Merge pull request #98 from cubedro/develop

version 0.0.7

app.js

@@ -1,7 +1,4 @@
-var sleep = require('sleep');
+'use strict';
-
-if(process.env.NODE_ENV === 'production')
-	sleep.sleep(15);
 
 var nodeModel = require('./lib/node');
 

lib/node.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var web3 = require('web3');
 var _ = require('lodash');
 var os = require('os');
@@ -9,19 +11,25 @@ var pjson = require('./../package.json');
 var Primus = require('primus'),
 	Emitter = require('primus-emit'),
 	Latency = require('primus-spark-latency'),
-	Socket;
+	Socket, socket;
 
 var ETH_VERSION,
 	NET_VERSION,
 	PROTOCOL_VERSION,
-	API_VERSION;
+	API_VERSION,
+	COINBASE;
 
 var INSTANCE_NAME = process.env.INSTANCE_NAME;
-var COINBASE = '';
+var WS_SECRET = process.env.WS_SECRET || "eth-net-stats-has-a-secret";
 
 var Contract = null;
 
-web3.setProvider(new web3.providers.HttpProvider('http://' + (process.env.RPC_HOST || 'localhost') + ':' + (process.env.RPC_PORT || '8080')));
+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;
 
 Socket = Primus.createSocket({
 	transformer: 'websockets',
@@ -36,50 +44,26 @@ if(process.env.NODE_ENV === 'production' && INSTANCE_NAME === "")
 	INSTANCE_NAME = shelljs.exec('ec2metadata --instance-id', {silent: true}).output;
 }
 
-var socket = new Socket(process.env.WS_SERVER || 'ws://localhost:3000');
-var WS_SECRET = process.env.WS_SECRET || "eth-net-stats-has-a-secret";
-
-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;
 
 function Node()
 {
-	var self = this;
-
-	try {
-		ETH_VERSION = web3.version.client;
-		NET_VERSION = web3.version.network;
-		PROTOCOL_VERSION = web3.toDecimal(web3.version.ethereum);
-		API_VERSION = web3.version.api;
-		COINBASE = web3.eth.coinbase;
-	}
-	catch (err) {
-		console.error("Couldn't get version");
-	}
-
 	this.info = {
 		name: INSTANCE_NAME || (process.env.EC2_INSTANCE_ID || os.hostname()),
 		contact: (process.env.CONTACT_DETAILS || ""),
-		node: ETH_VERSION,
+		coinbase: null,
-		net: NET_VERSION,
+		node: null,
-		protocol: PROTOCOL_VERSION,
+		net: null,
-		api: API_VERSION,
+		protocol: null,
+		api: null,
 		port: (process.env.LISTENING_PORT || 30303),
 		os: os.platform(),
 		os_v: os.release(),
 		client: pjson.version,
 		canUpdateHistory: true,
-		coinbase: COINBASE
 	};
 
 	this.id = _.camelCase(this.info.name);
 
-	console.info(this.info);
-
 	this.stats = {
 		active: false,
 		listening: false,
@@ -100,23 +84,86 @@ function Node()
 	this._lastSent = 0;
 	this._latency = 0;
 
-	this.blocks = [];
-
 	this._Registrar = null;
 	this._knownMiners = [];
 
-	this._socket = null;
+
+	this._web3 = false;
+	this._socket = false;
+
 	this.pendingFilter = false;
 	this.chainFilter = false;
 	this.updateInterval = false;
 	this.pingInterval = false;
+	this.connectionInterval = false;
 
 	this._lastLatestLog = 0;
 	this._lastPendingLog = 0;
+	this._called = 0
 
+	this.startWeb3Connection();
+
+	return this;
+}
+
+Node.prototype.startWeb3Connection = function()
+{
+	console.info("==> Starting eth connection");
+
+	web3.setProvider( new web3.providers.HttpProvider('http://' + (process.env.RPC_HOST || 'localhost') + ':' + (process.env.RPC_PORT || '8080')) );
+
+	this.checkWeb3Connection();
+}
+
+Node.prototype.checkWeb3Connection = function()
+{
+	var self = this;
+
+	if(!this._web3)
+	{
+		try {
+			var tmp = web3.version.client;
+
+			if( !_.isUndefined(tmp) )
+			{
+				console.log('eth ', tmp);
+				console.info("==> Ethereum connection established");
+
+				this._web3 = true;
+				this.init();
+
+				return true;
+			}
+		}
+		catch(err)
+		{
+			console.error('xx> Ethereum connection atempt #' + this.called++ + ' failed; ', err);
+
+			process.nextTick( function()
+			{
+				self.checkWeb3Connection();
+			});
+		}
+	}
+}
+
+Node.prototype.startSocketConnection = function()
+{
+	console.info("==> 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('The connection has been opened.');
+		console.info('==> The connection has been opened.');
 		console.info('Trying to login');
 
