse: reverse,
- varIntBuffer: varIntBuffer,
- varIntSize: varIntSize,
- writePushDataInt: writePushDataInt,
- writeUInt64LE: writeUInt64LE,
- writeVarInt: writeVarInt
+ encode: encode,
+ decode: decode,
+ decodeUnsafe: decodeUnsafe
}
}).call(this,require("buffer").Buffer)
-},{"./opcodes":67,"assert":5,"buffer":7}],58:[function(require,module,exports){
-var createHash = require('create-hash')
+},{"bs58":79,"buffer":4,"create-hash":82}],81:[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 hash160 (buffer) {
- return ripemd160(sha256(buffer))
+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)
-function hash256 (buffer) {
- return sha256(sha256(buffer))
-}
+CipherBase.prototype.update = function (data, inputEnc, outputEnc) {
+ if (typeof data === 'string') {
+ data = Buffer.from(data, inputEnc)
+ }
-function ripemd160 (buffer) {
- return createHash('rmd160').update(buffer).digest()
-}
+ var outData = this._update(data)
+ if (this.hashMode) return this
-function sha1 (buffer) {
- return createHash('sha1').update(buffer).digest()
-}
+ if (outputEnc) {
+ outData = this._toString(outData, outputEnc)
+ }
-function sha256 (buffer) {
- return createHash('sha256').update(buffer).digest()
+ return outData
}
-// FIXME: Name not consistent with others
-var createHmac = require('create-hmac')
+CipherBase.prototype.setAutoPadding = function () {}
+CipherBase.prototype.getAuthTag = function () {
+ throw new Error('trying to get auth tag in unsupported state')
+}
-function HmacSHA256 (buffer, secret) {
- console.warn('Hmac* functions are deprecated for removal in 2.0.0, use node crypto instead')
- return createHmac('sha256', secret).update(buffer).digest()
+CipherBase.prototype.setAuthTag = function () {
+ throw new Error('trying to set auth tag in unsupported state')
}
-function HmacSHA512 (buffer, secret) {
- console.warn('Hmac* functions are deprecated for removal in 2.0.0, use node crypto instead')
- return createHmac('sha512', secret).update(buffer).digest()
+CipherBase.prototype.setAAD = function () {
+ throw new Error('trying to set aad in unsupported state')
}
-module.exports = {
- ripemd160: ripemd160,
- sha1: sha1,
- sha256: sha256,
- hash160: hash160,
- hash256: hash256,
- HmacSHA256: HmacSHA256,
- HmacSHA512: HmacSHA512
+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
+ }
-},{"create-hash":32,"create-hmac":45}],59:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var createHmac = require('create-hmac')
-var typeForce = require('typeforce')
+ done(err)
+}
+CipherBase.prototype._finalOrDigest = function (outputEnc) {
+ var outData = this.__final() || Buffer.alloc(0)
+ if (outputEnc) {
+ outData = this._toString(outData, outputEnc, true)
+ }
+ return outData
+}
-var BigInteger = require('bigi')
-var ECSignature = require('./ecsignature')
+CipherBase.prototype._toString = function (value, enc, fin) {
+ if (!this._decoder) {
+ this._decoder = new StringDecoder(enc)
+ this._encoding = enc
+ }
-var ZERO = new Buffer([0])
-var ONE = new Buffer([1])
+ if (this._encoding !== enc) throw new Error('can\'t switch encodings')
-// https://tools.ietf.org/html/rfc6979#section-3.2
-function deterministicGenerateK (curve, hash, d, checkSig) {
- typeForce('Buffer', hash)
- typeForce('BigInteger', d)
+ var out = this._decoder.write(value)
+ if (fin) {
+ out += this._decoder.end()
+ }
- // FIXME: remove/uncomment for 2.0.0
- // typeForce('Function', checkSig)
+ return out
+}
- if (typeof checkSig !== 'function') {
- console.warn('deterministicGenerateK requires a checkSig callback in 2.0.0, see #337 for more information')
+module.exports = CipherBase
- checkSig = function (k) {
- var G = curve.G
- var n = curve.n
- var e = BigInteger.fromBuffer(hash)
+},{"inherits":93,"safe-buffer":98,"stream":27,"string_decoder":28}],82:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var inherits = require('inherits')
+var md5 = require('./md5')
+var RIPEMD160 = require('ripemd160')
+var sha = require('sha.js')
- var Q = G.multiply(k)
+var Base = require('cipher-base')
- if (curve.isInfinity(Q))
- return false
+function HashNoConstructor (hash) {
+ Base.call(this, 'digest')
- var r = Q.affineX.mod(n)
- if (r.signum() === 0)
- return false
+ this._hash = hash
+ this.buffers = []
+}
- var s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n)
- if (s.signum() === 0)
- return false
+inherits(HashNoConstructor, Base)
- return true
- }
- }
+HashNoConstructor.prototype._update = function (data) {
+ this.buffers.push(data)
+}
- // sanity check
- assert.equal(hash.length, 32, 'Hash must be 256 bit')
+HashNoConstructor.prototype._final = function () {
+ var buf = Buffer.concat(this.buffers)
+ var r = this._hash(buf)
+ this.buffers = null
- var x = d.toBuffer(32)
- var k = new Buffer(32)
- var v = new Buffer(32)
+ return r
+}
- // Step A, ignored as hash already provided
- // Step B
- v.fill(1)
+function Hash (hash) {
+ Base.call(this, 'digest')
- // Step C
- k.fill(0)
+ this._hash = hash
+}
- // Step D
- k = createHmac('sha256', k)
- .update(v)
- .update(ZERO)
- .update(x)
- .update(hash)
- .digest()
+inherits(Hash, Base)
- // Step E
- v = createHmac('sha256', k).update(v).digest()
+Hash.prototype._update = function (data) {
+ this._hash.update(data)
+}
- // Step F
- k = createHmac('sha256', k)
- .update(v)
- .update(ONE)
- .update(x)
- .update(hash)
- .digest()
+Hash.prototype._final = function () {
+ return this._hash.digest()
+}
- // Step G
- v = createHmac('sha256', k).update(v).digest()
+module.exports = function createHash (alg) {
+ alg = alg.toLowerCase()
+ if (alg === 'md5') return new HashNoConstructor(md5)
+ if (alg === 'rmd160' || alg === 'ripemd160') return new Hash(new RIPEMD160())
- // Step H1/H2a, ignored as tlen === qlen (256 bit)
- // Step H2b
- v = createHmac('sha256', k).update(v).digest()
+ return new Hash(sha(alg))
+}
- var T = BigInteger.fromBuffer(v)
+}).call(this,require("buffer").Buffer)
+},{"./md5":84,"buffer":4,"cipher-base":81,"inherits":93,"ripemd160":97,"sha.js":100}],83:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var intSize = 4
+var zeroBuffer = new Buffer(intSize)
+zeroBuffer.fill(0)
- // Step H3, repeat until T is within the interval [1, n - 1] and is suitable for ECDSA
- while ((T.signum() <= 0) || (T.compareTo(curve.n) >= 0) || !checkSig(T)) {
- k = createHmac('sha256', k)
- .update(v)
- .update(ZERO)
- .digest()
+var charSize = 8
+var hashSize = 16
- v = createHmac('sha256', k).update(v).digest()
+function toArray (buf) {
+ if ((buf.length % intSize) !== 0) {
+ var len = buf.length + (intSize - (buf.length % intSize))
+ buf = Buffer.concat([buf, zeroBuffer], len)
+ }
- // Step H1/H2a, again, ignored as tlen === qlen (256 bit)
- // Step H2b again
- v = createHmac('sha256', k).update(v).digest()
- T = BigInteger.fromBuffer(v)
+ var arr = new Array(buf.length >>> 2)
+ for (var i = 0, j = 0; i < buf.length; i += intSize, j++) {
+ arr[j] = buf.readInt32LE(i)
}
- return T
+ return arr
}
-function sign (curve, hash, d) {
- var r, s
+module.exports = function hash (buf, fn) {
+ var arr = fn(toArray(buf), buf.length * charSize)
+ buf = new Buffer(hashSize)
+ for (var i = 0; i < arr.length; i++) {
+ buf.writeInt32LE(arr[i], i << 2, true)
+ }
+ return buf
+}
- var e = BigInteger.fromBuffer(hash)
- var n = curve.n
- var G = curve.G
+}).call(this,require("buffer").Buffer)
+},{"buffer":4}],84:[function(require,module,exports){
+'use strict'
+/*
+ * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
+ * Digest Algorithm, as defined in RFC 1321.
+ * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ * Distributed under the BSD License
+ * See http://pajhome.org.uk/crypt/md5 for more info.
+ */
+
+var makeHash = require('./make-hash')
+
+/*
+ * Calculate the MD5 of an array of little-endian words, and a bit length
+ */
+function core_md5 (x, len) {
+ /* append padding */
+ x[len >> 5] |= 0x80 << ((len) % 32)
+ x[(((len + 64) >>> 9) << 4) + 14] = len
+
+ var a = 1732584193
+ var b = -271733879
+ var c = -1732584194
+ var d = 271733878
+
+ for (var i = 0; i < x.length; i += 16) {
+ var olda = a
+ var oldb = b
+ var oldc = c
+ var oldd = d
+
+ a = md5_ff(a, b, c, d, x[i + 0], 7, -680876936)
+ d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586)
+ c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819)
+ b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330)
+ a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897)
+ d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426)
+ c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341)
+ b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983)
+ a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416)
+ d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417)
+ c = md5_ff(c, d, a, b, x[i + 10], 17, -42063)
+ b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162)
+ a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682)
+ d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101)
+ c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290)
+ b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329)
+
+ a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510)
+ d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632)
+ c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713)
+ b = md5_gg(b, c, d, a, x[i + 0], 20, -373897302)
+ a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691)
+ d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083)
+ c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335)
+ b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848)
+ a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438)
+ d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690)
+ c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961)
+ b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501)
+ a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467)
+ d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784)
+ c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473)
+ b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734)
+
+ a = md5_hh(a, b, c, d, x[i + 5], 4, -378558)
+ d = md5_hh(d, a, b, c, x[i + 8], 11, -2022574463)
+ c = md5_hh(c, d, a, b, x[i + 11], 16, 1839030562)
+ b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556)
+ a = md5_hh(a, b, c, d, x[i + 1], 4, -1530992060)
+ d = md5_hh(d, a, b, c, x[i + 4], 11, 1272893353)
+ c = md5_hh(c, d, a, b, x[i + 7], 16, -155497632)
+ b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640)
+ a = md5_hh(a, b, c, d, x[i + 13], 4, 681279174)
+ d = md5_hh(d, a, b, c, x[i + 0], 11, -358537222)
+ c = md5_hh(c, d, a, b, x[i + 3], 16, -722521979)
+ b = md5_hh(b, c, d, a, x[i + 6], 23, 76029189)
+ a = md5_hh(a, b, c, d, x[i + 9], 4, -640364487)
+ d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835)
+ c = md5_hh(c, d, a, b, x[i + 15], 16, 530742520)
+ b = md5_hh(b, c, d, a, x[i + 2], 23, -995338651)
+
+ a = md5_ii(a, b, c, d, x[i + 0], 6, -198630844)
+ d = md5_ii(d, a, b, c, x[i + 7], 10, 1126891415)
+ c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905)
+ b = md5_ii(b, c, d, a, x[i + 5], 21, -57434055)
+ a = md5_ii(a, b, c, d, x[i + 12], 6, 1700485571)
+ d = md5_ii(d, a, b, c, x[i + 3], 10, -1894986606)
+ c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523)
+ b = md5_ii(b, c, d, a, x[i + 1], 21, -2054922799)
+ a = md5_ii(a, b, c, d, x[i + 8], 6, 1873313359)
+ d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744)
+ c = md5_ii(c, d, a, b, x[i + 6], 15, -1560198380)
+ b = md5_ii(b, c, d, a, x[i + 13], 21, 1309151649)
+ a = md5_ii(a, b, c, d, x[i + 4], 6, -145523070)
+ d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379)
+ c = md5_ii(c, d, a, b, x[i + 2], 15, 718787259)
+ b = md5_ii(b, c, d, a, x[i + 9], 21, -343485551)
+
+ a = safe_add(a, olda)
+ b = safe_add(b, oldb)
+ c = safe_add(c, oldc)
+ d = safe_add(d, oldd)
+ }
+
+ return [a, b, c, d]
+}
- deterministicGenerateK(curve, hash, d, function (k) {
- var Q = G.multiply(k)
+/*
+ * These functions implement the four basic operations the algorithm uses.
+ */
+function md5_cmn (q, a, b, x, s, t) {
+ return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b)
+}
- if (curve.isInfinity(Q))
- return false
+function md5_ff (a, b, c, d, x, s, t) {
+ return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t)
+}
- r = Q.affineX.mod(n)
- if (r.signum() === 0)
- return false
+function md5_gg (a, b, c, d, x, s, t) {
+ return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t)
+}
- s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n)
- if (s.signum() === 0)
- return false
+function md5_hh (a, b, c, d, x, s, t) {
+ return md5_cmn(b ^ c ^ d, a, b, x, s, t)
+}
- return true
- })
+function md5_ii (a, b, c, d, x, s, t) {
+ return md5_cmn(c ^ (b | (~d)), a, b, x, s, t)
+}
- var N_OVER_TWO = n.shiftRight(1)
+/*
+ * Add integers, wrapping at 2^32. This uses 16-bit operations internally
+ * to work around bugs in some JS interpreters.
+ */
+function safe_add (x, y) {
+ var lsw = (x & 0xFFFF) + (y & 0xFFFF)
+ var msw = (x >> 16) + (y >> 16) + (lsw >> 16)
+ return (msw << 16) | (lsw & 0xFFFF)
+}
- // enforce low S values, see bip62: 'low s values in signatures'
- if (s.compareTo(N_OVER_TWO) > 0) {
- s = n.subtract(s)
- }
+/*
+ * Bitwise rotate a 32-bit number to the left.
+ */
+function bit_rol (num, cnt) {
+ return (num << cnt) | (num >>> (32 - cnt))
+}
- return new ECSignature(r, s)
+module.exports = function md5 (buf) {
+ return makeHash(buf, core_md5)
}
-function verifyRaw (curve, e, signature, Q) {
- var n = curve.n
- var G = curve.G
+},{"./make-hash":83}],85:[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 r = signature.r
- var s = signature.s
+var sha = require('sha.js')
- // 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
+var ZEROS = Buffer.alloc(128)
- // c = s^-1 mod n
- var c = s.modInverse(n)
+function Hmac (alg, key) {
+ Base.call(this, 'digest')
+ if (typeof key === 'string') {
+ key = Buffer.from(key)
+ }
- // 1.4.4 Compute u1 = es^−1 mod n
- // u2 = rs^−1 mod n
- var u1 = e.multiply(c).mod(n)
- var u2 = r.multiply(c).mod(n)
+ var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64
- // 1.4.5 Compute R = (xR, yR) = u1G + u2Q
- var R = G.multiplyTwo(u1, Q, u2)
- var v = R.affineX.mod(n)
+ 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)
+ }
- // 1.4.5 (cont.) Enforce R is not at infinity
- if (curve.isInfinity(R)) return false
+ var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
+ var opad = this._opad = Buffer.allocUnsafe(blocksize)
- // 1.4.8 If v = r, output "valid", and if v != r, output "invalid"
- return v.equals(r)
+ 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)
}
-function verify (curve, hash, signature, Q) {
- // 1.4.2 H = Hash(M), already done by the user
- // 1.4.3 e = H
- var e = BigInteger.fromBuffer(hash)
+inherits(Hmac, Base)
- return verifyRaw(curve, e, signature, Q)
+Hmac.prototype._update = function (data) {
+ this._hash.update(data)
}
-/**
- * Recover a public key from a signature.
- *
- * See SEC 1: Elliptic Curve Cryptography, section 4.1.6, "Public
- * Key Recovery Operation".
- *
- * http://www.secg.org/download/aid-780/sec1-v2.pdf
- */
-function recoverPubKey (curve, e, signature, i) {
- assert.strictEqual(i & 3, i, 'Recovery param is more than two bits')
-
- var n = curve.n
- var G = curve.G
+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()
+}
- var r = signature.r
- var s = signature.s
+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)
+}
- assert(r.signum() > 0 && r.compareTo(n) < 0, 'Invalid r value')
- assert(s.signum() > 0 && s.compareTo(n) < 0, 'Invalid s value')
+},{"./legacy":86,"cipher-base":81,"create-hash/md5":84,"inherits":93,"ripemd160":97,"safe-buffer":98,"sha.js":100}],86:[function(require,module,exports){
+'use strict'
+var inherits = require('inherits')
+var Buffer = require('safe-buffer').Buffer
- // A set LSB signifies that the y-coordinate is odd
- var isYOdd = i & 1
+var Base = require('cipher-base')
- // The more significant bit specifies whether we should use the
- // first or second candidate key.
- var isSecondKey = i >> 1
+var ZEROS = Buffer.alloc(128)
+var blocksize = 64
- // 1.1 Let x = r + jn
- var x = isSecondKey ? r.add(n) : r
- var R = curve.pointFromX(isYOdd, x)
+function Hmac (alg, key) {
+ Base.call(this, 'digest')
+ if (typeof key === 'string') {
+ key = Buffer.from(key)
+ }
- // 1.4 Check that nR is at infinity
- var nR = R.multiply(n)
- assert(curve.isInfinity(nR), 'nR is not a valid curve point')
+ this._alg = alg
+ this._key = key
- // Compute -e from e
- var eNeg = e.negate().mod(n)
+ if (key.length > blocksize) {
+ key = alg(key)
+ } else if (key.length < blocksize) {
+ key = Buffer.concat([key, ZEROS], blocksize)
+ }
- // 1.6.1 Compute Q = r^-1 (sR - eG)
- // Q = r^-1 (sR + -eG)
- var rInv = r.modInverse(n)
+ var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
+ var opad = this._opad = Buffer.allocUnsafe(blocksize)
- var Q = R.multiplyTwo(s, G, eNeg).multiply(rInv)
- curve.validate(Q)
+ for (var i = 0; i < blocksize; i++) {
+ ipad[i] = key[i] ^ 0x36
+ opad[i] = key[i] ^ 0x5C
+ }
- return Q
+ this._hash = [ipad]
}
-/**
- * Calculate pubkey extraction parameter.
- *
- * When extracting a pubkey from a signature, we have to
- * distinguish four different cases. Rather than putting this
- * burden on the verifier, Bitcoin includes a 2-bit value with the
- * signature.
- *
- * This function simply tries all four cases and returns the value
- * that resulted in a successful pubkey recovery.
