1642 lines
47 KiB
JavaScript
1642 lines
47 KiB
JavaScript
'use strict';
|
|
var _ = require('lodash');
|
|
var $ = require('preconditions').singleton();
|
|
var async = require('async');
|
|
var log = require('npmlog');
|
|
log.debug = log.verbose;
|
|
log.disableColor();
|
|
var EmailValidator = require('email-validator');
|
|
|
|
var WalletUtils = require('bitcore-wallet-utils');
|
|
var Bitcore = WalletUtils.Bitcore;
|
|
var PublicKey = Bitcore.PublicKey;
|
|
var HDPublicKey = Bitcore.HDPublicKey;
|
|
var Address = Bitcore.Address;
|
|
|
|
var ClientError = require('./clienterror');
|
|
var Utils = require('./utils');
|
|
var Lock = require('./lock');
|
|
var Storage = require('./storage');
|
|
var MessageBroker = require('./messagebroker');
|
|
var BlockchainExplorer = require('./blockchainexplorer');
|
|
|
|
var Model = require('./model');
|
|
var Wallet = Model.Wallet;
|
|
|
|
var initialized = false;
|
|
|
|
var lock;
|
|
var storage;
|
|
var blockchainExplorer;
|
|
var blockchainExplorerOpts;
|
|
var messageBroker;
|
|
|
|
|
|
|
|
/**
|
|
* Creates an instance of the Bitcore Wallet Service.
|
|
* @constructor
|
|
*/
|
|
function WalletService() {
|
|
if (!initialized)
|
|
throw new Error('Server not initialized');
|
|
|
|
this.lock = lock;
|
|
this.storage = storage;
|
|
this.blockchainExplorer = blockchainExplorer;
|
|
this.blockchainExplorerOpts = blockchainExplorerOpts;
|
|
this.messageBroker = messageBroker;
|
|
this.notifyTicker = 0;
|
|
};
|
|
|
|
|
|
// Time after which a Tx proposal can be erased by any copayer. in seconds
|
|
WalletService.deleteLockTime = 24 * 3600;
|
|
|
|
// Allowed consecutive txp rejections before backoff is applied.
|
|
WalletService.backoffOffset = 3;
|
|
|
|
// Time a copayer need to wait to create a new TX after her tx previous proposal we rejected. (incremental). in Minutes.
|
|
WalletService.backoffTimeMinutes = 2;
|
|
|
|
// Fund scanning parameters
|
|
WalletService.scanConfig = {
|
|
SCAN_WINDOW: 20,
|
|
DERIVATION_DELAY: 10, // in milliseconds
|
|
};
|
|
|
|
/**
|
|
* Initializes global settings for all instances.
|
|
* @param {Object} opts
|
|
* @param {Storage} [opts.storage] - The storage provider.
|
|
* @param {Storage} [opts.blockchainExplorer] - The blockchainExporer provider.
|
|
* @param {Callback} cb
|
|
*/
|
|
WalletService.initialize = function(opts, cb) {
|
|
$.shouldBeFunction(cb);
|
|
|
|
opts = opts || {};
|
|
lock = opts.lock || new Lock(opts.lockOpts);
|
|
blockchainExplorer = opts.blockchainExplorer;
|
|
blockchainExplorerOpts = opts.blockchainExplorerOpts;
|
|
|
|
function initStorage(cb) {
|
|
if (opts.storage) {
|
|
storage = opts.storage;
|
|
return cb();
|
|
} else {
|
|
var newStorage = new Storage();
|
|
newStorage.connect(opts.storageOpts, function(err) {
|
|
if (err) return cb(err);
|
|
storage = newStorage;
|
|
return cb();
|
|
});
|
|
}
|
|
};
|
|
|
|
function initMessageBroker(cb) {
|
|
if (opts.messageBroker) {
|
|
messageBroker = opts.messageBroker;
|
|
} else {
|
|
messageBroker = new MessageBroker(opts.messageBrokerOpts);
|
|
}
|
|
return cb();
|
|
};
|
|
|
|
async.series([
|
|
|
|
function(next) {
|
|
initStorage(next);
|
|
},
|
|
function(next) {
|
|
initMessageBroker(next);
|
|
},
|
|
], function(err) {
|
|
if (err) {
|
|
log.error('Could not initialize', err);
|
|
throw err;
|
|
}
|
|
initialized = true;
|
|
return cb();
|
|
});
|
|
};
|
|
|
|
|
|
WalletService.shutDown = function(cb) {
|
|
if (!initialized) return cb();
|
|
storage.disconnect(function(err) {
|
|
if (err) return cb(err);
|
|
initialized = false;
|
|
return cb();
|
|
});
|
|
};
|
|
|
|
WalletService.getInstance = function() {
|
|
return new WalletService();
|
|
};
|
|
|
|
/**
|
|
* Gets an instance of the server after authenticating the copayer.
|
|
* @param {Object} opts
|
|
* @param {string} opts.copayerId - The copayer id making the request.
|
|
* @param {string} opts.message - The contents of the request to be signed.
|
|
* @param {string} opts.signature - Signature of message to be verified using the copayer's requestPubKey
|
|
*/
|
|
WalletService.getInstanceWithAuth = function(opts, cb) {
|
|
|
|
if (!Utils.checkRequired(opts, ['copayerId', 'message', 'signature']))
|
|
return cb(new ClientError('Required argument missing'));
|
|
|
|
var server = new WalletService();
|
|
server.storage.fetchCopayerLookup(opts.copayerId, function(err, copayer) {
|
|
if (err) return cb(err);
|
|
if (!copayer) return cb(new ClientError('NOTAUTHORIZED', 'Copayer not found'));
|
|
|
|
var isValid = server._verifySignature(opts.message, opts.signature, copayer.requestPubKey);
|
|
if (!isValid)
|
|
return cb(new ClientError('NOTAUTHORIZED', 'Invalid signature'));
|
|
|
|
server.copayerId = opts.copayerId;
|
|
server.walletId = copayer.walletId;
|
|
return cb(null, server);
|
|
});
|
|
};
|
|
|
|
WalletService.prototype._runLocked = function(cb, task) {
|
|
$.checkState(this.walletId);
|
|
this.lock.runLocked(this.walletId, cb, task);
|
|
};
|
|
|
|
|
|
/**
|
|
* Creates a new wallet.
|
|
* @param {Object} opts
|
|
* @param {string} opts.id - The wallet id.
|
|
* @param {string} opts.name - The wallet name.
|
|
* @param {number} opts.m - Required copayers.
|
|
* @param {number} opts.n - Total copayers.
|
|
* @param {string} opts.pubKey - Public key to verify copayers joining have access to the wallet secret.
|
|
* @param {string} [opts.network = 'livenet'] - The Bitcoin network for this wallet.
