A reverse proxy in Node - GET only at the moment

node-reverse-proxy.js

// node-reverse-proxy

var sys = require('sys'),
    http = require('http');

function proxy(backend, request, response) {
    var bits = backend.split(':');
    var host = bits[0];
    if (bits.length == 2) {
        var port = parseInt(bits[1], 10);
    } else {
        var port = 80;
    }
    request.setEncoding('binary');
    var method = request.method;
    var path = request.url; // e.g. /status?name=ryan
    var client = http.createClient(port, host);
    var httprequest = client.request(method, path, {'host': host});
    httprequest.addListener('response', function(httpresponse) {
        var statusCode = httpresponse.statusCode;
        var headers = httpresponse.headers;
        httpresponse.setEncoding('binary');
        var body = '';
        httpresponse.addListener('data', function(chunk) {
            body += chunk;
        });
        httpresponse.addListener('end', function() {
            response.writeHead(statusCode, headers);
            response.write(body, 'binary');
            response.end();
        });
    });
    httprequest.end();
}

http.createServer(function (req, res) {
    proxy('localhost', req, res);
}).listen(8001);
sys.puts('Server running at http://127.0.0.1:8001/');