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proxy.js
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proxy.js
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"use strict";
const cluster = require('cluster');
const net = require('net');
const tls = require('tls');
const fs = require('fs');
const async = require('async');
const uuidV4 = require('uuid/v4');
const support = require('./lib/support.js')();
global.config = require('./config.json');
/*
General file design/where to find things.
Internal Variables
IPC Registry
Combined Functions
Pool Definition
Master Functions
Miner Definition
Slave Functions
API Calls (Master-Only)
System Init
*/
let debug = {
pool: require('debug')('pool'),
diff: require('debug')('diff'),
blocks: require('debug')('blocks'),
shares: require('debug')('shares'),
miners: require('debug')('miners'),
workers: require('debug')('workers'),
balancer: require('debug')('balancer')
};
global.threadName = '';
let nonceCheck = new RegExp("^[0-9a-f]{8}$");
let activePorts = [];
let httpResponse = ' 200 OK\nContent-Type: text/plain\nContent-Length: 18\n\nMining Proxy Online';
let activeMiners = {};
let activeCoins = {};
let bans = {};
let activePools = {};
let activeWorkers = {};
let defaultPools = {};
let masterStats = {shares: 0, blocks: 0, hashes: 0};
// IPC Registry
function masterMessageHandler(worker, message, handle) {
if (typeof message !== 'undefined' && 'type' in message){
switch (message.type) {
case 'blockFind':
case 'shareFind':
if (message.host in activePools){
activePools[message.host].sendShare(worker, message.data);
}
break;
case 'needPoolState':
worker.send({
type: 'poolState',
data: Object.keys(activePools)
});
for (let hostname in activePools){
if (activePools.hasOwnProperty(hostname)){
let pool = activePools[hostname];
if (!pool.active || pool.activeBlocktemplate === null){
continue;
}
worker.send({
host: hostname,
type: 'newBlockTemplate',
data: pool.coinFuncs.getMasterJob(pool, worker.id)
});
}
}
break;
case 'workerStats':
activeWorkers[worker.id][message.minerID] = message.data;
break;
}
}
}
function slaveMessageHandler(message) {
switch (message.type) {
case 'newBlockTemplate':
if (message.host in activePools){
if(activePools[message.host].activeBlocktemplate){
debug.workers(`Received a new block template for ${message.host} and have one in cache. Storing`);
activePools[message.host].pastBlockTemplates.enq(activePools[message.host].activeBlocktemplate);
} else {
debug.workers(`Received a new block template for ${message.host} do not have one in cache.`);
}
activePools[message.host].activeBlocktemplate = new activePools[message.host].coinFuncs.BlockTemplate(message.data);
for (let miner in activeMiners){
if (activeMiners.hasOwnProperty(miner)){
let realMiner = activeMiners[miner];
if (realMiner.pool === message.host){
realMiner.messageSender('job', realMiner.getJob(realMiner, activePools[message.host].activeBlocktemplate));
}
}
}
}
break;
case 'poolState':
message.data.forEach(function(hostname){
if(!(hostname in activePools)){
global.config.pools.forEach(function(poolData){
if (hostname === poolData.hostname){
activePools[hostname] = new Pool(poolData);
}
});
}
});
break;
case 'changePool':
if (activeMiners.hasOwnProperty(message.worker) && activePools.hasOwnProperty(message.pool)){
activeMiners[message.worker].pool = message.pool;
activeMiners[message.worker].messageSender('job',
activeMiners[message.worker].getJob(activeMiners[message.worker], activePools[message.pool].activeBlocktemplate, true));
}
break;
case 'disablePool':
if (activePools.hasOwnProperty(message.pool)){
activePools[message.pool].active = false;
checkActivePools();
}
break;
