Merge pull request #298 from ryanxcharles/feature/bignum

Move bignumber.js to internal

bitcore.js

@@ -10,8 +10,16 @@ var requireWhenAccessed = function(name, file) {
   Object.defineProperty(module.exports, name, {get: function() {return require(file)}});
 };
 
-requireWhenAccessed('bignum', 'bignum');
-requireWhenAccessed('base58', 'base58-native');
+requireWhenAccessed('Bignum', './lib/Bignum');
+Object.defineProperty(module.exports, 'bignum', {get: function() {
+  console.log('bignum (with a lower-case "b") is deprecated. Use bitcore.Bignum (capital "B") instead.');
+  return require('./lib/Bignum');
+}});
+requireWhenAccessed('Base58', './lib/Base58');
+Object.defineProperty(module.exports, 'base58', {get: function() {
+  console.log('base58 (with a lower-case "b") is deprecated. Use bitcore.Base58 (capital "B") instead.');
+  return require('./lib/Base58');
+}});
 requireWhenAccessed('bufferput', 'bufferput');
 requireWhenAccessed('buffertools', 'buffertools');
 requireWhenAccessed('Buffers.monkey', './patches/Buffers.monkey');
@@ -56,6 +64,6 @@ module.exports.Buffer = Buffer;
 
 if (typeof process.versions === 'undefined') {
   // Browser specific
-  module.exports.bignum.config({EXPONENTIAL_AT: 9999999, DECIMAL_PLACES: 0, ROUNDING_MODE: 1});
+  module.exports.Bignum.config({EXPONENTIAL_AT: 9999999, DECIMAL_PLACES: 0, ROUNDING_MODE: 1});
 }
 

browser/bignum_config.js

@@ -1,6 +0,0 @@
-require('bignum').config({
-  EXPONENTIAL_AT: 9999999,
-  DECIMAL_PLACES: 0,
-  ROUNDING_MODE: 1,
-});
-

browser/build.js

@@ -24,6 +24,8 @@ var pack = function (params) {
 
 var modules = [
   'lib/Address',
+  'lib/Base58',
+  'lib/Bignum',
   'lib/BIP32',
   'lib/Block',
   'lib/Bloom',
@@ -94,18 +96,12 @@ var createBitcore = function(opts) {
   };
   var b = browserify(bopts);
 
-  b.require(opts.dir + 'browserify-bignum/bignumber.js', {
-    expose: 'bignum'
-  });
   b.require(opts.dir + 'browserify-buffertools/buffertools.js', {
     expose: 'buffertools'
   });
   b.require(opts.dir + 'bufferput', {
     expose: 'bufferput'
   });
-  b.require(opts.dir + 'base58-native', {
-    expose: 'base58-native'
-  });
   b.require(opts.dir + 'buffers', {
     expose: 'buffers'
   });

lib/BIP32.js

@@ -1,11 +1,10 @@
 var imports = require('soop').imports();
-var base58 = imports.base58 || require('base58-native').base58;
+var base58 = imports.base58 || require('./Base58').base58;
 var coinUtil = imports.coinUtil || require('../util');
 var Key = imports.Key || require('./Key');
 var Point = imports.Point || require('./Point');
 var SecureRandom = imports.SecureRandom || require('./SecureRandom');
-var bignum = imports.bignum || require('bignum');
-var crypto = require('crypto');
+var bignum = imports.bignum || require('./Bignum');
 var networks = require('../networks');
 
 var secp256k1_n = new bignum("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141", 16);

