forked from dvandal/cryptonote-nodejs-pool
/
pool.js
1185 lines (1044 loc) · 45.8 KB
/
pool.js
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/**
* 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 apiInterfaces = require('./apiInterfaces.js')(config.daemon, config.wallet, config.api);
let notifications = require('./notifications.js');
let utils = require('./utils.js');
let cnHashing = require('cryptonight-hashing');
config.hashingUtil = config.hashingUtil || false
if (config.hashingUtil)
cnHashing = require('multi-hashing');
// Set nonce pattern - must exactly be 8 hex chars
let noncePattern = new RegExp("^[0-9A-Fa-f]{8}$");
// Set redis database cleanup interval
let cleanupInterval = config.redis.cleanupInterval && config.redis.cleanupInterval > 0 ? config.redis.cleanupInterval : 15;
// 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 = {};
// 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;
config.isRandomX = config.isRandomX || false
let previousOffset = 7
config.daemonType = config.daemonType || 'default'
if (config.daemonType === 'bytecoin')
previousOffset = 3
// Block templates
let validBlockTemplates = [];
let currentBlockTemplate;
// 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;
}
});
/**
* Block template
**/
function BlockTemplate(template, isRandomX){
this.isRandomX = isRandomX
this.blob = template.blocktemplate_blob;
this.difficulty = template.difficulty;
this.height = template.height;
if (this.isRandomX){
this.seed_hash = template.seed_hash;
this.next_seed_hash = template.next_seed_hash;
}
this.reserveOffset = template.reserved_offset;
this.buffer = Buffer.from(this.blob, 'hex');
instanceId.copy(this.buffer, this.reserveOffset + 4, 0, 3);
this.previous_hash = Buffer.alloc(32);
this.buffer.copy(this.previous_hash, 0, previousOffset, 39);
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;
}
BlockTemplate.prototype = {
nextBlob: function(){
this.buffer.writeUInt32BE(++this.extraNonce, this.reserveOffset);
return utils.cnUtil.convert_blob(this.buffer, cnBlobType).toString('hex');
},
nextBlobWithChildNonce: function(){
// Write a 32 bit integer, big-endian style to the 0 byte of the reserve offset.
this.buffer.writeUInt32BE(++this.extraNonce, this.reserveOffset);
// Don't convert the blob to something hashable. You bad.
return this.buffer.toString('hex');
}
};
/**
* Get block template
**/
function getBlockTemplate(callback){
apiInterfaces.rpcDaemon('getblocktemplate',
{reserve_size: 17, wallet_address: config.poolServer.poolAddress},
callback)
}
/**
* Process block template
**/
function processBlockTemplate(template, isRandomX){
if (currentBlockTemplate)
validBlockTemplates.push(currentBlockTemplate);
if (validBlockTemplates.length > 3)
validBlockTemplates.shift();
currentBlockTemplate = new BlockTemplate(template, isRandomX);
for (let minerId in connectedMiners){
let miner = connectedMiners[minerId];
miner.pushMessage('job', miner.getJob());
}
}
/**
* Get LastBlock Header
**/
function getLastBlockHeader(daemon, callback){
apiInterfaces.rpcDaemon('getlastblockheader',{}, callback, daemon);
}
/**
* Job refresh
**/
function jobRefresh(loop){
async.waterfall([
function(callback){
if (!poolStarted) {
startPoolServerTcp(function(successful){ poolStarted = true });
setTimeout(jobRefresh, 1000, loop);
return;
}
getLastBlockHeader(null, function(err, res){
if(err){
setTimeout(jobRefresh, 1000, loop);
return;
}
if (res.status === "OK" && res.hasOwnProperty('block_header')){
let LastHash = res.block_header.hash.toString('hex');
if (!currentBlockTemplate || LastHash !== currentBlockTemplate.previous_hash.toString('hex')) {
callback(null, true);
return;
}else{
callback(true);
return;
}
} else {
setTimeout(jobRefresh, 3000, loop);
return;
}
});
},
function(getbc, callback){
let start = new Date();
getBlockTemplate( function(err, result){
if (err){
log('error', logSystem, 'Error polling getblocktemplate %j', [err]);