- */
-function calcPubKeyRecoveryParam (curve, e, signature, Q) {
- for (var i = 0; i < 4; i++) {
- var Qprime = recoverPubKey(curve, e, signature, i)
-
- // 1.6.2 Verify Q
- if (Qprime.equals(Q)) {
- return i
- }
- }
+inherits(Hmac, Base)
- throw new Error('Unable to find valid recovery factor')
+Hmac.prototype._update = function (data) {
+ this._hash.push(data)
}
-module.exports = {
- calcPubKeyRecoveryParam: calcPubKeyRecoveryParam,
- deterministicGenerateK: deterministicGenerateK,
- recoverPubKey: recoverPubKey,
- sign: sign,
- verify: verify,
- verifyRaw: verifyRaw
+Hmac.prototype._final = function () {
+ var h = this._alg(Buffer.concat(this._hash))
+ return this._alg(Buffer.concat([this._opad, h]))
}
+module.exports = Hmac
-}).call(this,require("buffer").Buffer)
-},{"./ecsignature":62,"assert":5,"bigi":3,"buffer":7,"create-hmac":45,"typeforce":53}],60:[function(require,module,exports){
-(function (Buffer){
+},{"cipher-base":81,"inherits":93,"safe-buffer":98}],87:[function(require,module,exports){
var assert = require('assert')
-var base58check = require('bs58check')
-var ecdsa = require('./ecdsa')
-var networks = require('./networks')
-var randomBytes = require('randombytes')
-var typeForce = require('typeforce')
-
var BigInteger = require('bigi')
-var ECPubKey = require('./ecpubkey')
-
-var ecurve = require('ecurve')
-var secp256k1 = ecurve.getCurveByName('secp256k1')
-
-function ECKey (d, compressed) {
- assert(d.signum() > 0, 'Private key must be greater than 0')
- assert(d.compareTo(ECKey.curve.n) < 0, 'Private key must be less than the curve order')
- var Q = ECKey.curve.G.multiply(d)
+var Point = require('./point')
- this.d = d
- this.pub = new ECPubKey(Q, compressed)
-}
+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
-// Constants
-ECKey.curve = secp256k1
+ this.infinity = new Point(this, null, null, BigInteger.ZERO)
-// Static constructors
-ECKey.fromWIF = function (string) {
- var payload = base58check.decode(string)
- var compressed = false
+ // result caching
+ this.pOverFour = p.add(BigInteger.ONE).shiftRight(2)
- // Ignore the version byte
- payload = payload.slice(1)
+ // determine size of p in bytes
+ this.pLength = Math.floor((this.p.bitLength() + 7) / 8)
+}
- if (payload.length === 33) {
- assert.strictEqual(payload[32], 0x01, 'Invalid compression flag')
+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
- // Truncate the compression flag
- payload = payload.slice(0, -1)
- compressed = true
+ var y = beta
+ if (beta.isEven() ^ !isOdd) {
+ y = this.p.subtract(y) // -y % p
}
- assert.equal(payload.length, 32, 'Invalid WIF payload length')
-
- var d = BigInteger.fromBuffer(payload)
- return new ECKey(d, compressed)
+ return Point.fromAffine(this, x, y)
}
-ECKey.makeRandom = function (compressed, rng) {
- rng = rng || randomBytes
-
- var buffer = rng(32)
- typeForce('Buffer', buffer)
- assert.equal(buffer.length, 32, 'Expected 256-bit Buffer from RNG')
-
- var d = BigInteger.fromBuffer(buffer)
- d = d.mod(ECKey.curve.n)
+Curve.prototype.isInfinity = function (Q) {
+ if (Q === this.infinity) return true
- return new ECKey(d, compressed)
+ return Q.z.signum() === 0 && Q.y.signum() !== 0
}
-// Export functions
-ECKey.prototype.toWIF = function (network) {
- network = network || networks.bitcoin
-
- var bufferLen = this.pub.compressed ? 34 : 33
- var buffer = new Buffer(bufferLen)
-
- buffer.writeUInt8(network.wif, 0)
- this.d.toBuffer(32).copy(buffer, 1)
+Curve.prototype.isOnCurve = function (Q) {
+ if (this.isInfinity(Q)) return true
- if (this.pub.compressed) {
- buffer.writeUInt8(0x01, 33)
- }
+ var x = Q.affineX
+ var y = Q.affineY
+ var a = this.a
+ var b = this.b
+ var p = this.p
- return base58check.encode(buffer)
-}
+ // 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
-// Operations
-ECKey.prototype.sign = function (hash) {
- return ecdsa.sign(ECKey.curve, hash, this.d)
+ // 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)
}
-module.exports = ECKey
+/**
+ * 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')
-}).call(this,require("buffer").Buffer)
-},{"./ecdsa":59,"./ecpubkey":61,"./networks":66,"assert":5,"bigi":3,"bs58check":31,"buffer":7,"ecurve":49,"randombytes":52,"typeforce":53}],61:[function(require,module,exports){
-(function (Buffer){
-var crypto = require('./crypto')
-var ecdsa = require('./ecdsa')
-var typeForce = require('typeforce')
-var networks = require('./networks')
+ // 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')
-var Address = require('./address')
+ return true
+}
-var ecurve = require('ecurve')
-var secp256k1 = ecurve.getCurveByName('secp256k1')
+module.exports = Curve
-function ECPubKey (Q, compressed) {
- if (compressed === undefined) {
- compressed = true
+},{"./point":91,"assert":1,"bigi":37}],88:[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"
}
-
- typeForce('Point', Q)
- typeForce('Boolean', compressed)
-
- this.compressed = compressed
- this.Q = Q
}
-// Constants
-ECPubKey.curve = secp256k1
+},{}],89:[function(require,module,exports){
+var Point = require('./point')
+var Curve = require('./curve')
-// Static constructors
-ECPubKey.fromBuffer = function (buffer) {
- var Q = ecurve.Point.decodeFrom(ECPubKey.curve, buffer)
- return new ECPubKey(Q, Q.compressed)
-}
+var getCurveByName = require('./names')
-ECPubKey.fromHex = function (hex) {
- return ECPubKey.fromBuffer(new Buffer(hex, 'hex'))
+module.exports = {
+ Curve: Curve,
+ Point: Point,
+ getCurveByName: getCurveByName
}
-// Operations
-ECPubKey.prototype.getAddress = function (network) {
- network = network || networks.bitcoin
+},{"./curve":87,"./names":90,"./point":91}],90:[function(require,module,exports){
+var BigInteger = require('bigi')
- return new Address(crypto.hash160(this.toBuffer()), network.pubKeyHash)
-}
+var curves = require('./curves.json')
+var Curve = require('./curve')
-ECPubKey.prototype.verify = function (hash, signature) {
- return ecdsa.verify(ECPubKey.curve, hash, signature, this.Q)
-}
+function getCurveByName (name) {
+ var curve = curves[name]
+ if (!curve) return null
-// Export functions
-ECPubKey.prototype.toBuffer = function () {
- return this.Q.getEncoded(this.compressed)
-}
+ 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)
-ECPubKey.prototype.toHex = function () {
- return this.toBuffer().toString('hex')
+ return new Curve(p, a, b, Gx, Gy, n, h)
}
-module.exports = ECPubKey
+module.exports = getCurveByName
-}).call(this,require("buffer").Buffer)
-},{"./address":54,"./crypto":58,"./ecdsa":59,"./networks":66,"buffer":7,"ecurve":49,"typeforce":53}],62:[function(require,module,exports){
+},{"./curve":87,"./curves.json":88,"bigi":37}],91:[function(require,module,exports){
(function (Buffer){
var assert = require('assert')
-var typeForce = require('typeforce')
-
var BigInteger = require('bigi')
-function ECSignature (r, s) {
- typeForce('BigInteger', r)
- typeForce('BigInteger', s)
-
- this.r = r
- this.s = s
-}
+var THREE = BigInteger.valueOf(3)
-ECSignature.parseCompact = function (buffer) {
- assert.equal(buffer.length, 65, 'Invalid signature length')
- var i = buffer.readUInt8(0) - 27
+function Point (curve, x, y, z) {
+ assert.notStrictEqual(z, undefined, 'Missing Z coordinate')
- // At most 3 bits
- assert.equal(i, i & 7, 'Invalid signature parameter')
- var compressed = !!(i & 4)
+ this.curve = curve
+ this.x = x
+ this.y = y
+ this.z = z
+ this._zInv = null
- // Recovery param only
- i = i & 3
+ this.compressed = true
+}
- var r = BigInteger.fromBuffer(buffer.slice(1, 33))
- var s = BigInteger.fromBuffer(buffer.slice(33))
+Object.defineProperty(Point.prototype, 'zInv', {
+ get: function () {
+ if (this._zInv === null) {
+ this._zInv = this.z.modInverse(this.curve.p)
+ }
- return {
- compressed: compressed,
- i: i,
- signature: new ECSignature(r, s)
+ return this._zInv
}
-}
+})
-ECSignature.fromDER = function (buffer) {
- assert.equal(buffer.readUInt8(0), 0x30, 'Not a DER sequence')
- assert.equal(buffer.readUInt8(1), buffer.length - 2, 'Invalid sequence length')
- assert.equal(buffer.readUInt8(2), 0x02, 'Expected a DER integer')
+Object.defineProperty(Point.prototype, 'affineX', {
+ get: function () {
+ return this.x.multiply(this.zInv).mod(this.curve.p)
+ }
+})
- var rLen = buffer.readUInt8(3)
- assert(rLen > 0, 'R length is zero')
+Object.defineProperty(Point.prototype, 'affineY', {
+ get: function () {
+ return this.y.multiply(this.zInv).mod(this.curve.p)
+ }
+})
- var offset = 4 + rLen
- assert.equal(buffer.readUInt8(offset), 0x02, 'Expected a DER integer (2)')
+Point.fromAffine = function (curve, x, y) {
+ return new Point(curve, x, y, BigInteger.ONE)
+}
- var sLen = buffer.readUInt8(offset + 1)
- assert(sLen > 0, 'S length is zero')
+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)
- var rB = buffer.slice(4, offset)
- var sB = buffer.slice(offset + 2)
- offset += 2 + sLen
+ // u = Y2 * Z1 - Y1 * Z2
+ var u = other.y.multiply(this.z).subtract(this.y.multiply(other.z)).mod(this.curve.p)
- if (rLen > 1 && rB.readUInt8(0) === 0x00) {
- assert(rB.readUInt8(1) & 0x80, 'R value excessively padded')
- }
+ if (u.signum() !== 0) return false
- if (sLen > 1 && sB.readUInt8(0) === 0x00) {
- assert(sB.readUInt8(1) & 0x80, 'S value excessively padded')
- }
+ // v = X2 * Z1 - X1 * Z2
+ var v = other.x.multiply(this.z).subtract(this.x.multiply(other.z)).mod(this.curve.p)
- assert.equal(offset, buffer.length, 'Invalid DER encoding')
- var r = BigInteger.fromDERInteger(rB)
- var s = BigInteger.fromDERInteger(sB)
+ return v.signum() === 0
+}
- assert(r.signum() >= 0, 'R value is negative')
- assert(s.signum() >= 0, 'S value is negative')
+Point.prototype.negate = function () {
+ var y = this.curve.p.subtract(this.y)
- return new ECSignature(r, s)
+ return new Point(this.curve, this.x, y, this.z)
}
-// 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
+Point.prototype.add = function (b) {
+ if (this.curve.isInfinity(this)) return b
+ if (this.curve.isInfinity(b)) return this
- assert(hashTypeMod > 0x00 && hashTypeMod < 0x04, 'Invalid hashType ' + hashType)
+ var x1 = this.x
+ var y1 = this.y
+ var x2 = b.x
+ var y2 = b.y
- return {
- signature: ECSignature.fromDER(buffer.slice(0, -1)),
- hashType: hashType
- }
-}
+ // 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)
-ECSignature.prototype.toCompact = function (i, compressed) {
- if (compressed) {
- i += 4
- }
+ if (v.signum() === 0) {
+ if (u.signum() === 0) {
+ return this.twice() // this == b, so double
+ }
- i += 27
+ return this.curve.infinity // this = -b, so infinity
+ }
- var buffer = new Buffer(65)
- buffer.writeUInt8(i, 0)
+ var v2 = v.square()
+ var v3 = v2.multiply(v)
+ var x1v2 = x1.multiply(v2)
+ var zu2 = u.square().multiply(this.z)
- this.r.toBuffer(32).copy(buffer, 1)
- this.s.toBuffer(32).copy(buffer, 33)
+ // 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 buffer
+ return new Point(this.curve, x3, y3, z3)
}
-ECSignature.prototype.toDER = function () {
- var rBa = this.r.toDERInteger()
- var sBa = this.s.toDERInteger()
-
- var sequence = []
-
- // INTEGER
- sequence.push(0x02, rBa.length)
- sequence = sequence.concat(rBa)
+Point.prototype.twice = function () {
+ if (this.curve.isInfinity(this)) return this
+ if (this.y.signum() === 0) return this.curve.infinity
- // INTEGER
- sequence.push(0x02, sBa.length)
- sequence = sequence.concat(sBa)
+ var x1 = this.x
+ var y1 = this.y
- // SEQUENCE
- sequence.unshift(0x30, sequence.length)
+ var y1z1 = y1.multiply(this.z).mod(this.curve.p)
+ var y1sqz1 = y1z1.multiply(y1).mod(this.curve.p)
+ var a = this.curve.a
- return new Buffer(sequence)
-}
+ // w = 3 * x1^2 + a * z1^2
+ var w = x1.square().multiply(THREE)
-ECSignature.prototype.toScriptSignature = function (hashType) {
- var hashTypeMod = hashType & ~0x80
- assert(hashTypeMod > 0x00 && hashTypeMod < 0x04, 'Invalid hashType ' + hashType)
+ if (a.signum() !== 0) {
+ w = w.add(this.z.square().multiply(a))
+ }
- var hashTypeBuffer = new Buffer(1)
- hashTypeBuffer.writeUInt8(hashType, 0)
+ 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 Buffer.concat([this.toDER(), hashTypeBuffer])
+ return new Point(this.curve, x3, y3, z3)
}
-module.exports = ECSignature
+// 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
-}).call(this,require("buffer").Buffer)
-},{"assert":5,"bigi":3,"buffer":7,"typeforce":53}],63:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var base58check = require('bs58check')
-var bcrypto = require('./crypto')
-var createHmac = require('create-hmac')
-var typeForce = require('typeforce')
-var networks = require('./networks')
+ var e = k
+ var h = e.multiply(THREE)
-var BigInteger = require('bigi')
-var ECKey = require('./eckey')
-var ECPubKey = require('./ecpubkey')
+ var neg = this.negate()
+ var R = this
-var ecurve = require('ecurve')
-var curve = ecurve.getCurveByName('secp256k1')
+ for (var i = h.bitLength() - 2; i > 0; --i) {
+ var hBit = h.testBit(i)
+ var eBit = e.testBit(i)
-function findBIP32NetworkByVersion (version) {
- for (var name in networks) {
- var network = networks[name]
+ R = R.twice()
- if (version === network.bip32.private || version === network.bip32.public) {
- return network
+ if (hBit !== eBit) {
+ R = R.add(hBit ? this : neg)
}
}
- assert(false, 'Could not find network for ' + version.toString(16))
+ return R
}
-function HDNode (K, chainCode, network) {
- network = network || networks.bitcoin
+// 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)
- typeForce('Buffer', chainCode)
+ while (i >= 0) {
+ var jBit = j.testBit(i)
+ var kBit = k.testBit(i)
- assert.equal(chainCode.length, 32, 'Expected chainCode length of 32, got ' + chainCode.length)
- assert(network.bip32, 'Unknown BIP32 constants for network')
+ R = R.twice()
- this.chainCode = chainCode
- this.depth = 0
- this.index = 0
- this.parentFingerprint = 0x00000000
- this.network = network
-
- if (K instanceof BigInteger) {
- this.privKey = new ECKey(K, true)
- this.pubKey = this.privKey.pub
- } else if (K instanceof ECKey) {
- assert(K.pub.compressed, 'ECKey must be compressed')
- this.privKey = K
- this.pubKey = K.pub
- } else if (K instanceof ECPubKey) {
- assert(K.compressed, 'ECPubKey must be compressed')
- this.pubKey = K
- } else {
- this.pubKey = new ECPubKey(K, true)
+ if (jBit) {
+ if (kBit) {
+ R = R.add(both)
+ } else {
+ R = R.add(this)
+ }
+ } else if (kBit) {
+ R = R.add(x)
+ }
+ --i
}
-}
-HDNode.MASTER_SECRET = new Buffer('Bitcoin seed')
-HDNode.HIGHEST_BIT = 0x80000000
-HDNode.LENGTH = 78
+ return R
+}
-HDNode.fromSeedBuffer = function (seed, network) {
- typeForce('Buffer', seed)
+Point.prototype.getEncoded = function (compressed) {
+ if (compressed == null) compressed = this.compressed
+ if (this.curve.isInfinity(this)) return new Buffer('00', 'hex') // Infinity point encoded is simply '00'
- assert(seed.length >= 16, 'Seed should be at least 128 bits')
- assert(seed.length <= 64, 'Seed should be at most 512 bits')
+ var x = this.affineX
+ var y = this.affineY
+ var byteLength = this.curve.pLength
+ var buffer
- var I = createHmac('sha512', HDNode.MASTER_SECRET).update(seed).digest()
- var IL = I.slice(0, 32)
- var IR = I.slice(32)
+ // 0x02/0x03 | X
+ if (compressed) {
+ buffer = new Buffer(1 + byteLength)
+ buffer.writeUInt8(y.isEven() ? 0x02 : 0x03, 0)
- // In case IL is 0 or >= n, the master key is invalid
- // This is handled by `new ECKey` in the HDNode constructor
- var pIL = BigInteger.fromBuffer(IL)
+ // 0x04 | X | Y
+ } else {
+ buffer = new Buffer(1 + byteLength + byteLength)
+ buffer.writeUInt8(0x04, 0)
- return new HDNode(pIL, IR, network)
-}
+ y.toBuffer(byteLength).copy(buffer, 1 + byteLength)
+ }
-HDNode.fromSeedHex = function (hex, network) {
- return HDNode.fromSeedBuffer(new Buffer(hex, 'hex'), network)
-}
+ x.toBuffer(byteLength).copy(buffer, 1)
-HDNode.fromBase58 = function (string, network) {
- return HDNode.fromBuffer(base58check.decode(string), network, true)
+ return buffer
}
-// FIXME: remove in 2.x.y
-HDNode.fromBuffer = function (buffer, network, __ignoreDeprecation) {
- if (!__ignoreDeprecation) {
- console.warn('HDNode.fromBuffer() is deprecated for removal in 2.x.y, use fromBase58 instead')
- }
-
- assert.strictEqual(buffer.length, HDNode.LENGTH, 'Invalid buffer length')
+Point.decodeFrom = function (curve, buffer) {
+ var type = buffer.readUInt8(0)
+ var compressed = (type !== 4)
- // 4 byte: version bytes
- var version = buffer.readUInt32BE(0)
+ var byteLength = Math.floor((curve.p.bitLength() + 7) / 8)
+ var x = BigInteger.fromBuffer(buffer.slice(1, 1 + byteLength))
- if (network) {
- assert(version === network.bip32.private || version === network.bip32.public, "Network doesn't match")
+ var Q
+ if (compressed) {
+ assert.equal(buffer.length, byteLength + 1, 'Invalid sequence length')
+ assert(type === 0x02 || type === 0x03, 'Invalid sequence tag')
- // auto-detect
+ var isOdd = (type === 0x03)
+ Q = curve.pointFromX(isOdd, x)
} else {
- network = findBIP32NetworkByVersion(version)
+ assert.equal(buffer.length, 1 + byteLength + byteLength, 'Invalid sequence length')
+
+ var y = BigInteger.fromBuffer(buffer.slice(1 + byteLength))
+ Q = Point.fromAffine(curve, x, y)
}
- // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ...
- var depth = buffer.readUInt8(4)
+ Q.compressed = compressed
+ return Q
+}
- // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
- var parentFingerprint = buffer.readUInt32BE(5)
- if (depth === 0) {
- assert.strictEqual(parentFingerprint, 0x00000000, 'Invalid parent fingerprint')
- }
+Point.prototype.toString = function () {
+ if (this.curve.isInfinity(this)) return '(INFINITY)'
- // 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)
- assert(depth > 0 || index === 0, 'Invalid index')
+ return '(' + this.affineX.toString() + ',' + this.affineY.toString() + ')'
+}
+
+module.exports = Point
+
+}).call(this,require("buffer").Buffer)
+},{"assert":1,"bigi":37,"buffer":4}],92:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var Transform = require('stream').Transform
+var inherits = require('inherits')
- // 32 bytes: the chain code
- var chainCode = buffer.slice(13, 45)
- var data, hd
+function HashBase (blockSize) {
+ Transform.call(this)
- // 33 bytes: private key data (0x00 + k)
- if (version === network.bip32.private) {
- assert.strictEqual(buffer.readUInt8(45), 0x00, 'Invalid private key')
- data = buffer.slice(46, 78)
- var d = BigInteger.fromBuffer(data)
- hd = new HDNode(d, chainCode, network)
+ this._block = new Buffer(blockSize)
+ this._blockSize = blockSize
+ this._blockOffset = 0
+ this._length = [0, 0, 0, 0]
- // 33 bytes: public key data (0x02 + X or 0x03 + X)
- } else {
- data = buffer.slice(45, 78)
- var Q = ecurve.Point.decodeFrom(curve, data)
- assert.equal(Q.compressed, true, 'Invalid public key')
+ this._finalized = false
+}
- // 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)
+inherits(HashBase, Transform)
- hd = new HDNode(Q, chainCode, network)
+HashBase.prototype._transform = function (chunk, encoding, callback) {
+ var error = null
+ try {
+ if (encoding !== 'buffer') chunk = new Buffer(chunk, encoding)
+ this.update(chunk)
+ } catch (err) {
+ error = err
}
- hd.depth = depth
- hd.index = index
- hd.parentFingerprint = parentFingerprint
-
- return hd
+ callback(error)
}
-// FIXME: remove in 2.x.y
-HDNode.fromHex = function (hex, network) {
- return HDNode.fromBuffer(new Buffer(hex, 'hex'), network)
-}
+HashBase.prototype._flush = function (callback) {
+ var error = null
+ try {
+ this.push(this._digest())
+ } catch (err) {
+ error = err
+ }
-HDNode.prototype.getIdentifier = function () {
- return bcrypto.hash160(this.pubKey.toBuffer())
+ callback(error)
}
-HDNode.prototype.getFingerprint = function () {
- return this.getIdentifier().slice(0, 4)
-}
+HashBase.prototype.update = function (data, encoding) {
+ if (!Buffer.isBuffer(data) && typeof data !== 'string') throw new TypeError('Data must be a string or a buffer')
+ if (this._finalized) throw new Error('Digest already called')
+ if (!Buffer.isBuffer(data)) data = new Buffer(data, encoding || 'binary')
-HDNode.prototype.getAddress = function () {
- return this.pubKey.getAddress(this.network)
-}
+ // consume data
+ var block = this._block
+ var offset = 0
+ while (this._blockOffset + data.length - offset >= this._blockSize) {
+ for (var i = this._blockOffset; i < this._blockSize;) block[i++] = data[offset++]
+ this._update()
+ this._blockOffset = 0
+ }
+ while (offset < data.length) block[this._blockOffset++] = data[offset++]
-HDNode.prototype.neutered = function () {
- var neutered = new HDNode(this.pubKey.Q, this.chainCode, this.network)
- neutered.depth = this.depth
- neutered.index = this.index
- neutered.parentFingerprint = this.parentFingerprint
+ // update length
+ for (var j = 0, carry = data.length * 8; carry > 0; ++j) {
+ this._length[j] += carry
+ carry = (this._length[j] / 0x0100000000) | 0
+ if (carry > 0) this._length[j] -= 0x0100000000 * carry
+ }
- return neutered
+ return this
}
-HDNode.prototype.toBase58 = function (isPrivate) {
- return base58check.encode(this.toBuffer(isPrivate, true))
+HashBase.prototype._update = function (data) {
+ throw new Error('_update is not implemented')
}
-// FIXME: remove in 2.x.y
-HDNode.prototype.toBuffer = function (isPrivate, __ignoreDeprecation) {
- if (isPrivate === undefined) {
- isPrivate = !!this.privKey
+HashBase.prototype.digest = function (encoding) {
+ if (this._finalized) throw new Error('Digest already called')
+ this._finalized = true
- // FIXME: remove in 2.x.y
- } else {
- console.warn('isPrivate flag is deprecated, please use the .neutered() method instead')
- }
-
- if (!__ignoreDeprecation) {
- console.warn('HDNode.toBuffer() is deprecated for removal in 2.x.y, use toBase58 instead')
- }
+ var digest = this._digest()
+ if (encoding !== undefined) digest = digest.toString(encoding)
+ return digest
+}
- // Version
- var version = isPrivate ? this.network.bip32.private : this.network.bip32.public
- var buffer = new Buffer(HDNode.LENGTH)
+HashBase.prototype._digest = function () {
+ throw new Error('_digest is not implemented')
+}
- // 4 bytes: version bytes
- buffer.writeUInt32BE(version, 0)
+module.exports = HashBase
- // Depth
- // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ....
