mining-pool-alt/lib/pool.js
2022-01-15 11:31:38 -06:00

1407 lines
56 KiB
JavaScript

/**
* Cryptonote Node.JS Pool
* https://github.com/dvandal/cryptonote-nodejs-pool
*
* Pool TCP daemon
**/
// Load required modules
let fs = require('fs');
let net = require('net');
let tls = require('tls');
let async = require('async');
let bignum = require('bignum');
let socketMap = new Set()
let apiInterfaces = require('./apiInterfaces.js')(config.daemon, config.wallet, config.api);
let notifications = require('./notifications.js');
let utils = require('./utils.js');
config.hashingUtil = config.hashingUtil || false;
let cnHashing = require('cryptonight-hashing');
if (config.hashingUtil)
cnHashing = require('turtlecoin-multi-hashing');
// Set nonce pattern - must exactly be 8 hex chars
let noncePattern = new RegExp("^[0-9A-Fa-f]{16}$");
// Set redis database cleanup interval
let cleanupInterval = config.redis.cleanupInterval && config.redis.cleanupInterval > 0 ? config.redis.cleanupInterval : 15;
let fallBackCoin = typeof config.poolServer.fallBackCoin !== 'undefined' && config.poolServer.fallBackCoin ? config.poolServer.fallBackCoin : 0
// Initialize log system
let logSystem = 'pool';
require('./exceptionWriter.js')(logSystem);
let threadId = '(Thread ' + process.env.forkId + ') ';
let log = function(severity, system, text, data){
global.log(severity, system, threadId + text, data);
};
// Set cryptonight algorithm
let cnAlgorithm = config.cnAlgorithm || "cryptonight";
let cnVariant = config.cnVariant || 0;
let cnBlobType = config.cnBlobType || 0;
let cryptoNight;
if (!cnHashing || !cnHashing[cnAlgorithm]) {
log('error', logSystem, 'Invalid cryptonight algorithm: %s', [cnAlgorithm]);
} else {
cryptoNight = cnHashing[cnAlgorithm];
}
// Set instance id
let instanceId = utils.instanceId();
// Pool variables
let poolStarted = false;
let connectedMiners = {};
// Get merged mining tag reseved space size
let POOL_NONCE_SIZE = 16 + 1; // +1 for old XMR/new TRTL bugs
let EXTRA_NONCE_TEMPLATE = "02" + POOL_NONCE_SIZE.toString(16) + "00".repeat(POOL_NONCE_SIZE);
let POOL_NONCE_MM_SIZE = POOL_NONCE_SIZE + utils.cnUtil.get_merged_mining_nonce_size();
let EXTRA_NONCE_NO_CHILD_TEMPLATE = "02" + POOL_NONCE_MM_SIZE.toString(16) + "00".repeat(POOL_NONCE_MM_SIZE);
let mergedMining = config.poolServer.mergedMining && (Array.isArray(config.childPools) && config.childPools.length > 0)
function randomIntFromInterval(min,max){
return Math.floor(Math.random()*(max-min+1)+min);
}
// Pool settings
let shareTrustEnabled = config.poolServer.shareTrust && config.poolServer.shareTrust.enabled;
let shareTrustStepFloat = shareTrustEnabled ? config.poolServer.shareTrust.stepDown / 100 : 0;
let shareTrustMinFloat = shareTrustEnabled ? config.poolServer.shareTrust.min / 100 : 0;
let banningEnabled = config.poolServer.banning && config.poolServer.banning.enabled;
let bannedIPs = {};
let perIPStats = {};
let slushMiningEnabled = config.poolServer.slushMining && config.poolServer.slushMining.enabled;
if (!config.poolServer.paymentId) config.poolServer.paymentId = {};
if (!config.poolServer.paymentId.addressSeparator) config.poolServer.paymentId.addressSeparator = "+";
if (config.poolServer.paymentId.validation == null) config.poolServer.paymentId.validation = true;
if (config.poolServer.paymentId.ban == null) config.poolServer.paymentId.ban = false;
if (config.poolServer.paymentId.validations == null) {
config.poolServer.paymentId.validations = []
config.poolServer.paymentId.validation = false;
}
config.isRandomX = config.isRandomX || false
let previousOffset = config.previousOffset || 7
let offset = config.offset || 2
config.daemonType = config.daemonType || 'default'
if (config.daemonType === 'bytecoin')
{
previousOffset = config.previousOffset || 3
offset = config.offset || 3
}
function Create2DArray(rows) {
let arr = [];
for (let i=0;i<rows;i++) {
arr[i] = [];
}
return arr;
}
if (mergedMining)
config.childPools = config.childPools.filter(pool => pool.enabled)
// Block templates
let validBlockTemplates = mergedMining ? Create2DArray(config.childPools.length) : Create2DArray(1);
let currentBlockTemplate = [];
// Child Block templates
let currentChildBlockTemplate = new Array(mergedMining ? config.childPools.length : 1);
// Difficulty buffer
let diff1 = bignum('FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF', 16);
/**
* Convert buffer to byte array
**/
Buffer.prototype.toByteArray = function () {
return Array.prototype.slice.call(this, 0);
};
/**
* Periodical updaters
**/
// Variable difficulty retarget
setInterval(function(){
let now = Date.now() / 1000 | 0;
for (let minerId in connectedMiners){
let miner = connectedMiners[minerId];
if(!miner.noRetarget) {
miner.retarget(now);
}
}
}, config.poolServer.varDiff.retargetTime * 1000);
// Every 30 seconds clear out timed-out miners and old bans
setInterval(function(){
let now = Date.now();
let timeout = config.poolServer.minerTimeout * 1000;
for (let minerId in connectedMiners){
let miner = connectedMiners[minerId];
if (now - miner.lastBeat > timeout){
log('warn', logSystem, 'Miner timed out and disconnected %s@%s', [miner.login, miner.ip]);
delete connectedMiners[minerId];
removeConnectedWorker(miner, 'timeout');
}
}
if (banningEnabled){
for (ip in bannedIPs){
let banTime = bannedIPs[ip];
if (now - banTime > config.poolServer.banning.time * 1000) {
delete bannedIPs[ip];
delete perIPStats[ip];
log('info', logSystem, 'Ban dropped for %s', [ip]);
}
}