|
|
*/
|
|
WalletService.prototype.createWallet = function(opts, cb) {
|
|
var self = this,
|
|
pubKey;
|
|
|
|
if (!Utils.checkRequired(opts, ['name', 'm', 'n', 'pubKey']))
|
|
return cb(new ClientError('Required argument missing'));
|
|
|
|
if (_.isEmpty(opts.name)) return cb(new ClientError('Invalid wallet name'));
|
|
if (!Wallet.verifyCopayerLimits(opts.m, opts.n))
|
|
return cb(new ClientError('Invalid combination of required copayers / total copayers'));
|
|
|
|
var network = opts.network || 'livenet';
|
|
if (network != 'livenet' && network != 'testnet')
|
|
return cb(new ClientError('Invalid network'));
|
|
|
|
try {
|
|
pubKey = new PublicKey.fromString(opts.pubKey);
|
|
} catch (ex) {
|
|
return cb(new ClientError('Invalid public key'));
|
|
};
|
|
|
|
var newWallet;
|
|
async.series([
|
|
|
|
function(acb) {
|
|
if (!opts.id)
|
|
return acb();
|
|
|
|
self.storage.fetchWallet(opts.id, function(err, wallet) {
|
|
if (wallet) return acb(new ClientError('WEXISTS', 'Wallet already exists'));
|
|
return acb(err);
|
|
});
|
|
},
|
|
function(acb) {
|
|
var wallet = Wallet.create({
|
|
name: opts.name,
|
|
m: opts.m,
|
|
n: opts.n,
|
|
network: network,
|
|
pubKey: pubKey.toString(),
|
|
id: opts.id,
|
|
});
|
|
self.storage.storeWallet(wallet, function(err) {
|
|
log.debug('Wallet created', wallet.id, network);
|
|
newWallet = wallet;
|
|
return acb(err);
|
|
});
|
|
}
|
|
], function(err) {
|
|
return cb(err, newWallet ? newWallet.id : null);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Retrieves a wallet from storage.
|
|
* @param {Object} opts
|
|
* @returns {Object} wallet
|
|
*/
|
|
WalletService.prototype.getWallet = function(opts, cb) {
|
|
var self = this;
|
|
|
|
self.storage.fetchWallet(self.walletId, function(err, wallet) {
|
|
if (err) return cb(err);
|
|
if (!wallet) return cb(new ClientError('Wallet not found'));
|
|
return cb(null, wallet);
|
|
});
|
|
};
|
|
|
|
|
|
/**
|
|
* Replace temporary request key
|
|
* @param {Object} opts
|
|
* @param {string} opts.name - The copayer name.
|
|
* @param {string} opts.xPubKey - Extended Public Key for this copayer.
|
|
* @param {string} opts.requestPubKey - Public Key used to check requests from this copayer.
|
|
* @param {string} opts.copayerSignature - S(name|xPubKey|requestPubKey). Used by other copayers to verify that the copayer joining knows the wallet secret.
|
|
*/
|
|
WalletService.prototype.replaceTemporaryRequestKey = function(opts, cb) {
|
|
var self = this;
|
|
|
|
if (!Utils.checkRequired(opts, ['name', 'xPubKey', 'requestPubKey', 'copayerSignature']))
|
|
return cb(new ClientError('Required argument missing'));
|
|
|
|
|
|
if (_.isEmpty(opts.name))
|
|
return cb(new ClientError('Invalid copayer name'));
|
|
|
|
|
|
if (opts.isTemporaryRequestKey)
|
|
return cb(new ClientError('Bad arguments'));
|
|
|
|
self._runLocked(cb, function(cb) {
|
|
self.storage.fetchWallet(self.walletId, function(err, wallet) {
|
|
if (err) return cb(err);
|
|
|
|
if (!wallet) return cb(new ClientError('Wallet not found'));
|
|
var hash = WalletUtils.getCopayerHash(opts.name, opts.xPubKey, opts.requestPubKey);
|
|
if (!self._verifySignature(hash, opts.copayerSignature, wallet.pubKey)) {
|
|
return cb(new ClientError());
|
|
}
|
|
|
|
var oldCopayerData = _.find(wallet.copayers, {
|
|
id: self.copayerId
|
|
});
|
|
$.checkState(oldCopayerData);
|
|
|
|
if (oldCopayerData.xPubKey !== opts.xPubKey || !oldCopayerData.isTemporaryRequestKey)
|
|
return cb(new ClientError('CDATAMISMATCH', 'Copayer data mismatch'));
|
|
|
|
if (wallet.copayers.length != wallet.n)
|
|
return cb(new ClientError('WNOTFULL', 'Replace only works on full wallets'));
|
|
|
|
wallet.updateCopayerRequestKey(self.copayerId, opts.requestPubKey, opts.copayerSignature);
|
|
|
|
self.storage.storeWalletAndUpdateCopayersLookup(wallet, function(err) {
|
|
if (err) return cb(err);
|
|
|
|
self._notify('CopayerUpdated', {
|
|
walletId: opts.walletId,
|
|
copayerId: self.copayerId,
|
|
copayerName: opts.name,
|
|
}, function() {
|
|
return cb(null, {
|
|
copayerId: self.copayerId,
|
|
wallet: wallet
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Verifies a signature
|
|
* @param text
|
|
* @param signature
|
|
* @param pubKey
|
|
*/
|
|
WalletService.prototype._verifySignature = function(text, signature, pubKey) {
|
|
return WalletUtils.verifyMessage(text, signature, pubKey);
|
|
};
|
|
|
|
/**
|
|
* _notify
|
|
*
|
|
* @param {String} type
|
|
* @param {Object} data
|
|
* @param {Object} opts
|
|
* @param {Boolean} opts.isGlobal - If true, the notification is not issued on behalf of any particular copayer (defaults to false)
|
|
*/
|
|
WalletService.prototype._notify = function(type, data, opts, cb) {
|
|
var self = this;
|
|
|
|
if (_.isFunction(opts)) {
|
|
cb = opts;
|
|
opts = {};
|
|
}
|
|
opts = opts || {};
|
|
|
|
log.debug('Notification', type, data);
|
|
|
|
cb = cb || function() {};
|
|
|
|
var walletId = self.walletId || data.walletId;
|
|
var copayerId = self.copayerId || data.copayerId;
|
|
|
|
$.checkState(walletId);
|
|
|
|
var notification = Model.Notification.create({
|
|
type: type,
|
|
data: data,
|
|
ticker: this.notifyTicker++,
|
|
creatorId: opts.isGlobal ? null : copayerId,
|
|
walletId: walletId,
|
|
});
|
|
|
|
this.storage.storeNotification(walletId, notification, function() {
|
|
self.messageBroker.send(notification);
|
|
return cb();
|
|
});
|
|
};
|
|
|
|
|
|
/**
|
|
* Joins a wallet in creation.
|
|
* @param {Object} opts
|
|
* @param {string} opts.walletId - The wallet id.
|
|
* @param {string} opts.name - The copayer name.
|
|
* @param {string} opts.xPubKey - Extended Public Key for this copayer.
|
|
* @param {string} opts.requestPubKey - Public Key used to check requests from this copayer.
|
|
* @param {string} opts.copayerSignature - S(name|xPubKey|requestPubKey). Used by other copayers to verify the that the copayer joining knows the wallet secret.