- buffer.writeUInt8(this.depth, 4)
+}).call(this,require("buffer").Buffer)
+},{"buffer":4,"inherits":93,"stream":27}],93:[function(require,module,exports){
+arguments[4][8][0].apply(exports,arguments)
+},{"dup":8}],94:[function(require,module,exports){
+(function (Buffer){
+// constant-space merkle root calculation algorithm
+module.exports = function fastRoot (values, digestFn) {
+ if (!Array.isArray(values)) throw TypeError('Expected values Array')
+ if (typeof digestFn !== 'function') throw TypeError('Expected digest Function')
- // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
- buffer.writeUInt32BE(this.parentFingerprint, 5)
+ var length = values.length
+ var results = values.concat()
- // 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)
+ while (length > 1) {
+ var j = 0
- // 32 bytes: the chain code
- this.chainCode.copy(buffer, 13)
+ for (var i = 0; i < length; i += 2, ++j) {
+ var left = results[i]
+ var right = i + 1 === length ? left : results[i + 1]
+ var data = Buffer.concat([left, right])
- // 33 bytes: the public key or private key data
- if (isPrivate) {
- // FIXME: remove in 2.x.y
- assert(this.privKey, 'Missing private key')
+ results[j] = digestFn(data)
+ }
- // 0x00 + k for private keys
- buffer.writeUInt8(0, 45)
- this.privKey.d.toBuffer(32).copy(buffer, 46)
- } else {
- // X9.62 encoding for public keys
- this.pubKey.toBuffer().copy(buffer, 45)
+ length = j
}
- return buffer
+ return results[0]
}
-// FIXME: remove in 2.x.y
-HDNode.prototype.toHex = function (isPrivate) {
- return this.toBuffer(isPrivate).toString('hex')
+}).call(this,require("buffer").Buffer)
+},{"buffer":4}],95:[function(require,module,exports){
+var OPS = require('bitcoin-ops')
+
+function encodingLength (i) {
+ return i < OPS.OP_PUSHDATA1 ? 1
+ : i <= 0xff ? 2
+ : i <= 0xffff ? 3
+ : 5
}
-// https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#child-key-derivation-ckd-functions
-HDNode.prototype.derive = function (index) {
- var isHardened = index >= HDNode.HIGHEST_BIT
- var indexBuffer = new Buffer(4)
- indexBuffer.writeUInt32BE(index, 0)
+function encode (buffer, number, offset) {
+ var size = encodingLength(number)
- var data
+ // ~6 bit
+ if (size === 1) {
+ buffer.writeUInt8(number, offset)
- // Hardened child
- if (isHardened) {
- assert(this.privKey, 'Could not derive hardened child key')
+ // 8 bit
+ } else if (size === 2) {
+ buffer.writeUInt8(OPS.OP_PUSHDATA1, offset)
+ buffer.writeUInt8(number, offset + 1)
- // data = 0x00 || ser256(kpar) || ser32(index)
- data = Buffer.concat([
- this.privKey.d.toBuffer(33),
- indexBuffer
- ])
+ // 16 bit
+ } else if (size === 3) {
+ buffer.writeUInt8(OPS.OP_PUSHDATA2, offset)
+ buffer.writeUInt16LE(number, offset + 1)
- // Normal child
+ // 32 bit
} else {
- // data = serP(point(kpar)) || ser32(index)
- // = serP(Kpar) || ser32(index)
- data = Buffer.concat([
- this.pubKey.toBuffer(),
- indexBuffer
- ])
+ buffer.writeUInt8(OPS.OP_PUSHDATA4, offset)
+ buffer.writeUInt32LE(number, offset + 1)
}
- 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)
+ return size
+}
- // In case parse256(IL) >= n, proceed with the next value for i
- if (pIL.compareTo(curve.n) >= 0) {
- return this.derive(index + 1)
- }
+function decode (buffer, offset) {
+ var opcode = buffer.readUInt8(offset)
+ var number, size
- // Private parent key -> private child key
- var hd
- if (this.privKey) {
- // ki = parse256(IL) + kpar (mod n)
- var ki = pIL.add(this.privKey.d).mod(curve.n)
+ // ~6 bit
+ if (opcode < OPS.OP_PUSHDATA1) {
+ number = opcode
+ size = 1
- // In case ki == 0, proceed with the next value for i
- if (ki.signum() === 0) {
- return this.derive(index + 1)
- }
+ // 8 bit
+ } else if (opcode === OPS.OP_PUSHDATA1) {
+ if (offset + 2 > buffer.length) return null
+ number = buffer.readUInt8(offset + 1)
+ size = 2
- hd = new HDNode(ki, IR, this.network)
+ // 16 bit
+ } else if (opcode === OPS.OP_PUSHDATA2) {
+ if (offset + 3 > buffer.length) return null
+ number = buffer.readUInt16LE(offset + 1)
+ size = 3
- // Public parent key -> public child key
+ // 32 bit
} else {
- // Ki = point(parse256(IL)) + Kpar
- // = G*IL + Kpar
- var Ki = curve.G.multiply(pIL).add(this.pubKey.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)
- }
+ if (offset + 5 > buffer.length) return null
+ if (opcode !== OPS.OP_PUSHDATA4) throw new Error('Unexpected opcode')
- hd = new HDNode(Ki, IR, this.network)
+ number = buffer.readUInt32LE(offset + 1)
+ size = 5
}
- hd.depth = this.depth + 1
- hd.index = index
- hd.parentFingerprint = this.getFingerprint().readUInt32BE(0)
-
- return hd
+ return {
+ opcode: opcode,
+ number: number,
+ size: size
+ }
}
-HDNode.prototype.deriveHardened = function (index) {
- // Only derives hardened private keys by default
- return this.derive(index + HDNode.HIGHEST_BIT)
+module.exports = {
+ encodingLength: encodingLength,
+ encode: encode,
+ decode: decode
}
-HDNode.prototype.toString = HDNode.prototype.toBase58
+},{"bitcoin-ops":40}],96:[function(require,module,exports){
+(function (process,global){
+'use strict'
-module.exports = HDNode
+function oldBrowser () {
+ throw new Error('secure random number generation not supported by this browser\nuse chrome, FireFox or Internet Explorer 11')
+}
-}).call(this,require("buffer").Buffer)
-},{"./crypto":58,"./eckey":60,"./ecpubkey":61,"./networks":66,"assert":5,"bigi":3,"bs58check":31,"buffer":7,"create-hmac":45,"ecurve":49,"typeforce":53}],64:[function(require,module,exports){
-module.exports = {
- Address: require('./address'),
- base58check: require('./base58check'),
- Block: require('./block'),
- bufferutils: require('./bufferutils'),
- crypto: require('./crypto'),
- ecdsa: require('./ecdsa'),
- ECKey: require('./eckey'),
- ECPubKey: require('./ecpubkey'),
- ECSignature: require('./ecsignature'),
- Message: require('./message'),
- opcodes: require('./opcodes'),
- HDNode: require('./hdnode'),
- Script: require('./script'),
- scripts: require('./scripts'),
- Transaction: require('./transaction'),
- TransactionBuilder: require('./transaction_builder'),
- networks: require('./networks'),
- Wallet: require('./wallet')
+var Buffer = require('safe-buffer').Buffer
+var crypto = global.crypto || global.msCrypto
+
+if (crypto && crypto.getRandomValues) {
+ module.exports = randomBytes
+} else {
+ module.exports = oldBrowser
}
-},{"./address":54,"./base58check":55,"./block":56,"./bufferutils":57,"./crypto":58,"./ecdsa":59,"./eckey":60,"./ecpubkey":61,"./ecsignature":62,"./hdnode":63,"./message":65,"./networks":66,"./opcodes":67,"./script":68,"./scripts":69,"./transaction":70,"./transaction_builder":71,"./wallet":72}],65:[function(require,module,exports){
-(function (Buffer){
-var bufferutils = require('./bufferutils')
-var crypto = require('./crypto')
-var ecdsa = require('./ecdsa')
-var networks = require('./networks')
+function randomBytes (size, cb) {
+ // phantomjs needs to throw
+ if (size > 65536) throw new Error('requested too many random bytes')
+ // in case browserify isn't using the Uint8Array version
+ var rawBytes = new global.Uint8Array(size)
-var BigInteger = require('bigi')
-var ECPubKey = require('./ecpubkey')
-var ECSignature = require('./ecsignature')
+ // This will not work in older browsers.
+ // See https://developer.mozilla.org/en-US/docs/Web/API/window.crypto.getRandomValues
+ if (size > 0) { // getRandomValues fails on IE if size == 0
+ crypto.getRandomValues(rawBytes)
+ }
-var ecurve = require('ecurve')
-var ecparams = ecurve.getCurveByName('secp256k1')
+ // XXX: phantomjs doesn't like a buffer being passed here
+ var bytes = Buffer.from(rawBytes.buffer)
-function magicHash (message, network) {
- var magicPrefix = new Buffer(network.magicPrefix)
- var messageBuffer = new Buffer(message)
- var lengthBuffer = bufferutils.varIntBuffer(messageBuffer.length)
+ if (typeof cb === 'function') {
+ return process.nextTick(function () {
+ cb(null, bytes)
+ })
+ }
- var buffer = Buffer.concat([magicPrefix, lengthBuffer, messageBuffer])
- return crypto.hash256(buffer)
+ return bytes
}
-function sign (privKey, message, network) {
- network = network || networks.bitcoin
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"_process":12,"safe-buffer":98}],97:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var inherits = require('inherits')
+var HashBase = require('hash-base')
- var hash = magicHash(message, network)
- var signature = privKey.sign(hash)
- var e = BigInteger.fromBuffer(hash)
- var i = ecdsa.calcPubKeyRecoveryParam(ecparams, e, signature, privKey.pub.Q)
+function RIPEMD160 () {
+ HashBase.call(this, 64)
- return signature.toCompact(i, privKey.pub.compressed)
+ // state
+ this._a = 0x67452301
+ this._b = 0xefcdab89
+ this._c = 0x98badcfe
+ this._d = 0x10325476
+ this._e = 0xc3d2e1f0
}
-// TODO: network could be implied from address
-function verify (address, signature, message, network) {
- if (!Buffer.isBuffer(signature)) {
- signature = new Buffer(signature, 'base64')
- }
-
- network = network || networks.bitcoin
-
- var hash = magicHash(message, network)
- var parsed = ECSignature.parseCompact(signature)
- var e = BigInteger.fromBuffer(hash)
- var Q = ecdsa.recoverPubKey(ecparams, e, parsed.signature, parsed.i)
+inherits(RIPEMD160, HashBase)
+
+RIPEMD160.prototype._update = function () {
+ var m = new Array(16)
+ for (var i = 0; i < 16; ++i) m[i] = this._block.readInt32LE(i * 4)
+
+ var al = this._a
+ var bl = this._b
+ var cl = this._c
+ var dl = this._d
+ var el = this._e
+
+ // Mj = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
+ // K = 0x00000000
+ // Sj = 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8
+ al = fn1(al, bl, cl, dl, el, m[0], 0x00000000, 11); cl = rotl(cl, 10)
+ el = fn1(el, al, bl, cl, dl, m[1], 0x00000000, 14); bl = rotl(bl, 10)
+ dl = fn1(dl, el, al, bl, cl, m[2], 0x00000000, 15); al = rotl(al, 10)
+ cl = fn1(cl, dl, el, al, bl, m[3], 0x00000000, 12); el = rotl(el, 10)
+ bl = fn1(bl, cl, dl, el, al, m[4], 0x00000000, 5); dl = rotl(dl, 10)
+ al = fn1(al, bl, cl, dl, el, m[5], 0x00000000, 8); cl = rotl(cl, 10)
+ el = fn1(el, al, bl, cl, dl, m[6], 0x00000000, 7); bl = rotl(bl, 10)
+ dl = fn1(dl, el, al, bl, cl, m[7], 0x00000000, 9); al = rotl(al, 10)
+ cl = fn1(cl, dl, el, al, bl, m[8], 0x00000000, 11); el = rotl(el, 10)
+ bl = fn1(bl, cl, dl, el, al, m[9], 0x00000000, 13); dl = rotl(dl, 10)
+ al = fn1(al, bl, cl, dl, el, m[10], 0x00000000, 14); cl = rotl(cl, 10)
+ el = fn1(el, al, bl, cl, dl, m[11], 0x00000000, 15); bl = rotl(bl, 10)
+ dl = fn1(dl, el, al, bl, cl, m[12], 0x00000000, 6); al = rotl(al, 10)
+ cl = fn1(cl, dl, el, al, bl, m[13], 0x00000000, 7); el = rotl(el, 10)
+ bl = fn1(bl, cl, dl, el, al, m[14], 0x00000000, 9); dl = rotl(dl, 10)
+ al = fn1(al, bl, cl, dl, el, m[15], 0x00000000, 8); cl = rotl(cl, 10)
+
+ // Mj = 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8
+ // K = 0x5a827999
+ // Sj = 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12
+ el = fn2(el, al, bl, cl, dl, m[7], 0x5a827999, 7); bl = rotl(bl, 10)
+ dl = fn2(dl, el, al, bl, cl, m[4], 0x5a827999, 6); al = rotl(al, 10)
+ cl = fn2(cl, dl, el, al, bl, m[13], 0x5a827999, 8); el = rotl(el, 10)
+ bl = fn2(bl, cl, dl, el, al, m[1], 0x5a827999, 13); dl = rotl(dl, 10)
+ al = fn2(al, bl, cl, dl, el, m[10], 0x5a827999, 11); cl = rotl(cl, 10)
+ el = fn2(el, al, bl, cl, dl, m[6], 0x5a827999, 9); bl = rotl(bl, 10)
+ dl = fn2(dl, el, al, bl, cl, m[15], 0x5a827999, 7); al = rotl(al, 10)
+ cl = fn2(cl, dl, el, al, bl, m[3], 0x5a827999, 15); el = rotl(el, 10)
+ bl = fn2(bl, cl, dl, el, al, m[12], 0x5a827999, 7); dl = rotl(dl, 10)
+ al = fn2(al, bl, cl, dl, el, m[0], 0x5a827999, 12); cl = rotl(cl, 10)
+ el = fn2(el, al, bl, cl, dl, m[9], 0x5a827999, 15); bl = rotl(bl, 10)
+ dl = fn2(dl, el, al, bl, cl, m[5], 0x5a827999, 9); al = rotl(al, 10)
+ cl = fn2(cl, dl, el, al, bl, m[2], 0x5a827999, 11); el = rotl(el, 10)
+ bl = fn2(bl, cl, dl, el, al, m[14], 0x5a827999, 7); dl = rotl(dl, 10)
+ al = fn2(al, bl, cl, dl, el, m[11], 0x5a827999, 13); cl = rotl(cl, 10)
+ el = fn2(el, al, bl, cl, dl, m[8], 0x5a827999, 12); bl = rotl(bl, 10)
+
+ // Mj = 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12
+ // K = 0x6ed9eba1
+ // Sj = 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5
+ dl = fn3(dl, el, al, bl, cl, m[3], 0x6ed9eba1, 11); al = rotl(al, 10)
+ cl = fn3(cl, dl, el, al, bl, m[10], 0x6ed9eba1, 13); el = rotl(el, 10)
+ bl = fn3(bl, cl, dl, el, al, m[14], 0x6ed9eba1, 6); dl = rotl(dl, 10)
+ al = fn3(al, bl, cl, dl, el, m[4], 0x6ed9eba1, 7); cl = rotl(cl, 10)
+ el = fn3(el, al, bl, cl, dl, m[9], 0x6ed9eba1, 14); bl = rotl(bl, 10)
+ dl = fn3(dl, el, al, bl, cl, m[15], 0x6ed9eba1, 9); al = rotl(al, 10)
+ cl = fn3(cl, dl, el, al, bl, m[8], 0x6ed9eba1, 13); el = rotl(el, 10)
+ bl = fn3(bl, cl, dl, el, al, m[1], 0x6ed9eba1, 15); dl = rotl(dl, 10)
+ al = fn3(al, bl, cl, dl, el, m[2], 0x6ed9eba1, 14); cl = rotl(cl, 10)
+ el = fn3(el, al, bl, cl, dl, m[7], 0x6ed9eba1, 8); bl = rotl(bl, 10)
+ dl = fn3(dl, el, al, bl, cl, m[0], 0x6ed9eba1, 13); al = rotl(al, 10)
+ cl = fn3(cl, dl, el, al, bl, m[6], 0x6ed9eba1, 6); el = rotl(el, 10)
+ bl = fn3(bl, cl, dl, el, al, m[13], 0x6ed9eba1, 5); dl = rotl(dl, 10)
+ al = fn3(al, bl, cl, dl, el, m[11], 0x6ed9eba1, 12); cl = rotl(cl, 10)
+ el = fn3(el, al, bl, cl, dl, m[5], 0x6ed9eba1, 7); bl = rotl(bl, 10)
+ dl = fn3(dl, el, al, bl, cl, m[12], 0x6ed9eba1, 5); al = rotl(al, 10)
+
+ // Mj = 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2
+ // K = 0x8f1bbcdc
+ // Sj = 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12
+ cl = fn4(cl, dl, el, al, bl, m[1], 0x8f1bbcdc, 11); el = rotl(el, 10)
+ bl = fn4(bl, cl, dl, el, al, m[9], 0x8f1bbcdc, 12); dl = rotl(dl, 10)
+ al = fn4(al, bl, cl, dl, el, m[11], 0x8f1bbcdc, 14); cl = rotl(cl, 10)
+ el = fn4(el, al, bl, cl, dl, m[10], 0x8f1bbcdc, 15); bl = rotl(bl, 10)
+ dl = fn4(dl, el, al, bl, cl, m[0], 0x8f1bbcdc, 14); al = rotl(al, 10)
+ cl = fn4(cl, dl, el, al, bl, m[8], 0x8f1bbcdc, 15); el = rotl(el, 10)
+ bl = fn4(bl, cl, dl, el, al, m[12], 0x8f1bbcdc, 9); dl = rotl(dl, 10)
+ al = fn4(al, bl, cl, dl, el, m[4], 0x8f1bbcdc, 8); cl = rotl(cl, 10)
+ el = fn4(el, al, bl, cl, dl, m[13], 0x8f1bbcdc, 9); bl = rotl(bl, 10)
+ dl = fn4(dl, el, al, bl, cl, m[3], 0x8f1bbcdc, 14); al = rotl(al, 10)
+ cl = fn4(cl, dl, el, al, bl, m[7], 0x8f1bbcdc, 5); el = rotl(el, 10)
+ bl = fn4(bl, cl, dl, el, al, m[15], 0x8f1bbcdc, 6); dl = rotl(dl, 10)
+ al = fn4(al, bl, cl, dl, el, m[14], 0x8f1bbcdc, 8); cl = rotl(cl, 10)
+ el = fn4(el, al, bl, cl, dl, m[5], 0x8f1bbcdc, 6); bl = rotl(bl, 10)
+ dl = fn4(dl, el, al, bl, cl, m[6], 0x8f1bbcdc, 5); al = rotl(al, 10)
+ cl = fn4(cl, dl, el, al, bl, m[2], 0x8f1bbcdc, 12); el = rotl(el, 10)
+
+ // Mj = 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
+ // K = 0xa953fd4e
+ // Sj = 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
+ bl = fn5(bl, cl, dl, el, al, m[4], 0xa953fd4e, 9); dl = rotl(dl, 10)
+ al = fn5(al, bl, cl, dl, el, m[0], 0xa953fd4e, 15); cl = rotl(cl, 10)
+ el = fn5(el, al, bl, cl, dl, m[5], 0xa953fd4e, 5); bl = rotl(bl, 10)
+ dl = fn5(dl, el, al, bl, cl, m[9], 0xa953fd4e, 11); al = rotl(al, 10)
+ cl = fn5(cl, dl, el, al, bl, m[7], 0xa953fd4e, 6); el = rotl(el, 10)
+ bl = fn5(bl, cl, dl, el, al, m[12], 0xa953fd4e, 8); dl = rotl(dl, 10)
+ al = fn5(al, bl, cl, dl, el, m[2], 0xa953fd4e, 13); cl = rotl(cl, 10)
+ el = fn5(el, al, bl, cl, dl, m[10], 0xa953fd4e, 12); bl = rotl(bl, 10)
+ dl = fn5(dl, el, al, bl, cl, m[14], 0xa953fd4e, 5); al = rotl(al, 10)
+ cl = fn5(cl, dl, el, al, bl, m[1], 0xa953fd4e, 12); el = rotl(el, 10)
+ bl = fn5(bl, cl, dl, el, al, m[3], 0xa953fd4e, 13); dl = rotl(dl, 10)
+ al = fn5(al, bl, cl, dl, el, m[8], 0xa953fd4e, 14); cl = rotl(cl, 10)
+ el = fn5(el, al, bl, cl, dl, m[11], 0xa953fd4e, 11); bl = rotl(bl, 10)
+ dl = fn5(dl, el, al, bl, cl, m[6], 0xa953fd4e, 8); al = rotl(al, 10)
+ cl = fn5(cl, dl, el, al, bl, m[15], 0xa953fd4e, 5); el = rotl(el, 10)
+ bl = fn5(bl, cl, dl, el, al, m[13], 0xa953fd4e, 6); dl = rotl(dl, 10)
+
+ var ar = this._a
+ var br = this._b
+ var cr = this._c
+ var dr = this._d
+ var er = this._e
+
+ // M'j = 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12
+ // K' = 0x50a28be6
+ // S'j = 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6
+ ar = fn5(ar, br, cr, dr, er, m[5], 0x50a28be6, 8); cr = rotl(cr, 10)
+ er = fn5(er, ar, br, cr, dr, m[14], 0x50a28be6, 9); br = rotl(br, 10)
+ dr = fn5(dr, er, ar, br, cr, m[7], 0x50a28be6, 9); ar = rotl(ar, 10)
+ cr = fn5(cr, dr, er, ar, br, m[0], 0x50a28be6, 11); er = rotl(er, 10)
+ br = fn5(br, cr, dr, er, ar, m[9], 0x50a28be6, 13); dr = rotl(dr, 10)
+ ar = fn5(ar, br, cr, dr, er, m[2], 0x50a28be6, 15); cr = rotl(cr, 10)
+ er = fn5(er, ar, br, cr, dr, m[11], 0x50a28be6, 15); br = rotl(br, 10)
+ dr = fn5(dr, er, ar, br, cr, m[4], 0x50a28be6, 5); ar = rotl(ar, 10)
+ cr = fn5(cr, dr, er, ar, br, m[13], 0x50a28be6, 7); er = rotl(er, 10)
+ br = fn5(br, cr, dr, er, ar, m[6], 0x50a28be6, 7); dr = rotl(dr, 10)
+ ar = fn5(ar, br, cr, dr, er, m[15], 0x50a28be6, 8); cr = rotl(cr, 10)
+ er = fn5(er, ar, br, cr, dr, m[8], 0x50a28be6, 11); br = rotl(br, 10)
+ dr = fn5(dr, er, ar, br, cr, m[1], 0x50a28be6, 14); ar = rotl(ar, 10)
+ cr = fn5(cr, dr, er, ar, br, m[10], 0x50a28be6, 14); er = rotl(er, 10)
+ br = fn5(br, cr, dr, er, ar, m[3], 0x50a28be6, 12); dr = rotl(dr, 10)
+ ar = fn5(ar, br, cr, dr, er, m[12], 0x50a28be6, 6); cr = rotl(cr, 10)
+
+ // M'j = 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2
+ // K' = 0x5c4dd124
+ // S'j = 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11
+ er = fn4(er, ar, br, cr, dr, m[6], 0x5c4dd124, 9); br = rotl(br, 10)
+ dr = fn4(dr, er, ar, br, cr, m[11], 0x5c4dd124, 13); ar = rotl(ar, 10)
+ cr = fn4(cr, dr, er, ar, br, m[3], 0x5c4dd124, 15); er = rotl(er, 10)
+ br = fn4(br, cr, dr, er, ar, m[7], 0x5c4dd124, 7); dr = rotl(dr, 10)
+ ar = fn4(ar, br, cr, dr, er, m[0], 0x5c4dd124, 12); cr = rotl(cr, 10)
+ er = fn4(er, ar, br, cr, dr, m[13], 0x5c4dd124, 8); br = rotl(br, 10)
+ dr = fn4(dr, er, ar, br, cr, m[5], 0x5c4dd124, 9); ar = rotl(ar, 10)
+ cr = fn4(cr, dr, er, ar, br, m[10], 0x5c4dd124, 11); er = rotl(er, 10)
+ br = fn4(br, cr, dr, er, ar, m[14], 0x5c4dd124, 7); dr = rotl(dr, 10)
+ ar = fn4(ar, br, cr, dr, er, m[15], 0x5c4dd124, 7); cr = rotl(cr, 10)
+ er = fn4(er, ar, br, cr, dr, m[8], 0x5c4dd124, 12); br = rotl(br, 10)
+ dr = fn4(dr, er, ar, br, cr, m[12], 0x5c4dd124, 7); ar = rotl(ar, 10)
+ cr = fn4(cr, dr, er, ar, br, m[4], 0x5c4dd124, 6); er = rotl(er, 10)
+ br = fn4(br, cr, dr, er, ar, m[9], 0x5c4dd124, 15); dr = rotl(dr, 10)
+ ar = fn4(ar, br, cr, dr, er, m[1], 0x5c4dd124, 13); cr = rotl(cr, 10)
+ er = fn4(er, ar, br, cr, dr, m[2], 0x5c4dd124, 11); br = rotl(br, 10)
+
+ // M'j = 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13
+ // K' = 0x6d703ef3
+ // S'j = 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5
+ dr = fn3(dr, er, ar, br, cr, m[15], 0x6d703ef3, 9); ar = rotl(ar, 10)
+ cr = fn3(cr, dr, er, ar, br, m[5], 0x6d703ef3, 7); er = rotl(er, 10)
+ br = fn3(br, cr, dr, er, ar, m[1], 0x6d703ef3, 15); dr = rotl(dr, 10)
+ ar = fn3(ar, br, cr, dr, er, m[3], 0x6d703ef3, 11); cr = rotl(cr, 10)
+ er = fn3(er, ar, br, cr, dr, m[7], 0x6d703ef3, 8); br = rotl(br, 10)
+ dr = fn3(dr, er, ar, br, cr, m[14], 0x6d703ef3, 6); ar = rotl(ar, 10)
+ cr = fn3(cr, dr, er, ar, br, m[6], 0x6d703ef3, 6); er = rotl(er, 10)
+ br = fn3(br, cr, dr, er, ar, m[9], 0x6d703ef3, 14); dr = rotl(dr, 10)
+ ar = fn3(ar, br, cr, dr, er, m[11], 0x6d703ef3, 12); cr = rotl(cr, 10)
+ er = fn3(er, ar, br, cr, dr, m[8], 0x6d703ef3, 13); br = rotl(br, 10)
+ dr = fn3(dr, er, ar, br, cr, m[12], 0x6d703ef3, 5); ar = rotl(ar, 10)
+ cr = fn3(cr, dr, er, ar, br, m[2], 0x6d703ef3, 14); er = rotl(er, 10)
+ br = fn3(br, cr, dr, er, ar, m[10], 0x6d703ef3, 13); dr = rotl(dr, 10)
+ ar = fn3(ar, br, cr, dr, er, m[0], 0x6d703ef3, 13); cr = rotl(cr, 10)
+ er = fn3(er, ar, br, cr, dr, m[4], 0x6d703ef3, 7); br = rotl(br, 10)
+ dr = fn3(dr, er, ar, br, cr, m[13], 0x6d703ef3, 5); ar = rotl(ar, 10)
