added config and node model

lib/node.js

@@ -0,0 +1,65 @@
+var Node = function Node(options)
+{
+	this.options = options;
+	this.info = {
+		name: options.name,
+		ip: options.rpcHost,
+		type: options.type,
+		os: options.os
+	};
+
+	this.info.id = this.info.ip;
+	this.info.stats = {
+		active: false,
+		peers: 0,
+		mining: false,
+		block: {
+			number: 0,
+			hash: '?',
+			timestamp: 0
+		},
+		uptime: {
+			down: 0,
+			inc: 0,
+			total: 0
+		}
+	}
+
+	this.web3 = require('ethereum.js');
+
+	var sock = new this.web3.providers.HttpSyncProvider('http://' + this.options.rpcHost + ':' + this.options.rpcPort);
+	this.web3.setProvider(sock);
+
+	return this;
+}
+
+Node.prototype.update = function()
+{
+	var eth = this.web3.eth;
+
+	try {
+		this.info.stats.peers = eth.peerCount;
+	}
+	catch (err) {
+		this.info.stats.peers = null;
+	}
+
+	if(this.info.stats.peers != null) {
+		this.info.stats.block = eth.block(parseInt(eth.number));
+		if(this.info.stats.block.hash != '?'){
+			this.info.stats.block.difficulty = this.web3.toDecimal(this.info.stats.block.difficulty);
+		}
+		this.info.stats.mining = eth.mining;
+		this.info.stats.active = true;
+	} else {
+		this.info.stats.active = false;
+		this.info.stats.uptime.down++;
+	}
+
+	this.info.stats.uptime.inc++;
+	this.info.stats.uptime.total = ((this.info.stats.uptime.inc - this.info.stats.uptime.down) / this.info.stats.uptime.inc) * 100;
+
+	return this.info;
+};
+
+module.exports = Node;