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get Script Address for Wallet

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This commit is contained in:
Matias Alejo Garcia 2014-03-26 22:00:42 -03:00
commit b57c1544bb
2 changed files with 78 additions and 16 deletions
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67
js/models/wallet.js
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@ -2,6 +2,8 @@
var imports = require('soop').imports();
var bitcore = require('bitcore');
var BIP32 = bitcore.BIP32;
var Address = bitcore.Address;
var Script = bitcore.Script;
var coinUtil= bitcore.util;
var Storage = imports.Storage || require('./Storage');
@ -24,7 +26,7 @@ function Wallet(opts) {
this.network = opts.network === 'livenet' ?
bitcore.networks.livenet : bitcore.networks.testnet;
this.neededCosigners = opts.neededCosigners || 3;
this.requiredCosigners = opts.neededCosigners || 3;
this.totalCosigners = opts.totalCosigners || 5;
this.id = opts.id || Wallet.getRandomId();
@ -32,6 +34,9 @@ function Wallet(opts) {
this.dirty = 1;
this.cosignersWallets = [];
this.bip32 = new BIP32(opts.bytes || this.network.name);
this.changeAddress
}
@ -70,7 +75,7 @@ Wallet.read = function (id, passphrase) {
var w = new Wallet(config);
w.neededCosigners = data.neededCosigners;
w.requiredCosigners = data.neededCosigners;
w.totalCosigners = data.totalCosigners;
w.cosignersWallets = data.cosignersExtPubKeys.map( function (pk) {
return new Wallet({bytes:pk, network: w.network.name});
@ -85,7 +90,7 @@ Wallet.prototype.serialize = function () {
return JSON.stringify({
id: this.id,
network: this.network.name,
neededCosigners: this.neededCosigners,
requiredCosigners: this.neededCosigners,
totalCosigners: this.totalCosigners,
cosignersExtPubKeys: this.cosignersWallets.map( function (b) {
return b.getExtendedPubKey();
@ -127,11 +132,22 @@ Wallet.prototype.getExtendedPubKey = function () {
};
Wallet.prototype.haveAllRequiredPubKeys = function () {
return this.registeredCosigners() === this.totalCosigners;
};
Wallet.prototype._checkKeys = function() {
if (!this.haveAllRequiredPubKeys())
throw new Error('dont have required keys yet');
};
// should receive an array also?
Wallet.prototype.addCosignerExtendedPubKey = function (newEpk) {
if (this.haveAllNeededPubKeys())
throw new Error('already have all needed key:' + this.totalCosigners);
if (this.haveAllRequiredPubKeys())
throw new Error('already have all required key:' + this.totalCosigners);
if (this.getExtendedPubKey() === newEpk)
throw new Error('already have that key (self kehy)');
@ -147,18 +163,47 @@ Wallet.prototype.addCosignerExtendedPubKey = function (newEpk) {
};
Wallet.prototype.haveAllNeededPubKeys = function () {
return this.registeredCosigners() === this.totalCosigners;
Wallet.prototype.getPubKey = function (index,isChange) {
var path = (isChange ? CHANGE_BRANCH : PUBLIC_BRANCH) + index;
var bip32 = this.bip32.derive(path);
var pub = bip32.eckey.public;
return pub;
};
Wallet.prototype.getChangeAddress = function (index) {
Wallet.prototype.getAddress = function (index, isChange) {
this._checkKeys();
//index can be 0, 1, 2, etc.
if (! this.haveAllNeededPubKeys() )
throw new Error('cosigners pub key missing');
var pubkey = [];
var l = this.cosignersWallets.length;
for(var i=0; i<l; i++) {
pubkey[i] = this.cosignersWallets[i].getPubKey(index, isChange);
}
var version = this.network.addressScript;
var script = Script.createMultisig(this.requiredCosigners, pubkey);
var buf = script.buffer;
var hash = coinUtil.sha256ripe160(buf);
var addr = new Address(version, hash);
var addrStr = addr.as('base58');
return addrStr;
};
Wallet.prototype.createAddress = function(isChange) {
var ret =
this.getAddress(isChange ? this.changeAddressIndex : this.addressIndex, isChange);
if (isChange)
this.addressIndex++;
else
this.changeAddressIndex++;
return ret;
};
// Input: Bitcore's Transaction, sign with ownPK
// return partially signed or fully signed tx