Browse Source

Initial merge of node-electrum-client & rn-electrum-client.

get-transaction-merkle
Corey Phillips 4 years ago
parent
commit
0069ebf522
No known key found for this signature in database GPG Key ID: 80C0975F55D3A07B
  1. 59
      .gitignore
  2. 23
      example/bitcoin.js
  3. 25
      example/ex.js
  4. 40
      example/raii_client_transaction_send.js
  5. 40
      example/raii_timeout.js
  6. 22
      example/scripthash.js
  7. 18
      example/simple.js
  8. 30
      example/subscribe.js
  9. 1
      index.js
  10. 149
      lib/TlsSocketWrapper.js
  11. 135
      lib/client.js
  12. 15
      lib/connect_socket.js
  13. 368
      lib/electrum_client.js
  14. 54
      lib/init_socket.js
  15. 71
      lib/util.js
  16. 846
      package-lock.json
  17. 60
      package.json

59
.gitignore

@ -0,0 +1,59 @@
# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*
# Runtime data
pids
*.pid
*.seed
*.pid.lock
# Directory for instrumented libs generated by jscoverage/JSCover
lib-cov
# Coverage directory used by tools like istanbul
coverage
# nyc test coverage
.nyc_output
# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
.grunt
# Bower dependency directory (https://bower.io/)
bower_components
# node-waf configuration
.lock-wscript
# Compiled binary addons (http://nodejs.org/api/addons.html)
build/Release
# Dependency directories
node_modules/
jspm_packages/
# Typescript v1 declaration files
typings/
# Optional npm cache directory
.npm
# Optional eslint cache
.eslintcache
# Optional REPL history
.node_repl_history
# Output of 'npm pack'
*.tgz
# Yarn Integrity file
.yarn-integrity
# dotenv environment variables file
.env

23
example/bitcoin.js

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const ElectrumClient = require('..')
const peers = require('electrum-host-parse').getDefaultPeers("bitcoin").filter(v => v.ssl)
const getRandomPeer = () => peers[peers.length * Math.random() | 0]
const main = async () => {
const peer = getRandomPeer()
console.log('begin connection: ' + JSON.stringify(peer))
const ecl = new ElectrumClient(peer.ssl, peer.host, 'ssl')
await ecl.connect()
try{
const ver = await ecl.server_version("2.7.11", "1.0")
console.log(ver)
const balance = await ecl.blockchainAddress_getBalance("12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX")
console.log(balance)
const unspent = await ecl.blockchainAddress_listunspent("12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX")
console.log(unspent)
}catch(e){
console.log(e)
}
await ecl.close()
}
main().catch(console.log)

25
example/ex.js

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const Client = require("../lib/electrum_cli")
const proc = async(cl) => {
try{
const version = await cl.server_version("2.7.11", "1.0")
console.log(version)
const balance = await cl.blockchainAddress_getBalance("MS43dMzRKfEs99Q931zFECfUhdvtWmbsPt")
console.log(balance)
const utxo = await cl.blockchainAddress_listunspent("MS43dMzRKfEs99Q931zFECfUhdvtWmbsPt")
console.log(utxo)
}catch(e){
console.log(e)
}
}
const main = async(port, host) => {
const cl = new Client(port, host);
await cl.connect()
for(let i = 0; i<100; ++i){
await proc(cl)
}
await cl.close()
}
main(4444, "localhost")

40
example/raii_client_transaction_send.js

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'use strict';
const ElectrumClient = require('..');
const createRaiiClient = (port, host, protocol, options) => {
return (params, promise) => {
const name = params.join(':')
const client = new ElectrumClient(port, host, protocol, options)
console.time(name)
return client.connect().then( () => {
return promise(client)
}).catch( e => {
client.close()
console.timeEnd(name)
throw e
}).then( res => {
client.close()
console.timeEnd(name)
return res
})
}
}
const main = async(hex) => {
const hosts = ['electrum-mona.bitbank.cc', 'electrumx.tamami-foundation.org']
const host = hosts[Math.floor(Math.random() * hosts.length)]
const connect = createRaiiClient(50001, host, 'tcp')
await connect(['blockchainTransaction_broadcast', hex], async(client) => {
const ver = await client.server_version('2.7.11', '1.0')
console.log(ver)
const result = await client.blockchainTransaction_broadcast(hex)
console.log(result)
})
}
const getopt = () => {
return process.argv.slice(2)[0]
}
main(getopt()).catch(console.log)

