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feat: Matrix login flow with auth guard and client provider

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This commit is contained in:
Bernd Steckmeister
2026-04-19 19:56:12 +02:00
parent 062b8b6a94
commit 883d24479b
5 changed files with 307 additions and 3 deletions
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lib/core/matrix_client.dart
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import 'dart:io';
import 'package:flutter/foundation.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_secure_storage/flutter_secure_storage.dart';
import 'package:matrix/matrix.dart';
import 'package:path/path.dart' as p;
import 'package:path_provider/path_provider.dart';
import 'package:sqflite_common_ffi/sqflite_ffi.dart';
final matrixClientProvider = FutureProvider<Client>((ref) async {
if (!kIsWeb && (Platform.isWindows || Platform.isLinux)) {
sqfliteFfiInit();
databaseFactory = databaseFactoryFfi;
}
final appDir = await getApplicationSupportDirectory();
final dbPath = p.join(appDir.path, 'pyramid.sqlite');
final db = await databaseFactoryFfi.openDatabase(dbPath);
final sdkDb = await MatrixSdkDatabase.init('pyramid', database: db);
final client = Client('Pyramid', database: sdkDb);
await client.init();
return client;
});
final secureStorageProvider = Provider<FlutterSecureStorage>((ref) {
return const FlutterSecureStorage();
});
lib/core/router.dart
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@@ -1,14 +1,28 @@
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:go_router/go_router.dart';
import 'package:pyramid/layout/shell_page.dart';
import 'package:pyramid/features/rooms/rooms_page.dart';
import 'package:pyramid/features/auth/login_notifier.dart';
import 'package:pyramid/features/auth/login_page.dart';
import 'package:pyramid/features/chat/chat_page.dart';
import 'package:pyramid/features/rooms/rooms_page.dart';
import 'package:pyramid/features/settings/settings_page.dart';
import 'package:pyramid/layout/shell_page.dart';
final routerProvider = Provider<GoRouter>((ref) {
final isLoggedIn = ref.watch(isLoggedInProvider);
return GoRouter(
initialLocation: '/rooms',
redirect: (context, state) {
final loggingIn = state.matchedLocation == '/login';
if (!isLoggedIn && !loggingIn) return '/login';
if (isLoggedIn && loggingIn) return '/rooms';
return null;
},
routes: [
GoRoute(
path: '/login',
builder: (context, state) => const LoginPage(),
),
ShellRoute(
builder: (context, state, child) => ShellPage(child: child),
routes: [
lib/features/auth/login_notifier.dart
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import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:matrix/matrix.dart';
import 'package:pyramid/core/matrix_client.dart';
enum LoginStatus { idle, loading, error }
class LoginState {
final LoginStatus status;
final String? errorMessage;
const LoginState({this.status = LoginStatus.idle, this.errorMessage});
LoginState copyWith({LoginStatus? status, String? errorMessage}) =>
LoginState(
status: status ?? this.status,
errorMessage: errorMessage,
);
}
class LoginNotifier extends StateNotifier<LoginState> {
final Ref _ref;
LoginNotifier(this._ref) : super(const LoginState());
Future<void> login({
required String userId,
required String password,
String? deviceName,
}) async {
state = state.copyWith(status: LoginStatus.loading, errorMessage: null);
final clientAsync = _ref.read(matrixClientProvider);
final client = clientAsync.valueOrNull;
if (client == null) {
state = state.copyWith(
status: LoginStatus.error,
errorMessage: 'Client nicht initialisiert',
);
return;
}
try {
// Auto-discover homeserver from MXID
if (userId.isValidMatrixId) {
final domain = Uri.https(userId.domain!, '');
try {
await client.checkHomeserver(domain);
} catch (_) {
client.homeserver = domain;
}
}
await client.login(
LoginType.mLoginPassword,
identifier: AuthenticationUserIdentifier(user: userId),
password: password,
initialDeviceDisplayName: deviceName ?? 'Pyramid',
);
state = state.copyWith(status: LoginStatus.idle);
} on MatrixException catch (e) {
state = state.copyWith(
status: LoginStatus.error,
errorMessage: e.errorMessage,
);
} catch (e) {
state = state.copyWith(
status: LoginStatus.error,
errorMessage: e.toString(),
);
}
}
}
final loginNotifierProvider =
StateNotifierProvider<LoginNotifier, LoginState>((ref) {