}
}, 30000);
/**
* Handle multi-thread messages
**/
process.on('message', function(message) {
switch (message.type) {
case 'banIP':
bannedIPs[message.ip] = Date.now();
break;
case 'BlockTemplate':
let buffer = Buffer.from(message.block.blocktemplate_blob, 'hex');
let new_hash = Buffer.alloc(32);
buffer.copy(new_hash, 0, previousOffset, 39);
try {
log('info', logSystem, 'New %s block to mine at height %d w/ difficulty of %d (%d transactions)', [config.coin, message.block.height, message.block.difficulty, (message.block.num_transactions || 0)]);
if (mergedMining) {
for (var childPoolIndex = 0; childPoolIndex < config.childPools.length; childPoolIndex++) {
processBlockTemplate(message.block, childPoolIndex);
}
} else {
processBlockTemplate(message.block, 0);
}
return;
}catch(e){log('error', logSystem, `BlockTemplate ${e}`)}
break;
case 'ChildBlockTemplate':
let poolIndex = parseInt(message.poolIndex)
try {
if (!currentChildBlockTemplate[poolIndex] || message.block.height > currentChildBlockTemplate[poolIndex].height || (currentChildBlockTemplate[poolIndex].num_transactions == 0 && message.block.num_transactions > 0)) {
log('info', logSystem, 'New %s child block to mine at height %d w/ difficulty of %d (%d transactions)', [config.childPools[poolIndex].coin, message.block.height, message.block.difficulty, (message.block.num_transactions || 0)]);
processChildBlockTemplate(poolIndex, message.block);
return;
}else{
return;
}
}catch(e){log('error', logSystem, `ChildBlockTemplate ${e}`)}
break;
}
});
/**
* Block template
**/
function BlockTemplate(template, parent, indexOfChildPool){
this.blob = template.blocktemplate_blob
this.difficulty = template.difficulty
this.height = template.height
this.seed_hash = template.seed
this.reserveOffset = template.reserved_offset;
// Set this.buffer to the binary decoded version of the BT blob.
this.buffer = Buffer.from(this.blob, 'hex');
// Generate a clean, shiny new buffer.
this.previous_hash = Buffer.alloc(32);
// Copy in bytes 9 through 41 to this.previous_hash from the current BT.
this.buffer.copy(this.previous_hash, 0, 9, 41);
// Reset the Nonce. - This is the per-miner/pool nonce
this.extraNonce = 0;
// The clientNonceLocation is the location at which the client pools should set the nonces for each of their clients.
this.clientNonceLocation = this.reserveOffset + 12;
// The clientPoolLocation is for multi-thread/multi-server pools to handle the nonce for each of their tiers.
this.clientPoolLocation = this.reserveOffset + 8;
this.bits = template.bits
this.buffer = Buffer.from(this.blob, 'hex')
//this.hash = this.idHash = this.prev_hash = template.hash
this.block_version = 0
}
BlockTemplate.prototype = {
nextBlob: function(idBuffer) {
return utils.cnUtil.get_hash_from_block_template_with_extra(this.buffer, idBuffer).toString('hex')
},
nextBlobWithChildNonce: function() {
return this.buffer.toString('hex')
}
}
/**
* Process block template
**/
function processBlockTemplate(template, indexOfChildPool){
let block_template = new BlockTemplate(template, true, indexOfChildPool)
if (currentBlockTemplate[indexOfChildPool])
validBlockTemplates[indexOfChildPool].push(currentBlockTemplate[indexOfChildPool]);
while (validBlockTemplates[indexOfChildPool].length > (mergedMining ? 6 : 3))
validBlockTemplates[indexOfChildPool].shift();
currentBlockTemplate[indexOfChildPool] = block_template;
notifyConnectedMiners(indexOfChildPool)
}
/**
* Process child block template
**/
function processChildBlockTemplate(indexOfChildPool, template){
let block_template = new BlockTemplate(template, false);
currentChildBlockTemplate[indexOfChildPool] = block_template;
// Update the parent block template to include this new child
if (currentBlockTemplate[indexOfChildPool]){
processBlockTemplate(currentBlockTemplate[indexOfChildPool], indexOfChildPool);
}
}
function notifyConnectedMiners(indexOfChildPool){
let now = Date.now() / 1000 | 0;
for (let minerId in connectedMiners){
let miner = connectedMiners[minerId];
if (indexOfChildPool === miner.activeChildPool)
miner.sendReply(null, miner.getJob(), true)
//miner.pushMessage('job', miner.getJob());
}
}
/**
* Variable difficulty
**/
let VarDiff = (function(){
let variance = config.poolServer.varDiff.variancePercent / 100 * config.poolServer.varDiff.targetTime;
return {
variance: variance,
bufferSize: config.poolServer.varDiff.retargetTime / config.poolServer.varDiff.targetTime * 4,
tMin: config.poolServer.varDiff.targetTime - variance,
tMax: config.poolServer.varDiff.targetTime + variance,
maxJump: config.poolServer.varDiff.maxJump
};
})();
function GetRewardTypeAsKey(rewardType){
switch (rewardType) {
case 'solo':
return ':solo'
case 'prop':
return ''
default:
return ''
}
}
/**
* Miner
**/
function Miner(rewardType, childRewardType, id, childPoolIndex, login, pass, ip, port, agent, childLogin, startingDiff, noRetarget, pushMessage, sendReply){
this.rewardType = rewardType
this.childRewardType = childRewardType
this.rewardTypeAsKey = GetRewardTypeAsKey(rewardType)
this.childRewardTypeAsKey = GetRewardTypeAsKey(childRewardType)
this.lastChildBlockHeight = 0
this.id = id;
this.activeChildPool = childPoolIndex || 0;
this.login = login;
this.pass = pass;
this.ip = ip;
this.port = port;
this.proxy = false;
if (agent && agent.includes('xmr-node-proxy')) {
this.proxy = true;
}
this.workerName = 'undefined';
this.childLogin = childLogin;
if (pass.lastIndexOf('@') >= 0 && pass.lastIndexOf('@') < pass.length) {
