781 lines
15 KiB
JavaScript
781 lines
15 KiB
JavaScript
'use strict';
|
|
|
|
require('./utils/logger.js');
|
|
|
|
var os = require('os');
|
|
var web3 = require('web3');
|
|
var async = require('async');
|
|
var _ = require('lodash');
|
|
var shelljs = require('shelljs');
|
|
var debounce = require('debounce');
|
|
var registrar = require('./registrar.js');
|
|
var pjson = require('./../package.json');
|
|
var chalk = require('chalk');
|
|
|
|
var Primus = require('primus'),
|
|
Emitter = require('primus-emit'),
|
|
Latency = require('primus-spark-latency'),
|
|
Socket, socket;
|
|
|
|
var ETH_VERSION,
|
|
NET_VERSION,
|
|
PROTOCOL_VERSION,
|
|
API_VERSION,
|
|
COINBASE;
|
|
|
|
var INSTANCE_NAME = process.env.INSTANCE_NAME;
|
|
var WS_SECRET = process.env.WS_SECRET || "eth-net-stats-has-a-secret";
|
|
|
|
var Contract = null;
|
|
|
|
var PENDING_WORKS = true;
|
|
var MAX_BLOCKS_HISTORY = 40;
|
|
var UPDATE_INTERVAL = 5000;
|
|
var PING_INTERVAL = 2000;
|
|
var MINERS_LIMIT = 5;
|
|
var MAX_HISTORY_UPDATE = 50;
|
|
var MAX_CONNECTION_ATTEMPTS = 15;
|
|
|
|
Socket = Primus.createSocket({
|
|
transformer: 'websockets',
|
|
pathname: '/api',
|
|
timeout: 120000,
|
|
strategy: 'disconnect,online,timeout',
|
|
plugin: {emitter: Emitter, sparkLatency: Latency}
|
|
});
|
|
|
|
if(process.env.NODE_ENV === 'production' && INSTANCE_NAME === "")
|
|
{
|
|
INSTANCE_NAME = shelljs.exec('ec2metadata --instance-id 2>/dev/null', {silent: true}).output;
|
|
}
|
|
|
|
console.log('');
|
|
console.info('NET STATS CLIENT');
|
|
console.success('v' + pjson.version);
|
|
console.log('');
|
|
console.log('');
|
|
|
|
function Node ()
|
|
{
|
|
this.info = {
|
|
name: INSTANCE_NAME || (process.env.EC2_INSTANCE_ID || os.hostname()),
|
|
contact: (process.env.CONTACT_DETAILS || ""),
|
|
coinbase: null,
|
|
node: null,
|
|
net: null,
|
|
protocol: null,
|
|
api: null,
|
|
port: (process.env.LISTENING_PORT || 30303),
|
|
os: os.platform(),
|
|
os_v: os.release(),
|
|
client: pjson.version,
|
|
canUpdateHistory: true,
|
|
};
|
|
|
|
this.id = _.camelCase(this.info.name);
|
|
|
|
this.stats = {
|
|
active: false,
|
|
listening: false,
|
|
mining: false,
|
|
hashrate: 0,
|
|
peers: 0,
|
|
pending: 0,
|
|
gasPrice: 0,
|
|
block: {},
|
|
miners: [],
|
|
uptime: 0
|
|
};
|
|
|
|
this._lastStats = JSON.stringify(this.stats);
|
|
this._lastFetch = 0;
|
|
|
|
this._tries = 0;
|
|
this._down = 0;
|
|
this._lastSent = 0;
|
|
this._latency = 0;
|
|
|
|
this._Registrar = null;
|
|
this._knownMiners = [];
|
|
|
|
|
|
this._web3 = false;
|
|
this._socket = false;
|
|
|
|
this.pendingFilter = false;
|
|
this.chainFilter = false;
|
|
this.updateInterval = false;
|
|
this.pingInterval = false;
|
|
this.connectionInterval = false;
|
|
|
|
this._lastChainLog = 0;
|
|
this._lastPendingLog = 0;
|
|
this._connection_attempts = 0
|
|
|
|
this.startWeb3Connection();
|
|
|
|
return this;
|
|
}
|
|
|
|
Node.prototype.startWeb3Connection = function()