case 'enablePool':
if (activePools.hasOwnProperty(message.pool)){
activePools[message.pool].active = true;
process.send({type: 'needPoolState'});
}
break;
}
}
// Combined Functions
function readConfig() {
let local_conf = JSON.parse(fs.readFileSync('config.json'));
if (typeof global.config === 'undefined') {
global.config = {};
}
for (let key in local_conf) {
if (local_conf.hasOwnProperty(key) && (typeof global.config[key] === 'undefined' || global.config[key] !== local_conf[key])) {
global.config[key] = local_conf[key];
}
}
if (!cluster.isMaster) {
activatePorts();
}
}
// Pool Definition
function Pool(poolData){
/*
Pool data is the following:
{
"hostname": "pool.supportxmr.com",
"port": 7777,
"ssl": false,
"share": 80,
"username": "",
"password": "",
"keepAlive": true,
"coin": "xmr"
}
Client Data format:
{
"method":"submit",
"params":{
"id":"12e168f2-db42-4eea-b56a-f1e7d57f94c9",
"job_id":"/4FIQEI/Qq++EzzH1e03oTrWF5Ed",
"nonce":"9e008000",
"result":"4eee0b966418fdc3ec1a684322715e65765554f11ff8f7fed3f75ac45ef20300"
},
"id":1
}
*/
this.hostname = poolData.hostname;
this.port = poolData.port;
this.ssl = poolData.ssl;
this.share = poolData.share;
this.username = poolData.username;
this.password = poolData.password;
this.keepAlive = poolData.keepAlive;
this.default = poolData.default;
this.devPool = poolData.hasOwnProperty('devPool') && poolData.devPool === true;
this.coin = poolData.coin;
this.pastBlockTemplates = support.circularBuffer(4);
this.coinFuncs = require(`./lib/${this.coin}.js`)();
this.activeBlocktemplate = null;
this.active = true;
this.sendId = 1;
this.sendLog = {};
this.poolJobs = {};
this.socket = null;
this.allowSelfSignedSSL = true;
// Partial checks for people whom havn't upgraded yet
if (poolData.hasOwnProperty('allowSelfSignedSSL')){
this.allowSelfSignedSSL = !poolData.allowSelfSignedSSL;
}
this.connect = function(){
for (let worker in cluster.workers){
if (cluster.workers.hasOwnProperty(worker)){
cluster.workers[worker].send({type: 'disablePool', pool: this.hostname});
}
}
try {
if (this.socket !== null){
this.socket.end();
this.socket.destroy();
}
} catch (e) {
console.log("Had issues murdering the old socket. Om nom: " + e)
}
this.socket = null;
this.active = false;
if (this.ssl){
this.socket = tls.connect(this.port, this.hostname, {rejectUnauthorized: this.allowSelfSignedSSL}).on('connect', ()=>{
poolSocket(this.hostname);
}).on('error', (err)=>{
this.connect();
console.warn(`${global.threadName}Socket error from ${this.hostname} ${err}`);
});
} else {
this.socket = net.connect(this.port, this.hostname).on('connect', ()=>{
poolSocket(this.hostname);
}).on('error', (err)=>{
this.connect();
console.warn(`${global.threadName}Socket error from ${this.hostname} ${err}`);
});
}
};
this.heartbeat = function(){
if (this.keepAlive){
this.sendData('keepalived');
}
};
this.sendData = function (method, params) {
if (typeof params === 'undefined'){
params = {};
}
let rawSend = {
method: method,
id: this.sendId++,
};
if (typeof this.id !== 'undefined'){
params.id = this.id;
}
rawSend.params = params;
if (!this.socket.writable){
return false;
}
this.socket.write(JSON.stringify(rawSend) + '\n');
this.sendLog[rawSend.id] = rawSend;
debug.pool(`Sent ${JSON.stringify(rawSend)} to ${this.hostname}`);
};
this.login = function () {
this.sendData('login', {
login: this.username,
pass: this.password,
agent: 'xmr-node-proxy/0.1.0'
});
this.active = true;
for (let worker in cluster.workers){
if (cluster.workers.hasOwnProperty(worker)){
cluster.workers[worker].send({type: 'enablePool', pool: this.hostname});
}
}
};
this.sendShare = function (worker, shareData) {
//btID - Block template ID in the poolJobs circ buffer.