passDelimiterPos = pass.lastIndexOf('@') + 1;
this.workerName = pass.substr(passDelimiterPos, pass.length).trim();
}
this.pushMessage = pushMessage;
this.sendReply = sendReply
this.heartbeat();
this.noRetarget = noRetarget;
this.difficulty = startingDiff;
this.validJobs = [];
this.workerName2 = pass;
// Vardiff related variables
this.shareTimeRing = utils.ringBuffer(16);
this.lastShareTime = Date.now() / 1000 | 0;
if (shareTrustEnabled) {
this.trust = {
threshold: config.poolServer.shareTrust.threshold,
probability: 1,
penalty: 0
};
}
}
Miner.prototype = {
retarget: function(now){
let options = config.poolServer.varDiff;
let sinceLast = now - this.lastShareTime;
let decreaser = sinceLast > VarDiff.tMax;
let avg = this.shareTimeRing.avg(decreaser ? sinceLast : null);
let newDiff;
let direction;
if (avg > VarDiff.tMax && this.difficulty > options.minDiff){
newDiff = options.targetTime / avg * this.difficulty;
newDiff = newDiff > options.minDiff ? newDiff : options.minDiff;
direction = -1;
}
else if (avg < VarDiff.tMin && this.difficulty < options.maxDiff){
newDiff = options.targetTime / avg * this.difficulty;
newDiff = newDiff < options.maxDiff ? newDiff : options.maxDiff;
direction = 1;
}
else{
return;
}
if (Math.abs(newDiff - this.difficulty) / this.difficulty * 100 > options.maxJump){
let change = options.maxJump / 100 * this.difficulty * direction;
newDiff = this.difficulty + change;
}
this.setNewDiff(newDiff);
this.shareTimeRing.clear();
if (decreaser) this.lastShareTime = now;
},
setNewDiff: function(newDiff){
newDiff = Math.round(newDiff);
if (this.difficulty === newDiff) return;
log('info', logSystem, 'Retargetting difficulty %d to %d for %s', [this.difficulty, newDiff, this.login]);
this.pendingDifficulty = newDiff;
this. sendReply(null, this.getJob(), true)
},
heartbeat: function(){
this.lastBeat = Date.now();
},
getTargetHex: function(){
if (this.pendingDifficulty){
this.lastDifficulty = this.difficulty;
this.difficulty = this.pendingDifficulty;
this.pendingDifficulty = null;
}
let padded = Buffer.alloc(32);
padded.fill(0);
let diffBuff = diff1.div(this.difficulty).toBuffer();
diffBuff.copy(padded, 32 - diffBuff.length);
let buff = padded.slice(0, 4);
let buffArray = buff.toByteArray().reverse();
let buffReversed = Buffer.from(buffArray);
this.target = buffReversed.readUInt32BE(0);
let hex = buffReversed.toString('hex');
return hex;
},
getJob: function(){
let idBuffer = utils.instanceId(4)
let blockTemplate = currentBlockTemplate[this.activeChildPool]
if (mergedMining) {
if (this.lastBlockHeight === blockTemplate.height
&& (!currentChildBlockTemplate[this.activeChildPool] || this.lastChildBlockHeight === currentChildBlockTemplate[this.activeChildPool].height)
&& !this.pendingDifficulty
&& this.cachedJob !== null
&& !config.daemon.alwaysPoll) {
return this.cachedJob;
}
this.lastChildBlockHeight = currentChildBlockTemplate ? currentChildBlockTemplate[this.activeChildPool].height : -1;
newJob.activeChildPool = this.activeChildPool
newJob.childHeight = this.lastChildBlockHeight
}
let blob = this.proxy ? blockTemplate.nextBlobWithChildNonce() : blockTemplate.nextBlob(idBuffer);
this.lastBlockHeight = blockTemplate.height;
let target = this.getTargetHex();
let heightBuffer = Buffer.alloc(8)
heightBuffer.writeUInt32BE(blockTemplate.height, 4)
let newJob = {
id: blob,
unique_id: idBuffer,
height: blockTemplate.height,
submissions: [],
difficulty: miner.difficulty,
extraNonce: blockTemplate.extraNonce
}
let padded = Buffer.alloc(32)
padded.fill(0)
let diffBuff = diff1.div(miner.difficulty).toBuffer()
diffBuff.copy(padded, 32 - diffBuff.length)
let buff = padded.slice(0, 32)
target = buff.toString('hex')
this.validJobs.push(newJob);
while (this.validJobs.length > 4)
this.validJobs.shift();
this.cachedJob = [`0x${blob}`, `0x${blockTemplate.seed_hash}`, `0x${target}`, `0x${heightBuffer.toString('hex')}`]
if (this.proxy) {
newJob.clientPoolLocation = blockTemplate.clientPoolLocation
newJob.clientNonceLocation = blockTemplate.clientNonceLocation
}
return this.cachedJob;
},
checkBan: function(validShare){
if (!banningEnabled) return;
// Init global per-ip shares stats
if (!perIPStats[this.ip]){
perIPStats[this.ip] = { validShares: 0, invalidShares: 0 };
}
let stats = perIPStats[this.ip];
validShare ? stats.validShares++ : stats.invalidShares++;
if (stats.validShares + stats.invalidShares >= config.poolServer.banning.checkThreshold){
if (stats.invalidShares / stats.validShares >= config.poolServer.banning.invalidPercent / 100){
validShare ? this.validShares++ : this.invalidShares++;
log('warn', logSystem, 'Banned %s@%s', [this.login, this.ip]);
bannedIPs[this.ip] = Date.now();
delete connectedMiners[this.id];
process.send({type: 'banIP', ip: this.ip});
removeConnectedWorker(this, 'banned');
}
else{
stats.invalidShares = 0;
stats.validShares = 0;
}
}
}
};
validateMinerPaymentId_difficulty = (address, ip, poolServerConfig, coin, sendReply) => {
if (utils.characterCount(address, '\\+') > 1) {
let message = `Invalid paymentId specified for ${coin}login, ${ip}`;
if (poolServerConfig.paymentId.validation) {
process.send({type: 'banIP', ip: ip});
message += ` banned for ${poolServerConfig.banning.time / 60} minutes`
}
sendReply(message)
log('warn', logSystem, message);
return false
}
if (utils.characterCount(address, '\\.') > 1) {
log('warn', logSystem, `Invalid difficulty specified for ${coin}login`);
sendReply(`Invalid difficulty specified for ${coin}login, ${ip}`)
