app.js

var http = require('http');
var fs   = require('fs');
var sys  = require('sys');
var io   = require('socket.io');
var port = 13401;

var server = http.createServer(function(req, res){
	res.writeHead(301, {
		'Content-Type': 'text/html',
		'Location': 'http://localhost/',
	});
});
server.listen(port);
console.log('node.js/socket.io server listening on port %d', port);

/* set variables */
var json = {
	'count' : 0,
	'test'  : 'hoge',
	'chs'   : {},
};

/* socket.io */
var socket = io.listen(server);
socket.on('connection', function(client){
	json.count++;
	client.broadcast(JSON.stringify(json));
	client.send(JSON.stringify(json));
	
	client.on('message', function(message){
		var obj = JSON.parse(message);
		switch(obj.method){
			case 'create':
				if((!obj.chName)||(!obj.opName)){
					return;
				}
				json.chs[obj.chName] = {
					'oparator' : obj.opName,
					'state'    : 'setup',
					'src'      : '',
					'type'     : '',
					'time'     : '',
					'comment'  : {
						'name'    : '',
						'content' : '',
					},
				}
				console.log('created channel ' + obj.chName + ' by ' + obj.opName);
				break;
			case 'config_source':
				if((!obj.chName)||(!obj.src)||(!obj.type)){
					return;
				}
				json.chs[obj.chName].state = 'stop';
				json.chs[obj.chName].src   = obj.src;
				json.chs[obj.chName].type  = obj.type;
				break;
			case 'config_state':
				if((!obj.chName)||(!obj.state)){
					return;
				}
				json.chs[obj.chName].state = obj.state;
				break;
			case 'config_time':
				if((!obj.chName)||(!obj.time)){
					return;
				}
				json.chs[obj.chName].time = obj.time;
				break;
			case 'chat_update':
				if((!obj.chName)||(!obj.name)||(!obj.content)){
					return;
				}
				json.chs[obj.chName].comment.name    = obj.name;
				json.chs[obj.chName].comment.content = obj.content;
				console.log(obj.name + ' is said: ' + obj.content + ' on ' + obj.chName);
				break;
		}
		client.broadcast(JSON.stringify(json));
		client.send(JSON.stringify(json));
	}) 
	client.on('disconnect', function(){
		json.count--;
		client.broadcast(JSON.stringify(json));
	});
});