let job = this.poolJobs[worker.id].toarray().filter(function (job) {
return job.id === shareData.btID;
})[0];
if (job){
this.sendData('submit', {
job_id: job.masterJobID,
nonce: shareData.nonce,
result: shareData.resultHash,
workerNonce: shareData.workerNonce,
poolNonce: job.poolNonce
});
}
};
}
// Master Functions
/*
The master performs the following tasks:
1. Serve all API calls.
2. Distribute appropriately modified block template bases to all pool servers.
3. Handle all to/from the various pool servers.
4. Manage and suggest miner changes in order to achieve correct h/s balancing between the various systems.
*/
function connectPools(){
global.config.pools.forEach(function (poolData) {
if (activePools.hasOwnProperty(poolData.hostname)){
return;
}
activePools[poolData.hostname] = new Pool(poolData);
activePools[poolData.hostname].connect();
});
let seen_coins = {};
if (global.config.developerShare > 0){
for (let pool in activePools){
if (activePools.hasOwnProperty(pool)){
if (seen_coins.hasOwnProperty(activePools[pool].coin)){
return;
}
let devPool = activePools[pool].coinFuncs.devPool;
if (activePools.hasOwnProperty(devPool.hostname)){
return;
}
activePools[devPool.hostname] = new Pool(devPool);
activePools[devPool.hostname].connect();
seen_coins[activePools[pool].coin] = true;
}
}
}
for (let coin in seen_coins){
if (seen_coins.hasOwnProperty(coin)){
activeCoins[coin] = true;
}
}
}
function balanceWorkers(){
/*
This function deals with handling how the pool deals with getting traffic balanced to the various pools.
Step 1: Enumerate all workers (Child servers), and their miners/coins into known states
Step 1: Enumerate all miners, move their H/S into a known state tagged to the coins and pools
Step 2: Enumerate all pools, verify the percentages as fractions of 100.
Step 3: Determine if we're sharing with the developers (Woohoo! You're the best if you do!)
Step 4: Process the state information to determine splits/moves.
Step 5: Notify child processes of other pools to send traffic to if needed.
The Master, as the known state holder of all information, deals with handling this data.
*/
let minerStates = {};
let poolStates = {};
for (let poolName in activePools){
if (activePools.hasOwnProperty(poolName)){
let pool = activePools[poolName];
if (!poolStates.hasOwnProperty(pool.coin)){
poolStates[pool.coin] = {'percentage': 0, 'devPool': false};
}
poolStates[pool.coin][poolName] = {
miners: {},
hashrate: 0,
percentage: pool.share,
devPool: pool.devPool,
idealRate: 0
};
if(pool.devPool){
poolStates[pool.coin].devPool = poolName;
debug.balancer(`Found a developer pool enabled. Pool is: ${poolName}`);
} else {
poolStates[pool.coin].percentage += pool.share;
}
}
}
/*
poolStates now contains an object that looks approximately like:
poolStates = {
'xmr':
{
'mine.xmrpool.net': {
'miners': {},
'hashrate': 0,
'percentage': 20,
'devPool': false,
'amtChange': 0
},
'donations.xmrpool.net': {
'miners': {},
'hashrate': 0,
'percentage': 0,
'devPool': true,
'amtChange': 0
},
'devPool': 'donations.xmrpool.net',
'totalPercentage': 20
}
}
*/
for (let coin in poolStates){
if(poolStates.hasOwnProperty(coin)){
let percentModifier = 1;
let newPercentage = 0;
if (poolStates[coin].percentage !== 100){
debug.balancer(`Pools on ${coin} are using ${poolStates[coin].percentage}% balance. Adjusting.`);
// Need to adjust all the pools that aren't the dev pool.