return false
}
return true
}
/**
* Handle miner method
**/
function handleMinerMethod(socket, method, params, ip, portData, sendReply, pushMessage){
// Check for ban here, so preconnected attackers can't continue to screw you
if (IsBannedIp(ip)){
sendReply('Your IP is banned');
return;
}
switch(method){
case 'eth_submitLogin':
if (!params || !(params instanceof Array)) {
sendReply("No array params specified")
return
}
params = {
login: params[0],
pass: params[1]
};
case 'login':
let login = params.login ? params.login.trim() : null;
if (!login){
sendReply('Missing login');
return;
}
if (!validateMinerPaymentId_difficulty(login, ip, config.poolServer, 'parent ', sendReply))
return
let workerName = params.rigid ? params.rigid.trim() : 'undefined'
if (login.indexOf('@') >= 0 && login.lastIndexOf('@') < login.length) {
passDelimiterPos = login.lastIndexOf('@');
workerName = login.substr(passDelimiterPos + 1, login.length).trim()
login = login.substr(0, passDelimiterPos).trim();
}
let calculated = utils.determineRewardData(login)
login = calculated.address
let rewardType = calculated.rewardType
let address = ''
let paymentid = null
let port = portData.port;
let pass = params.pass;
let childLogin = pass.trim();
let childPoolIndex = 0;
let childRewardType = rewardType
if (mergedMining) {
childPoolIndex = -1
if (!validateMinerPaymentId_difficulty(pass, ip, config.poolServer, 'child ', sendReply))
return
calculated = utils.determineRewardData(pass)
pass = calculated.address
childRewardType = calculated.rewardType
if (pass.indexOf('@') >= 0 && pass.indexOf('@') >= 0) {
passDelimiterPos = pass.lastIndexOf('@');
childLogin = pass.substr(0, passDelimiterPos).trim();
}
childLogin = childLogin.replace(/\s/g, '');
childLogin = utils.cleanupSpecialChars(childLogin);
let addr = childLogin.split(config.poolServer.paymentId.addressSeparator);
address = addr[0] || null;
paymentId = addr[1] || null
if (!address) {
log('warn', logSystem, 'No address specified for login');
sendReply('No address specified for login');
}
if (paymentId && config.poolServer.paymentId.validation) {
let valid = false;
config.poolServer.paymentId.validations.forEach(validation => {
if (paymentId.match(`^([a-zA-Z0-9]){${validation}}$`))
{
return valid = true
}
})
if (!valid) {
log('warn', logSystem, 'Invalid paymentId specified for login');
}
if (config.poolServer.paymentId.ban) {
process.send({type: 'banIP', ip: ip});
sendReply(`Invalid paymentId specified for login, ${portData.ip} banned for ${config.poolServer.banning.time / 60} minutes`);
}
}
for (i = 0; i < config.childPools.length; i++) {
if(config.childPools[i].pattern) {
if (new RegExp(config.childPools[i].pattern, 'i').test(address))
{
childPoolIndex = i
break
}
}
}
if (childPoolIndex < 0)
{
childPoolIndex = fallBackCoin
address = config.childPools[childPoolIndex].poolAddress
childLogin = config.childPools[childPoolIndex].poolAddress
}
if (!utils.validateChildMinerAddress(address, childPoolIndex)) {
let addressPrefix = utils.getAddressPrefix(address);
if (!addressPrefix) addressPrefix = 'N/A';
log('warn', logSystem, 'Invalid address used for childLogin (prefix: %s): %s', [addressPrefix, address]);
sendReply('Invalid address used for childLogin');
return;
}
}
let difficulty = portData.difficulty;
let noRetarget = false;
if(config.poolServer.fixedDiff.enabled) {
let fixedDiffCharPos = login.indexOf(config.poolServer.fixedDiff.addressSeparator);
if (fixedDiffCharPos !== -1 && (login.length - fixedDiffCharPos < 32)){
diffValue = login.substr(fixedDiffCharPos + 1);
difficulty = parseInt(diffValue);
login = login.substr(0, fixedDiffCharPos);
if (!difficulty || difficulty != diffValue) {
log('warn', logSystem, 'Invalid difficulty value "%s" for login: %s', [diffValue, login]);
difficulty = portData.difficulty;
} else {
noRetarget = true;
if (difficulty < config.poolServer.varDiff.minDiff) {
difficulty = config.poolServer.varDiff.minDiff;
}
}
}
}
addr = login.split(config.poolServer.paymentId.addressSeparator);
address = addr[0] || null;
paymentId = addr[1] || null;
if (!address) {
log('warn', logSystem, 'No address specified for login');
sendReply('Invalid address used for login');
return
}
if (paymentId && paymentId.match('^([a-zA-Z0-9]){0,15}$')) {
if (config.poolServer.paymentId.validation) {
process.send({type: 'banIP', ip: ip});
log('warn', logSystem, 'Invalid paymentId specified for login');
} else {
log('warn', logSystem, 'Invalid paymentId specified for login');
}
sendReply(`Invalid paymentId specified for login, ${portData.ip} banned for ${config.poolServer.banning.time / 60} minutes`)
return;
}
if (!utils.validateMinerAddress(address)) {
let addressPrefix = utils.getAddressPrefix(address);
if (!addressPrefix) addressPrefix = 'N/A';
log('warn', logSystem, 'Invalid address used for login (prefix: %s): %s', [addressPrefix, address]);
sendReply('Invalid address used for login');
return;
}
let minerId = utils.uid();
miner = new Miner(rewardType, childRewardType, minerId, childPoolIndex, login, pass, ip, port, params.agent, childLogin, difficulty, noRetarget, pushMessage, sendReply);
if (!socket.miner_ids)
socket.miner_ids = []
socket.miner_ids.push(minerId)
connectedMiners[minerId] = miner;
sendReply(null, true)
newConnectedWorker(miner);
break;
case 'eth_getWork': {
const minerId = params.id ? params.id : (socket.miner_ids && socket.miner_ids.length == 1 ? socket.miner_ids[0] : "");
let miner = connectedMiners[minerId];
if (!miner) {