if (!poolStarted) log('error', logSystem, 'Could not start pool');
setTimeout(jobRefresh, 1000, loop);
return;
}
let buffer = Buffer.from(result.blocktemplate_blob, 'hex');
let new_hash = Buffer.alloc(32);
buffer.copy(new_hash, 0, previousOffset, 39);
try {
if (!currentBlockTemplate || new_hash.toString('hex') !== currentBlockTemplate.previous_hash.toString('hex')) {
log('info', logSystem, 'New %s block to mine at height %d w/ difficulty of %d', [config.coin, result.height, result.difficulty]);
processBlockTemplate(result, config.isRandomX);
callback(null);
return;
}else{
callback("Duplicate Template Blocked");
return;
}
}catch(e){console.log(`getBlockTemplate ${e}`)}
})
}],
function(err){
if (loop === true){
setTimeout(function(){
jobRefresh(true);
},config.poolServer.blockRefreshInterval);
}
}
);
}
/**
* 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
};
})();
/**
* Miner
**/
function Miner(id, login, pass, ip, port, agent, workerName, startingDiff, noRetarget, pushMessage){
this.id = id;
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 = workerName;
this.pushMessage = pushMessage;
this.heartbeat();
this.noRetarget = noRetarget;
this.difficulty = startingDiff;
this.validJobs = [];
// 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.pushMessage('job', this.getJob());
},
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(){
if (this.lastBlockHeight === currentBlockTemplate.height && !this.pendingDifficulty && this.cachedJob !== null) {
return this.cachedJob;
}
if (!this.proxy) {
let blob = currentBlockTemplate.nextBlob();
this.lastBlockHeight = currentBlockTemplate.height;
let target = this.getTargetHex();
let newJob = {
id: utils.uid(),
extraNonce: currentBlockTemplate.extraNonce,
height: currentBlockTemplate.height,
difficulty: this.difficulty,
diffHex: this.diffHex,
submissions: []
};
if (currentBlockTemplate.isRandomX){
newJob['seed_hash'] = currentBlockTemplate.seed_hash
newJob['next_seed_hash'] = currentBlockTemplate.next_seed_hash
}
this.validJobs.push(newJob);
while (this.validJobs.length > 4)
this.validJobs.shift();
this.cachedJob = {
blob: blob,
job_id: newJob.id,
target: target,
id: this.id
};
if (newJob.seed_hash) {
this.cachedJob.seed_hash = newJob.seed_hash;
this.cachedJob.next_seed_hash = newJob.next_seed_hash;
}
}else {
let blob = currentBlockTemplate.nextBlobWithChildNonce();
this.lastBlockHeight = currentBlockTemplate.height;
let target = this.getTargetHex();
let newJob = {
id: utils.uid(),
extraNonce: currentBlockTemplate.extraNonce,
height: currentBlockTemplate.height,
difficulty: this.difficulty,
diffHex: this.diffHex,
clientPoolLocation: currentBlockTemplate.clientPoolLocation,
clientNonceLocation: currentBlockTemplate.clientNonceLocation,
submissions: []
};
if (currentBlockTemplate.isRandomX){
newJob['seed_hash'] = currentBlockTemplate.seed_hash
newJob['next_seed_hash'] = currentBlockTemplate.next_seed_hash
}
this.validJobs.push(newJob);
while (this.validJobs.length > 4)
this.validJobs.shift();
this.cachedJob = {
blocktemplate_blob: blob,
difficulty: currentBlockTemplate.difficulty,
height: currentBlockTemplate.height,
reserved_offset: currentBlockTemplate.reserveOffset,
client_nonce_offset: currentBlockTemplate.clientNonceLocation,
client_pool_offset: currentBlockTemplate.clientPoolLocation,
target_diff: this.difficulty,
target_diff_hex: this.diffHex,
job_id: newJob.id,
id: this.id
};
// if (newJob.seed_hash) {
// this.cachedJob.seed_hash = newJob.seed_hash;
// this.cachedJob.next_seed_hash = newJob.next_seed_hash;
// }
}
if (typeof config.includeAlgo !== "undefined" && config.includeAlgo)
this.cachedJob['algo'] = config.includeAlgo
if (typeof config.includeHeight !== "undefined" && config.includeHeight)
this.cachedJob['height'] = currentBlockTemplate.height
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;
}
}
}
};
/**
* Handle miner method