40
example/raii_timeout.js

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'use strict';
const ElectrumClient = require('..');
const createRaiiClient = (port, host, protocol, options) => {
return (params, promise) => {
const name = params.join(':')
const client = new ElectrumClient(port, host, protocol, options)
console.time(name)
return client.connect().then( () => {
return promise(client)
}).catch( e => {
client.close()
console.timeEnd(name)
throw e
}).then( res => {
client.close()
console.timeEnd(name)
return res
})
}
}
const main = async(hex) => {
const hosts = ['electrum-mona.bitbank.cc', 'electrumx.tamami-foundation.org']
const host = hosts[Math.floor(Math.random() * hosts.length)]
const connect = createRaiiClient(50000, host, 'tcp')
await connect(['blockchainTransaction_broadcast', hex], async(client) => {
const ver = await client.server_version('2.7.11', '1.0')
console.log(ver)
const result = await client.blockchainTransaction_broadcast(hex)
console.log(result)
})
}
const getopt = () => {
return process.argv.slice(2)[0]
}
main(getopt()).catch(console.log)

22
example/scripthash.js

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const ElectrumClient = require('..')
const main = async () => {
const ecl = new ElectrumClient(50002, 'bitcoins.sk', 'tls')
await ecl.connect()
try{
const ver = await ecl.server_version("3.0.5", "1.1")
console.log(ver)
const balance = await ecl.blockchainScripthash_getBalance("676ca8550e249787290b987e12cebdb2e9b26d88c003d836ffb1cb03ffcbea7c")
console.log(balance)
const unspent = await ecl.blockchainScripthash_listunspent("676ca8550e249787290b987e12cebdb2e9b26d88c003d836ffb1cb03ffcbea7c")
console.log(unspent)
const history = await ecl.blockchainScripthash_getHistory("676ca8550e249787290b987e12cebdb2e9b26d88c003d836ffb1cb03ffcbea7c")
console.log(history)
const mempool = await ecl.blockchainScripthash_getMempool("676ca8550e249787290b987e12cebdb2e9b26d88c003d836ffb1cb03ffcbea7c")
console.log(mempool)
}catch(e){
console.log(e)
}
await ecl.close()
}
main().catch(console.log)

18
example/simple.js

@ -0,0 +1,18 @@
const ElectrumClient = require('..')
const main = async () => {
const ecl = new ElectrumClient(995, 'btc.smsys.me', 'tls')
await ecl.connect()
try{
const ver = await ecl.server_version("2.7.11", "1.0")
console.log(ver)
const balance = await ecl.blockchainAddress_getBalance("12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX")
console.log(balance)
const unspent = await ecl.blockchainAddress_listunspent("12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX")
console.log(unspent)
}catch(e){
console.log(e)
}
await ecl.close()
}
main().catch(console.log)

30
example/subscribe.js

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const ElectrumClient = require('..')
const sleep = (ms) => new Promise((resolve,_) => setTimeout(() => resolve(), ms))
const main = async () => {
try{
const ecl = new ElectrumClient(50002, 'bitcoins.sk', 'tls')
ecl.subscribe.on('server.peers.subscribe', console.log)
ecl.subscribe.on('blockchain.numblocks.subscribe', console.log)
ecl.subscribe.on('blockchain.headers.subscribe', console.log)
ecl.subscribe.on('blockchain.address.subscribe', console.log)
ecl.subscribe.on('blockchain.scripthash.subscribe', console.log)
await ecl.connect()
await ecl.server_version("3.0.5", "1.1")
const p1 = await ecl.serverPeers_subscribe()
const p2 = await ecl.blockchainHeaders_subscribe()
// Note: blockchain.numblocks.subscribe is deprecated in protocol version 1.1
const p3 = await ecl.blockchainAddress_subscribe('1BK45iaPrrd26gKagrXytvz6anrj3hQ2pQ')
// Subscribe to corresponding scripthash for the above address
const p4 = await ecl.blockchainScripthash_subscribe('f3aa57a41424146327e5c88c25db8953dd16c6ab6273cdb74a4404ed4d0f5714')
while(true){
await sleep(1000)
const ver = await ecl.server_version("3.0.5", "1.1")
}
await ecl.close()
}catch(e){
console.log("error")
console.log(e)
}
}
main()

1
index.js

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module.exports = require('./lib/electrum_client');