|
|
{
|
|
console.info('Starting web3 connection');
|
|
|
|
web3.setProvider( new web3.providers.HttpProvider('http://' + (process.env.RPC_HOST || 'localhost') + ':' + (process.env.RPC_PORT || '8545')) );
|
|
|
|
this.checkWeb3Connection();
|
|
}
|
|
|
|
Node.prototype.checkWeb3Connection = function()
|
|
{
|
|
var self = this;
|
|
|
|
if (!this._web3)
|
|
{
|
|
try {
|
|
var tmp = web3.version.client;
|
|
|
|
if( !_.isUndefined(tmp) )
|
|
{
|
|
console.log(' ', tmp);
|
|
console.success('Web3 connection established');
|
|
|
|
this._web3 = true;
|
|
this.init();
|
|
|
|
return true;
|
|
}
|
|
}
|
|
catch (err)
|
|
{
|
|
if(this._connection_attempts < MAX_CONNECTION_ATTEMPTS)
|
|
{
|
|
console.error('Web3 connection attempt', chalk.cyan('#' + this._connection_attempts++), 'failed');
|
|
console.error('Trying again in', chalk.cyan(500 * this._connection_attempts + ' ms'));
|
|
|
|
setTimeout(function ()
|
|
{
|
|
self.checkWeb3Connection();
|
|
}, 1000 * this._connection_attempts);
|
|
}
|
|
else
|
|
{
|
|
console.error('Web3 connection failed', chalk.cyan(MAX_CONNECTION_ATTEMPTS), 'times. Aborting...');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
Node.prototype.startSocketConnection = function()
|
|
{
|
|
console.info('wsc', 'Starting socket connection');
|
|
|
|
socket = new Socket( process.env.WS_SERVER || 'ws://localhost:3000' );
|
|
|
|
this.setupSockets();
|
|
}
|
|
|
|
Node.prototype.setupSockets = function()
|
|
{
|
|
var self = this;
|
|
|
|
// Setup events
|
|
socket.on('open', function open()
|
|
{
|
|
console.info('wsc', 'The socket connection has been opened.');
|
|
console.log(' ', 'Trying to login');
|
|
|
|
socket.emit('hello', {
|
|
id: self.id,
|
|
info: self.info,
|
|
secret: WS_SECRET
|
|
});
|
|
})
|
|
.on('ready', function()
|
|
{
|
|
self._socket = true;
|
|
console.success('wsc', 'The socket connection has been established.');
|
|
|
|
self.updateBlock();
|
|
self.update(true);
|
|
})
|
|
.on('data', function incoming(data)
|
|
{
|
|
console.info('Socket received some data', data);
|
|
})
|
|
.on('history', function (data)
|
|
{
|
|
console.info('his', 'Got history request');
|
|
|
|
self.getHistory( data );
|
|
})
|
|
.on('node-pong', function(data)
|
|
{
|
|
var latency = Math.ceil( (_.now() - self._latency) / 2 );
|
|
|
|
socket.emit('latency', {
|
|
id: self.id,
|
|
latency: latency
|
|
});
|
|
})
|
|
.on('end', function end()
|
|
{
|
|
self._socket = false;
|
|
console.error('wsc', 'Socket connection end received');
|
|
})
|
|
.on('error', function error(err)
|
|
{
|
|
console.error('wsc', 'Socket error:', err);
|
|
})
|
|
.on('timeout', function ()
|
|
{
|
|
console.error('wsc', 'Socket connection timeout');
|
|
})
|
|
.on('close', function ()
|
|
{
|
|
self._socket = false;
|
|
console.error('wsc', 'Socket connection has been closed');
|
|
})
|
|
.on('offline', function ()
|
|
{
|
|
self._socket = false;
|
|