**/
function handleMinerMethod(method, params, ip, portData, sendReply, pushMessage){
let miner = connectedMiners[params.id];
// 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 'login':
let login = params.login;
if (!login){
sendReply('Missing login');
return;
}
let port = portData.port;
let pass = params.pass;
let workerName = '';
if (params.rigid) {
workerName = params.rigid.trim();
}
else if (pass) {
workerName = pass.trim();
if (pass.indexOf(':') >= 0 && pass.indexOf('@') >= 0) {
passDelimiterPos = pass.lastIndexOf(':');
workerName = pass.substr(0, passDelimiterPos).trim();
}
workerName = workerName.replace(/:/g, '');
workerName = workerName.replace(/\+/g, '');
workerName = workerName.replace(/\s/g, '');
if (workerName.toLowerCase() === 'x') {
workerName = '';
}
}
if (!workerName || workerName === '') {
workerName = 'undefined';
}
workerName = utils.cleanupSpecialChars(workerName);
let difficulty = portData.difficulty;
let noRetarget = false;
if(config.poolServer.fixedDiff.enabled) {
let fixedDiffCharPos = login.lastIndexOf(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;
}
}
}
}
let addr = login.split(config.poolServer.paymentId.addressSeparator);
let address = addr[0] || null;
let 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(minerId, login, pass, ip, port, params.agent, workerName, difficulty, noRetarget, pushMessage);
connectedMiners[minerId] = miner;
sendReply(null, {
id: minerId,
job: miner.getJob(),
status: 'OK'
});
newConnectedWorker(miner);
break;
case 'getjob':
if (!miner){
sendReply('Unauthenticated');
return;
}
miner.heartbeat();
sendReply(null, miner.getJob());
break;
case 'submit':
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 (!params.nonce || !params.result) {
sendReply('Attack detected');
let minerText = miner ? (' ' + miner.login + '@' + miner.ip) : '';
log('warn', logSystem, 'Malformed miner share: ' + JSON.stringify(params) + ' from ' + minerText);
return;
}
if (!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 share');
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 share');
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 share');
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 share');
return;
}
job.submissions.push(nonce_test);
}
let blockTemplate = currentBlockTemplate.height === job.height ? currentBlockTemplate : validBlockTemplates.filter(function(t){
return t.height === job.height;
})[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;
//miner.retarget(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.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 : ''
});
}
});
}
/**
* Remove connected worker
**/
function removeConnectedWorker(miner, reason){
redisClient.hincrby(config.coin + ':ports:'+miner.port, 'users', '-1');
redisClient.hincrby(config.coin + ':active_connections', 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;
}
}
/**
* Record miner share data
**/
function recordShareData(miner, job, shareDiff, blockCandidate, hashHex, shareType, blockTemplate){
let dateNow = Date.now();
let dateNowSeconds = dateNow / 1000 | 0;
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*/, config.coin + ':scores:roundCurrent', config.coin + ':stats',
/* args */ miner.login, job.difficulty, Date.now(), config.poolServer.slushMining.weight];
}
else {
job.score = job.difficulty;
updateScore = ['hincrbyfloat', config.coin + ':scores:roundCurrent', miner.login, job.score]
}
let redisCommands = [
updateScore,
['hincrby', config.coin + ':shares_actual:roundCurrent', miner.login, job.difficulty],
['zadd', config.coin + ':hashrate', dateNowSeconds, [job.difficulty, miner.login, dateNow].join(':')],
['hincrby', config.coin + ':workers:' + miner.login, 'hashes', job.difficulty],
['hset', config.coin + ':workers:' + miner.login, 'lastShare', dateNowSeconds],
['expire', config.coin + ':workers:' + miner.login, (86400 * cleanupInterval)],
['expire', config.coin + ':payments:' + miner.login, (86400 * cleanupInterval)]