149
lib/TlsSocketWrapper.js

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/**
* Simple wrapper to mimick Socket class from NET package, since TLS package havs slightly different API.
* We implement several methods that TCP sockets are expected to have. We will proxy call them as soon as
* realt TLS socket will be created (TLS socket created after connection).
*/
class TlsSocketWrapper {
constructor({ tls, verbose = false } = {}) {
this._tls = tls; // dependency injection lol
this._socket = false;
// defaults:
this._timeout = 5000;
this._encoding = 'utf8';
this._keepAliveEnabled = true;
this._keepAliveinitialDelay = 0;
this._noDelay = true;
this._listeners = {};
this._verbose = verbose;
}
setTimeout(timeout) {
if (this._socket) this._socket.setTimeout(timeout);
this._timeout = timeout;
}
setEncoding(encoding) {
if (this._socket) this._socket.setEncoding(encoding);
this._encoding = encoding;
}
setKeepAlive(enabled, initialDelay) {
if (this._socket) this._socket.setKeepAlive(enabled, initialDelay);
this._keepAliveEnabled = enabled;
this._keepAliveinitialDelay = initialDelay;
}
setNoDelay(noDelay) {
if (this._socket) this._socket.setNoDelay(noDelay);
this._noDelay = noDelay;
}
on(event, listener) {
this._listeners[event] = this._listeners[event] || [];
this._listeners[event].push(listener);
}
removeListener(event, listener) {
this._listeners[event] = this._listeners[event] || [];
let newListeners = [];
let found = false;
for (let savedListener of this._listeners[event]) {
if (savedListener == listener) {
// found our listener
found = true;
// we just skip it
} else {
// other listeners should go back to original array
newListeners.push(savedListener);
}
}
if (found) {
this._listeners[event] = newListeners;
} else {
// something went wrong, lets just cleanup all listeners
this._listeners[event] = [];
}
}
connect(port, host, callback, verbose = false) {
// resulting TLSSocket extends <net.Socket>
this._socket = this._tls.connect({ port: port, host: host, rejectUnauthorized: false }, () => {
// socket.write('{ "id": 5, "method": "blockchain.estimatefee", "params": [2] }\n')
if (this._verbose) console.log('TLS Connected to ', host, port);
return callback();
});
// setting everything that was set to this proxy class
this._socket.setTimeout(this._timeout);
this._socket.setEncoding(this._encoding);
this._socket.setKeepAlive(this._keepAliveEnabled, this._keepAliveinitialDelay);
this._socket.setNoDelay(this._noDelay);
// resubscribing to events on newly created socket so we could proxy them to already established listeners
this._socket.on('data', data => {
this._passOnEvent('data', data);
});
this._socket.on('end', data => {
this._passOnEvent('end', data);
});
this._socket.on('timeout', () => {
this._passOnEvent('timeout');
});
this._socket.on('onerror', data => {
this._passOnEvent('onerror', data);
});
this._socket.on('error', data => {
this._passOnEvent('error', data);
});
this._socket.on('close', data => {
this._passOnEvent('close', data);
});
this._socket.on('connect', data => {
this._passOnEvent('connect', data);
});
this._socket.on('secureConnect', data => {
this._passOnEvent('secureConnect', data);
});
this._socket.on('connection', data => {
this._passOnEvent('connection', data);
});
}
_passOnEvent(event, data) {
this._listeners[event] = this._listeners[event] || [];
for (let savedListener of this._listeners[event]) {
savedListener(data);
}
}
emit(event, data) {
if (this._verbose) {
console.log("Emit Data");
console.log(event);
console.log(data);
}
this._socket.emit(event, data);
}
end() {
this._socket.end();
}
destroy() {
this._socket.destroy();
}
write(data) {
if (this._verbose) {
console.log("Write Data...");
console.log(data);
}
this._socket.write(data);
}
}
module.exports = TlsSocketWrapper;

