Fix of hexdigest

Web/app.py

@@ -10373,21 +10373,39 @@ def my_borrowed_items():
     )
 
 
+@app.route('/api/push/vapid-key', methods=['GET'])
+def get_vapid_key():
+    """
+    Returns the VAPID public key for web push subscriptions
+    """
+    from Web.push_notifications import _get_vapid_public
+    if 'username' not in session:
+        return jsonify({'success': False, 'error': 'Not authenticated'}), 401
+
+    try:
+        if not _get_vapid_public():
+            return jsonify({'success': False, 'error': 'VAPID public key not configured'}), 500
+
+        return jsonify({
+            'success': True,
+            'publicKey': _get_vapid_public()
+        })
+    except Exception as e:
+        app.logger.error(f'Error getting VAPID key: {e}')
+        return jsonify({'success': False}), 500
+
 @app.route('/notifications')
 def notifications_view():
     """Notification center for users and admins."""
+    from Web.push_notifications import _get_vapid_public
     if 'username' not in session:
         flash('Bitte melden Sie sich an, um Benachrichtigungen zu sehen.', 'error')
         return redirect(url_for('login'))
 
     username = session['username']
-    is_admin_user = False
     current_permissions = us.get_effective_permissions(session['username'])
-        
+
-    if not current_permissions['actions'].get('can_manage_settings', False):
+    is_admin_user = current_permissions['actions'].get('can_manage_settings', False)
-        is_admin_user = True
-    else:
-        is_admin_user = False
 
     client = None
     try:
@@ -10399,15 +10417,17 @@ def notifications_view():
         admin_notifications = []
         for notif in notifications:
             is_read = username in (notif.get('ReadBy') or [])
+            created_at_val = notif.get('CreatedAt')
+
             row = {
                 'id': str(notif.get('_id')),
                 'title': notif.get('Title', 'Benachrichtigung'),
                 'message': notif.get('Message', ''),
                 'severity': notif.get('Severity', 'info'),
                 'type': notif.get('Type', ''),
-                'created_at': notif.get('CreatedAt'),
+                'created_at': created_at_val if created_at_val else None,
                 'is_read': is_read,
-                'reference': notif.get('Reference', {}) or {},
+                'reference': notif.get('Reference') or {},
             }
             if notif.get('Audience') == 'admin':
                 admin_notifications.append(row)
@@ -10421,6 +10441,7 @@ def notifications_view():
             is_admin_user=is_admin_user,
             library_module_enabled=cfg.MODULES.is_enabled('library'),
             student_cards_module_enabled=cfg.MODULES.is_enabled('student_cards'),
+            vapid_public_key=_get_vapid_public()
         )
     except Exception as exc:
         app.logger.error(f"Error loading notifications: {exc}")
@@ -10460,45 +10481,49 @@ def mark_notification_read(notification_id):
     return redirect(url_for('notifications_view'))
 
 
-@app.route('/notifications/mark_all_read', methods=['POST'])
+@app.route('/notifications/mark-all-read', methods=['POST'])
 def mark_all_notifications_read():
-    """Mark all visible notifications as read for the current user."""
     if 'username' not in session:
+        flash('Bitte melden Sie sich an.', 'error')
         return redirect(url_for('login'))
 
     username = session['username']
-    is_admin_user = False
 
-    current_permissions = us.get_effective_permissions(session['username'])
+    current_permissions = us.get_effective_permissions(username)
-        
+    is_admin_user = current_permissions['actions'].get('can_manage_settings', False)
-    if not current_permissions['actions'].get('can_manage_settings', False):
-        is_admin_user = True
-    else:
-        is_admin_user = False
-
-    query = {
-        '$or': [
-            {'Audience': 'user', 'TargetUser': username},
-        ]
-    }
-    if is_admin_user:
-        query['$or'].append({'Audience': 'admin'})
 