+
+ // M'j = 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14
+ // K' = 0x7a6d76e9
+ // S'j = 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8
+ cr = fn2(cr, dr, er, ar, br, m[8], 0x7a6d76e9, 15); er = rotl(er, 10)
+ br = fn2(br, cr, dr, er, ar, m[6], 0x7a6d76e9, 5); dr = rotl(dr, 10)
+ ar = fn2(ar, br, cr, dr, er, m[4], 0x7a6d76e9, 8); cr = rotl(cr, 10)
+ er = fn2(er, ar, br, cr, dr, m[1], 0x7a6d76e9, 11); br = rotl(br, 10)
+ dr = fn2(dr, er, ar, br, cr, m[3], 0x7a6d76e9, 14); ar = rotl(ar, 10)
+ cr = fn2(cr, dr, er, ar, br, m[11], 0x7a6d76e9, 14); er = rotl(er, 10)
+ br = fn2(br, cr, dr, er, ar, m[15], 0x7a6d76e9, 6); dr = rotl(dr, 10)
+ ar = fn2(ar, br, cr, dr, er, m[0], 0x7a6d76e9, 14); cr = rotl(cr, 10)
+ er = fn2(er, ar, br, cr, dr, m[5], 0x7a6d76e9, 6); br = rotl(br, 10)
+ dr = fn2(dr, er, ar, br, cr, m[12], 0x7a6d76e9, 9); ar = rotl(ar, 10)
+ cr = fn2(cr, dr, er, ar, br, m[2], 0x7a6d76e9, 12); er = rotl(er, 10)
+ br = fn2(br, cr, dr, er, ar, m[13], 0x7a6d76e9, 9); dr = rotl(dr, 10)
+ ar = fn2(ar, br, cr, dr, er, m[9], 0x7a6d76e9, 12); cr = rotl(cr, 10)
+ er = fn2(er, ar, br, cr, dr, m[7], 0x7a6d76e9, 5); br = rotl(br, 10)
+ dr = fn2(dr, er, ar, br, cr, m[10], 0x7a6d76e9, 15); ar = rotl(ar, 10)
+ cr = fn2(cr, dr, er, ar, br, m[14], 0x7a6d76e9, 8); er = rotl(er, 10)
+
+ // M'j = 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
+ // K' = 0x00000000
+ // S'j = 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
+ br = fn1(br, cr, dr, er, ar, m[12], 0x00000000, 8); dr = rotl(dr, 10)
+ ar = fn1(ar, br, cr, dr, er, m[15], 0x00000000, 5); cr = rotl(cr, 10)
+ er = fn1(er, ar, br, cr, dr, m[10], 0x00000000, 12); br = rotl(br, 10)
+ dr = fn1(dr, er, ar, br, cr, m[4], 0x00000000, 9); ar = rotl(ar, 10)
+ cr = fn1(cr, dr, er, ar, br, m[1], 0x00000000, 12); er = rotl(er, 10)
+ br = fn1(br, cr, dr, er, ar, m[5], 0x00000000, 5); dr = rotl(dr, 10)
+ ar = fn1(ar, br, cr, dr, er, m[8], 0x00000000, 14); cr = rotl(cr, 10)
+ er = fn1(er, ar, br, cr, dr, m[7], 0x00000000, 6); br = rotl(br, 10)
+ dr = fn1(dr, er, ar, br, cr, m[6], 0x00000000, 8); ar = rotl(ar, 10)
+ cr = fn1(cr, dr, er, ar, br, m[2], 0x00000000, 13); er = rotl(er, 10)
+ br = fn1(br, cr, dr, er, ar, m[13], 0x00000000, 6); dr = rotl(dr, 10)
+ ar = fn1(ar, br, cr, dr, er, m[14], 0x00000000, 5); cr = rotl(cr, 10)
+ er = fn1(er, ar, br, cr, dr, m[0], 0x00000000, 15); br = rotl(br, 10)
+ dr = fn1(dr, er, ar, br, cr, m[3], 0x00000000, 13); ar = rotl(ar, 10)
+ cr = fn1(cr, dr, er, ar, br, m[9], 0x00000000, 11); er = rotl(er, 10)
+ br = fn1(br, cr, dr, er, ar, m[11], 0x00000000, 11); dr = rotl(dr, 10)
+
+ // change state
+ var t = (this._b + cl + dr) | 0
+ this._b = (this._c + dl + er) | 0
+ this._c = (this._d + el + ar) | 0
+ this._d = (this._e + al + br) | 0
+ this._e = (this._a + bl + cr) | 0
+ this._a = t
+}
+
+RIPEMD160.prototype._digest = function () {
+ // create padding and handle blocks
+ this._block[this._blockOffset++] = 0x80
+ if (this._blockOffset > 56) {
+ this._block.fill(0, this._blockOffset, 64)
+ this._update()
+ this._blockOffset = 0
+ }
+
+ this._block.fill(0, this._blockOffset, 56)
+ this._block.writeUInt32LE(this._length[0], 56)
+ this._block.writeUInt32LE(this._length[1], 60)
+ this._update()
+
+ // produce result
+ var buffer = new Buffer(20)
+ buffer.writeInt32LE(this._a, 0)
+ buffer.writeInt32LE(this._b, 4)
+ buffer.writeInt32LE(this._c, 8)
+ buffer.writeInt32LE(this._d, 12)
+ buffer.writeInt32LE(this._e, 16)
+ return buffer
+}
- var pubKey = new ECPubKey(Q, parsed.compressed)
- return pubKey.getAddress(network).toString() === address.toString()
+function rotl (x, n) {
+ return (x << n) | (x >>> (32 - n))
}
-module.exports = {
- magicHash: magicHash,
- sign: sign,
- verify: verify
+function fn1 (a, b, c, d, e, m, k, s) {
+ return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + e) | 0
}
-}).call(this,require("buffer").Buffer)
-},{"./bufferutils":57,"./crypto":58,"./ecdsa":59,"./ecpubkey":61,"./ecsignature":62,"./networks":66,"bigi":3,"buffer":7,"ecurve":49}],66:[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
+function fn2 (a, b, c, d, e, m, k, s) {
+ return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + e) | 0
+}
-var networks = {
- bitcoin: {
- magicPrefix: '\x18Bitcoin Signed Message:\n',
- bip32: {
- public: 0x0488b21e,
- private: 0x0488ade4
- },
- pubKeyHash: 0x00,
- scriptHash: 0x05,
- wif: 0x80,
- dustThreshold: 546, // https://github.com/bitcoin/bitcoin/blob/v0.9.2/src/core.h#L151-L162
- feePerKb: 10000, // https://github.com/bitcoin/bitcoin/blob/v0.9.2/src/main.cpp#L53
- estimateFee: estimateFee('bitcoin')
- },
- testnet: {
- magicPrefix: '\x18Bitcoin Signed Message:\n',
- bip32: {
- public: 0x043587cf,
- private: 0x04358394
- },
- pubKeyHash: 0x6f,
- scriptHash: 0xc4,
- wif: 0xef,
- dustThreshold: 546,
- feePerKb: 10000,
- estimateFee: estimateFee('testnet')
- },
- litecoin: {
- magicPrefix: '\x19Litecoin Signed Message:\n',
- bip32: {
- public: 0x019da462,
- private: 0x019d9cfe
- },
- pubKeyHash: 0x30,
- scriptHash: 0x05,
- wif: 0xb0,
- dustThreshold: 0, // https://github.com/litecoin-project/litecoin/blob/v0.8.7.2/src/main.cpp#L360-L365
- dustSoftThreshold: 100000, // https://github.com/litecoin-project/litecoin/blob/v0.8.7.2/src/main.h#L53
- feePerKb: 100000, // https://github.com/litecoin-project/litecoin/blob/v0.8.7.2/src/main.cpp#L56
- estimateFee: estimateFee('litecoin')
- },
- dogecoin: {
- magicPrefix: '\x19Dogecoin Signed Message:\n',
- bip32: {
- public: 0x02facafd,
- private: 0x02fac398
- },
- pubKeyHash: 0x1e,
- scriptHash: 0x16,
- wif: 0x9e,
- dustThreshold: 0, // https://github.com/dogecoin/dogecoin/blob/v1.7.1/src/core.h#L155-L160
- dustSoftThreshold: 100000000, // https://github.com/dogecoin/dogecoin/blob/v1.7.1/src/main.h#L62
- feePerKb: 100000000, // https://github.com/dogecoin/dogecoin/blob/v1.7.1/src/main.cpp#L58
- estimateFee: estimateFee('dogecoin')
- },
- viacoin: {
- magicPrefix: '\x18Viacoin Signed Message:\n',
- bip32: {
- public: 0x0488b21e,
- private: 0x0488ade4
- },
- pubKeyHash: 0x47,
- scriptHash: 0x21,
- wif: 0xc7,
- dustThreshold: 560,
- dustSoftThreshold: 100000,
- feePerKb: 100000, //
- estimateFee: estimateFee('viacoin')
- },
- viacointestnet: {
- magicPrefix: '\x18Viacoin Signed Message:\n',
- bip32: {
- public: 0x043587cf,
- private: 0x04358394
- },
- pubKeyHash: 0x7f,
- scriptHash: 0xc4,
- wif: 0xff,
- dustThreshold: 560,
- dustSoftThreshold: 100000,
- feePerKb: 100000,
- estimateFee: estimateFee('viacointestnet')
- },
- gamerscoin: {
- magicPrefix: '\x19Gamerscoin Signed Message:\n',
- bip32: {
- public: 0x019da462,
- private: 0x019d9cfe
- },
- pubKeyHash: 0x26,
- scriptHash: 0x05,
- wif: 0xA6,
- dustThreshold: 0, // https://github.com/gamers-coin/gamers-coinv3/blob/master/src/main.cpp#L358-L363
- dustSoftThreshold: 100000, // https://github.com/gamers-coin/gamers-coinv3/blob/master/src/main.cpp#L51
- feePerKb: 100000, // https://github.com/gamers-coin/gamers-coinv3/blob/master/src/main.cpp#L54
- estimateFee: estimateFee('gamerscoin')
- },
- jumbucks: {
- magicPrefix: '\x19Jumbucks Signed Message:\n',
- bip32: {
- public: 0x037a689a,
- private: 0x037a6460
- },
- pubKeyHash: 0x2b,
- scriptHash: 0x05,
- wif: 0xab,
- dustThreshold: 0,
- dustSoftThreshold: 10000,
- feePerKb: 10000,
- estimateFee: estimateFee('jumbucks')
- },
- zetacoin: {
- magicPrefix: '\x18Zetacoin Signed Message:\n',
- bip32: {
- public: 0x0488b21e,
- private: 0x0488ade4
- },
- pubKeyHash: 0x50,
- scriptHash: 0x09,
- wif: 0xe0,
- dustThreshold: 546, // https://github.com/zetacoin/zetacoin/blob/master/src/core.h#L159
- feePerKb: 10000, // https://github.com/zetacoin/zetacoin/blob/master/src/main.cpp#L54
- estimateFee: estimateFee('zetacoin')
- }
+function fn3 (a, b, c, d, e, m, k, s) {
+ return (rotl((a + ((b | (~c)) ^ d) + m + k) | 0, s) + e) | 0
}
-function estimateFee (type) {
- return function (tx) {
- var network = networks[type]
- var baseFee = network.feePerKb
- var byteSize = tx.toBuffer().length
+function fn4 (a, b, c, d, e, m, k, s) {
+ return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + e) | 0
+}
- var fee = baseFee * Math.ceil(byteSize / 1000)
- if (network.dustSoftThreshold === undefined) return fee
+function fn5 (a, b, c, d, e, m, k, s) {
+ return (rotl((a + (b ^ (c | (~d))) + m + k) | 0, s) + e) | 0
+}
- tx.outs.forEach(function (e) {
- if (e.value < network.dustSoftThreshold) {
- fee += baseFee
- }
- })
+module.exports = RIPEMD160
- return fee
- }
+}).call(this,require("buffer").Buffer)
+},{"buffer":4,"hash-base":92,"inherits":93}],98:[function(require,module,exports){
+arguments[4][26][0].apply(exports,arguments)
+},{"buffer":4,"dup":26}],99:[function(require,module,exports){
+(function (Buffer){
+// prototype class for hash functions
+function Hash (blockSize, finalSize) {
+ this._block = new Buffer(blockSize)
+ this._finalSize = finalSize
+ this._blockSize = blockSize
+ this._len = 0
+ this._s = 0
}
-module.exports = networks
+Hash.prototype.update = function (data, enc) {
+ if (typeof data === 'string') {
+ enc = enc || 'utf8'
+ data = new Buffer(data, enc)
+ }
-},{}],67:[function(require,module,exports){
-module.exports = {
- // push value
- OP_FALSE: 0,
- OP_0: 0,
- OP_PUSHDATA1: 76,
- OP_PUSHDATA2: 77,
- OP_PUSHDATA4: 78,
- OP_1NEGATE: 79,
- OP_RESERVED: 80,
- OP_1: 81,
- OP_TRUE: 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,
-
- // 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
-}
-
-},{}],68:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var bufferutils = require('./bufferutils')
-var crypto = require('./crypto')
-var typeForce = require('typeforce')
-var opcodes = require('./opcodes')
+ var l = this._len += data.length
+ var s = this._s || 0
+ var f = 0
+ var buffer = this._block
-function Script (buffer, chunks) {
- typeForce('Buffer', buffer)
- typeForce('Array', chunks)
+ while (s < l) {
+ var t = Math.min(data.length, f + this._blockSize - (s % this._blockSize))
+ var ch = (t - f)
- this.buffer = buffer
- this.chunks = chunks
-}
+ for (var i = 0; i < ch; i++) {
+ buffer[(s % this._blockSize) + i] = data[i + f]
+ }
-Script.fromASM = function (asm) {
- var strChunks = asm.split(' ')
- var chunks = strChunks.map(function (strChunk) {
- // opcode
- if (strChunk in opcodes) {
- return opcodes[strChunk]
+ s += ch
+ f += ch
- // data chunk
- } else {
- return new Buffer(strChunk, 'hex')
+ if ((s % this._blockSize) === 0) {
+ this._update(buffer)
}
- })
+ }
+ this._s = s
- return Script.fromChunks(chunks)
+ return this
}
-Script.fromBuffer = function (buffer) {
- var chunks = []
- var i = 0
+Hash.prototype.digest = function (enc) {
+ // Suppose the length of the message M, in bits, is l
+ var l = this._len * 8
- while (i < buffer.length) {
- var opcode = buffer.readUInt8(i)
+ // Append the bit 1 to the end of the message
+ this._block[this._len % this._blockSize] = 0x80
- // data chunk
- if ((opcode > opcodes.OP_0) && (opcode <= opcodes.OP_PUSHDATA4)) {
- var d = bufferutils.readPushDataInt(buffer, i)
+ // and then k zero bits, where k is the smallest non-negative solution to the equation (l + 1 + k) === finalSize mod blockSize
+ this._block.fill(0, this._len % this._blockSize + 1)
- // did reading a pushDataInt fail? return non-chunked script
- if (d === null) return new Script(buffer, [])
- i += d.size
+ if (l % (this._blockSize * 8) >= this._finalSize * 8) {
+ this._update(this._block)
+ this._block.fill(0)
+ }
- // attempt to read too much data?
- if (i + d.number > buffer.length) return new Script(buffer, [])
+ // to this append the block which is equal to the number l written in binary
+ // TODO: handle case where l is > Math.pow(2, 29)
+ this._block.writeInt32BE(l, this._blockSize - 4)
- var data = buffer.slice(i, i + d.number)
- i += d.number
+ var hash = this._update(this._block) || this._hash()
- chunks.push(data)
+ return enc ? hash.toString(enc) : hash
+}
- // opcode
- } else {
- chunks.push(opcode)
+Hash.prototype._update = function () {
+ throw new Error('_update must be implemented by subclass')
+}
- i += 1
- }
- }
+module.exports = Hash
- return new Script(buffer, chunks)
-}
+}).call(this,require("buffer").Buffer)
+},{"buffer":4}],100:[function(require,module,exports){
+var exports = module.exports = function SHA (algorithm) {
+ algorithm = algorithm.toLowerCase()
-Script.fromChunks = function (chunks) {
- typeForce('Array', chunks)
+ var Algorithm = exports[algorithm]
+ if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')
- var bufferSize = chunks.reduce(function (accum, chunk) {
- // data chunk
- if (Buffer.isBuffer(chunk)) {
- return accum + bufferutils.pushDataSize(chunk.length) + chunk.length
- }
+ return new Algorithm()
+}
- // opcode
- return accum + 1
- }, 0.0)
+exports.sha = require('./sha')
+exports.sha1 = require('./sha1')
+exports.sha224 = require('./sha224')
+exports.sha256 = require('./sha256')
+exports.sha384 = require('./sha384')
+exports.sha512 = require('./sha512')
- var buffer = new Buffer(bufferSize)
- var offset = 0
+},{"./sha":101,"./sha1":102,"./sha224":103,"./sha256":104,"./sha384":105,"./sha512":106}],101:[function(require,module,exports){
+(function (Buffer){
+/*
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined
+ * in FIPS PUB 180-1
+ * This source code is derived from sha1.js of the same repository.
+ * The difference between SHA-0 and SHA-1 is just a bitwise rotate left
+ * operation was added.
+ */
- chunks.forEach(function (chunk) {
- // data chunk
- if (Buffer.isBuffer(chunk)) {
- offset += bufferutils.writePushDataInt(buffer, chunk.length, offset)
+var inherits = require('inherits')
+var Hash = require('./hash')
- chunk.copy(buffer, offset)
- offset += chunk.length
+var K = [
+ 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
+]
- // opcode
- } else {
- buffer.writeUInt8(chunk, offset)
- offset += 1
- }
- })
+var W = new Array(80)
- assert.equal(offset, buffer.length, 'Could not decode chunks')
- return new Script(buffer, chunks)
-}
+function Sha () {
+ this.init()
+ this._w = W
-Script.fromHex = function (hex) {
- return Script.fromBuffer(new Buffer(hex, 'hex'))
+ Hash.call(this, 64, 56)
}
-Script.EMPTY = Script.fromChunks([])
+inherits(Sha, Hash)
-Script.prototype.getHash = function () {
- return crypto.hash160(this.buffer)
-}
+Sha.prototype.init = function () {
+ this._a = 0x67452301
+ this._b = 0xefcdab89
+ this._c = 0x98badcfe
+ this._d = 0x10325476
+ this._e = 0xc3d2e1f0
-// FIXME: doesn't work for data chunks, maybe time to use buffertools.compare...
-Script.prototype.without = function (needle) {
- return Script.fromChunks(this.chunks.filter(function (op) {
- return op !== needle
- }))
+ return this
}
-var reverseOps = []
-for (var op in opcodes) {
- var code = opcodes[op]
- reverseOps[code] = op
+function rotl5 (num) {
+ return (num << 5) | (num >>> 27)
}
-Script.prototype.toASM = function () {
- return this.chunks.map(function (chunk) {
- // data chunk
- if (Buffer.isBuffer(chunk)) {
- return chunk.toString('hex')
+function rotl30 (num) {
+ return (num << 30) | (num >>> 2)
+}
- // opcode
- } else {
- return reverseOps[chunk]
- }
- }).join(' ')
+function ft (s, b, c, d) {
+ if (s === 0) return (b & c) | ((~b) & d)
+ if (s === 2) return (b & c) | (b & d) | (c & d)
+ return b ^ c ^ d
}
-Script.prototype.toBuffer = function () {
- return this.buffer
+Sha.prototype._update = function (M) {
+ var W = this._w
+
+ var a = this._a | 0
+ var b = this._b | 0
+ var c = this._c | 0
+ var d = this._d | 0
+ var e = this._e | 0
+
+ for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
+ for (; i < 80; ++i) W[i] = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16]
+
+ for (var j = 0; j < 80; ++j) {
+ var s = ~~(j / 20)
+ var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
+
+ e = d
+ d = c
+ c = rotl30(b)
+ b = a
+ a = t
+ }
+
+ this._a = (a + this._a) | 0
+ this._b = (b + this._b) | 0
+ this._c = (c + this._c) | 0
+ this._d = (d + this._d) | 0
+ this._e = (e + this._e) | 0
}
-Script.prototype.toHex = function () {
- return this.toBuffer().toString('hex')
+Sha.prototype._hash = function () {
+ var H = new Buffer(20)
+
+ H.writeInt32BE(this._a | 0, 0)
+ H.writeInt32BE(this._b | 0, 4)
+ H.writeInt32BE(this._c | 0, 8)
+ H.writeInt32BE(this._d | 0, 12)
+ H.writeInt32BE(this._e | 0, 16)
+
+ return H
}
-module.exports = Script
+module.exports = Sha
}).call(this,require("buffer").Buffer)
-},{"./bufferutils":57,"./crypto":58,"./opcodes":67,"assert":5,"buffer":7,"typeforce":53}],69:[function(require,module,exports){
+},{"./hash":99,"buffer":4,"inherits":93}],102:[function(require,module,exports){
(function (Buffer){
-var assert = require('assert')
-var ops = require('./opcodes')
-var typeForce = require('typeforce')
-
-var ecurve = require('ecurve')
-var curve = ecurve.getCurveByName('secp256k1')
+/*
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
+ * in FIPS PUB 180-1
+ * Version 2.1a Copyright Paul Johnston 2000 - 2002.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ * Distributed under the BSD License
+ * See http://pajhome.org.uk/crypt/md5 for details.
+ */
-var ECSignature = require('./ecsignature')
-var Script = require('./script')
+var inherits = require('inherits')
+var Hash = require('./hash')
-function isCanonicalPubKey (buffer) {
- if (!Buffer.isBuffer(buffer)) return false
+var K = [
+ 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
+]
- try {
- ecurve.Point.decodeFrom(curve, buffer)
- } catch (e) {
- if (!(e.message.match(/Invalid sequence (length|tag)/)))
- throw e
+var W = new Array(80)
- return false
- }
+function Sha1 () {
+ this.init()
+ this._w = W
- return true
+ Hash.call(this, 64, 56)
}
-function isCanonicalSignature (buffer) {
- if (!Buffer.isBuffer(buffer)) return false
-
- try {
- ECSignature.parseScriptSignature(buffer)
- } catch (e) {
- if (!(e.message.match(/Not a DER sequence|Invalid sequence length|Expected a DER integer|R length is zero|S length is zero|R value excessively padded|S value excessively padded|R value is negative|S value is negative|Invalid hashType/))) {
- throw e
- }
+inherits(Sha1, Hash)
- return false
- }
+Sha1.prototype.init = function () {
+ this._a = 0x67452301
+ this._b = 0xefcdab89
+ this._c = 0x98badcfe
+ this._d = 0x10325476
+ this._e = 0xc3d2e1f0
- return true
+ return this
}
-function isPubKeyHashInput (script) {
- return script.chunks.length === 2 &&
- isCanonicalSignature(script.chunks[0]) &&
- isCanonicalPubKey(script.chunks[1])
+function rotl1 (num) {
+ return (num << 1) | (num >>> 31)
}
-function isPubKeyHashOutput (script) {
- return script.chunks.length === 5 &&
- script.chunks[0] === ops.OP_DUP &&
- script.chunks[1] === ops.OP_HASH160 &&
- Buffer.isBuffer(script.chunks[2]) &&
- script.chunks[2].length === 20 &&
- script.chunks[3] === ops.OP_EQUALVERIFY &&
- script.chunks[4] === ops.OP_CHECKSIG
+function rotl5 (num) {
+ return (num << 5) | (num >>> 27)
}
-function isPubKeyInput (script) {
- return script.chunks.length === 1 &&
- isCanonicalSignature(script.chunks[0])
+function rotl30 (num) {
+ return (num << 30) | (num >>> 2)
}
-function isPubKeyOutput (script) {
- return script.chunks.length === 2 &&
- isCanonicalPubKey(script.chunks[0]) &&
- script.chunks[1] === ops.OP_CHECKSIG
+function ft (s, b, c, d) {
+ if (s === 0) return (b & c) | ((~b) & d)
+ if (s === 2) return (b & c) | (b & d) | (c & d)
+ return b ^ c ^ d
}
-function isScriptHashInput (script, allowIncomplete) {
- if (script.chunks.length < 2) return false
+Sha1.prototype._update = function (M) {
+ var W = this._w
- var lastChunk = script.chunks[script.chunks.length - 1]
- if (!Buffer.isBuffer(lastChunk)) return false
+ var a = this._a | 0
+ var b = this._b | 0
+ var c = this._c | 0
+ var d = this._d | 0
+ var e = this._e | 0
- var scriptSig = Script.fromChunks(script.chunks.slice(0, -1))
- var redeemScript = Script.fromBuffer(lastChunk)
+ for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
+ for (; i < 80; ++i) W[i] = rotl1(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16])
- // is redeemScript a valid script?
