add wip deregistering

`onNewEndpoint` is still not getting called for some reason (help appreciated)

.vscode/settings.json

@@ -11,6 +11,8 @@
         "muks",
         "prefs",
         "unban",
-        "unredact"
+        "unifiedpush",
+        "unredact",
+        "webpush"
     ]
 }

README.md

@@ -190,6 +190,12 @@ dart scripts/generate.dart
 > export CPATH="$(clang -v 2>&1 | grep "Selected GCC installation" | rev | cut -d' ' -f1 | rev)/include"
 > ```
 
+Build webcrypto:
+
+```sh
+flutter pub run webcrypto:setup
+```
+
 Build generated files, and watch for new changes:
 
 ```sh

android/app/build.gradle.kts

@@ -20,16 +20,21 @@ android {
     ndkVersion = flutter.ndkVersion
 
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_21
+		isCoreLibraryDesugaringEnabled = true
+		sourceCompatibility = JavaVersion.VERSION_21
         targetCompatibility = JavaVersion.VERSION_21
     }
 
     defaultConfig {
         applicationId = "nexus.federated.nexus"
-        minSdk = 29
+
+		minSdk = 29
         targetSdk = flutter.targetSdkVersion
+
         versionCode = flutter.versionCode
         versionName = flutter.versionName
+
+		multiDexEnabled = true
     }
 
     signingConfigs {
@@ -63,6 +68,11 @@ android {
     }
 }
 
+dependencies {
+    implementation("org.unifiedpush.android:embedded-fcm-distributor:3.1.0")
+    coreLibraryDesugaring("com.android.tools:desugar_jdk_libs:2.1.4")
+}
+
 kotlin {
     compilerOptions {
         jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_21

gomuks

@@ -1 +1 @@
-Subproject commit 0e06c7b74f96d3e29a8101893ca1921d13a90573
+Subproject commit 6c8b2781e02f27b64f37735cba6634784f117b88

ios/Runner/AppDelegate.swift

@@ -7,7 +7,8 @@ import UIKit
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+    UNUserNotificationCenter.current().delegate = self as? UNUserNotificationCenterDelegate
+	return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
 
   func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {

lib/controllers/client.dart

@@ -1,3 +1,4 @@
+import "dart:async";
 import "dart:ffi";
 import "dart:io";
 import "dart:isolate";
@@ -15,11 +16,13 @@ import "package:nexus/controllers/sync_status.dart";
 import "package:nexus/controllers/top_level_spaces.dart";
 import "package:nexus/helpers/extensions/gomuks_buffer.dart";
 import "package:nexus/main.dart";
+import "package:nexus/models/capabilities.dart";
 import "package:nexus/models/content/message.dart";
 import "package:nexus/models/event.dart";
 import "package:nexus/models/oauth_auth_code_response.dart";
 import "package:nexus/models/open_graph_data.dart";
 import "package:nexus/models/paginate.dart";
+import "package:nexus/models/requests/deregister_pusher.dart";
 import "package:nexus/models/requests/download_media.dart";
 import "package:nexus/models/requests/get_event.dart";
 import "package:nexus/models/requests/get_related_events.dart";
@@ -31,6 +34,7 @@ import "package:nexus/models/requests/oauth/get_auth_url.dart";
 import "package:nexus/models/requests/oauth/register_client.dart";
 import "package:nexus/models/requests/paginate.dart";
 import "package:nexus/models/requests/redact_event.dart";
+import "package:nexus/models/requests/register_pusher.dart";
 import "package:nexus/models/requests/report.dart";
 import "package:nexus/models/requests/send_event.dart";
 import "package:nexus/models/requests/send_message.dart";
@@ -154,18 +158,15 @@ class ClientController extends AsyncNotifier<int> {
     throw Exception("GomuksStart returned error code $errorCode");
   }
 
-  Future<dynamic> _sendCommand(
-    String command, [
-    Map<String, dynamic> data = const {},
-  ]) async {
+  Future<dynamic> callGomuksMethod(
+    Map<String, dynamic> data,
+    FutureOr<GomuksResponse> Function(int handle, GomuksBorrowedBuffer data)
+    callback,
+  ) async {
     final bufferPointer = data.toGomuksBufferPtr();
     final handle = await future;
     final response = await Isolate.run(
-      () => GomuksSubmitCommand(
-        handle,
-        command.toNativeUtf8().cast<Char>(),
-        bufferPointer.ref,
-      ),
+      () => callback(handle, bufferPointer.ref),
     );
 
     calloc.free(bufferPointer);
@@ -178,6 +179,24 @@ class ClientController extends AsyncNotifier<int> {
     return json;
   }
 
+  Future<Event?> handlePush(Map<String, dynamic> data) async {
+    final response = await callGomuksMethod(
+      data,
+      (handle, data) async => GomuksHandlePush(handle, data),
+    );
+
+    return response == null ? null : .fromJson(response);
+  }
+
+  Future<dynamic> _sendCommand(
+    String command, [
+    Map<String, dynamic> data = const {},
+  ]) => callGomuksMethod(
+    data,
+    (handle, data) async =>
+        GomuksSubmitCommand(handle, command.toNativeUtf8().cast<Char>(), data),
+  );
+
   Future<void> redactEvent(RedactEventRequest report) =>
       _sendCommand("redact_event", report.toJson());
 
@@ -262,13 +281,8 @@ class ClientController extends AsyncNotifier<int> {
   Future<Paginate> paginate(PaginateRequest request) async =>
       .fromJson(await _sendCommand("paginate", request.toJson()));
 
-  Future<ProfileResponse> getProfile(String userId) async {
-    try {
-      return .fromJson(await _sendCommand("get_profile", {"user_id": userId}));
-    } catch (_) {
-      return ProfileResponse(profile: .new(id: userId));
-    }
-  }
+  Future<ProfileResponse> getProfile(String userId) async =>
+      .fromJson(await _sendCommand("get_profile", {"user_id": userId}));
 
   Future<void> reportEvent(ReportRequest request) =>
       _sendCommand("report_event", request.toJson());
@@ -279,6 +293,15 @@ class ClientController extends AsyncNotifier<int> {
   Future<void> setAccountData(SetAccountDataRequest request) =>
       _sendCommand("set_account_data", request.toJson());
 
+  Future<void> registerPusher(RegisterPusherRequest request) =>
+      _sendCommand("register_homeserver_push", request.toJson());
+
+  Future<void> deregisterPusher(DeregisterPusherRequest request) =>
+      _sendCommand("register_homeserver_push", {
+        ...request.toJson(),
+        "kind": null,
+      });
+
   Future<MessageContent> uploadMedia(UploadMediaRequest request) async =>
       .fromJson(await _sendCommand("upload_media", request.toJson()));
 
@@ -316,6 +339,10 @@ class ClientController extends AsyncNotifier<int> {