|
|
* @param {string} opts.isTemporaryRequestKey - requestPubKey will be marked as 'temporary' (only used for Copay migration)
|
|
*/
|
|
WalletService.prototype.joinWallet = function(opts, cb) {
|
|
var self = this;
|
|
|
|
if (!Utils.checkRequired(opts, ['walletId', 'name', 'xPubKey', 'requestPubKey', 'copayerSignature']))
|
|
return cb(new ClientError('Required argument missing'));
|
|
|
|
if (_.isEmpty(opts.name))
|
|
return cb(new ClientError('Invalid copayer name'));
|
|
|
|
self.walletId = opts.walletId;
|
|
self._runLocked(cb, function(cb) {
|
|
self.storage.fetchWallet(opts.walletId, function(err, wallet) {
|
|
|
|
if (err) return cb(err);
|
|
if (!wallet) return cb(new ClientError('Wallet not found'));
|
|
|
|
var hash = WalletUtils.getCopayerHash(opts.name, opts.xPubKey, opts.requestPubKey);
|
|
if (!self._verifySignature(hash, opts.copayerSignature, wallet.pubKey)) {
|
|
return cb(new ClientError());
|
|
}
|
|
|
|
if (_.find(wallet.copayers, {
|
|
xPubKey: opts.xPubKey
|
|
})) return cb(new ClientError('CINWALLET', 'Copayer already in wallet'));
|
|
|
|
if (wallet.copayers.length == wallet.n)
|
|
return cb(new ClientError('WFULL', 'Wallet full'));
|
|
|
|
var copayer = Model.Copayer.create({
|
|
name: opts.name,
|
|
copayerIndex: wallet.copayers.length,
|
|
xPubKey: opts.xPubKey,
|
|
requestPubKey: opts.requestPubKey,
|
|
signature: opts.copayerSignature,
|
|
isTemporaryRequestKey: !!opts.isTemporaryRequestKey,
|
|
});
|
|
|
|
self.storage.fetchCopayerLookup(copayer.id, function(err, res) {
|
|
if (err) return cb(err);
|
|
if (res)
|
|
return cb(new ClientError('CREGISTERED', 'Copayer ID already registered on server'));
|
|
|
|
wallet.addCopayer(copayer);
|
|
self.storage.storeWalletAndUpdateCopayersLookup(wallet, function(err) {
|
|
if (err) return cb(err);
|
|
|
|
|
|
async.series([
|
|
|
|
function(next) {
|
|
self._notify('NewCopayer', {
|
|
walletId: opts.walletId,
|
|
copayerId: copayer.id,
|
|
copayerName: copayer.name,
|
|
}, next);
|
|
},
|
|
function(next) {
|
|
if (wallet.isComplete() && wallet.isShared()) {
|
|
self._notify('WalletComplete', {
|
|
walletId: opts.walletId,
|
|
}, {
|
|
isGlobal: true
|
|
}, next);
|
|
} else {
|
|
next();
|
|
}
|
|
},
|
|
], function() {
|
|
return cb(null, {
|
|
copayerId: copayer.id,
|
|
wallet: wallet
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Save copayer preferences for the current wallet/copayer pair.
|
|
* @param {Object} opts
|
|
* @param {string} opts.email - Email address for notifications.
|
|
* @param {string} opts.language - Language used for notifications.
|
|
* @param {string} opts.unit - Bitcoin unit used to format amounts in notifications.
|
|
*/
|
|
WalletService.prototype.savePreferences = function(opts, cb) {
|
|
var self = this;
|
|
|
|
opts = opts || {};
|
|
|
|
var preferences = [{
|
|
name: 'email',
|
|
isValid: function(value) {
|
|
return EmailValidator.validate(value);
|
|
},
|
|
}, {
|
|
name: 'language',
|
|
isValid: function(value) {
|
|
return _.isString(value) && value.length == 2;
|
|
},
|
|
}, {
|
|
name: 'unit',
|
|
isValid: function(value) {
|
|
return _.isString(value) && _.contains(['btc', 'bit'], value.toLowerCase());
|
|
},
|
|
}];
|
|
|
|
try {
|
|
_.each(preferences, function(preference) {
|
|
var value = opts[preference.name];
|
|
if (!value) return;
|
|
if (!preference.isValid(value)) {
|
|
throw 'Invalid ' + preference.name;
|
|
return false;
|
|
}
|
|
});
|
|
} catch (ex) {
|
|
return cb(new ClientError(ex));
|
|
}
|
|
|
|
self._runLocked(cb, function(cb) {
|
|
var preferences = Model.Preferences.create({
|
|
walletId: self.walletId,
|
|
copayerId: self.copayerId,
|
|
email: opts.email,
|
|
language: opts.language,
|
|
unit: opts.unit,
|
|
});
|
|
self.storage.storePreferences(preferences, function(err) {
|
|
return cb(err);
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Retrieves a preferences for the current wallet/copayer pair.
|
|
* @param {Object} opts
|
|
* @returns {Object} preferences
|
|
*/
|
|
WalletService.prototype.getPreferences = function(opts, cb) {
|
|
var self = this;
|
|
|
|
self.storage.fetchPreferences(self.walletId, self.copayerId, function(err, preferences) {
|
|
if (err) return cb(err);
|
|
return cb(null, preferences || {});
|
|
});
|
|
};
|
|
|
|
|
|
/**
|
|
* Creates a new address.
|
|
* @param {Object} opts
|
|
* @returns {Address} address
|
|
*/
|
|
WalletService.prototype.createAddress = function(opts, cb) {
|
|
var self = this;
|
|
|
|
self._runLocked(cb, function(cb) {
|
|
self.getWallet({}, function(err, wallet) {
|
|
if (err) return cb(err);
|
|
if (!wallet.isComplete())
|
|
return cb(new ClientError('Wallet is not complete'));
|
|
|
|
var address = wallet.createAddress(false);
|
|
|
|
self.storage.storeAddressAndWallet(wallet, address, function(err) {
|
|
if (err) return cb(err);
|
|
|
|
self._notify('NewAddress', {
|
|
address: address.address,
|
|
}, function() {
|
|
return cb(null, address);
|
|
});
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Get all addresses.
|
|
* @param {Object} opts
|
|
* @returns {Address[]}
|
|
*/
|
|
WalletService.prototype.getMainAddresses = function(opts, cb) {
|
|
var self = this;
|
|
|
|
self.storage.fetchAddresses(self.walletId, function(err, addresses) {
|
|
if (err) return cb(err);
|
|
|
|
var onlyMain = _.reject(addresses, {
|
|
isChange: true
|
|
});
|
|
return cb(null, onlyMain);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Verifies that a given message was actually sent by an authorized copayer.
|
|
* @param {Object} opts
|
|
* @param {string} opts.message - The message to verify.
|
|
* @param {string} opts.signature - The signature of message to verify.
|
|
* @returns {truthy} The result of the verification.
