1012 lines
28 KiB
JavaScript
1012 lines
28 KiB
JavaScript
'use strict';
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var _ = require('lodash');
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var $ = require('preconditions').singleton();
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var async = require('async');
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var log = require('npmlog');
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log.debug = log.verbose;
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var inherits = require('inherits');
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var events = require('events');
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var nodeutil = require('util');
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var Bitcore = require('bitcore');
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var PublicKey = Bitcore.PublicKey;
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var HDPublicKey = Bitcore.HDPublicKey;
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var Address = Bitcore.Address;
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var Explorers = require('bitcore-explorers');
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var ClientError = require('./clienterror');
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var Utils = require('./utils');
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var Storage = require('./storage');
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var WalletUtils = require('./walletutils');
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var Wallet = require('./model/wallet');
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var Copayer = require('./model/copayer');
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var Address = require('./model/address');
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var TxProposal = require('./model/txproposal');
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var Notification = require('./model/notification');
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var initialized = false;
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var storage, blockExplorer;
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/**
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* Creates an instance of the Copay server.
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* @constructor
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*/
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function WalletService() {
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if (!initialized)
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throw new Error('Server not initialized');
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this.storage = storage;
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this.blockExplorer = blockExplorer;
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this.notifyTicker = 0;
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};
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nodeutil.inherits(WalletService, events.EventEmitter);
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/**
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* Initializes global settings for all instances.
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* @param {Object} opts
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* @param {Storage} [opts.storage] - The storage provider.
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* @param {Storage} [opts.blockExplorer] - The blockExporer provider.
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*/
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WalletService.initialize = function(opts) {
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opts = opts || {};
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storage = opts.storage || new Storage();
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blockExplorer = opts.blockExplorer;
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initialized = true;
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};
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WalletService.getInstance = function() {
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return new WalletService();
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};
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/**
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* Gets an instance of the server after authenticating the copayer.
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* @param {Object} opts
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* @param {string} opts.copayerId - The copayer id making the request.
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* @param {string} opts.message - The contents of the request to be signed.
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* @param {string} opts.signature - Signature of message to be verified using the copayer's roPubKey / rwPubKey
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* @param {string} opts.readOnly - Signature of message to be verified using the copayer's roPubKey / rwPubKey
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*/
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WalletService.getInstanceWithAuth = function(opts, cb) {
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if (!Utils.checkRequired(opts, ['copayerId', 'message', 'signature']))
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return cb(new ClientError('Required argument missing'));
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var server = new WalletService();
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server.storage.fetchCopayerLookup(opts.copayerId, function(err, copayer) {
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if (err) return cb(err);
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if (!copayer) return cb(new ClientError('NOTAUTHORIZED', 'Copayer not found'));
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var pubKey = opts.readOnly ? copayer.roPubKey : copayer.rwPubKey;
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var isValid = server._verifySignature(opts.message, opts.signature, pubKey);
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if (!isValid)
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return cb(new ClientError('NOTAUTHORIZED', 'Invalid signature'));
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server.copayerId = opts.copayerId;
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server.walletId = copayer.walletId;
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return cb(null, server);
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});
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};
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/**
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* Creates a new wallet.
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* @param {Object} opts
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* @param {string} opts.id - The wallet id.
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* @param {string} opts.name - The wallet name.
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* @param {number} opts.m - Required copayers.
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* @param {number} opts.n - Total copayers.
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* @param {string} opts.pubKey - Public key to verify copayers joining have access to the wallet secret.
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* @param {string} [opts.network = 'livenet'] - The Bitcoin network for this wallet.
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*/
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WalletService.prototype.createWallet = function(opts, cb) {
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var self = this,
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pubKey;
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if (!Utils.checkRequired(opts, ['name', 'm', 'n', 'pubKey']))
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return cb(new ClientError('Required argument missing'));
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if (_.isEmpty(opts.name)) return cb(new ClientError('Invalid wallet name'));
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if (!Wallet.verifyCopayerLimits(opts.m, opts.n))
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return cb(new ClientError('Invalid combination of required copayers / total copayers'));
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var network = opts.network || 'livenet';
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if (network != 'livenet' && network != 'testnet')
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return cb(new ClientError('Invalid network'));
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try {
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pubKey = new PublicKey.fromString(opts.pubKey);
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} catch (e) {
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return cb(e.toString());
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};
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var wallet = Wallet.create({
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name: opts.name,
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m: opts.m,
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n: opts.n,
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network: network,
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pubKey: pubKey.toString(),
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});
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self.storage.storeWallet(wallet, function(err) {
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log.debug('Wallet created', wallet.id, network);
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return cb(err, wallet.id);
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});
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};
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/**
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* Retrieves a wallet from storage.