percentModifier = 100/poolStates[coin].percentage;
for (let pool in poolStates[coin]){
if (poolStates[coin].hasOwnProperty(pool) && activePools.hasOwnProperty(pool)){
if (poolStates[coin][pool].devPool){
continue;
}
poolStates[coin][pool].percentage *= percentModifier;
newPercentage += poolStates[coin][pool].share;
}
}
let finalMod = 0;
if (newPercentage !== 100){
finalMod = 100 - newPercentage;
}
for (let pool in poolStates[coin]){
if (poolStates[coin].hasOwnProperty(pool) && activePools.hasOwnProperty(pool)){
if (poolStates[coin][pool].devPool){
continue;
}
poolStates[coin][pool].share += finalMod;
break;
}
}
}
delete(poolStates[coin].totalPercentage);
}
}
/*
poolStates now contains an object that looks approximately like:
poolStates = {
'xmr':
{
'mine.xmrpool.net': {
'miners': {},
'hashrate': 0,
'percentage': 100,
'devPool': false
},
'donations.xmrpool.net': {
'miners': {},
'hashrate': 0,
'percentage': 0,
'devPool': true
},
'devPool': 'donations.xmrpool.net',
}
}
*/
for (let workerID in activeWorkers){
if (activeWorkers.hasOwnProperty(workerID)){
for (let minerID in activeWorkers[workerID]){
if (activeWorkers[workerID].hasOwnProperty(minerID)){
let miner = activeWorkers[workerID][minerID];
try {
let minerCoin = miner.coin;
if (!minerStates.hasOwnProperty(minerCoin)){
minerStates[minerCoin] = {
hashrate: 0
};
}
minerStates[minerCoin].hashrate += miner.avgSpeed;
poolStates[minerCoin][miner.pool].hashrate += miner.avgSpeed;
poolStates[minerCoin][miner.pool].miners[`${workerID}_${minerID}`] = miner.avgSpeed;
} catch (err) {}
}
}
}
}
/*
poolStates now contains the hashrate per pool. This can be compared against minerStates/hashRate to determine
the approximate hashrate that should be moved between pools once the general hashes/second per pool/worker
is determined.
*/
for (let coin in poolStates){
if (poolStates.hasOwnProperty(coin) && minerStates.hasOwnProperty(coin)){
let coinMiners = minerStates[coin];
let coinPools = poolStates[coin];
let devPool = coinPools.devPool;
let highPools = {};
let lowPools = {};
delete(coinPools.devPool);
if (devPool){
let devHashrate = Math.floor(coinMiners.hashrate * (global.config.developerShare/100));
coinMiners.hashrate -= devHashrate;
coinPools[devPool].idealRate = devHashrate;
debug.balancer(`DevPool on ${coin} is enabled. Set to ${global.config.developerShare}% and ideally would have ${coinPools[devPool].idealRate}. Currently has ${coinPools[devPool].hashrate}`);
if (coinPools[devPool].idealRate > coinPools[devPool].hashrate){
lowPools[devPool] = coinPools[devPool].idealRate - coinPools[devPool].hashrate;
debug.balancer(`Pool ${devPool} is running a low hashrate compared to ideal. Want to increase by: ${lowPools[devPool]} h/s`);
} else if (coinPools[devPool].idealRate < coinPools[devPool].hashrate){
highPools[devPool] = coinPools[devPool].hashrate - coinPools[devPool].idealRate;
debug.balancer(`Pool ${devPool} is running a high hashrate compared to ideal. Want to decrease by: ${highPools[devPool]} h/s`);
}
}
for (let pool in coinPools){
if (coinPools.hasOwnProperty(pool) && pool !== devPool && activePools.hasOwnProperty(pool)){
coinPools[pool].idealRate = Math.floor(coinMiners.hashrate * (coinPools[pool].percentage/100));
if (coinPools[pool].idealRate > coinPools[pool].hashrate){
lowPools[pool] = coinPools[pool].idealRate - coinPools[pool].hashrate;
debug.balancer(`Pool ${pool} is running a low hashrate compared to ideal. Want to increase by: ${lowPools[pool]} h/s`);
} else if (coinPools[pool].idealRate < coinPools[pool].hashrate){
highPools[pool] = coinPools[pool].hashrate - coinPools[pool].idealRate;