     client = None
     try:
         client = MongoClient(MONGODB_HOST, MONGODB_PORT)
         db = client[MONGODB_DB]
-        result = db['notifications'].update_many(
+
+        # Filter-Logik: Welche Benachrichtigungen sollen als gelesen markiert werden?
+        # Wenn Sie 'Audience' nutzen (wie in Ihrer notifications_view Route):
+        query = {}
+        if is_admin_user:
+            # Ein Admin sieht sowohl an ihn gerichtete als auch allgemeine Admin-Meldungen
+            query['$or'] = [
+                {'TargetUser': username},
+                {'Audience': 'admin'}
+            ]
+        else:
+            # Normale User sehen nur Meldungen, die an sie oder alle User gerichtet sind
+            query['$or'] = [
+                {'TargetUser': username},
+                {'Audience': 'user'}
+            ]
+
+        # WICHTIG: Fügt den Benutzernamen per $addToSet in das ReadBy-Array ein.
+        # $addToSet verhindert, dass der Name doppelt eingetragen wird, falls er schon drinsteht.
+        db['notifications'].update_many(
             query,
-            {
+            {'$addToSet': {'ReadBy': username}}
-                '$addToSet': {'ReadBy': username},
-                '$set': {'UpdatedAt': datetime.datetime.now()}
-            }
         )
-        if result.modified_count > 0:
+
-            _bump_notification_version(f'user:{username}')
+        flash('Alle Benachrichtigungen wurden als gelesen markiert.', 'success')
     except Exception as exc:
-        app.logger.warning(f"Could not mark all notifications as read for {encrypt_text(username)}: {exc}")
+        app.logger.error(f"Error marking all notifications as read: {exc}")
+        flash('Fehler beim Aktualisieren der Benachrichtigungen.', 'error')
     finally:
         if client:
             client.close()
@@ -12109,44 +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() or {}
+        success = pn.save_push_subscription(username, subscription_obj)
-        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)
-        
         if success:
-            app.logger.info(f'Push subscription saved for {encrypt_text(username)}')
+            return jsonify({'success': True})
-            return jsonify({
-                'success': True,
-                'message': 'Successfully subscribed to push notifications'
-            })
         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}')
+        app.logger.error(f"Error in subscribe_to_push route: {e}")
-        return jsonify({'success': False}), 500
+        return jsonify({'success': False, 'error': 'Internal server error'}), 500
 
 
 @app.route('/api/push/unsubscribe', methods=['POST'])
@@ -12163,7 +12177,7 @@ def unsubscribe_from_push():
         return jsonify({'success': False, 'error': 'Not authenticated'}), 401
     
     try:
-        data = request.get_json() or {}
+        data = request.get_json(silent=True) or {}
         endpoint = data.get('endpoint')
         
         if not endpoint:
@@ -12219,32 +12233,6 @@ def get_push_subscriptions():
         app.logger.error(f'Error getting push subscriptions: {e}')
         return jsonify({'success': False}), 500
 
-
-@app.route('/api/push/vapid-key', methods=['GET'])
-def get_vapid_key():
-    """
-    Get the VAPID public key for push notifications
-    Used by the service worker to communicate with push service
-    """
-    try:
-        vapid_key = pn.VAPID_PUBLIC_KEY
-        if not vapid_key:
-            app.logger.warning('VAPID_PUBLIC_KEY not configured')
-            return jsonify({
-                'success': False,
-                'error': 'Push notifications not configured on server'
-            }), 501
-        
-        return jsonify({
-            'success': True,
-            'vapid_key': vapid_key
-        })
-        
-    except Exception as e:
-        app.logger.error(f'Error getting VAPID key: {e}')
-        return jsonify({'success': False}), 500
-
-
 @app.route('/api/push/test', methods=['POST'])
 def test_push_notification():
     """
@@ -12257,7 +12245,7 @@ def test_push_notification():
         return jsonify({'success': False, 'error': 'Admin access required'}), 403
     
     try:
-        data = request.get_json() or {}
+        data = request.get_json(silent=True) or {}
         target_user = data.get('target_user', session['username'])
         
         sent = pn.send_push_notification(

Web/push_notifications.py

@@ -40,14 +40,18 @@ try:
     else:
         vapid = Vapid.from_file(VAPID_PRIVATE_PEM)
 
-    # Extract public key in standard uncompressed point format encoded in URL-safe base64
     raw_pub = vapid.public_key.public_bytes(
         serialization.Encoding.X962,
         serialization.PublicFormat.UncompressedPoint
     )
 
-    VAPID_PUBLIC_KEY = b64urlencode(raw_pub).decode('utf-8')
+    encoded_pub = b64urlencode(raw_pub)
-    VAPID_PRIVATE_KEY = VAPID_PRIVATE_PEM  # pywebpush accepts the file path to the private PEM
+    if isinstance(encoded_pub, bytes):
+        VAPID_PUBLIC_KEY = encoded_pub.decode('utf-8')
+    else:
+        VAPID_PUBLIC_KEY = encoded_pub
+
+    VAPID_PRIVATE_KEY = VAPID_PRIVATE_PEM
 
 except Exception as e:
     logger.error(f'Could not load or generate VAPID keys: {e}')
@@ -60,6 +64,9 @@ VAPID_SUBJECT = os.getenv('VAPID_SUBJECT', 'mailto:support@invario-software.de')
 FCM_API_KEY = os.getenv('FCM_API_KEY', '')
 