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* @param {Object} opts
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* @returns {Object} wallet
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*/
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WalletService.prototype.getWallet = function(opts, cb) {
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var self = this;
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self.storage.fetchWallet(self.walletId, function(err, wallet) {
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if (err) return cb(err);
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if (!wallet) return cb(new ClientError('Wallet not found'));
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return cb(null, wallet);
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});
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};
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/**
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* Verifies a signature
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* @param text
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* @param signature
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* @param pubKey
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*/
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WalletService.prototype._verifySignature = function(text, signature, pubKey) {
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return WalletUtils.verifyMessage(text, signature, pubKey);
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};
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/**
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* _notify
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*
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* @param type
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* @param data
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*/
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WalletService.prototype._notify = function(type, data) {
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var self = this;
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log.debug('Notification', type, data);
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var walletId = self.walletId || data.walletId;
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$.checkState(walletId);
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var n = Notification.create({
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type: type,
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data: data,
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ticker: this.notifyTicker++,
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});
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this.storage.storeNotification(walletId, n, function() {
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self.emit(n);
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});
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};
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/**
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* Joins a wallet in creation.
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* @param {Object} opts
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* @param {string} opts.walletId - The wallet id.
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* @param {string} opts.name - The copayer name.
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* @param {number} opts.xPubKey - Extended Public Key for this copayer.
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* @param {number} opts.xPubKeySignature - Signature of xPubKey using the wallet pubKey.
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*/
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WalletService.prototype.joinWallet = function(opts, cb) {
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var self = this;
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if (!Utils.checkRequired(opts, ['walletId', 'name', 'xPubKey', 'xPubKeySignature']))
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return cb(new ClientError('Required argument missing'));
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if (_.isEmpty(opts.name))
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return cb(new ClientError('Invalid copayer name'));
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Utils.runLocked(opts.walletId, cb, function(cb) {
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self.storage.fetchWallet(opts.walletId, function(err, wallet) {
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if (err) return cb(err);
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if (!wallet) return cb(new ClientError('Wallet not found'));
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if (!self._verifySignature(opts.xPubKey, opts.xPubKeySignature, wallet.pubKey)) {
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return cb(new ClientError());
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}
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if (_.find(wallet.copayers, {
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xPubKey: opts.xPubKey
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})) return cb(new ClientError('CINWALLET', 'Copayer already in wallet'));
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if (wallet.copayers.length == wallet.n)
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return cb(new ClientError('WFULL', 'Wallet full'));
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var copayer = Copayer.create({
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name: opts.name,
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xPubKey: opts.xPubKey,
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xPubKeySignature: opts.xPubKeySignature,
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copayerIndex: wallet.copayers.length,
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});
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self.storage.fetchCopayerLookup(copayer.id, function(err, res) {
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if (err) return cb(err);
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if (res)
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return cb(new ClientError('CREGISTERED', 'Copayer ID already registered on server'));
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wallet.addCopayer(copayer);
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self.storage.storeWalletAndUpdateCopayersLookup(wallet, function(err) {
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if (err) return cb(err);
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self._notify('NewCopayer', {
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walletId: opts.walletId,
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copayerId: copayer.id,
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copayerName: copayer.name,
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});
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return cb(null, {
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copayerId: copayer.id,
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wallet: wallet
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});
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});
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});
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});
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});
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};
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/**
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* Creates a new address.
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* @param {Object} opts
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* @returns {Address} address
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*/
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WalletService.prototype.createAddress = function(opts, cb) {
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var self = this;
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Utils.runLocked(self.walletId, cb, function(cb) {
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self.getWallet({}, function(err, wallet) {
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if (err) return cb(err);
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if (!wallet.isComplete())
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return cb(new ClientError('Wallet is not complete'));
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var address = wallet.createAddress(false);
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self.storage.storeAddressAndWallet(wallet, address, function(err) {
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if (err) return cb(err);
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self._notify('NewAddress');
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return cb(null, address);
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});
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});
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});
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};
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/**
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* Get all addresses.