lib/Base58.js

@@ -0,0 +1,116 @@
+var crypto = require('crypto');
+var bignum = require('./Bignum');
+
+var globalBuffer = new Buffer(1024);
+var zerobuf = new Buffer(0);
+var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz';
+var ALPHABET_ZERO = ALPHABET[0];
+var ALPHABET_BUF = new Buffer(ALPHABET, 'ascii');
+var ALPHABET_INV = {};
+for(var i=0; i < ALPHABET.length; i++) {
+  ALPHABET_INV[ALPHABET[i]] = i;
+};
+
+// Vanilla Base58 Encoding
+var base58 = {
+  encode: function(buf) {
+    var str;
+    var x = bignum.fromBuffer(buf);
+    var r;
+
+    if(buf.length < 512) {
+      str = globalBuffer;
+    } else {
+      str = new Buffer(buf.length << 1);
+    }
+    var i = str.length - 1;
+    while(x.gt(0)) {
+      r = x.mod(58);
+      x = x.div(58);
+      str[i] = ALPHABET_BUF[r.toNumber()];
+      i--;
+    }
+
+    // deal with leading zeros
+    var j=0;
+    while(buf[j] == 0) {
+      str[i] = ALPHABET_BUF[0];
+      j++; i--;
+    }
+
+    return str.slice(i+1,str.length).toString('ascii');
+  },
+
+  decode: function(str) {
+    if(str.length == 0) return zerobuf;
+    var answer = bignum(0);
+    for(var i=0; i<str.length; i++) {
+    answer.mul(58)
+      answer = answer.mul(58);
+      answer = answer.add(ALPHABET_INV[str[i]]);
+    };
+    var i = 0;
+    while(i < str.length && str[i] == ALPHABET_ZERO) {
+      i++;
+    }
+    if(i > 0) {
+      var zb = new Buffer(i);
+      zb.fill(0);
+      if(i == str.length) return zb;
+      answer = answer.toBuffer();
+      return Buffer.concat([zb, answer], i+answer.length);
+    } else {
+      return answer.toBuffer();
+    }
+  },
+};
+
+// Base58Check Encoding
+function sha256(data) {
+  return new Buffer(crypto.createHash('sha256').update(data).digest('binary'), 'binary');
+};
+
+function doubleSHA256(data) {
+  return sha256(sha256(data));
+};
+
+var base58Check = {
+  encode: function(buf) {
+    var checkedBuf = new Buffer(buf.length + 4);
+    var hash = doubleSHA256(buf);
+    buf.copy(checkedBuf);
+    hash.copy(checkedBuf, buf.length);
+    return base58.encode(checkedBuf);
+  },
+
+  decode: function(s) {
+    var buf = base58.decode(s);
+    if (buf.length < 4) {
+      throw new Error("invalid input: too short");
+    }
+
+    var data = buf.slice(0, -4);
+    var csum = buf.slice(-4);
+
+    var hash = doubleSHA256(data);
+    var hash4 = hash.slice(0, 4);
+
+    if (csum.toString() != hash4.toString()) {
+      throw new Error("checksum mismatch");
+    }
+
+    return data;
+  },
+};
+
+// if you frequently do base58 encodings with data larger
+// than 512 bytes, you can use this method to expand the
+// size of the reusable buffer
+exports.setBuffer = function(buf) {
+  globalBuffer = buf;
+};
+
+exports.base58 = base58;
+exports.base58Check = base58Check;
+exports.encode = base58.encode;
+exports.decode = base58.decode;

lib/Bignum.js

@@ -0,0 +1,5 @@
+if (process.versions) {
+  module.exports = require('bignum');
+  return;
+}
+module.exports = require('./browser/Bignum');

lib/Block.js

@@ -3,7 +3,7 @@ var imports            = require('soop').imports();
 var util              = imports.util || require('../util');
 var Debug1            = imports.Debug1 || function() {};
 var Script            = imports.Script || require('./Script');
-var Bignum            = imports.Bignum || require('bignum');
+var Bignum            = imports.Bignum || require('./Bignum');
 var Binary            = imports.Binary || require('binary');
 var Step              = imports.Step || require('step');
 var buffertools       = imports.buffertools || require('buffertools');

lib/Curve.js

@@ -1,6 +1,6 @@
 "use strict";
 var imports = require('soop');
-var bignum = imports.bignum || require('bignum');
+var bignum = imports.bignum || require('./Bignum');
 var Point = imports.Point || require('./Point');
 
 var n = bignum.fromBuffer(new Buffer("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141", 'hex'), {size: 32});

lib/Electrum.js

@@ -2,7 +2,7 @@ var Key = require('./Key'),
   Point = require('./Point'),
   twoSha256 = require('../util').twoSha256,
   buffertools = require('buffertools'),
-  bignum = require('bignum');
+  bignum = require('./Bignum');
 
