From dcff64024846d266d4c0b14e71cbeba9e8a368c2 Mon Sep 17 00:00:00 2001
From: Louis Lam <louislam@users.noreply.github.com>
Date: Wed, 4 Jun 2025 10:04:57 +0800
Subject: [PATCH] Fix (#5875)

Co-authored-by: ptrstr <ptrstr@protonmail.com>
Co-authored-by: Frank Elsinga <frank@elsinga.de>
---
 server/socket-handlers/general-socket-handler.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/server/socket-handlers/general-socket-handler.js b/server/socket-handlers/general-socket-handler.js
index 50dcd946e..0c11de295 100644
--- a/server/socket-handlers/general-socket-handler.js
+++ b/server/socket-handlers/general-socket-handler.js
@@ -91,6 +91,18 @@ module.exports.generalSocketHandler = (socket, server) => {
     });
 
     socket.on("getPushExample", (language, callback) => {
+        try {
+            checkLogin(socket);
+            if (!/^[a-z-]+$/.test(language)) {
+                throw new Error("Invalid language");
+            }
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+            return;
+        }
 
         try {
             let dir = path.join("./extra/push-examples", language);