add network.js and testnet support. see #40.

lib/bcoin.js

@@ -14,3 +14,5 @@ bcoin.wallet = require('./bcoin/wallet');
 bcoin.peer = require('./bcoin/peer');
 bcoin.pool = require('./bcoin/pool');
 bcoin.hd = require('./bcoin/hd');
+
+bcoin.protocol.network.set(process.env.BCOIN_NETWORK || 'main');

lib/bcoin/chain.js

@@ -3,7 +3,7 @@ var EventEmitter = require('events').EventEmitter;
 
 var bcoin = require('../bcoin');
 var constants = bcoin.protocol.constants;
-var preload = bcoin.protocol.preload;
+var network = bcoin.protocol.network;
 var utils = bcoin.utils;
 var assert = utils.assert;
 
@@ -38,6 +38,8 @@ function Chain(options) {
   };
   this.request = new utils.RequestCache();
 
+  var preload = network.preload;
+
   // Start from the genesis block
   // if we're a full node.
   if (this.options.fullNode) {
@@ -516,6 +518,7 @@ Chain.prototype.toJSON = function toJSON() {
   return {
     v: 1,
     type: 'chain',
+    network: network.type,
     hashes: first.hashes.concat(last.hashes),
     ts: first.ts.concat(last.ts),
     heights: first.heights.concat(last.heights)
@@ -525,6 +528,7 @@ Chain.prototype.toJSON = function toJSON() {
 Chain.prototype.fromJSON = function fromJSON(json) {
   assert.equal(json.v, 1);
   assert.equal(json.type, 'chain');
+  assert.equal(json.network, network.type);
   this.index.hashes = json.hashes.slice();
   this.index.ts = json.ts.slice();
   this.index.heights = json.heights.slice();
@@ -534,7 +538,7 @@ Chain.prototype.fromJSON = function fromJSON(json) {
     this.index.bloom = new bcoin.bloom(28 * 1024 * 1024, 16, 0xdeadbeef);
 
   if (this.index.hashes.length === 0)
-    this.add(new bcoin.block(constants.genesis, 'block'));
+    this.add(new bcoin.block(network.genesis, 'block'));
 
   for (var i = 0; i < this.index.hashes.length; i++) {
     this.index.bloom.add(this.index.hashes[i], 'hex');

lib/bcoin/hd.js

@@ -56,6 +56,7 @@ var bn = require('bn.js');
 var elliptic = require('elliptic');
 var utils = bcoin.utils;
 var assert = utils.assert;
+var network = bcoin.protocol.network;
 
 var EventEmitter = require('events').EventEmitter;
 
@@ -112,11 +113,6 @@ HDSeed._mnemonic = function(entropy) {
  * HD Keys
  */
 
-var VERSION = {
-  xpubkey: 0x0488b21e,
-  xprivkey: 0x0488ade4
-};
-
 var HARDENED = 0x80000000;
 var MAX_INDEX = 2 * HARDENED;
 var MIN_ENTROPY = 128 / 8;
@@ -155,7 +151,7 @@ function HDPriv(options) {
     data = options;
   }
 
-  data = this._normalize(data, VERSION.xprivkey);
+  data = this._normalize(data, network.prefixes.xprivkey);
 
   this.data = data;
 
@@ -165,7 +161,7 @@ function HDPriv(options) {
 HDPriv.prototype._normalize = function(data, version) {
   var b;
 
-  data.version = version || VERSION.xprivkey;
+  data.version = version || network.prefixes.xprivkey;
   data.version = +data.version;
 
   data.depth = +data.depth;
@@ -219,7 +215,7 @@ HDPriv.prototype._seed = function(seed) {
   var hash = sha512hmac(seed, 'Bitcoin seed');
 
   return {
-    // version: VERSION.xprivkey,
+    // version: network.prefixes.xprivkey,
     depth: 0,
     parentFingerPrint: 0,
     childIndex: 0,
@@ -413,7 +409,7 @@ function HDPub(options) {
   else
     data = options;
 
-  data = this._normalize(data, VERSION.xpubkey);
+  data = this._normalize(data, network.prefixes.xpubkey);
 
   this.data = data;
 
