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">v0.2.5</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>
<textarea id="root-key" class="root-key form-control" data-show-qr></textarea>
</div>
</div>
+ <div class="form-group litecoin-ltub-container hidden">
+ <label for="litecoin-use-ltub" class="col-sm-2 control-label" data-translate>Prefixes</label>
+ <div class="col-sm-10 checkbox">
+ <label>
+ <input type="checkbox" id="litecoin-use-ltub" class="litecoin-use-ltub">
+ Use <code>Ltpv / Ltub</code> instead of <code>xprv / xpub</code>
+ </label>
+ </div>
+ </div>
</form>
</div>
</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">
<span data-translate>Use hardened addresses</span>
</label>
</div>
+ <div class="form-group">
+ <div class="col-sm-2"></div>
+ <label class="col-sm-10">
+ <input class="p2wpkh-nested-in-p2sh" type="checkbox">
+ <span data-translate>Use SegWit addresses (ie P2WPKH Nested In P2SH)</span>
+ </label>
+ </div>
<div class="form-group">
<label for="core-path" class="col-sm-2 control-label" data-translate>Bitcoin Core</label>
<div class="col-sm-10">
</div>
</form>
</div>
+ <div id="bip49" class="tab-pane">
+ <form class="form-horizontal" role="form">
+ <br>
+ <div class="unavailable hidden">
+ <div class="form-group">
+ <div class="col-sm-2"></div>
+ <div class="col-sm-10">
+ <p data-translate>BIP49 is unavailable for this coin.</p>
+ </div>
+ </div>
+ </div>
+ <div class="available">
+ <div class="col-sm-2"></div>
+ <div class="col-sm-10">
+ <p data-translate-html>
+ For more info see the
+ <a href="https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki" target="_blank">BIP49 spec</a>.
+ </p>
+ </div>
+ <div class="form-group">
+ <label for="purpose" class="col-sm-2 control-label">
+ <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#purpose" target="_blank" data-translate>Purpose</a>
+ </label>
+ <div class="col-sm-10">
+ <input id="purpose" type="text" class="purpose form-control" value="49" readonly>
+ </div>
+ </div>
+ <div class="form-group">
+ <label for="coin" class="col-sm-2 control-label">
+ <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#registered-coin-types" target="_blank" data-translate>Coin</a>
+ </label>
+ <div class="col-sm-10">
+ <input id="coin" type="text" class="coin form-control" value="0" readonly>
+ </div>
+ </div>
+ <div class="form-group">
+ <label for="account" class="col-sm-2 control-label">
+ <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#account" target="_blank" data-translate>Account</a>
+ </label>
+ <div class="col-sm-10">
+ <input id="account" type="text" class="account form-control" value="0">
+ </div>
+ </div>
+ <div class="form-group">
+ <label for="change" class="col-sm-2 control-label">
+ <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#change" target="_blank" data-translate>External / Internal</a>
+ </label>
+ <div class="col-sm-10">
+ <input id="change" type="text" class="change form-control" value="0">
+ </div>
+ </div>
+ <div class="form-group">
+ <label class="col-sm-2 control-label">
+ </label>
+ <div class="col-sm-10">
+ <p data-translate>The account extended keys can be used for importing to most BIP49 compatible wallets.</p>
+ </div>
+ </div>
+ <div class="form-group">
+ <label for="account-xprv" class="col-sm-2 control-label">
+ <span data-translate>Account Extended Private Key</span>
+ </label>
+ <div class="col-sm-10">
+ <textarea id="account-xprv" type="text" class="account-xprv form-control" readonly data-show-qr></textarea>
+ </div>
+ </div>
+ <div class="form-group">
+ <label for="account-xpub" class="col-sm-2 control-label">
+ <span data-translate>Account Extended Public Key</span>
+ </label>
+ <div class="col-sm-10">
+ <textarea id="account-xpub" type="text" class="account-xpub form-control" readonly data-show-qr></textarea>
+ </div>
+ </div>
+ <div class="form-group">
+ <label class="col-sm-2 control-label">
+ </label>
+ <div class="col-sm-10">
+ <p data-translate>The BIP32 derivation path and extended keys are the basis for the derived addresses.</p>
+ </div>
+ </div>
+ <div class="form-group">
+ <label for="bip49-path" class="col-sm-2 control-label" data-translate>BIP32 Derivation Path</label>
+ <div class="col-sm-10">
+ <input id="bip49-path" type="text" class="path form-control" value="m/49'/0'/0'/0" readonly="readonly">
+ </div>
+ </div>
+ </div>
+ </form>
+ </div>
</div>
<form class="form-horizontal" role="form">
<div class="form-group">
return eval('new t(' + a.map(function(_, i) { return 'a[' + i + ']'; }).join(',') + ')');
}
</script>
- <script>(function (root) {
- "use strict";
-
-/***** unorm.js *****/
+ <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'
-/*
- * 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 $
- */
+exports.byteLength = byteLength
+exports.toByteArray = toByteArray
+exports.fromByteArray = fromByteArray
- 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 lookup = []
+var revLookup = []
+var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
- var UChar = function(cp, feature){
- this.codepoint = cp;
- this.feature = feature;
- };
+var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+for (var i = 0, len = code.length; i < len; ++i) {
+ lookup[i] = code[i]
+ revLookup[code.charCodeAt(i)] = i
+}
- // Strategies
- var cache = {};
- var cacheCounter = [];
- for (var i = 0; i <= 0xFF; ++i){
- cacheCounter[i] = 0;
- }
+revLookup['-'.charCodeAt(0)] = 62
+revLookup['_'.charCodeAt(0)] = 63
- 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 placeHoldersCount (b64) {
+ var len = b64.length
+ if (len % 4 > 0) {
+ throw new Error('Invalid string. Length must be a multiple of 4')
+ }
- 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]);
- }
+ // 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
+}
- var SIndex = cp - SBase;
- var TIndex = SIndex % TCount;
- var feature = [];
- if(TIndex !== 0){
- feature[0] = [SBase + SIndex - TIndex, TBase + TIndex];
- } else {
- feature[0] = [LBase + Math.floor(SIndex / NCount), VBase + Math.floor((SIndex % NCount) / TCount)];
- feature[2] = {};
- for (j = 1; j < TCount; ++j){
- feature[2][TBase + j] = cp + j;
- }
- }
- return new UChar(cp, feature);
- }
- function fromCpFilter(next, cp, needFeature){
- return cp < 60 || 13311 < cp && cp < 42607 ? new UChar(cp, DEFAULT_FEATURE) : next(cp, needFeature);
- }
+function byteLength (b64) {
+ // base64 is 4/3 + up to two characters of the original data
+ return b64.length * 3 / 4 - placeHoldersCount(b64)
+}
- var strategies = [fromCpFilter, fromCache, fromCpOnly, fromRuleBasedJamo, fromData];
+function toByteArray (b64) {
+ var i, j, l, tmp, placeHolders, arr
+ var len = b64.length
+ placeHolders = placeHoldersCount(b64)
- UChar.fromCharCode = strategies.reduceRight(function (next, strategy) {
- return function (cp, needFeature) {
- return strategy(next, cp, needFeature);
- };
- }, null);
+ arr = new Arr(len * 3 / 4 - placeHolders)
- UChar.isHighSurrogate = function(cp){
- return cp >= 0xD800 && cp <= 0xDBFF;
- };
- UChar.isLowSurrogate = function(cp){
- return cp >= 0xDC00 && cp <= 0xDFFF;
- };
+ // if there are placeholders, only get up to the last complete 4 chars
+ l = placeHolders > 0 ? len - 4 : len
- UChar.prototype.prepFeature = function(){
- if(!this.feature){
- this.feature = UChar.fromCharCode(this.codepoint, true).feature;
- }
- };
+ var L = 0
- 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);
- }
- };
+ for (i = 0, j = 0; i < l; i += 4, j += 3) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
+ arr[L++] = (tmp >> 16) & 0xFF
+ arr[L++] = (tmp >> 8) & 0xFF
+ arr[L++] = tmp & 0xFF
+ }
- UChar.prototype.getDecomp = function(){
- this.prepFeature();
- return this.feature[0] || null;
- };
+ if (placeHolders === 2) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
+ arr[L++] = tmp & 0xFF
+ } else if (placeHolders === 1) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
+ arr[L++] = (tmp >> 8) & 0xFF
+ arr[L++] = tmp & 0xFF
+ }
- UChar.prototype.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;
- };
+ return arr
+}
- var UCharIterator = function(str){
- this.str = str;
- this.cursor = 0;
- };
- UCharIterator.prototype.next = function(){
- if(!!this.str && this.cursor < this.str.length){
- var cp = this.str.charCodeAt(this.cursor++);
- var d;
- if(UChar.isHighSurrogate(cp) && this.cursor < this.str.length && UChar.isLowSurrogate((d = this.str.charCodeAt(this.cursor)))){
- cp = (cp - 0xD800) * 0x400 + (d -0xDC00) + 0x10000;
- ++this.cursor;
- }
- return UChar.fromCharCode(cp);
- } else {
- this.str = null;
- return null;
- }
- };
+function tripletToBase64 (num) {
+ return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
+}
- var RecursDecompIterator = function(it, cano){
- this.it = it;
- this.canonical = cano;
- this.resBuf = [];
- };
+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('')
+}
- 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();
- };
+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 DecompIterator = function(it){
- this.it = it;
- this.resBuf = [];
- };
+ // 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)))
+ }
- 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();
- };
+ // 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 += '='
+ }
- var CompIterator = function(it){
- this.it = it;
- this.procBuf = [];
- this.resBuf = [];
- this.lastClass = null;
- };
+ parts.push(output)
- 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();
- };
+ return parts.join('')
+}
- 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;
- };
+},{}],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 */
- /* API functions */
- function nfd(str){
- return normalize("NFD", str);
- }
+'use strict'
- function nfkd(str){
- return normalize("NFKD", str);
- }
+var base64 = require('base64-js')
+var ieee754 = require('ieee754')
- function nfc(str){
- return normalize("NFC", str);
- }
+exports.Buffer = Buffer
+exports.SlowBuffer = SlowBuffer
+exports.INSPECT_MAX_BYTES = 50
- function nfkc(str){
- return normalize("NFKC", str);
- }
+var K_MAX_LENGTH = 0x7fffffff
+exports.kMaxLength = K_MAX_LENGTH
-/* Unicode data */
-UChar.udata={
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+/**
+ * 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.'
+ )
+}
- /***** Module to export */
- var unorm = {
- nfc: nfc,
- nfd: nfd,
- nfkc: nfkc,
- nfkd: nfkd
- };
+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
+ }
+}
- /*globals module:true,define:true*/
+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
+}
- // CommonJS
- if (typeof module === "object") {
- module.exports = unorm;
+/**
+ * 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.
+ */
- // AMD
- } else if (typeof define === "function" && define.amd) {
- define("unorm", function () {
- return unorm;
- });
+function Buffer (arg, encodingOrOffset, length) {
+ // Common case.
+ if (typeof arg === 'number') {
+ if (typeof encodingOrOffset === 'string') {
+ throw new Error(
+ 'If encoding is specified then the first argument must be a string'
+ )
+ }
+ return allocUnsafe(arg)
+ }
+ return from(arg, encodingOrOffset, length)
+}
- // Global
- } else {
- root.unorm = unorm;
- }
+// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
+if (typeof Symbol !== 'undefined' && Symbol.species &&
+ Buffer[Symbol.species] === Buffer) {
+ Object.defineProperty(Buffer, Symbol.species, {
+ value: null,
+ configurable: true,
+ enumerable: false,
+ writable: false
+ })
+}
- /***** Export as shim for String::normalize method *****/
- /*
- http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts#november_8_2013_draft_rev_21
+Buffer.poolSize = 8192 // not used by this implementation
- 21.1.3.12 String.prototype.normalize(form="NFC")
- When the normalize method is called with one argument form, the following steps are taken:
+function from (value, encodingOrOffset, length) {
+ if (typeof value === 'number') {
+ throw new TypeError('"value" argument must not be a number')
+ }
- 1. Let O be CheckObjectCoercible(this value).
- 2. Let S be ToString(O).
- 3. ReturnIfAbrupt(S).
- 4. If form is not provided or undefined let form be "NFC".
- 5. Let f be ToString(form).
- 6. ReturnIfAbrupt(f).
- 7. If f is not one of "NFC", "NFD", "NFKC", or "NFKD", then throw a RangeError Exception.
- 8. Let ns be the String value is the result of normalizing S into the normalization form named by f as specified in Unicode Standard Annex #15, UnicodeNormalizatoin Forms.
- 9. Return ns.
+ if (value instanceof ArrayBuffer) {
+ return fromArrayBuffer(value, encodingOrOffset, length)
+ }
- The length property of the normalize method is 0.
+ if (typeof value === 'string') {
+ return fromString(value, encodingOrOffset)
+ }
- *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;
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- // deletion
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- }
+ if (actual !== length) {
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+ // cause everything after the first invalid character to be ignored. (e.g.
+ // 'abxxcd' will be treated as 'ab')
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+ }
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- }
+ return buf
+}
- // copy last col value into previous (in preparation for next iteration)
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+ if (byteOffset < 0 || array.byteLength < byteOffset) {
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+ }
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- if (str2.length === 0) return cb(null, str1.length);
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+ } else {
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+ }
- // two rows
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- i, j, tmp,
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+}
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- // copy current into previous (in preparation for next iteration)
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- }
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- nextCol = i + 1;
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- }
- }
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+ return fromArrayLike(obj.data)
+ }
+ }
- // calculation
- curCol = nextCol;
+ throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
+}
- // substution
- nextCol = prevRow[j] + ( (str1.charAt(i) === str2.charAt(j)) ? 0 : 1 );
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- if (nextCol > tmp) {
- nextCol = tmp;
- }
- // deletion
- tmp = prevRow[j + 1] + 1;
- if (nextCol > tmp) {
- nextCol = tmp;
- }
+function checked (length) {
+ // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
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+ 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
+}
- // copy current into previous (in preparation for next iteration)
- prevRow[j] = curCol;
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+ if (+length != length) { // eslint-disable-line eqeqeq
+ length = 0
+ }
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+}
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+}
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- try {
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- } catch (err) {
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- }
- }
+Buffer.compare = function compare (a, b) {
+ if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
+ throw new TypeError('Arguments must be Buffers')
+ }
- // next iteration
- _defer(__calculate);
- };
+ if (a === b) return 0
- __calculate();
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+ var y = b.length
+
+ for (var i = 0, len = Math.min(x, y); i < len; ++i) {
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+ x = a[i]
+ y = b[i]
+ break
}
+ }
- };
+ if (x < y) return -1
+ if (y < x) return 1
+ return 0
+}
- // amd
- if (typeof define !== "undefined" && define !== null && define.amd) {
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+Buffer.isEncoding = function isEncoding (encoding) {
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+ case 'utf8':
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+ case 'binary':
+ case 'base64':
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return true
+ default:
+ return false
}
- // commonjs
- else if (typeof module !== "undefined" && module !== null && typeof exports !== "undefined" && module.exports === exports) {
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+}
+
+Buffer.concat = function concat (list, length) {
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- // web worker
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+ if (list.length === 0) {
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}
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}
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-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)
-
- if (a != null) {
- if ("number" == typeof a) this.fromNumber(a, b, c)
- else if (b == null && "string" != typeof a) this.fromString(a, 256)
- else this.fromString(a, b)
+ var buffer = Buffer.allocUnsafe(length)
+ var pos = 0
+ for (i = 0; i < list.length; ++i) {
+ var buf = list[i]
+ if (!Buffer.isBuffer(buf)) {
+ throw new TypeError('"list" argument must be an Array of Buffers')
+ }
+ buf.copy(buffer, pos)
+ pos += buf.length
}
+ return buffer
}
-var proto = BigInteger.prototype
+function byteLength (string, encoding) {
+ if (Buffer.isBuffer(string)) {
+ return string.length
+ }
+ if (isArrayBufferView(string) || string instanceof ArrayBuffer) {
+ return string.byteLength
+ }
+ if (typeof string !== 'string') {
+ string = '' + string
+ }
-// duck-typed isBigInteger
-proto.__bigi = require('../package.json').version
-BigInteger.isBigInteger = function (obj, check_ver) {
- return obj && obj.__bigi && (!check_ver || obj.__bigi === proto.__bigi)
+ var len = string.length
+ if (len === 0) return 0
+
+ // Use a for loop to avoid recursion
+ var loweredCase = false
+ for (;;) {
+ switch (encoding) {
+ case 'ascii':
+ case 'latin1':
+ case 'binary':
+ return len
+ case 'utf8':
+ case 'utf-8':
+ case undefined:
+ return utf8ToBytes(string).length
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return len * 2
+ case 'hex':
+ return len >>> 1
+ case 'base64':
+ return base64ToBytes(string).length
+ default:
+ if (loweredCase) return utf8ToBytes(string).length // assume utf8
+ encoding = ('' + encoding).toLowerCase()
+ loweredCase = true
+ }
+ }
}
+Buffer.byteLength = byteLength
-// Bits per digit
-var dbits
+function slowToString (encoding, start, end) {
+ var loweredCase = false
-// am: Compute w_j += (x*this_i), propagate carries,
-// c is initial carry, returns final carry.
-// c < 3*dvalue, x < 2*dvalue, this_i < dvalue
-// We need to select the fastest one that works in this environment.
+ // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
+ // property of a typed array.
-// am1: use a single mult and divide to get the high bits,
-// max digit bits should be 26 because
-// max internal value = 2*dvalue^2-2*dvalue (< 2^53)
-function am1(i, x, w, j, c, n) {
- while (--n >= 0) {
- var v = x * this[i++] + w[j] + c
- c = Math.floor(v / 0x4000000)
- w[j++] = v & 0x3ffffff
+ // This behaves neither like String nor Uint8Array in that we set start/end
+ // to their upper/lower bounds if the value passed is out of range.
+ // undefined is handled specially as per ECMA-262 6th Edition,
+ // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
+ if (start === undefined || start < 0) {
+ start = 0
}
- return c
-}
-// am2 avoids a big mult-and-extract completely.
-// Max digit bits should be <= 30 because we do bitwise ops
-// on values up to 2*hdvalue^2-hdvalue-1 (< 2^31)
-function am2(i, x, w, j, c, n) {
- var xl = x & 0x7fff,
- xh = x >> 15
- while (--n >= 0) {
- var l = this[i] & 0x7fff
- var h = this[i++] >> 15
- var m = xh * l + h * xl
- l = xl * l + ((m & 0x7fff) << 15) + w[j] + (c & 0x3fffffff)
- c = (l >>> 30) + (m >>> 15) + xh * h + (c >>> 30)
- w[j++] = l & 0x3fffffff
+ // Return early if start > this.length. Done here to prevent potential uint32
+ // coercion fail below.
+ if (start > this.length) {
+ return ''
}
- return c
-}
-// Alternately, set max digit bits to 28 since some
-// browsers slow down when dealing with 32-bit numbers.
-function am3(i, x, w, j, c, n) {
- var xl = x & 0x3fff,
- xh = x >> 14
- while (--n >= 0) {
- var l = this[i] & 0x3fff
- var h = this[i++] >> 14
- var m = xh * l + h * xl
- l = xl * l + ((m & 0x3fff) << 14) + w[j] + c
- c = (l >> 28) + (m >> 14) + xh * h
- w[j++] = l & 0xfffffff
+
+ if (end === undefined || end > this.length) {
+ end = this.length
}
- return c
-}
-// wtf?
-BigInteger.prototype.am = am1
-dbits = 26
+ if (end <= 0) {
+ return ''
+ }
-BigInteger.prototype.DB = dbits
-BigInteger.prototype.DM = ((1 << dbits) - 1)
-var DV = BigInteger.prototype.DV = (1 << dbits)
+ // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
+ end >>>= 0
+ start >>>= 0
-var BI_FP = 52
-BigInteger.prototype.FV = Math.pow(2, BI_FP)
-BigInteger.prototype.F1 = BI_FP - dbits
-BigInteger.prototype.F2 = 2 * dbits - BI_FP
+ if (end <= start) {
+ return ''
+ }
-// Digit conversions
-var BI_RM = "0123456789abcdefghijklmnopqrstuvwxyz"
-var BI_RC = new Array()
-var rr, vv
-rr = "0".charCodeAt(0)
-for (vv = 0; vv <= 9; ++vv) BI_RC[rr++] = vv
-rr = "a".charCodeAt(0)
-for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv
-rr = "A".charCodeAt(0)
-for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv
+ if (!encoding) encoding = 'utf8'
-function int2char(n) {
- return BI_RM.charAt(n)
-}
+ while (true) {
+ switch (encoding) {
+ case 'hex':
+ return hexSlice(this, start, end)
-function intAt(s, i) {
- var c = BI_RC[s.charCodeAt(i)]
- return (c == null) ? -1 : c
-}
+ case 'utf8':
+ case 'utf-8':
+ return utf8Slice(this, start, end)
-// (protected) copy this to r
-function bnpCopyTo(r) {
- for (var i = this.t - 1; i >= 0; --i) r[i] = this[i]
- r.t = this.t
- r.s = this.s
-}
+ case 'ascii':
+ return asciiSlice(this, start, end)
-// (protected) set from integer value x, -DV <= x < DV
-function bnpFromInt(x) {
- this.t = 1
- this.s = (x < 0) ? -1 : 0
- if (x > 0) this[0] = x
- else if (x < -1) this[0] = x + DV
- else this.t = 0
-}
+ case 'latin1':
+ case 'binary':
+ return latin1Slice(this, start, end)
-// return bigint initialized to value
-function nbv(i) {
- var r = new BigInteger()
- r.fromInt(i)
- return r
-}
+ case 'base64':
+ return base64Slice(this, start, end)
-// (protected) set from string and radix
-function bnpFromString(s, b) {
- var self = this
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return utf16leSlice(this, start, end)
- var k
- if (b == 16) k = 4
- else if (b == 8) k = 3
- else if (b == 256) k = 8; // byte array
- else if (b == 2) k = 1
- else if (b == 32) k = 5
- else if (b == 4) k = 2
- else {
- self.fromRadix(s, b)
- return
- }
- self.t = 0
- self.s = 0
- var i = s.length,
- mi = false,
- sh = 0
- while (--i >= 0) {
- var x = (k == 8) ? s[i] & 0xff : intAt(s, i)
- if (x < 0) {
- if (s.charAt(i) == "-") mi = true
- continue
+ default:
+ if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+ encoding = (encoding + '').toLowerCase()
+ loweredCase = true
}
- mi = false
- if (sh == 0)
- self[self.t++] = x
- else if (sh + k > self.DB) {
- self[self.t - 1] |= (x & ((1 << (self.DB - sh)) - 1)) << sh
- self[self.t++] = (x >> (self.DB - sh))
- } else
- self[self.t - 1] |= x << sh
- sh += k
- if (sh >= self.DB) sh -= self.DB
}
- if (k == 8 && (s[0] & 0x80) != 0) {
- self.s = -1
- if (sh > 0) self[self.t - 1] |= ((1 << (self.DB - sh)) - 1) << sh
+}
+
+// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
+// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
+// reliably in a browserify context because there could be multiple different
+// copies of the 'buffer' package in use. This method works even for Buffer
+// instances that were created from another copy of the `buffer` package.
+// See: https://github.com/feross/buffer/issues/154
+Buffer.prototype._isBuffer = true
+
+function swap (b, n, m) {
+ var i = b[n]
+ b[n] = b[m]
+ b[m] = i
+}
+
+Buffer.prototype.swap16 = function swap16 () {
+ var len = this.length
+ if (len % 2 !== 0) {
+ throw new RangeError('Buffer size must be a multiple of 16-bits')
}
- self.clamp()
- if (mi) BigInteger.ZERO.subTo(self, self)
+ for (var i = 0; i < len; i += 2) {
+ swap(this, i, i + 1)
+ }
+ return this
}
-// (protected) clamp off excess high words
-function bnpClamp() {
- var c = this.s & this.DM
- while (this.t > 0 && this[this.t - 1] == c)--this.t
+Buffer.prototype.swap32 = function swap32 () {
+ var len = this.length
+ if (len % 4 !== 0) {
+ throw new RangeError('Buffer size must be a multiple of 32-bits')
+ }
+ for (var i = 0; i < len; i += 4) {
+ swap(this, i, i + 3)
+ swap(this, i + 1, i + 2)
+ }
+ return this
}
-// (public) return string representation in given radix
-function bnToString(b) {
- var self = this
- if (self.s < 0) return "-" + self.negate()
- .toString(b)
- var k
- if (b == 16) k = 4
- else if (b == 8) k = 3
- else if (b == 2) k = 1
- else if (b == 32) k = 5
- else if (b == 4) k = 2
- else return self.toRadix(b)
- var km = (1 << k) - 1,
- d, m = false,
- r = "",
- i = self.t
- var p = self.DB - (i * self.DB) % k
- if (i-- > 0) {
- if (p < self.DB && (d = self[i] >> p) > 0) {
- m = true
- r = int2char(d)
- }
- while (i >= 0) {
- if (p < k) {
- d = (self[i] & ((1 << p) - 1)) << (k - p)
- d |= self[--i] >> (p += self.DB - k)
- } else {
- d = (self[i] >> (p -= k)) & km
- if (p <= 0) {
- p += self.DB
- --i
- }
- }
- if (d > 0) m = true
- if (m) r += int2char(d)
- }
+Buffer.prototype.swap64 = function swap64 () {
+ var len = this.length
+ if (len % 8 !== 0) {
+ throw new RangeError('Buffer size must be a multiple of 64-bits')
}
- return m ? r : "0"
+ for (var i = 0; i < len; i += 8) {
+ swap(this, i, i + 7)
+ swap(this, i + 1, i + 6)
+ swap(this, i + 2, i + 5)
+ swap(this, i + 3, i + 4)
+ }
+ return this
}
-// (public) -this
-function bnNegate() {
- var r = new BigInteger()
- BigInteger.ZERO.subTo(this, r)
- return r
+Buffer.prototype.toString = function toString () {
+ var length = this.length
+ if (length === 0) return ''
+ if (arguments.length === 0) return utf8Slice(this, 0, length)
+ return slowToString.apply(this, arguments)
}
-// (public) |this|
-function bnAbs() {
- return (this.s < 0) ? this.negate() : this
+Buffer.prototype.equals = function equals (b) {
+ if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
+ if (this === b) return true
+ return Buffer.compare(this, b) === 0
}
-// (public) return + if this > a, - if this < a, 0 if equal
-function bnCompareTo(a) {
- var r = this.s - a.s
- if (r != 0) return r
- var i = this.t
- r = i - a.t
- if (r != 0) return (this.s < 0) ? -r : r
- while (--i >= 0)
- if ((r = this[i] - a[i]) != 0) return r
- return 0
+Buffer.prototype.inspect = function inspect () {
+ var str = ''
+ var max = exports.INSPECT_MAX_BYTES
+ if (this.length > 0) {
+ str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
+ if (this.length > max) str += ' ... '
+ }
+ return '<Buffer ' + str + '>'
}
-// returns bit length of the integer x
-function nbits(x) {
- var r = 1,
- t
- if ((t = x >>> 16) != 0) {
- x = t
- r += 16
+Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
+ if (!Buffer.isBuffer(target)) {
+ throw new TypeError('Argument must be a Buffer')
}
- if ((t = x >> 8) != 0) {
- x = t
- r += 8
+
+ if (start === undefined) {
+ start = 0
}
- if ((t = x >> 4) != 0) {
- x = t
- r += 4
+ if (end === undefined) {
+ end = target ? target.length : 0
}
- if ((t = x >> 2) != 0) {
- x = t
- r += 2
+ if (thisStart === undefined) {
+ thisStart = 0
}
- if ((t = x >> 1) != 0) {
- x = t
- r += 1
+ if (thisEnd === undefined) {
+ thisEnd = this.length
}
- return r
-}
-// (public) return the number of bits in "this"
-function bnBitLength() {
- if (this.t <= 0) return 0
- return this.DB * (this.t - 1) + nbits(this[this.t - 1] ^ (this.s & this.DM))
-}
+ if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
+ throw new RangeError('out of range index')
+ }
-// (public) return the number of bytes in "this"
-function bnByteLength() {
- return this.bitLength() >> 3
-}
+ if (thisStart >= thisEnd && start >= end) {
+ return 0
+ }
+ if (thisStart >= thisEnd) {
+ return -1
+ }
+ if (start >= end) {
+ return 1
+ }
-// (protected) r = this << n*DB
-function bnpDLShiftTo(n, r) {
- var i
- for (i = this.t - 1; i >= 0; --i) r[i + n] = this[i]
- for (i = n - 1; i >= 0; --i) r[i] = 0
- r.t = this.t + n
- r.s = this.s
-}
+ start >>>= 0
+ end >>>= 0
+ thisStart >>>= 0
+ thisEnd >>>= 0
-// (protected) r = this >> n*DB
-function bnpDRShiftTo(n, r) {
- for (var i = n; i < this.t; ++i) r[i - n] = this[i]
- r.t = Math.max(this.t - n, 0)
- r.s = this.s
-}
+ if (this === target) return 0
-// (protected) r = this << n
-function bnpLShiftTo(n, r) {
- var self = this
- var bs = n % self.DB
- var cbs = self.DB - bs
- var bm = (1 << cbs) - 1
- var ds = Math.floor(n / self.DB),
- c = (self.s << bs) & self.DM,
- i
- for (i = self.t - 1; i >= 0; --i) {
- r[i + ds + 1] = (self[i] >> cbs) | c
- c = (self[i] & bm) << bs
- }
- for (i = ds - 1; i >= 0; --i) r[i] = 0
- r[ds] = c
- r.t = self.t + ds + 1
- r.s = self.s
- r.clamp()
-}
+ var x = thisEnd - thisStart
+ var y = end - start
+ var len = Math.min(x, y)
-// (protected) r = this >> n
-function bnpRShiftTo(n, r) {
- var self = this
- r.s = self.s
- var ds = Math.floor(n / self.DB)
- if (ds >= self.t) {
- r.t = 0
- return
- }
- var bs = n % self.DB
- var cbs = self.DB - bs
- var bm = (1 << bs) - 1
- r[0] = self[ds] >> bs
- for (var i = ds + 1; i < self.t; ++i) {
- r[i - ds - 1] |= (self[i] & bm) << cbs
- r[i - ds] = self[i] >> bs
+ var thisCopy = this.slice(thisStart, thisEnd)
+ var targetCopy = target.slice(start, end)
+
+ for (var i = 0; i < len; ++i) {
+ if (thisCopy[i] !== targetCopy[i]) {
+ x = thisCopy[i]
+ y = targetCopy[i]
+ break
+ }
}
- if (bs > 0) r[self.t - ds - 1] |= (self.s & bm) << cbs
- r.t = self.t - ds
- r.clamp()
+
+ if (x < y) return -1
+ if (y < x) return 1
+ return 0
}
-// (protected) r = this - a
-function bnpSubTo(a, r) {
- var self = this
- var i = 0,
- c = 0,
- m = Math.min(a.t, self.t)
- while (i < m) {
- c += self[i] - a[i]
- r[i++] = c & self.DM
- c >>= self.DB
+// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
+// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
+//
+// Arguments:
+// - buffer - a Buffer to search
+// - val - a string, Buffer, or number
+// - byteOffset - an index into `buffer`; will be clamped to an int32
+// - encoding - an optional encoding, relevant is val is a string
+// - dir - true for indexOf, false for lastIndexOf
+function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
+ // Empty buffer means no match
+ if (buffer.length === 0) return -1
+
+ // Normalize byteOffset
+ if (typeof byteOffset === 'string') {
+ encoding = byteOffset
+ byteOffset = 0
+ } else if (byteOffset > 0x7fffffff) {
+ byteOffset = 0x7fffffff
+ } else if (byteOffset < -0x80000000) {
+ byteOffset = -0x80000000
}
- if (a.t < self.t) {
- c -= a.s
- while (i < self.t) {
- c += self[i]
- r[i++] = c & self.DM
- c >>= self.DB
+ byteOffset = +byteOffset // Coerce to Number.
+ if (numberIsNaN(byteOffset)) {
+ // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
+ byteOffset = dir ? 0 : (buffer.length - 1)
+ }
+
+ // Normalize byteOffset: negative offsets start from the end of the buffer
+ if (byteOffset < 0) byteOffset = buffer.length + byteOffset
+ if (byteOffset >= buffer.length) {
+ if (dir) return -1
+ else byteOffset = buffer.length - 1
+ } else if (byteOffset < 0) {
+ if (dir) byteOffset = 0
+ else return -1
+ }
+
+ // Normalize val
+ if (typeof val === 'string') {
+ val = Buffer.from(val, encoding)
+ }
+
+ // Finally, search either indexOf (if dir is true) or lastIndexOf
+ if (Buffer.isBuffer(val)) {
+ // Special case: looking for empty string/buffer always fails
+ if (val.length === 0) {
+ return -1
}
- c += self.s
- } else {
- c += self.s
- while (i < a.t) {
- c -= a[i]
- r[i++] = c & self.DM
- c >>= self.DB
+ return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
+ } else if (typeof val === 'number') {
+ val = val & 0xFF // Search for a byte value [0-255]
+ if (typeof Uint8Array.prototype.indexOf === 'function') {
+ if (dir) {
+ return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
+ } else {
+ return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
+ }
}
- c -= a.s
+ return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
}
- r.s = (c < 0) ? -1 : 0
- if (c < -1) r[i++] = self.DV + c
- else if (c > 0) r[i++] = c
- r.t = i
- r.clamp()
-}
-// (protected) r = this * a, r != this,a (HAC 14.12)
-// "this" should be the larger one if appropriate.
-function bnpMultiplyTo(a, r) {
- var x = this.abs(),
- y = a.abs()
- var i = x.t
- r.t = i + y.t
- while (--i >= 0) r[i] = 0
- for (i = 0; i < y.t; ++i) r[i + x.t] = x.am(0, y[i], r, i, 0, x.t)
- r.s = 0
- r.clamp()
- if (this.s != a.s) BigInteger.ZERO.subTo(r, r)
+ throw new TypeError('val must be string, number or Buffer')
}
-// (protected) r = this^2, r != this (HAC 14.16)
-function bnpSquareTo(r) {
- var x = this.abs()
- var i = r.t = 2 * x.t
- while (--i >= 0) r[i] = 0
- for (i = 0; i < x.t - 1; ++i) {
- var c = x.am(i, x[i], r, 2 * i, 0, 1)
- if ((r[i + x.t] += x.am(i + 1, 2 * x[i], r, 2 * i + 1, c, x.t - i - 1)) >= x.DV) {
- r[i + x.t] -= x.DV
- r[i + x.t + 1] = 1
+function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
+ var indexSize = 1
+ var arrLength = arr.length
+ var valLength = val.length
+
+ if (encoding !== undefined) {
+ encoding = String(encoding).toLowerCase()
+ if (encoding === 'ucs2' || encoding === 'ucs-2' ||
+ encoding === 'utf16le' || encoding === 'utf-16le') {
+ if (arr.length < 2 || val.length < 2) {
+ return -1
+ }
+ indexSize = 2
+ arrLength /= 2
+ valLength /= 2
+ byteOffset /= 2
}
}
- if (r.t > 0) r[r.t - 1] += x.am(i, x[i], r, 2 * i, 0, 1)
- r.s = 0
- r.clamp()
-}
-// (protected) divide this by m, quotient and remainder to q, r (HAC 14.20)
-// r != q, this != m. q or r may be null.
-function bnpDivRemTo(m, q, r) {
- var self = this
- var pm = m.abs()
- if (pm.t <= 0) return
- var pt = self.abs()
- if (pt.t < pm.t) {
- if (q != null) q.fromInt(0)
- if (r != null) self.copyTo(r)
- return
+ function read (buf, i) {
+ if (indexSize === 1) {
+ return buf[i]
+ } else {
+ return buf.readUInt16BE(i * indexSize)
+ }
}
- if (r == null) r = new BigInteger()
- var y = new BigInteger(),
- ts = self.s,
- ms = m.s
- var nsh = self.DB - nbits(pm[pm.t - 1]); // normalize modulus
- if (nsh > 0) {
- pm.lShiftTo(nsh, y)
- pt.lShiftTo(nsh, r)
+
+ var i
+ if (dir) {
+ var foundIndex = -1
+ for (i = byteOffset; i < arrLength; i++) {
+ if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
+ if (foundIndex === -1) foundIndex = i
+ if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
+ } else {
+ if (foundIndex !== -1) i -= i - foundIndex
+ foundIndex = -1
+ }
+ }
} else {
- pm.copyTo(y)
- pt.copyTo(r)
- }
- var ys = y.t
- var y0 = y[ys - 1]
- if (y0 == 0) return
- var yt = y0 * (1 << self.F1) + ((ys > 1) ? y[ys - 2] >> self.F2 : 0)
- var d1 = self.FV / yt,
- d2 = (1 << self.F1) / yt,
- e = 1 << self.F2
- var i = r.t,
- j = i - ys,
- t = (q == null) ? new BigInteger() : q
- y.dlShiftTo(j, t)
- if (r.compareTo(t) >= 0) {
- r[r.t++] = 1
- r.subTo(t, r)
- }
- BigInteger.ONE.dlShiftTo(ys, t)
- t.subTo(y, y); // "negative" y so we can replace sub with am later
- while (y.t < ys) y[y.t++] = 0
- while (--j >= 0) {
- // Estimate quotient digit
- var qd = (r[--i] == y0) ? self.DM : Math.floor(r[i] * d1 + (r[i - 1] + e) * d2)
- if ((r[i] += y.am(0, qd, r, j, 0, ys)) < qd) { // Try it out
- y.dlShiftTo(j, t)
- r.subTo(t, r)
- while (r[i] < --qd) r.subTo(t, r)
+ if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
+ for (i = byteOffset; i >= 0; i--) {
+ var found = true
+ for (var j = 0; j < valLength; j++) {
+ if (read(arr, i + j) !== read(val, j)) {
+ found = false
+ break
+ }
+ }
+ if (found) return i
}
}
- if (q != null) {
- r.drShiftTo(ys, q)
- if (ts != ms) BigInteger.ZERO.subTo(q, q)
- }
- r.t = ys
- r.clamp()
- if (nsh > 0) r.rShiftTo(nsh, r); // Denormalize remainder
- if (ts < 0) BigInteger.ZERO.subTo(r, r)
-}
-// (public) this mod a
-function bnMod(a) {
- var r = new BigInteger()
- this.abs()
- .divRemTo(a, null, r)
- if (this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r, r)
- return r
+ return -1
}
-// Modular reduction using "classic" algorithm
-function Classic(m) {
- this.m = m
+Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
+ return this.indexOf(val, byteOffset, encoding) !== -1
}
-function cConvert(x) {
- if (x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m)
- else return x
+Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
+ return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
}
-function cRevert(x) {
- return x
+Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
+ return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}
-function cReduce(x) {
- x.divRemTo(this.m, null, x)
-}
+function hexWrite (buf, string, offset, length) {
+ offset = Number(offset) || 0
+ var remaining = buf.length - offset
+ if (!length) {
+ length = remaining
+ } else {
+ length = Number(length)
+ if (length > remaining) {
+ length = remaining
+ }
+ }
-function cMulTo(x, y, r) {
- x.multiplyTo(y, r)
- this.reduce(r)
-}
+ // must be an even number of digits
+ var strLen = string.length
+ if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
-function cSqrTo(x, r) {
- x.squareTo(r)
- this.reduce(r)
+ if (length > strLen / 2) {
+ length = strLen / 2
+ }
+ for (var i = 0; i < length; ++i) {
+ var parsed = parseInt(string.substr(i * 2, 2), 16)
+ if (numberIsNaN(parsed)) return i
+ buf[offset + i] = parsed
+ }
+ return i
}
-Classic.prototype.convert = cConvert
-Classic.prototype.revert = cRevert
-Classic.prototype.reduce = cReduce
-Classic.prototype.mulTo = cMulTo
-Classic.prototype.sqrTo = cSqrTo
+function utf8Write (buf, string, offset, length) {
+ return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
+}
-// (protected) return "-1/this % 2^DB"; useful for Mont. reduction
-// justification:
-// xy == 1 (mod m)
-// xy = 1+km
-// xy(2-xy) = (1+km)(1-km)
-// x[y(2-xy)] = 1-k^2m^2
-// x[y(2-xy)] == 1 (mod m^2)
-// if y is 1/x mod m, then y(2-xy) is 1/x mod m^2
-// should reduce x and y(2-xy) by m^2 at each step to keep size bounded.
-// JS multiply "overflows" differently from C/C++, so care is needed here.
-function bnpInvDigit() {
- if (this.t < 1) return 0
- var x = this[0]
- if ((x & 1) == 0) return 0
- var y = x & 3; // y == 1/x mod 2^2
- y = (y * (2 - (x & 0xf) * y)) & 0xf; // y == 1/x mod 2^4
- y = (y * (2 - (x & 0xff) * y)) & 0xff; // y == 1/x mod 2^8
- y = (y * (2 - (((x & 0xffff) * y) & 0xffff))) & 0xffff; // y == 1/x mod 2^16
- // last step - calculate inverse mod DV directly
- // assumes 16 < DB <= 32 and assumes ability to handle 48-bit ints
- y = (y * (2 - x * y % this.DV)) % this.DV; // y == 1/x mod 2^dbits
- // we really want the negative inverse, and -DV < y < DV
- return (y > 0) ? this.DV - y : -y
+function asciiWrite (buf, string, offset, length) {
+ return blitBuffer(asciiToBytes(string), buf, offset, length)
}
-// Montgomery reduction
-function Montgomery(m) {
- this.m = m
- this.mp = m.invDigit()
- this.mpl = this.mp & 0x7fff
- this.mph = this.mp >> 15
- this.um = (1 << (m.DB - 15)) - 1
- this.mt2 = 2 * m.t
+function latin1Write (buf, string, offset, length) {
+ return asciiWrite(buf, string, offset, length)
}
-// xR mod m
-function montConvert(x) {
- var r = new BigInteger()
- x.abs()
- .dlShiftTo(this.m.t, r)
- r.divRemTo(this.m, null, r)
- if (x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r, r)
- return r
+function base64Write (buf, string, offset, length) {
+ return blitBuffer(base64ToBytes(string), buf, offset, length)
}
-// x/R mod m
-function montRevert(x) {
- var r = new BigInteger()
- x.copyTo(r)
- this.reduce(r)
- return r
+function ucs2Write (buf, string, offset, length) {
+ return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}
-// x = x/R mod m (HAC 14.32)
-function montReduce(x) {
- while (x.t <= this.mt2) // pad x so am has enough room later
- x[x.t++] = 0
- for (var i = 0; i < this.m.t; ++i) {
- // faster way of calculating u0 = x[i]*mp mod DV
- var j = x[i] & 0x7fff
- var u0 = (j * this.mpl + (((j * this.mph + (x[i] >> 15) * this.mpl) & this.um) << 15)) & x.DM
- // use am to combine the multiply-shift-add into one call
- j = i + this.m.t
- x[j] += this.m.am(0, u0, x, i, 0, this.m.t)
- // propagate carry
- while (x[j] >= x.DV) {
- x[j] -= x.DV
- x[++j]++
+Buffer.prototype.write = function write (string, offset, length, encoding) {
+ // Buffer#write(string)
+ if (offset === undefined) {
+ encoding = 'utf8'
+ length = this.length
+ offset = 0
+ // Buffer#write(string, encoding)
+ } else if (length === undefined && typeof offset === 'string') {
+ encoding = offset
+ length = this.length
+ offset = 0
+ // Buffer#write(string, offset[, length][, encoding])
+ } else if (isFinite(offset)) {
+ offset = offset >>> 0
+ if (isFinite(length)) {
+ length = length >>> 0
+ if (encoding === undefined) encoding = 'utf8'
+ } else {
+ encoding = length
+ length = undefined
}
+ } else {
+ throw new Error(
+ 'Buffer.write(string, encoding, offset[, length]) is no longer supported'
+ )
}
- x.clamp()
- x.drShiftTo(this.m.t, x)
- if (x.compareTo(this.m) >= 0) x.subTo(this.m, x)
-}
-
-// r = "x^2/R mod m"; x != r
-function montSqrTo(x, r) {
- x.squareTo(r)
- this.reduce(r)
-}
-// r = "xy/R mod m"; x,y != r
-function montMulTo(x, y, r) {
- x.multiplyTo(y, r)
- this.reduce(r)
-}
+ var remaining = this.length - offset
+ if (length === undefined || length > remaining) length = remaining
-Montgomery.prototype.convert = montConvert
-Montgomery.prototype.revert = montRevert
-Montgomery.prototype.reduce = montReduce
-Montgomery.prototype.mulTo = montMulTo
-Montgomery.prototype.sqrTo = montSqrTo
+ if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
+ throw new RangeError('Attempt to write outside buffer bounds')
+ }
-// (protected) true iff this is even
-function bnpIsEven() {
- return ((this.t > 0) ? (this[0] & 1) : this.s) == 0
-}
+ if (!encoding) encoding = 'utf8'
-// (protected) this^e, e < 2^32, doing sqr and mul with "r" (HAC 14.79)
-function bnpExp(e, z) {
- if (e > 0xffffffff || e < 1) return BigInteger.ONE
- var r = new BigInteger(),
- r2 = new BigInteger(),
- g = z.convert(this),
- i = nbits(e) - 1
- g.copyTo(r)
- while (--i >= 0) {
- z.sqrTo(r, r2)
- if ((e & (1 << i)) > 0) z.mulTo(r2, g, r)
- else {
- var t = r
- r = r2
- r2 = t
- }
- }
- return z.revert(r)
-}
+ var loweredCase = false
+ for (;;) {
+ switch (encoding) {
+ case 'hex':
+ return hexWrite(this, string, offset, length)
-// (public) this^e % m, 0 <= e < 2^32
-function bnModPowInt(e, m) {
- var z
- if (e < 256 || m.isEven()) z = new Classic(m)
- else z = new Montgomery(m)
- return this.exp(e, z)
-}
+ case 'utf8':
+ case 'utf-8':
+ return utf8Write(this, string, offset, length)
-// protected
-proto.copyTo = bnpCopyTo
-proto.fromInt = bnpFromInt
-proto.fromString = bnpFromString
-proto.clamp = bnpClamp
-proto.dlShiftTo = bnpDLShiftTo
-proto.drShiftTo = bnpDRShiftTo
-proto.lShiftTo = bnpLShiftTo
-proto.rShiftTo = bnpRShiftTo
-proto.subTo = bnpSubTo
-proto.multiplyTo = bnpMultiplyTo
-proto.squareTo = bnpSquareTo
-proto.divRemTo = bnpDivRemTo
-proto.invDigit = bnpInvDigit
-proto.isEven = bnpIsEven
-proto.exp = bnpExp
+ case 'ascii':
+ return asciiWrite(this, string, offset, length)
-// public
-proto.toString = bnToString
-proto.negate = bnNegate
-proto.abs = bnAbs
-proto.compareTo = bnCompareTo
-proto.bitLength = bnBitLength
-proto.byteLength = bnByteLength
-proto.mod = bnMod
-proto.modPowInt = bnModPowInt
+ case 'latin1':
+ case 'binary':
+ return latin1Write(this, string, offset, length)
-// (public)
-function bnClone() {
- var r = new BigInteger()
- this.copyTo(r)
- return r
-}
+ case 'base64':
+ // Warning: maxLength not taken into account in base64Write
+ return base64Write(this, string, offset, length)
-// (public) return value as integer
-function bnIntValue() {
- if (this.s < 0) {
- if (this.t == 1) return this[0] - this.DV
- else if (this.t == 0) return -1
- } else if (this.t == 1) return this[0]
- else if (this.t == 0) return 0
- // assumes 16 < DB < 32
- return ((this[1] & ((1 << (32 - this.DB)) - 1)) << this.DB) | this[0]
-}
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return ucs2Write(this, string, offset, length)
-// (public) return value as byte
-function bnByteValue() {
- return (this.t == 0) ? this.s : (this[0] << 24) >> 24
+ default:
+ if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+ encoding = ('' + encoding).toLowerCase()
+ loweredCase = true
+ }
+ }
}
-// (public) return value as short (assumes DB>=16)
-function bnShortValue() {
- return (this.t == 0) ? this.s : (this[0] << 16) >> 16
+Buffer.prototype.toJSON = function toJSON () {
+ return {
+ type: 'Buffer',
+ data: Array.prototype.slice.call(this._arr || this, 0)
+ }
}
-// (protected) return x s.t. r^x < DV
-function bnpChunkSize(r) {
- return Math.floor(Math.LN2 * this.DB / Math.log(r))
+function base64Slice (buf, start, end) {
+ if (start === 0 && end === buf.length) {
+ return base64.fromByteArray(buf)
+ } else {
+ return base64.fromByteArray(buf.slice(start, end))
+ }
}
-// (public) 0 if this == 0, 1 if this > 0
-function bnSigNum() {
- if (this.s < 0) return -1
- else if (this.t <= 0 || (this.t == 1 && this[0] <= 0)) return 0
- else return 1
-}
+function utf8Slice (buf, start, end) {
+ end = Math.min(buf.length, end)
+ var res = []
-// (protected) convert to radix string
-function bnpToRadix(b) {
- if (b == null) b = 10
- if (this.signum() == 0 || b < 2 || b > 36) return "0"
- var cs = this.chunkSize(b)
- var a = Math.pow(b, cs)
- var d = nbv(a),
- y = new BigInteger(),
- z = new BigInteger(),
- r = ""
- this.divRemTo(d, y, z)
- while (y.signum() > 0) {
- r = (a + z.intValue())
- .toString(b)
- .substr(1) + r
- y.divRemTo(d, y, z)
- }
- return z.intValue()
- .toString(b) + r
-}
+ var i = start
+ while (i < end) {
+ var firstByte = buf[i]
+ var codePoint = null
+ var bytesPerSequence = (firstByte > 0xEF) ? 4
+ : (firstByte > 0xDF) ? 3
+ : (firstByte > 0xBF) ? 2
+ : 1
-// (protected) convert from radix string
-function bnpFromRadix(s, b) {
- var self = this
- self.fromInt(0)
- if (b == null) b = 10
- var cs = self.chunkSize(b)
- var d = Math.pow(b, cs),
- mi = false,
- j = 0,
- w = 0
- for (var i = 0; i < s.length; ++i) {
- var x = intAt(s, i)
- if (x < 0) {
- if (s.charAt(i) == "-" && self.signum() == 0) mi = true
- continue
+ if (i + bytesPerSequence <= end) {
+ var secondByte, thirdByte, fourthByte, tempCodePoint
+
+ switch (bytesPerSequence) {
+ case 1:
+ if (firstByte < 0x80) {
+ codePoint = firstByte
+ }
+ break
+ case 2:
+ secondByte = buf[i + 1]
+ if ((secondByte & 0xC0) === 0x80) {
+ tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
+ if (tempCodePoint > 0x7F) {
+ codePoint = tempCodePoint
+ }
+ }
+ break
+ case 3:
+ secondByte = buf[i + 1]
+ thirdByte = buf[i + 2]
+ if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
+ tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
+ if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
+ codePoint = tempCodePoint
+ }
+ }
+ break
+ case 4:
+ secondByte = buf[i + 1]
+ thirdByte = buf[i + 2]
+ fourthByte = buf[i + 3]
+ if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
+ tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
+ if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
+ codePoint = tempCodePoint
+ }
+ }
+ }
}
- w = b * w + x
- if (++j >= cs) {
- self.dMultiply(d)
- self.dAddOffset(w, 0)
- j = 0
- w = 0
+
+ if (codePoint === null) {
+ // we did not generate a valid codePoint so insert a
+ // replacement char (U+FFFD) and advance only 1 byte
+ codePoint = 0xFFFD
+ bytesPerSequence = 1
+ } else if (codePoint > 0xFFFF) {
+ // encode to utf16 (surrogate pair dance)
+ codePoint -= 0x10000
+ res.push(codePoint >>> 10 & 0x3FF | 0xD800)
+ codePoint = 0xDC00 | codePoint & 0x3FF
}
+
+ res.push(codePoint)
+ i += bytesPerSequence
}
- if (j > 0) {
- self.dMultiply(Math.pow(b, j))
- self.dAddOffset(w, 0)
- }
- if (mi) BigInteger.ZERO.subTo(self, self)
+
+ return decodeCodePointsArray(res)
}
-// (protected) alternate constructor
-function bnpFromNumber(a, b, c) {
- var self = this
- if ("number" == typeof b) {
- // new BigInteger(int,int,RNG)
- if (a < 2) self.fromInt(1)
- else {
- self.fromNumber(a, c)
- if (!self.testBit(a - 1)) // force MSB set
- self.bitwiseTo(BigInteger.ONE.shiftLeft(a - 1), op_or, self)
- if (self.isEven()) self.dAddOffset(1, 0); // force odd
- while (!self.isProbablePrime(b)) {
- self.dAddOffset(2, 0)
- if (self.bitLength() > a) self.subTo(BigInteger.ONE.shiftLeft(a - 1), self)
- }
- }
- } else {
- // new BigInteger(int,RNG)
- var x = new Array(),
- t = a & 7
- x.length = (a >> 3) + 1
- b.nextBytes(x)
- if (t > 0) x[0] &= ((1 << t) - 1)
- else x[0] = 0
- self.fromString(x, 256)
+// Based on http://stackoverflow.com/a/22747272/680742, the browser with
+// the lowest limit is Chrome, with 0x10000 args.
