1829 lines
43 KiB
JavaScript
1829 lines
43 KiB
JavaScript
/*!
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* txdb.js - persistent transaction pool
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* Copyright (c) 2014-2015, Fedor Indutny (MIT License)
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* Copyright (c) 2014-2016, Christopher Jeffrey (MIT License).
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* https://github.com/indutny/bcoin
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*/
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/*
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* Database Layout:
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* t/[hash] -> extended tx
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* c/[hash]/[index] -> coin
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* s/[hash]/[index] -> spent by hash
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* o/[hash]/[index] -> orphan inputs
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* p/[hash] -> dummy (pending flag)
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* m/[time]/[hash] -> dummy (tx by time)
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* h/[height]/[hash] -> dummy (tx by height)
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* T/[id]/[hash] -> dummy (tx by wallet id)
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* P/[id]/[hash] -> dummy (pending tx by wallet id)
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* M/[id]/[time]/[hash] -> dummy (tx by time + id)
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* H/[id]/[height]/[hash] -> dummy (tx by height + id)
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* C/[id]/[hash]/[index] -> dummy (coin by address)
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*/
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var bcoin = require('./env');
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var utils = require('./utils');
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var assert = bcoin.utils.assert;
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var EventEmitter = require('events').EventEmitter;
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var DUMMY = new Buffer([0]);
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var pad32 = utils.pad32;
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var BufferReader = require('./reader');
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var BufferWriter = require('./writer');
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/**
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* TXDB
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* @exports TXDB
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* @constructor
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* @param {LowlevelUp} db
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* @param {Object?} options
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* @param {Boolean?} options.mapAddress - Map addresses to IDs.
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* @param {Boolean?} options.indexAddress - Index addresses/IDs.
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* @param {Boolean?} options.indexExtra - Index timestamps, heights, etc.
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* @param {Boolean?} options.verify - Verify transactions as they
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* come in (note that this will not happen on the worker pool).
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*/
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function TXDB(db, options) {
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if (!(this instanceof TXDB))
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return new TXDB(db, options);
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EventEmitter.call(this);
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if (!options)
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options = {};
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this.db = db;
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this.options = options;
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this.network = bcoin.network.get(options.network);
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this.busy = false;
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this.jobs = [];
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this.locker = new bcoin.locker(this);
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this.filter = this.options.useFilter
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? new bcoin.bloom.rolling(800000, 0.01)
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: null;
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if (this.options.mapAddress)
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this.options.indexAddress = true;
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}
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utils.inherits(TXDB, EventEmitter);
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TXDB.prototype._lock = function _lock(func, args, force) {
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return this.locker.lock(func, args, force);
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};
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TXDB.prototype._loadFilter = function loadFilter(callback) {
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var self = this;
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var i;
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if (!this.filter)
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return callback();
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this.db.iterate({
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gte: 'W',
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lte: 'W~',
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transform: function(key) {
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return key.split('/')[1];
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}
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}, function(err, keys) {
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if (err)
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return callback(err);
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for (i = 0; i < keys.length; i++)
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self.filter.add(keys[i], 'hex');
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return callback();
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});
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};
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TXDB.prototype._testFilter = function _testFilter(addresses) {
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var i;
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if (!this.filter)
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return true;
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for (i = 0; i < addresses.length; i++) {
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if (this.filter.test(addresses[i], 'hex'))
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return true;
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}
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return false;
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};
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/**
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* Map a transactions' addresses to wallet IDs.
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* @param {TX} tx
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* @param {Function} callback - Returns [Error, {@link AddressMap}].
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*/
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TXDB.prototype.getMap = function getMap(tx, callback) {
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var input, output, addresses, table, map;
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if (!this.options.indexAddress)
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return callback();
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input = tx.getInputHashes();
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output = tx.getOutputHashes();
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addresses = utils.uniq(input.concat(output));
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if (!this._testFilter(addresses))
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return callback();
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function cb(err, table) {
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if (err)
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return callback(err);
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map = {
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table: table,
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input: [],
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output: [],
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all: []
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};
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input.forEach(function(address) {
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assert(map.table[address]);
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map.input = map.input.concat(map.table[address]);
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});
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output.forEach(function(address) {
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assert(map.table[address]);
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map.output = map.output.concat(map.table[address]);
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});
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map.input = utils.uniq(map.input);
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map.output = utils.uniq(map.output);
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map.all = utils.uniq(map.input.concat(map.output));
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return callback(null, map);
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}
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if (!this.options.mapAddress) {
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table = addresses.reduce(function(out, address) {
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out[address] = [address];
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return out;
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}, {});
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return cb(null, table);
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}
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return this.mapAddresses(addresses, cb);
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};
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/**
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* Map an address to a wallet ID.
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* @param {Base58Address|Base58Address[]} address
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* @param {Function} callback - Returns [Error, {@link AddressTable}].
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*/
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TXDB.prototype.mapAddresses = function mapAddresses(address, callback) {
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var self = this;
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var table = {};
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if (Array.isArray(address)) {
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return utils.forEachSerial(address, function(address, next) {
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self.mapAddresses(address, function(err, res) {
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if (err)
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return next(err);
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assert(res[address]);
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table[address] = res[address];
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next();
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});
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}, function(err) {
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if (err)
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return callback(err);
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return callback(null, table);
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});
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}
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this.db.iterate({
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gte: 'W/' + address,
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lte: 'W/' + address + '~',
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transform: function(key) {
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return key.split('/')[2];
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}
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}, function(err, keys) {
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if (err)
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return callback(err);
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table[address] = keys;
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return callback(null, table);
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});
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};
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/**
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* Add an orphan (tx hash + input index)
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* to orphan list. Stored by its required coin ID.
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* @private
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* @param {String} key - Required coin hash + index.
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* @param {Hash} hash - Orphan transaction hash.
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* @param {Number} index - Orphan input index.
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* @param {Function} callback - Returns [Error, Buffer].
