Node.js server which will bounce requests to other servers.

bounceserver.js

/**
 * bounceserver.js
 * License: MIT (http://www.opensource.org/licenses/mit-license.php/)
 * Author: Jason Feinstein (jason.feinstein@gmail.com)
 * 
 * Instructions:
 *  1. Install node.js: http://nodejs.org
 *  2. run this file, listing the bounce addresses like so:
 *     node bounceserver.js http://mybounceaddress:1111/ http://google.com
 *  3. Start sending requests to the server. They will be bounced properly!
 */

var http = require('http');
var url = require('url');

// Collect the destinations.
var destinations = process.argv.slice(2);
destinations.forEach(function(val, index, array){
    destinations[index] = url.parse(val);
});

// Create the server.
var server = http.createServer(function (req, res) {
    var body = "",
        requestID = (new Date()).getTime();

    // Collect data from the request.
    req.on('data', function (chunk) {
        body += chunk;
    });

    // When the request is finished, pipe it to the destinations.
    req.on('end', function (){
        console.log(new Date() + ": Request "+requestID+" Received.");

        // Always return 200 (good idea?)
        res.writeHead(200);
        
        // For each destination, make a request to the destinations.
        for (var i = 0, len = destinations.length; i < len; i++) {
            (function(destination){
                var bounceRequest = http.request({
                        hostname: destination.hostname,
                        port: destination.port,
                        path: destination.path,
                        headers: req.headers,
                        auth: req.auth,
                        method: req.method
                    }, function(bounceRes) {
                        console.log(new Date() + ": Request "+requestID+"'s' Bounce to "+destination.hostname+" Finished With "+bounceRes.statusCode);
                    }
                );

                bounceRequest.write(body);
                bounceRequest.end();
            })(destinations[i]);
        }

        // Simple response content.
        res.end("");
    });

});

var port = 1337,
    address = '0.0.0.0'; // same as 127.0.0.1, but available outside

// start the server
server.listen(port, address);

// inform users
console.log("Server listening on "+address+":"+port+", bouncing to: ", destinations.map(function(obj){return obj.href}));