simple HTTP proxy server

proxy.js

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

var PORT = process.argv[2] || 1337;

process.on('uncaughtException', function(error) {
  console.error('uncaughtException', error);
});

http.createServer(function(req, res) {
  console.log(req.connection.remoteAddress + ": " + req.method + " " + req.url);

  var target_url = url.parse(req.url);
  var proxy = http.createClient(target_url.port, target_url.hostname);
  var proxy_req = proxy.request(req.method, target_url.path, req.headers);

  proxy_req.addListener('response', function(proxy_res) {
    proxy_res.addListener('data', function(chunk) {
      res.write(chunk, 'binary');
    });
    proxy_res.addListener('end', function() {
      res.end();
    });

    res.writeHead(proxy_res.statusCode, proxy_res.headers);
  });

  req.addListener('data', function(chunk) {
    proxy_req.write(chunk, 'binary');
  });

  req.addListener('end', function() {
    proxy_req.end();
  });

}).listen(PORT, function() {
  console.log('Proxy server listening on port %d', PORT);
});