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*/
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TXDB.prototype._addOrphan = function _addOrphan(key, hash, index, callback) {
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var p;
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this.db.get('o/' + key, function(err, buf) {
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if (err && err.type !== 'NotFoundError')
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return callback(err);
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p = new BufferWriter();
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if (buf)
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p.writeBytes(buf);
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p.writeHash(hash);
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p.writeU32(index);
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return callback(null, p.render());
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});
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};
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/**
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* Retrieve orphan list by coin ID.
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* @private
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* @param {String} key
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* @param {Function} callback - Returns [Error, {@link Orphan}].
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*/
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TXDB.prototype._getOrphans = function _getOrphans(key, callback) {
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var self = this;
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this.db.fetch('o/' + key, function(buf) {
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var p = new BufferReader(buf);
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var orphans = [];
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while (p.left()) {
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orphans.push({
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hash: p.readHash('hex'),
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index: p.readU32()
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});
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}
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return orphans;
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}, function(err, orphans) {
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if (err)
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return callback(err);
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if (!orphans)
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return callback();
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utils.forEach(orphans, function(orphan, next) {
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self.getTX(orphan.hash, function(err, tx) {
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if (err)
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return next(err);
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orphan.tx = tx;
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next();
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});
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}, function(err) {
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if (err)
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return callback(err);
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return callback(null, orphans);
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});
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});
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};
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/**
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* Add a transaction to the database, map addresses
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* to wallet IDs, potentially store orphans, resolve
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* orphans, or confirm a transaction.
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* @param {TX} tx
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* @param {Function} callback - Returns [Error].
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*/
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TXDB.prototype.add = function add(tx, callback, force) {
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var self = this;
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if (Array.isArray(tx)) {
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return utils.forEachSerial(tx, function(tx, next) {
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self.add(tx, next, force);
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}, callback);
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}
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return this.getMap(tx, function(err, map) {
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if (err)
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return callback(err);
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if (!map)
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return callback(null, false);
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if (self.options.mapAddress) {
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if (map.all.length === 0)
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return callback(null, false);
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}
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return self._add(tx, map, callback, force);
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});
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};
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// This big scary function is what a persistent tx pool
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// looks like. It's a semi mempool in that it can handle
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// receiving txs out of order.
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TXDB.prototype._add = function add(tx, map, callback, force) {
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var self = this;
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var hash = tx.hash('hex');
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var updated = false;
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var batch;
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assert(tx.ts > 0 || tx.ps > 0);
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var unlock = this._lock(add, [tx, map, callback], force);
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if (!unlock)
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return;
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callback = utils.wrap(callback, unlock);
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if (tx.mutable)
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tx = tx.toTX();
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// Attempt to confirm tx before adding it.
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this._confirm(tx, map, function(err, existing) {
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if (err)
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return callback(err);
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// Ignore if we already have this tx.
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if (existing)
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return callback(null, true);
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batch = self.db.batch();
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batch.put('t/' + hash, tx.toExtended());
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if (self.options.indexExtra) {
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if (tx.ts === 0) {
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assert(tx.ps > 0);
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batch.put('p/' + hash, DUMMY);
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batch.put('m/' + pad32(tx.ps) + '/' + hash, DUMMY);
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} else {
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batch.put('h/' + pad32(tx.height) + '/' + hash, DUMMY);
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batch.put('m/' + pad32(tx.ts) + '/' + hash, DUMMY);
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}
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if (self.options.indexAddress) {
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map.all.forEach(function(id) {
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batch.put('T/' + id + '/' + hash, DUMMY);
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if (tx.ts === 0) {
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batch.put('P/' + id + '/' + hash, DUMMY);
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batch.put('M/' + id + '/' + pad32(tx.ps) + '/' + hash, DUMMY);
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} else {
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batch.put('H/' + id + '/' + pad32(tx.height) + '/' + hash, DUMMY);
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batch.put('M/' + id + '/' + pad32(tx.ts) + '/' + hash, DUMMY);
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}
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});
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}
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}
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// Consume unspent money or add orphans
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utils.forEachSerial(tx.inputs, function(input, next, i) {
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var key, address;
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if (tx.isCoinbase())
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return next();
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address = input.getHash();
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// Only add orphans if this input is ours.
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if (self.options.mapAddress) {
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if (!address || !map.table[address].length)
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return next();
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}
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self.getCoin(input.prevout.hash, input.prevout.index, function(err, coin) {
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if (err)
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return next(err);
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key = input.prevout.hash + '/' + input.prevout.index;
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if (coin) {
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// Add TX to inputs and spend money
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input.coin = coin;
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// Skip invalid transactions
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if (self.options.verify) {
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if (!tx.verify(i))
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return callback(null, false);
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}
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updated = true;
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if (self.options.indexAddress && address) {
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map.table[address].forEach(function(id) {
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batch.del('C/' + id + '/' + key);
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});
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}
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batch.del('c/' + key);
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batch.put('s/' + key, tx.hash());
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return next();
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}
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input.coin = null;
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self.isSpent(input.prevout.hash, input.prevout.index, function(err, spentBy) {
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if (err)
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return next(err);
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// Are we double-spending?
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// Replace older txs with newer ones.
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if (spentBy) {
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return self.getTX(input.prevout.hash, function(err, prev) {
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if (err)
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return next(err);
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if (!prev)
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return callback(new Error('Could not find double-spent coin.'));
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input.coin = bcoin.coin.fromTX(prev, input.prevout.index);
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// Skip invalid transactions
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if (self.options.verify) {
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if (!tx.verify(i))
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return callback(null, false);
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}
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return self._removeSpenders(spentBy, tx, function(err, result) {
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if (err)
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return next(err);
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if (!result) {
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assert(tx.ts === 0, 'I\'m confused');
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return callback(null, false);
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}
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batch.clear();
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self._add(tx, map, callback, true);
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});
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});
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}
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// Add orphan, if no parent transaction is yet known
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self._addOrphan(key, hash, i, function(err, orphans) {
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if (err)
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return next(err);
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batch.put('o/' + key, orphans);
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return next();
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});
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});
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});
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}, function(err) {
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if (err)
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return callback(err);
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// Add unspent outputs or resolve orphans
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utils.forEachSerial(tx.outputs, function(output, next, i) {
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var address = output.getHash();
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var key, coin;
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// Do not add unspents for outputs that aren't ours.
