574 lines
13 KiB
JavaScript
574 lines
13 KiB
JavaScript
'use strict';
|
|
|
|
var BaseService = require('../../service');
|
|
var inherits = require('util').inherits;
|
|
var async = require('async');
|
|
var index = require('../../');
|
|
var log = index.log;
|
|
var bitcore = require('bitcore-lib');
|
|
var Unit = bitcore.Unit;
|
|
var _ = bitcore.deps._;
|
|
var Encoding = require('./encoding');
|
|
var Transform = require('stream').Transform;
|
|
var assert = require('assert');
|
|
|
|
var AddressService = function(options) {
|
|
BaseService.call(this, options);
|
|
this._tx = this.node.services.transaction;
|
|
this._header = this.node.services.header;
|
|
this._timestamp = this.node.services.timestamp;
|
|
this._network = this.node.network;
|
|
this._db = this.node.services.db;
|
|
if (this._network === 'livenet') {
|
|
this._network = 'main';
|
|
}
|
|
if (this._network === 'regtest') {
|
|
this._network = 'testnet';
|
|
}
|
|
};
|
|
|
|
inherits(AddressService, BaseService);
|
|
|
|
AddressService.dependencies = [
|
|
'db',
|
|
'header',
|
|
'transaction',
|
|
'timestamp'
|
|
];
|
|
|
|
// ---- public function prototypes
|
|
AddressService.prototype.getAddressHistory = function(addresses, options, callback) {
|
|
var self = this;
|
|
|
|
options = options || {};
|
|
options.from = options.from || 0;
|
|
options.to = options.to || 0xffffffff;
|
|
options.queryMempool = _.isUndefined(options.queryMempool) ? true : false;
|
|
|
|
async.mapLimit(addresses, 4, function(address, next) {
|
|
|
|
self._getAddressHistory(address, options, next);
|
|
|
|
}, function(err, txLists) {
|
|
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
|
|
var txList = _.flatten(txLists);
|
|
|
|
var results = {
|
|
totalCount: txList.length,
|
|
items: txList
|
|
};
|
|
|
|
callback(null, results);
|
|
|
|
});
|
|
|
|
};
|
|
|
|
AddressService.prototype.getAddressSummary = function(address, options, callback) {
|
|
|
|
var self = this;
|
|
|
|
options = options || {};
|
|
options.from = options.from || 0;
|
|
options.to = options.to || 0xffffffff;
|
|
options.queryMempool = _.isUndefined(options.queryMempool) ? true : false;
|
|
|
|
var result = {
|
|
addrStr: address,
|
|
balance: 0,
|
|
balanceSat: 0,
|
|
totalReceived: 0,
|
|
totalReceivedSat: 0,
|
|
totalSent: 0,
|
|
totalSentSat: 0,
|
|
unconfirmedBalance: 0,
|
|
unconfirmedBalanceSat: 0,
|
|
unconfirmedTxApperances: 0,
|
|
txApperances: 0,
|
|
transactions: []
|
|
};
|
|
|
|
// txid criteria
|
|
var start = self._encoding.encodeAddressIndexKey(address, options.from);
|
|
var end = self._encoding.encodeAddressIndexKey(address, options.to);
|
|
|
|
var criteria = {
|
|
gte: start,
|
|
lte: end
|
|
};
|
|
|
|
// txid stream
|
|
var txidStream = self._db.createKeyStream(criteria);
|
|
|
|
txidStream.on('close', function() {
|
|
txidStream.unpipe();
|
|
});
|
|
|
|
// tx stream
|
|
var txStream = new Transform({ objectMode: true, highWaterMark: 1000 });
|
|
|
|
txStream.on('end', function() {
|
|
result.balance = Unit.fromSatoshis(result.balanceSat).toBTC();
|
|
assert(result.balance >= 0, 'Balance can\'t be less than zero.');
|
|
result.totalReceived = Unit.fromSatoshis(result.totalReceivedSat).toBTC();
|
|
result.totalSent = Unit.fromSatoshis(result.totalSentSat).toBTC();
|
|
result.unconfirmedBalance = result.unconfirmedBalanceSat;
|
|
callback(null, result);
|
|
});
|
|
|
|
// pipe txids into tx stream for processing
|
|
txidStream.pipe(txStream);
|
|
|
|
txStream._transform = function(chunk, enc, callback) {
|
|
|
|
// TODO: what if the address in tx more than once? such as an address sending from itself to itself
|
|
var key = self._encoding.decodeAddressIndexKey(chunk);
|
|
|
|
self._tx.getTransaction(key.txid, options, function(err, tx) {
|
|
|
|
if(err) {
|
|
log.error(err);
|
|
txStream.emit('error', err);
|
|
return;
|
|
}
|
|
|
|
if (!tx) {
|
|
log.error('Could not find tx for txid: ' + key.txid + '. This should not be possible, check indexes.');
|
|
txStream.emit('error', new Error('Txid should map to a tx.'));
|
|
return;
|
|
}
|
|
|
|
var confirmations = self._header.getBestHeight() - key.height + 1;
|
|
|
|
result.transactions.push(tx.txid());
|
|
result.txApperances++;
|
|
// is this an input?
