architecture refactor
This commit is contained in:
Manuel Araoz
parent
6d90020205
commit
59c00da592
17 changed files with 151 additions and 47 deletions
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@ -1,341 +0,0 @@
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'use strict';
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var imports = require('soop').imports();
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var bitcore = require('bitcore');
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var BIP32 = bitcore.BIP32;
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var Address = bitcore.Address;
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var Script = bitcore.Script;
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var coinUtil = bitcore.util;
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var Transaction = bitcore.Transaction;
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var buffertools = bitcore.buffertools;
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var Storage = imports.Storage || require('./Storage');
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var storage = Storage.default();
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function PublicKeyRing(opts) {
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opts = opts || {};
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this.network = opts.networkName === 'livenet' ?
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bitcore.networks.livenet : bitcore.networks.testnet;
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this.requiredCopayers = opts.requiredCopayers || 3;
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this.totalCopayers = opts.totalCopayers || 5;
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this.id = opts.id || PublicKeyRing.getRandomId();
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this.copayersBIP32 = [];
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this.changeAddressIndex=0;
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this.addressIndex=0;
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}
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/*
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* This follow Electrum convetion, as described in
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* https://bitcointalk.org/index.php?topic=274182.0
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*
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* We should probably adopt the next standard once it's ready, as discussed in:
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* http://sourceforge.net/p/bitcoin/mailman/message/32148600/
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*
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*/
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PublicKeyRing.PublicBranch = function (index) {
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return 'm/0/'+index;
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};
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PublicKeyRing.ChangeBranch = function (index) {
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return 'm/1/'+index;
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};
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PublicKeyRing.getRandomId = function () {
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var r = buffertools.toHex(coinUtil.generateNonce());
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return r;
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};
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PublicKeyRing.decrypt = function (passphrase, encPayload) {
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console.log('[wallet.js.35] TODO READ: passphrase IGNORED');
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return encPayload;
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};
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PublicKeyRing.encrypt = function (passphrase, payload) {
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console.log('[wallet.js.92] TODO: passphrase IGNORED');
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return payload;
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};
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PublicKeyRing.fromObj = function (data) {
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if (!data.ts) {
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throw new Error('bad data format: Did you use .toObj()?');
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}
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var config = { networkName: data.networkName || 'livenet' };
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var w = new PublicKeyRing(config);
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w.id = data.id;
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w.requiredCopayers = data.requiredCopayers;
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w.totalCopayers = data.totalCopayers;
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w.addressIndex = data.addressIndex;
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w.changeAddressIndex = data.changeAddressIndex;
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w.copayersBIP32 = data.copayersExtPubKeys.map( function (pk) {
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return new BIP32(pk);
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});
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w.ts = data.ts;
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return w;
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};
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PublicKeyRing.read = function (encPayload, id, passphrase) {
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if (!encPayload)
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throw new Error('Could not find wallet data');
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var data;
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try {
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data = JSON.parse( PublicKeyRing.decrypt( passphrase, encPayload ));
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} catch (e) {
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throw new Error('error in read: '+ e.toString());
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}
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if (data.id !== id)
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throw new Error('Wrong id in data');
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return PublicKeyRing.fromObj(data);
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};
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PublicKeyRing.prototype.toObj = function() {
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return {
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id: this.id,
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networkName: this.network.name,
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requiredCopayers: this.requiredCopayers,
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totalCopayers: this.totalCopayers,
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changeAddressIndex: this.changeAddressIndex,
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addressIndex: this.addressIndex,
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copayersExtPubKeys: this.copayersBIP32.map( function (b) {
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return b.extendedPublicKeyString();
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}),
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ts: parseInt(Date.now() / 1000),
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};
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};
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PublicKeyRing.prototype.serialize = function () {
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return JSON.stringify(this.toObj());
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};
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PublicKeyRing.prototype.toStore = function (passphrase) {
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if (!this.id)
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throw new Error('wallet has no id');
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return PublicKeyRing.encrypt(passphrase,this.serialize());
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};
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PublicKeyRing.prototype.registeredCopayers = function () {
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return this.copayersBIP32.length;
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};
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PublicKeyRing.prototype.isComplete = function () {
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return this.registeredCopayers() >= this.totalCopayers;
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};
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PublicKeyRing.prototype._checkKeys = function() {
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if (!this.isComplete())
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throw new Error('dont have required keys yet');
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};
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PublicKeyRing.prototype._newExtendedPublicKey = function () {
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return new BIP32(this.network.name)
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.extendedPublicKeyString();
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};
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PublicKeyRing.prototype.addCopayer = function (newEpk) {
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if (this.isComplete())
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throw new Error('already have all required key:' + this.totalCopayers);
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if (!newEpk) {
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newEpk = this._newExtendedPublicKey();
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}
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this.copayersBIP32.forEach(function(b){
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if (b.extendedPublicKeyString() === newEpk)
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throw new Error('already have that key');
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});
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this.copayersBIP32.push(new BIP32(newEpk));
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return newEpk;
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};
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PublicKeyRing.prototype.getPubKeys = function (index, isChange) {