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if (self.options.mapAddress) {
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if (!address || !map.table[address].length)
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return next();
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}
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key = hash + '/' + i;
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if (output.script.isUnspendable())
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return next();
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coin = bcoin.coin.fromTX(tx, i);
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self._getOrphans(key, function(err, orphans) {
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var some = false;
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if (err)
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return callback(err);
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if (!orphans)
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return finish();
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// Add input to orphan
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utils.forEachSerial(orphans, function(orphan, next) {
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if (some)
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return next();
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// Probably removed by some other means.
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if (!orphan.tx)
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return next();
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orphan.tx.inputs[orphan.index].coin = coin;
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assert(orphan.tx.inputs[orphan.index].prevout.hash === hash);
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assert(orphan.tx.inputs[orphan.index].prevout.index === i);
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|
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// Verify that input script is correct, if not - add
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// output to unspent and remove orphan from storage
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if (!self.options.verify) {
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some = true;
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return next();
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}
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if (orphan.tx.verify(orphan.index)) {
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some = true;
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return next();
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}
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self.lazyRemove(orphan.tx, function(err) {
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if (err)
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return next(err);
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return next();
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}, true);
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}, function(err) {
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if (err)
|
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return next(err);
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if (!some)
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orphans = null;
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self.db.del('o/' + key, finish);
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});
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function finish(err) {
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if (err)
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return next(err);
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if (!orphans) {
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if (self.options.indexAddress && address) {
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map.table[address].forEach(function(id) {
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batch.put('C/' + id + '/' + key, DUMMY);
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});
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}
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batch.put('c/' + key, coin.toRaw());
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updated = true;
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}
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next();
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}
|
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});
|
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}, function(err) {
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if (err)
|
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return callback(err);
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|
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batch.write(function(err) {
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if (err)
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return callback(err);
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self.emit('tx', tx, map);
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if (updated) {
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if (tx.ts !== 0)
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self.emit('confirmed', tx, map);
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self.emit('updated', tx, map);
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}
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return callback(null, true);
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});
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});
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});
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}, true);
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};
|
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|
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/**
|
|
* Remove spenders that have not been confirmed. We do this in the
|
|
* odd case of stuck transactions or when a coin is double-spent
|
|
* by a newer transaction. All previously-spending transactions
|
|
* of that coin that are _not_ confirmed will be removed from
|
|
* the database.
|
|
* @private
|
|
* @param {Hash} hash
|
|
* @param {TX} ref - Reference tx, the tx that double-spent.
|
|
* @param {Function} callback - Returns [Error, Boolean].
|
|
*/
|
|
|
|
TXDB.prototype._removeSpenders = function removeSpenders(hash, ref, callback) {
|
|
var self = this;
|
|
this.getTX(hash, function(err, tx) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
if (!tx)
|
|
return callback(new Error('Could not find spender.'));
|
|
|
|
if (tx.ts !== 0)
|
|
return callback(null, false);
|
|
|
|
if (ref.ts === 0 && ref.ps < tx.ps)
|
|
return callback(null, false);
|
|
|
|
utils.forEachSerial(tx.outputs, function(output, next, i) {
|
|
self.isSpent(hash, i, function(err, spent) {
|
|
if (err)
|
|
return next(err);
|
|
if (spent)
|
|
return self._removeSpenders(spent, ref, next);
|
|
next();
|
|
});
|
|
}, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
return self.lazyRemove(tx, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
return callback(null, true);
|
|
}, true);
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Test an entire transaction to see
|
|
* if any of its outpoints are a double-spend.
|
|
* @param {TX} tx
|
|
* @param {Function} callback - Returns [Error, Boolean].
|
|
*/
|
|
|
|
TXDB.prototype.isDoubleSpend = function isDoubleSpend(tx, callback) {
|
|
var self = this;
|
|
utils.everySerial(tx.inputs, function(input, next) {
|
|
self.isSpent(input.prevout.hash, input.prevout.index, function(err, spent) {
|
|
if (err)
|
|
return next(err);
|
|
return next(null, !spent);
|
|
});
|
|
}, function(err, result) {
|
|
if (err)
|
|
return callback(err);
|
|
return callback(null, !result);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Test a whether a coin has been spent.
|
|
* @param {Hash} hash
|
|
* @param {Number} index
|
|
* @param {Function} callback - Returns [Error, Boolean].
|
|
*/
|
|
|
|
TXDB.prototype.isSpent = function isSpent(hash, index, callback) {
|
|
var key = 's/' + hash + '/' + index;
|
|
return this.db.fetch(key, function(hash) {
|
|
return hash.toString('hex');
|
|
}, callback);
|
|
};
|
|
|
|
/**
|
|
* Attempt to confirm a transaction.
|
|
* @private
|
|
* @param {TX} tx
|
|
* @param {AddressMap} map
|
|
* @param {Function} callback - Returns [Error, Boolean]. `false` if
|
|
* the transaction should be added to the database, `true` if the
|
|
* transaction was confirmed, or should be ignored.
|
|
*/
|
|
|
|
TXDB.prototype._confirm = function _confirm(tx, map, callback, force) {
|
|
var self = this;
|
|
var hash = tx.hash('hex');
|
|
var batch;
|
|
|
|
var unlock = this._lock(_confirm, [tx, map, callback], force);
|
|
if (!unlock)
|
|
return;
|
|
|
|
callback = utils.wrap(callback, unlock);
|
|
|
|
this.getTX(hash, function(err, existing) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
// Haven't seen this tx before, add it.
|
|
if (!existing)
|
|
return callback(null, false);
|
|
|
|
// Existing tx is already confirmed. Ignore.
|
|
if (existing.ts !== 0)
|
|
return callback(null, true);
|
|
|
|
// The incoming tx won't confirm the existing one anyway. Ignore.