sendReply('Unauthenticated');
return;
}
miner.heartbeat();
sendReply(null, miner.getJob());
break
}
case 'getjob':
if (!miner){
sendReply('Unauthenticated');
return;
}
miner.heartbeat();
sendReply(null, miner.getJob());
break;
case 'eth_submitWork': {
if (!params || !(params instanceof Array)) {
sendReply("No array params specified");
return;
}
params = {
nonce: params[0].substr(2),
job_id: params[1].substr(2)
}
}
case 'submit': {
const minerId = params.id ? params.id : (socket.miner_ids && socket.miner_ids.length == 1 ? socket.miner_ids[0] : "");
let miner = connectedMiners[minerId];
if (!miner){
sendReply('Unauthenticated');
return;
}
miner.heartbeat();
let job = miner.validJobs.filter(function(job){
return job.id === params.job_id;
})[0];
if (!job){
sendReply('Invalid job id');
return;
}
if (typeof params.nonce !== 'string' || !noncePattern.test(params.nonce)) {
let minerText = miner ? (' ' + miner.login + '@' + miner.ip) : '';
log('warn', logSystem, 'Malformed nonce: ' + JSON.stringify(params) + ' from ' + minerText);
perIPStats[miner.ip] = { validShares: 0, invalidShares: 999999 };
miner.checkBan(false);
sendReply('Duplicate share1');
return;
}
// Force lowercase for further comparison
params.nonce = params.nonce.toLowerCase();
if (!miner.proxy) {
if (job.submissions.indexOf(params.nonce) !== -1){
let minerText = miner ? (' ' + miner.login + '@' + miner.ip) : '';
log('warn', logSystem, 'Duplicate share: ' + JSON.stringify(params) + ' from ' + minerText);
perIPStats[miner.ip] = { validShares: 0, invalidShares: 999999 };
miner.checkBan(false);
sendReply('Duplicate share2');
return;
}
job.submissions.push(params.nonce);
} else {
if (!Number.isInteger(params.poolNonce) || !Number.isInteger(params.workerNonce)) {
let minerText = miner ? (' ' + miner.login + '@' + miner.ip) : '';
log('warn', logSystem, 'Malformed nonce: ' + JSON.stringify(params) + ' from ' + minerText);
perIPStats[miner.ip] = { validShares: 0, invalidShares: 999999 };
miner.checkBan(false);
sendReply('Duplicate share3');
return;
}
let nonce_test = `${params.nonce}_${params.poolNonce}_${params.workerNonce}`;
if (job.submissions.indexOf(nonce_test) !== -1) {
let minerText = miner ? (' ' + miner.login + '@' + miner.ip) : '';
log('warn', logSystem, 'Duplicate share: ' + JSON.stringify(params) + ' from ' + minerText);
perIPStats[miner.ip] = { validShares: 0, invalidShares: 999999 };
miner.checkBan(false);
sendReply('Duplicate share4');
return;
}
job.submissions.push(nonce_test);
}
let isJobBlock = function(b) {
return b.height === job.height && job.childHeight === (
b.childBlockTemplate ? b.childBlockTemplate.height : undefined);
};
let blockTemplate = currentBlockTemplate[miner.activeChildPool]
if (job.childHeight)
blockTemplate = isJobBlock(currentBlockTemplate[miner.activeChildPool]) ? currentBlockTemplate[miner.activeChildPool] : validBlockTemplates[miner.activeChildPool].filter(isJobBlock)[0];
if (!blockTemplate){
sendReply('Block expired');
return;
}
let shareAccepted = processShare(miner, job, blockTemplate, params);
miner.checkBan(shareAccepted);
if (shareTrustEnabled){
if (shareAccepted){
miner.trust.probability -= shareTrustStepFloat;
if (miner.trust.probability < shareTrustMinFloat)
miner.trust.probability = shareTrustMinFloat;
miner.trust.penalty--;
miner.trust.threshold--;
}
else{
log('warn', logSystem, 'Share trust broken by %s@%s', [miner.login, miner.ip]);
miner.trust.probability = 1;
miner.trust.penalty = config.poolServer.shareTrust.penalty;
}
}
if (!shareAccepted){
sendReply('Rejected share: invalid result');
return;
}
let now = Date.now() / 1000 | 0;
miner.shareTimeRing.append(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;
default:
sendReply('Invalid method');
let minerText = miner ? (' ' + miner.login + '@' + miner.ip) : '';
log('warn', logSystem, 'Invalid method: %s (%j) from %s', [method, params, minerText]);
break;
}
}
/**
* New connected worker
**/
function newConnectedWorker(miner){
log('info', logSystem, 'Miner connected %s@%s on port', [miner.login, miner.ip, miner.port]);
if (miner.workerName !== 'undefined') log('info', logSystem, 'Worker Name: %s', [miner.workerName]);
if (miner.difficulty) log('info', logSystem, 'Miner difficulty fixed to %s', [miner.difficulty]);
redisClient.sadd(`${config.coin}:workers_ip:${miner.login}`, miner.ip);
redisClient.hincrby(`${config.coin}:ports:${miner.port}`, 'users', 1);
redisClient.hincrby(`${config.coin}:active_connections${miner.rewardTypeAsKey}`, `${miner.login}~${miner.workerName}`, 1, function(error, connectedWorkers) {
if (connectedWorkers === 1) {
notifications.sendToMiner(miner.login, 'workerConnected', {
'LOGIN' : miner.login,
'MINER': `${miner.login.substring(0,7)}...${miner.login.substring(miner.login.length-7)}`,
'IP': miner.ip.replace('::ffff:', ''),
'PORT': miner.port,
'WORKER_NAME': miner.workerName !== 'undefined' ? miner.workerName : ''
});
}
});
if (config.poolServer.mergedMining) {
redisClient.sadd(`${config.childPools[miner.activeChildPool].coin}:workers_ip:${miner.childLogin}`, miner.ip);
redisClient.hincrby(`${config.childPools[miner.activeChildPool].coin}:ports:${miner.port}`, 'users', 1);
redisClient.hincrby(`${config.childPools[miner.activeChildPool].coin}:active_connections${miner.childRewardTypeAsKey}`, `${miner.childLogin}~${miner.workerName}`, 1, function(error, connectedWorkers) {
});
let redisCommands = config.childPools.map(item => {
return ['hdel', `${config.coin}:workers:${miner.login}`, `${item.coin}`,]
