yubioath-flutter/lib/desktop/init.dart
2023-10-23 11:11:34 +02:00

411 lines
13 KiB
Dart
Executable File

/*
* Copyright (C) 2022-2023 Yubico.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import 'dart:async';
import 'dart:convert';
import 'dart:io';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:local_notifier/local_notifier.dart';
import 'package:logging/logging.dart';
import 'package:screen_retriever/screen_retriever.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:window_manager/window_manager.dart';
import 'package:yubico_authenticator/exception/initialization_exception.dart';
import '../app/app.dart';
import '../app/logging.dart';
import '../app/message.dart';
import '../app/models.dart';
import '../app/state.dart';
import '../app/views/app_failure_page.dart';
import '../app/views/main_page.dart';
import '../app/views/message_page.dart';
import '../core/state.dart';
import '../fido/state.dart';
import '../management/state.dart';
import '../oath/state.dart';
import '../piv/state.dart';
import '../version.dart';
import 'devices.dart';
import 'fido/state.dart';
import 'management/state.dart';
import 'oath/state.dart';
import 'piv/state.dart';
import 'qr_scanner.dart';
import 'rpc.dart';
import 'state.dart';
import 'systray.dart';
import 'window_manager_helper/defaults.dart';
import 'window_manager_helper/window_manager_helper.dart';
final _log = Logger('desktop.init');
const String _keyLeft = 'DESKTOP_WINDOW_LEFT';
const String _keyTop = 'DESKTOP_WINDOW_TOP';
const String _keyWidth = 'DESKTOP_WINDOW_WIDTH';
const String _keyHeight = 'DESKTOP_WINDOW_HEIGHT';
void _saveWindowBounds(WindowManagerHelper helper) async {
final bounds = await helper.getBounds();
await helper.sharedPreferences.setDouble(_keyWidth, bounds.width);
await helper.sharedPreferences.setDouble(_keyHeight, bounds.height);
await helper.sharedPreferences.setDouble(_keyLeft, bounds.left);
await helper.sharedPreferences.setDouble(_keyTop, bounds.top);
_log.debug('Saving window bounds: $bounds');
}
class _ScreenRetrieverListener extends ScreenListener {
final WindowManagerHelper _helper;
_ScreenRetrieverListener(this._helper);
@override
void onScreenEvent(String eventName) async {
_log.debug('Screen event: $eventName');
_saveWindowBounds(_helper);
}
}
class _WindowEventListener extends WindowListener {
final WindowManagerHelper _helper;
_WindowEventListener(this._helper);
@override
void onWindowResize() async {
_log.debug('Window event: onWindowResize');
_saveWindowBounds(_helper);
}
@override
void onWindowMoved() async {
_log.debug('Window event: onWindowMoved');
_saveWindowBounds(_helper);
}
@override
void onWindowClose() async {
if (Platform.isMacOS) {
await windowManager.destroy();
}
}
}
Future<Widget> initialize(List<String> argv) async {
_initLogging(argv);
await windowManager.ensureInitialized();
final prefs = await SharedPreferences.getInstance();
final windowManagerHelper = WindowManagerHelper.withPreferences(prefs);
final isHidden = _getIsHidden(argv, prefs);
final bounds = Rect.fromLTWH(
prefs.getDouble(_keyLeft) ?? WindowDefaults.bounds.left,
prefs.getDouble(_keyTop) ?? WindowDefaults.bounds.top,
prefs.getDouble(_keyWidth) ?? WindowDefaults.bounds.width,
prefs.getDouble(_keyHeight) ?? WindowDefaults.bounds.height,
);
_log.debug('Using saved window bounds (or defaults): $bounds');
unawaited(windowManager
.waitUntilReadyToShow(WindowOptions(
minimumSize: WindowDefaults.minSize,
skipTaskbar: isHidden,
))
.then((_) async {
await windowManagerHelper.setBounds(bounds);
if (isHidden) {
await windowManager.setSkipTaskbar(true);
} else {
await windowManager.show();
}
windowManager.addListener(_WindowEventListener(windowManagerHelper));
screenRetriever.addListener(_ScreenRetrieverListener(windowManagerHelper));
}));
// Either use the _HELPER_PATH environment variable, or look relative to executable.
