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">v0.2.2</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">
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- <script>(function() {
- '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'
- /**
- * 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;
- };
+exports.byteLength = byteLength
+exports.toByteArray = toByteArray
+exports.fromByteArray = fromByteArray
+var lookup = []
+var revLookup = []
+var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
- /**
- * Defer execution of given function.
- * @param {Function} func
- */
- var _defer = function(func) {
- if (typeof setImmediate === 'function') {
- return setImmediate(func);
- } else {
- return setTimeout(func, 0);
- }
- };
+var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+for (var i = 0, len = code.length; i < len; ++i) {
+ lookup[i] = code[i]
+ revLookup[code.charCodeAt(i)] = i
+}
- /**
- * 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) {
- // base cases
- if (str1 === str2) return 0;
- if (str1.length === 0) return str2.length;
- if (str2.length === 0) return str1.length;
+revLookup['-'.charCodeAt(0)] = 62
+revLookup['_'.charCodeAt(0)] = 63
- // two rows
- var prevRow = new Array(str2.length + 1),
- curCol, nextCol, i, j, tmp;
+function placeHoldersCount (b64) {
+ var len = b64.length
+ if (len % 4 > 0) {
+ throw new Error('Invalid string. Length must be a multiple of 4')
+ }
- // initialise previous row
- for (i=0; i<prevRow.length; ++i) {
- prevRow[i] = i;
- }
+ // 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
+}
- // calculate current row distance from previous row
- for (i=0; i<str1.length; ++i) {
- nextCol = i + 1;
+function byteLength (b64) {
+ // base64 is 4/3 + up to two characters of the original data
+ return b64.length * 3 / 4 - placeHoldersCount(b64)
+}
- for (j=0; j<str2.length; ++j) {
- curCol = nextCol;
+function toByteArray (b64) {
+ var i, j, l, tmp, placeHolders, arr
+ var len = b64.length
+ placeHolders = placeHoldersCount(b64)
- // 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;
- }
+ arr = new Arr(len * 3 / 4 - placeHolders)
- // copy current col value into previous (in preparation for next iteration)
- prevRow[j] = curCol;
- }
+ // if there are placeholders, only get up to the last complete 4 chars
+ l = placeHolders > 0 ? len - 4 : len
- // copy last col value into previous (in preparation for next iteration)
- prevRow[j] = nextCol;
- }
+ var L = 0
- return nextCol;
- },
+ 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
+ }
- /**
- * 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);
+ 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
+ }
- // 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);
+ return arr
+}
- // two rows
- var prevRow = new Array(str2.length + 1),
- curCol, nextCol,
- i, j, tmp,
- startTime, currentTime;
+function tripletToBase64 (num) {
+ return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
+}
- // initialise previous row
- for (i=0; i<prevRow.length; ++i) {
- prevRow[i] = i;
- }
+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('')
+}
- nextCol = 1;
- i = 0;
- j = -1;
+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
- var __calculate = function() {
- // reset timer
- startTime = new Date().valueOf();
- currentTime = startTime;
+ // 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)))
+ }
- // 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;
+ // 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 += '='
+ }
- // 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;
- }
- }
+ parts.push(output)
- // calculation
- curCol = nextCol;
+ return parts.join('')
+}
- // 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;
- }
+},{}],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 */
- // copy current into previous (in preparation for next iteration)
- prevRow[j] = curCol;
+'use strict'
- // get current time
- currentTime = new Date().valueOf();
- }
+var base64 = require('base64-js')
+var ieee754 = require('ieee754')
- // 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());
- }
- }
+exports.Buffer = Buffer
+exports.SlowBuffer = SlowBuffer
+exports.INSPECT_MAX_BYTES = 50
- // next iteration
- _defer(__calculate);
- };
+var K_MAX_LENGTH = 0x7fffffff
+exports.kMaxLength = K_MAX_LENGTH
- __calculate();
- }
+/**
+ * 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.'
+ )
+}
- // 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;
+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
}
- // browser main thread
- else if (typeof window !== "undefined" && window !== null) {
- window.Levenshtein = Levenshtein;
+}
+
+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
+}
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-0<=d&&6>=d&&(0==b||6==b)||0<=b&&6>=b&&(0==d||6==d)||2<=d&&4>=d&&2<=b&&4>=b?!0:!1)},getBestMaskPattern:function(){for(var a=0,c=0,d=0;8>d;d++){this.makeImpl(!0,d);var b=j.getLostPoint(this);if(0==d||a>b)a=b,c=d}return c},createMovieClip:function(a,c,d){a=a.createEmptyMovieClip(c,d);this.make();for(c=0;c<this.modules.length;c++)for(var d=1*c,b=0;b<this.modules[c].length;b++){var e=1*b;this.modules[c][b]&&(a.beginFill(0,100),a.moveTo(e,d),a.lineTo(e+1,d),a.lineTo(e+1,d+1),a.lineTo(e,d+1),a.endFill())}return a},
-setupTimingPattern:function(){for(var a=8;a<this.moduleCount-8;a++)null==this.modules[a][6]&&(this.modules[a][6]=0==a%2);for(a=8;a<this.moduleCount-8;a++)null==this.modules[6][a]&&(this.modules[6][a]=0==a%2)},setupPositionAdjustPattern:function(){for(var a=j.getPatternPosition(this.typeNumber),c=0;c<a.length;c++)for(var d=0;d<a.length;d++){var b=a[c],e=a[d];if(null==this.modules[b][e])for(var f=-2;2>=f;f++)for(var i=-2;2>=i;i++)this.modules[b+f][e+i]=-2==f||2==f||-2==i||2==i||0==f&&0==i?!0:!1}},setupTypeNumber:function(a){for(var c=
-j.getBCHTypeNumber(this.typeNumber),d=0;18>d;d++){var b=!a&&1==(c>>d&1);this.modules[Math.floor(d/3)][d%3+this.moduleCount-8-3]=b}for(d=0;18>d;d++)b=!a&&1==(c>>d&1),this.modules[d%3+this.moduleCount-8-3][Math.floor(d/3)]=b},setupTypeInfo:function(a,c){for(var d=j.getBCHTypeInfo(this.errorCorrectLevel<<3|c),b=0;15>b;b++){var e=!a&&1==(d>>b&1);6>b?this.modules[b][8]=e:8>b?this.modules[b+1][8]=e:this.modules[this.moduleCount-15+b][8]=e}for(b=0;15>b;b++)e=!a&&1==(d>>b&1),8>b?this.modules[8][this.moduleCount-
-b-1]=e:9>b?this.modules[8][15-b-1+1]=e:this.modules[8][15-b-1]=e;this.modules[this.moduleCount-8][8]=!a},mapData:function(a,c){for(var d=-1,b=this.moduleCount-1,e=7,f=0,i=this.moduleCount-1;0<i;i-=2)for(6==i&&i--;;){for(var g=0;2>g;g++)if(null==this.modules[b][i-g]){var n=!1;f<a.length&&(n=1==(a[f]>>>e&1));j.getMask(c,b,i-g)&&(n=!n);this.modules[b][i-g]=n;e--; -1==e&&(f++,e=7)}b+=d;if(0>b||this.moduleCount<=b){b-=d;d=-d;break}}}};o.PAD0=236;o.PAD1=17;o.createData=function(a,c,d){for(var c=p.getRSBlocks(a,
-c),b=new t,e=0;e<d.length;e++){var f=d[e];b.put(f.mode,4);b.put(f.getLength(),j.getLengthInBits(f.mode,a));f.write(b)}for(e=a=0;e<c.length;e++)a+=c[e].dataCount;if(b.getLengthInBits()>8*a)throw Error("code length overflow. ("+b.getLengthInBits()+">"+8*a+")");for(b.getLengthInBits()+4<=8*a&&b.put(0,4);0!=b.getLengthInBits()%8;)b.putBit(!1);for(;!(b.getLengthInBits()>=8*a);){b.put(o.PAD0,8);if(b.getLengthInBits()>=8*a)break;b.put(o.PAD1,8)}return o.createBytes(b,c)};o.createBytes=function(a,c){for(var d=
-0,b=0,e=0,f=Array(c.length),i=Array(c.length),g=0;g<c.length;g++){var n=c[g].dataCount,h=c[g].totalCount-n,b=Math.max(b,n),e=Math.max(e,h);f[g]=Array(n);for(var k=0;k<f[g].length;k++)f[g][k]=255&a.buffer[k+d];d+=n;k=j.getErrorCorrectPolynomial(h);n=(new q(f[g],k.getLength()-1)).mod(k);i[g]=Array(k.getLength()-1);for(k=0;k<i[g].length;k++)h=k+n.getLength()-i[g].length,i[g][k]=0<=h?n.get(h):0}for(k=g=0;k<c.length;k++)g+=c[k].totalCount;d=Array(g);for(k=n=0;k<b;k++)for(g=0;g<c.length;g++)k<f[g].length&&
-(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)
+/**
+ * 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.
+ */
- 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)
+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)
}
-var proto = BigInteger.prototype
-
-// duck-typed isBigInteger
-proto.__bigi = require('../package.json').version
-BigInteger.isBigInteger = function (obj, check_ver) {
- return obj && obj.__bigi && (!check_ver || obj.__bigi === proto.__bigi)
+// 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
+ })
}
-// Bits per digit
-var dbits
+Buffer.poolSize = 8192 // not used by this implementation
-// 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.
+function from (value, encodingOrOffset, length) {
+ if (typeof value === 'number') {
+ throw new TypeError('"value" argument must not be a number')
+ }
-// 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
+ if (value instanceof ArrayBuffer) {
+ return fromArrayBuffer(value, encodingOrOffset, length)
}
- 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
+
+ if (typeof value === 'string') {
+ return fromString(value, encodingOrOffset)
}
- return c
+
+ return fromObject(value)
}
-// 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
+
+/**
+ * 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)
}
-// wtf?
-BigInteger.prototype.am = am1
-dbits = 26
+// 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
-BigInteger.prototype.DB = dbits
-BigInteger.prototype.DM = ((1 << dbits) - 1)
-var DV = BigInteger.prototype.DV = (1 << dbits)
-
-var BI_FP = 52
-BigInteger.prototype.FV = Math.pow(2, BI_FP)
-BigInteger.prototype.F1 = BI_FP - dbits
-BigInteger.prototype.F2 = 2 * dbits - BI_FP
-
-// Digit conversions
-var BI_RM = "0123456789abcdefghijklmnopqrstuvwxyz"
-var BI_RC = new Array()
-var rr, vv
-rr = "0".charCodeAt(0)
-for (vv = 0; vv <= 9; ++vv) BI_RC[rr++] = vv
-rr = "a".charCodeAt(0)
-for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv
-rr = "A".charCodeAt(0)
-for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv
-
-function int2char(n) {
- return BI_RM.charAt(n)
+function 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 intAt(s, i) {
- var c = BI_RC[s.charCodeAt(i)]
- return (c == null) ? -1 : c
+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)
}
-// (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
+/**
+ * Creates a new filled Buffer instance.
+ * alloc(size[, fill[, encoding]])
+ **/
+Buffer.alloc = function (size, fill, encoding) {
+ return alloc(size, fill, encoding)
}
-// (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
+function allocUnsafe (size) {
+ assertSize(size)
+ return createBuffer(size < 0 ? 0 : checked(size) | 0)
}
-// return bigint initialized to value
-function nbv(i) {
- var r = new BigInteger()
- r.fromInt(i)
- return r
+/**
+ * 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)
}
-// (protected) set from string and radix
-function bnpFromString(s, b) {
- var self = this
+function fromString (string, encoding) {
+ if (typeof encoding !== 'string' || encoding === '') {
+ encoding = 'utf8'
+ }
- 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
+ if (!Buffer.isEncoding(encoding)) {
+ throw new TypeError('"encoding" must be a valid string encoding')
}
- 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
+
+ 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)
}
- if (k == 8 && (s[0] & 0x80) != 0) {
- self.s = -1
- if (sh > 0) self[self.t - 1] |= ((1 << (self.DB - sh)) - 1) << sh
+
+ 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
}
- self.clamp()
- if (mi) BigInteger.ZERO.subTo(self, self)
+ return buf
}
-// (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
+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
}
-// (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)
+function fromObject (obj) {
+ if (Buffer.isBuffer(obj)) {
+ var len = checked(obj.length) | 0
+ var buf = createBuffer(len)
+
+ if (buf.length === 0) {
+ return buf
}
- 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
- }
+
+ 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)
}
- if (d > 0) m = true
- if (m) r += int2char(d)
+ return fromArrayLike(obj)
+ }
+
+ if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
+ return fromArrayLike(obj.data)
}
}
- return m ? r : "0"
+
+ throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
}
-// (public) -this
-function bnNegate() {
- var r = new BigInteger()
- BigInteger.ZERO.subTo(this, r)
- return r
+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
}
-// (public) |this|
-function bnAbs() {
- return (this.s < 0) ? this.negate() : this
+function SlowBuffer (length) {
+ if (+length != length) { // eslint-disable-line eqeqeq
+ length = 0
+ }
+ return Buffer.alloc(+length)
}
-// (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.isBuffer = function isBuffer (b) {
+ return b != null && b._isBuffer === 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
+Buffer.compare = function compare (a, b) {
+ if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
+ throw new TypeError('Arguments must be Buffers')
}
- 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 (a === b) return 0
-// (public) return the number of bytes in "this"
-function bnByteLength() {
- return this.bitLength() >> 3
-}
+ var x = a.length
+ var y = b.length
-// (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
-}
+ for (var i = 0, len = Math.min(x, y); i < len; ++i) {
+ if (a[i] !== b[i]) {
+ x = a[i]
+ y = b[i]
+ break
+ }
+ }
-// (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 (x < y) return -1
+ if (y < x) return 1
+ 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
+Buffer.isEncoding = function isEncoding (encoding) {
+ switch (String(encoding).toLowerCase()) {
+ case 'hex':
+ case 'utf8':
+ case 'utf-8':
+ case 'ascii':
+ case 'latin1':
+ case 'binary':
+ case 'base64':
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return true
+ default:
+ return false
}
- for (i = ds - 1; i >= 0; --i) r[i] = 0
- r[ds] = c
- r.t = self.t + ds + 1
- r.s = self.s
- r.clamp()
}
-// (protected) r = this >> n
-function bnpRShiftTo(n, r) {
- var self = this
- r.s = self.s
- var ds = Math.floor(n / self.DB)
- if (ds >= self.t) {
- r.t = 0
- return
- }
- var bs = n % self.DB
- var cbs = self.DB - bs
- var bm = (1 << bs) - 1
- r[0] = self[ds] >> bs
- for (var i = ds + 1; i < self.t; ++i) {
- r[i - ds - 1] |= (self[i] & bm) << cbs
- r[i - ds] = self[i] >> bs
+Buffer.concat = function concat (list, length) {
+ if (!Array.isArray(list)) {
+ throw new TypeError('"list" argument must be an Array of Buffers')
}
- if (bs > 0) r[self.t - ds - 1] |= (self.s & bm) << cbs
- r.t = self.t - ds
- r.clamp()
-}
-// (protected) r = this - a
-function bnpSubTo(a, r) {
- var self = this
- var i = 0,
- c = 0,
- m = Math.min(a.t, self.t)
- while (i < m) {
- c += self[i] - a[i]
- r[i++] = c & self.DM
- c >>= self.DB
+ if (list.length === 0) {
+ return Buffer.alloc(0)
}
- 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
+
+ var i
+ if (length === undefined) {
+ length = 0
+ for (i = 0; i < list.length; ++i) {
+ length += list[i].length
}
- c -= a.s
}
- r.s = (c < 0) ? -1 : 0
- if (c < -1) r[i++] = self.DV + c
- else if (c > 0) r[i++] = c
- r.t = i
- r.clamp()
-}
-
-// (protected) r = this * a, r != this,a (HAC 14.12)
-// "this" should be the larger one if appropriate.
-function bnpMultiplyTo(a, r) {
- var x = this.abs(),
- y = a.abs()
- var i = x.t
- r.t = i + y.t
- while (--i >= 0) r[i] = 0
- for (i = 0; i < y.t; ++i) r[i + x.t] = x.am(0, y[i], r, i, 0, x.t)
- r.s = 0
- r.clamp()
- if (this.s != a.s) BigInteger.ZERO.subTo(r, r)
-}
-// (protected) r = this^2, r != this (HAC 14.16)
-function bnpSquareTo(r) {
- var x = this.abs()
- var i = r.t = 2 * x.t
- while (--i >= 0) r[i] = 0
- for (i = 0; i < x.t - 1; ++i) {
- var c = x.am(i, x[i], r, 2 * i, 0, 1)
- if ((r[i + x.t] += x.am(i + 1, 2 * x[i], r, 2 * i + 1, c, x.t - i - 1)) >= x.DV) {
- r[i + x.t] -= x.DV
- r[i + x.t + 1] = 1
+ 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
}
- if (r.t > 0) r[r.t - 1] += x.am(i, x[i], r, 2 * i, 0, 1)
- r.s = 0
- r.clamp()
+ return buffer
}
-// (protected) divide this by m, quotient and remainder to q, r (HAC 14.20)
-// r != q, this != m. q or r may be null.
-function bnpDivRemTo(m, q, r) {
- var self = this
- var pm = m.abs()
- if (pm.t <= 0) return
- var pt = self.abs()
- if (pt.t < pm.t) {
- if (q != null) q.fromInt(0)
- if (r != null) self.copyTo(r)
- return
- }
- if (r == null) r = new BigInteger()
- var y = new BigInteger(),
- ts = self.s,
- ms = m.s
- var nsh = self.DB - nbits(pm[pm.t - 1]); // normalize modulus
- if (nsh > 0) {
- pm.lShiftTo(nsh, y)
- pt.lShiftTo(nsh, r)
- } else {
- pm.copyTo(y)
- pt.copyTo(r)
+function byteLength (string, encoding) {
+ if (Buffer.isBuffer(string)) {
+ return string.length
}
- 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)
+ if (isArrayBufferView(string) || string instanceof ArrayBuffer) {
+ return string.byteLength
}
- 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 (typeof string !== 'string') {
+ string = '' + string
}
- if (q != null) {
- r.drShiftTo(ys, q)
- if (ts != ms) BigInteger.ZERO.subTo(q, q)
- }
- r.t = ys
- r.clamp()
- if (nsh > 0) r.rShiftTo(nsh, r); // Denormalize remainder
- if (ts < 0) BigInteger.ZERO.subTo(r, r)
-}
-
-// (public) this mod a
-function bnMod(a) {
- var r = new BigInteger()
- this.abs()
- .divRemTo(a, null, r)
- if (this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r, r)
- return r
-}
-// Modular reduction using "classic" algorithm
-function Classic(m) {
- this.m = m
-}
+ var len = string.length
+ if (len === 0) return 0
-function cConvert(x) {
- if (x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m)
- else return x
+ // 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 cRevert(x) {
- return x
-}
+function slowToString (encoding, start, end) {
+ var loweredCase = false
-function cReduce(x) {
- x.divRemTo(this.m, null, x)
-}
+ // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
+ // property of a typed array.
-function cMulTo(x, y, r) {
- x.multiplyTo(y, r)
- this.reduce(r)
-}
+ // 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 ''
+ }
-function cSqrTo(x, r) {
- x.squareTo(r)
- this.reduce(r)
-}
+ if (end === undefined || end > this.length) {
+ end = this.length
+ }
-Classic.prototype.convert = cConvert
-Classic.prototype.revert = cRevert
-Classic.prototype.reduce = cReduce
-Classic.prototype.mulTo = cMulTo
-Classic.prototype.sqrTo = cSqrTo
+ if (end <= 0) {
+ return ''
+ }
-// (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
-}
+ // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
+ end >>>= 0
+ start >>>= 0
-// 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
-}
+ if (end <= start) {
+ return ''
+ }
-// 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
-}
+ if (!encoding) encoding = 'utf8'
-// x/R mod m
-function montRevert(x) {
- var r = new BigInteger()
- x.copyTo(r)
- this.reduce(r)
- return r
-}
+ while (true) {
+ switch (encoding) {
+ case 'hex':
+ return hexSlice(this, start, end)
-// x = x/R mod m (HAC 14.32)
-function montReduce(x) {
- while (x.t <= this.mt2) // pad x so am has enough room later
- x[x.t++] = 0
- for (var i = 0; i < this.m.t; ++i) {
- // faster way of calculating u0 = x[i]*mp mod DV
- var j = x[i] & 0x7fff
- var u0 = (j * this.mpl + (((j * this.mph + (x[i] >> 15) * this.mpl) & this.um) << 15)) & x.DM
- // use am to combine the multiply-shift-add into one call
- j = i + this.m.t
- x[j] += this.m.am(0, u0, x, i, 0, this.m.t)
- // propagate carry
- while (x[j] >= x.DV) {
- x[j] -= x.DV
- x[++j]++
- }
- }
- x.clamp()
- x.drShiftTo(this.m.t, x)
- if (x.compareTo(this.m) >= 0) x.subTo(this.m, x)
-}
+ case 'utf8':
+ case 'utf-8':
+ return utf8Slice(this, start, end)
-// r = "x^2/R mod m"; x != r
-function montSqrTo(x, r) {
- x.squareTo(r)
- this.reduce(r)
-}
+ case 'ascii':
+ return asciiSlice(this, start, end)
-// r = "xy/R mod m"; x,y != r
-function montMulTo(x, y, r) {
- x.multiplyTo(y, r)
- this.reduce(r)
-}
+ case 'latin1':
+ case 'binary':
+ return latin1Slice(this, start, end)
-Montgomery.prototype.convert = montConvert
-Montgomery.prototype.revert = montRevert
-Montgomery.prototype.reduce = montReduce
-Montgomery.prototype.mulTo = montMulTo
-Montgomery.prototype.sqrTo = montSqrTo
+ case 'base64':
+ return base64Slice(this, start, end)
-// (protected) true iff this is even
-function bnpIsEven() {
- return ((this.t > 0) ? (this[0] & 1) : this.s) == 0
-}
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return utf16leSlice(this, start, end)
-// (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
+ default:
+ if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+ encoding = (encoding + '').toLowerCase()
+ loweredCase = true
}
}
- return z.revert(r)
-}
-
-// (public) this^e % m, 0 <= e < 2^32
-function bnModPowInt(e, m) {
- var z
- if (e < 256 || m.isEven()) z = new Classic(m)
- else z = new Montgomery(m)
- return this.exp(e, z)
}
-// protected
-proto.copyTo = bnpCopyTo
-proto.fromInt = bnpFromInt
-proto.fromString = bnpFromString
-proto.clamp = bnpClamp
-proto.dlShiftTo = bnpDLShiftTo
-proto.drShiftTo = bnpDRShiftTo
-proto.lShiftTo = bnpLShiftTo
-proto.rShiftTo = bnpRShiftTo
-proto.subTo = bnpSubTo
-proto.multiplyTo = bnpMultiplyTo
-proto.squareTo = bnpSquareTo
-proto.divRemTo = bnpDivRemTo
-proto.invDigit = bnpInvDigit
-proto.isEven = bnpIsEven
-proto.exp = bnpExp
-
-// public
-proto.toString = bnToString
-proto.negate = bnNegate
-proto.abs = bnAbs
-proto.compareTo = bnCompareTo
-proto.bitLength = bnBitLength
-proto.byteLength = bnByteLength
-proto.mod = bnMod
-proto.modPowInt = bnModPowInt
+// 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
-// (public)
-function bnClone() {
- var r = new BigInteger()
- this.copyTo(r)
- return r
+function swap (b, n, m) {
+ var i = b[n]
+ b[n] = b[m]
+ b[m] = i
}
-// (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]
+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
}
-// (public) return value as byte
-function bnByteValue() {
- return (this.t == 0) ? this.s : (this[0] << 24) >> 24
+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 value as short (assumes DB>=16)
-function bnShortValue() {
- return (this.t == 0) ? this.s : (this[0] << 16) >> 16
+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
}
-// (protected) return x s.t. r^x < DV
-function bnpChunkSize(r) {
- return Math.floor(Math.LN2 * this.DB / Math.log(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) 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
+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
}
-// (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)
+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 z.intValue()
- .toString(b) + r
+ return '<Buffer ' + str + '>'
}
-// (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
- }
+Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
+ if (!Buffer.isBuffer(target)) {
+ throw new TypeError('Argument must be a Buffer')
}
- if (j > 0) {
- self.dMultiply(Math.pow(b, j))
- self.dAddOffset(w, 0)
+
+ 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 (mi) BigInteger.ZERO.subTo(self, self)
-}
-// (protected) alternate constructor
-function bnpFromNumber(a, b, c) {
- var self = this
- if ("number" == typeof b) {
- // new BigInteger(int,int,RNG)
- if (a < 2) self.fromInt(1)
- else {
- self.fromNumber(a, c)
- if (!self.testBit(a - 1)) // force MSB set
- self.bitwiseTo(BigInteger.ONE.shiftLeft(a - 1), op_or, self)
- if (self.isEven()) self.dAddOffset(1, 0); // force odd
- while (!self.isProbablePrime(b)) {
- self.dAddOffset(2, 0)
- if (self.bitLength() > a) self.subTo(BigInteger.ONE.shiftLeft(a - 1), self)
- }
- }
- } else {
- // new BigInteger(int,RNG)
- var x = new Array(),
- t = a & 7
- x.length = (a >> 3) + 1
- b.nextBytes(x)
- if (t > 0) x[0] &= ((1 << t) - 1)
- else x[0] = 0
- self.fromString(x, 256)
+ if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
+ throw new RangeError('out of range index')
}
-}
-// (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
- }
+ if (thisStart >= thisEnd && start >= end) {
+ return 0
+ }
+ if (thisStart >= thisEnd) {
+ return -1
+ }
+ if (start >= end) {
+ return 1
}
- return r
-}
-function bnEquals(a) {
- return (this.compareTo(a) == 0)
-}
+ start >>>= 0
+ end >>>= 0
+ thisStart >>>= 0
+ thisEnd >>>= 0
-function bnMin(a) {
- return (this.compareTo(a) < 0) ? this : a
-}
+ if (this === target) return 0
-function bnMax(a) {
- return (this.compareTo(a) > 0) ? this : a
-}
+ var x = thisEnd - thisStart
+ var y = end - start
+ var len = Math.min(x, y)
-// (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()
-}
+ var thisCopy = this.slice(thisStart, thisEnd)
+ var targetCopy = target.slice(start, end)
-// (public) this & a
-function op_and(x, y) {
- return x & y
-}
-
-function bnAnd(a) {
- var r = new BigInteger()
- this.bitwiseTo(a, op_and, r)
- return r
-}
-
-// (public) this | a
-function op_or(x, y) {
- return x | y
-}
+ for (var i = 0; i < len; ++i) {
+ if (thisCopy[i] !== targetCopy[i]) {
+ x = thisCopy[i]
+ y = targetCopy[i]
+ break
+ }
+ }
-function bnOr(a) {
- var r = new BigInteger()
- this.bitwiseTo(a, op_or, r)
- return r
+ if (x < y) return -1
+ if (y < x) return 1
+ return 0
}
-// (public) this ^ a
-function op_xor(x, y) {
- return x ^ y
-}
+// 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
-function bnXor(a) {
- var r = new BigInteger()
- this.bitwiseTo(a, op_xor, r)
- return r
-}
+ // 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)
+ }
-// (public) this & ~a
-function op_andnot(x, y) {
- return x & ~y
-}
+ // 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
+ }
-function bnAndNot(a) {
- var r = new BigInteger()
- this.bitwiseTo(a, op_andnot, r)
- return r
-}
+ // Normalize val
+ if (typeof val === 'string') {
+ val = Buffer.from(val, encoding)
+ }
-// (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
-}
+ // 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)
+ }
-// (public) this << n
-function bnShiftLeft(n) {
- var r = new BigInteger()
- if (n < 0) this.rShiftTo(-n, r)
- else this.lShiftTo(n, r)
- return r
+ throw new TypeError('val must be string, number or Buffer')
}
-// (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 arrayIndexOf (arr, val, byteOffset, encoding, dir) {
+ var indexSize = 1
+ var arrLength = arr.length
+ var valLength = val.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
+ 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 ((x & 1) == 0)++r
- return r
-}
-// (public) returns index of lowest 1-bit (or -1 if none)
-function bnGetLowestSetBit() {
- for (var i = 0; i < this.t; ++i)
- if (this[i] != 0) return i * this.DB + lbit(this[i])
- if (this.s < 0) return this.t * this.DB
- return -1
-}
-
-// return number of 1 bits in x
-function cbit(x) {
- var r = 0
- while (x != 0) {
- x &= x - 1
- ++r
+ function read (buf, i) {
+ if (indexSize === 1) {
+ return buf[i]
+ } else {
+ return buf.readUInt16BE(i * indexSize)
+ }
}
- return r
-}
-
-// (public) return number of set bits
-function bnBitCount() {
- var r = 0,
- x = this.s & this.DM
- for (var i = 0; i < this.t; ++i) r += cbit(this[i] ^ x)
- return r
-}
-// (public) true iff nth bit is set
-function bnTestBit(n) {
- var j = Math.floor(n / this.DB)
- if (j >= this.t) return (this.s != 0)
- return ((this[j] & (1 << (n % this.DB))) != 0)
-}
+ 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
+ }
+ }
-// (protected) this op (1<<n)
-function bnpChangeBit(n, op) {
- var r = BigInteger.ONE.shiftLeft(n)
- this.bitwiseTo(r, op, r)
- return r
+ return -1
}
-// (public) this | (1<<n)
-function bnSetBit(n) {
- return this.changeBit(n, op_or)
+Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
+ return this.indexOf(val, byteOffset, encoding) !== -1
}
-// (public) this & ~(1<<n)
-function bnClearBit(n) {
- return this.changeBit(n, op_andnot)
+Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
+ return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
}
-// (public) this ^ (1<<n)
-function bnFlipBit(n) {
- return this.changeBit(n, op_xor)
+Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
+ return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}
-// (protected) r = this + a
-function bnpAddTo(a, r) {
- var self = this
-
- var i = 0,
- c = 0,
- m = Math.min(a.t, self.t)
- while (i < m) {
- c += self[i] + a[i]
- r[i++] = c & self.DM
- c >>= self.DB
- }
- if (a.t < self.t) {
- c += a.s
- while (i < self.t) {
- c += self[i]
- r[i++] = c & self.DM
- c >>= self.DB
- }
- c += self.s
+function hexWrite (buf, string, offset, length) {
+ offset = Number(offset) || 0
+ var remaining = buf.length - offset
+ if (!length) {
+ length = remaining
} else {
- c += self.s
- while (i < a.t) {
- c += a[i]
- r[i++] = c & self.DM
- c >>= self.DB
+ length = Number(length)
+ if (length > remaining) {
+ length = remaining
}
- c += a.s
}
- r.s = (c < 0) ? -1 : 0
- if (c > 0) r[i++] = c
- else if (c < -1) r[i++] = self.DV + c
- r.t = i
- r.clamp()
-}
-
-// (public) this + a
-function bnAdd(a) {
- var r = new BigInteger()
- this.addTo(a, r)
- return r
-}
-// (public) this - a
-function bnSubtract(a) {
- var r = new BigInteger()
- this.subTo(a, r)
- return r
-}
+ // must be an even number of digits
+ var strLen = string.length
+ if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
-// (public) this * a
-function bnMultiply(a) {
- var r = new BigInteger()
- this.multiplyTo(a, r)
- return 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
}
-// (public) this^2
-function bnSquare() {
- var r = new BigInteger()
- this.squareTo(r)
- return r
+function utf8Write (buf, string, offset, length) {
+ return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}
-// (public) this / a
-function bnDivide(a) {
- var r = new BigInteger()
- this.divRemTo(a, r, null)
- return r
+function asciiWrite (buf, string, offset, length) {
+ return blitBuffer(asciiToBytes(string), buf, offset, length)
}
-// (public) this % a
-function bnRemainder(a) {
- var r = new BigInteger()
- this.divRemTo(a, null, r)
- return r
+function latin1Write (buf, string, offset, length) {
+ return asciiWrite(buf, string, offset, length)
}
-// (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 base64Write (buf, string, offset, length) {
+ return blitBuffer(base64ToBytes(string), buf, offset, length)
}
-// (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()
+function ucs2Write (buf, string, offset, length) {
+ return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}
-// (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.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'
+ )
}
-}
-// A "null" reducer
-function NullExp() {}
+ var remaining = this.length - offset
+ if (length === undefined || length > remaining) length = remaining
-function nNop(x) {
- return x
-}
+ if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
+ throw new RangeError('Attempt to write outside buffer bounds')
+ }
-function nMulTo(x, y, r) {
- x.multiplyTo(y, r)
-}
+ if (!encoding) encoding = 'utf8'
-function nSqrTo(x, r) {
- x.squareTo(r)
-}
+ var loweredCase = false
+ for (;;) {
+ switch (encoding) {
+ case 'hex':
+ return hexWrite(this, string, offset, length)
-NullExp.prototype.convert = nNop
-NullExp.prototype.revert = nNop
-NullExp.prototype.mulTo = nMulTo
-NullExp.prototype.sqrTo = nSqrTo
+ case 'utf8':
+ case 'utf-8':
+ return utf8Write(this, string, offset, length)
-// (public) this^e
-function bnPow(e) {
- return this.exp(e, new NullExp())
-}
+ case 'ascii':
+ return asciiWrite(this, string, offset, length)
-// (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()
-}
+ case 'latin1':
+ case 'binary':
+ return latin1Write(this, string, offset, length)
-// (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)
-}
+ case 'base64':
+ // Warning: maxLength not taken into account in base64Write
+ return base64Write(this, string, offset, length)
-// 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
-}
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return ucs2Write(this, string, offset, length)
-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
+ default:
+ if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+ encoding = ('' + encoding).toLowerCase()
+ loweredCase = true
+ }
}
}
-function barrettRevert(x) {
- return x
-}
-
-// x = x mod m (HAC 14.42)
-function barrettReduce(x) {
- var self = this
- x.drShiftTo(self.m.t - 1, self.r2)
- if (x.t > self.m.t + 1) {
- x.t = self.m.t + 1
- x.clamp()
+Buffer.prototype.toJSON = function toJSON () {
+ return {
+ type: 'Buffer',
+ data: Array.prototype.slice.call(this._arr || this, 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)
}
-// r = x^2 mod m; x != r
-function barrettSqrTo(x, r) {
- x.squareTo(r)
- this.reduce(r)
+function base64Slice (buf, start, end) {
+ if (start === 0 && end === buf.length) {
+ return base64.fromByteArray(buf)
+ } else {
+ return base64.fromByteArray(buf.slice(start, end))
+ }
}
-// r = x*y mod m; x,y != r
-function barrettMulTo(x, y, r) {
- x.multiplyTo(y, r)
- this.reduce(r)
-}
+function utf8Slice (buf, start, end) {
+ end = Math.min(buf.length, end)
+ var res = []
-Barrett.prototype.convert = barrettConvert
-Barrett.prototype.revert = barrettRevert
-Barrett.prototype.reduce = barrettReduce
-Barrett.prototype.mulTo = barrettMulTo
-Barrett.prototype.sqrTo = barrettSqrTo
-
-// (public) this^e % m (HAC 14.85)
-function bnModPow(e, m) {
- var i = e.bitLength(),
- k, r = nbv(1),
- z
- if (i <= 0) return r
- else if (i < 18) k = 1
- else if (i < 48) k = 3
- else if (i < 144) k = 4
- else if (i < 768) k = 5
- else k = 6
- if (i < 8)
- z = new Classic(m)
- else if (m.isEven())
- z = new Barrett(m)
- else
- z = new Montgomery(m)
-
- // precomputation
- var g = new Array(),
- n = 3,
- k1 = k - 1,
- km = (1 << k) - 1
- g[1] = z.convert(this)
- if (k > 1) {
- var g2 = new BigInteger()
- z.sqrTo(g[1], g2)
- while (n <= km) {
- g[n] = new BigInteger()
- z.mulTo(g2, g[n - 2], g[n])
- n += 2
- }
- }
+ var i = start
+ while (i < end) {
+ var firstByte = buf[i]
+ var codePoint = null
+ var bytesPerSequence = (firstByte > 0xEF) ? 4
+ : (firstByte > 0xDF) ? 3
+ : (firstByte > 0xBF) ? 2
+ : 1
- 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)
- }
+ if (i + bytesPerSequence <= end) {
+ var secondByte, thirdByte, fourthByte, tempCodePoint
- 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
+ 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
+ }
+ }
}
- z.mulTo(r2, g[w], r)
}
- while (j >= 0 && (e[j] & (1 << i)) == 0) {
- z.sqrTo(r, r2)
- t = r
- r = r2
- r2 = t
- if (--i < 0) {
- i = this.DB - 1
- --j
- }
+ 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 z.revert(r)
+
+ return decodeCodePointsArray(res)
}
-// (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)
+// 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()
}
- 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)
- }
+
+ // 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)
+ )
}
- if (g > 0) y.lShiftTo(g, y)
- return y
+ return res
}
-// (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
+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
}
-// (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)
- }
+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])
}
- 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
+ return ret
}
-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
-]
+function hexSlice (buf, start, end) {
+ var len = buf.length
-var lplim = (1 << 26) / lowprimes[lowprimes.length - 1]
+ if (!start || start < 0) start = 0
+ if (!end || end < 0 || end > len) end = len
-// (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
+ var out = ''
+ for (var i = start; i < end; ++i) {
+ out += toHex(buf[i])
}
- return x.millerRabin(t)
+ return out
}
-// (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
- }
+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 true
+ return res
}
-// 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
+Buffer.prototype.slice = function slice (start, end) {
+ var len = this.length
+ start = ~~start
+ end = end === undefined ? len : ~~end
-},{"../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')
+ if (start < 0) {
+ start += len
+ if (start < 0) start = 0
+ } else if (start > len) {
+ start = len
+ }
-/**
- * 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))
+ if (end < 0) {
+ end += len
+ if (end < 0) end = 0
+ } else if (end > len) {
+ end = len
}
- return new BigInteger(byteArray)
+ if (end < start) end = start
+
+ var newBuf = this.subarray(start, end)
+ // Return an augmented `Uint8Array` instance
+ newBuf.__proto__ = Buffer.prototype
+ return newBuf
}
-/**
- * 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.
+/*
+ * Need to make sure that buffer isn't trying to write out of bounds.
*/
-BigInteger.prototype.toByteArrayUnsigned = function() {
- var byteArray = this.toByteArray()
- return byteArray[0] === 0 ? byteArray.slice(1) : byteArray
+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')
}
-BigInteger.fromDERInteger = function(byteArray) {
- return new BigInteger(byteArray)
-}
+Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
-/*
- * 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
+ var val = this[offset]
+ var mul = 1
+ var i = 0
+ while (++i < byteLength && (mul *= 0x100)) {
+ val += this[offset + i] * mul
+ }
-BigInteger.fromBuffer = function(buffer) {
- // BigInteger expects a DER integer conformant byte array
- if (buffer[0] & 0x80) {
- var byteArray = Array.prototype.slice.call(buffer)
+ return val
+}
- return new BigInteger([0].concat(byteArray))
+Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) {
+ checkOffset(offset, byteLength, this.length)
}
- return new BigInteger(buffer)
+ var val = this[offset + --byteLength]
+ var mul = 1
+ while (byteLength > 0 && (mul *= 0x100)) {
+ val += this[offset + --byteLength] * mul
+ }
+
+ return val
}
-BigInteger.fromHex = function(hex) {
- if (hex === '') return BigInteger.ZERO
+Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 1, this.length)
+ return this[offset]
+}
- 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)
+Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return this[offset] | (this[offset + 1] << 8)
}
-BigInteger.prototype.toBuffer = function(size) {
- var byteArray = this.toByteArrayUnsigned()
- var zeros = []
-
- var padding = size - byteArray.length
- while (zeros.length < padding) zeros.push(0)
-
- return new Buffer(zeros.concat(byteArray))
-}
-
-BigInteger.prototype.toHex = function(size) {
- return this.toBuffer(size).toString('hex')
+Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return (this[offset] << 8) | this[offset + 1]
}
-}).call(this,require("buffer").Buffer)
-},{"./bigi":1,"assert":5,"buffer":7}],3:[function(require,module,exports){
-var BigInteger = require('./bigi')
-
-//addons
-require('./convert')
+Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
-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"
- }
- ],
- "directories": {},
- "_shasum": "90ac1aeac0a531216463bdb58f42c1e05c8407ac",
- "_resolved": "https://registry.npmjs.org/bigi/-/bigi-1.4.0.tgz"
+ return ((this[offset]) |
+ (this[offset + 1] << 8) |
+ (this[offset + 2] << 16)) +
+ (this[offset + 3] * 0x1000000)
}
-},{}],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.
-
-// 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 pSlice = Array.prototype.slice;
-var hasOwn = Object.prototype.hasOwnProperty;
-
-// 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.
+Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
-var assert = module.exports = ok;
+ return (this[offset] * 0x1000000) +
+ ((this[offset + 1] << 16) |
+ (this[offset + 2] << 8) |
+ this[offset + 3])
+}
-// 2. The AssertionError is defined in assert.
-// new assert.AssertionError({ message: message,
-// actual: actual,
-// expected: expected })
+Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
-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 val = this[offset]
+ var mul = 1
+ var i = 0
+ while (++i < byteLength && (mul *= 0x100)) {
+ val += this[offset + i] * mul
}
- var stackStartFunction = options.stackStartFunction || fail;
+ mul *= 0x80
- 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;
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
- // 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);
- }
+ return val
+}
- this.stack = out;
- }
+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
-// assert.AssertionError instanceof Error
-util.inherits(assert.AssertionError, Error);
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
-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();
- }
- return value;
+ return val
}
-function truncate(s, n) {
- if (util.isString(s)) {
- return s.length < n ? s : s.slice(0, n);
- } else {
- return s;
- }
+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)
}
-function getMessage(self) {
- return truncate(JSON.stringify(self.actual, replacer), 128) + ' ' +
- self.operator + ' ' +
- truncate(JSON.stringify(self.expected, replacer), 128);
+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
}
-// 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.
+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
+}
-// 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.
+Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
-function fail(actual, expected, message, operator, stackStartFunction) {
- throw new assert.AssertionError({
- message: message,
- actual: actual,
- expected: expected,
- operator: operator,
- stackStartFunction: stackStartFunction
- });
+ return (this[offset]) |
+ (this[offset + 1] << 8) |
+ (this[offset + 2] << 16) |
+ (this[offset + 3] << 24)
}
-// 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);.
+Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
-function ok(value, message) {
- if (!value) fail(value, true, message, '==', assert.ok);
+ return (this[offset] << 24) |
+ (this[offset + 1] << 16) |
+ (this[offset + 2] << 8) |
+ (this[offset + 3])
}
-assert.ok = ok;
-// 5. The equality assertion tests shallow, coercive equality with
-// ==.
-// assert.equal(actual, expected, message_opt);
+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)
+}
-assert.equal = function equal(actual, expected, message) {
- if (actual != expected) fail(actual, expected, message, '==', assert.equal);
-};
+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)
+}
-// 6. The non-equality assertion tests for whether two objects are not equal
-// with != assert.notEqual(actual, expected, message_opt);
+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)
+}
-assert.notEqual = function notEqual(actual, expected, message) {
- if (actual == expected) {
- fail(actual, expected, message, '!=', assert.notEqual);
- }
-};
+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)
+}
-// 7. The equivalence assertion tests a deep equality relation.
-// assert.deepEqual(actual, expected, message_opt);
+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')
+}
-assert.deepEqual = function deepEqual(actual, expected, message) {
- if (!_deepEqual(actual, expected)) {
- fail(actual, expected, message, 'deepEqual', assert.deepEqual);
+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 _deepEqual(actual, expected) {
- // 7.1. All identical values are equivalent, as determined by ===.
- if (actual === expected) {
- return true;
+ var mul = 1
+ var i = 0
+ this[offset] = value & 0xFF
+ while (++i < byteLength && (mul *= 0x100)) {
+ this[offset + i] = (value / mul) & 0xFF
+ }
- } else if (util.isBuffer(actual) && util.isBuffer(expected)) {
- if (actual.length != expected.length) return false;
+ return offset + byteLength
+}
- for (var i = 0; i < actual.length; i++) {
- if (actual[i] !== expected[i]) return false;
- }
+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)
+ }
- return true;
+ var i = byteLength - 1
+ var mul = 1
+ this[offset + i] = value & 0xFF
+ while (--i >= 0 && (mul *= 0x100)) {
+ this[offset + i] = (value / mul) & 0xFF
+ }
- // 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();
+ return offset + byteLength
+}
- // 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;
+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
+}
- // 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;
+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
+}
- // 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);
- }
+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
}
-function isArguments(object) {
- return Object.prototype.toString.call(object) == '[object Arguments]';
+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
}
-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;
+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
}
-// 8. The non-equivalence assertion tests for any deep inequality.
-// assert.notDeepEqual(actual, expected, message_opt);
+Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ var limit = Math.pow(2, (8 * byteLength) - 1)
-assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
- if (_deepEqual(actual, expected)) {
- fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
+ checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
-};
-
-// 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);
+ 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
}
-};
-// 10. The strict non-equality assertion tests for strict inequality, as
-// determined by !==. assert.notStrictEqual(actual, expected, message_opt);
+ return offset + byteLength
+}
-assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
- if (actual === expected) {
- fail(actual, expected, message, '!==', assert.notStrictEqual);
- }
-};
+Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ var limit = Math.pow(2, (8 * byteLength) - 1)
-function expectedException(actual, expected) {
- if (!actual || !expected) {
- return false;
+ checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
- 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;
+ 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 false;
+ return offset + byteLength
}
-function _throws(shouldThrow, block, expected, message) {
- var actual;
+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
+}
- if (util.isString(expected)) {
- message = expected;
- expected = null;
- }
+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
+}
- try {
- block();
- } catch (e) {
- actual = e;
- }
+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
+}
- message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
- (message ? ' ' + message : '.');
+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
+}
- if (shouldThrow && !actual) {
- fail(actual, expected, 'Missing expected exception' + message);
- }
+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
+}
- if (!shouldThrow && expectedException(actual, expected)) {
- fail(actual, expected, 'Got unwanted exception' + message);
- }
+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')
+}
- if ((shouldThrow && actual && expected &&
- !expectedException(actual, expected)) || (!shouldThrow && actual)) {
- throw actual;
+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
}
-// 11. Expected to throw an error:
-// assert.throws(block, Error_opt, message_opt);
-
-assert.throws = function(block, /*optional*/error, /*optional*/message) {
- _throws.apply(this, [true].concat(pSlice.call(arguments)));
-};
-
-// EXTENSION! This is annoying to write outside this module.
-assert.doesNotThrow = function(block, /*optional*/message) {
- _throws.apply(this, [false].concat(pSlice.call(arguments)));
-};
+Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
+ return writeFloat(this, value, offset, true, noAssert)
+}
-assert.ifError = function(err) { if (err) {throw err;}};
+Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
+ return writeFloat(this, value, offset, false, noAssert)
+}
-var objectKeys = Object.keys || function (obj) {
- var keys = [];
- for (var key in obj) {
- if (hasOwn.call(obj, key)) keys.push(key);
+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 keys;
-};
+ ieee754.write(buf, value, offset, littleEndian, 52, 8)
+ return offset + 8
+}
-},{"util/":29}],6:[function(require,module,exports){
+Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, true, noAssert)
+}
-},{}],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
- */
+Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, false, noAssert)
+}
-var base64 = require('base64-js')
-var ieee754 = require('ieee754')
-var isArray = require('is-array')
+// 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
-exports.Buffer = Buffer
-exports.SlowBuffer = SlowBuffer
-exports.INSPECT_MAX_BYTES = 50
-Buffer.poolSize = 8192 // not used by this implementation
+ // Copy 0 bytes; we're done
+ if (end === start) return 0
+ if (target.length === 0 || this.length === 0) return 0
-var rootParent = {}
+ // 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')
-/**
- * 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.
+ // Are we oob?
+ if (end > this.length) end = this.length
+ if (target.length - targetStart < end - start) {
+ end = target.length - targetStart + start
+ }
- * 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 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
+ )
}
-})()
-function kMaxLength () {
- return Buffer.TYPED_ARRAY_SUPPORT
- ? 0x7fffffff
- : 0x3fffffff
+ return len
}
-/**
- * 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)
+// 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
}
- this.length = 0
- this.parent = undefined
-
- // Common case.
- if (typeof arg === 'number') {
- return fromNumber(this, arg)
+ // 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')
}
- // Slightly less common case.
- if (typeof arg === 'string') {
- return fromString(this, arg, arguments.length > 1 ? arguments[1] : 'utf8')
+ if (end <= start) {
+ return this
}
- // Unusual.
- return fromObject(this, arg)
-}
+ start = start >>> 0
+ end = end === undefined ? this.length : end >>> 0
+
+ if (!val) val = 0
-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
+ 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 that
+
+ return this
}
-function fromString (that, string, encoding) {
- if (typeof encoding !== 'string' || encoding === '') encoding = 'utf8'
+// HELPER FUNCTIONS
+// ================
+
+var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
- // Assumption: byteLength() return value is always < kMaxLength.