debug.balancer(`Pool ${pool} is running a high hashrate compared to ideal. Want to decrease by: ${highPools[pool]} h/s`);
}
activePools[pool].share = coinPools[pool].percentage;
}
}
if (Object.keys(highPools).length === 0 && Object.keys(lowPools).length === 0){
debug.balancer(`No pools in high or low Pools, so waiting for the next cycle.`);
continue;
}
let freed_miners = {};
if (Object.keys(highPools).length > 0){
for (let pool in highPools){
if (highPools.hasOwnProperty(pool)){
for (let miner in coinPools[pool].miners){
if (coinPools[pool].miners.hasOwnProperty(miner)){
if (coinPools[pool].miners[miner] < highPools[pool] && coinPools[pool].miners[miner] !== 0){
highPools[pool] -= coinPools[pool].miners[miner];
freed_miners[miner] = coinPools[pool].miners[miner];
debug.balancer(`Freeing up ${miner} on ${pool} for ${freed_miners[miner]} h/s`);
delete(coinPools[pool].miners[miner]);
}
}
}
}
}
}
let minerChanges = {};
if (Object.keys(lowPools).length > 0){
for (let pool in lowPools){
if (lowPools.hasOwnProperty(pool)){
minerChanges[pool] = [];
if (Object.keys(freed_miners).length > 0){
for (let miner in freed_miners){
if (freed_miners.hasOwnProperty(miner)){
if (freed_miners[miner] <= lowPools[pool]){
minerChanges[pool].push(miner);
lowPools[pool] -= freed_miners[miner];
debug.balancer(`Snagging up ${miner} for ${pool} for ${freed_miners[miner]} h/s`);
delete(freed_miners[miner]);
}
}
}
}
if(lowPools[pool] > 100){
for (let donatorPool in coinPools){
if(coinPools.hasOwnProperty(donatorPool) && !lowPools.hasOwnProperty(donatorPool)){
for (let miner in coinPools[donatorPool].miners){
if (coinPools[donatorPool].miners.hasOwnProperty(miner)){
if (coinPools[donatorPool].miners[miner] < lowPools[pool] && coinPools[donatorPool].miners[miner] !== 0){
minerChanges[pool].push(miner);
lowPools[pool] -= coinPools[donatorPool].miners[miner];
debug.balancer(`Moving ${miner} for ${pool} from ${donatorPool} for ${coinPools[donatorPool].miners[miner]} h/s`);
delete(coinPools[donatorPool].miners[miner]);
}
if (lowPools[pool] < 50){
break;
}
}
}
if (lowPools[pool] < 50){
break;
}
}
}
}
}
}
}
for (let pool in minerChanges){
if(minerChanges.hasOwnProperty(pool) && minerChanges[pool].length > 0){
minerChanges[pool].forEach(function(miner){
let minerBits = miner.split('_');
cluster.workers[minerBits[0]].send({
type: 'changePool',
worker: minerBits[1],
pool: pool
});
});
}
}
}
}
}
function enumerateWorkerStats(){
let stats, global_stats = {miners: 0, hashes: 0, hashRate: 0, diff: 0};
for (let poolID in activeWorkers){
if (activeWorkers.hasOwnProperty(poolID)){
stats = {
miners: 0,
hashes: 0,
hashRate: 0,
diff: 0
};
for (let workerID in activeWorkers[poolID]){
if (activeWorkers[poolID].hasOwnProperty(workerID)) {
let workerData = activeWorkers[poolID][workerID];
if (typeof workerData !== 'undefined') {
try{
if (workerData.lastContact < ((Math.floor((Date.now())/1000) - 120))){
delete activeWorkers[poolID][workerID];
continue;
}
stats.miners += 1;
stats.hashes += workerData.hashes;
stats.hashRate += workerData.avgSpeed;
stats.diff += workerData.diff;
} catch (err) {
delete activeWorkers[poolID][workerID];
}
} else {
delete activeWorkers[poolID][workerID];
}
}
}
global_stats.miners += stats.miners;
global_stats.hashes += stats.hashes;
global_stats.hashRate += stats.hashRate;
global_stats.diff += stats.diff;
debug.workers(`Worker: ${poolID} currently has ${stats.miners} miners connected at ${stats.hashRate} h/s with an average diff of ${Math.floor(stats.diff/stats.miners)}`);
}
}
console.log(`The proxy currently has ${global_stats.miners} miners connected at ${global_stats.hashRate} h/s with an average diff of ${Math.floor(global_stats.diff/global_stats.miners)}`);