|
|
if (tx.ts === 0)
|
|
return callback(null, true);
|
|
|
|
batch = self.db.batch();
|
|
|
|
// Tricky - update the tx and coin in storage,
|
|
// and remove pending flag to mark as confirmed.
|
|
assert(tx.height >= 0);
|
|
assert(existing.ps > 0);
|
|
|
|
batch.put('t/' + hash, tx.toExtended());
|
|
|
|
if (self.options.indexExtra) {
|
|
batch.del('p/' + hash);
|
|
batch.put('h/' + pad32(tx.height) + '/' + hash, DUMMY);
|
|
batch.del('m/' + pad32(existing.ps) + '/' + hash);
|
|
batch.put('m/' + pad32(tx.ts) + '/' + hash, DUMMY);
|
|
|
|
if (self.options.indexAddress) {
|
|
map.all.forEach(function(id) {
|
|
batch.del('P/' + id + '/' + hash);
|
|
batch.put('H/' + id + '/' + pad32(tx.height) + '/' + hash, DUMMY);
|
|
batch.del('M/' + id + '/' + pad32(existing.ps) + '/' + hash);
|
|
batch.put('M/' + id + '/' + pad32(tx.ts) + '/' + hash, DUMMY);
|
|
});
|
|
}
|
|
}
|
|
|
|
utils.forEachSerial(tx.outputs, function(output, next, i) {
|
|
var address = output.getHash();
|
|
|
|
// Only update coins if this output is ours.
|
|
if (self.options.mapAddress) {
|
|
if (!address || !map.table[address].length)
|
|
return next();
|
|
}
|
|
|
|
self.getCoin(hash, i, function(err, coin) {
|
|
if (err)
|
|
return next(err);
|
|
|
|
if (!coin)
|
|
return next();
|
|
|
|
coin.height = tx.height;
|
|
|
|
batch.put('c/' + hash + '/' + i, coin.toRaw());
|
|
|
|
next();
|
|
});
|
|
}, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
batch.write(function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
self.emit('confirmed', tx, map);
|
|
self.emit('tx', tx, map);
|
|
|
|
return callback(null, true);
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Remove a transaction from the database. Disconnect inputs.
|
|
* @param {Hash} hash
|
|
* @param {Function} callback - Returns [Error].
|
|
*/
|
|
|
|
TXDB.prototype.remove = function remove(hash, callback, force) {
|
|
var self = this;
|
|
|
|
if (Array.isArray(hash)) {
|
|
return utils.forEachSerial(hash, function(hash, next) {
|
|
self.remove(hash, next, force);
|
|
}, callback);
|
|
}
|
|
|
|
if (hash.hash)
|
|
hash = hash.hash('hex');
|
|
|
|
this.getTX(hash, function(err, tx) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
if (!tx)
|
|
return callback(null, true);
|
|
|
|
assert(tx.hash('hex') === hash);
|
|
|
|
return self.getMap(tx, function(err, map) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
if (!map)
|
|
return callback(null, false);
|
|
|
|
if (self.options.mapAddress) {
|
|
if (map.all.length === 0)
|
|
return callback(null, false);
|
|
}
|
|
|
|
return self._remove(tx, map, callback, force);
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Remove a transaction from the database, but do not
|
|
* look up the transaction. Use the passed-in transaction
|
|
* to disconnect.
|
|
* @param {TX} tx
|
|
* @param {Function} callback - Returns [Error].
|
|
*/
|
|
|
|
TXDB.prototype.lazyRemove = function lazyRemove(tx, callback, force) {
|
|
var self = this;
|
|
|
|
if (Array.isArray(tx)) {
|
|
return utils.forEachSerial(tx, function(tx, next) {
|
|
self.lazyRemove(tx, next, force);
|
|
}, callback);
|
|
}
|
|
|
|
return this.getMap(tx, function(err, map) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
if (!map)
|
|
return callback(null, false);
|
|
|
|
if (self.options.mapAddress) {
|
|
if (map.all.length === 0)
|
|
return callback(null, false);
|
|
}
|
|
|
|
return self._remove(tx, map, callback, force);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Remove a transaction from the database. Disconnect inputs.
|
|
* @private
|
|
* @param {TX} tx
|
|
* @param {AddressMap} map
|
|
* @param {Function} callback - Returns [Error].
|
|
*/
|
|
|
|
TXDB.prototype._remove = function remove(tx, map, callback, force) {
|
|
var self = this;
|
|
var hash = tx.hash('hex');
|
|
var batch;
|
|
|
|
var unlock = this._lock(remove, [tx, map, callback], force);
|
|
if (!unlock)
|
|
return;
|
|
|
|
callback = utils.wrap(callback, unlock);
|
|
|
|
batch = this.db.batch();
|
|
|
|
batch.del('t/' + hash);
|
|
|
|
if (self.options.indexExtra) {
|
|
if (tx.ts === 0) {
|
|
batch.del('p/' + hash);
|
|
batch.del('m/' + pad32(tx.ps) + '/' + hash);
|
|
} else {
|
|
batch.del('h/' + pad32(tx.height) + '/' + hash);
|
|
batch.del('m/' + pad32(tx.ts) + '/' + hash);
|
|
}
|
|
|
|
if (self.options.indexAddress) {
|
|
map.all.forEach(function(id) {
|
|
batch.del('T/' + id + '/' + hash);
|
|
if (tx.ts === 0) {
|
|
batch.del('P/' + id + '/' + hash);
|
|
batch.del('M/' + id + '/' + pad32(tx.ps) + '/' + hash);
|
|
} else {
|
|
batch.del('H/' + id + '/' + pad32(tx.height) + '/' + hash);
|
|
batch.del('M/' + id + '/' + pad32(tx.ts) + '/' + hash);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
this.fillHistory(tx, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
tx.inputs.forEach(function(input) {
|
|
var key = input.prevout.hash + '/' + input.prevout.index;
|
|
var address = input.getHash();
|
|
|
|
if (tx.isCoinbase())
|
|
return;
|
|
|
|
if (!input.coin)
|
|
return;
|
|
|
|
if (self.options.mapAddress) {
|
|
if (!address || !map.table[address].length)
|
|
return;
|
|
}
|
|
|
|
if (self.options.indexAddress && address) {
|
|
map.table[address].forEach(function(id) {
|
|
batch.put('C/' + id + '/' + key, DUMMY);
|
|
});
|
|
}
|
|
|
|
batch.put('c/' + key, input.coin.toRaw());
|
|
batch.del('s/' + key);
|
|
batch.del('o/' + key);
|
|
});
|
|
|
|
tx.outputs.forEach(function(output, i) {
|
|
var key = hash + '/' + i;
|
|
var address = output.getHash();
|
|
|
|
if (self.options.mapAddress) {
|
|
if (!address || !map.table[address].length)
|
|
return;
|
|
}
|
|
|
|
if (output.script.isUnspendable())
|
|
return;
|
|
|
|
if (self.options.indexAddress && address) {
|
|
map.table[address].forEach(function(id) {
|
|
batch.del('C/' + id + '/' + key);
|
|
});
|
|
}
|
|
|
|
batch.del('c/' + key);
|
|
});
|
|
|
|
batch.write(function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
self.emit('remove tx', tx, map);
|
|
|
|
return callback(null, true);
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Unconfirm a transaction. This is usually necessary after a reorg.
