yubioath-flutter/lib/oath/views/oath_screen.dart

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import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../app/message.dart';
import '../../app/models.dart';
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import '../../app/views/app_failure_page.dart';
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import '../../app/views/app_loading_screen.dart';
import '../../app/views/app_page.dart';
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import '../../app/views/graphics.dart';
import '../../app/views/message_page.dart';
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import '../../theme.dart';
import '../models.dart';
import '../state.dart';
import 'account_list.dart';
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import 'add_account_page.dart';
import 'manage_password_dialog.dart';
import 'reset_dialog.dart';
class OathScreen extends ConsumerWidget {
final DevicePath devicePath;
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const OathScreen(this.devicePath, {super.key});
@override
Widget build(BuildContext context, WidgetRef ref) {
return ref.watch(oathStateProvider(devicePath)).when(
loading: () => AppPage(
title: const Text('Authenticator'),
centered: true,
child: const AppLoadingScreen(),
),
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error: (error, _) => AppFailurePage(
title: const Text('Authenticator'),
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cause: error,
),
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data: (oathState) => oathState.locked
? _LockedView(devicePath, oathState)
: _UnlockedView(devicePath, oathState),
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);
}
}
class _LockedView extends ConsumerWidget {
final DevicePath devicePath;
final OathState oathState;
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const _LockedView(this.devicePath, this.oathState);
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@override
Widget build(BuildContext context, WidgetRef ref) => AppPage(
title: const Text('Authenticator'),
actions: [
OutlinedButton.icon(
label: const Text('Options'),
icon: const Icon(Icons.tune),
onPressed: () {
showBottomMenu(context, [
MenuAction(
text: 'Manage password',
icon: const Icon(Icons.password),
action: (context) {
showDialog(
context: context,
builder: (context) =>
ManagePasswordDialog(devicePath, oathState),
);
},
),
MenuAction(
text: 'Reset OATH',
icon: const Icon(Icons.delete),
action: (context) {
showDialog(
context: context,
builder: (context) => ResetDialog(devicePath),
);
},
),
]);
},
),
],
child: Column(
children: [
_UnlockForm(
devicePath,
keystore: oathState.keystore,
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),
],
),
);
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}
class _UnlockedView extends ConsumerWidget {
final DevicePath devicePath;
final OathState oathState;
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const _UnlockedView(this.devicePath, this.oathState);
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@override
Widget build(BuildContext context, WidgetRef ref) {
final isEmpty = ref.watch(credentialListProvider(devicePath)
.select((value) => value?.isEmpty == true));
if (isEmpty) {
return MessagePage(
title: const Text('Authenticator'),
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graphic: noAccounts,
header: 'No accounts',
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actions: _buildActions(context, true),
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);
}
return AppPage(
title: Focus(
canRequestFocus: false,
onKeyEvent: (node, event) {
if (event.logicalKey == LogicalKeyboardKey.arrowDown) {
node.focusInDirection(TraversalDirection.down);
return KeyEventResult.handled;
}
return KeyEventResult.ignored;
},
child: Builder(builder: (context) {
return TextFormField(
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key: const Key('search_accounts'),
initialValue: ref.read(searchProvider),
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style: Theme.of(context).textTheme.titleSmall,
decoration: const InputDecoration(
hintText: 'Search accounts',
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isDense: true,
prefixIcon: Icon(Icons.search_outlined),
prefixIconConstraints: BoxConstraints(
minHeight: 30,
minWidth: 30,
),
border: InputBorder.none,
),
onChanged: (value) {
ref.read(searchProvider.notifier).setFilter(value);
},
textInputAction: TextInputAction.next,
onFieldSubmitted: (value) {
Focus.of(context).focusInDirection(TraversalDirection.down);
},
);
}),
),
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actions: _buildActions(context, false),
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child: AccountList(devicePath, oathState),
);
}
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List<Widget> _buildActions(BuildContext context, bool isEmpty) {