135
lib/client.js

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'use strict'
const EventEmitter = require('events').EventEmitter;
const util = require('./util');
const initSocket = require('./init_socket');
const connectSocket = require('./connect_socket');
class Client {
constructor(port, host, protocol = 'tcp', options = void 0) {
this.id = 0;
this.port = port;
this.host = host;
this.callback_message_queue = {};
this.subscribe = new EventEmitter();
this.conn = initSocket(this, protocol, options);
this.mp = new util.MessageParser((body, n) => {
this.onMessage(body, n);
});
this.status = 0
}
async connect() {
if(this.status) {
return Promise.resolve({ error: false, data: "" });
}
const connectionResponse = await connectSocket(this.conn, this.port, this.host);
this.status = connectionResponse.error === true ? 0 : 1;
return Promise.resolve(connectionResponse);
}
close(){
if (!this.status) {
return;
}
this.conn.end();
this.conn.destroy();
this.status = 0;
}
request(method, params) {
if (!this.status) {
return Promise.reject(new Error('ESOCKET'));
}
return new Promise((resolve, reject) => {
const id = ++this.id;
const content = util.makeRequest(method, params, id);
this.callback_message_queue[id] = util.createPromiseResult(resolve, reject);
this.conn.write(content + '\n');
});
}
requestBatch(method, params, secondParam) {
if (!this.status) {
return Promise.reject(new Error('ESOCKET'));
}
return new Promise((resolve, reject) => {
let arguments_far_calls = {};
let contents = [];
for (let param of params) {
const id = ++this.id;
if (secondParam !== undefined) {
contents.push(util.makeRequest(method, [param, secondParam], id));
} else {
contents.push(util.makeRequest(method, [param], id));
}
arguments_far_calls[id] = param;
}
const content = '[' + contents.join(',') + ']';
this.callback_message_queue[this.id] = util.createPromiseResultBatch(resolve, reject, arguments_far_calls);
// callback will exist only for max id
this.conn.write(content + '\n');
});
}
response(msg) {
let callback;
if (!msg.id && msg[0] && msg[0].id) {
// this is a response from batch request
for (let m of msg) {
if (m.id && this.callback_message_queue[m.id]) {
callback = this.callback_message_queue[m.id];
delete this.callback_message_queue[m.id];
}
}
} else {
callback = this.callback_message_queue[msg.id];
}
if (callback) {
delete this.callback_message_queue[msg.id];
if (msg.error) {
callback(msg.error);
} else {
callback(null, msg.result || msg);
}
} else {
console.log("Can't get callback"); // can't get callback
}
}
onMessage(body, n){
const msg = JSON.parse(body);
if (msg instanceof Array) {
this.response(msg);
} else {
if (msg.id !== void 0) {
this.response(msg)
} else {
this.subscribe.emit(msg.method, msg.params);
}
}
}
onConnect(){
}
onClose(){
Object.keys(this.callback_message_queue).forEach((key) => {
this.callback_message_queue[key](new Error('close connect'))
delete this.callback_message_queue[key]
})
}
onRecv(chunk){
this.mp.run(chunk)
}
onEnd(){
}
onError(e){
}
}
module.exports = Client;

15
lib/connect_socket.js

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'use strict';
const connectSocket = (conn, port, host) => {
return new Promise((resolve) => {
const errorHandler = (e) => resolve({ error: true, data: e })
conn.connect(port, host, () => {
conn.removeListener('error', errorHandler);
resolve({ error: false, data: { port, host } })
});
conn.on('error', errorHandler)
})
};
module.exports = connectSocket

