yubioath-flutter/lib/fido/views/fido_screen.dart

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import 'dart:io';
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import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../app/message.dart';
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import '../../app/models.dart';
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import '../../app/state.dart';
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import '../../app/views/app_failure_screen.dart';
import '../../app/views/app_loading_screen.dart';
import '../../app/views/app_page.dart';
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import '../../app/views/device_avatar.dart';
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import '../../desktop/state.dart';
import '../../management/models.dart';
import '../models.dart';
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import '../state.dart';
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import 'credential_page.dart';
import 'fingerprint_page.dart';
import 'main_page.dart';
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final _subPageProvider = StateProvider<SubPage>((ref) {
// Reset whenever the device changes.
ref.watch(currentDeviceProvider);
return SubPage.main;
});
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class FidoScreen extends ConsumerWidget {
final YubiKeyData deviceData;
const FidoScreen(this.deviceData, {Key? key}) : super(key: key);
@override
Widget build(BuildContext context, WidgetRef ref) {
final subPage = ref.watch(_subPageProvider);
return AppPage(
onBack: subPage != SubPage.main
? () {
ref.read(_subPageProvider.notifier).state = SubPage.main;
}
: null,
title: const Text('WebAuthn'),
child: ref.watch(fidoStateProvider(deviceData.node.path)).when(
loading: () => const AppLoadingScreen(),
error: (error, _) {
final supported = deviceData
.info.supportedCapabilities[deviceData.node.transport]!;
if (Capability.fido2.value & supported == 0) {
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return const AppFailureScreen(
'WebAuthn is supported by this device, but there are no management options available.');
}
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if (Platform.isWindows) {
if (!ref
.watch(rpcStateProvider.select((state) => state.isAdmin))) {
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return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
const DeviceAvatar(child: Icon(Icons.lock)),
const Text(
'WebAuthn management requires elevated privileges.',
textAlign: TextAlign.center,
),
OutlinedButton.icon(
icon: const Icon(Icons.lock_open),
label: const Text('Unlock'),
onPressed: () async {
final controller = showMessage(
context, 'Elevating permissions...',
duration: const Duration(seconds: 30));
try {
if (await ref.read(rpcProvider).elevate()) {
ref.refresh(rpcProvider);
} else {
showMessage(context, 'Permission denied');
}
} finally {
controller.close();
}
}),
]
.map((e) => Padding(
child: e,
padding:
const EdgeInsets.symmetric(vertical: 8.0),
))
.toList(),
),
);
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}
}
return AppFailureScreen('$error');
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},
data: (state) {
switch (subPage) {
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case SubPage.fingerprints:
return FingerprintPage(deviceData.node.path, state);
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case SubPage.credentials:
return CredentialPage(deviceData.node.path, state);
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default:
return FidoMainPage(
deviceData.node,
state,
setSubPage: (page) {
ref.read(_subPageProvider.notifier).state = page;
},
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);
}
}),
);
}
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}