public function unsubscribe(StackTransport $transport)
{
if (array_key_exists($transport->getId(), $this->members)) {
unset($this->members[$transport->getId()]);
$this->emit("unsubscribe", array($transport));
}
}
/**
* @param StackTransport $transport
*/
public function listenTo(StackTransport $transport)
{
$self = $this;
$transport->on("message", function (RemoteEventMessage $message) use($transport, $self) {
$room = $message->getRoom();
if (!$room) {
return;
}
$event = $message->getEvent();
if ($message->getEvent() == 'subscribe') {
$self->room($room)->subscribe($transport);
// If the transport is disconnected, make sure we 'fake' the unsubscribe
$transport->getWebSocketTransport()->on("close", function () use($self, $transport, $room) {
$self->room($room)->unsubscribe($transport);
// Fake unsubscribe message
$message = new RemoteEventMessage();
$message->setEvent("unsubscribe");
$message->setRoom($room);
$self->emit("unsubscribe", [$transport, $message]);
$self->room($room)->emit("unsubscribe", [$transport, $message]);
});
} elseif ($message->getEvent() == 'unsubscribe') {
$self->room($room)->unsubscribe($transport);
}
$self->room($room)->emit($message->getEvent(), [$transport, $message]);
$self->emit($event, [$transport, $message]);
});
}
/**
* Notify everyone when a user has joined the chat
*
* @param StackTransport $stackTransport
*/
public function onConnect(WebSocketTransportInterface $transport)
{
/**
* @var $stackTransport StackTransport
* @var $jsonTransport RemoteEventTransport
*/
$logger = $this->logger;
$loop = $this->loop;
$stackTransport = StackTransport::create($transport, array(function (TransportInterface $carrier) use($loop, $logger) {
return new RemoteEventTransport($carrier, $loop, $logger);
}));
$jsonTransport = $stackTransport->getTopTransport();
$server = $transport->getHandshakeResponse()->getHeaders()->get('X-WebSocket-Server')->getFieldValue();
$greetingMessage = RemoteEventMessage::create(null, "greeting", "hello world from {$server}!");
$jsonTransport->whenResponseTo($greetingMessage, 0.1)->then(function (RemoteEventMessage $result) use($logger, $server) {
$logger->notice(sprintf("Got '%s' in response to 'hello world from {$server}!'", $result->getData()));
});
$jsonTransport->remoteEvent()->on("greeting", function (RemoteEventMessage $message) use($transport, $logger) {
$logger->notice(sprintf("We got a greeting event from {$transport->getId()}"));
});
}
// Run from command prompt > php demo.php
use Devristo\Phpws\RemoteEvent\RemoteEventTransport;
use Devristo\Phpws\Protocol\StackTransport;
use Devristo\Phpws\Protocol\TransportInterface;
use Devristo\Phpws\Server\WebSocketServer;
$loop = \React\EventLoop\Factory::create();
// Create a logger which writes everything to the STDOUT
$logger = new \Zend\Log\Logger();
$writer = new Zend\Log\Writer\Stream("php://output");
$logger->addWriter($writer);
// Create a WebSocket server and create a router which sends all user requesting /echo to the DemoEchoHandler above
$server = new WebSocketServer("tcp://0.0.0.0:12345", $loop, $logger);
$handler = new \Devristo\Phpws\RemoteEvent\RemoteEvents($logger);
$server->on("connect", function (TransportInterface $transport) use($loop, $logger, $handler) {
$stack = StackTransport::create($transport, array(function (TransportInterface $transport) use($loop, $logger) {
return new RemoteEventTransport($transport, $loop, $logger);
}));
$handler->listenTo($stack);
});
$handler->room("time")->on("subscribe", function (StackTransport $transport) use($logger, $handler) {
$logger->notice("Someone joined our room full of time enthousiasts!!");
});
// Each 0.5 seconds sent the time to all connected clients
$loop->addPeriodicTimer(0.5, function () use($server, $handler, $logger) {
$time = new DateTime();
$string = $time->format("Y-m-d H:i:s");
if (count($handler->room("time")->getMembers())) {
$logger->notice("Broadcasting time to time room: {$string}");
}
$handler->room("time")->remoteEmit("time", $string);
});