}
function poolSocket(hostname){
let pool = activePools[hostname];
let socket = pool.socket;
let dataBuffer = '';
socket.on('data', (d) => {
dataBuffer += d;
if (dataBuffer.indexOf('\n') !== -1) {
let messages = dataBuffer.split('\n');
let incomplete = dataBuffer.slice(-1) === '\n' ? '' : messages.pop();
for (let i = 0; i < messages.length; i++) {
let message = messages[i];
if (message.trim() === '') {
continue;
}
let jsonData;
try {
jsonData = JSON.parse(message);
}
catch (e) {
if (message.indexOf('GET /') === 0) {
if (message.indexOf('HTTP/1.1') !== -1) {
socket.end('HTTP/1.1' + httpResponse);
break;
}
else if (message.indexOf('HTTP/1.0') !== -1) {
socket.end('HTTP/1.0' + httpResponse);
break;
}
}
console.warn(`${global.threadName}Socket error from ${pool.hostname} Message: ${message}`);
socket.destroy();
break;
}
handlePoolMessage(jsonData, pool.hostname);
}
dataBuffer = incomplete;
}
}).on('error', (err) => {
activePools[pool.hostname].connect();
console.warn(`${global.threadName}Socket error from ${pool.hostname} ${err}`);
}).on('close', () => {
activePools[pool.hostname].connect();
console.warn(`${global.threadName}Socket closed from ${pool.hostname}`);
});
socket.setKeepAlive(true);
socket.setEncoding('utf8');
console.log(`${global.threadName}connected to pool: ${pool.hostname}`);
pool.login();
setInterval(pool.heartbeat, 30000);
}
function handlePoolMessage(jsonData, hostname){
let pool = activePools[hostname];
debug.pool(`Received ${JSON.stringify(jsonData)} from ${pool.hostname}`);
if (jsonData.hasOwnProperty('method')){
// The only time method is set, is with a push of data. Everything else is a reply/
if (jsonData.method === 'job'){
handleNewBlockTemplate(jsonData.params, hostname);
}
} else {
if (jsonData.error !== null){
if (jsonData.error.message === 'Unauthenticated'){
activePools[hostname].connect();
}
return console.error(`Error response from pool ${pool.hostname}: ${JSON.stringify(jsonData.error)}`);
}
let sendLog = pool.sendLog[jsonData.id];
switch(sendLog.method){
case 'login':
pool.id = jsonData.result.id;
handleNewBlockTemplate(jsonData.result.job, hostname);
break;
case 'getjob':
handleNewBlockTemplate(jsonData.result, hostname);
break;
case 'submit':
sendLog.accepted = true;
break;
}
}
}
function handleNewBlockTemplate(blockTemplate, hostname){
let pool = activePools[hostname];
console.log(`Received new block template on ${blockTemplate.height} height from ${pool.hostname}`);
if(pool.activeBlocktemplate){
if (pool.activeBlocktemplate.job_id === blockTemplate.job_id){
debug.pool('No update with this job, it is an upstream dupe');
return;
}
debug.pool('Storing the previous block template');
pool.pastBlockTemplates.enq(pool.activeBlocktemplate);
}
pool.activeBlocktemplate = new pool.coinFuncs.MasterBlockTemplate(blockTemplate);
for (let id in cluster.workers){
if (cluster.workers.hasOwnProperty(id)){
cluster.workers[id].send({
host: hostname,
type: 'newBlockTemplate',
data: pool.coinFuncs.getMasterJob(pool, id)
});
}
}
}
// Miner Definition
function Miner(id, params, ip, pushMessage, portData, minerSocket) {
// Arguments
// minerId, params, ip, pushMessage, portData
// Username Layout - <address in BTC or XMR>.<Difficulty>
// Password Layout - <password>.<miner identifier>.<payment ID for XMR>
// Default function is to use the password so they can login. Identifiers can be unique, payment ID is last.
// If there is no miner identifier, then the miner identifier is set to the password
// If the password is x, aka, old-logins, we're not going to allow detailed review of miners.