|
|
*/
|
|
WalletService.prototype.verifyMessageSignature = function(opts, cb) {
|
|
var self = this;
|
|
|
|
if (!Utils.checkRequired(opts, ['message', 'signature']))
|
|
return cb(new ClientError('Required argument missing'));
|
|
|
|
self.getWallet({}, function(err, wallet) {
|
|
if (err) return cb(err);
|
|
|
|
var copayer = wallet.getCopayer(self.copayerId);
|
|
|
|
var isValid = self._verifySignature(opts.message, opts.signature, copayer.requestPubKey);
|
|
return cb(null, isValid);
|
|
});
|
|
};
|
|
|
|
|
|
WalletService.prototype._getBlockchainExplorer = function(provider, network) {
|
|
if (!this.blockchainExplorer) {
|
|
var opts = {};
|
|
if (this.blockchainExplorerOpts && this.blockchainExplorerOpts[network]) {
|
|
opts = this.blockchainExplorerOpts[network];
|
|
}
|
|
opts.provider = provider;
|
|
opts.network = network;
|
|
this.blockchainExplorer = new BlockchainExplorer(opts);
|
|
}
|
|
|
|
return this.blockchainExplorer;
|
|
};
|
|
|
|
/**
|
|
* _getUtxos
|
|
*
|
|
*/
|
|
WalletService.prototype._getUtxos = function(cb) {
|
|
var self = this;
|
|
|
|
|
|
// Get addresses for this wallet
|
|
self.storage.fetchAddresses(self.walletId, function(err, addresses) {
|
|
if (err) return cb(err);
|
|
if (addresses.length == 0) return cb(null, []);
|
|
|
|
var addressStrs = _.pluck(addresses, 'address');
|
|
var addressToPath = _.indexBy(addresses, 'address'); // TODO : check performance
|
|
var networkName = Bitcore.Address(addressStrs[0]).toObject().network;
|
|
|
|
var bc = self._getBlockchainExplorer('insight', networkName);
|
|
bc.getUnspentUtxos(addressStrs, function(err, inutxos) {
|
|
if (err) {
|
|
log.error('Could not fetch unspent outputs', err);
|
|
return cb(new ClientError('BLOCKCHAINERROR', 'Could not fetch unspent outputs'));
|
|
}
|
|
var utxos = _.map(inutxos, function(utxo) {
|
|
var u = _.pick(utxo, ['txid', 'vout', 'address', 'scriptPubKey', 'amount', 'satoshis']);
|
|
u.locked = false;
|
|
return u;
|
|
});
|
|
self.getPendingTxs({}, function(err, txps) {
|
|
if (err) return cb(err);
|
|
|
|
var utxoKey = function(utxo) {
|
|
return utxo.txid + '|' + utxo.vout
|
|
};
|
|
|
|
var inputs = _.chain(txps)
|
|
.pluck('inputs')
|
|
.flatten()
|
|
.map(utxoKey)
|
|
.value();
|
|
|
|
var dictionary = _.reduce(utxos, function(memo, utxo) {
|
|
memo[utxoKey(utxo)] = utxo;
|
|
return memo;
|
|
}, {});
|
|
|
|
_.each(inputs, function(input) {
|
|
if (dictionary[input]) {
|
|
dictionary[input].locked = true;
|
|
}
|
|
});
|
|
|
|
// Needed for the clients to sign UTXOs
|
|
_.each(utxos, function(utxo) {
|
|
utxo.satoshis = utxo.satoshis ? +utxo.satoshis : Utils.strip(utxo.amount * 1e8);
|
|
delete utxo.amount;
|
|
utxo.path = addressToPath[utxo.address].path;
|
|
utxo.publicKeys = addressToPath[utxo.address].publicKeys;
|
|
});
|
|
|
|
return cb(null, utxos);
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
WalletService.prototype._totalizeUtxos = function(utxos) {
|
|
var balance = {};
|
|
balance.totalAmount = Utils.strip(_.reduce(utxos, function(sum, utxo) {
|
|
return sum + utxo.satoshis;
|
|
}, 0));
|
|
|
|
balance.lockedAmount = Utils.strip(_.reduce(_.filter(utxos, {
|
|
locked: true
|
|
}), function(sum, utxo) {
|
|
return sum + utxo.satoshis;
|
|
}, 0));
|
|
return balance;
|
|
};
|
|
|
|
|
|
WalletService.prototype._computeKbToSendMax = function(utxos, amount, cb) {
|
|
var self = this;
|
|
|
|
var unlockedUtxos = _.filter(utxos, {
|
|
locked: false
|
|
});
|
|
if (_.isEmpty(unlockedUtxos)) return cb(null, 0);
|
|
|
|
self.getWallet({}, function(err, wallet) {
|
|
if (err) return cb(err);
|
|
|
|
var t = WalletUtils.newBitcoreTransaction();
|
|
try {
|
|
_.each(unlockedUtxos, function(i) {
|
|
t.from(i, i.publicKeys, wallet.m);
|
|
});
|
|
t.to(utxos[0].address, amount);
|
|
var sizeInKb = Math.ceil(t._estimateSize() / 1000);
|
|
return cb(null, sizeInKb);
|
|
} catch (ex) {
|
|
return cb(ex);
|
|
}
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Creates a new transaction proposal.
|
|
* @param {Object} opts
|
|
* @returns {Object} balance - Total amount & locked amount.
|
|
*/
|
|
WalletService.prototype.getBalance = function(opts, cb) {
|
|
var self = this;
|
|
|
|
self._getUtxos(function(err, utxos) {
|
|
if (err) return cb(err);
|
|
|
|
var balance = self._totalizeUtxos(utxos);
|
|
|
|
// Compute balance by address
|
|
var byAddress = {};
|
|
_.each(_.indexBy(utxos, 'address'), function(value, key) {
|
|
byAddress[key] = {
|
|
address: key,
|
|
path: value.path,
|
|
amount: 0,
|
|
};
|
|
});
|
|
|
|
_.each(utxos, function(utxo) {
|
|
byAddress[utxo.address].amount += utxo.satoshis;
|
|
});
|
|
|
|
balance.byAddress = _.values(byAddress);
|
|
|
|
self._computeKbToSendMax(utxos, balance.totalAmount - balance.lockedAmount, function(err, sizeInKb) {
|
|
if (err) {
|
|
log.error('Could not compute fees needed to transfer max amount', err);
|
|
}
|
|
balance.totalKbToSendMax = sizeInKb || 0;
|
|
return cb(null, balance);
|
|
});
|
|
});
|
|
};
|
|
|
|
WalletService.prototype._selectTxInputs = function(txp, cb) {
|
|
var self = this;
|
|
|
|
self._getUtxos(function(err, utxos) {
|
|
if (err) return cb(err);
|
|
|
|
var balance = self._totalizeUtxos(utxos);
|
|
|
|
if (balance.totalAmount < txp.getTotalAmount())
|
|
return cb(new ClientError('INSUFFICIENTFUNDS', 'Insufficient funds'));
|
|
if ((balance.totalAmount - balance.lockedAmount) < txp.amount)
|
|
return cb(new ClientError('LOCKEDFUNDS', 'Funds are locked by pending transaction proposals'));
|
|
|
|
utxos = _.reject(utxos, {
|
|
locked: true
|
|
});
|
|
|
|
var i = 0;
|
|
var total = 0;
|
|
var selected = [];
|
|
var inputs = _.sortBy(utxos, 'amount');
|
|
var bitcoreTx, bitcoreError;
|
|
|
|
while (i < inputs.length) {
|
|
selected.push(inputs[i]);
|
|
total += inputs[i].satoshis;
|
|
i++;
|
|
|
|
if (total >= txp.getTotalAmount()) {
|
|
try {
|
|
txp.setInputs(selected);
|
|
bitcoreTx = txp.getBitcoreTx();
|
|
bitcoreError = bitcoreTx.getSerializationError({
|
|
disableIsFullySigned: true,
|
|
});
|
|
if (!bitcoreError) {
|
|
txp.fee = bitcoreTx.getFee();
|
|
return cb();
|
|
}
|
|
} catch (ex) {
|
|
log.error('Error building Bitcore transaction', ex);
|
|
return cb(ex);
|
|
}
|
|
}
|
|
};
|
|
|
|
if (bitcoreError instanceof Bitcore.errors.Transaction.FeeError) {
|
|
return cb(new ClientError('INSUFFICIENTFUNDS', 'Insufficient funds for fee'));
|
|
}
|
|
if (bitcoreError instanceof Bitcore.errors.Transaction.DustOutputs) {
|
|
return cb(new ClientError('DUSTAMOUNT', 'Amount below dust threshold'));
|
|
}
|
|
|
|
return cb(bitcoreError || new Error('Could not select tx inputs'));
|
|
});
|
|
};
|
|
|
|
|
|
WalletService.prototype._canCreateTx = function(copayerId, cb) {
|
|
var self = this;
|
|
self.storage.fetchLastTxs(self.walletId, copayerId, 5 + WalletService.backoffOffset, function(err, txs) {
|
|
if (err) return cb(err);
|
|
|
|
if (!txs.length)
|
|
return cb(null, true);
|
|
|
|
var lastRejections = _.takeWhile(txs, {
|
|
status: 'rejected'
|
|
});
|
|
|
|
var exceededRejections = lastRejections.length - WalletService.backoffOffset;
|
|
if (exceededRejections <= 0)
|
|
return cb(null, true);
|
|
|
|
|
|
var lastTxTs = txs[0].createdOn;
|
|
var now = Math.floor(Date.now() / 1000);
|
|
var timeSinceLastRejection = now - lastTxTs;
|
|
var backoffTime = 60 * Math.pow(WalletService.backoffTimeMinutes, exceededRejections);
|
|
|
|
if (timeSinceLastRejection <= backoffTime)
|
|
log.debug('Not allowing to create TX: timeSinceLastRejection/backoffTime', timeSinceLastRejection, backoffTime);
|
|
|
|
return cb(null, timeSinceLastRejection > backoffTime);
|
|
});
|
|
};
|
|
|
|
|
|
/**
|
|
* Creates a new transaction proposal.