368
lib/electrum_client.js

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const Client = require("./client")
class ElectrumClient extends Client{
constructor(port, host, protocol, options){
super(port, host, protocol, options);
}
onClose(){
super.onClose()
const list = [
'server.peers.subscribe',
'blockchain.numblocks.subscribe',
'blockchain.headers.subscribe',
'blockchain.address.subscribe'
]
list.forEach(event => this.subscribe.removeAllListeners(event))
}
server_version(client_name, protocol_version){
try {
return this.request('server.version', [client_name, protocol_version]);
} catch (e) {
return { error: true, data: e };
}
}
server_banner(){
try {
return this.request('server.banner', []);
} catch (e) {
return { error: true, data: e };
}
}
server_ping(){
try {
return this.request('server.ping', []);
} catch (e) {
return { error: true, data: e };
}
}
serverDonation_address(){
try {
return this.request('server.donation_address', []);
} catch (e) {
return { error: true, data: e };
}
}
serverPeers_subscribe(){
try {
return this.request('server.peers.subscribe', []);
} catch (e) {
return { error: true, data: e };
}
}
blockchainAddress_getBalance(address){
try {
return this.request('blockchain.address.get_balance', [address]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainAddress_getHistory(address){
try {
return this.request('blockchain.address.get_history', [address]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainAddress_getMempool(address){
try {
return this.request('blockchain.address.get_mempool', [address]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainAddress_getProof(address){
try {
return this.request('blockchain.address.get_proof', [address]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainAddress_listunspent(address){
try {
return this.request('blockchain.address.listunspent', [address]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainAddress_subscribe(address){
try {
return this.request('blockchain.address.subscribe', [address]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainScripthash_getBalance(scripthash){
try {
return this.request('blockchain.scripthash.get_balance', [scripthash]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainScripthash_getHistory(scripthash){
try {
return this.request('blockchain.scripthash.get_history', [scripthash]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainScripthash_getMempool(scripthash){
try {
return this.request('blockchain.scripthash.get_mempool', [scripthash]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainScripthash_listunspent(scripthash){
try {
return this.request('blockchain.scripthash.listunspent', [scripthash]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainScripthash_subscribe(scripthash){
try {
return this.request('blockchain.scripthash.subscribe', [scripthash]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainBlock_getHeader(height){
try {
return this.request('blockchain.block.get_header', [height]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainBlock_getBlockHeader(height){
try {
return this.request('blockchain.block.header', [height]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainBlock_getChunk(index){
try {
return this.request('blockchain.block.get_chunk', [index]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainEstimatefee(number){
try {
return this.request('blockchain.estimatefee', [number]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainHeaders_subscribe(){
try {
return this.request('blockchain.headers.subscribe', []);
} catch (e) {
return { error: true, data: e };
}
}
blockchainNumblocks_subscribe(){
try {
return this.request('blockchain.numblocks.subscribe', []);
} catch (e) {
return { error: true, data: e };
}
}
blockchain_relayfee(){
try {
return this.request('blockchain.relayfee', []);
} catch (e) {
return { error: true, data: e };
}
}
blockchainTransaction_broadcast(rawtx){
try {
return this.request('blockchain.transaction.broadcast', [rawtx]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainTransaction_get(tx_hash, verbose=false, merkle=false){
try {
return this.request('blockchain.transaction.get', [tx_hash, verbose]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainTransaction_getMerkle(tx_hash, height){
try {
return this.request('blockchain.transaction.get_merkle', [tx_hash, height]);
} catch (e) {
return { error: true, data: e };
}
}
blockchainUtxo_getAddress(tx_hash, index){
try {
return this.request('blockchain.utxo.get_address', [tx_hash, index]);
} catch (e) {
return { error: true, data: e };
}
}
/**
* @param {Object[]} scripthashes - [{ scriptHash: "", address: "", path: "" }]
* @param {string} scripthashes[].scriptHash - The address scripthash.
* @param {string} scripthashes[].address The address.
* @param {string} scripthashes[].path The derivation path of the address.
* @returns {Promise<[{ confirmed: Number, unconfirmed: Number, scriptHash: string, address: string }]|{data: *, error: boolean}>}
*/
async blockchainScripthashes_getBalance(scripthashes){
try {
const result = [];
await Promise.all(scripthashes.map(async ({ scriptHash = "", address = "", path = "" } = {}) => {
try {
const response = await this.request('blockchain.scripthash.get_balance', [scriptHash]);
const {confirmed, unconfirmed} = response;
const data = { confirmed, unconfirmed, scriptHash, address, path }
result.push(data);
} catch (e) {}
}));
return result;
} catch (e) {
return { error: true, data: e }
}
}
/**
* @param {Object[]} scripthashes - [{ scriptHash: "", address: "", path: "" }]
* @param {string} scripthashes[].scriptHash - The address scripthash.
* @param {string} scripthashes[].address The address.
* @param {string} scripthashes[].path The derivation path of the address.
* @returns {Promise<[{ height: Number, tx_hash: string, scriptHash: string, address: string, path: string }]|{data: *, error: boolean}>}
*/
async blockchainScripthashes_getHistory(scripthashes){
try {
const result = [];
await Promise.all(scripthashes.map(async ({ scriptHash = "", address = "", path = "" } = {}) => {
try {
const response = await this.request('blockchain.scripthash.get_history', [scriptHash]);
const responseLength = response.length;
if (responseLength > 0) {
response.map((res) => {
try {
const { height, tx_hash } = res;
const data = { height, tx_hash, scriptHash, address, path }
result.push(data);
} catch (e) {}
});
}
} catch (e) {}
}));
return result;
} catch (e) {
return { error: true, data: e }
}
}
/**
* @param {Object[]} scripthashes - [{ scriptHash: "", address: "", path: "" }]
* @param {string} scripthashes[].scriptHash - The address scripthash.
* @param {string} scripthashes[].address The address.
* @param {string} scripthashes[].path The derivation path of the address.
* @returns {Promise<[]|{data: *, error: boolean}>}
*/
async blockchainScripthashes_getMempool(scripthashes){
try {
const result = [];
await Promise.all(scripthashes.map(async ({ scriptHash = "", address = "", path = "" } = {}) => {
try {
const response = await this.request('blockchain.scripthash.get_mempool', [scriptHash]);
const responseLength = response.length;
if (responseLength > 0) {
response.map((res) => {
try {
const { height, tx_hash } = res;
const data = { height, tx_hash, scriptHash, address, path }
result.push(data);
} catch (e) {}
});
}
} catch (e) {}
}));
return result;
} catch (e) {
return { error: true, data: e }
}
}
/**
* @param {Object[]} scripthashes - [{ scriptHash: "", address: "", path: "" }]
* @param {string} scripthashes[].scriptHash - The address scripthash.
* @param {string} scripthashes[].address The address.
* @param {string} scripthashes[].path The derivation path of the address.
* @returns {Promise<[{ height: 0, tx_hash: "", tx_pos: 0, value: 0, scriptHash: "", address: "", path: "" }]|{data: *, error: boolean}>}
*/
async blockchainScripthashes_listunspent(scripthashes){
try {
const result = [];
await Promise.all(scripthashes.map(async (scripthashData) => {
try {
const { scriptHash, address, path } = scripthashData;
const response = await this.request('blockchain.scripthash.listunspent', [scriptHash]);
const responseLength = response.length;
if (responseLength > 0) {
response.map((res) => {
try {
const {height, tx_hash, tx_pos, value} = res;
const data = {height, tx_hash, tx_pos, value, scriptHash, address, path};
result.push(data);
} catch (e) {}
});
}
} catch (e) {}
}));
return result;
} catch (e) {
return { error: true, data: e }
}
}
/**
* @param {Object[]} tx_hashes - [{ tx_hash: string }]
* @param {string} tx_hashes[].tx_hash - The transaction's hash.
* @param {boolean} verbose - The address scripthash.
* @param {boolean} merkle
* @returns {Promise<[]|{data: *, error: boolean}>}
*/
async blockchainTransactions_get(tx_hashes, verbose= false, merkle= false){
try {
const result = [];
await Promise.all(tx_hashes.map(async (tx) => {
try {
const response = await this.request('blockchain.transaction.get', [tx.tx_hash, verbose]);
if (response) {
try {
const data = Object.assign(tx, response);
result.push(data);
} catch (e) {}
}
} catch (e) {}
}));
return result;
} catch (e) {
return { error: true, data: e }
}
}
requestBatch(method, params, secondParam) {
const parentPromise = super.requestBatch(method, params, secondParam);
return parentPromise.then(response => {
return response;
});
}
blockchainScripthash_getBalanceBatch(scripthash) {
return this.requestBatch('blockchain.scripthash.get_balance', scripthash);
}
blockchainScripthash_listunspentBatch(scripthash) {
return this.requestBatch('blockchain.scripthash.listunspent', scripthash);
}
blockchainScripthash_getHistoryBatch(scripthash) {
return this.requestBatch('blockchain.scripthash.get_history', scripthash);
}
blockchainTransaction_getBatch(tx_hash, verbose) {
return this.requestBatch('blockchain.transaction.get', tx_hash, verbose);
}
}
module.exports = ElectrumClient