+// We go 1 magnitude less, for safety
+var MAX_ARGUMENTS_LENGTH = 0x1000
+
+function decodeCodePointsArray (codePoints) {
+ var len = codePoints.length
+ if (len <= MAX_ARGUMENTS_LENGTH) {
+ return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
}
-}
-// (public) convert to bigendian byte array
-function bnToByteArray() {
- var self = this
- var i = self.t,
- r = new Array()
- r[0] = self.s
- var p = self.DB - (i * self.DB) % 8,
- d, k = 0
- if (i-- > 0) {
- if (p < self.DB && (d = self[i] >> p) != (self.s & self.DM) >> p)
- r[k++] = d | (self.s << (self.DB - p))
- while (i >= 0) {
- if (p < 8) {
- d = (self[i] & ((1 << p) - 1)) << (8 - p)
- d |= self[--i] >> (p += self.DB - 8)
- } else {
- d = (self[i] >> (p -= 8)) & 0xff
- if (p <= 0) {
- p += self.DB
- --i
- }
- }
- if ((d & 0x80) != 0) d |= -256
- if (k === 0 && (self.s & 0x80) != (d & 0x80))++k
- if (k > 0 || d != self.s) r[k++] = d
- }
+ // Decode in chunks to avoid "call stack size exceeded".
+ var res = ''
+ var i = 0
+ while (i < len) {
+ res += String.fromCharCode.apply(
+ String,
+ codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
+ )
}
- return r
+ return res
}
-function bnEquals(a) {
- return (this.compareTo(a) == 0)
-}
+function asciiSlice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
-function bnMin(a) {
- return (this.compareTo(a) < 0) ? this : a
+ for (var i = start; i < end; ++i) {
+ ret += String.fromCharCode(buf[i] & 0x7F)
+ }
+ return ret
}
-function bnMax(a) {
- return (this.compareTo(a) > 0) ? this : a
-}
+function latin1Slice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
-// (protected) r = this op a (bitwise)
-function bnpBitwiseTo(a, op, r) {
- var self = this
- var i, f, m = Math.min(a.t, self.t)
- for (i = 0; i < m; ++i) r[i] = op(self[i], a[i])
- if (a.t < self.t) {
- f = a.s & self.DM
- for (i = m; i < self.t; ++i) r[i] = op(self[i], f)
- r.t = self.t
- } else {
- f = self.s & self.DM
- for (i = m; i < a.t; ++i) r[i] = op(f, a[i])
- r.t = a.t
+ for (var i = start; i < end; ++i) {
+ ret += String.fromCharCode(buf[i])
}
- r.s = op(self.s, a.s)
- r.clamp()
+ return ret
}
-// (public) this & a
-function op_and(x, y) {
- return x & y
+function hexSlice (buf, start, end) {
+ var len = buf.length
+
+ if (!start || start < 0) start = 0
+ if (!end || end < 0 || end > len) end = len
+
+ var out = ''
+ for (var i = start; i < end; ++i) {
+ out += toHex(buf[i])
+ }
+ return out
}
-function bnAnd(a) {
- var r = new BigInteger()
- this.bitwiseTo(a, op_and, r)
- return r
+function utf16leSlice (buf, start, end) {
+ var bytes = buf.slice(start, end)
+ var res = ''
+ for (var i = 0; i < bytes.length; i += 2) {
+ res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
+ }
+ return res
}
-// (public) this | a
-function op_or(x, y) {
- return x | y
+Buffer.prototype.slice = function slice (start, end) {
+ var len = this.length
+ start = ~~start
+ end = end === undefined ? len : ~~end
+
+ if (start < 0) {
+ start += len
+ if (start < 0) start = 0
+ } else if (start > len) {
+ start = len
+ }
+
+ if (end < 0) {
+ end += len
+ if (end < 0) end = 0
+ } else if (end > len) {
+ end = len
+ }
+
+ if (end < start) end = start
+
+ var newBuf = this.subarray(start, end)
+ // Return an augmented `Uint8Array` instance
+ newBuf.__proto__ = Buffer.prototype
+ return newBuf
}
-function bnOr(a) {
- var r = new BigInteger()
- this.bitwiseTo(a, op_or, r)
- return r
+/*
+ * Need to make sure that buffer isn't trying to write out of bounds.
+ */
+function checkOffset (offset, ext, length) {
+ if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
+ if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}
-// (public) this ^ a
-function op_xor(x, y) {
- return x ^ y
+Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+ var val = this[offset]
+ var mul = 1
+ var i = 0
+ while (++i < byteLength && (mul *= 0x100)) {
+ val += this[offset + i] * mul
+ }
+
+ return val
}
-function bnXor(a) {
- var r = new BigInteger()
- this.bitwiseTo(a, op_xor, r)
- return r
+Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) {
+ checkOffset(offset, byteLength, this.length)
+ }
+
+ var val = this[offset + --byteLength]
+ var mul = 1
+ while (byteLength > 0 && (mul *= 0x100)) {
+ val += this[offset + --byteLength] * mul
+ }
+
+ return val
}
-// (public) this & ~a
-function op_andnot(x, y) {
- return x & ~y
+Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 1, this.length)
+ return this[offset]
}
-function bnAndNot(a) {
- var r = new BigInteger()
- this.bitwiseTo(a, op_andnot, r)
- return r
+Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return this[offset] | (this[offset + 1] << 8)
}
-// (public) ~this
-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
+Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return (this[offset] << 8) | this[offset + 1]
}
-// (public) this << n
-function bnShiftLeft(n) {
- var r = new BigInteger()
- if (n < 0) this.rShiftTo(-n, r)
- else this.lShiftTo(n, r)
- return r
+Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return ((this[offset]) |
+ (this[offset + 1] << 8) |
+ (this[offset + 2] << 16)) +
+ (this[offset + 3] * 0x1000000)
}
-// (public) this >> n
-function bnShiftRight(n) {
- var r = new BigInteger()
- if (n < 0) this.lShiftTo(-n, r)
- else this.rShiftTo(n, r)
- return r
+Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return (this[offset] * 0x1000000) +
+ ((this[offset + 1] << 16) |
+ (this[offset + 2] << 8) |
+ this[offset + 3])
}
-// 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
+Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+ var val = this[offset]
+ var mul = 1
+ var i = 0
+ while (++i < byteLength && (mul *= 0x100)) {
+ val += this[offset + i] * mul
}
- if ((x & 1) == 0)++r
- return r
-}
+ mul *= 0x80
-// (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
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+ return val
}
-// return number of 1 bits in x
-function cbit(x) {
- var r = 0
- while (x != 0) {
- x &= x - 1
- ++r
+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
}
- return r
+ mul *= 0x80
+
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+ return val
}
-// (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
+Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 1, this.length)
+ if (!(this[offset] & 0x80)) return (this[offset])
+ return ((0xff - this[offset] + 1) * -1)
}
-// (public) true iff nth bit is set
-function bnTestBit(n) {
- var j = Math.floor(n / this.DB)
- if (j >= this.t) return (this.s != 0)
- return ((this[j] & (1 << (n % this.DB))) != 0)
+Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ var val = this[offset] | (this[offset + 1] << 8)
+ return (val & 0x8000) ? val | 0xFFFF0000 : val
}
-// (protected) this op (1<<n)
-function bnpChangeBit(n, op) {
- var r = BigInteger.ONE.shiftLeft(n)
- this.bitwiseTo(r, op, r)
- return r
+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
}
-// (public) this | (1<<n)
-function bnSetBit(n) {
- return this.changeBit(n, op_or)
+Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return (this[offset]) |
+ (this[offset + 1] << 8) |
+ (this[offset + 2] << 16) |
+ (this[offset + 3] << 24)
}
-// (public) this & ~(1<<n)
-function bnClearBit(n) {
- return this.changeBit(n, op_andnot)
+Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return (this[offset] << 24) |
+ (this[offset + 1] << 16) |
+ (this[offset + 2] << 8) |
+ (this[offset + 3])
}
-// (public) this ^ (1<<n)
-function bnFlipBit(n) {
- return this.changeBit(n, op_xor)
+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)
}
-// (protected) r = this + a
-function bnpAddTo(a, r) {
- var self = this
+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)
+}
- 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()
+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)
}
-// (public) this + a
-function bnAdd(a) {
- var r = new BigInteger()
- this.addTo(a, r)
- return r
+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)
}
-// (public) this - a
-function bnSubtract(a) {
- var r = new BigInteger()
- this.subTo(a, r)
- return r
+function checkInt (buf, value, offset, ext, max, min) {
+ if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
+ if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
+ if (offset + ext > buf.length) throw new RangeError('Index out of range')
}
-// (public) this * a
-function bnMultiply(a) {
- var r = new BigInteger()
- this.multiplyTo(a, r)
- return r
+Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) {
+ var maxBytes = Math.pow(2, 8 * byteLength) - 1
+ checkInt(this, value, offset, byteLength, maxBytes, 0)
+ }
+
+ var mul = 1
+ var i = 0
+ this[offset] = value & 0xFF
+ while (++i < byteLength && (mul *= 0x100)) {
+ this[offset + i] = (value / mul) & 0xFF
+ }
+
+ return offset + byteLength
}
-// (public) this^2
-function bnSquare() {
- var r = new BigInteger()
- this.squareTo(r)
- return r
+Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) {
+ var maxBytes = Math.pow(2, 8 * byteLength) - 1
+ checkInt(this, value, offset, byteLength, maxBytes, 0)
+ }
+
+ var i = byteLength - 1
+ var mul = 1
+ this[offset + i] = value & 0xFF
+ while (--i >= 0 && (mul *= 0x100)) {
+ this[offset + i] = (value / mul) & 0xFF
+ }
+
+ return offset + byteLength
}
-// (public) this / a
-function bnDivide(a) {
- var r = new BigInteger()
- this.divRemTo(a, r, null)
- return r
+Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
+ this[offset] = (value & 0xff)
+ return offset + 1
}
-// (public) this % a
-function bnRemainder(a) {
- var r = new BigInteger()
- this.divRemTo(a, null, r)
- return r
+Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+ this[offset] = (value & 0xff)
+ this[offset + 1] = (value >>> 8)
+ return offset + 2
}
-// (public) [this/a,this%a]
-function bnDivideAndRemainder(a) {
- var q = new BigInteger(),
- r = new BigInteger()
- this.divRemTo(a, q, r)
- return new Array(q, r)
+Buffer.prototype.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
}
-// (protected) this *= n, this >= 0, 1 < n < DV
-function bnpDMultiply(n) {
- this[this.t] = this.am(0, n - 1, this, 0, 0, this.t)
- ++this.t
- this.clamp()
+Buffer.prototype.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
}
-// (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.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
}
-// A "null" reducer
-function NullExp() {}
+Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ var limit = Math.pow(2, (8 * byteLength) - 1)
-function nNop(x) {
- return x
+ checkInt(this, value, offset, byteLength, limit - 1, -limit)
+ }
+
+ var i = 0
+ var mul = 1
+ var sub = 0
+ this[offset] = value & 0xFF
+ while (++i < byteLength && (mul *= 0x100)) {
+ if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
+ sub = 1
+ }
+ this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+ }
+
+ return offset + byteLength
}
-function nMulTo(x, y, r) {
- x.multiplyTo(y, r)
+Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ var limit = Math.pow(2, (8 * byteLength) - 1)
+
+ checkInt(this, value, offset, byteLength, limit - 1, -limit)
+ }
+
+ var i = byteLength - 1
+ var mul = 1
+ var sub = 0
+ this[offset + i] = value & 0xFF
+ while (--i >= 0 && (mul *= 0x100)) {
+ if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
+ sub = 1
+ }
+ this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+ }
+
+ return offset + byteLength
}
-function nSqrTo(x, r) {
- x.squareTo(r)
+Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
+ if (value < 0) value = 0xff + value + 1
+ this[offset] = (value & 0xff)
+ return offset + 1
}
-NullExp.prototype.convert = nNop
-NullExp.prototype.revert = nNop
-NullExp.prototype.mulTo = nMulTo
-NullExp.prototype.sqrTo = nSqrTo
+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
+}
-// (public) this^e
-function bnPow(e) {
- return this.exp(e, new NullExp())
+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
}
-// (protected) r = lower n words of "this * a", a.t <= n
-// "this" should be the larger one if appropriate.
-function bnpMultiplyLowerTo(a, n, r) {
- var i = Math.min(this.t + a.t, n)
- r.s = 0; // assumes a,this >= 0
- r.t = i
- while (i > 0) r[--i] = 0
- var j
- for (j = r.t - this.t; i < j; ++i) r[i + this.t] = this.am(0, a[i], r, i, 0, this.t)
- for (j = Math.min(a.t, n); i < j; ++i) this.am(0, a[i], r, i, 0, n - i)
- r.clamp()
+Buffer.prototype.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
}
-// (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)
+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
}
-// 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 checkIEEE754 (buf, value, offset, ext, max, min) {
+ if (offset + ext > buf.length) throw new RangeError('Index out of range')
+ if (offset < 0) throw new RangeError('Index out of range')
}
-function 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 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
}
-function barrettRevert(x) {
- return x
+Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
+ return writeFloat(this, value, offset, true, noAssert)
}
-// 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.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
+ return writeFloat(this, value, offset, false, noAssert)
+}
+
+function writeDouble (buf, value, offset, littleEndian, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
}
- 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)
+ ieee754.write(buf, value, offset, littleEndian, 52, 8)
+ return offset + 8
}
-// r = x^2 mod m; x != r
-function barrettSqrTo(x, r) {
- x.squareTo(r)
- this.reduce(r)
+Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, true, noAssert)
}
-// r = x*y mod m; x,y != r
-function barrettMulTo(x, y, r) {
- x.multiplyTo(y, r)
- this.reduce(r)
+Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, false, noAssert)
}
-Barrett.prototype.convert = barrettConvert
-Barrett.prototype.revert = barrettRevert
-Barrett.prototype.reduce = barrettReduce
-Barrett.prototype.mulTo = barrettMulTo
-Barrett.prototype.sqrTo = barrettSqrTo
+// 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
-// (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)
+ // Copy 0 bytes; we're done
+ if (end === start) return 0
+ if (target.length === 0 || this.length === 0) return 0
- // 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
- }
+ // 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')
- 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)
- }
+ // Are we oob?
+ if (end > this.length) end = this.length
+ if (target.length - targetStart < end - start) {
+ end = target.length - targetStart + start
+ }
- n = k
- while ((w & 1) == 0) {
- w >>= 1
- --n
- }
- if ((i -= n) < 0) {
- i += this.DB
- --j
+ 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]
}
- 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)
+ } 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
+ )
+ }
- 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 len
+}
+
+// Usage:
+// buffer.fill(number[, offset[, end]])
+// buffer.fill(buffer[, offset[, end]])
+// buffer.fill(string[, offset[, end]][, encoding])
+Buffer.prototype.fill = function fill (val, start, end, encoding) {
+ // Handle string cases:
+ if (typeof val === 'string') {
+ if (typeof start === 'string') {
+ encoding = start
+ start = 0
+ end = this.length
+ } else if (typeof end === 'string') {
+ encoding = end
+ end = this.length
+ }
+ if (val.length === 1) {
+ var code = val.charCodeAt(0)
+ if (code < 256) {
+ val = code
}
}
+ if (encoding !== undefined && typeof encoding !== 'string') {
+ throw new TypeError('encoding must be a string')
+ }
+ if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
+ throw new TypeError('Unknown encoding: ' + encoding)
+ }
+ } else if (typeof val === 'number') {
+ val = val & 255
}
- 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
+ // 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')
}
- 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)
+
+ if (end <= start) {
+ return this
}
- 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)
+
+ start = start >>> 0
+ end = end === undefined ? this.length : end >>> 0
+
+ if (!val) val = 0
+
+ var i
+ if (typeof val === 'number') {
+ for (i = start; i < end; ++i) {
+ this[i] = val
+ }
+ } else {
+ var bytes = Buffer.isBuffer(val)
+ ? val
+ : new Buffer(val, encoding)
+ var len = bytes.length
+ for (i = 0; i < end - start; ++i) {
+ this[i + start] = bytes[i % len]
}
}
- if (g > 0) y.lShiftTo(g, y)
- return y
+
+ return this
}
-// (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
+// HELPER FUNCTIONS
+// ================
+
+var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
+
+function base64clean (str) {
+ // Node strips out invalid characters like \n and \t from the string, base64-js does not
+ str = str.trim().replace(INVALID_BASE64_RE, '')
+ // Node converts strings with length < 2 to ''
+ if (str.length < 2) return ''
+ // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
+ while (str.length % 4 !== 0) {
+ str = str + '='
+ }
+ return str
}
-// (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)
+function toHex (n) {
+ if (n < 16) return '0' + n.toString(16)
+ return n.toString(16)
+}
+
+function utf8ToBytes (string, units) {
+ units = units || Infinity
+ var codePoint
+ var length = string.length
+ var leadSurrogate = null
+ var bytes = []
+
+ for (var i = 0; i < length; ++i) {
+ codePoint = string.charCodeAt(i)
+
+ // is surrogate component
+ if (codePoint > 0xD7FF && codePoint < 0xE000) {
+ // last char was a lead
+ if (!leadSurrogate) {
+ // no lead yet
+ if (codePoint > 0xDBFF) {
+ // unexpected trail
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ continue
+ } else if (i + 1 === length) {
+ // unpaired lead
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ continue
}
- c.rShiftTo(1, c)
- } else if (!d.isEven()) d.subTo(m, d)
- d.rShiftTo(1, d)
+
+ // valid lead
+ leadSurrogate = codePoint
+
+ continue
+ }
+
+ // 2 leads in a row
+ if (codePoint < 0xDC00) {
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ leadSurrogate = codePoint
+ continue
+ }
+
+ // valid surrogate pair
+ codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
+ } else if (leadSurrogate) {
+ // valid bmp char, but last char was a lead
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
}
- if (u.compareTo(v) >= 0) {
- u.subTo(v, u)
- if (ac) a.subTo(c, a)
- b.subTo(d, b)
+
+ 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 {
- v.subTo(u, v)
- if (ac) c.subTo(a, c)
- d.subTo(b, d)
+ throw new Error('Invalid code point')
}
}
- 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 bytes
}
-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 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
+}
-var lplim = (1 << 26) / lowprimes[lowprimes.length - 1]
+function utf16leToBytes (str, units) {
+ var c, hi, lo
+ var byteArray = []
+ for (var i = 0; i < str.length; ++i) {
+ if ((units -= 2) < 0) break
-// (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
+ c = str.charCodeAt(i)
+ hi = c >> 8
+ lo = c % 256
+ byteArray.push(lo)
+ byteArray.push(hi)
}
- 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 byteArray
+}
+
+function base64ToBytes (str) {
+ return base64.toByteArray(base64clean(str))
+}
+
+function blitBuffer (src, dst, offset, length) {
+ for (var i = 0; i < length; ++i) {
+ if ((i + offset >= dst.length) || (i >= src.length)) break
+ dst[i + offset] = src[i]
}
- return x.millerRabin(t)
+ return i
}
-// (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
+// Node 0.10 supports `ArrayBuffer` but lacks `ArrayBuffer.isView`
+function isArrayBufferView (obj) {
+ return (typeof ArrayBuffer.isView === 'function') && ArrayBuffer.isView(obj)
+}
+
+function numberIsNaN (obj) {
+ return obj !== obj // eslint-disable-line no-self-compare
+}
+
+},{"base64-js":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]
+
+ i += d
+
+ e = s & ((1 << (-nBits)) - 1)
+ s >>= (-nBits)
+ nBits += eLen
+ for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+ m = e & ((1 << (-nBits)) - 1)
+ e >>= (-nBits)
+ nBits += mLen
+ for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+ if (e === 0) {
+ e = 1 - eBias
+ } else if (e === eMax) {
+ return m ? NaN : ((s ? -1 : 1) * Infinity)
+ } else {
+ m = m + Math.pow(2, mLen)
+ e = e - eBias
+ }
+ return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
+}
+
+exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
+ var e, m, c
+ var eLen = nBytes * 8 - mLen - 1
+ var eMax = (1 << eLen) - 1
+ var eBias = eMax >> 1
+ var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
+ var i = isLE ? 0 : (nBytes - 1)
+ var d = isLE ? 1 : -1
+ var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
+
+ value = Math.abs(value)
+
+ if (isNaN(value) || value === Infinity) {
+ m = isNaN(value) ? 1 : 0
+ e = eMax
+ } else {
+ e = Math.floor(Math.log(value) / Math.LN2)
+ if (value * (c = Math.pow(2, -e)) < 1) {
+ e--
+ c *= 2
}
- 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
+ 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
}
}
- 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
+ for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
-// 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
+ e = (e << mLen) | m
+ eLen += mLen
+ for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
-// JSBN-specific extension
-proto.square = bnSquare
+ buffer[offset + i - d] |= s * 128
+}
-// constants
-BigInteger.ZERO = nbv(0)
-BigInteger.ONE = nbv(1)
-BigInteger.valueOf = nbv
+},{}],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
-module.exports = BigInteger
+var Buffer = require('safe-buffer').Buffer
-},{"../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')
+module.exports = function base (ALPHABET) {
+ var ALPHABET_MAP = {}
+ var BASE = ALPHABET.length
+ var LEADER = ALPHABET.charAt(0)
-/**
- * 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))
+ // 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
}
- return new BigInteger(byteArray)
-}
+ function encode (source) {
+ if (source.length === 0) return ''
-/**
- * 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
-}
+ 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
+ }
-BigInteger.fromDERInteger = function(byteArray) {
- return new BigInteger(byteArray)
-}
+ while (carry > 0) {
+ digits.push(carry % BASE)
+ carry = (carry / BASE) | 0
+ }
+ }
-/*
- * 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 string = ''
-BigInteger.fromBuffer = function(buffer) {
- // BigInteger expects a DER integer conformant byte array
- if (buffer[0] & 0x80) {
- var byteArray = Array.prototype.slice.call(buffer)
+ // 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 new BigInteger([0].concat(byteArray))
+ return string
}
- return new BigInteger(buffer)
-}
+ function decodeUnsafe (string) {
+ if (string.length === 0) return Buffer.allocUnsafe(0)
-BigInteger.fromHex = function(hex) {
- if (hex === '') return BigInteger.ZERO
+ var bytes = [0]
+ for (var i = 0; i < string.length; i++) {
+ var value = ALPHABET_MAP[string[i]]
+ if (value === undefined) return
- 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)
-}
+ for (var j = 0, carry = value; j < bytes.length; ++j) {
+ carry += bytes[j] * BASE
+ bytes[j] = carry & 0xff
+ carry >>= 8
+ }
-BigInteger.prototype.toBuffer = function(size) {
- var byteArray = this.toByteArrayUnsigned()
- var zeros = []
+ while (carry > 0) {
+ bytes.push(carry & 0xff)
+ carry >>= 8
+ }
+ }
- var padding = size - byteArray.length
- while (zeros.length < padding) zeros.push(0)
+ // deal with leading zeros
+ for (var k = 0; string[k] === LEADER && k < string.length - 1; ++k) {
+ bytes.push(0)
+ }
- return new Buffer(zeros.concat(byteArray))
-}
+ return Buffer.from(bytes.reverse())
+ }
-BigInteger.prototype.toHex = function(size) {
- return this.toBuffer(size).toString('hex')
+ 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
+ }
}
-}).call(this,require("buffer").Buffer)
-},{"./bigi":1,"assert":5,"buffer":7}],3:[function(require,module,exports){
-var BigInteger = require('./bigi')
+},{"safe-buffer":6}],6:[function(require,module,exports){
+module.exports = require('buffer')
-//addons
-require('./convert')
+},{"buffer":2}]},{},[4])(4)
+});</script>
+ <script>(function (root) {
+ "use strict";
-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"
+/***** unorm.js *****/
+
+/*
+ * UnicodeNormalizer 1.0.0
+ * Copyright (c) 2008 Matsuza
+ * Dual licensed under the MIT (MIT-LICENSE.txt) and GPL (GPL-LICENSE.txt) licenses.
+ * $Date: 2008-06-05 16:44:17 +0200 (Thu, 05 Jun 2008) $
+ * $Rev: 13309 $
+ */
+
+ var 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]);
+ }
+
+ 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);
+ }
+
+ var strategies = [fromCpFilter, fromCache, fromCpOnly, fromRuleBasedJamo, fromData];
+
+ 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;
+ }
+ };
+
+ 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={
+0:{60:[,,{824:8814}],61:[,,{824:8800}],62:[,,{824:8815}],65:[,,{768:192,769:193,770:194,771:195,772:256,774:258,775:550,776:196,777:7842,778:197,780:461,783:512,785:514,803:7840,805:7680,808:260}],66:[,,{775:7682,803:7684,817:7686}],67:[,,{769:262,770:264,775:266,780:268,807:199}],68:[,,{775:7690,780:270,803:7692,807:7696,813:7698,817:7694}],69:[,,{768:200,769:201,770:202,771:7868,772:274,774:276,775:278,776:203,777:7866,780:282,783:516,785:518,803:7864,807:552,808:280,813:7704,816:7706}],70:[,,{775:7710}],71:[,,{769:500,770:284,772:7712,774:286,775:288,780:486,807:290}],72:[,,{770:292,775:7714,776:7718,780:542,803:7716,807:7720,814:7722}],73:[,,{768:204,769:205,770:206,771:296,772:298,774:300,775:304,776:207,777:7880,780:463,783:520,785:522,803:7882,808:302,816:7724}],74:[,,{770:308}],75:[,,{769:7728,780:488,803:7730,807:310,817:7732}],76:[,,{769:313,780:317,803:7734,807:315,813:7740,817:7738}],77:[,,{769:7742,775:7744,803:7746}],78:[,,{768:504,769:323,771:209,775:7748,780:327,803:7750,807:325,813:7754,817:7752}],79:[,,{768:210,769:211,770:212,771:213,772:332,774:334,775:558,776:214,777:7886,779:336,780:465,783:524,785:526,795:416,803:7884,808:490}],80:[,,{769:7764,775:7766}],82:[,,{769:340,775:7768,780:344,783:528,785:530,803:7770,807:342,817:7774}],83:[,,{769:346,770:348,775:7776,780:352,803:7778,806:536,807:350}],84:[,,{775:7786,780:356,803:7788,806:538,807:354,813:7792,817:7790}],85:[,,{768:217,769:218,770:219,771:360,772:362,774:364,776:220,777:7910,778:366,779:368,780:467,783:532,785:534,795:431,803:7908,804:7794,808:370,813:7798,816:7796}],86:[,,{771:7804,803:7806}],87:[,,{768:7808,769:7810,770:372,775:7814,776:7812,803:7816}],88:[,,{775:7818,776:7820}],89:[,,{768:7922,769:221,770:374,771:7928,772:562,775:7822,776:376,777:7926,803:7924}],90:[,,{769:377,770:7824,775:379,780:381,803:7826,817:7828}],97:[,,{768:224,769:225,770:226,771:227,772:257,774:259,775:551,776:228,777:7843,778:229,780:462,783:513,785:515,803:7841,805:7681,808:261}],98:[,,{775:7683,803:7685,817:7687}],99:[,,{769:263,770:265,775:267,780:269,807:231}],100:[,,{775:7691,780:271,803:7693,807:7697,813:7699,817:7695}],101:[,,{768:232,769:233,770:234,771:7869,772:275,774:277,775:279,776:235,777:7867,780:283,783:517,785:519,803:7865,807:553,808:281,813:7705,816:7707}],102:[,,{775:7711}],103:[,,{769:501,770:285,772:7713,774:287,775:289,780:487,807:291}],104:[,,{770:293,775:7715,776:7719,780:543,803:7717,807:7721,814:7723,817:7830}],105:[,,{768:236,769:237,770:238,771:297,772:299,774:301,776:239,777:7881,780:464,783:521,785:523,803:7883,808:303,816:7725}],106:[,,{770:309,780:496}],107:[,,{769:7729,780:489,803:7731,807:311,817:7733}],108:[,,{769:314,780:318,803:7735,807:316,813:7741,817:7739}],109:[,,{769:7743,775:7745,803:7747}],110:[,,{768:505,769:324,771:241,775:7749,780:328,803:7751,807:326,813:7755,817:7753}],111:[,,{768:242,769:243,770:244,771:245,772:333,774:335,775:559,776:246,777:7887,779:337,780:466,783:525,785:527,795:417,803:7885,808:491}],112:[,,{769:7765,775:7767}],114:[,,{769:341,775:7769,780:345,783:529,785:531,803:7771,807:343,817:7775}],115:[,,{769:347,770:349,775:7777,780:353,803:7779,806:537,807:351}],116:[,,{775:7787,776:7831,780:357,803:7789,806:539,807:355,813:7793,817:7791}],117:[,,{768:249,769:250,770:251,771:361,772:363,774:365,776:252,777:7911,778:367,779:369,780:468,783:533,785:535,795:432,803:7909,804:7795,808:371,813:7799,816:7797}],118:[,,{771:7805,803:7807}],119:[,,{768:7809,769:7811,770:373,775:7815,776:7813,778:7832,803:7817}],120:[,,{775:7819,776:7821}],121:[,,{768:7923,769:253,770:375,771:7929,772:563,775:7823,776:255,777:7927,778:7833,803:7925}],122:[,,{769:378,770:7825,775:380,780:382,803:7827,817:7829}],160:[[32],256],168:[[32,776],256,{768:8173,769:901,834:8129}],170:[[97],256],175:[[32,772],256],178:[[50],256],179:[[51],256],180:[[32,769],256],181:[[956],256],184:[[32,807],256],185:[[49],256],186:[[111],256],188:[[49,8260,52],256],189:[[49,8260,50],256],190:[[51,8260,52],256],192:[[65,768]],193:[[65,769]],194:[[65,770],,{768:7846,769:7844,771:7850,777:7848}],195:[[65,771]],196:[[65,776],,{772:478}],197:[[65,778],,{769:506}],198:[,,{769:508,772:482}],199:[[67,807],,{769:7688}],200:[[69,768]],201:[[69,769]],202:[[69,770],,{768:7872,769:7870,771:7876,777:7874}],203:[[69,776]],204:[[73,768]],205:[[73,769]],206:[[73,770]],207:[[73,776],,{769:7726}],209:[[78,771]],210:[[79,768]],211:[[79,769]],212:[[79,770],,{768:7890,769:7888,771:7894,777:7892}],213:[[79,771],,{769:7756,772:556,776:7758}],214:[[79,776],,{772:554}],216:[,,{769:510}],217:[[85,768]],218:[[85,769]],219:[[85,770]],220:[[85,776],,{768:475,769:471,772:469,780:473}],221:[[89,769]],224:[[97,768]],225:[[97,769]],226:[[97,770],,{768:7847,769:7845,771:7851,777:7849}],227:[[97,771]],228:[[97,776],,{772:479}],229:[[97,778],,{769:507}],230:[,,{769:509,772:483}],231:[[99,807],,{769:7689}],232:[[101,768]],233:[[101,769]],234:[[101,770],,{768:7873,769:7871,771:7877,777:7875}],235:[[101,776]],236:[[105,768]],237:[[105,769]],238:[[105,770]],239:[[105,776],,{769:7727}],241:[[110,771]],242:[[111,768]],243:[[111,769]],244:[[111,770],,{768:7891,769:7889,771:7895,777:7893}],245:[[111,771],,{769:7757,772:557,776:7759}],246:[[111,776],,{772:555}],248:[,,{769:511}],249:[[117,768]],250:[[117,769]],251:[[117,770]],252:[[117,776],,{768:476,769:472,772:470,780:474}],253:[[121,769]],255:[[121,776]]},
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+
+};
+
+ /***** Module to export */
+ var unorm = {
+ nfc: nfc,
+ nfd: nfd,
+ nfkc: nfkc,
+ nfkd: nfkd
+ };
+
+ /*globals module:true,define:true*/
+
+ // CommonJS
+ if (typeof module === "object") {
+ module.exports = unorm;
+
+ // AMD
+ } else if (typeof define === "function" && define.amd) {
+ define("unorm", function () {
+ return unorm;
+ });
+
+ // Global
+ } else {
+ root.unorm = unorm;
+ }
+
+ /***** Export as shim for String::normalize method *****/
+ /*
+ http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts#november_8_2013_draft_rev_21
+
+ 21.1.3.12 String.prototype.normalize(form="NFC")
+ When the normalize method is called with one argument form, the following steps are taken:
+
+ 1. Let O be CheckObjectCoercible(this value).
+ 2. Let S be ToString(O).
+ 3. ReturnIfAbrupt(S).
+ 4. If form is not provided or undefined let form be "NFC".
+ 5. Let f be ToString(form).
+ 6. ReturnIfAbrupt(f).
+ 7. If f is not one of "NFC", "NFD", "NFKC", or "NFKD", then throw a RangeError Exception.
+ 8. Let ns be the String value is the result of normalizing S into the normalization form named by f as specified in Unicode Standard Annex #15, UnicodeNormalizatoin Forms.
+ 9. Return ns.
+
+ The length property of the normalize method is 0.
+
+ *NOTE* The normalize function is intentionally generic; it does not require that its this value be a String object. Therefore it can be transferred to other kinds of objects for use as a method.
+ */
+ unorm.shimApplied = false;
+
+ if (!String.prototype.normalize) {
+ String.prototype.normalize = function(form) {
+ var str = "" + this;
+ form = form === undefined ? "NFC" : form;
+
+ if (form === "NFC") {
+ return unorm.nfc(str);
+ } else if (form === "NFD") {
+ return unorm.nfd(str);
+ } else if (form === "NFKC") {
+ return unorm.nfkc(str);
+ } else if (form === "NFKD") {
+ return unorm.nfkd(str);
+ } else {
+ throw new RangeError("Invalid normalization form: " + form);
+ }
+ };
+
+ unorm.shimApplied = true;
+ }
+}(this));
+</script>
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+ <script>(function() {
+ 'use strict';
+
+ /**
+ * Extend an Object with another Object's properties.
+ *
+ * The source objects are specified as additional arguments.
+ *
+ * @param dst Object the object to extend.
+ *
+ * @return Object the final object.
+ */
+ var _extend = function(dst) {
+ var sources = Array.prototype.slice.call(arguments, 1);
+ for (var i=0; i<sources.length; ++i) {
+ var src = sources[i];
+ for (var p in src) {
+ if (src.hasOwnProperty(p)) dst[p] = src[p];
+ }
+ }
+ return dst;
+ };
+
+
+ /**
+ * Defer execution of given function.
+ * @param {Function} func
+ */
+ var _defer = function(func) {
+ if (typeof setImmediate === 'function') {
+ return setImmediate(func);
+ } else {
+ return setTimeout(func, 0);
+ }
+ };
+
+ /**
+ * Based on the algorithm at http://en.wikipedia.org/wiki/Levenshtein_distance.
+ */
+ var Levenshtein = {
+ /**
+ * Calculate levenshtein distance of the two strings.
+ *
+ * @param str1 String the first string.
+ * @param str2 String the second string.
+ * @return Integer the levenshtein distance (0 and above).
+ */
+ get: function(str1, str2) {
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+ if (str2.length === 0) return str1.length;
+
+ // two rows
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+ curCol, nextCol, i, j, tmp;
+
+ // initialise previous row
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+ }
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+
+ for (j=0; j<str2.length; ++j) {
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+
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+ // insertion
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+ nextCol = tmp;
+ }
+ // deletion
+ tmp = prevRow[j + 1] + 1;
+ if (nextCol > tmp) {
+ nextCol = tmp;
+ }
+
+ // copy current col value into previous (in preparation for next iteration)
+ prevRow[j] = curCol;
+ }
+
+ // copy last col value into previous (in preparation for next iteration)
+ prevRow[j] = nextCol;
+ }
+
+ return nextCol;
},
- {
- "name": "nadav",
- "email": "npm@shesek.info"
+
+ /**
+ * Asynchronously calculate levenshtein distance of the two strings.
+ *
+ * @param str1 String the first string.
+ * @param str2 String the second string.
+ * @param cb Function callback function with signature: function(Error err, int distance)
+ * @param [options] Object additional options.
+ * @param [options.progress] Function progress callback with signature: function(percentComplete)
+ */
+ getAsync: function(str1, str2, cb, options) {
+ options = _extend({}, {
+ progress: null
+ }, options);
+
+ // base cases
+ if (str1 === str2) return cb(null, 0);
+ if (str1.length === 0) return cb(null, str2.length);
+ if (str2.length === 0) return cb(null, str1.length);
+
+ // two rows
+ var prevRow = new Array(str2.length + 1),
+ curCol, nextCol,
+ i, j, tmp,
+ startTime, currentTime;
+
+ // initialise previous row
+ for (i=0; i<prevRow.length; ++i) {
+ prevRow[i] = i;
+ }
+
+ nextCol = 1;
+ i = 0;
+ j = -1;
+
+ var __calculate = function() {
+ // reset timer
+ startTime = new Date().valueOf();
+ currentTime = startTime;
+
+ // keep going until one second has elapsed
+ while (currentTime - startTime < 1000) {
+ // reached end of current row?
+ if (str2.length <= (++j)) {
+ // copy current into previous (in preparation for next iteration)
+ prevRow[j] = nextCol;
+
+ // if already done all chars
+ if (str1.length <= (++i)) {
+ return cb(null, nextCol);
+ }
+ // else if we have more left to do
+ else {
+ nextCol = i + 1;
+ j = 0;
+ }
+ }
+
+ // calculation
+ curCol = nextCol;
+
+ // substution
+ nextCol = prevRow[j] + ( (str1.charAt(i) === str2.charAt(j)) ? 0 : 1 );
+ // insertion
+ tmp = curCol + 1;
+ if (nextCol > tmp) {
+ nextCol = tmp;
+ }
+ // deletion
+ tmp = prevRow[j + 1] + 1;
+ if (nextCol > tmp) {
+ nextCol = tmp;
+ }
+
+ // copy current into previous (in preparation for next iteration)
+ prevRow[j] = curCol;
+
+ // get current time
+ currentTime = new Date().valueOf();
+ }
+
+ // send a progress update?
+ if (null !== options.progress) {
+ try {
+ options.progress.call(null, (i * 100.0/ str1.length));
+ } catch (err) {
+ return cb('Progress callback: ' + err.toString());
+ }
+ }
+
+ // next iteration
+ _defer(__calculate);
+ };
+
+ __calculate();
+ }
+
+ };
+
+ // amd
+ if (typeof define !== "undefined" && define !== null && define.amd) {
+ define(function() {
+ return Levenshtein;
+ });
+ }
+ // commonjs
+ else if (typeof module !== "undefined" && module !== null && typeof exports !== "undefined" && module.exports === exports) {
+ module.exports = Levenshtein;
+ }
+ // web worker
+ else if (typeof self !== "undefined" && typeof self.postMessage === 'function' && typeof self.importScripts === 'function') {
+ self.Levenshtein = Levenshtein;
+ }
+ // browser main thread
+ else if (typeof window !== "undefined" && window !== null) {
+ window.Levenshtein = Levenshtein;
+ }
+}());
+
+</script>
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+45,15,67,46,16],[19,148,118,6,149,119],[18,75,47,31,76,48],[34,54,24,34,55,25],[20,45,15,61,46,16]];p.getRSBlocks=function(a,c){var d=p.getRsBlockTable(a,c);if(void 0==d)throw Error("bad rs block @ typeNumber:"+a+"/errorCorrectLevel:"+c);for(var b=d.length/3,e=[],f=0;f<b;f++)for(var h=d[3*f+0],g=d[3*f+1],j=d[3*f+2],l=0;l<h;l++)e.push(new p(g,j));return e};p.getRsBlockTable=function(a,c){switch(c){case 1:return p.RS_BLOCK_TABLE[4*(a-1)+0];case 0:return p.RS_BLOCK_TABLE[4*(a-1)+1];case 3:return p.RS_BLOCK_TABLE[4*
+(a-1)+2];case 2:return p.RS_BLOCK_TABLE[4*(a-1)+3]}};t.prototype={get:function(a){return 1==(this.buffer[Math.floor(a/8)]>>>7-a%8&1)},put:function(a,c){for(var d=0;d<c;d++)this.putBit(1==(a>>>c-d-1&1))},getLengthInBits:function(){return this.length},putBit:function(a){var c=Math.floor(this.length/8);this.buffer.length<=c&&this.buffer.push(0);a&&(this.buffer[c]|=128>>>this.length%8);this.length++}};"string"===typeof h&&(h={text:h});h=r.extend({},{render:"canvas",width:256,height:256,typeNumber:-1,
+correctLevel:2,background:"#ffffff",foreground:"#000000"},h);return this.each(function(){var a;if("canvas"==h.render){a=new o(h.typeNumber,h.correctLevel);a.addData(h.text);a.make();var c=document.createElement("canvas");c.width=h.width;c.height=h.height;for(var d=c.getContext("2d"),b=h.width/a.getModuleCount(),e=h.height/a.getModuleCount(),f=0;f<a.getModuleCount();f++)for(var i=0;i<a.getModuleCount();i++){d.fillStyle=a.isDark(f,i)?h.foreground:h.background;var g=Math.ceil((i+1)*b)-Math.floor(i*b),
+j=Math.ceil((f+1)*b)-Math.floor(f*b);d.fillRect(Math.round(i*b),Math.round(f*e),g,j)}}else{a=new o(h.typeNumber,h.correctLevel);a.addData(h.text);a.make();c=r("<table></table>").css("width",h.width+"px").css("height",h.height+"px").css("border","0px").css("border-collapse","collapse").css("background-color",h.background);d=h.width/a.getModuleCount();b=h.height/a.getModuleCount();for(e=0;e<a.getModuleCount();e++){f=r("<tr></tr>").css("height",b+"px").appendTo(c);for(i=0;i<a.getModuleCount();i++)r("<td></td>").css("width",
+d+"px").css("background-color",a.isDark(e,i)?h.foreground:h.background).appendTo(f)}}a=c;$(a).appendTo(this)})}})($);
+</script>
+ <script>(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.bitcoinjs = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+(function (global){
+'use strict';
+
+// compare and isBuffer taken from https://github.com/feross/buffer/blob/680e9e5e488f22aac27599a57dc844a6315928dd/index.js
+// original notice:
+
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license MIT
+ */
+function compare(a, b) {
+ if (a === b) {
+ return 0;
+ }
+
+ var x = a.length;
+ var y = b.length;
+
+ for (var i = 0, len = Math.min(x, y); i < len; ++i) {
+ if (a[i] !== b[i]) {
+ x = a[i];
+ y = b[i];
+ break;
+ }
+ }
+
+ if (x < y) {
+ return -1;
+ }
+ if (y < x) {
+ return 1;
+ }
+ return 0;
+}
+function isBuffer(b) {
+ if (global.Buffer && typeof global.Buffer.isBuffer === 'function') {
+ return global.Buffer.isBuffer(b);
+ }
+ return !!(b != null && b._isBuffer);
+}
+
+// based on node assert, original notice:
+
+// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
+//
+// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
+//
+// Originally from narwhal.js (http://narwhaljs.org)
+// Copyright (c) 2009 Thomas Robinson <280north.com>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the 'Software'), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var util = require('util/');
+var hasOwn = Object.prototype.hasOwnProperty;
+var pSlice = Array.prototype.slice;
+var functionsHaveNames = (function () {
+ return function foo() {}.name === 'foo';
+}());
+function pToString (obj) {
+ return Object.prototype.toString.call(obj);
+}
+function isView(arrbuf) {
+ if (isBuffer(arrbuf)) {
+ return false;
+ }
+ if (typeof global.ArrayBuffer !== 'function') {
+ return false;
+ }
+ if (typeof ArrayBuffer.isView === 'function') {
+ return ArrayBuffer.isView(arrbuf);
+ }
+ if (!arrbuf) {
+ return false;
+ }
+ if (arrbuf instanceof DataView) {
+ return true;
+ }
+ if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) {
+ return true;
+ }
+ return false;
+}
+// 1. The assert module provides functions that throw
+// AssertionError's when particular conditions are not met. The
+// assert module must conform to the following interface.
+
+var assert = module.exports = ok;
+
+// 2. The AssertionError is defined in assert.
+// new assert.AssertionError({ message: message,
+// actual: actual,
+// expected: expected })
+
+var regex = /\s*function\s+([^\(\s]*)\s*/;
+// based on https://github.com/ljharb/function.prototype.name/blob/adeeeec8bfcc6068b187d7d9fb3d5bb1d3a30899/implementation.js
+function getName(func) {
+ if (!util.isFunction(func)) {
+ return;
+ }
+ if (functionsHaveNames) {
+ return func.name;
+ }
+ var str = func.toString();
+ var match = str.match(regex);
+ return match && match[1];
+}
+assert.AssertionError = function AssertionError(options) {
+ this.name = 'AssertionError';
+ this.actual = options.actual;
+ this.expected = options.expected;
+ this.operator = options.operator;
+ if (options.message) {
+ this.message = options.message;
+ this.generatedMessage = false;
+ } else {
+ this.message = getMessage(this);
+ this.generatedMessage = true;
+ }
+ var stackStartFunction = options.stackStartFunction || fail;
+ if (Error.captureStackTrace) {
+ Error.captureStackTrace(this, stackStartFunction);
+ } else {
+ // non v8 browsers so we can have a stacktrace
+ var err = new Error();
+ if (err.stack) {
+ var out = err.stack;
+
+ // try to strip useless frames
+ var fn_name = getName(stackStartFunction);
+ var idx = out.indexOf('\n' + fn_name);
+ if (idx >= 0) {
+ // once we have located the function frame
+ // we need to strip out everything before it (and its line)
+ var next_line = out.indexOf('\n', idx + 1);
+ out = out.substring(next_line + 1);
+ }
+
+ this.stack = out;
+ }
+ }
+};
+
+// assert.AssertionError instanceof Error
+util.inherits(assert.AssertionError, Error);
+
+function truncate(s, n) {
+ if (typeof s === 'string') {
+ return s.length < n ? s : s.slice(0, n);
+ } else {
+ return s;
+ }
+}
+function inspect(something) {
+ if (functionsHaveNames || !util.isFunction(something)) {
+ return util.inspect(something);
+ }
+ var rawname = getName(something);
+ var name = rawname ? ': ' + rawname : '';
+ return '[Function' + name + ']';
+}
+function getMessage(self) {
+ return truncate(inspect(self.actual), 128) + ' ' +
+ self.operator + ' ' +
+ truncate(inspect(self.expected), 128);
+}
+
+// At present only the three keys mentioned above are used and
+// understood by the spec. Implementations or sub modules can pass
+// other keys to the AssertionError's constructor - they will be
+// ignored.
+
+// 3. All of the following functions must throw an AssertionError
+// when a corresponding condition is not met, with a message that
+// may be undefined if not provided. All assertion methods provide
+// both the actual and expected values to the assertion error for
+// display purposes.
+
+function fail(actual, expected, message, operator, stackStartFunction) {
+ throw new assert.AssertionError({
+ message: message,
+ actual: actual,
+ expected: expected,
+ operator: operator,
+ stackStartFunction: stackStartFunction
+ });
+}
+
+// EXTENSION! allows for well behaved errors defined elsewhere.
+assert.fail = fail;
+
+// 4. Pure assertion tests whether a value is truthy, as determined
+// by !!guard.
+// assert.ok(guard, message_opt);
+// This statement is equivalent to assert.equal(true, !!guard,
+// message_opt);. To test strictly for the value true, use
+// assert.strictEqual(true, guard, message_opt);.
+
+function ok(value, message) {
+ if (!value) fail(value, true, message, '==', assert.ok);
+}
+assert.ok = ok;
+
+// 5. The equality assertion tests shallow, coercive equality with
+// ==.
+// assert.equal(actual, expected, message_opt);
+
+assert.equal = function equal(actual, expected, message) {
+ if (actual != expected) fail(actual, expected, message, '==', assert.equal);
+};
+
+// 6. The non-equality assertion tests for whether two objects are not equal
+// with != assert.notEqual(actual, expected, message_opt);
+
+assert.notEqual = function notEqual(actual, expected, message) {
+ if (actual == expected) {
+ fail(actual, expected, message, '!=', assert.notEqual);
+ }
+};
+
+// 7. The equivalence assertion tests a deep equality relation.
+// assert.deepEqual(actual, expected, message_opt);
+
+assert.deepEqual = function deepEqual(actual, expected, message) {
+ if (!_deepEqual(actual, expected, false)) {
+ fail(actual, expected, message, 'deepEqual', assert.deepEqual);
+ }
+};
+
+assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) {
+ if (!_deepEqual(actual, expected, true)) {
+ fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual);
+ }
+};
+
+function _deepEqual(actual, expected, strict, memos) {
+ // 7.1. All identical values are equivalent, as determined by ===.