- var length = byteLength(string, encoding) | 0
- that = allocate(that, length)
+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
+}
- that.write(string, encoding)
- return that
+function toHex (n) {
+ if (n < 16) return '0' + n.toString(16)
+ return n.toString(16)
}
-function fromObject (that, object) {
- if (Buffer.isBuffer(object)) return fromBuffer(that, object)
+function utf8ToBytes (string, units) {
+ units = units || Infinity
+ var codePoint
+ var length = string.length
+ var leadSurrogate = null
+ var bytes = []
- if (isArray(object)) return fromArray(that, object)
+ for (var i = 0; i < length; ++i) {
+ codePoint = string.charCodeAt(i)
- if (object == null) {
- throw new TypeError('must start with number, buffer, array or string')
- }
+ // 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
+ }
- if (typeof ArrayBuffer !== 'undefined') {
- if (object.buffer instanceof ArrayBuffer) {
- return fromTypedArray(that, object)
+ // 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)
}
- if (object instanceof ArrayBuffer) {
- return fromArrayBuffer(that, object)
+
+ 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')
}
}
- if (object.length) return fromArrayLike(that, object)
-
- return fromJsonObject(that, object)
+ return bytes
}
-function fromBuffer (that, buffer) {
- var length = checked(buffer.length) | 0
- that = allocate(that, length)
- buffer.copy(that, 0, 0, length)
- return that
+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 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
+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 that
+
+ return byteArray
}
-// 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 base64ToBytes (str) {
+ return base64.toByteArray(base64clean(str))
}
-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))
+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 that
+ return i
}
-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 that
+// Node 0.10 supports `ArrayBuffer` but lacks `ArrayBuffer.isView`
+function isArrayBufferView (obj) {
+ return (typeof ArrayBuffer.isView === 'function') && ArrayBuffer.isView(obj)
}
-// 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
+function numberIsNaN (obj) {
+ return obj !== obj // eslint-disable-line no-self-compare
+}
- if (object.type === 'Buffer' && isArray(object.data)) {
- array = object.data
- length = checked(array.length) | 0
- }
- that = allocate(that, length)
+},{"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]
- for (var i = 0; i < length; i += 1) {
- that[i] = array[i] & 255
+ 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 that
+ return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}
-function allocate (that, length) {
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- // Return an augmented `Uint8Array` instance, for best performance
- that = Buffer._augment(new Uint8Array(length))
+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 {
- // Fallback: Return an object instance of the Buffer class
- that.length = length
- that._isBuffer = true
+ 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
+ }
}
- var fromPool = length !== 0 && length <= Buffer.poolSize >>> 1
- if (fromPool) that.parent = rootParent
+ 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) {}
- return that
+ buffer[offset + i - d] |= s * 128
}
-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
-}
+},{}],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
-function SlowBuffer (subject, encoding) {
- if (!(this instanceof SlowBuffer)) return new SlowBuffer(subject, encoding)
+var Buffer = require('safe-buffer').Buffer
- var buf = new Buffer(subject, encoding)
- delete buf.parent
- return buf
-}
+module.exports = function base (ALPHABET) {
+ var ALPHABET_MAP = {}
+ var BASE = ALPHABET.length
+ var LEADER = ALPHABET.charAt(0)
-Buffer.isBuffer = function isBuffer (b) {
- return !!(b != null && b._isBuffer)
-}
+ // pre-compute lookup table
+ for (var z = 0; z < ALPHABET.length; z++) {
+ var x = ALPHABET.charAt(z)
-Buffer.compare = function compare (a, b) {
- if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
- throw new TypeError('Arguments must be Buffers')
+ if (ALPHABET_MAP[x] !== undefined) throw new TypeError(x + ' is ambiguous')
+ ALPHABET_MAP[x] = z
}
- if (a === b) return 0
+ function encode (source) {
+ if (source.length === 0) return ''
- var x = a.length
- var y = b.length
+ 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
+ }
- var i = 0
- var len = Math.min(x, y)
- while (i < len) {
- if (a[i] !== b[i]) break
+ while (carry > 0) {
+ digits.push(carry % BASE)
+ carry = (carry / BASE) | 0
+ }
+ }
- ++i
- }
+ var string = ''
- if (i !== len) {
- x = a[i]
- y = b[i]
+ // 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]]
+
+ return string
}
- if (x < y) return -1
- if (y < x) return 1
- return 0
-}
+ function decodeUnsafe (string) {
+ if (string.length === 0) return Buffer.allocUnsafe(0)
-Buffer.isEncoding = function isEncoding (encoding) {
- switch (String(encoding).toLowerCase()) {
- case 'hex':
- case 'utf8':
- case 'utf-8':
- case 'ascii':
- case 'binary':
- case 'base64':
- case 'raw':
- case 'ucs2':
- case 'ucs-2':
- case 'utf16le':
- case 'utf-16le':
- return true
- default:
- return false
- }
-}
+ var bytes = [0]
+ for (var i = 0; i < string.length; i++) {
+ var value = ALPHABET_MAP[string[i]]
+ if (value === undefined) return
-Buffer.concat = function concat (list, length) {
- if (!isArray(list)) throw new TypeError('list argument must be an Array of Buffers.')
+ for (var j = 0, carry = value; j < bytes.length; ++j) {
+ carry += bytes[j] * BASE
+ bytes[j] = carry & 0xff
+ carry >>= 8
+ }
- if (list.length === 0) {
- return new Buffer(0)
- }
+ while (carry > 0) {
+ bytes.push(carry & 0xff)
+ carry >>= 8
+ }
+ }
- var i
- if (length === undefined) {
- length = 0
- for (i = 0; i < list.length; i++) {
- length += list[i].length
+ // deal with leading zeros
+ for (var k = 0; string[k] === LEADER && k < string.length - 1; ++k) {
+ bytes.push(0)
}
+
+ return Buffer.from(bytes.reverse())
}
- 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
+ function decode (string) {
+ var buffer = decodeUnsafe(string)
+ if (buffer) return buffer
+
+ throw new Error('Non-base' + BASE + ' character')
+ }
+
+ return {
+ encode: encode,
+ decodeUnsafe: decodeUnsafe,
+ decode: decode
}
- return buf
}
-function byteLength (string, encoding) {
- if (typeof string !== 'string') string = '' + string
+},{"safe-buffer":6}],6:[function(require,module,exports){
+module.exports = require('buffer')
- var len = string.length
- if (len === 0) return 0
+},{"buffer":2}]},{},[4])(4)
+});</script>
+ <script>(function (root) {
+ "use strict";
- // 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
- }
- }
-}
-Buffer.byteLength = byteLength
+/***** unorm.js *****/
-// pre-set for values that may exist in the future
-Buffer.prototype.length = undefined
-Buffer.prototype.parent = undefined
+/*
+ * 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 $
+ */
-function slowToString (encoding, start, end) {
- var loweredCase = false
+ 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 UChar = function(cp, feature){
+ this.codepoint = cp;
+ this.feature = feature;
+ };
+
+ // Strategies
+ var cache = {};
+ var cacheCounter = [];
+ for (var i = 0; i <= 0xFF; ++i){
+ cacheCounter[i] = 0;
+ }
+
+ 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;
+ }
+
+ 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]);
+ }
- start = start | 0
- end = end === undefined || end === Infinity ? this.length : end | 0
+ 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);
+ }
- if (!encoding) encoding = 'utf8'
- if (start < 0) start = 0
- if (end > this.length) end = this.length
- if (end <= start) return ''
+ var strategies = [fromCpFilter, fromCache, fromCpOnly, fromRuleBasedJamo, fromData];
- while (true) {
- switch (encoding) {
- case 'hex':
- return hexSlice(this, start, end)
+ UChar.fromCharCode = strategies.reduceRight(function (next, strategy) {
+ return function (cp, needFeature) {
+ return strategy(next, cp, needFeature);
+ };
+ }, null);
+
+ UChar.isHighSurrogate = function(cp){
+ return cp >= 0xD800 && cp <= 0xDBFF;
+ };
+ UChar.isLowSurrogate = function(cp){
+ return cp >= 0xDC00 && cp <= 0xDFFF;
+ };
+
+ UChar.prototype.prepFeature = function(){
+ if(!this.feature){
+ this.feature = UChar.fromCharCode(this.codepoint, true).feature;
+ }
+ };
- case 'utf8':
- case 'utf-8':
- return utf8Slice(this, start, end)
+ 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);
+ }
+ };
+
+ UChar.prototype.getDecomp = function(){
+ this.prepFeature();
+ return this.feature[0] || null;
+ };
+
+ 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;
+ };
+
+ 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={
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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;
+ });
- case 'ascii':
- return asciiSlice(this, start, end)
+ // Global
+ } else {
+ root.unorm = unorm;
+ }
- case 'binary':
- return binarySlice(this, start, end)
+ /***** Export as shim for String::normalize method *****/
+ /*
+ http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts#november_8_2013_draft_rev_21
- case 'base64':
- return base64Slice(this, start, end)
+ 21.1.3.12 String.prototype.normalize(form="NFC")
+ When the normalize method is called with one argument form, the following steps are taken:
- case 'ucs2':
- case 'ucs-2':
- case 'utf16le':
- case 'utf-16le':
- return utf16leSlice(this, start, end)
+ 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.
- default:
- if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
- encoding = (encoding + '').toLowerCase()
- loweredCase = true
+ 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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+ if (str1 === str2) return 0;
+ if (str1.length === 0) return str2.length;
+ if (str2.length === 0) return str1.length;
-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)
-}
+ // two rows
+ var prevRow = new Array(str2.length + 1),
+ curCol, nextCol, i, j, tmp;
-Buffer.prototype.indexOf = function indexOf (val, byteOffset) {
- if (byteOffset > 0x7fffffff) byteOffset = 0x7fffffff
- else if (byteOffset < -0x80000000) byteOffset = -0x80000000
- byteOffset >>= 0
+ // initialise previous row
+ for (i=0; i<prevRow.length; ++i) {
+ prevRow[i] = i;
+ }
- if (this.length === 0) return -1
- if (byteOffset >= this.length) return -1
+ // calculate current row distance from previous row
+ for (i=0; i<str1.length; ++i) {
+ nextCol = i + 1;
- // Negative offsets start from the end of the buffer
- if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0)
+ for (j=0; j<str2.length; ++j) {
+ curCol = nextCol;
- 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)
- }
- return arrayIndexOf(this, [ val ], byteOffset)
- }
+ // 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;
+ }
- 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
+ // 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 -1
- }
- throw new TypeError('val must be string, number or Buffer')
-}
+ return nextCol;
+ },
-// `get` is deprecated
-Buffer.prototype.get = function get (offset) {
- console.log('.get() is deprecated. Access using array indexes instead.')
- return this.readUInt8(offset)
-}
+ /**
+ * 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);
-// `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)
-}
+ // 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);
-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
- }
- }
+ // two rows
+ var prevRow = new Array(str2.length + 1),
+ curCol, nextCol,
+ i, j, tmp,
+ startTime, currentTime;
- // must be an even number of digits
- var strLen = string.length
- if (strLen % 2 !== 0) throw new Error('Invalid hex string')
+ // initialise previous row
+ for (i=0; i<prevRow.length; ++i) {
+ prevRow[i] = i;
+ }
- 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
-}
+ nextCol = 1;
+ i = 0;
+ j = -1;
-function utf8Write (buf, string, offset, length) {
- return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
-}
+ var __calculate = function() {
+ // reset timer
+ startTime = new Date().valueOf();
+ currentTime = startTime;
-function asciiWrite (buf, string, offset, length) {
- return blitBuffer(asciiToBytes(string), buf, offset, length)
-}
+ // 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;
-function binaryWrite (buf, string, offset, length) {
- return asciiWrite(buf, string, offset, length)
-}
+ // 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;
+ }
+ }
-function base64Write (buf, string, offset, length) {
- return blitBuffer(base64ToBytes(string), buf, offset, length)
-}
+ // calculation
+ curCol = nextCol;
-function ucs2Write (buf, string, offset, length) {
- return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
-}
+ // 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;
+ }
-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
- } else {
- var swap = encoding
- encoding = offset
- offset = length | 0
- length = swap
- }
+ // copy current into previous (in preparation for next iteration)
+ prevRow[j] = curCol;
- var remaining = this.length - offset
- if (length === undefined || length > remaining) length = remaining
+ // get current time
+ currentTime = new Date().valueOf();
+ }
- if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
- throw new RangeError('attempt to write outside buffer bounds')
- }
+ // 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());
+ }
+ }
- if (!encoding) encoding = 'utf8'
+ // next iteration
+ _defer(__calculate);
+ };
- var loweredCase = false
- for (;;) {
- switch (encoding) {
- case 'hex':
- return hexWrite(this, string, offset, length)
+ __calculate();
+ }
- case 'utf8':
- case 'utf-8':
- return utf8Write(this, string, offset, length)
+ };
- case 'ascii':
- return asciiWrite(this, string, offset, length)
+ // 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;
+ }
+}());
- case 'binary':
- return binaryWrite(this, string, offset, length)
+</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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+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.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';
- case 'base64':
- // Warning: maxLength not taken into account in base64Write
- return base64Write(this, string, offset, length)
+// compare and isBuffer taken from https://github.com/feross/buffer/blob/680e9e5e488f22aac27599a57dc844a6315928dd/index.js
+// original notice:
- case 'ucs2':
- case 'ucs-2':
- case 'utf16le':
- case 'utf-16le':
- return ucs2Write(this, string, offset, length)
+/*!
+ * 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;
+ }
- default:
- if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
- encoding = ('' + encoding).toLowerCase()
- loweredCase = true
+ 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;
}
}
-}
-Buffer.prototype.toJSON = function toJSON () {
- return {
- type: 'Buffer',
- data: Array.prototype.slice.call(this._arr || this, 0)
+ if (x < y) {
+ return -1;
+ }
+ if (y < x) {
+ return 1;
}
+ return 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 isBuffer(b) {
+ if (global.Buffer && typeof global.Buffer.isBuffer === 'function') {
+ return global.Buffer.isBuffer(b);
}
+ return !!(b != null && b._isBuffer);
}
-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
-
- for (; i < end; i += bytesPerSequence) {
- firstByte = buf[i]
- codePoint = 0xFFFD
+// based on node assert, original notice:
- if (firstByte > 0xEF) {
- bytesPerSequence = 4
- } else if (firstByte > 0xDF) {
- bytesPerSequence = 3
- } else if (firstByte > 0xBF) {
- bytesPerSequence = 2
- } else {
- bytesPerSequence = 1
- }
+// 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.
- 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
- }
- }
- }
- }
-
- 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
- }
-
- res.push(codePoint)
- }
-
- return String.fromCharCode.apply(String, res)
+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 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)
+function isView(arrbuf) {
+ if (isBuffer(arrbuf)) {
+ return false;
}
- return ret
-}
-
-function binarySlice (buf, start, end) {
- var ret = ''
- end = Math.min(buf.length, end)
-
- for (var i = start; i < end; i++) {
- ret += String.fromCharCode(buf[i])
+ if (typeof global.ArrayBuffer !== 'function') {
+ return false;
}
- return ret
+ 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.
-function hexSlice (buf, start, end) {
- var len = buf.length
+var assert = module.exports = ok;
- if (!start || start < 0) start = 0
- if (!end || end < 0 || end > len) end = len
+// 2. The AssertionError is defined in assert.
+// new assert.AssertionError({ message: message,
+// actual: actual,
+// expected: expected })
- var out = ''
- for (var i = start; i < end; i++) {
- out += toHex(buf[i])
+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;
}
- 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)
+ if (functionsHaveNames) {
+ return func.name;
}
- return res
+ var str = func.toString();
+ var match = str.match(regex);
+ return match && match[1];
}
-
-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
+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;
- if (end < start) end = start
+ // 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);
+ }
- 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]
+ this.stack = out;
}
}
+};
- if (newBuf.length) newBuf.parent = this.parent || this
-
- return newBuf
-}
+// assert.AssertionError instanceof Error
+util.inherits(assert.AssertionError, Error);
-/*
- * 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')
+function truncate(s, n) {
+ if (typeof s === 'string') {
+ return s.length < n ? s : s.slice(0, n);
+ } else {
+ return s;
+ }
}
-
-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
+function inspect(something) {
+ if (functionsHaveNames || !util.isFunction(something)) {
+ return util.inspect(something);
}
-
- return val
+ 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);
}
-Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
- offset = offset | 0
- byteLength = byteLength | 0
- if (!noAssert) {
- checkOffset(offset, byteLength, this.length)
- }
+// 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.
- var val = this[offset + --byteLength]
- var mul = 1
- while (byteLength > 0 && (mul *= 0x100)) {
- val += this[offset + --byteLength] * mul
- }
+// 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.
- return val
+function fail(actual, expected, message, operator, stackStartFunction) {
+ throw new assert.AssertionError({
+ message: message,
+ actual: actual,
+ expected: expected,
+ operator: operator,
+ stackStartFunction: stackStartFunction
+ });
}
-Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 1, this.length)
- return this[offset]
-}
+// EXTENSION! allows for well behaved errors defined elsewhere.
+assert.fail = fail;
-Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 2, this.length)
- return this[offset] | (this[offset + 1] << 8)
-}
+// 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);.
-Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 2, this.length)
- return (this[offset] << 8) | this[offset + 1]
+function ok(value, message) {
+ if (!value) fail(value, true, message, '==', assert.ok);
}
+assert.ok = ok;
-Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
+// 5. The equality assertion tests shallow, coercive equality with
+// ==.
+// assert.equal(actual, expected, message_opt);
- return ((this[offset]) |
- (this[offset + 1] << 8) |
- (this[offset + 2] << 16)) +
- (this[offset + 3] * 0x1000000)
-}
+assert.equal = function equal(actual, expected, message) {
+ if (actual != expected) fail(actual, expected, message, '==', assert.equal);
+};
-Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
+// 6. The non-equality assertion tests for whether two objects are not equal
+// with != assert.notEqual(actual, expected, message_opt);
- return (this[offset] * 0x1000000) +
- ((this[offset + 1] << 16) |
- (this[offset + 2] << 8) |
- this[offset + 3])
-}
+assert.notEqual = function notEqual(actual, expected, message) {
+ if (actual == expected) {
+ fail(actual, expected, message, '!=', assert.notEqual);
+ }
+};
-Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
- offset = offset | 0
- byteLength = byteLength | 0
- if (!noAssert) checkOffset(offset, byteLength, this.length)
+// 7. The equivalence assertion tests a deep equality relation.
+// assert.deepEqual(actual, expected, message_opt);
- var val = this[offset]
- var mul = 1
- var i = 0
- while (++i < byteLength && (mul *= 0x100)) {
- val += this[offset + i] * mul
+assert.deepEqual = function deepEqual(actual, expected, message) {
+ if (!_deepEqual(actual, expected, false)) {
+ fail(actual, expected, message, 'deepEqual', assert.deepEqual);
}
- mul *= 0x80
+};
- if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) {
+ if (!_deepEqual(actual, expected, true)) {
+ fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual);
+ }
+};
- return val
-}
+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;
-Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
- offset = offset | 0
- byteLength = byteLength | 0
- if (!noAssert) checkOffset(offset, byteLength, this.length)
+ // 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();
- var i = byteLength
- var mul = 1
- var val = this[offset + --i]
- while (i > 0 && (mul *= 0x100)) {
- val += this[offset + --i] * mul
- }
- mul *= 0x80
+ // 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;
- if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+ // 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;
- return val
-}
+ // 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;
-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)
-}
+ // 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: []};
-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
-}
+ var actualIndex = memos.actual.indexOf(actual);
+ if (actualIndex !== -1) {
+ if (actualIndex === memos.expected.indexOf(expected)) {
+ return true;
+ }
+ }
-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
+ memos.actual.push(actual);
+ memos.expected.push(expected);
+
+ return objEquiv(actual, expected, strict, memos);
+ }
}
-Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
+function isArguments(object) {
+ return Object.prototype.toString.call(object) == '[object Arguments]';
+}
- return (this[offset]) |
- (this[offset + 1] << 8) |
- (this[offset + 2] << 16) |
- (this[offset + 3] << 24)
+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;
}
-Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
+// 8. The non-equivalence assertion tests for any deep inequality.
+// assert.notDeepEqual(actual, expected, message_opt);
- return (this[offset] << 24) |
- (this[offset + 1] << 16) |
- (this[offset + 2] << 8) |
- (this[offset + 3])
-}
+assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
+ if (_deepEqual(actual, expected, false)) {
+ fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
+ }
+};
-Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
- return ieee754.read(this, offset, true, 23, 4)
+assert.notDeepStrictEqual = notDeepStrictEqual;
+function notDeepStrictEqual(actual, expected, message) {
+ if (_deepEqual(actual, expected, true)) {
+ fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual);
+ }
}
-Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
- return ieee754.read(this, offset, false, 23, 4)
-}
-Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 8, this.length)
- return ieee754.read(this, offset, true, 52, 8)
-}
+// 9. The strict equality assertion tests strict equality, as determined by ===.
+// assert.strictEqual(actual, expected, message_opt);
-Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 8, this.length)
- return ieee754.read(this, offset, false, 52, 8)
-}
+assert.strictEqual = function strictEqual(actual, expected, message) {
+ if (actual !== expected) {
+ fail(actual, expected, message, '===', assert.strictEqual);
+ }
+};
-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')
-}
+// 10. The strict non-equality assertion tests for strict inequality, as
+// determined by !==. assert.notStrictEqual(actual, expected, message_opt);
-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)
+assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
+ if (actual === expected) {
+ fail(actual, expected, message, '!==', assert.notStrictEqual);
+ }
+};
- var mul = 1
- var i = 0
- this[offset] = value & 0xFF
- while (++i < byteLength && (mul *= 0x100)) {
- this[offset + i] = (value / mul) & 0xFF
+function expectedException(actual, expected) {
+ if (!actual || !expected) {
+ return false;
}
- return offset + byteLength
-}
+ if (Object.prototype.toString.call(expected) == '[object RegExp]') {
+ return expected.test(actual);
+ }
-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)
+ try {
+ if (actual instanceof expected) {
+ return true;
+ }
+ } catch (e) {
+ // Ignore. The instanceof check doesn't work for arrow functions.
+ }
- var i = byteLength - 1
- var mul = 1
- this[offset + i] = value & 0xFF
- while (--i >= 0 && (mul *= 0x100)) {
- this[offset + i] = (value / mul) & 0xFF
+ if (Error.isPrototypeOf(expected)) {
+ return false;
}
- return offset + byteLength
+ return expected.call({}, actual) === true;
}
-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
+function _tryBlock(block) {
+ var error;
+ try {
+ block();
+ } catch (e) {
+ error = e;
+ }
+ return error;
}
-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
+function _throws(shouldThrow, block, expected, message) {
+ var actual;
+
+ if (typeof block !== 'function') {
+ throw new TypeError('"block" argument must be a function');
}
-}
-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 (typeof expected === 'string') {
+ message = expected;
+ expected = null;
}
- 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)
+ actual = _tryBlock(block);
+
+ message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
+ (message ? ' ' + message : '.');
+
+ if (shouldThrow && !actual) {
+ fail(actual, expected, 'Missing expected exception' + message);
}
- 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
+ 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);
}
-}
-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)
+ if ((shouldThrow && actual && expected &&
+ !expectedException(actual, expected)) || (!shouldThrow && actual)) {
+ throw actual;
}
- 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)
- 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)
+// 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 offset + 4
+ 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
}
-Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
- value = +value
- offset = offset | 0
- if (!noAssert) {
- var limit = Math.pow(2, 8 * byteLength - 1)
+revLookup['-'.charCodeAt(0)] = 62
+revLookup['_'.charCodeAt(0)] = 63
- checkInt(this, value, offset, byteLength, limit - 1, -limit)
+function placeHoldersCount (b64) {
+ var len = b64.length
+ if (len % 4 > 0) {
+ throw new Error('Invalid string. Length must be a multiple of 4')
}
- 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
- }
+ // 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
+}
- return offset + byteLength
+function byteLength (b64) {
+ // base64 is 4/3 + up to two characters of the original data
+ return (b64.length * 3 / 4) - placeHoldersCount(b64)
}
-Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
- value = +value
- offset = offset | 0
- if (!noAssert) {
- var limit = Math.pow(2, 8 * byteLength - 1)
+function toByteArray (b64) {
+ var i, l, tmp, placeHolders, arr
+ var len = b64.length
+ placeHolders = placeHoldersCount(b64)
- checkInt(this, value, offset, byteLength, limit - 1, -limit)
+ 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
}
- 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 (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 offset + byteLength
+ return arr
}
-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
+function tripletToBase64 (num) {
+ return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
}
-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)
+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 offset + 2
+ return output.join('')
}
-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
-}
+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
-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)
+ // 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)))
}
- 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
- 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)
+ // 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 += '='
}
- 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')
-}
+ parts.push(output)
-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
+ return parts.join('')
}
-Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
- return writeFloat(this, value, offset, true, noAssert)
-}
+},{}],3:[function(require,module,exports){
-Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
- return writeFloat(this, value, offset, false, noAssert)
-}
+},{}],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 */
-function writeDouble (buf, value, offset, littleEndian, noAssert) {
- if (!noAssert) {
- checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
- }
- ieee754.write(buf, value, offset, littleEndian, 52, 8)
- return offset + 8
-}
+'use strict'
-Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
- return writeDouble(this, value, offset, true, noAssert)
-}
+var base64 = require('base64-js')
+var ieee754 = require('ieee754')
-Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
- return writeDouble(this, value, offset, false, noAssert)
-}
+exports.Buffer = Buffer
+exports.SlowBuffer = SlowBuffer
+exports.INSPECT_MAX_BYTES = 50
-// 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
+var K_MAX_LENGTH = 0x7fffffff
+exports.kMaxLength = K_MAX_LENGTH
- // Copy 0 bytes; we're done
- if (end === start) return 0
- if (target.length === 0 || this.length === 0) return 0
+/**
+ * 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()
- // Fatal error conditions
- if (targetStart < 0) {
- throw new RangeError('targetStart out of bounds')
+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
}
- 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 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
+}
- var len = end - start
- var i
+/**
+ * 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.
+ */
- 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]
+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'
+ )
}
- } else {
- target._set(this.subarray(start, start + len), targetStart)
+ return allocUnsafe(arg)
}
-
- return len
+ return from(arg, encodingOrOffset, length)
}
-// 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
+// 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
+ })
+}
- if (end < start) throw new RangeError('end < start')
+Buffer.poolSize = 8192 // not used by this implementation
- // Fill 0 bytes; we're done
- if (end === start) return
- if (this.length === 0) return
+function from (value, encodingOrOffset, length) {
+ if (typeof value === 'number') {
+ throw new TypeError('"value" argument must not be a number')
+ }
- 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')
+ if (value instanceof ArrayBuffer) {
+ return fromArrayBuffer(value, encodingOrOffset, length)
+ }
- 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]
- }
+ if (typeof value === 'string') {
+ return fromString(value, encodingOrOffset)
}
- return this
+ return fromObject(value)
}
/**
- * 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
- }
- } else {
- throw new TypeError('Buffer.toArrayBuffer not supported in this browser')
- }
+ * 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)
}
-// HELPER FUNCTIONS
-// ================
-
-var BP = Buffer.prototype
-
-/**
- * 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
+// 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
- return arr
+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')
+ }
}
-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 = 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 + '='
+function alloc (size, fill, encoding) {
+ assertSize(size)
+ if (size <= 0) {
+ return createBuffer(size)
}
- return str
+ 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)
}
-function stringtrim (str) {
- if (str.trim) return str.trim()
- return str.replace(/^\s+|\s+$/g, '')
+/**
+ * Creates a new filled Buffer instance.
+ * alloc(size[, fill[, encoding]])
+ **/
+Buffer.alloc = function (size, fill, encoding) {
+ return alloc(size, fill, encoding)
}
-function toHex (n) {
- if (n < 16) return '0' + n.toString(16)
- return n.toString(16)
+function allocUnsafe (size) {
+ assertSize(size)
+ return createBuffer(size < 0 ? 0 : checked(size) | 0)
}
-function utf8ToBytes (string, units) {
- units = units || Infinity
- var codePoint
- var length = string.length
- var leadSurrogate = null
- var bytes = []
+/**
+ * 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)
+}
- for (var i = 0; i < length; i++) {
- codePoint = string.charCodeAt(i)
+function fromString (string, encoding) {
+ if (typeof encoding !== 'string' || encoding === '') {
+ encoding = 'utf8'
+ }
- // 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
+ if (!Buffer.isEncoding(encoding)) {
+ throw new TypeError('"encoding" must be a valid string encoding')
+ }
- } else if (i + 1 === length) {
- // unpaired lead
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- continue
- }
+ var length = byteLength(string, encoding) | 0
+ var buf = createBuffer(length)
- // valid lead
- leadSurrogate = codePoint
+ var actual = buf.write(string, encoding)
- continue
- }
+ 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)
+ }
- // 2 leads in a row
- if (codePoint < 0xDC00) {
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- leadSurrogate = codePoint
- continue
- }
+ return buf
+}
- // valid surrogate pair
- codePoint = leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00 | 0x10000
+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
+}
- } else if (leadSurrogate) {
- // valid bmp char, but last char was a lead
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- }
+function fromArrayBuffer (array, byteOffset, length) {
+ if (byteOffset < 0 || array.byteLength < byteOffset) {
+ throw new RangeError('\'offset\' is out of bounds')
+ }
- leadSurrogate = null
+ if (array.byteLength < byteOffset + (length || 0)) {
+ throw new RangeError('\'length\' is out of bounds')
+ }
- // 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')
- }
+ 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 bytes
+ // Return an augmented `Uint8Array` instance
+ buf.__proto__ = Buffer.prototype
+ return buf
}
-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)
+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
}
- 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
+ if (obj) {
+ if (isArrayBufferView(obj) || 'length' in obj) {
+ if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
+ return createBuffer(0)
+ }
+ return fromArrayLike(obj)
+ }
- c = str.charCodeAt(i)
- hi = c >> 8
- lo = c % 256
- byteArray.push(lo)
- byteArray.push(hi)
+ if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
+ return fromArrayLike(obj.data)
+ }
}
- return byteArray
+ throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
}
-function base64ToBytes (str) {
- return base64.toByteArray(base64clean(str))
+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 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 SlowBuffer (length) {
+ if (+length != length) { // eslint-disable-line eqeqeq
+ length = 0
}
- return i
+ return Buffer.alloc(+length)
}
-},{"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
- }
+Buffer.isBuffer = function isBuffer (b) {
+ return b != null && b._isBuffer === true
+}
- function b64ToByteArray (b64) {
- var i, j, l, tmp, placeHolders, arr
+Buffer.compare = function compare (a, b) {
+ if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
+ throw new TypeError('Arguments must be Buffers')
+ }
- if (b64.length % 4 > 0) {
- throw new Error('Invalid string. Length must be a multiple of 4')
- }
+ if (a === b) return 0
- // 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 x = a.length
+ var y = b.length
- // base64 is 4/3 + up to two characters of the original data
- arr = new Arr(b64.length * 3 / 4 - placeHolders)
+ 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 there are placeholders, only get up to the last complete 4 chars
- l = placeHolders > 0 ? b64.length - 4 : b64.length
+ if (x < y) return -1
+ if (y < x) return 1
+ return 0
+}
- var L = 0
+Buffer.isEncoding = function isEncoding (encoding) {
+ switch (String(encoding).toLowerCase()) {
+ case 'hex':
+ case 'utf8':
+ case 'utf-8':
+ case 'ascii':
+ case 'latin1':
+ case 'binary':
+ case 'base64':
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return true
+ default:
+ return false
+ }
+}
- function push (v) {
- arr[L++] = v
- }
+Buffer.concat = function concat (list, length) {
+ if (!Array.isArray(list)) {
+ throw new TypeError('"list" argument must be an Array of Buffers')
+ }
- 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)
- }
+ if (list.length === 0) {
+ return Buffer.alloc(0)
+ }
- 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 i
+ if (length === undefined) {
+ length = 0
+ for (i = 0; i < list.length; ++i) {
+ length += list[i].length
+ }
+ }
- return arr
- }
+ 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 uint8ToBase64 (uint8) {
- var i,
- extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
- output = "",
- temp, length
+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
+ }
- function encode (num) {
- return lookup.charAt(num)
- }
+ var len = string.length
+ if (len === 0) return 0
- function tripletToBase64 (num) {
- return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F)
- }
+ // 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
- // 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)
- }
+function slowToString (encoding, start, end) {
+ var loweredCase = false
- // 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
- }
+ // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
+ // property of a typed array.
- return output
- }
+ // 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 ''
+ }
- exports.toByteArray = b64ToByteArray
- exports.fromByteArray = uint8ToBase64
-}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))
+ if (end === undefined || end > this.length) {
+ end = this.length
+ }
-},{}],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]
+ if (end <= 0) {
+ return ''
+ }
- i += d
+ // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
+ end >>>= 0
+ start >>>= 0
- e = s & ((1 << (-nBits)) - 1)
- s >>= (-nBits)
- nBits += eLen
- for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+ if (end <= start) {
+ return ''
+ }
- m = e & ((1 << (-nBits)) - 1)
- e >>= (-nBits)
- nBits += mLen
- for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+ if (!encoding) encoding = 'utf8'
- 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)
-}
+ while (true) {
+ switch (encoding) {
+ case 'hex':
+ return hexSlice(this, start, end)
-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
+ case 'utf8':
+ case 'utf-8':
+ return utf8Slice(this, start, end)
- value = Math.abs(value)
+ case 'ascii':
+ return asciiSlice(this, start, end)
- 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
- }
+ case 'latin1':
+ case 'binary':
+ return latin1Slice(this, start, end)
- 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
+ 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
}
}
+}
- for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
+// 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
- e = (e << mLen) | m
- eLen += mLen
- for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+function swap (b, n, m) {
+ var i = b[n]
+ b[n] = b[m]
+ b[m] = i
+}
- buffer[offset + i - d] |= s * 128
+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
}
-},{}],10:[function(require,module,exports){
+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
+}
-/**
- * isArray
- */
+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
+}
-var isArray = Array.isArray;
+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)
+}
-/**
- * toString
- */
+Buffer.prototype.equals = function equals (b) {
+ if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
+ if (this === b) return true
+ return Buffer.compare(this, b) === 0
+}
-var str = Object.prototype.toString;
+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 + '>'
+}
-/**
- * Whether or not the given `val`
- * is an array.
- *
- * example:
- *
- * isArray([]);
- * // > true
- * isArray(arguments);
- * // > false
- * isArray('');
- * // > false
- *
- * @param {mixed} val
- * @return {bool}
- */
+Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
+ if (!Buffer.isBuffer(target)) {
+ throw new TypeError('Argument must be a Buffer')
+ }
-module.exports = isArray || function (val) {
- return !! val && '[object Array]' == str.call(val);
-};
+ if (start === undefined) {
+ start = 0
+ }
+ if (end === undefined) {
+ end = target ? target.length : 0
+ }
+ if (thisStart === undefined) {
+ thisStart = 0
+ }
+ if (thisEnd === undefined) {
+ thisEnd = this.length
+ }
-},{}],11:[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 (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
+ throw new RangeError('out of range index')
+ }
-function EventEmitter() {
- this._events = this._events || {};
- this._maxListeners = this._maxListeners || undefined;
-}
-module.exports = EventEmitter;
+ if (thisStart >= thisEnd && start >= end) {
+ return 0
+ }
+ if (thisStart >= thisEnd) {
+ return -1
+ }
+ if (start >= end) {
+ return 1
+ }
-// Backwards-compat with node 0.10.x
-EventEmitter.EventEmitter = EventEmitter;
+ start >>>= 0
+ end >>>= 0
+ thisStart >>>= 0
+ thisEnd >>>= 0
-EventEmitter.prototype._events = undefined;
-EventEmitter.prototype._maxListeners = undefined;
+ if (this === target) return 0
-// 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;
+ var x = thisEnd - thisStart
+ var y = end - start
+ var len = Math.min(x, y)
-// 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;
-};
+ var thisCopy = this.slice(thisStart, thisEnd)
+ var targetCopy = target.slice(start, end)
-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
- }
- throw TypeError('Uncaught, unspecified "error" event.');
+ for (var i = 0; i < len; ++i) {
+ if (thisCopy[i] !== targetCopy[i]) {
+ x = thisCopy[i]
+ y = targetCopy[i]
+ break
}
}
- handler = this._events[type];
-
- if (isUndefined(handler))
- return false;
+ if (x < y) return -1
+ if (y < x) return 1
+ return 0
+}
- 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];
+// 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
- listeners = handler.slice();
- len = listeners.length;
- for (i = 0; i < len; i++)
- listeners[i].apply(this, args);
+ // 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)
}
- return true;
-};
+ // 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
+ }
-EventEmitter.prototype.addListener = function(type, listener) {
- var m;
+ // Normalize val
+ if (typeof val === 'string') {
+ val = Buffer.from(val, encoding)
+ }
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
+ // 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)
+ }
- if (!this._events)
- this._events = {};
+ throw new TypeError('val must be string, number or Buffer')
+}
- // 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);
+function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
+ var indexSize = 1
+ var arrLength = arr.length
+ var valLength = val.length
- 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];
+ 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
+ }
+ }
- // Check for listener leak
- if (isObject(this._events[type]) && !this._events[type].warned) {
- var m;
- if (!isUndefined(this._maxListeners)) {
- m = this._maxListeners;
+ function read (buf, i) {
+ if (indexSize === 1) {
+ return buf[i]
} else {
- m = EventEmitter.defaultMaxListeners;
+ return buf.readUInt16BE(i * indexSize)
}
+ }
- 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();
+ 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 this;
-};
-
-EventEmitter.prototype.on = EventEmitter.prototype.addListener;
+ return -1
+}
-EventEmitter.prototype.once = function(type, listener) {
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
+Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
+ return this.indexOf(val, byteOffset, encoding) !== -1
+}
- var fired = false;
+Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
+ return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
+}
- function g() {
- this.removeListener(type, g);
+Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
+ return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
+}
- if (!fired) {
- fired = true;
- listener.apply(this, arguments);
+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
}
}
- 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;
+ // must be an even number of digits
+ var strLen = string.length
+ if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
+ 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
+}
- if (!this._events || !this._events[type])
- return this;
+function utf8Write (buf, string, offset, length) {
+ return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
+}
- list = this._events[type];
- length = list.length;
- position = -1;
+function asciiWrite (buf, string, offset, length) {
+ return blitBuffer(asciiToBytes(string), buf, offset, length)
+}
- if (list === listener ||
- (isFunction(list.listener) && list.listener === listener)) {
- delete this._events[type];
- if (this._events.removeListener)
- this.emit('removeListener', type, listener);
+function latin1Write (buf, string, offset, length) {
+ return asciiWrite(buf, string, offset, length)
+}
- } else if (isObject(list)) {
- for (i = length; i-- > 0;) {
- if (list[i] === listener ||
- (list[i].listener && list[i].listener === listener)) {
- position = i;
- break;
- }
- }
+function base64Write (buf, string, offset, length) {
+ return blitBuffer(base64ToBytes(string), buf, offset, length)
+}
- if (position < 0)
- return this;
+function ucs2Write (buf, string, offset, length) {
+ return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
+}
- if (list.length === 1) {
- list.length = 0;
- delete this._events[type];
+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 {
- list.splice(position, 1);
+ encoding = length
+ length = undefined
}
-
- if (this._events.removeListener)
- this.emit('removeListener', type, listener);
+ } else {
+ throw new Error(
+ 'Buffer.write(string, encoding, offset[, length]) is no longer supported'
+ )
}
- 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;
- }
+ var remaining = this.length - offset
+ if (length === undefined || length > remaining) length = remaining
- // 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;
+ if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
+ throw new RangeError('Attempt to write outside buffer bounds')
}
- listeners = this._events[type];
+ if (!encoding) encoding = 'utf8'
- if (isFunction(listeners)) {
- this.removeListener(type, listeners);
- } else {
- // LIFO order
- while (listeners.length)
- this.removeListener(type, listeners[listeners.length - 1]);
- }
- delete this._events[type];
+ var loweredCase = false
+ for (;;) {
+ switch (encoding) {
+ case 'hex':
+ return hexWrite(this, string, offset, length)
- return this;
-};
+ case 'utf8':
+ case 'utf-8':
+ return utf8Write(this, string, offset, length)
-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;
-};
+ case 'ascii':
+ return asciiWrite(this, string, offset, length)
-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;
- return ret;
-};
+ case 'latin1':
+ case 'binary':
+ return latin1Write(this, string, offset, length)
-function isFunction(arg) {
- return typeof arg === 'function';
-}
+ case 'base64':
+ // Warning: maxLength not taken into account in base64Write
+ return base64Write(this, string, offset, length)
-function isNumber(arg) {
- return typeof arg === 'number';
-}
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return ucs2Write(this, string, offset, length)
-function isObject(arg) {
- return typeof arg === 'object' && arg !== null;
+ default:
+ if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+ encoding = ('' + encoding).toLowerCase()
+ loweredCase = true
+ }
+ }
}
-function isUndefined(arg) {
- return arg === void 0;
+Buffer.prototype.toJSON = function toJSON () {
+ return {
+ type: 'Buffer',
+ data: Array.prototype.slice.call(this._arr || this, 0)
+ }
}
-},{}],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
+function base64Slice (buf, start, end) {
+ if (start === 0 && end === buf.length) {
+ return base64.fromByteArray(buf)
+ } else {
+ return base64.fromByteArray(buf.slice(start, end))
}
}
-},{}],13:[function(require,module,exports){
-module.exports = Array.isArray || function (arr) {
- return Object.prototype.toString.call(arr) == '[object Array]';
-};
+function utf8Slice (buf, start, end) {
+ end = Math.min(buf.length, end)
+ var res = []
-},{}],14:[function(require,module,exports){
-// shim for using process in browser
+ 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
-var process = module.exports = {};
-var queue = [];
-var draining = false;
-var currentQueue;
-var queueIndex = -1;
+ if (i + bytesPerSequence <= end) {
+ var secondByte, thirdByte, fourthByte, tempCodePoint
-function cleanUpNextTick() {
- draining = false;
- if (currentQueue.length) {
- queue = currentQueue.concat(queue);
- } else {
- queueIndex = -1;
+ 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 (queue.length) {
- drainQueue();
+
+ 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
}
-}
-function drainQueue() {
- if (draining) {
- return;
- }
- var timeout = setTimeout(cleanUpNextTick);
- draining = true;
+ res.push(codePoint)
+ i += bytesPerSequence
+ }
- var len = queue.length;
- while(len) {
- currentQueue = queue;
- queue = [];
- while (++queueIndex < len) {
- currentQueue[queueIndex].run();
- }
- queueIndex = -1;
- len = queue.length;
- }
- currentQueue = null;
- draining = false;
- clearTimeout(timeout);
+ return decodeCodePointsArray(res)
}
-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);
- }
-};
+// 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
-// 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 = {};
+function decodeCodePointsArray (codePoints) {
+ var len = codePoints.length
+ if (len <= MAX_ARGUMENTS_LENGTH) {
+ return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
+ }
-function noop() {}
+ // 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
+}
-process.on = noop;
-process.addListener = noop;
-process.once = noop;
-process.off = noop;
-process.removeListener = noop;
-process.removeAllListeners = noop;
-process.emit = noop;
+function asciiSlice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
-process.binding = function (name) {
- throw new Error('process.binding is not supported');
-};
+ for (var i = start; i < end; ++i) {
+ ret += String.fromCharCode(buf[i] & 0x7F)
+ }
+ return ret
+}
-// TODO(shtylman)
-process.cwd = function () { return '/' };
-process.chdir = function (dir) {
- throw new Error('process.chdir is not supported');
-};
-process.umask = function() { return 0; };
+function latin1Slice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
-},{}],15:[function(require,module,exports){
-module.exports = require("./lib/_stream_duplex.js")
+ for (var i = start; i < end; ++i) {
+ ret += String.fromCharCode(buf[i])
+ }
+ return ret
+}
-},{"./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.
+function hexSlice (buf, start, end) {
+ var len = buf.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.
+ if (!start || start < 0) start = 0
+ if (!end || end < 0 || end > len) end = len
-module.exports = Duplex;
+ var out = ''
+ for (var i = start; i < end; ++i) {
+ out += toHex(buf[i])
+ }
+ return out
+}
-/*<replacement>*/
-var objectKeys = Object.keys || function (obj) {
- var keys = [];
- for (var key in obj) keys.push(key);
- return keys;
+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
}
-/*</replacement>*/
+Buffer.prototype.slice = function slice (start, end) {
+ var len = this.length
+ start = ~~start
+ end = end === undefined ? len : ~~end
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+ if (start < 0) {
+ start += len
+ if (start < 0) start = 0
+ } else if (start > len) {
+ start = len
+ }
-var Readable = require('./_stream_readable');
-var Writable = require('./_stream_writable');
+ if (end < 0) {
+ end += len
+ if (end < 0) end = 0
+ } else if (end > len) {
+ end = len
+ }
-util.inherits(Duplex, Readable);
+ if (end < start) end = start
-forEach(objectKeys(Writable.prototype), function(method) {
- if (!Duplex.prototype[method])
- Duplex.prototype[method] = Writable.prototype[method];
-});
+ var newBuf = this.subarray(start, end)
+ // Return an augmented `Uint8Array` instance
+ newBuf.__proto__ = Buffer.prototype
+ return newBuf
+}
-function Duplex(options) {
- if (!(this instanceof Duplex))
- return new Duplex(options);
+/*
+ * 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')
+}
- Readable.call(this, options);
- Writable.call(this, options);
+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
+ }
- if (options && options.readable === false)
- this.readable = false;
+ return val
+}
- if (options && options.writable === false)
- this.writable = false;
+Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) {
+ checkOffset(offset, byteLength, this.length)
+ }
- this.allowHalfOpen = true;
- if (options && options.allowHalfOpen === false)
- this.allowHalfOpen = false;
+ var val = this[offset + --byteLength]
+ var mul = 1
+ while (byteLength > 0 && (mul *= 0x100)) {
+ val += this[offset + --byteLength] * mul
+ }
- this.once('end', onend);
+ return val
}
-// 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;
+Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 1, this.length)
+ return this[offset]
+}
- // no more data can be written.
- // But allow more writes to happen in this tick.
- process.nextTick(this.end.bind(this));
+Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return this[offset] | (this[offset + 1] << 8)
}
-function forEach (xs, f) {
- for (var i = 0, l = xs.length; i < l; i++) {
- f(xs[i], i);
- }
+Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return (this[offset] << 8) | this[offset + 1]
}
-}).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.
+Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
-// a passthrough stream.
-// basically just the most minimal sort of Transform stream.
-// Every written chunk gets output as-is.
+ return ((this[offset]) |
+ (this[offset + 1] << 8) |
+ (this[offset + 2] << 16)) +
+ (this[offset + 3] * 0x1000000)
+}
-module.exports = PassThrough;
+Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
-var Transform = require('./_stream_transform');
+ return (this[offset] * 0x1000000) +
+ ((this[offset + 1] << 16) |
+ (this[offset + 2] << 8) |
+ this[offset + 3])
+}
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
-util.inherits(PassThrough, Transform);
+ var val = this[offset]
+ var mul = 1
+ var i = 0
+ while (++i < byteLength && (mul *= 0x100)) {
+ val += this[offset + i] * mul
+ }
+ mul *= 0x80
-function PassThrough(options) {
- if (!(this instanceof PassThrough))
- return new PassThrough(options);
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
- Transform.call(this, options);
+ return val
}
-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.
+Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
-module.exports = Readable;
+ var i = byteLength
+ var mul = 1
+ var val = this[offset + --i]
+ while (i > 0 && (mul *= 0x100)) {
+ val += this[offset + --i] * mul
+ }
+ mul *= 0x80
-/*<replacement>*/
-var isArray = require('isarray');
-/*</replacement>*/
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+ return val
+}
-/*<replacement>*/
-var Buffer = require('buffer').Buffer;
-/*</replacement>*/
+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)
+}
-Readable.ReadableState = ReadableState;
+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
+}
-var EE = require('events').EventEmitter;
+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
+}
-/*<replacement>*/
-if (!EE.listenerCount) EE.listenerCount = function(emitter, type) {
- return emitter.listeners(type).length;
-};
-/*</replacement>*/
+Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
-var Stream = require('stream');
+ return (this[offset]) |
+ (this[offset + 1] << 8) |
+ (this[offset + 2] << 16) |
+ (this[offset + 3] << 24)
+}
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
-var StringDecoder;
+ 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)
+}
-/*<replacement>*/
-var debug = require('util');
-if (debug && debug.debuglog) {
- debug = debug.debuglog('stream');
-} else {
- debug = function () {};
+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)
}
-/*</replacement>*/
+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)
+}
-util.inherits(Readable, Stream);
+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 ReadableState(options, stream) {
- var Duplex = require('./_stream_duplex');
+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')
+}
- options = options || {};
+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)
+ }
- // 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;
+ var mul = 1
+ var i = 0
+ this[offset] = value & 0xFF
+ while (++i < byteLength && (mul *= 0x100)) {
+ this[offset + i] = (value / mul) & 0xFF
+ }
- // cast to ints.
- this.highWaterMark = ~~this.highWaterMark;
+ return offset + byteLength
+}
- this.buffer = [];
- this.length = 0;
- this.pipes = null;
- this.pipesCount = 0;
- this.flowing = null;
- this.ended = false;
- this.endEmitted = false;
- this.reading = false;
+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)
+ }
- // 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;
+ var i = byteLength - 1
+ var mul = 1
+ this[offset + i] = value & 0xFF
+ while (--i >= 0 && (mul *= 0x100)) {
+ this[offset + i] = (value / mul) & 0xFF
+ }
- // 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;
+ 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
+}
- // 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;
+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
+}
- if (stream instanceof Duplex)
- this.objectMode = this.objectMode || !!options.readableObjectMode;
+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
+}
- // 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';
+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
+}
- // when piping, we only care about 'readable' events that happen
- // after read()ing all the bytes and not getting any pushback.