- if (redeemScript.chunks.length === 0) return false
+ for (var j = 0; j < 80; ++j) {
+ var s = ~~(j / 20)
+ var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
- return classifyInput(scriptSig, allowIncomplete) === classifyOutput(redeemScript)
-}
+ e = d
+ d = c
+ c = rotl30(b)
+ b = a
+ a = t
+ }
-function isScriptHashOutput (script) {
- return script.chunks.length === 3 &&
- script.chunks[0] === ops.OP_HASH160 &&
- Buffer.isBuffer(script.chunks[1]) &&
- script.chunks[1].length === 20 &&
- script.chunks[2] === ops.OP_EQUAL
+ this._a = (a + this._a) | 0
+ this._b = (b + this._b) | 0
+ this._c = (c + this._c) | 0
+ this._d = (d + this._d) | 0
+ this._e = (e + this._e) | 0
}
-// allowIncomplete is to account for combining signatures
-// See https://github.com/bitcoin/bitcoin/blob/f425050546644a36b0b8e0eb2f6934a3e0f6f80f/src/script/sign.cpp#L195-L197
-function isMultisigInput (script, allowIncomplete) {
- if (script.chunks.length < 2) return false
- if (script.chunks[0] !== ops.OP_0) return false
+Sha1.prototype._hash = function () {
+ var H = new Buffer(20)
- if (allowIncomplete) {
- return script.chunks.slice(1).every(function (chunk) {
- return chunk === ops.OP_0 || isCanonicalSignature(chunk)
- })
- }
+ H.writeInt32BE(this._a | 0, 0)
+ H.writeInt32BE(this._b | 0, 4)
+ H.writeInt32BE(this._c | 0, 8)
+ H.writeInt32BE(this._d | 0, 12)
+ H.writeInt32BE(this._e | 0, 16)
- return script.chunks.slice(1).every(isCanonicalSignature)
+ return H
}
-function isMultisigOutput (script) {
- if (script.chunks.length < 4) return false
- if (script.chunks[script.chunks.length - 1] !== ops.OP_CHECKMULTISIG) return false
+module.exports = Sha1
- var mOp = script.chunks[0]
- if (mOp === ops.OP_0) return false
- if (mOp < ops.OP_1) return false
- if (mOp > ops.OP_16) return false
+}).call(this,require("buffer").Buffer)
+},{"./hash":99,"buffer":4,"inherits":93}],103:[function(require,module,exports){
+(function (Buffer){
+/**
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
+ * in FIPS 180-2
+ * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ *
+ */
- var nOp = script.chunks[script.chunks.length - 2]
- if (nOp === ops.OP_0) return false
- if (nOp < ops.OP_1) return false
- if (nOp > ops.OP_16) return false
+var inherits = require('inherits')
+var Sha256 = require('./sha256')
+var Hash = require('./hash')
- var m = mOp - (ops.OP_1 - 1)
- var n = nOp - (ops.OP_1 - 1)
- if (n < m) return false
+var W = new Array(64)
- var pubKeys = script.chunks.slice(1, -2)
- if (n < pubKeys.length) return false
+function Sha224 () {
+ this.init()
- return pubKeys.every(isCanonicalPubKey)
-}
+ this._w = W // new Array(64)
-function isNullDataOutput (script) {
- return script.chunks[0] === ops.OP_RETURN
+ Hash.call(this, 64, 56)
}
-function classifyOutput (script) {
- typeForce('Script', script)
+inherits(Sha224, Sha256)
- if (isPubKeyHashOutput(script)) {
- return 'pubkeyhash'
- } else if (isScriptHashOutput(script)) {
- return 'scripthash'
- } else if (isMultisigOutput(script)) {
- return 'multisig'
- } else if (isPubKeyOutput(script)) {
- return 'pubkey'
- } else if (isNullDataOutput(script)) {
- return 'nulldata'
- }
+Sha224.prototype.init = function () {
+ this._a = 0xc1059ed8
+ this._b = 0x367cd507
+ this._c = 0x3070dd17
+ this._d = 0xf70e5939
+ this._e = 0xffc00b31
+ this._f = 0x68581511
+ this._g = 0x64f98fa7
+ this._h = 0xbefa4fa4
- return 'nonstandard'
+ return this
}
-function classifyInput (script, allowIncomplete) {
- typeForce('Script', script)
+Sha224.prototype._hash = function () {
+ var H = new Buffer(28)
- if (isPubKeyHashInput(script)) {
- return 'pubkeyhash'
- } else if (isMultisigInput(script, allowIncomplete)) {
- return 'multisig'
- } else if (isScriptHashInput(script, allowIncomplete)) {
- return 'scripthash'
- } else if (isPubKeyInput(script)) {
- return 'pubkey'
- }
+ H.writeInt32BE(this._a, 0)
+ H.writeInt32BE(this._b, 4)
+ H.writeInt32BE(this._c, 8)
+ H.writeInt32BE(this._d, 12)
+ H.writeInt32BE(this._e, 16)
+ H.writeInt32BE(this._f, 20)
+ H.writeInt32BE(this._g, 24)
- return 'nonstandard'
+ return H
}
-// Standard Script Templates
-// {pubKey} OP_CHECKSIG
-function pubKeyOutput (pubKey) {
- return Script.fromChunks([
- pubKey.toBuffer(),
- ops.OP_CHECKSIG
- ])
-}
+module.exports = Sha224
-// OP_DUP OP_HASH160 {pubKeyHash} OP_EQUALVERIFY OP_CHECKSIG
-function pubKeyHashOutput (hash) {
- typeForce('Buffer', hash)
-
- return Script.fromChunks([
- ops.OP_DUP,
- ops.OP_HASH160,
- hash,
- ops.OP_EQUALVERIFY,
- ops.OP_CHECKSIG
- ])
-}
+}).call(this,require("buffer").Buffer)
+},{"./hash":99,"./sha256":104,"buffer":4,"inherits":93}],104:[function(require,module,exports){
+(function (Buffer){
+/**
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
+ * in FIPS 180-2
+ * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ *
+ */
-// OP_HASH160 {scriptHash} OP_EQUAL
-function scriptHashOutput (hash) {
- typeForce('Buffer', hash)
+var inherits = require('inherits')
+var Hash = require('./hash')
- return Script.fromChunks([
- ops.OP_HASH160,
- hash,
- ops.OP_EQUAL
- ])
-}
+var K = [
+ 0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
+ 0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
+ 0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
+ 0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
+ 0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
+ 0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
+ 0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
+ 0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
+ 0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
+ 0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
+ 0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
+ 0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
+ 0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
+ 0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
+ 0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
+ 0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
+]
-// m [pubKeys ...] n OP_CHECKMULTISIG
-function multisigOutput (m, pubKeys) {
- typeForce(['ECPubKey'], pubKeys)
+var W = new Array(64)
- assert(pubKeys.length >= m, 'Not enough pubKeys provided')
+function Sha256 () {
+ this.init()
- var pubKeyBuffers = pubKeys.map(function (pubKey) {
- return pubKey.toBuffer()
- })
- var n = pubKeys.length
+ this._w = W // new Array(64)
- return Script.fromChunks([].concat(
- (ops.OP_1 - 1) + m,
- pubKeyBuffers,
- (ops.OP_1 - 1) + n,
- ops.OP_CHECKMULTISIG
- ))
+ Hash.call(this, 64, 56)
}
-// {signature}
-function pubKeyInput (signature) {
- typeForce('Buffer', signature)
-
- return Script.fromChunks([signature])
-}
+inherits(Sha256, Hash)
-// {signature} {pubKey}
-function pubKeyHashInput (signature, pubKey) {
- typeForce('Buffer', signature)
+Sha256.prototype.init = function () {
+ this._a = 0x6a09e667
+ this._b = 0xbb67ae85
+ this._c = 0x3c6ef372
+ this._d = 0xa54ff53a
+ this._e = 0x510e527f
+ this._f = 0x9b05688c
+ this._g = 0x1f83d9ab
+ this._h = 0x5be0cd19
- return Script.fromChunks([signature, pubKey.toBuffer()])
+ return this
}
-// <scriptSig> {serialized scriptPubKey script}
-function scriptHashInput (scriptSig, scriptPubKey) {
- return Script.fromChunks([].concat(
- scriptSig.chunks,
- scriptPubKey.toBuffer()
- ))
+function ch (x, y, z) {
+ return z ^ (x & (y ^ z))
}
-// OP_0 [signatures ...]
-function multisigInput (signatures, scriptPubKey) {
- if (scriptPubKey) {
- assert(isMultisigOutput(scriptPubKey))
-
- var mOp = scriptPubKey.chunks[0]
- var nOp = scriptPubKey.chunks[scriptPubKey.chunks.length - 2]
- var m = mOp - (ops.OP_1 - 1)
- var n = nOp - (ops.OP_1 - 1)
-
- assert(signatures.length >= m, 'Not enough signatures provided')
- assert(signatures.length <= n, 'Too many signatures provided')
- }
-
- return Script.fromChunks([].concat(ops.OP_0, signatures))
+function maj (x, y, z) {
+ return (x & y) | (z & (x | y))
}
-function nullDataOutput (data) {
- return Script.fromChunks([ops.OP_RETURN, data])
+function sigma0 (x) {
+ return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10)
}
-module.exports = {
- isCanonicalPubKey: isCanonicalPubKey,
- isCanonicalSignature: isCanonicalSignature,
- isPubKeyHashInput: isPubKeyHashInput,
- isPubKeyHashOutput: isPubKeyHashOutput,
- isPubKeyInput: isPubKeyInput,
- isPubKeyOutput: isPubKeyOutput,
- isScriptHashInput: isScriptHashInput,
- isScriptHashOutput: isScriptHashOutput,
- isMultisigInput: isMultisigInput,
- isMultisigOutput: isMultisigOutput,
- isNullDataOutput: isNullDataOutput,
- classifyOutput: classifyOutput,
- classifyInput: classifyInput,
- pubKeyOutput: pubKeyOutput,
- pubKeyHashOutput: pubKeyHashOutput,
- scriptHashOutput: scriptHashOutput,
- multisigOutput: multisigOutput,
- pubKeyInput: pubKeyInput,
- pubKeyHashInput: pubKeyHashInput,
- scriptHashInput: scriptHashInput,
- multisigInput: multisigInput,
- dataOutput: function (data) {
- console.warn('dataOutput is deprecated, use nullDataOutput by 2.0.0')
- return nullDataOutput(data)
- },
- nullDataOutput: nullDataOutput
+function sigma1 (x) {
+ return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7)
}
-}).call(this,require("buffer").Buffer)
-},{"./ecsignature":62,"./opcodes":67,"./script":68,"assert":5,"buffer":7,"ecurve":49,"typeforce":53}],70:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var bufferutils = require('./bufferutils')
-var crypto = require('./crypto')
-var typeForce = require('typeforce')
-var opcodes = require('./opcodes')
-var scripts = require('./scripts')
-
-var Address = require('./address')
-var ECSignature = require('./ecsignature')
-var Script = require('./script')
-
-function Transaction () {
- this.version = 1
- this.locktime = 0
- this.ins = []
- this.outs = []
+function gamma0 (x) {
+ return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3)
}
-Transaction.DEFAULT_SEQUENCE = 0xffffffff
-Transaction.SIGHASH_ALL = 0x01
-Transaction.SIGHASH_NONE = 0x02
-Transaction.SIGHASH_SINGLE = 0x03
-Transaction.SIGHASH_ANYONECANPAY = 0x80
+function gamma1 (x) {
+ return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10)
+}
-Transaction.fromBuffer = function (buffer, __disableAssert) {
- var offset = 0
- function readSlice (n) {
- offset += n
- return buffer.slice(offset - n, offset)
- }
+Sha256.prototype._update = function (M) {
+ var W = this._w
- function readUInt32 () {
- var i = buffer.readUInt32LE(offset)
- offset += 4
- return i
- }
+ var a = this._a | 0
+ var b = this._b | 0
+ var c = this._c | 0
+ var d = this._d | 0
+ var e = this._e | 0
+ var f = this._f | 0
+ var g = this._g | 0
+ var h = this._h | 0
- function readUInt64 () {
- var i = bufferutils.readUInt64LE(buffer, offset)
- offset += 8
- return i
- }
+ for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
+ for (; i < 64; ++i) W[i] = (gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16]) | 0
- function readVarInt () {
- var vi = bufferutils.readVarInt(buffer, offset)
- offset += vi.size
- return vi.number
- }
+ for (var j = 0; j < 64; ++j) {
+ var T1 = (h + sigma1(e) + ch(e, f, g) + K[j] + W[j]) | 0
+ var T2 = (sigma0(a) + maj(a, b, c)) | 0
- function readScript () {
- return Script.fromBuffer(readSlice(readVarInt()))
+ h = g
+ g = f
+ f = e
+ e = (d + T1) | 0
+ d = c
+ c = b
+ b = a
+ a = (T1 + T2) | 0
}
- function readGenerationScript () {
- return new Script(readSlice(readVarInt()), [])
- }
+ this._a = (a + this._a) | 0
+ this._b = (b + this._b) | 0
+ this._c = (c + this._c) | 0
+ this._d = (d + this._d) | 0
+ this._e = (e + this._e) | 0
+ this._f = (f + this._f) | 0
+ this._g = (g + this._g) | 0
+ this._h = (h + this._h) | 0
+}
- var tx = new Transaction()
- tx.version = readUInt32()
+Sha256.prototype._hash = function () {
+ var H = new Buffer(32)
- var vinLen = readVarInt()
- for (var i = 0; i < vinLen; ++i) {
- var hash = readSlice(32)
-
- if (Transaction.isCoinbaseHash(hash)) {
- tx.ins.push({
- hash: hash,
- index: readUInt32(),
- script: readGenerationScript(),
- sequence: readUInt32()
- })
- } else {
- tx.ins.push({
- hash: hash,
- index: readUInt32(),
- script: readScript(),
- sequence: readUInt32()
- })
- }
- }
+ H.writeInt32BE(this._a, 0)
+ H.writeInt32BE(this._b, 4)
+ H.writeInt32BE(this._c, 8)
+ H.writeInt32BE(this._d, 12)
+ H.writeInt32BE(this._e, 16)
+ H.writeInt32BE(this._f, 20)
+ H.writeInt32BE(this._g, 24)
+ H.writeInt32BE(this._h, 28)
- var voutLen = readVarInt()
- for (i = 0; i < voutLen; ++i) {
- tx.outs.push({
- value: readUInt64(),
- script: readScript()
- })
- }
+ return H
+}
- tx.locktime = readUInt32()
+module.exports = Sha256
- if (!__disableAssert) {
- assert.equal(offset, buffer.length, 'Transaction has unexpected data')
- }
+}).call(this,require("buffer").Buffer)
+},{"./hash":99,"buffer":4,"inherits":93}],105:[function(require,module,exports){
+(function (Buffer){
+var inherits = require('inherits')
+var SHA512 = require('./sha512')
+var Hash = require('./hash')
- return tx
-}
+var W = new Array(160)
-Transaction.fromHex = function (hex) {
- return Transaction.fromBuffer(new Buffer(hex, 'hex'))
-}
+function Sha384 () {
+ this.init()
+ this._w = W
-Transaction.isCoinbaseHash = function (buffer) {
- return Array.prototype.every.call(buffer, function (x) {
- return x === 0
- })
+ Hash.call(this, 128, 112)
}
-/**
- * Create a new txIn.
- *
- * Can be called with any of:
- *
- * - A transaction and an index
- * - A transaction hash and an index
- *
- * Note that this method does not sign the created input.
- */
-Transaction.prototype.addInput = function (hash, index, sequence, script) {
- if (sequence === undefined || sequence === null) {
- sequence = Transaction.DEFAULT_SEQUENCE
- }
-
- script = script || Script.EMPTY
-
- if (typeof hash === 'string') {
- // TxId hex is big-endian, we need little-endian
- hash = bufferutils.reverse(new Buffer(hash, 'hex'))
- } else if (hash instanceof Transaction) {
- hash = hash.getHash()
- }
+inherits(Sha384, SHA512)
- typeForce('Buffer', hash)
- typeForce('Number', index)
- typeForce('Number', sequence)
- typeForce('Script', script)
+Sha384.prototype.init = function () {
+ this._ah = 0xcbbb9d5d
+ this._bh = 0x629a292a
+ this._ch = 0x9159015a
+ this._dh = 0x152fecd8
+ this._eh = 0x67332667
+ this._fh = 0x8eb44a87
+ this._gh = 0xdb0c2e0d
+ this._hh = 0x47b5481d
- assert.equal(hash.length, 32, 'Expected hash length of 32, got ' + hash.length)
+ this._al = 0xc1059ed8
+ this._bl = 0x367cd507
+ this._cl = 0x3070dd17
+ this._dl = 0xf70e5939
+ this._el = 0xffc00b31
+ this._fl = 0x68581511
+ this._gl = 0x64f98fa7
+ this._hl = 0xbefa4fa4
- // Add the input and return the input's index
- return (this.ins.push({
- hash: hash,
- index: index,
- script: script,
- sequence: sequence
- }) - 1)
+ return this
}
-/**
- * Create a new txOut.
- *
- * Can be called with:
- *
- * - A base58 address string and a value
- * - An Address object and a value
- * - A scriptPubKey Script and a value
- */
-Transaction.prototype.addOutput = function (scriptPubKey, value) {
- // Attempt to get a valid address if it's a base58 address string
- if (typeof scriptPubKey === 'string') {
- scriptPubKey = Address.fromBase58Check(scriptPubKey)
- }
+Sha384.prototype._hash = function () {
+ var H = new Buffer(48)
- // Attempt to get a valid script if it's an Address object
- if (scriptPubKey instanceof Address) {
- scriptPubKey = scriptPubKey.toOutputScript()
+ function writeInt64BE (h, l, offset) {
+ H.writeInt32BE(h, offset)
+ H.writeInt32BE(l, offset + 4)
}
- typeForce('Script', scriptPubKey)
- typeForce('Number', value)
+ writeInt64BE(this._ah, this._al, 0)
+ writeInt64BE(this._bh, this._bl, 8)
+ writeInt64BE(this._ch, this._cl, 16)
+ writeInt64BE(this._dh, this._dl, 24)
+ writeInt64BE(this._eh, this._el, 32)
+ writeInt64BE(this._fh, this._fl, 40)
- // Add the output and return the output's index
- return (this.outs.push({
- script: scriptPubKey,
- value: value
- }) - 1)
+ return H
}
-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
- }
- })
+module.exports = Sha384
- newTx.outs = this.outs.map(function (txOut) {
- return {
- script: txOut.script,
- value: txOut.value
- }
- })
+}).call(this,require("buffer").Buffer)
+},{"./hash":99,"./sha512":106,"buffer":4,"inherits":93}],106:[function(require,module,exports){
+(function (Buffer){
+var inherits = require('inherits')
+var Hash = require('./hash')
- return newTx
-}
+var K = [
+ 0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
+ 0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
+ 0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
+ 0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
+ 0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
+ 0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
+ 0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
+ 0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
+ 0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
+ 0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
+ 0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
+ 0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
+ 0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
+ 0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
+ 0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
+ 0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
+ 0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
+ 0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
+ 0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
+ 0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
+ 0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
+ 0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
+ 0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
+ 0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
+ 0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
+ 0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
+ 0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
+ 0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
+ 0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
+ 0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
+ 0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
+ 0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
+ 0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
+ 0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
+ 0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
+ 0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
+ 0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
+ 0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
+ 0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
+ 0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
+]
-/**
- * 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, serializes and finally hashes the result. This hash can then be
- * used to sign the transaction input in question.
- */
-Transaction.prototype.hashForSignature = function (inIndex, prevOutScript, hashType) {
- // FIXME: remove in 2.x.y
- if (arguments[0] instanceof Script) {
- console.warn('hashForSignature(prevOutScript, inIndex, ...) has been deprecated. Use hashForSignature(inIndex, prevOutScript, ...)')