console.error('wsc', 'Network connection is offline');
|
|
})
|
|
.on('online', function ()
|
|
{
|
|
console.info('wsc', 'Network connection is online');
|
|
})
|
|
.on('reconnect', function ()
|
|
{
|
|
console.info('wsc', 'Socket reconnect attempt started');
|
|
})
|
|
.on('reconnect scheduled', function (opts)
|
|
{
|
|
console.warn('wsc', 'Reconnecting in', opts.scheduled, 'ms');
|
|
console.warn('wsc', 'This is attempt', opts.attempt, 'out of', opts.retries);
|
|
})
|
|
.on('reconnected', function (opts)
|
|
{
|
|
console.success('wsc', 'Socket reconnected successfully after', opts.duration, 'ms');
|
|
})
|
|
.on('reconnect timeout', function (err, opts)
|
|
{
|
|
console.error('wsc', 'Socket reconnect atempt took too long:', err.message);
|
|
})
|
|
.on('reconnect failed', function (err, opts)
|
|
{
|
|
console.error('wsc', 'Socket reconnect failed:', err.message);
|
|
});
|
|
}
|
|
|
|
Node.prototype.emit = function(message, payload)
|
|
{
|
|
if(this._socket)
|
|
{
|
|
try {
|
|
socket.emit(message, payload);
|
|
}
|
|
catch (err) {
|
|
console.error('wsc', 'Socket emit error:', err);
|
|
}
|
|
}
|
|
}
|
|
|
|
Node.prototype.getInfo = function()
|
|
{
|
|
console.info('==>', 'Getting info');
|
|
console.time('Got info');
|
|
|
|
try {
|
|
this.info.coinbase = web3.eth.coinbase;
|
|
this.info.node = web3.version.client;
|
|
this.info.net = web3.version.network;
|
|
this.info.protocol = web3.toDecimal(web3.version.ethereum);
|
|
this.info.api = web3.version.api;
|
|
|
|
console.timeEnd('Got info');
|
|
console.info(this.info);
|
|
|
|
return true;
|
|
}
|
|
catch (err) {
|
|
console.error("Couldn't get version");
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
Node.prototype.setInactive = function()
|
|
{
|
|
this.stats.active = false;
|
|
this.stats.peers = 0;
|
|
this.stats.pending = 0;
|
|
this.stats.mining = false;
|
|
this.stats.hashrate = 0;
|
|
this.stats.gasPrice = 0;
|
|
this.stats.minerName = false;
|
|
this._down++;
|
|
|
|
return this;
|
|
}
|
|
|
|
Node.prototype.setUptime = function()
|
|
{
|
|
this.stats.uptime = ((this._tries - this._down) / this._tries) * 100;
|
|
}
|
|
|
|
Node.prototype.getBlock = function(number)
|
|
{
|
|
var block = {
|
|
number: 0,
|
|
hash: '?',
|
|
difficulty: 0,
|
|
timestamp: 0,
|
|
miner: ''
|
|
};
|
|
|
|
if( _.isUndefined(number) )
|
|
number = "latest";
|
|
|
|
try {
|
|
block = this.formatBlock( web3.eth.getBlock(number, true) );
|
|
}
|
|
catch (err) {
|
|
console.error('getBlock(' + chalk.reset.cyan(number) + '):', err);
|
|
|
|
return false;
|
|
}
|
|
|
|
return block;
|
|
}
|
|
|
|
Node.prototype.formatBlock = function (block)
|
|
{
|
|
if( !_.isUndefined(block) && !_.isUndefined(block.number) && block.number >= 0 && !_.isUndefined(block.difficulty) && !_.isUndefined(block.totalDifficulty) )
|
|
{
|
|
block.difficulty = web3.toDecimal( block.difficulty );
|
|
block.totalDifficulty = web3.toDecimal( block.totalDifficulty );
|
|
|