- this.ranOut = false;
-
- // 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;
- }
+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
}
-function Readable(options) {
- var Duplex = require('./_stream_duplex');
-
- if (!(this instanceof Readable))
- return new Readable(options);
+Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ var limit = Math.pow(2, (8 * byteLength) - 1)
- this._readableState = new ReadableState(options, this);
+ checkInt(this, value, offset, byteLength, limit - 1, -limit)
+ }
- // legacy
- this.readable = true;
+ 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
+ }
- Stream.call(this);
+ return offset + byteLength
}
-// 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;
+Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ var limit = Math.pow(2, (8 * byteLength) - 1)
- if (util.isString(chunk) && !state.objectMode) {
- encoding = encoding || state.defaultEncoding;
- if (encoding !== state.encoding) {
- chunk = new Buffer(chunk, encoding);
- encoding = '';
+ 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 readableAddChunk(this, state, chunk, encoding, false);
-};
+ return offset + byteLength
+}
-// Unshift should *always* be something directly out of read()
-Readable.prototype.unshift = function(chunk) {
- var state = this._readableState;
- return readableAddChunk(this, state, chunk, '', true);
-};
+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
+}
-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.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
+}
- if (!addToFront)
- state.reading = false;
+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
+}
- // 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);
+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
+}
- if (state.needReadable)
- emitReadable(stream);
- }
+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
+}
- maybeReadMore(stream, state);
- }
- } else if (!addToFront) {
- state.reading = false;
- }
+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')
+}
- return needMoreData(state);
+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)
+}
-// 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 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
}
-// 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;
-};
+Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, true, noAssert)
+}
-// 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++;
- }
- return n;
+Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, false, noAssert)
}
-function howMuchToRead(n, state) {
- if (state.length === 0 && state.ended)
- return 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
- if (state.objectMode)
- return n === 0 ? 0 : 1;
+ // Copy 0 bytes; we're done
+ if (end === start) return 0
+ if (target.length === 0 || this.length === 0) return 0
- 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;
+ // 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')
- if (n <= 0)
- return 0;
+ // Are we oob?
+ if (end > this.length) end = this.length
+ if (target.length - targetStart < end - start) {
+ end = target.length - targetStart + start
+ }
- // 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;
+ 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 n;
+ return len
}
-// 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;
+// 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
+ }
- if (!util.isNumber(n) || n > 0)
- state.emittedReadable = false;
+ // 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 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;
+ if (end <= start) {
+ return this
}
- n = howMuchToRead(n, state);
+ start = start >>> 0
+ end = end === undefined ? this.length : end >>> 0
- // 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;
+ 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]
+ }
}
- // 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
+}
- // if we need a readable event, then we need to do some reading.
- var doRead = state.needReadable;
- debug('need readable', doRead);
+// HELPER FUNCTIONS
+// ================
- // 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 INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
- // 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);
+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
+}
- 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;
- }
+function toHex (n) {
+ if (n < 16) return '0' + n.toString(16)
+ return n.toString(16)
+}
- // 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);
+function utf8ToBytes (string, units) {
+ units = units || Infinity
+ var codePoint
+ var length = string.length
+ var leadSurrogate = null
+ var bytes = []
- var ret;
- if (n > 0)
- ret = fromList(n, state);
- else
- ret = null;
+ for (var i = 0; i < length; ++i) {
+ codePoint = string.charCodeAt(i)
- if (util.isNull(ret)) {
- state.needReadable = true;
- n = 0;
- }
+ // 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
+ }
- state.length -= n;
+ // valid lead
+ leadSurrogate = codePoint
- // 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;
+ continue
+ }
- // 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);
+ // 2 leads in a row
+ if (codePoint < 0xDC00) {
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ leadSurrogate = codePoint
+ continue
+ }
- if (!util.isNull(ret))
- this.emit('data', ret);
+ // 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)
+ }
- return ret;
-};
+ leadSurrogate = null
-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');
+ // 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 er;
+
+ 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 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;
- }
+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)
}
- state.ended = true;
- // emit 'readable' now to make sure it gets picked up.
- emitReadable(stream);
+ return byteArray
}
-// 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);
+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
}
-function emitReadable_(stream) {
- debug('emit readable');
- stream.emit('readable');
- flow(stream);
+// 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
+}
-// 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);
- });
- }
-}
-
-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;
-}
-
-// 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'));
-};
+},{"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.
-Readable.prototype.pipe = function(dest, pipeOpts) {
- var src = this;
- var state = this._readableState;
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
- switch (state.pipesCount) {
- case 0:
- state.pipes = dest;
- break;
- case 1:
- state.pipes = [state.pipes, dest];
- break;
- default:
- state.pipes.push(dest);
- break;
+function isArray(arg) {
+ if (Array.isArray) {
+ return Array.isArray(arg);
}
- state.pipesCount += 1;
- debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
+ return objectToString(arg) === '[object Array]';
+}
+exports.isArray = isArray;
- var doEnd = (!pipeOpts || pipeOpts.end !== false) &&
- dest !== process.stdout &&
- dest !== process.stderr;
+function isBoolean(arg) {
+ return typeof arg === 'boolean';
+}
+exports.isBoolean = isBoolean;
- var endFn = doEnd ? onend : cleanup;
- if (state.endEmitted)
- process.nextTick(endFn);
- else
- src.once('end', endFn);
+function isNull(arg) {
+ return arg === null;
+}
+exports.isNull = isNull;
- dest.on('unpipe', onunpipe);
- function onunpipe(readable) {
- debug('onunpipe');
- if (readable === src) {
- cleanup();
- }
- }
+function isNullOrUndefined(arg) {
+ return arg == null;
+}
+exports.isNullOrUndefined = isNullOrUndefined;
- function onend() {
- debug('onend');
- dest.end();
- }
+function isNumber(arg) {
+ return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
- // 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);
+function isString(arg) {
+ return typeof arg === 'string';
+}
+exports.isString = isString;
- 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);
+function isSymbol(arg) {
+ return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
- // 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 isUndefined(arg) {
+ return arg === void 0;
+}
+exports.isUndefined = isUndefined;
- 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();
- }
- }
+function isRegExp(re) {
+ return objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
- // 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];
+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;
- // 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();
- }
- dest.once('finish', onfinish);
+function isFunction(arg) {
+ return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
- function unpipe() {
- debug('unpipe');
- src.unpipe(dest);
- }
+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;
- // tell the dest that it's being piped to
- dest.emit('pipe', src);
+exports.isBuffer = Buffer.isBuffer;
- // start the flow if it hasn't been started already.
- if (!state.flowing) {
- debug('pipe resume');
- src.resume();
- }
+function objectToString(o) {
+ return Object.prototype.toString.call(o);
+}
- return dest;
-};
+}).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 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);
- }
- };
+function EventEmitter() {
+ this._events = this._events || {};
+ this._maxListeners = this._maxListeners || undefined;
}
+module.exports = EventEmitter;
+// Backwards-compat with node 0.10.x
+EventEmitter.EventEmitter = EventEmitter;
-Readable.prototype.unpipe = function(dest) {
- var state = this._readableState;
+EventEmitter.prototype._events = undefined;
+EventEmitter.prototype._maxListeners = undefined;
- // if we're not piping anywhere, then do nothing.
- if (state.pipesCount === 0)
- return this;
+// 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;
- // 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;
+// 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;
+};
- if (!dest)
- dest = state.pipes;
+EventEmitter.prototype.emit = function(type) {
+ var er, handler, len, args, i, listeners;
- // got a match.
- state.pipes = null;
- state.pipesCount = 0;
- state.flowing = false;
- if (dest)
- dest.emit('unpipe', this);
- return this;
+ 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;
+ }
+ }
}
- // slow case. multiple pipe destinations.
+ handler = this._events[type];
- if (!dest) {
- // remove all.
- var dests = state.pipes;
- var len = state.pipesCount;
- state.pipes = null;
- state.pipesCount = 0;
- state.flowing = false;
+ if (isUndefined(handler))
+ return false;
- for (var i = 0; i < len; i++)
- dests[i].emit('unpipe', this);
- return this;
+ 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);
}
- // try to find the right one.
- var i = indexOf(state.pipes, dest);
- if (i === -1)
- return this;
+ return true;
+};
- state.pipes.splice(i, 1);
- state.pipesCount -= 1;
- if (state.pipesCount === 1)
- state.pipes = state.pipes[0];
+EventEmitter.prototype.addListener = function(type, listener) {
+ var m;
- dest.emit('unpipe', this);
+ if (!isFunction(listener))
+ throw TypeError('listener must be a function');
- return this;
-};
+ if (!this._events)
+ this._events = {};
-// 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);
+ // 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 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();
- }
+ 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];
- 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);
- }
+ // Check for listener leak
+ if (isObject(this._events[type]) && !this._events[type].warned) {
+ if (!isUndefined(this._maxListeners)) {
+ m = this._maxListeners;
+ } else {
+ m = EventEmitter.defaultMaxListeners;
}
- }
- return res;
-};
-Readable.prototype.addListener = Readable.prototype.on;
-
-// 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);
+ 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();
+ }
}
- resume(this, state);
}
+
return this;
};
-function resume(stream, state) {
- if (!state.resumeScheduled) {
- state.resumeScheduled = true;
- process.nextTick(function() {
- resume_(stream, state);
- });
- }
-}
+EventEmitter.prototype.on = EventEmitter.prototype.addListener;
-function resume_(stream, state) {
- state.resumeScheduled = false;
- stream.emit('resume');
- flow(stream);
- if (state.flowing && !state.reading)
- stream.read(0);
-}
+EventEmitter.prototype.once = function(type, listener) {
+ if (!isFunction(listener))
+ throw TypeError('listener must be a function');
-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 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;
};
-function flow(stream) {
- var state = stream._readableState;
- debug('flow', state.flowing);
- if (state.flowing) {
- do {
- var chunk = stream.read();
- } while (null !== chunk && state.flowing);
- }
-}
-
-// 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;
+// emits a 'removeListener' event iff the listener was removed
+EventEmitter.prototype.removeListener = function(type, listener) {
+ var list, position, length, i;
- 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);
- }
+ if (!isFunction(listener))
+ throw TypeError('listener must be a function');
- self.push(null);
- });
+ if (!this._events || !this._events[type])
+ return this;
- stream.on('data', function(chunk) {
- debug('wrapped data');
- if (state.decoder)
- chunk = state.decoder.write(chunk);
- if (!chunk || !state.objectMode && !chunk.length)
- return;
+ list = this._events[type];
+ length = list.length;
+ position = -1;
- var ret = self.push(chunk);
- if (!ret) {
- paused = true;
- stream.pause();
- }
- });
+ if (list === listener ||
+ (isFunction(list.listener) && list.listener === listener)) {
+ delete this._events[type];
+ if (this._events.removeListener)
+ this.emit('removeListener', type, listener);
- // 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);
+ } else if (isObject(list)) {
+ for (i = length; i-- > 0;) {
+ if (list[i] === listener ||
+ (list[i].listener && list[i].listener === listener)) {
+ position = i;
+ break;
+ }
}
- }
- // proxy certain important events.
- var events = ['error', 'close', 'destroy', 'pause', 'resume'];
- forEach(events, function(ev) {
- stream.on(ev, self.emit.bind(self, ev));
- });
+ if (position < 0)
+ return this;
- // 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();
+ if (list.length === 1) {
+ list.length = 0;
+ delete this._events[type];
+ } else {
+ list.splice(position, 1);
}
- };
- return self;
-};
+ if (this._events.removeListener)
+ this.emit('removeListener', type, listener);
+ }
+ return this;
+};
+EventEmitter.prototype.removeAllListeners = function(type) {
+ var key, listeners;
-// exposed for testing purposes only.
-Readable._fromList = fromList;
+ if (!this._events)
+ return this;
-// 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;
+ // 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;
+ }
- // nothing in the list, definitely empty.
- if (list.length === 0)
- return null;
+ // 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;
+ }
- 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;
+ 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 {
- // 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();
- } else {
- // complex case.
- // we have enough to cover it, but it spans past the first buffer.
- if (stringMode)
- ret = '';
- else
- ret = new Buffer(n);
+ m = m + Math.pow(2, mLen)
+ e = e - eBias
+ }
+ return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
+}
- 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);
+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
- if (stringMode)
- ret += buf.slice(0, cpy);
- else
- buf.copy(ret, c, 0, cpy);
+ value = Math.abs(value)
- if (cpy < buf.length)
- list[0] = buf.slice(cpy);
- else
- list.shift();
+ 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
+ }
- c += cpy;
- }
+ 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
}
}
- return ret;
-}
+ for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
-function endReadable(stream) {
- var state = stream._readableState;
+ e = (e << mLen) | m
+ eLen += mLen
+ for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
- // 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');
+ buffer[offset + i - d] |= s * 128
+}
- 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');
+},{}],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
}
}
-function forEach (xs, f) {
- for (var i = 0, l = xs.length; i < l; i++) {
- f(xs[i], i);
- }
+},{}],9:[function(require,module,exports){
+/*!
+ * Determine if an object is a Buffer
+ *
+ * @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license MIT
+ */
+
+// 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)
}
-function indexOf (xs, x) {
- for (var i = 0, l = xs.length; i < l; i++) {
- if (xs[i] === x) return i;
+function isBuffer (obj) {
+ return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
+}
+
+// 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))
+}
+
+},{}],10:[function(require,module,exports){
+var toString = {}.toString;
+
+module.exports = Array.isArray || function (arr) {
+ return toString.call(arr) == '[object Array]';
+};
+
+},{}],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);
+ });
}
- return -1;
}
}).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){
+},{"_process":12}],12:[function(require,module,exports){
+// shim for using process in browser
+var process = module.exports = {};
+
+// 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.
+
+var cachedSetTimeout;
+var cachedClearTimeout;
+
+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);
+ }
+ }
+
+
+}
+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);
+ }
+ }
+
+
+
+}
+var queue = [];
+var draining = false;
+var currentQueue;
+var queueIndex = -1;
+
+function cleanUpNextTick() {
+ if (!draining || !currentQueue) {
+ return;
+ }
+ draining = false;
+ if (currentQueue.length) {
+ queue = currentQueue.concat(queue);
+ } else {
+ queueIndex = -1;
+ }
+ if (queue.length) {
+ drainQueue();
+ }
+}
+
+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);
+}
+
+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 = {};
+
+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
// 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';
-// 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.
+/*<replacement>*/
-module.exports = Transform;
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
-var Duplex = require('./_stream_duplex');
+/*<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>*/
-util.inherits(Transform, Duplex);
+var Readable = require('./_stream_readable');
+var Writable = require('./_stream_writable');
+util.inherits(Duplex, Readable);
-function TransformState(options, stream) {
- this.afterTransform = function(er, data) {
- return afterTransform(stream, er, data);
- };
-
- this.needTransform = false;
- this.transforming = false;
- this.writecb = null;
- this.writechunk = null;
+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];
}
-function afterTransform(stream, er, data) {
- var ts = stream._transformState;
- ts.transforming = false;
-
- var cb = ts.writecb;
+function Duplex(options) {
+ if (!(this instanceof Duplex)) return new Duplex(options);
- if (!cb)
- return stream.emit('error', new Error('no writecb in Transform class'));
+ Readable.call(this, options);
+ Writable.call(this, options);
- ts.writechunk = null;
- ts.writecb = null;
+ if (options && options.readable === false) this.readable = false;
- if (!util.isNullOrUndefined(data))
- stream.push(data);
+ if (options && options.writable === false) this.writable = false;
- if (cb)
- cb(er);
+ this.allowHalfOpen = true;
+ if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
- var rs = stream._readableState;
- rs.reading = false;
- if (rs.needReadable || rs.length < rs.highWaterMark) {
- stream._read(rs.highWaterMark);
- }
+ this.once('end', onend);
}
+// 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;
-function Transform(options) {
- if (!(this instanceof Transform))
- return new Transform(options);
-
- Duplex.call(this, options);
-
- this._transformState = new TransformState(options, this);
+ // no more data can be written.
+ // But allow more writes to happen in this tick.
+ processNextTick(onEndNT, this);
+}
- // when the writable side finishes, then flush out anything remaining.
- var stream = this;
+function onEndNT(self) {
+ self.end();
+}
- // start out asking for a readable event once data is transformed.
- this._readableState.needReadable = true;
+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;
+ }
- // 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;
+ // backward compatibility, the user is explicitly
+ // managing destroyed
+ this._readableState.destroyed = value;
+ this._writableState.destroyed = value;
+ }
+});
- this.once('prefinish', function() {
- if (util.isFunction(this._flush))
- this._flush(function(er) {
- done(stream, er);
- });
- else
- done(stream);
- });
-}
+Duplex.prototype._destroy = function (err, cb) {
+ this.push(null);
+ this.end();
-Transform.prototype.push = function(chunk, encoding) {
- this._transformState.needTransform = false;
- return Duplex.prototype.push.call(this, chunk, encoding);
+ processNextTick(cb, err);
};
-// This is the part where you do stuff!
-// override this function in implementation classes.
-// 'chunk' is an input chunk.
+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.
//
-// Call `push(newChunk)` to pass along transformed output
-// to the readable side. You may call 'push' zero or more times.
+// 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:
//
-// 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');
-};
-
-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);
- }
-};
+// 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.
-// 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;
+// a passthrough stream.
+// basically just the most minimal sort of Transform stream.
+// Every written chunk gets output as-is.
- 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;
- }
-};
+'use strict';
+module.exports = PassThrough;
-function done(stream, er) {
- if (er)
- return stream.emit('error', er);
+var Transform = require('./_stream_transform');
- // 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;
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
- if (ws.length)
- throw new Error('calling transform done when ws.length != 0');
+util.inherits(PassThrough, Transform);
- if (ts.transforming)
- throw new Error('calling transform done when still transforming');
+function PassThrough(options) {
+ if (!(this instanceof PassThrough)) return new PassThrough(options);
- return stream.push(null);
+ Transform.call(this, options);
}
-},{"./_stream_duplex":16,"core-util-is":21,"inherits":12}],20:[function(require,module,exports){
-(function (process){
+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
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
-// A bit simpler than readable streams.
-// Implement an async ._write(chunk, cb), and it'll handle all
-// the drain event emission and buffering.
+'use strict';
-module.exports = Writable;
+/*<replacement>*/
+
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
+
+module.exports = Readable;
/*<replacement>*/
-var Buffer = require('buffer').Buffer;
+var isArray = require('isarray');
/*</replacement>*/
-Writable.WritableState = WritableState;
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
+
+Readable.ReadableState = ReadableState;
+
+/*<replacement>*/
+var EE = require('events').EventEmitter;
+
+var EElistenerCount = function (emitter, type) {
+ return emitter.listeners(type).length;
+};
+/*</replacement>*/
+
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
+// 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 _isUint8Array(obj) {
+ return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+/*</replacement>*/
/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/
-var Stream = require('stream');
+/*<replacement>*/
+var debugUtil = require('util');
+var debug = void 0;
+if (debugUtil && debugUtil.debuglog) {
+ debug = debugUtil.debuglog('stream');
+} else {
+ debug = function () {};
+}
+/*</replacement>*/
-util.inherits(Writable, Stream);
+var BufferList = require('./internal/streams/BufferList');
+var destroyImpl = require('./internal/streams/destroy');
+var StringDecoder;
-function WriteReq(chunk, encoding, cb) {
- this.chunk = chunk;
- this.encoding = encoding;
- this.callback = cb;
+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 {
+ // 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]];
+ }
}
-function WritableState(options, stream) {
- var Duplex = require('./_stream_duplex');
+function ReadableState(options, stream) {
+ Duplex = Duplex || require('./_stream_duplex');
options = options || {};
- // 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;
-
- // object stream flag to indicate whether or not this stream
- // contains buffers or objects.
+ // 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;
- if (stream instanceof Duplex)
- this.objectMode = this.objectMode || !!options.writableObjectMode;
+ if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
+
+ // 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;
// cast to ints.
- this.highWaterMark = ~~this.highWaterMark;
+ this.highWaterMark = Math.floor(this.highWaterMark);
- this.needDrain = false;
- // at the start of calling end()
- this.ending = false;
- // when end() has been called, and returned
+ // 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;
- // when 'finish' is emitted
- this.finished = false;
+ this.endEmitted = false;
+ this.reading = false;
- // 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;
+ // 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;
+
+ // 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;
+
+ // has it been destroyed
+ this.destroyed = 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';
- // 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;
-
- // a flag to see when we're in the middle of a write.
- this.writing = false;
-
- // when true all writes will be buffered until .uncork() call
- this.corked = 0;
+ // the number of writers that are awaiting a drain event in .pipe()s
+ this.awaitDrain = 0;
- // 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 true, a maybeReadMore has been scheduled
+ this.readingMore = false;
- // 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;
+ 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;
+ }
+}
- // the callback that's passed to _write(chunk,cb)
- this.onwrite = function(er) {
- onwrite(stream, er);
- };
+function Readable(options) {
+ Duplex = Duplex || require('./_stream_duplex');
- // the callback that the user supplies to write(chunk,encoding,cb)
- this.writecb = null;
+ if (!(this instanceof Readable)) return new Readable(options);
- // the amount that is being written when _write is called.
- this.writelen = 0;
+ this._readableState = new ReadableState(options, this);
- this.buffer = [];
+ // legacy
+ this.readable = true;
- // number of pending user-supplied write callbacks
- // this must be 0 before 'finish' can be emitted
- this.pendingcb = 0;
+ if (options) {
+ if (typeof options.read === 'function') this._read = options.read;
- // emit prefinish if the only thing we're waiting for is _write cbs
- // This is relevant for synchronous Transform streams
- this.prefinished = false;
+ if (typeof options.destroy === 'function') this._destroy = options.destroy;
+ }
- // True if the error was already emitted and should not be thrown again
- this.errorEmitted = false;
+ Stream.call(this);
}
-function Writable(options) {
- var Duplex = require('./_stream_duplex');
-
- // 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);
+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;
+ }
- this._writableState = new WritableState(options, this);
+ // backward compatibility, the user is explicitly
+ // managing destroyed
+ this._readableState.destroyed = value;
+ }
+});
- // legacy.
- this.writable = true;
+Readable.prototype.destroy = destroyImpl.destroy;
+Readable.prototype._undestroy = destroyImpl.undestroy;
+Readable.prototype._destroy = function (err, cb) {
+ this.push(null);
+ cb(err);
+};
- Stream.call(this);
-}
+// 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;
+ }
-// Otherwise people can pipe Writable streams, which is just wrong.
-Writable.prototype.pipe = function() {
- this.emit('error', new Error('Cannot pipe. Not readable.'));
+ return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
};
+// Unshift should *always* be something directly out of read()
+Readable.prototype.unshift = function (chunk) {
+ return readableAddChunk(this, chunk, null, true, false);
+};
-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);
- });
-}
+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);
+ }
-// 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;
+ 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 valid;
+
+ return needMoreData(state);
}
-Writable.prototype.write = function(chunk, encoding, cb) {
- var state = this._writableState;
- var ret = false;
+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 (util.isFunction(encoding)) {
- cb = encoding;
- encoding = null;
+ if (state.needReadable) emitReadable(stream);
}
+ maybeReadMore(stream, state);
+}
- 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);
+function chunkInvalid(state, chunk) {
+ var er;
+ if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+ er = new TypeError('Invalid non-string/buffer chunk');
}
+ return er;
+}
- return ret;
-};
-
-Writable.prototype.cork = function() {
- var state = this._writableState;
+// 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);
+}
- state.corked++;
+Readable.prototype.isPaused = function () {
+ return this._readableState.flowing === false;
};
-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);
- }
+// 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;
};
-function decodeChunk(state, chunk, encoding) {
- if (!state.objectMode &&
- state.decodeStrings !== false &&
- util.isString(chunk)) {
- chunk = new Buffer(chunk, encoding);
+// 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 chunk;
+ return n;
}
-// 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;
+// 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;
+ }
+ // 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 state.length;
+}
- var ret = state.length < state.highWaterMark;
- // we must ensure that previous needDrain will not be reset to false.
- if (!ret)
- state.needDrain = true;
+// 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;
- if (state.writing || state.corked)
- state.buffer.push(new WriteReq(chunk, encoding, cb));
- else
- doWrite(stream, state, false, len, chunk, encoding, cb);
+ if (n !== 0) state.emittedReadable = false;
- return ret;
-}
+ // 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 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;
-}
+ n = howMuchToRead(n, state);
-function onwriteError(stream, state, sync, er, cb) {
- if (sync)
- process.nextTick(function() {
- state.pendingcb--;
- cb(er);
- });
- else {
- state.pendingcb--;
- cb(er);
+ // 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;
}
- stream._writableState.errorEmitted = true;
- stream.emit('error', er);
-}
-
-function onwriteStateUpdate(state) {
- state.writing = false;
- state.writecb = null;
- state.length -= state.writelen;
- state.writelen = 0;
-}
+ // 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.
-function onwrite(stream, er) {
- var state = stream._writableState;
- var sync = state.sync;
- var cb = state.writecb;
+ // if we need a readable event, then we need to do some reading.
+ var doRead = state.needReadable;
+ debug('need readable', doRead);
- onwriteStateUpdate(state);
+ // 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);
+ }
- 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);
+ // 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);
+ }
- if (!finished &&
- !state.corked &&
- !state.bufferProcessing &&
- state.buffer.length) {
- clearBuffer(stream, state);
- }
+ var ret;
+ if (n > 0) ret = fromList(n, state);else ret = null;
- if (sync) {
- process.nextTick(function() {
- afterWrite(stream, state, finished, cb);
- });
- } else {
- afterWrite(stream, state, finished, cb);
+ if (ret === null) {
+ state.needReadable = true;
+ n = 0;
+ } else {
+ state.length -= n;
+ }
+
+ 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;
+
+ // If we tried to read() past the EOF, then emit end on the next tick.
+ if (nOrig !== n && state.ended) endReadable(this);
+ }
+
+ if (ret !== null) this.emit('data', ret);
+
+ return ret;
+};
+
+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;
+
+ // emit 'readable' now to make sure it gets picked up.
+ emitReadable(stream);
+}
+
+// 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);
+ }
}
-function afterWrite(stream, state, finished, cb) {
- if (!finished)
- onwriteDrain(stream, state);
- state.pendingcb--;
- cb();
- finishMaybe(stream, state);
+function emitReadable_(stream) {
+ debug('emit readable');
+ stream.emit('readable');
+ flow(stream);
}
-// 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');
+// 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);
}
}
+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;
+}
-// if there's something in the buffer waiting, then process it
-function clearBuffer(stream, state) {
- state.bufferProcessing = true;
+// 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'));
+};
- 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);
+Readable.prototype.pipe = function (dest, pipeOpts) {
+ var src = this;
+ var state = this._readableState;
- // 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);
- }
- });
+ 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);
- // 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;
+ var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
- doWrite(stream, state, false, len, chunk, encoding, cb);
+ var endFn = doEnd ? onend : unpipe;
+ if (state.endEmitted) processNextTick(endFn);else src.once('end', endFn);
- // 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;
+ dest.on('unpipe', onunpipe);
+ function onunpipe(readable, unpipeInfo) {
+ debug('onunpipe');
+ if (readable === src) {
+ if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
+ unpipeInfo.hasUnpiped = true;
+ cleanup();
}
}
-
- if (c < state.buffer.length)
- state.buffer = state.buffer.slice(c);
- else
- state.buffer.length = 0;
}
- state.bufferProcessing = false;
-}
-
-Writable.prototype._write = function(chunk, encoding, cb) {
- cb(new Error('not implemented'));
+ function onend() {
+ debug('onend');
+ dest.end();
+ }
-};
+ // 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);
-Writable.prototype._writev = null;
+ 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);
-Writable.prototype.end = function(chunk, encoding, cb) {
- var state = this._writableState;
+ cleanedUp = true;
- if (util.isFunction(chunk)) {
- cb = chunk;
- chunk = null;
- encoding = null;
- } else if (util.isFunction(encoding)) {
- cb = encoding;
- encoding = null;
+ // 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();
}
- if (!util.isNullOrUndefined(chunk))
- this.write(chunk, encoding);
-
- // .end() fully uncorks
- if (state.corked) {
- state.corked = 1;
- this.uncork();
+ // 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();
+ }
}
- // ignore unnecessary end() calls.
- if (!state.ending && !state.finished)
- endWritable(this, state, cb);
-};
-
+ // 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);
+ }
-function needFinish(stream, state) {
- return (state.ending &&
- state.length === 0 &&
- !state.finished &&
- !state.writing);
-}
+ // Make sure our error handler is attached before userland ones.
+ prependListener(dest, 'error', onerror);
-function prefinish(stream, state) {
- if (!state.prefinished) {
- state.prefinished = true;
- stream.emit('prefinish');
+ // 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();
+ }
+ dest.once('finish', onfinish);
-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);
+ function unpipe() {
+ debug('unpipe');
+ src.unpipe(dest);
}
- return need;
-}
-function endWritable(stream, state, cb) {
- state.ending = true;
- finishMaybe(stream, state);
- if (cb) {
- if (state.finished)
- process.nextTick(cb);
- else
- stream.once('finish', cb);
+ // 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();
}
- state.ended = true;
-}
-}).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.
+ return dest;
+};
-// 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);
+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);
+ }
+ };
}
-exports.isArray = isArray;
-function isBoolean(arg) {
- return typeof arg === 'boolean';
-}
-exports.isBoolean = isBoolean;
+Readable.prototype.unpipe = function (dest) {
+ var state = this._readableState;
+ var unpipeInfo = { hasUnpiped: false };
-function isNull(arg) {
- return arg === null;
-}
-exports.isNull = isNull;
+ // if we're not piping anywhere, then do nothing.
+ if (state.pipesCount === 0) return this;
-function isNullOrUndefined(arg) {
- return arg == null;
-}
-exports.isNullOrUndefined = isNullOrUndefined;
+ // 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;
-function isNumber(arg) {
- return typeof arg === 'number';
-}
-exports.isNumber = isNumber;
+ if (!dest) dest = state.pipes;
-function isString(arg) {
- return typeof arg === 'string';
-}
-exports.isString = isString;
+ // got a match.
+ state.pipes = null;
+ state.pipesCount = 0;
+ state.flowing = false;
+ if (dest) dest.emit('unpipe', this, unpipeInfo);
+ return this;
+ }
-function isSymbol(arg) {
- return typeof arg === 'symbol';
-}
-exports.isSymbol = isSymbol;
+ // slow case. multiple pipe destinations.
-function isUndefined(arg) {
- return arg === void 0;
-}
-exports.isUndefined = isUndefined;
+ if (!dest) {
+ // remove all.
+ var dests = state.pipes;
+ var len = state.pipesCount;
+ state.pipes = null;
+ state.pipesCount = 0;
+ state.flowing = false;
-function isRegExp(re) {
- return isObject(re) && objectToString(re) === '[object RegExp]';
-}
-exports.isRegExp = isRegExp;
+ for (var i = 0; i < len; i++) {
+ dests[i].emit('unpipe', this, unpipeInfo);
+ }return this;
+ }
-function isObject(arg) {
- return typeof arg === 'object' && arg !== null;
-}
-exports.isObject = isObject;
+ // try to find the right one.
+ var index = indexOf(state.pipes, dest);
+ if (index === -1) return this;
-function isDate(d) {
- return isObject(d) && objectToString(d) === '[object Date]';
-}
-exports.isDate = isDate;
+ state.pipes.splice(index, 1);
+ state.pipesCount -= 1;
+ if (state.pipesCount === 1) state.pipes = state.pipes[0];
-function isError(e) {
- return isObject(e) &&
- (objectToString(e) === '[object Error]' || e instanceof Error);
-}
-exports.isError = isError;
+ dest.emit('unpipe', this, unpipeInfo);
-function isFunction(arg) {
- return typeof arg === 'function';
-}
-exports.isFunction = isFunction;
+ return this;
+};
-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;
+// 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);
-function isBuffer(arg) {
- return Buffer.isBuffer(arg);
-}
-exports.isBuffer = isBuffer;
+ 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);
+ }
+ }
+ }
-function objectToString(o) {
- return Object.prototype.toString.call(o);
+ return res;
+};
+Readable.prototype.addListener = Readable.prototype.on;
+
+function nReadingNextTick(self) {
+ debug('readable nexttick read 0');
+ self.read(0);
}
-}).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');
+// 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;
+};
-},{"./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")
+function resume(stream, state) {
+ if (!state.resumeScheduled) {
+ state.resumeScheduled = true;
+ processNextTick(resume_, stream, state);
+ }
+}
-},{"./lib/_stream_transform.js":19}],25:[function(require,module,exports){
-module.exports = require("./lib/_stream_writable.js")
+function resume_(stream, state) {
+ if (!state.reading) {
+ debug('resume read 0');
+ stream.read(0);
+ }
-},{"./lib/_stream_writable.js":20}],26:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
+ state.resumeScheduled = false;
+ state.awaitDrain = 0;
+ stream.emit('resume');
+ flow(stream);
+ if (state.flowing && !state.reading) stream.read(0);
+}
+
+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;
+};
+
+function flow(stream) {
+ var state = stream._readableState;
+ debug('flow', state.flowing);
+ while (state.flowing && stream.read() !== null) {}
+}
+
+// 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;
+
+ 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);
+ }
+
+ self.push(null);
+ });
+
+ stream.on('data', function (chunk) {
+ debug('wrapped data');
+ if (state.decoder) chunk = state.decoder.write(chunk);
+
+ // don't skip over falsy values in objectMode
+ if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
+
+ var ret = self.push(chunk);
+ if (!ret) {
+ paused = true;
+ stream.pause();
+ }
+ });
+
+ // 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);
+ }
+ }
+
+ // proxy certain important events.
+ for (var n = 0; n < kProxyEvents.length; n++) {
+ stream.on(kProxyEvents[n], self.emit.bind(self, kProxyEvents[n]));
+ }
+
+ // 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 self;
+};
+
+// exposed for testing purposes only.
+Readable._fromList = fromList;
+
+// 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;
+
+ 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 ret;
+}
+
+// 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;
+}
+
+// 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);
+ }
+ break;
+ }
+ ++c;
+ }
+ list.length -= c;
+ return ret;
+}
+
+// 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;
+ }
+ list.length -= c;
+ return ret;
+}
+
+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');
+
+ if (!state.endEmitted) {
+ state.ended = true;
+ processNextTick(endReadableNT, state, stream);
+ }
+}
+
+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 forEach(xs, f) {
+ for (var i = 0, l = xs.length; i < l; i++) {
+ f(xs[i], i);
+ }
+}
+
+function indexOf(xs, x) {
+ for (var i = 0, l = xs.length; i < l; i++) {
+ if (xs[i] === x) 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
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
-module.exports = Stream;
+// 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.
-var EE = require('events').EventEmitter;
-var inherits = require('inherits');
+'use strict';
-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');
+module.exports = Transform;
-// Backwards-compat with node 0.4.x
-Stream.Stream = Stream;
+var Duplex = require('./_stream_duplex');
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+util.inherits(Transform, Duplex);
-// old-style streams. Note that the pipe method (the only relevant
-// part of this class) is overridden in the Readable class.
+function TransformState(stream) {
+ this.afterTransform = function (er, data) {
+ return afterTransform(stream, er, data);
+ };
-function Stream() {
- EE.call(this);
+ this.needTransform = false;
+ this.transforming = false;
+ this.writecb = null;
+ this.writechunk = null;
+ this.writeencoding = null;
}
-Stream.prototype.pipe = function(dest, options) {
- var source = this;
+function afterTransform(stream, er, data) {
+ var ts = stream._transformState;
+ ts.transforming = false;
- function ondata(chunk) {
- if (dest.writable) {
- if (false === dest.write(chunk) && source.pause) {
- source.pause();
- }
- }
+ var cb = ts.writecb;
+
+ if (!cb) {
+ return stream.emit('error', new Error('write callback called multiple times'));
}
- source.on('data', ondata);
+ ts.writechunk = null;
+ ts.writecb = null;
- function ondrain() {
- if (source.readable && source.resume) {
- source.resume();
- }
- }
+ if (data !== null && data !== undefined) stream.push(data);
- dest.on('drain', ondrain);
+ cb(er);
- // 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);
+ var rs = stream._readableState;
+ rs.reading = false;
+ if (rs.needReadable || rs.length < rs.highWaterMark) {
+ stream._read(rs.highWaterMark);
}
+}
- var didOnEnd = false;
- function onend() {
- if (didOnEnd) return;
- didOnEnd = true;
+function Transform(options) {
+ if (!(this instanceof Transform)) return new Transform(options);
- dest.end();
- }
+ Duplex.call(this, options);
+ this._transformState = new TransformState(this);
- function onclose() {
- if (didOnEnd) return;
- didOnEnd = true;
+ var stream = this;
- if (typeof dest.destroy === 'function') dest.destroy();
- }
+ // start out asking for a readable event once data is transformed.
+ this._readableState.needReadable = true;
- // 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.
- }
- }
+ // 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;
- source.on('error', onerror);
- dest.on('error', onerror);
+ if (options) {
+ if (typeof options.transform === 'function') this._transform = options.transform;
- // remove all the event listeners that were added.
- function cleanup() {
- source.removeListener('data', ondata);
- dest.removeListener('drain', ondrain);
+ if (typeof options.flush === 'function') this._flush = options.flush;
+ }
- source.removeListener('end', onend);
- source.removeListener('close', onclose);
+ // 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);
+ });
+}
- source.removeListener('error', onerror);
- dest.removeListener('error', onerror);
+Transform.prototype.push = function (chunk, encoding) {
+ this._transformState.needTransform = false;
+ return Duplex.prototype.push.call(this, chunk, encoding);
+};
- source.removeListener('end', cleanup);
- source.removeListener('close', cleanup);
+// 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');
+};
- dest.removeListener('close', cleanup);
+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);
}
+};
- source.on('end', cleanup);
- source.on('close', cleanup);
+// 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;
- dest.on('close', cleanup);
+ 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;
+ }
+};
- dest.emit('pipe', source);
+Transform.prototype._destroy = function (err, cb) {
+ var _this = this;
- // Allow for unix-like usage: A.pipe(B).pipe(C)
- return dest;
+ Duplex.prototype._destroy.call(this, err, function (err2) {
+ cb(err2);
+ _this.emit('close');
+ });
};
-},{"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){
+function done(stream, er, data) {
+ if (er) return stream.emit('error', er);
+
+ if (data !== null && data !== undefined) stream.push(data);
+
+ // 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;
+
+ if (ws.length) throw new Error('Calling transform done when ws.length != 0');
+
+ if (ts.transforming) throw new Error('Calling transform done when still transforming');
+
+ 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.
-var Buffer = require('buffer').Buffer;
+// A bit simpler than readable streams.
+// Implement an async ._write(chunk, encoding, cb), and it'll handle all
+// the drain event emission and buffering.
-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;
- }
- }
+'use strict';
+/*<replacement>*/
-function assertEncoding(encoding) {
- if (encoding && !isBufferEncoding(encoding)) {
- throw new Error('Unknown encoding: ' + encoding);
- }
-}
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
-// 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;
- }
+module.exports = Writable;
- // 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;
-};
+/* <replacement> */
+function WriteReq(chunk, encoding, cb) {
+ this.chunk = chunk;
+ this.encoding = encoding;
+ this.callback = cb;
+ this.next = null;
+}
+// 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;
-// 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;
+ this.next = null;
+ this.entry = null;
+ this.finish = function () {
+ onCorkedFinish(_this, state);
+ };
+}
+/* </replacement> */
- // add the new bytes to the char buffer
- buffer.copy(this.charBuffer, this.charReceived, 0, available);
- this.charReceived += available;
+/*<replacement>*/
+var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick;
+/*</replacement>*/
- if (this.charReceived < this.charLength) {
- // still not enough chars in this buffer? wait for more ...
- return '';
- }
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
- // remove bytes belonging to the current character from the buffer
- buffer = buffer.slice(available, buffer.length);
+Writable.WritableState = WritableState;
- // get the character that was split
- charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
- // 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;
+/*<replacement>*/
+var internalUtil = {
+ deprecate: require('util-deprecate')
+};
+/*</replacement>*/
- // if there are no more bytes in this buffer, just emit our char
- if (buffer.length === 0) {
- return charStr;
- }
- break;
- }
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
- // determine and set charLength / charReceived
- this.detectIncompleteChar(buffer);
+/*<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>*/
- 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;
- }
+var destroyImpl = require('./internal/streams/destroy');
- charStr += buffer.toString(this.encoding, 0, end);
+util.inherits(Writable, Stream);
- 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);
- }
+function nop() {}
- // or just emit the charStr
- return charStr;
-};
+function WritableState(options, stream) {
+ Duplex = Duplex || require('./_stream_duplex');
-// 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;
+ options = options || {};
- // 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];
+ // object stream flag to indicate whether or not this stream
+ // contains buffers or objects.
+ this.objectMode = !!options.objectMode;
- // See http://en.wikipedia.org/wiki/UTF-8#Description
+ if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
- // 110XXXXX
- if (i == 1 && c >> 5 == 0x06) {
- this.charLength = 2;
- break;
- }
+ // 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;
- // 1110XXXX
- if (i <= 2 && c >> 4 == 0x0E) {
- this.charLength = 3;
- break;
- }
+ // cast to ints.
+ this.highWaterMark = Math.floor(this.highWaterMark);
- // 11110XXX
- if (i <= 3 && c >> 3 == 0x1E) {
- this.charLength = 4;
- break;
- }
+ // if _final has been called
+ this.finalCalled = false;
+
+ // 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;
+
+ // has it been destroyed
+ this.destroyed = false;
+
+ // 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;
+
+ // 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';
+
+ // 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;
+
+ // a flag to see when we're in the middle of a write.
+ this.writing = false;
+
+ // when true all writes will be buffered until .uncork() call
+ this.corked = 0;
+
+ // 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;
+
+ // 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;
+
+ // the callback that's passed to _write(chunk,cb)
+ this.onwrite = function (er) {
+ onwrite(stream, er);
+ };
+
+ // the callback that the user supplies to write(chunk,encoding,cb)
+ this.writecb = null;
+
+ // the amount that is being written when _write is called.
+ this.writelen = 0;
+
+ this.bufferedRequest = null;
+ this.lastBufferedRequest = null;
+
+ // number of pending user-supplied write callbacks
+ // this must be 0 before 'finish' can be emitted
+ this.pendingcb = 0;
+
+ // emit prefinish if the only thing we're waiting for is _write cbs
+ // This is relevant for synchronous Transform streams
+ this.prefinished = false;
+
+ // True if the error was already emitted and should not be thrown again
+ this.errorEmitted = false;
+
+ // count buffered requests
+ this.bufferedRequestCount = 0;
+
+ // allocate the first CorkedRequest, there is always
+ // one allocated and free to use, and we maintain at most two
+ this.corkedRequestsFree = new CorkedRequest(this);
+}
+
+WritableState.prototype.getBuffer = function getBuffer() {
+ var current = this.bufferedRequest;
+ var out = [];
+ while (current) {
+ out.push(current);
+ current = current.next;
}
- this.charReceived = i;
+ return out;
};
-StringDecoder.prototype.end = function(buffer) {
- var res = '';
- if (buffer && buffer.length)
- res = this.write(buffer);
+(function () {
+ try {
+ Object.defineProperty(WritableState.prototype, 'buffer', {
+ get: internalUtil.deprecate(function () {
+ return this.getBuffer();
+ }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
+ });
+ } catch (_) {}
+})();
- if (this.charReceived) {
- var cr = this.charReceived;
- var buf = this.charBuffer;
- var enc = this.encoding;
- res += buf.slice(0, cr).toString(enc);
+// 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;
+ };
+}
+
+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 res;
-};
+ this._writableState = new WritableState(options, this);
-function passThroughWrite(buffer) {
- return buffer.toString(this.encoding);
-}
+ // legacy.
+ this.writable = true;
-function utf16DetectIncompleteChar(buffer) {
- this.charReceived = buffer.length % 2;
- this.charLength = this.charReceived ? 2 : 0;
+ 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);
}
-function base64DetectIncompleteChar(buffer) {
- this.charReceived = buffer.length % 3;
- this.charLength = this.charReceived ? 3 : 0;
+// Otherwise people can pipe Writable streams, which is just wrong.
+Writable.prototype.pipe = function () {
+ this.emit('error', new Error('Cannot pipe, not readable'));
+};
+
+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);
}
-},{"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';
+// 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;
+
+ 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;
}
-},{}],29:[function(require,module,exports){
-(function (process,global){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-var formatRegExp = /%[sdj%]/g;
-exports.format = function(f) {
- if (!isString(f)) {
- var objects = [];
- for (var i = 0; i < arguments.length; i++) {
- objects.push(inspect(arguments[i]));
- }
- return objects.join(' ');
+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);
}
- 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 (typeof encoding === 'function') {
+ cb = encoding;
+ encoding = null;
}
- return str;
+
+ 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);
+ }
+
+ return ret;
};
+Writable.prototype.cork = function () {
+ var state = this._writableState;
-// 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);
- };
+ 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);
}
+};
- if (process.noDeprecation === true) {
- return fn;
+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;
+};
+
+function decodeChunk(state, chunk, encoding) {
+ if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
+ chunk = Buffer.from(chunk, encoding);
}
+ return chunk;
+}
- 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;
+// 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;
}
- return fn.apply(this, arguments);
}
+ var len = state.objectMode ? 1 : chunk.length;
- return deprecated;
-};
+ 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;
-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);
- };
+ 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 {
- debugs[set] = function() {};
+ state.bufferedRequest = state.lastBufferedRequest;
}
+ state.bufferedRequestCount += 1;
+ } else {
+ doWrite(stream, state, false, len, chunk, encoding, cb);
}
- 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);
+ return ret;
}
-exports.inspect = inspect;
+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 onwriteError(stream, state, sync, er, cb) {
+ --state.pendingcb;
+
+ 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);
+ }
+}
+
+function onwriteStateUpdate(state) {
+ state.writing = false;
+ state.writecb = null;
+ state.length -= state.writelen;
+ state.writelen = 0;
+}
+
+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(state);
+
+ if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
+ clearBuffer(stream, state);
+ }
+
+ if (sync) {
+ /*<replacement>*/
+ asyncWrite(afterWrite, stream, state, finished, cb);
+ /*</replacement>*/
+ } else {
+ afterWrite(stream, state, finished, cb);
+ }
+ }
+}
+
+function afterWrite(stream, state, finished, cb) {
+ if (!finished) onwriteDrain(stream, state);
+ state.pendingcb--;
+ cb();
+ finishMaybe(stream, state);
+}
+
+// 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');
+ }
+}
+
+// if there's something in the buffer waiting, then process it
+function clearBuffer(stream, state) {
+ state.bufferProcessing = true;
+ var entry = state.bufferedRequest;
+
+ 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;
+
+ var count = 0;
+ var allBuffers = true;
+ while (entry) {
+ buffer[count] = entry;
+ if (!entry.isBuf) allBuffers = false;
+ entry = entry.next;
+ count += 1;
+ }
+ buffer.allBuffers = allBuffers;
+
+ doWrite(stream, state, true, state.length, buffer, '', holder.finish);
+
+ // 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;
+
+ 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;
+ }
+ }
+
+ if (entry === null) state.lastBufferedRequest = null;
+ }
+
+ state.bufferedRequestCount = 0;
+ state.bufferedRequest = entry;
+ state.bufferProcessing = false;
+}
+
+Writable.prototype._write = function (chunk, encoding, cb) {
+ cb(new Error('_write() is not implemented'));
+};
+
+Writable.prototype._writev = null;
+
+Writable.prototype.end = function (chunk, encoding, cb) {
+ var state = this._writableState;
+
+ if (typeof chunk === 'function') {
+ cb = chunk;
+ chunk = null;
+ encoding = null;
+ } else if (typeof encoding === 'function') {
+ cb = encoding;
+ encoding = null;
+ }
+
+ if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
+
+ // .end() fully uncorks
+ if (state.corked) {
+ state.corked = 1;
+ this.uncork();
+ }
+
+ // ignore unnecessary end() calls.
+ if (!state.ending && !state.finished) endWritable(this, state, cb);
+};
+
+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');
+ }
+ }
+}
+
+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 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;
+}
+
+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;
+ }
+}
+
+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;
+ }
+
+ // backward compatibility, the user is explicitly
+ // managing destroyed
+ this._writableState.destroyed = value;
+ }
+});
+
+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>*/
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var Buffer = require('safe-buffer').Buffer;
+/*</replacement>*/
+
+function copyBuffer(src, target, offset) {
+ src.copy(target, offset);
+}
+
+module.exports = function () {
+ function BufferList() {
+ _classCallCheck(this, BufferList);
+
+ this.head = null;
+ this.tail = null;
+ this.length = 0;
+ }
+
+ 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;
+ };
+
+ 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;
+ };
+
+ BufferList.prototype.clear = function clear() {
+ this.head = this.tail = null;
+ this.length = 0;
+ };
+
+ 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;
+ };
+
+ 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;
+ };
+
+ return BufferList;
+}();
+},{"safe-buffer":26}],20:[function(require,module,exports){
+'use strict';
+
+/*<replacement>*/
+
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
+
+// undocumented cb() API, needed for core, not for public API
+function destroy(err, cb) {
+ var _this = this;
+
+ var readableDestroyed = this._readableState && this._readableState.destroyed;
+ var writableDestroyed = this._writableState && this._writableState.destroyed;
+
+ if (readableDestroyed || writableDestroyed) {
+ if (cb) {
+ cb(err);
+ } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
+ processNextTick(emitErrorNT, this, err);
+ }
+ return;
+ }
+
+ // we set destroyed to true before firing error callbacks in order
+ // to make it re-entrance safe in case destroy() is called within callbacks
+
+ 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;
+ }
+
+ 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);
+ }
+ });
+}
+
+function undestroy() {
+ if (this._readableState) {
+ this._readableState.destroyed = false;
+ this._readableState.reading = false;
+ this._readableState.ended = false;
+ this._readableState.endEmitted = false;
+ }
+
+ if (this._writableState) {
+ this._writableState.destroyed = false;
+ this._writableState.ended = false;
+ this._writableState.ending = false;
+ this._writableState.finished = false;
+ this._writableState.errorEmitted = false;
+ }
+}
+
+function emitErrorNT(self, err) {
+ self.emit('error', err);
+}
+
+module.exports = {
+ destroy: destroy,
+ undestroy: undestroy
+};
+},{"process-nextick-args":11}],21:[function(require,module,exports){
+module.exports = require('events').EventEmitter;
+
+},{"events":6}],22:[function(require,module,exports){
+module.exports = require('./readable').PassThrough
+
+},{"./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');
+
+},{"./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
+
+},{"./readable":23}],25:[function(require,module,exports){
+module.exports = require('./lib/_stream_writable.js');
+
+},{"./lib/_stream_writable.js":18}],26:[function(require,module,exports){
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+
+// 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
+}
+
+function SafeBuffer (arg, encodingOrOffset, length) {
+ return Buffer(arg, encodingOrOffset, length)
+}
+
+// Copy static methods from Buffer
+copyProps(Buffer, SafeBuffer)
+
+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
+}
+
+SafeBuffer.allocUnsafe = function (size) {
+ if (typeof size !== 'number') {
+ throw new TypeError('Argument must be a number')
+ }
+ return Buffer(size)
+}
+
+SafeBuffer.allocUnsafeSlow = function (size) {
+ if (typeof size !== 'number') {
+ throw new TypeError('Argument must be a number')
+ }
+ return buffer.SlowBuffer(size)
+}
+
+},{"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.
