Node http proxy, to check headers and files

proxy.js

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

http.createServer(function(request, response) {
  sys.log(request.connection.remoteAddress + ": " + request.method + " " + request.url);
  sys.log("Request headers " + JSON.stringify(request.headers, null, '\t'));

  var options = {
    host: request.headers.host,
    port: 80,
    path: request.url,
    method: request.method,
    headers: request.headers
  };

  var proxy_request = http.request(options, function onResponse(proxy_response) {
    proxy_response.addListener('data', function onData(chunk) {
      sys.debug("Fixing data " + chunk);
      response.write(chunk, 'binary');
    });
    proxy_response.addListener('end', function onEnd() {
      response.end();
    });
    sys.log("Response headers " + JSON.stringify(proxy_response.headers, null, '\t'));
    response.writeHead(proxy_response.statusCode, proxy_response.headers);
  });

  proxy_request.on('error', function(err) {
    sys.debug('There was an error' + err);
    response.end();
  });

  request.addListener('data', function onData(chunk) {
    proxy_request.write(chunk, 'binary');
  });

  request.addListener('end', function onEnd() {
    proxy_request.end();
  });

}).listen(8080);