@@ -518,7 +514,7 @@ HDPub.prototype.derive = function(index, hard) {
   var publicKey = bcoin.ecdsa.keyFromPublic(pubkeyPoint).getPublic(true, 'array');
 
   return new HDPub({
-    // version: VERSION.xpubkey,
+    // version: network.prefixes.xpubkey,
     depth: this.depth + 1,
     parentFingerPrint: this.fingerPrint,
     childIndex: index,

lib/bcoin/protocol/constants.js

@@ -3,29 +3,6 @@ var utils = bcoin.utils;
 
 exports.minVersion = 70001;
 exports.version = 70002;
-exports.magic = 0xd9b4bef9;
-exports.genesis = {
-  version: 1,
-  prevBlock: [ 0, 0, 0, 0, 0, 0, 0, 0,
-               0, 0, 0, 0, 0, 0, 0, 0,
-               0, 0, 0, 0, 0, 0, 0, 0,
-               0, 0, 0, 0, 0, 0, 0, 0 ],
-  merkleRoot: utils.toArray(
-    '4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b',
-    'hex'
-  ).reverse(),
-  ts: 1231006505,
-  bits: 0x1d00ffff,
-  nonce: 2083236893
-};
-
-// address versions
-exports.addr = {
-  normal: 0,
-  p2pkh: 0,
-  multisig: 0,
-  p2sh: 5
-};
 
 // version - services field
 exports.services = {

lib/bcoin/protocol/framer.js

@@ -1,4 +1,5 @@
 var bcoin = require('../../bcoin');
+var network = require('./network');
 var constants = require('./constants');
 var utils = bcoin.utils;
 var assert = utils.assert;
@@ -27,7 +28,7 @@ Framer.prototype.header = function header(cmd, payload) {
   var h = new Array(24);
 
   // Magic value
-  writeU32(h, constants.magic, 0);
+  writeU32(h, network.magic, 0);
 
   // Command
   var len = writeAscii(h, cmd, 4);

lib/bcoin/protocol/index.js

@@ -3,4 +3,4 @@ var protocol = exports;
 protocol.constants = require('./constants');
 protocol.framer = require('./framer');
 protocol.parser = require('./parser');
-protocol.preload = require('./preload');
+protocol.network = require('./network');