+ if (actual === expected) {
+ return true;
+ } else if (isBuffer(actual) && isBuffer(expected)) {
+ return compare(actual, expected) === 0;
+
+ // 7.2. If the expected value is a Date object, the actual value is
+ // equivalent if it is also a Date object that refers to the same time.
+ } else if (util.isDate(actual) && util.isDate(expected)) {
+ return actual.getTime() === expected.getTime();
+
+ // 7.3 If the expected value is a RegExp object, the actual value is
+ // equivalent if it is also a RegExp object with the same source and
+ // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
+ } else if (util.isRegExp(actual) && util.isRegExp(expected)) {
+ return actual.source === expected.source &&
+ actual.global === expected.global &&
+ actual.multiline === expected.multiline &&
+ actual.lastIndex === expected.lastIndex &&
+ actual.ignoreCase === expected.ignoreCase;
+
+ // 7.4. Other pairs that do not both pass typeof value == 'object',
+ // equivalence is determined by ==.
+ } else if ((actual === null || typeof actual !== 'object') &&
+ (expected === null || typeof expected !== 'object')) {
+ return strict ? actual === expected : actual == expected;
+
+ // If both values are instances of typed arrays, wrap their underlying
+ // ArrayBuffers in a Buffer each to increase performance
+ // This optimization requires the arrays to have the same type as checked by
+ // Object.prototype.toString (aka pToString). Never perform binary
+ // comparisons for Float*Arrays, though, since e.g. +0 === -0 but their
+ // bit patterns are not identical.
+ } else if (isView(actual) && isView(expected) &&
+ pToString(actual) === pToString(expected) &&
+ !(actual instanceof Float32Array ||
+ actual instanceof Float64Array)) {
+ return compare(new Uint8Array(actual.buffer),
+ new Uint8Array(expected.buffer)) === 0;
+
+ // 7.5 For all other Object pairs, including Array objects, equivalence is
+ // determined by having the same number of owned properties (as verified
+ // with Object.prototype.hasOwnProperty.call), the same set of keys
+ // (although not necessarily the same order), equivalent values for every
+ // corresponding key, and an identical 'prototype' property. Note: this
+ // accounts for both named and indexed properties on Arrays.
+ } else if (isBuffer(actual) !== isBuffer(expected)) {
+ return false;
+ } else {
+ memos = memos || {actual: [], expected: []};
+
+ var actualIndex = memos.actual.indexOf(actual);
+ if (actualIndex !== -1) {
+ if (actualIndex === memos.expected.indexOf(expected)) {
+ return true;
+ }
+ }
+
+ memos.actual.push(actual);
+ memos.expected.push(expected);
+
+ return objEquiv(actual, expected, strict, memos);
+ }
+}
+
+function isArguments(object) {
+ return Object.prototype.toString.call(object) == '[object Arguments]';
+}
+
+function objEquiv(a, b, strict, actualVisitedObjects) {
+ if (a === null || a === undefined || b === null || b === undefined)
+ return false;
+ // if one is a primitive, the other must be same
+ if (util.isPrimitive(a) || util.isPrimitive(b))
+ return a === b;
+ if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b))
+ return false;
+ var aIsArgs = isArguments(a);
+ var bIsArgs = isArguments(b);
+ if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
+ return false;
+ if (aIsArgs) {
+ a = pSlice.call(a);
+ b = pSlice.call(b);
+ return _deepEqual(a, b, strict);
+ }
+ var ka = objectKeys(a);
+ var kb = objectKeys(b);
+ var key, i;
+ // having the same number of owned properties (keys incorporates
+ // hasOwnProperty)
+ if (ka.length !== kb.length)
+ return false;
+ //the same set of keys (although not necessarily the same order),
+ ka.sort();
+ kb.sort();
+ //~~~cheap key test
+ for (i = ka.length - 1; i >= 0; i--) {
+ if (ka[i] !== kb[i])
+ return false;
+ }
+ //equivalent values for every corresponding key, and
+ //~~~possibly expensive deep test
+ for (i = ka.length - 1; i >= 0; i--) {
+ key = ka[i];
+ if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects))
+ return false;
+ }
+ return true;
+}
+
+// 8. The non-equivalence assertion tests for any deep inequality.
+// assert.notDeepEqual(actual, expected, message_opt);
+
+assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
+ if (_deepEqual(actual, expected, false)) {
+ fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
+ }
+};
+
+assert.notDeepStrictEqual = notDeepStrictEqual;
+function notDeepStrictEqual(actual, expected, message) {
+ if (_deepEqual(actual, expected, true)) {
+ fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual);
+ }
+}
+
+
+// 9. The strict equality assertion tests strict equality, as determined by ===.
+// assert.strictEqual(actual, expected, message_opt);
+
+assert.strictEqual = function strictEqual(actual, expected, message) {
+ if (actual !== expected) {
+ fail(actual, expected, message, '===', assert.strictEqual);
+ }
+};
+
+// 10. The strict non-equality assertion tests for strict inequality, as
+// determined by !==. assert.notStrictEqual(actual, expected, message_opt);
+
+assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
+ if (actual === expected) {
+ fail(actual, expected, message, '!==', assert.notStrictEqual);
+ }
+};
+
+function expectedException(actual, expected) {
+ if (!actual || !expected) {
+ return false;
+ }
+
+ if (Object.prototype.toString.call(expected) == '[object RegExp]') {
+ return expected.test(actual);
+ }
+
+ try {
+ if (actual instanceof expected) {
+ return true;
+ }
+ } catch (e) {
+ // Ignore. The instanceof check doesn't work for arrow functions.
+ }
+
+ if (Error.isPrototypeOf(expected)) {
+ return false;
+ }
+
+ return expected.call({}, actual) === true;
+}
+
+function _tryBlock(block) {
+ var error;
+ try {
+ block();
+ } catch (e) {
+ error = e;
+ }
+ return error;
+}
+
+function _throws(shouldThrow, block, expected, message) {
+ var actual;
+
+ if (typeof block !== 'function') {
+ throw new TypeError('"block" argument must be a function');
+ }
+
+ if (typeof expected === 'string') {
+ message = expected;
+ expected = null;
+ }
+
+ actual = _tryBlock(block);
+
+ message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
+ (message ? ' ' + message : '.');
+
+ if (shouldThrow && !actual) {
+ fail(actual, expected, 'Missing expected exception' + message);
+ }
+
+ var userProvidedMessage = typeof message === 'string';
+ var isUnwantedException = !shouldThrow && util.isError(actual);
+ var isUnexpectedException = !shouldThrow && actual && !expected;
+
+ if ((isUnwantedException &&
+ userProvidedMessage &&
+ expectedException(actual, expected)) ||
+ isUnexpectedException) {
+ fail(actual, expected, 'Got unwanted exception' + message);
+ }
+
+ if ((shouldThrow && actual && expected &&
+ !expectedException(actual, expected)) || (!shouldThrow && actual)) {
+ throw actual;
+ }
+}
+
+// 11. Expected to throw an error:
+// assert.throws(block, Error_opt, message_opt);
+
+assert.throws = function(block, /*optional*/error, /*optional*/message) {
+ _throws(true, block, error, message);
+};
+
+// EXTENSION! This is annoying to write outside this module.
+assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) {
+ _throws(false, block, error, message);
+};
+
+assert.ifError = function(err) { if (err) throw err; };
+
+var objectKeys = Object.keys || function (obj) {
+ var keys = [];
+ for (var key in obj) {
+ if (hasOwn.call(obj, key)) keys.push(key);
+ }
+ return keys;
+};
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"util/":32}],2:[function(require,module,exports){
+'use strict'
+
+exports.byteLength = byteLength
+exports.toByteArray = toByteArray
+exports.fromByteArray = fromByteArray
+
+var lookup = []
+var revLookup = []
+var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
+
+var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+for (var i = 0, len = code.length; i < len; ++i) {
+ lookup[i] = code[i]
+ revLookup[code.charCodeAt(i)] = i
+}
+
+revLookup['-'.charCodeAt(0)] = 62
+revLookup['_'.charCodeAt(0)] = 63
+
+function placeHoldersCount (b64) {
+ var len = b64.length
+ if (len % 4 > 0) {
+ throw new Error('Invalid string. Length must be a multiple of 4')
+ }
+
+ // the number of equal signs (place holders)
+ // if there are two placeholders, than the two characters before it
+ // represent one byte
+ // if there is only one, then the three characters before it represent 2 bytes
+ // this is just a cheap hack to not do indexOf twice
+ return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
+}
+
+function byteLength (b64) {
+ // base64 is 4/3 + up to two characters of the original data
+ return (b64.length * 3 / 4) - placeHoldersCount(b64)
+}
+
+function toByteArray (b64) {
+ var i, l, tmp, placeHolders, arr
+ var len = b64.length
+ placeHolders = placeHoldersCount(b64)
+
+ arr = new Arr((len * 3 / 4) - placeHolders)
+
+ // if there are placeholders, only get up to the last complete 4 chars
+ l = placeHolders > 0 ? len - 4 : len
+
+ var L = 0
+
+ for (i = 0; i < l; i += 4) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
+ arr[L++] = (tmp >> 16) & 0xFF
+ arr[L++] = (tmp >> 8) & 0xFF
+ arr[L++] = tmp & 0xFF
+ }
+
+ if (placeHolders === 2) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
+ arr[L++] = tmp & 0xFF
+ } else if (placeHolders === 1) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
+ arr[L++] = (tmp >> 8) & 0xFF
+ arr[L++] = tmp & 0xFF
+ }
+
+ return arr
+}
+
+function tripletToBase64 (num) {
+ return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
+}
+
+function encodeChunk (uint8, start, end) {
+ var tmp
+ var output = []
+ for (var i = start; i < end; i += 3) {
+ tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
+ output.push(tripletToBase64(tmp))
+ }
+ return output.join('')
+}
+
+function fromByteArray (uint8) {
+ var tmp
+ var len = uint8.length
+ var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
+ var output = ''
+ var parts = []
+ var maxChunkLength = 16383 // must be multiple of 3
+
+ // go through the array every three bytes, we'll deal with trailing stuff later
+ for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
+ parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
+ }
+
+ // pad the end with zeros, but make sure to not forget the extra bytes
+ if (extraBytes === 1) {
+ tmp = uint8[len - 1]
+ output += lookup[tmp >> 2]
+ output += lookup[(tmp << 4) & 0x3F]
+ output += '=='
+ } else if (extraBytes === 2) {
+ tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
+ output += lookup[tmp >> 10]
+ output += lookup[(tmp >> 4) & 0x3F]
+ output += lookup[(tmp << 2) & 0x3F]
+ output += '='
+ }
+
+ parts.push(output)
+
+ return parts.join('')
+}
+
+},{}],3:[function(require,module,exports){
+
+},{}],4:[function(require,module,exports){
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license MIT
+ */
+/* eslint-disable no-proto */
+
+'use strict'
+
+var base64 = require('base64-js')
+var ieee754 = require('ieee754')
+
+exports.Buffer = Buffer
+exports.SlowBuffer = SlowBuffer
+exports.INSPECT_MAX_BYTES = 50
+
+var K_MAX_LENGTH = 0x7fffffff
+exports.kMaxLength = K_MAX_LENGTH
+
+/**
+ * If `Buffer.TYPED_ARRAY_SUPPORT`:
+ * === true Use Uint8Array implementation (fastest)
+ * === false Print warning and recommend using `buffer` v4.x which has an Object
+ * implementation (most compatible, even IE6)
+ *
+ * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
+ * Opera 11.6+, iOS 4.2+.
+ *
+ * We report that the browser does not support typed arrays if the are not subclassable
+ * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
+ * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
+ * for __proto__ and has a buggy typed array implementation.
+ */
+Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
+
+if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
+ typeof console.error === 'function') {
+ console.error(
+ 'This browser lacks typed array (Uint8Array) support which is required by ' +
+ '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
+ )
+}
+
+function typedArraySupport () {
+ // Can typed array instances can be augmented?
+ try {
+ var arr = new Uint8Array(1)
+ arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
+ return arr.foo() === 42
+ } catch (e) {
+ return false
+ }
+}
+
+function createBuffer (length) {
+ if (length > K_MAX_LENGTH) {
+ throw new RangeError('Invalid typed array length')
+ }
+ // Return an augmented `Uint8Array` instance
+ var buf = new Uint8Array(length)
+ buf.__proto__ = Buffer.prototype
+ return buf
+}
+
+/**
+ * The Buffer constructor returns instances of `Uint8Array` that have their
+ * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
+ * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
+ * and the `Uint8Array` methods. Square bracket notation works as expected -- it
+ * returns a single octet.
+ *
+ * The `Uint8Array` prototype remains unmodified.
+ */
+
+function Buffer (arg, encodingOrOffset, length) {
+ // Common case.
+ if (typeof arg === 'number') {
+ if (typeof encodingOrOffset === 'string') {
+ throw new Error(
+ 'If encoding is specified then the first argument must be a string'
+ )
+ }
+ return allocUnsafe(arg)
+ }
+ return from(arg, encodingOrOffset, length)
+}
+
+// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
+if (typeof Symbol !== 'undefined' && Symbol.species &&
+ Buffer[Symbol.species] === Buffer) {
+ Object.defineProperty(Buffer, Symbol.species, {
+ value: null,
+ configurable: true,
+ enumerable: false,
+ writable: false
+ })
+}
+
+Buffer.poolSize = 8192 // not used by this implementation
+
+function from (value, encodingOrOffset, length) {
+ if (typeof value === 'number') {
+ throw new TypeError('"value" argument must not be a number')
+ }
+
+ if (value instanceof ArrayBuffer) {
+ return fromArrayBuffer(value, encodingOrOffset, length)
+ }
+
+ if (typeof value === 'string') {
+ return fromString(value, encodingOrOffset)
+ }
+
+ return fromObject(value)
+}
+
+/**
+ * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
+ * if value is a number.
+ * Buffer.from(str[, encoding])
+ * Buffer.from(array)
+ * Buffer.from(buffer)
+ * Buffer.from(arrayBuffer[, byteOffset[, length]])
+ **/
+Buffer.from = function (value, encodingOrOffset, length) {
+ return from(value, encodingOrOffset, length)
+}
+
+// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
+// https://github.com/feross/buffer/pull/148
+Buffer.prototype.__proto__ = Uint8Array.prototype
+Buffer.__proto__ = Uint8Array
+
+function assertSize (size) {
+ if (typeof size !== 'number') {
+ throw new TypeError('"size" argument must be a number')
+ } else if (size < 0) {
+ throw new RangeError('"size" argument must not be negative')
+ }
+}
+
+function alloc (size, fill, encoding) {
+ assertSize(size)
+ if (size <= 0) {
+ return createBuffer(size)
+ }
+ if (fill !== undefined) {
+ // Only pay attention to encoding if it's a string. This
+ // prevents accidentally sending in a number that would
+ // be interpretted as a start offset.
+ return typeof encoding === 'string'
+ ? createBuffer(size).fill(fill, encoding)
+ : createBuffer(size).fill(fill)
+ }
+ return createBuffer(size)
+}
+
+/**
+ * Creates a new filled Buffer instance.
+ * alloc(size[, fill[, encoding]])
+ **/
+Buffer.alloc = function (size, fill, encoding) {
+ return alloc(size, fill, encoding)
+}
+
+function allocUnsafe (size) {
+ assertSize(size)
+ return createBuffer(size < 0 ? 0 : checked(size) | 0)
+}
+
+/**
+ * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
+ * */
+Buffer.allocUnsafe = function (size) {
+ return allocUnsafe(size)
+}
+/**
+ * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
+ */
+Buffer.allocUnsafeSlow = function (size) {
+ return allocUnsafe(size)
+}
+
+function fromString (string, encoding) {
+ if (typeof encoding !== 'string' || encoding === '') {
+ encoding = 'utf8'
+ }
+
+ if (!Buffer.isEncoding(encoding)) {
+ throw new TypeError('"encoding" must be a valid string encoding')
+ }
+
+ var length = byteLength(string, encoding) | 0
+ var buf = createBuffer(length)
+
+ var actual = buf.write(string, encoding)
+
+ if (actual !== length) {
+ // Writing a hex string, for example, that contains invalid characters will
+ // cause everything after the first invalid character to be ignored. (e.g.
+ // 'abxxcd' will be treated as 'ab')
+ buf = buf.slice(0, actual)
+ }
+
+ return buf
+}
+
+function fromArrayLike (array) {
+ var length = array.length < 0 ? 0 : checked(array.length) | 0
+ var buf = createBuffer(length)
+ for (var i = 0; i < length; i += 1) {
+ buf[i] = array[i] & 255
+ }
+ return buf
+}
+
+function fromArrayBuffer (array, byteOffset, length) {
+ if (byteOffset < 0 || array.byteLength < byteOffset) {
+ throw new RangeError('\'offset\' is out of bounds')
+ }
+
+ if (array.byteLength < byteOffset + (length || 0)) {
+ throw new RangeError('\'length\' is out of bounds')
+ }
+
+ var buf
+ if (byteOffset === undefined && length === undefined) {
+ buf = new Uint8Array(array)
+ } else if (length === undefined) {
+ buf = new Uint8Array(array, byteOffset)
+ } else {
+ buf = new Uint8Array(array, byteOffset, length)
+ }
+
+ // Return an augmented `Uint8Array` instance
+ buf.__proto__ = Buffer.prototype
+ return buf
+}
+
+function fromObject (obj) {
+ if (Buffer.isBuffer(obj)) {
+ var len = checked(obj.length) | 0
+ var buf = createBuffer(len)
+
+ if (buf.length === 0) {
+ return buf
+ }
+
+ obj.copy(buf, 0, 0, len)
+ return buf
+ }
+
+ if (obj) {
+ if (isArrayBufferView(obj) || 'length' in obj) {
+ if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
+ return createBuffer(0)
+ }
+ return fromArrayLike(obj)
+ }
+
+ if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
+ return fromArrayLike(obj.data)
+ }
+ }
+
+ throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
+}
+
+function checked (length) {
+ // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
+ // length is NaN (which is otherwise coerced to zero.)
+ if (length >= K_MAX_LENGTH) {
+ throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
+ 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
+ }
+ return length | 0
+}
+
+function SlowBuffer (length) {
+ if (+length != length) { // eslint-disable-line eqeqeq
+ length = 0
+ }
+ return Buffer.alloc(+length)
+}
+
+Buffer.isBuffer = function isBuffer (b) {
+ return b != null && b._isBuffer === true
+}
+
+Buffer.compare = function compare (a, b) {
+ if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
+ throw new TypeError('Arguments must be Buffers')
+ }
+
+ if (a === b) return 0
+
+ var x = a.length
+ var y = b.length
+
+ for (var i = 0, len = Math.min(x, y); i < len; ++i) {
+ if (a[i] !== b[i]) {
+ x = a[i]
+ y = b[i]
+ break
+ }
+ }
+
+ if (x < y) return -1
+ if (y < x) return 1
+ return 0
+}
+
+Buffer.isEncoding = function isEncoding (encoding) {
+ switch (String(encoding).toLowerCase()) {
+ case 'hex':
+ case 'utf8':
+ case 'utf-8':
+ case 'ascii':
+ case 'latin1':
+ case 'binary':
+ case 'base64':
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return true
+ default:
+ return false
+ }
+}
+
+Buffer.concat = function concat (list, length) {
+ if (!Array.isArray(list)) {
+ throw new TypeError('"list" argument must be an Array of Buffers')
+ }
+
+ if (list.length === 0) {
+ return Buffer.alloc(0)
+ }
+
+ var i
+ if (length === undefined) {
+ length = 0
+ for (i = 0; i < list.length; ++i) {
+ length += list[i].length
+ }
+ }
+
+ var buffer = Buffer.allocUnsafe(length)
+ var pos = 0
+ for (i = 0; i < list.length; ++i) {
+ var buf = list[i]
+ if (!Buffer.isBuffer(buf)) {
+ throw new TypeError('"list" argument must be an Array of Buffers')
+ }
+ buf.copy(buffer, pos)
+ pos += buf.length
+ }
+ return buffer
+}
+
+function byteLength (string, encoding) {
+ if (Buffer.isBuffer(string)) {
+ return string.length
+ }
+ if (isArrayBufferView(string) || string instanceof ArrayBuffer) {
+ return string.byteLength
+ }
+ if (typeof string !== 'string') {
+ string = '' + string
+ }
+
+ var len = string.length
+ if (len === 0) return 0
+
+ // Use a for loop to avoid recursion
+ var loweredCase = false
+ for (;;) {
+ switch (encoding) {
+ case 'ascii':
+ case 'latin1':
+ case 'binary':
+ return len
+ case 'utf8':
+ case 'utf-8':
+ case undefined:
+ return utf8ToBytes(string).length
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return len * 2
+ case 'hex':
+ return len >>> 1
+ case 'base64':
+ return base64ToBytes(string).length
+ default:
+ if (loweredCase) return utf8ToBytes(string).length // assume utf8
+ encoding = ('' + encoding).toLowerCase()
+ loweredCase = true
+ }
+ }
+}
+Buffer.byteLength = byteLength
+
+function slowToString (encoding, start, end) {
+ var loweredCase = false
+
+ // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
+ // property of a typed array.
+
+ // This behaves neither like String nor Uint8Array in that we set start/end
+ // to their upper/lower bounds if the value passed is out of range.
+ // undefined is handled specially as per ECMA-262 6th Edition,
+ // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
+ if (start === undefined || start < 0) {
+ start = 0
+ }
+ // Return early if start > this.length. Done here to prevent potential uint32
+ // coercion fail below.
+ if (start > this.length) {
+ return ''
+ }
+
+ if (end === undefined || end > this.length) {
+ end = this.length
+ }
+
+ if (end <= 0) {
+ return ''
+ }
+
+ // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
+ end >>>= 0
+ start >>>= 0
+
+ if (end <= start) {
+ return ''
+ }
+
+ if (!encoding) encoding = 'utf8'
+
+ while (true) {
+ switch (encoding) {
+ case 'hex':
+ return hexSlice(this, start, end)
+
+ case 'utf8':
+ case 'utf-8':
+ return utf8Slice(this, start, end)
+
+ case 'ascii':
+ return asciiSlice(this, start, end)
+
+ case 'latin1':
+ case 'binary':
+ return latin1Slice(this, start, end)
+
+ case 'base64':
+ return base64Slice(this, start, end)
+
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return utf16leSlice(this, start, end)
+
+ default:
+ if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+ encoding = (encoding + '').toLowerCase()
+ loweredCase = true
+ }
+ }
+}
+
+// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
+// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
+// reliably in a browserify context because there could be multiple different
+// copies of the 'buffer' package in use. This method works even for Buffer
+// instances that were created from another copy of the `buffer` package.
+// See: https://github.com/feross/buffer/issues/154
+Buffer.prototype._isBuffer = true
+
+function swap (b, n, m) {
+ var i = b[n]
+ b[n] = b[m]
+ b[m] = i
+}
+
+Buffer.prototype.swap16 = function swap16 () {
+ var len = this.length
+ if (len % 2 !== 0) {
+ throw new RangeError('Buffer size must be a multiple of 16-bits')
+ }
+ for (var i = 0; i < len; i += 2) {
+ swap(this, i, i + 1)
+ }
+ return this
+}
+
+Buffer.prototype.swap32 = function swap32 () {
+ var len = this.length
+ if (len % 4 !== 0) {
+ throw new RangeError('Buffer size must be a multiple of 32-bits')
+ }
+ for (var i = 0; i < len; i += 4) {
+ swap(this, i, i + 3)
+ swap(this, i + 1, i + 2)
+ }
+ return this
+}
+
+Buffer.prototype.swap64 = function swap64 () {
+ var len = this.length
+ if (len % 8 !== 0) {
+ throw new RangeError('Buffer size must be a multiple of 64-bits')
+ }
+ for (var i = 0; i < len; i += 8) {
+ swap(this, i, i + 7)
+ swap(this, i + 1, i + 6)
+ swap(this, i + 2, i + 5)
+ swap(this, i + 3, i + 4)
+ }
+ return this
+}
+
+Buffer.prototype.toString = function toString () {
+ var length = this.length
+ if (length === 0) return ''
+ if (arguments.length === 0) return utf8Slice(this, 0, length)
+ return slowToString.apply(this, arguments)
+}
+
+Buffer.prototype.equals = function equals (b) {
+ if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
+ if (this === b) return true
+ return Buffer.compare(this, b) === 0
+}
+
+Buffer.prototype.inspect = function inspect () {
+ var str = ''
+ var max = exports.INSPECT_MAX_BYTES
+ if (this.length > 0) {
+ str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
+ if (this.length > max) str += ' ... '
+ }
+ return '<Buffer ' + str + '>'
+}
+
+Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
+ if (!Buffer.isBuffer(target)) {
+ throw new TypeError('Argument must be a Buffer')
+ }
+
+ if (start === undefined) {
+ start = 0
+ }
+ if (end === undefined) {
+ end = target ? target.length : 0
+ }
+ if (thisStart === undefined) {
+ thisStart = 0
+ }
+ if (thisEnd === undefined) {
+ thisEnd = this.length
+ }
+
+ if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
+ throw new RangeError('out of range index')
+ }
+
+ if (thisStart >= thisEnd && start >= end) {
+ return 0
+ }
+ if (thisStart >= thisEnd) {
+ return -1
+ }
+ if (start >= end) {
+ return 1
+ }
+
+ start >>>= 0
+ end >>>= 0
+ thisStart >>>= 0
+ thisEnd >>>= 0
+
+ if (this === target) return 0
+
+ var x = thisEnd - thisStart
+ var y = end - start
+ var len = Math.min(x, y)
+
+ var thisCopy = this.slice(thisStart, thisEnd)
+ var targetCopy = target.slice(start, end)
+
+ for (var i = 0; i < len; ++i) {
+ if (thisCopy[i] !== targetCopy[i]) {
+ x = thisCopy[i]
+ y = targetCopy[i]
+ break
+ }
+ }
+
+ if (x < y) return -1
+ if (y < x) return 1
+ return 0
+}
+
+// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
+// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
+//
+// Arguments:
+// - buffer - a Buffer to search
+// - val - a string, Buffer, or number
+// - byteOffset - an index into `buffer`; will be clamped to an int32
+// - encoding - an optional encoding, relevant is val is a string
+// - dir - true for indexOf, false for lastIndexOf
+function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
+ // Empty buffer means no match
+ if (buffer.length === 0) return -1
+
+ // Normalize byteOffset
+ if (typeof byteOffset === 'string') {
+ encoding = byteOffset
+ byteOffset = 0
+ } else if (byteOffset > 0x7fffffff) {
+ byteOffset = 0x7fffffff
+ } else if (byteOffset < -0x80000000) {
+ byteOffset = -0x80000000
+ }
+ byteOffset = +byteOffset // Coerce to Number.
+ if (numberIsNaN(byteOffset)) {
+ // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
+ byteOffset = dir ? 0 : (buffer.length - 1)
+ }
+
+ // Normalize byteOffset: negative offsets start from the end of the buffer
+ if (byteOffset < 0) byteOffset = buffer.length + byteOffset
+ if (byteOffset >= buffer.length) {
+ if (dir) return -1
+ else byteOffset = buffer.length - 1
+ } else if (byteOffset < 0) {
+ if (dir) byteOffset = 0
+ else return -1
+ }
+
+ // Normalize val
+ if (typeof val === 'string') {
+ val = Buffer.from(val, encoding)
+ }
+
+ // Finally, search either indexOf (if dir is true) or lastIndexOf
+ if (Buffer.isBuffer(val)) {
+ // Special case: looking for empty string/buffer always fails
+ if (val.length === 0) {
+ return -1
+ }
+ return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
+ } else if (typeof val === 'number') {
+ val = val & 0xFF // Search for a byte value [0-255]
+ if (typeof Uint8Array.prototype.indexOf === 'function') {
+ if (dir) {
+ return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
+ } else {
+ return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
+ }
+ }
+ return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
+ }
+
+ throw new TypeError('val must be string, number or Buffer')
+}
+
+function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
+ var indexSize = 1
+ var arrLength = arr.length
+ var valLength = val.length
+
+ if (encoding !== undefined) {
+ encoding = String(encoding).toLowerCase()
+ if (encoding === 'ucs2' || encoding === 'ucs-2' ||
+ encoding === 'utf16le' || encoding === 'utf-16le') {
+ if (arr.length < 2 || val.length < 2) {
+ return -1
+ }
+ indexSize = 2
+ arrLength /= 2
+ valLength /= 2
+ byteOffset /= 2
+ }
+ }
+
+ function read (buf, i) {
+ if (indexSize === 1) {
+ return buf[i]
+ } else {
+ return buf.readUInt16BE(i * indexSize)
+ }
+ }
+
+ var i
+ if (dir) {
+ var foundIndex = -1
+ for (i = byteOffset; i < arrLength; i++) {
+ if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
+ if (foundIndex === -1) foundIndex = i
+ if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
+ } else {
+ if (foundIndex !== -1) i -= i - foundIndex
+ foundIndex = -1
+ }
+ }
+ } else {
+ if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
+ for (i = byteOffset; i >= 0; i--) {
+ var found = true
+ for (var j = 0; j < valLength; j++) {
+ if (read(arr, i + j) !== read(val, j)) {
+ found = false
+ break
+ }
+ }
+ if (found) return i
+ }
+ }
+
+ return -1
+}
+
+Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
+ return this.indexOf(val, byteOffset, encoding) !== -1
+}
+
+Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
+ return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
+}
+
+Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
+ return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
+}
+
+function hexWrite (buf, string, offset, length) {
+ offset = Number(offset) || 0
+ var remaining = buf.length - offset
+ if (!length) {
+ length = remaining
+ } else {
+ length = Number(length)
+ if (length > remaining) {
+ length = remaining
+ }
+ }
+
+ // must be an even number of digits
+ var strLen = string.length
+ if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
+
+ if (length > strLen / 2) {
+ length = strLen / 2
+ }
+ for (var i = 0; i < length; ++i) {
+ var parsed = parseInt(string.substr(i * 2, 2), 16)
+ if (numberIsNaN(parsed)) return i
+ buf[offset + i] = parsed
+ }
+ return i
+}
+
+function utf8Write (buf, string, offset, length) {
+ return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
+}
+
+function asciiWrite (buf, string, offset, length) {
+ return blitBuffer(asciiToBytes(string), buf, offset, length)
+}
+
+function latin1Write (buf, string, offset, length) {
+ return asciiWrite(buf, string, offset, length)
+}
+
+function base64Write (buf, string, offset, length) {
+ return blitBuffer(base64ToBytes(string), buf, offset, length)
+}
+
+function ucs2Write (buf, string, offset, length) {
+ return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
+}
+
+Buffer.prototype.write = function write (string, offset, length, encoding) {
+ // Buffer#write(string)
+ if (offset === undefined) {
+ encoding = 'utf8'
+ length = this.length
+ offset = 0
+ // Buffer#write(string, encoding)
+ } else if (length === undefined && typeof offset === 'string') {
+ encoding = offset
+ length = this.length
+ offset = 0
+ // Buffer#write(string, offset[, length][, encoding])
+ } else if (isFinite(offset)) {
+ offset = offset >>> 0
+ if (isFinite(length)) {
+ length = length >>> 0
+ if (encoding === undefined) encoding = 'utf8'
+ } else {
+ encoding = length
+ length = undefined
+ }
+ } else {
+ throw new Error(
+ 'Buffer.write(string, encoding, offset[, length]) is no longer supported'
+ )
+ }
+
+ var remaining = this.length - offset
+ if (length === undefined || length > remaining) length = remaining
+
+ if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
+ throw new RangeError('Attempt to write outside buffer bounds')
+ }
+
+ if (!encoding) encoding = 'utf8'
+
+ var loweredCase = false
+ for (;;) {
+ switch (encoding) {
+ case 'hex':
+ return hexWrite(this, string, offset, length)
+
+ case 'utf8':
+ case 'utf-8':
+ return utf8Write(this, string, offset, length)
+
+ case 'ascii':
+ return asciiWrite(this, string, offset, length)
+
+ case 'latin1':
+ case 'binary':
+ return latin1Write(this, string, offset, length)
+
+ case 'base64':
+ // Warning: maxLength not taken into account in base64Write
+ return base64Write(this, string, offset, length)
+
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return ucs2Write(this, string, offset, length)
+
+ default:
+ if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+ encoding = ('' + encoding).toLowerCase()
+ loweredCase = true
+ }
+ }
+}
+
+Buffer.prototype.toJSON = function toJSON () {
+ return {
+ type: 'Buffer',
+ data: Array.prototype.slice.call(this._arr || this, 0)
+ }
+}
+
+function base64Slice (buf, start, end) {
+ if (start === 0 && end === buf.length) {
+ return base64.fromByteArray(buf)
+ } else {
+ return base64.fromByteArray(buf.slice(start, end))
+ }
+}
+
+function utf8Slice (buf, start, end) {
+ end = Math.min(buf.length, end)
+ var res = []
+
+ var i = start
+ while (i < end) {
+ var firstByte = buf[i]
+ var codePoint = null
+ var bytesPerSequence = (firstByte > 0xEF) ? 4
+ : (firstByte > 0xDF) ? 3
+ : (firstByte > 0xBF) ? 2
+ : 1
+
+ if (i + bytesPerSequence <= end) {
+ var secondByte, thirdByte, fourthByte, tempCodePoint
+
+ switch (bytesPerSequence) {
+ case 1:
+ if (firstByte < 0x80) {
+ codePoint = firstByte
+ }
+ break
+ case 2:
+ secondByte = buf[i + 1]
+ if ((secondByte & 0xC0) === 0x80) {
+ tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
+ if (tempCodePoint > 0x7F) {
+ codePoint = tempCodePoint
+ }
+ }
+ break
+ case 3:
+ secondByte = buf[i + 1]
+ thirdByte = buf[i + 2]
+ if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
+ tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
+ if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
+ codePoint = tempCodePoint
+ }
+ }
+ break
+ case 4:
+ secondByte = buf[i + 1]
+ thirdByte = buf[i + 2]
+ fourthByte = buf[i + 3]
+ if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
+ tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
+ if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
+ codePoint = tempCodePoint
+ }
+ }
+ }
+ }
+
+ if (codePoint === null) {
+ // we did not generate a valid codePoint so insert a
+ // replacement char (U+FFFD) and advance only 1 byte
+ codePoint = 0xFFFD
+ bytesPerSequence = 1
+ } else if (codePoint > 0xFFFF) {
+ // encode to utf16 (surrogate pair dance)
+ codePoint -= 0x10000
+ res.push(codePoint >>> 10 & 0x3FF | 0xD800)
+ codePoint = 0xDC00 | codePoint & 0x3FF
+ }
+
+ res.push(codePoint)
+ i += bytesPerSequence
+ }
+
+ return decodeCodePointsArray(res)
+}
+
+// Based on http://stackoverflow.com/a/22747272/680742, the browser with
+// the lowest limit is Chrome, with 0x10000 args.
+// We go 1 magnitude less, for safety
+var MAX_ARGUMENTS_LENGTH = 0x1000
+
+function decodeCodePointsArray (codePoints) {
+ var len = codePoints.length
+ if (len <= MAX_ARGUMENTS_LENGTH) {
+ return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
+ }
+
+ // Decode in chunks to avoid "call stack size exceeded".
+ var res = ''
+ var i = 0
+ while (i < len) {
+ res += String.fromCharCode.apply(
+ String,
+ codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
+ )
+ }
+ return res
+}
+
+function asciiSlice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
+
+ for (var i = start; i < end; ++i) {
+ ret += String.fromCharCode(buf[i] & 0x7F)
+ }
+ return ret
+}
+
+function latin1Slice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
+
+ for (var i = start; i < end; ++i) {
+ ret += String.fromCharCode(buf[i])
+ }
+ return ret
+}
+
+function hexSlice (buf, start, end) {
+ var len = buf.length
+
+ if (!start || start < 0) start = 0
+ if (!end || end < 0 || end > len) end = len
+
+ var out = ''
+ for (var i = start; i < end; ++i) {
+ out += toHex(buf[i])
+ }
+ return out
+}
+
+function utf16leSlice (buf, start, end) {
+ var bytes = buf.slice(start, end)
+ var res = ''
+ for (var i = 0; i < bytes.length; i += 2) {
+ res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
+ }
+ return res
+}
+
+Buffer.prototype.slice = function slice (start, end) {
+ var len = this.length
+ start = ~~start
+ end = end === undefined ? len : ~~end
+
+ if (start < 0) {
+ start += len
+ if (start < 0) start = 0
+ } else if (start > len) {
+ start = len
+ }
+
+ if (end < 0) {
+ end += len
+ if (end < 0) end = 0
+ } else if (end > len) {
+ end = len
+ }
+
+ if (end < start) end = start
+
+ var newBuf = this.subarray(start, end)
+ // Return an augmented `Uint8Array` instance
+ newBuf.__proto__ = Buffer.prototype
+ return newBuf
+}
+
+/*
+ * Need to make sure that buffer isn't trying to write out of bounds.
+ */
+function checkOffset (offset, ext, length) {
+ if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
+ if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
+}
+
+Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+ var val = this[offset]
+ var mul = 1
+ var i = 0
+ while (++i < byteLength && (mul *= 0x100)) {
+ val += this[offset + i] * mul
+ }
+
+ return val
+}
+
+Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) {
+ checkOffset(offset, byteLength, this.length)
+ }
+
+ var val = this[offset + --byteLength]
+ var mul = 1
+ while (byteLength > 0 && (mul *= 0x100)) {
+ val += this[offset + --byteLength] * mul
+ }
+
+ return val
+}
+
+Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 1, this.length)
+ return this[offset]
+}
+
+Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return this[offset] | (this[offset + 1] << 8)
+}
+
+Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return (this[offset] << 8) | this[offset + 1]
+}
+
+Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return ((this[offset]) |
+ (this[offset + 1] << 8) |
+ (this[offset + 2] << 16)) +
+ (this[offset + 3] * 0x1000000)
+}
+
+Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return (this[offset] * 0x1000000) +
+ ((this[offset + 1] << 16) |
+ (this[offset + 2] << 8) |
+ this[offset + 3])
+}
+
+Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+ var val = this[offset]
+ var mul = 1
+ var i = 0
+ while (++i < byteLength && (mul *= 0x100)) {
+ val += this[offset + i] * mul
+ }
+ mul *= 0x80
+
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+ return val
+}
+
+Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+ var i = byteLength
+ var mul = 1
+ var val = this[offset + --i]
+ while (i > 0 && (mul *= 0x100)) {
+ val += this[offset + --i] * mul
+ }
+ mul *= 0x80
+
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+ return val
+}
+
+Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 1, this.length)
+ if (!(this[offset] & 0x80)) return (this[offset])
+ return ((0xff - this[offset] + 1) * -1)
+}
+
+Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ var val = this[offset] | (this[offset + 1] << 8)
+ return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ var val = this[offset + 1] | (this[offset] << 8)
+ return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return (this[offset]) |
+ (this[offset + 1] << 8) |
+ (this[offset + 2] << 16) |
+ (this[offset + 3] << 24)
+}
+
+Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return (this[offset] << 24) |
+ (this[offset + 1] << 16) |
+ (this[offset + 2] << 8) |
+ (this[offset + 3])
+}
+
+Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
+ return ieee754.read(this, offset, true, 23, 4)
+}
+
+Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 4, this.length)
+ return ieee754.read(this, offset, false, 23, 4)
+}
+
+Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 8, this.length)
+ return ieee754.read(this, offset, true, 52, 8)
+}
+
+Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
+ offset = offset >>> 0
+ if (!noAssert) checkOffset(offset, 8, this.length)
+ return ieee754.read(this, offset, false, 52, 8)
+}
+
+function checkInt (buf, value, offset, ext, max, min) {
+ if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
+ if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
+ if (offset + ext > buf.length) throw new RangeError('Index out of range')
+}
+
+Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) {
+ var maxBytes = Math.pow(2, 8 * byteLength) - 1
+ checkInt(this, value, offset, byteLength, maxBytes, 0)
+ }
+
+ var mul = 1
+ var i = 0
+ this[offset] = value & 0xFF
+ while (++i < byteLength && (mul *= 0x100)) {
+ this[offset + i] = (value / mul) & 0xFF
+ }
+
+ return offset + byteLength
+}
+
+Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) {
+ var maxBytes = Math.pow(2, 8 * byteLength) - 1
+ checkInt(this, value, offset, byteLength, maxBytes, 0)
+ }
+
+ var i = byteLength - 1
+ var mul = 1
+ this[offset + i] = value & 0xFF
+ while (--i >= 0 && (mul *= 0x100)) {
+ this[offset + i] = (value / mul) & 0xFF
+ }
+
+ return offset + byteLength
+}
+
+Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
+ this[offset] = (value & 0xff)
+ return offset + 1
+}
+
+Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+ this[offset] = (value & 0xff)
+ this[offset + 1] = (value >>> 8)
+ return offset + 2
+}
+
+Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+ this[offset] = (value >>> 8)
+ this[offset + 1] = (value & 0xff)
+ return offset + 2
+}
+
+Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+ this[offset + 3] = (value >>> 24)
+ this[offset + 2] = (value >>> 16)
+ this[offset + 1] = (value >>> 8)
+ this[offset] = (value & 0xff)
+ return offset + 4
+}
+
+Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+ this[offset] = (value >>> 24)
+ this[offset + 1] = (value >>> 16)
+ this[offset + 2] = (value >>> 8)
+ this[offset + 3] = (value & 0xff)
+ return offset + 4
+}
+
+Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ var limit = Math.pow(2, (8 * byteLength) - 1)
+
+ checkInt(this, value, offset, byteLength, limit - 1, -limit)
+ }
+
+ var i = 0
+ var mul = 1
+ var sub = 0
+ this[offset] = value & 0xFF
+ while (++i < byteLength && (mul *= 0x100)) {
+ if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
+ sub = 1
+ }
+ this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+ }
+
+ return offset + byteLength
+}
+
+Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ var limit = Math.pow(2, (8 * byteLength) - 1)
+
+ checkInt(this, value, offset, byteLength, limit - 1, -limit)
+ }
+
+ var i = byteLength - 1
+ var mul = 1
+ var sub = 0
+ this[offset + i] = value & 0xFF
+ while (--i >= 0 && (mul *= 0x100)) {
+ if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
+ sub = 1
+ }
+ this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+ }
+
+ return offset + byteLength
+}
+
+Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
+ if (value < 0) value = 0xff + value + 1
+ this[offset] = (value & 0xff)
+ return offset + 1
+}
+
+Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+ this[offset] = (value & 0xff)
+ this[offset + 1] = (value >>> 8)
+ return offset + 2
+}
+
+Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+ this[offset] = (value >>> 8)
+ this[offset + 1] = (value & 0xff)
+ return offset + 2
+}
+
+Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+ this[offset] = (value & 0xff)
+ this[offset + 1] = (value >>> 8)
+ this[offset + 2] = (value >>> 16)
+ this[offset + 3] = (value >>> 24)
+ return offset + 4
+}
+
+Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+ if (value < 0) value = 0xffffffff + value + 1
+ this[offset] = (value >>> 24)
+ this[offset + 1] = (value >>> 16)
+ this[offset + 2] = (value >>> 8)
+ this[offset + 3] = (value & 0xff)
+ return offset + 4
+}
+
+function checkIEEE754 (buf, value, offset, ext, max, min) {
+ if (offset + ext > buf.length) throw new RangeError('Index out of range')
+ if (offset < 0) throw new RangeError('Index out of range')
+}
+
+function writeFloat (buf, value, offset, littleEndian, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
+ }
+ ieee754.write(buf, value, offset, littleEndian, 23, 4)
+ return offset + 4
+}
+
+Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
+ return writeFloat(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
+ return writeFloat(this, value, offset, false, noAssert)
+}
+
+function writeDouble (buf, value, offset, littleEndian, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
+ }
+ ieee754.write(buf, value, offset, littleEndian, 52, 8)
+ return offset + 8
+}
+
+Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, false, noAssert)
+}
+
+// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
+Buffer.prototype.copy = function copy (target, targetStart, start, end) {
+ if (!start) start = 0
+ if (!end && end !== 0) end = this.length
+ if (targetStart >= target.length) targetStart = target.length
+ if (!targetStart) targetStart = 0
+ if (end > 0 && end < start) end = start
+
+ // Copy 0 bytes; we're done
+ if (end === start) return 0
+ if (target.length === 0 || this.length === 0) return 0
+
+ // Fatal error conditions
+ if (targetStart < 0) {
+ throw new RangeError('targetStart out of bounds')
+ }
+ if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
+ if (end < 0) throw new RangeError('sourceEnd out of bounds')
+
+ // Are we oob?
+ if (end > this.length) end = this.length
+ if (target.length - targetStart < end - start) {
+ end = target.length - targetStart + start
+ }
+
+ var len = end - start
+ var i
+
+ if (this === target && start < targetStart && targetStart < end) {
+ // descending copy from end
+ for (i = len - 1; i >= 0; --i) {
+ target[i + targetStart] = this[i + start]
+ }
+ } else if (len < 1000) {
+ // ascending copy from start
+ for (i = 0; i < len; ++i) {
+ target[i + targetStart] = this[i + start]
+ }
+ } else {
+ Uint8Array.prototype.set.call(
+ target,
+ this.subarray(start, start + len),
+ targetStart
+ )
+ }
+
+ return len
+}
+
+// Usage:
+// buffer.fill(number[, offset[, end]])
+// buffer.fill(buffer[, offset[, end]])
+// buffer.fill(string[, offset[, end]][, encoding])
+Buffer.prototype.fill = function fill (val, start, end, encoding) {
+ // Handle string cases:
+ if (typeof val === 'string') {
+ if (typeof start === 'string') {
+ encoding = start
+ start = 0
+ end = this.length
+ } else if (typeof end === 'string') {
+ encoding = end
+ end = this.length
+ }
+ if (val.length === 1) {
+ var code = val.charCodeAt(0)
+ if (code < 256) {
+ val = code
+ }
+ }
+ if (encoding !== undefined && typeof encoding !== 'string') {
+ throw new TypeError('encoding must be a string')
+ }
+ if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
+ throw new TypeError('Unknown encoding: ' + encoding)
+ }
+ } else if (typeof val === 'number') {
+ val = val & 255
+ }
+
+ // Invalid ranges are not set to a default, so can range check early.
+ if (start < 0 || this.length < start || this.length < end) {
+ throw new RangeError('Out of range index')
+ }
+
+ if (end <= start) {
+ return this
+ }
+
+ start = start >>> 0
+ end = end === undefined ? this.length : end >>> 0
+
+ if (!val) val = 0
+
+ var i
+ if (typeof val === 'number') {
+ for (i = start; i < end; ++i) {
+ this[i] = val
}
- ],
- "directories": {},
- "_shasum": "90ac1aeac0a531216463bdb58f42c1e05c8407ac",
- "_resolved": "https://registry.npmjs.org/bigi/-/bigi-1.4.0.tgz"
+ } else {
+ var bytes = Buffer.isBuffer(val)
+ ? val
+ : new Buffer(val, encoding)
+ var len = bytes.length
+ for (i = 0; i < end - start; ++i) {
+ this[i + start] = bytes[i % len]
+ }
+ }
+
+ return this
}
-},{}],5:[function(require,module,exports){
-// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
+// HELPER FUNCTIONS
+// ================
+
+var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
+
+function base64clean (str) {
+ // Node strips out invalid characters like \n and \t from the string, base64-js does not
+ str = str.trim().replace(INVALID_BASE64_RE, '')
+ // Node converts strings with length < 2 to ''
+ if (str.length < 2) return ''
+ // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
+ while (str.length % 4 !== 0) {
+ str = str + '='
+ }
+ return str
+}
+
+function toHex (n) {
+ if (n < 16) return '0' + n.toString(16)
+ return n.toString(16)
+}
+
+function utf8ToBytes (string, units) {
+ units = units || Infinity
+ var codePoint
+ var length = string.length
+ var leadSurrogate = null
+ var bytes = []
+
+ for (var i = 0; i < length; ++i) {
+ codePoint = string.charCodeAt(i)
+
+ // is surrogate component
+ if (codePoint > 0xD7FF && codePoint < 0xE000) {
+ // last char was a lead
+ if (!leadSurrogate) {
+ // no lead yet
+ if (codePoint > 0xDBFF) {
+ // unexpected trail
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ continue
+ } else if (i + 1 === length) {
+ // unpaired lead
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ continue
+ }
+
+ // valid lead
+ leadSurrogate = codePoint
+
+ continue
+ }
+
+ // 2 leads in a row
+ if (codePoint < 0xDC00) {
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ leadSurrogate = codePoint
+ continue
+ }
+
+ // valid surrogate pair
+ codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
+ } else if (leadSurrogate) {
+ // valid bmp char, but last char was a lead
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ }
+
+ leadSurrogate = null
+
+ // encode utf8
+ if (codePoint < 0x80) {
+ if ((units -= 1) < 0) break
+ bytes.push(codePoint)
+ } else if (codePoint < 0x800) {
+ if ((units -= 2) < 0) break
+ bytes.push(
+ codePoint >> 0x6 | 0xC0,
+ codePoint & 0x3F | 0x80
+ )
+ } else if (codePoint < 0x10000) {
+ if ((units -= 3) < 0) break
+ bytes.push(
+ codePoint >> 0xC | 0xE0,
+ codePoint >> 0x6 & 0x3F | 0x80,
+ codePoint & 0x3F | 0x80
+ )
+ } else if (codePoint < 0x110000) {
+ if ((units -= 4) < 0) break
+ bytes.push(
+ codePoint >> 0x12 | 0xF0,
+ codePoint >> 0xC & 0x3F | 0x80,
+ codePoint >> 0x6 & 0x3F | 0x80,
+ codePoint & 0x3F | 0x80
+ )
+ } else {
+ throw new Error('Invalid code point')
+ }
+ }
+
+ return bytes
+}
+
+function asciiToBytes (str) {
+ var byteArray = []
+ for (var i = 0; i < str.length; ++i) {
+ // Node's code seems to be doing this and not & 0x7F..
+ byteArray.push(str.charCodeAt(i) & 0xFF)
+ }
+ return byteArray
+}
+
+function utf16leToBytes (str, units) {
+ var c, hi, lo
+ var byteArray = []
+ for (var i = 0; i < str.length; ++i) {
+ if ((units -= 2) < 0) break
+
+ c = str.charCodeAt(i)
+ hi = c >> 8
+ lo = c % 256
+ byteArray.push(lo)
+ byteArray.push(hi)
+ }
+
+ return byteArray
+}
+
+function base64ToBytes (str) {
+ return base64.toByteArray(base64clean(str))
+}
+
+function blitBuffer (src, dst, offset, length) {
+ for (var i = 0; i < length; ++i) {
+ if ((i + offset >= dst.length) || (i >= src.length)) break
+ dst[i + offset] = src[i]
+ }
+ return i
+}
+
+// Node 0.10 supports `ArrayBuffer` but lacks `ArrayBuffer.isView`
+function isArrayBufferView (obj) {
+ return (typeof ArrayBuffer.isView === 'function') && ArrayBuffer.isView(obj)
+}
+
+function numberIsNaN (obj) {
+ return obj !== obj // eslint-disable-line no-self-compare
+}
+
+},{"base64-js":2,"ieee754":7}],5:[function(require,module,exports){
+(function (Buffer){
+// Copyright Joyent, Inc. and other Node contributors.