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return [
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OutlinedButton.icon(
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style: isEmpty ? AppTheme.primaryOutlinedButtonStyle(context) : null,
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label: const Text('Add account'),
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icon: const Icon(Icons.person_add_alt_1),
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onPressed: () {
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showDialog(
context: context,
builder: (context) => OathAddAccountPage(
devicePath,
oathState,
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openQrScanner: Platform.isAndroid,
),
);
},
),
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OutlinedButton.icon(
label: const Text('Options'),
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icon: const Icon(Icons.tune),
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onPressed: () {
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showBottomMenu(context, [
MenuAction(
text: oathState.hasKey ? 'Manage password' : 'Set password',
icon: const Icon(Icons.password),
action: (context) {
showDialog(
context: context,
builder: (context) =>
ManagePasswordDialog(devicePath, oathState),
);
},
),
MenuAction(
text: 'Reset OATH',
icon: const Icon(Icons.delete),
action: (context) {
showDialog(
context: context,
builder: (context) => ResetDialog(devicePath),
);
},
),
]);
},
),
];
}
}
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class _UnlockForm extends ConsumerStatefulWidget {
final DevicePath _devicePath;
final KeystoreState keystore;
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const _UnlockForm(this._devicePath, {required this.keystore});
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@override
ConsumerState<_UnlockForm> createState() => _UnlockFormState();
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}
class _UnlockFormState extends ConsumerState<_UnlockForm> {
final _passwordController = TextEditingController();
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bool _remember = false;
bool _passwordIsWrong = false;
bool _isObscure = true;
void _submit() async {
setState(() {
_passwordIsWrong = false;
_isObscure = false;
});
final result = await ref
.read(oathStateProvider(widget._devicePath).notifier)
.unlock(_passwordController.text, remember: _remember);
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if (!mounted) return;
if (!result.first) {
setState(() {
_passwordIsWrong = true;
_passwordController.clear();
});
} else if (_remember && !result.second) {
showMessage(context, 'Failed to remember password');
}
}
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@override
Widget build(BuildContext context) {
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final keystoreFailed = widget.keystore == KeystoreState.failed;
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return Column(
children: [
Padding(
padding: const EdgeInsets.only(left: 18.0, right: 18, top: 32),
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child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
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children: [
const Text(
'Enter the OATH password for your YubiKey',
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),
const SizedBox(height: 16.0),
TextField(
controller: _passwordController,
autofocus: true,
obscureText: _isObscure,
decoration: InputDecoration(
border: const OutlineInputBorder(),
labelText: 'Password',
errorText: _passwordIsWrong ? 'Wrong password' : null,
helperText: '', // Prevents resizing when errorText shown
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prefixIcon: const Icon(Icons.password_outlined),
suffixIcon: IconButton(
icon: Icon(
_isObscure ? Icons.visibility : Icons.visibility_off,
),
onPressed: () {
setState(() {
_isObscure = !_isObscure;
});
},
),
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),
onChanged: (_) => setState(() {
_passwordIsWrong = false;
}), // Update state on change
onSubmitted: (_) => _submit(),
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),
],
),
),
const SizedBox(height: 8.0),
keystoreFailed
? const ListTile(
leading: Icon(Icons.warning_amber_rounded),
title: Text('OS Keystore unavailable'),
dense: true,
minLeadingWidth: 0,
)
: CheckboxListTile(
title: const Text('Remember password'),
dense: true,
controlAffinity: ListTileControlAffinity.leading,
value: _remember,
onChanged: (value) {
setState(() {
_remember = value ?? false;
});
},
),
Padding(
padding: const EdgeInsets.only(top: 12.0, right: 18.0, bottom: 4.0),
child: Align(
alignment: Alignment.centerRight,
child: ElevatedButton(
onPressed: _passwordController.text.isNotEmpty ? _submit : null,
child: const Text('Unlock'),
),
),
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),
],
);
}
}