|
|
* @param {Hash} hash
|
|
* @param {Function} callback
|
|
*/
|
|
|
|
TXDB.prototype.unconfirm = function unconfirm(hash, callback, force) {
|
|
var self = this;
|
|
|
|
if (Array.isArray(hash)) {
|
|
return utils.forEachSerial(hash, function(hash, next) {
|
|
self.unconfirm(hash, next, force);
|
|
}, callback);
|
|
}
|
|
|
|
if (hash.hash)
|
|
hash = hash.hash('hex');
|
|
|
|
callback = utils.ensure(callback);
|
|
|
|
this.getTX(hash, function(err, tx) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
if (!tx)
|
|
return callback(null, true);
|
|
|
|
assert(tx.hash('hex') === hash);
|
|
|
|
return self.getMap(tx, function(err, map) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
if (!map)
|
|
return callback(null, false);
|
|
|
|
if (self.options.mapAddress) {
|
|
if (map.all.length === 0)
|
|
return callback(null, false);
|
|
}
|
|
|
|
return self._unconfirm(tx, map, callback, force);
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Unconfirm a transaction. This is usually necessary after a reorg.
|
|
* @param {Hash} hash
|
|
* @param {AddressMap} map
|
|
* @param {Function} callback
|
|
*/
|
|
|
|
TXDB.prototype._unconfirm = function unconfirm(tx, map, callback, force) {
|
|
var self = this;
|
|
var hash, batch, height, ts;
|
|
|
|
var unlock = this._lock(unconfirm, [tx, map, callback], force);
|
|
if (!unlock)
|
|
return;
|
|
|
|
callback = utils.wrap(callback, unlock);
|
|
|
|
hash = tx.hash('hex');
|
|
batch = this.db.batch();
|
|
height = tx.height;
|
|
ts = tx.ts;
|
|
|
|
if (height !== -1)
|
|
return callback(null, false);
|
|
|
|
tx.height = -1;
|
|
tx.ps = utils.now();
|
|
tx.ts = 0;
|
|
tx.index = -1;
|
|
tx.block = null;
|
|
|
|
batch.put('t/' + hash, tx.toExtended());
|
|
|
|
if (self.options.indexExtra) {
|
|
batch.put('p/' + hash, DUMMY);
|
|
batch.del('h/' + pad32(height) + '/' + hash);
|
|
batch.del('m/' + pad32(ts) + '/' + hash);
|
|
batch.put('m/' + pad32(tx.ps) + '/' + hash, DUMMY);
|
|
|
|
if (self.options.indexAddress) {
|
|
map.all.forEach(function(id) {
|
|
batch.put('P/' + id + '/' + hash, DUMMY);
|
|
batch.del('H/' + id + '/' + pad32(height) + '/' + hash);
|
|
batch.del('M/' + id + '/' + pad32(ts) + '/' + hash);
|
|
batch.put('M/' + id + '/' + pad32(tx.ps) + '/' + hash, DUMMY);
|
|
});
|
|
}
|
|
}
|
|
|
|
utils.forEachSerial(tx.outputs, function(output, next, i) {
|
|
self.getCoin(hash, i, function(err, coin) {
|
|
if (err)
|
|
return next(err);
|
|
|
|
if (!coin)
|
|
return next();
|
|
|
|
coin.height = tx.height;
|
|
|
|
batch.put('c/' + hash + '/' + i, coin.toRaw());
|
|
|
|
next();
|
|
});
|
|
}, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
batch.write(function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
self.emit('unconfirmed', tx, map);
|
|
|
|
return callback(null, true);
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Get hashes of all transactions in the database.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Function} callback - Returns [Error, {@link Hash}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getHistoryHashes = function getHistoryHashes(address, callback) {
|
|
var self = this;
|
|
var txs = [];
|
|
|
|
if (typeof address === 'function') {
|
|
callback = address;
|
|
address = null;
|
|
}
|
|
|
|
callback = utils.ensure(callback);
|
|
|
|
if (Array.isArray(address)) {
|
|
return utils.forEachSerial(address, function(address, next) {
|
|
self.getHistoryHashes(address, function(err, tx) {
|
|
if (err)
|
|
return next(err);
|
|
|
|
txs = txs.concat(tx);
|
|
|
|
next();
|
|
});
|
|
}, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
txs = utils.uniq(txs);
|
|
|
|
return callback(null, txs);
|
|
});
|
|
}
|
|
|
|
this.db.iterate({
|
|
gte: address ? 'T/' + address : 't',
|
|
lte: address ? 'T/' + address + '~' : 't~',
|
|
transform: function(key) {
|
|
key = key.split('/');
|
|
if (address)
|
|
return key[2];
|
|
return key[1];
|
|
}
|
|
}, callback);
|
|
};
|
|
|
|
/**
|
|
* Get hashes of all unconfirmed transactions in the database.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Function} callback - Returns [Error, {@link Hash}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getUnconfirmedHashes = function getUnconfirmedHashes(address, callback) {
|
|
var self = this;
|
|
var txs = [];
|
|
|
|
if (typeof address === 'function') {
|
|
callback = address;
|
|
address = null;
|
|
}
|
|
|
|
callback = utils.ensure(callback);
|
|
|
|
if (Array.isArray(address)) {
|
|
return utils.forEachSerial(address, function(address, next) {
|
|
assert(address);
|
|
self.getUnconfirmedHashes(address, function(err, tx) {
|
|
if (err)
|
|
return next(err);
|
|
|
|
txs = txs.concat(tx);
|
|
|
|
next();
|
|
});
|
|
}, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
txs = utils.uniq(txs);
|
|
|
|
return callback(null, txs);
|
|
});
|
|
}
|
|
|
|
this.db.iterate({
|
|
gte: address ? 'P/' + address : 'p',
|
|
lte: address ? 'P/' + address + '~' : 'p~',
|
|
transform: function(key) {
|
|
key = key.split('/');
|
|
if (address)