//
-// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
+// 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:
//
-// Originally from narwhal.js (http://narwhaljs.org)
-// Copyright (c) 2009 Thomas Robinson <280north.com>
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
//
-// 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 SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
+
+function isArray(arg) {
+ if (Array.isArray) {
+ return Array.isArray(arg);
+ }
+ return objectToString(arg) === '[object Array]';
+}
+exports.isArray = isArray;
+
+function isBoolean(arg) {
+ return typeof arg === 'boolean';
+}
+exports.isBoolean = isBoolean;
+
+function isNull(arg) {
+ return arg === null;
+}
+exports.isNull = isNull;
+
+function isNullOrUndefined(arg) {
+ return arg == null;
+}
+exports.isNullOrUndefined = isNullOrUndefined;
+
+function isNumber(arg) {
+ return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
+
+function isString(arg) {
+ return typeof arg === 'string';
+}
+exports.isString = isString;
+
+function isSymbol(arg) {
+ return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
+
+function isUndefined(arg) {
+ return arg === void 0;
+}
+exports.isUndefined = isUndefined;
+
+function isRegExp(re) {
+ return objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
+
+function isObject(arg) {
+ return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
+
+function isDate(d) {
+ return objectToString(d) === '[object Date]';
+}
+exports.isDate = isDate;
+
+function isError(e) {
+ return (objectToString(e) === '[object Error]' || e instanceof Error);
+}
+exports.isError = isError;
+
+function isFunction(arg) {
+ return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
+
+function isPrimitive(arg) {
+ return arg === null ||
+ typeof arg === 'boolean' ||
+ typeof arg === 'number' ||
+ typeof arg === 'string' ||
+ typeof arg === 'symbol' || // ES6 symbol
+ typeof arg === 'undefined';
+}
+exports.isPrimitive = isPrimitive;
+
+exports.isBuffer = Buffer.isBuffer;
+
+function objectToString(o) {
+ return Object.prototype.toString.call(o);
+}
+
+}).call(this,{"isBuffer":require("../../is-buffer/index.js")})
+},{"../../is-buffer/index.js":9}],6:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
+// 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 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.
+// 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.
-// 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/');
+function EventEmitter() {
+ this._events = this._events || {};
+ this._maxListeners = this._maxListeners || undefined;
+}
+module.exports = EventEmitter;
-var pSlice = Array.prototype.slice;
-var hasOwn = Object.prototype.hasOwnProperty;
+// Backwards-compat with node 0.10.x
+EventEmitter.EventEmitter = EventEmitter;
-// 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.
+EventEmitter.prototype._events = undefined;
+EventEmitter.prototype._maxListeners = undefined;
+
+// By default EventEmitters will print a warning if more than 10 listeners are
+// added to it. This is a useful default which helps finding memory leaks.
+EventEmitter.defaultMaxListeners = 10;
+
+// Obviously not all Emitters should be limited to 10. This function allows
+// that to be increased. Set to zero for unlimited.
+EventEmitter.prototype.setMaxListeners = function(n) {
+ if (!isNumber(n) || n < 0 || isNaN(n))
+ throw TypeError('n must be a positive number');
+ this._maxListeners = n;
+ return this;
+};
+
+EventEmitter.prototype.emit = function(type) {
+ var er, handler, len, args, i, listeners;
+
+ if (!this._events)
+ this._events = {};
+
+ // If there is no 'error' event listener then throw.
+ if (type === 'error') {
+ if (!this._events.error ||
+ (isObject(this._events.error) && !this._events.error.length)) {
+ er = arguments[1];
+ if (er instanceof Error) {
+ throw er; // Unhandled 'error' event
+ } else {
+ // At least give some kind of context to the user
+ var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
+ err.context = er;
+ throw err;
+ }
+ }
+ }
+
+ handler = this._events[type];
+
+ if (isUndefined(handler))
+ return false;
+
+ if (isFunction(handler)) {
+ switch (arguments.length) {
+ // fast cases
+ case 1:
+ handler.call(this);
+ break;
+ case 2:
+ handler.call(this, arguments[1]);
+ break;
+ case 3:
+ handler.call(this, arguments[1], arguments[2]);
+ break;
+ // slower
+ default:
+ args = Array.prototype.slice.call(arguments, 1);
+ handler.apply(this, args);
+ }
+ } else if (isObject(handler)) {
+ args = Array.prototype.slice.call(arguments, 1);
+ listeners = handler.slice();
+ len = listeners.length;
+ for (i = 0; i < len; i++)
+ listeners[i].apply(this, args);
+ }
+
+ return true;
+};
+
+EventEmitter.prototype.addListener = function(type, listener) {
+ var m;
+
+ if (!isFunction(listener))
+ throw TypeError('listener must be a function');
+
+ if (!this._events)
+ this._events = {};
+
+ // To avoid recursion in the case that type === "newListener"! Before
+ // adding it to the listeners, first emit "newListener".
+ if (this._events.newListener)
+ this.emit('newListener', type,
+ isFunction(listener.listener) ?
+ listener.listener : listener);
+
+ if (!this._events[type])
+ // Optimize the case of one listener. Don't need the extra array object.
+ this._events[type] = listener;
+ else if (isObject(this._events[type]))
+ // If we've already got an array, just append.
+ this._events[type].push(listener);
+ else
+ // Adding the second element, need to change to array.
+ this._events[type] = [this._events[type], listener];
+
+ // Check for listener leak
+ if (isObject(this._events[type]) && !this._events[type].warned) {
+ if (!isUndefined(this._maxListeners)) {
+ m = this._maxListeners;
+ } else {
+ m = EventEmitter.defaultMaxListeners;
+ }
+
+ if (m && m > 0 && this._events[type].length > m) {
+ this._events[type].warned = true;
+ console.error('(node) warning: possible EventEmitter memory ' +
+ 'leak detected. %d listeners added. ' +
+ 'Use emitter.setMaxListeners() to increase limit.',
+ this._events[type].length);
+ if (typeof console.trace === 'function') {
+ // not supported in IE 10
+ console.trace();
+ }
+ }
+ }
+
+ return this;
+};
+
+EventEmitter.prototype.on = EventEmitter.prototype.addListener;
+
+EventEmitter.prototype.once = function(type, listener) {
+ if (!isFunction(listener))
+ throw TypeError('listener must be a function');
+
+ var fired = false;
+
+ function g() {
+ this.removeListener(type, g);
+
+ if (!fired) {
+ fired = true;
+ listener.apply(this, arguments);
+ }
+ }
+
+ g.listener = listener;
+ this.on(type, g);
+
+ return this;
+};
+
+// emits a 'removeListener' event iff the listener was removed
+EventEmitter.prototype.removeListener = function(type, listener) {
+ var list, position, length, i;
+
+ if (!isFunction(listener))
+ throw TypeError('listener must be a function');
+
+ if (!this._events || !this._events[type])
+ return this;
+
+ list = this._events[type];
+ length = list.length;
+ position = -1;
+
+ if (list === listener ||
+ (isFunction(list.listener) && list.listener === listener)) {
+ delete this._events[type];
+ if (this._events.removeListener)
+ this.emit('removeListener', type, listener);
+
+ } else if (isObject(list)) {
+ for (i = length; i-- > 0;) {
+ if (list[i] === listener ||
+ (list[i].listener && list[i].listener === listener)) {
+ position = i;
+ break;
+ }
+ }
+
+ if (position < 0)
+ return this;
+
+ if (list.length === 1) {
+ list.length = 0;
+ delete this._events[type];
+ } else {
+ list.splice(position, 1);
+ }
+
+ if (this._events.removeListener)
+ this.emit('removeListener', type, listener);
+ }
+
+ return this;
+};
-var assert = module.exports = ok;
+EventEmitter.prototype.removeAllListeners = function(type) {
+ var key, listeners;
-// 2. The AssertionError is defined in assert.
-// new assert.AssertionError({ message: message,
-// actual: actual,
-// expected: expected })
+ if (!this._events)
+ return this;
-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;
+ // 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 stackStartFunction = options.stackStartFunction || fail;
- if (Error.captureStackTrace) {
- Error.captureStackTrace(this, stackStartFunction);
+ // 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;
}
- else {
- // non v8 browsers so we can have a stacktrace
- var err = new Error();
- if (err.stack) {
- var out = err.stack;
- // try to strip useless frames
- var fn_name = 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);
- }
+ listeners = this._events[type];
- this.stack = out;
- }
+ 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;
};
-// assert.AssertionError instanceof Error
-util.inherits(assert.AssertionError, Error);
+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;
+};
-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();
+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 value;
+ return 0;
+};
+
+EventEmitter.listenerCount = function(emitter, type) {
+ return emitter.listenerCount(type);
+};
+
+function isFunction(arg) {
+ return typeof arg === 'function';
}
-function truncate(s, n) {
- if (util.isString(s)) {
- return s.length < n ? s : s.slice(0, n);
- } else {
- return s;
- }
+function isNumber(arg) {
+ return typeof arg === 'number';
}
-function getMessage(self) {
- return truncate(JSON.stringify(self.actual, replacer), 128) + ' ' +
- self.operator + ' ' +
- truncate(JSON.stringify(self.expected, replacer), 128);
+function isObject(arg) {
+ return typeof arg === 'object' && arg !== null;
}
-// 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.
+function isUndefined(arg) {
+ return arg === void 0;
+}
-// 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.
+},{}],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]
-function fail(actual, expected, message, operator, stackStartFunction) {
- throw new assert.AssertionError({
- message: message,
- actual: actual,
- expected: expected,
- operator: operator,
- stackStartFunction: stackStartFunction
- });
-}
+ i += d
-// EXTENSION! allows for well behaved errors defined elsewhere.
-assert.fail = fail;
+ e = s & ((1 << (-nBits)) - 1)
+ s >>= (-nBits)
+ nBits += eLen
+ for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 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);.
+ m = e & ((1 << (-nBits)) - 1)
+ e >>= (-nBits)
+ nBits += mLen
+ for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
-function ok(value, message) {
- if (!value) fail(value, true, message, '==', assert.ok);
+ 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)
}
-assert.ok = ok;
-// 5. The equality assertion tests shallow, coercive equality with
-// ==.
-// assert.equal(actual, expected, message_opt);
+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
-assert.equal = function equal(actual, expected, message) {
- if (actual != expected) fail(actual, expected, message, '==', assert.equal);
-};
+ value = Math.abs(value)
-// 6. The non-equality assertion tests for whether two objects are not equal
-// with != assert.notEqual(actual, expected, message_opt);
+ 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
+ }
-assert.notEqual = function notEqual(actual, expected, message) {
- if (actual == expected) {
- fail(actual, expected, message, '!=', assert.notEqual);
+ 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
+ }
}
-};
-// 7. The equivalence assertion tests a deep equality relation.
-// assert.deepEqual(actual, expected, message_opt);
+ for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
-assert.deepEqual = function deepEqual(actual, expected, message) {
- if (!_deepEqual(actual, expected)) {
- fail(actual, expected, message, 'deepEqual', assert.deepEqual);
+ e = (e << mLen) | m
+ eLen += mLen
+ for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+
+ buffer[offset + i - d] |= s * 128
+}
+
+},{}],8:[function(require,module,exports){
+if (typeof Object.create === 'function') {
+ // implementation from standard node.js 'util' module
+ module.exports = function inherits(ctor, superCtor) {
+ ctor.super_ = superCtor
+ ctor.prototype = Object.create(superCtor.prototype, {
+ constructor: {
+ value: ctor,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ };
+} else {
+ // old school shim for old browsers
+ module.exports = function inherits(ctor, superCtor) {
+ ctor.super_ = superCtor
+ var TempCtor = function () {}
+ TempCtor.prototype = superCtor.prototype
+ ctor.prototype = new TempCtor()
+ ctor.prototype.constructor = ctor
}
-};
+}
-function _deepEqual(actual, expected) {
- // 7.1. All identical values are equivalent, as determined by ===.
- if (actual === expected) {
- return true;
+},{}],9:[function(require,module,exports){
+/*!
+ * Determine if an object is a Buffer
+ *
+ * @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license MIT
+ */
- } else if (util.isBuffer(actual) && util.isBuffer(expected)) {
- if (actual.length != expected.length) return false;
+// 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)
+}
- for (var i = 0; i < actual.length; i++) {
- if (actual[i] !== expected[i]) return false;
- }
+function isBuffer (obj) {
+ return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
+}
- return true;
+// 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))
+}
- // 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();
+},{}],10:[function(require,module,exports){
+var toString = {}.toString;
- // 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;
+module.exports = Array.isArray || function (arr) {
+ return toString.call(arr) == '[object Array]';
+};
- // 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;
+},{}],11:[function(require,module,exports){
+(function (process){
+'use strict';
- // 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);
+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);
+ });
}
}
-function isArguments(object) {
- return Object.prototype.toString.call(object) == '[object Arguments]';
+}).call(this,require('_process'))
+},{"_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 objEquiv(a, b) {
- if (util.isNullOrUndefined(a) || util.isNullOrUndefined(b))
- return false;
- // an identical 'prototype' property.
- if (a.prototype !== b.prototype) return false;
- // if one is a primitive, the other must be same
- if (util.isPrimitive(a) || util.isPrimitive(b)) {
- return a === b;
- }
- var aIsArgs = isArguments(a),
- bIsArgs = isArguments(b);
- if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
- return false;
- if (aIsArgs) {
- a = pSlice.call(a);
- b = pSlice.call(b);
- return _deepEqual(a, b);
- }
- var ka = objectKeys(a),
- kb = objectKeys(b),
- key, i;
- // having the same number of owned properties (keys incorporates
- // hasOwnProperty)
- if (ka.length != kb.length)
- return false;
- //the same set of keys (although not necessarily the same order),
- ka.sort();
- kb.sort();
- //~~~cheap key test
- for (i = ka.length - 1; i >= 0; i--) {
- if (ka[i] != kb[i])
- return false;
- }
- //equivalent values for every corresponding key, and
- //~~~possibly expensive deep test
- for (i = ka.length - 1; i >= 0; i--) {
- key = ka[i];
- if (!_deepEqual(a[key], b[key])) return false;
- }
- return true;
}
+function 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);
+ }
+ }
-// 8. The non-equivalence assertion tests for any deep inequality.
-// assert.notDeepEqual(actual, expected, message_opt);
-assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
- if (_deepEqual(actual, expected)) {
- fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
- }
-};
-// 9. The strict equality assertion tests strict equality, as determined by ===.
-// assert.strictEqual(actual, expected, message_opt);
+}
+var queue = [];
+var draining = false;
+var currentQueue;
+var queueIndex = -1;
-assert.strictEqual = function strictEqual(actual, expected, message) {
- if (actual !== expected) {
- fail(actual, expected, message, '===', assert.strictEqual);
- }
-};
+function cleanUpNextTick() {
+ if (!draining || !currentQueue) {
+ return;
+ }
+ draining = false;
+ if (currentQueue.length) {
+ queue = currentQueue.concat(queue);
+ } else {
+ queueIndex = -1;
+ }
+ if (queue.length) {
+ drainQueue();
+ }
+}
-// 10. The strict non-equality assertion tests for strict inequality, as
-// determined by !==. assert.notStrictEqual(actual, expected, message_opt);
+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);
+}
-assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
- if (actual === expected) {
- fail(actual, expected, message, '!==', assert.notStrictEqual);
- }
+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);
+ }
};
-function expectedException(actual, expected) {
- if (!actual || !expected) {
- return false;
- }
-
- 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;
- }
-
- return false;
+// 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 _throws(shouldThrow, block, expected, message) {
- var actual;
+function noop() {}
- if (util.isString(expected)) {
- message = expected;
- expected = null;
- }
+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;
- try {
- block();
- } catch (e) {
- actual = e;
- }
+process.listeners = function (name) { return [] }
- message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
- (message ? ' ' + message : '.');
+process.binding = function (name) {
+ throw new Error('process.binding is not supported');
+};
- if (shouldThrow && !actual) {
- fail(actual, expected, 'Missing expected exception' + message);
- }
+process.cwd = function () { return '/' };
+process.chdir = function (dir) {
+ throw new Error('process.chdir is not supported');
+};
+process.umask = function() { return 0; };
- if (!shouldThrow && expectedException(actual, expected)) {
- fail(actual, expected, 'Got unwanted exception' + message);
- }
+},{}],13:[function(require,module,exports){
+module.exports = require('./lib/_stream_duplex.js');
- if ((shouldThrow && actual && expected &&
- !expectedException(actual, expected)) || (!shouldThrow && actual)) {
- throw actual;
- }
-}
+},{"./lib/_stream_duplex.js":14}],14:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
-// 11. Expected to throw an error:
-// assert.throws(block, Error_opt, message_opt);
+// 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.
-assert.throws = function(block, /*optional*/error, /*optional*/message) {
- _throws.apply(this, [true].concat(pSlice.call(arguments)));
-};
+'use strict';
-// EXTENSION! This is annoying to write outside this module.
-assert.doesNotThrow = function(block, /*optional*/message) {
- _throws.apply(this, [false].concat(pSlice.call(arguments)));
-};
+/*<replacement>*/
-assert.ifError = function(err) { if (err) {throw err;}};
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
+/*<replacement>*/
var objectKeys = Object.keys || function (obj) {
var keys = [];
for (var key in obj) {
- if (hasOwn.call(obj, key)) keys.push(key);
- }
- return keys;
+ keys.push(key);
+ }return keys;
};
+/*</replacement>*/
-},{"util/":29}],6:[function(require,module,exports){
+module.exports = Duplex;
-},{}],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
- */
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
-var base64 = require('base64-js')
-var ieee754 = require('ieee754')
-var isArray = require('is-array')
+var Readable = require('./_stream_readable');
+var Writable = require('./_stream_writable');
-exports.Buffer = Buffer
-exports.SlowBuffer = SlowBuffer
-exports.INSPECT_MAX_BYTES = 50
-Buffer.poolSize = 8192 // not used by this implementation
+util.inherits(Duplex, Readable);
-var rootParent = {}
+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];
+}
-/**
- * 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.
+function Duplex(options) {
+ if (!(this instanceof Duplex)) return new Duplex(options);
- * 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
- }
-})()
+ Readable.call(this, options);
+ Writable.call(this, options);
-function kMaxLength () {
- return Buffer.TYPED_ARRAY_SUPPORT
- ? 0x7fffffff
- : 0x3fffffff
-}
+ if (options && options.readable === false) this.readable = false;
-/**
- * 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)
- }
+ if (options && options.writable === false) this.writable = false;
- this.length = 0
- this.parent = undefined
+ this.allowHalfOpen = true;
+ if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
- // Common case.
- if (typeof arg === 'number') {
- return fromNumber(this, arg)
- }
+ this.once('end', onend);
+}
- // Slightly less common case.
- if (typeof arg === 'string') {
- return fromString(this, arg, arguments.length > 1 ? arguments[1] : 'utf8')
- }
+// the no-half-open enforcer
+function onend() {
+ // if we allow half-open state, or if the writable side ended,
+ // then we're ok.
+ if (this.allowHalfOpen || this._writableState.ended) return;
+
+ // no more data can be written.
+ // But allow more writes to happen in this tick.
+ processNextTick(onEndNT, this);
+}
- // Unusual.
- return fromObject(this, arg)
+function onEndNT(self) {
+ self.end();
}
-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
+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;
}
+
+ // backward compatibility, the user is explicitly
+ // managing destroyed
+ this._readableState.destroyed = value;
+ this._writableState.destroyed = value;
}
- return that
-}
+});
-function fromString (that, string, encoding) {
- if (typeof encoding !== 'string' || encoding === '') encoding = 'utf8'
+Duplex.prototype._destroy = function (err, cb) {
+ this.push(null);
+ this.end();
- // Assumption: byteLength() return value is always < kMaxLength.
- var length = byteLength(string, encoding) | 0
- that = allocate(that, length)
+ processNextTick(cb, err);
+};
- that.write(string, encoding)
- return that
+function forEach(xs, f) {
+ for (var i = 0, l = xs.length; i < l; i++) {
+ f(xs[i], i);
+ }
}
+},{"./_stream_readable":16,"./_stream_writable":18,"core-util-is":5,"inherits":8,"process-nextick-args":11}],15:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
-function fromObject (that, object) {
- if (Buffer.isBuffer(object)) return fromBuffer(that, object)
+// a passthrough stream.
+// basically just the most minimal sort of Transform stream.
+// Every written chunk gets output as-is.
- if (isArray(object)) return fromArray(that, object)
+'use strict';
- if (object == null) {
- throw new TypeError('must start with number, buffer, array or string')
- }
+module.exports = PassThrough;
- if (typeof ArrayBuffer !== 'undefined') {
- if (object.buffer instanceof ArrayBuffer) {
- return fromTypedArray(that, object)
- }
- if (object instanceof ArrayBuffer) {
- return fromArrayBuffer(that, object)
- }
- }
+var Transform = require('./_stream_transform');
- if (object.length) return fromArrayLike(that, object)
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
- return fromJsonObject(that, object)
-}
+util.inherits(PassThrough, Transform);
-function fromBuffer (that, buffer) {
- var length = checked(buffer.length) | 0
- that = allocate(that, length)
- buffer.copy(that, 0, 0, length)
- return that
-}
+function PassThrough(options) {
+ if (!(this instanceof PassThrough)) return new PassThrough(options);
-function fromArray (that, array) {
- var length = checked(array.length) | 0
- that = allocate(that, length)
- for (var i = 0; i < length; i += 1) {
- that[i] = array[i] & 255
- }
- return that
+ Transform.call(this, options);
}
-// 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
-}
+PassThrough.prototype._transform = function (chunk, encoding, cb) {
+ cb(null, chunk);
+};
+},{"./_stream_transform":17,"core-util-is":5,"inherits":8}],16:[function(require,module,exports){
+(function (process,global){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
-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))
- }
- return that
-}
+'use strict';
-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
-}
+/*<replacement>*/
-// 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
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
- if (object.type === 'Buffer' && isArray(object.data)) {
- array = object.data
- length = checked(array.length) | 0
- }
- that = allocate(that, length)
+module.exports = Readable;
- for (var i = 0; i < length; i += 1) {
- that[i] = array[i] & 255
- }
- return that
-}
+/*<replacement>*/
+var isArray = require('isarray');
+/*</replacement>*/
-function allocate (that, length) {
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- // Return an augmented `Uint8Array` instance, for best performance
- that = Buffer._augment(new Uint8Array(length))
- } else {
- // Fallback: Return an object instance of the Buffer class
- that.length = length
- that._isBuffer = true
- }
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
- var fromPool = length !== 0 && length <= Buffer.poolSize >>> 1
- if (fromPool) that.parent = rootParent
+Readable.ReadableState = ReadableState;
- return that
-}
+/*<replacement>*/
+var EE = require('events').EventEmitter;
-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
-}
+var EElistenerCount = function (emitter, type) {
+ return emitter.listeners(type).length;
+};
+/*</replacement>*/
-function SlowBuffer (subject, encoding) {
- if (!(this instanceof SlowBuffer)) return new SlowBuffer(subject, encoding)
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
- var buf = new Buffer(subject, encoding)
- delete buf.parent
- return buf
+// 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>*/
-Buffer.isBuffer = function isBuffer (b) {
- return !!(b != null && b._isBuffer)
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+/*<replacement>*/
+var debugUtil = require('util');
+var debug = void 0;
+if (debugUtil && debugUtil.debuglog) {
+ debug = debugUtil.debuglog('stream');
+} else {
+ debug = function () {};
}
+/*</replacement>*/
-Buffer.compare = function compare (a, b) {
- if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
- throw new TypeError('Arguments must be Buffers')
+var BufferList = require('./internal/streams/BufferList');
+var destroyImpl = require('./internal/streams/destroy');
+var StringDecoder;
+
+util.inherits(Readable, Stream);
+
+var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
+
+function prependListener(emitter, event, fn) {
+ // Sadly this is not cacheable as some libraries bundle their own
+ // event emitter implementation with them.
+ if (typeof emitter.prependListener === 'function') {
+ return emitter.prependListener(event, fn);
+ } else {
+ // 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]];
}
+}
- if (a === b) return 0
+function ReadableState(options, stream) {
+ Duplex = Duplex || require('./_stream_duplex');
- var x = a.length
- var y = b.length
+ options = options || {};
- var i = 0
- var len = Math.min(x, y)
- while (i < len) {
- if (a[i] !== b[i]) break
+ // 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;
- ++i
- }
+ if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
- if (i !== len) {
- x = a[i]
- y = b[i]
- }
+ // 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;
- if (x < y) return -1
- if (y < x) return 1
- return 0
-}
+ // cast to ints.
+ this.highWaterMark = Math.floor(this.highWaterMark);
-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
- }
-}
+ // A linked list is used to store data chunks instead of an array because the
+ // linked list can remove elements from the beginning faster than
+ // array.shift()
+ this.buffer = new BufferList();
+ this.length = 0;
+ this.pipes = null;
+ this.pipesCount = 0;
+ this.flowing = null;
+ this.ended = false;
+ this.endEmitted = false;
+ this.reading = false;
-Buffer.concat = function concat (list, length) {
- if (!isArray(list)) throw new TypeError('list argument must be an Array of Buffers.')
+ // 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;
- if (list.length === 0) {
- return new Buffer(0)
- }
+ // 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;
- var i
- if (length === undefined) {
- length = 0
- for (i = 0; i < list.length; i++) {
- length += list[i].length
- }
- }
+ // has it been destroyed
+ this.destroyed = false;
- var buf = new Buffer(length)
- var pos = 0
- for (i = 0; i < list.length; i++) {
- var item = list[i]
- item.copy(buf, pos)
- pos += item.length
- }
- return buf
-}
+ // Crypto is kind of old and crusty. Historically, its default string
+ // encoding is 'binary' so we have to make this configurable.
+ // Everything else in the universe uses 'utf8', though.
+ this.defaultEncoding = options.defaultEncoding || 'utf8';
-function byteLength (string, encoding) {
- if (typeof string !== 'string') string = '' + string
+ // the number of writers that are awaiting a drain event in .pipe()s
+ this.awaitDrain = 0;
- var len = string.length
- if (len === 0) return 0
+ // if true, a maybeReadMore has been scheduled
+ this.readingMore = false;
- // 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
- }
+ 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.byteLength = byteLength
-// pre-set for values that may exist in the future
-Buffer.prototype.length = undefined
-Buffer.prototype.parent = undefined
+function Readable(options) {
+ Duplex = Duplex || require('./_stream_duplex');
-function slowToString (encoding, start, end) {
- var loweredCase = false
+ if (!(this instanceof Readable)) return new Readable(options);
- start = start | 0
- end = end === undefined || end === Infinity ? this.length : end | 0
+ this._readableState = new ReadableState(options, this);
- if (!encoding) encoding = 'utf8'
- if (start < 0) start = 0
- if (end > this.length) end = this.length
- if (end <= start) return ''
+ // legacy
+ this.readable = true;
- while (true) {
- switch (encoding) {
- case 'hex':
- return hexSlice(this, start, end)
+ if (options) {
+ if (typeof options.read === 'function') this._read = options.read;
- case 'utf8':
- case 'utf-8':
- return utf8Slice(this, start, end)
+ if (typeof options.destroy === 'function') this._destroy = options.destroy;
+ }
- case 'ascii':
- return asciiSlice(this, start, end)
+ Stream.call(this);
+}
+
+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;
+ }
+
+ // backward compatibility, the user is explicitly
+ // managing destroyed
+ this._readableState.destroyed = value;
+ }
+});
+
+Readable.prototype.destroy = destroyImpl.destroy;
+Readable.prototype._undestroy = destroyImpl.undestroy;
+Readable.prototype._destroy = function (err, cb) {
+ this.push(null);
+ cb(err);
+};
+
+// 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;
+ }
- case 'binary':
- return binarySlice(this, start, end)
+ return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
+};
- case 'base64':
- return base64Slice(this, start, end)
+// Unshift should *always* be something directly out of read()
+Readable.prototype.unshift = function (chunk) {
+ return readableAddChunk(this, chunk, null, true, false);
+};
- case 'ucs2':
- case 'ucs-2':
- case 'utf16le':
- case 'utf-16le':
- return utf16leSlice(this, start, end)
+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);
+ }
- default:
- if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
- encoding = (encoding + '').toLowerCase()
- loweredCase = true
+ 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;
}
}
-}
-Buffer.prototype.toString = function toString () {
- var length = this.length | 0
- if (length === 0) return ''
- if (arguments.length === 0) return utf8Slice(this, 0, length)
- return slowToString.apply(this, arguments)
+ return needMoreData(state);
}
-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
+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 (state.needReadable) emitReadable(stream);
+ }
+ maybeReadMore(stream, state);
}
-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 += ' ... '
+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 '<Buffer ' + str + '>'
+ return er;
}
-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)
+// if it's past the high water mark, we can push in some more.
+// Also, if we have no data yet, we can stand some
+// more bytes. This is to work around cases where hwm=0,
+// such as the repl. Also, if the push() triggered a
+// readable event, and the user called read(largeNumber) such that
+// needReadable was set, then we ought to push more, so that another
+// 'readable' event will be triggered.
+function needMoreData(state) {
+ return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
}
-Buffer.prototype.indexOf = function indexOf (val, byteOffset) {
- if (byteOffset > 0x7fffffff) byteOffset = 0x7fffffff
- else if (byteOffset < -0x80000000) byteOffset = -0x80000000
- byteOffset >>= 0
+Readable.prototype.isPaused = function () {
+ return this._readableState.flowing === false;
+};
- if (this.length === 0) return -1
- if (byteOffset >= this.length) return -1
+// 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;
+};
- // Negative offsets start from the end of the buffer
- if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0)
+// Don't raise the hwm > 8MB
+var MAX_HWM = 0x800000;
+function computeNewHighWaterMark(n) {
+ if (n >= MAX_HWM) {
+ n = MAX_HWM;
+ } else {
+ // Get the next highest power of 2 to prevent increasing hwm excessively in
+ // tiny amounts
+ n--;
+ n |= n >>> 1;
+ n |= n >>> 2;
+ n |= n >>> 4;
+ n |= n >>> 8;
+ n |= n >>> 16;
+ n++;
+ }
+ return n;
+}
- 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)
+// 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 (Buffer.isBuffer(val)) {
- return arrayIndexOf(this, val, byteOffset)
+ // 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;
}
- 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)
+ return state.length;
+}
+
+// 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 (n !== 0) state.emittedReadable = false;
+
+ // if we're doing read(0) to trigger a readable event, but we
+ // already have a bunch of data in the buffer, then just trigger
+ // the 'readable' event and move on.
+ if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
+ debug('read: emitReadable', state.length, state.ended);
+ if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
+ return null;
}
- function arrayIndexOf (arr, val, byteOffset) {
- var foundIndex = -1
- for (var i = 0; byteOffset + i < arr.length; i++) {
- if (arr[byteOffset + i] === val[foundIndex === -1 ? 0 : i - foundIndex]) {
- if (foundIndex === -1) foundIndex = i
- if (i - foundIndex + 1 === val.length) return byteOffset + foundIndex
- } else {
- foundIndex = -1
- }
- }
- return -1
+ n = howMuchToRead(n, state);
+
+ // 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;
}
- throw new TypeError('val must be string, number or Buffer')
-}
+ // 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.
-// `get` is deprecated
-Buffer.prototype.get = function get (offset) {
- console.log('.get() is deprecated. Access using array indexes instead.')
- return this.readUInt8(offset)
-}
+ // if we need a readable event, then we need to do some reading.
+ var doRead = state.needReadable;
+ debug('need readable', doRead);
-// `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)
-}
+ // 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);
+ }
-function hexWrite (buf, string, offset, length) {
- offset = Number(offset) || 0
- var remaining = buf.length - offset
- if (!length) {
- length = remaining
+ // 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);
+ }
+
+ var ret;
+ if (n > 0) ret = fromList(n, state);else ret = null;
+
+ if (ret === null) {
+ state.needReadable = true;
+ n = 0;
} else {
- length = Number(length)
- if (length > remaining) {
- length = remaining
- }
+ state.length -= n;
}
- // must be an even number of digits
- var strLen = string.length
- if (strLen % 2 !== 0) throw new Error('Invalid hex string')
+ 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 (length > strLen / 2) {
- length = strLen / 2
+ // If we tried to read() past the EOF, then emit end on the next tick.
+ if (nOrig !== n && state.ended) endReadable(this);
}
- 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
+
+ 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;
+ }
}
- return i
-}
+ state.ended = true;
-function utf8Write (buf, string, offset, length) {
- return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
+ // emit 'readable' now to make sure it gets picked up.
+ emitReadable(stream);
}
-function asciiWrite (buf, string, offset, length) {
- return blitBuffer(asciiToBytes(string), buf, offset, length)
+// 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 binaryWrite (buf, string, offset, length) {
- return asciiWrite(buf, string, offset, length)
+function emitReadable_(stream) {
+ debug('emit readable');
+ stream.emit('readable');
+ flow(stream);
}
-function base64Write (buf, string, offset, length) {
- return blitBuffer(base64ToBytes(string), buf, offset, length)
+// 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 ucs2Write (buf, string, offset, length) {
- return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
+function maybeReadMore_(stream, state) {
+ var len = state.length;
+ while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
+ debug('maybeReadMore read 0');
+ stream.read(0);
+ if (len === state.length)
+ // didn't get any data, stop spinning.
+ break;else len = state.length;
+ }
+ state.readingMore = false;
}
-Buffer.prototype.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
- }
+// 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'));
+};
- var remaining = this.length - offset
- if (length === undefined || length > remaining) length = remaining
+Readable.prototype.pipe = function (dest, pipeOpts) {
+ var src = this;
+ var state = this._readableState;
- if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
- throw new RangeError('attempt to write outside buffer bounds')
+ 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);
- if (!encoding) encoding = 'utf8'
+ var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
- var loweredCase = false
- for (;;) {
- switch (encoding) {
- case 'hex':
- return hexWrite(this, string, offset, length)
+ var endFn = doEnd ? onend : unpipe;
+ if (state.endEmitted) processNextTick(endFn);else src.once('end', endFn);
- case 'utf8':
- case 'utf-8':
- return utf8Write(this, string, offset, length)
+ dest.on('unpipe', onunpipe);
+ function onunpipe(readable, unpipeInfo) {
+ debug('onunpipe');
+ if (readable === src) {
+ if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
+ unpipeInfo.hasUnpiped = true;
+ cleanup();
+ }
+ }
+ }
- case 'ascii':
- return asciiWrite(this, string, offset, length)
+ function onend() {
+ debug('onend');
+ dest.end();
+ }
- case 'binary':
- return binaryWrite(this, string, offset, length)
+ // 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);
- case 'base64':
- // Warning: maxLength not taken into account in base64Write
- return base64Write(this, string, offset, length)
+ 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);
- case 'ucs2':
- case 'ucs-2':
- case 'utf16le':
- case 'utf-16le':
- return ucs2Write(this, string, offset, length)
+ cleanedUp = true;
- default:
- if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
- encoding = ('' + encoding).toLowerCase()
- loweredCase = true
- }
+ // if the reader is waiting for a drain event from this
+ // specific writer, then it would cause it to never start
+ // flowing again.
+ // So, if this is awaiting a drain, then we just call it now.
+ // If we don't know, then assume that we are waiting for one.
+ if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
}
-}
-Buffer.prototype.toJSON = function toJSON () {
- return {
- type: 'Buffer',
- data: Array.prototype.slice.call(this._arr || this, 0)
+ // 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();
+ }
}
-}
-function base64Slice (buf, start, end) {
- if (start === 0 && end === buf.length) {
- return base64.fromByteArray(buf)
- } else {
- return base64.fromByteArray(buf.slice(start, end))
+ // 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 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
+ // Make sure our error handler is attached before userland ones.
+ prependListener(dest, 'error', onerror);
- if (firstByte > 0xEF) {
- bytesPerSequence = 4
- } else if (firstByte > 0xDF) {
- bytesPerSequence = 3
- } else if (firstByte > 0xBF) {
- bytesPerSequence = 2
- } else {
- bytesPerSequence = 1
- }
+ // 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);
- 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
- }
- }
- }
- }
+ function unpipe() {
+ debug('unpipe');
+ src.unpipe(dest);
+ }
- 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
- }
+ // tell the dest that it's being piped to
+ dest.emit('pipe', src);
- res.push(codePoint)
+ // start the flow if it hasn't been started already.
+ if (!state.flowing) {
+ debug('pipe resume');
+ src.resume();
}
- return String.fromCharCode.apply(String, res)
+ return dest;
+};
+
+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);
+ }
+ };
}
-function asciiSlice (buf, start, end) {
- var ret = ''
- end = Math.min(buf.length, end)
+Readable.prototype.unpipe = function (dest) {
+ var state = this._readableState;
+ var unpipeInfo = { hasUnpiped: false };
- for (var i = start; i < end; i++) {
- ret += String.fromCharCode(buf[i] & 0x7F)
- }
- return ret
-}
+ // if we're not piping anywhere, then do nothing.
+ if (state.pipesCount === 0) return this;
-function binarySlice (buf, start, end) {
- var ret = ''
- end = Math.min(buf.length, end)
+ // 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;
- for (var i = start; i < end; i++) {
- ret += String.fromCharCode(buf[i])
+ if (!dest) dest = state.pipes;
+
+ // got a match.
+ state.pipes = null;
+ state.pipesCount = 0;
+ state.flowing = false;
+ if (dest) dest.emit('unpipe', this, unpipeInfo);
+ return this;
}
- return ret
-}
-function hexSlice (buf, start, end) {
- var len = buf.length
+ // slow case. multiple pipe destinations.
- if (!start || start < 0) start = 0
- if (!end || end < 0 || end > len) end = len
+ if (!dest) {
+ // remove all.
+ var dests = state.pipes;
+ var len = state.pipesCount;
+ state.pipes = null;
+ state.pipesCount = 0;
+ state.flowing = false;
- var out = ''
- for (var i = start; i < end; i++) {
- out += toHex(buf[i])
+ for (var i = 0; i < len; i++) {
+ dests[i].emit('unpipe', this, unpipeInfo);
+ }return this;
}
- return out
-}
-function utf16leSlice (buf, start, end) {
- var bytes = buf.slice(start, end)
- var res = ''
- for (var i = 0; i < bytes.length; i += 2) {
- res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
- }
- return res
-}
+ // try to find the right one.
+ var index = indexOf(state.pipes, dest);
+ if (index === -1) return this;
-Buffer.prototype.slice = function slice (start, end) {
- var len = this.length
- start = ~~start
- end = end === undefined ? len : ~~end
+ state.pipes.splice(index, 1);
+ state.pipesCount -= 1;
+ if (state.pipesCount === 1) state.pipes = state.pipes[0];
- if (start < 0) {
- start += len
- if (start < 0) start = 0
- } else if (start > len) {
- start = len
- }
+ dest.emit('unpipe', this, unpipeInfo);
- if (end < 0) {
- end += len
- if (end < 0) end = 0
- } else if (end > len) {
- end = len
- }
+ return this;
+};
- if (end < start) end = start
+// 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);
- 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]
+ 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);
+ }
}
}
- if (newBuf.length) newBuf.parent = this.parent || this
-
- return newBuf
-}
+ return res;
+};
+Readable.prototype.addListener = Readable.prototype.on;
-/*
- * 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 nReadingNextTick(self) {
+ debug('readable nexttick read 0');
+ self.read(0);
}
-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
+// 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;
+};
- return val
-}
-
-Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
- offset = offset | 0
- byteLength = byteLength | 0
- if (!noAssert) {
- checkOffset(offset, byteLength, this.length)
+function resume(stream, state) {
+ if (!state.resumeScheduled) {
+ state.resumeScheduled = true;
+ processNextTick(resume_, stream, state);
}
+}
- var val = this[offset + --byteLength]
- var mul = 1
- while (byteLength > 0 && (mul *= 0x100)) {
- val += this[offset + --byteLength] * mul
+function resume_(stream, state) {
+ if (!state.reading) {
+ debug('resume read 0');
+ stream.read(0);
}
- return val
+ state.resumeScheduled = false;
+ state.awaitDrain = 0;
+ stream.emit('resume');
+ flow(stream);
+ if (state.flowing && !state.reading) stream.read(0);
}
-Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 1, this.length)
- return this[offset]
-}
+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;
+};
-Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 2, this.length)
- return this[offset] | (this[offset + 1] << 8)
+function flow(stream) {
+ var state = stream._readableState;
+ debug('flow', state.flowing);
+ while (state.flowing && stream.read() !== null) {}
}
-Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 2, this.length)
- return (this[offset] << 8) | this[offset + 1]
-}
+// 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;
-Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
+ 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);
+ }
- return ((this[offset]) |
- (this[offset + 1] << 8) |
- (this[offset + 2] << 16)) +
- (this[offset + 3] * 0x1000000)
-}
+ self.push(null);
+ });
-Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
+ stream.on('data', function (chunk) {
+ debug('wrapped data');
+ if (state.decoder) chunk = state.decoder.write(chunk);
- return (this[offset] * 0x1000000) +
- ((this[offset + 1] << 16) |
- (this[offset + 2] << 8) |
- this[offset + 3])
-}
+ // don't skip over falsy values in objectMode
+ if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
-Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
- offset = offset | 0
- byteLength = byteLength | 0
- if (!noAssert) checkOffset(offset, byteLength, this.length)
+ var ret = self.push(chunk);
+ if (!ret) {
+ paused = true;
+ stream.pause();
+ }
+ });
- var val = this[offset]
- var mul = 1
- var i = 0
- while (++i < byteLength && (mul *= 0x100)) {
- val += this[offset + i] * mul
+ // 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);
+ }
}
- mul *= 0x80
-
- if (val >= mul) val -= Math.pow(2, 8 * byteLength)
- return val
-}
+ // proxy certain important events.
+ for (var n = 0; n < kProxyEvents.length; n++) {
+ stream.on(kProxyEvents[n], self.emit.bind(self, kProxyEvents[n]));
+ }
-Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
- offset = offset | 0
- byteLength = byteLength | 0
- if (!noAssert) checkOffset(offset, byteLength, this.length)
+ // 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();
+ }
+ };
- var i = byteLength
- var mul = 1
- var val = this[offset + --i]
- while (i > 0 && (mul *= 0x100)) {
- val += this[offset + --i] * mul
- }
- mul *= 0x80
+ return self;
+};
- if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+// exposed for testing purposes only.
+Readable._fromList = fromList;
- return val
-}
+// 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;
-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)
-}
+ 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);
+ }
-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
+ return ret;
}
-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
+// 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;
}
-Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
-
- return (this[offset]) |
- (this[offset + 1] << 8) |
- (this[offset + 2] << 16) |
- (this[offset + 3] << 24)
+// 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;
}
-Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
-
- return (this[offset] << 24) |
- (this[offset + 1] << 16) |
- (this[offset + 2] << 8) |
- (this[offset + 3])
+// 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;
}
-Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
- return ieee754.read(this, offset, true, 23, 4)
-}
+function endReadable(stream) {
+ var state = stream._readableState;
-Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 4, this.length)
- return ieee754.read(this, offset, false, 23, 4)
-}
+ // 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.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 8, this.length)
- return ieee754.read(this, offset, true, 52, 8)
+ if (!state.endEmitted) {
+ state.ended = true;
+ processNextTick(endReadableNT, state, stream);
+ }
}
-Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
- if (!noAssert) checkOffset(offset, 8, this.length)
- return ieee754.read(this, offset, false, 52, 8)
+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 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')
+function forEach(xs, f) {
+ for (var i = 0, l = xs.length; i < l; i++) {
+ f(xs[i], i);
+ }
}
-Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
- value = +value
- offset = offset | 0
- byteLength = byteLength | 0
- if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)
-
- var mul = 1
- var i = 0
- this[offset] = value & 0xFF
- while (++i < byteLength && (mul *= 0x100)) {
- this[offset + i] = (value / mul) & 0xFF
+function indexOf(xs, x) {
+ for (var i = 0, l = xs.length; i < l; i++) {
+ if (xs[i] === x) return i;
}
-
- return offset + byteLength
+ return -1;
}
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./_stream_duplex":14,"./internal/streams/BufferList":19,"./internal/streams/destroy":20,"./internal/streams/stream":21,"_process":12,"core-util-is":5,"events":6,"inherits":8,"isarray":10,"process-nextick-args":11,"safe-buffer":26,"string_decoder/":28,"util":3}],17:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// 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.
-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)
+'use strict';
- var i = byteLength - 1
- var mul = 1
- this[offset + i] = value & 0xFF
- while (--i >= 0 && (mul *= 0x100)) {
- this[offset + i] = (value / mul) & 0xFF
- }
+module.exports = Transform;
- return offset + byteLength
-}
+var Duplex = require('./_stream_duplex');
-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
-}
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
-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
- }
-}
+util.inherits(Transform, Duplex);
-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)
- }
- return offset + 2
-}
+function TransformState(stream) {
+ this.afterTransform = function (er, data) {
+ return afterTransform(stream, er, data);
+ };
-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)
- }
- return offset + 2
+ this.needTransform = false;
+ this.transforming = false;
+ this.writecb = null;
+ this.writechunk = null;
+ this.writeencoding = null;
}
-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
- }
-}
+function afterTransform(stream, er, data) {
+ var ts = stream._transformState;
+ ts.transforming = false;
-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)
- }
- return offset + 4
-}
+ var cb = ts.writecb;
-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)
+ if (!cb) {
+ return stream.emit('error', new Error('write callback called multiple times'));
}
- return offset + 4
-}
-Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
- value = +value
- offset = offset | 0
- if (!noAssert) {
- var limit = Math.pow(2, 8 * byteLength - 1)
+ ts.writechunk = null;
+ ts.writecb = null;
- checkInt(this, value, offset, byteLength, limit - 1, -limit)
- }
+ if (data !== null && data !== undefined) stream.push(data);
- 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
- }
+ cb(er);
- return offset + byteLength
+ var rs = stream._readableState;
+ rs.reading = false;
+ if (rs.needReadable || rs.length < rs.highWaterMark) {
+ stream._read(rs.highWaterMark);
+ }
}
-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 Transform(options) {
+ if (!(this instanceof Transform)) return new Transform(options);
- checkInt(this, value, offset, byteLength, limit - 1, -limit)
- }
+ Duplex.call(this, options);
- 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
- }
+ this._transformState = new TransformState(this);
- return offset + byteLength
-}
+ var stream = this;
-Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
- value = +value
- offset = offset | 0
- if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
- if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
- if (value < 0) value = 0xff + value + 1
- this[offset] = value
- return offset + 1
-}
+ // start out asking for a readable event once data is transformed.
+ this._readableState.needReadable = true;
-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)
- }
- return offset + 2
-}
+ // 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;
-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
-}
+ if (options) {
+ if (typeof options.transform === 'function') this._transform = options.transform;
-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)
+ if (typeof options.flush === 'function') this._flush = options.flush;
}
- 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)
- }
- return offset + 4
+ // 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);
+ });
}
-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')
-}
+Transform.prototype.push = function (chunk, encoding) {
+ this._transformState.needTransform = false;
+ return Duplex.prototype.push.call(this, chunk, encoding);
+};
-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
-}
+// 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');
+};
-Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
- return writeFloat(this, value, offset, true, noAssert)
-}
+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);
+ }
+};
-Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
- return writeFloat(this, value, offset, false, noAssert)
-}
+// 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;
-function writeDouble (buf, value, offset, littleEndian, noAssert) {
- if (!noAssert) {
- checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
+ 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;
}
- ieee754.write(buf, value, offset, littleEndian, 52, 8)
- return offset + 8
-}
-
-Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
- return writeDouble(this, value, offset, true, noAssert)
-}
+};
-Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
- return writeDouble(this, value, offset, false, noAssert)
-}
+Transform.prototype._destroy = function (err, cb) {
+ var _this = this;
-// 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
+ Duplex.prototype._destroy.call(this, err, function (err2) {
+ cb(err2);
+ _this.emit('close');
+ });
+};
- // Copy 0 bytes; we're done
- if (end === start) return 0
- if (target.length === 0 || this.length === 0) return 0
+function done(stream, er, data) {
+ if (er) return stream.emit('error', er);
- // 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 (data !== null && data !== undefined) stream.push(data);
- // Are we oob?
- if (end > this.length) end = this.length
- if (target.length - targetStart < end - start) {
- end = target.length - targetStart + start
- }
+ // if there's nothing in the write buffer, then that means
+ // that nothing more will ever be provided
+ var ws = stream._writableState;
+ var ts = stream._transformState;
- var len = end - start
- var i
+ if (ws.length) throw new Error('Calling transform done when ws.length != 0');
- if (this === target && start < targetStart && targetStart < end) {
- // descending copy from end
- for (i = len - 1; i >= 0; i--) {
- target[i + targetStart] = this[i + start]
- }
- } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
- // ascending copy from start
- for (i = 0; i < len; i++) {
- target[i + targetStart] = this[i + start]
- }
- } else {
- target._set(this.subarray(start, start + len), targetStart)
- }
+ if (ts.transforming) throw new Error('Calling transform done when still transforming');
- return len
+ 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
+// 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.
-// 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
+// A bit simpler than readable streams.
+// Implement an async ._write(chunk, encoding, cb), and it'll handle all
+// the drain event emission and buffering.