 
+def _get_vapid_public():
+    return VAPID_PUBLIC_KEY
+
 def _get_username_hash(username):
     """Generates a deterministic hash for database lookups."""
     if not username:
@@ -115,29 +122,33 @@ def get_user_subscriptions(username):
 
 
 def save_push_subscription(username, subscription_obj):
-    """
+    import traceback  # Hilft uns, Fehler genau zu sehen
-    Save a new push subscription for a user with field-level encryption.
-    """
     try:
+        print("--- DEBUG PUSH PAYLOAD ---")
+        print(subscription_obj)
+
         endpoint = subscription_obj.get('endpoint')
-        if not endpoint:
+        keys = subscription_obj.get('keys', {})
-            logger.warning('Invalid subscription object: missing endpoint')
+
+        if not endpoint or not keys.get('p256dh') or not keys.get('auth'):
+            print(
+                f"DEBUG FEHLER: Keys fehlen! Endpoint: {bool(endpoint)}, p256dh: {bool(keys.get('p256dh'))}, auth: {bool(keys.get('auth'))}")
             return False
-        
+
         client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
         db = client[cfg.MONGODB_DB]
         subs_col = get_push_subscriptions_collection(db)
-        
+
         # Create unique hash of subscription using plaintext data to avoid duplicates
         sub_hash = hashlib.shake_256(
             f"{username}:{endpoint}".encode('utf-8')
-        ).hexdigest()
+        ).hexdigest(32)
-        
+
         # Check if subscription already exists by Hash
         existing = subs_col.find_one({
             'SubscriptionHash': sub_hash
         })
-        
+
         if existing:
             subs_col.update_one(
                 {'_id': existing['_id']},
@@ -149,10 +160,10 @@ def save_push_subscription(username, subscription_obj):
             logger.info('Updated existing push subscription')
             client.close()
             return True
-        
+
         # Format keys as JSON string for your encrypt_text module
         keys_str = json.dumps(subscription_obj.get('keys', {}))
-        
+
         # Save new subscription, encrypting sensitive fields
         subscription_doc = {
             'UsernameHash': _get_username_hash(username),
@@ -165,39 +176,37 @@ def save_push_subscription(username, subscription_obj):
             'LastUsed': datetime.datetime.now(),
             'UserAgent': subscription_obj.get('userAgent', ''),
         }
-        
+
         subs_col.insert_one(subscription_doc)
         logger.info('Saved new encrypted push subscription')
         client.close()
         return True
-        
+
+
     except Exception as e:
-        logger.error(f'Error saving push subscription: {e}')
+        print(f"DEBUG ABSTURZ in save_push_subscription: {e}")
+        traceback.print_exc()
         return False
 
 
 def remove_push_subscription(username, endpoint):
-    """
-    Remove a push subscription by making it inactive.
-    """
     try:
         client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
         db = client[cfg.MONGODB_DB]
         subs_col = get_push_subscriptions_collection(db)
-        
+
-        # Recreate the deterministic hash to find the specific subscription
         sub_hash = hashlib.shake_256(
             f"{username}:{endpoint}".encode('utf-8')
-        ).hexdigest()
+        ).hexdigest(32)
-        
+
         result = subs_col.update_one(
             {'SubscriptionHash': sub_hash},
             {'$set': {'IsActive': False}}
         )
-        
+
         client.close()
-        return result.modified_count > 0
+        return result.matched_count > 0
-        
+
     except Exception as e:
         logger.error(f'Error removing push subscription: {e}')
         return False
@@ -305,8 +314,8 @@ def _send_fcm_notification(subscription, payload):
 
 def _send_web_push_notification(subscription, payload):
     try:
-        from pywebpush import webpush
+        from pywebpush import webpush, WebPushException
-        
+
         webpush(
             subscription_info={
                 'endpoint': subscription['Endpoint'],
@@ -316,18 +325,25 @@ def _send_web_push_notification(subscription, payload):
             vapid_private_key=VAPID_PRIVATE_KEY,
             vapid_claims={'sub': VAPID_SUBJECT},
             timeout=10,
-            ttl=3600 
+            ttl=3600
         )
-        
         return True
-        
+
     except ImportError:
         logger.warning('pywebpush not installed. pip install pywebpush')
         return False
-    except Exception as e:
+    # HÄRTUNG: Spezifische WebPush-Fehler abfangen
-        logger.error(f'Web push error: {e}')
+    except WebPushException as ex:
-        return False
+        # HTTP 404 (Not Found) oder 410 (Gone) bedeuten: Abo existiert nicht mehr
+        if ex.response is not None and ex.response.status_code in [404, 410]:
+            logger.info(f"Subscription expired or revoked (Code {ex.response.status_code}). Marking inactive.")
+            return False  # False signalisiert der übergeordneten Funktion, das Abo zu deaktivieren
 