 /**
  * Pre-BIP32 Electrum public key derivation (electrum <2.0)

lib/ScriptInterpreter.js

@@ -4,7 +4,7 @@ var log = imports.log || require('../util/log');
 var util = imports.util || require('../util');
 var Opcode = imports.Opcode || require('./Opcode');
 var buffertools = imports.buffertools || require('buffertools');
-var bignum = imports.bignum || require('bignum');
+var bignum = imports.bignum || require('./Bignum');
 var Util = imports.Util || require('../util');
 var Script = require('./Script');
 var Key = require('./Key');

lib/Transaction.js

@@ -5,7 +5,7 @@ var Address = imports.Address || require('./Address');
 var Script = imports.Script || require('./Script');
 var ScriptInterpreter = imports.ScriptInterpreter || require('./ScriptInterpreter');
 var util = imports.util || require('../util');
-var bignum = imports.bignum || require('bignum');
+var bignum = imports.bignum || require('./Bignum');
 var Put = imports.Put || require('bufferput');
 var Parser = imports.Parser || require('../util/BinaryParser');
 var Step = imports.Step || require('step');

lib/TransactionBuilder.js

@@ -54,7 +54,7 @@ var imports = require('soop').imports();
 var Address = imports.Address || require('./Address');
 var Script = imports.Script || require('./Script');
 var util = imports.util || require('../util');
-var bignum = imports.bignum || require('bignum');
+var bignum = imports.bignum || require('./Bignum');
 var buffertools = imports.buffertools || require('buffertools');
 var networks = imports.networks || require('../networks');
 var WalletKey = imports.WalletKey || require('./WalletKey');

lib/browser/Key.js

@@ -1,7 +1,7 @@
 var ECKey = require('../../browser/vendor-bundle.js').ECKey;
 var SecureRandom = require('../SecureRandom');
 var Curve = require('../Curve');
-var bignum = require('bignum');
+var bignum = require('../Bignum');
 
 var Key = function() {
   this._pub = null;

lib/browser/Point.js

@@ -2,7 +2,7 @@
 
 var imports = require('soop').imports();
 var Key = imports.Key || require('./Key'); 
-var bignum = imports.bignum || require('bignum');
+var bignum = imports.bignum || require('../Bignum');
 var assert = require('assert');
 var ECPointFp = require('../../browser/vendor-bundle.js').ECPointFp;
 var ECFieldElementFp = require('../../browser/vendor-bundle.js').ECFieldElementFp;

lib/node/Point.js

@@ -1,7 +1,7 @@
 "use strict";
 
 var imports = require('soop').imports();
-var bignum = imports.bignum || require('bignum');
+var bignum = imports.bignum || require('../Bignum');
 var CPPKey = imports.CPPKey || require('bindings')('KeyModule').Key;
 var assert = require('assert');
 

package.json

@@ -54,7 +54,6 @@
   "dependencies": {
     "jssha": "=1.5.0",
     "soop": "=0.1.5",
-    "base58-native": "=0.1.3",
     "bindings": "=1.1.1",
     "bufferput": "git://github.com/bitpay/node-bufferput.git",
     "bignum": "=0.6.2",
@@ -65,7 +64,6 @@
     "browserify": "=3.40.0",
     "browser-pack": "=2.0.1",
     "commander": "=2.1.0",
-    "browserify-bignum": "git://github.com/maraoz/browserify-bignum.git",
     "browserify-buffertools": "git://github.com/maraoz/browserify-buffertools.git",
     "socks5-client": "~0.3.6",
     "brfs": "=1.0.0",