54
lib/init_socket.js

@ -0,0 +1,54 @@
'use strict'
const net = require('net');
const tls = require('tls');
const TlsSocketWrapper = require('./TlsSocketWrapper.js');
const TIMEOUT = 5000
const getSocket = (protocol, options) => {
switch(protocol){
case 'tcp':
return new net.Socket();
case 'tls':
case 'ssl':
if (!tls) throw new Error('tls package could not be loaded');
return new TlsSocketWrapper({ tls, verbose: false });
}
throw new Error('unknown protocol')
}
const initSocket = (self, protocol, options) => {
const conn = getSocket(protocol, options);
conn.setTimeout(TIMEOUT)
conn.setEncoding('utf8')
conn.setKeepAlive(true, 0)
conn.setNoDelay(true)
conn.on('connect', () => {
conn.setTimeout(0)
self.onConnect()
})
conn.on('close', (e) => {
self.onClose(e)
})
conn.on('timeout', () => {
//self.onClose(e);
/*const e = new Error('ETIMEDOUT')
e.errorno = 'ETIMEDOUT'
e.code = 'ETIMEDOUT'
e.connect = false
conn.emit('error', e)*/
})
conn.on('data', (chunk) => {
conn.setTimeout(0)
self.onRecv(chunk)
})
conn.on('end', (e) => {
conn.setTimeout(0)
self.onEnd(e)
})
conn.on('error', (e) => {
self.onError(e)
})
return conn
}
module.exports = initSocket