|
return block;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
Node.prototype.getStatsBlock = function ()
|
|
{
|
|
if(this._socket)
|
|
this._lastStats = JSON.stringify(this.stats);
|
|
|
|
if(this._web3)
|
|
{
|
|
var start = _.now();
|
|
var block = this.getBlock();
|
|
|
|
if( block )
|
|
{
|
|
this.stats.block = block;
|
|
console.success("==>", "Got block:", chalk.reset.cyan(block.number), 'in', chalk.reset.cyan(_.now() - start, 'ms'));
|
|
|
|
this.sendUpdate();
|
|
}
|
|
else
|
|
{
|
|
console.error("xx>", "getStatsBlock couldn't fetch block...");
|
|
console.log(block);
|
|
}
|
|
}
|
|
}
|
|
|
|
Node.prototype.getStats = function(forced)
|
|
{
|
|
var self = this;
|
|
var now = _.now();
|
|
var lastFetchAgo = now - this._lastFetch;
|
|
this._lastFetch = now;
|
|
|
|
if (this._socket)
|
|
this._lastStats = JSON.stringify(this.stats);
|
|
|
|
if (this._web3 && (lastFetchAgo >= UPDATE_INTERVAL || forced === true))
|
|
{
|
|
console.info('==>', 'Getting stats')
|
|
console.log(' ', 'last update:', chalk.reset.cyan(lastFetchAgo));
|
|
console.log(' ', 'forced:', chalk.reset.cyan(forced === true));
|
|
|
|
async.parallel({
|
|
start: function (callback)
|
|
{
|
|
callback(null, _.now());
|
|
},
|
|
peers: function (callback)
|
|
{
|
|
async.nextTick(function () {
|
|
var peers;
|
|
|
|
try {
|
|
peers = web3.toDecimal(web3.net.peerCount);
|
|
}
|
|
catch (err) {
|
|
console.error('xx>', 'PeerCount failed: ', err);
|
|
callback(err, null);
|
|
}
|
|
|
|
callback(null, peers);
|
|
});
|
|
},
|
|
pending: function (callback)
|
|
{
|
|
async.nextTick(function () {
|
|
try {
|
|
web3.eth.getBlockTransactionCount('pending', callback);
|
|
}
|
|
catch (err) {
|
|
console.error('xx>', 'Pending failed: ', err);
|
|
callback(err, null);
|
|
}
|
|
});
|
|
},
|
|
mining: function (callback)
|
|
{
|
|
async.nextTick(function () {
|
|
var mining;
|
|
|
|
try {
|
|
mining = web3.eth.mining;
|
|
}
|
|
catch (err) {
|
|
console.error('xx>', 'Mining failed: ', err);
|
|
callback(err, null);
|
|
}
|
|
|
|
callback(null, mining);
|
|
});
|
|
},
|
|
hashrate: function (callback)
|
|
{
|
|
if(self.stats.mining) {
|
|
async.nextTick(function () {
|
|
var hashrate;
|
|
|
|
try {
|
|
hashrate = web3.eth.hashrate;
|
|
}
|
|
catch (err) {
|
|
console.error('xx>', 'Hashrate failed: ', err);
|
|
callback(err, null);
|
|
}
|
|
|
|
callback(null, hashrate);
|
|
});
|
|
}
|
|
else {
|
|
callback(null, 0);
|
|
}
|
|
},
|
|
gasPrice: function (callback)
|
|
{
|
|
async.nextTick(function () {
|
|
var gasPrice;
|
|
|
|
try {
|
|
gasPrice = web3.toBigNumber(web3.eth.gasPrice).toString(10);
|
|
}
|
|
catch (err) {
|
|
console.error('xx>', 'gasPrice failed: ', err);
|
|
callback(err, null);
|
|
}
|
|
|
|
callback(null, gasPrice);
|
|
});
|
|
},
|
|
// minerName: function (callback)
|
|
// {
|
|
// async.nextTick(function () {
|
|
// var minerName;
|
|
|
|
// try {
|
|
// minerName = self.getMinerName(self.stats.block.miner);
