implemented an E2E-encrypted Nextcloud push-v2 notification system with support for RSA decryption and signature verification; introduced an iOS Notification Service Extension and native AppDelegate handlers for Talk actions (inline reply and mark-as-read); replaced the legacy notification registration with a new lifecycle managing app passwords and secure keypair storage; added background message handling with tray synchronization and a test notification utility in the settings.

lib/notification/notification_controller.dart

@@ -4,44 +4,36 @@ import 'package:firebase_messaging/firebase_messaging.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 
+import '../push/push_message_handler.dart';
 import '../state/app/modules/chat/bloc/chat_bloc.dart';
 import '../widget/debug/debug_tile.dart';
 import '../widget/debug/json_viewer.dart';
 import '../widget/info_dialog.dart';
 import 'notification_tasks.dart';
 
-// `vm:entry-point` keeps this alive through AOT tree-shaking — the FCM
-// background isolate looks the class up by name from native code.
-@pragma('vm:entry-point')
+/// Bridges FCM lifecycle callbacks to the push pipeline. Background messages are
+/// handled directly by [PushMessageHandler.onBackgroundMessage]; this class
+/// covers the foreground and app-opened paths where a [BuildContext] is
+/// available.
 class NotificationController {
-  @pragma('vm:entry-point')
-  static Future<void> onBackgroundMessageHandler(RemoteMessage message) async {
-    NotificationTasks.updateBadgeCount(message);
-  }
-
   static Future<void> onForegroundMessageHandler(
     RemoteMessage message,
     BuildContext context,
   ) async {
-    final pushToken = _extractChatToken(message);
     final chatBloc = context.read<ChatBloc>();
     // hasOpenChat, not currentToken: currentToken sticks around after
     // leaveChat so didPopNext can re-claim a stacked chat.
-    final activeToken = chatBloc.state.data?.currentToken ?? '';
-    final chatIsOpen =
-        chatBloc.hasOpenChat &&
-        pushToken != null &&
-        pushToken.isNotEmpty &&
-        pushToken == activeToken;
-
-    NotificationTasks.updateBadgeCount(message);
-
-    if (chatIsOpen) {
-      // Long-poll handles the message; just dismiss any stray tray entry.
-      unawaited(NotificationTasks.clearNotificationsForChat(pushToken));
-      return;
-    }
+    final openChatToken = chatBloc.hasOpenChat
+        ? (chatBloc.state.data?.currentToken ?? '')
+        : null;
 
+    await PushMessageHandler().handle(
+      message,
+      foreground: true,
+      openChatToken: openChatToken,
+    );
+    await NotificationTasks.refreshBadge();
+    if (!context.mounted) return;
     NotificationTasks.updateProviders(context);
   }
 
@@ -54,6 +46,7 @@ class NotificationController {
       chatToken: _extractChatToken(message),
     );
     NotificationTasks.updateProviders(context);
+    unawaited(NotificationTasks.refreshBadge());
 
     DebugTile(context).run(() {
       InfoDialog.show(