+
+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;
+
+
+
+// old-style streams. Note that the pipe method (the only relevant
+// part of this class) is overridden in the Readable class.
+
+function Stream() {
+ EE.call(this);
+}
+
+Stream.prototype.pipe = function(dest, options) {
+ var source = this;
+
+ function ondata(chunk) {
+ if (dest.writable) {
+ if (false === dest.write(chunk) && source.pause) {
+ source.pause();
+ }
+ }
+ }
+
+ source.on('data', ondata);
+
+ function ondrain() {
+ if (source.readable && source.resume) {
+ source.resume();
+ }
+ }
+
+ 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);
+ }
+
+ var didOnEnd = false;
+ function onend() {
+ if (didOnEnd) return;
+ didOnEnd = true;
+
+ dest.end();
+ }
+
+
+ function onclose() {
+ if (didOnEnd) return;
+ didOnEnd = true;
+
+ if (typeof dest.destroy === 'function') dest.destroy();
+ }
+
+ // 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.
+ }
+ }
+
+ source.on('error', onerror);
+ dest.on('error', onerror);
+
+ // remove all the event listeners that were added.
+ function cleanup() {
+ source.removeListener('data', ondata);
+ dest.removeListener('drain', ondrain);
+
+ source.removeListener('end', onend);
+ source.removeListener('close', onclose);
+
+ source.removeListener('error', onerror);
+ dest.removeListener('error', onerror);
+
+ source.removeListener('end', cleanup);
+ source.removeListener('close', cleanup);
+
+ dest.removeListener('close', cleanup);
+ }
+
+ source.on('end', cleanup);
+ source.on('close', cleanup);
+
+ dest.on('close', cleanup);
+
+ dest.emit('pipe', source);
+
+ // Allow for unix-like usage: A.pipe(B).pipe(C)
+ return dest;
+};
+
+},{"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';
+
+var Buffer = require('safe-buffer').Buffer;
+
+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;
+ }
+};
+
+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;
+ }
+ }
+};
+
+// 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;
+ }
+ 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;
+
+// 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;
+ }
+ return 0;
+}
+
+// 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);
+ }
+ }
+ }
+}
+
+// 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;
+}
+
+// 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;
+}
+
+// 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);
+}
+
+// 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);
+ }
+ return r;
+}
+
+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);
+}
+
+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;
+}
+
+// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
+function simpleWrite(buf) {
+ return buf.toString(this.encoding);
+}
+
+function simpleEnd(buf) {
+ return buf && buf.length ? this.write(buf) : '';
+}
+},{"safe-buffer":26}],29:[function(require,module,exports){
+(function (global){
+
+/**
+ * Module exports.
+ */
+
+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;
+ }
+
+ 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);
+ }
+
+ return deprecated;
+}
+
+/**
+ * Checks `localStorage` for boolean values for the given `name`.
+ *
+ * @param {String} name
+ * @returns {Boolean}
+ * @api private
+ */
+
+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(' ');
+ }
+
+ var i = 1;
+ var args = arguments;
+ var len = args.length;
+ var str = String(f).replace(formatRegExp, function(x) {
+ if (x === '%%') return '%';
+ if (i >= len) return x;
+ switch (x) {
+ case '%s': return String(args[i++]);
+ case '%d': return Number(args[i++]);
+ case '%j':
+ try {
+ return JSON.stringify(args[i++]);
+ } catch (_) {
+ return '[Circular]';
+ }
+ default:
+ return x;
+ }
+ });
+ for (var x = args[i]; i < len; x = args[++i]) {
+ if (isNull(x) || !isObject(x)) {
+ str += ' ' + x;
+ } else {
+ str += ' ' + inspect(x);
+ }
+ }
+ return str;
+};
+
+
+// Mark that a method should not be used.
+// Returns a modified function which warns once by default.
+// If --no-deprecation is set, then it is a no-op.
+exports.deprecate = function(fn, msg) {
+ // Allow for deprecating things in the process of starting up.
+ if (isUndefined(global.process)) {
+ return function() {
+ return exports.deprecate(fn, msg).apply(this, arguments);
+ };
+ }
+
+ if (process.noDeprecation === true) {
+ return fn;
+ }
+
+ var warned = false;
+ function deprecated() {
+ if (!warned) {
+ if (process.throwDeprecation) {
+ throw new Error(msg);
+ } else if (process.traceDeprecation) {
+ console.trace(msg);
+ } else {
+ console.error(msg);
+ }
+ warned = true;
+ }
+ return fn.apply(this, arguments);
+ }
+
+ return deprecated;
+};
+
+
+var debugs = {};
+var debugEnviron;
+exports.debuglog = function(set) {
+ if (isUndefined(debugEnviron))
+ debugEnviron = process.env.NODE_DEBUG || '';
+ set = set.toUpperCase();
+ if (!debugs[set]) {
+ if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
+ var pid = process.pid;
+ debugs[set] = function() {
+ var msg = exports.format.apply(exports, arguments);
+ console.error('%s %d: %s', set, pid, msg);
+ };
+ } else {
+ debugs[set] = function() {};
+ }
+ }
+ return debugs[set];
+};
+
+
+/**
+ * Echos the value of a value. Trys to print the value out
+ * in the best way possible given the different types.
+ *
+ * @param {Object} obj The object to print out.
+ * @param {Object} opts Optional options object that alters the output.
+ */
+/* legacy: obj, showHidden, depth, colors*/
+function inspect(obj, opts) {
+ // default options
+ var ctx = {
+ seen: [],
+ stylize: stylizeNoColor
+ };
+ // legacy...
+ if (arguments.length >= 3) ctx.depth = arguments[2];
+ if (arguments.length >= 4) ctx.colors = arguments[3];
+ if (isBoolean(opts)) {
+ // legacy...
+ ctx.showHidden = opts;
+ } else if (opts) {
+ // got an "options" object
+ exports._extend(ctx, opts);
+ }
+ // set default options
+ if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
+ if (isUndefined(ctx.depth)) ctx.depth = 2;
+ if (isUndefined(ctx.colors)) ctx.colors = false;
+ if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
+ if (ctx.colors) ctx.stylize = stylizeWithColor;
+ return formatValue(ctx, obj, ctx.depth);
+}
+exports.inspect = inspect;
+
+
+// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
+inspect.colors = {
+ 'bold' : [1, 22],
+ 'italic' : [3, 23],
+ 'underline' : [4, 24],
+ 'inverse' : [7, 27],
+ 'white' : [37, 39],
+ 'grey' : [90, 39],
+ 'black' : [30, 39],
+ 'blue' : [34, 39],
+ 'cyan' : [36, 39],
+ 'green' : [32, 39],
+ 'magenta' : [35, 39],
+ 'red' : [31, 39],
+ 'yellow' : [33, 39]
+};
+
+// Don't use 'blue' not visible on cmd.exe
+inspect.styles = {
+ 'special': 'cyan',
+ 'number': 'yellow',
+ 'boolean': 'yellow',
+ 'undefined': 'grey',
+ 'null': 'bold',
+ 'string': 'green',
+ 'date': 'magenta',
+ // "name": intentionally not styling
+ 'regexp': 'red'
+};
+
+
+function stylizeWithColor(str, styleType) {
+ var style = inspect.styles[styleType];
+
+ if (style) {
+ return '\u001b[' + inspect.colors[style][0] + 'm' + str +
+ '\u001b[' + inspect.colors[style][1] + 'm';
+ } else {
+ return str;
+ }
+}
+
+
+function stylizeNoColor(str, styleType) {
+ return str;
+}
+
+
+function arrayToHash(array) {
+ var hash = {};
+
+ array.forEach(function(val, idx) {
+ hash[val] = true;
+ });
+
+ return hash;
+}
+
+
+function formatValue(ctx, value, recurseTimes) {
+ // Provide a hook for user-specified inspect functions.
+ // Check that value is an object with an inspect function on it
+ if (ctx.customInspect &&
+ value &&
+ isFunction(value.inspect) &&
+ // Filter out the util module, it's inspect function is special
+ value.inspect !== exports.inspect &&
+ // Also filter out any prototype objects using the circular check.
+ !(value.constructor && value.constructor.prototype === value)) {
+ var ret = value.inspect(recurseTimes, ctx);
+ if (!isString(ret)) {
+ ret = formatValue(ctx, ret, recurseTimes);
+ }
+ return ret;
+ }
+
+ // Primitive types cannot have properties
+ var primitive = formatPrimitive(ctx, value);
+ if (primitive) {
+ return primitive;
+ }
+
+ // Look up the keys of the object.
+ var keys = Object.keys(value);
+ var visibleKeys = arrayToHash(keys);
+
+ if (ctx.showHidden) {
+ keys = Object.getOwnPropertyNames(value);
+ }
+
+ // IE doesn't make error fields non-enumerable
+ // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
+ if (isError(value)
+ && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
+ return formatError(value);
+ }
+
+ // Some type of object without properties can be shortcutted.
+ if (keys.length === 0) {
+ if (isFunction(value)) {
+ var name = value.name ? ': ' + value.name : '';
+ return ctx.stylize('[Function' + name + ']', 'special');
+ }
+ if (isRegExp(value)) {
+ return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
+ }
+ if (isDate(value)) {
+ return ctx.stylize(Date.prototype.toString.call(value), 'date');
+ }
+ if (isError(value)) {
+ return formatError(value);
+ }
+ }
+
+ var base = '', array = false, braces = ['{', '}'];
+
+ // Make Array say that they are Array
+ if (isArray(value)) {
+ array = true;
+ braces = ['[', ']'];
+ }
+
+ // Make functions say that they are functions
+ if (isFunction(value)) {
+ var n = value.name ? ': ' + value.name : '';
+ base = ' [Function' + n + ']';
+ }
+
+ // Make RegExps say that they are RegExps
+ if (isRegExp(value)) {
+ base = ' ' + RegExp.prototype.toString.call(value);
+ }
+
+ // Make dates with properties first say the date
+ if (isDate(value)) {
+ base = ' ' + Date.prototype.toUTCString.call(value);
+ }
+
+ // Make error with message first say the error
+ if (isError(value)) {
+ base = ' ' + formatError(value);
+ }
+
+ if (keys.length === 0 && (!array || value.length == 0)) {
+ return braces[0] + base + braces[1];
+ }
+
+ if (recurseTimes < 0) {
+ if (isRegExp(value)) {
+ return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
+ } else {
+ return ctx.stylize('[Object]', 'special');
+ }
+ }
+
+ ctx.seen.push(value);
+
+ var output;
+ if (array) {
+ output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
+ } else {
+ output = keys.map(function(key) {
+ return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
+ });
+ }
+
+ ctx.seen.pop();
+
+ return reduceToSingleString(output, base, braces);
+}
+
+
+function formatPrimitive(ctx, value) {
+ if (isUndefined(value))
+ return ctx.stylize('undefined', 'undefined');
+ if (isString(value)) {
+ var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
+ .replace(/'/g, "\\'")
+ .replace(/\\"/g, '"') + '\'';
+ return ctx.stylize(simple, 'string');
+ }
+ if (isNumber(value))
+ return ctx.stylize('' + value, 'number');
+ if (isBoolean(value))
+ return ctx.stylize('' + value, 'boolean');
+ // For some reason typeof null is "object", so special case here.
+ if (isNull(value))
+ return ctx.stylize('null', 'null');
+}
+
+
+function formatError(value) {
+ return '[' + Error.prototype.toString.call(value) + ']';
+}
+
+
+function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
+ var output = [];
+ for (var i = 0, l = value.length; i < l; ++i) {
+ if (hasOwnProperty(value, String(i))) {
+ output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
+ String(i), true));
+ } else {
+ output.push('');
+ }
+ }
+ keys.forEach(function(key) {
+ if (!key.match(/^\d+$/)) {
+ output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
+ key, true));
+ }
+ });
+ return output;
+}
+
+
+function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
+ var name, str, desc;
+ desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
+ if (desc.get) {
+ if (desc.set) {
+ str = ctx.stylize('[Getter/Setter]', 'special');
+ } else {
+ str = ctx.stylize('[Getter]', 'special');
+ }
+ } else {
+ if (desc.set) {
+ str = ctx.stylize('[Setter]', 'special');
+ }
+ }
+ if (!hasOwnProperty(visibleKeys, key)) {
+ name = '[' + key + ']';
+ }
+ if (!str) {
+ if (ctx.seen.indexOf(desc.value) < 0) {
+ if (isNull(recurseTimes)) {
+ str = formatValue(ctx, desc.value, null);
+ } else {
+ str = formatValue(ctx, desc.value, recurseTimes - 1);
+ }
+ if (str.indexOf('\n') > -1) {
+ if (array) {
+ str = str.split('\n').map(function(line) {
+ return ' ' + line;
+ }).join('\n').substr(2);
+ } else {
+ str = '\n' + str.split('\n').map(function(line) {
+ return ' ' + line;
+ }).join('\n');
+ }
+ }
+ } else {
+ str = ctx.stylize('[Circular]', 'special');
+ }
+ }
+ if (isUndefined(name)) {
+ if (array && key.match(/^\d+$/)) {
+ return str;
+ }
+ name = JSON.stringify('' + key);
+ if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
+ name = name.substr(1, name.length - 2);
+ name = ctx.stylize(name, 'name');
+ } else {
+ name = name.replace(/'/g, "\\'")
+ .replace(/\\"/g, '"')
+ .replace(/(^"|"$)/g, "'");
+ name = ctx.stylize(name, 'string');
+ }
+ }
+
+ return name + ': ' + str;
+}
+
+
+function reduceToSingleString(output, base, braces) {
+ var numLinesEst = 0;
+ var length = output.reduce(function(prev, cur) {
+ numLinesEst++;
+ if (cur.indexOf('\n') >= 0) numLinesEst++;
+ return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
+ }, 0);
+
+ if (length > 60) {
+ return braces[0] +
+ (base === '' ? '' : base + '\n ') +
+ ' ' +
+ output.join(',\n ') +
+ ' ' +
+ braces[1];
+ }
+
+ return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
+}
+
+
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
+function isArray(ar) {
+ return Array.isArray(ar);
+}
+exports.isArray = isArray;
+
+function isBoolean(arg) {
+ return typeof arg === 'boolean';
+}
+exports.isBoolean = isBoolean;
+
+function isNull(arg) {
+ return arg === null;
+}
+exports.isNull = isNull;
+
+function isNullOrUndefined(arg) {
+ return arg == null;
+}
+exports.isNullOrUndefined = isNullOrUndefined;
+
+function isNumber(arg) {
+ return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
+
+function isString(arg) {
+ return typeof arg === 'string';
+}
+exports.isString = isString;
+
+function isSymbol(arg) {
+ return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
+
+function isUndefined(arg) {
+ return arg === void 0;
+}
+exports.isUndefined = isUndefined;
+
+function isRegExp(re) {
+ return isObject(re) && objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
+
+function isObject(arg) {
+ return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
+
+function isDate(d) {
+ return isObject(d) && objectToString(d) === '[object Date]';
+}
+exports.isDate = isDate;
+
+function isError(e) {
+ return isObject(e) &&
+ (objectToString(e) === '[object Error]' || e instanceof Error);
+}
+exports.isError = isError;
+
+function isFunction(arg) {
+ return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
+
+function isPrimitive(arg) {
+ return arg === null ||
+ typeof arg === 'boolean' ||
+ typeof arg === 'number' ||
+ typeof arg === 'string' ||
+ typeof arg === 'symbol' || // ES6 symbol
+ typeof arg === 'undefined';
+}
+exports.isPrimitive = isPrimitive;
+
+exports.isBuffer = require('./support/isBuffer');
+
+function objectToString(o) {
+ return Object.prototype.toString.call(o);
+}
+
+
+function pad(n) {
+ return n < 10 ? '0' + n.toString(10) : n.toString(10);
+}
+
+
+var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
+ 'Oct', 'Nov', 'Dec'];
+
+// 26 Feb 16:19:34
+function timestamp() {
+ var d = new Date();
+ var time = [pad(d.getHours()),
+ pad(d.getMinutes()),
+ pad(d.getSeconds())].join(':');
+ return [d.getDate(), months[d.getMonth()], time].join(' ');
+}
+
+
+// log is just a thin wrapper to console.log that prepends a timestamp
+exports.log = function() {
+ console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
+};
+
+
+/**
+ * Inherit the prototype methods from one constructor into another.
+ *
+ * The Function.prototype.inherits from lang.js rewritten as a standalone
+ * function (not on Function.prototype). NOTE: If this file is to be loaded
+ * during bootstrapping this function needs to be rewritten using some native
+ * functions as prototype setup using normal JavaScript does not work as
+ * expected during bootstrapping (see mirror.js in r114903).
+ *
+ * @param {function} ctor Constructor function which needs to inherit the
+ * prototype.
+ * @param {function} superCtor Constructor function to inherit prototype from.
+ */
+exports.inherits = require('inherits');
+
+exports._extend = function(origin, add) {
+ // Don't do anything if add isn't an object
+ if (!add || !isObject(add)) return origin;
+
+ var keys = Object.keys(add);
+ var i = keys.length;
+ while (i--) {
+ origin[keys[i]] = add[keys[i]];
+ }
+ return origin;
+};
+
+function hasOwnProperty(obj, prop) {
+ return Object.prototype.hasOwnProperty.call(obj, prop);
+}
+
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./support/isBuffer":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')
+}
+
+},{"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
+
+var Buffer = require('safe-buffer').Buffer
+
+module.exports = function base (ALPHABET) {
+ var ALPHABET_MAP = {}
+ var BASE = ALPHABET.length
+ var LEADER = ALPHABET.charAt(0)
+
+ // pre-compute lookup table
+ for (var z = 0; z < ALPHABET.length; z++) {
+ var x = ALPHABET.charAt(z)
+
+ if (ALPHABET_MAP[x] !== undefined) throw new TypeError(x + ' is ambiguous')
+ ALPHABET_MAP[x] = z
+ }
+
+ function encode (source) {
+ if (source.length === 0) return ''
+
+ 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
+ }
+
+ while (carry > 0) {
+ digits.push(carry % BASE)
+ carry = (carry / BASE) | 0
+ }
+ }
+
+ var string = ''
+
+ // 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]]
+
+ return string
+ }
+
+ function decodeUnsafe (string) {
+ if (string.length === 0) return Buffer.allocUnsafe(0)
+
+ var bytes = [0]
+ for (var i = 0; i < string.length; i++) {
+ var value = ALPHABET_MAP[string[i]]
+ if (value === undefined) return
+
+ for (var j = 0, carry = value; j < bytes.length; ++j) {
+ carry += bytes[j] * BASE
+ bytes[j] = carry & 0xff
+ carry >>= 8
+ }
+
+ 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)
+ }
+
+ return Buffer.from(bytes.reverse())
+ }
+
+ function decode (string) {
+ var buffer = decodeUnsafe(string)
+ if (buffer) return buffer
+
+ throw new Error('Non-base' + BASE + ' character')
+ }
+
+ return {
+ encode: encode,
+ decodeUnsafe: decodeUnsafe,
+ decode: decode
+ }
+}
+
+},{"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)
+
+ if (a != null) {
+ if ("number" == typeof a) this.fromNumber(a, b, c)
+ else if (b == null && "string" != typeof a) this.fromString(a, 256)
+ else this.fromString(a, b)
+ }
+}
+
+var proto = BigInteger.prototype
+
+// duck-typed isBigInteger
+proto.__bigi = require('../package.json').version
+BigInteger.isBigInteger = function (obj, check_ver) {
+ return obj && obj.__bigi && (!check_ver || obj.__bigi === proto.__bigi)
+}
+
+// Bits per digit
+var dbits
+
+// am: Compute w_j += (x*this_i), propagate carries,
+// c is initial carry, returns final carry.
+// c < 3*dvalue, x < 2*dvalue, this_i < dvalue
+// We need to select the fastest one that works in this environment.
+
+// am1: use a single mult and divide to get the high bits,
+// max digit bits should be 26 because
+// max internal value = 2*dvalue^2-2*dvalue (< 2^53)
+function am1(i, x, w, j, c, n) {
+ while (--n >= 0) {
+ var v = x * this[i++] + w[j] + c
+ c = Math.floor(v / 0x4000000)
+ w[j++] = v & 0x3ffffff
+ }
+ return c
+}
+// am2 avoids a big mult-and-extract completely.
+// Max digit bits should be <= 30 because we do bitwise ops
+// on values up to 2*hdvalue^2-hdvalue-1 (< 2^31)
+function am2(i, x, w, j, c, n) {
+ var xl = x & 0x7fff,
+ xh = x >> 15
+ while (--n >= 0) {
+ var l = this[i] & 0x7fff
+ var h = this[i++] >> 15
+ var m = xh * l + h * xl
+ l = xl * l + ((m & 0x7fff) << 15) + w[j] + (c & 0x3fffffff)
+ c = (l >>> 30) + (m >>> 15) + xh * h + (c >>> 30)
+ w[j++] = l & 0x3fffffff
+ }
+ return c
+}
+// Alternately, set max digit bits to 28 since some
+// browsers slow down when dealing with 32-bit numbers.
+function am3(i, x, w, j, c, n) {
+ var xl = x & 0x3fff,
+ xh = x >> 14
+ while (--n >= 0) {
+ var l = this[i] & 0x3fff
+ var h = this[i++] >> 14
+ var m = xh * l + h * xl
+ l = xl * l + ((m & 0x3fff) << 14) + w[j] + c
+ c = (l >> 28) + (m >> 14) + xh * h
+ w[j++] = l & 0xfffffff
+ }
+ return c
+}
+
+// wtf?
+BigInteger.prototype.am = am1
+dbits = 26
+
+BigInteger.prototype.DB = dbits
+BigInteger.prototype.DM = ((1 << dbits) - 1)
+var DV = BigInteger.prototype.DV = (1 << dbits)
+
+var BI_FP = 52
+BigInteger.prototype.FV = Math.pow(2, BI_FP)
+BigInteger.prototype.F1 = BI_FP - dbits
+BigInteger.prototype.F2 = 2 * dbits - BI_FP
+
+// Digit conversions
+var BI_RM = "0123456789abcdefghijklmnopqrstuvwxyz"
+var BI_RC = new Array()
+var rr, vv
+rr = "0".charCodeAt(0)
+for (vv = 0; vv <= 9; ++vv) BI_RC[rr++] = vv
+rr = "a".charCodeAt(0)
+for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv
+rr = "A".charCodeAt(0)
+for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv
+
+function int2char(n) {
+ return BI_RM.charAt(n)
+}
+
+function intAt(s, i) {
+ var c = BI_RC[s.charCodeAt(i)]
+ return (c == null) ? -1 : c
+}
+
+// (protected) copy this to r
+function bnpCopyTo(r) {
+ for (var i = this.t - 1; i >= 0; --i) r[i] = this[i]
+ r.t = this.t
+ r.s = this.s
+}
+
+// (protected) set from integer value x, -DV <= x < DV
+function bnpFromInt(x) {
+ this.t = 1
+ this.s = (x < 0) ? -1 : 0
+ if (x > 0) this[0] = x
+ else if (x < -1) this[0] = x + DV
+ else this.t = 0
+}
+
+// return bigint initialized to value
+function nbv(i) {
+ var r = new BigInteger()
+ r.fromInt(i)
+ return r
+}
+
+// (protected) set from string and radix
+function bnpFromString(s, b) {
+ var self = this
+
+ var k
+ if (b == 16) k = 4
+ else if (b == 8) k = 3
+ else if (b == 256) k = 8; // byte array
+ else if (b == 2) k = 1
+ else if (b == 32) k = 5
+ else if (b == 4) k = 2
+ else {
+ self.fromRadix(s, b)
+ return
+ }
+ self.t = 0
+ self.s = 0
+ var i = s.length,
+ mi = false,
+ sh = 0
+ while (--i >= 0) {
+ var x = (k == 8) ? s[i] & 0xff : intAt(s, i)
+ if (x < 0) {
+ if (s.charAt(i) == "-") mi = true
+ continue
+ }
+ mi = false
+ if (sh == 0)
+ self[self.t++] = x
+ else if (sh + k > self.DB) {
+ self[self.t - 1] |= (x & ((1 << (self.DB - sh)) - 1)) << sh
+ self[self.t++] = (x >> (self.DB - sh))
+ } else
+ self[self.t - 1] |= x << sh
+ sh += k
+ if (sh >= self.DB) sh -= self.DB
+ }
+ if (k == 8 && (s[0] & 0x80) != 0) {
+ self.s = -1
+ if (sh > 0) self[self.t - 1] |= ((1 << (self.DB - sh)) - 1) << sh
+ }
+ self.clamp()
+ if (mi) BigInteger.ZERO.subTo(self, self)
+}
+
+// (protected) clamp off excess high words
+function bnpClamp() {
+ var c = this.s & this.DM
+ while (this.t > 0 && this[this.t - 1] == c)--this.t
+}
+
+// (public) return string representation in given radix
+function bnToString(b) {
+ var self = this
+ if (self.s < 0) return "-" + self.negate()
+ .toString(b)
+ var k
+ if (b == 16) k = 4
+ else if (b == 8) k = 3
+ else if (b == 2) k = 1
+ else if (b == 32) k = 5
+ else if (b == 4) k = 2
+ else return self.toRadix(b)
+ var km = (1 << k) - 1,
+ d, m = false,
+ r = "",
+ i = self.t
+ var p = self.DB - (i * self.DB) % k
+ if (i-- > 0) {
+ if (p < self.DB && (d = self[i] >> p) > 0) {
+ m = true
+ r = int2char(d)
+ }
+ while (i >= 0) {
+ if (p < k) {
+ d = (self[i] & ((1 << p) - 1)) << (k - p)
+ d |= self[--i] >> (p += self.DB - k)
+ } else {
+ d = (self[i] >> (p -= k)) & km
+ if (p <= 0) {
+ p += self.DB
+ --i
+ }
+ }
+ if (d > 0) m = true
+ if (m) r += int2char(d)
+ }
+ }
+ return m ? r : "0"
+}
+
+// (public) -this
+function bnNegate() {
+ var r = new BigInteger()
+ BigInteger.ZERO.subTo(this, r)
+ return r
+}
+
+// (public) |this|
+function bnAbs() {
+ return (this.s < 0) ? this.negate() : this
+}
+
+// (public) return + if this > a, - if this < a, 0 if equal
+function bnCompareTo(a) {
+ var r = this.s - a.s
+ if (r != 0) return r
+ var i = this.t
+ r = i - a.t
+ if (r != 0) return (this.s < 0) ? -r : r
+ while (--i >= 0)
+ if ((r = this[i] - a[i]) != 0) return r
+ return 0
+}
+
+// returns bit length of the integer x
+function nbits(x) {
+ var r = 1,
+ t
+ if ((t = x >>> 16) != 0) {
+ x = t
+ r += 16
+ }
+ if ((t = x >> 8) != 0) {
+ x = t
+ r += 8
+ }
+ if ((t = x >> 4) != 0) {
+ x = t
+ r += 4
+ }
+ if ((t = x >> 2) != 0) {
+ x = t
+ r += 2
+ }
+ if ((t = x >> 1) != 0) {
+ x = t
+ r += 1
+ }
+ return r
+}
+
+// (public) return the number of bits in "this"
+function bnBitLength() {
+ if (this.t <= 0) return 0
+ return this.DB * (this.t - 1) + nbits(this[this.t - 1] ^ (this.s & this.DM))
+}
+
+// (public) return the number of bytes in "this"
+function bnByteLength() {
+ return this.bitLength() >> 3
+}
+
+// (protected) r = this << n*DB
+function bnpDLShiftTo(n, r) {
+ var i
+ for (i = this.t - 1; i >= 0; --i) r[i + n] = this[i]
+ for (i = n - 1; i >= 0; --i) r[i] = 0
+ r.t = this.t + n
+ r.s = this.s
+}
+
+// (protected) r = this >> n*DB
+function bnpDRShiftTo(n, r) {
+ for (var i = n; i < this.t; ++i) r[i - n] = this[i]
+ r.t = Math.max(this.t - n, 0)
+ r.s = this.s
+}
+
+// (protected) r = this << n
+function bnpLShiftTo(n, r) {
+ var self = this
+ var bs = n % self.DB
+ var cbs = self.DB - bs
+ var bm = (1 << cbs) - 1
+ var ds = Math.floor(n / self.DB),
+ c = (self.s << bs) & self.DM,
+ i
+ for (i = self.t - 1; i >= 0; --i) {
+ r[i + ds + 1] = (self[i] >> cbs) | c
+ c = (self[i] & bm) << bs
+ }
+ for (i = ds - 1; i >= 0; --i) r[i] = 0
+ r[ds] = c
+ r.t = self.t + ds + 1
+ r.s = self.s
+ r.clamp()
+}
+
+// (protected) r = this >> n
+function bnpRShiftTo(n, r) {
+ var self = this
+ r.s = self.s
+ var ds = Math.floor(n / self.DB)
+ if (ds >= self.t) {
+ r.t = 0
+ return
+ }
+ var bs = n % self.DB
+ var cbs = self.DB - bs
+ var bm = (1 << bs) - 1
+ r[0] = self[ds] >> bs
+ for (var i = ds + 1; i < self.t; ++i) {
+ r[i - ds - 1] |= (self[i] & bm) << cbs
+ r[i - ds] = self[i] >> bs
+ }
+ if (bs > 0) r[self.t - ds - 1] |= (self.s & bm) << cbs
+ r.t = self.t - ds
+ r.clamp()
+}
+
+// (protected) r = this - a
+function bnpSubTo(a, r) {
+ var self = this
+ var i = 0,
+ c = 0,
+ m = Math.min(a.t, self.t)
+ while (i < m) {
+ c += self[i] - a[i]
+ r[i++] = c & self.DM
+ c >>= self.DB
+ }
+ if (a.t < self.t) {
+ c -= a.s
+ while (i < self.t) {
+ c += self[i]
+ r[i++] = c & self.DM
+ c >>= self.DB
+ }
+ c += self.s
+ } else {
+ c += self.s
+ while (i < a.t) {
+ c -= a[i]
+ r[i++] = c & self.DM
+ c >>= self.DB
+ }
+ c -= a.s
+ }
+ r.s = (c < 0) ? -1 : 0
+ if (c < -1) r[i++] = self.DV + c
+ else if (c > 0) r[i++] = c
+ r.t = i
+ r.clamp()
+}
+
+// (protected) r = this * a, r != this,a (HAC 14.12)
+// "this" should be the larger one if appropriate.
+function bnpMultiplyTo(a, r) {
+ var x = this.abs(),
+ y = a.abs()
+ var i = x.t
+ r.t = i + y.t
+ while (--i >= 0) r[i] = 0
+ for (i = 0; i < y.t; ++i) r[i + x.t] = x.am(0, y[i], r, i, 0, x.t)
+ r.s = 0
+ r.clamp()
+ if (this.s != a.s) BigInteger.ZERO.subTo(r, r)
+}
+
+// (protected) r = this^2, r != this (HAC 14.16)
+function bnpSquareTo(r) {
+ var x = this.abs()
+ var i = r.t = 2 * x.t
+ while (--i >= 0) r[i] = 0
+ for (i = 0; i < x.t - 1; ++i) {
+ var c = x.am(i, x[i], r, 2 * i, 0, 1)
+ if ((r[i + x.t] += x.am(i + 1, 2 * x[i], r, 2 * i + 1, c, x.t - i - 1)) >= x.DV) {
+ r[i + x.t] -= x.DV
+ r[i + x.t + 1] = 1
+ }
+ }
+ if (r.t > 0) r[r.t - 1] += x.am(i, x[i], r, 2 * i, 0, 1)
+ r.s = 0
+ r.clamp()
+}
+
+// (protected) divide this by m, quotient and remainder to q, r (HAC 14.20)
+// r != q, this != m. q or r may be null.
+function bnpDivRemTo(m, q, r) {
+ var self = this
+ var pm = m.abs()
+ if (pm.t <= 0) return
+ var pt = self.abs()
+ if (pt.t < pm.t) {
+ if (q != null) q.fromInt(0)
+ if (r != null) self.copyTo(r)
+ return
+ }
+ if (r == null) r = new BigInteger()
+ var y = new BigInteger(),
+ ts = self.s,
+ ms = m.s
+ var nsh = self.DB - nbits(pm[pm.t - 1]); // normalize modulus
+ if (nsh > 0) {
+ pm.lShiftTo(nsh, y)
+ pt.lShiftTo(nsh, r)
+ } else {
+ pm.copyTo(y)
+ pt.copyTo(r)
+ }
+ var ys = y.t
+ var y0 = y[ys - 1]
+ if (y0 == 0) return
+ var yt = y0 * (1 << self.F1) + ((ys > 1) ? y[ys - 2] >> self.F2 : 0)
+ var d1 = self.FV / yt,
+ d2 = (1 << self.F1) / yt,
+ e = 1 << self.F2
+ var i = r.t,
+ j = i - ys,
+ t = (q == null) ? new BigInteger() : q
+ y.dlShiftTo(j, t)
+ if (r.compareTo(t) >= 0) {
+ r[r.t++] = 1
+ r.subTo(t, r)
+ }
+ BigInteger.ONE.dlShiftTo(ys, t)
+ t.subTo(y, y); // "negative" y so we can replace sub with am later
+ while (y.t < ys) y[y.t++] = 0
+ while (--j >= 0) {
+ // Estimate quotient digit
+ var qd = (r[--i] == y0) ? self.DM : Math.floor(r[i] * d1 + (r[i - 1] + e) * d2)
+ if ((r[i] += y.am(0, qd, r, j, 0, ys)) < qd) { // Try it out
+ y.dlShiftTo(j, t)
+ r.subTo(t, r)
+ while (r[i] < --qd) r.subTo(t, r)
+ }
+ }
+ if (q != null) {
+ r.drShiftTo(ys, q)
+ if (ts != ms) BigInteger.ZERO.subTo(q, q)
+ }
+ r.t = ys
+ r.clamp()
+ if (nsh > 0) r.rShiftTo(nsh, r); // Denormalize remainder
+ if (ts < 0) BigInteger.ZERO.subTo(r, r)
+}
+
+// (public) this mod a
+function bnMod(a) {
+ var r = new BigInteger()
+ this.abs()
+ .divRemTo(a, null, r)
+ if (this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r, r)
+ return r
+}
+
+// Modular reduction using "classic" algorithm
+function Classic(m) {
+ this.m = m
+}
+
+function cConvert(x) {
+ if (x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m)
+ else return x
+}
+
+function cRevert(x) {
+ return x
+}
+
+function cReduce(x) {
+ x.divRemTo(this.m, null, x)
+}
+
+function cMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+ this.reduce(r)
+}
+
+function cSqrTo(x, r) {
+ x.squareTo(r)
+ this.reduce(r)
+}
+
+Classic.prototype.convert = cConvert
+Classic.prototype.revert = cRevert
+Classic.prototype.reduce = cReduce
+Classic.prototype.mulTo = cMulTo
+Classic.prototype.sqrTo = cSqrTo
+
+// (protected) return "-1/this % 2^DB"; useful for Mont. reduction
+// justification:
+// xy == 1 (mod m)
+// xy = 1+km
+// xy(2-xy) = (1+km)(1-km)
+// x[y(2-xy)] = 1-k^2m^2
+// x[y(2-xy)] == 1 (mod m^2)
+// if y is 1/x mod m, then y(2-xy) is 1/x mod m^2
+// should reduce x and y(2-xy) by m^2 at each step to keep size bounded.
+// JS multiply "overflows" differently from C/C++, so care is needed here.
+function bnpInvDigit() {
+ if (this.t < 1) return 0
+ var x = this[0]
+ if ((x & 1) == 0) return 0
+ var y = x & 3; // y == 1/x mod 2^2
+ y = (y * (2 - (x & 0xf) * y)) & 0xf; // y == 1/x mod 2^4
+ y = (y * (2 - (x & 0xff) * y)) & 0xff; // y == 1/x mod 2^8
+ y = (y * (2 - (((x & 0xffff) * y) & 0xffff))) & 0xffff; // y == 1/x mod 2^16
+ // last step - calculate inverse mod DV directly
+ // assumes 16 < DB <= 32 and assumes ability to handle 48-bit ints
+ y = (y * (2 - x * y % this.DV)) % this.DV; // y == 1/x mod 2^dbits
+ // we really want the negative inverse, and -DV < y < DV
+ return (y > 0) ? this.DV - y : -y
+}
+
+// Montgomery reduction
+function Montgomery(m) {
+ this.m = m
+ this.mp = m.invDigit()
+ this.mpl = this.mp & 0x7fff
+ this.mph = this.mp >> 15
+ this.um = (1 << (m.DB - 15)) - 1
+ this.mt2 = 2 * m.t
+}
+
+// xR mod m
+function montConvert(x) {
+ var r = new BigInteger()
+ x.abs()
+ .dlShiftTo(this.m.t, r)
+ r.divRemTo(this.m, null, r)
+ if (x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r, r)
+ return r
+}
+
+// x/R mod m
+function montRevert(x) {
+ var r = new BigInteger()
+ x.copyTo(r)
+ this.reduce(r)
+ return r
+}
+
+// x = x/R mod m (HAC 14.32)
+function montReduce(x) {
+ while (x.t <= this.mt2) // pad x so am has enough room later
+ x[x.t++] = 0
+ for (var i = 0; i < this.m.t; ++i) {
+ // faster way of calculating u0 = x[i]*mp mod DV
+ var j = x[i] & 0x7fff
+ var u0 = (j * this.mpl + (((j * this.mph + (x[i] >> 15) * this.mpl) & this.um) << 15)) & x.DM
+ // use am to combine the multiply-shift-add into one call
+ j = i + this.m.t
+ x[j] += this.m.am(0, u0, x, i, 0, this.m.t)
+ // propagate carry
+ while (x[j] >= x.DV) {
+ x[j] -= x.DV
+ x[++j]++
+ }
+ }
+ x.clamp()
+ x.drShiftTo(this.m.t, x)
+ if (x.compareTo(this.m) >= 0) x.subTo(this.m, x)
+}
+
+// r = "x^2/R mod m"; x != r
+function montSqrTo(x, r) {
+ x.squareTo(r)
+ this.reduce(r)
+}
+
+// r = "xy/R mod m"; x,y != r
+function montMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+ this.reduce(r)
+}
+
+Montgomery.prototype.convert = montConvert
+Montgomery.prototype.revert = montRevert
+Montgomery.prototype.reduce = montReduce
+Montgomery.prototype.mulTo = montMulTo
+Montgomery.prototype.sqrTo = montSqrTo
+
+// (protected) true iff this is even
+function bnpIsEven() {
+ return ((this.t > 0) ? (this[0] & 1) : this.s) == 0
+}
+
+// (protected) this^e, e < 2^32, doing sqr and mul with "r" (HAC 14.79)
+function bnpExp(e, z) {
+ if (e > 0xffffffff || e < 1) return BigInteger.ONE
+ var r = new BigInteger(),
+ r2 = new BigInteger(),
+ g = z.convert(this),
+ i = nbits(e) - 1
+ g.copyTo(r)
+ while (--i >= 0) {
+ z.sqrTo(r, r2)
+ if ((e & (1 << i)) > 0) z.mulTo(r2, g, r)
+ else {
+ var t = r
+ r = r2
+ r2 = t
+ }
+ }
+ return z.revert(r)
+}
+
+// (public) this^e % m, 0 <= e < 2^32
+function bnModPowInt(e, m) {
+ var z
+ if (e < 256 || m.isEven()) z = new Classic(m)
+ else z = new Montgomery(m)
+ return this.exp(e, z)
+}
+
+// protected
+proto.copyTo = bnpCopyTo
+proto.fromInt = bnpFromInt
+proto.fromString = bnpFromString
+proto.clamp = bnpClamp
+proto.dlShiftTo = bnpDLShiftTo
+proto.drShiftTo = bnpDRShiftTo
+proto.lShiftTo = bnpLShiftTo
+proto.rShiftTo = bnpRShiftTo
+proto.subTo = bnpSubTo
+proto.multiplyTo = bnpMultiplyTo
+proto.squareTo = bnpSquareTo
+proto.divRemTo = bnpDivRemTo
+proto.invDigit = bnpInvDigit
+proto.isEven = bnpIsEven
+proto.exp = bnpExp
+
+// public
+proto.toString = bnToString
+proto.negate = bnNegate
+proto.abs = bnAbs
+proto.compareTo = bnCompareTo
+proto.bitLength = bnBitLength
+proto.byteLength = bnByteLength
+proto.mod = bnMod
+proto.modPowInt = bnModPowInt
+
+// (public)
+function bnClone() {
+ var r = new BigInteger()
+ this.copyTo(r)
+ return r
+}
+
+// (public) return value as integer
+function bnIntValue() {
+ if (this.s < 0) {
+ if (this.t == 1) return this[0] - this.DV
+ else if (this.t == 0) return -1
+ } else if (this.t == 1) return this[0]
+ else if (this.t == 0) return 0
+ // assumes 16 < DB < 32
+ return ((this[1] & ((1 << (32 - this.DB)) - 1)) << this.DB) | this[0]
+}
+
+// (public) return value as byte
+function bnByteValue() {
+ return (this.t == 0) ? this.s : (this[0] << 24) >> 24
+}
+
+// (public) return value as short (assumes DB>=16)
+function bnShortValue() {
+ return (this.t == 0) ? this.s : (this[0] << 16) >> 16
+}
+
+// (protected) return x s.t. r^x < DV
+function bnpChunkSize(r) {
+ return Math.floor(Math.LN2 * this.DB / Math.log(r))
+}
+
+// (public) 0 if this == 0, 1 if this > 0
+function bnSigNum() {
+ if (this.s < 0) return -1
+ else if (this.t <= 0 || (this.t == 1 && this[0] <= 0)) return 0
+ else return 1
+}
+
+// (protected) convert to radix string
+function bnpToRadix(b) {
+ if (b == null) b = 10
+ if (this.signum() == 0 || b < 2 || b > 36) return "0"
+ var cs = this.chunkSize(b)
+ var a = Math.pow(b, cs)
+ var d = nbv(a),
+ y = new BigInteger(),
+ z = new BigInteger(),
+ r = ""
+ this.divRemTo(d, y, z)
+ while (y.signum() > 0) {
+ r = (a + z.intValue())
+ .toString(b)
+ .substr(1) + r
+ y.divRemTo(d, y, z)
+ }
+ return z.intValue()
+ .toString(b) + r
+}
+
+// (protected) convert from radix string
+function bnpFromRadix(s, b) {
+ var self = this
+ self.fromInt(0)
+ if (b == null) b = 10
+ var cs = self.chunkSize(b)
+ var d = Math.pow(b, cs),
+ mi = false,
+ j = 0,
+ w = 0
+ for (var i = 0; i < s.length; ++i) {
+ var x = intAt(s, i)
+ if (x < 0) {
+ if (s.charAt(i) == "-" && self.signum() == 0) mi = true
+ continue
+ }
+ w = b * w + x
+ if (++j >= cs) {
+ self.dMultiply(d)
+ self.dAddOffset(w, 0)
+ j = 0
+ w = 0
+ }
+ }
+ if (j > 0) {
+ self.dMultiply(Math.pow(b, j))
+ self.dAddOffset(w, 0)
+ }
+ if (mi) BigInteger.ZERO.subTo(self, self)
+}
+
+// (protected) alternate constructor
+function bnpFromNumber(a, b, c) {
+ var self = this
+ if ("number" == typeof b) {
+ // new BigInteger(int,int,RNG)
+ if (a < 2) self.fromInt(1)
+ else {
+ self.fromNumber(a, c)
+ if (!self.testBit(a - 1)) // force MSB set
+ self.bitwiseTo(BigInteger.ONE.shiftLeft(a - 1), op_or, self)
+ if (self.isEven()) self.dAddOffset(1, 0); // force odd
+ while (!self.isProbablePrime(b)) {
+ self.dAddOffset(2, 0)
+ if (self.bitLength() > a) self.subTo(BigInteger.ONE.shiftLeft(a - 1), self)
+ }
+ }
+ } else {
+ // new BigInteger(int,RNG)
+ var x = new Array(),
+ t = a & 7
+ x.length = (a >> 3) + 1
+ b.nextBytes(x)
+ if (t > 0) x[0] &= ((1 << t) - 1)
+ else x[0] = 0
+ self.fromString(x, 256)
+ }
+}
+
+// (public) convert to bigendian byte array
+function bnToByteArray() {
+ var self = this
+ var i = self.t,
+ r = new Array()
+ r[0] = self.s
+ var p = self.DB - (i * self.DB) % 8,
+ d, k = 0
+ if (i-- > 0) {
+ if (p < self.DB && (d = self[i] >> p) != (self.s & self.DM) >> p)
+ r[k++] = d | (self.s << (self.DB - p))
+ while (i >= 0) {
+ if (p < 8) {
+ d = (self[i] & ((1 << p) - 1)) << (8 - p)
+ d |= self[--i] >> (p += self.DB - 8)
+ } else {
+ d = (self[i] >> (p -= 8)) & 0xff
+ if (p <= 0) {
+ p += self.DB
+ --i
+ }
+ }
+ if ((d & 0x80) != 0) d |= -256
+ if (k === 0 && (self.s & 0x80) != (d & 0x80))++k
+ if (k > 0 || d != self.s) r[k++] = d
+ }
+ }
+ return r
+}
+
+function bnEquals(a) {
+ return (this.compareTo(a) == 0)
+}
+
+function bnMin(a) {
+ return (this.compareTo(a) < 0) ? this : a
+}
+
+function bnMax(a) {
+ return (this.compareTo(a) > 0) ? this : a
+}
+
+// (protected) r = this op a (bitwise)
+function bnpBitwiseTo(a, op, r) {
+ var self = this
+ var i, f, m = Math.min(a.t, self.t)
+ for (i = 0; i < m; ++i) r[i] = op(self[i], a[i])
+ if (a.t < self.t) {
+ f = a.s & self.DM
+ for (i = m; i < self.t; ++i) r[i] = op(self[i], f)
+ r.t = self.t
+ } else {
+ f = self.s & self.DM
+ for (i = m; i < a.t; ++i) r[i] = op(f, a[i])
+ r.t = a.t
+ }
+ r.s = op(self.s, a.s)
+ r.clamp()
+}
+
+// (public) this & a
+function op_and(x, y) {
+ return x & y
+}
+
+function bnAnd(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_and, r)
+ return r
+}
+
+// (public) this | a
+function op_or(x, y) {
+ return x | y
+}
+
+function bnOr(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_or, r)
+ return r
+}
+
+// (public) this ^ a
+function op_xor(x, y) {
+ return x ^ y
+}
+
+function bnXor(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_xor, r)
+ return r
+}
+
+// (public) this & ~a
+function op_andnot(x, y) {
+ return x & ~y
+}
+
+function bnAndNot(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_andnot, r)
+ return r
+}
+
+// (public) ~this
+function bnNot() {
+ var r = new BigInteger()
+ for (var i = 0; i < this.t; ++i) r[i] = this.DM & ~this[i]
+ r.t = this.t
+ r.s = ~this.s
+ return r
+}
+
+// (public) this << n
+function bnShiftLeft(n) {
+ var r = new BigInteger()
+ if (n < 0) this.rShiftTo(-n, r)
+ else this.lShiftTo(n, r)
+ return r
+}
+
+// (public) this >> n
+function bnShiftRight(n) {
+ var r = new BigInteger()
+ if (n < 0) this.lShiftTo(-n, r)
+ else this.rShiftTo(n, r)
+ return r
+}
+
+// return index of lowest 1-bit in x, x < 2^31
+function lbit(x) {
+ if (x == 0) return -1
+ var r = 0
+ if ((x & 0xffff) == 0) {
+ x >>= 16
+ r += 16
+ }
+ if ((x & 0xff) == 0) {
+ x >>= 8
+ r += 8
+ }
+ if ((x & 0xf) == 0) {
+ x >>= 4
+ r += 4
+ }
+ if ((x & 3) == 0) {
+ x >>= 2
+ r += 2
+ }
+ if ((x & 1) == 0)++r
+ return r
+}
+
+// (public) returns index of lowest 1-bit (or -1 if none)
+function bnGetLowestSetBit() {
+ for (var i = 0; i < this.t; ++i)
+ if (this[i] != 0) return i * this.DB + lbit(this[i])
+ if (this.s < 0) return this.t * this.DB
+ return -1
+}
+
+// return number of 1 bits in x
+function cbit(x) {
+ var r = 0
+ while (x != 0) {
+ x &= x - 1
+ ++r
+ }
+ return r
+}
+
+// (public) return number of set bits
+function bnBitCount() {
+ var r = 0,
+ x = this.s & this.DM
+ for (var i = 0; i < this.t; ++i) r += cbit(this[i] ^ x)
+ return r
+}
+
+// (public) true iff nth bit is set
+function bnTestBit(n) {
+ var j = Math.floor(n / this.DB)
+ if (j >= this.t) return (this.s != 0)
+ return ((this[j] & (1 << (n % this.DB))) != 0)
+}
+
+// (protected) this op (1<<n)
+function bnpChangeBit(n, op) {
+ var r = BigInteger.ONE.shiftLeft(n)
+ this.bitwiseTo(r, op, r)
+ return r
+}
+
+// (public) this | (1<<n)
+function bnSetBit(n) {
+ return this.changeBit(n, op_or)
+}
+
+// (public) this & ~(1<<n)
+function bnClearBit(n) {
+ return this.changeBit(n, op_andnot)
+}
+
+// (public) this ^ (1<<n)
+function bnFlipBit(n) {
+ return this.changeBit(n, op_xor)
+}
+
+// (protected) r = this + a
+function bnpAddTo(a, r) {
+ var self = this
+
+ var i = 0,
+ c = 0,
+ m = Math.min(a.t, self.t)
+ while (i < m) {
+ c += self[i] + a[i]
+ r[i++] = c & self.DM
+ c >>= self.DB
+ }
+ if (a.t < self.t) {
+ c += a.s
+ while (i < self.t) {
+ c += self[i]
+ r[i++] = c & self.DM
+ c >>= self.DB
+ }
+ c += self.s
+ } else {
+ c += self.s
+ while (i < a.t) {
+ c += a[i]
+ r[i++] = c & self.DM
+ c >>= self.DB
+ }
+ c += a.s
+ }
+ r.s = (c < 0) ? -1 : 0
+ if (c > 0) r[i++] = c
+ else if (c < -1) r[i++] = self.DV + c
+ r.t = i
+ r.clamp()
+}
+
+// (public) this + a
+function bnAdd(a) {
+ var r = new BigInteger()
+ this.addTo(a, r)
+ return r
+}
+
+// (public) this - a
+function bnSubtract(a) {
+ var r = new BigInteger()
+ this.subTo(a, r)
+ return r
+}
+
+// (public) this * a
+function bnMultiply(a) {
+ var r = new BigInteger()
+ this.multiplyTo(a, r)
+ return r
+}
+
+// (public) this^2
+function bnSquare() {
+ var r = new BigInteger()
+ this.squareTo(r)
+ return r
+}
+
+// (public) this / a
+function bnDivide(a) {
+ var r = new BigInteger()
+ this.divRemTo(a, r, null)
+ return r
+}
+
+// (public) this % a
+function bnRemainder(a) {
+ var r = new BigInteger()
+ this.divRemTo(a, null, r)
+ return r
+}
+
+// (public) [this/a,this%a]
+function bnDivideAndRemainder(a) {
+ var q = new BigInteger(),
+ r = new BigInteger()
+ this.divRemTo(a, q, r)
+ return new Array(q, r)
+}
+
+// (protected) this *= n, this >= 0, 1 < n < DV
+function bnpDMultiply(n) {
+ this[this.t] = this.am(0, n - 1, this, 0, 0, this.t)
+ ++this.t
+ this.clamp()
+}
+
+// (protected) this += n << w words, this >= 0
+function bnpDAddOffset(n, w) {
+ if (n == 0) return
+ while (this.t <= w) this[this.t++] = 0
+ this[w] += n
+ while (this[w] >= this.DV) {
+ this[w] -= this.DV
+ if (++w >= this.t) this[this.t++] = 0
+ ++this[w]
+ }
+}
+
+// A "null" reducer
+function NullExp() {}
+
+function nNop(x) {
+ return x
+}
+
+function nMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+}
+
+function nSqrTo(x, r) {
+ x.squareTo(r)
+}
+
+NullExp.prototype.convert = nNop
+NullExp.prototype.revert = nNop
+NullExp.prototype.mulTo = nMulTo
+NullExp.prototype.sqrTo = nSqrTo
+
+// (public) this^e
+function bnPow(e) {
+ return this.exp(e, new NullExp())
+}
+
+// (protected) r = lower n words of "this * a", a.t <= n
+// "this" should be the larger one if appropriate.