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* @param {Object} opts
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* @returns {Address[]}
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*/
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WalletService.prototype.getMainAddresses = function(opts, cb) {
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var self = this;
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self.storage.fetchAddresses(self.walletId, function(err, addresses) {
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if (err) return cb(err);
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var onlyMain = _.reject(addresses, {
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isChange: true
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});
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return cb(null, onlyMain);
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});
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};
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/**
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* Verifies that a given message was actually sent by an authorized copayer.
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* @param {Object} opts
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* @param {string} opts.message - The message to verify.
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* @param {string} opts.signature - The signature of message to verify.
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* @returns {truthy} The result of the verification.
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*/
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WalletService.prototype.verifyMessageSignature = function(opts, cb) {
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var self = this;
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if (!Utils.checkRequired(opts, ['message', 'signature']))
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return cb(new ClientError('Required argument missing'));
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self.getWallet({}, function(err, wallet) {
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if (err) return cb(err);
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var copayer = wallet.getCopayer(self.copayerId);
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var isValid = self._verifySignature(opts.message, opts.signature, copayer.rwPubKey);
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return cb(null, isValid);
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});
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};
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WalletService.prototype._getBlockExplorer = function(provider, network) {
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var url;
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function getTransactionsInsight(url, addresses, cb) {
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var request = require('request');
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request({
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method: "POST",
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url: url + '/api/addrs/txs',
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json: {
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addrs: [].concat(addresses).join(',')
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}
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}, function(err, res, body) {
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if (err || res.statusCode != 200) return cb(err || res);
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return cb(null, body);
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});
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};
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if (this.blockExplorer)
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return this.blockExplorer;
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switch (provider) {
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default:
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case 'insight':
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switch (network) {
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default:
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case 'livenet':
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url = 'https://insight.bitpay.com:443';
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break;
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case 'testnet':
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url = 'https://test-insight.bitpay.com:443'
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break;
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}
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var bc = new Explorers.Insight(url, network);
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bc.getTransactions = _.bind(getTransactionsInsight, bc, url);
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return bc;
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break;
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}
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};
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/**
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* _getUtxos
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*
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*/
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WalletService.prototype._getUtxos = function(cb) {
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var self = this;
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// Get addresses for this wallet
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self.storage.fetchAddresses(self.walletId, function(err, addresses) {
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if (err) return cb(err);
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if (addresses.length == 0)
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return cb(null, []);
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var addressStrs = _.pluck(addresses, 'address');
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var addressToPath = _.indexBy(addresses, 'address'); // TODO : check performance
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var networkName = Bitcore.Address(addressStrs[0]).toObject().network;
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var bc = self._getBlockExplorer('insight', networkName);
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bc.getUnspentUtxos(addressStrs, function(err, inutxos) {
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if (err) return cb(err);
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var utxos = _.map(inutxos, function(i) {
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return _.pick(i.toObject(), ['txid', 'vout', 'address', 'scriptPubKey', 'amount', 'satoshis']);
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});
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self.getPendingTxs({}, function(err, txps) {
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if (err) return cb(err);
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var utxoKey = function(utxo) {
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return utxo.txid + '|' + utxo.vout
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};
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var inputs = _.chain(txps)
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.pluck('inputs')
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.flatten()
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.map(utxoKey)
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.value();
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var dictionary = _.reduce(utxos, function(memo, utxo) {
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memo[utxoKey(utxo)] = utxo;
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return memo;
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}, {});
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_.each(inputs, function(input) {
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if (dictionary[input]) {
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dictionary[input].locked = true;
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}
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});
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// Needed for the clients to sign UTXOs
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_.each(utxos, function(utxo) {
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utxo.satoshis = utxo.satoshis ? +utxo.satoshis : Utils.strip(utxo.amount * 1e8);
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delete utxo.amount;
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utxo.path = addressToPath[utxo.address].path;
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utxo.publicKeys = addressToPath[utxo.address].publicKeys;
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});
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return cb(null, utxos);
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});
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});
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});
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};
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/**
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* Creates a new transaction proposal.