|
|
return key[2];
|
|
return key[1];
|
|
}
|
|
}, callback);
|
|
};
|
|
|
|
/**
|
|
* Get all coin hashes in the database.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Function} callback - Returns [Error, {@link Hash}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getCoinHashes = function getCoinHashes(address, callback) {
|
|
var self = this;
|
|
var coins = [];
|
|
|
|
if (typeof address === 'function') {
|
|
callback = address;
|
|
address = null;
|
|
}
|
|
|
|
callback = utils.ensure(callback);
|
|
|
|
if (Array.isArray(address)) {
|
|
return utils.forEachSerial(address, function(address, next) {
|
|
self.getCoinHashes(address, function(err, coin) {
|
|
if (err)
|
|
return next(err);
|
|
|
|
coins = coins.concat(coin);
|
|
|
|
next();
|
|
});
|
|
}, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
return callback(null, coins);
|
|
});
|
|
}
|
|
|
|
this.db.iterate({
|
|
gte: address ? 'C/' + address : 'c',
|
|
lte: address ? 'C/' + address + '~' : 'c~',
|
|
transform: function(key) {
|
|
key = key.split('/');
|
|
if (address)
|
|
return [key[2], +key[3]];
|
|
return [key[1], +key[2]];
|
|
}
|
|
}, callback);
|
|
};
|
|
|
|
/**
|
|
* Get TX hashes by height range.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Object} options
|
|
* @param {Number} options.start - Start height.
|
|
* @param {Number} options.end - End height.
|
|
* @param {Number?} options.limit - Max number of records.
|
|
* @param {Boolean?} options.reverse - Reverse order.
|
|
* @param {Function} callback - Returns [Error, {@link Hash}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getHeightRangeHashes = function getHeightRangeHashes(address, options, callback) {
|
|
if (typeof address !== 'string') {
|
|
callback = options;
|
|
options = address;
|
|
address = null;
|
|
}
|
|
|
|
callback = utils.ensure(callback);
|
|
|
|
this.db.iterate({
|
|
gte: address
|
|
? 'H/' + address + '/' + pad32(options.start) + '/'
|
|
: 'h/' + pad32(options.start) + '/',
|
|
lte: address
|
|
? 'H/' + address + '/' + pad32(options.end) + '/~'
|
|
: 'h/' + pad32(options.end) + '/~',
|
|
limit: options.limit,
|
|
reverse: options.reverse,
|
|
transform: function(key) {
|
|
key = key.split('/');
|
|
if (address)
|
|
return key[3];
|
|
return key[2];
|
|
}
|
|
}, callback);
|
|
};
|
|
|
|
/**
|
|
* Get TX hashes by height.
|
|
* @param {Number} height
|
|
* @param {Function} callback - Returns [Error, {@link Hash}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getHeightHashes = function getHeightHashes(height, callback) {
|
|
return this.getHeightRangeHashes({ start: height, end: height }, callback);
|
|
};
|
|
|
|
/**
|
|
* Get TX hashes by timestamp range.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Object} options
|
|
* @param {Number} options.start - Start height.
|
|
* @param {Number} options.end - End height.
|
|
* @param {Number?} options.limit - Max number of records.
|
|
* @param {Boolean?} options.reverse - Reverse order.
|
|
* @param {Function} callback - Returns [Error, {@link Hash}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getRangeHashes = function getRangeHashes(address, options, callback) {
|
|
if (typeof address === 'function') {
|
|
callback = address;
|
|
address = null;
|
|
}
|
|
|
|
callback = utils.ensure(callback);
|
|
|
|
this.db.iterate({
|
|
gte: address
|
|
? 'M/' + address + '/' + pad32(options.start) + '/'
|
|
: 'm/' + pad32(options.start) + '/',
|
|
lte: address
|
|
? 'M/' + address + '/' + pad32(options.end) + '/~'
|
|
: 'm/' + pad32(options.end) + '/~',
|
|
limit: options.limit,
|
|
reverse: options.reverse,
|
|
transform: function(key) {
|
|
key = key.split('/');
|
|
if (address)
|
|
return key[3];
|
|
return key[2];
|
|
}
|
|
}, callback);
|
|
};
|
|
|
|
/**
|
|
* Get transactions by timestamp range.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Object} options
|
|
* @param {Number} options.start - Start height.
|
|
* @param {Number} options.end - End height.
|
|
* @param {Number?} options.limit - Max number of records.
|
|
* @param {Boolean?} options.reverse - Reverse order.
|
|
* @param {Function} callback - Returns [Error, {@link TX}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getRange = function getLast(address, options, callback) {
|
|
var self = this;
|
|
var txs = [];
|
|
|
|
if (typeof address === 'function') {
|
|
callback = address;
|
|
address = null;
|
|
}
|
|
|
|
return this.getRangeHashes(address, options, function(err, hashes) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
utils.forEachSerial(hashes, function(hash, next) {
|
|
self.getTX(hash, function(err, tx) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
if (!tx)
|
|
return next();
|
|
|
|
txs.push(tx);
|
|
|
|
next();
|
|
});
|
|
}, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
return callback(null, txs);
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Get last N transactions.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Number} limit - Max number of transactions.