+function bnpMultiplyLowerTo(a, n, r) {
+ var i = Math.min(this.t + a.t, n)
+ r.s = 0; // assumes a,this >= 0
+ r.t = i
+ while (i > 0) r[--i] = 0
+ var j
+ for (j = r.t - this.t; i < j; ++i) r[i + this.t] = this.am(0, a[i], r, i, 0, this.t)
+ for (j = Math.min(a.t, n); i < j; ++i) this.am(0, a[i], r, i, 0, n - i)
+ r.clamp()
+}
+
+// (protected) r = "this * a" without lower n words, n > 0
+// "this" should be the larger one if appropriate.
+function bnpMultiplyUpperTo(a, n, r) {
+ --n
+ var i = r.t = this.t + a.t - n
+ r.s = 0; // assumes a,this >= 0
+ while (--i >= 0) r[i] = 0
+ for (i = Math.max(n - this.t, 0); i < a.t; ++i)
+ r[this.t + i - n] = this.am(n - i, a[i], r, 0, 0, this.t + i - n)
+ r.clamp()
+ r.drShiftTo(1, r)
+}
+
+// Barrett modular reduction
+function Barrett(m) {
+ // setup Barrett
+ this.r2 = new BigInteger()
+ this.q3 = new BigInteger()
+ BigInteger.ONE.dlShiftTo(2 * m.t, this.r2)
+ this.mu = this.r2.divide(m)
+ this.m = m
+}
+
+function barrettConvert(x) {
+ if (x.s < 0 || x.t > 2 * this.m.t) return x.mod(this.m)
+ else if (x.compareTo(this.m) < 0) return x
+ else {
+ var r = new BigInteger()
+ x.copyTo(r)
+ this.reduce(r)
+ return r
+ }
+}
+
+function barrettRevert(x) {
+ return x
+}
+
+// x = x mod m (HAC 14.42)
+function barrettReduce(x) {
+ var self = this
+ x.drShiftTo(self.m.t - 1, self.r2)
+ if (x.t > self.m.t + 1) {
+ x.t = self.m.t + 1
+ x.clamp()
+ }
+ self.mu.multiplyUpperTo(self.r2, self.m.t + 1, self.q3)
+ self.m.multiplyLowerTo(self.q3, self.m.t + 1, self.r2)
+ while (x.compareTo(self.r2) < 0) x.dAddOffset(1, self.m.t + 1)
+ x.subTo(self.r2, x)
+ while (x.compareTo(self.m) >= 0) x.subTo(self.m, x)
+}
+
+// r = x^2 mod m; x != r
+function barrettSqrTo(x, r) {
+ x.squareTo(r)
+ this.reduce(r)
+}
+
+// r = x*y mod m; x,y != r
+function barrettMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+ this.reduce(r)
+}
+
+Barrett.prototype.convert = barrettConvert
+Barrett.prototype.revert = barrettRevert
+Barrett.prototype.reduce = barrettReduce
+Barrett.prototype.mulTo = barrettMulTo
+Barrett.prototype.sqrTo = barrettSqrTo
+
+// (public) this^e % m (HAC 14.85)
+function bnModPow(e, m) {
+ var i = e.bitLength(),
+ k, r = nbv(1),
+ z
+ if (i <= 0) return r
+ else if (i < 18) k = 1
+ else if (i < 48) k = 3
+ else if (i < 144) k = 4
+ else if (i < 768) k = 5
+ else k = 6
+ if (i < 8)
+ z = new Classic(m)
+ else if (m.isEven())
+ z = new Barrett(m)
+ else
+ z = new Montgomery(m)
+
+ // precomputation
+ var g = new Array(),
+ n = 3,
+ k1 = k - 1,
+ km = (1 << k) - 1
+ g[1] = z.convert(this)
+ if (k > 1) {
+ var g2 = new BigInteger()
+ z.sqrTo(g[1], g2)
+ while (n <= km) {
+ g[n] = new BigInteger()
+ z.mulTo(g2, g[n - 2], g[n])
+ n += 2
+ }
+ }
+
+ var j = e.t - 1,
+ w, is1 = true,
+ r2 = new BigInteger(),
+ t
+ i = nbits(e[j]) - 1
+ while (j >= 0) {
+ if (i >= k1) w = (e[j] >> (i - k1)) & km
+ else {
+ w = (e[j] & ((1 << (i + 1)) - 1)) << (k1 - i)
+ if (j > 0) w |= e[j - 1] >> (this.DB + i - k1)
+ }
+
+ n = k
+ while ((w & 1) == 0) {
+ w >>= 1
+ --n
+ }
+ if ((i -= n) < 0) {
+ i += this.DB
+ --j
+ }
+ if (is1) { // ret == 1, don't bother squaring or multiplying it
+ g[w].copyTo(r)
+ is1 = false
+ } else {
+ while (n > 1) {
+ z.sqrTo(r, r2)
+ z.sqrTo(r2, r)
+ n -= 2
+ }
+ if (n > 0) z.sqrTo(r, r2)
+ else {
+ t = r
+ r = r2
+ r2 = t
+ }
+ z.mulTo(r2, g[w], r)
+ }
+
+ while (j >= 0 && (e[j] & (1 << i)) == 0) {
+ z.sqrTo(r, r2)
+ t = r
+ r = r2
+ r2 = t
+ if (--i < 0) {
+ i = this.DB - 1
+ --j
+ }
+ }
+ }
+ return z.revert(r)
+}
+
+// (public) gcd(this,a) (HAC 14.54)
+function bnGCD(a) {
+ var x = (this.s < 0) ? this.negate() : this.clone()
+ var y = (a.s < 0) ? a.negate() : a.clone()
+ if (x.compareTo(y) < 0) {
+ var t = x
+ x = y
+ y = t
+ }
+ var i = x.getLowestSetBit(),
+ g = y.getLowestSetBit()
+ if (g < 0) return x
+ if (i < g) g = i
+ if (g > 0) {
+ x.rShiftTo(g, x)
+ y.rShiftTo(g, y)
+ }
+ while (x.signum() > 0) {
+ if ((i = x.getLowestSetBit()) > 0) x.rShiftTo(i, x)
+ if ((i = y.getLowestSetBit()) > 0) y.rShiftTo(i, y)
+ if (x.compareTo(y) >= 0) {
+ x.subTo(y, x)
+ x.rShiftTo(1, x)
+ } else {
+ y.subTo(x, y)
+ y.rShiftTo(1, y)
+ }
+ }
+ if (g > 0) y.lShiftTo(g, y)
+ return y
+}
+
+// (protected) this % n, n < 2^26
+function bnpModInt(n) {
+ if (n <= 0) return 0
+ var d = this.DV % n,
+ r = (this.s < 0) ? n - 1 : 0
+ if (this.t > 0)
+ if (d == 0) r = this[0] % n
+ else
+ for (var i = this.t - 1; i >= 0; --i) r = (d * r + this[i]) % n
+ return r
+}
+
+// (public) 1/this % m (HAC 14.61)
+function bnModInverse(m) {
+ var ac = m.isEven()
+ if (this.signum() === 0) throw new Error('division by zero')
+ if ((this.isEven() && ac) || m.signum() == 0) return BigInteger.ZERO
+ var u = m.clone(),
+ v = this.clone()
+ var a = nbv(1),
+ b = nbv(0),
+ c = nbv(0),
+ d = nbv(1)
+ while (u.signum() != 0) {
+ while (u.isEven()) {
+ u.rShiftTo(1, u)
+ if (ac) {
+ if (!a.isEven() || !b.isEven()) {
+ a.addTo(this, a)
+ b.subTo(m, b)
+ }
+ a.rShiftTo(1, a)
+ } else if (!b.isEven()) b.subTo(m, b)
+ b.rShiftTo(1, b)
+ }
+ while (v.isEven()) {
+ v.rShiftTo(1, v)
+ if (ac) {
+ if (!c.isEven() || !d.isEven()) {
+ c.addTo(this, c)
+ d.subTo(m, d)
+ }
+ c.rShiftTo(1, c)
+ } else if (!d.isEven()) d.subTo(m, d)
+ d.rShiftTo(1, d)
+ }
+ if (u.compareTo(v) >= 0) {
+ u.subTo(v, u)
+ if (ac) a.subTo(c, a)
+ b.subTo(d, b)
+ } else {
+ v.subTo(u, v)
+ if (ac) c.subTo(a, c)
+ d.subTo(b, d)
+ }
+ }
+ if (v.compareTo(BigInteger.ONE) != 0) return BigInteger.ZERO
+ while (d.compareTo(m) >= 0) d.subTo(m, d)
+ while (d.signum() < 0) d.addTo(m, d)
+ return d
+}
+
+var lowprimes = [
+ 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71,
+ 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151,
+ 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233,
+ 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317,
+ 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419,
+ 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503,
+ 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607,
+ 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701,
+ 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811,
+ 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911,
+ 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997
+]
+
+var lplim = (1 << 26) / lowprimes[lowprimes.length - 1]
+
+// (public) test primality with certainty >= 1-.5^t
+function bnIsProbablePrime(t) {
+ var i, x = this.abs()
+ if (x.t == 1 && x[0] <= lowprimes[lowprimes.length - 1]) {
+ for (i = 0; i < lowprimes.length; ++i)
+ if (x[0] == lowprimes[i]) return true
+ return false
+ }
+ if (x.isEven()) return false
+ i = 1
+ while (i < lowprimes.length) {
+ var m = lowprimes[i],
+ j = i + 1
+ while (j < lowprimes.length && m < lplim) m *= lowprimes[j++]
+ m = x.modInt(m)
+ while (i < j) if (m % lowprimes[i++] == 0) return false
+ }
+ return x.millerRabin(t)
+}
+
+// (protected) true if probably prime (HAC 4.24, Miller-Rabin)
+function bnpMillerRabin(t) {
+ var n1 = this.subtract(BigInteger.ONE)
+ var k = n1.getLowestSetBit()
+ if (k <= 0) return false
+ var r = n1.shiftRight(k)
+ t = (t + 1) >> 1
+ if (t > lowprimes.length) t = lowprimes.length
+ var a = new BigInteger(null)
+ var j, bases = []
+ for (var i = 0; i < t; ++i) {
+ for (;;) {
+ j = lowprimes[Math.floor(Math.random() * lowprimes.length)]
+ if (bases.indexOf(j) == -1) break
+ }
+ bases.push(j)
+ a.fromInt(j)
+ var y = a.modPow(r, this)
+ if (y.compareTo(BigInteger.ONE) != 0 && y.compareTo(n1) != 0) {
+ var j = 1
+ while (j++ < k && y.compareTo(n1) != 0) {
+ y = y.modPowInt(2, this)
+ if (y.compareTo(BigInteger.ONE) == 0) return false
+ }
+ if (y.compareTo(n1) != 0) return false
+ }
+ }
+ return true
+}
+
+// protected
+proto.chunkSize = bnpChunkSize
+proto.toRadix = bnpToRadix
+proto.fromRadix = bnpFromRadix
+proto.fromNumber = bnpFromNumber
+proto.bitwiseTo = bnpBitwiseTo
+proto.changeBit = bnpChangeBit
+proto.addTo = bnpAddTo
+proto.dMultiply = bnpDMultiply
+proto.dAddOffset = bnpDAddOffset
+proto.multiplyLowerTo = bnpMultiplyLowerTo
+proto.multiplyUpperTo = bnpMultiplyUpperTo
+proto.modInt = bnpModInt
+proto.millerRabin = bnpMillerRabin
+
+// public
+proto.clone = bnClone
+proto.intValue = bnIntValue
+proto.byteValue = bnByteValue
+proto.shortValue = bnShortValue
+proto.signum = bnSigNum
+proto.toByteArray = bnToByteArray
+proto.equals = bnEquals
+proto.min = bnMin
+proto.max = bnMax
+proto.and = bnAnd
+proto.or = bnOr
+proto.xor = bnXor
+proto.andNot = bnAndNot
+proto.not = bnNot
+proto.shiftLeft = bnShiftLeft
+proto.shiftRight = bnShiftRight
+proto.getLowestSetBit = bnGetLowestSetBit
+proto.bitCount = bnBitCount
+proto.testBit = bnTestBit
+proto.setBit = bnSetBit
+proto.clearBit = bnClearBit
+proto.flipBit = bnFlipBit
+proto.add = bnAdd
+proto.subtract = bnSubtract
+proto.multiply = bnMultiply
+proto.divide = bnDivide
+proto.remainder = bnRemainder
+proto.divideAndRemainder = bnDivideAndRemainder
+proto.modPow = bnModPow
+proto.modInverse = bnModInverse
+proto.pow = bnPow
+proto.gcd = bnGCD
+proto.isProbablePrime = bnIsProbablePrime
+
+// JSBN-specific extension
+proto.square = bnSquare
+
+// constants
+BigInteger.ZERO = nbv(0)
+BigInteger.ONE = nbv(1)
+BigInteger.valueOf = nbv
+
+module.exports = BigInteger
+
+},{"../package.json":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 new BigInteger(byteArray)
+}
+
+/**
+ * Returns a byte array representation of the big integer.
+ *
+ * This returns the absolute of the contained value in big endian
+ * form. A value of zero results in an empty array.
+ */
+BigInteger.prototype.toByteArrayUnsigned = function() {
+ var byteArray = this.toByteArray()
+ return byteArray[0] === 0 ? byteArray.slice(1) : byteArray
+}
+
+BigInteger.fromDERInteger = function(byteArray) {
+ return new BigInteger(byteArray)
+}
+
+/*
+ * Converts BigInteger to a DER integer representation.
+ *
+ * The format for this value uses the most significant bit as a sign
+ * bit. If the most significant bit is already set and the integer is
+ * positive, a 0x00 is prepended.
+ *
+ * Examples:
+ *
+ * 0 => 0x00
+ * 1 => 0x01
+ * -1 => 0xff
+ * 127 => 0x7f
+ * -127 => 0x81
+ * 128 => 0x0080
+ * -128 => 0x80
+ * 255 => 0x00ff
+ * -255 => 0xff01
+ * 16300 => 0x3fac
+ * -16300 => 0xc054
+ * 62300 => 0x00f35c
+ * -62300 => 0xff0ca4
+*/
+BigInteger.prototype.toDERInteger = BigInteger.prototype.toByteArray
+
+BigInteger.fromBuffer = function(buffer) {
+ // BigInteger expects a DER integer conformant byte array
+ if (buffer[0] & 0x80) {
+ var byteArray = Array.prototype.slice.call(buffer)
+
+ return new BigInteger([0].concat(byteArray))
+ }
+
+ return new BigInteger(buffer)
+}
+
+BigInteger.fromHex = function(hex) {
+ if (hex === '') return BigInteger.ZERO
+
+ assert.equal(hex, hex.match(/^[A-Fa-f0-9]+/), 'Invalid hex string')
+ assert.equal(hex.length % 2, 0, 'Incomplete hex')
+ return new BigInteger(hex, 16)
+}
+
+BigInteger.prototype.toBuffer = function(size) {
+ var byteArray = this.toByteArrayUnsigned()
+ var zeros = []
+
+ var padding = size - byteArray.length
+ while (zeros.length < padding) zeros.push(0)
+
+ return new Buffer(zeros.concat(byteArray))
+}
+
+BigInteger.prototype.toHex = function(size) {
+ return this.toBuffer(size).toString('hex')
+}
+
+}).call(this,require("buffer").Buffer)
+},{"./bigi":35,"assert":1,"buffer":4}],37:[function(require,module,exports){
+var BigInteger = require('./bigi')
+
+//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
+
+var Buffer = require('safe-buffer').Buffer
+
+function check (buffer) {
+ if (buffer.length < 8) return false
+ if (buffer.length > 72) return false
+ if (buffer[0] !== 0x30) return false
+ if (buffer[1] !== buffer.length - 2) return false
+ if (buffer[2] !== 0x02) return false
+
+ var lenR = buffer[3]
+ if (lenR === 0) return false
+ if (5 + lenR >= buffer.length) return false
+ if (buffer[4 + lenR] !== 0x02) return false
+
+ var lenS = buffer[5 + lenR]
+ if (lenS === 0) return false
+ if ((6 + lenR + lenS) !== buffer.length) return false
+
+ if (buffer[4] & 0x80) return false
+ if (lenR > 1 && (buffer[4] === 0x00) && !(buffer[5] & 0x80)) return false
+
+ if (buffer[lenR + 6] & 0x80) return false
+ if (lenS > 1 && (buffer[lenR + 6] === 0x00) && !(buffer[lenR + 7] & 0x80)) return false
+ return true
+}
+
+function decode (buffer) {
+ if (buffer.length < 8) throw new Error('DER sequence length is too short')
+ if (buffer.length > 72) throw new Error('DER sequence length is too long')
+ if (buffer[0] !== 0x30) throw new Error('Expected DER sequence')
+ if (buffer[1] !== buffer.length - 2) throw new Error('DER sequence length is invalid')
+ if (buffer[2] !== 0x02) throw new Error('Expected DER integer')
+
+ var lenR = buffer[3]
+ if (lenR === 0) throw new Error('R length is zero')
+ if (5 + lenR >= buffer.length) throw new Error('R length is too long')
+ if (buffer[4 + lenR] !== 0x02) throw new Error('Expected DER integer (2)')
+
+ var lenS = buffer[5 + lenR]
+ if (lenS === 0) throw new Error('S length is zero')
+ if ((6 + lenR + lenS) !== buffer.length) throw new Error('S length is invalid')
+
+ if (buffer[4] & 0x80) throw new Error('R value is negative')
+ if (lenR > 1 && (buffer[4] === 0x00) && !(buffer[5] & 0x80)) throw new Error('R value excessively padded')
+
+ if (buffer[lenR + 6] & 0x80) throw new Error('S value is negative')
+ if (lenS > 1 && (buffer[lenR + 6] === 0x00) && !(buffer[lenR + 7] & 0x80)) throw new Error('S value excessively padded')
+
+ // non-BIP66 - extract R, S values
+ return {
+ r: buffer.slice(4, 4 + lenR),
+ s: buffer.slice(6 + lenR)
+ }
+}
+
+/*
+ * Expects r and s to be positive DER integers.
+ *
+ * The DER format uses the most significant bit as a sign bit (& 0x80).
+ * If the significant bit is set AND the integer is positive, a 0x00 is prepended.
+ *
+ * Examples:
+ *
+ * 0 => 0x00
+ * 1 => 0x01
+ * -1 => 0xff
+ * 127 => 0x7f
+ * -127 => 0x81
+ * 128 => 0x0080
+ * -128 => 0x80
+ * 255 => 0x00ff
+ * -255 => 0xff01
+ * 16300 => 0x3fac
+ * -16300 => 0xc054
+ * 62300 => 0x00f35c
+ * -62300 => 0xff0ca4
+*/
+function encode (r, s) {
+ var lenR = r.length
+ var lenS = s.length
+ if (lenR === 0) throw new Error('R length is zero')
+ if (lenS === 0) throw new Error('S length is zero')
+ if (lenR > 33) throw new Error('R length is too long')
+ if (lenS > 33) throw new Error('S length is too long')
+ if (r[0] & 0x80) throw new Error('R value is negative')
+ if (s[0] & 0x80) throw new Error('S value is negative')
+ if (lenR > 1 && (r[0] === 0x00) && !(r[1] & 0x80)) throw new Error('R value excessively padded')
+ if (lenS > 1 && (s[0] === 0x00) && !(s[1] & 0x80)) throw new Error('S value excessively padded')
+
+ var signature = Buffer.allocUnsafe(6 + lenR + lenS)
-// 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]
-};
+ // 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)
-// 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'
-};
+ return signature
+}
+
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
+},{"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')
-function stylizeWithColor(str, styleType) {
- var style = inspect.styles[styleType];
+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')
- if (style) {
- return '\u001b[' + inspect.colors[style][0] + 'm' + str +
- '\u001b[' + inspect.colors[style][1] + 'm';
- } else {
- return str;
- }
+ var version = payload.readUInt8(0)
+ var hash = payload.slice(1)
+
+ return { hash: hash, version: version }
}
+function toBase58Check (hash, version) {
+ typeforce(types.tuple(types.Hash160bit, types.UInt8), arguments)
-function stylizeNoColor(str, styleType) {
- return str;
-}
+ var payload = Buffer.allocUnsafe(21)
+ payload.writeUInt8(version, 0)
+ hash.copy(payload, 1)
+ return bs58check.encode(payload)
+}
-function arrayToHash(array) {
- var hash = {};
+function fromOutputScript (outputScript, network) {
+ network = network || networks.bitcoin
- array.forEach(function(val, idx) {
- hash[val] = true;
- });
+ 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)
- return hash;
+ throw new Error(bscript.toASM(outputScript) + ' has no matching Address')
}
+function toOutputScript (address, network) {
+ network = network || networks.bitcoin
-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 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)
- // Primitive types cannot have properties
- var primitive = formatPrimitive(ctx, value);
- if (primitive) {
- return primitive;
- }
+ throw new Error(address + ' has no matching Script')
+}
- // Look up the keys of the object.
- var keys = Object.keys(value);
- var visibleKeys = arrayToHash(keys);
+module.exports = {
+ fromBase58Check: fromBase58Check,
+ fromOutputScript: fromOutputScript,
+ toBase58Check: toBase58Check,
+ toOutputScript: toOutputScript
+}
- if (ctx.showHidden) {
- keys = Object.getOwnPropertyNames(value);
- }
+},{"./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')
- // 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 Transaction = require('./transaction')
- // 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);
- }
- }
+function Block () {
+ this.version = 1
+ this.prevHash = null
+ this.merkleRoot = null
+ this.timestamp = 0
+ this.bits = 0
+ this.nonce = 0
+}
- var base = '', array = false, braces = ['{', '}'];
+Block.fromBuffer = function (buffer) {
+ if (buffer.length < 80) throw new Error('Buffer too small (< 80 bytes)')
- // Make Array say that they are Array
- if (isArray(value)) {
- array = true;
- braces = ['[', ']'];
+ var offset = 0
+ function readSlice (n) {
+ offset += n
+ return buffer.slice(offset - n, offset)
}
- // Make functions say that they are functions
- if (isFunction(value)) {
- var n = value.name ? ': ' + value.name : '';
- base = ' [Function' + n + ']';
+ function readUInt32 () {
+ var i = buffer.readUInt32LE(offset)
+ offset += 4
+ return i
}
- // Make RegExps say that they are RegExps
- if (isRegExp(value)) {
- base = ' ' + RegExp.prototype.toString.call(value);
+ function readInt32 () {
+ var i = buffer.readInt32LE(offset)
+ offset += 4
+ return i
}
- // Make dates with properties first say the date
- if (isDate(value)) {
- base = ' ' + Date.prototype.toUTCString.call(value);
- }
+ var block = new Block()
+ block.version = readInt32()
+ block.prevHash = readSlice(32)
+ block.merkleRoot = readSlice(32)
+ block.timestamp = readUInt32()
+ block.bits = readUInt32()
+ block.nonce = readUInt32()
- // Make error with message first say the error
- if (isError(value)) {
- base = ' ' + formatError(value);
- }
+ if (buffer.length === 80) return block
- if (keys.length === 0 && (!array || value.length == 0)) {
- return braces[0] + base + braces[1];
+ function readVarInt () {
+ var vi = varuint.decode(buffer, offset)
+ offset += varuint.decode.bytes
+ return vi
}
- if (recurseTimes < 0) {
- if (isRegExp(value)) {
- return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
- } else {
- return ctx.stylize('[Object]', 'special');
- }
+ function readTransaction () {
+ var tx = Transaction.fromBuffer(buffer.slice(offset), true)
+ offset += tx.byteLength()
+ return tx
}
- ctx.seen.push(value);
+ var nTransactions = readVarInt()
+ block.transactions = []
- 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);
- });
+ for (var i = 0; i < nTransactions; ++i) {
+ var tx = readTransaction()
+ block.transactions.push(tx)
}
- ctx.seen.pop();
-
- return reduceToSingleString(output, base, braces);
+ return block
}
+Block.prototype.byteLength = function (headersOnly) {
+ if (headersOnly || !this.transactions) return 80
-function formatPrimitive(ctx, value) {
- if (isUndefined(value))
- return ctx.stylize('undefined', 'undefined');
- if (isString(value)) {
- var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
- .replace(/'/g, "\\'")
- .replace(/\\"/g, '"') + '\'';
- return ctx.stylize(simple, 'string');
- }
- if (isNumber(value))
- return ctx.stylize('' + value, 'number');
- if (isBoolean(value))
- return ctx.stylize('' + value, 'boolean');
- // For some reason typeof null is "object", so special case here.
- if (isNull(value))
- return ctx.stylize('null', 'null');
+ return 80 + varuint.encodingLength(this.transactions.length) + this.transactions.reduce(function (a, x) {
+ return a + x.byteLength()
+ }, 0)
}
+Block.fromHex = function (hex) {
+ return Block.fromBuffer(Buffer.from(hex, 'hex'))
+}
-function formatError(value) {
- return '[' + Error.prototype.toString.call(value) + ']';
+Block.prototype.getHash = function () {
+ return bcrypto.hash256(this.toBuffer(true))
}
+Block.prototype.getId = function () {
+ return this.getHash().reverse().toString('hex')
+}
-function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
- var output = [];
- for (var i = 0, l = value.length; i < l; ++i) {
- if (hasOwnProperty(value, String(i))) {
- output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
- String(i), true));
- } else {
- output.push('');
- }
- }
- keys.forEach(function(key) {
- if (!key.match(/^\d+$/)) {
- output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
- key, true));
- }
- });
- return output;
+Block.prototype.getUTCDate = function () {
+ var date = new Date(0) // epoch
+ date.setUTCSeconds(this.timestamp)
+
+ return date
}
+// TODO: buffer, offset compatibility
+Block.prototype.toBuffer = function (headersOnly) {
+ var buffer = Buffer.allocUnsafe(this.byteLength(headersOnly))
-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 + ']';
+ var offset = 0
+ function writeSlice (slice) {
+ slice.copy(buffer, offset)
+ offset += slice.length
}
- 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');
- }
+
+ function writeInt32 (i) {
+ buffer.writeInt32LE(i, offset)
+ offset += 4
}
- 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');
- }
+ function writeUInt32 (i) {
+ buffer.writeUInt32LE(i, offset)
+ offset += 4
}
- return name + ': ' + str;
-}
+ writeInt32(this.version)
+ writeSlice(this.prevHash)
+ writeSlice(this.merkleRoot)
+ writeUInt32(this.timestamp)
+ writeUInt32(this.bits)
+ writeUInt32(this.nonce)
+ if (headersOnly || !this.transactions) return buffer
-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);
+ varuint.encode(this.transactions.length, buffer, offset)
+ offset += varuint.encode.bytes
- if (length > 60) {
- return braces[0] +
- (base === '' ? '' : base + '\n ') +
- ' ' +
- output.join(',\n ') +
- ' ' +
- braces[1];
- }
+ this.transactions.forEach(function (tx) {
+ var txSize = tx.byteLength() // TODO: extract from toBuffer?
+ tx.toBuffer(buffer, offset)
+ offset += txSize
+ })
- return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
+ return buffer
}
+Block.prototype.toHex = function (headersOnly) {
+ return this.toBuffer(headersOnly).toString('hex')
+}
-// 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);
+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
}
-exports.isArray = isArray;
-function isBoolean(arg) {
- return typeof arg === 'boolean';
+Block.calculateMerkleRoot = function (transactions) {
+ typeforce([{ getHash: types.Function }], transactions)
+ if (transactions.length === 0) throw TypeError('Cannot compute merkle root for zero transactions')
+
+ var hashes = transactions.map(function (transaction) {
+ return transaction.getHash()
+ })
+
+ return fastMerkleRoot(hashes, bcrypto.hash256)
}
-exports.isBoolean = isBoolean;
-function isNull(arg) {
- return arg === null;
+Block.prototype.checkMerkleRoot = function () {
+ if (!this.transactions) return false
+
+ var actualMerkleRoot = Block.calculateMerkleRoot(this.transactions)
+ return this.merkleRoot.compare(actualMerkleRoot) === 0
}
-exports.isNull = isNull;
-function isNullOrUndefined(arg) {
- return arg == null;
+Block.prototype.checkProofOfWork = function () {
+ var hash = this.getHash().reverse()
+ var target = Block.calculateTarget(this.bits)
+
+ return hash.compare(target) <= 0
}
-exports.isNullOrUndefined = isNullOrUndefined;
-function isNumber(arg) {
- return typeof arg === 'number';
+module.exports = Block
+
+},{"./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')
+
+// 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')
}
-exports.isNumber = isNumber;
-function isString(arg) {
- return typeof arg === 'string';
+function readUInt64LE (buffer, offset) {
+ var a = buffer.readUInt32LE(offset)
+ var b = buffer.readUInt32LE(offset + 4)
+ b *= 0x100000000
+
+ verifuint(b + a, 0x001fffffffffffff)
+
+ return b + a
}
-exports.isString = isString;
-function isSymbol(arg) {
- return typeof arg === 'symbol';
+function writeUInt64LE (buffer, value, offset) {
+ verifuint(value, 0x001fffffffffffff)
+
+ buffer.writeInt32LE(value & -1, offset)
+ buffer.writeUInt32LE(Math.floor(value / 0x100000000), offset + 4)
+ return offset + 8
}
-exports.isSymbol = isSymbol;
-function isUndefined(arg) {
- return arg === void 0;
+// TODO: remove in 4.0.0?
+function readVarInt (buffer, offset) {
+ var result = varuint.decode(buffer, offset)
+
+ return {
+ number: result,
+ size: varuint.decode.bytes
+ }
}
-exports.isUndefined = isUndefined;
-function isRegExp(re) {
- return isObject(re) && objectToString(re) === '[object RegExp]';
+// TODO: remove in 4.0.0?
+function writeVarInt (buffer, number, offset) {
+ varuint.encode(number, buffer, offset)
+ return varuint.encode.bytes
}
-exports.isRegExp = isRegExp;
-function isObject(arg) {
- return typeof arg === 'object' && arg !== null;
+module.exports = {
+ pushDataSize: pushdata.encodingLength,
+ readPushDataInt: pushdata.decode,
+ readUInt64LE: readUInt64LE,
+ readVarInt: readVarInt,
+ varIntBuffer: varuint.encode,
+ varIntSize: varuint.encodingLength,
+ writePushDataInt: pushdata.encode,
+ writeUInt64LE: writeUInt64LE,
+ writeVarInt: writeVarInt
}
-exports.isObject = isObject;
-function isDate(d) {
- return isObject(d) && objectToString(d) === '[object Date]';
+},{"pushdata-bitcoin":95,"varuint-bitcoin":111}],45:[function(require,module,exports){
+var createHash = require('create-hash')
+
+function ripemd160 (buffer) {
+ return createHash('rmd160').update(buffer).digest()
}
-exports.isDate = isDate;
-function isError(e) {
- return isObject(e) &&
- (objectToString(e) === '[object Error]' || e instanceof Error);
+function sha1 (buffer) {
+ return createHash('sha1').update(buffer).digest()
}
-exports.isError = isError;
-function isFunction(arg) {
- return typeof arg === 'function';
+function sha256 (buffer) {
+ return createHash('sha256').update(buffer).digest()
}
-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 hash160 (buffer) {
+ return ripemd160(sha256(buffer))
}
-exports.isPrimitive = isPrimitive;
-exports.isBuffer = require('./support/isBuffer');
+function hash256 (buffer) {
+ return sha256(sha256(buffer))
+}
-function objectToString(o) {
- return Object.prototype.toString.call(o);
+module.exports = {
+ hash160: hash160,
+ hash256: hash256,
+ ripemd160: ripemd160,
+ sha1: sha1,
+ sha256: sha256
}
+},{"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')
+
+var BigInteger = require('bigi')
+var ECSignature = require('./ecsignature')
+
+var ZERO = Buffer.alloc(1, 0)
+var ONE = Buffer.alloc(1, 1)
+
+var ecurve = require('ecurve')
+var secp256k1 = ecurve.getCurveByName('secp256k1')
+
+// https://tools.ietf.org/html/rfc6979#section-3.2
+function deterministicGenerateK (hash, x, checkSig) {
+ typeforce(types.tuple(
+ types.Hash256bit,
+ types.Buffer256bit,
+ types.Function
+ ), arguments)
+
+ // Step A, ignored as hash already provided
+ // Step B
+ // Step C
+ var k = Buffer.alloc(32, 0)
+ var v = Buffer.alloc(32, 1)
+
+ // Step D
+ k = createHmac('sha256', k)
+ .update(v)
+ .update(ZERO)
+ .update(x)
+ .update(hash)
+ .digest()
+
+ // Step E
+ v = createHmac('sha256', k).update(v).digest()
+
+ // Step F
+ k = createHmac('sha256', k)
+ .update(v)
+ .update(ONE)
+ .update(x)
+ .update(hash)
+ .digest()
+
+ // Step G
+ v = createHmac('sha256', k).update(v).digest()
+
+ // Step H1/H2a, ignored as tlen === qlen (256 bit)
+ // Step H2b
+ v = createHmac('sha256', k).update(v).digest()
+
+ var T = BigInteger.fromBuffer(v)
+
+ // Step H3, repeat until T is within the interval [1, n - 1] and is suitable for ECDSA
+ while (T.signum() <= 0 || T.compareTo(secp256k1.n) >= 0 || !checkSig(T)) {
+ k = createHmac('sha256', k)
+ .update(v)
+ .update(ZERO)
+ .digest()
+
+ v = createHmac('sha256', k).update(v).digest()
+
+ // Step H1/H2a, again, ignored as tlen === qlen (256 bit)
+ // Step H2b again
+ v = createHmac('sha256', k).update(v).digest()
+ T = BigInteger.fromBuffer(v)
+ }
-function pad(n) {
- return n < 10 ? '0' + n.toString(10) : n.toString(10);
+ return T
}
+var N_OVER_TWO = secp256k1.n.shiftRight(1)
-var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
- 'Oct', 'Nov', 'Dec'];
+function sign (hash, d) {
+ typeforce(types.tuple(types.Hash256bit, types.BigInt), arguments)
-// 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 x = d.toBuffer(32)
+ var e = BigInteger.fromBuffer(hash)
+ var n = secp256k1.n
+ var G = secp256k1.G
+ var r, s
+ deterministicGenerateK(hash, x, function (k) {
+ var Q = G.multiply(k)
-// 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));
-};
+ if (secp256k1.isInfinity(Q)) return false
+ r = Q.affineX.mod(n)
+ if (r.signum() === 0) return false
-/**
- * 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');
+ s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n)
+ if (s.signum() === 0) return false
-exports._extend = function(origin, add) {
- // Don't do anything if add isn't an object
- if (!add || !isObject(add)) return origin;
+ return true
+ })
- var keys = Object.keys(add);
- var i = keys.length;
- while (i--) {
- origin[keys[i]] = add[keys[i]];
+ // enforce low S values, see bip62: 'low s values in signatures'
+ if (s.compareTo(N_OVER_TWO) > 0) {
+ s = n.subtract(s)
}
- return origin;
-};
-function hasOwnProperty(obj, prop) {
- return Object.prototype.hasOwnProperty.call(obj, prop);
+ return new ECSignature(r, s)
}
-}).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
+function verify (hash, signature, Q) {
+ typeforce(types.tuple(
+ types.Hash256bit,
+ types.ECSignature,
+ types.ECPoint
+ ), arguments)
-var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
-var ALPHABET_MAP = {}
-for(var i = 0; i < ALPHABET.length; i++) {
- ALPHABET_MAP[ALPHABET.charAt(i)] = i
-}
-var BASE = 58
+ var n = secp256k1.n
+ var G = secp256k1.G
-function encode(buffer) {
- if (buffer.length === 0) return ''
+ var r = signature.r
+ var s = signature.s
- var i, j, digits = [0]
- for (i = 0; i < buffer.length; i++) {
- for (j = 0; j < digits.length; j++) digits[j] <<= 8
+ // 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
- digits[0] += buffer[i]
+ // 1.4.2 H = Hash(M), already done by the user
+ // 1.4.3 e = H
+ var e = BigInteger.fromBuffer(hash)
- var carry = 0
- for (j = 0; j < digits.length; ++j) {
- digits[j] += carry
+ // Compute s^-1
+ var sInv = s.modInverse(n)
- carry = (digits[j] / BASE) | 0
- digits[j] %= BASE
- }
+ // 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)
- while (carry) {
- digits.push(carry % BASE)
+ // 1.4.5 Compute R = (xR, yR)
+ // R = u1G + u2Q
+ var R = G.multiplyTwo(u1, Q, u2)
- carry = (carry / BASE) | 0
- }
- }
+ // 1.4.5 (cont.) Enforce R is not at infinity
+ if (secp256k1.isInfinity(R)) return false
- // deal with leading zeros
- for (i = 0; buffer[i] === 0 && i < buffer.length - 1; i++) digits.push(0)
+ // 1.4.6 Convert the field element R.x to an integer
+ var xR = R.affineX
- // convert digits to a string
- var stringOutput = ""
- for (var i = digits.length - 1; i >= 0; i--) {
- stringOutput = stringOutput + ALPHABET[digits[i]]
- }
- return stringOutput
-}
+ // 1.4.7 Set v = xR mod n
+ var v = xR.mod(n)
-function decode(string) {
- if (string.length === 0) return []
+ // 1.4.8 If v = r, output "valid", and if v != r, output "invalid"
+ return v.equals(r)
+}
- 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')
+module.exports = {
+ deterministicGenerateK: deterministicGenerateK,
+ sign: sign,
+ verify: verify,
- for (j = 0; j < bytes.length; j++) bytes[j] *= BASE
- bytes[0] += ALPHABET_MAP[c]
+ // TODO: remove
+ __curve: secp256k1
+}
- var carry = 0
- for (j = 0; j < bytes.length; ++j) {
- bytes[j] += carry
+},{"./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')
- carry = bytes[j] >> 8
- bytes[j] &= 0xff
- }
+var NETWORKS = require('./networks')
+var BigInteger = require('bigi')
- while (carry) {
- bytes.push(carry & 0xff)
+var ecurve = require('ecurve')
+var secp256k1 = ecdsa.__curve
- carry >>= 8
- }
+function ECPair (d, Q, options) {
+ if (options) {
+ typeforce({
+ compressed: types.maybe(types.Boolean),
+ network: types.maybe(types.Network)
+ }, options)
}
- // deal with leading zeros
- for (i = 0; string[i] === '1' && i < string.length - 1; i++) bytes.push(0)
-
- return bytes.reverse()
-}
+ options = options || {}
-module.exports = {
- encode: encode,
- decode: decode
-}
+ 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')
-},{}],31:[function(require,module,exports){
-(function (Buffer){
-'use strict'
+ this.d = d
+ } else {
+ typeforce(types.ECPoint, Q)
-var base58 = require('bs58')
-var createHash = require('create-hash')
+ this.__Q = Q
+ }
-// SHA256(SHA256(buffer))
-function sha256x2 (buffer) {
- buffer = createHash('sha256').update(buffer).digest()
- return createHash('sha256').update(buffer).digest()
+ this.compressed = options.compressed === undefined ? true : options.compressed
+ this.network = options.network || NETWORKS.bitcoin
}
-// Encode a buffer as a base58-check encoded string
-function encode (payload) {
- var checksum = sha256x2(payload).slice(0, 4)
+Object.defineProperty(ECPair.prototype, 'Q', {
+ get: function () {
+ if (!this.__Q && this.d) {
+ this.__Q = secp256k1.G.multiply(this.d)
+ }
- return base58.encode(Buffer.concat([
- payload,
- checksum
- ]))
+ return this.__Q
+ }
+})
+
+ECPair.fromPublicKeyBuffer = function (buffer, network) {
+ var Q = ecurve.Point.decodeFrom(secp256k1, buffer)
+
+ return new ECPair(null, Q, {
+ compressed: Q.compressed,
+ network: network
+ })
}
-// Decode a base58-check encoded string to a buffer
-function decode (string) {
- var buffer = new Buffer(base58.decode(string))
+ECPair.fromWIF = function (string, network) {
+ var decoded = wif.decode(string)
+ var version = decoded.version
- var payload = buffer.slice(0, -4)
- var checksum = buffer.slice(-4)
- var newChecksum = sha256x2(payload).slice(0, 4)
+ // list of networks?
+ if (types.Array(network)) {
+ network = network.filter(function (x) {
+ return version === x.wif
+ }).pop()
+
+ if (!network) throw new Error('Unknown network version')
- for (var i = 0; i < newChecksum.length; ++i) {
- if (newChecksum[i] === checksum[i]) continue
+ // otherwise, assume a network object (or default to bitcoin)
+ } else {
+ network = network || NETWORKS.bitcoin
- throw new Error('Invalid checksum')
+ if (version !== network.wif) throw new Error('Invalid network version')
}
- return payload
-}
+ var d = BigInteger.fromBuffer(decoded.privateKey)
-module.exports = {
- encode: encode,
- decode: decode
+ return new ECPair(d, null, {
+ compressed: decoded.compressed,
+ network: network
+ })
}
-}).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)
+ECPair.makeRandom = function (options) {
+ options = options || {}
- this._hash = hash
- this.buffers = []
-}
+ var rng = options.rng || randomBytes
-inherits(HashNoConstructor, Transform)
+ var d
+ do {
+ var buffer = rng(32)
+ typeforce(types.Buffer256bit, buffer)
-HashNoConstructor.prototype._transform = function (data, _, next) {
- this.buffers.push(data)
+ d = BigInteger.fromBuffer(buffer)
+ } while (d.signum() <= 0 || d.compareTo(secp256k1.n) >= 0)
- next()
+ return new ECPair(d, null, options)
}
-HashNoConstructor.prototype._flush = function (next) {
- this.push(this.digest())
- next()
+ECPair.prototype.getAddress = function () {
+ return baddress.toBase58Check(bcrypto.hash160(this.getPublicKeyBuffer()), this.getNetwork().pubKeyHash)
}
-HashNoConstructor.prototype.update = function (data, enc) {
- if (typeof data === 'string') {
- data = new Buffer(data, enc)
- }
+ECPair.prototype.getNetwork = function () {
+ return this.network
+}
- this.buffers.push(data)
- return this
+ECPair.prototype.getPublicKeyBuffer = function () {
+ return this.Q.getEncoded(this.compressed)
}
-HashNoConstructor.prototype.digest = function (enc) {
- var buf = Buffer.concat(this.buffers)
- var r = this._hash(buf)
- this.buffers = null
+ECPair.prototype.sign = function (hash) {
+ if (!this.d) throw new Error('Missing private key')
- return enc ? r.toString(enc) : r
+ return ecdsa.sign(hash, this.d)
}
-function Hash(hash) {
- Transform.call(this)
+ECPair.prototype.toWIF = function () {
+ if (!this.d) throw new Error('Missing private key')
- this._hash = hash
+ return wif.encode(this.network.wif, this.d.toBuffer(32), this.compressed)
}
-inherits(Hash, Transform)
+ECPair.prototype.verify = function (hash, signature) {
+ return ecdsa.verify(hash, signature, this.Q)
+}
-Hash.prototype._transform = function (data, enc, next) {
- if (enc) data = new Buffer(data, enc)
+module.exports = ECPair
- this._hash.update(data)
+},{"./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')
- next()
-}
+var BigInteger = require('bigi')
-Hash.prototype._flush = function (next) {
- this.push(this._hash.digest())
- this._hash = null
+function ECSignature (r, s) {
+ typeforce(types.tuple(types.BigInt, types.BigInt), arguments)
- next()
+ this.r = r
+ this.s = s
}
-Hash.prototype.update = function (data, enc) {
- if (typeof data === 'string') {
- data = new Buffer(data, enc)
- }
+ECSignature.parseCompact = function (buffer) {
+ if (buffer.length !== 65) throw new Error('Invalid signature length')
- this._hash.update(data)
- return this
-}
+ var flagByte = buffer.readUInt8(0) - 27
+ if (flagByte !== (flagByte & 7)) throw new Error('Invalid signature parameter')
-Hash.prototype.digest = function (enc) {
- var outData = this._hash.digest()
+ var compressed = !!(flagByte & 4)
+ var recoveryParam = flagByte & 3
- return enc ? outData.toString(enc) : outData
+ 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)
+ }
}
-module.exports = function createHash (alg) {
- if ('md5' === alg) return new HashNoConstructor(md5)
- if ('rmd160' === alg) return new HashNoConstructor(rmd160)
+ECSignature.fromDER = function (buffer) {
+ var decode = bip66.decode(buffer)
+ var r = BigInteger.fromDERInteger(decode.r)
+ var s = BigInteger.fromDERInteger(decode.s)
- return new Hash(sha(alg))
+ return new ECSignature(r, s)
}
-}).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;
+// 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
-function toArray(buf, bigEndian) {
- if ((buf.length % intSize) !== 0) {
- var len = buf.length + (intSize - (buf.length % intSize));
- buf = Buffer.concat([buf, zeroBuffer], len);
- }
+ if (hashTypeMod <= 0x00 || hashTypeMod >= 0x04) throw new Error('Invalid hashType ' + hashType)
- 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 {
+ signature: ECSignature.fromDER(buffer.slice(0, -1)),
+ hashType: hashType
}
- return arr;
}
-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);
+ECSignature.prototype.toCompact = function (i, compressed) {
+ if (compressed) {
+ i += 4
}
- return buf;
+
+ 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
}
-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);
+ECSignature.prototype.toDER = function () {
+ var r = Buffer.from(this.r.toDERInteger())
+ var s = Buffer.from(this.s.toDERInteger())
+
+ return bip66.encode(r, s)
}
-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 helpers = require('./helpers');
+ECSignature.prototype.toScriptSignature = function (hashType) {
+ var hashTypeMod = hashType & ~0x80
+ if (hashTypeMod <= 0 || hashTypeMod >= 4) throw new Error('Invalid hashType ' + hashType)
-/*
- * 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 hashTypeBuffer = Buffer.alloc(1)
+ hashTypeBuffer.writeUInt8(hashType, 0)
- var a = 1732584193;
- var b = -271733879;
- var c = -1732584194;
- var d = 271733878;
+ return Buffer.concat([this.toDER(), hashTypeBuffer])
+}
- for(var i = 0; i < x.length; i += 16)
- {
- var olda = a;
- var oldb = b;
- var oldc = c;
- var oldd = d;
+module.exports = ECSignature
- 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);
+}).call(this,require("buffer").Buffer)
+},{"./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')
- 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);
+var BigInteger = require('bigi')
+var ECPair = require('./ecpair')
- 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);
+var ecurve = require('ecurve')
+var curve = ecurve.getCurveByName('secp256k1')
- 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);
+function HDNode (keyPair, chainCode) {
+ typeforce(types.tuple('ECPair', types.Buffer256bit), arguments)
- 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);
+ 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
}
-/*
- * 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);
-}
+HDNode.HIGHEST_BIT = 0x80000000
+HDNode.LENGTH = 78
+HDNode.MASTER_SECRET = Buffer.from('Bitcoin seed', 'utf8')
-/*
- * 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);
+HDNode.fromSeedBuffer = function (seed, network) {
+ typeforce(types.tuple(types.Buffer, types.maybe(types.Network)), arguments)
+
+ if (seed.length < 16) throw new TypeError('Seed should be at least 128 bits')
+ if (seed.length > 64) throw new TypeError('Seed should be at most 512 bits')
+
+ var I = createHmac('sha512', HDNode.MASTER_SECRET).update(seed).digest()
+ var IL = I.slice(0, 32)
+ var IR = I.slice(32)
+
+ // In case IL is 0 or >= n, the master key is invalid
+ // This is handled by the ECPair constructor
+ var pIL = BigInteger.fromBuffer(IL)
+ var keyPair = new ECPair(pIL, null, {
+ network: network
+ })
+
+ return new HDNode(keyPair, IR)
}
-/*
- * Bitwise rotate a 32-bit number to the left.
