Node js tutorial

cli.js

var dgram = require("dgram");
var fs = require("fs");
var http = require("http");

var udp = dgram.createSocket("udp4");
var buf = new Buffer("ping");
udp.send(buf, 0, 4, 42, '10.10.26.62');
console.log("pinged the object");

var controllers = {
    index:function(req, res) {
        res.write("hello from planet oscon - im from Brasil");
        res.end();
    },
    message:function(req, res) {
        var file = fs.createWriteStream("dump");
        req.on('data', function(data){
            file.write(data);
        });
        req.on('end', function() {
            file.end();
            res.end('ok');
            console.log('message received');
        });
    },
    http_proxy:function(req, res) {
        req.url.replace(/\/*\/http:\/\/(.*?)\/(.*)/,function(x, host, path){
            var params = {host:host, port:80, path: "/" + path};
            http.get(params, function(http_res){
                http_res.pipe(res);
            }).on('error',function(e){
                console.log("something bad happened: ", e);
            });
        });
    }
}

var Routes = function(req, res) {
    this.req = req;
    this.res = res;
}
Routes.prototype = {
    handle:function() {
        switch(this.req.url) {
            case '/':
                controllers.index(this.req, this.res);
                break;
            case '/message':
                controllers.message(this.req, this.res);
                break;
            default:
                this.handle_patterns();
        }
    },
    handle_patterns:function() {
        if( this.req.url.indexOf("/*") == 0 ) {
            controllers.http_proxy(this.req, this.res);
        } else {
            res.writeHead(404);
            res.end()
        }
    }
}

var server = http.createServer(function(req, res){
    console.log("Request: ", req.httpVersion, req.method, req.url, req.headers);
    if( req.httpVersion > 1.1 ) {
        res.writeHead(505);
        res.end()
    } else {
        new Routes(req, res).handle();
    }   
});
server.listen(9000);