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* @param {Object} opts
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* @returns {Object} balance - Total amount & locked amount.
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*/
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WalletService.prototype.getBalance = function(opts, cb) {
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var self = this;
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self._getUtxos(function(err, utxos) {
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if (err) return cb(err);
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var balance = {};
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balance.totalAmount = Utils.strip(_.reduce(utxos, function(sum, utxo) {
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return sum + utxo.satoshis;
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}, 0));
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balance.lockedAmount = Utils.strip(_.reduce(_.filter(utxos, {
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locked: true
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}), function(sum, utxo) {
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return sum + utxo.satoshis;
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}, 0));
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return cb(null, balance);
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});
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};
|
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WalletService.prototype._selectUtxos = function(txp, utxos) {
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var i = 0;
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var total = 0;
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var selected = [];
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var inputs = _.sortBy(utxos, 'amount');
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while (i < inputs.length) {
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selected.push(inputs[i]);
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total += inputs[i].satoshis;
|
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if (total >= txp.amount + Bitcore.Transaction.FEE_PER_KB) {
|
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try {
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// Check if there are enough fees
|
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txp.inputs = selected;
|
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var raw = txp.getRawTx();
|
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return;
|
||
} catch (ex) {
|
||
if (ex.name != 'bitcore.ErrorTransactionFeeError') {
|
||
throw ex.message;
|
||
}
|
||
}
|
||
}
|
||
i++;
|
||
};
|
||
txp.inputs = null;
|
||
return;
|
||
};
|
||
|
||
|
||
/**
|
||
* Creates a new transaction proposal.
|
||
* @param {Object} opts
|
||
* @param {string} opts.toAddress - Destination address.
|
||
* @param {number} opts.amount - Amount to transfer in satoshi.
|
||
* @param {string} opts.message - A message to attach to this transaction.
|
||
* @param {string} opts.proposalSignature - S(toAddress + '|' + amount + '|' + message). Used by other copayers to verify the proposal. Optional in 1-of-1 wallets.
|
||
* @returns {TxProposal} Transaction proposal.
|
||
*/
|
||
WalletService.prototype.createTx = function(opts, cb) {
|
||
var self = this;
|
||
|
||
if (!Utils.checkRequired(opts, ['toAddress', 'amount', 'proposalSignature']))
|
||
return cb(new ClientError('Required argument missing'));
|
||
|
||
Utils.runLocked(self.walletId, cb, function(cb) {
|
||
self.getWallet({}, function(err, wallet) {
|
||
if (err) return cb(err);
|
||
if (!wallet.isComplete()) return cb(new ClientError('Wallet is not complete'));
|
||
|
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var copayer = wallet.getCopayer(self.copayerId);
|
||
var hash = WalletUtils.getProposalHash(opts.toAddress, opts.amount, opts.message);
|
||
if (!self._verifySignature(hash, opts.proposalSignature, copayer.rwPubKey))
|
||
return cb(new ClientError('Invalid proposal signature'));
|
||
|
||
var toAddress;
|
||
try {
|
||
toAddress = new Bitcore.Address(opts.toAddress);
|
||
} catch (ex) {
|
||
return cb(new ClientError('INVALIDADDRESS', 'Invalid address'));
|
||
}
|
||
if (toAddress.network != wallet.getNetworkName())
|
||
return cb(new ClientError('INVALIDADDRESS', 'Incorrect address network'));
|
||
|
||
if (opts.amount < Bitcore.Transaction.DUST_AMOUNT)
|
||
return cb(new ClientError('DUSTAMOUNT', 'Amount below dust threshold'));
|
||
|
||
self._getUtxos(function(err, utxos) {
|
||
if (err) return cb(err);
|
||
|
||
var changeAddress = wallet.createAddress(true);
|
||
|
||
utxos = _.reject(utxos, {
|
||
locked: true
|
||
});
|
||
|
||
var txp = TxProposal.create({
|
||
creatorId: self.copayerId,
|
||
toAddress: opts.toAddress,
|
||
amount: opts.amount,
|
||
message: opts.message,
|
||
proposalSignature: opts.proposalSignature,
|
||
changeAddress: changeAddress,
|
||
requiredSignatures: wallet.m,
|
||
requiredRejections: Math.min(wallet.m, wallet.n - wallet.m + 1),
|
||
});
|
||
|
||
try {
|
||
self._selectUtxos(txp, utxos);
|
||
} catch (ex) {
|
||
console.log('[server.js.523:ex:]', ex); //TODO
|
||
return cb(new ClientError(ex));
|
||
}
|
||
|
||
if (!txp.inputs)
|
||
return cb(new ClientError('INSUFFICIENTFUNDS', 'Insufficient funds'));
|
||
|
||
txp.inputPaths = _.pluck(txp.inputs, 'path');
|
||
|
||
self.storage.storeAddressAndWallet(wallet, 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: opts.amount
|
||
});
|
||
return cb(null, txp);
|
||
});
|
||
});
|
||
});
|
||
});
|
||
});
|
||
};
|
||
|
||
/**
|
||
* Retrieves a tx from storage.