|
|
* @param {Function} callback - Returns [Error, {@link TX}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getLast = function getLast(address, limit, callback) {
|
|
if (typeof limit === 'function') {
|
|
callback = limit;
|
|
limit = address;
|
|
address = null;
|
|
}
|
|
|
|
return this.getRange(address, {
|
|
start: 0,
|
|
end: 0xffffffff,
|
|
reverse: true,
|
|
limit: limit
|
|
}, callback);
|
|
};
|
|
|
|
/**
|
|
* Get all transactions.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Function} callback - Returns [Error, {@link TX}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getHistory = function getHistory(address, callback) {
|
|
var self = this;
|
|
var txs = [];
|
|
|
|
if (typeof address === 'function') {
|
|
callback = address;
|
|
address = null;
|
|
}
|
|
|
|
return this.getHistoryHashes(address, function(err, hashes) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
utils.forEachSerial(hashes, function(hash, next) {
|
|
self.getTX(hash, function(err, tx) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
if (!tx)
|
|
return next();
|
|
|
|
txs.push(tx);
|
|
|
|
next();
|
|
});
|
|
}, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
return callback(null, utils.sortTX(txs));
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Get last active timestamp and height.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Function} callback - Returns [Error, Number(ts), Number(height)].
|
|
*/
|
|
|
|
TXDB.prototype.getLastTime = function getLastTime(address, callback) {
|
|
if (typeof address === 'function') {
|
|
callback = address;
|
|
address = null;
|
|
}
|
|
|
|
return this.getHistory(address, function(err, txs) {
|
|
var lastTs, lastHeight;
|
|
|
|
if (err)
|
|
return callback(err);
|
|
|
|
lastTs = 0;
|
|
lastHeight = -1;
|
|
|
|
txs.forEach(function(tx) {
|
|
if (tx.ts > lastTs)
|
|
lastTs = tx.ts;
|
|
|
|
if (tx.height > lastHeight)
|
|
lastHeight = tx.height;
|
|
});
|
|
|
|
return callback(null, lastTs, lastHeight);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Get unconfirmed transactions.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Function} callback - Returns [Error, {@link TX}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getUnconfirmed = function getUnconfirmed(address, callback) {
|
|
var self = this;
|
|
var txs = [];
|
|
|
|
if (typeof address === 'function') {
|
|
callback = address;
|
|
address = null;
|
|
}
|
|
|
|
return this.getUnconfirmedHashes(address, function(err, hashes) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
utils.forEachSerial(hashes, function(hash, next) {
|
|
self.getTX(hash, function(err, tx) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
if (!tx)
|
|
return next();
|
|
|
|
txs.push(tx);
|
|
|
|
next();
|
|
});
|
|
}, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
return callback(null, txs);
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Get coins.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Function} callback - Returns [Error, {@link Coin}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getCoins = function getCoins(address, callback) {
|
|
var self = this;
|
|
var coins = [];
|
|
|
|
if (typeof address === 'function') {
|
|
callback = address;
|
|
address = null;
|
|
}
|
|
|
|
return this.getCoinHashes(address, function(err, hashes) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
utils.forEachSerial(hashes, function(key, next) {
|
|
self.getCoin(key[0], key[1], function(err, coin) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
if (!coin)
|
|
return next();
|
|
|
|
coins.push(coin);
|
|
|
|
next();
|
|
});
|
|
}, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
return callback(null, coins);
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Fill a transaction with coins (all historical coins).
|
|
* @param {TX} tx
|
|
* @param {Function} callback - Returns [Error, {@link TX}].
|
|
*/
|
|
|
|
TXDB.prototype.fillHistory = function fillHistory(tx, callback) {
|
|
var self = this;
|
|
|
|
if (Array.isArray(tx)) {
|
|
return utils.forEachSerial(tx, function(tx, next) {
|
|
self.fillHistory(tx, next);
|
|
}, callback);
|
|
}
|
|
|
|
callback = utils.asyncify(callback);
|
|
|
|
if (tx.isCoinbase())
|
|
return callback(null, tx);
|
|
|
|
utils.forEach(tx.inputs, function(input, next) {
|
|
if (input.coin)
|
|
return next();
|
|
|
|
self.getTX(input.prevout.hash, function(err, tx) {
|
|
if (err)
|
|
return next(err);
|
|
|
|
if (tx)
|
|
input.coin = bcoin.coin.fromTX(tx, input.prevout.index);
|
|
|
|
next();
|
|
});
|
|
}, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
return callback(null, tx);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Fill a transaction with coins.
|
|
* @param {TX} tx
|
|
* @param {Function} callback - Returns [Error, {@link TX}].
|
|
*/
|
|
|
|
TXDB.prototype.fillCoins = function fillCoins(tx, callback) {
|
|
var self = this;
|
|
|
|
if (Array.isArray(tx)) {
|
|
return utils.forEachSerial(tx, function(tx, next) {
|
|
self.fillCoins(tx, next);
|
|
}, callback);
|
|
}
|
|
|
|
callback = utils.asyncify(callback);
|
|
|
|
if (tx.isCoinbase())
|
|
return callback(null, tx);
|
|
|
|
utils.forEach(tx.inputs, function(input, next) {
|
|
if (input.coin)
|
|
return next();
|
|
|
|
self.getCoin(input.prevout.hash, input.prevout.index, function(err, coin) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
if (coin)
|
|
input.coin = coin;
|
|
|
|
next();
|
|
});
|
|
}, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
return callback(null, tx);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Get transaction.
|
|
* @param {Hash} hash
|
|
* @param {Function} callback - Returns [Error, {@link TX}].
|
|
*/
|
|
|
|
TXDB.prototype.getTX = function getTX(hash, callback) {
|
|
this.db.fetch('t/' + hash, function(tx) {
|
|
return bcoin.tx.fromExtended(tx);
|
|
}, callback);
|
|
};
|
|
|
|
/**
|
|
* Test whether the database has a transaction.