+        logger.error(f'Web push failed with code {ex.response.status_code if ex.response else "Unknown"}: {ex}')
+        return False
+    except Exception as e:
+        logger.error(f'Unexpected Web push error: {e}')
+        return False
 
 def _mark_subscription_inactive(subscription_id):
     try:

Web/requirements.txt

@@ -16,4 +16,5 @@ openpyxl
 cryptography>=42.0.0
 pywebpush
 py-vapid>=1.9.0
-beautifulsoup4
+beautifulsoup4
+pywebpush

Web/static/js/push-notifications.js

@@ -25,7 +25,7 @@ class PushNotificationManager {
      * Initialize push notification system
      * Must be called after page load
      */
-    async init() {
+    async init(providedKey = null) {
         if (!this.isSupported) {
             console.log('Push notifications not supported in this browser');
             return false;
@@ -49,11 +49,18 @@ class PushNotificationManager {
                 }
             }
 
-            // Fetch VAPID public key from server
+            // Wenn der Key direkt aus dem Template übergeben wurde, nutze diesen (spart einen Request)
+            if (providedKey) {
+                this.vapidKey = providedKey;
+                return true;
+            }
+
+            // Ansonsten: Fetch VAPID public key from server
             const keyResponse = await fetch('/api/push/vapid-key');
             if (keyResponse.ok) {
                 const keyData = await keyResponse.json();
-                this.vapidKey = keyData.vapid_key;
+                // WICHTIG: Muss exakt mit dem Python-JSON-Key übereinstimmen!
+                this.vapidKey = keyData.publicKey;
             } else {
                 console.warn('Failed to fetch VAPID key');
                 return false;
@@ -154,20 +161,22 @@ class PushNotificationManager {
         try {
             const subscription = await this.serviceWorkerRegistration.pushManager.getSubscription();
             if (!subscription) {
-                console.warn('No active push subscription');
-                return false;
-            }
-
-            // Remove subscription on server
-            const success = await this.removeSubscriptionFromServer(subscription);
-
-            // Unsubscribe from push service
-            if (success) {
-                await subscription.unsubscribe();
                 return true;
             }
 
-            return false;
+            // Best-Effort: Server benachrichtigen (Eigener try/catch Block!)
+            try {
+                await this.removeSubscriptionFromServer(subscription);
+            } catch (serverError) {
+                // Fehler vom Server ignorieren wir absichtlich.
+                // Das Skript läuft weiter, statt hier abzubrechen!
+                console.warn('Server-Abmeldung fehlgeschlagen, lösche lokal trotzdem:', serverError);
+            }
+
+            // WICHTIG: Das hier wird jetzt garantiert ausgeführt
+            await subscription.unsubscribe();
+            return true;
+
         } catch (error) {
             console.error('Failed to unsubscribe from push notifications:', error);
             return false;
@@ -324,7 +333,7 @@ const pushNotificationManager = new PushNotificationManager();
 /**
  * Show notification subscription UI (typically in settings)
  */
-function showPushNotificationSettings() {
+function showPushNotificationSettings(vapidPublicKey) {
     const container = document.getElementById('push-notification-settings');
     if (!container) return;
 
@@ -350,9 +359,9 @@ function showPushNotificationSettings() {
 
     container.innerHTML = html;
 
-    // Set up button handler
+    // Set up button handler and pass the VAPID public key to init()
     const toggleBtn = document.getElementById('toggle-push-btn');
-    pushNotificationManager.init().then(() => {
+    pushNotificationManager.init(vapidPublicKey).then(() => {
         updatePushStatus();
     });
 

Web/templates/notifications.html

@@ -89,7 +89,7 @@
 <script>
 document.addEventListener('DOMContentLoaded', function() {
     if (typeof showPushNotificationSettings === 'function') {
-        showPushNotificationSettings();
+        showPushNotificationSettings('{{ vapid_public_key }}');
     }
 });
 </script>

requirements.txt

@@ -16,4 +16,5 @@ openpyxl
 cryptography>=42.0.0
 pywebpush
 py-vapid>=1.9.0
-beautifulsoup4
+beautifulsoup4
+pywebpush