Fix of the notification subscription

Web/app.py

@@ -12134,44 +12134,33 @@ def get_optimal_image_quality(img, target_size_kb=80):
 def health_check():
     return 'OK', 200
 
+
 @app.route('/api/push/subscribe', methods=['POST'])
 def subscribe_to_push():
-    """
-    Subscribe a user to push notifications
-    
-    Expects JSON payload:
-    {
-        'subscription': {
-            'endpoint': '...',
-            'keys': {'p256dh': '...', 'auth': '...'}
-        }
-    }
-    """
     if 'username' not in session:
-        return jsonify({'success': False, 'error': 'Not authenticated'}), 401
-    
+        return jsonify({'success': False, 'error': 'Unauthorized'}), 401
+
+    data = request.get_json(silent=True) or {}
+
+    subscription_obj = data.get('subscription') if 'subscription' in data else data
+
+    if not subscription_obj or not isinstance(subscription_obj, dict):
+        app.logger.error("Invalid subscription payload received")
+        return jsonify({'success': False, 'error': 'Invalid payload'}), 400
+
+    username = session['username']
+
     try:
-        data = request.get_json(silent=True) or {}
-        subscription = data.get('subscription')
-        
-        if not subscription or not subscription.get('endpoint'):
-            return jsonify({'success': False, 'error': 'Invalid subscription'}), 400
-        
-        username = session['username']
-        success = pn.save_push_subscription(username, subscription)
-        
+        success = pn.save_push_subscription(username, subscription_obj)
+
         if success:
-            app.logger.info(f'Push subscription saved for {encrypt_text(username)}')
-            return jsonify({
-                'success': True,
-                'message': 'Successfully subscribed to push notifications'
-            })
+            return jsonify({'success': True})
         else:
-            return jsonify({'success': False, 'error': 'Failed to save subscription'}), 500
-            
+            return jsonify({'success': False, 'error': 'Failed to save in DB'}), 400
+
     except Exception as e:
-        app.logger.error(f'Error subscribing to push: {e}')
-        return jsonify({'success': False}), 500
+        app.logger.error(f"Error in subscribe_to_push route: {e}")
+        return jsonify({'success': False, 'error': 'Internal server error'}), 500
 
 
 @app.route('/api/push/unsubscribe', methods=['POST'])