// Miner Variables
this.coin = portData.coin;
this.coinFuncs = require(`./lib/${this.coin}.js`)();
this.coinSettings = global.config.coinSettings[this.coin];
this.login = params.login; // Documentation purposes only.
this.password = params.pass; // Documentation purposes only.
this.agent = params.agent; // Documentation purposes only.
this.ip = ip; // Documentation purposes only.
this.socket = minerSocket;
this.messageSender = pushMessage;
this.error = "";
this.valid_miner = true;
this.incremented = false;
let diffSplit = this.login.split("+");
this.fixed_diff = false;
this.difficulty = portData.diff;
this.connectTime = Date.now();
this.pool = defaultPools[portData.coin];
if (diffSplit.length === 2) {
this.fixed_diff = true;
this.difficulty = Number(diffSplit[1]);
} else if (diffSplit.length > 2) {
this.error = "Too many options in the login field";
this.valid_miner = false;
}
if (activePools[this.pool].activeBlocktemplate === null){
this.error = "No active block template";
this.valid_miner = false;
}
this.id = id;
this.heartbeat = function () {
this.lastContact = Date.now();
};
this.heartbeat();
// VarDiff System
this.shareTimeBuffer = support.circularBuffer(8);
this.shareTimeBuffer.enq(this.coinSettings.shareTargetTime);
this.lastShareTime = Date.now() / 1000 || 0;
this.shares = 0;
this.blocks = 0;
this.hashes = 0;
this.logString = this.id + " IP: " + this.ip;
this.validJobs = support.circularBuffer(5);
this.cachedJob = null;
this.minerStats = function(){
if (this.socket.destroyed){
delete activeMiners[this.id];
return;
}
return {
shares: this.shares,
blocks: this.blocks,
hashes: this.hashes,
avgSpeed: Math.floor(this.hashes/(Math.floor((Date.now() - this.connectTime)/1000))),
diff: this.difficulty,
lastContact: Math.floor(this.lastContact/1000),
lastShare: this.lastShareTime,
coin: this.coin,
pool: this.pool,
id: this.id
};
};
// Support functions for how miners activate and run.
this.updateDifficulty = function(){
if (this.hashes > 0 && !this.fixed_diff) {
this.setNewDiff(Math.floor(this.hashes / (Math.floor((Date.now() - this.connectTime) / 1000))) * this.coinSettings.shareTargetTime);
}
};
this.setNewDiff = function (difficulty) {
this.newDiff = Math.round(difficulty);
debug.diff(global.threadName + "Difficulty: " + this.newDiff + " For: " + this.logString + " Time Average: " + this.shareTimeBuffer.average(this.lastShareTime) + " Entries: " + this.shareTimeBuffer.size() + " Sum: " + this.shareTimeBuffer.sum());
if (this.newDiff > this.coinSettings.maxDiff) {
this.newDiff = this.coinSettings.maxDiff;
}
if (this.newDiff < this.coinSettings.minDiff) {
this.newDiff = this.coinSettings.minDiff;
}
if (this.difficulty === this.newDiff) {
return;
}
debug.diff(global.threadName + "Difficulty change to: " + this.newDiff + " For: " + this.logString);
if (this.hashes > 0){
debug.diff(global.threadName + "Hashes: " + this.hashes + " in: " + Math.floor((Date.now() - this.connectTime)/1000) + " seconds gives: " +
Math.floor(this.hashes/(Math.floor((Date.now() - this.connectTime)/1000))) + " hashes/second or: " +
Math.floor(this.hashes/(Math.floor((Date.now() - this.connectTime)/1000))) *this.coinSettings.shareTargetTime + " difficulty versus: " + this.newDiff);
}
this.messageSender('job', this.getJob(activeMiners[this.id], activePools[this.pool].activeBlocktemplate));
};
this.getJob = this.coinFuncs.getJob;
}
// Slave Functions
function handleMinerData(method, params, ip, portData, sendReply, pushMessage, minerSocket) {
/*
Deals with handling the data from miners in a sane-ish fashion.
