65 lines
2 KiB
JavaScript
65 lines
2 KiB
JavaScript
// BigInteger monkey patching
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BigInteger.valueOf = nbv;
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BigInteger.prototype.toByteArrayUnsigned = function () {
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var ba = this.toByteArray();
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return ba.map(function (v) {
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return (v < 0) ? v + 256 : v;
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});
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};
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// Console ignore
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var names = ["log", "debug", "info", "warn", "error", "assert", "dir",
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"dirxml", "group", "groupEnd", "time", "timeEnd", "count",
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"trace", "profile", "profileEnd"];
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if ("undefined" == typeof window.console) window.console = {};
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for (var i = 0; i < names.length; ++i)
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if ("undefined" == typeof window.console[names[i]])
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window.console[names[i]] = function() {};
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// Bitcoin utility functions
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Bitcoin.Util = {
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isArray: Array.isArray || function(o) {
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return Object.prototype.toString.call(o) === '[object Array]';
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},
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makeFilledArray: function (len, val) {
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var array = [];
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var i = 0;
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while (i < len) {
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array[i++] = val;
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}
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return array;
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},
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numToVarInt: function (i) {
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// TODO: THIS IS TOTALLY UNTESTED!
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if (i < 0xfd) {
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// unsigned char
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return [i];
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} else if (i <= 1<<16) {
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// unsigned short (LE)
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return [0xfd, i >>> 8, i & 255];
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} else if (i <= 1<<32) {
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// unsigned int (LE)
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return [0xfe].concat(Crypto.util.wordsToBytes([i]));
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} else {
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// unsigned long long (LE)
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return [0xff].concat(Crypto.util.wordsToBytes([i >>> 32, i]));
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}
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},
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valueToBigInt: function (valueBuffer) {
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if (valueBuffer instanceof BigInteger) return valueBuffer;
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return new BigInteger(valueBuffer);
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},
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formatValue: function (valueBuffer) {
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var value = this.valueToBigInt(valueBuffer).toString();
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var integerPart = value.length > 8 ? value.substr(0, value.length-8) : '0';
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var decimalPart = value.length > 8 ? value.substr(value.length-8) : value;
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while (decimalPart.length < 8) decimalPart = "0"+decimalPart;
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decimalPart = decimalPart.replace(/0*$/, '');
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while (decimalPart.length < 2) decimalPart += "0";
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return integerPart+"."+decimalPart;
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},
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sha256ripe160: function (data) {
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return Crypto.RIPEMD160(Crypto.SHA256(data, {asBytes: true}), {asBytes: true});
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}
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};
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