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this._checkKeys();
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var pubKeys = [];
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var l = this.copayersBIP32.length;
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for(var i=0; i<l; i++) {
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var path = isChange ? PublicKeyRing.ChangeBranch(index) : PublicKeyRing.PublicBranch(index);
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var bip32 = this.copayersBIP32[i].derive(path);
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pubKeys[i] = bip32.eckey.public;
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}
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return pubKeys;
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};
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PublicKeyRing.prototype._checkIndexRange = function (index, isChange) {
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if ( (isChange && index > this.changeAddressIndex) ||
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(!isChange && index > this.addressIndex)) {
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console.log('Out of bounds at getAddress: Index %d isChange: %d', index, isChange);
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throw new Error('index out of bound');
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}
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};
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PublicKeyRing.prototype.getRedeemScript = function (index, isChange) {
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this._checkIndexRange(index, isChange);
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var pubKeys = this.getPubKeys(index, isChange);
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var script = Script.createMultisig(this.requiredCopayers, pubKeys);
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return script;
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};
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PublicKeyRing.prototype.getAddress = function (index, isChange) {
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this._checkIndexRange(index, isChange);
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var script = this.getRedeemScript(index,isChange);
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var hash = coinUtil.sha256ripe160(script.getBuffer());
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var version = this.network.P2SHVersion;
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var addr = new Address(version, hash);
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return addr;
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};
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PublicKeyRing.prototype.getScriptPubKeyHex = function (index, isChange) {
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this._checkIndexRange(index, isChange);
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var addr = this.getAddress(index,isChange);
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return Script.createP2SH(addr.payload()).getBuffer().toString('hex');
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};
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//generate a new address, update index.
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PublicKeyRing.prototype.generateAddress = function(isChange) {
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var ret =
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this.getAddress(isChange ? this.changeAddressIndex : this.addressIndex, isChange);
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if (isChange)
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this.changeAddressIndex++;
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else
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this.addressIndex++;
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return ret;
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};
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PublicKeyRing.prototype.getAddresses = function() {
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var ret = [];
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for (var i=0; i<this.changeAddressIndex; i++) {
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ret.push(this.getAddress(i,true));
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}
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for (var i=0; i<this.addressIndex; i++) {
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ret.push(this.getAddress(i,false));
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}
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return ret;
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};
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PublicKeyRing.prototype.getRedeemScriptMap = function () {
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var ret = {};
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for (var i=0; i<this.changeAddressIndex; i++) {
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ret[this.getAddress(i,true)] = this.getRedeemScript(i,true).getBuffer().toString('hex');
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}
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for (var i=0; i<this.addressIndex; i++) {
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ret[this.getAddress(i)] = this.getRedeemScript(i).getBuffer().toString('hex');
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}
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return ret;
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};
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PublicKeyRing.prototype._checkInPRK = function(inPKR, ignoreId) {
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if (!ignoreId && this.id !== inPKR.id) {
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throw new Error('inPRK id mismatch');
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}
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if (this.network.name !== inPKR.network.name)
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throw new Error('inPRK network mismatch');
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if (
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this.requiredCopayers && inPKR.requiredCopayers &&
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(this.requiredCopayers !== inPKR.requiredCopayers))
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throw new Error('inPRK requiredCopayers mismatch');
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if (
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this.totalCopayers && inPKR.totalCopayers &&
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(this.totalCopayers !== inPKR.totalCopayers))
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throw new Error('inPRK requiredCopayers mismatch');
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};
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PublicKeyRing.prototype._mergeIndexes = function(inPKR) {
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var hasChanged = false;
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// Indexes
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if (inPKR.changeAddressIndex > this.changeAddressIndex) {
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this.changeAddressIndex = inPKR.changeAddressIndex;
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hasChanged = true;
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}
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if (inPKR.addressIndex > this.addressIndex) {
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this.addressIndex = inPKR.addressIndex;
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hasChanged = true;
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}
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return hasChanged;
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};
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PublicKeyRing.prototype._mergePubkeys = function(inPKR) {
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var self = this;
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var hasChanged = false;
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var l= self.copayersBIP32.length;
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inPKR.copayersBIP32.forEach( function(b) {
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var haveIt = false;
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var epk = b.extendedPublicKeyString();
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for(var j=0; j<l; j++) {
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if (self.copayersBIP32[j].extendedPublicKeyString() === epk) {
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haveIt=true;
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break;
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}
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}
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if (!haveIt) {
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if (self.isComplete()) {
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console.log('[PublicKeyRing.js.318] REPEATED KEY', epk); //TODO
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throw new Error('trying to add more pubkeys, when PKR isComplete at merge');
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}
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self.copayersBIP32.push(new BIP32(epk));
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hasChanged=true;
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}
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});
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return hasChanged;
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};
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PublicKeyRing.prototype.merge = function(inPKR, ignoreId) {
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var hasChanged = false;
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this._checkInPRK(inPKR, ignoreId);
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if (this._mergeIndexes(inPKR))
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hasChanged = true;
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if (this._mergePubkeys(inPKR))
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hasChanged = true;
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return hasChanged;
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};
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module.exports = require('soop')(PublicKeyRing);
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