   Future<SpecVersionsResponse> getSpecVersions() async =>
       .fromJson(await _sendCommand("get_versions"));
 
+  Future<Capabilities> getCapabilities() async => Capabilities.fromJson(
+    (await _sendCommand("get_capabilities"))["capabilities"],
+  );
+
   Future<Uri?> discoverHomeserver(Uri homeserver) async {
     try {
       final response = await _sendCommand("discover_homeserver", {

lib/controllers/notifications.dart

@@ -0,0 +1,120 @@
+import "dart:io";
+
+import "package:material_ui/material_ui.dart";
+import "package:nexus/main.dart";
+import "package:flutter_local_notifications/flutter_local_notifications.dart";
+// ignore: implementation_imports
+import "package:flutter_local_notifications_linux/src/model/hint.dart";
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/pages/notifications.dart";
+
+class NotificationsController
+    extends AsyncNotifier<FlutterLocalNotificationsPlugin> {
+  @override
+  Future<FlutterLocalNotificationsPlugin> build() async {
+    final notifications = FlutterLocalNotificationsPlugin();
+
+    final darwin = DarwinInitializationSettings();
+
+    await notifications.initialize(
+      settings: .new(
+        windows: .new(
+          appName: "Nexus",
+          appUserModelId: "nexus.federated.nexus",
+          guid: "dde78daf-130f-4e46-a80a-e31deeab45d7",
+        ),
+        android: .new("ic_launcher_foreground"),
+        iOS: darwin,
+        macOS: darwin,
+        linux: .new(defaultActionName: "Open"),
+      ),
+      onDidReceiveNotificationResponse: (details) {
+        if (details.payload case final eventId?) {
+          if (navigatorKey.currentContext case final context?) {
+            Navigator.of(context).push(
+              MaterialPageRoute(
+                builder: (_) => NotificationsPage(eventId: eventId),
+              ),
+            );
+          }
+        }
+      },
+    );
+
+    return notifications;
+  }
+
+  Future<bool> requestPermissions() async {
+    final controller = await future;
+
+    if (Platform.isIOS) {
+      return await controller
+              .resolvePlatformSpecificImplementation<
+                IOSFlutterLocalNotificationsPlugin
+              >()
+              ?.requestPermissions(alert: true, badge: true, sound: true) ??
+          true;
+    } else if (Platform.isMacOS) {
+      return await controller
+              .resolvePlatformSpecificImplementation<
+                MacOSFlutterLocalNotificationsPlugin
+              >()
+              ?.requestPermissions(alert: true, badge: true, sound: true) ??
+          true;
+    } else if (Platform.isAndroid) {
+      return await controller
+              .resolvePlatformSpecificImplementation<
+                AndroidFlutterLocalNotificationsPlugin
+              >()
+              ?.requestNotificationsPermission() ??
+          true;
+    }
+
+    return true;
+  }
+
+  Future<void> send({
+    required int id,
+    required String title,
+    String? body,
+    File? icon,
+    String? payload,
+  }) async {
+    final notificationDetails = NotificationDetails(
+      android: .new(
+        "messages",
+        "Messages",
+        largeIcon: icon == null ? null : FilePathAndroidBitmap(icon.path),
+      ),
+      linux: .new(
+        customHints: icon == null
+            ? null
+            : [
+                .new(
+                  name: "image-path",
+                  value: LinuxHintStringValue(icon.path),
+                ),
+              ],
+      ),
+      // TODO: See if icons can be added to iOS, macOS, and Windows notifications (#68)
+      iOS: .new(),
+      macOS: .new(),
+      windows: .new(),
+    );
+
+    final controller = await future;
+    await controller.show(
+      id: id,
+      title: title,
+      body: body,
+      notificationDetails: notificationDetails,
+      payload: payload,
+    );
+  }
+
+  static final provider =
+      AsyncNotifierProvider<
+        NotificationsController,
+        FlutterLocalNotificationsPlugin
+      >(NotificationsController.new);
+}

lib/controllers/settings_sections.dart

@@ -1,15 +1,19 @@
 import "dart:io";
 
 import "package:fast_immutable_collections/fast_immutable_collections.dart";
+import "package:flutter_hooks/flutter_hooks.dart";
+import "package:hooks_riverpod/hooks_riverpod.dart";
 import "package:material_ui/material_ui.dart";
-import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:intl/intl.dart";
 import "package:m3e_buttons/m3e_buttons.dart";
 import "package:nexus/controllers/account_data.dart";
 import "package:nexus/controllers/client.dart";
 import "package:nexus/controllers/client_state.dart";
+import "package:nexus/controllers/notifications.dart";
 import "package:nexus/controllers/settings.dart";
+import "package:nexus/controllers/unified_push.dart";
 import "package:nexus/controllers/spec_versions.dart";
+import "package:nexus/controllers/unified_push_allowed.dart";
 import "package:nexus/models/account_data.dart";
 import "package:nexus/models/settings_category.dart";
 import "package:nexus/main.dart";
@@ -95,6 +99,90 @@ class SettingsSectionsController
       if (ref.watch(ClientStateController.provider)?.isLoggedIn == true)
         "Account": .new([
           .new(title: "Profile", icon: Icons.person, settings: .new([])),
+          .new(
+            title: "Notifications",
+            icon: Icons.notifications,
+            settings: .new([
+              .new(
+                title: "Push notifications",
+                description: "Enable push notifications using Web Push",
+                builder: (title, description, icon) => HookConsumer(
+                  builder: (context, ref, _) {
+                    final loading = useState(false);
+                    final pusherRegistered = ref.watch(
+                      UnifiedPushController.provider,
+                    );
+                    final unifiedPushAllowed = ref.watch(
+                      UnifiedPushAllowedController.provider,
+                    );
+
+                    return SwitchListTile(
+                      title: Text(title),
+                      subtitle: Text(
+                        unifiedPushAllowed.maybeWhen(
+                              data: (data) => data,
+                              orElse: () => null,
+                            ) ??