|
|
// }
|
|
// catch (err) {
|
|
// console.error('xx>', 'minerName failed: ', err);
|
|
// callback(err, null);
|
|
// }
|
|
|
|
// callback(null, minerName);
|
|
// });
|
|
// }
|
|
},
|
|
function (err, results)
|
|
{
|
|
self._tries++;
|
|
|
|
if (err) {
|
|
console.error('xx>', 'getStats error: ', err);
|
|
|
|
self.setInactive();
|
|
|
|
return false;
|
|
}
|
|
|
|
results.end = _.now();
|
|
results.diff = results.end - results.start;
|
|
|
|
console.success('==>', 'Got getStats results in', chalk.reset.cyan(results.diff, 'ms'));
|
|
|
|
if(results.peers !== null)
|
|
{
|
|
self.stats.active = true;
|
|
self.stats.peers = results.peers;
|
|
self.stats.pending = results.pending;
|
|
self.stats.mining = results.mining;
|
|
self.stats.hashrate = results.hashrate;
|
|
self.stats.gasPrice = results.gasPrice;
|
|
}
|
|
else {
|
|
self.setInactive();
|
|
}
|
|
|
|
self.setUptime();
|
|
|
|
self.sendUpdate();
|
|
});
|
|
}
|
|
}
|
|
|
|
Node.prototype.getHistory = function (range)
|
|
{
|
|
var self = this;
|
|
|
|
var history = [];
|
|
var interv = {};
|
|
|
|
console.time('=H=', 'his', 'Got history in');
|
|
|
|
if ( _.isUndefined(range) || range === null)
|
|
interv = _.range(this.stats.block.number - 1, MAX_HISTORY_UPDATE);
|
|
|
|
if (!_.isUndefined(range.list))
|
|
interv = range.list;
|
|
|
|
console.info('his', 'Getting history from', chalk.reset.cyan(interv[0]), 'to', chalk.reset.cyan(interv[interv.length - 1]));
|
|
|
|
async.mapSeries(interv, function (number, callback)
|
|
{
|
|
async.nextTick(function ()
|
|
{
|
|
var block;
|
|
|
|
try {
|
|
block = self.formatBlock(web3.eth.getBlock(number, true));
|
|
}
|
|
catch (err) {
|
|
console.error('xx>', 'history block failed: ', err);
|
|
callback(err, null);
|
|
}
|
|
|
|
callback(null, block);
|
|
});
|
|
},
|
|
function (err, results)
|
|
{
|
|
console.timeEnd('=H=', 'his', 'Got history in');
|
|
|
|
if (err) {
|
|
console.error('his', 'history fetch failed:', err);
|
|
|
|
results = false;
|
|
}
|
|
|
|
socket.emit('history', {
|
|
id: self.id,
|
|
history: results.reverse()
|
|
});
|
|
});
|
|
}
|
|
|
|
Node.prototype.getMinerName = function(miner)
|
|
{
|
|
var result = _.find(this._knownMiners, { miner: miner });
|
|
|
|
if (result !== undefined)
|
|
{
|
|
return result.name;
|
|
}
|
|
else
|
|
{
|
|
if (this._Registrar !== null)
|
|
{
|
|
var name = this._Registrar.name(miner);
|
|
|
|
if(name.length > 0)
|
|
{
|
|
this._knownMiners.push({ miner: miner, name: name });
|
|
return name;
|
|
}
|
|
}
|
|
|
|
this._knownMiners.push({ miner: miner, name: false });
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
Node.prototype.updateBlock = function()
|
|
{
|
|
this.getStatsBlock();
|
|
|
|
return this;
|
|
};
|
|
|
|
Node.prototype.update = function(forced)
|
|
{
|
|
this.getStats(forced);
|
|
|
|
return this;
|
|
};
|
|
|
|
Node.prototype.changed = function ()
|
|
{
|
|