|
|
if (key.input) {
|
|
|
|
result.balanceSat -= tx.__inputValues[key.index];
|
|
result.totalSentSat += tx.__inputValues[key.index];
|
|
|
|
if (confirmations < 1) {
|
|
result.unconfirmedBalanceSat -= tx.__inputValues[key.index];
|
|
result.unconfirmedTxApperances++;
|
|
}
|
|
|
|
return callback();
|
|
|
|
}
|
|
|
|
result.balanceSat += tx.outputs[key.index].value;
|
|
result.totalReceivedSat += tx.outputs[key.index].value;
|
|
|
|
if (confirmations < 1) {
|
|
result.unconfirmedBalanceSat += tx.__inputValues[key.index];
|
|
result.unconfirmedTxApperances++;
|
|
}
|
|
|
|
callback();
|
|
|
|
});
|
|
|
|
};
|
|
|
|
txStream.on('error', function(err) {
|
|
log.error(err);
|
|
txStream.unpipe();
|
|
});
|
|
|
|
txStream._flush = function(callback) {
|
|
txStream.emit('end');
|
|
callback();
|
|
};
|
|
};
|
|
|
|
AddressService.prototype.getAddressUnspentOutputs = function(address, options, callback) {
|
|
|
|
var self = this;
|
|
|
|
options = options || {};
|
|
options.from = options.from || 0;
|
|
options.to = options.to || 0xffffffff;
|
|
options.queryMempool = _.isUndefined(options.queryMempool) ? true : false;
|
|
|
|
var results = [];
|
|
|
|
var start = self._encoding.encodeUtxoIndexKey(address);
|
|
var final = new Buffer(new Array(73).join('f'), 'hex');
|
|
var end = Buffer.concat([ start.slice(0, -36), final ]);
|
|
|
|
var criteria = {
|
|
gte: start,
|
|
lt: end
|
|
};
|
|
|
|
var utxoStream = self._db.createReadStream(criteria);
|
|
|
|
var streamErr;
|
|
|
|
utxoStream.on('end', function() {
|
|
|
|
if (streamErr) {
|
|
return callback(streamErr);
|
|
}
|
|
|
|
callback(null, results);
|
|
|
|
});
|
|
|
|
utxoStream.on('error', function(err) {
|
|
streamErr = err;
|
|
});
|
|
|
|
utxoStream.on('data', function(data) {
|
|
|
|
var key = self._encoding.decodeUtxoIndexKey(data.key);
|
|
var value = self._encoding.decodeUtxoIndexValue(data.value);
|
|
|
|
results.push({
|
|
address: address,
|
|
txid: key.txid,
|
|
vout: key.outputIndex,
|
|
ts: value.timestamp,
|
|
scriptPubKey: value.script.toString('hex'),
|
|
amount: Unit.fromSatoshis(value.satoshis).toBTC(),
|
|
confirmations: self._header.getBestHeight() - value.height,
|
|
satoshis: value.satoshis,
|
|
confirmationsFromCache: true
|
|
});
|
|
|
|
});
|
|
|
|
};
|
|
|
|
AddressService.prototype.getAPIMethods = function() {
|
|
return [
|
|
['getAddressHistory', this, this.getAddressHistory, 2],
|
|
['getAddressSummary', this, this.getAddressSummary, 1],
|
|
['getAddressUnspentOutputs', this, this.getAddressUnspentOutputs, 1]
|
|
];
|
|
};
|
|
|
|
AddressService.prototype.start = function(callback) {
|
|
|
|
var self = this;
|
|
|
|
this._db.getPrefix(this.name, function(err, prefix) {
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
self._encoding = new Encoding(prefix);
|
|
callback();
|
|
});
|
|
};
|
|
|
|
AddressService.prototype.stop = function(callback) {
|
|