+                            description,
+                      ),
+                      secondary: Icon(icon),
+                      value: pusherRegistered.maybeWhen(
+                        data: (value) => value,
+                        orElse: () => false,
+                      ),
+                      onChanged: loading.value
+                          ? null
+                          : unifiedPushAllowed.maybeWhen(
+                              data: (data) => data == null,
+                              orElse: () => false,
+                            )
+                          ? pusherRegistered.maybeWhen(
+                              data: (_) => (value) async {
+                                try {
+                                  loading.value = true;
+                                  if (value) {
+                                    if (await ref
+                                        .watch(
+                                          NotificationsController
+                                              .provider
+                                              .notifier,
+                                        )
+                                        .requestPermissions()) {
+                                      await ref
+                                          .watch(
+                                            UnifiedPushController
+                                                .provider
+                                                .notifier,
+                                          )
+                                          .register();
+                                    } else {
+                                      // TODO: Handle not granted
+                                    }
+                                  } else {
+                                    await ref
+                                        .watch(
+                                          UnifiedPushController
+                                              .provider
+                                              .notifier,
+                                        )
+                                        .deregister();
+                                  }
+                                } catch (error, stackTrace) {
+                                  showError(error, stackTrace);
+                                } finally {
+                                  loading.value = false;
+                                }
+                              },
+                              orElse: () => null,
+                            )
+                          : null,
+                    );
+                  },
+                ),
+                icon: Icons.notification_add,
+              ),
+            ]),
+          ),
           .new(
             title: "Safety",
             icon: Icons.gpp_good,
@@ -166,6 +254,8 @@ class SettingsSectionsController
                       onPressed: () async {
                         Navigator.of(context)
                             .popUntil((route) => route.isFirst);
+                        Navigator.of(context)
+                            .popUntil((route) => route.isFirst);
 
                         await WidgetsBinding.instance.endOfFrame;
 

lib/controllers/unified_push.dart

@@ -0,0 +1,150 @@
+import "dart:convert";
+import "dart:io";
+
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:intl/intl.dart";
+import "package:nexus/controllers/key.dart";
+import "package:nexus/controllers/notifications.dart";
+import "package:nexus/controllers/rooms.dart";
+import "package:nexus/main.dart";
+import "package:nexus/controllers/client.dart";
+import "package:nexus/controllers/client_state.dart";
+import "package:nexus/models/content/message.dart";
+import "package:nexus/models/content/sticker.dart";
+import "package:nexus/models/requests/register_pusher.dart";
+import "package:unifiedpush/unifiedpush.dart";
+import "package:unifiedpush_storage_shared_preferences/storage.dart";
+import "package:window_manager/window_manager.dart";
+
+class UnifiedPushController extends AsyncNotifier<bool> {
+  @override
+  Future<bool> build() async {
+    final client = ref.watch(ClientController.provider.notifier);
+    final registered = await UnifiedPush.initialize(
+      linuxOptions: .new(
+        dbusName: "nexus.federated.nexus.UnifiedPush",
+        storage: UnifiedPushStorageSharedPreferences(),
+        background: isInBackground,
+      ),
+      onNewEndpoint: (endpoint, instance) => client.registerPusher(
+        .new(
+          appDisplayName: "Nexus",
+          appId: "nexus.federated.nexus",
+          data: PusherData.webPush(
+            url: Uri.parse(endpoint.url),
+            auth: endpoint.pubKeySet!.auth,
+          ),
+          deviceDisplayName:
+              "Nexus on ${toBeginningOfSentenceCase(Platform.operatingSystem)}",
+          kind: .webPush,
+          lang: "en",
+          pushKey: endpoint.pubKeySet!.pubKey,
+        ),
+      ),
+      onMessage: (message, instance) async {
+        if (message.decrypted == false) {
+          throw Exception(
+            "Failed to decrypt notification. Try toggling off and on UnifiedPush in settings.",
+          );
+        }
+        final event = await client.handlePush(
+          json.decode(String.fromCharCodes(message.content)),
+        );
+
+        if (event == null ||
+            event.unreadType?.shouldNotify != true ||
+            (!isInBackground &&