|
||
* @param {Object} opts
|
||
* @param {string} opts.id - The tx id.
|
||
* @returns {Object} txProposal
|
||
*/
|
||
WalletService.prototype.getTx = function(opts, cb) {
|
||
var self = this;
|
||
|
||
self.storage.fetchTx(self.walletId, opts.id, 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;
|
||
|
||
Utils.runLocked(self.walletId, cb, function(cb) {
|
||
self.storage.removeWallet(self.walletId, cb);
|
||
});
|
||
};
|
||
|
||
/**
|
||
* 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'));
|
||
|
||
Utils.runLocked(self.walletId, cb, function(cb) {
|
||
|
||
self.getTx({
|
||
id: opts.txProposalId,
|
||
}, function(err, txp) {
|
||
if (err) return cb(err);
|
||
|
||
if (!txp.isPending())
|
||
return cb(new ClientError('Transaction proposal not pending'));
|
||
|
||
|
||
if (txp.creatorId !== self.copayerId)
|
||
return cb(new ClientError('Only creators can remove pending proposals'));
|
||
|
||
var actors = txp.getActors();
|
||
|
||
if (actors.length > 1 || (actors.length == 1 && actors[0] !== self.copayerId))
|
||
return cb(new ClientError('Cannot remove a proposal signed/rejected by other copayers'));
|
||
|
||
self._notify('transactionProposalRemoved');
|
||
self.storage.removeTx(self.walletId, txp.id, cb);
|
||
});
|
||
});
|
||
};
|
||
|
||
|
||
WalletService.prototype._broadcastTx = function(txp, cb) {
|
||
var raw;
|
||
try {
|
||
raw = txp.getRawTx();
|
||
} catch (ex) {
|
||
return cb(ex);
|
||
}
|
||
var bc = this._getBlockExplorer('insight', txp.getNetworkName());
|
||
bc.broadcast(raw, function(err, txid) {
|
||
return cb(err, txid);
|
||
})
|
||
};
|
||
|
||
/**
|
||
* 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({
|
||
id: 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'));
|
||
|
||
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);
|
||
|
||
self._notify('TxProposalAcceptedBy', {
|
||
txProposalId: opts.txProposalId,
|
||
copayerId: self.copayerId,
|
||
});
|
||
|
||
// TODO: replace with .isAccepted()
|
||
if (txp.status == 'accepted') {
|
||
|
||
self._notify('TxProposalFinallyAccepted', {
|
||
txProposalId: opts.txProposalId,
|
||
});
|
||
|
||
self._broadcastTx(txp, function(err, txid) {
|
||
if (err) return cb(err);
|
||
|
||
txp.setBroadcasted(txid);
|
||
self.storage.storeTx(self.walletId, txp, function(err) {
|
||
if (err) return cb(err);
|
||
|
||
self._notify('NewOutgoingTx', {
|
||
txProposalId: opts.txProposalId,
|
||
txid: txid
|
||
});
|
||
return cb(null, txp);
|
||
});
|
||
});
|
||
} else {
|
||
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'));
|
||
|
||
self.getWallet({}, function(err, wallet) {
|
||
if (err) return cb(err);
|
||
|
||
self.getTx({
|
||
id: 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) return cb(err);
|
||
|
||
txp.setBroadcasted(txid);
|
||
self.storage.storeTx(self.walletId, txp, function(err) {
|
||
if (err) return cb(err);
|
||
|
||
self._notify('NewOutgoingTx', {
|
||
txProposalId: opts.txProposalId,
|
||
txid: txid
|
||
});
|
||
|
||
return cb(null, txid);
|
||
});
|
||
});
|
||
});
|
||
});
|
||
};
|
||
|
||
/**
|
||
* 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({
|
||
id: 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);