+var W = new Array(160)
- // swap the arguments (must be stored in tmp, arguments is special)
- var tmp = arguments[0]
- inIndex = arguments[1]
- prevOutScript = tmp
- }
+function Sha512 () {
+ this.init()
+ this._w = W
- typeForce('Number', inIndex)
- typeForce('Script', prevOutScript)
- typeForce('Number', hashType)
+ Hash.call(this, 128, 112)
+}
- assert(inIndex >= 0, 'Invalid vin index')
- assert(inIndex < this.ins.length, 'Invalid vin index')
+inherits(Sha512, Hash)
- var txTmp = this.clone()
- var hashScript = prevOutScript.without(opcodes.OP_CODESEPARATOR)
+Sha512.prototype.init = function () {
+ this._ah = 0x6a09e667
+ this._bh = 0xbb67ae85
+ this._ch = 0x3c6ef372
+ this._dh = 0xa54ff53a
+ this._eh = 0x510e527f
+ this._fh = 0x9b05688c
+ this._gh = 0x1f83d9ab
+ this._hh = 0x5be0cd19
- // Blank out other inputs' signatures
- txTmp.ins.forEach(function (txIn) {
- txIn.script = Script.EMPTY
- })
- txTmp.ins[inIndex].script = hashScript
+ this._al = 0xf3bcc908
+ this._bl = 0x84caa73b
+ this._cl = 0xfe94f82b
+ this._dl = 0x5f1d36f1
+ this._el = 0xade682d1
+ this._fl = 0x2b3e6c1f
+ this._gl = 0xfb41bd6b
+ this._hl = 0x137e2179
- var hashTypeModifier = hashType & 0x1f
+ return this
+}
- if (hashTypeModifier === Transaction.SIGHASH_NONE) {
- assert(false, 'SIGHASH_NONE not yet supported')
- } else if (hashTypeModifier === Transaction.SIGHASH_SINGLE) {
- assert(false, 'SIGHASH_SINGLE not yet supported')
- }
+function Ch (x, y, z) {
+ return z ^ (x & (y ^ z))
+}
- if (hashType & Transaction.SIGHASH_ANYONECANPAY) {
- assert(false, 'SIGHASH_ANYONECANPAY not yet supported')
- }
+function maj (x, y, z) {
+ return (x & y) | (z & (x | y))
+}
- var hashTypeBuffer = new Buffer(4)
- hashTypeBuffer.writeInt32LE(hashType, 0)
+function sigma0 (x, xl) {
+ return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25)
+}
- var buffer = Buffer.concat([txTmp.toBuffer(), hashTypeBuffer])
- return crypto.hash256(buffer)
+function sigma1 (x, xl) {
+ return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23)
}
-Transaction.prototype.getHash = function () {
- return crypto.hash256(this.toBuffer())
+function Gamma0 (x, xl) {
+ return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7)
}
-Transaction.prototype.getId = function () {
- // TxHash is little-endian, we need big-endian
- return bufferutils.reverse(this.getHash()).toString('hex')
+function Gamma0l (x, xl) {
+ return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)
}
-Transaction.prototype.toBuffer = function () {
- function scriptSize (script) {
- var length = script.buffer.length
+function Gamma1 (x, xl) {
+ return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)
+}
- return bufferutils.varIntSize(length) + length
- }
+function Gamma1l (x, xl) {
+ return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)
+}
- var buffer = new Buffer(
- 8 +
- bufferutils.varIntSize(this.ins.length) +
- bufferutils.varIntSize(this.outs.length) +
- this.ins.reduce(function (sum, input) { return sum + 40 + scriptSize(input.script) }, 0) +
- this.outs.reduce(function (sum, output) { return sum + 8 + scriptSize(output.script) }, 0)
- )
+function getCarry (a, b) {
+ return (a >>> 0) < (b >>> 0) ? 1 : 0
+}
- var offset = 0
- function writeSlice (slice) {
- slice.copy(buffer, offset)
- offset += slice.length
- }
+Sha512.prototype._update = function (M) {
+ var W = this._w
- function writeUInt32 (i) {
- buffer.writeUInt32LE(i, offset)
- offset += 4
- }
+ var ah = this._ah | 0
+ var bh = this._bh | 0
+ var ch = this._ch | 0
+ var dh = this._dh | 0
+ var eh = this._eh | 0
+ var fh = this._fh | 0
+ var gh = this._gh | 0
+ var hh = this._hh | 0
- function writeUInt64 (i) {
- bufferutils.writeUInt64LE(buffer, i, offset)
- offset += 8
- }
+ var al = this._al | 0
+ var bl = this._bl | 0
+ var cl = this._cl | 0
+ var dl = this._dl | 0
+ var el = this._el | 0
+ var fl = this._fl | 0
+ var gl = this._gl | 0
+ var hl = this._hl | 0
- function writeVarInt (i) {
- var n = bufferutils.writeVarInt(buffer, i, offset)
- offset += n
+ for (var i = 0; i < 32; i += 2) {
+ W[i] = M.readInt32BE(i * 4)
+ W[i + 1] = M.readInt32BE(i * 4 + 4)
}
+ for (; i < 160; i += 2) {
+ var xh = W[i - 15 * 2]
+ var xl = W[i - 15 * 2 + 1]
+ var gamma0 = Gamma0(xh, xl)
+ var gamma0l = Gamma0l(xl, xh)
- writeUInt32(this.version)
- writeVarInt(this.ins.length)
+ xh = W[i - 2 * 2]
+ xl = W[i - 2 * 2 + 1]
+ var gamma1 = Gamma1(xh, xl)
+ var gamma1l = Gamma1l(xl, xh)
- this.ins.forEach(function (txIn) {
- writeSlice(txIn.hash)
- writeUInt32(txIn.index)
- writeVarInt(txIn.script.buffer.length)
- writeSlice(txIn.script.buffer)
- writeUInt32(txIn.sequence)
- })
+ // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
+ var Wi7h = W[i - 7 * 2]
+ var Wi7l = W[i - 7 * 2 + 1]
- writeVarInt(this.outs.length)
- this.outs.forEach(function (txOut) {
- writeUInt64(txOut.value)
- writeVarInt(txOut.script.buffer.length)
- writeSlice(txOut.script.buffer)
- })
+ var Wi16h = W[i - 16 * 2]
+ var Wi16l = W[i - 16 * 2 + 1]
- writeUInt32(this.locktime)
+ var Wil = (gamma0l + Wi7l) | 0
+ var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0
+ Wil = (Wil + gamma1l) | 0
+ Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0
+ Wil = (Wil + Wi16l) | 0
+ Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0
- return buffer
-}
+ W[i] = Wih
+ W[i + 1] = Wil
+ }
-Transaction.prototype.toHex = function () {
- return this.toBuffer().toString('hex')
-}
+ for (var j = 0; j < 160; j += 2) {
+ Wih = W[j]
+ Wil = W[j + 1]
-Transaction.prototype.setInputScript = function (index, script) {
- typeForce('Number', index)
- typeForce('Script', script)
+ var majh = maj(ah, bh, ch)
+ var majl = maj(al, bl, cl)
- this.ins[index].script = script
-}
+ var sigma0h = sigma0(ah, al)
+ var sigma0l = sigma0(al, ah)
+ var sigma1h = sigma1(eh, el)
+ var sigma1l = sigma1(el, eh)
-// FIXME: remove in 2.x.y
-Transaction.prototype.sign = function (index, privKey, hashType) {
- console.warn('Transaction.prototype.sign is deprecated. Use TransactionBuilder instead.')
+ // t1 = h + sigma1 + ch + K[j] + W[j]
+ var Kih = K[j]
+ var Kil = K[j + 1]
- var prevOutScript = privKey.pub.getAddress().toOutputScript()
- var signature = this.signInput(index, prevOutScript, privKey, hashType)
+ var chh = Ch(eh, fh, gh)
+ var chl = Ch(el, fl, gl)
- var scriptSig = scripts.pubKeyHashInput(signature, privKey.pub)
- this.setInputScript(index, scriptSig)
-}
+ var t1l = (hl + sigma1l) | 0
+ var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0
+ t1l = (t1l + chl) | 0
+ t1h = (t1h + chh + getCarry(t1l, chl)) | 0
+ t1l = (t1l + Kil) | 0
+ t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0
+ t1l = (t1l + Wil) | 0
+ t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0
-// FIXME: remove in 2.x.y
-Transaction.prototype.signInput = function (index, prevOutScript, privKey, hashType) {
- console.warn('Transaction.prototype.signInput is deprecated. Use TransactionBuilder instead.')
+ // t2 = sigma0 + maj
+ var t2l = (sigma0l + majl) | 0
+ var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0
- hashType = hashType || Transaction.SIGHASH_ALL
+ hh = gh
+ hl = gl
+ gh = fh
+ gl = fl
+ fh = eh
+ fl = el
+ el = (dl + t1l) | 0
+ eh = (dh + t1h + getCarry(el, dl)) | 0
+ dh = ch
+ dl = cl
+ ch = bh
+ cl = bl
+ bh = ah
+ bl = al
+ al = (t1l + t2l) | 0
+ ah = (t1h + t2h + getCarry(al, t1l)) | 0
+ }
- var hash = this.hashForSignature(index, prevOutScript, hashType)
- var signature = privKey.sign(hash)
+ this._al = (this._al + al) | 0
+ this._bl = (this._bl + bl) | 0
+ this._cl = (this._cl + cl) | 0
+ this._dl = (this._dl + dl) | 0
+ this._el = (this._el + el) | 0
+ this._fl = (this._fl + fl) | 0
+ this._gl = (this._gl + gl) | 0
+ this._hl = (this._hl + hl) | 0
- return signature.toScriptSignature(hashType)
+ this._ah = (this._ah + ah + getCarry(this._al, al)) | 0
+ this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0
+ this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0
+ this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0
+ this._eh = (this._eh + eh + getCarry(this._el, el)) | 0
+ this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0
+ this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0
+ this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0
}
-// FIXME: remove in 2.x.y
-Transaction.prototype.validateInput = function (index, prevOutScript, pubKey, buffer) {
- console.warn('Transaction.prototype.validateInput is deprecated. Use TransactionBuilder instead.')
+Sha512.prototype._hash = function () {
+ var H = new Buffer(64)
+
+ function writeInt64BE (h, l, offset) {
+ H.writeInt32BE(h, offset)
+ H.writeInt32BE(l, offset + 4)
+ }
- var parsed = ECSignature.parseScriptSignature(buffer)
- var hash = this.hashForSignature(index, prevOutScript, parsed.hashType)
+ writeInt64BE(this._ah, this._al, 0)
+ writeInt64BE(this._bh, this._bl, 8)
+ writeInt64BE(this._ch, this._cl, 16)
+ writeInt64BE(this._dh, this._dl, 24)
+ writeInt64BE(this._eh, this._el, 32)
+ writeInt64BE(this._fh, this._fl, 40)
+ writeInt64BE(this._gh, this._gl, 48)
+ writeInt64BE(this._hh, this._hl, 56)
- return pubKey.verify(hash, parsed.signature)
+ return H
}
-module.exports = Transaction
+module.exports = Sha512
}).call(this,require("buffer").Buffer)
-},{"./address":54,"./bufferutils":57,"./crypto":58,"./ecsignature":62,"./opcodes":67,"./script":68,"./scripts":69,"assert":5,"buffer":7,"typeforce":53}],71:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var ops = require('./opcodes')
-var scripts = require('./scripts')
-
-var ECPubKey = require('./ecpubkey')
-var ECSignature = require('./ecsignature')
-var Script = require('./script')
-var Transaction = require('./transaction')
-
-function extractInput (txIn) {
- var redeemScript
- var scriptSig = txIn.script
- var prevOutScript
- var prevOutType = scripts.classifyInput(scriptSig, true)
- var scriptType
-
- // Re-classify if scriptHash
- if (prevOutType === 'scripthash') {
- redeemScript = Script.fromBuffer(scriptSig.chunks.slice(-1)[0])
- prevOutScript = scripts.scriptHashOutput(redeemScript.getHash())
+},{"./hash":99,"buffer":4,"inherits":93}],107:[function(require,module,exports){
+var inherits = require('inherits')
+var native = require('./native')
- scriptSig = Script.fromChunks(scriptSig.chunks.slice(0, -1))
- scriptType = scripts.classifyInput(scriptSig, true)
- } else {
- scriptType = prevOutType
- }
+function TfTypeError (type, value, valueTypeName) {
+ this.__error = Error.call(this)
+ this.__type = type
+ this.__value = value
+ this.__valueTypeName = valueTypeName
- // Extract hashType, pubKeys and signatures
- var hashType, parsed, pubKeys, signatures
+ var message
+ Object.defineProperty(this, 'message', {
+ enumerable: true,
+ get: function () {
+ if (message) return message
- switch (scriptType) {
- case 'pubkeyhash': {
- parsed = ECSignature.parseScriptSignature(scriptSig.chunks[0])
- hashType = parsed.hashType
- pubKeys = [ECPubKey.fromBuffer(scriptSig.chunks[1])]
- signatures = [parsed.signature]
- prevOutScript = pubKeys[0].getAddress().toOutputScript()
+ valueTypeName = valueTypeName || getValueTypeName(value)
+ message = tfErrorString(type, value, valueTypeName)
- break
+ return message
}
+ })
+}
- case 'pubkey': {
- parsed = ECSignature.parseScriptSignature(scriptSig.chunks[0])
- hashType = parsed.hashType
- signatures = [parsed.signature]
+function TfPropertyTypeError (type, property, label, value, error, valueTypeName) {
+ this.__error = error || Error.call(this)
+ this.__label = label
+ this.__property = property
+ this.__type = type
+ this.__value = value
+ this.__valueTypeName = valueTypeName
- if (redeemScript) {
- pubKeys = [ECPubKey.fromBuffer(redeemScript.chunks[0])]
+ var message
+ Object.defineProperty(this, 'message', {
+ enumerable: true,
+ get: function () {
+ if (message) return message
+ if (type) {
+ valueTypeName = valueTypeName || getValueTypeName(value)
+ message = tfPropertyErrorString(type, label, property, value, valueTypeName)
+ } else {
+ message = 'Unexpected property "' + property + '"'
}
- break
+ return message
}
+ })
+}
- case 'multisig': {
- signatures = scriptSig.chunks.slice(1).map(function (chunk) {
- if (chunk === ops.OP_0) return chunk
-
- var parsed = ECSignature.parseScriptSignature(chunk)
- hashType = parsed.hashType
+// inherit from Error, assign stack
+[TfTypeError, TfPropertyTypeError].forEach(function (tfErrorType) {
+ inherits(tfErrorType, Error)
+ Object.defineProperty(tfErrorType, 'stack', {
+ get: function () { return this.__error.stack }
+ })
+})
- return parsed.signature
- })
+function tfCustomError (expected, actual) {
+ return new TfTypeError(expected, {}, actual)
+}
- if (redeemScript) {
- pubKeys = redeemScript.chunks.slice(1, -2).map(ECPubKey.fromBuffer)
- }
+function tfSubError (e, property, label) {
+ // sub child?
+ if (e instanceof TfPropertyTypeError) {
+ property = property + '.' + e.__property
+ label = e.__label
- break
- }
+ return new TfPropertyTypeError(
+ e.__type, property, label, e.__value, e.__error, e.__valueTypeName
+ )
}
- return {
- hashType: hashType,
- prevOutScript: prevOutScript,
- prevOutType: prevOutType,
- pubKeys: pubKeys,
- redeemScript: redeemScript,
- scriptType: scriptType,
- signatures: signatures
+ // child?
+ if (e instanceof TfTypeError) {
+ return new TfPropertyTypeError(
+ e.__type, property, label, e.__value, e.__error, e.__valueTypeName
+ )
}
-}
-
-function TransactionBuilder () {
- this.prevTxMap = {}
- this.prevOutScripts = {}
- this.prevOutTypes = {}
- this.inputs = []
- this.tx = new Transaction()
+ return e
}
-TransactionBuilder.fromTransaction = function (transaction) {
- var txb = new TransactionBuilder()
-
- // Copy other transaction fields
- txb.tx.version = transaction.version
- txb.tx.locktime = transaction.locktime
+function getTypeName (fn) {
+ return fn.name || fn.toString().match(/function (.*?)\s*\(/)[1]
+}
- // Extract/add inputs
- transaction.ins.forEach(function (txIn) {
- txb.addInput(txIn.hash, txIn.index, txIn.sequence)
- })
+function getValueTypeName (value) {
+ return native.Nil(value) ? '' : getTypeName(value.constructor)
+}
- // Extract/add outputs
- transaction.outs.forEach(function (txOut) {
- txb.addOutput(txOut.script, txOut.value)
- })
+function getValue (value) {
+ if (native.Function(value)) return ''
+ if (native.String(value)) return JSON.stringify(value)
+ if (value && native.Object(value)) return ''
+ return value
+}
- // Extract/add signatures
- txb.inputs = transaction.ins.map(function (txIn) {
- // TODO: remove me after testcase added
- assert(!Transaction.isCoinbaseHash(txIn.hash), 'coinbase inputs not supported')
+function tfJSON (type) {
+ if (native.Function(type)) return type.toJSON ? type.toJSON() : getTypeName(type)
+ if (native.Array(type)) return 'Array'
+ if (type && native.Object(type)) return 'Object'
- // Ignore empty scripts
- if (txIn.script.buffer.length === 0) return {}
+ return type !== undefined ? type : ''
+}
- return extractInput(txIn)
- })
+function tfErrorString (type, value, valueTypeName) {
+ var valueJson = getValue(value)
- return txb
+ return 'Expected ' + tfJSON(type) + ', got' +
+ (valueTypeName !== '' ? ' ' + valueTypeName : '') +
+ (valueJson !== '' ? ' ' + valueJson : '')
}
-TransactionBuilder.prototype.addInput = function (prevTx, index, sequence, prevOutScript) {
- var prevOutHash
-
- // txId
- if (typeof prevTx === 'string') {
- prevOutHash = new Buffer(prevTx, 'hex')
+function tfPropertyErrorString (type, label, name, value, valueTypeName) {
+ var description = '" of type '
+ if (label === 'key') description = '" with key type '
- // TxId hex is big-endian, we want little-endian hash
- Array.prototype.reverse.call(prevOutHash)
+ return tfErrorString('property "' + tfJSON(name) + description + tfJSON(type), value, valueTypeName)
+}
- // Transaction
- } else if (prevTx instanceof Transaction) {
- prevOutHash = prevTx.getHash()
- prevOutScript = prevTx.outs[index].script
+module.exports = {
+ TfTypeError: TfTypeError,
+ TfPropertyTypeError: TfPropertyTypeError,
+ tfCustomError: tfCustomError,
+ tfSubError: tfSubError,
+ tfJSON: tfJSON,
+ getValueTypeName: getValueTypeName
+}
- // txHash
- } else {
- prevOutHash = prevTx
- }
+},{"./native":110,"inherits":93}],108:[function(require,module,exports){
+(function (Buffer){
+var NATIVE = require('./native')
+var ERRORS = require('./errors')
- var input = {}
- if (prevOutScript) {
- var prevOutType = scripts.classifyOutput(prevOutScript)
+function _Buffer (value) {
+ return Buffer.isBuffer(value)
+}
- // if we can, extract pubKey information
- switch (prevOutType) {
- case 'multisig': {
- input.pubKeys = prevOutScript.chunks.slice(1, -2).map(ECPubKey.fromBuffer)
- break
- }
+function Hex (value) {
+ return typeof value === 'string' && /^([0-9a-f]{2})+$/i.test(value)
+}
- case 'pubkey': {
- input.pubKeys = prevOutScript.chunks.slice(0, 1).map(ECPubKey.fromBuffer)
- break
- }
- }
+function _LengthN (type, length) {
+ var name = type.toJSON()
- if (prevOutType !== 'scripthash') {
- input.scriptType = prevOutType
- }
+ function Length (value) {
+ if (!type(value)) return false
+ if (value.length === length) return true
- input.prevOutScript = prevOutScript
- input.prevOutType = prevOutType
+ throw ERRORS.tfCustomError(name + '(Length: ' + length + ')', name + '(Length: ' + value.length + ')')
}
+ Length.toJSON = function () { return name }
- assert(this.inputs.every(function (input2) {
- if (input2.hashType === undefined) return true
+ return Length
+}
- return input2.hashType & Transaction.SIGHASH_ANYONECANPAY
- }), 'No, this would invalidate signatures')
+var _ArrayN = _LengthN.bind(null, NATIVE.Array)
+var _BufferN = _LengthN.bind(null, _Buffer)
+var _HexN = _LengthN.bind(null, Hex)
- var prevOut = prevOutHash.toString('hex') + ':' + index
- assert(!(prevOut in this.prevTxMap), 'Transaction is already an input')
+var UINT53_MAX = Math.pow(2, 53) - 1
- var vin = this.tx.addInput(prevOutHash, index, sequence)
- this.inputs[vin] = input
- this.prevTxMap[prevOut] = vin
+function Finite (value) {
+ return typeof value === 'number' && isFinite(value)
+}
+function Int8 (value) { return ((value << 24) >> 24) === value }
+function Int16 (value) { return ((value << 16) >> 16) === value }
+function Int32 (value) { return (value | 0) === value }
+function UInt8 (value) { return (value & 0xff) === value }
+function UInt16 (value) { return (value & 0xffff) === value }
+function UInt32 (value) { return (value >>> 0) === value }
+function UInt53 (value) {
+ return typeof value === 'number' &&
+ value >= 0 &&
+ value <= UINT53_MAX &&
+ Math.floor(value) === value
+}
- return vin
+var types = {
+ ArrayN: _ArrayN,
+ Buffer: _Buffer,
+ BufferN: _BufferN,
+ Finite: Finite,
+ Hex: Hex,
+ HexN: _HexN,
+ Int8: Int8,
+ Int16: Int16,
+ Int32: Int32,
+ UInt8: UInt8,
+ UInt16: UInt16,
+ UInt32: UInt32,
+ UInt53: UInt53
}
-TransactionBuilder.prototype.addOutput = function (scriptPubKey, value) {
- assert(this.inputs.every(function (input) {
- if (input.hashType === undefined) return true
+for (var typeName in types) {
+ types[typeName].toJSON = function (t) {
+ return t
+ }.bind(null, typeName)
+}
- return (input.hashType & 0x1f) === Transaction.SIGHASH_SINGLE
- }), 'No, this would invalidate signatures')
+module.exports = types
- return this.tx.addOutput(scriptPubKey, value)
-}
+}).call(this,{"isBuffer":require("../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js")})
+},{"../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js":9,"./errors":107,"./native":110}],109:[function(require,module,exports){
+var ERRORS = require('./errors')
+var NATIVE = require('./native')
-TransactionBuilder.prototype.build = function () {
- return this.__build(false)
-}
-TransactionBuilder.prototype.buildIncomplete = function () {
- return this.__build(true)
-}
+// short-hand
+var tfJSON = ERRORS.tfJSON
+var TfTypeError = ERRORS.TfTypeError
+var TfPropertyTypeError = ERRORS.TfPropertyTypeError
+var tfSubError = ERRORS.tfSubError
+var getValueTypeName = ERRORS.getValueTypeName
-var canSignTypes = {
- 'pubkeyhash': true,
- 'multisig': true,
- 'pubkey': true
-}
+var TYPES = {
+ arrayOf: function arrayOf (type) {
+ type = compile(type)
-TransactionBuilder.prototype.__build = function (allowIncomplete) {
- if (!allowIncomplete) {
- assert(this.tx.ins.length > 0, 'Transaction has no inputs')
- assert(this.tx.outs.length > 0, 'Transaction has no outputs')
- }
+ function _arrayOf (array, strict) {
+ if (!NATIVE.Array(array)) return false
- var tx = this.tx.clone()
+ return array.every(function (value, i) {
+ try {
+ return typeforce(type, value, strict)
+ } catch (e) {
+ throw tfSubError(e, i)
+ }
+ })
+ }
+ _arrayOf.toJSON = function () { return '[' + tfJSON(type) + ']' }
- // Create script signatures from signature meta-data
- this.inputs.forEach(function (input, index) {
- var scriptType = input.scriptType
- var scriptSig
+ return _arrayOf
+ },
- if (!allowIncomplete) {
- assert(!!scriptType, 'Transaction is not complete')
- assert(scriptType in canSignTypes, scriptType + ' not supported')
- assert(input.signatures, 'Transaction is missing signatures')
+ maybe: function maybe (type) {
+ type = compile(type)
+
+ function _maybe (value, strict) {
+ return NATIVE.Nil(value) || type(value, strict, maybe)
}
+ _maybe.toJSON = function () { return '?' + tfJSON(type) }
- if (input.signatures) {
- switch (scriptType) {
- case 'pubkeyhash': {
- var pkhSignature = input.signatures[0].toScriptSignature(input.hashType)
- scriptSig = scripts.pubKeyHashInput(pkhSignature, input.pubKeys[0])
- break
- }
+ return _maybe
+ },
- case 'multisig': {
- // Array.prototype.map is sparse-compatible
- var msSignatures = input.signatures.map(function (signature) {
- return signature && signature.toScriptSignature(input.hashType)
- })
+ map: function map (propertyType, propertyKeyType) {
+ propertyType = compile(propertyType)
+ if (propertyKeyType) propertyKeyType = compile(propertyKeyType)
- // fill in blanks with OP_0
- if (allowIncomplete) {
- for (var i = 0; i < msSignatures.length; ++i) {
- if (msSignatures[i]) continue
+ function _map (value, strict) {
+ if (!NATIVE.Object(value, strict)) return false
+ if (NATIVE.Nil(value, strict)) return false
- msSignatures[i] = ops.OP_0
- }
- } else {
- // Array.prototype.filter returns non-sparse array
- msSignatures = msSignatures.filter(function (x) { return x })
+ for (var propertyName in value) {
+ try {
+ if (propertyKeyType) {
+ typeforce(propertyKeyType, propertyName, strict)
}
-
- var redeemScript = allowIncomplete ? undefined : input.redeemScript
- scriptSig = scripts.multisigInput(msSignatures, redeemScript)
- break
+ } catch (e) {
+ throw tfSubError(e, propertyName, 'key')
}
- case 'pubkey': {
- var pkSignature = input.signatures[0].toScriptSignature(input.hashType)
- scriptSig = scripts.pubKeyInput(pkSignature)
- break
+ try {
+ var propertyValue = value[propertyName]
+ typeforce(propertyType, propertyValue, strict)
+ } catch (e) {
+ throw tfSubError(e, propertyName)
}
}
+
+ return true
}
- // did we build a scriptSig?
- if (scriptSig) {
- // wrap as scriptHash if necessary
- if (input.prevOutType === 'scripthash') {
- scriptSig = scripts.scriptHashInput(scriptSig, input.redeemScript)
+ if (propertyKeyType) {
+ _map.toJSON = function () {
+ return '{' + tfJSON(propertyKeyType) + ': ' + tfJSON(propertyType) + '}'
}
-
- tx.setInputScript(index, scriptSig)
+ } else {
+ _map.toJSON = function () { return '{' + tfJSON(propertyType) + '}' }
}
- })
-
- return tx
-}
-TransactionBuilder.prototype.sign = function (index, privKey, redeemScript, hashType) {
- assert(index in this.inputs, 'No input at index: ' + index)
- hashType = hashType || Transaction.SIGHASH_ALL
+ return _map
+ },
- var input = this.inputs[index]
- var canSign = input.hashType &&
- input.prevOutScript &&
- input.prevOutType &&
- input.pubKeys &&
- input.scriptType &&
- input.signatures
+ object: function object (uncompiled) {
+ var type = {}
- // are we almost ready to sign?
