/**
* Stops the server cleanly.
*
* @access public
* @return void
*/
public function stop()
{
if (strpos($this->request->get_remote_ip(), '127.0.0.') === 0) {
// Send back a success message. We may not be successful, but this is our
// last chance to send anything.
$response = new HTTPResponse(200);
$response->set_body('Server shut down.');
$this->write($response);
// Close all listeners.
$this->dispatcher->close_listeners();
// Stop the server loop.
$this->dispatcher->get_server()->stop(time() - 1);
}
}
/**
* Returns the contents of a static file.
*
* @access private
* @return mixed
*/
private function _found_static()
{
// Backgrounding for Windows is not working well (2010-05-30)
if (substr(PHP_OS, 0, 3) === 'WIN') {
$response = new HTTPResponse(200);
$response->set_body(file_get_contents($this->_path), false);
return $response;
}
// Background the process.
$command = 'cat';
$pipe = $this->background($command . ' ' . $this->_path);
// If we couldn't open the process, freak out.
if (!is_resource($pipe)) {
return $this->_notfound();
}
// Close the pipe.
fclose($pipe);
}
/**
* Handle short polling requests.
*
* @access public
* @return void
*/
public function short_polling()
{
$ip = $this->request->get_remote_ip();
$response = new HTTPResponse(200);
// Determine if this is a JSONP request.
$body = array('sp_requests' => self::$_sp_requests[$ip], 'sp_bytes_received' => self::$_sp_bytes_received[$ip], 'sp_bytes_sent' => self::$_sp_bytes_sent[$ip]);
if ($this->request->get_request_var('callback')) {
$response->set_body($this->request->get_request_var('callback') . '(' . json_encode($body) . ');', false);
} else {
$response->set_body($body, true);
}
$this->_log_response($response);
$this->write($response);
}
/**
* Processes the given event.
*
* @access public
* @return void
*/
public function process_event(Controller $mover = null)
{
$key = array_search((int) $this->_cursor, array_keys(self::$_commands));
if ($key === false && !is_null($this->_cursor)) {
return;
}
$commands = array_slice(self::$_commands, $key);
if (empty($commands)) {
return;
}
$response = new HTTPResponse(200);
$body = array('__URI__' => $this->uri, 'cursor' => end(array_keys(self::$_commands)) + 1, 'commands' => $commands);
if ($this->request->get_request_var('callback')) {
$response->set_body($this->request->get_request_var('callback') . '(' . json_encode($body) . ');', false);
} else {
$response->set_body($body, true);
}
$this->write($response);
$this->_cursor = (int) end(array_keys(self::$_commands)) + 1;
}
/**
* Writes the background contents to the response.
*
* @access public
* @param resource $socket
* @param integer $ioevent
* @param resource $process
* @param boolean $split_headers
* @return void
*/
public function background_write($socket, $ioevent, $process, $split_headers = false)
{
$attempts = 0;
$chunk = '';
while ($tmp = @fread($socket, IOStream::MAX_BUFFER_SIZE)) {
$chunk .= $tmp;
}
if (empty($chunk) && empty($this->_background_content)) {
// Write an error response.
$response = new HTTPResponse(500);
$response->set_body('Trouble generating content.');
} else {
$this->_background_content .= $chunk;
// Check to see if the process has finished.
$info = proc_get_status($process);
if (!$info['running']) {
// Make sure the proccess finished successfully.
if ($info['exitcode'] !== 0) {
$response = new HTTPResponse(500);
} else {
$response = new HTTPResponse($this->status);
$config = $this->dispatcher->get_config();
$headers = array('Content-Type' => $this->_mime, 'Date' => date('D, d M Y H:i:s \\G\\M\\T'), 'Expires' => date('D, d M Y H:i:s \\G\\M\\T', time() + $config['CACHE_EXPIRATION']), 'Last-Modified' => date('D, d M Y H:i:s \\G\\M\\T', filemtime($this->_path)), 'Cache-Control' => 'max-age=' . $config['CACHE_EXPIRATION']);
$response->add_headers($headers);
}
if ($split_headers) {
// Split the chunk into headers and content.
list($headers, $content) = explode("\r\n\r\n", $this->_background_content, 2);
// Set the headers.
foreach (explode("\r\n", $headers) as $header) {
list($h, $v) = explode(':', $header);
$response->add_header($h, trim($v));
}
} else {
$content = $this->_background_content;
}
// Add the body content.
$response->set_body($content, false);
}
}
if (isset($response) && $response instanceof HTTPResponse) {
// Send the response.
$this->write($response);
// Remove the handler.
$loop = $this->dispatcher->get_server()->get_loop();
$loop->remove_handler($socket);
// Close the sockets.
if (is_resource($socket)) {
fclose($socket);
}
// Close the process.
proc_close($process);
// Clear the content.
$this->_background_content = '';
}
}