- if (end < start) throw new RangeError('end < start')
+'use strict';
- // Fill 0 bytes; we're done
- if (end === start) return
- if (this.length === 0) return
+/*<replacement>*/
- 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')
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
- 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]
- }
- }
+module.exports = Writable;
- return this
+/* <replacement> */
+function WriteReq(chunk, encoding, cb) {
+ this.chunk = chunk;
+ this.encoding = encoding;
+ this.callback = cb;
+ this.next = null;
}
-/**
- * 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')
- }
+// 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;
+
+ this.next = null;
+ this.entry = null;
+ this.finish = function () {
+ onCorkedFinish(_this, state);
+ };
}
+/* </replacement> */
-// HELPER FUNCTIONS
-// ================
+/*<replacement>*/
+var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick;
+/*</replacement>*/
-var BP = Buffer.prototype
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
-/**
- * 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
+Writable.WritableState = WritableState;
- return arr
-}
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
-var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g
+/*<replacement>*/
+var internalUtil = {
+ deprecate: require('util-deprecate')
+};
+/*</replacement>*/
-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 + '='
- }
- return str
-}
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
-function stringtrim (str) {
- if (str.trim) return str.trim()
- return str.replace(/^\s+|\s+$/g, '')
+/*<replacement>*/
+var Buffer = require('safe-buffer').Buffer;
+var OurUint8Array = global.Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+ return Buffer.from(chunk);
}
-
-function toHex (n) {
- if (n < 16) return '0' + n.toString(16)
- return n.toString(16)
+function _isUint8Array(obj) {
+ return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}
+/*</replacement>*/
-function utf8ToBytes (string, units) {
- units = units || Infinity
- var codePoint
- var length = string.length
- var leadSurrogate = null
- var bytes = []
+var destroyImpl = require('./internal/streams/destroy');
- for (var i = 0; i < length; i++) {
- codePoint = string.charCodeAt(i)
+util.inherits(Writable, Stream);
- // 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
+function nop() {}
- } else if (i + 1 === length) {
- // unpaired lead
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- continue
- }
+function WritableState(options, stream) {
+ Duplex = Duplex || require('./_stream_duplex');
- // valid lead
- leadSurrogate = codePoint
+ options = options || {};
- continue
- }
+ // object stream flag to indicate whether or not this stream
+ // contains buffers or objects.
+ this.objectMode = !!options.objectMode;
- // 2 leads in a row
- if (codePoint < 0xDC00) {
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- leadSurrogate = codePoint
- continue
- }
+ if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
- // valid surrogate pair
- codePoint = leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00 | 0x10000
+ // 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;
- } else if (leadSurrogate) {
- // valid bmp char, but last char was a lead
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- }
+ // cast to ints.
+ this.highWaterMark = Math.floor(this.highWaterMark);
- leadSurrogate = null
+ // if _final has been called
+ this.finalCalled = false;
- // 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')
- }
- }
+ // 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;
- return bytes
-}
+ // has it been destroyed
+ this.destroyed = false;
-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
-}
+ // 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;
-function utf16leToBytes (str, units) {
- var c, hi, lo
- var byteArray = []
- for (var i = 0; i < str.length; i++) {
- if ((units -= 2) < 0) break
+ // 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';
- c = str.charCodeAt(i)
- hi = c >> 8
- lo = c % 256
- byteArray.push(lo)
- byteArray.push(hi)
- }
+ // 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;
- return byteArray
-}
+ // a flag to see when we're in the middle of a write.
+ this.writing = false;
-function base64ToBytes (str) {
- return base64.toByteArray(base64clean(str))
-}
+ // when true all writes will be buffered until .uncork() call
+ this.corked = 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]
- }
- return i
-}
+ // 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;
-},{"base64-js":8,"ieee754":9,"is-array":10}],8:[function(require,module,exports){
-var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
-
-;(function (exports) {
- 'use strict';
-
- var Arr = (typeof Uint8Array !== 'undefined')
- ? Uint8Array
- : Array
-
- var PLUS = '+'.charCodeAt(0)
- var SLASH = '/'.charCodeAt(0)
- var NUMBER = '0'.charCodeAt(0)
- var LOWER = 'a'.charCodeAt(0)
- var UPPER = 'A'.charCodeAt(0)
- var PLUS_URL_SAFE = '-'.charCodeAt(0)
- var SLASH_URL_SAFE = '_'.charCodeAt(0)
-
- function decode (elt) {
- var code = elt.charCodeAt(0)
- if (code === PLUS ||
- code === PLUS_URL_SAFE)
- return 62 // '+'
- if (code === SLASH ||
- code === SLASH_URL_SAFE)
- return 63 // '/'
- if (code < NUMBER)
- return -1 //no match
- if (code < NUMBER + 10)
- return code - NUMBER + 26 + 26
- if (code < UPPER + 26)
- return code - UPPER
- if (code < LOWER + 26)
- return code - LOWER + 26
- }
+ // a flag to know if we're processing previously buffered items, which
+ // may call the _write() callback in the same tick, so that we don't
+ // end up in an overlapped onwrite situation.
+ this.bufferProcessing = false;
- function b64ToByteArray (b64) {
- var i, j, l, tmp, placeHolders, arr
+ // the callback that's passed to _write(chunk,cb)
+ this.onwrite = function (er) {
+ onwrite(stream, er);
+ };
- if (b64.length % 4 > 0) {
- throw new Error('Invalid string. Length must be a multiple of 4')
- }
+ // the callback that the user supplies to write(chunk,encoding,cb)
+ this.writecb = null;
- // 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
+ // the amount that is being written when _write is called.
+ this.writelen = 0;
- // base64 is 4/3 + up to two characters of the original data
- arr = new Arr(b64.length * 3 / 4 - placeHolders)
+ this.bufferedRequest = null;
+ this.lastBufferedRequest = null;
- // if there are placeholders, only get up to the last complete 4 chars
- l = placeHolders > 0 ? b64.length - 4 : b64.length
+ // number of pending user-supplied write callbacks
+ // this must be 0 before 'finish' can be emitted
+ this.pendingcb = 0;
- var L = 0
+ // emit prefinish if the only thing we're waiting for is _write cbs
+ // This is relevant for synchronous Transform streams
+ this.prefinished = false;
- function push (v) {
- arr[L++] = v
- }
+ // True if the error was already emitted and should not be thrown again
+ this.errorEmitted = false;
- 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)
- }
+ // count buffered requests
+ this.bufferedRequestCount = 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)
- }
+ // allocate the first CorkedRequest, there is always
+ // one allocated and free to use, and we maintain at most two
+ this.corkedRequestsFree = new CorkedRequest(this);
+}
- return arr
- }
+WritableState.prototype.getBuffer = function getBuffer() {
+ var current = this.bufferedRequest;
+ var out = [];
+ while (current) {
+ out.push(current);
+ current = current.next;
+ }
+ return out;
+};
- function uint8ToBase64 (uint8) {
- var i,
- extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
- output = "",
- temp, length
+(function () {
+ try {
+ Object.defineProperty(WritableState.prototype, 'buffer', {
+ get: internalUtil.deprecate(function () {
+ return this.getBuffer();
+ }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
+ });
+ } catch (_) {}
+})();
- function encode (num) {
- return lookup.charAt(num)
- }
+// 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;
- function tripletToBase64 (num) {
- return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F)
- }
+ return object && object._writableState instanceof WritableState;
+ }
+ });
+} else {
+ realHasInstance = function (object) {
+ return object instanceof this;
+ };
+}
- // 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 Writable(options) {
+ Duplex = Duplex || require('./_stream_duplex');
- // 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
- }
+ // Writable ctor is applied to Duplexes, too.
+ // `realHasInstance` is necessary because using plain `instanceof`
+ // would return false, as no `_writableState` property is attached.
- return output
- }
+ // 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);
+ }
- exports.toByteArray = b64ToByteArray
- exports.fromByteArray = uint8ToBase64
-}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))
+ this._writableState = new WritableState(options, this);
-},{}],9:[function(require,module,exports){
-exports.read = function (buffer, offset, isLE, mLen, nBytes) {
- var e, m
- var eLen = nBytes * 8 - mLen - 1
- var eMax = (1 << eLen) - 1
- var eBias = eMax >> 1
- var nBits = -7
- var i = isLE ? (nBytes - 1) : 0
- var d = isLE ? -1 : 1
- var s = buffer[offset + i]
+ // legacy.
+ this.writable = true;
- i += d
+ if (options) {
+ if (typeof options.write === 'function') this._write = options.write;
- e = s & ((1 << (-nBits)) - 1)
- s >>= (-nBits)
- nBits += eLen
- for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+ if (typeof options.writev === 'function') this._writev = options.writev;
- m = e & ((1 << (-nBits)) - 1)
- e >>= (-nBits)
- nBits += mLen
- for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+ if (typeof options.destroy === 'function') this._destroy = options.destroy;
- if (e === 0) {
- e = 1 - eBias
- } else if (e === eMax) {
- return m ? NaN : ((s ? -1 : 1) * Infinity)
- } else {
- m = m + Math.pow(2, mLen)
- e = e - eBias
+ if (typeof options.final === 'function') this._final = options.final;
}
- return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
+
+ Stream.call(this);
}
-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
+// Otherwise people can pipe Writable streams, which is just wrong.
+Writable.prototype.pipe = function () {
+ this.emit('error', new Error('Cannot pipe, not readable'));
+};
- value = Math.abs(value)
+function writeAfterEnd(stream, cb) {
+ var er = new Error('write after end');
+ // TODO: defer error events consistently everywhere, not just the cb
+ stream.emit('error', er);
+ processNextTick(cb, er);
+}
- if (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
- }
+// 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 (e + eBias >= eMax) {
- m = 0
- e = eMax
- } else if (e + eBias >= 1) {
- m = (value * c - 1) * Math.pow(2, mLen)
- e = e + eBias
- } else {
- m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
- e = 0
- }
+ if (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');
}
-
- for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
-
- e = (e << mLen) | m
- eLen += mLen
- for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
-
- buffer[offset + i - d] |= s * 128
+ if (er) {
+ stream.emit('error', er);
+ processNextTick(cb, er);
+ valid = false;
+ }
+ return valid;
}
-},{}],10:[function(require,module,exports){
+Writable.prototype.write = function (chunk, encoding, cb) {
+ var state = this._writableState;
+ var ret = false;
+ var isBuf = _isUint8Array(chunk) && !state.objectMode;
-/**
- * isArray
- */
+ if (isBuf && !Buffer.isBuffer(chunk)) {
+ chunk = _uint8ArrayToBuffer(chunk);
+ }
-var isArray = Array.isArray;
+ if (typeof encoding === 'function') {
+ cb = encoding;
+ encoding = null;
+ }
-/**
- * toString
- */
+ if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
-var str = Object.prototype.toString;
+ if (typeof cb !== 'function') cb = nop;
-/**
- * Whether or not the given `val`
- * is an array.
- *
- * example:
- *
- * isArray([]);
- * // > true
- * isArray(arguments);
- * // > false
- * isArray('');
- * // > false
- *
- * @param {mixed} val
- * @return {bool}
- */
+ if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
+ state.pendingcb++;
+ ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
+ }
-module.exports = isArray || function (val) {
- return !! val && '[object Array]' == str.call(val);
+ return ret;
};
-},{}],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.
+Writable.prototype.cork = function () {
+ var state = this._writableState;
-function EventEmitter() {
- this._events = this._events || {};
- this._maxListeners = this._maxListeners || undefined;
-}
-module.exports = EventEmitter;
+ state.corked++;
+};
-// Backwards-compat with node 0.10.x
-EventEmitter.EventEmitter = EventEmitter;
+Writable.prototype.uncork = function () {
+ var state = this._writableState;
-EventEmitter.prototype._events = undefined;
-EventEmitter.prototype._maxListeners = undefined;
+ if (state.corked) {
+ state.corked--;
-// 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;
+ if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
+ }
+};
-// 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;
+Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
+ // node::ParseEncoding() requires lower case.
+ if (typeof encoding === 'string') encoding = encoding.toLowerCase();
+ if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
+ this._writableState.defaultEncoding = encoding;
return this;
};
-EventEmitter.prototype.emit = function(type) {
- var er, handler, len, args, i, listeners;
-
- if (!this._events)
- this._events = {};
+function decodeChunk(state, chunk, encoding) {
+ if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
+ chunk = Buffer.from(chunk, encoding);
+ }
+ return chunk;
+}
- // 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.');
+// if we're already writing something, then just put this
+// in the queue, and wait our turn. Otherwise, call _write
+// If we return false, then we need a drain event, so set that flag.
+function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
+ if (!isBuf) {
+ var newChunk = decodeChunk(state, chunk, encoding);
+ if (chunk !== newChunk) {
+ isBuf = true;
+ encoding = 'buffer';
+ chunk = newChunk;
}
}
+ var len = state.objectMode ? 1 : chunk.length;
- handler = this._events[type];
+ state.length += len;
- if (isUndefined(handler))
- return false;
+ var ret = state.length < state.highWaterMark;
+ // we must ensure that previous needDrain will not be reset to false.
+ if (!ret) state.needDrain = true;
- 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);
+ if (state.writing || state.corked) {
+ var last = state.lastBufferedRequest;
+ state.lastBufferedRequest = {
+ chunk: chunk,
+ encoding: encoding,
+ isBuf: isBuf,
+ callback: cb,
+ next: null
+ };
+ if (last) {
+ last.next = state.lastBufferedRequest;
+ } else {
+ state.bufferedRequest = state.lastBufferedRequest;
}
- } else if (isObject(handler)) {
- len = arguments.length;
- args = new Array(len - 1);
- for (i = 1; i < len; i++)
- args[i - 1] = arguments[i];
-
- listeners = handler.slice();
- len = listeners.length;
- for (i = 0; i < len; i++)
- listeners[i].apply(this, args);
+ state.bufferedRequestCount += 1;
+ } else {
+ doWrite(stream, state, false, len, chunk, encoding, cb);
}
- return true;
-};
-
-EventEmitter.prototype.addListener = function(type, listener) {
- var m;
-
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
-
- if (!this._events)
- this._events = {};
-
- // To avoid recursion in the case that type === "newListener"! Before
- // adding it to the listeners, first emit "newListener".
- if (this._events.newListener)
- this.emit('newListener', type,
- isFunction(listener.listener) ?
- listener.listener : listener);
+ return ret;
+}
- 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];
+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;
+}
- // Check for listener leak
- if (isObject(this._events[type]) && !this._events[type].warned) {
- var m;
- if (!isUndefined(this._maxListeners)) {
- m = this._maxListeners;
- } else {
- m = EventEmitter.defaultMaxListeners;
- }
+function onwriteError(stream, state, sync, er, cb) {
+ --state.pendingcb;
- 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();
- }
- }
+ 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);
}
+}
- return this;
-};
+function onwriteStateUpdate(state) {
+ state.writing = false;
+ state.writecb = null;
+ state.length -= state.writelen;
+ state.writelen = 0;
+}
-EventEmitter.prototype.on = EventEmitter.prototype.addListener;
+function onwrite(stream, er) {
+ var state = stream._writableState;
+ var sync = state.sync;
+ var cb = state.writecb;
-EventEmitter.prototype.once = function(type, listener) {
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
+ onwriteStateUpdate(state);
- var fired = false;
+ if (er) onwriteError(stream, state, sync, er, cb);else {
+ // Check if we're actually ready to finish, but don't emit yet
+ var finished = needFinish(state);
- function g() {
- this.removeListener(type, g);
+ if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
+ clearBuffer(stream, state);
+ }
- if (!fired) {
- fired = true;
- listener.apply(this, arguments);
+ if (sync) {
+ /*<replacement>*/
+ asyncWrite(afterWrite, stream, state, finished, cb);
+ /*</replacement>*/
+ } else {
+ afterWrite(stream, state, finished, cb);
}
}
+}
- g.listener = listener;
- this.on(type, g);
-
- return this;
-};
-
-// emits a 'removeListener' event iff the listener was removed
-EventEmitter.prototype.removeListener = function(type, listener) {
- var list, position, length, i;
-
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
+function afterWrite(stream, state, finished, cb) {
+ if (!finished) onwriteDrain(stream, state);
+ state.pendingcb--;
+ cb();
+ finishMaybe(stream, state);
+}
- if (!this._events || !this._events[type])
- return this;
+// 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');
+ }
+}
- list = this._events[type];
- length = list.length;
- position = -1;
+// if there's something in the buffer waiting, then process it
+function clearBuffer(stream, state) {
+ state.bufferProcessing = true;
+ var entry = state.bufferedRequest;
- if (list === listener ||
- (isFunction(list.listener) && list.listener === listener)) {
- delete this._events[type];
- if (this._events.removeListener)
- this.emit('removeListener', type, listener);
+ 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;
- } else if (isObject(list)) {
- for (i = length; i-- > 0;) {
- if (list[i] === listener ||
- (list[i].listener && list[i].listener === listener)) {
- position = i;
- break;
- }
+ var count = 0;
+ var allBuffers = true;
+ while (entry) {
+ buffer[count] = entry;
+ if (!entry.isBuf) allBuffers = false;
+ entry = entry.next;
+ count += 1;
}
+ buffer.allBuffers = allBuffers;
- if (position < 0)
- return this;
+ doWrite(stream, state, true, state.length, buffer, '', holder.finish);
- if (list.length === 1) {
- list.length = 0;
- delete this._events[type];
+ // 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 {
- list.splice(position, 1);
+ 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 (this._events.removeListener)
- this.emit('removeListener', type, listener);
+ if (entry === null) state.lastBufferedRequest = null;
}
- return this;
-};
+ state.bufferedRequestCount = 0;
+ state.bufferedRequest = entry;
+ state.bufferProcessing = false;
+}
-EventEmitter.prototype.removeAllListeners = function(type) {
- var key, listeners;
+Writable.prototype._write = function (chunk, encoding, cb) {
+ cb(new Error('_write() is not implemented'));
+};
- if (!this._events)
- return this;
+Writable.prototype._writev = null;
- // 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;
- }
+Writable.prototype.end = function (chunk, encoding, cb) {
+ var state = this._writableState;
- // 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 (typeof chunk === 'function') {
+ cb = chunk;
+ chunk = null;
+ encoding = null;
+ } else if (typeof encoding === 'function') {
+ cb = encoding;
+ encoding = null;
}
- listeners = this._events[type];
+ if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
- if (isFunction(listeners)) {
- this.removeListener(type, listeners);
- } else {
- // LIFO order
- while (listeners.length)
- this.removeListener(type, listeners[listeners.length - 1]);
+ // .end() fully uncorks
+ if (state.corked) {
+ state.corked = 1;
+ this.uncork();
}
- 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.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;
+ // ignore unnecessary end() calls.
+ if (!state.ending && !state.finished) endWritable(this, state, cb);
};
-function isFunction(arg) {
- return typeof arg === 'function';
+function needFinish(state) {
+ return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
}
-
-function isNumber(arg) {
- return typeof arg === 'number';
+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 isObject(arg) {
- return typeof arg === 'object' && arg !== null;
+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 isUndefined(arg) {
- return arg === void 0;
+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;
}
-},{}],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 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;
}
-},{}],13:[function(require,module,exports){
-module.exports = Array.isArray || function (arr) {
- return Object.prototype.toString.call(arr) == '[object Array]';
-};
-
-},{}],14:[function(require,module,exports){
-// shim for using process in browser
-
-var process = module.exports = {};
-var queue = [];
-var draining = false;
-var currentQueue;
-var queueIndex = -1;
-
-function cleanUpNextTick() {
- draining = false;
- if (currentQueue.length) {
- queue = currentQueue.concat(queue);
- } else {
- queueIndex = -1;
- }
- if (queue.length) {
- drainQueue();
- }
+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;
+ }
}
-function drainQueue() {
- if (draining) {
- return;
+Object.defineProperty(Writable.prototype, 'destroyed', {
+ get: function () {
+ if (this._writableState === undefined) {
+ return false;
}
- var timeout = setTimeout(cleanUpNextTick);
- draining = true;
-
- var len = queue.length;
- while(len) {
- currentQueue = queue;
- queue = [];
- while (++queueIndex < len) {
- currentQueue[queueIndex].run();
- }
- queueIndex = -1;
- len = queue.length;
+ return this._writableState.destroyed;
+ },
+ set: function (value) {
+ // we ignore the value if the stream
+ // has not been initialized yet
+ if (!this._writableState) {
+ return;
}
- currentQueue = null;
- draining = false;
- clearTimeout(timeout);
-}
-process.nextTick = function (fun) {
- var args = new Array(arguments.length - 1);
- if (arguments.length > 1) {
- for (var i = 1; i < arguments.length; i++) {
- args[i - 1] = arguments[i];
- }
- }
- queue.push(new Item(fun, args));
- if (queue.length === 1 && !draining) {
- setTimeout(drainQueue, 0);
- }
-};
+ // backward compatibility, the user is explicitly
+ // managing destroyed
+ this._writableState.destroyed = value;
+ }
+});
-// v8 likes predictible objects
-function Item(fun, array) {
- this.fun = fun;
- this.array = array;
-}
-Item.prototype.run = function () {
- this.fun.apply(null, this.array);
+Writable.prototype.destroy = destroyImpl.destroy;
+Writable.prototype._undestroy = destroyImpl.undestroy;
+Writable.prototype._destroy = function (err, cb) {
+ this.end();
+ cb(err);
};
-process.title = 'browser';
-process.browser = true;
-process.env = {};
-process.argv = [];
-process.version = ''; // empty string to avoid regexp issues
-process.versions = {};
+}).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';
-function noop() {}
+/*<replacement>*/
-process.on = noop;
-process.addListener = noop;
-process.once = noop;
-process.off = noop;
-process.removeListener = noop;
-process.removeAllListeners = noop;
-process.emit = noop;
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-process.binding = function (name) {
- throw new Error('process.binding is not supported');
-};
+var Buffer = require('safe-buffer').Buffer;
+/*</replacement>*/
-// TODO(shtylman)
-process.cwd = function () { return '/' };
-process.chdir = function (dir) {
- throw new Error('process.chdir is not supported');
-};
-process.umask = function() { return 0; };
+function copyBuffer(src, target, offset) {
+ src.copy(target, offset);
+}
-},{}],15:[function(require,module,exports){
-module.exports = require("./lib/_stream_duplex.js")
+module.exports = function () {
+ function BufferList() {
+ _classCallCheck(this, BufferList);
-},{"./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.
+ this.head = null;
+ this.tail = null;
+ this.length = 0;
+ }
-// 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.
+ 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;
+ };
-module.exports = Duplex;
+ BufferList.prototype.unshift = function unshift(v) {
+ var entry = { data: v, next: this.head };
+ if (this.length === 0) this.tail = entry;
+ this.head = entry;
+ ++this.length;
+ };
-/*<replacement>*/
-var objectKeys = Object.keys || function (obj) {
- var keys = [];
- for (var key in obj) keys.push(key);
- return keys;
-}
-/*</replacement>*/
+ BufferList.prototype.shift = function shift() {
+ if (this.length === 0) return;
+ var ret = this.head.data;
+ if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
+ --this.length;
+ return ret;
+ };
+ BufferList.prototype.clear = function clear() {
+ this.head = this.tail = null;
+ this.length = 0;
+ };
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+ 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;
+ };
-var Readable = require('./_stream_readable');
-var Writable = require('./_stream_writable');
+ 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;
+ };
-util.inherits(Duplex, Readable);
+ return BufferList;
+}();
+},{"safe-buffer":26}],20:[function(require,module,exports){
+'use strict';
-forEach(objectKeys(Writable.prototype), function(method) {
- if (!Duplex.prototype[method])
- Duplex.prototype[method] = Writable.prototype[method];
-});
+/*<replacement>*/
-function Duplex(options) {
- if (!(this instanceof Duplex))
- return new Duplex(options);
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
- Readable.call(this, options);
- Writable.call(this, options);
+// undocumented cb() API, needed for core, not for public API
+function destroy(err, cb) {
+ var _this = this;
- if (options && options.readable === false)
- this.readable = false;
+ var readableDestroyed = this._readableState && this._readableState.destroyed;
+ var writableDestroyed = this._writableState && this._writableState.destroyed;
- if (options && options.writable === false)
- this.writable = false;
+ if (readableDestroyed || writableDestroyed) {
+ if (cb) {
+ cb(err);
+ } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
+ processNextTick(emitErrorNT, this, err);
+ }
+ return;
+ }
- this.allowHalfOpen = true;
- if (options && options.allowHalfOpen === false)
- this.allowHalfOpen = false;
+ // we set destroyed to true before firing error callbacks in order
+ // to make it re-entrance safe in case destroy() is called within callbacks
- this.once('end', onend);
-}
+ if (this._readableState) {
+ this._readableState.destroyed = true;
+ }
-// the no-half-open enforcer
-function onend() {
- // if we allow half-open state, or if the writable side ended,
- // then we're ok.
- if (this.allowHalfOpen || this._writableState.ended)
- return;
+ // if this is a duplex stream mark the writable part as destroyed as well
+ if (this._writableState) {
+ this._writableState.destroyed = true;
+ }
- // no more data can be written.
- // But allow more writes to happen in this tick.
- process.nextTick(this.end.bind(this));
+ 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 forEach (xs, f) {
- for (var i = 0, l = xs.length; i < l; i++) {
- f(xs[i], i);
+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;
}
}
-}).call(this,require('_process'))
-},{"./_stream_readable":18,"./_stream_writable":20,"_process":14,"core-util-is":21,"inherits":12}],17:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+function emitErrorNT(self, err) {
+ self.emit('error', err);
+}
-// a passthrough stream.
-// basically just the most minimal sort of Transform stream.
-// Every written chunk gets output as-is.
+module.exports = {
+ destroy: destroy,
+ undestroy: undestroy
+};
+},{"process-nextick-args":11}],21:[function(require,module,exports){
+module.exports = require('events').EventEmitter;
-module.exports = PassThrough;
+},{"events":6}],22:[function(require,module,exports){
+module.exports = require('./readable').PassThrough
-var Transform = require('./_stream_transform');
+},{"./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');
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+},{"./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
-util.inherits(PassThrough, Transform);
+},{"./readable":23}],25:[function(require,module,exports){
+module.exports = require('./lib/_stream_writable.js');
-function PassThrough(options) {
- if (!(this instanceof PassThrough))
- return new PassThrough(options);
+},{"./lib/_stream_writable.js":18}],26:[function(require,module,exports){
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
- Transform.call(this, options);
+// 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
}
-PassThrough.prototype._transform = function(chunk, encoding, cb) {
- cb(null, chunk);
-};
+function SafeBuffer (arg, encodingOrOffset, length) {
+ return Buffer(arg, encodingOrOffset, length)
+}
-},{"./_stream_transform":19,"core-util-is":21,"inherits":12}],18:[function(require,module,exports){
-(function (process){
+// 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
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
-module.exports = Readable;
-
-/*<replacement>*/
-var isArray = require('isarray');
-/*</replacement>*/
-
-
-/*<replacement>*/
-var Buffer = require('buffer').Buffer;
-/*</replacement>*/
-
-Readable.ReadableState = ReadableState;
+module.exports = Stream;
var EE = require('events').EventEmitter;
+var inherits = require('inherits');
-/*<replacement>*/
-if (!EE.listenerCount) EE.listenerCount = function(emitter, type) {
- return emitter.listeners(type).length;
-};
-/*</replacement>*/
-
-var Stream = require('stream');
-
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
-
-var StringDecoder;
-
-
-/*<replacement>*/
-var debug = require('util');
-if (debug && debug.debuglog) {
- debug = debug.debuglog('stream');
-} else {
- debug = function () {};
-}
-/*</replacement>*/
-
-
-util.inherits(Readable, Stream);
-
-function ReadableState(options, stream) {
- var Duplex = require('./_stream_duplex');
-
- options = options || {};
-
- // the point at which it stops calling _read() to fill the buffer
- // Note: 0 is a valid value, means "don't call _read preemptively ever"
- var hwm = options.highWaterMark;
- var defaultHwm = options.objectMode ? 16 : 16 * 1024;
- this.highWaterMark = (hwm || hwm === 0) ? hwm : defaultHwm;
-
- // cast to ints.
- this.highWaterMark = ~~this.highWaterMark;
-
- this.buffer = [];
- this.length = 0;
- this.pipes = null;
- this.pipesCount = 0;
- this.flowing = null;
- this.ended = false;
- this.endEmitted = false;
- this.reading = false;
-
- // 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;
-
- // 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;
-
-
- // 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.readableObjectMode;
-
- // 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';
-
- // 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;
- }
-}
-
-function Readable(options) {
- var Duplex = require('./_stream_duplex');
-
- if (!(this instanceof Readable))
- return new Readable(options);
-
- this._readableState = new ReadableState(options, this);
-
- // legacy
- this.readable = true;
-
- 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;
+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');
- if (util.isString(chunk) && !state.objectMode) {
- encoding = encoding || state.defaultEncoding;
- if (encoding !== state.encoding) {
- chunk = new Buffer(chunk, encoding);
- encoding = '';
- }
- }
+// Backwards-compat with node 0.4.x
+Stream.Stream = Stream;
- return readableAddChunk(this, state, chunk, encoding, false);
-};
-// Unshift should *always* be something directly out of read()
-Readable.prototype.unshift = function(chunk) {
- var state = this._readableState;
- return readableAddChunk(this, state, chunk, '', true);
-};
-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);
+// old-style streams. Note that the pipe method (the only relevant
+// part of this class) is overridden in the Readable class.
- if (!addToFront)
- state.reading = false;
+function Stream() {
+ EE.call(this);
+}
- // 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);
+Stream.prototype.pipe = function(dest, options) {
+ var source = this;
- if (state.needReadable)
- emitReadable(stream);
+ function ondata(chunk) {
+ if (dest.writable) {
+ if (false === dest.write(chunk) && source.pause) {
+ source.pause();
}
-
- maybeReadMore(stream, state);
}
- } else if (!addToFront) {
- state.reading = false;
}
- return needMoreData(state);
-}
+ source.on('data', ondata);
+ function ondrain() {
+ if (source.readable && source.resume) {
+ source.resume();
+ }
+ }
+ dest.on('drain', ondrain);
-// 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);
-}
+ // 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);
+ }
-// 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;
-};
+ var didOnEnd = false;
+ function onend() {
+ if (didOnEnd) return;
+ didOnEnd = true;
-// 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++;
+ dest.end();
}
- return n;
-}
-function howMuchToRead(n, state) {
- if (state.length === 0 && state.ended)
- return 0;
- if (state.objectMode)
- return n === 0 ? 0 : 1;
+ function onclose() {
+ if (didOnEnd) return;
+ didOnEnd = true;
- 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;
+ if (typeof dest.destroy === 'function') dest.destroy();
}
- if (n <= 0)
- return 0;
-
- // 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;
+ // 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.
+ }
}
- return n;
-}
+ source.on('error', onerror);
+ dest.on('error', onerror);
-// 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;
+ // remove all the event listeners that were added.
+ function cleanup() {
+ source.removeListener('data', ondata);
+ dest.removeListener('drain', ondrain);
- if (!util.isNumber(n) || n > 0)
- state.emittedReadable = false;
+ source.removeListener('end', onend);
+ source.removeListener('close', onclose);
- // 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;
- }
+ source.removeListener('error', onerror);
+ dest.removeListener('error', onerror);
- n = howMuchToRead(n, state);
+ source.removeListener('end', cleanup);
+ source.removeListener('close', cleanup);
- // 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;
+ dest.removeListener('close', cleanup);
}
- // All the actual chunk generation logic needs to be
- // *below* the call to _read. The reason is that in certain
- // synthetic stream cases, such as passthrough streams, _read
- // may be a completely synchronous operation which may change
- // the state of the read buffer, providing enough data when
- // before there was *not* enough.
- //
- // So, the steps are:
- // 1. Figure out what the state of things will be after we do
- // a read from the buffer.
- //
- // 2. If that resulting state will trigger a _read, then call _read.
- // Note that this may be asynchronous, or synchronous. Yes, it is
- // deeply ugly to write APIs this way, but that still doesn't mean
- // that the Readable class should behave improperly, as streams are
- // designed to be sync/async agnostic.
- // Take note if the _read call is sync or async (ie, if the read call
- // has returned yet), so that we know whether or not it's safe to emit
- // 'readable' etc.
- //
- // 3. Actually pull the requested chunks out of the buffer and return.
+ source.on('end', cleanup);
+ source.on('close', cleanup);
- // if we need a readable event, then we need to do some reading.
- var doRead = state.needReadable;
- debug('need readable', doRead);
+ dest.on('close', cleanup);
- // 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);
- }
+ dest.emit('pipe', source);
- // 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);
- }
+ // Allow for unix-like usage: A.pipe(B).pipe(C)
+ return dest;
+};
- 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;
- }
+},{"events":6,"inherits":8,"readable-stream/duplex.js":13,"readable-stream/passthrough.js":22,"readable-stream/readable.js":23,"readable-stream/transform.js":24,"readable-stream/writable.js":25}],28:[function(require,module,exports){
+'use strict';
- // If _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);
+var Buffer = require('safe-buffer').Buffer;
- var ret;
- if (n > 0)
- ret = fromList(n, state);
- else
- ret = null;
+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;
+ }
+};
- if (util.isNull(ret)) {
- state.needReadable = true;
- n = 0;
+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;
+ }
}
+};
- state.length -= n;
+// 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;
+}
- // 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;
+// 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);
+}
- // 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);
+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 || '';
+};
- if (!util.isNull(ret))
- this.emit('data', ret);
+StringDecoder.prototype.end = utf8End;
- return ret;
-};
+// Returns only complete characters in a Buffer
+StringDecoder.prototype.text = utf8Text;
-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');
+// 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);
}
- return er;
-}
+ 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;
+}
-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;
+// Checks at most 3 bytes at the end of a Buffer in order to detect an
+// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
+// needed to complete the UTF-8 character (if applicable) are returned.
+function utf8CheckIncomplete(self, buf, i) {
+ var j = buf.length - 1;
+ if (j < i) return 0;
+ var nb = utf8CheckByte(buf[j]);
+ if (nb >= 0) {
+ if (nb > 0) self.lastNeed = nb - 1;
+ return nb;
+ }
+ if (--j < i) return 0;
+ nb = utf8CheckByte(buf[j]);
+ if (nb >= 0) {
+ if (nb > 0) self.lastNeed = nb - 2;
+ return nb;
+ }
+ if (--j < i) return 0;
+ nb = utf8CheckByte(buf[j]);
+ if (nb >= 0) {
+ if (nb > 0) {
+ if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
}
+ return nb;
}
- state.ended = true;
+ return 0;
+}
- // emit 'readable' now to make sure it gets picked up.
- emitReadable(stream);
+// Validates as many continuation bytes for a multi-byte UTF-8 character as
+// needed or are available. If we see a non-continuation byte where we expect
+// one, we "replace" the validated continuation bytes we've seen so far with
+// UTF-8 replacement characters ('\ufffd'), to match v8's UTF-8 decoding
+// behavior. The continuation byte check is included three times in the case
+// where all of the continuation bytes for a character exist in the same buffer.
+// It is also done this way as a slight performance increase instead of using a
+// loop.
+function utf8CheckExtraBytes(self, buf, p) {
+ if ((buf[0] & 0xC0) !== 0x80) {
+ self.lastNeed = 0;
+ return '\ufffd'.repeat(p);
+ }
+ if (self.lastNeed > 1 && buf.length > 1) {
+ if ((buf[1] & 0xC0) !== 0x80) {
+ self.lastNeed = 1;
+ return '\ufffd'.repeat(p + 1);
+ }
+ if (self.lastNeed > 2 && buf.length > 2) {
+ if ((buf[2] & 0xC0) !== 0x80) {
+ self.lastNeed = 2;
+ return '\ufffd'.repeat(p + 2);
+ }
+ }
+ }
}
-// Don't emit readable right away in sync mode, because this can trigger
-// another read() call => stack overflow. This way, it might trigger
-// a nextTick recursion warning, but that's not so bad.
-function emitReadable(stream) {
- var state = stream._readableState;
- state.needReadable = false;
- if (!state.emittedReadable) {
- debug('emitReadable', state.flowing);
- state.emittedReadable = true;
- if (state.sync)
- process.nextTick(function() {
- emitReadable_(stream);
- });
- else
- emitReadable_(stream);
+// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
+function utf8FillLast(buf) {
+ var p = this.lastTotal - this.lastNeed;
+ var r = utf8CheckExtraBytes(this, buf, p);
+ if (r !== undefined) return r;
+ if (this.lastNeed <= buf.length) {
+ buf.copy(this.lastChar, p, 0, this.lastNeed);
+ return this.lastChar.toString(this.encoding, 0, this.lastTotal);
}
+ buf.copy(this.lastChar, p, 0, buf.length);
+ this.lastNeed -= buf.length;
}
-function emitReadable_(stream) {
- debug('emit readable');
- stream.emit('readable');
- flow(stream);
+// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
+// partial character, the character's bytes are buffered until the required
+// number of bytes are available.
+function utf8Text(buf, i) {
+ var total = utf8CheckIncomplete(this, buf, i);
+ if (!this.lastNeed) return buf.toString('utf8', i);
+ this.lastTotal = total;
+ var end = buf.length - (total - this.lastNeed);
+ buf.copy(this.lastChar, 0, end);
+ return buf.toString('utf8', i, end);
}
+// For UTF-8, a replacement character for each buffered byte of a (partial)
+// character needs to be added to the output.
+function utf8End(buf) {
+ var r = buf && buf.length ? this.write(buf) : '';
+ if (this.lastNeed) return r + '\ufffd'.repeat(this.lastTotal - this.lastNeed);
+ return r;
+}
-// at this point, the user has presumably seen the 'readable' event,
-// and called read() to consume some data. that may have triggered
-// in turn another _read(n) call, in which case reading = true if
-// it's in progress.
-// However, if we're not ended, or reading, and the length < hwm,
-// then go ahead and try to read some more preemptively.
-function maybeReadMore(stream, state) {
- if (!state.readingMore) {
- state.readingMore = true;
- process.nextTick(function() {
- maybeReadMore_(stream, state);
- });
+// UTF-16LE typically needs two bytes per character, but even if we have an even
+// number of bytes available, we need to check if we end on a leading/high
+// surrogate. In that case, we need to wait for the next two bytes in order to
+// decode the last character properly.
+function utf16Text(buf, i) {
+ if ((buf.length - i) % 2 === 0) {
+ var r = buf.toString('utf16le', i);
+ if (r) {
+ var c = r.charCodeAt(r.length - 1);
+ if (c >= 0xD800 && c <= 0xDBFF) {
+ this.lastNeed = 2;
+ this.lastTotal = 4;
+ this.lastChar[0] = buf[buf.length - 2];
+ this.lastChar[1] = buf[buf.length - 1];
+ return r.slice(0, -1);
+ }
+ }
+ return r;
}
+ this.lastNeed = 1;
+ this.lastTotal = 2;
+ this.lastChar[0] = buf[buf.length - 1];
+ return buf.toString('utf16le', i, buf.length - 1);
}
-function maybeReadMore_(stream, state) {
- var len = state.length;
- while (!state.reading && !state.flowing && !state.ended &&
- state.length < state.highWaterMark) {
- debug('maybeReadMore read 0');
- stream.read(0);
- if (len === state.length)
- // didn't get any data, stop spinning.
- break;
- else
- len = state.length;
+// For UTF-16LE we do not explicitly append special replacement characters if we
+// end on a partial character, we simply let v8 handle that.
+function utf16End(buf) {
+ var r = buf && buf.length ? this.write(buf) : '';
+ if (this.lastNeed) {
+ var end = this.lastTotal - this.lastNeed;
+ return r + this.lastChar.toString('utf16le', 0, end);
}
- state.readingMore = false;
+ return r;
}
-// abstract method. to be overridden in specific implementation classes.
-// call cb(er, data) where data is <= n in length.
-// for virtual (non-string, non-buffer) streams, "length" is somewhat
-// arbitrary, and perhaps not very meaningful.
-Readable.prototype._read = function(n) {
- this.emit('error', new Error('not implemented'));
-};
+function base64Text(buf, i) {
+ var n = (buf.length - i) % 3;
+ if (n === 0) return buf.toString('base64', i);
+ this.lastNeed = 3 - n;
+ this.lastTotal = 3;
+ if (n === 1) {
+ this.lastChar[0] = buf[buf.length - 1];
+ } else {
+ this.lastChar[0] = buf[buf.length - 2];
+ this.lastChar[1] = buf[buf.length - 1];
+ }
+ return buf.toString('base64', i, buf.length - n);
+}
-Readable.prototype.pipe = function(dest, pipeOpts) {
- var src = this;
- var state = this._readableState;
+function base64End(buf) {
+ var r = buf && buf.length ? this.write(buf) : '';
+ if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
+ return r;
+}
- switch (state.pipesCount) {
- case 0:
- state.pipes = dest;
- break;
- case 1:
- state.pipes = [state.pipes, dest];
- break;
- default:
- state.pipes.push(dest);
- break;
- }
- state.pipesCount += 1;
- debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
+// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
+function simpleWrite(buf) {
+ return buf.toString(this.encoding);
+}
- var doEnd = (!pipeOpts || pipeOpts.end !== false) &&
- dest !== process.stdout &&
- dest !== process.stderr;
+function simpleEnd(buf) {
+ return buf && buf.length ? this.write(buf) : '';
+}
+},{"safe-buffer":26}],29:[function(require,module,exports){
+(function (global){
- var endFn = doEnd ? onend : cleanup;
- if (state.endEmitted)
- process.nextTick(endFn);
- else
- src.once('end', endFn);
+/**
+ * Module exports.
+ */
- dest.on('unpipe', onunpipe);
- function onunpipe(readable) {
- debug('onunpipe');
- if (readable === src) {
- cleanup();
- }
+module.exports = deprecate;
+
+/**
+ * Mark that a method should not be used.
+ * Returns a modified function which warns once by default.
+ *
+ * If `localStorage.noDeprecation = true` is set, then it is a no-op.
+ *
+ * If `localStorage.throwDeprecation = true` is set, then deprecated functions
+ * will throw an Error when invoked.
+ *
+ * If `localStorage.traceDeprecation = true` is set, then deprecated functions
+ * will invoke `console.trace()` instead of `console.error()`.
+ *
+ * @param {Function} fn - the function to deprecate
+ * @param {String} msg - the string to print to the console when `fn` is invoked
+ * @returns {Function} a new "deprecated" version of `fn`
+ * @api public
+ */
+
+function deprecate (fn, msg) {
+ if (config('noDeprecation')) {
+ return fn;
}
- function onend() {
- debug('onend');
- dest.end();
+ var warned = false;
+ function deprecated() {
+ if (!warned) {
+ if (config('throwDeprecation')) {
+ throw new Error(msg);
+ } else if (config('traceDeprecation')) {
+ console.trace(msg);
+ } else {
+ console.warn(msg);
+ }
+ warned = true;
+ }
+ return fn.apply(this, arguments);
}
- // when the dest drains, it reduces the awaitDrain counter
- // on the source. This would be more elegant with a .once()
- // handler in flow(), but adding and removing repeatedly is
- // too slow.
- var ondrain = pipeOnDrain(src);
- dest.on('drain', ondrain);
+ return deprecated;
+}
- function cleanup() {
- debug('cleanup');
- // cleanup event handlers once the pipe is broken
- dest.removeListener('close', onclose);
- dest.removeListener('finish', onfinish);
- dest.removeListener('drain', ondrain);
- dest.removeListener('error', onerror);
- dest.removeListener('unpipe', onunpipe);
- src.removeListener('end', onend);
- src.removeListener('end', cleanup);
- src.removeListener('data', ondata);
+/**
+ * Checks `localStorage` for boolean values for the given `name`.
+ *
+ * @param {String} name
+ * @returns {Boolean}
+ * @api private
+ */
- // if the reader is waiting for a drain event from this
- // specific writer, then it would cause it to never start
- // flowing again.
- // So, if this is awaiting a drain, then we just call it now.
- // If we don't know, then assume that we are waiting for one.
- if (state.awaitDrain &&
- (!dest._writableState || dest._writableState.needDrain))
- ondrain();
+function config (name) {
+ // accessing global.localStorage can trigger a DOMException in sandboxed iframes
+ try {
+ if (!global.localStorage) return false;
+ } catch (_) {
+ return false;
}
+ var val = global.localStorage[name];
+ if (null == val) return false;
+ return String(val).toLowerCase() === 'true';
+}
- 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();
+}).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(' ');
}
- // 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];
+ 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);
+ };
+ }
- // Both close and finish should trigger unpipe, but only once.
- function onclose() {
- dest.removeListener('finish', onfinish);
- unpipe();
+ if (process.noDeprecation === true) {
+ return fn;
}
- dest.once('close', onclose);
- function onfinish() {
- debug('onfinish');
- dest.removeListener('close', onclose);
- unpipe();
+
+ 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);
}
- dest.once('finish', onfinish);
- function unpipe() {
- debug('unpipe');
- src.unpipe(dest);
- }
+ return deprecated;
+};
- // tell the dest that it's being piped to
- dest.emit('pipe', src);
- // start the flow if it hasn't been started already.
- if (!state.flowing) {
- debug('pipe resume');
- src.resume();
+var 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 dest;
+ return debugs[set];
};
-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);
- }
+
+/**
+ * Echos the value of a value. Trys to print the value out
+ * in the best way possible given the different types.
+ *
+ * @param {Object} obj The object to print out.
+ * @param {Object} opts Optional options object that alters the output.
+ */
+/* legacy: obj, showHidden, depth, colors*/
+function inspect(obj, opts) {
+ // default options
+ var ctx = {
+ seen: [],
+ stylize: stylizeNoColor
};
+ // legacy...
+ if (arguments.length >= 3) ctx.depth = arguments[2];
+ if (arguments.length >= 4) ctx.colors = arguments[3];
+ if (isBoolean(opts)) {
+ // legacy...
+ ctx.showHidden = opts;
+ } else if (opts) {
+ // got an "options" object
+ exports._extend(ctx, opts);
+ }
+ // set default options
+ if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
+ if (isUndefined(ctx.depth)) ctx.depth = 2;
+ if (isUndefined(ctx.colors)) ctx.colors = false;
+ if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
+ if (ctx.colors) ctx.stylize = stylizeWithColor;
+ return formatValue(ctx, obj, ctx.depth);
}
+exports.inspect = inspect;
-Readable.prototype.unpipe = function(dest) {
- var state = this._readableState;
+// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
+inspect.colors = {
+ 'bold' : [1, 22],
+ 'italic' : [3, 23],
+ 'underline' : [4, 24],
+ 'inverse' : [7, 27],
+ 'white' : [37, 39],
+ 'grey' : [90, 39],
+ 'black' : [30, 39],
+ 'blue' : [34, 39],
+ 'cyan' : [36, 39],
+ 'green' : [32, 39],
+ 'magenta' : [35, 39],
+ 'red' : [31, 39],
+ 'yellow' : [33, 39]
+};
- // if we're not piping anywhere, then do nothing.
- if (state.pipesCount === 0)
- return this;
+// Don't use 'blue' not visible on cmd.exe
+inspect.styles = {
+ 'special': 'cyan',
+ 'number': 'yellow',
+ 'boolean': 'yellow',
+ 'undefined': 'grey',
+ 'null': 'bold',
+ 'string': 'green',
+ 'date': 'magenta',
+ // "name": intentionally not styling
+ 'regexp': 'red'
+};
- // just one destination. most common case.
- if (state.pipesCount === 1) {
- // passed in one, but it's not the right one.
- if (dest && dest !== state.pipes)
- return this;
- if (!dest)
- dest = state.pipes;
+function stylizeWithColor(str, styleType) {
+ var style = inspect.styles[styleType];
- // got a match.
- state.pipes = null;
- state.pipesCount = 0;
- state.flowing = false;
- if (dest)
- dest.emit('unpipe', this);
- return this;
+ if (style) {
+ return '\u001b[' + inspect.colors[style][0] + 'm' + str +
+ '\u001b[' + inspect.colors[style][1] + 'm';
+ } else {
+ return str;
}
+}
- // slow case. multiple pipe destinations.
-
- if (!dest) {
- // remove all.
- var dests = state.pipes;
- var len = state.pipesCount;
- state.pipes = null;
- state.pipesCount = 0;
- state.flowing = false;
-
- for (var i = 0; i < len; i++)
- dests[i].emit('unpipe', this);
- return this;
- }
- // try to find the right one.
- var i = indexOf(state.pipes, dest);
- if (i === -1)
- return this;
+function stylizeNoColor(str, styleType) {
+ return str;
+}
- state.pipes.splice(i, 1);
- state.pipesCount -= 1;
- if (state.pipesCount === 1)
- state.pipes = state.pipes[0];
- dest.emit('unpipe', this);
+function arrayToHash(array) {
+ var hash = {};
- return this;
-};
+ array.forEach(function(val, idx) {
+ hash[val] = true;
+ });
-// 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);
+ return hash;
+}
- // 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 (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);
- }
+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;
}
- 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);
- }
- resume(this, state);
+ // Primitive types cannot have properties
+ var primitive = formatPrimitive(ctx, value);
+ if (primitive) {
+ return primitive;
}
- return this;
-};
-function resume(stream, state) {
- if (!state.resumeScheduled) {
- state.resumeScheduled = true;
- process.nextTick(function() {
- resume_(stream, state);
- });
- }
-}
+ // Look up the keys of the object.
+ var keys = Object.keys(value);
+ var visibleKeys = arrayToHash(keys);
-function resume_(stream, state) {
- state.resumeScheduled = false;
- stream.emit('resume');
- flow(stream);
- if (state.flowing && !state.reading)
- stream.read(0);
-}
+ if (ctx.showHidden) {
+ keys = Object.getOwnPropertyNames(value);
+ }
-Readable.prototype.pause = function() {
- debug('call pause flowing=%j', this._readableState.flowing);
- if (false !== this._readableState.flowing) {
- debug('pause');
- this._readableState.flowing = false;
- this.emit('pause');
+ // 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);
}
- 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);
+ // 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);
+ }
}
-}
-// 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 base = '', array = false, braces = ['{', '}'];
- var self = this;
- stream.on('end', function() {
- debug('wrapped end');
- if (state.decoder && !state.ended) {
- var chunk = state.decoder.end();
- if (chunk && chunk.length)
- self.push(chunk);
- }
+ // Make Array say that they are Array
+ if (isArray(value)) {
+ array = true;
+ braces = ['[', ']'];
+ }
- self.push(null);
- });
+ // Make functions say that they are functions
+ if (isFunction(value)) {
+ var n = value.name ? ': ' + value.name : '';
+ base = ' [Function' + n + ']';
+ }
- stream.on('data', function(chunk) {
- debug('wrapped data');
- if (state.decoder)
- chunk = state.decoder.write(chunk);
- if (!chunk || !state.objectMode && !chunk.length)
- return;
+ // Make RegExps say that they are RegExps
+ if (isRegExp(value)) {
+ base = ' ' + RegExp.prototype.toString.call(value);
+ }
- var ret = self.push(chunk);
- if (!ret) {
- paused = true;
- stream.pause();
- }
- });
+ // Make dates with properties first say the date
+ if (isDate(value)) {
+ base = ' ' + Date.prototype.toUTCString.call(value);
+ }
- // 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);
- }
+ // Make error with message first say the error
+ if (isError(value)) {
+ base = ' ' + formatError(value);
}
- // proxy certain important events.
- var events = ['error', 'close', 'destroy', 'pause', 'resume'];
- forEach(events, function(ev) {
- stream.on(ev, self.emit.bind(self, ev));
- });
+ if (keys.length === 0 && (!array || value.length == 0)) {
+ return braces[0] + base + braces[1];
+ }
- // 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 (recurseTimes < 0) {
+ if (isRegExp(value)) {
+ return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
+ } else {
+ return ctx.stylize('[Object]', 'special');
}
- };
-
- return self;
-};
+ }
+ 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);
+ });
+ }
-// exposed for testing purposes only.