- if (canSign) {
- // if redeemScript was provided, enforce consistency
- if (redeemScript) {
- assert.deepEqual(input.redeemScript, redeemScript, 'Inconsistent redeemScript')
+ for (var typePropertyName in uncompiled) {
+ type[typePropertyName] = compile(uncompiled[typePropertyName])
}
- assert.equal(input.hashType, hashType, 'Inconsistent hashType')
-
- // no? prepare
- } else {
- // must be pay-to-scriptHash?
- if (redeemScript) {
- // if we have a prevOutScript, enforce scriptHash equality to the redeemScript
- if (input.prevOutScript) {
- assert.equal(input.prevOutType, 'scripthash', 'PrevOutScript must be P2SH')
+ function _object (value, strict) {
+ if (!NATIVE.Object(value)) return false
+ if (NATIVE.Nil(value)) return false
- var scriptHash = input.prevOutScript.chunks[1]
- assert.deepEqual(scriptHash, redeemScript.getHash(), 'RedeemScript does not match ' + scriptHash.toString('hex'))
- }
+ var propertyName
- var scriptType = scripts.classifyOutput(redeemScript)
- assert(scriptType in canSignTypes, 'RedeemScript not supported (' + scriptType + ')')
+ try {
+ for (propertyName in type) {
+ var propertyType = type[propertyName]
+ var propertyValue = value[propertyName]
- var pubKeys = []
- switch (scriptType) {
- case 'multisig': {
- pubKeys = redeemScript.chunks.slice(1, -2).map(ECPubKey.fromBuffer)
- break
+ typeforce(propertyType, propertyValue, strict)
}
+ } catch (e) {
+ throw tfSubError(e, propertyName)
+ }
- case 'pubkeyhash': {
- var pkh1 = redeemScript.chunks[2]
- var pkh2 = privKey.pub.getAddress().hash
-
- assert.deepEqual(pkh1, pkh2, 'privateKey cannot sign for this input')
- pubKeys = [privKey.pub]
- break
- }
+ if (strict) {
+ for (propertyName in value) {
+ if (type[propertyName]) continue
- case 'pubkey': {
- pubKeys = redeemScript.chunks.slice(0, 1).map(ECPubKey.fromBuffer)
- break
+ throw new TfPropertyTypeError(undefined, propertyName)
}
}
- if (!input.prevOutScript) {
- input.prevOutScript = scripts.scriptHashOutput(redeemScript.getHash())
- input.prevOutType = 'scripthash'
- }
-
- input.pubKeys = pubKeys
- input.redeemScript = redeemScript
- input.scriptType = scriptType
+ return true
+ }
+ _object.toJSON = function () { return tfJSON(type) }
- // cannot be pay-to-scriptHash
- } else {
- assert.notEqual(input.prevOutType, 'scripthash', 'PrevOutScript is P2SH, missing redeemScript')
+ return _object
+ },
- // can we otherwise sign this?
- if (input.scriptType) {
- assert(input.pubKeys, input.scriptType + ' not supported')
+ oneOf: function oneOf () {
+ var types = [].slice.call(arguments).map(compile)
- // we know nothin' Jon Snow, assume pubKeyHash
- } else {
- input.prevOutScript = privKey.pub.getAddress().toOutputScript()
- input.prevOutType = 'pubkeyhash'
- input.pubKeys = [privKey.pub]
- input.scriptType = input.prevOutType
- }
+ function _oneOf (value, strict) {
+ return types.some(function (type) {
+ try {
+ return typeforce(type, value, strict)
+ } catch (e) {
+ return false
+ }
+ })
}
+ _oneOf.toJSON = function () { return types.map(tfJSON).join('|') }
- input.hashType = hashType
- input.signatures = input.signatures || []
- }
+ return _oneOf
+ },
- var signatureScript = input.redeemScript || input.prevOutScript
- var signatureHash = this.tx.hashForSignature(index, signatureScript, hashType)
+ quacksLike: function quacksLike (type) {
+ function _quacksLike (value) {
+ return type === getValueTypeName(value)
+ }
+ _quacksLike.toJSON = function () { return type }
- // enforce signature order matches public keys
- if (input.scriptType === 'multisig' && input.redeemScript && input.signatures.length !== input.pubKeys.length) {
- // maintain a local copy of unmatched signatures
- var unmatched = input.signatures.slice()
+ return _quacksLike
+ },
- input.signatures = input.pubKeys.map(function (pubKey) {
- var match
+ tuple: function tuple () {
+ var types = [].slice.call(arguments).map(compile)
- // check for any matching signatures
- unmatched.some(function (signature, i) {
- if (!pubKey.verify(signatureHash, signature)) return false
- match = signature
+ function _tuple (values, strict) {
+ return types.every(function (type, i) {
+ try {
+ return typeforce(type, values[i], strict)
+ } catch (e) {
+ throw tfSubError(e, i)
+ }
+ }) && (!strict || values.length === arguments.length)
+ }
+ _tuple.toJSON = function () { return '(' + types.map(tfJSON).join(', ') + ')' }
- // remove matched signature from unmatched
- unmatched.splice(i, 1)
+ return _tuple
+ },
- return true
- })
+ value: function value (expected) {
+ function _value (actual) {
+ return actual === expected
+ }
+ _value.toJSON = function () { return expected }
- return match || undefined
- })
+ return _value
}
-
- // enforce in order signing of public keys
- assert(input.pubKeys.some(function (pubKey, i) {
- if (!privKey.pub.Q.equals(pubKey.Q)) return false
-
- assert(!input.signatures[i], 'Signature already exists')
- var signature = privKey.sign(signatureHash)
- input.signatures[i] = signature
-
- return true
- }, this), 'privateKey cannot sign for this input')
}
-module.exports = TransactionBuilder
-
-}).call(this,require("buffer").Buffer)
-},{"./ecpubkey":61,"./ecsignature":62,"./opcodes":67,"./script":68,"./scripts":69,"./transaction":70,"assert":5,"buffer":7}],72:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var bufferutils = require('./bufferutils')
-var typeForce = require('typeforce')
-var networks = require('./networks')
-var randomBytes = require('randombytes')
-
-var Address = require('./address')
-var HDNode = require('./hdnode')
-var TransactionBuilder = require('./transaction_builder')
-var Script = require('./script')
+function compile (type) {
+ if (NATIVE.String(type)) {
+ if (type[0] === '?') return TYPES.maybe(compile(type.slice(1)))
-function Wallet (seed, network) {
- console.warn('Wallet is deprecated and will be removed in 2.0.0, see #296')
+ return NATIVE[type] || TYPES.quacksLike(type)
+ } else if (type && NATIVE.Object(type)) {
+ if (NATIVE.Array(type)) return TYPES.arrayOf(compile(type[0]))
- seed = seed || randomBytes(32)
- network = network || networks.bitcoin
-
- // Stored in a closure to make accidental serialization less likely
- var masterKey = HDNode.fromSeedBuffer(seed, network)
-
- // HD first-level child derivation method should be hardened
- // See https://bitcointalk.org/index.php?topic=405179.msg4415254#msg4415254
- var accountZero = masterKey.deriveHardened(0)
- var externalAccount = accountZero.derive(0)
- var internalAccount = accountZero.derive(1)
-
- this.addresses = []
- this.changeAddresses = []
- this.network = network
- this.unspents = []
-
- // FIXME: remove in 2.0.0
- this.unspentMap = {}
-
- // FIXME: remove in 2.0.0
- var me = this
- this.newMasterKey = function (seed) {
- console.warn('newMasterKey is deprecated, please make a new Wallet instance instead')
-
- seed = seed || randomBytes(32)
- masterKey = HDNode.fromSeedBuffer(seed, network)
-
- accountZero = masterKey.deriveHardened(0)
- externalAccount = accountZero.derive(0)
- internalAccount = accountZero.derive(1)
-
- me.addresses = []
- me.changeAddresses = []
-
- me.unspents = []
- me.unspentMap = {}
+ return TYPES.object(type)
+ } else if (NATIVE.Function(type)) {
+ return type
}
- this.getMasterKey = function () {
- return masterKey
- }
- this.getAccountZero = function () {
- return accountZero
- }
- this.getExternalAccount = function () {
- return externalAccount
- }
- this.getInternalAccount = function () {
- return internalAccount
- }
+ return TYPES.value(type)
}
-Wallet.prototype.createTransaction = function (to, value, options) {
- // FIXME: remove in 2.0.0
- if (typeof options !== 'object') {
- if (options !== undefined) {
- console.warn('Non options object parameters are deprecated, use options object instead')
-
- options = {
- fixedFee: arguments[2],
- changeAddress: arguments[3]
- }
- }
- }
-
- options = options || {}
-
- assert(value > this.network.dustThreshold, value + ' must be above dust threshold (' + this.network.dustThreshold + ' Satoshis)')
-
- var changeAddress = options.changeAddress
- var fixedFee = options.fixedFee
- var minConf = options.minConf === undefined ? 0 : options.minConf // FIXME: change minConf:1 by default in 2.0.0
-
- // filter by minConf, then pending and sort by descending value
- var unspents = this.unspents.filter(function (unspent) {
- return unspent.confirmations >= minConf
- }).filter(function (unspent) {
- return !unspent.pending
- }).sort(function (o1, o2) {
- return o2.value - o1.value
- })
-
- var accum = 0
- var addresses = []
- var subTotal = value
-
- var txb = new TransactionBuilder()
- txb.addOutput(to, value)
-
- for (var i = 0; i < unspents.length; ++i) {
- var unspent = unspents[i]
- addresses.push(unspent.address)
-
- txb.addInput(unspent.txHash, unspent.index)
-
- var fee = fixedFee === undefined ? estimatePaddedFee(txb.buildIncomplete(), this.network) : fixedFee
-
- accum += unspent.value
- subTotal = value + fee
-
- if (accum >= subTotal) {
- var change = accum - subTotal
-
- if (change > this.network.dustThreshold) {
- txb.addOutput(changeAddress || this.getChangeAddress(), change)
- }
+function typeforce (type, value, strict, surrogate) {
+ if (NATIVE.Function(type)) {
+ if (type(value, strict)) return true
- break
- }
+ throw new TfTypeError(surrogate || type, value)
}
- assert(accum >= subTotal, 'Not enough funds (incl. fee): ' + accum + ' < ' + subTotal)
+ // JIT
+ return typeforce(compile(type), value, strict)
+}
- return this.signWith(txb, addresses).build()
+// assign types to typeforce function
+for (var typeName in NATIVE) {
+ typeforce[typeName] = NATIVE[typeName]
}
-// FIXME: remove in 2.0.0
-Wallet.prototype.processPendingTx = function (tx) {
- this.__processTx(tx, true)
+for (typeName in TYPES) {
+ typeforce[typeName] = TYPES[typeName]
}
-// FIXME: remove in 2.0.0
-Wallet.prototype.processConfirmedTx = function (tx) {
- this.__processTx(tx, false)
+var EXTRA = require('./extra')
+for (typeName in EXTRA) {
+ typeforce[typeName] = EXTRA[typeName]
}
-// FIXME: remove in 2.0.0
-Wallet.prototype.__processTx = function (tx, isPending) {
- console.warn('processTransaction is considered harmful, see issue #260 for more information')
+// async wrapper
+function __async (type, value, strict, callback) {
+ // default to falsy strict if using shorthand overload
+ if (typeof strict === 'function') return __async(type, value, false, strict)
- var txId = tx.getId()
- var txHash = tx.getHash()
+ try {
+ typeforce(type, value, strict)
+ } catch (e) {
+ return callback(e)
+ }
- tx.outs.forEach(function (txOut, i) {
- var address
+ callback()
+}
- try {
- address = Address.fromOutputScript(txOut.script, this.network).toString()
- } catch (e) {
- if (!(e.message.match(/has no matching Address/)))
- throw e
- }
+typeforce.async = __async
+typeforce.compile = compile
+typeforce.TfTypeError = TfTypeError
+typeforce.TfPropertyTypeError = TfPropertyTypeError
- var myAddresses = this.addresses.concat(this.changeAddresses)
- if (myAddresses.indexOf(address) > -1) {
- var lookup = txId + ':' + i
- if (lookup in this.unspentMap) return
+module.exports = typeforce
- // its unique, add it
- var unspent = {
- address: address,
- confirmations: 0, // no way to determine this without more information
- index: i,
- txHash: txHash,
- txId: txId,
- value: txOut.value,
- pending: isPending
- }
+},{"./errors":107,"./extra":108,"./native":110}],110:[function(require,module,exports){
+var types = {
+ Array: function (value) { return value !== null && value !== undefined && value.constructor === Array },
+ Boolean: function (value) { return typeof value === 'boolean' },
+ Function: function (value) { return typeof value === 'function' },
+ Nil: function (value) { return value === undefined || value === null },
+ Number: function (value) { return typeof value === 'number' },
+ Object: function (value) { return typeof value === 'object' },
+ String: function (value) { return typeof value === 'string' },
+ '': function () { return true }
+}
- this.unspentMap[lookup] = unspent
- this.unspents.push(unspent)
- }
- }, this)
+// TODO: deprecate
+types.Null = types.Nil
- tx.ins.forEach(function (txIn) {
- // copy and convert to big-endian hex
- var txInId = bufferutils.reverse(txIn.hash).toString('hex')
+for (var typeName in types) {
+ types[typeName].toJSON = function (t) {
+ return t
+ }.bind(null, typeName)
+}
- var lookup = txInId + ':' + txIn.index
- if (!(lookup in this.unspentMap)) return
+module.exports = types
- var unspent = this.unspentMap[lookup]
+},{}],111:[function(require,module,exports){
+(function (Buffer){
+'use strict'
- if (isPending) {
- unspent.pending = true
- unspent.spent = true
- } else {
- delete this.unspentMap[lookup]
+// Number.MAX_SAFE_INTEGER
+var MAX_SAFE_INTEGER = 9007199254740991
- this.unspents = this.unspents.filter(function (unspent2) {
- return unspent !== unspent2
- })
- }
- }, this)
+function checkUInt53 (n) {
+ if (n < 0 || n > MAX_SAFE_INTEGER || n % 1 !== 0) throw new RangeError('value out of range')
}
-Wallet.prototype.generateAddress = function () {
- var k = this.addresses.length
- var address = this.getExternalAccount().derive(k).getAddress()
+function encode (number, buffer, offset) {
+ checkUInt53(number)
- this.addresses.push(address.toString())
-
- return this.getReceiveAddress()
-}
+ if (!buffer) buffer = new Buffer(encodingLength(number))
+ if (!Buffer.isBuffer(buffer)) throw new TypeError('buffer must be a Buffer instance')
+ if (!offset) offset = 0
-Wallet.prototype.generateChangeAddress = function () {
- var k = this.changeAddresses.length
- var address = this.getInternalAccount().derive(k).getAddress()
+ // 8 bit
+ if (number < 0xfd) {
+ buffer.writeUInt8(number, offset)
+ encode.bytes = 1
- this.changeAddresses.push(address.toString())
+ // 16 bit
+ } else if (number <= 0xffff) {
+ buffer.writeUInt8(0xfd, offset)
+ buffer.writeUInt16LE(number, offset + 1)
+ encode.bytes = 3
- return this.getChangeAddress()
-}
+ // 32 bit
+ } else if (number <= 0xffffffff) {
+ buffer.writeUInt8(0xfe, offset)
+ buffer.writeUInt32LE(number, offset + 1)
+ encode.bytes = 5
-Wallet.prototype.getAddress = function () {
- if (this.addresses.length === 0) {
- this.generateAddress()
+ // 64 bit
+ } else {
+ buffer.writeUInt8(0xff, offset)
+ buffer.writeUInt32LE(number >>> 0, offset + 1)
+ buffer.writeUInt32LE((number / 0x100000000) | 0, offset + 5)
+ encode.bytes = 9
}
- return this.addresses[this.addresses.length - 1]
-}
-
-Wallet.prototype.getBalance = function (minConf) {
- minConf = minConf || 0
-
- return this.unspents.filter(function (unspent) {
- return unspent.confirmations >= minConf
-
- // FIXME: remove spent filter in 2.0.0
- }).filter(function (unspent) {
- return !unspent.spent
- }).reduce(function (accum, unspent) {
- return accum + unspent.value
- }, 0)
+ return buffer
}
-Wallet.prototype.getChangeAddress = function () {
- if (this.changeAddresses.length === 0) {
- this.generateChangeAddress()
- }
+function decode (buffer, offset) {
+ if (!Buffer.isBuffer(buffer)) throw new TypeError('buffer must be a Buffer instance')
+ if (!offset) offset = 0
- return this.changeAddresses[this.changeAddresses.length - 1]
-}
+ var first = buffer.readUInt8(offset)
-Wallet.prototype.getInternalPrivateKey = function (index) {
- return this.getInternalAccount().derive(index).privKey
-}
+ // 8 bit
+ if (first < 0xfd) {
+ decode.bytes = 1
+ return first
-Wallet.prototype.getPrivateKey = function (index) {
- return this.getExternalAccount().derive(index).privKey
-}
+ // 16 bit
+ } else if (first === 0xfd) {
+ decode.bytes = 3
+ return buffer.readUInt16LE(offset + 1)
-Wallet.prototype.getPrivateKeyForAddress = function (address) {
- var index
+ // 32 bit
+ } else if (first === 0xfe) {
+ decode.bytes = 5
+ return buffer.readUInt32LE(offset + 1)
- if ((index = this.addresses.indexOf(address)) > -1) {
- return this.getPrivateKey(index)
- }
+ // 64 bit
+ } else {
+ decode.bytes = 9
+ var lo = buffer.readUInt32LE(offset + 1)
+ var hi = buffer.readUInt32LE(offset + 5)
+ var number = hi * 0x0100000000 + lo
+ checkUInt53(number)
- if ((index = this.changeAddresses.indexOf(address)) > -1) {
- return this.getInternalPrivateKey(index)
+ return number
}
-
- assert(false, 'Unknown address. Make sure the address is from the keychain and has been generated')
}
-Wallet.prototype.getUnspentOutputs = function (minConf) {
- minConf = minConf || 0
-
- return this.unspents.filter(function (unspent) {
- return unspent.confirmations >= minConf
-
- // FIXME: remove spent filter in 2.0.0
- }).filter(function (unspent) {
- return !unspent.spent
- }).map(function (unspent) {
- return {
- address: unspent.address,
- confirmations: unspent.confirmations,
- index: unspent.index,
- txId: unspent.txId,
- value: unspent.value,
+function encodingLength (number) {
+ checkUInt53(number)
- // FIXME: remove in 2.0.0
- hash: unspent.txId,
- pending: unspent.pending
- }
- })
+ return (
+ number < 0xfd ? 1
+ : number <= 0xffff ? 3
+ : number <= 0xffffffff ? 5
+ : 9
+ )
}
-Wallet.prototype.setUnspentOutputs = function (unspents) {
- this.unspentMap = {}
- this.unspents = unspents.map(function (unspent) {
- // FIXME: remove unspent.hash in 2.0.0
- var txId = unspent.txId || unspent.hash
- var index = unspent.index
-
- // FIXME: remove in 2.0.0
- if (unspent.hash !== undefined) {
- console.warn('unspent.hash is deprecated, use unspent.txId instead')
- }
-
- // FIXME: remove in 2.0.0
- if (index === undefined) {
- console.warn('unspent.outputIndex is deprecated, use unspent.index instead')
- index = unspent.outputIndex
- }
+module.exports = { encode: encode, decode: decode, encodingLength: encodingLength }
- typeForce('String', txId)
- typeForce('Number', index)
- typeForce('Number', unspent.value)
+}).call(this,require("buffer").Buffer)
+},{"buffer":4}],112:[function(require,module,exports){
+(function (Buffer){
+var bs58check = require('bs58check')
- assert.equal(txId.length, 64, 'Expected valid txId, got ' + txId)
- assert.doesNotThrow(function () {
- Address.fromBase58Check(unspent.address)
- }, 'Expected Base58 Address, got ' + unspent.address)
- assert(isFinite(index), 'Expected finite index, got ' + index)
+function decodeRaw (buffer, version) {
+ // check version only if defined
+ if (version !== undefined && buffer[0] !== version) throw new Error('Invalid network version')
- // FIXME: remove branch in 2.0.0
- if (unspent.confirmations !== undefined) {
- typeForce('Number', unspent.confirmations)
+ // uncompressed
+ if (buffer.length === 33) {
+ return {
+ version: buffer[0],
+ privateKey: buffer.slice(1, 33),
+ compressed: false
}
+ }
- var txHash = bufferutils.reverse(new Buffer(txId, 'hex'))
+ // invalid length
+ if (buffer.length !== 34) throw new Error('Invalid WIF length')
- unspent = {
- address: unspent.address,
- confirmations: unspent.confirmations || 0,
- index: index,
- txHash: txHash,
- txId: txId,
- value: unspent.value,
+ // invalid compression flag
+ if (buffer[33] !== 0x01) throw new Error('Invalid compression flag')
- // FIXME: remove in 2.0.0
- pending: unspent.pending || false
- }
+ return {
+ version: buffer[0],
+ privateKey: buffer.slice(1, 33),
+ compressed: true
+ }
+}
- // FIXME: remove in 2.0.0
- this.unspentMap[txId + ':' + index] = unspent
+function encodeRaw (version, privateKey, compressed) {
+ var result = new Buffer(compressed ? 34 : 33)
- return unspent
- }, this)
-}
+ result.writeUInt8(version, 0)
+ privateKey.copy(result, 1)
-Wallet.prototype.signWith = function (tx, addresses) {
- addresses.forEach(function (address, i) {
- var privKey = this.getPrivateKeyForAddress(address)
+ if (compressed) {
+ result[33] = 0x01
+ }
- tx.sign(i, privKey)
- }, this)
+ return result
+}
- return tx
+function decode (string, version) {
+ return decodeRaw(bs58check.decode(string), version)
}
-function estimatePaddedFee (tx, network) {
- var tmpTx = tx.clone()
- tmpTx.addOutput(Script.EMPTY, network.dustSoftThreshold || 0)
+function encode (version, privateKey, compressed) {
+ if (typeof version === 'number') return bs58check.encode(encodeRaw(version, privateKey, compressed))
- return network.estimateFee(tmpTx)
+ return bs58check.encode(
+ encodeRaw(
+ version.version,
+ version.privateKey,
+ version.compressed
+ )
+ )
}
-// FIXME: 1.0.0 shims, remove in 2.0.0
-Wallet.prototype.getReceiveAddress = Wallet.prototype.getAddress
-Wallet.prototype.createTx = Wallet.prototype.createTransaction
-
-module.exports = Wallet
+module.exports = {
+ decode: decode,
+ decodeRaw: decodeRaw,
+ encode: encode,
+ encodeRaw: encodeRaw
+}
}).call(this,require("buffer").Buffer)
-},{"./address":54,"./bufferutils":57,"./hdnode":63,"./networks":66,"./script":68,"./transaction_builder":71,"assert":5,"buffer":7,"randombytes":52,"typeforce":53}]},{},[64])(64)
+},{"bs58check":80,"buffer":4}]},{},[33])(33)
});</script>
- <script>bitcoin.networks.shadow = {
- magicPrefix: '\x19ShadowCash Signed Message:\n',
+ <script>bitcoinjs.bitcoin.networks.shadow = {
+ messagePrefix: "unused",
bip32: {
public: 0xEE80286A,
private: 0xEE8031E8
pubKeyHash: 0x3f,
scriptHash: 0x7d,
wif: 0xbf,
- dustThreshold: 0,
- feePerKb: 1000,
- estimateFee: function() { return "unused in this app" },
};
-bitcoin.networks.shadowtn = {
- magicPrefix: '\x19ShadowCash Signed Message:\n',
+bitcoinjs.bitcoin.networks.shadowtn = {
+ messagePrefix: "unused",
bip32: {
public: 0x76C0FDFB,
private: 0x76C1077A
pubKeyHash: 0x7f,
scriptHash: 0xc4,
wif: 0xff,
- dustThreshold: 0,
- feePerKb: 1000,
- estimateFee: function() { return "unused in this app" },
};
-bitcoin.networks.clam = {
+bitcoinjs.bitcoin.networks.clam = {
+ messagePrefix: "unused",
bip32: {
public: 0xa8c26d64,
private: 0xa8c17826
},
pubKeyHash: 0x89,
+ scriptHash: 0x00, // TODO set this correctly
wif: 0x85,
};
-bitcoin.networks.dash = {
+bitcoinjs.bitcoin.networks.crown = {
+ messagePrefix: "unused",
+ bip32: {
+ public: 0x0488b21e,
+ private: 0x0488ade4
+ },
+ pubKeyHash: 0x00,
+ scriptHash: 0x05,
+ wif: 0x80,
+};
+
+bitcoinjs.bitcoin.networks.dash = {
+ messagePrefix: "unused",
bip32: {
public: 0x0488b21e,
private: 0x0488ade4
wif: 0xcc,
};
-bitcoin.networks.game = {
+bitcoinjs.bitcoin.networks.dashtn = {
+ messagePrefix: "unused",
+ bip32: {
+ public: 0x043587cf,
+ private: 0x04358394
+ },
+ pubKeyHash: 0x8c,
+ scriptHash: 0x13,
+ wif: 0xef,
+};
+
+bitcoinjs.bitcoin.networks.game = {
+ messagePrefix: "unused",
bip32: {
public: 0x0488b21e,
private: 0x0488ade4
wif: 0xa6,
};
-bitcoin.networks.namecoin = {
+bitcoinjs.bitcoin.networks.namecoin = {
+ messagePrefix: "unused",
bip32: {
public: 0x0488b21e,
private: 0x0488ade4
},
pubKeyHash: 0x34,
- //scriptHash: 0x10,
+ scriptHash: 0x00, // TODO set this correctly
wif: 0x80,
};
-bitcoin.networks.peercoin = {
+bitcoinjs.bitcoin.networks.peercoin = {
+ messagePrefix: "unused",
bip32: {
public: 0x0488b21e,
private: 0x0488ade4
},
pubKeyHash: 0x37,
- //scriptHash: 0x10,
+ scriptHash: 0x00, // TODO set this correctly
wif: 0xb7,
};
-bitcoin.networks.slimcoin = {
+bitcoinjs.bitcoin.networks.slimcoin = {
+ messagePrefix: "unused",
bip32: {
public: 0xef6adf10,
private: 0xef69ea80
wif: 0x46,
};
-bitcoin.networks.slimcointn = {
+bitcoinjs.bitcoin.networks.slimcointn = {
+ messagePrefix: "unused",
bip32: {
public: 0x043587CF,
private: 0x04358394
wif: 0x57,
};
+bitcoinjs.bitcoin.networks.dogecoin = {
+ messagePrefix: '\x19Dogecoin Signed Message:\n',
+ bip32: {
+ public: 0x02facafd,
+ private: 0x02fac398
+ },
+ pubKeyHash: 0x1e,
+ scriptHash: 0x16,
+ wif: 0x9e,
+},
+
+bitcoinjs.bitcoin.networks.viacoin = {
+ messagePrefix: '\x18Viacoin Signed Message:\n',
+ bip32: {
+ public: 0x0488b21e,
+ private: 0x0488ade4
+ },
+ pubKeyHash: 0x47,
+ scriptHash: 0x21,
+ wif: 0xc7,
+},
+
+bitcoinjs.bitcoin.networks.viacointestnet = {
+ messagePrefix: '\x18Viacoin Signed Message:\n',
+ bip32: {
+ public: 0x043587cf,
+ private: 0x04358394
+ },
+ pubKeyHash: 0x7f,
+ scriptHash: 0xc4,
+ wif: 0xff,
+},
+
+bitcoinjs.bitcoin.networks.gamerscoin = {
+ messagePrefix: '\x19Gamerscoin Signed Message:\n',
+ bip32: {
+ public: 0x019da462,
+ private: 0x019d9cfe
+ },
+ pubKeyHash: 0x26,
+ scriptHash: 0x05,
+ wif: 0xA6,
+},
+
+bitcoinjs.bitcoin.networks.jumbucks = {
+ messagePrefix: '\x19Jumbucks Signed Message:\n',
+ bip32: {
+ public: 0x037a689a,
+ private: 0x037a6460
+ },
+ pubKeyHash: 0x2b,
+ scriptHash: 0x05,
+ wif: 0xab,
+},
+
+bitcoinjs.bitcoin.networks.zetacoin = {
+ messagePrefix: '\x18Zetacoin Signed Message:\n',
+ bip32: {
+ public: 0x0488b21e,
+ private: 0x0488ade4
+ },
+ pubKeyHash: 0x50,
+ scriptHash: 0x09,
+ wif: 0xe0,
+}
</script>
<script>(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.ethUtil = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
(function (global){
},{"is-hex-prefixed":64}]},{},[31])(31)
});</script>
+ <script>function convertRippleAdrr(address) {
+ return window.basex('rpshnaf39wBUDNEGHJKLM4PQRST7VWXYZ2bcdeCg65jkm8oFqi1tuvAxyz').encode(
+ window.basex('123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz').decode(address)
+ )
+ }
+
+function convertRipplePriv(priv) {
+ return window.basex('123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz').decode(priv).toString("hex").slice(2,66)
+}
+
+</script>
<script>// Select components from sjcl to suit the crypto operations bip39 requires.
