FIX: the server now closes the socket after 30s of no pong

back/src/Services/IoSocketHelpers.ts

@@ -47,4 +47,13 @@ export function emitError(Client: ExSocketInterface, message: string): void {
         Client.send(serverToClientMessage.serializeBinary().buffer, true);
     }
     console.warn(message);
-}
+}
+
+export const pongMaxInterval = 30000; // the maximum duration (in ms) between pongs before we shutdown the connexion.
+
+export function refresLogoutTimerOnPong(ws: ExSocketInterface): void {
+    if(ws.pongTimeout) clearTimeout(ws.pongTimeout);
+    ws.pongTimeout = setTimeout(() => {
+        ws.close();
+    }, pongMaxInterval);
+}