];
if (miner.workerName) {
redisCommands.push(['zadd', config.coin + ':hashrate', dateNowSeconds, [job.difficulty, miner.login + '~' + miner.workerName, dateNow].join(':')]);
redisCommands.push(['hincrby', config.coin + ':unique_workers:' + miner.login + '~' + miner.workerName, 'hashes', job.difficulty]);
redisCommands.push(['hset', config.coin + ':unique_workers:' + miner.login + '~' + miner.workerName, 'lastShare', dateNowSeconds]);
redisCommands.push(['expire', config.coin + ':unique_workers:' + miner.login + '~' + miner.workerName, (86400 * cleanupInterval)]);
}
if (blockCandidate){
redisCommands.push(['hset', config.coin + ':stats', 'lastBlockFound', Date.now()]);
redisCommands.push(['rename', config.coin + ':scores:roundCurrent', config.coin + ':scores:round' + job.height]);
redisCommands.push(['rename', config.coin + ':shares_actual:roundCurrent', config.coin + ':shares_actual:round' + job.height]);
redisCommands.push(['hgetall', config.coin + ':scores:round' + job.height]);
redisCommands.push(['hgetall', config.coin + ':shares_actual:round' + job.height]);
}
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 = Object.keys(workerScores).reduce(function(p, c){
return p + parseFloat(workerScores[c])
}, 0);
let totalShares = Object.keys(workerShares).reduce(function(p, c){
return p + parseInt(workerShares[c])
}, 0);
redisClient.zadd(config.coin + ':blocks:candidates', job.height, [
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': miner.login.substring(0,7)+'...'+miner.login.substring(miner.login.length-7)
});
}
});
log('info', logSystem, 'Accepted %s share at difficulty %d/%d from %s@%s', [shareType, job.difficulty, shareDiff, miner.login, miner.ip]);
}
/**
* Process miner share data
**/
function processShare(miner, job, blockTemplate, params){
let nonce = params.nonce;
let resultHash = params.result;
let template = Buffer.alloc(blockTemplate.buffer.length);
if (!miner.proxy) {
blockTemplate.buffer.copy(template);
template.writeUInt32BE(job.extraNonce, blockTemplate.reserveOffset);
} else {
blockTemplate.buffer.copy(template);
template.writeUInt32BE(job.extraNonce, blockTemplate.reserveOffset);
template.writeUInt32BE(params.poolNonce, job.clientPoolLocation);
template.writeUInt32BE(params.workerNonce, job.clientNonceLocation);
}
let shareBuffer = utils.cnUtil.construct_block_blob(template, Buffer.from(nonce, 'hex'), cnBlobType);
let convertedBlob;
let hash;
let shareType;
if (shareTrustEnabled && miner.trust.threshold <= 0 && miner.trust.penalty <= 0 && Math.random() > miner.trust.probability){
hash = Buffer.from(resultHash, 'hex');
shareType = 'trusted';
}
else {
convertedBlob = utils.cnUtil.convert_blob(shareBuffer, cnBlobType);
let hard_fork_version = convertedBlob[0];
if (config.hashingUtil) {
hash = cryptoNight(convertedBlob);
}
else if (blockTemplate.isRandomX) {
hash = cryptoNight(convertedBlob, Buffer.from(blockTemplate.seed_hash, 'hex'), cnVariant);
}
else {
if (typeof config.includeHeight !== "undefined" && config.includeHeight)
hash = cryptoNight(convertedBlob, cnVariant, job.height);
else
hash = cryptoNight(convertedBlob, cnVariant);
}
log('info', logSystem, 'Mining pool algorithm: %s variant %d, Hard fork version: %d', [cnAlgorithm, cnVariant, hard_fork_version]);
shareType = 'valid';
}
if (hash.toString('hex') !== resultHash) {
log('warn', logSystem, 'Bad hash from miner %s@%s', [miner.login, miner.ip]);
return false;
}
let hashArray = hash.toByteArray().reverse();
let hashNum = bignum.fromBuffer(Buffer.from(hashArray));
let hashDiff = diff1.div(hashNum);
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]);
recordShareData(miner, job, hashDiff.toString(), false, null, shareType);
}
else{
let blockFastHash = utils.cnUtil.get_block_id(shareBuffer, cnBlobType).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);
jobRefresh();
}
});
}
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;
}