Fixed bug that the socket-io server always restart when using coroutine style server. (#4854)

CHANGELOG-3.0.md

@@ -105,3 +105,4 @@ composer analyse
 - [#4549](https://github.com/hyperf/hyperf/pull/4549) Fixed bug that `PhpParser::getExprFromValue()` does not support assoc array.
 - [#4835](https://github.com/hyperf/hyperf/pull/4835) Fixed the lost description when using property `$description` and `$signature` for `hyperf/command`.
 - [#4851](https://github.com/hyperf/hyperf/pull/4851) Fixed bug that prometheus server will not be closed automatically when using command which enable event dispatcher.
+- [#4854](https://github.com/hyperf/hyperf/pull/4854) Fixed bug that the `socket-io` client always reconnect when using coroutine style server.

src/socketio-server/src/SocketIO.php

@@ -27,6 +27,7 @@ use Hyperf\SocketIOServer\Parser\Packet;
 use Hyperf\SocketIOServer\Room\EphemeralInterface;
 use Hyperf\SocketIOServer\SidProvider\SidProviderInterface;
 use Hyperf\Utils\ApplicationContext;
+use Hyperf\WebSocketServer\Constant\Opcode;
 use Hyperf\WebSocketServer\Sender;
 use Swoole\Atomic;
 use Swoole\Http\Request;
@@ -105,6 +106,15 @@ class SocketIO implements OnMessageInterface, OnOpenInterface, OnCloseInterface
      */
     public function onMessage($server, $frame): void
     {
+        if ($frame->opcode == Opcode::PING) {
+            if ($server instanceof Response) {
+                $server->push('', Opcode::PONG);
+            } else {
+                $server->push($frame->fd, '', Opcode::PONG);
+            }
+            return;
+        }
+
         if ($frame->data[0] === Engine::PING) {
             $this->renewInAllNamespaces($frame->fd);
             if ($server instanceof Response) {