test/test.Base58.js

@@ -0,0 +1,49 @@
+var assert = require('assert');
+var base58 = require('../lib/Base58').base58;
+var base58Check = require('../lib/Base58').base58Check;
+
+var testData = [
+  ["61", "2g", "C2dGTwc"],
+  ["626262", "a3gV", "4jF5uERJAK"],
+  ["636363", "aPEr", "4mT4krqUYJ"],
+  ["73696d706c792061206c6f6e6720737472696e67", "2cFupjhnEsSn59qHXstmK2ffpLv2", "BXF1HuEUCqeVzZdrKeJjG74rjeXxqJ7dW"],
+  ["00eb15231dfceb60925886b67d065299925915aeb172c06647", "1NS17iag9jJgTHD1VXjvLCEnZuQ3rJDE9L", "13REmUhe2ckUKy1FvM7AMCdtyYq831yxM3QeyEu4"],
+  ["516b6fcd0f", "ABnLTmg", "237LSrY9NUUas"],
+  ["bf4f89001e670274dd", "3SEo3LWLoPntC", "GwDDDeduj1jpykc27e"],
+  ["572e4794", "3EFU7m", "FamExfqCeza"],
+  ["ecac89cad93923c02321", "EJDM8drfXA6uyA", "2W1Yd5Zu6WGyKVtHGMrH"],
+  ["10c8511e", "Rt5zm", "3op3iuGMmhs"],
+  ["00000000000000000000", "1111111111", "111111111146Momb"],
+  ["", "", "3QJmnh"]
+];
+
+//suite('basic');
+
+test('allData', function() {
+  base58.encodeTest = function(raw, b58str) {
+    assert.equal(base58.encode(raw), b58str);
+  };
+
+  base58.decodeTest = function(raw, b58str) {
+    assert.equal(raw.toString('hex'), base58.decode(b58str).toString('hex'));
+  };
+
+  base58Check.encodeTest = function(raw, b58str) {
+    assert.equal(base58Check.encode(raw), b58str);
+  };
+
+  base58Check.decodeTest = function(raw, b58str) {
+    assert.equal(raw.toString('hex'), base58Check.decode(b58str).toString('hex'));
+  };
+
+  testData.forEach(function(datum) {
+    var raw = new Buffer(datum[0], 'hex');
+    var b58 = datum[1];
+    var b58Check = datum[2];
+
+    base58.encodeTest(raw, b58);
+    base58.decodeTest(raw, b58);
+    base58Check.encodeTest(raw, b58Check);
+    base58Check.decodeTest(raw, b58Check);
+  });
+});

test/test.Curve.js

@@ -4,7 +4,7 @@ var chai = chai || require('chai');
 var bitcore = bitcore || require('../bitcore');
 var coinUtil = coinUtil || bitcore.util;
 var buffertools = require('buffertools');
-var bignum = require('bignum');
+var bignum = bitcore.Bignum;
 
 var should = chai.should();
 var assert = chai.assert;

test/test.Key.js

@@ -8,7 +8,7 @@ var assert = chai.assert;
 
 var Key = bitcore.Key;
 var Point = bitcore.Point;
-var bignum = require('bignum');
+var bignum = bitcore.Bignum;
 
 describe('Key', function() {
   it('should initialize the main object', function() {

test/test.Point.js

@@ -4,7 +4,7 @@ var chai = chai || require('chai');
 var bitcore = bitcore || require('../bitcore');
 var coinUtil = coinUtil || bitcore.util;
 var buffertools = require('buffertools');
-var bignum = require('bignum');
+var bignum = bitcore.Bignum;
 
 var should = chai.should();
 var assert = chai.assert;

test/test.misc.js

@@ -9,8 +9,8 @@ var should = chai.should();
 
 var testdata = testdata || require('./testdata');
 
-var bignum = bitcore.bignum;
-var base58 = bitcore.base58;
+var bignum = bitcore.Bignum;
+var base58 = bitcore.Base58;
 var base58Check = base58.base58Check;
 
 var Address = bitcore.Address;
@@ -81,7 +81,7 @@ describe('Miscelaneous stuff', function() {
   });
   // bignum
   it('should initialze the bignum object', function() {
-    should.exist(bitcore.bignum);
+    should.exist(bitcore.Bignum);
   });
   it('should create a bignum from string', function() {
     var n = bignum('9832087987979879879879879879879879879879879879');
@@ -96,7 +96,7 @@ describe('Miscelaneous stuff', function() {
 
   // base58
   it('should initialze the base58 object', function() {
-    should.exist(bitcore.base58);
+    should.exist(bitcore.Base58);
   });
   it('should obtain the same string in base58 roundtrip', function() {
     var m = 'mqqa8xSMVDyf9QxihGnPtap6Mh6qemUkcu';

util/EncodedData.js

@@ -1,5 +1,5 @@
 var imports = require('soop').imports();
-var base58 = imports.base58 || require('base58-native').base58Check;
+var base58 = imports.base58 || require('../lib/Base58').base58Check;
 
 
 // Constructor.  Takes the following forms:

util/VersionedData.js

@@ -1,5 +1,5 @@
 var imports    = require('soop').imports();
-var base58     = imports.base58 || require('base58-native').base58Check;
+var base58     = imports.base58 || require('../lib/Base58').base58Check;
 var parent     = imports.parent || require('./EncodedData');
 
 

util/util.js

@@ -1,5 +1,5 @@
 var crypto = require('crypto');
-var bignum = require('bignum');
+var bignum = require('../lib/Bignum');
 var Binary = require('binary');
 var Put = require('bufferput');
 var buffertools = require('buffertools');