*/
let miner = activeMiners[params.id];
// Check for ban here, so preconnected attackers can't continue to screw you
if (ip in bans) {
// Handle IP ban off clip.
sendReply("IP Address currently banned");
return;
}
switch (method) {
case 'login':
let difficulty = portData.difficulty;
let minerId = uuidV4();
miner = new Miner(minerId, params, ip, pushMessage, portData, minerSocket);
if (!miner.valid_miner) {
console.log("Invalid miner, disconnecting due to: " + miner.error);
sendReply(miner.error);
return;
}
process.send({type: 'newMiner', data: miner.port});
activeMiners[minerId] = miner;
sendReply(null, {
id: minerId,
job: miner.getJob(miner, activePools[miner.pool].activeBlocktemplate),
status: 'OK'
});
return minerId;
case 'getjob':
if (!miner) {
sendReply('Unauthenticated');
return;
}
miner.heartbeat();
sendReply(null, miner.getJob(miner, activePools[miner.pool].activeBlocktemplate));
break;
case 'submit':
if (!miner) {
sendReply('Unauthenticated');
return;
}
miner.heartbeat();
let job = miner.validJobs.toarray().filter(function (job) {
return job.id === params.job_id;
})[0];
if (!job) {
sendReply('Invalid job id');
return;
}
params.nonce = params.nonce.substr(0, 8).toLowerCase();
if (!nonceCheck.test(params.nonce)) {
console.warn(global.threadName + 'Malformed nonce: ' + JSON.stringify(params) + ' from ' + miner.logString);
sendReply('Duplicate share');
return;
}
if (job.submissions.indexOf(params.nonce) !== -1) {
console.warn(global.threadName + 'Duplicate share: ' + JSON.stringify(params) + ' from ' + miner.logString);
sendReply('Duplicate share');
return;
}
job.submissions.push(params.nonce);
let activeBlockTemplate = activePools[miner.pool].activeBlocktemplate;
let pastBlockTemplates = activePools[miner.pool].pastBlockTemplates;
let blockTemplate = activeBlockTemplate.id === job.templateID ? activeBlockTemplate : pastBlockTemplates.toarray().filter(function (t) {
return t.id === job.templateID;
})[0];
if (!blockTemplate) {
console.warn(global.threadName + 'Block expired, Height: ' + job.height + ' from ' + miner.logString);
if (miner.incremented === false){
miner.newDiff = miner.difficulty + 1;
miner.incremented = true;
} else {
miner.newDiff = miner.difficulty - 1;
miner.incremented = false;
}
miner.messageSender('job', miner.getJob(miner, activePools[miner.pool].activeBlocktemplate, true));
sendReply('Block expired');
return;
}
let shareAccepted = miner.coinFuncs.processShare(miner, job, blockTemplate, params.nonce, params.result);
if (!shareAccepted) {
sendReply('Low difficulty share');
return;
}
let now = Date.now() / 1000 || 0;
miner.shareTimeBuffer.enq(now - miner.lastShareTime);
miner.lastShareTime = now;
sendReply(null, {status: 'OK'});
break;
case 'keepalived':
if (!miner) {
sendReply('Unauthenticated');
return;
}
miner.heartbeat();
sendReply(null, {
status: 'KEEPALIVED'
});
break;
}
}
function activatePorts() {
/*
Reads the current open ports, and then activates any that aren't active yet
{ "port": 80, "ssl": false, "diff": 5000 }
and binds a listener to it.
*/
async.each(global.config.listeningPorts, function (portData) {
if (activePorts.indexOf(portData.port) !== -1) {
return;
}
let handleMessage = function (socket, jsonData, pushMessage, minerSocket) {
if (!jsonData.id) {
console.warn('Miner RPC request missing RPC id');
return;
}
else if (!jsonData.method) {
console.warn('Miner RPC request missing RPC method');
return;
}
else if (!jsonData.params) {
console.warn('Miner RPC request missing RPC params');
return;
}
let sendReply = function (error, result) {
if (!socket.writable) {
return;
}
let sendData = JSON.stringify({
id: jsonData.id,
jsonrpc: "2.0",
error: error ? {code: -1, message: error} : null,
result: result
}) + "\n";
debug.miners(`Data sent to miner (sendReply): ${sendData}`);
socket.write(sendData);
};
handleMinerData(jsonData.method, jsonData.params, socket.remoteAddress, portData, sendReply, pushMessage, minerSocket);
};
function socketConn(socket) {
socket.setKeepAlive(true);
socket.setEncoding('utf8');
let dataBuffer = '';