+                await windowManager.isFocused().onError((_, _) => false) &&
+                ref.watch(KeyController.provider(KeyController.roomKey)) ==
+                    event.roomId)) {
+          return;
+        }
+
+        final room = ref.read(
+          RoomsController.provider.select((rooms) => rooms[event.roomId]),
+        );
+
+        final avatar = room?.metadata?.avatar;
+        final icon = avatar == null
+            ? null
+            : await ref
+                  .read(ClientController.provider.notifier)
+                  .downloadMedia(.new(mxc: avatar, isAvatar: true));
+
+        await ref
+            .read(NotificationsController.provider.notifier)
+            .send(
+              id: event.eventId.hashCode & 0x7fffffff,
+              title: room?.metadata?.name ?? "New Event",
+              icon: icon,
+              payload: event.eventId,
+              body: switch (event.content) {
+                MessageContent(:final body?) ||
+                StickerContent(:final body) => body,
+                _ => null,
+              },
+            );
+
+        if (isInBackground) exit(0);
+      },
+      onRegistrationFailed: (error, instance) => throw error,
+      onUnregistered: (instance) => ref.invalidateSelf(),
+    );
+
+    if (registered) {
+      // Needs to be registered every startup
+      await register(true);
+    }
+
+    return registered;
+  }
+
+  Future<void> register([bool alreadyRegistered = false]) async {
+    final clientState = ref.watch(ClientStateController.provider);
+    if (clientState?.deviceId == null) ref.invalidateSelf();
+
+    final capabilities = await ref
+        .watch(ClientController.provider.notifier)
+        .getCapabilities();
+
+    if (capabilities.webpush?.vapid == null) {
+      throw UnsupportedError(
+        "Your homeserver does not support MSC4174 (Web Push), and therefore cannot send notifications to Nexus.",
+      );
+    }
+
+    if (!alreadyRegistered &&
+        !await UnifiedPush.tryUseCurrentOrDefaultDistributor()) {
+      throw Exception("No UnifiedPush distributors found");
+    }
+
+    await UnifiedPush.register(
+      instance: clientState!.deviceId!,
+      vapid: capabilities.webpush?.vapid,
+    );
+
+    if (!alreadyRegistered) ref.invalidateSelf();
+  }
+
+  Future<void> deregister() async {
+    final clientState = ref.watch(ClientStateController.provider);
+    final key = await UnifiedPushStorageSharedPreferences().keys.get(
+      clientState!.deviceId!,
+    );
+
+    if (key == null) return;
+
+    await ref
+        .watch(ClientController.provider.notifier)
+        .deregisterPusher(
+          .new(appId: "nexus.federated.nexus", pushKey: key.split("=").first),
+        );
+
+    await UnifiedPush.unregister(clientState.deviceId!);
+    ref.invalidateSelf();
+  }
+
+  static final provider = AsyncNotifierProvider<UnifiedPushController, bool>(
+    UnifiedPushController.new,
+  );
+}

lib/controllers/unified_push_allowed.dart

@@ -0,0 +1,33 @@
+import "dart:io";
+
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/controllers/client.dart";
+import "package:unifiedpush/unifiedpush.dart";
+
+class UnifiedPushAllowedController extends AsyncNotifier<String?> {
+  @override
+  Future<String?> build() async {
+    if (!await UnifiedPush.tryUseCurrentOrDefaultDistributor()) {
+      return "No valid distributors found. Try installing ${Platform.isLinux
+          ? "KUnifiedPush"
+          : Platform.isAndroid
+          ? "FCM or NTFY"
+          : "NTFY"}.";
+    }
+
+    final capabilities = await ref
+        .watch(ClientController.provider.notifier)
+        .getCapabilities();
+
+    if (capabilities.webpush?.vapid == null) {
+      return "Your homeserver does not support MSC4174 (Web Push), and therefore cannot send notifications to Nexus.";
+    }
+
+    return null;
+  }
+
+  static final provider =
+      AsyncNotifierProvider.autoDispose<UnifiedPushAllowedController, String?>(
+        UnifiedPushAllowedController.new,
+      );
+}

lib/main.dart

@@ -8,8 +8,10 @@ import "package:media_kit/media_kit.dart";
 import "package:nexus/controllers/client.dart";
 import "package:nexus/controllers/client_state.dart";
 import "package:nexus/controllers/multi_provider.dart";
+import "package:nexus/controllers/notifications.dart";
 import "package:nexus/controllers/settings.dart";
 import "package:nexus/controllers/shared_prefs.dart";
+import "package:nexus/controllers/unified_push.dart";
 import "package:nexus/helpers/extensions/better_when.dart";
 import "package:nexus/helpers/extensions/scheme_to_theme.dart";
 import "package:nexus/helpers/font_licenses.dart";
@@ -22,6 +24,7 @@ import "package:window_manager/window_manager.dart";
 import "package:material_ui/material_ui.dart";
 
 final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
+late final bool isInBackground;
 
 final class Logger extends ProviderObserver {
   @override
@@ -45,6 +48,7 @@ void showError(Object error, [StackTrace? stackTrace]) {
       error.toString().contains("Invalid source") ||
       error.toString().contains("UTF-16") ||
       error.toString().contains("HTTP request failed") ||
+      error.toString().contains("'_nextFrame != null': is not true.") ||
       error.toString().contains("Invalid image data")) {
     return;
   }
@@ -62,7 +66,7 @@ void showError(Object error, [StackTrace? stackTrace]) {
   }
 }
 
-void main() async {
+void main(List<String> args) async {
   WidgetsFlutterBinding.ensureInitialized();