-Readable._fromList = fromList;
+ ctx.seen.pop();
-// 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;
+ return reduceToSingleString(output, base, braces);
+}
- // nothing in the list, definitely empty.
- if (list.length === 0)
- return null;
- 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;
- } 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);
+function formatPrimitive(ctx, value) {
+ if (isUndefined(value))
+ return ctx.stylize('undefined', 'undefined');
+ if (isString(value)) {
+ var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
+ .replace(/'/g, "\\'")
+ .replace(/\\"/g, '"') + '\'';
+ return ctx.stylize(simple, 'string');
+ }
+ if (isNumber(value))
+ return ctx.stylize('' + value, 'number');
+ if (isBoolean(value))
+ return ctx.stylize('' + value, 'boolean');
+ // For some reason typeof null is "object", so special case here.
+ if (isNull(value))
+ return ctx.stylize('null', 'null');
+}
- var 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);
- if (stringMode)
- ret += buf.slice(0, cpy);
- else
- buf.copy(ret, c, 0, cpy);
+function formatError(value) {
+ return '[' + Error.prototype.toString.call(value) + ']';
+}
- if (cpy < buf.length)
- list[0] = buf.slice(cpy);
- else
- list.shift();
- c += cpy;
- }
+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('');
}
}
-
- return ret;
+ keys.forEach(function(key) {
+ if (!key.match(/^\d+$/)) {
+ output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
+ key, true));
+ }
+ });
+ return output;
}
-function endReadable(stream) {
- var state = stream._readableState;
-
- // If we get here before consuming all the bytes, then that is a
- // bug in node. Should never happen.
- if (state.length > 0)
- throw new Error('endReadable called on non-empty stream');
- if (!state.endEmitted) {
- state.ended = true;
- process.nextTick(function() {
- // Check that we didn't get one last unshift.
- if (!state.endEmitted && state.length === 0) {
- state.endEmitted = true;
- stream.readable = false;
- stream.emit('end');
+function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
+ var name, str, desc;
+ desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
+ if (desc.get) {
+ if (desc.set) {
+ str = ctx.stylize('[Getter/Setter]', 'special');
+ } else {
+ str = ctx.stylize('[Getter]', 'special');
+ }
+ } else {
+ if (desc.set) {
+ str = ctx.stylize('[Setter]', 'special');
+ }
+ }
+ if (!hasOwnProperty(visibleKeys, key)) {
+ name = '[' + key + ']';
+ }
+ if (!str) {
+ if (ctx.seen.indexOf(desc.value) < 0) {
+ if (isNull(recurseTimes)) {
+ str = formatValue(ctx, desc.value, null);
+ } else {
+ str = formatValue(ctx, desc.value, recurseTimes - 1);
}
- });
+ if (str.indexOf('\n') > -1) {
+ if (array) {
+ str = str.split('\n').map(function(line) {
+ return ' ' + line;
+ }).join('\n').substr(2);
+ } else {
+ str = '\n' + str.split('\n').map(function(line) {
+ return ' ' + line;
+ }).join('\n');
+ }
+ }
+ } else {
+ str = ctx.stylize('[Circular]', 'special');
+ }
}
-}
-
-function forEach (xs, f) {
- for (var i = 0, l = xs.length; i < l; i++) {
- f(xs[i], i);
+ if (isUndefined(name)) {
+ if (array && key.match(/^\d+$/)) {
+ 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 indexOf (xs, x) {
- for (var i = 0, l = xs.length; i < l; i++) {
- if (xs[i] === x) return i;
- }
- return -1;
+ return name + ': ' + str;
}
-}).call(this,require('_process'))
-},{"./_stream_duplex":16,"_process":14,"buffer":7,"core-util-is":21,"events":11,"inherits":12,"isarray":13,"stream":26,"string_decoder/":27,"util":6}],19:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// a transform stream is a readable/writable stream where you do
-// something with the data. Sometimes it's called a "filter",
-// but that's not a great name for it, since that implies a thing where
-// some bits pass through, and others are simply ignored. (That would
-// be a valid example of a transform, of course.)
-//
-// While the output is causally related to the input, it's not a
-// necessarily symmetric or synchronous transformation. For example,
-// a zlib stream might take multiple plain-text writes(), and then
-// emit a single compressed chunk some time in the future.
-//
-// Here's how this works:
-//
-// The Transform stream has all the aspects of the readable and writable
-// stream classes. When you write(chunk), that calls _write(chunk,cb)
-// internally, and returns false if there's a lot of pending writes
-// buffered up. When you call read(), that calls _read(n) until
-// there's enough pending readable data buffered up.
-//
-// In a transform stream, the written data is placed in a buffer. When
-// _read(n) is called, it transforms the queued up data, calling the
-// buffered _write cb's as it consumes chunks. If consuming a single
-// written chunk would result in multiple output chunks, then the first
-// outputted bit calls the readcb, and subsequent chunks just go into
-// the read buffer, and will cause it to emit 'readable' if necessary.
-//
-// This way, back-pressure is actually determined by the reading side,
-// since _read has to be called to start processing a new chunk. However,
-// a pathological inflate type of transform can cause excessive buffering
-// here. For example, imagine a stream where every byte of input is
-// interpreted as an integer from 0-255, and then results in that many
-// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in
-// 1kb of data being output. In this case, you could write a very small
-// amount of input, and end up with a very large amount of output. In
-// such a pathological inflating mechanism, there'd be no way to tell
-// the system to stop doing the transform. A single 4MB write could
-// cause the system to run out of memory.
-//
-// However, even in such a pathological case, only a single written chunk
-// would be consumed, and then the rest would wait (un-transformed) until
-// the results of the previous transformed chunk were consumed.
+function 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);
-module.exports = Transform;
+ if (length > 60) {
+ return braces[0] +
+ (base === '' ? '' : base + '\n ') +
+ ' ' +
+ output.join(',\n ') +
+ ' ' +
+ braces[1];
+ }
-var Duplex = require('./_stream_duplex');
+ return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
+}
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
-util.inherits(Transform, Duplex);
+// 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 TransformState(options, stream) {
- this.afterTransform = function(er, data) {
- return afterTransform(stream, er, data);
- };
+function isNull(arg) {
+ return arg === null;
+}
+exports.isNull = isNull;
- this.needTransform = false;
- this.transforming = false;
- this.writecb = null;
- this.writechunk = null;
+function isNullOrUndefined(arg) {
+ return arg == null;
}
+exports.isNullOrUndefined = isNullOrUndefined;
-function afterTransform(stream, er, data) {
- var ts = stream._transformState;
- ts.transforming = false;
+function isNumber(arg) {
+ return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
- var cb = ts.writecb;
+function isString(arg) {
+ return typeof arg === 'string';
+}
+exports.isString = isString;
- if (!cb)
- return stream.emit('error', new Error('no writecb in Transform class'));
+function isSymbol(arg) {
+ return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
- ts.writechunk = null;
- ts.writecb = null;
+function isUndefined(arg) {
+ return arg === void 0;
+}
+exports.isUndefined = isUndefined;
- if (!util.isNullOrUndefined(data))
- stream.push(data);
+function isRegExp(re) {
+ return isObject(re) && objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
- if (cb)
- cb(er);
+function isObject(arg) {
+ return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
- var rs = stream._readableState;
- rs.reading = false;
- if (rs.needReadable || rs.length < rs.highWaterMark) {
- stream._read(rs.highWaterMark);
- }
+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 Transform(options) {
- if (!(this instanceof Transform))
- return new Transform(options);
+function isFunction(arg) {
+ return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
- Duplex.call(this, options);
+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;
- this._transformState = new TransformState(options, this);
+exports.isBuffer = require('./support/isBuffer');
- // when the writable side finishes, then flush out anything remaining.
- var stream = this;
+function objectToString(o) {
+ return Object.prototype.toString.call(o);
+}
- // start out asking for a readable event once data is transformed.
- this._readableState.needReadable = true;
- // we have implemented the _read method, and done the other things
- // that Readable wants before the first _read call, so unset the
- // sync guard flag.
- this._readableState.sync = false;
+function pad(n) {
+ return n < 10 ? '0' + n.toString(10) : n.toString(10);
+}
- this.once('prefinish', function() {
- if (util.isFunction(this._flush))
- this._flush(function(er) {
- done(stream, er);
- });
- else
- done(stream);
- });
+
+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(' ');
}
-Transform.prototype.push = function(chunk, encoding) {
- this._transformState.needTransform = false;
- return Duplex.prototype.push.call(this, chunk, encoding);
-};
-// This is the part where you do stuff!
-// override this function in implementation classes.
-// 'chunk' is an input chunk.
-//
-// Call `push(newChunk)` to pass along transformed output
-// to the readable side. You may call 'push' zero or more times.
-//
-// Call `cb(err)` when you are done with this chunk. If you pass
-// an error, then that'll put the hurt on the whole operation. If you
-// never call cb(), then you'll never get another chunk.
-Transform.prototype._transform = function(chunk, encoding, cb) {
- throw new Error('not implemented');
+// 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));
};
-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);
+
+/**
+ * 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;
};
-// 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;
+function hasOwnProperty(obj, prop) {
+ return Object.prototype.hasOwnProperty.call(obj, prop);
+}
- 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;
+}).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 ''
-function done(stream, er) {
- if (er)
- return stream.emit('error', er);
+ var digits = [0]
+ for (var i = 0; i < source.length; ++i) {
+ for (var j = 0, carry = source[i]; j < digits.length; ++j) {
+ carry += digits[j] << 8
+ digits[j] = carry % BASE
+ carry = (carry / BASE) | 0
+ }
- // if 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;
+ while (carry > 0) {
+ digits.push(carry % BASE)
+ carry = (carry / BASE) | 0
+ }
+ }
- if (ws.length)
- throw new Error('calling transform done when ws.length != 0');
+ var string = ''
- if (ts.transforming)
- throw new Error('calling transform done when still transforming');
+ // 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 stream.push(null);
-}
+ return string
+ }
-},{"./_stream_duplex":16,"core-util-is":21,"inherits":12}],20:[function(require,module,exports){
-(function (process){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+ function decodeUnsafe (string) {
+ if (string.length === 0) return Buffer.allocUnsafe(0)
-// A bit simpler than readable streams.
-// Implement an async ._write(chunk, cb), and it'll handle all
-// the drain event emission and buffering.
+ var bytes = [0]
+ for (var i = 0; i < string.length; i++) {
+ var value = ALPHABET_MAP[string[i]]
+ if (value === undefined) return
-module.exports = Writable;
+ for (var j = 0, carry = value; j < bytes.length; ++j) {
+ carry += bytes[j] * BASE
+ bytes[j] = carry & 0xff
+ carry >>= 8
+ }
-/*<replacement>*/
-var Buffer = require('buffer').Buffer;
-/*</replacement>*/
+ while (carry > 0) {
+ bytes.push(carry & 0xff)
+ carry >>= 8
+ }
+ }
-Writable.WritableState = WritableState;
+ // deal with leading zeros
+ for (var k = 0; string[k] === LEADER && k < string.length - 1; ++k) {
+ bytes.push(0)
+ }
+ return Buffer.from(bytes.reverse())
+ }
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+ function decode (string) {
+ var buffer = decodeUnsafe(string)
+ if (buffer) return buffer
+
+ throw new Error('Non-base' + BASE + ' character')
+ }
-var Stream = require('stream');
+ return {
+ encode: encode,
+ decodeUnsafe: decodeUnsafe,
+ decode: decode
+ }
+}
-util.inherits(Writable, Stream);
+},{"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)
-function WriteReq(chunk, encoding, cb) {
- this.chunk = chunk;
- this.encoding = encoding;
- this.callback = cb;
+ 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 WritableState(options, stream) {
- var Duplex = require('./_stream_duplex');
+var proto = BigInteger.prototype
- options = options || {};
+// 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)
+}
- // 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;
+// Bits per digit
+var dbits
- // object stream flag to indicate whether or not this stream
- // contains buffers or objects.
- this.objectMode = !!options.objectMode;
+// 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.
- if (stream instanceof Duplex)
- this.objectMode = this.objectMode || !!options.writableObjectMode;
+// 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
+}
- // cast to ints.
- this.highWaterMark = ~~this.highWaterMark;
+// wtf?
+BigInteger.prototype.am = am1
+dbits = 26
- 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;
+BigInteger.prototype.DB = dbits
+BigInteger.prototype.DM = ((1 << dbits) - 1)
+var DV = BigInteger.prototype.DV = (1 << dbits)
- // 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;
+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
- // 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';
+// 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
- // 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;
+function int2char(n) {
+ return BI_RM.charAt(n)
+}
- // a flag to see when we're in the middle of a write.
- this.writing = false;
+function intAt(s, i) {
+ var c = BI_RC[s.charCodeAt(i)]
+ return (c == null) ? -1 : c
+}
- // when true all writes will be buffered until .uncork() call
- this.corked = 0;
+// (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
+}
- // 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;
+// (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
+}
- // 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;
+// return bigint initialized to value
+function nbv(i) {
+ var r = new BigInteger()
+ r.fromInt(i)
+ return r
+}
- // the callback that's passed to _write(chunk,cb)
- this.onwrite = function(er) {
- onwrite(stream, er);
- };
+// (protected) set from string and radix
+function bnpFromString(s, b) {
+ var self = this
- // the callback that the user supplies to write(chunk,encoding,cb)
- this.writecb = null;
+ 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"
+}
- // the amount that is being written when _write is called.
- this.writelen = 0;
+// (public) -this
+function bnNegate() {
+ var r = new BigInteger()
+ BigInteger.ZERO.subTo(this, r)
+ return r
+}
- this.buffer = [];
+// (public) |this|
+function bnAbs() {
+ return (this.s < 0) ? this.negate() : this
+}
- // number of pending user-supplied write callbacks
- // this must be 0 before 'finish' can be emitted
- this.pendingcb = 0;
+// (public) return + if this > a, - if this < a, 0 if equal
+function bnCompareTo(a) {
+ var r = this.s - a.s
+ if (r != 0) return r
+ var i = this.t
+ r = i - a.t
+ if (r != 0) return (this.s < 0) ? -r : r
+ while (--i >= 0)
+ if ((r = this[i] - a[i]) != 0) return r
+ return 0
+}
- // emit prefinish if the only thing we're waiting for is _write cbs
- // This is relevant for synchronous Transform streams
- this.prefinished = false;
+// 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
+}
- // True if the error was already emitted and should not be thrown again
- this.errorEmitted = false;
+// (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))
}
-function Writable(options) {
- var Duplex = require('./_stream_duplex');
+// (public) return the number of bytes in "this"
+function bnByteLength() {
+ return this.bitLength() >> 3
+}
- // 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);
+// (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
+}
- this._writableState = new WritableState(options, this);
+// (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
+}
- // legacy.
- this.writable = true;
+// (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()
+}
- Stream.call(this);
+// (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()
}
-// Otherwise people can pipe Writable streams, which is just wrong.
-Writable.prototype.pipe = function() {
- this.emit('error', new Error('Cannot pipe. Not readable.'));
-};
+// (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)
+}
-function writeAfterEnd(stream, state, cb) {
- var er = new Error('write after end');
- // TODO: defer error events consistently everywhere, not just the cb
- stream.emit('error', er);
- process.nextTick(function() {
- cb(er);
- });
+// (protected) r = this^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()
}
-// If we get something that is not a buffer, string, null, or undefined,
-// and we're not in objectMode, then that's an error.
-// Otherwise stream chunks are all considered to be of length=1, and the
-// watermarks determine how many objects to keep in the buffer, rather than
-// how many bytes or characters.
-function validChunk(stream, state, chunk, cb) {
- var valid = true;
- if (!util.isBuffer(chunk) &&
- !util.isString(chunk) &&
- !util.isNullOrUndefined(chunk) &&
- !state.objectMode) {
- var er = new TypeError('Invalid non-string/buffer chunk');
- stream.emit('error', er);
- process.nextTick(function() {
- cb(er);
- });
- valid = false;
+// (protected) 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
}
- return valid;
+ 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)
}
-Writable.prototype.write = function(chunk, encoding, cb) {
- var state = this._writableState;
- var ret = false;
+// (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
+}
- if (util.isFunction(encoding)) {
- cb = encoding;
- encoding = null;
- }
+// Modular reduction using "classic" algorithm
+function Classic(m) {
+ this.m = m
+}
- if (util.isBuffer(chunk))
- encoding = 'buffer';
- else if (!encoding)
- encoding = state.defaultEncoding;
+function cConvert(x) {
+ if (x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m)
+ else return x
+}
- if (!util.isFunction(cb))
- cb = function() {};
+function cRevert(x) {
+ return x
+}
- if (state.ended)
- writeAfterEnd(this, state, cb);
- else if (validChunk(this, state, chunk, cb)) {
- state.pendingcb++;
- ret = writeOrBuffer(this, state, chunk, encoding, cb);
- }
+function cReduce(x) {
+ x.divRemTo(this.m, null, x)
+}
- return ret;
-};
+function cMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+ this.reduce(r)
+}
-Writable.prototype.cork = function() {
- var state = this._writableState;
+function cSqrTo(x, r) {
+ x.squareTo(r)
+ this.reduce(r)
+}
- state.corked++;
-};
+Classic.prototype.convert = cConvert
+Classic.prototype.revert = cRevert
+Classic.prototype.reduce = cReduce
+Classic.prototype.mulTo = cMulTo
+Classic.prototype.sqrTo = cSqrTo
-Writable.prototype.uncork = function() {
- var state = this._writableState;
+// (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
+}
- if (state.corked) {
- state.corked--;
+// 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 (!state.writing &&
- !state.corked &&
- !state.finished &&
- !state.bufferProcessing &&
- state.buffer.length)
- clearBuffer(this, state);
- }
-};
+// xR mod m
+function montConvert(x) {
+ var r = new BigInteger()
+ x.abs()
+ .dlShiftTo(this.m.t, r)
+ r.divRemTo(this.m, null, r)
+ if (x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r, r)
+ return r
+}
-function decodeChunk(state, chunk, encoding) {
- if (!state.objectMode &&
- state.decodeStrings !== false &&
- util.isString(chunk)) {
- chunk = new Buffer(chunk, encoding);
+// 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]++
+ }
}
- return chunk;
+ x.clamp()
+ x.drShiftTo(this.m.t, x)
+ if (x.compareTo(this.m) >= 0) x.subTo(this.m, x)
}
-// 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;
+// r = "x^2/R mod m"; x != r
+function montSqrTo(x, r) {
+ x.squareTo(r)
+ this.reduce(r)
+}
- state.length += len;
+// r = "xy/R mod m"; x,y != r
+function montMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+ this.reduce(r)
+}
- var ret = state.length < state.highWaterMark;
- // we must ensure that previous needDrain will not be reset to false.
- if (!ret)
- state.needDrain = true;
+Montgomery.prototype.convert = montConvert
+Montgomery.prototype.revert = montRevert
+Montgomery.prototype.reduce = montReduce
+Montgomery.prototype.mulTo = montMulTo
+Montgomery.prototype.sqrTo = montSqrTo
- if (state.writing || state.corked)
- state.buffer.push(new WriteReq(chunk, encoding, cb));
- else
- doWrite(stream, state, false, len, chunk, encoding, cb);
+// (protected) true iff this is even
+function bnpIsEven() {
+ return ((this.t > 0) ? (this[0] & 1) : this.s) == 0
+}
- return ret;
+// (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)
}
-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;
+// (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)
}
-function onwriteError(stream, state, sync, er, cb) {
- if (sync)
- process.nextTick(function() {
- state.pendingcb--;
- cb(er);
- });
- else {
- state.pendingcb--;
- cb(er);
- }
+// 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
- stream._writableState.errorEmitted = true;
- stream.emit('error', er);
+// 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
}
-function onwriteStateUpdate(state) {
- state.writing = false;
- state.writecb = null;
- state.length -= state.writelen;
- state.writelen = 0;
+// (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
}
-function onwrite(stream, er) {
- var state = stream._writableState;
- var sync = state.sync;
- var cb = state.writecb;
+// (protected) return x s.t. r^x < DV
+function bnpChunkSize(r) {
+ return Math.floor(Math.LN2 * this.DB / Math.log(r))
+}
- onwriteStateUpdate(state);
+// (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
+}
- 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);
+// (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
+}
- if (!finished &&
- !state.corked &&
- !state.bufferProcessing &&
- state.buffer.length) {
- clearBuffer(stream, state);
+// (protected) convert from radix string
+function bnpFromRadix(s, b) {
+ var self = this
+ self.fromInt(0)
+ if (b == null) b = 10
+ var cs = self.chunkSize(b)
+ var d = Math.pow(b, cs),
+ mi = false,
+ j = 0,
+ w = 0
+ for (var i = 0; i < s.length; ++i) {
+ var x = intAt(s, i)
+ if (x < 0) {
+ if (s.charAt(i) == "-" && self.signum() == 0) mi = true
+ continue
}
-
- if (sync) {
- process.nextTick(function() {
- afterWrite(stream, state, finished, cb);
- });
- } else {
- afterWrite(stream, state, finished, cb);
+ w = b * w + x
+ if (++j >= cs) {
+ self.dMultiply(d)
+ self.dAddOffset(w, 0)
+ j = 0
+ w = 0
}
}
-}
-
-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 (j > 0) {
+ self.dMultiply(Math.pow(b, j))
+ self.dAddOffset(w, 0)
}
+ if (mi) BigInteger.ZERO.subTo(self, self)
}
-
-// if there's something in the buffer waiting, then process it
-function clearBuffer(stream, state) {
- state.bufferProcessing = true;
-
- 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);
-
- // 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);
+// (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)
}
- });
-
- // 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;
-
- doWrite(stream, state, false, len, chunk, encoding, cb);
+ // 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 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;
+// (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 (c < state.buffer.length)
- state.buffer = state.buffer.slice(c);
- else
- state.buffer.length = 0;
}
-
- state.bufferProcessing = false;
+ return r
}
-Writable.prototype._write = function(chunk, encoding, cb) {
- cb(new Error('not implemented'));
-
-};
+function bnEquals(a) {
+ return (this.compareTo(a) == 0)
+}
-Writable.prototype._writev = null;
+function bnMin(a) {
+ return (this.compareTo(a) < 0) ? this : a
+}
-Writable.prototype.end = function(chunk, encoding, cb) {
- var state = this._writableState;
+function bnMax(a) {
+ return (this.compareTo(a) > 0) ? this : a
+}
- if (util.isFunction(chunk)) {
- cb = chunk;
- chunk = null;
- encoding = null;
- } else if (util.isFunction(encoding)) {
- cb = encoding;
- encoding = null;
+// (protected) r = this op a (bitwise)
+function bnpBitwiseTo(a, op, r) {
+ var self = this
+ var i, f, m = Math.min(a.t, self.t)
+ for (i = 0; i < m; ++i) r[i] = op(self[i], a[i])
+ if (a.t < self.t) {
+ f = a.s & self.DM
+ for (i = m; i < self.t; ++i) r[i] = op(self[i], f)
+ r.t = self.t
+ } else {
+ f = self.s & self.DM
+ for (i = m; i < a.t; ++i) r[i] = op(f, a[i])
+ r.t = a.t
}
+ r.s = op(self.s, a.s)
+ r.clamp()
+}
- if (!util.isNullOrUndefined(chunk))
- this.write(chunk, encoding);
-
- // .end() fully uncorks
- if (state.corked) {
- state.corked = 1;
- this.uncork();
- }
+// (public) this & a
+function op_and(x, y) {
+ return x & y
+}
- // ignore unnecessary end() calls.
- if (!state.ending && !state.finished)
- endWritable(this, state, cb);
-};
+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 needFinish(stream, state) {
- return (state.ending &&
- state.length === 0 &&
- !state.finished &&
- !state.writing);
+function bnOr(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_or, r)
+ return r
}
-function prefinish(stream, state) {
- if (!state.prefinished) {
- state.prefinished = true;
- stream.emit('prefinish');
- }
+// (public) this ^ a
+function op_xor(x, y) {
+ return x ^ y
}
-function finishMaybe(stream, state) {
- var need = needFinish(stream, state);
- if (need) {
- if (state.pendingcb === 0) {
- prefinish(stream, state);
- state.finished = true;
- stream.emit('finish');
- } else
- prefinish(stream, state);
- }
- return need;
+function bnXor(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_xor, r)
+ return r
}
-function endWritable(stream, state, cb) {
- state.ending = true;
- finishMaybe(stream, state);
- if (cb) {
- if (state.finished)
- process.nextTick(cb);
- else
- stream.once('finish', cb);
- }
- state.ended = true;
+// (public) this & ~a
+function op_andnot(x, y) {
+ return x & ~y
}
-}).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.
+function bnAndNot(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_andnot, r)
+ return r
+}
-// 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);
+// (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
}
-exports.isArray = isArray;
-function isBoolean(arg) {
- return typeof arg === 'boolean';
+// (public) this << n
+function bnShiftLeft(n) {
+ var r = new BigInteger()
+ if (n < 0) this.rShiftTo(-n, r)
+ else this.lShiftTo(n, r)
+ return r
}
-exports.isBoolean = isBoolean;
-function isNull(arg) {
- return arg === null;
+// (public) this >> n
+function bnShiftRight(n) {
+ var r = new BigInteger()
+ if (n < 0) this.lShiftTo(-n, r)
+ else this.rShiftTo(n, r)
+ return r
}
-exports.isNull = isNull;
-function isNullOrUndefined(arg) {
- return arg == null;
+// 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
}
-exports.isNullOrUndefined = isNullOrUndefined;
-function isNumber(arg) {
- return typeof arg === 'number';
+// (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
}
-exports.isNumber = isNumber;
-function isString(arg) {
- return typeof arg === 'string';
+// return number of 1 bits in x
+function cbit(x) {
+ var r = 0
+ while (x != 0) {
+ x &= x - 1
+ ++r
+ }
+ return r
}
-exports.isString = isString;
-function isSymbol(arg) {
- return typeof arg === 'symbol';
+// (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
}
-exports.isSymbol = isSymbol;
-function isUndefined(arg) {
- return arg === void 0;
+// (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)
}
-exports.isUndefined = isUndefined;
-function isRegExp(re) {
- return isObject(re) && objectToString(re) === '[object RegExp]';
+// (protected) this op (1<<n)
+function bnpChangeBit(n, op) {
+ var r = BigInteger.ONE.shiftLeft(n)
+ this.bitwiseTo(r, op, r)
+ return r
}
-exports.isRegExp = isRegExp;
-function isObject(arg) {
- return typeof arg === 'object' && arg !== null;
+// (public) this | (1<<n)
+function bnSetBit(n) {
+ return this.changeBit(n, op_or)
}
-exports.isObject = isObject;
-function isDate(d) {
- return isObject(d) && objectToString(d) === '[object Date]';
+// (public) this & ~(1<<n)
+function bnClearBit(n) {
+ return this.changeBit(n, op_andnot)
}
-exports.isDate = isDate;
-function isError(e) {
- return isObject(e) &&
- (objectToString(e) === '[object Error]' || e instanceof Error);
+// (public) this ^ (1<<n)
+function bnFlipBit(n) {
+ return this.changeBit(n, op_xor)
}
-exports.isError = isError;
-function isFunction(arg) {
- return typeof arg === 'function';
+// (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()
}
-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';
+// (public) this + a
+function bnAdd(a) {
+ var r = new BigInteger()
+ this.addTo(a, r)
+ return r
}
-exports.isPrimitive = isPrimitive;
-function isBuffer(arg) {
- return Buffer.isBuffer(arg);
+// (public) this - a
+function bnSubtract(a) {
+ var r = new BigInteger()
+ this.subTo(a, r)
+ return r
}
-exports.isBuffer = isBuffer;
-function objectToString(o) {
- return Object.prototype.toString.call(o);
+// (public) this * a
+function bnMultiply(a) {
+ var r = new BigInteger()
+ this.multiplyTo(a, r)
+ return r
}
-}).call(this,require("buffer").Buffer)
-},{"buffer":7}],22:[function(require,module,exports){
-module.exports = require("./lib/_stream_passthrough.js")
-},{"./lib/_stream_passthrough.js":17}],23:[function(require,module,exports){
-exports = module.exports = require('./lib/_stream_readable.js');
-exports.Stream = require('stream');
-exports.Readable = exports;
-exports.Writable = require('./lib/_stream_writable.js');
-exports.Duplex = require('./lib/_stream_duplex.js');
-exports.Transform = require('./lib/_stream_transform.js');
-exports.PassThrough = require('./lib/_stream_passthrough.js');
+// (public) this^2
+function bnSquare() {
+ var r = new BigInteger()
+ this.squareTo(r)
+ return r
+}
-},{"./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")
+// (public) this / a
+function bnDivide(a) {
+ var r = new BigInteger()
+ this.divRemTo(a, r, null)
+ return r
+}
-},{"./lib/_stream_transform.js":19}],25:[function(require,module,exports){
-module.exports = require("./lib/_stream_writable.js")
+// (public) this % a
+function bnRemainder(a) {
+ var r = new BigInteger()
+ this.divRemTo(a, null, r)
+ return r
+}
-},{"./lib/_stream_writable.js":20}],26:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+// (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)
+}
-module.exports = Stream;
+// (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()
+}
-var EE = require('events').EventEmitter;
-var inherits = require('inherits');
+// (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]
+ }
+}
-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');
+// A "null" reducer
+function NullExp() {}
-// Backwards-compat with node 0.4.x
-Stream.Stream = Stream;
+function nNop(x) {
+ return x
+}
+function nMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+}
+function nSqrTo(x, r) {
+ x.squareTo(r)
+}
-// old-style streams. Note that the pipe method (the only relevant
-// part of this class) is overridden in the Readable class.
+NullExp.prototype.convert = nNop
+NullExp.prototype.revert = nNop
+NullExp.prototype.mulTo = nMulTo
+NullExp.prototype.sqrTo = nSqrTo
-function Stream() {
- EE.call(this);
+// (public) this^e
+function bnPow(e) {
+ return this.exp(e, new NullExp())
}
-Stream.prototype.pipe = function(dest, options) {
- var source = this;
+// (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()
+}
- function ondata(chunk) {
- if (dest.writable) {
- if (false === dest.write(chunk) && source.pause) {
- source.pause();
- }
- }
- }
+// (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)
+}
- source.on('data', ondata);
+// 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 ondrain() {
- if (source.readable && source.resume) {
- source.resume();
- }
+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
}
+}
- dest.on('drain', ondrain);
+function barrettRevert(x) {
+ return x
+}
- // 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);
+// 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)
+}
- var didOnEnd = false;
- function onend() {
- if (didOnEnd) return;
- didOnEnd = true;
-
- dest.end();
- }
+// 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)
+}
- function onclose() {
- if (didOnEnd) return;
- didOnEnd = true;
+Barrett.prototype.convert = barrettConvert
+Barrett.prototype.revert = barrettRevert
+Barrett.prototype.reduce = barrettReduce
+Barrett.prototype.mulTo = barrettMulTo
+Barrett.prototype.sqrTo = barrettSqrTo
- if (typeof dest.destroy === 'function') dest.destroy();
- }
+// (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)
- // 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.
+ // 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
}
}
- 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);
+ 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)
+ }
- source.removeListener('end', cleanup);
- source.removeListener('close', cleanup);
+ 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)
+ }
- dest.removeListener('close', cleanup);
+ 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)
+}
- 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;
-};
+// (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
+}
-},{"events":11,"inherits":12,"readable-stream/duplex.js":15,"readable-stream/passthrough.js":22,"readable-stream/readable.js":23,"readable-stream/transform.js":24,"readable-stream/writable.js":25}],27:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+// (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
+}
-var Buffer = require('buffer').Buffer;
+// (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 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;
- }
- }
+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]
-function assertEncoding(encoding) {
- if (encoding && !isBufferEncoding(encoding)) {
- throw new Error('Unknown encoding: ' + encoding);
+// (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)
}
-// StringDecoder provides an interface for efficiently splitting a series of
-// buffers into a series of JS strings without breaking apart multi-byte
-// characters. CESU-8 is handled as part of the UTF-8 encoding.
-//
-// @TODO Handling all encodings inside a single object makes it very difficult
-// to reason about this code, so it should be split up in the future.
-// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code
-// points as used by CESU-8.
-var StringDecoder = exports.StringDecoder = function(encoding) {
- this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
- assertEncoding(encoding);
- switch (this.encoding) {
- case 'utf8':
- // CESU-8 represents each of Surrogate Pair by 3-bytes
- this.surrogateSize = 3;
- break;
- case 'ucs2':
- case 'utf16le':
- // UTF-16 represents each of Surrogate Pair by 2-bytes
- this.surrogateSize = 2;
- this.detectIncompleteChar = utf16DetectIncompleteChar;
- break;
- case 'base64':
- // Base-64 stores 3 bytes in 4 chars, and pads the remainder.
- this.surrogateSize = 3;
- this.detectIncompleteChar = base64DetectIncompleteChar;
- break;
- default:
- this.write = passThroughWrite;
- return;
+// (protected) 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
+}
- // 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;
-};
-
-
-// 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;
+// 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
- // add the new bytes to the char buffer
- buffer.copy(this.charBuffer, this.charReceived, 0, available);
- this.charReceived += available;
+// 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
- if (this.charReceived < this.charLength) {
- // still not enough chars in this buffer? wait for more ...
- return '';
- }
+// JSBN-specific extension
+proto.square = bnSquare
- // remove bytes belonging to the current character from the buffer
- buffer = buffer.slice(available, buffer.length);
+// constants
+BigInteger.ZERO = nbv(0)
+BigInteger.ONE = nbv(1)
+BigInteger.valueOf = nbv
- // get the character that was split
- charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);
+module.exports = BigInteger
- // 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;
+},{"../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')
- // if there are no more bytes in this buffer, just emit our char
- if (buffer.length === 0) {
- return charStr;
- }
- break;
+/**
+ * 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))
}
- // determine and set charLength / charReceived
- this.detectIncompleteChar(buffer);
+ return new BigInteger(byteArray)
+}
- 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;
- }
+/**
+ * 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
+}
- charStr += buffer.toString(this.encoding, 0, end);
+BigInteger.fromDERInteger = function(byteArray) {
+ return new BigInteger(byteArray)
+}
- 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);
- }
+/*
+ * 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
- // or just emit the charStr
- return charStr;
-};
+BigInteger.fromBuffer = function(buffer) {
+ // BigInteger expects a DER integer conformant byte array
+ if (buffer[0] & 0x80) {
+ var byteArray = Array.prototype.slice.call(buffer)
-// 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;
+ return new BigInteger([0].concat(byteArray))
+ }
- // 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];
+ return new BigInteger(buffer)
+}
- // See http://en.wikipedia.org/wiki/UTF-8#Description
+BigInteger.fromHex = function(hex) {
+ if (hex === '') return BigInteger.ZERO
- // 110XXXXX
- if (i == 1 && c >> 5 == 0x06) {
- this.charLength = 2;
- break;
- }
+ 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)
+}
- // 1110XXXX
- if (i <= 2 && c >> 4 == 0x0E) {
- this.charLength = 3;
- break;
- }
+BigInteger.prototype.toBuffer = function(size) {
+ var byteArray = this.toByteArrayUnsigned()
+ var zeros = []
- // 11110XXX
- if (i <= 3 && c >> 3 == 0x1E) {
- this.charLength = 4;
- break;
- }
- }
- this.charReceived = i;
-};
+ var padding = size - byteArray.length
+ while (zeros.length < padding) zeros.push(0)
-StringDecoder.prototype.end = function(buffer) {
- var res = '';
- if (buffer && buffer.length)
- res = this.write(buffer);
+ return new Buffer(zeros.concat(byteArray))
+}
- if (this.charReceived) {
- var cr = this.charReceived;
- var buf = this.charBuffer;
- var enc = this.encoding;
- res += buf.slice(0, cr).toString(enc);
- }
+BigInteger.prototype.toHex = function(size) {
+ return this.toBuffer(size).toString('hex')
+}
- return res;
-};
+}).call(this,require("buffer").Buffer)
+},{"./bigi":35,"assert":1,"buffer":4}],37:[function(require,module,exports){
+var BigInteger = require('./bigi')
-function passThroughWrite(buffer) {
- return buffer.toString(this.encoding);
-}
+//addons
+require('./convert')
-function utf16DetectIncompleteChar(buffer) {
- this.charReceived = buffer.length % 2;
- this.charLength = this.charReceived ? 2 : 0;
+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"
}
-function base64DetectIncompleteChar(buffer) {
- this.charReceived = buffer.length % 3;
- this.charLength = this.charReceived ? 3 : 0;
-}
+},{}],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
-},{"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';
-}
-},{}],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 Buffer = require('safe-buffer').Buffer
-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(' ');
- }
+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 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;
-};
+ 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
-// 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 (buffer[4] & 0x80) return false
+ if (lenR > 1 && (buffer[4] === 0x00) && !(buffer[5] & 0x80)) return false
- if (process.noDeprecation === true) {
- return fn;
- }
+ if (buffer[lenR + 6] & 0x80) return false
+ if (lenS > 1 && (buffer[lenR + 6] === 0x00) && !(buffer[lenR + 7] & 0x80)) return false
+ return true
+}
- 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);
- }
+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')
- return deprecated;
-};
+ 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')
-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];
-};
+ 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')
-/**
- * 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);
+ // non-BIP66 - extract R, S values
+ return {
+ r: buffer.slice(4, 4 + lenR),
+ s: buffer.slice(6 + lenR)
}
- // 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;
+/*
+ * 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
+}
-function stylizeWithColor(str, styleType) {
- var style = inspect.styles[styleType];
+},{"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')
- if (style) {
- return '\u001b[' + inspect.colors[style][0] + 'm' + str +
- '\u001b[' + inspect.colors[style][1] + 'm';
- } else {
- return str;
- }
-}
+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')
+ var version = payload.readUInt8(0)
+ var hash = payload.slice(1)
-function stylizeNoColor(str, styleType) {
- return str;
+ return { hash: hash, version: version }
}
+function toBase58Check (hash, version) {
+ typeforce(types.tuple(types.Hash160bit, types.UInt8), arguments)
-function arrayToHash(array) {
- var hash = {};
+ var payload = Buffer.allocUnsafe(21)
+ payload.writeUInt8(version, 0)
+ hash.copy(payload, 1)
- array.forEach(function(val, idx) {
- hash[val] = true;
- });
+ return bs58check.encode(payload)
+}
- return hash;
+function fromOutputScript (outputScript, network) {
+ network = network || networks.bitcoin
+
+ if (bscript.pubKeyHash.output.check(outputScript)) return toBase58Check(bscript.compile(outputScript).slice(3, 23), network.pubKeyHash)
+ if (bscript.scriptHash.output.check(outputScript)) return toBase58Check(bscript.compile(outputScript).slice(2, 22), network.scriptHash)
+
+ throw new Error(bscript.toASM(outputScript) + ' has no matching Address')
}
+function toOutputScript (address, network) {
+ network = network || networks.bitcoin
-function 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')
-function pad(n) {
- return n < 10 ? '0' + n.toString(10) : n.toString(10);
-}
+var BigInteger = require('bigi')
+var ECSignature = require('./ecsignature')
+var ZERO = Buffer.alloc(1, 0)
+var ONE = Buffer.alloc(1, 1)
-var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
- 'Oct', 'Nov', 'Dec'];
+var ecurve = require('ecurve')
+var secp256k1 = ecurve.getCurveByName('secp256k1')
-// 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(' ');
-}
+// 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)
-// 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));
-};
+ // Step D
+ k = createHmac('sha256', k)
+ .update(v)
+ .update(ZERO)
+ .update(x)
+ .update(hash)
+ .digest()
+ // Step E
+ v = createHmac('sha256', k).update(v).digest()
-/**
- * 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');
+ // 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()
-exports._extend = function(origin, add) {
- // Don't do anything if add isn't an object
- if (!add || !isObject(add)) return origin;
+ var T = BigInteger.fromBuffer(v)
- var keys = Object.keys(add);
- var i = keys.length;
- while (i--) {
- origin[keys[i]] = add[keys[i]];
- }
- return origin;
-};
+ // 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()
-function hasOwnProperty(obj, prop) {
- return Object.prototype.hasOwnProperty.call(obj, prop);
-}
+ v = createHmac('sha256', k).update(v).digest()
-}).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
+ // Step H1/H2a, again, ignored as tlen === qlen (256 bit)
+ // Step H2b again
+ v = createHmac('sha256', k).update(v).digest()
+ T = BigInteger.fromBuffer(v)
+ }
-var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
-var ALPHABET_MAP = {}
-for(var i = 0; i < ALPHABET.length; i++) {
- ALPHABET_MAP[ALPHABET.charAt(i)] = i
+ return T
}
-var BASE = 58
-function encode(buffer) {
- if (buffer.length === 0) return ''
+var N_OVER_TWO = secp256k1.n.shiftRight(1)
- var i, j, digits = [0]
- for (i = 0; i < buffer.length; i++) {
- for (j = 0; j < digits.length; j++) digits[j] <<= 8
+function sign (hash, d) {
+ typeforce(types.tuple(types.Hash256bit, types.BigInt), arguments)
- digits[0] += buffer[i]
+ var x = d.toBuffer(32)
+ var e = BigInteger.fromBuffer(hash)
+ var n = secp256k1.n
+ var G = secp256k1.G
- var carry = 0
- for (j = 0; j < digits.length; ++j) {
- digits[j] += carry
+ var r, s
+ deterministicGenerateK(hash, x, function (k) {
+ var Q = G.multiply(k)
- carry = (digits[j] / BASE) | 0
- digits[j] %= BASE
- }
+ if (secp256k1.isInfinity(Q)) return false
- while (carry) {
- digits.push(carry % BASE)
+ r = Q.affineX.mod(n)
+ if (r.signum() === 0) return false
- carry = (carry / BASE) | 0
- }
- }
+ s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n)
+ if (s.signum() === 0) return false
- // deal with leading zeros
- for (i = 0; buffer[i] === 0 && i < buffer.length - 1; i++) digits.push(0)
+ return true
+ })
- // convert digits to a string
- var stringOutput = ""
- for (var i = digits.length - 1; i >= 0; i--) {
- stringOutput = stringOutput + ALPHABET[digits[i]]
+ // enforce low S values, see bip62: 'low s values in signatures'
+ if (s.compareTo(N_OVER_TWO) > 0) {
+ s = n.subtract(s)
}
- return stringOutput
+
+ return new ECSignature(r, s)
}
-function decode(string) {
- if (string.length === 0) return []
+function verify (hash, signature, Q) {
+ typeforce(types.tuple(
+ types.Hash256bit,
+ types.ECSignature,
+ types.ECPoint
+ ), arguments)
- 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')
+ var n = secp256k1.n
+ var G = secp256k1.G
- for (j = 0; j < bytes.length; j++) bytes[j] *= BASE
- bytes[0] += ALPHABET_MAP[c]
+ var r = signature.r
+ var s = signature.s
- var carry = 0
- for (j = 0; j < bytes.length; ++j) {
- bytes[j] += carry
+ // 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
- carry = bytes[j] >> 8
- bytes[j] &= 0xff
- }
+ // 1.4.2 H = Hash(M), already done by the user
+ // 1.4.3 e = H
+ var e = BigInteger.fromBuffer(hash)
- while (carry) {
- bytes.push(carry & 0xff)
+ // Compute s^-1
+ var sInv = s.modInverse(n)
- carry >>= 8
- }
- }
+ // 1.4.4 Compute u1 = es^−1 mod n
+ // u2 = rs^−1 mod n
+ var u1 = e.multiply(sInv).mod(n)
+ var u2 = r.multiply(sInv).mod(n)
+
+ // 1.4.5 Compute R = (xR, yR)
+ // R = u1G + u2Q
+ var R = G.multiplyTwo(u1, Q, u2)
+
+ // 1.4.5 (cont.) Enforce R is not at infinity
+ if (secp256k1.isInfinity(R)) return false
+
+ // 1.4.6 Convert the field element R.x to an integer
+ var xR = R.affineX
- // deal with leading zeros
- for (i = 0; string[i] === '1' && i < string.length - 1; i++) bytes.push(0)
+ // 1.4.7 Set v = xR mod n
+ var v = xR.mod(n)
- return bytes.reverse()
+ // 1.4.8 If v = r, output "valid", and if v != r, output "invalid"
+ return v.equals(r)
}
module.exports = {
- encode: encode,
- decode: decode
-}
+ deterministicGenerateK: deterministicGenerateK,
+ sign: sign,
+ verify: verify,
-},{}],31:[function(require,module,exports){
-(function (Buffer){
-'use strict'
+ // TODO: remove
+ __curve: secp256k1
+}
-var base58 = require('bs58')
-var createHash = require('create-hash')
+},{"./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')
-// SHA256(SHA256(buffer))
-function sha256x2 (buffer) {
- buffer = createHash('sha256').update(buffer).digest()
- return createHash('sha256').update(buffer).digest()
-}
+var NETWORKS = require('./networks')
+var BigInteger = require('bigi')
-// Encode a buffer as a base58-check encoded string
-function encode (payload) {
- var checksum = sha256x2(payload).slice(0, 4)
+var ecurve = require('ecurve')
+var secp256k1 = ecdsa.__curve
- return base58.encode(Buffer.concat([
- payload,
- checksum
- ]))
-}
+function ECPair (d, Q, options) {
+ if (options) {
+ typeforce({
+ compressed: types.maybe(types.Boolean),
+ network: types.maybe(types.Network)
+ }, options)
+ }
-// Decode a base58-check encoded string to a buffer
-function decode (string) {
- var buffer = new Buffer(base58.decode(string))
+ options = options || {}
- var payload = buffer.slice(0, -4)
- var checksum = buffer.slice(-4)
- var newChecksum = sha256x2(payload).slice(0, 4)
+ 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')
- for (var i = 0; i < newChecksum.length; ++i) {
- if (newChecksum[i] === checksum[i]) continue
+ this.d = d
+ } else {
+ typeforce(types.ECPoint, Q)
- throw new Error('Invalid checksum')
+ this.__Q = Q
}
- return payload
+ this.compressed = options.compressed === undefined ? true : options.compressed
+ this.network = options.network || NETWORKS.bitcoin
}
-module.exports = {
- encode: encode,
- decode: decode
+Object.defineProperty(ECPair.prototype, 'Q', {
+ get: function () {
+ if (!this.__Q && this.d) {
+ this.__Q = secp256k1.G.multiply(this.d)
+ }
+
+ return this.__Q
+ }
+})
+
+ECPair.fromPublicKeyBuffer = function (buffer, network) {
+ var Q = ecurve.Point.decodeFrom(secp256k1, buffer)
+
+ return new ECPair(null, Q, {
+ compressed: Q.compressed,
+ network: network
+ })
}
-}).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')
+ECPair.fromWIF = function (string, network) {
+ var decoded = wif.decode(string)
+ var version = decoded.version
-var Transform = require('stream').Transform
+ // list of networks?
+ if (types.Array(network)) {
+ network = network.filter(function (x) {
+ return version === x.wif
+ }).pop()
-function HashNoConstructor(hash) {
- Transform.call(this)
+ if (!network) throw new Error('Unknown network version')
- this._hash = hash
- this.buffers = []
+ // otherwise, assume a network object (or default to bitcoin)
+ } else {
+ network = network || NETWORKS.bitcoin
+
+ if (version !== network.wif) throw new Error('Invalid network version')
+ }
+
+ var d = BigInteger.fromBuffer(decoded.privateKey)
+
+ return new ECPair(d, null, {
+ compressed: decoded.compressed,
+ network: network
+ })
}
-inherits(HashNoConstructor, Transform)
+ECPair.makeRandom = function (options) {
+ options = options || {}
+
+ var rng = options.rng || randomBytes
-HashNoConstructor.prototype._transform = function (data, _, next) {
- this.buffers.push(data)
+ var d
+ do {
+ var buffer = rng(32)
+ typeforce(types.Buffer256bit, buffer)
+
+ 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
+
+ var r = BigInteger.fromBuffer(buffer.slice(1, 33))
+ var s = BigInteger.fromBuffer(buffer.slice(33))
- return enc ? outData.toString(enc) : outData
+ 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;
-}
-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);
+ 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
}
-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.toDER = function () {
+ var r = Buffer.from(this.r.toDERInteger())
+ var s = Buffer.from(this.s.toDERInteger())
-/*
- * 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;
+ return bip66.encode(r, s)
+}
- var a = 1732584193;
- var b = -271733879;
- var c = -1732584194;
- var d = 271733878;
+ECSignature.prototype.toScriptSignature = function (hashType) {
+ var hashTypeMod = hashType & ~0x80
+ if (hashTypeMod <= 0 || hashTypeMod >= 4) throw new Error('Invalid hashType ' + hashType)
- for(var i = 0; i < x.length; i += 16)
- {
- var olda = a;
- var oldb = b;
- var oldc = c;
- var oldd = d;
+ var hashTypeBuffer = Buffer.alloc(1)
+ hashTypeBuffer.writeUInt8(hashType, 0)
- 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);
+ return Buffer.concat([this.toDER(), hashTypeBuffer])
+}
- 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);
+module.exports = ECSignature
- 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);
+}).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_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);
+var BigInteger = require('bigi')
+var ECPair = require('./ecpair')
- 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);
+var ecurve = require('ecurve')
+var curve = ecurve.getCurveByName('secp256k1')
-}
+function HDNode (keyPair, chainCode) {
+ typeforce(types.tuple('ECPair', types.Buffer256bit), arguments)
-/*
- * 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);
-}
+ if (!keyPair.compressed) throw new TypeError('BIP32 only allows compressed keyPairs')
-/*
- * 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);
+ this.keyPair = keyPair
+ this.chainCode = chainCode
+ this.depth = 0
+ this.index = 0
+ this.parentFingerprint = 0x00000000
}
-/*
- * Bitwise rotate a 32-bit number to the left.
- */
-function bit_rol(num, cnt)
-{
- return (num << cnt) | (num >>> (32 - cnt));
-}
+HDNode.HIGHEST_BIT = 0x80000000
+HDNode.LENGTH = 78
+HDNode.MASTER_SECRET = Buffer.from('Bitcoin seed', 'utf8')
-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.fromSeedBuffer = function (seed, network) {
+ typeforce(types.tuple(types.Buffer, types.maybe(types.Network)), arguments)
-Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 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')
- - 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.
+ var I = createHmac('sha512', HDNode.MASTER_SECRET).update(seed).digest()
+ var IL = I.slice(0, 32)
+ var IR = I.slice(32)
-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.
-*/
+ // 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
+ })
-// 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
-]
+ return new HDNode(keyPair, IR)
+}
-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
-]
+HDNode.fromSeedHex = function (hex, network) {
+ return HDNode.fromSeedBuffer(Buffer.from(hex, 'hex'), network)
+}
-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
-]
+HDNode.fromBase58 = function (string, networks) {
+ var buffer = base58check.decode(string)
+ if (buffer.length !== 78) throw new Error('Invalid buffer length')
-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: version bytes
+ var version = buffer.readUInt32BE(0)
+ var network
-var hl = [0x00000000, 0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xA953FD4E]
-var hr = [0x50A28BE6, 0x5C4DD124, 0x6D703EF3, 0x7A6D76E9, 0x00000000]
+ // list of networks?