return LoginNotifier(ref);
});
final isLoggedInProvider = Provider<bool>((ref) {
final client = ref.watch(matrixClientProvider).valueOrNull;
return client?.isLogged() ?? false;
});
lib/features/auth/login_page.dart
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import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:go_router/go_router.dart';
import 'package:pyramid/features/auth/login_notifier.dart';
class LoginPage extends ConsumerStatefulWidget {
const LoginPage({super.key});
@override
ConsumerState<LoginPage> createState() => _LoginPageState();
}
class _LoginPageState extends ConsumerState<LoginPage> {
final _formKey = GlobalKey<FormState>();
final _userIdCtrl = TextEditingController();
final _passwordCtrl = TextEditingController();
bool _obscurePassword = true;
@override
void dispose() {
_userIdCtrl.dispose();
_passwordCtrl.dispose();
super.dispose();
}
Future<void> _submit() async {
if (!_formKey.currentState!.validate()) return;
await ref.read(loginNotifierProvider.notifier).login(
userId: _userIdCtrl.text.trim(),
password: _passwordCtrl.text,
);
final state = ref.read(loginNotifierProvider);
if (state.status == LoginStatus.idle && mounted) {
context.go('/rooms');
}
}
@override
Widget build(BuildContext context) {
final state = ref.watch(loginNotifierProvider);
final loading = state.status == LoginStatus.loading;
return Scaffold(
body: Center(
child: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 400),
child: Padding(
padding: const EdgeInsets.all(24),
child: Form(
key: _formKey,
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
const _PyramidLogo(),
const SizedBox(height: 32),
TextFormField(
controller: _userIdCtrl,
decoration: const InputDecoration(
labelText: 'Matrix ID',
hintText: '@name:server.de',
prefixIcon: Icon(Icons.person_outline),
border: OutlineInputBorder(),
),
keyboardType: TextInputType.emailAddress,
autofillHints: const [AutofillHints.username],
validator: (v) {
if (v == null || v.trim().isEmpty) {
return 'Matrix ID eingeben';
}
if (!v.trim().startsWith('@') ||
!v.trim().contains(':')) {
return 'Format: @name:server.de';
}
return null;
},
),
const SizedBox(height: 16),
TextFormField(
controller: _passwordCtrl,
obscureText: _obscurePassword,
decoration: InputDecoration(
labelText: 'Passwort',
prefixIcon: const Icon(Icons.lock_outline),
border: const OutlineInputBorder(),
suffixIcon: IconButton(
icon: Icon(_obscurePassword
? Icons.visibility_outlined
: Icons.visibility_off_outlined),
onPressed: () => setState(
() => _obscurePassword = !_obscurePassword),
),
),
autofillHints: const [AutofillHints.password],
validator: (v) =>
(v == null || v.isEmpty) ? 'Passwort eingeben' : null,
onFieldSubmitted: (_) => _submit(),
),
if (state.errorMessage != null) ...[
const SizedBox(height: 12),
Text(
state.errorMessage!,
style: TextStyle(
color: Theme.of(context).colorScheme.error),
textAlign: TextAlign.center,
),
],
const SizedBox(height: 24),
FilledButton(
onPressed: loading ? null : _submit,
child: loading
? const SizedBox(
height: 20,
width: 20,
child: CircularProgressIndicator(strokeWidth: 2),
)
: const Text('Anmelden'),
),
],
),
),
),
),
),
);
}
}
class _PyramidLogo extends StatelessWidget {
const _PyramidLogo();
@override
Widget build(BuildContext context) {
return Column(
children: [
Icon(
Icons.change_history_rounded,
size: 72,
color: Theme.of(context).colorScheme.primary,
),
const SizedBox(height: 8),
Text(
'Pyramid',
style: Theme.of(context)
.textTheme
.headlineMedium
?.copyWith(fontWeight: FontWeight.bold),
),
],
);
}
}
lib/main.dart
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@@ -1,8 +1,32 @@
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:pyramid/core/app.dart';
import 'package:pyramid/core/matrix_client.dart';
void main() async {
WidgetsFlutterBinding.ensureInitialized();
runApp(const ProviderScope(child: PyramidApp()));
runApp(const ProviderScope(child: PyramidBootstrap()));
}
class PyramidBootstrap extends ConsumerWidget {
const PyramidBootstrap({super.key});
@override
Widget build(BuildContext context, WidgetRef ref) {
final clientAsync = ref.watch(matrixClientProvider);
return clientAsync.when(
loading: () => const MaterialApp(
home: Scaffold(
body: Center(child: CircularProgressIndicator()),
),
),
error: (e, _) => MaterialApp(
home: Scaffold(
body: Center(child: Text('Fehler: $e')),
),
),
data: (_) => const PyramidApp(),
);
}
}