<?php
namespace Ratchet\Server;
use Ratchet\MessageComponentInterface;
use React\EventLoop\LoopInterface;
use React\Socket\ServerInterface;
use React\EventLoop\Factory as LoopFactory;
use React\Socket\Server as Reactor;
use React\Socket\SecureServer as SecureReactor;
/**
* Creates an open-ended socket to listen on a port for incoming connections.
* Events are delegated through this to attached applications
*/
class IoServer {
/**
* @var \React\EventLoop\LoopInterface
*/
public $loop;
/**
* @var \Ratchet\MessageComponentInterface
*/
public $app;
/**
* The socket server the Ratchet Application is run off of
* @var \React\Socket\ServerInterface
*/
public $socket;
/**
* @param \Ratchet\MessageComponentInterface $app The Ratchet application stack to host
* @param \React\Socket\ServerInterface $socket The React socket server to run the Ratchet application off of
* @param \React\EventLoop\LoopInterface|null $loop The React looper to run the Ratchet application off of
*/
public function __construct(MessageComponentInterface $app, ServerInterface $socket, LoopInterface $loop = null) {
if (false === strpos(PHP_VERSION, "hiphop")) {
gc_enable();
}
set_time_limit(0);
ob_implicit_flush();
$this->loop = $loop;
$this->app = $app;
$this->socket = $socket;
$socket->on('connection', array($this, 'handleConnect'));
}
/**
* @param \Ratchet\MessageComponentInterface $component The application that I/O will call when events are received
* @param int $port The port to server sockets on
* @param string $address The address to receive sockets on (0.0.0.0 means receive connections from any)
* @return IoServer
*/
public static function factory(MessageComponentInterface $component, $port = 80, $address = '0.0.0.0') {
$loop = LoopFactory::create();
$socket = new Reactor($address . ':' . $port, $loop);
return new static($component, $socket, $loop);
}
/**
* Run the application by entering the event loop
* @throws \RuntimeException If a loop was not previously specified
*/
public function run() {
if (null === $this->loop) {
throw new \RuntimeException("A React Loop was not provided during instantiation");
}
// @codeCoverageIgnoreStart
$this->loop->run();
// @codeCoverageIgnoreEnd
}
/**
* Triggered when a new connection is received from React
* @param \React\Socket\ConnectionInterface $conn
*/
public function handleConnect($conn) {
$conn->decor = new IoConnection($conn);
$conn->decor->resourceId = (int)$conn->stream;
$uri = $conn->getRemoteAddress();
$conn->decor->remoteAddress = trim(
parse_url((strpos($uri, '://') === false ? 'tcp://' : '') . $uri, PHP_URL_HOST),
'[]'
);
$this->app->onOpen($conn->decor);
$conn->on('data', function ($data) use ($conn) {
$this->handleData($data, $conn);
});
$conn->on('close', function () use ($conn) {
$this->handleEnd($conn);
});
$conn->on('error', function (\Exception $e) use ($conn) {
$this->handleError($e, $conn);
});
}
/**
* Data has been received from React
* @param string $data
* @param \React\Socket\ConnectionInterface $conn
*/
public function handleData($data, $conn) {
try {
$this->app->onMessage($conn->decor, $data);
} catch (\Exception $e) {
$this->handleError($e, $conn);
}
}
/**
* A connection has been closed by React
* @param \React\Socket\ConnectionInterface $conn
*/
public function handleEnd($conn) {
try {
$this->app->onClose($conn->decor);
} catch (\Exception $e) {
$this->handleError($e, $conn);
}
unset($conn->decor);
}
/**
* An error has occurred, let the listening application know
* @param \Exception $e
* @param \React\Socket\ConnectionInterface $conn
*/
public function handleError(\Exception $e, $conn) {
$this->app->onError($conn->decor, $e);
}
}