// Parse the URL, and make sure we can handle the schema.
  $uri = parse_url($url);
  switch ($uri['scheme']) {
    case 'http':
  //    $port = isset($uri['port']) ? $uri['port'] : 80;
  //    $host = $uri['host'] . ($port != 80 ? ':'. $port : '');
  //    $fp = @fsockopen($uri['host'], $port, $errno, $errstr, 15);
    	$fp = @fsockopen('http://proxy.address.tld', '80');
    break;
    case 'https':
      // Note: Only works for PHP 4.3 compiled with OpenSSL.
      $port = isset($uri['port']) ? $uri['port'] : 443;
      $host = $uri['host'] . ($port != 443 ? ':'. $port : '');
      $fp = @fsockopen('ssl://'. $uri['host'], $port, $errno, $errstr, 20);
      break;
    default:
      $result->error = 'invalid schema '. $uri['scheme'];
      return $result;
  }

  // Make sure the socket opened properly.
  if (!$fp) {
    $result->error = trim($errno .' '. $errstr);
    return $result;
  }

  // Construct the path to act on.
  $path = isset($uri['path']) ? $uri['path'] : '/';
  if (isset($uri['query'])) {
    $path .= '?'. $uri['query'];
  }

  // Create HTTP request.
  $defaults = array(
    // RFC 2616: "non-standard ports MUST, default ports MAY be included".
    // We don't add the port to prevent from breaking rewrite rules checking
    // the host that do not take into account the port number.
    'Host' => "Host: $host",
    'User-Agent' => 'User-Agent: Drupal (+http://drupal.org/)',
    'Content-Length' => 'Content-Length: '. strlen($data)
  );

  foreach ($headers as $header => $value) {
    $defaults[$header] = $header .': '. $value;
  }

  // $request = $method .' '. $path ." HTTP/1.0\r\n";
  $request = '$method '.$uri['scheme'].'://'.$uri['host'].$path.' HTTP/1.1\r\n';
  // $request .= implode("\r\n", $defaults);
  $request .= "\r\n\r\n";
  if ($data) {
    $request .= $data ."\r\n";
  }
  $result->request = $request;