lib/bcoin/protocol/network.js

@@ -0,0 +1,178 @@
+var bcoin = require('../../bcoin');
+var utils = bcoin.utils;
+
+/**
+ * Network
+ */
+
+var network = exports;
+
+network.set = function(type) {
+  var net = network[type];
+  utils.merge(network, net);
+};
+
+/**
+ * Main
+ */
+
+var main = network.main = {};
+
+main.prefixes = {
+  pubkey: 0,
+  script: 5,
+  privkey: 128,
+  xpubkey: 0x0488b21e,
+  xprivkey: 0x0488ade4
+};
+
+utils.merge(main.prefixes, {
+  normal: main.prefixes.pubkey,
+  p2pkh: main.prefixes.pubkey,
+  multisig: main.prefixes.pubkey,
+  p2sh: main.prefixes.script
+});
+
+main.type = 'main';
+
+main.seeds = [
+  'seed.bitcoin.sipa.be', // Pieter Wuille
+  'dnsseed.bluematt.me', // Matt Corallo
+  'dnsseed.bitcoin.dashjr.org', // Luke Dashjr
+  'seed.bitcoinstats.com', // Christian Decker
+  'bitseed.xf2.org', // Jeff Garzik
+  'seed.bitcoin.jonasschnelli.ch' // Jonas Schnelli
+];
+
+main.port = 8333;
+
+main.alertKey = utils.toArray(''
+  + '04fc9702847840aaf195de8442ebecedf5b095c'
+  + 'dbb9bc716bda9110971b28a49e0ead8564ff0db'
+  + '22209e0374782c093bb899692d524e9d6a6956e'
+  + '7c5ecbcd68284',
+  'hex');
+
+main.checkpoints = [
+  { height: 11111,  hash: '0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d' },
+  { height: 33333,  hash: '000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6' },
+  { height: 74000,  hash: '0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20' },
+  { height: 105000, hash: '00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97' },
+  { height: 134444, hash: '00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe' },
+  { height: 168000, hash: '000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763' },
+  { height: 193000, hash: '000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317' },
+  { height: 210000, hash: '000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e' },
+  { height: 216116, hash: '00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e' },
+  { height: 225430, hash: '00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932' },
+  { height: 250000, hash: '000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214' },
+  { height: 279000, hash: '0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40' },
+  { height: 295000, hash: '00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983' }
+];
+
+main.checkpoints.tsLastCheckpoint = 1397080064;
+main.checkpoints.txsLastCheckpoint = 36544669;
+main.checkpoints.txsPerDay = 60000.0;
+
+// http://blockexplorer.com/b/0
+// http://blockexplorer.com/rawblock/000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
+main.genesis = {
+  version: 1,
+  _hash: utils.toArray(
+    '000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f',
+    'hex'
+  ).reverse(),
+  prevBlock: [ 0, 0, 0, 0, 0, 0, 0, 0,
+               0, 0, 0, 0, 0, 0, 0, 0,
+               0, 0, 0, 0, 0, 0, 0, 0,
+               0, 0, 0, 0, 0, 0, 0, 0 ],
+  merkleRoot: utils.toArray(
+    '4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b',
+    'hex'
+  ).reverse(),
+  ts: 1231006505,
+  bits: 0x1d00ffff,
+  nonce: 2083236893
+};
+
+main.magic = 0xd9b4bef9;
+
+main.preload = require('./preload');
+
+/**
+ * Testnet (v3)
+ * https://en.bitcoin.it/wiki/Testnet
+ */
+
+var testnet = network.testnet = {};
+
+testnet.type = 'testnet';
+
+testnet.prefixes = {
+  pubkey: 111,
+  script: 196,
+  privkey: 239,
+  xpubkey: 0x043587cf,
+  xprivkey: 0x04358394
+};
+
+utils.merge(testnet.prefixes, {
+  normal: testnet.prefixes.pubkey,
+  p2pkh: testnet.prefixes.pubkey,
+  multisig: testnet.prefixes.pubkey,
+  p2sh: testnet.prefixes.script
+});
+
+testnet.seeds = [
+ 'testnet-seed.alexykot.me',
+ 'testnet-seed.bitcoin.petertodd.org',
+ 'testnet-seed.bluematt.me',
+ 'testnet-seed.bitcoin.schildbach.de'
+];
+
+testnet.port = 18333;
+
+testnet.alertKey = utils.toArray(''
+  + '04302390343f91cc401d56d68b123028bf52e5f'
+  + 'ca1939df127f63c6467cdf9c8e2c14b61104cf8'
+  + '17d0b780da337893ecc4aaff1309e536162dabb'
+  + 'db45200ca2b0a',
+  'hex');
+
+testnet.checkpoints = [
+  { height: 546, hash: '000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70' }
+];
+
+testnet.checkpoints.tsLastCheckpoint = 1338180505;
+testnet.checkpoints.txsLastCheckpoint = 16341;
+testnet.checkpoints.txsPerDay = 300;
+
+// http://blockexplorer.com/testnet/b/0
+// http://blockexplorer.com/testnet/rawblock/000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943
+testnet.genesis =  {
+  version: 1,
+  _hash: utils.toArray(
+    '000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943',
+    'hex'
+  ).reverse(),
+  prevBlock: [ 0, 0, 0, 0, 0, 0, 0, 0,
+               0, 0, 0, 0, 0, 0, 0, 0,
+               0, 0, 0, 0, 0, 0, 0, 0,
+               0, 0, 0, 0, 0, 0, 0, 0 ],
+  merkleRoot: utils.toArray(
+    '4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b',
+    'hex'
+  ).reverse(),
+  ts: 1296688602,
+  bits: 0x1d00ffff,
+  nonce: 414098458
+};
+
+testnet.magic = 0x0709110b;
+
+testnet.preload = {
+  'v': 1,
+  'type': 'chain',
+  'hashes': [utils.toHex(testnet.genesis._hash)],
+  'ts': [testnet.genesis.ts],
+  'heights': [0]
+};

lib/bcoin/protocol/parser.js

@@ -6,6 +6,7 @@ var bcoin = require('../../bcoin');
 var utils = bcoin.utils;
 var assert = utils.assert;
 var constants = require('./constants');
+var network = require('./network');
 
 var readU32 = utils.readU32;
 var readU64 = utils.readU64;
@@ -71,7 +72,7 @@ Parser.prototype.parse = function parse(chunk) {
 