setImmediate(callback);
|
|
};
|
|
|
|
|
|
// ---- start private function prototypes
|
|
AddressService.prototype._getAddressHistory = function(address, options, callback) {
|
|
|
|
var self = this;
|
|
|
|
options = options || {};
|
|
options.start = options.start || 0;
|
|
options.end = options.end || 0xffffffff;
|
|
|
|
var endHeightBuf = new Buffer(4);
|
|
endHeightBuf.writeUInt32BE(options.end);
|
|
|
|
if (_.isUndefined(options.queryMempool)) {
|
|
options.queryMempool = true;
|
|
}
|
|
|
|
var results = [];
|
|
var start = self._encoding.encodeAddressIndexKey(address, options.start);
|
|
var end = Buffer.concat([
|
|
start.slice(0, address.length + 4),
|
|
endHeightBuf,
|
|
new Buffer(new Array(83).join('f'), 'hex')
|
|
]);
|
|
|
|
var criteria = {
|
|
gte: start,
|
|
lte: end
|
|
};
|
|
|
|
// txid stream
|
|
var txidStream = self._db.createKeyStream(criteria);
|
|
|
|
txidStream.on('close', function() {
|
|
txidStream.unpipe();
|
|
});
|
|
|
|
// tx stream
|
|
var txStream = new Transform({ objectMode: true, highWaterMark: 1000 });
|
|
|
|
var streamErr;
|
|
txStream.on('end', function() {
|
|
|
|
if (streamErr) {
|
|
return callback(streamErr);
|
|
}
|
|
|
|
callback(null, results);
|
|
|
|
});
|
|
|
|
// pipe txids into tx stream for processing
|
|
txidStream.pipe(txStream);
|
|
|
|
txStream._transform = function(chunk, enc, callback) {
|
|
|
|
var key = self._encoding.decodeAddressIndexKey(chunk);
|
|
|
|
self._tx.getTransaction(key.txid, options, function(err, tx) {
|
|
|
|
if(err) {
|
|
log.error(err);
|
|
txStream.emit('error', err);
|
|
return callback();
|
|
}
|
|
|
|
if (!tx) {
|
|
log.error('Could not find tx for txid: ' + key.txid + '. This should not be possible, check indexes.');
|
|
txStream.emit('error', err);
|
|
return callback();
|
|
}
|
|
|
|
assert(tx.__height >- 0, 'tx must have a height');
|
|
self._header.getHeaderHash(tx.__height, function(err, hash) {
|
|
|
|
if(err) {
|
|
log.error(err);
|
|
txStream.emit('error', err);
|
|
return callback();
|
|
}
|
|
|
|
tx.__blockhash = hash;
|
|
|
|
var outputSatoshis = 0;
|
|
tx.outputs.forEach(function(output) {
|
|
outputSatoshis += output.value;
|
|
});
|
|
|
|
var inputSatoshis = 0;
|
|
tx.__inputValues.forEach(function(value) {
|
|
inputSatoshis += value;
|
|
});
|
|
|
|
tx.__outputSatoshis = outputSatoshis;
|
|
tx.__inputSatoshis = inputSatoshis;
|
|
results.push(tx);
|
|
callback();
|
|
|
|
});
|
|
|
|
});
|
|
|
|
};
|
|
|
|
txStream.on('error', function(err) {
|
|
log.error(err);
|
|
txStream.unpipe();
|
|
});
|
|
|
|
txStream._flush = function(callback) {
|
|
txStream.emit('end');
|
|
callback();
|
|
};
|
|
|
|
};
|
|
|
|
AddressService.prototype.onReorg = function(args, callback) {
|
|
|
|
var self = this;
|
|
|
|
var oldBlockList = args[1];
|
|
|
|
var removalOps = [];
|
|
// for every tx, remove the address index key for every input and output
|
|
// TODO: DRY self up!