+ if (Array.isArray(networks)) {
+ network = networks.filter(function (x) {
+ return version === x.bip32.private ||
+ version === x.bip32.public
+ }).pop()
-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
-}
+ if (!network) throw new Error('Unknown network version')
-function wordsToBytes (words) {
- var bytes = []
- for (var b = 0; b < words.length * 32; b += 8) {
- bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF)
+ // otherwise, assume a network object (or default to bitcoin)
+ } else {
+ network = networks || NETWORKS.bitcoin
}
- return bytes
-}
-
-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]
- // Swap
- M[offset_i] = (
- (((M_offset_i << 8) | (M_offset_i >>> 24)) & 0x00ff00ff) |
- (((M_offset_i << 24) | (M_offset_i >>> 8)) & 0xff00ff00)
- )
- }
+ if (version !== network.bip32.private &&
+ version !== network.bip32.public) throw new Error('Invalid network version')
- // Working variables
- var al, bl, cl, dl, el
- var ar, br, cr, dr, er
+ // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ...
+ var depth = buffer[4]
- ar = al = H[0]
- br = bl = H[1]
- cr = cl = H[2]
- dr = dl = H[3]
- er = el = H[4]
+ // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
+ var parentFingerprint = buffer.readUInt32BE(5)
+ if (depth === 0) {
+ if (parentFingerprint !== 0x00000000) throw new Error('Invalid parent fingerprint')
+ }
- // 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
+ // 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')
- 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]
- }
+ // 32 bytes: the chain code
+ var chainCode = buffer.slice(13, 45)
+ var keyPair
- t = t | 0
- t = rotl(t, sr[i])
- t = (t + er) | 0
- ar = er
- er = dr
- dr = rotl(cr, 10)
- cr = br
- br = t
+ // 33 bytes: private key data (0x00 + k)
+ if (version === network.bip32.private) {
+ if (buffer.readUInt8(45) !== 0x00) throw new Error('Invalid private key')
+
+ var d = BigInteger.fromBuffer(buffer.slice(46, 78))
+ keyPair = new ECPair(d, null, { network: network })
+
+ // 33 bytes: public key data (0x02 + X or 0x03 + X)
+ } else {
+ var Q = ecurve.Point.decodeFrom(curve, buffer.slice(45, 78))
+ // Q.compressed is assumed, if somehow this assumption is broken, `new HDNode` will throw
+
+ // Verify that the X coordinate in the public point corresponds to a point on the curve.
+ // If not, the extended public key is invalid.
+ curve.validate(Q)
+
+ keyPair = new ECPair(null, Q, { network: network })
}
- // intermediate hash value
- t = (H[1] + cl + dr) | 0
- H[1] = (H[2] + dl + er) | 0
- H[2] = (H[3] + el + ar) | 0
- H[3] = (H[4] + al + br) | 0
- H[4] = (H[0] + bl + cr) | 0
- H[0] = t
+ var hd = new HDNode(keyPair, chainCode)
+ hd.depth = depth
+ hd.index = index
+ hd.parentFingerprint = parentFingerprint
+
+ return hd
}
-function f1 (x, y, z) {
- return ((x) ^ (y) ^ (z))
+HDNode.prototype.getAddress = function () {
+ return this.keyPair.getAddress()
}
-function f2 (x, y, z) {
- return (((x) & (y)) | ((~x) & (z)))
+HDNode.prototype.getIdentifier = function () {
+ return bcrypto.hash160(this.keyPair.getPublicKeyBuffer())
}
-function f3 (x, y, z) {
- return (((x) | (~(y))) ^ (z))
+HDNode.prototype.getFingerprint = function () {
+ return this.getIdentifier().slice(0, 4)
}
-function f4 (x, y, z) {
- return (((x) & (z)) | ((y) & (~(z))))
+HDNode.prototype.getNetwork = function () {
+ return this.keyPair.getNetwork()
}
-function f5 (x, y, z) {
- return ((x) ^ ((y) | (~(z))))
+HDNode.prototype.getPublicKeyBuffer = function () {
+ return this.keyPair.getPublicKeyBuffer()
}
-function rotl (x, n) {
- return (x << n) | (x >>> (32 - n))
+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 ripemd160 (message) {
- var H = [0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0]
+HDNode.prototype.sign = function (hash) {
+ return this.keyPair.sign(hash)
+}
- if (typeof message === 'string') {
- message = new Buffer(message, 'utf8')
- }
+HDNode.prototype.verify = function (hash, signature) {
+ return this.keyPair.verify(hash, signature)
+}
- var m = bytesToWords(message)
+HDNode.prototype.toBase58 = function (__isPrivate) {
+ if (__isPrivate !== undefined) throw new TypeError('Unsupported argument in 2.0.0')
- var nBitsLeft = message.length * 8
- var nBitsTotal = message.length * 8
+ // Version
+ var network = this.keyPair.network
+ var version = (!this.isNeutered()) ? network.bip32.private : network.bip32.public
+ var buffer = Buffer.allocUnsafe(78)
- // 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: version bytes
+ buffer.writeUInt32BE(version, 0)
- for (var i = 0; i < m.length; i += 16) {
- processBlock(H, m, i)
- }
+ // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ....
+ buffer.writeUInt8(this.depth, 4)
- // swap endian
- for (i = 0; i < 5; i++) {
- // shortcut
- var H_i = H[i]
+ // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
+ buffer.writeUInt32BE(this.parentFingerprint, 5)
- // Swap
- H[i] = (((H_i << 8) | (H_i >>> 24)) & 0x00ff00ff) |
- (((H_i << 24) | (H_i >>> 8)) & 0xff00ff00)
+ // 4 bytes: child number. This is the number i in xi = xpar/i, with xi the key being serialized.
+ // This is encoded in big endian. (0x00000000 if master key)
+ buffer.writeUInt32BE(this.index, 9)
+
+ // 32 bytes: the chain code
+ this.chainCode.copy(buffer, 13)
+
+ // 33 bytes: the public key or private key data
+ if (!this.isNeutered()) {
+ // 0x00 + k for private keys
+ buffer.writeUInt8(0, 45)
+ this.keyPair.d.toBuffer(32).copy(buffer, 46)
+
+ // 33 bytes: the public key
+ } else {
+ // X9.62 encoding for public keys
+ this.keyPair.getPublicKeyBuffer().copy(buffer, 45)
}
- 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: 0x0488b21e,
+ private: 0x0488ade4,
+ },
+ pubKeyHash: 0x30,
+ scriptHash: 0x32,
+ wif: 0xb0
+ },
+ litecoinLtub: {
+ 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
+function isPushOnly (value) {
+ return types.Array(value) && value.every(isPushOnlyChunk)
+}
- var a = this._a
- var b = this._b
- var c = this._c
- var d = this._d
- var e = this._e
+function compile (chunks) {
+ // TODO: remove me
+ if (Buffer.isBuffer(chunks)) return chunks
- var j = 0, k
+ typeforce(types.Array, chunks)
- /*
- * 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
+ var bufferSize = chunks.reduce(function (accum, chunk) {
+ // data chunk
+ if (Buffer.isBuffer(chunk)) {
+ // adhere to BIP62.3, minimal push policy
+ if (chunk.length === 1 && (chunk[0] === 0x81 || (chunk[0] >= 1 && chunk[0] <= 16))) {
+ return accum + 1
+ }
- var t = rol(a, 5) + f + e + w + k
+ return accum + pushdata.encodingLength(chunk.length) + chunk.length
+ }
- e = d
- d = c
- c = rol(b, 30)
- b = a
- a = t
- j++
- }
+ // opcode
+ return accum + 1
+ }, 0.0)
- k = 1518500249
- while (j < 16) loop(M.readInt32BE(j * 4), (b & c) | ((~b) & d))
- while (j < 20) loop(calcW(), (b & c) | ((~b) & d))
- k = 1859775393
- while (j < 40) loop(calcW(), b ^ c ^ d)
- k = -1894007588
- while (j < 60) loop(calcW(), (b & c) | (b & d) | (c & d))
- k = -899497514
- while (j < 80) loop(calcW(), b ^ c ^ d)
+ var buffer = Buffer.allocUnsafe(bufferSize)
+ var offset = 0
- this._a = (a + this._a) | 0
- this._b = (b + this._b) | 0
- this._c = (c + this._c) | 0
- this._d = (d + this._d) | 0
- this._e = (e + this._e) | 0
-}
+ chunks.forEach(function (chunk) {
+ // data chunk
+ if (Buffer.isBuffer(chunk)) {
+ // adhere to BIP62.3, minimal push policy
+ if (chunk.length === 1 && chunk[0] >= 1 && chunk[0] <= 16) {
+ var opcode = OP_INT_BASE + chunk[0]
+ buffer.writeUInt8(opcode, offset)
+ offset += 1
+ return
+ }
-Sha.prototype._hash = function () {
- var H = new Buffer(20)
+ if (chunk.length === 1 && chunk[0] === 0x81) {
+ buffer.writeUInt8(OPS.OP_1NEGATE, offset)
+ offset += 1
+ return
+ }
- H.writeInt32BE(this._a | 0, 0)
- H.writeInt32BE(this._b | 0, 4)
- H.writeInt32BE(this._c | 0, 8)
- H.writeInt32BE(this._d | 0, 12)
- H.writeInt32BE(this._e | 0, 16)
+ offset += pushdata.encode(buffer, chunk.length, offset)
- return H
+ chunk.copy(buffer, offset)
+ offset += chunk.length
+
+ // opcode
+ } else {
+ buffer.writeUInt8(chunk, offset)
+ offset += 1
+ }
+ })
+
+ if (offset !== buffer.length) throw new Error('Could not decode chunks')
+ return buffer
}
-module.exports = Sha
+function decompile (buffer) {
+ // TODO: remove me
+ if (types.Array(buffer)) return buffer
+ typeforce(types.Buffer, buffer)
-}).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.
- */
+ var chunks = []
+ var i = 0
-var inherits = require('inherits')
-var Hash = require('./hash')
+ while (i < buffer.length) {
+ var opcode = buffer[i]
-var W = new Array(80)
+ // data chunk
+ if ((opcode > OPS.OP_0) && (opcode <= OPS.OP_PUSHDATA4)) {
+ var d = pushdata.decode(buffer, i)
-function Sha1 () {
- this.init()
- this._w = W
+ // did reading a pushDataInt fail? empty script
+ if (d === null) return []
+ i += d.size
- Hash.call(this, 64, 56)
-}
+ // attempt to read too much data? empty script
+ if (i + d.number > buffer.length) return []
-inherits(Sha1, Hash)
+ var data = buffer.slice(i, i + d.number)
+ i += d.number
-Sha1.prototype.init = function () {
- this._a = 0x67452301 | 0
- this._b = 0xefcdab89 | 0
- this._c = 0x98badcfe | 0
- this._d = 0x10325476 | 0
- this._e = 0xc3d2e1f0 | 0
+ chunks.push(data)
- return this
+ // opcode
+ } else {
+ chunks.push(opcode)
+
+ i += 1
+ }
+ }
+
+ return chunks
}
-/*
- * Bitwise rotate a 32-bit number to the left.
- */
-function rol (num, cnt) {
- return (num << cnt) | (num >>> (32 - cnt))
+function toASM (chunks) {
+ if (Buffer.isBuffer(chunks)) {
+ chunks = decompile(chunks)
+ }
+
+ return chunks.map(function (chunk) {
+ // data?
+ if (Buffer.isBuffer(chunk)) return chunk.toString('hex')
+
+ // opcode!
+ return REVERSE_OPS[chunk]
+ }).join(' ')
}
-Sha1.prototype._update = function (M) {
- var W = this._w
+function fromASM (asm) {
+ typeforce(types.String, asm)
- var a = this._a
- var b = this._b
- var c = this._c
- var d = this._d
- var e = this._e
+ return compile(asm.split(' ').map(function (chunkStr) {
+ // opcode?
+ if (OPS[chunkStr] !== undefined) return OPS[chunkStr]
+ typeforce(types.Hex, chunkStr)
- var j = 0, k
+ // data!
+ return Buffer.from(chunkStr, 'hex')
+ }))
+}
- function calcW () { return rol(W[j - 3] ^ W[j - 8] ^ W[j - 14] ^ W[j - 16], 1) }
- function loop (w, f) {
- W[j] = w
+function toStack (chunks) {
+ chunks = decompile(chunks)
+ typeforce(isPushOnly, chunks)
- var t = rol(a, 5) + f + e + w + k
+ return chunks.map(function (op) {
+ if (Buffer.isBuffer(op)) return op
+ if (op === OPS.OP_0) return Buffer.allocUnsafe(0)
- e = d
- d = c
- c = rol(b, 30)
- b = a
- a = t
- j++
+ return scriptNumber.encode(op - OP_INT_BASE)
+ })
+}
+
+function isCanonicalPubKey (buffer) {
+ if (!Buffer.isBuffer(buffer)) return false
+ if (buffer.length < 33) return false
+
+ switch (buffer[0]) {
+ case 0x02:
+ case 0x03:
+ return buffer.length === 33
+ case 0x04:
+ return buffer.length === 65
}
- 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 false
+}
- 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
+function isDefinedHashType (hashType) {
+ var hashTypeMod = hashType & ~0x80
+
+// return hashTypeMod > SIGHASH_ALL && hashTypeMod < SIGHASH_SINGLE
+ return hashTypeMod > 0x00 && hashTypeMod < 0x04
}
-Sha1.prototype._hash = function () {
- var H = new Buffer(20)
+function isCanonicalSignature (buffer) {
+ if (!Buffer.isBuffer(buffer)) return false
+ if (!isDefinedHashType(buffer[buffer.length - 1])) return false
- 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 bip66.check(buffer.slice(0, -1))
+}
- return H
+module.exports = {
+ compile: compile,
+ decompile: decompile,
+ fromASM: fromASM,
+ toASM: toASM,
+ toStack: toStack,
+
+ number: require('./script_number'),
+
+ isCanonicalPubKey: isCanonicalPubKey,
+ isCanonicalSignature: isCanonicalSignature,
+ isPushOnly: isPushOnly,
+ isDefinedHashType: isDefinedHashType
}
-module.exports = Sha1
+var templates = require('./templates')
+for (var key in templates) {
+ module.exports[key] = templates[key]
+}
-}).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
- *
- */
+},{"./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 Sha256 = require('./sha256')
-var Hash = require('./hash')
+function decode (buffer, maxLength, minimal) {
+ maxLength = maxLength || 4
+ minimal = minimal === undefined ? true : minimal
-var W = new Array(64)
+ var length = buffer.length
+ if (length === 0) return 0
+ if (length > maxLength) throw new TypeError('Script number overflow')
+ if (minimal) {
+ if ((buffer[length - 1] & 0x7f) === 0) {
+ if (length <= 1 || (buffer[length - 2] & 0x80) === 0) throw new Error('Non-minimally encoded script number')
+ }
+ }
-function Sha224 () {
- this.init()
+ // 40-bit
+ if (length === 5) {
+ var a = buffer.readUInt32LE(0)
+ var b = buffer.readUInt8(4)
- this._w = W // new Array(64)
+ if (b & 0x80) return -(((b & ~0x80) * 0x100000000) + a)
+ return (b * 0x100000000) + a
+ }
- Hash.call(this, 64, 56)
-}
+ var result = 0
-inherits(Sha224, Sha256)
+ // 32-bit / 24-bit / 16-bit / 8-bit
+ for (var i = 0; i < length; ++i) {
+ result |= buffer[i] << (8 * i)
+ }
-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
+ if (buffer[length - 1] & 0x80) return -(result & ~(0x80 << (8 * (length - 1))))
+ return result
+}
- return this
+function scriptNumSize (i) {
+ return i > 0x7fffffff ? 5
+ : i > 0x7fffff ? 4
+ : i > 0x7fff ? 3
+ : i > 0x7f ? 2
+ : i > 0x00 ? 1
+ : 0
}
-Sha224.prototype._hash = function () {
- var H = new Buffer(28)
+function encode (number) {
+ var value = Math.abs(number)
+ var size = scriptNumSize(value)
+ var buffer = Buffer.allocUnsafe(size)
+ var negative = number < 0
- H.writeInt32BE(this._a, 0)
- H.writeInt32BE(this._b, 4)
- H.writeInt32BE(this._c, 8)
- H.writeInt32BE(this._d, 12)
- H.writeInt32BE(this._e, 16)
- H.writeInt32BE(this._f, 20)
- H.writeInt32BE(this._g, 24)
+ for (var i = 0; i < size; ++i) {
+ buffer.writeUInt8(value & 0xff, i)
+ value >>= 8
+ }
- return H
+ if (buffer[size - 1] & 0x80) {
+ buffer.writeUInt8(negative ? 0x80 : 0x00, size - 1)
+ } else if (negative) {
+ buffer[size - 1] |= 0x80
+ }
+
+ return buffer
}
-module.exports = Sha224
+module.exports = {
+ decode: decode,
+ encode: encode
+}
-}).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
- *
- */
+},{"safe-buffer":98}],54:[function(require,module,exports){
+var decompile = require('../script').decompile
+var multisig = require('./multisig')
+var nullData = require('./nulldata')
+var pubKey = require('./pubkey')
+var pubKeyHash = require('./pubkeyhash')
+var scriptHash = require('./scripthash')
+var witnessPubKeyHash = require('./witnesspubkeyhash')
+var witnessScriptHash = require('./witnessscripthash')
+var witnessCommitment = require('./witnesscommitment')
+
+var types = {
+ MULTISIG: 'multisig',
+ NONSTANDARD: 'nonstandard',
+ NULLDATA: 'nulldata',
+ P2PK: 'pubkey',
+ P2PKH: 'pubkeyhash',
+ P2SH: 'scripthash',
+ P2WPKH: 'witnesspubkeyhash',
+ P2WSH: 'witnessscripthash',
+ WITNESS_COMMITMENT: 'witnesscommitment'
+}
-var inherits = require('inherits')
-var Hash = require('./hash')
+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
-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
-]
+ // 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
-var W = new Array(64)
+ return types.NONSTANDARD
+}
-function Sha256 () {
- this.init()
+function classifyInput (script, allowIncomplete) {
+ // XXX: optimization, below functions .decompile before use
+ var chunks = decompile(script)
- this._w = W // new Array(64)
+ 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
- Hash.call(this, 64, 56)
+ return types.NONSTANDARD
}
-inherits(Sha256, Hash)
+function classifyWitness (script, allowIncomplete) {
+ // XXX: optimization, below functions .decompile before use
+ var chunks = decompile(script)
-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
+ if (witnessPubKeyHash.input.check(chunks)) return types.P2WPKH
+ if (witnessScriptHash.input.check(chunks, allowIncomplete)) return types.P2WSH
- return this
+ return types.NONSTANDARD
}
-function S (X, n) {
- return (X >>> n) | (X << (32 - n))
+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 R (X, n) {
- return (X >>> n)
-}
+},{"./input":56,"./output":57}],56:[function(require,module,exports){
+// OP_0 [signatures ...]
-function Ch (x, y, z) {
- return ((x & y) ^ ((~x) & z))
+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)
}
-function Maj (x, y, z) {
- return ((x & y) ^ (x & z) ^ (y & z))
+function check (script, allowIncomplete) {
+ var chunks = bscript.decompile(script)
+ if (chunks.length < 2) return false
+ if (chunks[0] !== OPS.OP_0) return false
+
+ if (allowIncomplete) {
+ return chunks.slice(1).every(partialSignature)
+ }
+
+ return chunks.slice(1).every(bscript.isCanonicalSignature)
}
+check.toJSON = function () { return 'multisig input' }
+
+var EMPTY_BUFFER = Buffer.allocUnsafe(0)
+
+function encodeStack (signatures, scriptPubKey) {
+ typeforce([partialSignature], signatures)
-function Sigma0256 (x) {
- return (S(x, 2) ^ S(x, 13) ^ S(x, 22))
+ if (scriptPubKey) {
+ var scriptData = bscript.multisig.output.decode(scriptPubKey)
+
+ if (signatures.length < scriptData.m) {
+ throw new TypeError('Not enough signatures provided')
+ }
+
+ if (signatures.length > scriptData.pubKeys.length) {
+ throw new TypeError('Too many signatures provided')
+ }
+ }
+
+ return [].concat(EMPTY_BUFFER, signatures)
}
-function Sigma1256 (x) {
- return (S(x, 6) ^ S(x, 11) ^ S(x, 25))
+function encode (signatures, scriptPubKey) {
+ return bscript.compile(encodeStack(signatures, scriptPubKey))
}
-function Gamma0256 (x) {
- return (S(x, 7) ^ S(x, 18) ^ R(x, 3))
+function decodeStack (stack, allowIncomplete) {
+ typeforce(check, stack, allowIncomplete)
+ return stack.slice(1)
}
-function Gamma1256 (x) {
- return (S(x, 17) ^ S(x, 19) ^ R(x, 10))
+function decode (buffer, allowIncomplete) {
+ var stack = bscript.decompile(buffer)
+ return decodeStack(stack, allowIncomplete)
}
-Sha256.prototype._update = function (M) {
- var W = this._w
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
+}
- 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
+},{"../../script":52,"bitcoin-ops":40,"safe-buffer":98,"typeforce":109}],57:[function(require,module,exports){
+// m [pubKeys ...] n OP_CHECKMULTISIG
- var j = 0
+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 calcW () { return Gamma1256(W[j - 2]) + W[j - 7] + Gamma0256(W[j - 15]) + W[j - 16] }
- function loop (w) {
- W[j] = w
+ var n = pubKeys.length
+ if (n < m) throw new TypeError('Not enough pubKeys provided')
- var T1 = h + Sigma1256(e) + Ch(e, f, g) + K[j] + w
- var T2 = Sigma0256(a) + Maj(a, b, c)
+ return bscript.compile([].concat(
+ OP_INT_BASE + m,
+ pubKeys,
+ OP_INT_BASE + n,
+ OPS.OP_CHECKMULTISIG
+ ))
+}
- h = g
- g = f
- f = e
- e = d + T1
- d = c
- c = b
- b = a
- a = T1 + T2
+function decode (buffer, allowIncomplete) {
+ var chunks = bscript.decompile(buffer)
+ typeforce(check, chunks, allowIncomplete)
- j++
+ return {
+ m: chunks[0] - OP_INT_BASE,
+ pubKeys: chunks.slice(1, -2)
}
+}
- while (j < 16) loop(M.readInt32BE(j * 4))
- while (j < 64) loop(calcW())
-
- 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
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
}
-Sha256.prototype._hash = function () {
- var H = new Buffer(32)
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],58:[function(require,module,exports){
+// OP_RETURN {data}
- H.writeInt32BE(this._a, 0)
- H.writeInt32BE(this._b, 4)
- H.writeInt32BE(this._c, 8)
- H.writeInt32BE(this._d, 12)
- H.writeInt32BE(this._e, 16)
- H.writeInt32BE(this._f, 20)
- H.writeInt32BE(this._g, 24)
- H.writeInt32BE(this._h, 28)
+var bscript = require('../script')
+var types = require('../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
- return H
+function check (script) {
+ var buffer = bscript.compile(script)
+
+ return buffer.length > 1 &&
+ buffer[0] === OPS.OP_RETURN
}
+check.toJSON = function () { return 'null data output' }
-module.exports = Sha256
+function encode (data) {
+ typeforce(types.Buffer, data)
-}).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')
+ return bscript.compile([OPS.OP_RETURN, data])
+}
-var W = new Array(160)
+function decode (buffer) {
+ typeforce(check, buffer)
-function Sha384 () {
- this.init()
- this._w = W
+ return buffer.slice(2)
+}
- Hash.call(this, 128, 112)
+module.exports = {
+ output: {
+ check: check,
+ decode: decode,
+ encode: encode
+ }
}
-inherits(Sha384, SHA512)
+},{"../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}
-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
+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' }
-Sha384.prototype._hash = function () {
- var H = new Buffer(48)
+function encodeStack (signature) {
+ typeforce(types.Buffer, signature)
+ return [signature]
+}
- function writeInt64BE (h, l, offset) {
- H.writeInt32BE(h, offset)
- H.writeInt32BE(l, offset + 4)
- }
+function encode (signature) {
+ return bscript.compile(encodeStack(signature))
+}
- 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 decodeStack (stack) {
+ typeforce(check, stack)
+ return stack[0]
+}
- return H
+function decode (buffer) {
+ var stack = bscript.decompile(buffer)
+ return decodeStack(stack)
}
-module.exports = Sha384
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
+}
-}).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')
+},{"../../script":52,"../../types":78,"typeforce":109}],61:[function(require,module,exports){
+// {pubKey} OP_CHECKSIG
-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
-]
+var bscript = require('../../script')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
-var W = new Array(160)
+function check (script) {
+ var chunks = bscript.decompile(script)
-function Sha512 () {
- this.init()
- this._w = W
+ return chunks.length === 2 &&
+ bscript.isCanonicalPubKey(chunks[0]) &&
+ chunks[1] === OPS.OP_CHECKSIG
+}
+check.toJSON = function () { return 'pubKey output' }
- Hash.call(this, 128, 112)
+function encode (pubKey) {
+ typeforce(bscript.isCanonicalPubKey, pubKey)
+
+ return bscript.compile([pubKey, OPS.OP_CHECKSIG])
}
-inherits(Sha512, Hash)
+function decode (buffer) {
+ var chunks = bscript.decompile(buffer)
+ typeforce(check, chunks)
-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
+ return chunks[0]
+}
- return this
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
}
-function S (X, Xl, n) {
- return (X >>> n) | (Xl << (32 - n))
+},{"../../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 bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+
+function check (script) {
+ var chunks = bscript.decompile(script)
+
+ return chunks.length === 2 &&
+ bscript.isCanonicalSignature(chunks[0]) &&
+ bscript.isCanonicalPubKey(chunks[1])
}
+check.toJSON = function () { return 'pubKeyHash input' }
-function Ch (x, y, z) {
- return ((x & y) ^ ((~x) & z))
+function encodeStack (signature, pubKey) {
+ typeforce({
+ signature: types.Buffer, pubKey: types.Buffer
+ }, {
+ signature: signature, pubKey: pubKey
+ })
+
+ return [signature, pubKey]
}
-function Maj (x, y, z) {
- return ((x & y) ^ (x & z) ^ (y & z))
+function encode (signature, pubKey) {
+ return bscript.compile(encodeStack(signature, pubKey))
}
-Sha512.prototype._update = function (M) {
- var W = this._w
+function decodeStack (stack) {
+ typeforce(check, 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
+ return {
+ signature: stack[0],
+ pubKey: stack[1]
+ }
+}
- var al = this._al | 0
- var bl = this._bl | 0
- var cl = this._cl | 0
- var dl = this._dl | 0
- var el = this._el | 0
- var fl = this._fl | 0
- var gl = this._gl | 0
- var hl = this._hl | 0
+function decode (buffer) {
+ var stack = bscript.decompile(buffer)
+ return decodeStack(stack)
+}
- 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)
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
+}
- 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)
+},{"../../script":52,"../../types":78,"typeforce":109}],64:[function(require,module,exports){
+// OP_DUP OP_HASH160 {pubKeyHash} OP_EQUALVERIFY OP_CHECKSIG
- // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
- var Wi7 = W[j - 7 * 2]
- var Wi7l = W[j - 7 * 2 + 1]
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
- var Wi16 = W[j - 16 * 2]
- var Wi16l = W[j - 16 * 2 + 1]
+function check (script) {
+ var buffer = bscript.compile(script)
- 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 buffer.length === 25 &&
+ buffer[0] === OPS.OP_DUP &&
+ buffer[1] === OPS.OP_HASH160 &&
+ buffer[2] === 0x14 &&
+ buffer[23] === OPS.OP_EQUALVERIFY &&
+ buffer[24] === OPS.OP_CHECKSIG
+}
+check.toJSON = function () { return 'pubKeyHash output' }
- function loop () {
- W[j] = Wi
- W[j + 1] = Wil
+function encode (pubKeyHash) {
+ typeforce(types.Hash160bit, pubKeyHash)
- var maj = Maj(a, b, c)
- var majl = Maj(al, bl, cl)
+ return bscript.compile([
+ OPS.OP_DUP,
+ OPS.OP_HASH160,
+ pubKeyHash,
+ OPS.OP_EQUALVERIFY,
+ OPS.OP_CHECKSIG
+ ])
+}
- 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)
+function decode (buffer) {
+ typeforce(check, buffer)
- // t1 = h + sigma1 + ch + K[i] + W[i]
- var Ki = K[j]
- var Kil = K[j + 1]
+ return buffer.slice(3, 23)
+}
- var ch = Ch(e, f, g)
- var chl = Ch(el, fl, gl)
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
- 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)
+},{"../../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}
- // t2 = sigma0 + maj
- var t2l = sigma0l + majl
- var t2 = sigma0h + maj + ((t2l >>> 0) < (sigma0l >>> 0) ? 1 : 0)
+var Buffer = require('safe-buffer').Buffer
+var bscript = require('../../script')
+var typeforce = require('typeforce')
- 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 check (script, allowIncomplete) {
+ var chunks = bscript.decompile(script)
+ if (chunks.length < 1) return false
- i++
- j += 2
- }
+ var lastChunk = chunks[chunks.length - 1]
+ if (!Buffer.isBuffer(lastChunk)) return false
- while (i < 16) {
- Wi = M.readInt32BE(j * 4)
- Wil = M.readInt32BE(j * 4 + 4)
+ var scriptSigChunks = bscript.decompile(bscript.compile(chunks.slice(0, -1)))
+ var redeemScriptChunks = bscript.decompile(lastChunk)
- loop()
- }
+ // is redeemScript a valid script?
+ if (redeemScriptChunks.length === 0) return false
+
+ // is redeemScriptSig push only?
+ if (!bscript.isPushOnly(scriptSigChunks)) return false
- while (i < 80) {
- calcW()
- loop()
+ 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._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 encodeStack (redeemScriptStack, redeemScript) {
+ var serializedScriptPubKey = bscript.compile(redeemScript)
- 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
+ return [].concat(redeemScriptStack, serializedScriptPubKey)
}
-Sha512.prototype._hash = function () {
- var H = new Buffer(64)
+function encode (redeemScriptSig, redeemScript) {
+ var redeemScriptStack = bscript.decompile(redeemScriptSig)
- function writeInt64BE (h, l, offset) {
- H.writeInt32BE(h, offset)
- H.writeInt32BE(l, offset + 4)
- }
+ return bscript.compile(encodeStack(redeemScriptStack, redeemScript))
+}
- 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 decodeStack (stack) {
+ typeforce(check, stack)
- return H
+ return {
+ redeemScriptStack: stack.slice(0, -1),
+ redeemScript: stack[stack.length - 1]
+ }
}
-module.exports = Sha512
-
-}).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')
+function decode (buffer) {
+ var stack = bscript.decompile(buffer)
+ var result = decodeStack(stack)
+ result.redeemScriptSig = bscript.compile(result.redeemScriptStack)
+ delete result.redeemScriptStack
+ return result
+}
-var Transform = require('stream').Transform
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
+}
-var ZEROS = new Buffer(128)
-ZEROS.fill(0)
+},{"../../script":52,"safe-buffer":98,"typeforce":109}],67:[function(require,module,exports){
+// OP_HASH160 {scriptHash} OP_EQUAL
-function Hmac(alg, key) {
- Transform.call(this)
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
- if (typeof key === 'string') {
- key = new Buffer(key)
- }
+function check (script) {
+ var buffer = bscript.compile(script)
- var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64
+ return buffer.length === 23 &&
+ buffer[0] === OPS.OP_HASH160 &&
+ buffer[1] === 0x14 &&
+ buffer[22] === OPS.OP_EQUAL
+}
+check.toJSON = function () { return 'scriptHash output' }
- this._alg = alg
- this._key = key
+function encode (scriptHash) {
+ typeforce(types.Hash160bit, scriptHash)
- if (key.length > blocksize) {
- key = createHash(alg).update(key).digest()
+ return bscript.compile([OPS.OP_HASH160, scriptHash, OPS.OP_EQUAL])
+}
- } else if (key.length < blocksize) {
- key = Buffer.concat([key, ZEROS], blocksize)
- }
+function decode (buffer) {
+ typeforce(check, buffer)
- var ipad = this._ipad = new Buffer(blocksize)
- var opad = this._opad = new Buffer(blocksize)
+ return buffer.slice(2, 22)
+}
- for (var i = 0; i < blocksize; i++) {
- ipad[i] = key[i] ^ 0x36
- opad[i] = key[i] ^ 0x5C
- }
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
- this._hash = createHash(alg).update(ipad)
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],68:[function(require,module,exports){
+module.exports = {
+ output: require('./output')
}
-inherits(Hmac, Transform)
+},{"./output":69}],69:[function(require,module,exports){
+// OP_RETURN {aa21a9ed} {commitment}
-Hmac.prototype.update = function (data, enc) {
- this._hash.update(data, enc)
+var Buffer = require('safe-buffer').Buffer
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
- return this
-}
+var HEADER = Buffer.from('aa21a9ed', 'hex')
-Hmac.prototype._transform = function (data, _, next) {
- this._hash.update(data)
+function check (script) {
+ var buffer = bscript.compile(script)
- next()
+ return buffer.length > 37 &&
+ buffer[0] === OPS.OP_RETURN &&
+ buffer[1] === 0x24 &&
+ buffer.slice(2, 6).equals(HEADER)
}
-Hmac.prototype._flush = function (next) {
- this.push(this.digest())
+check.toJSON = function () { return 'Witness commitment output' }
+
+function encode (commitment) {
+ typeforce(types.Hash256bit, commitment)
+
+ var buffer = Buffer.allocUnsafe(36)
+ HEADER.copy(buffer, 0)
+ commitment.copy(buffer, 4)
- next()
+ return bscript.compile([OPS.OP_RETURN, buffer])
}
-Hmac.prototype.digest = function (enc) {
- var h = this._hash.digest()
+function decode (buffer) {
+ typeforce(check, buffer)
- return createHash(this._alg).update(this._opad).update(h).digest(enc)
+ return bscript.decompile(buffer)[1].slice(4, 36)
}
-module.exports = function createHmac(alg, key) {
- return new Hmac(alg, key)
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
}
-}).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')
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"safe-buffer":98,"typeforce":109}],70:[function(require,module,exports){
+arguments[4][55][0].apply(exports,arguments)
+},{"./input":71,"./output":72,"dup":55}],71:[function(require,module,exports){
+// {signature} {pubKey}
-var Point = require('./point')
+var pkh = require('../pubkeyhash/input')
-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
+module.exports = {
+ check: pkh.check,
+ decodeStack: pkh.decodeStack,
+ encodeStack: pkh.encodeStack
+}
- this.infinity = new Point(this, null, null, BigInteger.ZERO)
+},{"../pubkeyhash/input":63}],72:[function(require,module,exports){
+// OP_0 {pubKeyHash}
- // result caching
- this.pOverFour = p.add(BigInteger.ONE).shiftRight(2)
-}
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
-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
+function check (script) {
+ var buffer = bscript.compile(script)
- var y = beta
- if (beta.isEven() ^ !isOdd) {
- y = this.p.subtract(y) // -y % p
- }
+ return buffer.length === 22 &&
+ buffer[0] === OPS.OP_0 &&
+ buffer[1] === 0x14
+}
+check.toJSON = function () { return 'Witness pubKeyHash output' }
- return Point.fromAffine(this, x, y)
+function encode (pubKeyHash) {
+ typeforce(types.Hash160bit, pubKeyHash)
+
+ return bscript.compile([OPS.OP_0, pubKeyHash])
}
-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 buffer.slice(2)
}
-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,"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}
- // 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 p2sh = require('../scripthash/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: p2sh.check,
+ decodeStack: p2sh.decodeStack,
+ encodeStack: p2sh.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')
+},{"../scripthash/input":66}],75:[function(require,module,exports){
+// OP_0 {scriptHash}
- // 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 === 34 &&
+ buffer[0] === OPS.OP_0 &&
+ buffer[1] === 0x20
}
+check.toJSON = function () { return 'Witness scriptHash output' }
-module.exports = Curve
+function encode (scriptHash) {
+ typeforce(types.Hash256bit, scriptHash)
-},{"./point":51,"assert":5,"bigi":3}],48:[function(require,module,exports){
-module.exports={
- "secp128r1": {
- "p": "fffffffdffffffffffffffffffffffff",
- "a": "fffffffdfffffffffffffffffffffffc",
- "b": "e87579c11079f43dd824993c2cee5ed3",
- "n": "fffffffe0000000075a30d1b9038a115",
- "h": "01",
- "Gx": "161ff7528b899b2d0c28607ca52c5b86",
- "Gy": "cf5ac8395bafeb13c02da292dded7a83"
- },
- "secp160k1": {
- "p": "fffffffffffffffffffffffffffffffeffffac73",
- "a": "00",
- "b": "07",
- "n": "0100000000000000000001b8fa16dfab9aca16b6b3",
- "h": "01",
- "Gx": "3b4c382ce37aa192a4019e763036f4f5dd4d7ebb",
- "Gy": "938cf935318fdced6bc28286531733c3f03c4fee"
- },
- "secp160r1": {
- "p": "ffffffffffffffffffffffffffffffff7fffffff",
- "a": "ffffffffffffffffffffffffffffffff7ffffffc",
- "b": "1c97befc54bd7a8b65acf89f81d4d4adc565fa45",
- "n": "0100000000000000000001f4c8f927aed3ca752257",
- "h": "01",
- "Gx": "4a96b5688ef573284664698968c38bb913cbfc82",
- "Gy": "23a628553168947d59dcc912042351377ac5fb32"
- },
- "secp192k1": {
- "p": "fffffffffffffffffffffffffffffffffffffffeffffee37",
- "a": "00",
- "b": "03",
- "n": "fffffffffffffffffffffffe26f2fc170f69466a74defd8d",
- "h": "01",
- "Gx": "db4ff10ec057e9ae26b07d0280b7f4341da5d1b1eae06c7d",
- "Gy": "9b2f2f6d9c5628a7844163d015be86344082aa88d95e2f9d"
- },
- "secp192r1": {
- "p": "fffffffffffffffffffffffffffffffeffffffffffffffff",
- "a": "fffffffffffffffffffffffffffffffefffffffffffffffc",
- "b": "64210519e59c80e70fa7e9ab72243049feb8deecc146b9b1",
- "n": "ffffffffffffffffffffffff99def836146bc9b1b4d22831",
- "h": "01",
- "Gx": "188da80eb03090f67cbf20eb43a18800f4ff0afd82ff1012",
- "Gy": "07192b95ffc8da78631011ed6b24cdd573f977a11e794811"
- },
- "secp256k1": {
- "p": "fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f",
- "a": "00",
- "b": "07",
- "n": "fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141",
- "h": "01",
- "Gx": "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798",
- "Gy": "483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8"
- },
- "secp256r1": {
- "p": "ffffffff00000001000000000000000000000000ffffffffffffffffffffffff",
- "a": "ffffffff00000001000000000000000000000000fffffffffffffffffffffffc",
- "b": "5ac635d8aa3a93e7b3ebbd55769886bc651d06b0cc53b0f63bce3c3e27d2604b",
- "n": "ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551",
- "h": "01",
- "Gx": "6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296",
- "Gy": "4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5"
- }
+ return bscript.compile([OPS.OP_0, scriptHash])
}
-},{}],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}],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')
-var curves = require('./curves')
-var Curve = require('./curve')
+function varSliceSize (someScript) {
+ var length = someScript.length
-function getCurveByName(name) {
- var curve = curves[name]
- if (!curve) return null
+ return varuint.encodingLength(length) + length
+}
- 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)
+function vectorSize (someVector) {
+ var length = someVector.length
- return new Curve(p, a, b, Gx, Gy, n, h)
+ return varuint.encodingLength(length) + someVector.reduce(function (sum, witness) {
+ return sum + varSliceSize(witness)
+ }, 0)
}
-module.exports = getCurveByName
+function Transaction () {
+ this.version = 1
+ this.locktime = 0
+ this.ins = []
+ this.outs = []
+}
+
+Transaction.DEFAULT_SEQUENCE = 0xffffffff
+Transaction.SIGHASH_ALL = 0x01
+Transaction.SIGHASH_NONE = 0x02
+Transaction.SIGHASH_SINGLE = 0x03
+Transaction.SIGHASH_ANYONECANPAY = 0x80
+Transaction.ADVANCED_TRANSACTION_MARKER = 0x00
+Transaction.ADVANCED_TRANSACTION_FLAG = 0x01
+
+var EMPTY_SCRIPT = Buffer.allocUnsafe(0)
+var EMPTY_WITNESS = []
+var ZERO = Buffer.from('0000000000000000000000000000000000000000000000000000000000000000', 'hex')
+var ONE = Buffer.from('0000000000000000000000000000000000000000000000000000000000000001', 'hex')
+var VALUE_UINT64_MAX = Buffer.from('ffffffffffffffff', 'hex')
+var BLANK_OUTPUT = {
+ script: EMPTY_SCRIPT,
+ valueBuffer: VALUE_UINT64_MAX
+}
+
+Transaction.fromBuffer = function (buffer, __noStrict) {
+ var offset = 0
+ function readSlice (n) {
+ offset += n
+ return buffer.slice(offset - n, offset)
+ }
+
+ function readUInt32 () {
+ var i = buffer.readUInt32LE(offset)
+ offset += 4
+ return i
+ }
+
+ function readInt32 () {
+ var i = buffer.readInt32LE(offset)
+ offset += 4
+ return i
+ }
-},{"./curve":47,"./curves":48,"bigi":3}],51:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var BigInteger = require('bigi')
+ function readUInt64 () {
+ var i = bufferutils.readUInt64LE(buffer, offset)
+ offset += 8
+ return i
+ }
-var THREE = BigInteger.valueOf(3)
+ function readVarInt () {
+ var vi = varuint.decode(buffer, offset)
+ offset += varuint.decode.bytes
+ return vi
+ }
-function Point(curve, x, y, z) {
- assert.notStrictEqual(z, undefined, 'Missing Z coordinate')
+ function readVarSlice () {
+ return readSlice(readVarInt())
+ }
- this.curve = curve
- this.x = x
- this.y = y
- this.z = z
- this._zInv = null
+ function readVector () {
+ var count = readVarInt()
+ var vector = []
+ for (var i = 0; i < count; i++) vector.push(readVarSlice())
+ return vector
+ }
- this.compressed = true
-}
+ var tx = new Transaction()
+ tx.version = readInt32()
-Object.defineProperty(Point.prototype, 'zInv', {
- get: function() {
- if (this._zInv === null) {
- this._zInv = this.z.modInverse(this.curve.p)
- }
+ var marker = buffer.readUInt8(offset)
+ var flag = buffer.readUInt8(offset + 1)
- return this._zInv
+ var hasWitnesses = false
+ if (marker === Transaction.ADVANCED_TRANSACTION_MARKER &&
+ flag === Transaction.ADVANCED_TRANSACTION_FLAG) {
+ offset += 2
+ hasWitnesses = true
}
-})
-Object.defineProperty(Point.prototype, 'affineX', {
- get: function() {
- return this.x.multiply(this.zInv).mod(this.curve.p)
+ 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
+ })
}
-})
-Object.defineProperty(Point.prototype, 'affineY', {
- get: function() {
- return this.y.multiply(this.zInv).mod(this.curve.p)
+ var voutLen = readVarInt()
+ for (i = 0; i < voutLen; ++i) {
+ tx.outs.push({
+ value: readUInt64(),
+ script: readVarSlice()
+ })
}
-})
-
-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)
+ if (hasWitnesses) {
+ for (i = 0; i < vinLen; ++i) {
+ tx.ins[i].witness = readVector()
+ }
- // u = Y2 * Z1 - Y1 * Z2
- var u = other.y.multiply(this.z).subtract(this.y.multiply(other.z)).mod(this.curve.p)
+ // was this pointless?
+ if (!tx.hasWitnesses()) throw new Error('Transaction has superfluous witness data')
+ }
- if (u.signum() !== 0) return false
+ tx.locktime = readUInt32()
- // v = X2 * Z1 - X1 * Z2
- var v = other.x.multiply(this.z).subtract(this.x.multiply(other.z)).mod(this.curve.p)
+ if (__noStrict) return tx
+ if (offset !== buffer.length) throw new Error('Transaction has unexpected data')
- return v.signum() === 0
+ return tx
}
-Point.prototype.negate = function() {
- var y = this.curve.p.subtract(this.y)
-
- return new Point(this.curve, this.x, y, this.z)
+Transaction.fromHex = function (hex) {
+ return Transaction.fromBuffer(Buffer.from(hex, 'hex'))
}
-Point.prototype.add = function(b) {
- if (this.curve.isInfinity(this)) return b
- if (this.curve.isInfinity(b)) return this
-
- var x1 = this.x
- var y1 = this.y
- var x2 = b.x
- var y2 = b.y
+Transaction.isCoinbaseHash = function (buffer) {
+ typeforce(types.Hash256bit, buffer)
+ for (var i = 0; i < 32; ++i) {
+ if (buffer[i] !== 0) return false
+ }
+ return true
+}
- // 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)
+Transaction.prototype.isCoinbase = function () {
+ return this.ins.length === 1 && Transaction.isCoinbaseHash(this.ins[0].hash)
+}
- if (v.signum() === 0) {
- if (u.signum() === 0) {
- return this.twice() // this == b, so double
- }
+Transaction.prototype.addInput = function (hash, index, sequence, scriptSig) {
+ typeforce(types.tuple(
+ types.Hash256bit,
+ types.UInt32,
+ types.maybe(types.UInt32),
+ types.maybe(types.Buffer)
+ ), arguments)
- return this.curve.infinity // this = -b, so infinity
+ if (types.Null(sequence)) {
+ sequence = Transaction.DEFAULT_SEQUENCE
}
- var v2 = v.square()
- var v3 = v2.multiply(v)
- var x1v2 = x1.multiply(v2)
- var zu2 = u.square().multiply(this.z)
-
- // x3 = v * (z2 * (z1 * u^2 - 2 * x1 * v^2) - v^3)
- var x3 = zu2.subtract(x1v2.shiftLeft(1)).multiply(b.z).subtract(v3).multiply(v).mod(this.curve.p)
- // y3 = z2 * (3 * x1 * u * v^2 - y1 * v^3 - z1 * u^3) + u * v^3
- var y3 = x1v2.multiply(THREE).multiply(u).subtract(y1.multiply(v3)).subtract(zu2.multiply(u)).multiply(b.z).add(u.multiply(v3)).mod(this.curve.p)
- // z3 = v^3 * z1 * z2
- var z3 = v3.multiply(this.z).multiply(b.z).mod(this.curve.p)
-
- return new Point(this.curve, x3, y3, z3)
+ // 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)
}
-Point.prototype.twice = function() {
- if (this.curve.isInfinity(this)) return this
- if (this.y.signum() === 0) return this.curve.infinity
-
- var x1 = this.x
- var y1 = this.y
-
- var y1z1 = y1.multiply(this.z)
- var y1sqz1 = y1z1.multiply(y1).mod(this.curve.p)
- var a = this.curve.a
+Transaction.prototype.addOutput = function (scriptPubKey, value) {
+ typeforce(types.tuple(types.Buffer, types.Satoshi), arguments)
- // w = 3 * x1^2 + a * z1^2
- var w = x1.square().multiply(THREE)
+ // Add the output and return the output's index
+ return (this.outs.push({
+ script: scriptPubKey,
+ value: value
+ }) - 1)
+}
- if (a.signum() !== 0) {
- w = w.add(this.z.square().multiply(a))
- }
+Transaction.prototype.hasWitnesses = function () {
+ return this.ins.some(function (x) {
+ return x.witness.length !== 0
+ })
+}
- w = w.mod(this.curve.p)
- // x3 = 2 * y1 * z1 * (w^2 - 8 * x1 * y1^2 * z1)
- var x3 = w.square().subtract(x1.shiftLeft(3).multiply(y1sqz1)).shiftLeft(1).multiply(y1z1).mod(this.curve.p)
- // y3 = 4 * y1^2 * z1 * (3 * w * x1 - 2 * y1^2 * z1) - w^3
- var y3 = w.multiply(THREE).multiply(x1).subtract(y1sqz1.shiftLeft(1)).shiftLeft(2).multiply(y1sqz1).subtract(w.pow(3)).mod(this.curve.p)
- // z3 = 8 * (y1 * z1)^3
- var z3 = y1z1.pow(3).shiftLeft(3).mod(this.curve.p)
+Transaction.prototype.weight = function () {
+ var base = this.__byteLength(false)
+ var total = this.__byteLength(true)
+ return base * 3 + total
+}
- return new Point(this.curve, x3, y3, z3)
+Transaction.prototype.virtualSize = function () {
+ return Math.ceil(this.weight() / 4)
}
-// 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.byteLength = function () {
+ return this.__byteLength(true)
+}
- var e = k
- var h = e.multiply(THREE)
+Transaction.prototype.__byteLength = function (__allowWitness) {
+ var hasWitnesses = __allowWitness && this.hasWitnesses()
- var neg = this.negate()
- var R = this
+ 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)
+ )
+}
- for (var i = h.bitLength() - 2; i > 0; --i) {
- R = R.twice()
+Transaction.prototype.clone = function () {
+ var newTx = new Transaction()
+ newTx.version = this.version
+ newTx.locktime = this.locktime
- var hBit = h.testBit(i)
- var eBit = e.testBit(i)
+ newTx.ins = this.ins.map(function (txIn) {
+ return {
+ hash: txIn.hash,
+ index: txIn.index,
+ script: txIn.script,
+ sequence: txIn.sequence,
+ witness: txIn.witness
+ }
+ })
- if (hBit != eBit) {
- R = R.add(hBit ? this : neg)
+ newTx.outs = this.outs.map(function (txOut) {
+ return {
+ script: txOut.script,
+ value: txOut.value
}
- }
+ })
- return R
+ return newTx
}
-// Compute this*j + x*k (simultaneous multiplication)
-Point.prototype.multiplyTwo = function(j, x, k) {
- var i
-
- 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 otherTypes.value(type);
+ return true
+ })
+
+ 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
+function prepareInput (input, kpPubKey, redeemScript, witnessValue, witnessScript) {
+ var expanded
+ var prevOutType
+ var prevOutScript
- if (scripts.isPubKeyHashOutput(script)) return new Address(script.chunks[2], network.pubKeyHash)
- if (scripts.isScriptHashOutput(script)) return new Address(script.chunks[1], network.scriptHash)
+ 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
+ }
- assert(false, script.toASM() + ' has no matching Address')
-}
+ if (witness && !types.Satoshi(witnessValue)) {
+ throw new Error('Input was witness but not given witness value')
+ }
-Address.prototype.toBase58Check = function () {
- var payload = new Buffer(21)
- payload.writeUInt8(this.version, 0)
- this.hash.copy(payload, 1)
+ if (signType === scriptTypes.P2WPKH) {
+ signScript = bscript.pubKeyHash.output.encode(bscript.witnessPubKeyHash.output.decode(signScript))
+ }
+
+ if (p2sh) {
+ input.redeemScript = redeemScript
+ input.redeemScriptType = p2shType
+ }
+
+ if (p2wsh) {
+ input.witnessScript = witnessScript
+ input.witnessScriptType = witnessType
+ }
- return base58check.encode(payload)
+ 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.toOutputScript = function () {
- var scriptType = findScriptTypeByVersion(this.version)
+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 })
+ }
+
+ return bscript.multisig.input.encodeStack(signatures /* see if it's necessary first */)
+ }
+ } else {
+ throw new Error('Not yet supported')
+ }
- if (scriptType === 'pubkeyhash') return scripts.pubKeyHashOutput(this.hash)
- if (scriptType === 'scripthash') return scripts.scriptHashOutput(this.hash)
+ if (!allowIncomplete) throw new Error('Not enough signatures provided')
- assert(false, this.toString() + ' has no matching Script')
+ return []
}
-Address.prototype.toString = Address.prototype.toBase58Check
+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)
+ }
-module.exports = Address
+ 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
+ }
-}).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')
+ 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
+ }
-function decode () {
- console.warn('bs58check will be removed in 2.0.0. require("bs58check") instead.')
