En-/decryption fixed

backend/middleware/authMiddleware.js

@@ -0,0 +1,16 @@
+import User from '../models/community/user.js';
+
+export const authenticate = async (req, res, next) => {
+    const userId = req.headers.userid;
+    const authCode = req.headers.authcode;
+    if (!userId || !authCode) {
+        return res.status(401).json({ error: 'Unauthorized: Missing credentials' });
+    }
+
+    const user = await User.findOne({ where: { hashedId: userId, authCode } });
+    if (!user) {
+        return res.status(401).json({ error: 'Unauthorized: Invalid credentials' });
+    }
+
+    next();
+};