})
redisClient.multi(redisCommands).exec(function(error, replies) {
if(error) {
log('error', logSystem, 'Failed to clear childCoins from parent in redis %j \n %j', [err, redisCommands]);
}
})
redisClient.hset(`${config.coin}:workers:${miner.login}`, `${config.childPools[miner.activeChildPool].coin}`, miner.childLogin)
redisClient.hset(`${config.childPools[miner.activeChildPool].coin}:workers:${miner.childLogin}`, `${config.coin}`, miner.login)
}
}
/**
* Remove connected worker
**/
function removeConnectedWorker(miner, reason){
redisClient.hincrby(`${config.coin}:ports:${miner.port}`, 'users', '-1');
if (mergedMining) {
redisClient.hincrby(`${config.childPools[miner.activeChildPool].coin}:ports:${miner.port}`, 'users', '-1');
redisClient.hincrby(`${config.childPools[miner.activeChildPool].coin}:active_connections${miner.childRewardTypeAsKey}`, `${miner.childLogin}~${miner.workerName}`, 1, function(error, connectedWorkers) {
});
}
redisClient.hincrby(`${config.coin}:active_connections${miner.rewardTypeAsKey}`, `${miner.login}~${miner.workerName}`, -1, function(error, connectedWorkers) {
if (reason === 'banned') {
notifications.sendToMiner(miner.login, 'workerBanned', {
'LOGIN' : miner.login,
'MINER': `${miner.login.substring(0,7)}...${miner.login.substring(miner.login.length-7)}`,
'IP': miner.ip.replace('::ffff:', ''),
'PORT': miner.port,
'WORKER_NAME': miner.workerName !== 'undefined' ? miner.workerName : ''
});
} else if (!connectedWorkers || connectedWorkers <= 0) {
notifications.sendToMiner(miner.login, 'workerTimeout', {
'LOGIN' : miner.login,
'MINER': `${miner.login.substring(0,7)}...${miner.login.substring(miner.login.length-7)}`,
'IP': miner.ip.replace('::ffff:', ''),
'PORT': miner.port,
'WORKER_NAME': miner.workerName !== 'undefined' ? miner.workerName : '',
'LAST_HASH': utils.dateFormat(new Date(miner.lastBeat), 'yyyy-mm-dd HH:MM:ss Z')
});
}
});
}
/**
* Return if IP has been banned
**/
function IsBannedIp(ip){
if (!banningEnabled || !bannedIPs[ip]) return false;
let bannedTime = bannedIPs[ip];
let bannedTimeAgo = Date.now() - bannedTime;
let timeLeft = config.poolServer.banning.time * 1000 - bannedTimeAgo;
if (timeLeft > 0){
return true;
}
else {
delete bannedIPs[ip];
log('info', logSystem, 'Ban dropped for %s', [ip]);
return false;
}
}
function recordShareData(miner, job, shareDiff, blockCandidate, hashHex, shareType, blockTemplate, pool){
let dateNow = Date.now();
let dateNowSeconds = dateNow / 1000 | 0;
let coin = pool !== null ? pool.coin : config.coin;
let login = pool !== null ? miner.childLogin : miner.login;
let job_height = pool !== null ? job.childHeight : job.height
let workerName = miner.workerName;
let rewardType = pool !== null ? miner.childRewardType : miner.rewardType
let updateScore;
// Weighting older shares lower than newer ones to prevent pool hopping
if (slushMiningEnabled) {
// We need to do this via an eval script because we need fetching the last block time and
// calculating the score to run in a single transaction (otherwise we could have a race
// condition where a block gets discovered between the time we look up lastBlockFound and
// insert the score, which would give the miner an erroneously huge proportion on the new block)
updateScore = ['eval', `
local age = (ARGV[3] - redis.call('hget', KEYS[2], 'lastBlockFound')) / 1000
local score = string.format('%.17g', ARGV[2] * math.exp(age / ARGV[4]))
redis.call('hincrbyfloat', KEYS[1], ARGV[1], score)
return {score, tostring(age)}
`,
2 /*keys*/, coin + ':scores:roundCurrent', coin + ':stats',
/* args */ login, job.difficulty, Date.now(), config.poolServer.slushMining.weight];
}
else {
job.score = job.difficulty;
updateScore = ['hincrbyfloat', `${coin}:scores:${rewardType}:roundCurrent`, login, job.score]
}
let redisCommands = [
updateScore,
['hincrby', `${coin}:shares_actual:${rewardType}:roundCurrent`, login, job.difficulty],
['zadd', `${coin}:hashrate`, dateNowSeconds, [job.difficulty, login, dateNow, rewardType].join(':')],
['hincrby', `${coin}:workers:${login}`, 'hashes', job.difficulty],
['hset', `${coin}:workers:${login}`, 'lastShare', dateNowSeconds],
['expire', `${coin}:workers:${login}`, (86400 * cleanupInterval)],
['expire', `${coin}:payments:${login}`, (86400 * cleanupInterval)]
];
if (workerName) {
redisCommands.push(['zadd', `${coin}:hashrate`, dateNowSeconds, [job.difficulty, login + '~' + workerName, dateNow, rewardType].join(':')]);
redisCommands.push(['hincrby', `${coin}:unique_workers:${login}~${workerName}`, 'hashes', job.difficulty]);
redisCommands.push(['hset', `${coin}:unique_workers:${login}~${workerName}`, 'lastShare', dateNowSeconds]);
redisCommands.push(['expire', `${coin}:unique_workers:${login}~${workerName}`, (86400 * cleanupInterval)]);
}
if (blockCandidate){
redisCommands.push(['hset', `${coin}:stats`, `lastBlockFound${rewardType}`, Date.now()]);
redisCommands.push(['rename', `${coin}:scores:prop:roundCurrent`, coin + ':scores:prop:round' + job_height]);
redisCommands.push(['rename', `${coin}:scores:solo:roundCurrent`, coin + ':scores:solo:round' + job_height]);
redisCommands.push(['rename', `${coin}:shares_actual:prop:roundCurrent`, `${coin}:shares_actual:prop:round${job_height}`]);
redisCommands.push(['rename', `${coin}:shares_actual:solo:roundCurrent`, `${coin}:shares_actual:solo:round${job_height}`]);
if (rewardType === 'prop') {
redisCommands.push(['hgetall', `${coin}:scores:prop:round${job_height}`]);