+ // append redeemScript if necessary
+ if (p2sh) {
+ sig.push(input.redeemScript)
+ }
- return bs58check.decode.apply(undefined, arguments)
+ return {
+ type: scriptType,
+ script: bscript.compile(sig),
+ witness: witness
+ }
}
-function encode () {
- console.warn('bs58check will be removed in 2.0.0. require("bs58check") instead.')
+function TransactionBuilder (network, maximumFeeRate) {
+ this.prevTxMap = {}
+ this.network = network || networks.bitcoin
- return bs58check.encode.apply(undefined, arguments)
-}
+ // WARNING: This is __NOT__ to be relied on, its just another potential safety mechanism (safety in-depth)
+ this.maximumFeeRate = maximumFeeRate || 1000
-module.exports = {
- decode: decode,
- encode: encode
+ this.inputs = []
+ this.tx = new Transaction()
}
-},{"bs58check":31}],56:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var bufferutils = require('./bufferutils')
-var crypto = require('./crypto')
+TransactionBuilder.prototype.setLockTime = function (locktime) {
+ typeforce(types.UInt32, locktime)
-var Transaction = require('./transaction')
+ // if any signatures exist, throw
+ if (this.inputs.some(function (input) {
+ if (!input.signatures) return false
-function Block () {
- this.version = 1
- this.prevHash = null
- this.merkleRoot = null
- this.timestamp = 0
- this.bits = 0
- this.nonce = 0
-}
+ return input.signatures.some(function (s) { return s })
+ })) {
+ throw new Error('No, this would invalidate signatures')
+ }
-Block.fromBuffer = function (buffer) {
- assert(buffer.length >= 80, 'Buffer too small (< 80 bytes)')
+ this.tx.locktime = locktime
+}
- var offset = 0
- function readSlice (n) {
- offset += n
- return buffer.slice(offset - n, offset)
- }
+TransactionBuilder.prototype.setVersion = function (version) {
+ typeforce(types.UInt32, version)
- function readUInt32 () {
- var i = buffer.readUInt32LE(offset)
- offset += 4
- return i
- }
+ // XXX: this might eventually become more complex depending on what the versions represent
+ this.tx.version = version
+}
- var block = new Block()
- block.version = readUInt32()
- block.prevHash = readSlice(32)
- block.merkleRoot = readSlice(32)
- block.timestamp = readUInt32()
- block.bits = readUInt32()
- block.nonce = readUInt32()
+TransactionBuilder.fromTransaction = function (transaction, network) {
+ var txb = new TransactionBuilder(network)
- if (buffer.length === 80) return block
+ // Copy transaction fields
+ txb.setVersion(transaction.version)
+ txb.setLockTime(transaction.locktime)
- function readVarInt () {
- var vi = bufferutils.readVarInt(buffer, offset)
- offset += vi.size
- return vi.number
- }
+ // Copy outputs (done first to avoid signature invalidation)
+ transaction.outs.forEach(function (txOut) {
+ txb.addOutput(txOut.script, txOut.value)
+ })
- // FIXME: poor performance
- function readTransaction () {
- var tx = Transaction.fromBuffer(buffer.slice(offset), true)
+ // Copy inputs
+ transaction.ins.forEach(function (txIn) {
+ txb.__addInputUnsafe(txIn.hash, txIn.index, {
+ sequence: txIn.sequence,
+ script: txIn.script,
+ witness: txIn.witness
+ })
+ })
- offset += tx.toBuffer().length
- return tx
- }
+ // fix some things not possible through the public API
+ txb.inputs.forEach(function (input, i) {
+ fixMultisigOrder(input, transaction, i)
+ })
- var nTransactions = readVarInt()
- block.transactions = []
+ return txb
+}
- for (var i = 0; i < nTransactions; ++i) {
- var tx = readTransaction()
- block.transactions.push(tx)
+TransactionBuilder.prototype.addInput = function (txHash, vout, sequence, prevOutScript) {
+ if (!this.__canModifyInputs()) {
+ throw new Error('No, this would invalidate signatures')
}
- return block
-}
+ var value
+
+ // is it a hex string?
+ if (typeof txHash === 'string') {
+ // transaction hashs's are displayed in reverse order, un-reverse it
+ txHash = Buffer.from(txHash, 'hex').reverse()
-Block.fromHex = function (hex) {
- return Block.fromBuffer(new Buffer(hex, 'hex'))
-}
+ // is it a Transaction object?
+ } else if (txHash instanceof Transaction) {
+ var txOut = txHash.outs[vout]
+ prevOutScript = txOut.script
+ value = txOut.value
-Block.prototype.getHash = function () {
- return crypto.hash256(this.toBuffer(true))
-}
+ txHash = txHash.getHash()
+ }
-Block.prototype.getId = function () {
- return bufferutils.reverse(this.getHash()).toString('hex')
+ 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 BigInteger = require('bigi')
-var ECPubKey = require('./ecpubkey')
+var ZEROS = Buffer.alloc(128)
+var blocksize = 64
-var ecurve = require('ecurve')
-var secp256k1 = ecurve.getCurveByName('secp256k1')
+function Hmac (alg, key) {
+ Base.call(this, 'digest')
+ if (typeof key === 'string') {
+ key = Buffer.from(key)
+ }
+
+ this._alg = alg
+ this._key = key
+
+ if (key.length > blocksize) {
+ key = alg(key)
+ } else if (key.length < blocksize) {
+ key = Buffer.concat([key, ZEROS], blocksize)
+ }
+
+ var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
+ var opad = this._opad = Buffer.allocUnsafe(blocksize)
-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')
+ for (var i = 0; i < blocksize; i++) {
+ ipad[i] = key[i] ^ 0x36
+ opad[i] = key[i] ^ 0x5C
+ }
- var Q = ECKey.curve.G.multiply(d)
+ this._hash = [ipad]
+}
+
+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
+
+ var x1 = this.x
+ var y1 = this.y
+ var x2 = b.x
+ var y2 = b.y
- assert(hashTypeMod > 0x00 && hashTypeMod < 0x04, 'Invalid 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)
- return {
- signature: ECSignature.fromDER(buffer.slice(0, -1)),
- hashType: hashType
- }
-}
+ if (v.signum() === 0) {
+ if (u.signum() === 0) {
+ return this.twice() // this == b, so double
+ }
-ECSignature.prototype.toCompact = function (i, compressed) {
- if (compressed) {
- i += 4
+ return this.curve.infinity // this = -b, so infinity
}
- i += 27
-
- 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 buffer
+ return {
+ opcode: opcode,
+ number: number,
+ size: size
+ }
+}
+
+module.exports = {
+ encodingLength: encodingLength,
+ encode: encode,
+ decode: decode
}
-// FIXME: remove in 2.x.y
-HDNode.prototype.toHex = function (isPrivate) {
- return this.toBuffer(isPrivate).toString('hex')
-}
+},{"bitcoin-ops":40}],96:[function(require,module,exports){
+(function (process,global){
+'use strict'
-// https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#child-key-derivation-ckd-functions
-HDNode.prototype.derive = function (index) {
- var isHardened = index >= HDNode.HIGHEST_BIT
- var indexBuffer = new Buffer(4)
- indexBuffer.writeUInt32BE(index, 0)
+function oldBrowser () {
+ throw new Error('secure random number generation not supported by this browser\nuse chrome, FireFox or Internet Explorer 11')
+}
- var data
+var Buffer = require('safe-buffer').Buffer
+var crypto = global.crypto || global.msCrypto
- // Hardened child
- if (isHardened) {
- assert(this.privKey, 'Could not derive hardened child key')
+if (crypto && crypto.getRandomValues) {
+ module.exports = randomBytes
+} else {
+ module.exports = oldBrowser
+}
- // data = 0x00 || ser256(kpar) || ser32(index)
- data = Buffer.concat([
- this.privKey.d.toBuffer(33),
- 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)
- // Normal child
- } else {
- // data = serP(point(kpar)) || ser32(index)
- // = serP(Kpar) || ser32(index)
- data = Buffer.concat([
- this.pubKey.toBuffer(),
- indexBuffer
- ])
+ // 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 I = createHmac('sha512', this.chainCode).update(data).digest()
- var IL = I.slice(0, 32)
- var IR = I.slice(32)
-
- 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)
+
+ for (var i = 0; i < ch; i++) {
+ buffer[(s % this._blockSize) + i] = data[i + f]
+ }
-function magicHash (message, network) {
- var magicPrefix = new Buffer(network.magicPrefix)
- var messageBuffer = new Buffer(message)
- var lengthBuffer = bufferutils.varIntBuffer(messageBuffer.length)
+ 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)
-
- var buffer = Buffer.concat([txTmp.toBuffer(), hashTypeBuffer])
- return crypto.hash256(buffer)
+function Gamma0l (x, xl) {
+ return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)
}
-Transaction.prototype.getHash = function () {
- return crypto.hash256(this.toBuffer())
+function Gamma1 (x, xl) {
+ return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)
}
-Transaction.prototype.getId = function () {
- // TxHash is little-endian, we need big-endian
- return bufferutils.reverse(this.getHash()).toString('hex')
+function Gamma1l (x, xl) {
+ return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)
}
-Transaction.prototype.toBuffer = function () {
- function scriptSize (script) {
- var length = script.buffer.length
-
- return bufferutils.varIntSize(length) + length
- }
-
- var buffer = new Buffer(
- 8 +
- bufferutils.varIntSize(this.ins.length) +
- bufferutils.varIntSize(this.outs.length) +
- this.ins.reduce(function (sum, input) { return sum + 40 + scriptSize(input.script) }, 0) +
- this.outs.reduce(function (sum, output) { return sum + 8 + scriptSize(output.script) }, 0)
- )
+function getCarry (a, b) {
+ return (a >>> 0) < (b >>> 0) ? 1 : 0
+}
- var offset = 0
- function writeSlice (slice) {
- slice.copy(buffer, offset)
- offset += slice.length
- }
+Sha512.prototype._update = function (M) {
+ var W = this._w
- function writeUInt32 (i) {
- buffer.writeUInt32LE(i, offset)
- offset += 4
- }
+ var ah = this._ah | 0
+ var bh = this._bh | 0
+ var ch = this._ch | 0
+ var dh = this._dh | 0
+ var eh = this._eh | 0
+ var fh = this._fh | 0
+ var gh = this._gh | 0
+ var hh = this._hh | 0
- function writeUInt64 (i) {
- bufferutils.writeUInt64LE(buffer, i, offset)
- offset += 8
- }
+ var al = this._al | 0
+ var bl = this._bl | 0
+ var cl = this._cl | 0
+ var dl = this._dl | 0
+ var el = this._el | 0
+ var fl = this._fl | 0
+ var gl = this._gl | 0
+ var hl = this._hl | 0
- function writeVarInt (i) {
- var n = bufferutils.writeVarInt(buffer, i, offset)
- offset += n
+ for (var i = 0; i < 32; i += 2) {
+ W[i] = M.readInt32BE(i * 4)
+ W[i + 1] = M.readInt32BE(i * 4 + 4)
}
+ for (; i < 160; i += 2) {
+ var xh = W[i - 15 * 2]
+ var xl = W[i - 15 * 2 + 1]
+ var gamma0 = Gamma0(xh, xl)
+ var gamma0l = Gamma0l(xl, xh)
- writeUInt32(this.version)
- writeVarInt(this.ins.length)
+ xh = W[i - 2 * 2]
+ xl = W[i - 2 * 2 + 1]
+ var gamma1 = Gamma1(xh, xl)
+ var gamma1l = Gamma1l(xl, xh)
- this.ins.forEach(function (txIn) {
- writeSlice(txIn.hash)
- writeUInt32(txIn.index)
- writeVarInt(txIn.script.buffer.length)
- writeSlice(txIn.script.buffer)
- writeUInt32(txIn.sequence)
- })
+ // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
+ var Wi7h = W[i - 7 * 2]
+ var Wi7l = W[i - 7 * 2 + 1]
- writeVarInt(this.outs.length)
- this.outs.forEach(function (txOut) {
- writeUInt64(txOut.value)
- writeVarInt(txOut.script.buffer.length)
- writeSlice(txOut.script.buffer)
- })
+ var Wi16h = W[i - 16 * 2]
+ var Wi16l = W[i - 16 * 2 + 1]
- writeUInt32(this.locktime)
+ var Wil = (gamma0l + Wi7l) | 0
+ var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0
+ Wil = (Wil + gamma1l) | 0
+ Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0
+ Wil = (Wil + Wi16l) | 0
+ Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0
- return buffer
-}
+ W[i] = Wih
+ W[i + 1] = Wil
+ }
-Transaction.prototype.toHex = function () {
- return this.toBuffer().toString('hex')
-}
+ for (var j = 0; j < 160; j += 2) {
+ Wih = W[j]
+ Wil = W[j + 1]
-Transaction.prototype.setInputScript = function (index, script) {
- typeForce('Number', index)
- typeForce('Script', script)
+ var majh = maj(ah, bh, ch)
+ var majl = maj(al, bl, cl)
- this.ins[index].script = script
-}
+ var sigma0h = sigma0(ah, al)
+ var sigma0l = sigma0(al, ah)
+ var sigma1h = sigma1(eh, el)
+ var sigma1l = sigma1(el, eh)
-// FIXME: remove in 2.x.y
-Transaction.prototype.sign = function (index, privKey, hashType) {
- console.warn('Transaction.prototype.sign is deprecated. Use TransactionBuilder instead.')
+ // t1 = h + sigma1 + ch + K[j] + W[j]
+ var Kih = K[j]
+ var Kil = K[j + 1]
- var prevOutScript = privKey.pub.getAddress().toOutputScript()
- var signature = this.signInput(index, prevOutScript, privKey, hashType)
+ var chh = Ch(eh, fh, gh)
+ var chl = Ch(el, fl, gl)
- var scriptSig = scripts.pubKeyHashInput(signature, privKey.pub)
- this.setInputScript(index, scriptSig)
-}
+ var t1l = (hl + sigma1l) | 0
+ var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0
+ t1l = (t1l + chl) | 0
+ t1h = (t1h + chh + getCarry(t1l, chl)) | 0
+ t1l = (t1l + Kil) | 0
+ t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0
+ t1l = (t1l + Wil) | 0
+ t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0
-// FIXME: remove in 2.x.y
-Transaction.prototype.signInput = function (index, prevOutScript, privKey, hashType) {
- console.warn('Transaction.prototype.signInput is deprecated. Use TransactionBuilder instead.')
+ // t2 = sigma0 + maj
+ var t2l = (sigma0l + majl) | 0
+ var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0
- hashType = hashType || Transaction.SIGHASH_ALL
+ hh = gh
+ hl = gl
+ gh = fh
+ gl = fl
+ fh = eh
+ fl = el
+ el = (dl + t1l) | 0
+ eh = (dh + t1h + getCarry(el, dl)) | 0
+ dh = ch
+ dl = cl
+ ch = bh
+ cl = bl
+ bh = ah
+ bl = al
+ al = (t1l + t2l) | 0
+ ah = (t1h + t2h + getCarry(al, t1l)) | 0
+ }
- var hash = this.hashForSignature(index, prevOutScript, hashType)
- var signature = privKey.sign(hash)
+ this._al = (this._al + al) | 0
+ this._bl = (this._bl + bl) | 0
+ this._cl = (this._cl + cl) | 0
+ this._dl = (this._dl + dl) | 0
+ this._el = (this._el + el) | 0
+ this._fl = (this._fl + fl) | 0
+ this._gl = (this._gl + gl) | 0
+ this._hl = (this._hl + hl) | 0
- return signature.toScriptSignature(hashType)
+ this._ah = (this._ah + ah + getCarry(this._al, al)) | 0
+ this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0
+ this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0
+ this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0
+ this._eh = (this._eh + eh + getCarry(this._el, el)) | 0
+ this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0
+ this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0
+ this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0
}
-// FIXME: remove in 2.x.y
-Transaction.prototype.validateInput = function (index, prevOutScript, pubKey, buffer) {
- console.warn('Transaction.prototype.validateInput is deprecated. Use TransactionBuilder instead.')
+Sha512.prototype._hash = function () {
+ var H = new Buffer(64)
+
+ function writeInt64BE (h, l, offset) {
+ H.writeInt32BE(h, offset)
+ H.writeInt32BE(l, offset + 4)
+ }
- var parsed = ECSignature.parseScriptSignature(buffer)
- var hash = this.hashForSignature(index, prevOutScript, parsed.hashType)
+ writeInt64BE(this._ah, this._al, 0)
+ writeInt64BE(this._bh, this._bl, 8)
+ writeInt64BE(this._ch, this._cl, 16)
+ writeInt64BE(this._dh, this._dl, 24)
+ writeInt64BE(this._eh, this._el, 32)
+ writeInt64BE(this._fh, this._fl, 40)
+ writeInt64BE(this._gh, this._gl, 48)
+ writeInt64BE(this._hh, this._hl, 56)
- return pubKey.verify(hash, parsed.signature)
+ return H
}
-module.exports = Transaction
+module.exports = Sha512
}).call(this,require("buffer").Buffer)
-},{"./address":54,"./bufferutils":57,"./crypto":58,"./ecsignature":62,"./opcodes":67,"./script":68,"./scripts":69,"assert":5,"buffer":7,"typeforce":53}],71:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var ops = require('./opcodes')
-var scripts = require('./scripts')
-
-var ECPubKey = require('./ecpubkey')
-var ECSignature = require('./ecsignature')
-var Script = require('./script')
-var Transaction = require('./transaction')
-
-function extractInput (txIn) {
- var redeemScript
- var scriptSig = txIn.script
- var prevOutScript
- var prevOutType = scripts.classifyInput(scriptSig, true)
- var scriptType
-
- // Re-classify if scriptHash
- if (prevOutType === 'scripthash') {
- redeemScript = Script.fromBuffer(scriptSig.chunks.slice(-1)[0])
- prevOutScript = scripts.scriptHashOutput(redeemScript.getHash())
+},{"./hash":99,"buffer":4,"inherits":93}],107:[function(require,module,exports){
+var inherits = require('inherits')
+var native = require('./native')
- scriptSig = Script.fromChunks(scriptSig.chunks.slice(0, -1))
- scriptType = scripts.classifyInput(scriptSig, true)
- } else {
- scriptType = prevOutType
- }
+function TfTypeError (type, value, valueTypeName) {
+ this.__error = Error.call(this)
+ this.__type = type
+ this.__value = value
+ this.__valueTypeName = valueTypeName
- // Extract hashType, pubKeys and signatures
- var hashType, parsed, pubKeys, signatures
+ var message
+ Object.defineProperty(this, 'message', {
+ enumerable: true,
+ get: function () {
+ if (message) return message
- switch (scriptType) {
- case 'pubkeyhash': {
- parsed = ECSignature.parseScriptSignature(scriptSig.chunks[0])
- hashType = parsed.hashType
- pubKeys = [ECPubKey.fromBuffer(scriptSig.chunks[1])]
- signatures = [parsed.signature]
- prevOutScript = pubKeys[0].getAddress().toOutputScript()
+ valueTypeName = valueTypeName || getValueTypeName(value)
+ message = tfErrorString(type, value, valueTypeName)
- break
+ return message
}
+ })
+}
- case 'pubkey': {
- parsed = ECSignature.parseScriptSignature(scriptSig.chunks[0])
- hashType = parsed.hashType
- signatures = [parsed.signature]
+function TfPropertyTypeError (type, property, label, value, error, valueTypeName) {
+ this.__error = error || Error.call(this)
+ this.__label = label
+ this.__property = property
+ this.__type = type
+ this.__value = value
+ this.__valueTypeName = valueTypeName
- if (redeemScript) {
- pubKeys = [ECPubKey.fromBuffer(redeemScript.chunks[0])]
+ var message
+ Object.defineProperty(this, 'message', {
+ enumerable: true,
+ get: function () {
+ if (message) return message
+ if (type) {
+ valueTypeName = valueTypeName || getValueTypeName(value)
+ message = tfPropertyErrorString(type, label, property, value, valueTypeName)
+ } else {
+ message = 'Unexpected property "' + property + '"'
}
- break
+ return message
}
+ })
+}
- case 'multisig': {
- signatures = scriptSig.chunks.slice(1).map(function (chunk) {
- if (chunk === ops.OP_0) return chunk
-
- var parsed = ECSignature.parseScriptSignature(chunk)
- hashType = parsed.hashType
+// inherit from Error, assign stack
+[TfTypeError, TfPropertyTypeError].forEach(function (tfErrorType) {
+ inherits(tfErrorType, Error)
+ Object.defineProperty(tfErrorType, 'stack', {
+ get: function () { return this.__error.stack }
+ })
+})
- return parsed.signature
- })
+function tfCustomError (expected, actual) {
+ return new TfTypeError(expected, {}, actual)
+}
- if (redeemScript) {
- pubKeys = redeemScript.chunks.slice(1, -2).map(ECPubKey.fromBuffer)
- }
+function tfSubError (e, property, label) {
+ // sub child?
+ if (e instanceof TfPropertyTypeError) {
+ property = property + '.' + e.__property
+ label = e.__label
- break
- }
+ return new TfPropertyTypeError(
+ e.__type, property, label, e.__value, e.__error, e.__valueTypeName
+ )
}
- return {
- hashType: hashType,
- prevOutScript: prevOutScript,
- prevOutType: prevOutType,
- pubKeys: pubKeys,
- redeemScript: redeemScript,
- scriptType: scriptType,
- signatures: signatures
+ // child?
+ if (e instanceof TfTypeError) {
+ return new TfPropertyTypeError(
+ e.__type, property, label, e.__value, e.__error, e.__valueTypeName
+ )
}
-}
-function TransactionBuilder () {
- this.prevTxMap = {}
- this.prevOutScripts = {}
- this.prevOutTypes = {}
-
- this.inputs = []
- this.tx = new Transaction()
+ return e
}
-TransactionBuilder.fromTransaction = function (transaction) {
- var txb = new TransactionBuilder()
-
- // Copy other transaction fields
- txb.tx.version = transaction.version
- txb.tx.locktime = transaction.locktime
+function getTypeName (fn) {
+ return fn.name || fn.toString().match(/function (.*?)\s*\(/)[1]
+}
- // Extract/add inputs
- transaction.ins.forEach(function (txIn) {
- txb.addInput(txIn.hash, txIn.index, txIn.sequence)
- })
+function getValueTypeName (value) {
+ return native.Nil(value) ? '' : getTypeName(value.constructor)
+}
- // Extract/add outputs
- transaction.outs.forEach(function (txOut) {
- txb.addOutput(txOut.script, txOut.value)
- })
+function getValue (value) {
+ if (native.Function(value)) return ''
+ if (native.String(value)) return JSON.stringify(value)
+ if (value && native.Object(value)) return ''
+ return value
+}
- // Extract/add signatures
- txb.inputs = transaction.ins.map(function (txIn) {
- // TODO: remove me after testcase added
- assert(!Transaction.isCoinbaseHash(txIn.hash), 'coinbase inputs not supported')
+function tfJSON (type) {
+ if (native.Function(type)) return type.toJSON ? type.toJSON() : getTypeName(type)
+ if (native.Array(type)) return 'Array'
+ if (type && native.Object(type)) return 'Object'
- // Ignore empty scripts
- if (txIn.script.buffer.length === 0) return {}
+ return type !== undefined ? type : ''
+}
- return extractInput(txIn)
- })
+function tfErrorString (type, value, valueTypeName) {
+ var valueJson = getValue(value)
- return txb
+ return 'Expected ' + tfJSON(type) + ', got' +
+ (valueTypeName !== '' ? ' ' + valueTypeName : '') +
+ (valueJson !== '' ? ' ' + valueJson : '')
}
-TransactionBuilder.prototype.addInput = function (prevTx, index, sequence, prevOutScript) {
- var prevOutHash
-
- // txId
- if (typeof prevTx === 'string') {
- prevOutHash = new Buffer(prevTx, 'hex')
+function tfPropertyErrorString (type, label, name, value, valueTypeName) {
+ var description = '" of type '
+ if (label === 'key') description = '" with key type '
- // TxId hex is big-endian, we want little-endian hash
- Array.prototype.reverse.call(prevOutHash)
+ return tfErrorString('property "' + tfJSON(name) + description + tfJSON(type), value, valueTypeName)
+}
- // Transaction
- } else if (prevTx instanceof Transaction) {
- prevOutHash = prevTx.getHash()
- prevOutScript = prevTx.outs[index].script
+module.exports = {
+ TfTypeError: TfTypeError,
+ TfPropertyTypeError: TfPropertyTypeError,
+ tfCustomError: tfCustomError,
+ tfSubError: tfSubError,
+ tfJSON: tfJSON,
+ getValueTypeName: getValueTypeName
+}
- // txHash
- } else {
- prevOutHash = prevTx
- }
+},{"./native":110,"inherits":93}],108:[function(require,module,exports){
+(function (Buffer){
+var NATIVE = require('./native')
+var ERRORS = require('./errors')
- var input = {}
- if (prevOutScript) {
- var prevOutType = scripts.classifyOutput(prevOutScript)
+function _Buffer (value) {
+ return Buffer.isBuffer(value)
+}
- // if we can, extract pubKey information
- switch (prevOutType) {
- case 'multisig': {
- input.pubKeys = prevOutScript.chunks.slice(1, -2).map(ECPubKey.fromBuffer)
- break
- }
+function Hex (value) {
+ return typeof value === 'string' && /^([0-9a-f]{2})+$/i.test(value)
+}
- case 'pubkey': {
- input.pubKeys = prevOutScript.chunks.slice(0, 1).map(ECPubKey.fromBuffer)
- break
- }
- }
+function _LengthN (type, length) {
+ var name = type.toJSON()
- if (prevOutType !== 'scripthash') {
- input.scriptType = prevOutType
- }
+ function Length (value) {
+ if (!type(value)) return false
+ if (value.length === length) return true
- input.prevOutScript = prevOutScript
- input.prevOutType = prevOutType
+ throw ERRORS.tfCustomError(name + '(Length: ' + length + ')', name + '(Length: ' + value.length + ')')
}
+ Length.toJSON = function () { return name }
- assert(this.inputs.every(function (input2) {
- if (input2.hashType === undefined) return true
+ return Length
+}
- return input2.hashType & Transaction.SIGHASH_ANYONECANPAY
- }), 'No, this would invalidate signatures')
+var _ArrayN = _LengthN.bind(null, NATIVE.Array)
+var _BufferN = _LengthN.bind(null, _Buffer)
+var _HexN = _LengthN.bind(null, Hex)
- var prevOut = prevOutHash.toString('hex') + ':' + index
- assert(!(prevOut in this.prevTxMap), 'Transaction is already an input')
+var UINT53_MAX = Math.pow(2, 53) - 1
- var vin = this.tx.addInput(prevOutHash, index, sequence)
- this.inputs[vin] = input
- this.prevTxMap[prevOut] = vin
+function Finite (value) {
+ return typeof value === 'number' && isFinite(value)
+}
+function Int8 (value) { return ((value << 24) >> 24) === value }
+function Int16 (value) { return ((value << 16) >> 16) === value }
+function Int32 (value) { return (value | 0) === value }
+function UInt8 (value) { return (value & 0xff) === value }
+function UInt16 (value) { return (value & 0xffff) === value }
+function UInt32 (value) { return (value >>> 0) === value }
+function UInt53 (value) {
+ return typeof value === 'number' &&
+ value >= 0 &&
+ value <= UINT53_MAX &&
+ Math.floor(value) === value
+}
- return vin
+var types = {
+ ArrayN: _ArrayN,
+ Buffer: _Buffer,
+ BufferN: _BufferN,
+ Finite: Finite,
+ Hex: Hex,
+ HexN: _HexN,
+ Int8: Int8,
+ Int16: Int16,
+ Int32: Int32,
+ UInt8: UInt8,
+ UInt16: UInt16,
+ UInt32: UInt32,
+ UInt53: UInt53
}
-TransactionBuilder.prototype.addOutput = function (scriptPubKey, value) {
- assert(this.inputs.every(function (input) {
- if (input.hashType === undefined) return true
+for (var typeName in types) {
+ types[typeName].toJSON = function (t) {
+ return t
+ }.bind(null, typeName)
+}
- return (input.hashType & 0x1f) === Transaction.SIGHASH_SINGLE
- }), 'No, this would invalidate signatures')
+module.exports = types
- return this.tx.addOutput(scriptPubKey, value)
-}
+}).call(this,{"isBuffer":require("../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js")})
+},{"../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js":9,"./errors":107,"./native":110}],109:[function(require,module,exports){
+var ERRORS = require('./errors')
+var NATIVE = require('./native')
-TransactionBuilder.prototype.build = function () {
- return this.__build(false)
-}
-TransactionBuilder.prototype.buildIncomplete = function () {
- return this.__build(true)
-}
+// short-hand
+var tfJSON = ERRORS.tfJSON
+var TfTypeError = ERRORS.TfTypeError
+var TfPropertyTypeError = ERRORS.TfPropertyTypeError
+var tfSubError = ERRORS.tfSubError
+var getValueTypeName = ERRORS.getValueTypeName
-var canSignTypes = {
- 'pubkeyhash': true,
- 'multisig': true,
- 'pubkey': true
-}
+var TYPES = {
+ arrayOf: function arrayOf (type) {
+ type = compile(type)
-TransactionBuilder.prototype.__build = function (allowIncomplete) {
- if (!allowIncomplete) {
- assert(this.tx.ins.length > 0, 'Transaction has no inputs')
- assert(this.tx.outs.length > 0, 'Transaction has no outputs')
- }
+ function _arrayOf (array, strict) {
+ if (!NATIVE.Array(array)) return false
- var tx = this.tx.clone()
+ return array.every(function (value, i) {
+ try {
+ return typeforce(type, value, strict)
+ } catch (e) {
+ throw tfSubError(e, i)
+ }
+ })
+ }
+ _arrayOf.toJSON = function () { return '[' + tfJSON(type) + ']' }
- // Create script signatures from signature meta-data
- this.inputs.forEach(function (input, index) {
- var scriptType = input.scriptType
- var scriptSig
+ return _arrayOf
+ },
- if (!allowIncomplete) {
- assert(!!scriptType, 'Transaction is not complete')
- assert(scriptType in canSignTypes, scriptType + ' not supported')
- assert(input.signatures, 'Transaction is missing signatures')
+ maybe: function maybe (type) {
+ type = compile(type)
+
+ function _maybe (value, strict) {
+ return NATIVE.Nil(value) || type(value, strict, maybe)
}
+ _maybe.toJSON = function () { return '?' + tfJSON(type) }
- if (input.signatures) {
- switch (scriptType) {
- case 'pubkeyhash': {
- var pkhSignature = input.signatures[0].toScriptSignature(input.hashType)
- scriptSig = scripts.pubKeyHashInput(pkhSignature, input.pubKeys[0])
- break
- }
+ return _maybe
+ },
- case 'multisig': {
- // Array.prototype.map is sparse-compatible
- var msSignatures = input.signatures.map(function (signature) {
- return signature && signature.toScriptSignature(input.hashType)
- })
+ map: function map (propertyType, propertyKeyType) {
+ propertyType = compile(propertyType)
+ if (propertyKeyType) propertyKeyType = compile(propertyKeyType)
- // fill in blanks with OP_0
- if (allowIncomplete) {
- for (var i = 0; i < msSignatures.length; ++i) {
- if (msSignatures[i]) continue
+ function _map (value, strict) {
+ if (!NATIVE.Object(value, strict)) return false
+ if (NATIVE.Nil(value, strict)) return false
- msSignatures[i] = ops.OP_0
- }
- } else {
- // Array.prototype.filter returns non-sparse array
- msSignatures = msSignatures.filter(function (x) { return x })
+ for (var propertyName in value) {
+ try {
+ if (propertyKeyType) {
+ typeforce(propertyKeyType, propertyName, strict)
}
-
- var redeemScript = allowIncomplete ? undefined : input.redeemScript
- scriptSig = scripts.multisigInput(msSignatures, redeemScript)
- break
+ } catch (e) {
+ throw tfSubError(e, propertyName, 'key')
}
- case 'pubkey': {
- var pkSignature = input.signatures[0].toScriptSignature(input.hashType)
- scriptSig = scripts.pubKeyInput(pkSignature)
- break
+ try {
+ var propertyValue = value[propertyName]
+ typeforce(propertyType, propertyValue, strict)
+ } catch (e) {
+ throw tfSubError(e, propertyName)
}
}
+
+ return true
}
- // did we build a scriptSig?
- if (scriptSig) {
- // wrap as scriptHash if necessary
- if (input.prevOutType === 'scripthash') {
- scriptSig = scripts.scriptHashInput(scriptSig, input.redeemScript)
+ if (propertyKeyType) {
+ _map.toJSON = function () {
+ return '{' + tfJSON(propertyKeyType) + ': ' + tfJSON(propertyType) + '}'
}
-
- tx.setInputScript(index, scriptSig)
+ } else {
+ _map.toJSON = function () { return '{' + tfJSON(propertyType) + '}' }
}
- })
-
- return tx
-}
-TransactionBuilder.prototype.sign = function (index, privKey, redeemScript, hashType) {
- assert(index in this.inputs, 'No input at index: ' + index)
- hashType = hashType || Transaction.SIGHASH_ALL
+ return _map
+ },
- var input = this.inputs[index]
- var canSign = input.hashType &&
- input.prevOutScript &&
- input.prevOutType &&
- input.pubKeys &&
- input.scriptType &&
- input.signatures
+ object: function object (uncompiled) {
+ var type = {}
- // are we almost ready to sign?
- if (canSign) {
- // if redeemScript was provided, enforce consistency
- if (redeemScript) {
- assert.deepEqual(input.redeemScript, redeemScript, 'Inconsistent redeemScript')
+ for (var typePropertyName in uncompiled) {
+ type[typePropertyName] = compile(uncompiled[typePropertyName])
}
- assert.equal(input.hashType, hashType, 'Inconsistent hashType')
+ 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 = []
+function compile (type) {
+ if (NATIVE.String(type)) {
+ if (type[0] === '?') return TYPES.maybe(compile(type.slice(1)))
- // FIXME: remove in 2.0.0
- this.unspentMap = {}
+ return NATIVE[type] || TYPES.quacksLike(type)
+ } else if (type && NATIVE.Object(type)) {
+ if (NATIVE.Array(type)) return TYPES.arrayOf(compile(type[0]))
- // FIXME: remove in 2.0.0
- var me = this
- this.newMasterKey = function (seed) {
- console.warn('newMasterKey is deprecated, please make a new Wallet instance instead')
-
- seed = seed || randomBytes(32)
- masterKey = HDNode.fromSeedBuffer(seed, network)
-
- accountZero = masterKey.deriveHardened(0)
- externalAccount = accountZero.derive(0)
- internalAccount = accountZero.derive(1)
-
- me.addresses = []
- me.changeAddresses = []
-
- me.unspents = []
- me.unspentMap = {}
+ return TYPES.object(type)
+ } else if (NATIVE.Function(type)) {
+ return type
}
- this.getMasterKey = function () {
- return masterKey
- }
- this.getAccountZero = function () {
- return accountZero
- }
- this.getExternalAccount = function () {
- return externalAccount
- }
- this.getInternalAccount = function () {
- return internalAccount
- }
+ return TYPES.value(type)
}
-Wallet.prototype.createTransaction = function (to, value, options) {
- // FIXME: remove in 2.0.0
- if (typeof options !== 'object') {
- if (options !== undefined) {
- console.warn('Non options object parameters are deprecated, use options object instead')
+function typeforce (type, value, strict, surrogate) {
+ if (NATIVE.Function(type)) {
+ if (type(value, strict)) return true
- options = {
- fixedFee: arguments[2],
- changeAddress: arguments[3]
- }
- }
- }
-
- options = options || {}
-
- assert(value > this.network.dustThreshold, value + ' must be above dust threshold (' + this.network.dustThreshold + ' Satoshis)')
-
- var changeAddress = options.changeAddress
- var fixedFee = options.fixedFee
- var minConf = options.minConf === undefined ? 0 : options.minConf // FIXME: change minConf:1 by default in 2.0.0
-
- // filter by minConf, then pending and sort by descending value
- var unspents = this.unspents.filter(function (unspent) {
- return unspent.confirmations >= minConf
- }).filter(function (unspent) {
- return !unspent.pending
- }).sort(function (o1, o2) {
- return o2.value - o1.value
- })
-
- var accum = 0
- var addresses = []
- var subTotal = value
-
- var txb = new TransactionBuilder()
- txb.addOutput(to, value)
-
- for (var i = 0; i < unspents.length; ++i) {
- var unspent = unspents[i]
- addresses.push(unspent.address)
-
- txb.addInput(unspent.txHash, unspent.index)
-
- var fee = fixedFee === undefined ? estimatePaddedFee(txb.buildIncomplete(), this.network) : fixedFee
-
- accum += unspent.value
- subTotal = value + fee
-
- if (accum >= subTotal) {
- var change = accum - subTotal
-
- if (change > this.network.dustThreshold) {
- txb.addOutput(changeAddress || this.getChangeAddress(), change)
- }
-
- 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)
-});</script>
- <script>bitcoin.networks.shadow = {
- magicPrefix: '\x19ShadowCash Signed Message:\n',
+},{"bs58check":80,"buffer":4}]},{},[33])(33)
+});
+</script>
+ <script>bitcoinjs.bitcoin.networks.shadow = {
+ messagePrefix: "unused",
bip32: {
public: 0xEE80286A,
private: 0xEE8031E8
pubKeyHash: 0x3f,
scriptHash: 0x7d,
wif: 0xbf,
- dustThreshold: 0,
- feePerKb: 1000,
- estimateFee: function() { return "unused in this app" },
};
-bitcoin.networks.shadowtn = {
- magicPrefix: '\x19ShadowCash Signed Message:\n',
+bitcoinjs.bitcoin.networks.shadowtn = {
+ messagePrefix: "unused",
bip32: {
public: 0x76C0FDFB,
private: 0x76C1077A
pubKeyHash: 0x7f,
scriptHash: 0xc4,
wif: 0xff,
- dustThreshold: 0,
- feePerKb: 1000,
- estimateFee: function() { return "unused in this app" },
};
-bitcoin.networks.clam = {
+bitcoinjs.bitcoin.networks.clam = {
+ messagePrefix: "unused",
bip32: {
public: 0xa8c26d64,
private: 0xa8c17826
},
pubKeyHash: 0x89,
+ scriptHash: 0x00, // TODO set this correctly
wif: 0x85,
};
-bitcoin.networks.dash = {
+bitcoinjs.bitcoin.networks.crown = {
+ messagePrefix: "unused",
+ bip32: {
+ public: 0x0488b21e,
+ private: 0x0488ade4
+ },
+ pubKeyHash: 0x00,
+ scriptHash: 0x05,
+ wif: 0x80,
+};
+
+bitcoinjs.bitcoin.networks.dash = {
+ messagePrefix: "unused",
bip32: {
public: 0x0488b21e,
private: 0x0488ade4
wif: 0xcc,
};
-bitcoin.networks.game = {
+bitcoinjs.bitcoin.networks.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
wif: 0xa6,
};
-bitcoin.networks.namecoin = {
+bitcoinjs.bitcoin.networks.namecoin = {
+ messagePrefix: "unused",
bip32: {
public: 0x0488b21e,
private: 0x0488ade4
},
pubKeyHash: 0x34,
- //scriptHash: 0x10,
+ scriptHash: 0x00, // TODO set this correctly
wif: 0x80,
};
-bitcoin.networks.peercoin = {
+bitcoinjs.bitcoin.networks.peercoin = {
+ messagePrefix: "unused",
bip32: {
public: 0x0488b21e,
private: 0x0488ade4
},
pubKeyHash: 0x37,
- //scriptHash: 0x10,
+ scriptHash: 0x00, // TODO set this correctly
wif: 0xb7,
};
+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
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;
var showPubKey = true;
var showPrivKey = true;
var showQr = false;
+ var litecoinUseLtub = false;
var entropyChangeTimeoutEvent = null;
var phraseChangeTimeoutEvent = null;
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.generate = $(".generate");
DOM.seed = $(".seed");
DOM.rootKey = $(".root-key");
+ DOM.litecoinLtubContainer = $(".litecoin-ltub-container");
+ DOM.litecoinUseLtub = $(".litecoin-use-ltub");
DOM.extendedPrivKey = $(".extended-priv-key");
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.useP2wpkhNestedInP2sh = $(".p2wpkh-nested-in-p2sh");
DOM.addresses = $(".addresses");
DOM.rowsToAdd = $(".rows-to-add");
DOM.more = $(".more");
DOM.generate.on("click", generateClicked);
DOM.more.on("click", showMore);
DOM.rootKey.on("input", delayedRootKeyChanged);
+ DOM.litecoinUseLtub.on("change", litecoinUseLtubChanged);
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.useP2wpkhNestedInP2sh.on("change", calcForDerivationPath);
DOM.indexToggle.on("click", toggleIndexes);
DOM.addressToggle.on("click", toggleAddresses);
DOM.publicKeyToggle.on("click", togglePublicKeys);
// Event handlers
function networkChanged(e) {
+ clearDerivedKeys();
+ clearAddressesList();
+ DOM.litecoinLtubContainer.addClass("hidden");
var networkIndex = e.target.value;
- networks[networkIndex].onSelect();
+ var network = networks[networkIndex];
+ network.onSelect();
+ if (network.p2wpkhNestedInP2shAvailable) {
+ showP2wpkhNestedInP2shAvailable();
+ }
+ else {
+ showP2wpkhNestedInP2shUnavailable();
+ }
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 rootKeyChanged() {
showPending();
hideValidationError();
- // Validate the root key TODO
var rootKeyBase58 = DOM.rootKey.val();
var errorText = validateRootKey(rootKeyBase58);
if (errorText) {
calcForDerivationPath();
}
+ function litecoinUseLtubChanged() {
+ litecoinUseLtub = DOM.litecoinUseLtub.prop("checked");
+ if (litecoinUseLtub) {
+ network = bitcoinjs.bitcoin.networks.litecoinLtub;
+ }
+ else {
+ network = bitcoinjs.bitcoin.networks.litecoin;
+ }
+ phraseChanged();
+ }
+
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, network);
}
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);
return "No root key";
}
// Check no hardened derivation path when using xpub keys
- var hardened = path.indexOf("'") > -1;
- var isXpubkey = !("privKey" in bip32RootKey);
+ var hardenedPath = path.indexOf("'") > -1;
+ var hardenedAddresses = bip32TabSelected() && DOM.hardenedAddresses.prop("checked");
+ var hardened = hardenedPath || hardenedAddresses;
+ 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 isP2wpkhNestedInP2sh = bip49TabSelected() || (bip32TabSelected() && useP2wpkhNestedInP2sh());
+ var p2wpkhNestedInP2shAvailable = 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 (isP2wpkhNestedInP2sh) {
+ if (!p2wpkhNestedInP2shAvailable) {
+ 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 useP2wpkhNestedInP2sh() {
+ return DOM.useP2wpkhNestedInP2sh.prop("checked");
+ }
+
+ function networkHasBip49() {
+ return networks[DOM.network.val()].p2wpkhNestedInP2shAvailable;
+ }
+
+ function bip49TabSelected() {
+ return DOM.bip49tab.hasClass("active");
+ }
+
+ function setHdCoin(coinValue) {
+ DOM.bip44coin.val(coinValue);
+ DOM.bip49coin.val(coinValue);
+ }
+
+ function showP2wpkhNestedInP2shAvailable() {
+ DOM.bip49unavailable.addClass("hidden");
+ DOM.bip49available.removeClass("hidden");
+ DOM.useP2wpkhNestedInP2sh.prop("disabled", false);
+ }
+
+ function showP2wpkhNestedInP2shUnavailable() {
+ DOM.bip49available.addClass("hidden");
+ DOM.bip49unavailable.removeClass("hidden");
+ DOM.useP2wpkhNestedInP2sh.prop("disabled", true);
+ DOM.useP2wpkhNestedInP2sh.prop("checked", false);
+ }
+
var networks = [
{
- name: "Bitcoin",
+ name: "BCH - Bitcoin Cash",
+ p2wpkhNestedInP2shAvailable: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.bitcoin;
+ setHdCoin(145);
+ },
+ },
+ {
+ name: "BTC - Bitcoin",
+ p2wpkhNestedInP2shAvailable: true,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.bitcoin;
+ setHdCoin(0);
+ },
+ },
+ {
+ name: "BTC - Bitcoin Testnet",
+ p2wpkhNestedInP2shAvailable: true,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.testnet;
+ setHdCoin(1);
+ },
+ },
+ {
+ name: "CLAM - Clams",
+ p2wpkhNestedInP2shAvailable: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.clam;
+ setHdCoin(23);
+ },
+ },
+ {
+ name: "CRW - Crown",
+ p2wpkhNestedInP2shAvailable: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.crown;
+ setHdCoin(72);
+ },
+ },
+ {
+ name: "DASH - Dash",
+ p2wpkhNestedInP2shAvailable: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.dash;
+ setHdCoin(5);
+ },
+ },
+ {
+ name: "DASH - Dash Testnet",
+ p2wpkhNestedInP2shAvailable: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.dashtn;
+ setHdCoin(1);
+ },
+ },
+ {
+ name: "DOGE - Dogecoin",
+ p2wpkhNestedInP2shAvailable: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.dogecoin;
+ setHdCoin(3);
+ },
+ },
+ {
+ name: "ETH - Ethereum",
+ p2wpkhNestedInP2shAvailable: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.bitcoin;
+ setHdCoin(60);
+ },
+ },
+ {
+ name: "GAME - GameCredits",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.bitcoin;
- DOM.bip44coin.val(0);
+ network = bitcoinjs.bitcoin.networks.game;
+ setHdCoin(101);
},
},
{
- name: "Bitcoin Testnet",
+ name: "JBS - Jumbucks",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.testnet;
- DOM.bip44coin.val(1);
+ network = bitcoinjs.bitcoin.networks.jumbucks;
+ setHdCoin(26);
},
},
{
- name: "CLAM",
+ name: "LTC - Litecoin",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.clam;
- DOM.bip44coin.val(23);
+ network = bitcoinjs.bitcoin.networks.litecoin;
+ setHdCoin(2);
+ DOM.litecoinLtubContainer.removeClass("hidden");
},
},
{
- name: "Dogecoin",
+ name: "MAZA - Maza",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.dogecoin;
- DOM.bip44coin.val(3);
+ network = bitcoinjs.bitcoin.networks.maza;
+ setHdCoin(13);
},
},
+
{
- name: "DASH",
+ name: "NMC - Namecoin",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.dash;
- DOM.bip44coin.val(5);
+ network = bitcoinjs.bitcoin.networks.namecoin;
+ setHdCoin(7);
},
},
{
- name: "Ethereum",
+ name: "PIVX - PIVX",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.bitcoin;
- DOM.bip44coin.val(60);
+ network = bitcoinjs.bitcoin.networks.pivx;
+ setHdCoin(119);
},
},
{
- name: "GAME",
+ name: "PIVX - PIVX Testnet",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.game;
- DOM.bip44coin.val(101);
+ network = bitcoinjs.bitcoin.networks.pivxtestnet;
+ setHdCoin(1);
},
},
{
- name: "Jumbucks",
+ name: "PPC - Peercoin",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.jumbucks;
- DOM.bip44coin.val(26);
+ network = bitcoinjs.bitcoin.networks.peercoin;
+ setHdCoin(6);
},
},
{
- name: "Litecoin",
+ name: "SDC - ShadowCash",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.litecoin;
- DOM.bip44coin.val(2);
+ network = bitcoinjs.bitcoin.networks.shadow;
+ setHdCoin(35);
},
},
{
- name: "Namecoin",
+ name: "SDC - ShadowCash Testnet",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.namecoin;
- DOM.bip44coin.val(7);
+ network = bitcoinjs.bitcoin.networks.shadowtn;
+ setHdCoin(1);
},
},
{
- name: "Peercoin",
+ name: "SLM - Slimcoin",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.peercoin;
- DOM.bip44coin.val(6);
+ network = bitcoinjs.bitcoin.networks.slimcoin;
+ setHdCoin(63);
},
},
{
- name: "ShadowCash",
+ name: "SLM - Slimcoin Testnet",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.shadow;
- DOM.bip44coin.val(35);
+ network = bitcoinjs.bitcoin.networks.slimcointn;
+ setHdCoin(111);
},
},
{
- name: "ShadowCash Testnet",
+ name: "VIA - Viacoin",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.shadowtn;
- DOM.bip44coin.val(1);
+ network = bitcoinjs.bitcoin.networks.viacoin;
+ setHdCoin(14);
},
},
{
- name: "Viacoin",
+ name: "VIA - Viacoin Testnet",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.viacoin;
- DOM.bip44coin.val(14);
+ network = bitcoinjs.bitcoin.networks.viacointestnet;
+ setHdCoin(1);
},
},
{
- name: "Viacoin Testnet",
+ name: "XMY - Myriadcoin",
+ p2wpkhNestedInP2shAvailable: false,
onSelect: function() {
- network = bitcoin.networks.viacointestnet;
- DOM.bip44coin.val(1);
+ network = bitcoinjs.bitcoin.networks.myriadcoin;
+ setHdCoin(90);
},
},
+ {
+ name: "XRP - Ripple",
+ p2wpkhNestedInP2shAvailable: false,
+ onSelect: function() {
+ network = bitcoinjs.bitcoin.networks.bitcoin;
+ setHdCoin(144);
+ },
+ }
]
var clients = [
projects / perso / Immae / Projets / Cryptomonnaies / BIP39.git / blobdiff