public function onMessage(WebSocketConnection $connection, $msg) { $message = \Blackjack\json_parse($msg); if (!isset($message['alias'])) { return; } $alias = $message['alias']; if ($alias === 'subscribe') { if ($this->isSubscribed($connection) || !isset($message['table_id'])) { $connection->close(); return; } $tableId = $message['table_id']; /** @var WebSocketObservableTable $table */ $table = $this->tableManager->getTableById($tableId); if ($table === null) { return; } $this->subscribe($connection, $table); return; } if ($alias === 'unsubscribe') { if (!$this->isSubscribed($connection)) { return; } $this->unsubscribe($connection); return; } if ($alias === 'query') { $connection->send(json_encode(['alias' => 'tables', 'data' => ['tables' => $this->tableManager->getTables()->map(function (Table $table) { return ['id' => $table->getId(), 'players' => $table->getSeats()->filter(function (TableSeat $seat) { return $seat->getPlayer() !== null; })->map(function (TableSeat $seat) { return ['player' => $seat->getPlayer()->getName()]; })->elements()]; })->elements()]])); return; } }
/** * Watch for incoming data. * * @param Connection $connection */ private function handleSocketEvents(Connection $connection) { $buffer = ''; $connection->getSocket()->on('data', function ($data) use(&$buffer, $connection) { $buffer .= $data; while (($newlinePosition = strpos($buffer, "\n")) !== false) { $jsonMessage = substr($buffer, 0, $newlinePosition); $buffer = substr($buffer, $newlinePosition + 1); try { $connection->setLastMessageReceivedAt(new \DateTime()); $message = $this->deserializer->deserialize(\Blackjack\json_parse($jsonMessage)); $connection->notify($message); } catch (\Exception $e) { // Invalid message $connection->getSocket()->write(json_encode(['alias' => 'invalid_message'])); $connection->getSocket()->close(); return; } } // Limit buffer to 1 MB $bufferSizeLimit = 1024 * 1024; if (strlen($buffer) > $bufferSizeLimit) { $buffer = substr($buffer, strlen($buffer) - $bufferSizeLimit); } }); $connection->getSocket()->on('close', function () use($connection) { $this->handlePlayerDisconnection($connection); }); }