   MediaKit.ensureInitialized();
 
@@ -77,25 +81,30 @@ void main() async {
     await windowManager.setMinimumSize(Size.square(500));
   }
 
+  isInBackground = args.contains("--unifiedpush-bg");
+
   LicenseRegistry.addLicense(() => Stream.fromIterable(fontLicenses));
 
   FlutterError.onError = (FlutterErrorDetails details) =>
       showError(details.exception.toString(), details.stack);
 
-  runApp(
-    ProviderScope(
-      retry: (_, _) => null,
-      observers: [
-        // Change false to true if you want debug information on provider reloads
-        // ignore: dead_code
-        if (false && kDebugMode) Logger(),
-      ],
-      child: const App(),
-    ),
-  );
+  if (!isInBackground) {
+    runApp(
+      ProviderScope(
+        retry: (_, _) => null,
+        observers: [
+          // Change false to true if you want debug information on provider reloads
+          // ignore: dead_code
+          if (false && kDebugMode) Logger(),
+        ],
+        child: App(isInBackground),
+      ),
+    );
+  }
 }
 
-class const App({super.key}) extends StatelessWidget {
+class const App(final bool isInBackground, {super.key})
+    extends StatelessWidget {
   @override
   Widget build(BuildContext context) => DynamicColorBuilder(
     builder: (lightDynamic, darkDynamic) => Consumer(
@@ -138,6 +147,8 @@ class const App({super.key}) extends StatelessWidget {
                   IListConst([
                     SharedPrefsController.provider,
                     ClientController.provider,
+                    NotificationsController.provider,
+                    UnifiedPushController.provider,
                   ]),
                 ),
               )

lib/models/capabilities.dart

@@ -0,0 +1,25 @@
+import "package:freezed_annotation/freezed_annotation.dart";
+
+part "capabilities.freezed.dart";
+part "capabilities.g.dart";
+
+@Freezed(toJson: false, fromJson: false)
+@JsonSerializable()
+class const Capabilities({
+  @JsonKey(name: "org.matrix.msc4174.webpush") final WebPush? webpush,
+}) with _$Capabilities {
+  Map<String, Object?> toJson() => _$CapabilitiesToJson(this);
+
+  factory Capabilities.fromJson(Map<String, Object?> json) =>
+      _$CapabilitiesFromJson(json);
+}
+
+@Freezed(toJson: false, fromJson: false)
+@JsonSerializable()
+class const WebPush({required final bool enabled, final String? vapid})
+    with _$WebPush {
+  Map<String, Object?> toJson() => _$WebPushToJson(this);
+
+  factory WebPush.fromJson(Map<String, Object?> json) =>
+      _$WebPushFromJson(json);
+}

lib/models/client_state.dart

@@ -10,6 +10,7 @@ class const ClientState({
   required final bool isLoggedIn,
   required final bool isVerified,
   required final String? userId,
+  required final String? deviceId,
   required final String? homeserverUrl,
 }) with _$ClientState {
   Map<String, Object?> toJson() => _$ClientStateToJson(this);

lib/models/join_rule.dart

@@ -1,4 +1,4 @@
 import "package:freezed_annotation/freezed_annotation.dart";
 
-@JsonEnum(fieldRename: FieldRename.snake)
+@JsonEnum(fieldRename: .snake)
 enum JoinRule { public, knock, invite, private, restricted, knockRestricted }

lib/models/membership_action.dart

@@ -1,4 +1 @@
-import "package:freezed_annotation/freezed_annotation.dart";
-
-@JsonEnum()
 enum MembershipAction { ban, kick, unban, invite }

lib/models/membership_status.dart

@@ -1,4 +1 @@
-import "package:freezed_annotation/freezed_annotation.dart";
-
-@JsonEnum()
 enum MembershipStatus { leave, invite, ban, join, knock }

lib/models/profile_response.dart

@@ -9,7 +9,7 @@ part "profile_response.g.dart";
 @JsonSerializable()
 class const ProfileResponse({
   @JsonKey(fromJson: Profile.fromJson) required final Profile profile,
-  final Bio? bio,
+  required final Bio? bio,
 }) with _$ProfileResponse {
   Map<String, Object?> toJson() => _$ProfileResponseToJson(this);
 

lib/models/requests/deregister_pusher.dart

@@ -0,0 +1,13 @@
+import "package:freezed_annotation/freezed_annotation.dart";
+
+part "deregister_pusher.freezed.dart";
+part "deregister_pusher.g.dart";
+
+@Freezed(toJson: false, fromJson: false)
+@JsonSerializable()
+class const DeregisterPusherRequest({
+  required final String appId,
+  @JsonKey(name: "pushkey") required final String pushKey,
+}) with _$DeregisterPusherRequest {
+  Map<String, Object?> toJson() => _$DeregisterPusherRequestToJson(this);
+}

lib/models/requests/register_pusher.dart

@@ -0,0 +1,56 @@
+import "package:freezed_annotation/freezed_annotation.dart";
+
+part "register_pusher.freezed.dart";
+part "register_pusher.g.dart";
+
+@Freezed(toJson: false, fromJson: false)
+@JsonSerializable()
+class const RegisterPusherRequest({
+  required final String appDisplayName,
+  required final String appId,
+  final bool append = false,
+  required final PusherData data,
+  required final String deviceDisplayName,
+  required final PusherKind kind,
+  required final String lang,
+
+  /// TODO: What does this do?
+  final String? profileTag,
+
+  @JsonKey(name: "pushkey") required final String pushKey,
+}) with _$RegisterPusherRequest {
+  Map<String, Object?> toJson() => _$RegisterPusherRequestToJson(this);
+}
+
+@freezed
+sealed class PusherData with _$PusherData {
+  const factory PusherData.http({
+    required Uri url,
+    @Default(PushFormat.eventIdOnly) PushFormat format,
+  }) = HttpPusherData;
+
+  const factory PusherData.webPush({
+    required Uri url,
+    @Default(PushFormat.eventIdOnly) PushFormat format,
+
+    /// `data.auth`: RFC8291 authentication secret.