redisCommands.push(['hgetall', `${coin}:shares_actual:prop:round${job_height}`]);
}
if (rewardType === 'solo') {
redisCommands.push(['hget', `${coin}:scores:solo:round${job_height}`, login]);
redisCommands.push(['hget', `${coin}:shares_actual:solo:round${job_height}`, login]);
}
}
redisClient.multi(redisCommands).exec(function(err, replies){
if (err){
log('error', logSystem, 'Failed to insert share data into redis %j \n %j', [err, redisCommands]);
return;
}
if (slushMiningEnabled) {
job.score = parseFloat(replies[0][0]);
let age = parseFloat(replies[0][1]);
log('info', logSystem, 'Submitted score ' + job.score + ' for difficulty ' + job.difficulty + ' and round age ' + age + 's');
}
if (blockCandidate){
let workerScores = replies[replies.length - 2];
let workerShares = replies[replies.length - 1];
let totalScore = 0;
let totalShares = 0;
if (rewardType === 'solo') {
totalScore = workerScores
totalShares = workerShares
}
if (rewardType === 'prop') {
totalScore = Object.keys(workerScores).reduce(function(p, c){
return p + parseFloat(workerScores[c])
}, 0);
totalShares = Object.keys(workerShares).reduce(function(p, c){
return p + parseInt(workerShares[c])
}, 0);
}
redisClient.zadd(coin + ':blocks:candidates', job_height, [
rewardType,
login,
hashHex,
Date.now() / 1000 | 0,
blockTemplate.difficulty,
totalShares,
totalScore
].join(':'), function(err, result){
if (err){
log('error', logSystem, 'Failed inserting block candidate %s \n %j', [hashHex, err]);
}
});
notifications.sendToAll('blockFound', {
'HEIGHT': job_height,
'HASH': hashHex,
'DIFFICULTY': blockTemplate.difficulty,
'SHARES': totalShares,
'MINER': login.substring(0,7)+'...'+login.substring(login.length-7)
});
}
});
log('info', logSystem, 'Accepted %s share at difficulty %d/%d from %s@%s', [shareType, job.difficulty, shareDiff, login, miner.ip]);
}
function getShareBuffer(miner, job, blockTemplate, params) {
if (miner.proxy) {
template.writeUInt32BE(params.poolNonce, job.clientPoolLocation);
template.writeUInt32BE(params.workerNonce, job.clientNonceLocation);
}
try {
let nonceBuffer = Buffer.from(params.nonce, 'hex')
let nonceBufferReversed = nonceBuffer.reverse()
return utils.cnUtil.get_blob_from_block_template(blockTemplate.buffer, job.unique_id, nonceBufferReversed)
} catch (e) {
log('error', logSystem, "Can't get share buffer with nonce %s from %s@%s: %s", [params.nonce, miner.login, miner.ip, e]);
return null;
}
}
/**
* Process miner share data
**/
function processShare(miner, job, blockTemplate, params){
let shareBuffer = getShareBuffer(miner, job, blockTemplate, params)
if (!shareBuffer) {
return false
}
let shareType;
let convertedBlob = shareBuffer
let resultBuffer = Buffer.from(params.job_id, 'hex')
let nonceBuffer = Buffer.from(params.nonce, 'hex')
let nonceBufferReversed = nonceBuffer.reverse()
let heightBuffer = Buffer.alloc(8)
heightBuffer.writeUInt32LE(job.height, 0)
let hash = utils.cnUtil.get_pow_hash(resultBuffer, nonceBufferReversed, heightBuffer)
log('info', logSystem, 'Mining pool algorithm: %s', [cnAlgorithm]);
shareType = 'valid'
let hashDiff = diff1.div(bignum.fromBuffer(hash))
console.log('hashDiff ', hashDiff.toNumber())
console.log('blocDiff ', blockTemplate.difficulty)
console.log('job Diff ', job.difficulty)
if (hashDiff.ge(blockTemplate.difficulty)){
apiInterfaces.rpcDaemon('submitblock', [shareBuffer.toString('hex')], function(error, result){
if (error){
log('error', logSystem, 'Error submitting block at height %d from %s@%s, share type: "%s" - %j', [job.height, miner.login, miner.ip, shareType, error]);
}
else{
let blockFastHash = utils.cnUtil.get_id_hash(shareBuffer).toString('hex');
log('info', logSystem,
'Block %s found at height %d by miner %s@%s - submit result: %j',
[blockFastHash.substr(0, 6), job.height, miner.login, miner.ip, result]
);
recordShareData(miner, job, hashDiff.toString(), true, blockFastHash, shareType, blockTemplate, null);
}
});
}
else if (hashDiff.lt(job.difficulty)){
log('warn', logSystem, 'Rejected low difficulty share of %s from %s@%s', [hashDiff.toString(), miner.login, miner.ip]);
return false;
}
else{
recordShareData(miner, job, hashDiff.toString(), false, null, shareType, null, null);
}
if (!job.childHeight)
return true
var childBlockTemplate = blockTemplate.childBlockTemplate;
if (childBlockTemplate) {
if (mergedMining){
let pool = config.childPools[miner.activeChildPool]
if (hashDiff.ge(childBlockTemplate.difficulty)){
let mergedBuffer = null
try {
mergedBuffer = utils.cnUtil.construct_mm_child_block_blob(shareBuffer, cnBlobType, childBlockTemplate.buffer);
} catch (e) {
log('error', logSystem, "Failed to construct MM child block: " + e);
}
if (mergedBuffer === null) {
recordShareStatusMerged(miner, 'invalid');
} else {
let onChildSuccess = (result) => {
let blockFastHash = utils.cnUtil.get_block_id(mergedBuffer, 2).toString('hex')
log('info', logSystem,
'Child Block %s found at height %d by miner %s@%s - submit result: %j',
[blockFastHash.substr(0, 6), job.childHeight, miner.workerName, miner.ip, result]);
recordShareData(miner, job, hashDiff.toString(), true, blockFastHash, shareType, childBlockTemplate, pool);
}
apiInterfaces.rpcDaemon('submitblock', [mergedBuffer.toString('hex')], function(error, result){
if (error){
log('error', logSystem, 'Error submitting child block at height %d from %s@%s, share type: "%s" - %j', [job.childHeight, miner.login, miner.ip, shareType, error]);
}
else{
onChildSuccess(result)
}
}, pool.childDaemon);
}
}