|
|
* @param {Object} opts
|
|
* @param {string} opts.type - Proposal type.
|
|
* @param {string} opts.toAddress || opts.outputs[].toAddress - Destination address.
|
|
* @param {number} opts.amount || opts.outputs[].amount - Amount to transfer in satoshi.
|
|
* @param {string} opts.outputs[].message - A message to attach to this output.
|
|
* @param {string} opts.message - A message to attach to this transaction.
|
|
* @param {string} opts.proposalSignature - S(toAddress|amount|message|payProUrl). Used by other copayers to verify the proposal.
|
|
* @param {string} opts.feePerKb - Optional: Use an alternative fee per KB for this TX
|
|
* @param {string} opts.payProUrl - Optional: Paypro URL for peers to verify TX
|
|
* @returns {TxProposal} Transaction proposal.
|
|
*/
|
|
WalletService.prototype.createTx = function(opts, cb) {
|
|
var self = this;
|
|
|
|
if (!opts.outputs) {
|
|
opts.outputs = _.pick(opts, ['amount', 'toAddress']);
|
|
}
|
|
opts.outputs = [].concat(opts.outputs);
|
|
|
|
if (!Utils.checkRequired(opts, ['outputs', 'proposalSignature']))
|
|
return cb(new ClientError('Required argument missing'));
|
|
|
|
var type = opts.type || Model.TxProposal.Types.SIMPLE;
|
|
if (!Model.TxProposal.isTypeSupported(type))
|
|
return cb(new ClientError('Invalid proposal type'));
|
|
|
|
_.each(opts.outputs, function(output) {
|
|
if (!Utils.checkRequired(output, ['toAddress', 'amount'])) {
|
|
output.valid = false;
|
|
cb(new ClientError('Required outputs argument missing'));
|
|
return false;
|
|
}
|
|
});
|
|
if (_.any(opts.outputs, {
|
|
valid: false
|
|
})) return;
|
|
|
|
var feePerKb = opts.feePerKb || 10000;
|
|
if (feePerKb < WalletUtils.MIN_FEE_PER_KB || feePerKb > WalletUtils.MAX_FEE_PER_KB)
|
|
return cb(new ClientError('Invalid fee per KB value'));
|
|
|
|
self._runLocked(cb, function(cb) {
|
|
self.getWallet({}, function(err, wallet) {
|
|
if (err) return cb(err);
|
|
if (!wallet.isComplete())
|
|
return cb(new ClientError('Wallet is not complete'));
|
|
|
|
var copayer = wallet.getCopayer(self.copayerId);
|
|
var hash;
|
|
if (!opts.type) {
|
|
hash = WalletUtils.getProposalHash(opts.toAddress, opts.amount, opts.message, opts.payProUrl);
|
|
} else {
|
|
var header = {
|
|
outputs: _.map(opts.outputs, function(output) {
|
|
return _.pick(output, ['toAddress', 'amount', 'message']);
|
|
}),
|
|
message: opts.message,
|
|
payProUrl: opts.payProUrl
|
|
};
|
|
hash = WalletUtils.getProposalHash(header)
|
|
}
|
|
|
|
if (!self._verifySignature(hash, opts.proposalSignature, copayer.requestPubKey))
|
|
return cb(new ClientError('Invalid proposal signature'));
|
|
|
|
self._canCreateTx(self.copayerId, function(err, canCreate) {
|
|
if (err) return cb(err);
|
|
if (!canCreate)
|
|
return cb(new ClientError('NOTALLOWEDTOCREATETX', 'Cannot create TX proposal during backoff time'));
|
|
|
|
_.each(opts.outputs, function(output) {
|
|
output.valid = false;
|
|
var toAddress = {};
|
|
try {
|
|
toAddress = new Bitcore.Address(output.toAddress);
|
|
} catch (ex) {
|
|
cb(new ClientError('INVALIDADDRESS', 'Invalid address'));
|
|
return false;
|
|
}
|
|
if (toAddress.network != wallet.getNetworkName()) {
|
|
cb(new ClientError('INVALIDADDRESS', 'Incorrect address network'));
|
|
return false;
|
|
}
|
|
if (!_.isNumber(output.amount) || _.isNaN(output.amount) || output.amount <= 0) {
|
|
cb(new ClientError('Invalid amount'));
|
|
return false;
|
|
}
|
|
if (output.amount < Bitcore.Transaction.DUST_AMOUNT) {
|
|
cb(new ClientError('DUSTAMOUNT', 'Amount below dust threshold'));
|
|
return false;
|
|
}
|
|
output.valid = true;
|
|
});
|
|
if (_.any(opts.outputs, {
|
|
valid: false
|
|
})) return;
|
|
|
|
var txp = Model.TxProposal.create({
|
|
type: type,
|
|
walletId: self.walletId,
|
|
creatorId: self.copayerId,
|
|
outputs: opts.outputs,
|
|
toAddress: opts.toAddress,
|
|
amount: opts.amount,
|
|
message: opts.message,
|
|
proposalSignature: opts.proposalSignature,
|
|
changeAddress: wallet.createAddress(true),
|
|
feePerKb: feePerKb,
|
|
payProUrl: opts.payProUrl,
|
|
requiredSignatures: wallet.m,
|
|
requiredRejections: Math.min(wallet.m, wallet.n - wallet.m + 1),
|
|
});
|
|
|
|
self._selectTxInputs(txp, function(err) {
|
|
if (err) return cb(err);
|
|
|
|
$.checkState(txp.inputs);
|
|
|
|
self.storage.storeAddressAndWallet(wallet, txp.changeAddress, function(err) {
|
|
if (err) return cb(err);
|
|
|
|
self.storage.storeTx(wallet.id, txp, function(err) {
|
|
if (err) return cb(err);
|
|
|
|
self._notify('NewTxProposal', {
|
|
amount: txp.getTotalAmount()
|
|
}, function() {
|
|
return cb(null, txp);
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Retrieves a tx from storage.
|
|
* @param {Object} opts
|
|
* @param {string} opts.txProposalId - The tx id.