+    required String auth,
+  }) = WebPushPusherData;
+
+  factory PusherData.fromJson(Map<String, Object?> json) =>
+      _$PusherDataFromJson(json);
+}
+
+@JsonEnum(fieldRename: .snake)
+enum PushFormat {
+  @JsonValue(null)
+  all,
+  eventIdOnly,
+}
+
+enum PusherKind {
+  http,
+  email,
+  @JsonValue("org.matrix.msc4174.webpush")
+  webPush,
+}

lib/pages/notifications.dart

@@ -0,0 +1,14 @@
+import "package:material_ui/material_ui.dart";
+import "package:hooks_riverpod/hooks_riverpod.dart";
+import "package:nexus/widgets/appbar.dart";
+
+class const NotificationsPage({final String? eventId, super.key})
+    extends HookConsumerWidget {
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return Scaffold(
+      appBar: Appbar(title: Text("Notifications")),
+      body: Placeholder(),
+    );
+  }
+}

lib/widgets/appbar.dart

@@ -39,7 +39,7 @@ final class const Appbar({
                 : (_) => windowManager.startDragging(),
           ),
       child: AppBar(
-        leading: InkWell(onTap: onTap, child: leading),
+        leading: leading == null ? null : InkWell(onTap: onTap, child: leading),
         backgroundColor: backgroundColor,
         scrolledUnderElevation: scrolledUnderElevation,
         actionsPadding: const .symmetric(horizontal: 8),

lib/widgets/url_preview.dart

@@ -31,15 +31,9 @@ class const UrlPreview(final Uri link, {super.key}) extends ConsumerWidget {
                             Text(
                               preview.title!,
                               style: Theme.of(context).textTheme.titleLarge,
-                              maxLines: 3,
-                              overflow: .ellipsis,
                             ),
                           if (preview.description != null) ...[
-                            Text(
-                              preview.description!,
-                              maxLines: 20,
-                              overflow: .ellipsis,
-                            ),
+                            Text(preview.description!),
                             SizedBox(height: 4),
                           ],
                           if (preview.imageUrl != null)

lib/widgets/user_bottom_sheet.dart

@@ -200,35 +200,36 @@ final class const UserBottomSheet(
             ),
 
             if (ref.watch(
-              PowerLevelController.provider(
-                .membershipAction(
-                  action: .kick,
-                  roomId: roomId!,
-                  targetUser: userId,
-                ),
-              ),
-            ))
+                      PowerLevelController.provider(
+                        .membershipAction(
+                          action: .kick,
+                          roomId: roomId!,
+                          targetUser: userId,
+                        ),
+                      ),
+                    ) &&
+                    member.status == .join ||
+                member.status == .invite)
               Padding(
                 padding: .only(top: 4),
                 child: Row(
                   mainAxisSize: MainAxisSize.max,
                   spacing: 8,
                   children: [
-                    if (member.status == .join || member.status == .invite)
-                      M3EButton.icon(
-                        onPressed: () => showMembershipDialog(.kick),
-                        shape: .square,
-                        icon: Icon(Icons.sports_martial_arts),
-                        label: Text("Kick"),
-                        decoration: .new(
-                          backgroundColor: WidgetStatePropertyAll(
-                            theme.colorScheme.error,
-                          ),
-                          foregroundColor: WidgetStatePropertyAll(
-                            theme.colorScheme.onError,
-                          ),
+                    M3EButton.icon(
+                      onPressed: () => showMembershipDialog(.kick),
+                      shape: .square,
+                      icon: Icon(Icons.sports_martial_arts),
+                      label: Text("Kick"),
+                      decoration: .new(
+                        backgroundColor: WidgetStatePropertyAll(
+                          theme.colorScheme.error,
+                        ),
+                        foregroundColor: WidgetStatePropertyAll(
+                          theme.colorScheme.onError,
                         ),
                       ),
+                    ),
 
                     M3EButton.icon(
                       onPressed: () => showMembershipDialog(.ban),

linux/flutter/generated_plugin_registrant.cc

@@ -13,6 +13,7 @@
 #include <media_kit_video/media_kit_video_plugin.h>
 #include <screen_retriever_linux/screen_retriever_linux_plugin.h>
 #include <url_launcher_linux/url_launcher_plugin.h>
+#include <webcrypto/webcrypto_plugin.h>
 #include <window_manager/window_manager_plugin.h>
 
 void fl_register_plugins(FlPluginRegistry* registry) {
@@ -37,6 +38,9 @@ void fl_register_plugins(FlPluginRegistry* registry) {
   g_autoptr(FlPluginRegistrar) url_launcher_linux_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "UrlLauncherPlugin");
   url_launcher_plugin_register_with_registrar(url_launcher_linux_registrar);
+  g_autoptr(FlPluginRegistrar) webcrypto_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "WebcryptoPlugin");
+  webcrypto_plugin_register_with_registrar(webcrypto_registrar);
   g_autoptr(FlPluginRegistrar) window_manager_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "WindowManagerPlugin");
   window_manager_plugin_register_with_registrar(window_manager_registrar);

linux/flutter/generated_plugins.cmake

@@ -10,6 +10,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
   media_kit_video
   screen_retriever_linux
   url_launcher_linux
+  webcrypto
   window_manager
 )
 

linux/nix/devshell.nix

@@ -45,7 +45,6 @@ pkgs.mkShell {
     GRADLE_OPTS = "-Dorg.gradle.project.android.aapt2FromMavenOverride=${ANDROID_HOME}/build-tools/36.0.0/aapt2";
   }
   // lib.optionalAttrs pkgs.stdenv.isLinux {
-    CPATH = lib.makeSearchPath "include" [ pkgs.glibc.dev ];
     LD_LIBRARY_PATH = "./build/native_assets/linux:${lib.makeLibraryPath [ pkgs.zlib ]}";
   };
 }

linux/nix/pkg/gomuks.nix

@@ -17,7 +17,7 @@ buildGoModule (
 
     src = "${src}/gomuks";
 
-    vendorHash = "sha256-9CS/lAVT8gLWACLomwcEa8YNlAXvBOskPPx4zERg0wQ=";
+    vendorHash = "sha256-C03ss88QAnmZu+XxoHhc1M/261xFl8hR/pzLbU37Qe8=";
 
     buildPhase = ''
       runHook preBuild

linux/runner/my_application.cc

@@ -1,5 +1,6 @@
 #include "my_application.h"
 
+#include <cstdlib>
 #include <flutter_linux/flutter_linux.h>
 #ifdef GDK_WINDOWING_X11
 #include <gdk/gdkx.h>
@@ -72,6 +73,7 @@ static void my_application_activate(GApplication* application) {
   gdk_rgba_parse(&background_color, "#000000");
   fl_view_set_background_color(view, &background_color);
   gtk_widget_show(GTK_WIDGET(view));
+  if (std::getenv("FLUTTER_HEADLESS")) gtk_widget_hide(GTK_WIDGET(window));
   gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
 
   // Show the window when Flutter renders.

