如何获取特定用户的连接对象？

Question

我在使用Ratchet库的实时Symfony应用程序中工作,在这个应用程序中我需要将一些数据发送给特定用户,因此逻辑解决方案是使用SessionProvider将Symfony2 Session对象附加到每个传入的Connection对象.正如文档所述,我已经设置了一个非本地会话处理程序来存储我的会话,即通过PDO存储在数据库中.并且目前工作正常,但我需要获取特定用户的Connection对象以向他发送一些数据,所以在其他方面我需要找到引用此用户的连接对象,我找不到办法它？她是我的服务器代码:

    $app=new AggregateApplication();
    $loop   = \React\EventLoop\Factory::create();
    $context = new \React\ZMQ\Context($loop);
    $pull = $context->getSocket(\ZMQ::SOCKET_PULL);
    $pull->bind('tcp://127.0.0.1:5555');
    $pull->on('message', array($app, 'onNotification'));
    $webSock = new \React\Socket\Server($loop);
    $webSock->listen(8080, '127.0.0.1');
    $handler = $this->getContainer()->get('session.handler');
    $server=new \Ratchet\Wamp\WampServer($app);
    $server = new SessionProvider($server, $handler);
    $webServer = new \Ratchet\Server\IoServer(new \Ratchet\WebSocket\WsServer($server),$webSock);
    $loop->run();

Answer 1

我自己也有完全相同的问题(减去Symfony),这就是我所做的.

基于hello world教程,我用一个数组替换了SplObjectStorage.在介绍我的修改之前,我想评论一下,如果你按照那个教程进行了解并理解了它,那么唯一阻止你自己解决这个问题的方法可能就是不知道SplObjectStorage是什么.

class Chat implements MessageComponentInterface {
    protected $clients;

    public function __construct() {
        $this->clients = array();
    }

    public function onOpen(ConnectionInterface $conn) {
        // Store the new connection to send messages to later
        $this->clients[$conn->resourceId] = $conn;
        echo "New connection! ({$conn->resourceId})\n";
    }

    public function onMessage(ConnectionInterface $from, $msg) {
        $numRecv = count($this->clients) - 1;
        echo sprintf('Connection %d sending message "%s" to %d other connection%s' . "\n"
            , $from->resourceId, $msg, $numRecv, $numRecv == 1 ? '' : 's');

        foreach ($this->clients as $key => $client) {
            if ($from !== $client) {
                // The sender is not the receiver, send to each client connected
                $client->send($msg);
            }
        }
        // Send a message to a known resourceId (in this example the sender)
        $client = $this->clients[$from->resourceId];
        $client->send("Message successfully sent to $numRecv users.");
    }

    public function onClose(ConnectionInterface $conn) {
        // The connection is closed, remove it, as we can no longer send it messages
        unset($this->clients[$conn->resourceId]);

        echo "Connection {$conn->resourceId} has disconnected\n";
    }

    public function onError(ConnectionInterface $conn, \Exception $e) {
        echo "An error has occurred: {$e->getMessage()}\n";

        $conn->close();
    }
}

当然,为了使它真正有用,您可能还想添加数据库连接,并存储/检索这些resourceIds.