|
|
for(var i = 0; i < oldBlockList.length; i++) {
|
|
|
|
var block = oldBlockList[i];
|
|
//txs
|
|
for(var j = 0; j < block.txs.length; j++) {
|
|
|
|
var tx = block.txs[j];
|
|
|
|
//inputs
|
|
var address;
|
|
|
|
for(var k = 0; k < tx.inputs.length; k++) {
|
|
|
|
var input = tx.inputs[k];
|
|
address = input.getAddress();
|
|
|
|
if (!address) {
|
|
continue;
|
|
}
|
|
|
|
address.network = self._network;
|
|
address = address.toString();
|
|
|
|
removalOps.push({
|
|
type: 'del',
|
|
key: self._encoding.encodeAddressIndexKey(address, block.height, tx.txid(), k, 1, block.ts)
|
|
});
|
|
}
|
|
|
|
//outputs
|
|
for(k = 0; k < tx.outputs.length; k++) {
|
|
|
|
var output = tx.outputs[k];
|
|
address = output.getAddress();
|
|
|
|
if (!address) {
|
|
continue;
|
|
}
|
|
|
|
address.network = self._network;
|
|
address = address.toString();
|
|
|
|
removalOps.push({
|
|
type: 'del',
|
|
key: self._encoding.encodeAddressIndexKey(address, block.height, tx.txid(), k, 0, block.ts)
|
|
});
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
callback(null, removalOps);
|
|
};
|
|
|
|
AddressService.prototype.onBlock = function(block, callback) {
|
|
var self = this;
|
|
|
|
if (self.node.stopping) {
|
|
return callback();
|
|
}
|
|
|
|
var operations = [];
|
|
|
|
for(var i = 0; i < block.txs.length; i++) {
|
|
var tx = block.txs[i];
|
|
var ops = self._processTransaction(tx, { block: block });
|
|
operations.push(ops);
|
|
}
|
|
|
|
operations = _.flatten(operations);
|
|
|
|
callback(null, operations);
|
|
};
|
|
|
|
AddressService.prototype._processInput = function(tx, input, opts) {
|
|
|
|
var address = input.getAddress();
|
|
|
|
if(!address) {
|
|
return;
|
|
}
|
|
|
|
address.network = this._network;
|
|
address = address.toString();
|
|
var txid = tx.txid();
|
|
var timestamp = this._timestamp.getTimestampSync(opts.block.rhash());
|
|
assert(timestamp, 'Must have a timestamp in order to process input.');
|
|
|
|
// address index
|
|
var addressKey = this._encoding.encodeAddressIndexKey(address, opts.block.height, txid, opts.inputIndex, 1, timestamp);
|
|
|
|
var operations = [{
|
|
type: 'put',
|
|
key: addressKey
|
|
}];
|
|
|
|
// prev utxo
|
|
var rec = {
|
|
type: 'del',
|
|
key: this._encoding.encodeUtxoIndexKey(address, input.prevout.txid(), input.prevout.index)
|
|
};
|
|
|
|
// In the event where we are reorg'ing,
|
|
// this is where we are putting a utxo back in, we don't know what the original height, sats, or scriptBuffer
|
|
// since this only happens on reorg and the utxo that was spent in the chain we are reorg'ing away from will likely
|
|
// be spent again sometime soon, we will not add the value back in, just the key
|
|
|
|
operations.push(rec);
|
|
|
|
return operations;
|
|
};
|
|
|
|
AddressService.prototype._processOutput = function(tx, output, index, opts) {
|
|
|
|
var address = output.getAddress();
|
|
|
|
if(!address) {
|
|
return;
|
|
}
|
|
|
|
address.network = this._network;
|
|
address = address.toString();
|
|
var txid = tx.txid();
|
|
var timestamp = this._timestamp.getTimestampSync(opts.block.rhash());
|
|
assert(timestamp, 'Must have a timestamp in order to process output.');
|
|
|
|
var addressKey = this._encoding.encodeAddressIndexKey(address, opts.block.height, txid, index, 0, timestamp);
|
|
|
|
var utxoKey = this._encoding.encodeUtxoIndexKey(address, txid, index);
|
|
var utxoValue = this._encoding.encodeUtxoIndexValue(
|
|
opts.block.height,
|
|
output.value,
|
|
timestamp,
|
|
output.script.toRaw()
|
|
);
|
|
|
|
var operations = [{
|
|
type: 'put',
|
|
key: addressKey
|
|
}];
|
|
|
|
operations.push({
|
|
type: 'put',
|
|
key: utxoKey,
|
|
value: utxoValue
|
|
});
|
|
|
|
return operations;
|
|
|
|
};
|
|
|
|
AddressService.prototype._processTransaction = function(tx, opts) {
|
|
|
|
var self = this;
|
|
|
|
var _opts = { block: opts.block };
|
|
|
|
var outputOperations = tx.outputs.map(function(output, index) {
|
|
return self._processOutput(tx, output, index, _opts);
|
|
});
|
|
|
|
outputOperations = _.flatten(_.compact(outputOperations));
|
|
|
|
var inputOperations = tx.inputs.map(function(input, index) {
|
|
_opts.inputIndex = index;
|
|
return self._processInput(tx, input, _opts);
|
|
});
|
|
|
|
inputOperations = _.flatten(_.compact(inputOperations));
|
|
|
|
outputOperations = outputOperations.concat(inputOperations);
|
|
return outputOperations;
|
|
|
|
};
|
|
|
|
module.exports = AddressService;
|