|
|
* @returns {Object} txProposal
|
|
*/
|
|
WalletService.prototype.getTx = function(opts, cb) {
|
|
var self = this;
|
|
|
|
self.storage.fetchTx(self.walletId, opts.txProposalId, function(err, txp) {
|
|
if (err) return cb(err);
|
|
if (!txp) return cb(new ClientError('Transaction proposal not found'));
|
|
return cb(null, txp);
|
|
});
|
|
};
|
|
|
|
|
|
/**
|
|
* removeWallet
|
|
*
|
|
* @param opts
|
|
* @param cb
|
|
* @return {undefined}
|
|
*/
|
|
WalletService.prototype.removeWallet = function(opts, cb) {
|
|
var self = this;
|
|
|
|
self._runLocked(cb, function(cb) {
|
|
self.storage.removeWallet(self.walletId, cb);
|
|
});
|
|
};
|
|
|
|
WalletService.prototype.getRemainingDeleteLockTime = function(txp) {
|
|
var now = Math.floor(Date.now() / 1000);
|
|
|
|
var lockTimeRemaining = txp.createdOn + WalletService.deleteLockTime - now;
|
|
if (lockTimeRemaining < 0)
|
|
return 0;
|
|
|
|
// not the creator? need to wait
|
|
if (txp.creatorId !== this.copayerId)
|
|
return lockTimeRemaining;
|
|
|
|
// has other approvers? need to wait
|
|
var approvers = txp.getApprovers();
|
|
if (approvers.length > 1 || (approvers.length == 1 && approvers[0] !== this.copayerId))
|
|
return lockTimeRemaining;
|
|
|
|
return 0;
|
|
};
|
|
|
|
|
|
/**
|
|
* removePendingTx
|
|
*
|
|
* @param opts
|
|
* @param {string} opts.txProposalId - The tx id.
|
|
* @return {undefined}
|
|
*/
|
|
WalletService.prototype.removePendingTx = function(opts, cb) {
|
|
var self = this;
|
|
|
|
if (!Utils.checkRequired(opts, ['txProposalId']))
|
|
return cb(new ClientError('Required argument missing'));
|
|
|
|
self._runLocked(cb, function(cb) {
|
|
|
|
self.getTx({
|
|
txProposalId: opts.txProposalId,
|
|
}, function(err, txp) {
|
|
if (err) return cb(err);
|
|
|
|
if (!txp.isPending())
|
|
return cb(new ClientError('TXNOTPENDING', 'Transaction proposal not pending'));
|
|
|
|
|
|
var deleteLockTime = self.getRemainingDeleteLockTime(txp);
|
|
if (deleteLockTime > 0) {
|
|
return cb(new ClientError('TXCANNOTREMOVE', 'Cannot remove this tx proposal during locktime'));
|
|
}
|
|
self.storage.removeTx(self.walletId, txp.id, function() {
|
|
self._notify('TxProposalRemoved', {}, cb);
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
|
|
WalletService.prototype._broadcastTx = function(txp, cb) {
|
|
var raw;
|
|
try {
|
|
raw = txp.getRawTx();
|
|
} catch (ex) {
|
|
return cb(ex);
|
|
}
|
|
var bc = this._getBlockchainExplorer('insight', txp.getNetworkName());
|
|
bc.broadcast(raw, function(err, txid) {
|
|
if (err) {
|
|
log.error('Could not broadcast transaction', err);
|
|
return cb(new ClientError('BLOCKCHAINERROR', 'Could not broadcast transaction'));
|
|
}
|
|
return cb(null, txid);
|
|
})
|
|
};
|
|
|
|
WalletService.prototype._checkTxInBlockchain = function(txp, cb) {
|
|
var tx = txp.getBitcoreTx();
|
|
var bc = this._getBlockchainExplorer('insight', txp.getNetworkName());
|
|
bc.getTransaction(tx.id, function(err, tx) {
|
|
if (err) {
|
|
log.error('Could not get transaction info', err);
|
|
return cb(new ClientError('BLOCKCHAINERROR', 'Could not get transaction info'));
|
|
}
|
|
return cb(null, tx);
|
|
})
|
|
};
|
|
|
|
/**
|
|
* Sign a transaction proposal.
|
|
* @param {Object} opts
|
|
* @param {string} opts.txProposalId - The identifier of the transaction.
|
|
* @param {string} opts.signatures - The signatures of the inputs of this tx for this copayer (in apperance order)
|
|
*/
|
|
WalletService.prototype.signTx = function(opts, cb) {
|
|
var self = this;
|
|
|
|
if (!Utils.checkRequired(opts, ['txProposalId', 'signatures']))
|
|
return cb(new ClientError('Required argument missing'));
|
|
|
|
self.getWallet({}, function(err, wallet) {
|
|
if (err) return cb(err);
|
|
|
|
self.getTx({
|
|
txProposalId: opts.txProposalId
|
|
}, function(err, txp) {
|
|
if (err) return cb(err);
|
|
|
|
var action = _.find(txp.actions, {
|
|
copayerId: self.copayerId
|
|
});
|
|
if (action)
|
|
return cb(new ClientError('CVOTED', 'Copayer already voted on this transaction proposal'));
|
|
if (!txp.isPending())
|
|
return cb(new ClientError('TXNOTPENDING', 'The transaction proposal is not pending'));
|
|
|
|
var copayer = wallet.getCopayer(self.copayerId);
|
|
|
|
if (!txp.sign(self.copayerId, opts.signatures, copayer.xPubKey))
|
|
return cb(new ClientError('BADSIGNATURES', 'Bad signatures'));
|
|
|
|
self.storage.storeTx(self.walletId, txp, function(err) {
|
|
if (err) return cb(err);
|
|
|
|
async.series([
|
|
|
|
function(next) {
|
|
self._notify('TxProposalAcceptedBy', {
|
|
txProposalId: opts.txProposalId,
|
|
copayerId: self.copayerId,
|
|
}, next);
|
|
},
|
|
function(next) {
|
|
if (txp.isAccepted()) {
|
|
self._notify('TxProposalFinallyAccepted', {
|
|
txProposalId: opts.txProposalId,
|
|
}, next);
|
|
} else {
|
|
next();
|
|
}
|
|
},
|
|
], function() {
|
|
return cb(null, txp);
|
|
});
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
|
|
/**
|
|
* Broadcast a transaction proposal.
|
|
* @param {Object} opts
|
|
* @param {string} opts.txProposalId - The identifier of the transaction.
|
|
*/
|
|
WalletService.prototype.broadcastTx = function(opts, cb) {
|
|
var self = this;
|
|
|
|
if (!Utils.checkRequired(opts, ['txProposalId']))
|
|
return cb(new ClientError('Required argument missing'));
|
|
|
|
function setBroadcasted(txp, txid, cb) {
|
|
txp.setBroadcasted(txid);
|
|
self.storage.storeTx(self.walletId, txp, function(err) {
|
|
if (err) return cb(err);
|
|
|
|
self._notify('NewOutgoingTx', {
|
|
txProposalId: opts.txProposalId,
|
|
txid: txid,
|
|
amount: txp.getTotalAmount(),
|
|
}, function() {
|
|
return cb(null, txp);
|
|
});
|
|
});
|
|
};
|
|
|
|
self.getWallet({}, function(err, wallet) {
|
|
if (err) return cb(err);
|
|
|
|
self.getTx({
|
|
txProposalId: opts.txProposalId
|
|
}, function(err, txp) {
|
|
if (err) return cb(err);
|
|
|
|
if (txp.status == 'broadcasted')
|
|
return cb(new ClientError('TXALREADYBROADCASTED', 'The transaction proposal is already broadcasted'));
|
|
|
|
if (txp.status != 'accepted')
|
|
return cb(new ClientError('TXNOTACCEPTED', 'The transaction proposal is not accepted'));
|
|
|
|
self._broadcastTx(txp, function(err, txid) {
|
|
if (err) {
|
|
var broadcastErr = err;
|
|
// Check if tx already in blockchain
|
|
self._checkTxInBlockchain(txp, function(err, tx) {
|
|
if (err) return cb(err);
|
|
if (!tx) return cb(broadcastErr);
|
|
|
|
setBroadcasted(txp, tx.txid, cb);
|
|
});
|
|
} else {
|
|
setBroadcasted(txp, txid, cb);
|
|
}
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Reject a transaction proposal.
|
|
* @param {Object} opts
|
|
* @param {string} opts.txProposalId - The identifier of the transaction.