//// base.js
var seed = null;
var bip32RootKey = null;
var bip32ExtendedKey = null;
- var network = bitcoin.networks.bitcoin;
+ var network = bitcoinjs.bitcoin.networks.bitcoin;
var addressRowTemplate = $("#address-row-template");
var showIndex = true;
DOM.entropy = $(".entropy");
DOM.entropyFiltered = DOM.entropyContainer.find(".filtered");
DOM.entropyType = DOM.entropyContainer.find(".type");
- DOM.entropyStrength = DOM.entropyContainer.find(".strength");
+ DOM.entropyCrackTime = DOM.entropyContainer.find(".crack-time");
DOM.entropyEventCount = DOM.entropyContainer.find(".event-count");
DOM.entropyBits = DOM.entropyContainer.find(".bits");
DOM.entropyBitsPerEvent = DOM.entropyContainer.find(".bits-per-event");
DOM.extendedPubKey = $(".extended-pub-key");
DOM.bip32tab = $("#bip32-tab");
DOM.bip44tab = $("#bip44-tab");
+ DOM.bip49tab = $("#bip49-tab");
DOM.bip32panel = $("#bip32");
DOM.bip44panel = $("#bip44");
+ DOM.bip49panel = $("#bip49");
DOM.bip32path = $("#bip32-path");
DOM.bip44path = $("#bip44-path");
DOM.bip44purpose = $("#bip44 .purpose");
DOM.bip44accountXprv = $("#bip44 .account-xprv");
DOM.bip44accountXpub = $("#bip44 .account-xpub");
DOM.bip44change = $("#bip44 .change");
+ DOM.bip49unavailable = $("#bip49 .unavailable");
+ DOM.bip49available = $("#bip49 .available");
+ DOM.bip49path = $("#bip49-path");
+ DOM.bip49purpose = $("#bip49 .purpose");
+ DOM.bip49coin = $("#bip49 .coin");
+ DOM.bip49account = $("#bip49 .account");
+ DOM.bip49accountXprv = $("#bip49 .account-xprv");
+ DOM.bip49accountXpub = $("#bip49 .account-xpub");
+ DOM.bip49change = $("#bip49 .change");
DOM.generatedStrength = $(".generate-container .strength");
DOM.hardenedAddresses = $(".hardened-addresses");
DOM.addresses = $(".addresses");
DOM.more.on("click", showMore);
DOM.rootKey.on("input", delayedRootKeyChanged);
DOM.bip32path.on("input", calcForDerivationPath);
- DOM.bip44purpose.on("input", calcForDerivationPath);
- DOM.bip44coin.on("input", calcForDerivationPath);
DOM.bip44account.on("input", calcForDerivationPath);
DOM.bip44change.on("input", calcForDerivationPath);
+ DOM.bip49account.on("input", calcForDerivationPath);
+ DOM.bip49change.on("input", calcForDerivationPath);
DOM.tab.on("shown.bs.tab", calcForDerivationPath);
DOM.hardenedAddresses.on("change", calcForDerivationPath);
DOM.indexToggle.on("click", toggleIndexes);
// Event handlers
function networkChanged(e) {
+ clearDerivedKeys();
+ clearAddressesList();
var networkIndex = e.target.value;
- networks[networkIndex].onSelect();
+ var network = networks[networkIndex];
+ network.onSelect();
+ if (network.bip49available) {
+ showBip49();
+ }
+ else {
+ hideBip49();
+ }
if (seed != null) {
phraseChanged();
}
function calcForDerivationPath() {
showPending();
+ clearDerivedKeys();
clearAddressesList();
hideValidationError();
+ // Don't show bip49 if it's selected but network doesn't support it
+ if (bip49TabSelected() && !networkHasBip49()) {
+ return;
+ }
// Get the derivation path
var derivationPath = getDerivationPath();
var errorText = findDerivationPathErrors(derivationPath);
if (bip44TabSelected()) {
displayBip44Info();
}
+ if (bip49TabSelected()) {
+ displayBip49Info();
+ }
displayBip32Info();
hidePending();
}
function calcBip32RootKeyFromSeed(phrase, passphrase) {
seed = mnemonic.toSeed(phrase, passphrase);
- bip32RootKey = bitcoin.HDNode.fromSeedHex(seed, network);
+ bip32RootKey = bitcoinjs.bitcoin.HDNode.fromSeedHex(seed, network);
}
function calcBip32RootKeyFromBase58(rootKeyBase58) {
- bip32RootKey = bitcoin.HDNode.fromBase58(rootKeyBase58, network);
+ bip32RootKey = bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, network);
}
function calcBip32ExtendedKey(path) {
continue;
}
var hardened = bit[bit.length-1] == "'";
- var isPriv = "privKey" in extendedKey;
+ var isPriv = !(extendedKey.isNeutered());
var invalidDerivationPath = hardened && !isPriv;
if (invalidDerivationPath) {
extendedKey = null;
function validateRootKey(rootKeyBase58) {
try {
- bitcoin.HDNode.fromBase58(rootKeyBase58);
+ bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58);
}
catch (e) {
return "Invalid root key";
console.log("Using derivation path from BIP44 tab: " + derivationPath);
return derivationPath;
}
+ if (bip49TabSelected()) {
+ var purpose = parseIntNoNaN(DOM.bip49purpose.val(), 49);
+ var coin = parseIntNoNaN(DOM.bip49coin.val(), 0);
+ var account = parseIntNoNaN(DOM.bip49account.val(), 0);
+ var change = parseIntNoNaN(DOM.bip49change.val(), 0);
+ var path = "m/";
+ path += purpose + "'/";
+ path += coin + "'/";
+ path += account + "'/";
+ path += change;
+ DOM.bip49path.val(path);
+ var derivationPath = DOM.bip49path.val();
+ console.log("Using derivation path from BIP49 tab: " + derivationPath);
+ return derivationPath;
+ }
else if (bip32TabSelected()) {
var derivationPath = DOM.bip32path.val();
console.log("Using derivation path from BIP32 tab: " + derivationPath);
}
// Check no hardened derivation path when using xpub keys
var hardened = path.indexOf("'") > -1;
- var isXpubkey = !("privKey" in bip32RootKey);
+ var isXpubkey = bip32RootKey.isNeutered();
if (hardened && isXpubkey) {
return "Hardened derivation path is invalid with xpub key";
}
// Calculate the account extended keys
var accountExtendedKey = calcBip32ExtendedKey(path);
var accountXprv = accountExtendedKey.toBase58();
- var accountXpub = accountExtendedKey.toBase58(false);
+ var accountXpub = accountExtendedKey.neutered().toBase58();
// Display the extended keys
DOM.bip44accountXprv.val(accountXprv);
DOM.bip44accountXpub.val(accountXpub);
}
+ function displayBip49Info() {
+ // Get the derivation path for the account
+ var purpose = parseIntNoNaN(DOM.bip49purpose.val(), 49);
+ var coin = parseIntNoNaN(DOM.bip49coin.val(), 0);
+ var account = parseIntNoNaN(DOM.bip49account.val(), 0);
+ var path = "m/";
+ path += purpose + "'/";
+ path += coin + "'/";
+ path += account + "'/";
+ // Calculate the account extended keys
+ var accountExtendedKey = calcBip32ExtendedKey(path);
+ var accountXprv = accountExtendedKey.toBase58();
+ var accountXpub = accountExtendedKey.neutered().toBase58();
+ // Display the extended keys
+ DOM.bip49accountXprv.val(accountXprv);
+ DOM.bip49accountXpub.val(accountXpub);
+ }
+
function displayBip32Info() {
// Display the key
DOM.seed.val(seed);
var rootKey = bip32RootKey.toBase58();
DOM.rootKey.val(rootKey);
var xprvkeyB58 = "NA";
- if (bip32ExtendedKey.privKey) {
+ if (!bip32ExtendedKey.isNeutered()) {
xprvkeyB58 = bip32ExtendedKey.toBase58();
}
var extendedPrivKey = xprvkeyB58;
DOM.extendedPrivKey.val(extendedPrivKey);
- var extendedPubKey = bip32ExtendedKey.toBase58(false);
+ var extendedPubKey = bip32ExtendedKey.neutered().toBase58();
DOM.extendedPubKey.val(extendedPubKey);
// Display the addresses and privkeys
clearAddressesList();
var self = this;
this.shouldGenerate = true;
var useHardenedAddresses = DOM.hardenedAddresses.prop("checked");
+ var isBip49 = bip49TabSelected();
+ var bip49available = networkHasBip49();
function init() {
calculateValues();
if (!self.shouldGenerate) {
return;
}
- var key = "";
+ var key = "NA";
if (useHardenedAddresses) {
key = bip32ExtendedKey.deriveHardened(index);
}
}
var address = key.getAddress().toString();
var privkey = "NA";
- if (key.privKey) {
- privkey = key.privKey.toWIF(network);
+ if (!key.isNeutered()) {
+ privkey = key.keyPair.toWIF(network);
}
- var pubkey = key.pubKey.toHex();
+ var pubkey = key.getPublicKeyBuffer().toString('hex');
var indexText = getDerivationPath() + "/" + index;
if (useHardenedAddresses) {
indexText = indexText + "'";
}
// Ethereum values are different
- if (networks[DOM.network.val()].name == "Ethereum") {
- var privKeyBuffer = key.privKey.d.toBuffer();
+ if (networks[DOM.network.val()].name == "ETH - Ethereum") {
+ var privKeyBuffer = key.keyPair.d.toBuffer();
privkey = privKeyBuffer.toString('hex');
var addressBuffer = ethUtil.privateToAddress(privKeyBuffer);
var hexAddress = addressBuffer.toString('hex');
var checksumAddress = ethUtil.toChecksumAddress(hexAddress);
address = ethUtil.addHexPrefix(checksumAddress);
+ privkey = ethUtil.addHexPrefix(privkey);
+ pubkey = ethUtil.addHexPrefix(pubkey);
+ }
+ // Ripple values are different
+ if (networks[DOM.network.val()].name == "XRP - Ripple") {
+ privkey = convertRipplePriv(privkey);
+ address = convertRippleAdrr(address);
+ }
+ // BIP49 addresses are different
+ if (isBip49) {
+ if (!bip49available) {
+ return;
+ }
+ var keyhash = bitcoinjs.bitcoin.crypto.hash160(key.getPublicKeyBuffer());
+ var scriptsig = bitcoinjs.bitcoin.script.witnessPubKeyHash.output.encode(keyhash);
+ var addressbytes = bitcoinjs.bitcoin.crypto.hash160(scriptsig);
+ var scriptpubkey = bitcoinjs.bitcoin.script.scriptHash.output.encode(addressbytes);
+ address = bitcoinjs.bitcoin.address.fromOutputScript(scriptpubkey, network)
}
addAddressToList(indexText, address, pubkey, privkey);
}, 50)
function clearDisplay() {
clearAddressesList();
- clearKey();
+ clearKeys();
hideValidationError();
}
}
}
- function clearKey() {
+ function clearKeys() {
+ clearRootKey();
+ clearDerivedKeys();
+ }
+
+ function clearRootKey() {
DOM.rootKey.val("");
+ }
+
+ function clearDerivedKeys() {
DOM.extendedPrivKey.val("");
DOM.extendedPubKey.val("");
+ DOM.bip44accountXprv.val("");
+ DOM.bip44accountXpub.val("");
}
function addAddressToList(indexText, address, pubkey, privkey) {
}
function clearEntropyFeedback() {
- DOM.entropyStrength.text("...");
+ DOM.entropyCrackTime.text("...");
DOM.entropyType.text("");
DOM.entropyWordCount.text("0");
DOM.entropyEventCount.text("0");
function showEntropyFeedback(entropy) {
var numberOfBits = entropy.binaryStr.length;
- var strength = "extremely weak";
- if (numberOfBits >= 64) {
- strength = "very weak";
- }
- if (numberOfBits >= 96) {
- strength = "weak";
- }
- if (numberOfBits >= 128) {
- strength = "strong";
- }
- if (numberOfBits >= 160) {
- strength = "very strong";
- }
- if (numberOfBits >= 192) {
- strength = "extremely strong";
- }
- // If time to crack is less than one day, and password is considered
- // strong or better based on the number of bits, rename strength to
- // 'easily cracked'.
+ var timeToCrack = "unknown";
try {
var z = zxcvbn(entropy.base.parts.join(""));
- var timeToCrack = z.crack_times_seconds.offline_fast_hashing_1e10_per_second;
- if (timeToCrack < 86400 && entropy.binaryStr.length >= 128) {
- strength = "easily cracked";
- if (z.feedback.warning != "") {
- strength = strength + " - " + z.feedback.warning;
- };
- }
+ timeToCrack = z.crack_times_display.offline_fast_hashing_1e10_per_second;
+ if (z.feedback.warning != "") {
+ timeToCrack = timeToCrack + " - " + z.feedback.warning;
+ };
}
catch (e) {
- strength = "unknown";
console.log("Error detecting entropy strength with zxcvbn:");
console.log(e);
}
var bitsPerEvent = entropy.bitsPerEvent.toFixed(2);
DOM.entropyFiltered.html(entropy.cleanHtml);
DOM.entropyType.text(entropyTypeStr);
- DOM.entropyStrength.text(strength);
+ DOM.entropyCrackTime.text(timeToCrack);
DOM.entropyEventCount.text(entropy.base.ints.length);
DOM.entropyBits.text(numberOfBits);
DOM.entropyWordCount.text(wordCount);
return DOM.bip32tab.hasClass("active");
}
+ function networkHasBip49() {
+ return networks[DOM.network.val()].bip49available;
+ }
+
+ function bip49TabSelected() {
+ return DOM.bip49tab.hasClass("active");
+ }
+
+ function setHdCoin(coinValue) {
+ DOM.bip44coin.val(coinValue);
+ DOM.bip49coin.val(coinValue);
+ }
+
+ function showBip49() {
+ DOM.bip49unavailable.addClass("hidden");
+ DOM.bip49available.removeClass("hidden");
+ }
+
+ function hideBip49() {
+ DOM.bip49available.addClass("hidden");
+ DOM.bip49unavailable.removeClass("hidden");
+ }
+
var networks = [
{
- name: "Bitcoin",
+ name: "BTC - Bitcoin",
+ bip49available: true,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.bitcoin;
+ setHdCoin(0);
+ },
+ },
+ {
+ name: "BTC - Bitcoin Testnet",
+ bip49available: true,
onSelect: function() {
- network = bitcoin.networks.bitcoin;
- DOM.bip44coin.val(0);
+ network = bitcoinjs.bitcoin.networks.testnet;
+ setHdCoin(1);
},
},
{
- name: "Bitcoin Testnet",
+ name: "CLAM - Clams",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.testnet;
- DOM.bip44coin.val(1);
+ network = bitcoinjs.bitcoin.networks.clam;
+ setHdCoin(23);
},
},
{
- name: "CLAM",
+ name: "CRW - Crown",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.clam;
- DOM.bip44coin.val(23);
+ network = bitcoinjs.bitcoin.networks.crown;
+ setHdCoin(72);
},
},
{
- name: "Dogecoin",
+ name: "DASH - Dash",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.dogecoin;
- DOM.bip44coin.val(3);
+ network = bitcoinjs.bitcoin.networks.dash;
+ setHdCoin(5);
},
},
{
- name: "DASH",
+ name: "DASH - Dash Testnet",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.dash;
- DOM.bip44coin.val(5);
+ network = bitcoinjs.bitcoin.networks.dashtn;
+ setHdCoin(1);
},
},
{
- name: "Ethereum",
+ name: "DOGE - Dogecoin",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.bitcoin;
- DOM.bip44coin.val(60);
+ network = bitcoinjs.bitcoin.networks.dogecoin;
+ setHdCoin(3);
},
},
{
- name: "GAME",
+ name: "ETH - Ethereum",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.game;
- DOM.bip44coin.val(101);
+ network = bitcoinjs.bitcoin.networks.bitcoin;
+ setHdCoin(60);
},
},
{
- name: "Jumbucks",
+ name: "GAME - GameCredits",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.jumbucks;
- DOM.bip44coin.val(26);
+ network = bitcoinjs.bitcoin.networks.game;
+ setHdCoin(101);
},
},
{
- name: "Litecoin",
+ name: "JBS - Jumbucks",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.litecoin;
- DOM.bip44coin.val(2);
+ network = bitcoinjs.bitcoin.networks.jumbucks;
+ setHdCoin(26);
},
},
{
- name: "Namecoin",
+ name: "LTC - Litecoin",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.namecoin;
- DOM.bip44coin.val(7);
+ network = bitcoinjs.bitcoin.networks.litecoin;
+ setHdCoin(2);
},
},
{
- name: "Peercoin",
+ name: "NMC - Namecoin",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.peercoin;
- DOM.bip44coin.val(6);
+ network = bitcoinjs.bitcoin.networks.namecoin;
+ setHdCoin(7);
},
},
{
- name: "ShadowCash",
+ name: "PPC - Peercoin",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.shadow;
- DOM.bip44coin.val(35);
+ network = bitcoinjs.bitcoin.networks.peercoin;
+ setHdCoin(6);
},
},
{
- name: "ShadowCash Testnet",
+ name: "SDC - ShadowCash",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.shadowtn;
- DOM.bip44coin.val(1);
+ network = bitcoinjs.bitcoin.networks.shadow;
+ setHdCoin(35);
},
},
{
- name: "Slimcoin",
+ name: "SDC - ShadowCash Testnet",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.slimcoin;
- DOM.bip44coin.val(63);
+ network = bitcoinjs.bitcoin.networks.shadowtn;
+ setHdCoin(1);
},
},
{
- name: "Slimcoin Testnet",
+ name: "SLM - Slimcoin",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.slimcointn;
- DOM.bip44coin.val(111);
+ network = bitcoinjs.bitcoin.networks.slimcoin;
+ setHdCoin(63);
},
},
{
- name: "Viacoin",
+ name: "SLM - Slimcoin Testnet",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.viacoin;
- DOM.bip44coin.val(14);
+ network = bitcoinjs.bitcoin.networks.slimcointn;
+ setHdCoin(111);
},
},
{
- name: "Viacoin Testnet",
+ name: "VIA - Viacoin",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.viacointestnet;
- DOM.bip44coin.val(1);
+ network = bitcoinjs.bitcoin.networks.viacoin;
+ setHdCoin(14);
},
},
+ {
+ name: "VIA - Viacoin Testnet",
+ bip49available: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.viacointestnet;
+ setHdCoin(1);
+ },
+ },
+ {
+ name: "XRP - Ripple",
+ bip49available: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.bitcoin;
+ setHdCoin(144);
+ },
+ }
]
var clients = [
projects / perso / Immae / Projets / Cryptomonnaies / BIP39.git / blobdiff