|
|
* @param {Hash} hash
|
|
* @param {Function} callback - Returns [Error, Boolean].
|
|
*/
|
|
|
|
TXDB.prototype.hasTX = function hasTX(hash, callback) {
|
|
return this.db.has('t/' + hash, callback);
|
|
};
|
|
|
|
/**
|
|
* Get coin.
|
|
* @param {Hash} hash
|
|
* @param {Number} index
|
|
* @param {Function} callback - Returns [Error, {@link Coin}].
|
|
*/
|
|
|
|
TXDB.prototype.getCoin = function getCoin(hash, index, callback) {
|
|
this.db.fetch('c/' + hash + '/' + index, function(coin) {
|
|
coin = bcoin.coin.fromRaw(coin);
|
|
coin.hash = hash;
|
|
coin.index = index;
|
|
return coin;
|
|
}, callback);
|
|
};
|
|
|
|
/**
|
|
* Test whether the database has a transaction.
|
|
* @param {Hash} hash
|
|
* @param {Function} callback - Returns [Error, Boolean].
|
|
*/
|
|
|
|
TXDB.prototype.hasCoin = function hasCoin(hash, index, callback) {
|
|
return this.db.has('c/' + hash + '/' + index, callback);
|
|
};
|
|
|
|
/**
|
|
* Calculate balance.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Function} callback - Returns [Error, {@link Balance}].
|
|
*/
|
|
|
|
TXDB.prototype.getBalance = function getBalance(address, callback) {
|
|
var self = this;
|
|
var confirmed = 0;
|
|
var unconfirmed = 0;
|
|
|
|
if (typeof address === 'function') {
|
|
callback = address;
|
|
address = null;
|
|
}
|
|
|
|
// return this.getCoins(address, function(err, coins) {
|
|
// if (err)
|
|
// return callback(err);
|
|
//
|
|
// for (i = 0; i < coins.length; i++) {
|
|
// if (coins[i].height === -1)
|
|
// unconfirmed += coins[i].value;
|
|
// else
|
|
// confirmed += coins[i].value;
|
|
// }
|
|
//
|
|
// return callback(null, {
|
|
// confirmed: confirmed,
|
|
// unconfirmed: unconfirmed,
|
|
// total: confirmed + unconfirmed
|
|
// });
|
|
// });
|
|
|
|
return this.getCoinHashes(address, function(err, hashes) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
utils.forEachSerial(hashes, function(hash, next) {
|
|
self.db.fetch('c/' + hash[0] + '/' + hash[1], function(data, key) {
|
|
var height = data.readUInt32LE(4, true);
|
|
var value = utils.read64N(data, 8);
|
|
|
|
assert(data.length >= 16);
|
|
|
|
if (height === 0x7fffffff)
|
|
unconfirmed += value;
|
|
else
|
|
confirmed += value;
|
|
}, next);
|
|
}, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
return callback(null, {
|
|
confirmed: confirmed,
|
|
unconfirmed: unconfirmed,
|
|
total: confirmed + unconfirmed
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Get hashes of all transactions in the database.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Function} callback - Returns [Error, {@link Hash}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getHistoryHashesByAddress = function getHistoryHashesByAddress(address, callback) {
|
|
return this.getHistoryHashes(address, callback);
|
|
};
|
|
|
|
/**
|
|
* Get all transactions.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Function} callback - Returns [Error, {@link TX}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getHistoryByAddress = function getHistoryByAddress(address, callback) {
|
|
return this.getHistory(address, callback);
|
|
};
|
|
|
|
/**
|
|
* Get coins.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Function} callback - Returns [Error, {@link Coin}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getCoinsByAddress = function getCoins(address, callback) {
|
|
return this.getCoins(address, callback);
|
|
};
|
|
|
|
/**
|
|
* Get unconfirmed transactions.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Function} callback - Returns [Error, {@link TX}[]].
|
|
*/
|
|
|
|
TXDB.prototype.getUnconfirmedByAddress = function getUnconfirmedByAddress(address, callback) {
|
|
return this.getUnconfirmed(address, callback);
|
|
};
|
|
|
|
/**
|
|
* Calculate balance.
|
|
* @param {WalletID|WalletID[]} address - By address (can be null).
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* @param {Function} callback - Returns [Error, {@link Balance}].
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*/
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TXDB.prototype.getBalanceByAddress = function getBalanceByAddress(address, callback) {
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return this.getBalance(address, callback);
|
|
};
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|
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/**
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|
* @param {WalletID|WalletID[]} address - By address (can be null).
|
|
* @param {Number} now - Current time.
|
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* @param {Number} age - Age delta (delete transactions older than `now - age`).
|
|
* @param {Function} callback
|
|
*/
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|
|
TXDB.prototype.zap = function zap(address, now, age, callback, force) {
|
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var self = this;
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|
|
|
if (typeof address !== 'string') {
|
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force = callback;
|
|
callback = age;
|
|
age = now;
|
|
now = address;
|
|
address = null;
|
|
}
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|
|
|
var unlock = this._lock(zap, [address, now, age, callback], force);
|
|
if (!unlock)
|
|
return;
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|
|
|
callback = utils.wrap(callback, unlock);
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|
|
|
assert(utils.isNumber(now));
|
|
assert(utils.isNumber(age));
|
|
assert(now >= age);
|
|
|
|
return this.getRange(address, {
|
|
start: 0,
|
|
end: now - age
|
|
}, function(err, txs) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
self.fillHistory(txs, function(err) {
|
|
if (err)
|
|
return callback(err);
|
|
|
|
utils.forEachSerial(txs, function(tx, next) {
|
|
if (tx.ts !== 0)
|
|
return next();
|
|
self.lazyRemove(tx, next);
|
|
}, callback);
|
|
});
|
|
});
|
|
};
|
|
|
|
/*
|
|
* Expose
|
|
*/
|
|
|
|
module.exports = TXDB;
|