|
|
* @param {string} [opts.reason] - A message to other copayers explaining the rejection.
|
|
*/
|
|
WalletService.prototype.rejectTx = function(opts, cb) {
|
|
var self = this;
|
|
|
|
if (!Utils.checkRequired(opts, ['txProposalId']))
|
|
return cb(new ClientError('Required argument missing'));
|
|
|
|
self.getTx({
|
|
txProposalId: opts.txProposalId
|
|
}, function(err, txp) {
|
|
if (err) return cb(err);
|
|
|
|
var action = _.find(txp.actions, {
|
|
copayerId: self.copayerId
|
|
});
|
|
if (action)
|
|
return cb(new ClientError('CVOTED', 'Copayer already voted on this transaction proposal'));
|
|
|
|
if (txp.status != 'pending')
|
|
return cb(new ClientError('TXNOTPENDING', 'The transaction proposal is not pending'));
|
|
|
|
txp.reject(self.copayerId, opts.reason);
|
|
|
|
self.storage.storeTx(self.walletId, txp, function(err) {
|
|
if (err) return cb(err);
|
|
|
|
async.series([
|
|
|
|
function(next) {
|
|
self._notify('TxProposalRejectedBy', {
|
|
txProposalId: opts.txProposalId,
|
|
copayerId: self.copayerId,
|
|
}, next);
|
|
},
|
|
function(next) {
|
|
if (txp.status == 'rejected') {
|
|
var rejectedBy = _.pluck(_.filter(txp.actions, {
|
|
type: 'reject'
|
|
}), 'copayerId');
|
|
|
|
self._notify('TxProposalFinallyRejected', {
|
|
txProposalId: opts.txProposalId,
|
|
rejectedBy: rejectedBy,
|
|
}, next);
|
|
} else {
|
|
next();
|
|
}
|
|
},
|
|
], function() {
|
|
return cb(null, txp);
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Retrieves pending transaction proposals.
|
|
* @param {Object} opts
|
|
* @returns {TxProposal[]} Transaction proposal.
|
|
*/
|
|
WalletService.prototype.getPendingTxs = function(opts, cb) {
|
|
var self = this;
|
|
|
|
self.storage.fetchPendingTxs(self.walletId, function(err, txps) {
|
|
if (err) return cb(err);
|
|
|
|
_.each(txps, function(txp) {
|
|
txp.deleteLockTime = self.getRemainingDeleteLockTime(txp);
|
|
});
|
|
|
|
return cb(null, txps);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Retrieves all transaction proposals in the range (maxTs-minTs)
|
|
* Times are in UNIX EPOCH
|
|
*
|
|
* @param {Object} opts.minTs (defaults to 0)
|
|
* @param {Object} opts.maxTs (defaults to now)
|
|
* @param {Object} opts.limit
|
|
* @returns {TxProposal[]} Transaction proposals, newer first
|
|
*/
|
|
WalletService.prototype.getTxs = function(opts, cb) {
|
|
var self = this;
|
|
self.storage.fetchTxs(self.walletId, opts, function(err, txps) {
|
|
if (err) return cb(err);
|
|
return cb(null, txps);
|
|
});
|
|
};
|
|
|
|
|
|
/**
|
|
* Retrieves notifications in the range (maxTs-minTs).
|
|
* Times are in UNIX EPOCH. Order is assured even for events with the same time
|
|
*
|
|
* @param {Object} opts.minTs (defaults to 0)
|
|
* @param {Object} opts.maxTs (defaults to now)
|
|
* @param {Object} opts.limit
|
|
* @param {Object} opts.reverse (default false)
|
|
* @returns {Notification[]} Notifications
|
|
*/
|
|
WalletService.prototype.getNotifications = function(opts, cb) {
|
|
var self = this;
|
|
self.storage.fetchNotifications(self.walletId, opts, function(err, notifications) {
|
|
if (err) return cb(err);
|
|
return cb(null, notifications);
|
|
});
|
|
};
|
|
|
|
|
|
WalletService.prototype._normalizeTxHistory = function(txs) {
|
|
return _.map(txs, function(tx) {
|
|
var inputs = _.map(tx.vin, function(item) {
|
|
return {
|
|
address: item.addr,
|
|
amount: item.valueSat,
|
|
}
|
|
});
|
|
|
|
var outputs = _.map(tx.vout, function(item) {
|
|
var itemAddr;
|
|
// If classic multisig, ignore
|
|
if (item.scriptPubKey && item.scriptPubKey.addresses.length == 1) {
|
|
itemAddr = item.scriptPubKey.addresses[0];
|
|
}
|
|
|
|
return {
|
|
address: itemAddr,
|
|
amount: parseInt((item.value * 1e8).toFixed(0)),
|
|
}
|
|
});
|
|
|
|
return {
|
|
txid: tx.txid,
|
|
confirmations: tx.confirmations,
|
|
fees: parseInt((tx.fees * 1e8).toFixed(0)),
|
|
time: !_.isNaN(tx.time) ? tx.time : Math.floor(Date.now() / 1000),
|
|
inputs: inputs,
|
|
outputs: outputs,
|
|
};
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Retrieves all transactions (incoming & outgoing)
|
|
* Times are in UNIX EPOCH
|
|
*
|
|
* @param {Object} opts
|
|
* @param {Number} opts.skip (defaults to 0)
|
|
* @param {Number} opts.limit
|
|
* @returns {TxProposal[]} Transaction proposals, first newer
|
|
*/
|
|
WalletService.prototype.getTxHistory = function(opts, cb) {
|
|
var self = this;
|
|
|
|
function decorate(txs, addresses, proposals) {
|
|
|
|
var indexedAddresses = _.indexBy(addresses, 'address');
|
|
var indexedProposals = _.indexBy(proposals, 'txid');
|
|
|
|
function sum(items, isMine, isChange) {
|
|
var filter = {};
|
|
if (_.isBoolean(isMine)) filter.isMine = isMine;
|
|
if (_.isBoolean(isChange)) filter.isChange = isChange;
|
|
return _.reduce(_.where(items, filter),
|
|
function(memo, item) {
|
|
return memo + item.amount;
|
|
}, 0);
|
|
};
|
|
|
|
function classify(items) {
|
|
return _.map(items, function(item) {
|
|
var address = indexedAddresses[item.address];
|
|
return {
|
|
address: item.address,
|
|
amount: item.amount,
|
|
isMine: !!address,
|
|
isChange: address ? address.isChange : false,
|
|
}
|
|
});
|
|
};
|
|
|
|
var now = Math.floor(Date.now() / 1000);
|
|
|
|
return _.map(txs, function(tx) {
|
|
var inputs = classify(tx.inputs);
|
|
var outputs = classify(tx.outputs);
|
|
|
|
var amountIn = sum(inputs, true);
|
|
var amountOut = sum(outputs, true, false);
|
|
var amountOutChange = sum(outputs, true, true);
|
|
var amount, action, addressTo;
|
|
if (amountIn == (amountOut + amountOutChange + (amountIn > 0 ? tx.fees : 0))) {
|
|
amount = amountOut;
|
|
action = 'moved';
|
|
} else {
|
|
amount = amountIn - amountOut - amountOutChange - (amountIn > 0 ? tx.fees : 0);
|
|
action = amount > 0 ? 'sent' : 'received';
|
|
}
|
|
|
|
amount = Math.abs(amount);
|
|
if (action == 'sent' || action == 'moved') {
|
|
var firstExternalOutput = _.find(outputs, {
|
|
isMine: false
|
|
});
|
|
addressTo = firstExternalOutput ? firstExternalOutput.address : 'N/A';