|
||
|
||
self._notify('TxProposalRejectedBy', {
|
||
txProposalId: opts.txProposalId,
|
||
copayerId: self.copayerId,
|
||
});
|
||
|
||
|
||
if (txp.status == 'rejected') {
|
||
self._notify('TxProposalFinallyRejected', {
|
||
txProposalId: opts.txProposalId,
|
||
});
|
||
};
|
||
|
||
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);
|
||
|
||
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, first newer
|
||
*/
|
||
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) 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, first newer
|
||
*/
|
||
WalletService.prototype.getTxHistory = function(opts, cb) {
|
||
var self = this;
|
||
|
||
function decorate(txs, addresses, proposals) {
|
||
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);
|
||
};
|
||
|
||
var indexedAddresses = _.indexBy(addresses, 'address');
|
||
var indexedProposals = _.indexBy(proposals, 'txid');
|
||
|
||
_.each(txs, function(tx) {
|
||
_.each(tx.inputs.concat(tx.outputs), function(item) {
|
||
var address = indexedAddresses[item.address];
|
||
item.isMine = !!address;
|
||
item.isChange = address ? address.isChange : false;
|
||
});
|
||
|
||
var amountIn = sum(tx.inputs, true);
|
||
var amountOut = sum(tx.outputs, true, false);
|
||
var amountOutChange = sum(tx.outputs, true, true);
|
||
var amount;
|
||
if (amountIn == (amountOut + amountOutChange + (amountIn > 0 ? tx.fees : 0))) {
|
||
tx.action = 'moved';
|
||
amount = amountOut;
|
||
} else {
|
||
amount = amountIn - amountOut - amountOutChange - (amountIn > 0 ? tx.fees : 0);
|
||
tx.action = amount > 0 ? 'sent' : 'received';
|
||
}
|
||
|
||
tx.amount = Math.abs(amount);
|
||
if (tx.action == 'sent' || tx.action == 'moved') {
|
||
tx.addressTo = tx.outputs[0].address;
|
||
};
|
||
|
||
delete tx.inputs;
|
||
delete tx.outputs;
|
||
|
||
var proposal = indexedProposals[tx.txid];
|
||
if (proposal) {
|
||
tx.proposalId = proposal.id;
|
||
tx.creatorName = proposal.creatorName;
|
||
tx.message = proposal.message;
|
||
tx.actions = _.map(proposal.actions, function(action) {
|
||
return _.pick(action, ['createdOn', 'type', 'copayerId', 'copayerName', 'comment']);
|
||
});
|
||
// tx.sentTs = proposal.sentTs;
|
||
// tx.merchant = proposal.merchant;
|
||
//tx.paymentAckMemo = proposal.paymentAckMemo;
|
||
}
|
||
});
|
||
};
|
||
|
||
function paginate(txs) {
|
||
// TODO
|
||
};
|
||
|
||
// 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._getBlockExplorer('insight', networkName);
|
||
async.parallel([
|
||
|
||
function(next) {
|
||
self.storage.fetchTxs(self.walletId, opts, function(err, txps) {
|
||
if (err) return next(err);
|
||
next(null, txps);
|
||
});
|
||
},
|
||
function(next) {
|
||
bc.getTransactions(addressStrs, function(err, txs) {
|
||
if (err) return next(err);
|
||
|
||
next(null, self._normalizeTxHistory(txs));
|
||
});
|
||
},
|
||
], function(err, res) {
|
||
if (err) return cb(err);
|
||
|
||
var proposals = res[0];
|
||
var txs = res[1];
|
||
|
||
decorate(txs, addresses, proposals);
|
||
paginate(txs);
|
||
|
||
return cb(null, txs);
|
||
});
|
||
});
|
||
};
|
||
|
||
|
||
module.exports = WalletService;
|
||
module.exports.ClientError = ClientError;
|