- */
-function bit_rol(num, cnt)
-{
- return (num << cnt) | (num >>> (32 - cnt));
+HDNode.fromSeedHex = function (hex, network) {
+ return HDNode.fromSeedBuffer(Buffer.from(hex, 'hex'), network)
}
-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.
+HDNode.fromBase58 = function (string, networks) {
+ var buffer = base58check.decode(string)
+ if (buffer.length !== 78) throw new Error('Invalid buffer length')
-Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ // 4 bytes: version bytes
+ var version = buffer.readUInt32BE(0)
+ var network
- - 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.
+ // list of networks?
+ if (Array.isArray(networks)) {
+ network = networks.filter(function (x) {
+ return version === x.bip32.private ||
+ version === x.bip32.public
+ }).pop()
-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.
-*/
+ if (!network) throw new Error('Unknown network version')
-// 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
-]
+ // otherwise, assume a network object (or default to bitcoin)
+ } else {
+ network = networks || NETWORKS.bitcoin
+ }
-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
-]
+ if (version !== network.bip32.private &&
+ version !== network.bip32.public) throw new Error('Invalid network version')
-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
-]
+ // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ...
+ var depth = buffer[4]
-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
-]
+ // 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')
+ }
-var hl = [0x00000000, 0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xA953FD4E]
-var hr = [0x50A28BE6, 0x5C4DD124, 0x6D703EF3, 0x7A6D76E9, 0x00000000]
+ // 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')
-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 words
-}
+ // 32 bytes: the chain code
+ var chainCode = buffer.slice(13, 45)
+ var keyPair
-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
-}
+ // 33 bytes: private key data (0x00 + k)
+ if (version === network.bip32.private) {
+ if (buffer.readUInt8(45) !== 0x00) throw new Error('Invalid private key')
-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]
+ var d = BigInteger.fromBuffer(buffer.slice(46, 78))
+ keyPair = new ECPair(d, null, { network: network })
- // Swap
- M[offset_i] = (
- (((M_offset_i << 8) | (M_offset_i >>> 24)) & 0x00ff00ff) |
- (((M_offset_i << 24) | (M_offset_i >>> 8)) & 0xff00ff00)
- )
- }
+ // 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
- // Working variables
- var al, bl, cl, dl, el
- var ar, br, cr, dr, er
+ // 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)
- ar = al = H[0]
- br = bl = H[1]
- cr = cl = H[2]
- dr = dl = H[3]
- er = el = H[4]
+ keyPair = new ECPair(null, Q, { network: network })
+ }
- // 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
+ var hd = new HDNode(keyPair, chainCode)
+ hd.depth = depth
+ hd.index = index
+ hd.parentFingerprint = parentFingerprint
- 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]
- }
+ return hd
+}
- t = t | 0
- t = rotl(t, sr[i])
- t = (t + er) | 0
- ar = er
- er = dr
- dr = rotl(cr, 10)
- cr = br
- br = t
- }
+HDNode.prototype.getAddress = function () {
+ return this.keyPair.getAddress()
+}
- // 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
+HDNode.prototype.getIdentifier = function () {
+ return bcrypto.hash160(this.keyPair.getPublicKeyBuffer())
}
-function f1 (x, y, z) {
- return ((x) ^ (y) ^ (z))
+HDNode.prototype.getFingerprint = function () {
+ return this.getIdentifier().slice(0, 4)
}
-function f2 (x, y, z) {
- return (((x) & (y)) | ((~x) & (z)))
+HDNode.prototype.getNetwork = function () {
+ return this.keyPair.getNetwork()
}
-function f3 (x, y, z) {
- return (((x) | (~(y))) ^ (z))
+HDNode.prototype.getPublicKeyBuffer = function () {
+ return this.keyPair.getPublicKeyBuffer()
}
-function f4 (x, y, z) {
- return (((x) & (z)) | ((y) & (~(z))))
+HDNode.prototype.neutered = function () {
+ var neuteredKeyPair = new ECPair(null, this.keyPair.Q, {
+ network: this.keyPair.network
+ })
+
+ var neutered = new HDNode(neuteredKeyPair, this.chainCode)
+ neutered.depth = this.depth
+ neutered.index = this.index
+ neutered.parentFingerprint = this.parentFingerprint
+
+ return neutered
}
-function f5 (x, y, z) {
- return ((x) ^ ((y) | (~(z))))
+HDNode.prototype.sign = function (hash) {
+ return this.keyPair.sign(hash)
}
-function rotl (x, n) {
- return (x << n) | (x >>> (32 - n))
+HDNode.prototype.verify = function (hash, signature) {
+ return this.keyPair.verify(hash, signature)
}
-function ripemd160 (message) {
- var H = [0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0]
+HDNode.prototype.toBase58 = function (__isPrivate) {
+ if (__isPrivate !== undefined) throw new TypeError('Unsupported argument in 2.0.0')
- if (typeof message === 'string') {
- message = new Buffer(message, 'utf8')
- }
+ // Version
+ var network = this.keyPair.network
+ var version = (!this.isNeutered()) ? network.bip32.private : network.bip32.public
+ var buffer = Buffer.allocUnsafe(78)
- var m = bytesToWords(message)
+ // 4 bytes: version bytes
+ buffer.writeUInt32BE(version, 0)
- var nBitsLeft = message.length * 8
- var nBitsTotal = message.length * 8
+ // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ....
+ buffer.writeUInt8(this.depth, 4)
- // 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)
- )
+ // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
+ buffer.writeUInt32BE(this.parentFingerprint, 5)
- for (var i = 0; i < m.length; i += 16) {
- processBlock(H, m, i)
- }
+ // 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)
- // swap endian
- for (i = 0; i < 5; i++) {
- // shortcut
- var H_i = H[i]
+ // 32 bytes: the chain code
+ this.chainCode.copy(buffer, 13)
- // Swap
- H[i] = (((H_i << 8) | (H_i >>> 24)) & 0x00ff00ff) |
- (((H_i << 24) | (H_i >>> 8)) & 0xff00ff00)
+ // 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)
}
- var digestbytes = wordsToBytes(H)
- return new Buffer(digestbytes)
+ return base58check.encode(buffer)
}
-module.exports = ripemd160
+// https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#child-key-derivation-ckd-functions
+HDNode.prototype.derive = function (index) {
+ typeforce(types.UInt32, index)
-}).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
-}
+ var isHardened = index >= HDNode.HIGHEST_BIT
+ var data = Buffer.allocUnsafe(37)
-Hash.prototype.update = function (data, enc) {
- if (typeof data === 'string') {
- enc = enc || 'utf8'
- data = new Buffer(data, enc)
- }
+ // Hardened child
+ if (isHardened) {
+ if (this.isNeutered()) throw new TypeError('Could not derive hardened child key')
- var l = this._len += data.length
- var s = this._s || 0
- var f = 0
- var buffer = this._block
+ // data = 0x00 || ser256(kpar) || ser32(index)
+ data[0] = 0x00
+ this.keyPair.d.toBuffer(32).copy(data, 1)
+ data.writeUInt32BE(index, 33)
- while (s < l) {
- var t = Math.min(data.length, f + this._blockSize - (s % this._blockSize))
- var ch = (t - f)
+ // Normal child
+ } else {
+ // data = serP(point(kpar)) || ser32(index)
+ // = serP(Kpar) || ser32(index)
+ this.keyPair.getPublicKeyBuffer().copy(data, 0)
+ data.writeUInt32BE(index, 33)
+ }
- for (var i = 0; i < ch; i++) {
- buffer[(s % this._blockSize) + i] = data[i + f]
- }
+ var I = createHmac('sha512', this.chainCode).update(data).digest()
+ var IL = I.slice(0, 32)
+ var IR = I.slice(32)
- s += ch
- f += ch
+ var pIL = BigInteger.fromBuffer(IL)
- if ((s % this._blockSize) === 0) {
- this._update(buffer)
- }
+ // In case parse256(IL) >= n, proceed with the next value for i
+ if (pIL.compareTo(curve.n) >= 0) {
+ return this.derive(index + 1)
}
- this._s = s
- return this
-}
+ // 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)
-Hash.prototype.digest = function (enc) {
- // Suppose the length of the message M, in bits, is l
- var l = this._len * 8
+ // In case ki == 0, proceed with the next value for i
+ if (ki.signum() === 0) {
+ return this.derive(index + 1)
+ }
- // Append the bit 1 to the end of the message
- this._block[this._len % this._blockSize] = 0x80
+ derivedKeyPair = new ECPair(ki, null, {
+ network: this.keyPair.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)
+ // 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)
- if (l % (this._blockSize * 8) >= this._finalSize * 8) {
- this._update(this._block)
- this._block.fill(0)
+ // 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
+ })
}
- // 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 hd = new HDNode(derivedKeyPair, IR)
+ hd.depth = this.depth + 1
+ hd.index = index
+ hd.parentFingerprint = this.getFingerprint().readUInt32BE(0)
- var hash = this._update(this._block) || this._hash()
+ return hd
+}
- return enc ? hash.toString(enc) : hash
+HDNode.prototype.deriveHardened = function (index) {
+ typeforce(types.UInt31, index)
+
+ // Only derives hardened private keys by default
+ return this.derive(index + HDNode.HIGHEST_BIT)
}
-Hash.prototype._update = function () {
- throw new Error('_update must be implemented by subclass')
+// Private === not neutered
+// Public === neutered
+HDNode.prototype.isNeutered = function () {
+ return !(this.keyPair.d)
}
-module.exports = Hash
+HDNode.prototype.derivePath = function (path) {
+ typeforce(types.BIP32Path, path)
-}).call(this,require("buffer").Buffer)
-},{"buffer":7}],38:[function(require,module,exports){
-var exports = module.exports = function SHA (algorithm) {
- algorithm = algorithm.toLowerCase()
+ var splitPath = path.split('/')
+ if (splitPath[0] === 'm') {
+ if (this.parentFingerprint) {
+ throw new Error('Not a master node')
+ }
- var Algorithm = exports[algorithm]
- if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')
+ splitPath = splitPath.slice(1)
+ }
- return new Algorithm()
+ 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)
}
-exports.sha = require('./sha')
-exports.sha1 = require('./sha1')
-exports.sha224 = require('./sha224')
-exports.sha256 = require('./sha256')
-exports.sha384 = require('./sha384')
-exports.sha512 = require('./sha512')
-
-},{"./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.
- */
+module.exports = HDNode
-var inherits = require('inherits')
-var Hash = require('./hash')
+},{"./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'),
-var W = new Array(80)
+ 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')
+}
-function Sha () {
- this.init()
- this._w = W
+},{"./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
- Hash.call(this, 64, 56)
+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
+ }
}
-inherits(Sha, Hash)
+},{}],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')
-Sha.prototype.init = function () {
- this._a = 0x67452301 | 0
- this._b = 0xefcdab89 | 0
- this._c = 0x98badcfe | 0
- this._d = 0x10325476 | 0
- this._e = 0xc3d2e1f0 | 0
+var OPS = require('bitcoin-ops')
+var REVERSE_OPS = require('bitcoin-ops/map')
+var OP_INT_BASE = OPS.OP_RESERVED // OP_1 - 1
- return this
+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)
}
-Sha.prototype._update = function (M) {
- var W = this._w
-
- var a = this._a
- var b = this._b
- var c = this._c
- var d = this._d
- var e = this._e
-
- var j = 0, k
+function isPushOnly (value) {
+ return types.Array(value) && value.every(isPushOnlyChunk)
+}
- /*
- * 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
+function compile (chunks) {
+ // TODO: remove me
+ if (Buffer.isBuffer(chunks)) return chunks
- var t = rol(a, 5) + f + e + w + k
+ typeforce(types.Array, chunks)
- e = d
- d = c
- c = rol(b, 30)
- b = a
- a = t
- j++
- }
+ 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
+ }
- 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)
+ return accum + pushdata.encodingLength(chunk.length) + chunk.length
+ }
- 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
-}
+ // opcode
+ return accum + 1
+ }, 0.0)
-Sha.prototype._hash = function () {
- var H = new Buffer(20)
+ var buffer = Buffer.allocUnsafe(bufferSize)
+ var offset = 0
- 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)
+ 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
+ }
- return H
-}
+ if (chunk.length === 1 && chunk[0] === 0x81) {
+ buffer.writeUInt8(OPS.OP_1NEGATE, offset)
+ offset += 1
+ return
+ }
-module.exports = Sha
+ offset += pushdata.encode(buffer, chunk.length, offset)
+ chunk.copy(buffer, offset)
+ offset += chunk.length
-}).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.
- */
+ // opcode
+ } else {
+ buffer.writeUInt8(chunk, offset)
+ offset += 1
+ }
+ })
-var inherits = require('inherits')
-var Hash = require('./hash')
+ if (offset !== buffer.length) throw new Error('Could not decode chunks')
+ return buffer
+}
-var W = new Array(80)
+function decompile (buffer) {
+ // TODO: remove me
+ if (types.Array(buffer)) return buffer
-function Sha1 () {
- this.init()
- this._w = W
+ typeforce(types.Buffer, buffer)
- Hash.call(this, 64, 56)
-}
+ var chunks = []
+ var i = 0
-inherits(Sha1, Hash)
+ while (i < buffer.length) {
+ var opcode = buffer[i]
-Sha1.prototype.init = function () {
- this._a = 0x67452301 | 0
- this._b = 0xefcdab89 | 0
- this._c = 0x98badcfe | 0
- this._d = 0x10325476 | 0
- this._e = 0xc3d2e1f0 | 0
+ // data chunk
+ if ((opcode > OPS.OP_0) && (opcode <= OPS.OP_PUSHDATA4)) {
+ var d = pushdata.decode(buffer, i)
- return this
-}
+ // did reading a pushDataInt fail? empty script
+ if (d === null) return []
+ i += d.size
-/*
- * Bitwise rotate a 32-bit number to the left.
- */
-function rol (num, cnt) {
- return (num << cnt) | (num >>> (32 - cnt))
-}
+ // attempt to read too much data? empty script
+ if (i + d.number > buffer.length) return []
-Sha1.prototype._update = function (M) {
- var W = this._w
+ var data = buffer.slice(i, i + d.number)
+ i += d.number
- var a = this._a
- var b = this._b
- var c = this._c
- var d = this._d
- var e = this._e
+ chunks.push(data)
- var j = 0, k
+ // opcode
+ } else {
+ chunks.push(opcode)
- function calcW () { return rol(W[j - 3] ^ W[j - 8] ^ W[j - 14] ^ W[j - 16], 1) }
- function loop (w, f) {
- W[j] = w
+ i += 1
+ }
+ }
- var t = rol(a, 5) + f + e + w + k
+ return chunks
+}
- e = d
- d = c
- c = rol(b, 30)
- b = a
- a = t
- j++
+function toASM (chunks) {
+ if (Buffer.isBuffer(chunks)) {
+ chunks = decompile(chunks)
}
- 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)
+ return chunks.map(function (chunk) {
+ // data?
+ if (Buffer.isBuffer(chunk)) return chunk.toString('hex')
- 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
+ // opcode!
+ return REVERSE_OPS[chunk]
+ }).join(' ')
}
-Sha1.prototype._hash = function () {
- var H = new Buffer(20)
+function fromASM (asm) {
+ typeforce(types.String, asm)
- 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 compile(asm.split(' ').map(function (chunkStr) {
+ // opcode?
+ if (OPS[chunkStr] !== undefined) return OPS[chunkStr]
+ typeforce(types.Hex, chunkStr)
- return H
+ // data!
+ return Buffer.from(chunkStr, 'hex')
+ }))
}
-module.exports = Sha1
-
-}).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
- *
- */
+function toStack (chunks) {
+ chunks = decompile(chunks)
+ typeforce(isPushOnly, chunks)
-var inherits = require('inherits')
-var Sha256 = require('./sha256')
-var Hash = require('./hash')
+ return chunks.map(function (op) {
+ if (Buffer.isBuffer(op)) return op
+ if (op === OPS.OP_0) return Buffer.allocUnsafe(0)
-var W = new Array(64)
+ return scriptNumber.encode(op - OP_INT_BASE)
+ })
+}
-function Sha224 () {
- this.init()
+function isCanonicalPubKey (buffer) {
+ if (!Buffer.isBuffer(buffer)) return false
+ if (buffer.length < 33) return false
- this._w = W // new Array(64)
+ switch (buffer[0]) {
+ case 0x02:
+ case 0x03:
+ return buffer.length === 33
+ case 0x04:
+ return buffer.length === 65
+ }
- Hash.call(this, 64, 56)
+ return false
}
-inherits(Sha224, Sha256)
+function isDefinedHashType (hashType) {
+ var hashTypeMod = hashType & ~0x80
-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
+// return hashTypeMod > SIGHASH_ALL && hashTypeMod < SIGHASH_SINGLE
+ return hashTypeMod > 0x00 && hashTypeMod < 0x04
+}
- return this
+function isCanonicalSignature (buffer) {
+ if (!Buffer.isBuffer(buffer)) return false
+ if (!isDefinedHashType(buffer[buffer.length - 1])) return false
+
+ return bip66.check(buffer.slice(0, -1))
}
-Sha224.prototype._hash = function () {
- var H = new Buffer(28)
+module.exports = {
+ compile: compile,
+ decompile: decompile,
+ fromASM: fromASM,
+ toASM: toASM,
+ toStack: toStack,
- 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)
+ number: require('./script_number'),
- return H
+ isCanonicalPubKey: isCanonicalPubKey,
+ isCanonicalSignature: isCanonicalSignature,
+ isPushOnly: isPushOnly,
+ isDefinedHashType: isDefinedHashType
}
-module.exports = Sha224
+var templates = require('./templates')
+for (var key in templates) {
+ module.exports[key] = templates[key]
+}
-}).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
- *
- */
+},{"./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 inherits = require('inherits')
-var Hash = require('./hash')
+function decode (buffer, maxLength, minimal) {
+ maxLength = maxLength || 4
+ minimal = minimal === undefined ? true : minimal
-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
-]
+ 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')
+ }
+ }
-var W = new Array(64)
+ // 40-bit
+ if (length === 5) {
+ var a = buffer.readUInt32LE(0)
+ var b = buffer.readUInt8(4)
-function Sha256 () {
- this.init()
+ if (b & 0x80) return -(((b & ~0x80) * 0x100000000) + a)
+ return (b * 0x100000000) + a
+ }
- this._w = W // new Array(64)
+ var result = 0
- Hash.call(this, 64, 56)
+ // 32-bit / 24-bit / 16-bit / 8-bit
+ for (var i = 0; i < length; ++i) {
+ result |= buffer[i] << (8 * i)
+ }
+
+ if (buffer[length - 1] & 0x80) return -(result & ~(0x80 << (8 * (length - 1))))
+ return result
+}
+
+function scriptNumSize (i) {
+ return i > 0x7fffffff ? 5
+ : i > 0x7fffff ? 4
+ : i > 0x7fff ? 3
+ : i > 0x7f ? 2
+ : i > 0x00 ? 1
+ : 0
}
-inherits(Sha256, Hash)
+function encode (number) {
+ var value = Math.abs(number)
+ var size = scriptNumSize(value)
+ var buffer = Buffer.allocUnsafe(size)
+ var negative = number < 0
-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
+ for (var i = 0; i < size; ++i) {
+ buffer.writeUInt8(value & 0xff, i)
+ value >>= 8
+ }
- return this
-}
+ if (buffer[size - 1] & 0x80) {
+ buffer.writeUInt8(negative ? 0x80 : 0x00, size - 1)
+ } else if (negative) {
+ buffer[size - 1] |= 0x80
+ }
-function S (X, n) {
- return (X >>> n) | (X << (32 - n))
+ return buffer
}
-function R (X, n) {
- return (X >>> n)
+module.exports = {
+ decode: decode,
+ encode: encode
}
-function Ch (x, y, z) {
- return ((x & y) ^ ((~x) & z))
+},{"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'
}
-function Maj (x, y, z) {
- return ((x & y) ^ (x & z) ^ (y & z))
+function classifyOutput (script) {
+ if (witnessPubKeyHash.output.check(script)) return types.P2WPKH
+ if (witnessScriptHash.output.check(script)) return types.P2WSH
+ if (pubKeyHash.output.check(script)) return types.P2PKH
+ if (scriptHash.output.check(script)) return types.P2SH
+
+ // XXX: optimization, below functions .decompile before use
+ var chunks = decompile(script)
+ if (multisig.output.check(chunks)) return types.MULTISIG
+ if (pubKey.output.check(chunks)) return types.P2PK
+ if (witnessCommitment.output.check(chunks)) return types.WITNESS_COMMITMENT
+ if (nullData.output.check(chunks)) return types.NULLDATA
+
+ return types.NONSTANDARD
}
-function Sigma0256 (x) {
- return (S(x, 2) ^ S(x, 13) ^ S(x, 22))
+function classifyInput (script, allowIncomplete) {
+ // XXX: optimization, below functions .decompile before use
+ var chunks = decompile(script)
+
+ if (pubKeyHash.input.check(chunks)) return types.P2PKH
+ if (scriptHash.input.check(chunks, allowIncomplete)) return types.P2SH
+ if (multisig.input.check(chunks, allowIncomplete)) return types.MULTISIG
+ if (pubKey.input.check(chunks)) return types.P2PK
+
+ return types.NONSTANDARD
}
-function Sigma1256 (x) {
- return (S(x, 6) ^ S(x, 11) ^ S(x, 25))
+function classifyWitness (script, allowIncomplete) {
+ // XXX: optimization, below functions .decompile before use
+ var chunks = decompile(script)
+
+ if (witnessPubKeyHash.input.check(chunks)) return types.P2WPKH
+ if (witnessScriptHash.input.check(chunks, allowIncomplete)) return types.P2WSH
+
+ return types.NONSTANDARD
}
-function Gamma0256 (x) {
- return (S(x, 7) ^ S(x, 18) ^ R(x, 3))
+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')
}
-function Gamma1256 (x) {
- return (S(x, 17) ^ S(x, 19) ^ R(x, 10))
+},{"./input":56,"./output":57}],56:[function(require,module,exports){
+// OP_0 [signatures ...]
+
+var Buffer = require('safe-buffer').Buffer
+var bscript = require('../../script')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+function partialSignature (value) {
+ return value === OPS.OP_0 || bscript.isCanonicalSignature(value)
}
-Sha256.prototype._update = function (M) {
- var W = this._w
+function check (script, allowIncomplete) {
+ var chunks = bscript.decompile(script)
+ if (chunks.length < 2) return false
+ if (chunks[0] !== OPS.OP_0) 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 f = this._f | 0
- var g = this._g | 0
- var h = this._h | 0
+ if (allowIncomplete) {
+ return chunks.slice(1).every(partialSignature)
+ }
- var j = 0
+ return chunks.slice(1).every(bscript.isCanonicalSignature)
+}
+check.toJSON = function () { return 'multisig input' }
- function calcW () { return Gamma1256(W[j - 2]) + W[j - 7] + Gamma0256(W[j - 15]) + W[j - 16] }
- function loop (w) {
- W[j] = w
+var EMPTY_BUFFER = Buffer.allocUnsafe(0)
- var T1 = h + Sigma1256(e) + Ch(e, f, g) + K[j] + w
- var T2 = Sigma0256(a) + Maj(a, b, c)
+function encodeStack (signatures, scriptPubKey) {
+ typeforce([partialSignature], signatures)
- h = g
- g = f
- f = e
- e = d + T1
- d = c
- c = b
- b = a
- a = T1 + T2
+ if (scriptPubKey) {
+ var scriptData = bscript.multisig.output.decode(scriptPubKey)
- j++
- }
+ if (signatures.length < scriptData.m) {
+ throw new TypeError('Not enough signatures provided')
+ }
- while (j < 16) loop(M.readInt32BE(j * 4))
- while (j < 64) loop(calcW())
+ if (signatures.length > scriptData.pubKeys.length) {
+ throw new TypeError('Too many signatures provided')
+ }
+ }
- 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
+ return [].concat(EMPTY_BUFFER, signatures)
}
-Sha256.prototype._hash = function () {
- var H = new Buffer(32)
+function encode (signatures, scriptPubKey) {
+ return bscript.compile(encodeStack(signatures, scriptPubKey))
+}
- 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)
+function decodeStack (stack, allowIncomplete) {
+ typeforce(check, stack, allowIncomplete)
+ return stack.slice(1)
+}
- return H
+function decode (buffer, allowIncomplete) {
+ var stack = bscript.decompile(buffer)
+ return decodeStack(stack, allowIncomplete)
}
-module.exports = Sha256
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
+}
-}).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')
+},{"../../script":52,"bitcoin-ops":40,"safe-buffer":98,"typeforce":109}],57:[function(require,module,exports){
+// m [pubKeys ...] n OP_CHECKMULTISIG
-var W = new Array(160)
+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
+ })
-function Sha384 () {
- this.init()
- this._w = W
+ var n = pubKeys.length
+ if (n < m) throw new TypeError('Not enough pubKeys provided')
- Hash.call(this, 128, 112)
+ return bscript.compile([].concat(
+ OP_INT_BASE + m,
+ pubKeys,
+ OP_INT_BASE + n,
+ OPS.OP_CHECKMULTISIG
+ ))
}
-inherits(Sha384, SHA512)
+function decode (buffer, allowIncomplete) {
+ var chunks = bscript.decompile(buffer)
+ typeforce(check, chunks, allowIncomplete)
-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
+ return {
+ m: chunks[0] - OP_INT_BASE,
+ pubKeys: chunks.slice(1, -2)
+ }
+}
- return this
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
}
-Sha384.prototype._hash = function () {
- var H = new Buffer(48)
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],58:[function(require,module,exports){
+// OP_RETURN {data}
- function writeInt64BE (h, l, offset) {
- H.writeInt32BE(h, offset)
- H.writeInt32BE(l, offset + 4)
- }
+var bscript = require('../script')
+var types = require('../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
- 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)
+function check (script) {
+ var buffer = bscript.compile(script)
- return H
+ return buffer.length > 1 &&
+ buffer[0] === OPS.OP_RETURN
}
+check.toJSON = function () { return 'null data output' }
-module.exports = Sha384
-
-}).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')
+function encode (data) {
+ typeforce(types.Buffer, data)
-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
-]
+ return bscript.compile([OPS.OP_RETURN, data])
+}
-var W = new Array(160)
+function decode (buffer) {
+ typeforce(check, buffer)
-function Sha512 () {
- this.init()
- this._w = W
+ return buffer.slice(2)
+}
- Hash.call(this, 128, 112)
+module.exports = {
+ output: {
+ check: check,
+ decode: decode,
+ encode: encode
+ }
}
-inherits(Sha512, Hash)
+},{"../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}
-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
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
- return this
+function check (script) {
+ var chunks = bscript.decompile(script)
+
+ return chunks.length === 1 &&
+ bscript.isCanonicalSignature(chunks[0])
}
+check.toJSON = function () { return 'pubKey input' }
-function S (X, Xl, n) {
- return (X >>> n) | (Xl << (32 - n))
+function encodeStack (signature) {
+ typeforce(types.Buffer, signature)
+ return [signature]
}
-function Ch (x, y, z) {
- return ((x & y) ^ ((~x) & z))
+function encode (signature) {
+ return bscript.compile(encodeStack(signature))
}
-function Maj (x, y, z) {
- return ((x & y) ^ (x & z) ^ (y & z))
+function decodeStack (stack) {
+ typeforce(check, stack)
+ return stack[0]
}
-Sha512.prototype._update = function (M) {
- var W = this._w
+function decode (buffer) {
+ var stack = bscript.decompile(buffer)
+ return decodeStack(stack)
+}
- 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,"../../types":78,"typeforce":109}],61:[function(require,module,exports){
+// {pubKey} OP_CHECKSIG
- 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 typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
- 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)
+function check (script) {
+ var chunks = bscript.decompile(script)
- // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
- var Wi7 = W[j - 7 * 2]
- var Wi7l = W[j - 7 * 2 + 1]
+ return chunks.length === 2 &&
+ bscript.isCanonicalPubKey(chunks[0]) &&
+ chunks[1] === OPS.OP_CHECKSIG
+}
+check.toJSON = function () { return 'pubKey output' }
- var Wi16 = W[j - 16 * 2]
- var Wi16l = W[j - 16 * 2 + 1]
+function encode (pubKey) {
+ typeforce(bscript.isCanonicalPubKey, pubKey)
- 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 bscript.compile([pubKey, OPS.OP_CHECKSIG])
+}
- function loop () {
- W[j] = Wi
- W[j + 1] = Wil
+function decode (buffer) {
+ var chunks = bscript.decompile(buffer)
+ typeforce(check, chunks)
- var maj = Maj(a, b, c)
- var majl = Maj(al, bl, cl)
+ return chunks[0]
+}
- 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)
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
- // t1 = h + sigma1 + ch + K[i] + W[i]
- var Ki = K[j]
- var Kil = K[j + 1]
+},{"../../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 ch = Ch(e, f, g)
- var chl = Ch(el, fl, gl)
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
- 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 check (script) {
+ var chunks = bscript.decompile(script)
- // t2 = sigma0 + maj
- var t2l = sigma0l + majl
- var t2 = sigma0h + maj + ((t2l >>> 0) < (sigma0l >>> 0) ? 1 : 0)
+ return chunks.length === 2 &&
+ bscript.isCanonicalSignature(chunks[0]) &&
+ bscript.isCanonicalPubKey(chunks[1])
+}
+check.toJSON = function () { return 'pubKeyHash input' }
- 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 encodeStack (signature, pubKey) {
+ typeforce({
+ signature: types.Buffer, pubKey: types.Buffer
+ }, {
+ signature: signature, pubKey: pubKey
+ })
- i++
- j += 2
- }
+ return [signature, pubKey]
+}
- while (i < 16) {
- Wi = M.readInt32BE(j * 4)
- Wil = M.readInt32BE(j * 4 + 4)
+function encode (signature, pubKey) {
+ return bscript.compile(encodeStack(signature, pubKey))
+}
- loop()
- }
+function decodeStack (stack) {
+ typeforce(check, stack)
- while (i < 80) {
- calcW()
- loop()
+ return {
+ signature: stack[0],
+ pubKey: stack[1]
}
+}
- 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
+function decode (buffer) {
+ var stack = bscript.decompile(buffer)
+ return decodeStack(stack)
+}
- 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
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
}
-Sha512.prototype._hash = function () {
- var H = new Buffer(64)
+},{"../../script":52,"../../types":78,"typeforce":109}],64:[function(require,module,exports){
+// OP_DUP OP_HASH160 {pubKeyHash} OP_EQUALVERIFY OP_CHECKSIG
- function writeInt64BE (h, l, offset) {
- H.writeInt32BE(h, offset)
- H.writeInt32BE(l, offset + 4)
- }
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
- 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 check (script) {
+ var buffer = bscript.compile(script)
- return H
+ 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' }
-module.exports = Sha512
+function encode (pubKeyHash) {
+ typeforce(types.Hash160bit, pubKeyHash)
-}).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')
+ return bscript.compile([
+ OPS.OP_DUP,
+ OPS.OP_HASH160,
+ pubKeyHash,
+ OPS.OP_EQUALVERIFY,
+ OPS.OP_CHECKSIG
+ ])
+}
-var Transform = require('stream').Transform
+function decode (buffer) {
+ typeforce(check, buffer)
-var ZEROS = new Buffer(128)
-ZEROS.fill(0)
+ return buffer.slice(3, 23)
+}
-function Hmac(alg, key) {
- Transform.call(this)
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
- if (typeof key === 'string') {
- key = new Buffer(key)
- }
+},{"../../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 blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64
+var Buffer = require('safe-buffer').Buffer
+var bscript = require('../../script')
+var typeforce = require('typeforce')
- this._alg = alg
- this._key = key
+function check (script, allowIncomplete) {
+ var chunks = bscript.decompile(script)
+ if (chunks.length < 1) return false
- if (key.length > blocksize) {
- key = createHash(alg).update(key).digest()
+ var lastChunk = chunks[chunks.length - 1]
+ if (!Buffer.isBuffer(lastChunk)) return false
- } else if (key.length < blocksize) {
- key = Buffer.concat([key, ZEROS], blocksize)
- }
+ var scriptSigChunks = bscript.decompile(bscript.compile(chunks.slice(0, -1)))
+ var redeemScriptChunks = bscript.decompile(lastChunk)
- var ipad = this._ipad = new Buffer(blocksize)
- var opad = this._opad = new Buffer(blocksize)
+ // is redeemScript a valid script?
+ if (redeemScriptChunks.length === 0) return false
- for (var i = 0; i < blocksize; i++) {
- ipad[i] = key[i] ^ 0x36
- opad[i] = key[i] ^ 0x5C
+ // 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' }
- this._hash = createHash(alg).update(ipad)
+function encodeStack (redeemScriptStack, redeemScript) {
+ var serializedScriptPubKey = bscript.compile(redeemScript)
+
+ return [].concat(redeemScriptStack, serializedScriptPubKey)
}
-inherits(Hmac, Transform)
+function encode (redeemScriptSig, redeemScript) {
+ var redeemScriptStack = bscript.decompile(redeemScriptSig)
+
+ return bscript.compile(encodeStack(redeemScriptStack, redeemScript))
+}
-Hmac.prototype.update = function (data, enc) {
- this._hash.update(data, enc)
+function decodeStack (stack) {
+ typeforce(check, stack)
- return this
+ return {
+ redeemScriptStack: stack.slice(0, -1),
+ redeemScript: stack[stack.length - 1]
+ }
}
-Hmac.prototype._transform = function (data, _, next) {
- this._hash.update(data)
+function decode (buffer) {
+ var stack = bscript.decompile(buffer)
+ var result = decodeStack(stack)
+ result.redeemScriptSig = bscript.compile(result.redeemScriptStack)
+ delete result.redeemScriptStack
+ return result
+}
- next()
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
}
-Hmac.prototype._flush = function (next) {
- this.push(this.digest())
+},{"../../script":52,"safe-buffer":98,"typeforce":109}],67:[function(require,module,exports){
+// OP_HASH160 {scriptHash} OP_EQUAL
+
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
- next()
+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' }
-Hmac.prototype.digest = function (enc) {
- var h = this._hash.digest()
+function encode (scriptHash) {
+ typeforce(types.Hash160bit, scriptHash)
- return createHash(this._alg).update(this._opad).update(h).digest(enc)
+ return bscript.compile([OPS.OP_HASH160, scriptHash, OPS.OP_EQUAL])
}
-module.exports = function createHmac(alg, key) {
- return new Hmac(alg, key)
+function decode (buffer) {
+ typeforce(check, buffer)
+
+ return buffer.slice(2, 22)
}
-}).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')
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
-var Point = require('./point')
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],68:[function(require,module,exports){
+module.exports = {
+ output: require('./output')
+}
-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
+},{"./output":69}],69:[function(require,module,exports){
+// OP_RETURN {aa21a9ed} {commitment}
- this.infinity = new Point(this, null, null, BigInteger.ZERO)
+var Buffer = require('safe-buffer').Buffer
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
- // result caching
- this.pOverFour = p.add(BigInteger.ONE).shiftRight(2)
+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)
}
-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
+check.toJSON = function () { return 'Witness commitment output' }
- var y = beta
- if (beta.isEven() ^ !isOdd) {
- y = this.p.subtract(y) // -y % p
- }
+function encode (commitment) {
+ typeforce(types.Hash256bit, commitment)
- return Point.fromAffine(this, x, y)
+ var buffer = Buffer.allocUnsafe(36)
+ HEADER.copy(buffer, 0)
+ commitment.copy(buffer, 4)
+
+ return bscript.compile([OPS.OP_RETURN, buffer])
}
-Curve.prototype.isInfinity = function(Q) {
- if (Q === this.infinity) return true
+function decode (buffer) {
+ typeforce(check, buffer)
- return Q.z.signum() === 0 && Q.y.signum() !== 0
+ return bscript.decompile(buffer)[1].slice(4, 36)
}
-Curve.prototype.isOnCurve = function(Q) {
- if (this.isInfinity(Q)) return true
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
- var x = Q.affineX
- var y = Q.affineY
- var a = this.a
- var b = this.b
- var p = this.p
+},{"../../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}
- // 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
+var pkh = require('../pubkeyhash/input')
- // 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: pkh.check,
+ decodeStack: pkh.decodeStack,
+ encodeStack: pkh.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')
+},{"../pubkeyhash/input":63}],72:[function(require,module,exports){
+// OP_0 {pubKeyHash}
- // 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 === 22 &&
+ buffer[0] === OPS.OP_0 &&
+ buffer[1] === 0x14
}
+check.toJSON = function () { return 'Witness pubKeyHash output' }
-module.exports = Curve
+function encode (pubKeyHash) {
+ typeforce(types.Hash160bit, pubKeyHash)
-},{"./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_0, pubKeyHash])
}
-},{}],49:[function(require,module,exports){
-var Point = require('./point')
-var Curve = require('./curve')
+function decode (buffer) {
+ typeforce(check, buffer)
-var getCurveByName = require('./names')
+ return buffer.slice(2)
+}
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,"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 curves = require('./curves')
-var Curve = require('./curve')
+var p2sh = require('../scripthash/input')
-function getCurveByName(name) {
- var curve = curves[name]
- if (!curve) return null
+module.exports = {
+ check: p2sh.check,
+ decodeStack: p2sh.decodeStack,
+ encodeStack: p2sh.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)
+},{"../scripthash/input":66}],75:[function(require,module,exports){
+// OP_0 {scriptHash}
- 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 === 34 &&
+ buffer[0] === OPS.OP_0 &&
+ buffer[1] === 0x20
}
+check.toJSON = function () { return 'Witness scriptHash output' }
-module.exports = getCurveByName
+function encode (scriptHash) {
+ typeforce(types.Hash256bit, scriptHash)
-},{"./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, scriptHash])
+}
-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
+}
+
+},{"../../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')
+
+function varSliceSize (someScript) {
+ var length = someScript.length
+
+ return varuint.encodingLength(length) + length
+}
+
+function vectorSize (someVector) {
+ var length = someVector.length
+
+ return varuint.encodingLength(length) + someVector.reduce(function (sum, witness) {
+ return sum + varSliceSize(witness)
+ }, 0)
+}
+
+function Transaction () {
+ this.version = 1
+ this.locktime = 0
+ this.ins = []
+ this.outs = []
+}
+
+Transaction.DEFAULT_SEQUENCE = 0xffffffff
+Transaction.SIGHASH_ALL = 0x01
+Transaction.SIGHASH_NONE = 0x02
+Transaction.SIGHASH_SINGLE = 0x03
+Transaction.SIGHASH_ANYONECANPAY = 0x80
+Transaction.ADVANCED_TRANSACTION_MARKER = 0x00
+Transaction.ADVANCED_TRANSACTION_FLAG = 0x01
- this.compressed = true
+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
}
-Object.defineProperty(Point.prototype, 'zInv', {
- get: function() {
- if (this._zInv === null) {
- this._zInv = this.z.modInverse(this.curve.p)
- }
-
- return this._zInv
+Transaction.fromBuffer = function (buffer, __noStrict) {
+ var offset = 0
+ function readSlice (n) {
+ offset += n
+ return buffer.slice(offset - n, offset)
}
-})
-Object.defineProperty(Point.prototype, 'affineX', {
- get: function() {
- return this.x.multiply(this.zInv).mod(this.curve.p)
+ function readUInt32 () {
+ var i = buffer.readUInt32LE(offset)
+ offset += 4
+ return i
}
-})
-Object.defineProperty(Point.prototype, 'affineY', {
- get: function() {
- return this.y.multiply(this.zInv).mod(this.curve.p)
+ function readInt32 () {
+ var i = buffer.readInt32LE(offset)
+ offset += 4
+ return i
}
-})
-Point.fromAffine = function(curve, x, y) {
- return new Point(curve, x, y, BigInteger.ONE)
-}
-
-Point.prototype.equals = function(other) {
- if (other === this) return true
- if (this.curve.isInfinity(this)) return this.curve.isInfinity(other)
- if (this.curve.isInfinity(other)) return this.curve.isInfinity(this)
-
- // u = Y2 * Z1 - Y1 * Z2
- var u = other.y.multiply(this.z).subtract(this.y.multiply(other.z)).mod(this.curve.p)
+ function readUInt64 () {
+ var i = bufferutils.readUInt64LE(buffer, offset)
+ offset += 8
+ return i
+ }
- if (u.signum() !== 0) return false
+ function readVarInt () {
+ var vi = varuint.decode(buffer, offset)
+ offset += varuint.decode.bytes
+ return vi
+ }
- // v = X2 * Z1 - X1 * Z2
- var v = other.x.multiply(this.z).subtract(this.x.multiply(other.z)).mod(this.curve.p)
+ function readVarSlice () {
+ return readSlice(readVarInt())
+ }
- return v.signum() === 0
-}
+ function readVector () {
+ var count = readVarInt()
+ var vector = []
+ for (var i = 0; i < count; i++) vector.push(readVarSlice())
+ return vector
+ }
-Point.prototype.negate = function() {
- var y = this.curve.p.subtract(this.y)
+ var tx = new Transaction()
+ tx.version = readInt32()
- return new Point(this.curve, this.x, y, this.z)
-}
+ var marker = buffer.readUInt8(offset)
+ var flag = buffer.readUInt8(offset + 1)
-Point.prototype.add = function(b) {
- if (this.curve.isInfinity(this)) return b
- if (this.curve.isInfinity(b)) return this
+ var hasWitnesses = false
+ if (marker === Transaction.ADVANCED_TRANSACTION_MARKER &&
+ flag === Transaction.ADVANCED_TRANSACTION_FLAG) {
+ offset += 2
+ hasWitnesses = true
+ }
- var x1 = this.x
- var y1 = this.y
- var x2 = b.x
- var y2 = b.y
+ 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
+ })
+ }
- // 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 voutLen = readVarInt()
+ for (i = 0; i < voutLen; ++i) {
+ tx.outs.push({
+ value: readUInt64(),
+ script: readVarSlice()
+ })
+ }
- if (v.signum() === 0) {
- if (u.signum() === 0) {
- return this.twice() // this == b, so double
+ 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
+ }
+ })
-// Compute this*j + x*k (simultaneous multiplication)
-Point.prototype.multiplyTwo = function(j, x, k) {
- var i
+ return newTx
+}
- if (j.bitLength() > k.bitLength())
- i = j.bitLength() - 1
- else
- i = k.bitLength() - 1
+/**
+ * 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)
- var R = this.curve.infinity
- var both = this.add(x)
+ // https://github.com/bitcoin/bitcoin/blob/master/src/test/sighash_tests.cpp#L29
+ if (inIndex >= this.ins.length) return ONE
- while (i >= 0) {
- R = R.twice()
+ // ignore OP_CODESEPARATOR
+ var ourScript = bscript.compile(bscript.decompile(prevOutScript).filter(function (x) {
+ return x !== opcodes.OP_CODESEPARATOR
+ }))
- var jBit = j.testBit(i)
- var kBit = k.testBit(i)
+ var txTmp = this.clone()
- if (jBit) {
- if (kBit) {
- R = R.add(both)
+ // SIGHASH_NONE: ignore all outputs? (wildcard payee)
+ if ((hashType & 0x1f) === Transaction.SIGHASH_NONE) {
+ txTmp.outs = []
- } else {
- R = R.add(this)
- }
+ // ignore sequence numbers (except at inIndex)
+ txTmp.ins.forEach(function (input, i) {
+ if (i === inIndex) return
- } else {
- if (kBit) {
- R = R.add(x)
- }
- }
- --i
- }
+ input.sequence = 0
+ })
- return R
-}
+ // 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
-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'
+ // truncate outputs after
+ txTmp.outs.length = inIndex + 1
- var x = this.affineX
- var y = this.affineY
+ // "blank" outputs before
+ for (var i = 0; i < inIndex; i++) {
+ txTmp.outs[i] = BLANK_OUTPUT
+ }
- var buffer
+ // ignore sequence numbers (except at inIndex)
+ txTmp.ins.forEach(function (input, y) {
+ if (y === inIndex) return
- // Determine size of q in bytes
- var byteLength = Math.floor((this.curve.p.bitLength() + 7) / 8)
+ input.sequence = 0
+ })
+ }
- // 0x02/0x03 | X
- if (compressed) {
- buffer = new Buffer(1 + byteLength)
- buffer.writeUInt8(y.isEven() ? 0x02 : 0x03, 0)
+ // SIGHASH_ANYONECANPAY: ignore inputs entirely?