 Parser.prototype.parseHeader = function parseHeader(h) {
   var magic = readU32(h, 0);
-  if (magic !== constants.magic) {
+  if (magic !== network.magic) {
     return this._error('Invalid magic value: ' + magic.toString(16));
   }
 

lib/bcoin/utils.js

@@ -2,6 +2,7 @@ var utils = exports;
 
 var bn = require('bn.js');
 var hash = require('hash.js');
+var util = require('util');
 
 function toArray(msg, enc) {
   if (Array.isArray(msg))
@@ -491,6 +492,41 @@ utils.toKeyArray = function(msg) {
   return utils.fromBase58(msg);
 };
 
-utils.debug = function(msg) {
-  console.log('\x1b[31m' + msg + '\x1b[m');
+utils.inspect = function(obj) {
+  return typeof obj !== 'string'
+    ? util.inspect(obj, null, 20, true)
+    : obj;
+};
+
+utils.print = function(msg) {
+  return typeof msg === 'object'
+    ? process.stdout.write(utils.inspect(msg) + '\n')
+    : console.log.apply(console, arguments);
+};
+
+utils.debug = function() {
+  var args = Array.prototype.slice.call(arguments);
+  args[0] = '\x1b[31m' + args[0] + '\x1b[m';
+  return utils.print.apply(null, args);
+};
+
+utils.merge = function(target) {
+  var args = Array.prototype.slice.call(arguments, 1);
+  args.forEach(function(obj) {
+    Object.keys(obj).forEach(function(key) {
+      target[key] = obj[key];
+    });
+  });
+  return target;
+};
+
+utils.fromBTC = function(btc) {
+  var satoshi = new bn(+btc || 0);
+  satoshi.imuln(100000000);
+  return satoshi;
+};
+
+utils.ntoBTC = function(satoshi) {
+  satoshi = new bn(Math.floor(+satoshi || 0).toString(16), 16);
+  return bcoin.utils.toBTC(satoshi);
 };

lib/bcoin/wallet.js

@@ -6,6 +6,7 @@ var EventEmitter = require('events').EventEmitter;
 var utils = bcoin.utils;
 var assert = utils.assert;
 var constants = bcoin.protocol.constants;
+var network = bcoin.protocol.network;
 
 function Wallet(options, passphrase) {
   if (!(this instanceof Wallet))
@@ -166,7 +167,7 @@ Wallet.prototype.getPrivateKey = function getPrivateKey(enc) {
 
   if (enc === 'base58') {
     // We'll be using ncompressed public key as an address
-    var arr = [ 128 ];
+    var arr = [ network.prefixes.privkey ];
 
     // 0-pad key
     while (arr.length + priv.length < 33)
@@ -258,7 +259,7 @@ Wallet.prototype.getAddress = function getAddress() {
 Wallet.hash2addr = function hash2addr(hash, version) {
   hash = utils.toArray(hash, 'hex');
 
-  version = constants.addr[version || 'normal'];
+  version = network.prefixes[version || 'normal'];
   hash = [ version ].concat(hash);
 
   var addr = hash.concat(utils.checksum(hash));
@@ -269,7 +270,7 @@ Wallet.addr2hash = function addr2hash(addr, version) {
   if (!Array.isArray(addr))
     addr = utils.fromBase58(addr);
 
-  version = constants.addr[version || 'normal'];
+  version = network.prefixes[version || 'normal'];
 
   if (addr.length !== 25)
     return [];
@@ -417,6 +418,7 @@ Wallet.prototype.toJSON = function toJSON() {
   return {
     v: 1,
     type: 'wallet',
+    network: network.type,
     pub: this.getOwnPublicKey('base58'),
     priv: this.getPrivateKey('base58'),
     tx: this.tx.toJSON(),
@@ -432,6 +434,7 @@ Wallet.prototype.toJSON = function toJSON() {
 Wallet.fromJSON = function fromJSON(json) {
   assert.equal(json.v, 1);
   assert.equal(json.type, 'wallet');
+  assert.equal(json.network, network.type);
 
   var priv;
   var pub;
@@ -440,7 +443,7 @@ Wallet.fromJSON = function fromJSON(json) {
   if (json.priv) {
     var key = bcoin.utils.fromBase58(json.priv);
     assert(utils.isEqual(key.slice(-4), utils.checksum(key.slice(0, -4))));
-    assert.equal(key[0], 128);
+    assert.equal(key[0], network.prefixes.privkey);
 
     key = key.slice(0, -4);
     if (key.length === 34) {