var exe = Platform.environment['_HELPER_PATH'];
if (exe?.isEmpty ?? true) {
var relativePath = 'helper/authenticator-helper';
if (Platform.isMacOS) {
relativePath = '../Resources/$relativePath';
} else if (Platform.isWindows) {
relativePath += '.exe';
}
exe = Uri.file(Platform.resolvedExecutable)
.resolve(relativePath)
.toFilePath();
}
// Locate feature flags file
final featureFile = File(Uri.file(Platform.resolvedExecutable)
.resolve('features.json')
.toFilePath());
final rpcFuture = _initHelper(exe!);
_initLicenses();
await localNotifier.setup(
appName: 'Yubico Authenticator',
shortcutPolicy: ShortcutPolicy.ignore,
);
return ProviderScope(
overrides: [
supportedAppsProvider.overrideWith(implementedApps([
Application.oath,
Application.fido,
Application.piv,
Application.management,
])),
prefProvider.overrideWithValue(prefs),
rpcProvider.overrideWith((_) => rpcFuture),
windowStateProvider.overrideWith(
(ref) => ref.watch(desktopWindowStateProvider),
),
clipboardProvider.overrideWith(
(ref) => ref.watch(desktopClipboardProvider),
),
supportedThemesProvider.overrideWith(
(ref) => ref.watch(desktopSupportedThemesProvider),
),
attachedDevicesProvider.overrideWith(
() => DesktopDevicesNotifier(),
),
currentDeviceProvider.overrideWith(
() => DesktopCurrentDeviceNotifier(),
),
currentDeviceDataProvider.overrideWith(
(ref) => ref.watch(desktopDeviceDataProvider),
),
// OATH
oathStateProvider.overrideWithProvider(desktopOathState),
credentialListProvider
.overrideWithProvider(desktopOathCredentialListProvider),
qrScannerProvider.overrideWith(
(ref) => ref.watch(desktopQrScannerProvider),
),
// Management
managementStateProvider.overrideWithProvider(desktopManagementState),
// FIDO
fidoStateProvider.overrideWithProvider(desktopFidoState),
fingerprintProvider.overrideWithProvider(desktopFingerprintProvider),
credentialProvider.overrideWithProvider(desktopCredentialProvider),
// PIV
pivStateProvider.overrideWithProvider(desktopPivState),
pivSlotsProvider.overrideWithProvider(desktopPivSlots),
],
child: YubicoAuthenticatorApp(
page: Consumer(
builder: ((context, ref, child) {
// keep RPC log level in sync with app
ref.listen<Level>(logLevelProvider, (_, level) {
ref.read(rpcProvider).valueOrNull?.setLogLevel(level);
});
// Load feature flags, if they exist
featureFile.exists().then(
(exists) async {
if (exists) {
try {
final featureConfig =
jsonDecode(await featureFile.readAsString());
ref
.read(featureFlagProvider.notifier)
.loadConfig(featureConfig);
} catch (error) {
_log.error('Failed to parse feature flags', error);
}
}
},
);
// Initialize systray
ref.watch(systrayProvider);
// Show a loading or error page while the Helper isn't ready
return Consumer(
builder: (context, ref, child) => ref.watch(rpcProvider).when(
data: (data) => const MainPage(),
error: (error, stackTrace) => AppFailurePage(cause: error),
loading: () => _HelperWaiter(),
));
}),
),
),
);
}
Future<RpcSession> _initHelper(String exe) async {
_log.info('Starting Helper subprocess: $exe');
final rpc = RpcSession(exe);
await rpc.initialize();
_log.info('Helper process started');
await rpc.setLogLevel(Logger.root.level);
_log.info('Helper log level set');
return rpc;
}
void _initLogging(List<String> argv) {
final logFileIndex = argv.indexOf('--log-file');
File? file;