else if (hashDiff.lt(job.difficulty)){
log('warn', logSystem, 'Rejected low difficulty share of %s from %s@%s', [hashDiff.toString(), miner.workerName, miner.ip]);
return false;
}
else{
recordShareData(miner, job, hashDiff.toString(), false, null, shareType, null, pool);
}
}
return true;
}
return true;
}
/**
* Start pool server on TCP ports
**/
let httpResponse = ' 200 OK\nContent-Type: text/plain\nContent-Length: 20\n\nMining server online';
function startPoolServerTcp(callback){
log('info', logSystem, 'Clear values for connected workers in redis database.');
redisClient.del(config.coin + ':active_connections');
async.each(config.poolServer.ports, function(portData, cback){
let handleMessage = function(socket, jsonData, pushMessage){
if (!jsonData.id) {
log('warn', logSystem, 'Miner RPC request missing RPC id');
return;
}
else if (!jsonData.method) {
log('warn', logSystem, 'Miner RPC request missing RPC method');
return;
}
else if (!jsonData.params) {
log('warn', logSystem, 'Miner RPC request missing RPC params');
return;
}
let sendReply = function(error, result, excludeId = false){
if(!socket.writable) return;
let data = {
jsonrpc: "2.0",
result: result
}
if (!excludeId)
data.id = jsonData.id
if (error)
data.error = {code: -1, message: error}
let sendData = JSON.stringify(
data
) + "\n";
socket.write(sendData);
};
handleMinerMethod(socket, jsonData.method, jsonData.params, socket.remoteAddress, portData, sendReply, pushMessage);
};
let socketResponder = function(socket){
socket.setKeepAlive(true);
socket.setEncoding('utf8');
socketMap.add(socket)
let dataBuffer = '';
let pushMessage = function(method, params){
if(!socket.writable) return;
let sendData = JSON.stringify({
jsonrpc: "2.0",
method: method,
params: params
}) + "\n";
socket.write(sendData);
};
socket.on('data', function(d){
dataBuffer += d;
if (Buffer.byteLength(dataBuffer, 'utf8') > 10240){ //10KB
dataBuffer = null;
log('warn', logSystem, 'Socket flooding detected and prevented from %s', [socket.remoteAddress]);
socket.destroy();
return;
}
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;
}
}
log('warn', logSystem, 'Malformed message from %s: %s', [socket.remoteAddress, message]);
socket.destroy();
break;
}
try {
handleMessage(socket, jsonData, pushMessage);
} catch (e) {
log('warn', logSystem, 'Malformed message from ' + socket.remoteAddress + ' generated an exception. Message: ' + message);
if (e.message) log('warn', logSystem, 'Exception: ' + e.message);
}
}
dataBuffer = incomplete;
}
}).on('error', function(err){
if (err.code !== 'ECONNRESET')
log('warn', logSystem, 'Socket error from %s %j', [socket.remoteAddress, err]);
socketMap.delete[socket]
socket.destroy()
}).on('close', function(){
pushMessage = function(){};
if (socket.miner_ids) socket.miner_ids.forEach(miner_id => delete connectedMiners[miner_id]);
socketMap.delete[socket]
});
};
if (portData.ssl) {
if (!config.poolServer.sslCert) {
log('error', logSystem, 'Could not start server listening on port %d (SSL): SSL certificate not configured', [portData.port]);
cback(true);
} else if (!config.poolServer.sslKey) {
log('error', logSystem, 'Could not start server listening on port %d (SSL): SSL key not configured', [portData.port]);
cback(true);
} else if (!fs.existsSync(config.poolServer.sslCert)) {
log('error', logSystem, 'Could not start server listening on port %d (SSL): SSL certificate file not found (configuration error)', [portData.port]);
cback(true);
} else if (!fs.existsSync(config.poolServer.sslKey)) {
log('error', logSystem, 'Could not start server listening on port %d (SSL): SSL key file not found (configuration error)', [portData.port]);
cback(true);
} else {
let options = {
key: fs.readFileSync(config.poolServer.sslKey),
cert: fs.readFileSync(config.poolServer.sslCert),
};
if (config.poolServer.sslCA && fs.existsSync(config.poolServer.sslCA)) {
options.ca = fs.readFileSync(config.poolServer.sslCA)
}
tls.createServer(options, socketResponder).listen(portData.port, function (error, result) {
if (error) {
log('error', logSystem, 'Could not start server listening on port %d (SSL), error: $j', [portData.port, error]);
cback(true);
return;
}
log('info', logSystem, 'Clear values for SSL port %d in redis database.', [portData.port]);
redisClient.del(config.coin + ':ports:'+portData.port);
redisClient.hset(config.coin + ':ports:'+portData.port, 'port', portData.port);
log('info', logSystem, 'Started server listening on port %d (SSL)', [portData.port]);
cback();
});
}
}
else {
net.createServer(socketResponder).listen(portData.port, function (error, result) {
if (error) {
log('error', logSystem, 'Could not start server listening on port %d, error: $j', [portData.port, error]);
cback(true);
return;
}
log('info', logSystem, 'Clear values for port %d in redis database.', [portData.port]);
redisClient.del(config.coin + ':ports:'+portData.port);
redisClient.hset(config.coin + ':ports:'+portData.port, 'port', portData.port);
log('info', logSystem, 'Started server listening on port %d', [portData.port]);
cback();
});
}
}, function(err){
if (err)
callback(false);
else
callback(true);
});
}
/**
* Initialize pool server
**/
(function init(loop){
async.waterfall([
function(callback){
if (!poolStarted) {
startPoolServerTcp(function(successful){ poolStarted = true });
setTimeout(init, 1000, loop);
return;
}
callback(true)
}
],
function(err){
if (loop === true){
setTimeout(function(){
init(true);
},config.poolServer.blockRefreshInterval);
}
}
);
})();