 		socket.emit('hello', {
@@ -125,18 +172,27 @@ function Node()
 			secret: WS_SECRET
 		});
 	})
-	.on('end', function end()
+	.on('ready', function()
 	{
-		self._socket = false;
+		self._socket = true;
-		console.error('Socket connection closed');
+		self.sendUpdate(true);
+
+		console.info('==> The connection has been established.');
 	})
-	.on('error', function error(err)
+	.on('data', function incoming(data)
 	{
-		console.error("socket:", err);
+		console.info('Received some data', data);
 	})
-	.on('reconnecting', function reconnecting(opts)
+	.on('history', function (data)
 	{
-		console.warn('We are scheduling a reconnect operation', opts);
+		console.info('==> Getting history');
+
+		var reqHistory = self.getHistory( data );
+
+		socket.emit('history', {
+			id: self.id,
+			history: reqHistory
+		});
 	})
 	.on('node-pong', function(data)
 	{
@@ -147,32 +203,32 @@ function Node()
 			latency: latency
 		});
 	})
-	.on('data', function incoming(data)
+	.on('end', function end()
 	{
-		console.info('Received some data', data);
+		self._socket = false;
+		console.error('xx> Socket connection closed');
 	})
-	.on('ready', function()
+	.on('error', function error(err)
 	{
-		self._socket = true;
+		console.error("socket:", err);
-		self.sendUpdate(true);
-
-		console.info('The connection has been established.');
 	})
-	.on('history', function (data)
+	.on('reconnecting', function reconnecting(opts)
 	{
-		console.info('Getting history.');
+		console.warn('We are scheduling a reconnect operation', opts);
-		var reqHistory = self.getHistory( data );
-
-		console.info('Sending history.');
-		socket.emit('history', {
-			id: self.id,
-			history: reqHistory
-		});
 	});
+}
 
-	this.init();
+Node.prototype.emit = function(message, payload)
-
+{
-	return this;
+	if(this._socket)
+	{
+		try {
+			socket.emit(message, payload);
+		}
+		catch (err) {
+			console.error("socket.emit:", err);
+		}
+	}
 }
 
 Node.prototype.isActive = function()
@@ -203,6 +259,26 @@ Node.prototype.isActive = function()
 	return false;
 }
 
+Node.prototype.getInfo = function()
+{
+	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.info(this.info);
+
+		return true;
+	}
+	catch (err) {
+		console.error("Couldn't get version");
+	}
+
+	return false;
+}
+
 Node.prototype.getBlock = function(number)
 {
 	var block = {
@@ -213,21 +289,22 @@ Node.prototype.getBlock = function(number)
 	};
 
 	if( _.isUndefined(number) ){
-		try {
+		number = "latest";
-			number = web3.eth.blockNumber;
+		// try {
+		// 	number = web3.eth.blockNumber;
 
-			if(number === this.stats.block.number)
+		// 	if(number === this.stats.block.number)
-				return this.stats.block;
+		// 		return this.stats.block;
-		}
+		// }
-		catch (err) {
+		// catch (err) {
-			console.error("blockNumber:", err);
+		// 	console.error("blockNumber:", err);
-		}
+		// }
 	}
 
 	try {
 		block = web3.eth.getBlock(number, true);
 
-		if(block.hash != '?' && !_.isUndefined(block.difficulty) )
+		if( block.hash != '?' && !_.isUndefined(block.difficulty) )
 		{
 			block.difficulty = web3.toDecimal( block.difficulty );
 		}
@@ -474,19 +551,6 @@ Node.prototype.setWatches = function()
 	}, PING_INTERVAL);
 }
 
-Node.prototype.emit = function(message, payload)
-{
-	if(this._socket)
-	{
-		try {
-			socket.emit(message, payload);
-		}
-		catch (err) {
-			console.error("socket.emit:", err);
-		}
-	}
-}
-
 Node.prototype.installContract = function()
 {
 	try {
@@ -502,9 +566,11 @@ Node.prototype.installContract = function()
 
 Node.prototype.init = function()
 {
+	this.getInfo();
+	this.startSocketConnection();
 	this.installContract();
-	this.update();
 	this.setWatches();
+	this.update();
 }
 
 Node.prototype.stop = function()

package.json

@@ -1,7 +1,7 @@
 {
   "name": "eth-net-intelligence-api",
   "description": "Ethereum Network Intelligence API",
-  "version": "0.0.6",
+  "version": "0.0.7",
   "private": true,
   "main": "./app.js",
   "directories": {
@@ -15,7 +15,6 @@
     "primus-emit": "0.1.2",
     "primus-spark-latency": "0.1.1",
     "shelljs": "0.4.0",
-    "sleep": "2.0.0",
     "web3": "0.3.4",
     "ws": "0.7.1"
   },