if (logFileIndex != -1) {
String path;
try {
path = argv[logFileIndex + 1];
} catch (e) {
throw InitializationException(
'USAGE: Missing argument for option --log-file');
}
file = File(path);
}
Logger.root.onRecord.listen((record) {
if (logFileIndex != -1) {
if (file != null) {
file.writeAsStringSync(
'${record.time.logFormat} [${record.loggerName}] ${record.level}: ${record.message}${Platform.lineTerminator}',
mode: FileMode.append);
if (record.error != null) {
file.writeAsStringSync('${record.error}${Platform.lineTerminator}',
mode: FileMode.append);
}
}
}
stderr.writeln(
'${record.time.logFormat} [${record.loggerName}] ${record.level}: ${record.message}');
if (record.error != null) {
stderr.writeln(record.error);
}
});
final logLevelIndex = argv.indexOf('--log-level');
if (logLevelIndex != -1) {
try {
final levelName = argv[logLevelIndex + 1];
Level level = Levels.LEVELS
.firstWhere((level) => level.name == levelName.toUpperCase());
Logger.root.level = level;
_log.info('Log level initialized from command line argument');
} catch (error) {
_log.error('Failed to set log level', error);
}
}
_log.info('Logging initialized, outputting to stderr');
}
void _initLicenses() async {
LicenseRegistry.addLicense(() async* {
final python =
await rootBundle.loadString('assets/licenses/raw/python.txt');
yield LicenseEntryWithLineBreaks(['Python'], python);
final zxingcpp =
await rootBundle.loadString('assets/licenses/raw/apache-2.0.txt');
yield LicenseEntryWithLineBreaks(['zxing-cpp'], zxingcpp);
final helper = await rootBundle.loadStructuredData<List>(
'assets/licenses/helper.json',
(value) async => jsonDecode(value),
);
for (final e in helper) {
yield LicenseEntryWithLineBreaks([e['Name']], e['LicenseText']);
}
});
}
bool _getIsHidden(List<String> argv, SharedPreferences prefs) {
if (argv.contains('--hidden') || argv.contains('--shown')) {
final isHidden = argv.contains('--hidden') && !argv.contains('--shown');
prefs.setBool(windowHidden, isHidden);
return isHidden;
} else {
return prefs.getBool(windowHidden) ?? false;
}
}
class _HelperWaiter extends ConsumerStatefulWidget {
@override
ConsumerState<_HelperWaiter> createState() => _HelperWaiterState();
}
class _HelperWaiterState extends ConsumerState<_HelperWaiter> {
bool slow = false;
late final Timer _timer;
@override
void initState() {
super.initState();
_timer = Timer(const Duration(seconds: 10), () {
setState(() {
slow = true;
});
});
}
@override
void dispose() {
_timer.cancel();
super.dispose();
}
@override
Widget build(BuildContext context) {
if (slow) {
final l10n = AppLocalizations.of(context)!;
return MessagePage(
graphic: const CircularProgressIndicator(),
message: l10n.l_helper_not_responding,
actions: [
ActionChip(
avatar: const Icon(Icons.copy),
label: Text(l10n.s_copy_log),
onPressed: () async {
_log.info('Copying log to clipboard ($version)...');
final logs = await ref.read(logLevelProvider.notifier).getLogs();
var clipboard = ref.read(clipboardProvider);
await clipboard.setText(logs.join('\n'));
if (!clipboard.platformGivesFeedback()) {
await ref.read(withContextProvider)(
(context) async {
showMessage(
context,
l10n.l_log_copied,
);
},
);
}
},
),
],
);
} else {
return const MessagePage(
delayedContent: true,
graphic: CircularProgressIndicator(),
);
}
}
}