var changed = ! _.isEqual( this._lastStats, JSON.stringify(this.stats) );
|
|
|
|
return changed;
|
|
}
|
|
|
|
Node.prototype.prepareStats = function ()
|
|
{
|
|
return {
|
|
id: this.id,
|
|
stats: this.stats
|
|
};
|
|
}
|
|
|
|
Node.prototype.sendUpdate = function (force)
|
|
{
|
|
if( this.changed() || force )
|
|
this.emit('update', this.prepareStats());
|
|
}
|
|
|
|
Node.prototype.ping = function()
|
|
{
|
|
this._latency = _.now();
|
|
this.emit('node-ping', { id: this.id });
|
|
};
|
|
|
|
Node.prototype.setWatches = function()
|
|
{
|
|
var self = this;
|
|
|
|
try {
|
|
this.chainFilter = web3.eth.filter('latest');
|
|
this.chainFilter.watch( function (log)
|
|
{
|
|
var now = _.now();
|
|
var time = now - self._lastChainLog;
|
|
self._lastChainLog = now;
|
|
|
|
console.info('>>>', 'Chain Filter triggered: ', chalk.reset.cyan(now), '- last trigger:', chalk.reset.cyan(time));
|
|
|
|
if(time > 50)
|
|
{
|
|
self.updateBlock();
|
|
}
|
|
else
|
|
{
|
|
debounce(function() {
|
|
self.updateBlock();
|
|
}, 50);
|
|
}
|
|
});
|
|
}
|
|
catch (err)
|
|
{
|
|
console.error("Couldn't set up chain filter");
|
|
console.error(err);
|
|
}
|
|
|
|
try {
|
|
this.pendingFilter = web3.eth.filter('pending');
|
|
this.pendingFilter.watch( function (log)
|
|
{
|
|
var now = _.now();
|
|
var time = now - self._lastPendingLog;
|
|
self._lastPendingLog = now;
|
|
|
|
console.info('>>>', 'Pending Filter triggered', chalk.reset.cyan(now), '- last trigger:', chalk.reset.cyan(time));
|
|
|
|
if(time > 50)
|
|
{
|
|
self.update(true);
|
|
}
|
|
else
|
|
{
|
|
debounce(function() {
|
|
self.update(true);
|
|
}, 50);
|
|
}
|
|
});
|
|
}
|
|
catch (err)
|
|
{
|
|
console.error("Couldn't set up pending filter");
|
|
console.error(err);
|
|
}
|
|
|
|
this.updateInterval = setInterval( function(){
|
|
self.update();
|
|
}, UPDATE_INTERVAL);
|
|
|
|
this.pingInterval = setInterval( function(){
|
|
self.ping();
|
|
}, PING_INTERVAL);
|
|
}
|
|
|
|
Node.prototype.installContract = function()
|
|
{
|
|
var start = _.now();
|
|
|
|
try {
|
|
Contract = web3.eth.contract( registrar.desc );
|
|
this._Registrar = new Contract( registrar.address );
|
|
|
|
console.success('Installed Registrar contract in', chalk.reset.cyan(_.now() - start, 'ms'));
|
|
}
|
|
catch (err)
|
|
{
|
|
console.error("!!!", "eth", "Couldn't set up registrar contract");
|
|
console.error(err);
|
|
}
|
|
}
|
|
|
|
Node.prototype.init = function()
|
|
{
|
|
// Fetch node info
|
|
this.getInfo();
|
|
|
|
// Install Registrar contract
|
|
this.installContract();
|
|
|
|
// Start socket connection
|
|
this.startSocketConnection();
|
|
|
|
// Set filters
|
|
this.setWatches();
|
|
}
|
|
|
|
Node.prototype.stop = function()
|
|
{
|
|
if(this._socket)
|
|
socket.end();
|
|
|
|
if(this.updateInterval)
|
|
clearInterval(this.updateInterval);
|
|
|
|
if(this.pingInterval)
|
|
clearInterval(this.pingInterval);
|
|
|
|
web3.reset();
|
|
}
|
|
|
|
module.exports = Node;
|