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index.js
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const fastify = require('fastify')({
logger: true
})
// const cors = require('cors')
// fastify.use(cors())
fastify.register(require('fastify-accepts'))
const axios = require('axios')
const trans = require('./trans')
const BearychatTransport = require('./transport')
const config = require('./config')
const bearychat = require('bearychat')
const winston = require('winston')
const logger = winston.createLogger({
level: 'info',
format: winston.format.json(),
transports: [
new winston.transports.File({ filename: 'logs/error.log', level: 'error' }),
new winston.transports.File({ filename: 'logs/tx.log', level: 'warn' }),
new winston.transports.File({ filename: 'logs/combined.log' }),
new BearychatTransport({ token: config.default.bearychat_token, vchannel_id: config.default.bearychat_alert, level: 'error' })
]
});
if (process.env.NODE_ENV !== 'production') {
logger.add(new winston.transports.Console({
format: winston.format.simple()
}));
}
var bitcoin = require('bitcoinforksjs-lib')
var bchaddr = require('bchaddrjs');
var TransactionBuilder = bitcoin.TransactionBuilder
var Transaction = bitcoin.Transaction
const bch_network = process.env.BCH_NETWORK || 'bitcoin';
const API = process.env.API || (bch_network === 'testnet' ? 'blocktrail' : 'btc.com');
var network = bch_network === 'testnet' ? bitcoin.networks['testnet'] : bitcoin.networks['bitcoin']
async function getUTXO(address) {
const chain = await axios(getURL(address));
const json = chain.data;
console.log(json);
if (API === 'btc.com') {
if (json.err_no === 0 && json.data.total_count > 0) {
return {
txhash: json.data.list[0].tx_hash,
value: json.data.list[0].value,
out_input: json.data.list[0].tx_output_n
}
} else {
return false;
}
} else {
if (json.data.length > 0) {
return {
txhash: json.data[0].hash,
value: json.data[0].value
}
} else {
return false;
}
}
}
async function broadcastTX(rawhex) {
if (bch_network === 'testnet') {
const url = 'https://tbcc.blockdozer.com/insight-api/tx/send'
const send = await axios.post(url, { rawtx: rawhex })
if (send.data.txid) {
logger.info('broadcastTX succeed, rawhex:' + rawhex);
} else {
logger.error('send.statusCode:' + send.statusCode + 'broadcastTX failure, rawhex:' + rawhex);
}
} else {
const url = config.default.btccom_api_endpoint + '/tools/tx-publish'
const send = await axios.post(url, { rawhex: rawhex })
console.log(send.data);
if (send.data.err_no === 0) {
logger.info('broadcastTX succeed, rawhex:' + rawhex);
} else {
logger.error('broadcastTX failure, rawhex:' + rawhex);
}
}
}
function getURL(address) {
if (bch_network === 'bitcoin' && API === 'btc.com') {
return config.default.btccom_api_endpoint + '/address/' + address + '/unspent';
} else if (bch_network === 'testnet') {
return config.default.blocktrail_testnet_endpoint + '/address/' + address + '/unspent-outputs?api_key=' + config.default.blocktrail_key;
} else {
return config.default.blocktrail_endpoint + '/address/' + address + '/unspent-outputs?api_key=' + config.default.blocktrail_key;
}
}
function output(err_no, err_msg, data) {
if (err_no === 0) {
return { err_no: err_no, data: data }
} else {
return { err_no: err_no, err_msg: err_msg }
}
}
fastify.post('/api/' + config.default.route_url + '/amount', async function(request, reply) {
const private_key = request.body.private_key.trim() || '';
let lang = 'cn';
if (request.languages().length > 0) {
const languages = request.languages()[0];
lang = (languages === 'en' || languages === 'en-us') ? 'en' : 'cn';
}
// verify private key
if (private_key === '') {
reply.send(output(1, trans.getValue(lang, 'errors_private_key_error'), null))
return
}
var address = '';
try {
var keyPair = bitcoin.ECPair.fromWIF(private_key, network)
address = keyPair.getAddress()
} catch (e) {
logger.error('private key:' + private_key + ',e.message' + e.message);
reply.send(output(1, trans.getValue(lang, 'errors_private_key_format_error'), null))
return
}
try {
if (address !== '') {
const data = await getUTXO(address);
console.log(data);
if (!data) {
reply.send(output(0, null, { address: address, amount: 0 }))
} else {
reply.send(output(0, null, { address: address, amount: (data.value / 100000000) }))
}
}
} catch (e) {
logger.error('private key' + private_key + 'receive address:' + address + ',err:' + e.message);
reply.send(output(1, trans.getValue(lang, 'errors_get_amount_error'), null))
return
}
})
fastify.post('/api/' + config.default.route_url + '/send', async function(request, reply) {
const private_key = request.body.private_key.trim() || '';
var toLegacyAddress = bchaddr.toLegacyAddress;
var send_address = '';
let lang = 'cn';
if (request.languages().length > 0) {
const languages = request.languages()[0];
lang = (languages === 'en' || languages === 'en-us') ? 'en' : 'cn';
}
try {
send_address = toLegacyAddress(request.body.send_address.trim()) || '';
} catch (e) {
reply.send(output(1, trans.getValue(lang, 'errors_address_error'), null))
}
// verify private key
if (private_key === '') {
reply.send(output(1, trans.getValue(lang, 'errors_private_key_error'), null))
return
}
var address = '';
try {
var keyPair = bitcoin.ECPair.fromWIF(private_key, network)
address = keyPair.getAddress()
} catch (e) {
logger.error(e);
reply.send(output(1, trans.getValue(lang, 'errors_private_key_format_error'), null))
return
}
try {
if (address === send_address) {
reply.send(output(1, trans.getValue(lang, 'errors_address_same'), null))
return
}
if (address !== '' && send_address !== '') {
const data = await getUTXO(address);
if (!data) {
reply.send(output(1, trans.getValue(lang, 'errors_amount_not_enough'), null))
} else {
var vout = data.out_input
const fee = 300
const pk = keyPair.getPublicKeyBuffer()
const pkh = bitcoin.crypto.hash160(pk)
const spk = bitcoin.script.pubKeyHash.output.encode(pkh)
var txb = new TransactionBuilder(network)
txb.addInput(data.txhash, vout, Transaction.DEFAULT_SEQUENCE, spk)
txb.addOutput(send_address, data.value - fee)
txb.enableBitcoinCash(true)
txb.setVersion(2)
var hashType = Transaction.SIGHASH_ALL | Transaction.SIGHASH_BITCOINCASHBIP143
txb.sign(0, keyPair, null, hashType, data.value)
var tx = txb.build()
var hex = tx.toHex()
var txhash = tx.getId()
logger.info('tx:' + txhash + ',rawhex:' + hex)
await broadcastTX(hex, txhash);
logger.warn('address:' + send_address + ',tx:' + txhash + ', hex:' + hex);
reply.send(output(0, null, { address: address, txhash: txhash, rawhex: hex }))
logger.error((bch_network === 'test_net' ? 'test_net:' : '') + "撒出了" + data.value + "个币，给" + send_address + "，交易哈希是" + txhash)
}
} else {
reply.send(output(1, trans.getValue(lang, 'errors_send_address_null'), null))
}
} catch (e) {
logger.error('gen tx:' + address + ',err:' + e.message);
reply.send(output(1, trans.getValue(lang, 'errors_create_tx_fail'), null))
return
}
})
fastify.listen(3000, function(err) {
if (err) throw err
console.log(`server listening on ${fastify.server.address().port}`)
});