yubioath-flutter/lib/android/state.dart
2024-09-09 12:49:01 +02:00

332 lines
9.8 KiB
Dart

/*
* Copyright (C) 2022-2024 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 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:logging/logging.dart';
import 'package:shared_preferences/shared_preferences.dart';
import '../app/logging.dart';
import '../app/models.dart';
import '../app/state.dart';
import '../core/state.dart';
import 'app_methods.dart';
import 'devices.dart';
import 'models.dart';
final _log = Logger('android.state');
const _contextChannel = MethodChannel('android.state.appContext');
final androidAllowScreenshotsProvider =
StateNotifierProvider<AllowScreenshotsNotifier, bool>(
(ref) => AllowScreenshotsNotifier(),
);
class AllowScreenshotsNotifier extends StateNotifier<bool> {
AllowScreenshotsNotifier() : super(false);
void setAllowScreenshots(bool value) async {
final result =
await appMethodsChannel.invokeMethod('allowScreenshots', value);
if (mounted) {
state = result;
}
}
}
final androidClipboardProvider = Provider<AppClipboard>(
(ref) => _AndroidClipboard(ref),
);
class _AndroidClipboard extends AppClipboard {
final ProviderRef<AppClipboard> _ref;
const _AndroidClipboard(this._ref);
@override
bool platformGivesFeedback() {
return _ref.read(androidSdkVersionProvider) >= 33;
}
@override
Future<void> setText(String toClipboard, {bool isSensitive = false}) async {
await setPrimaryClip(toClipboard, isSensitive);
}
}
class NfcAdapterState extends StateNotifier<bool> {
NfcAdapterState() : super(false);
void enable(bool value) {
state = value;
}
}
enum NfcState {
disabled,
idle,
ongoing,
success,
failure,
}
class NfcStateNotifier extends StateNotifier<NfcState> {
NfcStateNotifier() : super(NfcState.disabled);
void set(int stateValue) {
var newState = switch (stateValue) {
0 => NfcState.disabled,
1 => NfcState.idle,
2 => NfcState.ongoing,
3 => NfcState.success,
4 => NfcState.failure,
_ => NfcState.disabled
};
state = newState;
}
}
final androidSectionPriority = Provider<List<Section>>((ref) => []);
final androidSdkVersionProvider = Provider<int>((ref) => -1);
final androidNfcSupportProvider = Provider<bool>((ref) => false);
final androidNfcAdapterState =
StateNotifierProvider<NfcAdapterState, bool>((ref) => NfcAdapterState());
final androidNfcState = StateNotifierProvider<NfcStateNotifier, NfcState>(
(ref) => NfcStateNotifier());
final androidSupportedThemesProvider = StateProvider<List<ThemeMode>>((ref) {
if (ref.read(androidSdkVersionProvider) < 29) {
// the user can select from light or dark theme of the app
return [ThemeMode.light, ThemeMode.dark];
} else {
// the user can also select system theme on newer Android versions
return ThemeMode.values;
}
});
class AndroidAppContextHandler {
Future<void> switchAppContext(Section section) async {
await _contextChannel.invokeMethod('setContext', {'index': section.index});
}
}
final androidAppContextHandler =
Provider<AndroidAppContextHandler>((ref) => AndroidAppContextHandler());
CurrentSectionNotifier androidCurrentSectionNotifier(Ref ref) {
final notifier = AndroidCurrentSectionNotifier(
ref.watch(androidSectionPriority), ref.watch(androidAppContextHandler));
ref.listen<AsyncValue<YubiKeyData>>(currentDeviceDataProvider, (_, data) {
notifier._notifyDeviceChanged(data.whenOrNull(data: ((data) => data)));
}, fireImmediately: true);
return notifier;
}
class AndroidCurrentSectionNotifier extends CurrentSectionNotifier {
final List<Section> _supportedSectionsByPriority;
final AndroidAppContextHandler _appContextHandler;
AndroidCurrentSectionNotifier(
this._supportedSectionsByPriority,
this._appContextHandler,
) : super(Section.home);
@override
void setCurrentSection(Section section) {
state = section;
_log.debug('Setting current section to $section');
_appContextHandler.switchAppContext(state);
}
void _notifyDeviceChanged(YubiKeyData? data) {
if (data == null) {
_log.debug('Keeping current section because key was disconnected');
return;
}
final supportedSections = _supportedSectionsByPriority.where(
(e) => e.getAvailability(data) == Availability.enabled,
);
if (supportedSections.contains(state)) {
// the key supports current section
_log.debug('Keeping current section because new key support $state');
return;
}
setCurrentSection(supportedSections.firstOrNull ?? Section.home);
}
}