71
lib/util.js

@ -0,0 +1,71 @@
'use strict'
const makeRequest = exports.makeRequest = (method, params, id) => {
return JSON.stringify({
jsonrpc : "2.0",
method : method,
params : params,
id : id,
})
}
const createRecuesiveParser = exports.createRecuesiveParser = (max_depth, delimiter) => {
const MAX_DEPTH = max_depth
const DELIMITER = delimiter
const recursiveParser = (n, buffer, callback) => {
if(buffer.length === 0) {
return {code:0, buffer:buffer}
}
if(n > MAX_DEPTH) {
return {code:1, buffer:buffer}
}
const xs = buffer.split(DELIMITER)
if(xs.length === 1){
return {code:0, buffer:buffer}
}
callback(xs.shift(), n)
return recursiveParser(n + 1, xs.join(DELIMITER), callback)
}
return recursiveParser
}
const createPromiseResult = exports.createPromiseResult = (resolve, reject) => {
return (err, result) => {
if(err) reject(err)
else resolve(result)
}
}
const createPromiseResultBatch = (exports.createPromiseResultBatch = (resolve, reject, argz) => {
return (err, result) => {
if (result && result[0] && result[0].id) {
// this is a batch request response
for (let r of result) {
r.param = argz[r.id];
}
}
if (err) reject(err);
else resolve(result);
};
});
class MessageParser{
constructor(callback){
this.buffer = ''
this.callback = callback
this.recursiveParser = createRecuesiveParser(20, '\n')
}
run(chunk){
this.buffer += chunk
while(true){
const res = this.recursiveParser(0, this.buffer, this.callback)
this.buffer = res.buffer
if(res.code === 0){
break;
}
}
}
}
exports.MessageParser = MessageParser

846
package-lock.json

@ -0,0 +1,846 @@
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60
package.json

@ -0,0 +1,60 @@
{
"name": "rn-electrum-client",
"version": "0.0.7",
"description": "Electrum protocol client for React Native & Node.js",
"main": "index.js",
"scripts": {
"test": "mocha --timeout 10000 --exit -b"
},
"repository": {
"type": "git",
"url": "git://github.com/synonymdev/rn-electrum-client.git"
},
"author": "Synonym",
"license": "MIT",
"devDependencies": {
"electrum-host-parse": "*",
"mocha": "^8.2.0"
},
"peerDependencies": {
"@photon-sdk/react-native-tcp": "^6.0.0"
},
"react-native": {
"net": "@photon-sdk/react-native-tcp",
"tls": "@photon-sdk/react-native-tcp/tls",
"crypto": "react-native-crypto",
"_stream_transform": "readable-stream/transform",
"_stream_readable": "readable-stream/readable",
"_stream_writable": "readable-stream/writable",
"_stream_duplex": "readable-stream/duplex",
"_stream_passthrough": "readable-stream/passthrough",
"stream": "stream-browserify",
"vm": "vm-browserify"
},
"browser": {
"net": "@photon-sdk/react-native-tcp",
"tls": "@photon-sdk/react-native-tcp/tls",
"crypto": "react-native-crypto",
"_stream_transform": "readable-stream/transform",
"_stream_readable": "readable-stream/readable",
"_stream_writable": "readable-stream/writable",
"_stream_duplex": "readable-stream/duplex",
"_stream_passthrough": "readable-stream/passthrough",
"stream": "stream-browserify",
"vm": "vm-browserify"
},
"engines": {
"node": ">=6"
},
"keywords": [
"client",
"electrum",
"bitcoin",
"nodejs"
],
"bugs": {
"url": "https://github.com/synonymdev/rn-electrum-client/issues"
},
"homepage": "https://github.com/synonymdev/rn-electrum-client#readme",
"dependencies": {}
}
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