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -8,6 +8,7 @@ import Foundation
 import app_links
 import dynamic_color
 import file_selector_macos
+import flutter_local_notifications
 import media_kit_libs_macos_video
 import media_kit_video
 import package_info_plus
@@ -15,12 +16,14 @@ import screen_retriever_macos
 import shared_preferences_foundation
 import url_launcher_macos
 import wakelock_plus
+import webcrypto
 import window_manager
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   AppLinksMacosPlugin.register(with: registry.registrar(forPlugin: "AppLinksMacosPlugin"))
   DynamicColorPlugin.register(with: registry.registrar(forPlugin: "DynamicColorPlugin"))
   FileSelectorPlugin.register(with: registry.registrar(forPlugin: "FileSelectorPlugin"))
+  FlutterLocalNotificationsPlugin.register(with: registry.registrar(forPlugin: "FlutterLocalNotificationsPlugin"))
   MediaKitLibsMacosVideoPlugin.register(with: registry.registrar(forPlugin: "MediaKitLibsMacosVideoPlugin"))
   MediaKitVideoPlugin.register(with: registry.registrar(forPlugin: "MediaKitVideoPlugin"))
   FPPPackageInfoPlusPlugin.register(with: registry.registrar(forPlugin: "FPPPackageInfoPlusPlugin"))
@@ -28,5 +31,6 @@ func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   SharedPreferencesPlugin.register(with: registry.registrar(forPlugin: "SharedPreferencesPlugin"))
   UrlLauncherPlugin.register(with: registry.registrar(forPlugin: "UrlLauncherPlugin"))
   WakelockPlusMacosPlugin.register(with: registry.registrar(forPlugin: "WakelockPlusMacosPlugin"))
+  WebcryptoPlugin.register(with: registry.registrar(forPlugin: "WebcryptoPlugin"))
   WindowManagerPlugin.register(with: registry.registrar(forPlugin: "WindowManagerPlugin"))
 }

pubspec.lock

@@ -77,10 +77,10 @@ packages:
     dependency: transitive
     description:
       name: archive
-      sha256: be169cf6ac481e052c4538715d88841d567150dfe1df38aaec76461a4e7b39f2
+      sha256: ace891da0862b0e4cabbb064ee3fd87b2728b898949fdb366d83fe98342c9f19
       url: "https://pub.dev"
     source: hosted
-    version: "4.1.0"
+    version: "4.2.0"
   args:
     dependency: transitive
     description:
@@ -253,10 +253,10 @@ packages:
     dependency: transitive
     description:
       name: cross_file
-      sha256: "92c9c43c383bfa1c32079d3bc492d55d6d4318044b7b47edaff8971cbb555c51"
+      sha256: f141ea4f277af142a0356955707f6556f37b03947d39d55585981a06ca437bd6
       url: "https://pub.dev"
     source: hosted
-    version: "0.3.5+4"
+    version: "0.3.5+5"
   crypto:
     dependency: transitive
     description:
@@ -277,10 +277,10 @@ packages:
     dependency: transitive
     description:
       name: cupertino_ui
-      sha256: "7ed8ce4159d342eec4c65f4ea6eec57adaf9365404378541f38efc1da20a5b3d"
+      sha256: "2137c0d41f3b62cc4d3d2495e6c354bd6b6133cd21c6bb155736cc31dbd49a11"
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.0"
+    version: "1.0.1"
   dart_style:
     dependency: transitive
     description:
@@ -511,6 +511,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.0.0"
+  flutter_local_notifications:
+    dependency: "direct main"
+    description:
+      name: flutter_local_notifications
+      sha256: "1447ba911c60f2ba3f25dae1af151ec187162566b0f57e37771bf0b400f013ad"
+      url: "https://pub.dev"
+    source: hosted
+    version: "22.3.0"
+  flutter_local_notifications_linux:
+    dependency: "direct main"
+    description:
+      name: flutter_local_notifications_linux
+      sha256: "9ca97e63776f29ab1b955725c09999fc2c150523269db150c39274f2a43c5a8b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.0.1"
+  flutter_local_notifications_platform_interface:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_platform_interface
+      sha256: "43c3761d916c9bd3d5c7ebbc44d82f4990329840c0c5d62ad5260cc1b5d399bd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "12.2.0"
+  flutter_local_notifications_web:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_web
+      sha256: "516afaf97a2d1e67a036c6617321b00d205d72f7a67b6eccf936cd565f985878"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  flutter_local_notifications_windows:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_windows
+      sha256: "6f43bdd03b171b7a90f22647506fea33e2bb12294b7c7c7a3d690e960a382945"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.1"
   flutter_localizations:
     dependency: "direct main"
     description: flutter
@@ -891,10 +931,10 @@ packages:
     dependency: "direct main"
     description:
       name: material_ui
-      sha256: "4f3f38b9953df0a87d6bf5f21880029f77c47048487d5339410c39936be4683b"
+      sha256: "7ba1ca315d50a004791dbab290417c52a61466d56db2822fe3c5c2994903110c"
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.1"
+    version: "1.1.0"
   measure_size:
     dependency: "direct main"
     description:
@@ -1501,6 +1541,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.7.1"
+  timezone:
+    dependency: transitive
+    description:
+      name: timezone
+      sha256: "981d1020d6ef8fe1e7b3de5054e5b25579ae7c403d7734adc508ffc47668e9cb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.11.1"
   typed_data:
     dependency: transitive
     description:
@@ -1509,6 +1557,54 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.0"
+  unifiedpush:
+    dependency: "direct main"
+    description:
+      name: unifiedpush
+      sha256: "8ed9767f750a1dc6159a77e2171641d0cb825dc87682d1ce1b8618689b79f58e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.2.0"
+  unifiedpush_android:
+    dependency: transitive
+    description:
+      name: unifiedpush_android
+      sha256: a902e505e91c8e28b54b379bb27f255f66df409274a97af24d6719f12f0d13dc
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.5.0"
+  unifiedpush_linux:
+    dependency: transitive
+    description:
+      name: unifiedpush_linux
+      sha256: c062d5eedd1cec70bcd33270cc4e01ae0ff6501f33d471167c06b34a968adfeb
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  unifiedpush_platform_interface:
+    dependency: transitive
+    description:
+      name: unifiedpush_platform_interface
+      sha256: "83372bc8d794b8b12ef6993b518d7be907dcfc2191bdf6de0ece5c4445d89880"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.0"
+  unifiedpush_storage_interface:
+    dependency: transitive
+    description:
+      name: unifiedpush_storage_interface
+      sha256: b8d423a4695efc616aa21d8ab48fb5ef99d6288c68b56282b8faac1579ceabd9
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  unifiedpush_storage_shared_preferences:
+    dependency: "direct main"
+    description:
+      name: unifiedpush_storage_shared_preferences
+      sha256: eda9c52bac0058f81e0d9c65e33eedc12c5901d2e68ad47fdf68175ddf00a3b4
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   universal_platform:
     dependency: transitive
     description:
@@ -1685,6 +1781,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.3"
+  webcrypto:
+    dependency: "direct dev"
+    description:
+      name: webcrypto
+      sha256: "6b43001c4110856ff7fa5e5e65e7b2d44bec1d8b54a4d84d5fa2c7622267c5c1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.6.0"
   webkit_inspection_protocol:
     dependency: transitive
     description:
@@ -1693,6 +1797,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.2.1"
+  webpush_encryption:
+    dependency: transitive
+    description:
+      name: webpush_encryption
+      sha256: "5b83272b91acda6ae515fcd980c94f06bf413702282497c5a68f5dfc64fed27f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1"
   win32:
     dependency: transitive
     description:

pubspec.yaml

@@ -52,7 +52,7 @@ dependencies:
     dynamic_polls: 0.0.8
     flutter_hooks: 0.21.3+1
     ffi: 2.2.0
-    hooks: ^2.2.0
+    hooks: 2.2.0
     code_assets: 1.2.1
     ffigen: 21.0.0
     timeago: 3.7.1
@@ -78,7 +78,11 @@ dependencies:
     package_info_plus: 10.2.1
     app_links: 7.2.1
     file_selector: 1.1.0
-    material_ui: 1.0.1
+    material_ui: 1.1.0
+    unifiedpush: 6.2.0
+    unifiedpush_storage_shared_preferences: 1.0.0
+    flutter_local_notifications: 22.3.0
+    flutter_local_notifications_linux: 8.0.1
 
 dev_dependencies:
     build_runner: 2.16.0
@@ -87,6 +91,8 @@ dev_dependencies:
     riverpod_lint: 3.1.8
     flutter_launcher_icons: 0.14.4
     json_serializable: 6.14.1
+    # Transitive dep but needed for commands
+    webcrypto: any
 
 flutter_launcher_icons:
     image_path: assets/icon.png

windows/flutter/generated_plugin_registrant.cc

@@ -13,6 +13,7 @@
 #include <media_kit_video/media_kit_video_plugin_c_api.h>
 #include <screen_retriever_windows/screen_retriever_windows_plugin_c_api.h>
 #include <url_launcher_windows/url_launcher_windows.h>
+#include <webcrypto/webcrypto_plugin.h>
 #include <window_manager/window_manager_plugin.h>
 
 void RegisterPlugins(flutter::PluginRegistry* registry) {
@@ -30,6 +31,8 @@ void RegisterPlugins(flutter::PluginRegistry* registry) {
       registry->GetRegistrarForPlugin("ScreenRetrieverWindowsPluginCApi"));
   UrlLauncherWindowsRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("UrlLauncherWindows"));
+  WebcryptoPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("WebcryptoPlugin"));
   WindowManagerPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("WindowManagerPlugin"));
 }

windows/flutter/generated_plugins.cmake

@@ -10,10 +10,12 @@ list(APPEND FLUTTER_PLUGIN_LIST
   media_kit_video
   screen_retriever_windows
   url_launcher_windows
+  webcrypto
   window_manager
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST
+  flutter_local_notifications_windows
 )
 
 set(PLUGIN_BUNDLED_LIBRARIES)