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.

2026-07-04 22:50:18 +02:00
parent 32f7c311bc
commit 74a2ddd17f
56 changed files with 2987 additions and 285 deletions
@@ -0,0 +1,72 @@
+import 'package:localstore/localstore.dart';
+
+/// A rendered notification's bookkeeping, keyed by the Nextcloud notification
+/// id (`nid`). Lets a later delete-push (which only carries the `nid`) find and
+/// cancel the exact tray notification that was shown.
+class NidEntry {
+  final int nid;
+  final int notificationId;
+  final String tag;
+  final String? chatToken;
+
+  const NidEntry({
+    required this.nid,
+    required this.notificationId,
+    required this.tag,
+    this.chatToken,
+  });
+
+  Map<String, dynamic> toJson() => {
+    'nid': nid,
+    'notificationId': notificationId,
+    'tag': tag,
+    if (chatToken != null) 'chatToken': chatToken,
+  };
+
+  factory NidEntry.fromJson(Map<String, dynamic> json) => NidEntry(
+    nid: (json['nid'] as num).toInt(),
+    notificationId: (json['notificationId'] as num).toInt(),
+    tag: json['tag'] as String,
+    chatToken: json['chatToken'] as String?,
+  );
+}
+
+/// Persists the `nid → tray notification` mapping via [Localstore] so both the
+/// foreground and background isolates can resolve delete-pushes.
+class NidStore {
+  static const _collection = 'push_nids';
+
+  final Localstore _db;
+
+  NidStore({Localstore? db}) : _db = db ?? Localstore.instance;
+
+  Future<void> put(NidEntry entry) =>
+      _db.collection(_collection).doc('${entry.nid}').set(entry.toJson());
+
+  Future<NidEntry?> get(int nid) async {
+    final data = await _db.collection(_collection).doc('$nid').get();
+    if (data == null) return null;
+    return NidEntry.fromJson(data);
+  }
+
+  Future<void> delete(int nid) =>
+      _db.collection(_collection).doc('$nid').delete();
+
+  Future<List<NidEntry>> all() async {
+    final docs = await _db.collection(_collection).get();
+    if (docs == null) return const [];
+    return docs.values
+        .map((e) => NidEntry.fromJson(e as Map<String, dynamic>))
+        .toList();
+  }
+
+  Future<void> clear() async {
+    final docs = await _db.collection(_collection).get();
+    if (docs == null) return;
+    for (final id in docs.keys) {
+      // Localstore keys are the full document paths (/push_nids/<nid>).
+      final nid = int.tryParse(id.split('/').last);
+      if (nid != null) await delete(nid);
+    }
+  }
+}