|
|
};
|
|
|
|
var newTx = {
|
|
txid: tx.txid,
|
|
action: action,
|
|
amount: amount,
|
|
fees: tx.fees,
|
|
time: tx.time || now,
|
|
addressTo: addressTo,
|
|
confirmations: tx.confirmations,
|
|
};
|
|
|
|
var proposal = indexedProposals[tx.txid];
|
|
if (proposal) {
|
|
newTx.proposalId = proposal.id;
|
|
newTx.creatorName = proposal.creatorName;
|
|
newTx.message = proposal.message;
|
|
newTx.actions = _.map(proposal.actions, function(action) {
|
|
return _.pick(action, ['createdOn', 'type', 'copayerId', 'copayerName', 'comment']);
|
|
});
|
|
// newTx.sentTs = proposal.sentTs;
|
|
// newTx.merchant = proposal.merchant;
|
|
//newTx.paymentAckMemo = proposal.paymentAckMemo;
|
|
}
|
|
|
|
return newTx;
|
|
});
|
|
};
|
|
|
|
function paginate(txs) {
|
|
var skip = opts.skip || 0;
|
|
var limited = _.isNumber(opts.limit) && opts.limit != -1;
|
|
|
|
var sliced = _.slice(_.sortBy(txs, function(tx) {
|
|
return -tx.time;
|
|
}), skip);
|
|
|
|
return limited ? _.take(sliced, opts.limit) : sliced;
|
|
};
|
|
|
|
// Get addresses for this wallet
|
|
self.storage.fetchAddresses(self.walletId, function(err, addresses) {
|
|
if (err) return cb(err);
|
|
if (addresses.length == 0) return cb(null, []);
|
|
|
|
var addressStrs = _.pluck(addresses, 'address');
|
|
var networkName = Bitcore.Address(addressStrs[0]).toObject().network;
|
|
|
|
var bc = self._getBlockchainExplorer('insight', networkName);
|
|
async.parallel([
|
|
|
|
function(next) {
|
|
self.storage.fetchTxs(self.walletId, {}, function(err, txps) {
|
|
if (err) return next(err);
|
|
next(null, txps);
|
|
});
|
|
},
|
|
function(next) {
|
|
bc.getTransactions(addressStrs, null, null, function(err, txs) {
|
|
if (err) {
|
|
log.error('Could not fetch transactions', err);
|
|
return next(new ClientError('BLOCKCHAINERROR', 'Could not fetch transactions'));
|
|
}
|
|
next(null, self._normalizeTxHistory(txs));
|
|
});
|
|
},
|
|
], function(err, res) {
|
|
if (err) return cb(err);
|
|
|
|
var proposals = res[0];
|
|
var txs = res[1];
|
|
|
|
txs = paginate(decorate(txs, addresses, proposals));
|
|
|
|
return cb(null, txs);
|
|
});
|
|
});
|
|
};
|
|
|
|
|
|
/**
|
|
* Scan the blockchain looking for addresses having some activity
|
|
*
|
|
* @param {Object} opts
|
|
* @param {Boolean} opts.includeCopayerBranches (defaults to false)
|
|
*/
|
|
WalletService.prototype.scan = function(opts, cb) {
|
|
var self = this;
|
|
|
|
opts = opts || {};
|
|
|
|
function deriveAddresses(size, derivator, cb) {
|
|
async.mapSeries(_.range(size), function(i, next) {
|
|
setTimeout(function() {
|
|
next(null, derivator.derive());
|
|
}, WalletService.scanConfig.DERIVATION_DELAY)
|
|
}, cb);
|
|
};
|
|
|
|
function checkActivity(addresses, networkName, cb) {
|
|
var bc = self._getBlockchainExplorer('insight', networkName);
|
|
bc.getAddressActivity(addresses, cb);
|
|
};
|
|
|
|
function scanBranch(derivator, cb) {
|
|
var activity = true;
|
|
var allAddresses = [];
|
|
var networkName;
|
|
async.whilst(function() {
|
|
return activity;
|
|
}, function(next) {
|
|
deriveAddresses(WalletService.scanConfig.SCAN_WINDOW, derivator, function(err, addresses) {
|
|
if (err) return next(err);
|
|
networkName = networkName || Bitcore.Address(addresses[0].address).toObject().network;
|
|
checkActivity(_.pluck(addresses, 'address'), networkName, function(err, thereIsActivity) {
|
|
if (err) {
|
|
log.error('Could not check address activity', err);
|
|
return next(new ClientError('BLOCKCHAINERROR', 'Could not check address activity'));
|
|
}
|
|
|
|
activity = thereIsActivity;
|
|
if (thereIsActivity) {
|
|
allAddresses.push(addresses);
|
|
} else {
|
|
derivator.rewind(WalletService.scanConfig.SCAN_WINDOW);
|
|
}
|
|
next();
|
|
});
|
|
});
|
|
}, function(err) {
|
|
return cb(err, _.flatten(allAddresses));
|
|
});
|
|
};
|
|
|
|
|
|
self._runLocked(cb, function(cb) {
|
|
self.getWallet({}, function(err, wallet) {
|
|
if (err) return cb(err);
|
|
if (!wallet.isComplete()) return cb(new ClientError('Wallet is not complete'));
|
|
|
|
wallet.scanStatus = 'running';
|
|
self.storage.storeWallet(wallet, function(err) {
|
|
if (err) return cb(err);
|
|
|
|
var derivators = [];
|
|
_.each([false, true], function(isChange) {
|
|
derivators.push({
|
|
derive: _.bind(wallet.createAddress, wallet, isChange),
|
|
rewind: _.bind(wallet.addressManager.rewindIndex, wallet.addressManager, isChange),
|
|
});
|
|
if (opts.includeCopayerBranches) {
|
|
_.each(wallet.copayers, function(copayer) {
|
|
derivators.push({
|
|
derive: _.bind(copayer.createAddress, copayer, wallet, isChange),
|
|
rewind: _.bind(copayer.addressManager.rewindIndex, copayer.addressManager, isChange),
|
|
});
|
|
});
|
|
}
|
|
});
|
|
|
|
async.eachSeries(derivators, function(derivator, next) {
|
|
scanBranch(derivator, function(err, addresses) {
|
|
if (err) return next(err);
|
|
self.storage.storeAddressAndWallet(wallet, addresses, next);
|
|
});
|
|
}, function(err) {
|
|
wallet.scanStatus = err ? 'error' : 'success';
|
|
self.storage.storeWallet(wallet, function() {
|
|
return cb(err);
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Start a scan process.
|
|
*
|
|
* @param {Object} opts
|
|
* @param {Boolean} opts.includeCopayerBranches (defaults to false)
|
|
*/
|
|
WalletService.prototype.startScan = function(opts, cb) {
|
|
var self = this;
|
|
|
|
function scanFinished(err) {
|
|
var data = {
|
|
result: err ? 'error' : 'success',
|
|
};
|
|
if (err) data.error = err;
|
|
self._notify('ScanFinished', data, {
|
|
isGlobal: true
|
|
});
|
|
};
|
|
|
|
self.getWallet({}, function(err, wallet) {
|
|
if (err) return cb(err);
|
|
if (!wallet.isComplete()) return cb(new ClientError('Wallet is not complete'));
|
|
|
|
setTimeout(function() {
|
|
self.scan(opts, scanFinished);
|
|
}, 100);
|
|
|
|
return cb(null, {
|
|
started: true
|
|
});
|
|
});
|
|
};
|
|
|
|
|
|
module.exports = WalletService;
|
|
module.exports.ClientError = ClientError;
|