+ if (hashType & Transaction.SIGHASH_ANYONECANPAY) {
+ txTmp.ins = [txTmp.ins[inIndex]]
+ txTmp.ins[0].script = ourScript
- // 0x04 | X | Y
+ // SIGHASH_ALL: only ignore input scripts
} else {
- buffer = new Buffer(1 + byteLength + byteLength)
- buffer.writeUInt8(0x04, 0)
-
- y.toBuffer(byteLength).copy(buffer, 1 + byteLength)
+ // "blank" others input scripts
+ txTmp.ins.forEach(function (input) { input.script = EMPTY_SCRIPT })
+ txTmp.ins[inIndex].script = ourScript
}
- x.toBuffer(byteLength).copy(buffer, 1)
+ // serialize and hash
+ var buffer = Buffer.allocUnsafe(txTmp.__byteLength(false) + 4)
+ buffer.writeInt32LE(hashType, buffer.length - 4)
+ txTmp.__toBuffer(buffer, 0, false)
- return buffer
+ return bcrypto.hash256(buffer)
}
-Point.decodeFrom = function(curve, buffer) {
- var type = buffer.readUInt8(0)
- var compressed = (type !== 4)
+Transaction.prototype.hashForWitnessV0 = function (inIndex, prevOutScript, value, hashType) {
+ typeforce(types.tuple(types.UInt32, types.Buffer, types.Satoshi, types.UInt32), arguments)
- var byteLength = Math.floor((curve.p.bitLength() + 7) / 8)
- var x = BigInteger.fromBuffer(buffer.slice(1, 1 + byteLength))
+ var tbuffer, toffset
+ function writeSlice (slice) { toffset += slice.copy(tbuffer, toffset) }
+ function writeUInt32 (i) { toffset = tbuffer.writeUInt32LE(i, toffset) }
+ function writeUInt64 (i) { toffset = bufferutils.writeUInt64LE(tbuffer, i, toffset) }
+ function writeVarInt (i) {
+ varuint.encode(i, tbuffer, toffset)
+ toffset += varuint.encode.bytes
+ }
+ function writeVarSlice (slice) { writeVarInt(slice.length); writeSlice(slice) }
- var Q
- if (compressed) {
- assert.equal(buffer.length, byteLength + 1, 'Invalid sequence length')
- assert(type === 0x02 || type === 0x03, 'Invalid sequence tag')
+ var hashOutputs = ZERO
+ var hashPrevouts = ZERO
+ var hashSequence = ZERO
- var isOdd = (type === 0x03)
- Q = curve.pointFromX(isOdd, x)
+ if (!(hashType & Transaction.SIGHASH_ANYONECANPAY)) {
+ tbuffer = Buffer.allocUnsafe(36 * this.ins.length)
+ toffset = 0
- } else {
- assert.equal(buffer.length, 1 + byteLength + byteLength, 'Invalid sequence length')
+ this.ins.forEach(function (txIn) {
+ writeSlice(txIn.hash)
+ writeUInt32(txIn.index)
+ })
- var y = BigInteger.fromBuffer(buffer.slice(1 + byteLength))
- Q = Point.fromAffine(curve, x, y)
+ hashPrevouts = bcrypto.hash256(tbuffer)
}
- Q.compressed = compressed
- return Q
-}
+ if (!(hashType & Transaction.SIGHASH_ANYONECANPAY) &&
+ (hashType & 0x1f) !== Transaction.SIGHASH_SINGLE &&
+ (hashType & 0x1f) !== Transaction.SIGHASH_NONE) {
+ tbuffer = Buffer.allocUnsafe(4 * this.ins.length)
+ toffset = 0
-Point.prototype.toString = function () {
- if (this.curve.isInfinity(this)) return '(INFINITY)'
+ this.ins.forEach(function (txIn) {
+ writeUInt32(txIn.sequence)
+ })
- return '(' + this.affineX.toString() + ',' + this.affineY.toString() + ')'
-}
+ hashSequence = bcrypto.hash256(tbuffer)
+ }
-module.exports = Point
+ 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)
-}).call(this,require("buffer").Buffer)
-},{"assert":5,"bigi":3,"buffer":7}],52:[function(require,module,exports){
-(function (process,global,Buffer){
-'use strict';
+ tbuffer = Buffer.allocUnsafe(txOutsSize)
+ toffset = 0
-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
- */
+ this.outs.forEach(function (out) {
+ writeUInt64(out.value)
+ writeVarSlice(out.script)
+ })
- crypto.getRandomValues(bytes);
- if (typeof cb === 'function') {
- return process.nextTick(function () {
- cb(null, bytes);
- });
+ hashOutputs = bcrypto.hash256(tbuffer)
+ } else if ((hashType & 0x1f) === Transaction.SIGHASH_SINGLE && inIndex < this.outs.length) {
+ var output = this.outs[inIndex]
+
+ tbuffer = Buffer.allocUnsafe(8 + varSliceSize(output.script))
+ toffset = 0
+ writeUInt64(output.value)
+ writeVarSlice(output.script)
+
+ hashOutputs = bcrypto.hash256(tbuffer)
}
- 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';
+ tbuffer = Buffer.allocUnsafe(156 + varSliceSize(prevOutScript))
+ toffset = 0
-function getFunctionName(fn) {
- return fn.name || fn.toString().match(/function (.*?)\s*\(/)[1];
+ 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)
}
-function getTypeTypeName(type) {
- if (nativeTypes.Function(type)) {
- type = type.toJSON ? type.toJSON() : getFunctionName(type);
- }
- if (nativeTypes.Object(type)) return JSON.stringify(type);
-
- return type;
+Transaction.prototype.getHash = function () {
+ return bcrypto.hash256(this.__toBuffer(undefined, undefined, false))
}
-function getValueTypeName(value) {
- if (nativeTypes.Null(value)) return '';
+Transaction.prototype.getId = function () {
+ // transaction hash's are displayed in reverse order
+ return this.getHash().reverse().toString('hex')
+}
- return getFunctionName(value.constructor);
+Transaction.prototype.toBuffer = function (buffer, initialOffset) {
+ return this.__toBuffer(buffer, initialOffset, true)
}
-function tfErrorString(type, value) {
- var typeTypeName = getTypeTypeName(type);
- var valueTypeName = getValueTypeName(value);
+Transaction.prototype.__toBuffer = function (buffer, initialOffset, __allowWitness) {
+ if (!buffer) buffer = Buffer.allocUnsafe(this.__byteLength(__allowWitness))
- return 'Expected ' + typeTypeName + ', got ' + (valueTypeName && valueTypeName + ' ') + JSON.stringify(value);
-}
+ 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) }
-function tfPropertyErrorString(type, name, value) {
- return tfErrorString('property \"' + name + '\" of type ' + getTypeTypeName(type), value);
-}
+ writeInt32(this.version)
-var nativeTypes = {
- Array: (function (_Array) {
- function Array(_x) {
- return _Array.apply(this, arguments);
- }
+ var hasWitnesses = __allowWitness && this.hasWitnesses()
- Array.toString = function () {
- return _Array.toString();
- };
+ if (hasWitnesses) {
+ writeUInt8(Transaction.ADVANCED_TRANSACTION_MARKER)
+ writeUInt8(Transaction.ADVANCED_TRANSACTION_FLAG)
+ }
- 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);
+ writeVarInt(this.ins.length)
+
+ this.ins.forEach(function (txIn) {
+ writeSlice(txIn.hash)
+ writeUInt32(txIn.index)
+ writeVarSlice(txIn.script)
+ writeUInt32(txIn.sequence)
+ })
+
+ writeVarInt(this.outs.length)
+ this.outs.forEach(function (txOut) {
+ if (!txOut.valueBuffer) {
+ writeUInt64(txOut.value)
+ } else {
+ writeSlice(txOut.valueBuffer)
}
- Buffer.toString = function () {
- return _Buffer.toString();
- };
+ writeVarSlice(txOut.script)
+ })
- 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;
+ if (hasWitnesses) {
+ this.ins.forEach(function (input) {
+ writeVector(input.witness)
+ })
}
-};
-function tJSON(type) {
- return type && type.toJSON ? type.toJSON() : type;
+ writeUInt32(this.locktime)
+
+ // avoid slicing unless necessary
+ if (initialOffset !== undefined) return buffer.slice(initialOffset, offset)
+ return buffer
}
-function sJSON(type) {
- var json = tJSON(type);
- return nativeTypes.Object(json) ? JSON.stringify(json) : json;
+Transaction.prototype.toHex = function () {
+ return this.toBuffer().toString('hex')
}
-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)];
- };
+Transaction.prototype.setInputScript = function (index, scriptSig) {
+ typeforce(types.tuple(types.Number, types.Buffer), arguments)
- return arrayOf;
- },
+ this.ins[index].script = scriptSig
+}
- maybe: function maybe(type) {
- function maybe(value, strict) {
- return nativeTypes.Null(value) || typeforce(type, value, strict);
- }
- maybe.toJSON = function () {
- return '?' + sJSON(type);
- };
+Transaction.prototype.setWitness = function (index, witness) {
+ typeforce(types.tuple(types.Number, [types.Buffer]), arguments)
- return maybe;
- },
+ this.ins[index].witness = witness
+}
+
+module.exports = Transaction
- object: function object(type) {
- function object(value, strict) {
- typeforce(nativeTypes.Object, value, strict);
+},{"./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')
- var propertyName, propertyType, propertyValue;
+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
- try {
- for (propertyName in type) {
- propertyType = type[propertyName];
- propertyValue = value[propertyName];
+ case scriptTypes.P2PK:
+ pubKeys[0] = script ? bscript.pubKey.output.decode(script) : undefined
+ signatures = chunks.slice(0, 1)
+ break
- typeforce(propertyType, propertyValue, strict);
- }
- } catch (e) {
- throw new TypeError(tfPropertyErrorString(propertyType, propertyName, propertyValue));
+ case scriptTypes.MULTISIG:
+ if (script) {
+ var multisig = bscript.multisig.output.decode(script)
+ pubKeys = multisig.pubKeys
}
- if (strict) {
- for (propertyName in value) {
- if (type[propertyName]) continue;
+ signatures = chunks.slice(1).map(function (chunk) {
+ return chunk.length === 0 ? undefined : chunk
+ })
+ break
+ }
- throw new TypeError('Unexpected property "' + propertyName + '"');
- }
- }
+ return {
+ pubKeys: pubKeys,
+ signatures: signatures
+ }
+}
+function expandInput (scriptSig, witnessStack) {
+ if (scriptSig.length === 0 && witnessStack.length === 0) return {}
- return true;
+ 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')
+ }
}
- object.toJSON = function () {
- return type;
- };
- return object;
- },
-
- oneOf: function oneOf() {
- for (var _len = arguments.length, types = Array(_len), _key = 0; _key < _len; _key++) {
- types[_key] = arguments[_key];
+ 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')
+ }
}
- function oneOf(value, strict) {
- return types.some(function (type) {
- try {
- return typeforce(type, value, strict);
- } catch (e) {
- return false;
- }
- });
+ scriptType = scriptTypes.P2PKH
+ chunks = witnessStack
+ } else if (redeemScript) {
+ if (P2SH.indexOf(redeemScriptType) === -1) {
+ throw new Error('Bad redeemscript!')
}
- oneOf.toJSON = function () {
- return types.map(sJSON).join('|');
- };
- return oneOf;
- },
+ script = redeemScript
+ scriptType = redeemScriptType
+ chunks = scriptSigChunks.slice(0, -1)
+ } else {
+ prevOutType = scriptType = bscript.classifyInput(scriptSig)
+ chunks = scriptSigChunks
+ }
- quacksLike: function quacksLike(type) {
- function quacksLike(value, strict) {
- return type === getValueTypeName(value);
- }
- quacksLike.toJSON = function () {
- return type;
- };
+ var expanded = extractChunks(scriptType, chunks, script)
- return quacksLike;
- },
+ var result = {
+ pubKeys: expanded.pubKeys,
+ signatures: expanded.signatures,
+ prevOutScript: prevOutScript,
+ prevOutType: prevOutType,
+ signType: scriptType,
+ signScript: script,
+ witness: Boolean(witness)
+ }
- tuple: function tuple() {
- for (var _len2 = arguments.length, types = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
- types[_key2] = arguments[_key2];
- }
+ if (p2sh) {
+ result.redeemScript = redeemScript
+ result.redeemScriptType = redeemScriptType
+ }
- function tuple(value, strict) {
- return types.every(function (type, i) {
- return typeforce(type, value[i], strict);
- });
- }
- tuple.toJSON = function () {
- return '(' + types.map(sJSON).join(', ') + ')';
- };
+ if (p2wsh) {
+ result.witnessScript = witnessScript
+ result.witnessScriptType = witnessScriptType
+ }
- return tuple;
- },
+ return result
+}
- value: function value(expected) {
- function value(actual) {
- return actual === expected;
- }
- value.toJSON = function () {
- return expected;
- };
+// 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 value;
- }
-};
+ var unmatched = input.signatures.concat()
-function compile(type) {
- if (nativeTypes.String(type)) {
- if (type[0] === '?') return otherTypes.maybe(compile(type.slice(1)));
+ input.signatures = input.pubKeys.map(function (pubKey) {
+ var keyPair = ECPair.fromPublicKeyBuffer(pubKey)
+ var match
- return nativeTypes[type] || otherTypes.quacksLike(type);
- } else if (type && nativeTypes.Object(type)) {
- if (nativeTypes.Array(type)) return otherTypes.arrayOf(compile(type[0]));
+ // check for a signature
+ unmatched.some(function (signature, i) {
+ // skip if undefined || OP_0
+ if (!signature) return false
- var compiled = {};
+ // TODO: avoid O(n) hashForSignature
+ var parsed = ECSignature.parseScriptSignature(signature)
+ var hash = transaction.hashForSignature(vin, input.redeemScript, parsed.hashType)
- for (var propertyName in type) {
- compiled[propertyName] = compile(type[propertyName]);
- }
+ // skip if signature does not match pubKey
+ if (!keyPair.verify(hash, parsed.signature)) return false
- return otherTypes.object(compiled);
- } else if (nativeTypes.Function(type)) {
- return type;
- }
+ // remove matched signature from unmatched
+ unmatched[i] = undefined
+ match = signature
+
+ return true
+ })
- return otherTypes.value(type);
+ return match
+ })
}
-function typeforce(_x3, _x4, _x5) {
- var _again = true;
+function expandOutput (script, scriptType, ourPubKey) {
+ typeforce(types.Buffer, script)
- _function: while (_again) {
- var type = _x3,
- value = _x4,
- strict = _x5;
- _again = false;
+ var scriptChunks = bscript.decompile(script)
+ if (!scriptType) {
+ scriptType = bscript.classifyOutput(script)
+ }
- if (nativeTypes.Function(type)) {
- if (type(value, strict)) return true;
+ var pubKeys = []
- throw new TypeError(tfErrorString(type, value));
- }
+ switch (scriptType) {
+ // does our hash160(pubKey) match the output scripts?
+ case scriptTypes.P2PKH:
+ if (!ourPubKey) break
- // JIT
- _x3 = compile(type);
- _x4 = value;
- _x5 = strict;
- _again = true;
- continue _function;
- }
-}
+ var pkh1 = scriptChunks[2]
+ var pkh2 = bcrypto.hash160(ourPubKey)
+ if (pkh1.equals(pkh2)) pubKeys = [ourPubKey]
+ break
-// assign all types to typeforce function
-var typeName;
-Object.keys(nativeTypes).forEach(function (typeName) {
- var nativeType = nativeTypes[typeName];
- nativeType.toJSON = function () {
- return typeName;
- };
+ // does our hash160(pubKey) match the output scripts?
+ case scriptTypes.P2WPKH:
+ if (!ourPubKey) break
- typeforce[typeName] = nativeType;
-});
+ var wpkh1 = scriptChunks[1]
+ var wpkh2 = bcrypto.hash160(ourPubKey)
+ if (wpkh1.equals(wpkh2)) pubKeys = [ourPubKey]
+ break
-for (typeName in otherTypes) {
- typeforce[typeName] = otherTypes[typeName];
-}
+ case scriptTypes.P2PK:
+ pubKeys = scriptChunks.slice(0, 1)
+ break
-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')
+ case scriptTypes.MULTISIG:
+ pubKeys = scriptChunks.slice(1, -2)
+ break
-function findScriptTypeByVersion (version) {
- for (var networkName in networks) {
- var network = networks[networkName]
+ default: return { scriptType: scriptType }
+ }
- if (version === network.pubKeyHash) return 'pubkeyhash'
- if (version === network.scriptHash) return 'scripthash'
+ return {
+ pubKeys: pubKeys,
+ scriptType: scriptType,
+ signatures: pubKeys.map(function () { return undefined })
}
}
-function Address (hash, version) {
- typeForce('Buffer', hash)
-
- assert.strictEqual(hash.length, 20, 'Invalid hash length')
- assert.strictEqual(version & 0xff, version, 'Invalid version byte')
+function checkP2shInput (input, redeemScriptHash) {
+ if (input.prevOutType) {
+ if (input.prevOutType !== scriptTypes.P2SH) throw new Error('PrevOutScript must be P2SH')
- this.hash = hash
- this.version = version
+ var prevOutScriptScriptHash = bscript.decompile(input.prevOutScript)[1]
+ if (!prevOutScriptScriptHash.equals(redeemScriptHash)) throw new Error('Inconsistent hash160(RedeemScript)')
+ }
}
-Address.fromBase58Check = function (string) {
- var payload = base58check.decode(string)
- var version = payload.readUInt8(0)
- var hash = payload.slice(1)
+function checkP2WSHInput (input, witnessScriptHash) {
+ if (input.prevOutType) {
+ if (input.prevOutType !== scriptTypes.P2WSH) throw new Error('PrevOutScript must be P2WSH')
- return new Address(hash, version)
+ var scriptHash = bscript.decompile(input.prevOutScript)[1]
+ if (!scriptHash.equals(witnessScriptHash)) throw new Error('Inconsistent sha25(WitnessScript)')
+ }
}
-Address.fromOutputScript = function (script, network) {
- network = network || networks.bitcoin
-
- if (scripts.isPubKeyHashOutput(script)) return new Address(script.chunks[2], network.pubKeyHash)
- if (scripts.isScriptHashOutput(script)) return new Address(script.chunks[1], network.scriptHash)
+function prepareInput (input, kpPubKey, redeemScript, witnessValue, witnessScript) {
+ var expanded
+ var prevOutType
+ var prevOutScript
- assert(false, script.toASM() + ' has no matching Address')
-}
+ 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
+ }
-Address.prototype.toBase58Check = function () {
- var payload = new Buffer(21)
- payload.writeUInt8(this.version, 0)
- this.hash.copy(payload, 1)
+ if (witness && !types.Satoshi(witnessValue)) {
+ throw new Error('Input was witness but not given witness value')
+ }
- return base58check.encode(payload)
-}
+ if (signType === scriptTypes.P2WPKH) {
+ signScript = bscript.pubKeyHash.output.encode(bscript.witnessPubKeyHash.output.decode(signScript))
+ }
-Address.prototype.toOutputScript = function () {
- var scriptType = findScriptTypeByVersion(this.version)
+ if (p2sh) {
+ input.redeemScript = redeemScript
+ input.redeemScriptType = p2shType
+ }
- if (scriptType === 'pubkeyhash') return scripts.pubKeyHashOutput(this.hash)
- if (scriptType === 'scripthash') return scripts.scriptHashOutput(this.hash)
+ if (p2wsh) {
+ input.witnessScript = witnessScript
+ input.witnessScriptType = witnessType
+ }
- assert(false, this.toString() + ' has no matching Script')
+ input.pubKeys = expanded.pubKeys
+ input.signatures = expanded.signatures
+ input.signScript = signScript
+ input.signType = signType
+ input.prevOutScript = prevOutScript
+ input.prevOutType = prevOutType
+ input.witness = witness
}
-Address.prototype.toString = Address.prototype.toBase58Check
-
-module.exports = Address
+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 })
+ }
-}).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')
+ return bscript.multisig.input.encodeStack(signatures /* see if it's necessary first */)
+ }
+ } else {
+ throw new Error('Not yet supported')
+ }
-function decode () {
- console.warn('bs58check will be removed in 2.0.0. require("bs58check") instead.')
+ if (!allowIncomplete) throw new Error('Not enough signatures provided')
- return bs58check.decode.apply(undefined, arguments)
+ return []
}
-function encode () {
- console.warn('bs58check will be removed in 2.0.0. require("bs58check") instead.')
+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)
+ }
- return bs58check.encode.apply(undefined, arguments)
-}
+ 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
+ }
-module.exports = {
- decode: decode,
- encode: encode
+ 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()
+ }
+
+ scriptType = input.witnessScriptType
+ }
+
+ // append redeemScript if necessary
+ if (p2sh) {
+ sig.push(input.redeemScript)
+ }
+
+ return {
+ type: scriptType,
+ script: bscript.compile(sig),
+ witness: witness
+ }
}
-},{"bs58check":31}],56:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var bufferutils = require('./bufferutils')
-var crypto = require('./crypto')
+function TransactionBuilder (network, maximumFeeRate) {
+ this.prevTxMap = {}
+ this.network = network || networks.bitcoin
-var Transaction = require('./transaction')
+ // WARNING: This is __NOT__ to be relied on, its just another potential safety mechanism (safety in-depth)
+ this.maximumFeeRate = maximumFeeRate || 1000
-function Block () {
- this.version = 1
- this.prevHash = null
- this.merkleRoot = null
- this.timestamp = 0
- this.bits = 0
- this.nonce = 0
+ this.inputs = []
+ this.tx = new Transaction()
}
-Block.fromBuffer = function (buffer) {
- assert(buffer.length >= 80, 'Buffer too small (< 80 bytes)')
+TransactionBuilder.prototype.setLockTime = function (locktime) {
+ typeforce(types.UInt32, locktime)
- var offset = 0
- function readSlice (n) {
- offset += n
- return buffer.slice(offset - n, offset)
- }
+ // if any signatures exist, throw
+ if (this.inputs.some(function (input) {
+ if (!input.signatures) return false
- function readUInt32 () {
- var i = buffer.readUInt32LE(offset)
- offset += 4
- return i
+ return input.signatures.some(function (s) { return s })
+ })) {
+ throw new Error('No, this would invalidate signatures')
}
- var block = new Block()
- block.version = readUInt32()
- block.prevHash = readSlice(32)
- block.merkleRoot = readSlice(32)
- block.timestamp = readUInt32()
- block.bits = readUInt32()
- block.nonce = readUInt32()
+ this.tx.locktime = locktime
+}
- if (buffer.length === 80) return block
+TransactionBuilder.prototype.setVersion = function (version) {
+ typeforce(types.UInt32, version)
- function readVarInt () {
- var vi = bufferutils.readVarInt(buffer, offset)
- offset += vi.size
- return vi.number
- }
+ // XXX: this might eventually become more complex depending on what the versions represent
+ this.tx.version = version
+}
- // FIXME: poor performance
- function readTransaction () {
- var tx = Transaction.fromBuffer(buffer.slice(offset), true)
+TransactionBuilder.fromTransaction = function (transaction, network) {
+ var txb = new TransactionBuilder(network)
- offset += tx.toBuffer().length
- return tx
- }
+ // Copy transaction fields
+ txb.setVersion(transaction.version)
+ txb.setLockTime(transaction.locktime)
- var nTransactions = readVarInt()
- block.transactions = []
+ // Copy outputs (done first to avoid signature invalidation)
+ transaction.outs.forEach(function (txOut) {
+ txb.addOutput(txOut.script, txOut.value)
+ })
- for (var i = 0; i < nTransactions; ++i) {
- var tx = readTransaction()
- block.transactions.push(tx)
+ // Copy inputs
+ transaction.ins.forEach(function (txIn) {
+ txb.__addInputUnsafe(txIn.hash, txIn.index, {
+ sequence: txIn.sequence,
+ script: txIn.script,
+ witness: txIn.witness
+ })
+ })
+
+ // fix some things not possible through the public API
+ txb.inputs.forEach(function (input, i) {
+ fixMultisigOrder(input, transaction, i)
+ })
+
+ return txb
+}
+
+TransactionBuilder.prototype.addInput = function (txHash, vout, sequence, prevOutScript) {
+ if (!this.__canModifyInputs()) {
+ throw new Error('No, this would invalidate signatures')
}
- return block
-}
+ var value
-Block.fromHex = function (hex) {
- return Block.fromBuffer(new Buffer(hex, 'hex'))
-}
+ // 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()
-Block.prototype.getHash = function () {
- return crypto.hash256(this.toBuffer(true))
-}
+ // is it a Transaction object?
+ } else if (txHash instanceof Transaction) {
+ var txOut = txHash.outs[vout]
+ prevOutScript = txOut.script
+ value = txOut.value
-Block.prototype.getId = function () {
- return bufferutils.reverse(this.getHash()).toString('hex')
+ txHash = txHash.getHash()
+ }
+
+ return this.__addInputUnsafe(txHash, vout, {
+ sequence: sequence,
+ prevOutScript: prevOutScript,
+ value: value
+ })
}
-Block.prototype.getUTCDate = function () {
- var date = new Date(0) // epoch
- date.setUTCSeconds(this.timestamp)
+TransactionBuilder.prototype.__addInputUnsafe = function (txHash, vout, options) {
+ if (Transaction.isCoinbaseHash(txHash)) {
+ throw new Error('coinbase inputs not supported')
+ }
- return date
-}
+ var prevTxOut = txHash.toString('hex') + ':' + vout
+ if (this.prevTxMap[prevTxOut] !== undefined) throw new Error('Duplicate TxOut: ' + prevTxOut)
-Block.prototype.toBuffer = function (headersOnly) {
- var buffer = new Buffer(80)
+ var input = {}
- var offset = 0
- function writeSlice (slice) {
- slice.copy(buffer, offset)
- offset += slice.length
+ // derive what we can from the scriptSig
+ if (options.script !== undefined) {
+ input = expandInput(options.script, options.witness || [])
}
- function writeUInt32 (i) {
- buffer.writeUInt32LE(i, offset)
- offset += 4
+ // if an input value was given, retain it
+ if (options.value !== undefined) {
+ input.value = options.value
}
- writeUInt32(this.version)
- writeSlice(this.prevHash)
- writeSlice(this.merkleRoot)
- writeUInt32(this.timestamp)
- writeUInt32(this.bits)
- writeUInt32(this.nonce)
+ // derive what we can from the previous transactions output script
+ if (!input.prevOutScript && options.prevOutScript) {
+ var prevOutType
- if (headersOnly || !this.transactions) return buffer
+ if (!input.pubKeys && !input.signatures) {
+ var expanded = expandOutput(options.prevOutScript)
- var txLenBuffer = bufferutils.varIntBuffer(this.transactions.length)
- var txBuffers = this.transactions.map(function (tx) {
- return tx.toBuffer()
- })
+ if (expanded.pubKeys) {
+ input.pubKeys = expanded.pubKeys
+ input.signatures = expanded.signatures
+ }
- return Buffer.concat([buffer, txLenBuffer].concat(txBuffers))
-}
+ prevOutType = expanded.scriptType
+ }
-Block.prototype.toHex = function (headersOnly) {
- return this.toBuffer(headersOnly).toString('hex')
+ input.prevOutScript = options.prevOutScript
+ input.prevOutType = prevOutType || bscript.classifyOutput(options.prevOutScript)
+ }
+
+ var vin = this.tx.addInput(txHash, vout, options.sequence, options.scriptSig)
+ this.inputs[vin] = input
+ this.prevTxMap[prevTxOut] = vin
+
+ return vin
}
-module.exports = Block
+TransactionBuilder.prototype.addOutput = function (scriptPubKey, value) {
+ if (!this.__canModifyOutputs()) {
+ throw new Error('No, this would invalidate signatures')
+ }
-}).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')
+ // Attempt to get a script if it's a base58 address string
+ if (typeof scriptPubKey === 'string') {
+ scriptPubKey = baddress.toOutputScript(scriptPubKey, this.network)
+ }
-// 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 this.tx.addOutput(scriptPubKey, value)
}
-function pushDataSize (i) {
- return i < opcodes.OP_PUSHDATA1 ? 1
- : i < 0xff ? 2
- : i < 0xffff ? 3
- : 5
+TransactionBuilder.prototype.build = function () {
+ return this.__build(false)
+}
+TransactionBuilder.prototype.buildIncomplete = function () {
+ return this.__build(true)
}
-function readPushDataInt (buffer, offset) {
- var opcode = buffer.readUInt8(offset)
- var number, size
-
- // ~6 bit
- if (opcode < opcodes.OP_PUSHDATA1) {
- number = opcode
- size = 1
+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')
+ }
- // 8 bit
- } else if (opcode === opcodes.OP_PUSHDATA1) {
- if (offset + 2 > buffer.length) return null
- number = buffer.readUInt8(offset + 1)
- size = 2
+ 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)
- // 16 bit
- } else if (opcode === opcodes.OP_PUSHDATA2) {
- if (offset + 3 > buffer.length) return null
- number = buffer.readUInt16LE(offset + 1)
- size = 3
+ // skip if no result
+ if (!allowIncomplete) {
+ if (SIGNABLE.indexOf(result.type) === -1 && result.type !== bscript.types.P2WPKH) {
+ throw new Error(result.type + ' not supported')
+ }
+ }
- // 32 bit
- } else {
- if (offset + 5 > buffer.length) return null
- assert.equal(opcode, opcodes.OP_PUSHDATA4, 'Unexpected opcode')
+ tx.setInputScript(i, result.script)
+ tx.setWitness(i, result.witness)
+ })
- number = buffer.readUInt32LE(offset + 1)
- size = 5
+ 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 {
- opcode: opcode,
- number: number,
- size: size
- }
+ return tx
}
-function readUInt64LE (buffer, offset) {
- var a = buffer.readUInt32LE(offset)
- var b = buffer.readUInt32LE(offset + 4)
- b *= 0x100000000
-
- verifuint(b + a, 0x001fffffffffffff)
-
- return b + a
+function 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
}
-function readVarInt (buffer, offset) {
- var t = buffer.readUInt8(offset)
- var number, size
-
- // 8 bit
- if (t < 253) {
- number = t
- size = 1
+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
- // 16 bit
- } else if (t < 254) {
- number = buffer.readUInt16LE(offset + 1)
- size = 3
+ var input = this.inputs[vin]
- // 32 bit
- } else if (t < 255) {
- number = buffer.readUInt32LE(offset + 1)
- size = 5
+ // if redeemScript was previously provided, enforce consistency
+ if (input.redeemScript !== undefined &&
+ redeemScript &&
+ !input.redeemScript.equals(redeemScript)) {
+ throw new Error('Inconsistent redeemScript')
+ }
- // 64 bit
- } else {
- number = readUInt64LE(buffer, offset + 1)
- size = 9
+ var kpPubKey = keyPair.getPublicKeyBuffer()
+ if (!canSign(input)) {
+ prepareInput(input, kpPubKey, redeemScript, witnessValue, witnessScript)
+ if (!canSign(input)) throw Error(input.prevOutType + ' not supported')
}
- return {
- number: number,
- size: size
+ // 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')
-function writePushDataInt (buffer, number, offset) {
- var size = pushDataSize(number)
+ input.signatures[i] = keyPair.sign(signatureHash).toScriptSignature(hashType)
+ return true
+ })
- // ~6 bit
- if (size === 1) {
- buffer.writeUInt8(number, offset)
+ if (!signed) throw new Error('Key pair cannot sign for this input')
+}
- // 8 bit
- } else if (size === 2) {
- buffer.writeUInt8(opcodes.OP_PUSHDATA1, offset)
- buffer.writeUInt8(number, offset + 1)
+function signatureHashType (buffer) {
+ return buffer.readUInt8(buffer.length - 1)
+}
- // 16 bit
- } else if (size === 3) {
- buffer.writeUInt8(opcodes.OP_PUSHDATA2, offset)
- buffer.writeUInt16LE(number, offset + 1)
+TransactionBuilder.prototype.__canModifyInputs = function () {
+ return this.inputs.every(function (input) {
+ // any signatures?
+ if (input.signatures === undefined) return true
- // 32 bit
- } else {
- buffer.writeUInt8(opcodes.OP_PUSHDATA4, offset)
- buffer.writeUInt32LE(number, offset + 1)
- }
+ return input.signatures.every(function (signature) {
+ if (!signature) return true
+ var hashType = signatureHashType(signature)
- return size
+ // if SIGHASH_ANYONECANPAY is set, signatures would not
+ // be invalidated by more inputs
+ return hashType & Transaction.SIGHASH_ANYONECANPAY
+ })
+ })
}
-function writeUInt64LE (buffer, value, offset) {
- verifuint(value, 0x001fffffffffffff)
+TransactionBuilder.prototype.__canModifyOutputs = function () {
+ var nInputs = this.tx.ins.length
+ var nOutputs = this.tx.outs.length
- buffer.writeInt32LE(value & -1, offset)
- buffer.writeUInt32LE(Math.floor(value / 0x100000000), offset + 4)
-}
+ return this.inputs.every(function (input) {
+ if (input.signatures === undefined) return true
-function varIntSize (i) {
- return i < 253 ? 1
- : i < 0x10000 ? 3
- : i < 0x100000000 ? 5
- : 9
+ return input.signatures.every(function (signature) {
+ if (!signature) return true
+ var hashType = signatureHashType(signature)
+
+ var hashTypeMod = hashType & 0x1f
+ if (hashTypeMod === Transaction.SIGHASH_NONE) return true
+ if (hashTypeMod === Transaction.SIGHASH_SINGLE) {
+ // if SIGHASH_SINGLE is set, and nInputs > nOutputs
+ // some signatures would be invalidated by the addition
+ // of more outputs
+ return nInputs <= nOutputs
+ }
+ })
+ })
}
-function writeVarInt (buffer, number, offset) {
- var size = varIntSize(number)
+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)
- // 8 bit
- if (size === 1) {
- buffer.writeUInt8(number, offset)
+ // 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
- // 16 bit
- } else if (size === 3) {
- buffer.writeUInt8(253, offset)
- buffer.writeUInt16LE(number, offset + 1)
+ return feeRate > this.maximumFeeRate
+}
- // 32 bit
- } else if (size === 5) {
- buffer.writeUInt8(254, offset)
- buffer.writeUInt32LE(number, offset + 1)
+module.exports = TransactionBuilder
- // 64 bit
- } else {
- buffer.writeUInt8(255, offset)
- writeUInt64LE(buffer, number, offset + 1)
- }
+},{"./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 size
+var UINT31_MAX = Math.pow(2, 31) - 1
+function UInt31 (value) {
+ return typeforce.UInt32(value) && value <= UINT31_MAX
}
-function varIntBuffer (i) {
- var size = varIntSize(i)
- var buffer = new Buffer(size)
- writeVarInt(buffer, i, 0)
+function BIP32Path (value) {
+ return typeforce.String(value) && value.match(/^(m\/)?(\d+'?\/)*\d+'?$/)
+}
+BIP32Path.toJSON = function () { return 'BIP32 derivation path' }
- return buffer
+var SATOSHI_MAX = 21 * 1e14
+function Satoshi (value) {
+ return typeforce.UInt53(value) && value <= SATOSHI_MAX
}
-function reverse (buffer) {
- var buffer2 = new Buffer(buffer)
- Array.prototype.reverse.call(buffer2)
- return buffer2
+// external dependent types
+var BigInt = typeforce.quacksLike('BigInteger')
+var ECPoint = typeforce.quacksLike('Point')
+
+// exposed, external API
+var ECSignature = typeforce.compile({ r: BigInt, s: BigInt })
+var Network = typeforce.compile({
+ messagePrefix: typeforce.oneOf(typeforce.Buffer, typeforce.String),
+ bip32: {
+ public: typeforce.UInt32,
+ private: typeforce.UInt32
+ },
+ pubKeyHash: typeforce.UInt8,
+ scriptHash: typeforce.UInt8,
+ wif: typeforce.UInt8
+})
+
+// extend typeforce types with ours
+var types = {
+ BigInt: BigInt,
+ BIP32Path: BIP32Path,
+ Buffer256bit: typeforce.BufferN(32),
+ ECPoint: ECPoint,
+ ECSignature: ECSignature,
+ Hash160bit: typeforce.BufferN(20),
+ Hash256bit: typeforce.BufferN(32),
+ Network: Network,
+ Satoshi: Satoshi,
+ UInt31: UInt31
}
-module.exports = {
- pushDataSize: pushDataSize,
- readPushDataInt: readPushDataInt,
- readUInt64LE: readUInt64LE,
- readVarInt: readVarInt,
- reverse: reverse,
- varIntBuffer: varIntBuffer,
- varIntSize: varIntSize,
- writePushDataInt: writePushDataInt,
- writeUInt64LE: writeUInt64LE,
- writeVarInt: writeVarInt
+for (var typeName in typeforce) {
+ types[typeName] = typeforce[typeName]
}
-}).call(this,require("buffer").Buffer)
-},{"./opcodes":67,"assert":5,"buffer":7}],58:[function(require,module,exports){
+module.exports = types
+
+},{"typeforce":109}],79:[function(require,module,exports){
+var basex = require('base-x')
+var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
+
+module.exports = basex(ALPHABET)
+
+},{"base-x":34}],80:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+
+var base58 = require('bs58')
var createHash = require('create-hash')
-function hash160 (buffer) {
- return ripemd160(sha256(buffer))
+// SHA256(SHA256(buffer))
+function sha256x2 (buffer) {
+ var tmp = createHash('sha256').update(buffer).digest()
+ return createHash('sha256').update(tmp).digest()
}
-function hash256 (buffer) {
- return sha256(sha256(buffer))
-}
+// Encode a buffer as a base58-check encoded string
+function encode (payload) {
+ var checksum = sha256x2(payload)
-function ripemd160 (buffer) {
- return createHash('rmd160').update(buffer).digest()
+ return base58.encode(Buffer.concat([
+ payload,
+ checksum
+ ], payload.length + 4))
}
-function sha1 (buffer) {
- return createHash('sha1').update(buffer).digest()
-}
+function decodeRaw (buffer) {
+ var payload = buffer.slice(0, -4)
+ var checksum = buffer.slice(-4)
+ var newChecksum = sha256x2(payload)
-function sha256 (buffer) {
- return createHash('sha256').update(buffer).digest()
+ if (checksum[0] ^ newChecksum[0] |
+ checksum[1] ^ newChecksum[1] |
+ checksum[2] ^ newChecksum[2] |
+ checksum[3] ^ newChecksum[3]) return
+
+ return payload
}
-// FIXME: Name not consistent with others
-var createHmac = require('create-hmac')
+// 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
-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()
+ return decodeRaw(buffer)
}
-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()
+function decode (string) {
+ var buffer = base58.decode(string)
+ var payload = decodeRaw(buffer)
+ if (!payload) throw new Error('Invalid checksum')
+ return payload
}
module.exports = {
- ripemd160: ripemd160,
- sha1: sha1,
- sha256: sha256,
- hash160: hash160,
- hash256: hash256,
- HmacSHA256: HmacSHA256,
- HmacSHA512: HmacSHA512
+ encode: encode,
+ decode: decode,
+ decodeUnsafe: decodeUnsafe
}
-},{"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')
+}).call(this,require("buffer").Buffer)
+},{"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')
-var BigInteger = require('bigi')
-var ECSignature = require('./ecsignature')
+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)
-var ZERO = new Buffer([0])
-var ONE = new Buffer([1])
+CipherBase.prototype.update = function (data, inputEnc, outputEnc) {
+ if (typeof data === 'string') {
+ data = Buffer.from(data, inputEnc)
+ }
-// https://tools.ietf.org/html/rfc6979#section-3.2
-function deterministicGenerateK (curve, hash, d, checkSig) {
- typeForce('Buffer', hash)
- typeForce('BigInteger', d)
+ var outData = this._update(data)
+ if (this.hashMode) return this
- // FIXME: remove/uncomment for 2.0.0
- // typeForce('Function', checkSig)
+ if (outputEnc) {
+ outData = this._toString(outData, outputEnc)
+ }
- if (typeof checkSig !== 'function') {
- console.warn('deterministicGenerateK requires a checkSig callback in 2.0.0, see #337 for more information')
+ return outData
+}
- checkSig = function (k) {
- var G = curve.G
- var n = curve.n
- var e = BigInteger.fromBuffer(hash)
+CipherBase.prototype.setAutoPadding = function () {}
+CipherBase.prototype.getAuthTag = function () {
+ throw new Error('trying to get auth tag in unsupported state')
+}
- var Q = G.multiply(k)
+CipherBase.prototype.setAuthTag = function () {
+ throw new Error('trying to set auth tag in unsupported state')
+}
- if (curve.isInfinity(Q))
- return false
+CipherBase.prototype.setAAD = function () {
+ throw new Error('trying to set aad in unsupported state')
+}
- var r = Q.affineX.mod(n)
- if (r.signum() === 0)
- return false
+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
+ }
- var s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n)
- if (s.signum() === 0)
- return false
+ done(err)
+}
+CipherBase.prototype._finalOrDigest = function (outputEnc) {
+ var outData = this.__final() || Buffer.alloc(0)
+ if (outputEnc) {
+ outData = this._toString(outData, outputEnc, true)
+ }
+ return outData
+}
- return true
- }
+CipherBase.prototype._toString = function (value, enc, fin) {
+ if (!this._decoder) {
+ this._decoder = new StringDecoder(enc)
+ this._encoding = enc
}
- // sanity check
- assert.equal(hash.length, 32, 'Hash must be 256 bit')
+ if (this._encoding !== enc) throw new Error('can\'t switch encodings')
- var x = d.toBuffer(32)
- var k = new Buffer(32)
- var v = new Buffer(32)
+ var out = this._decoder.write(value)
+ if (fin) {
+ out += this._decoder.end()
+ }
- // Step A, ignored as hash already provided
- // Step B
- v.fill(1)
+ return out
+}
- // Step C
- k.fill(0)
+module.exports = CipherBase
- // Step D
- k = createHmac('sha256', k)
- .update(v)
- .update(ZERO)
- .update(x)
- .update(hash)
- .digest()
+},{"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')
- // Step E
- v = createHmac('sha256', k).update(v).digest()
+var Base = require('cipher-base')
- // Step F
- k = createHmac('sha256', k)
- .update(v)
- .update(ONE)
- .update(x)
- .update(hash)
- .digest()
+function HashNoConstructor (hash) {
+ Base.call(this, 'digest')
- // Step G
- v = createHmac('sha256', k).update(v).digest()
+ this._hash = hash
+ this.buffers = []
+}
- // Step H1/H2a, ignored as tlen === qlen (256 bit)
- // Step H2b
- v = createHmac('sha256', k).update(v).digest()
+inherits(HashNoConstructor, Base)
- var T = BigInteger.fromBuffer(v)
+HashNoConstructor.prototype._update = function (data) {
+ this.buffers.push(data)
+}
- // 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()
+HashNoConstructor.prototype._final = function () {
+ var buf = Buffer.concat(this.buffers)
+ var r = this._hash(buf)
+ this.buffers = null
- v = createHmac('sha256', k).update(v).digest()
+ return r
+}
- // Step H1/H2a, again, ignored as tlen === qlen (256 bit)
- // Step H2b again
- v = createHmac('sha256', k).update(v).digest()
- T = BigInteger.fromBuffer(v)
- }
+function Hash (hash) {
+ Base.call(this, 'digest')
- return T
+ this._hash = hash
}
-function sign (curve, hash, d) {
- var r, s
+inherits(Hash, Base)
- var e = BigInteger.fromBuffer(hash)
- var n = curve.n
- var G = curve.G
+Hash.prototype._update = function (data) {
+ this._hash.update(data)
+}
- deterministicGenerateK(curve, hash, d, function (k) {
- var Q = G.multiply(k)
+Hash.prototype._final = function () {
+ return this._hash.digest()
+}
- if (curve.isInfinity(Q))
- return false
+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())
- 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":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)
- return true
- })
+var charSize = 8
+var hashSize = 16
- var N_OVER_TWO = n.shiftRight(1)
+function toArray (buf) {
+ 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 = new Array(buf.length >>> 2)
+ for (var i = 0, j = 0; i < buf.length; i += intSize, j++) {
+ arr[j] = buf.readInt32LE(i)
}
- return new ECSignature(r, s)
+ return arr
}
-function verifyRaw (curve, e, signature, Q) {
- var n = curve.n
- var G = curve.G
+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 r = signature.r
- var s = signature.s
+}).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.
+ */
- // 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 makeHash = require('./make-hash')
- // c = s^-1 mod n
- var c = s.modInverse(n)
+/*
+ * 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]
+}
- // 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)
+/*
+ * 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)
+}
- // 1.4.5 Compute R = (xR, yR) = u1G + u2Q
- var R = G.multiplyTwo(u1, Q, u2)
- var v = R.affineX.mod(n)
+function md5_ff (a, b, c, d, x, s, t) {
+ return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t)
+}
- // 1.4.5 (cont.) Enforce R is not at infinity
- if (curve.isInfinity(R)) return false
+function md5_gg (a, b, c, d, x, s, t) {
+ return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t)
+}
- // 1.4.8 If v = r, output "valid", and if v != r, output "invalid"
- return v.equals(r)
+function md5_hh (a, b, c, d, x, s, t) {
+ return md5_cmn(b ^ c ^ d, a, b, x, s, t)
}
-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)
+function md5_ii (a, b, c, d, x, s, t) {
+ return md5_cmn(c ^ (b | (~d)), a, b, x, s, t)
+}
- return verifyRaw(curve, e, signature, Q)
+/*
+ * 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)
}
-/**
- * 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')
+/*
+ * Bitwise rotate a 32-bit number to the left.
+ */
+function bit_rol (num, cnt) {
+ return (num << cnt) | (num >>> (32 - cnt))
+}
- var n = curve.n
- var G = curve.G
+module.exports = function md5 (buf) {
+ return makeHash(buf, core_md5)
+}
- var r = signature.r
- var s = signature.s
+},{"./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')
- assert(r.signum() > 0 && r.compareTo(n) < 0, 'Invalid r value')
- assert(s.signum() > 0 && s.compareTo(n) < 0, 'Invalid s value')
+var sha = require('sha.js')
- // A set LSB signifies that the y-coordinate is odd
- var isYOdd = i & 1
+var ZEROS = Buffer.alloc(128)
- // The more significant bit specifies whether we should use the
- // first or second candidate key.
- var isSecondKey = i >> 1
+function Hmac (alg, key) {
+ Base.call(this, 'digest')
+ if (typeof key === 'string') {
+ key = Buffer.from(key)
+ }
- // 1.1 Let x = r + jn
- var x = isSecondKey ? r.add(n) : r
- var R = curve.pointFromX(isYOdd, x)
+ var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64
- // 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
+ 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)
+ }
- // Compute -e from e
- var eNeg = e.negate().mod(n)
+ var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
+ var opad = this._opad = Buffer.allocUnsafe(blocksize)
- // 1.6.1 Compute Q = r^-1 (sR - eG)
- // Q = r^-1 (sR + -eG)
- var rInv = r.modInverse(n)
+ 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)
+}
- var Q = R.multiplyTwo(s, G, eNeg).multiply(rInv)
- curve.validate(Q)
+inherits(Hmac, Base)
- return Q
+Hmac.prototype._update = function (data) {
+ this._hash.update(data)
}
-/**
- * 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)
+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()
+}
- // 1.6.2 Verify Q
- if (Qprime.equals(Q)) {
- return i
- }
+module.exports = function createHmac (alg, key) {
+ alg = alg.toLowerCase()
+ if (alg === 'rmd160' || alg === 'ripemd160') {
+ return new Hmac('rmd160', key)
}
-
- throw new Error('Unable to find valid recovery factor')
+ if (alg === 'md5') {
+ return new Legacy(md5, key)
+ }
+ return new Hmac(alg, key)
}
-module.exports = {
- calcPubKeyRecoveryParam: calcPubKeyRecoveryParam,
- deterministicGenerateK: deterministicGenerateK,
- recoverPubKey: recoverPubKey,
- sign: sign,
- verify: verify,
- verifyRaw: verifyRaw
-}
+},{"./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
-}).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){
-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 Base = require('cipher-base')
+
+var ZEROS = Buffer.alloc(128)
+var blocksize = 64
+
+function Hmac (alg, key) {
+ Base.call(this, 'digest')
+ if (typeof key === 'string') {
+ key = Buffer.from(key)
+ }
+
+ this._alg = alg
+ this._key = key
+
+ if (key.length > blocksize) {
+ key = alg(key)
+ } else if (key.length < blocksize) {
+ key = Buffer.concat([key, ZEROS], blocksize)
+ }
-var BigInteger = require('bigi')
-var ECPubKey = require('./ecpubkey')
+ var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
+ var opad = this._opad = Buffer.allocUnsafe(blocksize)
-var ecurve = require('ecurve')
-var secp256k1 = ecurve.getCurveByName('secp256k1')
+ for (var i = 0; i < blocksize; i++) {
+ ipad[i] = key[i] ^ 0x36
+ opad[i] = key[i] ^ 0x5C
+ }
-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')
+ this._hash = [ipad]
+}
- var Q = ECKey.curve.G.multiply(d)
+inherits(Hmac, Base)
- this.d = d
- this.pub = new ECPubKey(Q, compressed)
+Hmac.prototype._update = function (data) {
+ this._hash.push(data)
}
-// Constants
-ECKey.curve = secp256k1
+Hmac.prototype._final = function () {
+ var h = this._alg(Buffer.concat(this._hash))
+ return this._alg(Buffer.concat([this._opad, h]))
+}
+module.exports = Hmac
-// Static constructors
-ECKey.fromWIF = function (string) {
- var payload = base58check.decode(string)
- var compressed = false
+},{"cipher-base":81,"inherits":93,"safe-buffer":98}],87:[function(require,module,exports){
+var assert = require('assert')
+var BigInteger = require('bigi')
- // Ignore the version byte
- payload = payload.slice(1)
+var Point = require('./point')
- if (payload.length === 33) {
- assert.strictEqual(payload[32], 0x01, 'Invalid compression flag')
+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
- // Truncate the compression flag
- payload = payload.slice(0, -1)
- compressed = true
- }
+ this.infinity = new Point(this, null, null, BigInteger.ZERO)
- assert.equal(payload.length, 32, 'Invalid WIF payload length')
+ // result caching
+ this.pOverFour = p.add(BigInteger.ONE).shiftRight(2)
- var d = BigInteger.fromBuffer(payload)
- return new ECKey(d, compressed)
+ // determine size of p in bytes
+ this.pLength = Math.floor((this.p.bitLength() + 7) / 8)
}
-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')
+Curve.prototype.pointFromX = function (isOdd, x) {
+ var alpha = x.pow(3).add(this.a.multiply(x)).add(this.b).mod(this.p)
+ var beta = alpha.modPow(this.pOverFour, this.p) // XXX: not compatible with all curves
- var d = BigInteger.fromBuffer(buffer)
- d = d.mod(ECKey.curve.n)
+ var y = beta
+ if (beta.isEven() ^ !isOdd) {
+ y = this.p.subtract(y) // -y % p
+ }
- return new ECKey(d, compressed)
+ return Point.fromAffine(this, x, y)
}
-// Export functions
-ECKey.prototype.toWIF = function (network) {
- network = network || networks.bitcoin
+Curve.prototype.isInfinity = function (Q) {
+ if (Q === this.infinity) return true
- var bufferLen = this.pub.compressed ? 34 : 33
- var buffer = new Buffer(bufferLen)
+ return Q.z.signum() === 0 && Q.y.signum() !== 0
+}
- 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()
+Point.prototype.twice = function () {
+ if (this.curve.isInfinity(this)) return this
+ if (this.y.signum() === 0) return this.curve.infinity
+
+ var x1 = this.x
+ var y1 = this.y
- var sequence = []
+ var y1z1 = y1.multiply(this.z).mod(this.curve.p)
+ var y1sqz1 = y1z1.multiply(y1).mod(this.curve.p)
+ var a = this.curve.a
- // INTEGER
- sequence.push(0x02, rBa.length)
- sequence = sequence.concat(rBa)
+ // w = 3 * x1^2 + a * z1^2
+ var w = x1.square().multiply(THREE)
- // INTEGER
- sequence.push(0x02, sBa.length)
- sequence = sequence.concat(sBa)
+ if (a.signum() !== 0) {
+ w = w.add(this.z.square().multiply(a))
+ }
- // SEQUENCE
- sequence.unshift(0x30, sequence.length)
+ w = w.mod(this.curve.p)
+ // x3 = 2 * y1 * z1 * (w^2 - 8 * x1 * y1^2 * z1)
+ var x3 = w.square().subtract(x1.shiftLeft(3).multiply(y1sqz1)).shiftLeft(1).multiply(y1z1).mod(this.curve.p)
+ // y3 = 4 * y1^2 * z1 * (3 * w * x1 - 2 * y1^2 * z1) - w^3
+ var y3 = w.multiply(THREE).multiply(x1).subtract(y1sqz1.shiftLeft(1)).shiftLeft(2).multiply(y1sqz1).subtract(w.pow(3)).mod(this.curve.p)
+ // z3 = 8 * (y1 * z1)^3
+ var z3 = y1z1.pow(3).shiftLeft(3).mod(this.curve.p)
- return new Buffer(sequence)
+ return new Point(this.curve, x3, y3, z3)
}
-ECSignature.prototype.toScriptSignature = function (hashType) {
- var hashTypeMod = hashType & ~0x80
- assert(hashTypeMod > 0x00 && hashTypeMod < 0x04, 'Invalid hashType ' + hashType)
+// Simple NAF (Non-Adjacent Form) multiplication algorithm
+// TODO: modularize the multiplication algorithm
+Point.prototype.multiply = function (k) {
+ if (this.curve.isInfinity(this)) return this
+ if (k.signum() === 0) return this.curve.infinity
- var hashTypeBuffer = new Buffer(1)
- hashTypeBuffer.writeUInt8(hashType, 0)
+ var e = k
+ var h = e.multiply(THREE)
- return Buffer.concat([this.toDER(), hashTypeBuffer])
-}
+ var neg = this.negate()
+ var R = this
-module.exports = ECSignature
+ for (var i = h.bitLength() - 2; i > 0; --i) {
+ var hBit = h.testBit(i)
+ var eBit = e.testBit(i)
-}).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')
+ R = R.twice()
-var BigInteger = require('bigi')
-var ECKey = require('./eckey')
-var ECPubKey = require('./ecpubkey')
+ if (hBit !== eBit) {
+ R = R.add(hBit ? this : neg)
+ }
+ }
-var ecurve = require('ecurve')
-var curve = ecurve.getCurveByName('secp256k1')
+ return R
+}
+
+// Compute this*j + x*k (simultaneous multiplication)
+Point.prototype.multiplyTwo = function (j, x, k) {
+ var i = Math.max(j.bitLength(), k.bitLength()) - 1
+ var R = this.curve.infinity
+ var both = this.add(x)
+
+ while (i >= 0) {
+ var jBit = j.testBit(i)
+ var kBit = k.testBit(i)
-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 (jBit) {
+ if (kBit) {
+ R = R.add(both)
+ } else {
+ R = R.add(this)
+ }
+ } else if (kBit) {
+ R = R.add(x)
}
+ --i
}
- assert(false, 'Could not find network for ' + version.toString(16))
+ return R
}
-function HDNode (K, chainCode, network) {
- network = network || networks.bitcoin
+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'
- typeForce('Buffer', chainCode)
+ var x = this.affineX
+ var y = this.affineY
+ var byteLength = this.curve.pLength
+ var buffer
- assert.equal(chainCode.length, 32, 'Expected chainCode length of 32, got ' + chainCode.length)
- assert(network.bip32, 'Unknown BIP32 constants for network')
+ // 0x02/0x03 | X
+ if (compressed) {
+ buffer = new Buffer(1 + byteLength)
+ buffer.writeUInt8(y.isEven() ? 0x02 : 0x03, 0)
- 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
+ // 0x04 | X | Y
} else {
- this.pubKey = new ECPubKey(K, true)
+ buffer = new Buffer(1 + byteLength + byteLength)
+ buffer.writeUInt8(0x04, 0)
+
+ y.toBuffer(byteLength).copy(buffer, 1 + byteLength)
}
+
+ x.toBuffer(byteLength).copy(buffer, 1)
+
+ return buffer
}
-HDNode.MASTER_SECRET = new Buffer('Bitcoin seed')
-HDNode.HIGHEST_BIT = 0x80000000
-HDNode.LENGTH = 78
+Point.decodeFrom = function (curve, buffer) {
+ var type = buffer.readUInt8(0)
+ var compressed = (type !== 4)
-HDNode.fromSeedBuffer = function (seed, network) {
- typeForce('Buffer', seed)
+ var byteLength = Math.floor((curve.p.bitLength() + 7) / 8)
+ var x = BigInteger.fromBuffer(buffer.slice(1, 1 + byteLength))
- assert(seed.length >= 16, 'Seed should be at least 128 bits')
- assert(seed.length <= 64, 'Seed should be at most 512 bits')
+ var Q
+ if (compressed) {
+ assert.equal(buffer.length, byteLength + 1, 'Invalid sequence length')
+ assert(type === 0x02 || type === 0x03, 'Invalid sequence tag')
- var I = createHmac('sha512', HDNode.MASTER_SECRET).update(seed).digest()
- var IL = I.slice(0, 32)
- var IR = I.slice(32)
+ var isOdd = (type === 0x03)
+ Q = curve.pointFromX(isOdd, x)
+ } else {
+ assert.equal(buffer.length, 1 + byteLength + byteLength, 'Invalid sequence length')
- // 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)
+ var y = BigInteger.fromBuffer(buffer.slice(1 + byteLength))
+ Q = Point.fromAffine(curve, x, y)
+ }
- return new HDNode(pIL, IR, network)
+ Q.compressed = compressed
+ return Q
}
-HDNode.fromSeedHex = function (hex, network) {
- return HDNode.fromSeedBuffer(new Buffer(hex, 'hex'), network)
-}
+Point.prototype.toString = function () {
+ if (this.curve.isInfinity(this)) return '(INFINITY)'
-HDNode.fromBase58 = function (string, network) {
- return HDNode.fromBuffer(base58check.decode(string), network, true)
+ return '(' + this.affineX.toString() + ',' + this.affineY.toString() + ')'
}
-// 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')
- }
+module.exports = Point
- assert.strictEqual(buffer.length, HDNode.LENGTH, 'Invalid buffer length')
+}).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')
- // 4 byte: version bytes
- var version = buffer.readUInt32BE(0)
+function HashBase (blockSize) {
+ Transform.call(this)
- if (network) {
- assert(version === network.bip32.private || version === network.bip32.public, "Network doesn't match")
+ this._block = new Buffer(blockSize)
+ this._blockSize = blockSize
+ this._blockOffset = 0
+ this._length = [0, 0, 0, 0]
- // auto-detect
- } else {
- network = findBIP32NetworkByVersion(version)
- }
+ this._finalized = false
+}
- // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ...