class AndroidAttachedDevicesNotifier extends AttachedDevicesNotifier {
@override
List<DeviceNode> build() => ref
.watch(androidDeviceDataProvider)
.maybeWhen(data: (data) => [data.node], orElse: () => []);
}
final androidDeviceDataProvider = Provider<AsyncValue<YubiKeyData>>((ref) {
return ref.watch(androidYubikeyProvider).when(data: (d) {
if (d.name == 'restricted-nfc' ||
d.name == 'unknown-device' ||
d.name == 'no-scp11b-nfc-support') {
return AsyncError(d.name, StackTrace.current);
}
return AsyncData(d);
}, error: (Object error, StackTrace stackTrace) {
return AsyncError(error, stackTrace);
}, loading: () {
return const AsyncLoading();
});
});
class AndroidCurrentDeviceNotifier extends CurrentDeviceNotifier {
@override
DeviceNode? build() =>
ref.watch(androidYubikeyProvider).whenOrNull(data: (data) => data.node);
@override
setCurrentDevice(DeviceNode? device) {
state = device;
}
}
final androidNfcTapActionProvider =
StateNotifierProvider<NfcTapActionNotifier, NfcTapAction>(
(ref) => NfcTapActionNotifier(ref.watch(prefProvider)));
class NfcTapActionNotifier extends StateNotifier<NfcTapAction> {
static const _prefNfcOpenApp = 'prefNfcOpenApp';
static const _prefNfcCopyOtp = 'prefNfcCopyOtp';
final SharedPreferences _prefs;
NfcTapActionNotifier._(this._prefs, super._state);
factory NfcTapActionNotifier(SharedPreferences prefs) {
final launchApp = prefs.getBool(_prefNfcOpenApp) ?? true;
final copyOtp = prefs.getBool(_prefNfcCopyOtp) ?? false;
final NfcTapAction action;
if (launchApp && copyOtp) {
action = NfcTapAction.launchAndCopy;
} else if (copyOtp) {
action = NfcTapAction.copy;
} else if (launchApp) {
action = NfcTapAction.launch;
} else {
action = NfcTapAction.noAction;
}
return NfcTapActionNotifier._(prefs, action);
}
Future<void> setTapAction(NfcTapAction value) async {
if (state != value) {
state = value;
await _prefs.setBool(_prefNfcOpenApp,
value == NfcTapAction.launch || value == NfcTapAction.launchAndCopy);
await _prefs.setBool(_prefNfcCopyOtp,
value == NfcTapAction.copy || value == NfcTapAction.launchAndCopy);
}
}
}
// TODO: Get these from Android
final androidNfcSupportedKbdLayoutsProvider =
Provider<List<String>>((ref) => ['US', 'DE', 'DE-CH']);
final androidNfcKbdLayoutProvider =
StateNotifierProvider<NfcKbdLayoutNotifier, String>(
(ref) => NfcKbdLayoutNotifier(ref.watch(prefProvider)));
class NfcKbdLayoutNotifier extends StateNotifier<String> {
static const String _defaultClipKbdLayout = 'US';
static const _prefClipKbdLayout = 'prefClipKbdLayout';
final SharedPreferences _prefs;
NfcKbdLayoutNotifier(this._prefs)
: super(_prefs.getString(_prefClipKbdLayout) ?? _defaultClipKbdLayout);
Future<void> setKeyboardLayout(String value) async {
if (state != value) {
state = value;
await _prefs.setString(_prefClipKbdLayout, value);
}
}
}
final androidNfcBypassTouchProvider =
StateNotifierProvider<NfcBypassTouchNotifier, bool>(
(ref) => NfcBypassTouchNotifier(ref.watch(prefProvider)));
class NfcBypassTouchNotifier extends StateNotifier<bool> {
static const _prefNfcBypassTouch = 'prefNfcBypassTouch';
final SharedPreferences _prefs;
NfcBypassTouchNotifier(this._prefs)
: super(_prefs.getBool(_prefNfcBypassTouch) ?? false);
Future<void> setNfcBypassTouch(bool value) async {
if (state != value) {
state = value;
await _prefs.setBool(_prefNfcBypassTouch, value);
}
}
}
final androidNfcSilenceSoundsProvider =
StateNotifierProvider<NfcSilenceSoundsNotifier, bool>(
(ref) => NfcSilenceSoundsNotifier(ref.watch(prefProvider)));
class NfcSilenceSoundsNotifier extends StateNotifier<bool> {
static const _prefNfcSilenceSounds = 'prefNfcSilenceSounds';
final SharedPreferences _prefs;
NfcSilenceSoundsNotifier(this._prefs)
: super(_prefs.getBool(_prefNfcSilenceSounds) ?? false);
Future<void> setNfcSilenceSounds(bool value) async {
if (state != value) {
state = value;
await _prefs.setBool(_prefNfcSilenceSounds, value);
}
}
}
final androidUsbLaunchAppProvider =
StateNotifierProvider<UsbLaunchAppNotifier, bool>(
(ref) => UsbLaunchAppNotifier(ref.watch(prefProvider)));
class UsbLaunchAppNotifier extends StateNotifier<bool> {
static const _prefUsbOpenApp = 'prefUsbOpenApp';
final SharedPreferences _prefs;
UsbLaunchAppNotifier(this._prefs)
: super(_prefs.getBool(_prefUsbOpenApp) ?? false);
Future<void> setUsbLaunchApp(bool value) async {
if (state != value) {
state = value;
await _prefs.setBool(_prefUsbOpenApp, value);
}
}
}