- var depth = buffer.readUInt8(4)
+inherits(HashBase, Transform)
- // 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')
+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
}
- // 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')
-
- // 32 bytes: the chain code
- var chainCode = buffer.slice(13, 45)
- var data, hd
+ callback(error)
+}
- // 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)
+HashBase.prototype._flush = function (callback) {
+ var error = null
+ try {
+ this.push(this._digest())
+ } catch (err) {
+ error = err
+ }
- // 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')
+ callback(error)
+}
- // 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)
+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')
- hd = new HDNode(Q, chainCode, 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++]
- hd.depth = depth
- hd.index = index
- hd.parentFingerprint = 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 hd
+ return this
}
-// FIXME: remove in 2.x.y
-HDNode.fromHex = function (hex, network) {
- return HDNode.fromBuffer(new Buffer(hex, 'hex'), network)
+HashBase.prototype._update = function (data) {
+ throw new Error('_update is not implemented')
}
-HDNode.prototype.getIdentifier = function () {
- return bcrypto.hash160(this.pubKey.toBuffer())
-}
+HashBase.prototype.digest = function (encoding) {
+ if (this._finalized) throw new Error('Digest already called')
+ this._finalized = true
-HDNode.prototype.getFingerprint = function () {
- return this.getIdentifier().slice(0, 4)
+ var digest = this._digest()
+ if (encoding !== undefined) digest = digest.toString(encoding)
+ return digest
}
-HDNode.prototype.getAddress = function () {
- return this.pubKey.getAddress(this.network)
+HashBase.prototype._digest = function () {
+ throw new Error('_digest is not implemented')
}
-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
+module.exports = HashBase
- return neutered
+}).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')
+
+ var length = values.length
+ var results = values.concat()
+
+ while (length > 1) {
+ var j = 0
+
+ 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])
+
+ results[j] = digestFn(data)
+ }
+
+ length = j
+ }
+
+ return results[0]
}
-HDNode.prototype.toBase58 = function (isPrivate) {
- return base58check.encode(this.toBuffer(isPrivate, true))
+}).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
}
-// FIXME: remove in 2.x.y
-HDNode.prototype.toBuffer = function (isPrivate, __ignoreDeprecation) {
- if (isPrivate === undefined) {
- isPrivate = !!this.privKey
+function encode (buffer, number, offset) {
+ var size = encodingLength(number)
- // FIXME: remove in 2.x.y
- } else {
- console.warn('isPrivate flag is deprecated, please use the .neutered() method instead')
- }
+ // ~6 bit
+ if (size === 1) {
+ buffer.writeUInt8(number, offset)
- if (!__ignoreDeprecation) {
- console.warn('HDNode.toBuffer() is deprecated for removal in 2.x.y, use toBase58 instead')
- }
+ // 8 bit
+ } else if (size === 2) {
+ buffer.writeUInt8(OPS.OP_PUSHDATA1, offset)
+ buffer.writeUInt8(number, offset + 1)
- // Version
- var version = isPrivate ? this.network.bip32.private : this.network.bip32.public
- var buffer = new Buffer(HDNode.LENGTH)
+ // 16 bit
+ } else if (size === 3) {
+ buffer.writeUInt8(OPS.OP_PUSHDATA2, offset)
+ buffer.writeUInt16LE(number, offset + 1)
- // 4 bytes: version bytes
- buffer.writeUInt32BE(version, 0)
+ // 32 bit
+ } else {
+ buffer.writeUInt8(OPS.OP_PUSHDATA4, offset)
+ buffer.writeUInt32LE(number, offset + 1)
+ }
- // Depth
- // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ....
- buffer.writeUInt8(this.depth, 4)
+ return size
+}
- // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
- buffer.writeUInt32BE(this.parentFingerprint, 5)
+function decode (buffer, offset) {
+ var opcode = buffer.readUInt8(offset)
+ var number, size
- // 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)
+ // ~6 bit
+ if (opcode < OPS.OP_PUSHDATA1) {
+ number = opcode
+ size = 1
- // 32 bytes: the chain code
- this.chainCode.copy(buffer, 13)
+ // 8 bit
+ } else if (opcode === OPS.OP_PUSHDATA1) {
+ if (offset + 2 > buffer.length) return null
+ number = buffer.readUInt8(offset + 1)
+ size = 2
- // 33 bytes: the public key or private key data
- if (isPrivate) {
- // FIXME: remove in 2.x.y
- assert(this.privKey, 'Missing private key')
+ // 16 bit
+ } else if (opcode === OPS.OP_PUSHDATA2) {
+ if (offset + 3 > buffer.length) return null
+ number = buffer.readUInt16LE(offset + 1)
+ size = 3
- // 0x00 + k for private keys
- buffer.writeUInt8(0, 45)
- this.privKey.d.toBuffer(32).copy(buffer, 46)
+ // 32 bit
} else {
- // X9.62 encoding for public keys
- this.pubKey.toBuffer().copy(buffer, 45)
+ if (offset + 5 > buffer.length) return null
+ if (opcode !== OPS.OP_PUSHDATA4) throw new Error('Unexpected opcode')
+
+ number = buffer.readUInt32LE(offset + 1)
+ size = 5
+ }
+
+ return {
+ opcode: opcode,
+ number: number,
+ size: size
}
-
- return buffer
}
-// FIXME: remove in 2.x.y
-HDNode.prototype.toHex = function (isPrivate) {
- return this.toBuffer(isPrivate).toString('hex')
+module.exports = {
+ encodingLength: encodingLength,
+ encode: encode,
+ decode: decode
}
-// 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)
+},{"bitcoin-ops":40}],96:[function(require,module,exports){
+(function (process,global){
+'use strict'
- var data
+function oldBrowser () {
+ throw new Error('secure random number generation not supported by this browser\nuse chrome, FireFox or Internet Explorer 11')
+}
- // Hardened child
- if (isHardened) {
- assert(this.privKey, 'Could not derive hardened child key')
+var Buffer = require('safe-buffer').Buffer
+var crypto = global.crypto || global.msCrypto
- // data = 0x00 || ser256(kpar) || ser32(index)
- data = Buffer.concat([
- this.privKey.d.toBuffer(33),
- indexBuffer
- ])
+if (crypto && crypto.getRandomValues) {
+ module.exports = randomBytes
+} else {
+ module.exports = oldBrowser
+}
- // Normal child
- } else {
- // data = serP(point(kpar)) || ser32(index)
- // = serP(Kpar) || ser32(index)
- data = Buffer.concat([
- this.pubKey.toBuffer(),
- indexBuffer
- ])
- }
+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 I = createHmac('sha512', this.chainCode).update(data).digest()
- var IL = I.slice(0, 32)
- var IR = I.slice(32)
+ // 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 pIL = BigInteger.fromBuffer(IL)
+ // XXX: phantomjs doesn't like a buffer being passed here
+ var bytes = Buffer.from(rawBytes.buffer)
- // In case parse256(IL) >= n, proceed with the next value for i
- if (pIL.compareTo(curve.n) >= 0) {
- return this.derive(index + 1)
+ if (typeof cb === 'function') {
+ return process.nextTick(function () {
+ cb(null, bytes)
+ })
}
- // 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)
+ return bytes
+}
- // In case ki == 0, proceed with the next value for i
- if (ki.signum() === 0) {
- return this.derive(index + 1)
- }
+}).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')
- hd = new HDNode(ki, IR, this.network)
+function RIPEMD160 () {
+ HashBase.call(this, 64)
- // Public parent key -> public child key
- } else {
- // Ki = point(parse256(IL)) + Kpar
- // = G*IL + Kpar
- var Ki = curve.G.multiply(pIL).add(this.pubKey.Q)
+ // state
+ this._a = 0x67452301
+ this._b = 0xefcdab89
+ this._c = 0x98badcfe
+ this._d = 0x10325476
+ this._e = 0xc3d2e1f0
+}
- // In case Ki is the point at infinity, proceed with the next value for i
- if (curve.isInfinity(Ki)) {
- return this.derive(index + 1)
- }
+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
+}
- hd = new HDNode(Ki, IR, this.network)
- }
+function rotl (x, n) {
+ return (x << n) | (x >>> (32 - n))
+}
- hd.depth = this.depth + 1
- hd.index = index
- hd.parentFingerprint = this.getFingerprint().readUInt32BE(0)
+function fn1 (a, b, c, d, e, m, k, s) {
+ return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + e) | 0
+}
- return hd
+function fn2 (a, b, c, d, e, m, k, s) {
+ return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + e) | 0
}
-HDNode.prototype.deriveHardened = function (index) {
- // Only derives hardened private keys by default
- return this.derive(index + HDNode.HIGHEST_BIT)
+function fn3 (a, b, c, d, e, m, k, s) {
+ return (rotl((a + ((b | (~c)) ^ d) + m + k) | 0, s) + e) | 0
}
-HDNode.prototype.toString = HDNode.prototype.toBase58
+function fn4 (a, b, c, d, e, m, k, s) {
+ return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + e) | 0
+}
-module.exports = HDNode
+function fn5 (a, b, c, d, e, m, k, s) {
+ return (rotl((a + (b ^ (c | (~d))) + m + k) | 0, s) + e) | 0
+}
+
+module.exports = RIPEMD160
}).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')
+},{"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
}
-},{"./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')
+Hash.prototype.update = function (data, enc) {
+ if (typeof data === 'string') {
+ enc = enc || 'utf8'
+ data = new Buffer(data, enc)
+ }
-var BigInteger = require('bigi')
-var ECPubKey = require('./ecpubkey')
-var ECSignature = require('./ecsignature')
+ var l = this._len += data.length
+ var s = this._s || 0
+ var f = 0
+ var buffer = this._block
-var ecurve = require('ecurve')
-var ecparams = ecurve.getCurveByName('secp256k1')
+ while (s < l) {
+ var t = Math.min(data.length, f + this._blockSize - (s % this._blockSize))
+ var ch = (t - f)
-function magicHash (message, network) {
- var magicPrefix = new Buffer(network.magicPrefix)
- var messageBuffer = new Buffer(message)
- var lengthBuffer = bufferutils.varIntBuffer(messageBuffer.length)
+ for (var i = 0; i < ch; i++) {
+ buffer[(s % this._blockSize) + i] = data[i + f]
+ }
+
+ s += ch
+ f += ch
+
+ if ((s % this._blockSize) === 0) {
+ this._update(buffer)
+ }
+ }
+ this._s = s
- var buffer = Buffer.concat([magicPrefix, lengthBuffer, messageBuffer])
- return crypto.hash256(buffer)
+ return this
}
-function sign (privKey, message, network) {
- network = network || networks.bitcoin
+Hash.prototype.digest = function (enc) {
+ // Suppose the length of the message M, in bits, is l
+ var l = this._len * 8
- 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)
+ // Append the bit 1 to the end of the message
+ this._block[this._len % this._blockSize] = 0x80
- return signature.toCompact(i, privKey.pub.compressed)
-}
+ // 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)
-// TODO: network could be implied from address
-function verify (address, signature, message, network) {
- if (!Buffer.isBuffer(signature)) {
- signature = new Buffer(signature, 'base64')
+ if (l % (this._blockSize * 8) >= this._finalSize * 8) {
+ this._update(this._block)
+ this._block.fill(0)
}
- network = network || 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)
- 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)
+ var hash = this._update(this._block) || this._hash()
- var pubKey = new ECPubKey(Q, parsed.compressed)
- return pubKey.getAddress(network).toString() === address.toString()
+ return enc ? hash.toString(enc) : hash
}
-module.exports = {
- magicHash: magicHash,
- sign: sign,
- verify: verify
+Hash.prototype._update = function () {
+ throw new Error('_update must be implemented by subclass')
}
+module.exports = Hash
+
}).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
+},{"buffer":4}],100:[function(require,module,exports){
+var exports = module.exports = function SHA (algorithm) {
+ algorithm = algorithm.toLowerCase()
-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')
- }
-}
+ var Algorithm = exports[algorithm]
+ if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')
-function estimateFee (type) {
- return function (tx) {
- var network = networks[type]
- var baseFee = network.feePerKb
- var byteSize = tx.toBuffer().length
+ return new Algorithm()
+}
- var fee = baseFee * Math.ceil(byteSize / 1000)
- if (network.dustSoftThreshold === undefined) return fee
+exports.sha = require('./sha')
+exports.sha1 = require('./sha1')
+exports.sha224 = require('./sha224')
+exports.sha256 = require('./sha256')
+exports.sha384 = require('./sha384')
+exports.sha512 = require('./sha512')
- tx.outs.forEach(function (e) {
- if (e.value < network.dustSoftThreshold) {
- fee += baseFee
- }
- })
+},{"./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.
+ */
- return fee
- }
-}
+var inherits = require('inherits')
+var Hash = require('./hash')
-module.exports = networks
+var K = [
+ 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
+]
-},{}],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 W = new Array(80)
-function Script (buffer, chunks) {
- typeForce('Buffer', buffer)
- typeForce('Array', chunks)
+function Sha () {
+ this.init()
+ this._w = W
- this.buffer = buffer
- this.chunks = chunks
+ Hash.call(this, 64, 56)
}
-Script.fromASM = function (asm) {
- var strChunks = asm.split(' ')
- var chunks = strChunks.map(function (strChunk) {
- // opcode
- if (strChunk in opcodes) {
- return opcodes[strChunk]
+inherits(Sha, Hash)
- // data chunk
- } else {
- return new Buffer(strChunk, 'hex')
- }
- })
+Sha.prototype.init = function () {
+ this._a = 0x67452301
+ this._b = 0xefcdab89
+ this._c = 0x98badcfe
+ this._d = 0x10325476
+ this._e = 0xc3d2e1f0
- return Script.fromChunks(chunks)
+ return this
}
-Script.fromBuffer = function (buffer) {
- var chunks = []
- var i = 0
-
- while (i < buffer.length) {
- var opcode = buffer.readUInt8(i)
+function rotl5 (num) {
+ return (num << 5) | (num >>> 27)
+}
- // data chunk
- if ((opcode > opcodes.OP_0) && (opcode <= opcodes.OP_PUSHDATA4)) {
- var d = bufferutils.readPushDataInt(buffer, i)
+function rotl30 (num) {
+ return (num << 30) | (num >>> 2)
+}
- // did reading a pushDataInt fail? return non-chunked script
- if (d === null) return new Script(buffer, [])
- i += d.size
+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
+}
- // attempt to read too much data?
- if (i + d.number > buffer.length) return new Script(buffer, [])
+Sha.prototype._update = function (M) {
+ var W = this._w
- var data = buffer.slice(i, i + d.number)
- i += d.number
+ 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
- chunks.push(data)
+ 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]
- // opcode
- } else {
- chunks.push(opcode)
+ 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
- i += 1
- }
+ e = d
+ d = c
+ c = rotl30(b)
+ b = a
+ a = t
}
- return new Script(buffer, chunks)
+ 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.fromChunks = function (chunks) {
- typeForce('Array', chunks)
+Sha.prototype._hash = function () {
+ var H = new Buffer(20)
- var bufferSize = chunks.reduce(function (accum, chunk) {
- // data chunk
- if (Buffer.isBuffer(chunk)) {
- return accum + bufferutils.pushDataSize(chunk.length) + chunk.length
- }
+ 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)
- // opcode
- return accum + 1
- }, 0.0)
+ return H
+}
- var buffer = new Buffer(bufferSize)
- var offset = 0
+module.exports = Sha
- chunks.forEach(function (chunk) {
- // data chunk
- if (Buffer.isBuffer(chunk)) {
- offset += bufferutils.writePushDataInt(buffer, chunk.length, offset)
+}).call(this,require("buffer").Buffer)
+},{"./hash":99,"buffer":4,"inherits":93}],102:[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.
+ */
- chunk.copy(buffer, offset)
- offset += chunk.length
+var inherits = require('inherits')
+var Hash = require('./hash')
- // opcode
- } else {
- buffer.writeUInt8(chunk, offset)
- offset += 1
- }
- })
+var K = [
+ 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
+]
- assert.equal(offset, buffer.length, 'Could not decode chunks')
- return new Script(buffer, chunks)
-}
+var W = new Array(80)
+
+function Sha1 () {
+ 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(Sha1, Hash)
+
+Sha1.prototype.init = function () {
+ this._a = 0x67452301
+ this._b = 0xefcdab89
+ this._c = 0x98badcfe
+ this._d = 0x10325476
+ this._e = 0xc3d2e1f0
-Script.prototype.getHash = function () {
- return crypto.hash160(this.buffer)
+ return this
}
-// 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
- }))
+function rotl1 (num) {
+ return (num << 1) | (num >>> 31)
}
-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
+Sha1.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] = rotl1(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')
+Sha1.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 = Sha1
}).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}],103:[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-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 ECSignature = require('./ecsignature')
-var Script = require('./script')
+var inherits = require('inherits')
+var Sha256 = require('./sha256')
+var Hash = require('./hash')
-function isCanonicalPubKey (buffer) {
- if (!Buffer.isBuffer(buffer)) return false
+var W = new Array(64)
- try {
- ecurve.Point.decodeFrom(curve, buffer)
- } catch (e) {
- if (!(e.message.match(/Invalid sequence (length|tag)/)))
- throw e
+function Sha224 () {
+ this.init()
- return false
- }
+ this._w = W // new Array(64)
- return true
+ Hash.call(this, 64, 56)
}
-function isCanonicalSignature (buffer) {
- if (!Buffer.isBuffer(buffer)) return false
+inherits(Sha224, Sha256)
- 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
- }
+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 false
- }
+ return this
+}
- return true
+Sha224.prototype._hash = function () {
+ var H = new Buffer(28)
+
+ 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 H
}
-function isPubKeyHashInput (script) {
- return script.chunks.length === 2 &&
- isCanonicalSignature(script.chunks[0]) &&
- isCanonicalPubKey(script.chunks[1])
-}
+module.exports = Sha224
+
+}).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
+ *
+ */
+
+var inherits = require('inherits')
+var Hash = require('./hash')
+
+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
+]
+
+var W = new Array(64)
-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 Sha256 () {
+ this.init()
-function isPubKeyInput (script) {
- return script.chunks.length === 1 &&
- isCanonicalSignature(script.chunks[0])
-}
+ this._w = W // new Array(64)
-function isPubKeyOutput (script) {
- return script.chunks.length === 2 &&
- isCanonicalPubKey(script.chunks[0]) &&
- script.chunks[1] === ops.OP_CHECKSIG
+ Hash.call(this, 64, 56)
}
-function isScriptHashInput (script, allowIncomplete) {
- if (script.chunks.length < 2) return false
-
- var lastChunk = script.chunks[script.chunks.length - 1]
- if (!Buffer.isBuffer(lastChunk)) return false
-
- var scriptSig = Script.fromChunks(script.chunks.slice(0, -1))
- var redeemScript = Script.fromBuffer(lastChunk)
+inherits(Sha256, Hash)
- // is redeemScript a valid script?
- if (redeemScript.chunks.length === 0) return false
+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 classifyInput(scriptSig, allowIncomplete) === classifyOutput(redeemScript)
+ return this
}
-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
+function ch (x, y, z) {
+ return z ^ (x & (y ^ z))
}
-// 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
-
- if (allowIncomplete) {
- return script.chunks.slice(1).every(function (chunk) {
- return chunk === ops.OP_0 || isCanonicalSignature(chunk)
- })
- }
-
- return script.chunks.slice(1).every(isCanonicalSignature)
+function maj (x, y, z) {
+ return (x & y) | (z & (x | y))
}
-function isMultisigOutput (script) {
- if (script.chunks.length < 4) return false
- if (script.chunks[script.chunks.length - 1] !== ops.OP_CHECKMULTISIG) return false
-
- 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
-
- 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 m = mOp - (ops.OP_1 - 1)
- var n = nOp - (ops.OP_1 - 1)
- if (n < m) return false
+function sigma0 (x) {
+ return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10)
+}
- var pubKeys = script.chunks.slice(1, -2)
- if (n < pubKeys.length) return false
+function sigma1 (x) {
+ return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7)
+}
- return pubKeys.every(isCanonicalPubKey)
+function gamma0 (x) {
+ return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3)
}
-function isNullDataOutput (script) {
- return script.chunks[0] === ops.OP_RETURN
+function gamma1 (x) {
+ return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10)
}
-function classifyOutput (script) {
- typeForce('Script', script)
+Sha256.prototype._update = function (M) {
+ var W = this._w
- 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'
- }
+ 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
- return 'nonstandard'
-}
+ 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 classifyInput (script, allowIncomplete) {
- typeForce('Script', script)
+ 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
- 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 = g
+ g = f
+ f = e
+ e = (d + T1) | 0
+ d = c
+ c = b
+ b = a
+ a = (T1 + T2) | 0
}
- return 'nonstandard'
-}
-
-// Standard Script Templates
-// {pubKey} OP_CHECKSIG
-function pubKeyOutput (pubKey) {
- return Script.fromChunks([
- pubKey.toBuffer(),
- ops.OP_CHECKSIG
- ])
+ 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
}
-// 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
- ])
-}
+Sha256.prototype._hash = function () {
+ var H = new Buffer(32)
-// OP_HASH160 {scriptHash} OP_EQUAL
-function scriptHashOutput (hash) {
- typeForce('Buffer', hash)
+ 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)
- return Script.fromChunks([
- ops.OP_HASH160,
- hash,
- ops.OP_EQUAL
- ])
+ return H
}
-// m [pubKeys ...] n OP_CHECKMULTISIG
-function multisigOutput (m, pubKeys) {
- typeForce(['ECPubKey'], pubKeys)
-
- assert(pubKeys.length >= m, 'Not enough pubKeys provided')
+module.exports = Sha256
- var pubKeyBuffers = pubKeys.map(function (pubKey) {
- return pubKey.toBuffer()
- })
- var n = pubKeys.length
+}).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 Script.fromChunks([].concat(
- (ops.OP_1 - 1) + m,
- pubKeyBuffers,
- (ops.OP_1 - 1) + n,
- ops.OP_CHECKMULTISIG
- ))
-}
+var W = new Array(160)
-// {signature}
-function pubKeyInput (signature) {
- typeForce('Buffer', signature)
+function Sha384 () {
+ this.init()
+ this._w = W
- return Script.fromChunks([signature])
+ Hash.call(this, 128, 112)
}
-// {signature} {pubKey}
-function pubKeyHashInput (signature, pubKey) {
- typeForce('Buffer', signature)
+inherits(Sha384, SHA512)
- return Script.fromChunks([signature, pubKey.toBuffer()])
-}
+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
-// <scriptSig> {serialized scriptPubKey script}
-function scriptHashInput (scriptSig, scriptPubKey) {
- return Script.fromChunks([].concat(
- scriptSig.chunks,
- scriptPubKey.toBuffer()
- ))
-}
+ this._al = 0xc1059ed8
+ this._bl = 0x367cd507
+ this._cl = 0x3070dd17
+ this._dl = 0xf70e5939
+ this._el = 0xffc00b31
+ this._fl = 0x68581511
+ this._gl = 0x64f98fa7
+ this._hl = 0xbefa4fa4
-// OP_0 [signatures ...]
-function multisigInput (signatures, scriptPubKey) {
- if (scriptPubKey) {
- assert(isMultisigOutput(scriptPubKey))
+ return this
+}
- 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)
+Sha384.prototype._hash = function () {
+ var H = new Buffer(48)
- assert(signatures.length >= m, 'Not enough signatures provided')
- assert(signatures.length <= n, 'Too many signatures provided')
+ function writeInt64BE (h, l, offset) {
+ H.writeInt32BE(h, offset)
+ H.writeInt32BE(l, offset + 4)
}
- return Script.fromChunks([].concat(ops.OP_0, signatures))
-}
+ 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)
-function nullDataOutput (data) {
- return Script.fromChunks([ops.OP_RETURN, data])
+ return H
}
-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
-}
+module.exports = Sha384
}).call(this,require("buffer").Buffer)
-},{"./ecsignature":62,"./opcodes":67,"./script":68,"assert":5,"buffer":7,"ecurve":49,"typeforce":53}],70:[function(require,module,exports){
+},{"./hash":99,"./sha512":106,"buffer":4,"inherits":93}],106:[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 = []
-}
-
-Transaction.DEFAULT_SEQUENCE = 0xffffffff
-Transaction.SIGHASH_ALL = 0x01
-Transaction.SIGHASH_NONE = 0x02
-Transaction.SIGHASH_SINGLE = 0x03
-Transaction.SIGHASH_ANYONECANPAY = 0x80
-
-Transaction.fromBuffer = function (buffer, __disableAssert) {
- 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 readUInt64 () {
- var i = bufferutils.readUInt64LE(buffer, offset)
- offset += 8
- return i
- }
-
- function readVarInt () {
- var vi = bufferutils.readVarInt(buffer, offset)
- offset += vi.size
- return vi.number
- }
+var inherits = require('inherits')
+var Hash = require('./hash')
- function readScript () {
- return Script.fromBuffer(readSlice(readVarInt()))
- }
+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 readGenerationScript () {
- return new Script(readSlice(readVarInt()), [])
- }
+var W = new Array(160)
- var tx = new Transaction()
- tx.version = readUInt32()
+function Sha512 () {
+ this.init()
+ this._w = W
- 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()
- })
- }
- }
+ Hash.call(this, 128, 112)
+}
- var voutLen = readVarInt()
- for (i = 0; i < voutLen; ++i) {
- tx.outs.push({
- value: readUInt64(),
- script: readScript()
- })
- }
+inherits(Sha512, Hash)
- tx.locktime = readUInt32()
+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
- if (!__disableAssert) {
- assert.equal(offset, buffer.length, 'Transaction has unexpected data')
- }
+ this._al = 0xf3bcc908
+ this._bl = 0x84caa73b
+ this._cl = 0xfe94f82b
+ this._dl = 0x5f1d36f1
+ this._el = 0xade682d1
+ this._fl = 0x2b3e6c1f
+ this._gl = 0xfb41bd6b
+ this._hl = 0x137e2179
- return tx
+ return this
}
-Transaction.fromHex = function (hex) {
- return Transaction.fromBuffer(new Buffer(hex, 'hex'))
+function Ch (x, y, z) {
+ return z ^ (x & (y ^ z))
}
-Transaction.isCoinbaseHash = function (buffer) {
- return Array.prototype.every.call(buffer, function (x) {
- return x === 0
- })
+function maj (x, y, z) {
+ return (x & y) | (z & (x | y))
}
-/**
- * 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()
- }
-
- typeForce('Buffer', hash)
- typeForce('Number', index)
- typeForce('Number', sequence)
- typeForce('Script', script)
-
- assert.equal(hash.length, 32, 'Expected hash length of 32, got ' + hash.length)
-
- // Add the input and return the input's index
- return (this.ins.push({
- hash: hash,
- index: index,
- script: script,
- sequence: sequence
- }) - 1)
+function sigma0 (x, xl) {
+ return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25)
}
-/**
- * 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)
- }
-
- // Attempt to get a valid script if it's an Address object
- if (scriptPubKey instanceof Address) {
- scriptPubKey = scriptPubKey.toOutputScript()
- }
-
- typeForce('Script', scriptPubKey)
- typeForce('Number', value)
-
- // Add the output and return the output's index
- return (this.outs.push({
- script: scriptPubKey,
- value: value
- }) - 1)
+function sigma1 (x, xl) {
+ return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23)
}
-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
- }
- })
-
- newTx.outs = this.outs.map(function (txOut) {
- return {
- script: txOut.script,
- value: txOut.value
- }
- })
-
- return newTx
+function Gamma0 (x, xl) {
+ return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7)
}
-/**
- * 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, ...)')
-
- // swap the arguments (must be stored in tmp, arguments is special)
- var tmp = arguments[0]
- inIndex = arguments[1]
- prevOutScript = tmp
- }
-
- typeForce('Number', inIndex)
- typeForce('Script', prevOutScript)
- typeForce('Number', hashType)
-
- assert(inIndex >= 0, 'Invalid vin index')
- assert(inIndex < this.ins.length, 'Invalid vin index')
-
- var txTmp = this.clone()
- var hashScript = prevOutScript.without(opcodes.OP_CODESEPARATOR)
-
- // Blank out other inputs' signatures
- txTmp.ins.forEach(function (txIn) {
- txIn.script = Script.EMPTY
- })
- txTmp.ins[inIndex].script = hashScript
-
- var hashTypeModifier = hashType & 0x1f
-
- 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')
- }
-
- if (hashType & Transaction.SIGHASH_ANYONECANPAY) {
- assert(false, 'SIGHASH_ANYONECANPAY not yet supported')
- }
-
- var hashTypeBuffer = new Buffer(4)
- hashTypeBuffer.writeInt32LE(hashType, 0)
+function Gamma0l (x, xl) {
+ return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)
+}
- var buffer = Buffer.concat([txTmp.toBuffer(), hashTypeBuffer])
- return crypto.hash256(buffer)
+function Gamma1 (x, xl) {
+ return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)
}
-Transaction.prototype.getHash = function () {
- return crypto.hash256(this.toBuffer())
+function Gamma1l (x, xl) {
+ return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)
}
-Transaction.prototype.getId = function () {
- // TxHash is little-endian, we need big-endian
- return bufferutils.reverse(this.getHash()).toString('hex')
+function getCarry (a, b) {
+ return (a >>> 0) < (b >>> 0) ? 1 : 0
}
-Transaction.prototype.toBuffer = function () {
- function scriptSize (script) {
- var length = script.buffer.length
+Sha512.prototype._update = function (M) {
+ var W = this._w
- return bufferutils.varIntSize(length) + length
- }
+ 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
- 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)
- )
+ 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
- var offset = 0
- function writeSlice (slice) {
- slice.copy(buffer, offset)
- offset += slice.length
+ 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)
- function writeUInt32 (i) {
- buffer.writeUInt32LE(i, offset)
- offset += 4
- }
+ xh = W[i - 2 * 2]
+ xl = W[i - 2 * 2 + 1]
+ var gamma1 = Gamma1(xh, xl)
+ var gamma1l = Gamma1l(xl, xh)
- function writeUInt64 (i) {
- bufferutils.writeUInt64LE(buffer, i, offset)
- offset += 8
- }
+ // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
+ var Wi7h = W[i - 7 * 2]
+ var Wi7l = W[i - 7 * 2 + 1]
- function writeVarInt (i) {
- var n = bufferutils.writeVarInt(buffer, i, offset)
- offset += n
- }
+ var Wi16h = W[i - 16 * 2]
+ var Wi16l = W[i - 16 * 2 + 1]
- writeUInt32(this.version)
- writeVarInt(this.ins.length)
+ 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
- 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] = Wih
+ W[i + 1] = Wil
+ }
- writeVarInt(this.outs.length)
- this.outs.forEach(function (txOut) {
- writeUInt64(txOut.value)
- writeVarInt(txOut.script.buffer.length)
- writeSlice(txOut.script.buffer)
- })
+ for (var j = 0; j < 160; j += 2) {
+ Wih = W[j]
+ Wil = W[j + 1]
- writeUInt32(this.locktime)
+ var majh = maj(ah, bh, ch)
+ var majl = maj(al, bl, cl)
- return buffer
-}
+ var sigma0h = sigma0(ah, al)
+ var sigma0l = sigma0(al, ah)
+ var sigma1h = sigma1(eh, el)
+ var sigma1l = sigma1(el, eh)
-Transaction.prototype.toHex = function () {
- return this.toBuffer().toString('hex')
-}
+ // t1 = h + sigma1 + ch + K[j] + W[j]
+ var Kih = K[j]
+ var Kil = K[j + 1]
-Transaction.prototype.setInputScript = function (index, script) {
- typeForce('Number', index)
- typeForce('Script', script)
+ var chh = Ch(eh, fh, gh)
+ var chl = Ch(el, fl, gl)
- this.ins[index].script = script
-}
+ 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
+
+ // t2 = sigma0 + maj
+ var t2l = (sigma0l + majl) | 0
+ var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0
-// FIXME: remove in 2.x.y
-Transaction.prototype.sign = function (index, privKey, hashType) {
- console.warn('Transaction.prototype.sign is deprecated. Use TransactionBuilder instead.')
+ 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 prevOutScript = privKey.pub.getAddress().toOutputScript()
- var signature = this.signInput(index, prevOutScript, privKey, hashType)
+ 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
- var scriptSig = scripts.pubKeyHashInput(signature, privKey.pub)
- this.setInputScript(index, scriptSig)
+ 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.signInput = function (index, prevOutScript, privKey, hashType) {
- console.warn('Transaction.prototype.signInput is deprecated. Use TransactionBuilder instead.')
-
- hashType = hashType || Transaction.SIGHASH_ALL
-
- var hash = this.hashForSignature(index, prevOutScript, hashType)
- var signature = privKey.sign(hash)
-
- return signature.toScriptSignature(hashType)
-}
+Sha512.prototype._hash = function () {
+ var H = new Buffer(64)
-// FIXME: remove in 2.x.y
-Transaction.prototype.validateInput = function (index, prevOutScript, pubKey, buffer) {
- console.warn('Transaction.prototype.validateInput is deprecated. Use TransactionBuilder instead.')
+ 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')
+ function _object (value, strict) {
+ if (!NATIVE.Object(value)) return false
+ if (NATIVE.Nil(value)) return false
- // 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')
-
- 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 Wallet (seed, network) {
- console.warn('Wallet is deprecated and will be removed in 2.0.0, see #296')
-
- 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)
+function compile (type) {
+ if (NATIVE.String(type)) {
+ if (type[0] === '?') return TYPES.maybe(compile(type.slice(1)))
- me.addresses = []
- me.changeAddresses = []
+ return NATIVE[type] || TYPES.quacksLike(type)
+ } else if (type && NATIVE.Object(type)) {
+ if (NATIVE.Array(type)) return TYPES.arrayOf(compile(type[0]))
- 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)
+function typeforce (type, value, strict, surrogate) {
+ if (NATIVE.Function(type)) {
+ if (type(value, strict)) return true
- 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)
- }
-
- 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())
+ if (!buffer) buffer = new Buffer(encodingLength(number))
+ if (!Buffer.isBuffer(buffer)) throw new TypeError('buffer must be a Buffer instance')
+ if (!offset) offset = 0
- return this.getReceiveAddress()
-}
-
-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
+function encodingLength (number) {
+ checkUInt53(number)
- 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,
-
- // 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.namecoin = {
+bitcoinjs.bitcoin.networks.maza = {
+ messagePrefix: "unused",
+ bip32: {
+ public: 0x0488b21e,
+ private: 0x0488ade4
+ },
+ pubKeyHash: 0x32,
+ scriptHash: 0x09,
+ wif: 0xe0,
+};
+
+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
+ },
+ pubKeyHash: 0x26,
+ scriptHash: 0x05,
+ wif: 0xa6,
+};
+
+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,
};
+bitcoinjs.bitcoin.networks.slimcoin = {
+ messagePrefix: "unused",
+ bip32: {
+ public: 0xef6adf10,
+ private: 0xef69ea80
+ },
+ pubKeyHash: 0x3f,
+ scriptHash: 0x7d,
+ wif: 0x46,
+};
+
+bitcoinjs.bitcoin.networks.slimcointn = {
+ messagePrefix: "unused",
+ bip32: {
+ public: 0x043587CF,
+ private: 0x04358394
+ },
+ pubKeyHash: 0x6f,
+ scriptHash: 0xc4,
+ 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,
+}
+
+bitcoinjs.bitcoin.networks.myriadcoin = {
+ messagePrefix: "unused",
+ bip32: {
+ public: 0x0488b21e,
+ private: 0x0488ade4
+ },
+ pubKeyHash: 0x32,
+ scriptHash: 0x00, // TODO set this correctly
+ wif: 0xb2,
+};
+
+bitcoinjs.bitcoin.networks.pivx = {
+ messagePrefix: "unused",
+ bip32: {
+ public: 0x022d2533,
+ private: 0x0221312b
+ },
+ pubKeyHash: 0x1e,
+ scriptHash: 0x0d,
+ wif: 0xd4,
+};
+
+bitcoinjs.bitcoin.networks.pivxtestnet = {
+ messagePrefix: "unused",
+ bip32: {
+ public: 0x3a8061a0,
+ private: 0x3a805837
+ },
+ pubKeyHash: 0x8b,
+ scriptHash: 0x13,
+ wif: 0xef,
+};
</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
self.toSeed = function(mnemonic, passphrase) {
passphrase = passphrase || '';
- mnemonic = self.joinWords(self.splitWords(self.normalizeString(mnemonic))); // removes blanks
+ mnemonic = self.joinWords(self.splitWords(mnemonic)); // removes duplicate blanks
+ var mnemonicNormalized = self.normalizeString(mnemonic);
passphrase = self.normalizeString(passphrase)
passphrase = "mnemonic" + passphrase;
- var mnemonicBits = sjcl.codec.utf8String.toBits(mnemonic);
+ var mnemonicBits = sjcl.codec.utf8String.toBits(mnemonicNormalized);
var passphraseBits = sjcl.codec.utf8String.toBits(passphrase);
var result = sjcl.misc.pbkdf2(mnemonicBits, passphraseBits, PBKDF2_ROUNDS, 512, hmacSHA512);
var hashHex = sjcl.codec.hex.fromBits(result);
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 delayedPhraseChanged() {
hideValidationError();
+ seed = null;
+ bip32RootKey = null;
+ bip32ExtendedKey = null;
+ clearAddressesList();
showPending();
if (phraseChangeTimeoutEvent != null) {
clearTimeout(phraseChangeTimeoutEvent);
function phraseChanged() {
showPending();
- hideValidationError();
setMnemonicLanguage();
// Get the mnemonic phrase
var phrase = DOM.phrase.val();
var passphrase = DOM.passphrase.val();
calcBip32RootKeyFromSeed(phrase, passphrase);
calcForDerivationPath();
- hidePending();
}
function delayedEntropyChanged() {
}
function calcForDerivationPath() {
- showPending();
+ clearDerivedKeys();
clearAddressesList();
- hideValidationError();
+ showPending();
+ // 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 generateClicked() {
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();
for (var i=0; i<rows.length; i++) {
rows[i].shouldGenerate = false;
}
+ hidePending();
}
for (var i=0; i<total; i++) {
var index = i + start;
- rows.push(new TableRow(index));
+ var isLast = i == total - 1;
+ rows.push(new TableRow(index, isLast));
}
})());
}
- function TableRow(index) {
+ function TableRow(index, isLast) {
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);
+ if (isLast) {
+ hidePending();
+ }
}, 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) {
var option = $("<option>");
option.attr("value", i);
option.text(network.name);
+ if (network.name == "BTC - Bitcoin") {
+ option.prop("selected", true);
+ }
DOM.phraseNetwork.append(option);
}
}
}
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: "BCH - Bitcoin Cash",
+ bip49available: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.bitcoin;
+ setHdCoin(145);
+ },
+ },
+ {
+ name: "BTC - Bitcoin",
+ bip49available: true,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.bitcoin;
+ setHdCoin(0);
+ },
+ },
+ {
+ name: "BTC - Bitcoin Testnet",
+ bip49available: true,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.testnet;
+ setHdCoin(1);
+ },
+ },
+ {
+ name: "CLAM - Clams",
+ bip49available: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.clam;
+ setHdCoin(23);
+ },
+ },
+ {
+ name: "CRW - Crown",
+ bip49available: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.crown;
+ setHdCoin(72);
+ },
+ },
+ {
+ name: "DASH - Dash",
+ bip49available: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.dash;
+ setHdCoin(5);
+ },
+ },
+ {
+ name: "DASH - Dash Testnet",
+ bip49available: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.dashtn;
+ setHdCoin(1);
+ },
+ },
+ {
+ name: "DOGE - Dogecoin",
+ bip49available: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.dogecoin;
+ setHdCoin(3);
+ },
+ },
+ {
+ name: "ETH - Ethereum",
+ bip49available: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.bitcoin;
+ setHdCoin(60);
+ },
+ },
+ {
+ name: "GAME - GameCredits",
+ bip49available: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.game;
+ setHdCoin(101);
+ },
+ },
+ {
+ name: "JBS - Jumbucks",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.bitcoin;
- DOM.bip44coin.val(0);
+ network = bitcoinjs.bitcoin.networks.jumbucks;
+ setHdCoin(26);
},
},
{
- name: "Bitcoin Testnet",
+ name: "LTC - Litecoin",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.testnet;
- DOM.bip44coin.val(1);
+ network = bitcoinjs.bitcoin.networks.litecoin;
+ setHdCoin(2);
},
},
{
- name: "CLAM",
+ name: "MAZA - Maza",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.clam;
- DOM.bip44coin.val(23);
+ network = bitcoinjs.bitcoin.networks.maza;
+ setHdCoin(13);
},
},
+
{
- name: "Dogecoin",
+ name: "NMC - Namecoin",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.dogecoin;
- DOM.bip44coin.val(3);
+ network = bitcoinjs.bitcoin.networks.namecoin;
+ setHdCoin(7);
},
},
{
- name: "DASH",
+ name: "PIVX - PIVX",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.dash;
- DOM.bip44coin.val(5);
+ network = bitcoinjs.bitcoin.networks.pivx;
+ setHdCoin(119);
},
},
{
- name: "Ethereum",
+ name: "PIVX - PIVX Testnet",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.bitcoin;
- DOM.bip44coin.val(60);
+ network = bitcoinjs.bitcoin.networks.pivxtestnet;
+ setHdCoin(1);
},
},
{
- name: "Jumbucks",
+ name: "PPC - Peercoin",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.jumbucks;
- DOM.bip44coin.val(26);
+ network = bitcoinjs.bitcoin.networks.peercoin;
+ setHdCoin(6);
},
},
{
- name: "Litecoin",
+ name: "SDC - ShadowCash",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.litecoin;
- DOM.bip44coin.val(2);
+ network = bitcoinjs.bitcoin.networks.shadow;
+ setHdCoin(35);
},
},
{
- name: "Namecoin",
+ name: "SDC - ShadowCash Testnet",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.namecoin;
- DOM.bip44coin.val(7);
+ network = bitcoinjs.bitcoin.networks.shadowtn;
+ setHdCoin(1);
},
},
{
- name: "Peercoin",
+ name: "SLM - Slimcoin",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.peercoin;
- DOM.bip44coin.val(6);
+ network = bitcoinjs.bitcoin.networks.slimcoin;
+ setHdCoin(63);
},
},
{
- name: "ShadowCash",
+ name: "SLM - Slimcoin Testnet",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.shadow;
- DOM.bip44coin.val(35);
+ network = bitcoinjs.bitcoin.networks.slimcointn;
+ setHdCoin(111);
},
},
{
- name: "ShadowCash Testnet",
+ name: "VIA - Viacoin",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.shadowtn;
- DOM.bip44coin.val(1);
+ network = bitcoinjs.bitcoin.networks.viacoin;
+ setHdCoin(14);
},
},
{
- name: "Viacoin",
+ name: "VIA - Viacoin Testnet",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.viacoin;
- DOM.bip44coin.val(14);
+ network = bitcoinjs.bitcoin.networks.viacointestnet;
+ setHdCoin(1);
},
},
{
- name: "Viacoin Testnet",
+ name: "XMY - Myriadcoin",
+ bip49available: false,
onSelect: function() {
- network = bitcoin.networks.viacointestnet;
- DOM.bip44coin.val(1);
+ network = bitcoinjs.bitcoin.networks.myriadcoin;
+ setHdCoin(90);
},
},
+ {
+ name: "XRP - Ripple",
+ bip49available: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.bitcoin;
+ setHdCoin(144);
+ },
+ }
]
var clients = [
projects / perso / Immae / Projets / Cryptomonnaies / BIP39.git / blobdiff