mirror of
https://github.com/Yubico/yubioath-flutter.git
synced 2024-12-24 02:33:44 +03:00
340 lines
11 KiB
Dart
340 lines
11 KiB
Dart
/*
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* Copyright (C) 2023 Yubico.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import 'dart:io';
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import 'package:file_picker/file_picker.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_gen/gen_l10n/app_localizations.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:material_symbols_icons/symbols.dart';
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import '../../app/message.dart';
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import '../../app/models.dart';
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import '../../app/shortcuts.dart';
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import '../../app/state.dart';
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import '../../core/state.dart';
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import '../features.dart' as features;
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import '../keys.dart' as keys;
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import '../models.dart';
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import '../state.dart';
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import 'authentication_dialog.dart';
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import 'delete_certificate_dialog.dart';
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import 'generate_key_dialog.dart';
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import 'import_file_dialog.dart';
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import 'pin_dialog.dart';
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class GenerateIntent extends Intent {
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final PivSlot slot;
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const GenerateIntent(this.slot);
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}
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class ImportIntent extends Intent {
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final PivSlot slot;
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const ImportIntent(this.slot);
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}
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class ExportIntent extends Intent {
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final PivSlot slot;
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const ExportIntent(this.slot);
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}
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Future<bool> _authIfNeeded(BuildContext context, WidgetRef ref,
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DevicePath devicePath, PivState pivState) async {
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if (pivState.needsAuth) {
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if (pivState.protectedKey &&
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pivState.metadata?.pinMetadata.defaultValue == true) {
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final status = await ref
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.read(pivStateProvider(devicePath).notifier)
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.verifyPin(defaultPin);
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return status.when(success: () => true, failure: (_) => false);
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}
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return await showBlurDialog(
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context: context,
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builder: (context) => pivState.protectedKey
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? PinDialog(devicePath)
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: AuthenticationDialog(
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devicePath,
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pivState,
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),
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) ??
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false;
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}
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return true;
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}
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class PivActions extends ConsumerWidget {
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final DevicePath devicePath;
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final PivState pivState;
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final Map<Type, Action<Intent>> Function(BuildContext context)? actions;
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final Widget Function(BuildContext context) builder;
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const PivActions(
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{super.key,
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required this.devicePath,
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required this.pivState,
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this.actions,
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required this.builder});
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final withContext = ref.read(withContextProvider);
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final hasFeature = ref.read(featureProvider);
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return Actions(
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actions: {
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if (hasFeature(features.slotsGenerate))
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GenerateIntent:
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CallbackAction<GenerateIntent>(onInvoke: (intent) async {
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//Verify management key and maybe PIN
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if (!await withContext((context) =>
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_authIfNeeded(context, ref, devicePath, pivState))) {
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return false;
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}
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// Verify PIN, unless already done above
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// TODO: Avoid asking for PIN if not needed?
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if (!pivState.protectedKey) {
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bool verified;
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if (pivState.metadata?.pinMetadata.defaultValue == true) {
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final status = await ref
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.read(pivStateProvider(devicePath).notifier)
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.verifyPin(defaultPin);
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verified =
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status.when(success: () => true, failure: (_) => false);
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} else {
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verified = await withContext((context) async =>
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await showBlurDialog(
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context: context,
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builder: (context) => PinDialog(devicePath))) ??
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false;
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}
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if (!verified) {
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return false;
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}
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}
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return await withContext((context) async {
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final l10n = AppLocalizations.of(context)!;
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final PivGenerateResult? result = await showBlurDialog(
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context: context,
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builder: (context) => GenerateKeyDialog(
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devicePath,
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pivState,
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intent.slot,
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),
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);
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if (result != null) {
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final (fileExt, title, data) = switch (result.generateType) {
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GenerateType.publicKey => (
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'pem',
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l10n.l_export_public_key_file,
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result.publicKey,
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),
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GenerateType.csr => (
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'csr',
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l10n.l_export_csr_file,
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result.result,
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),
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_ => (null, null, null),
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};
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if (fileExt != null) {
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final filePath = await FilePicker.platform.saveFile(
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dialogTitle: title,
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allowedExtensions: [fileExt],
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type: FileType.custom,
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lockParentWindow: true,
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);
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if (filePath != null) {
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final file = File(filePath);
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await file.writeAsString(data!, flush: true);
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}
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}
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}
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return result != null;
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});
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}),
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if (hasFeature(features.slotsImport))
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ImportIntent: CallbackAction<ImportIntent>(onInvoke: (intent) async {
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if (!await withContext((context) =>
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_authIfNeeded(context, ref, devicePath, pivState))) {
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return false;
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}
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final picked = await withContext(
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(context) async {
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final l10n = AppLocalizations.of(context)!;
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return await FilePicker.platform.pickFiles(
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allowedExtensions: [
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'pem',
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'der',
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'pfx',
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'p12',
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'key',
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'crt'
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],
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type: FileType.custom,
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allowMultiple: false,
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lockParentWindow: true,
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dialogTitle: l10n.l_select_import_file);
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},
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);
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if (picked == null || picked.files.isEmpty) {
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return false;
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}
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return await withContext((context) async =>
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await showBlurDialog(
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context: context,
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builder: (context) => ImportFileDialog(
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devicePath,
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pivState,
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intent.slot,
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File(picked.paths.first!),
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),
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) ??
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false);
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}),
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if (hasFeature(features.slotsExport))
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ExportIntent: CallbackAction<ExportIntent>(onInvoke: (intent) async {
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final l10n = AppLocalizations.of(context)!;
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final (metadata, cert) = await ref
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.read(pivSlotsProvider(devicePath).notifier)
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.read(intent.slot.slot);
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String title;
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String message;
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String data;
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if (cert != null) {
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title = l10n.l_export_certificate_file;
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message = l10n.l_certificate_exported;
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data = cert;
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} else if (metadata != null) {
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title = l10n.l_export_public_key_file;
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message = l10n.l_public_key_exported;
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data = metadata.publicKey;
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} else {
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return false;
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}
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final filePath = await withContext((context) async {
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return await FilePicker.platform.saveFile(
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dialogTitle: title,
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allowedExtensions: ['pem'],
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type: FileType.custom,
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lockParentWindow: true,
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);
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});
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if (filePath == null) {
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return false;
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}
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final file = File(filePath);
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await file.writeAsString(data, flush: true);
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await withContext((context) async {
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showMessage(context, message);
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});
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return true;
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}),
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if (hasFeature(features.slotsDelete))
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DeleteIntent<PivSlot>:
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CallbackAction<DeleteIntent<PivSlot>>(onInvoke: (intent) async {
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if (!await withContext((context) =>
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_authIfNeeded(context, ref, devicePath, pivState))) {
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return false;
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}
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final bool? deleted = await withContext((context) async =>
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await showBlurDialog(
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context: context,
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builder: (context) => DeleteCertificateDialog(
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devicePath,
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intent.target,
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),
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) ??
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false);
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return deleted;
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}),
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},
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child: Builder(
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// Builder to ensure new scope for actions, they can invoke parent actions
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builder: (context) {
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final child = Builder(builder: builder);
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return actions != null
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? Actions(actions: actions!(context), child: child)
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: child;
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},
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),
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);
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}
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}
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List<ActionItem> buildSlotActions(PivSlot slot, AppLocalizations l10n) {
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final hasCert = slot.certInfo != null;
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final hasKey = slot.metadata != null;
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return [
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ActionItem(
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key: keys.generateAction,
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feature: features.slotsGenerate,
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icon: const Icon(Symbols.add),
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actionStyle: ActionStyle.primary,
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title: l10n.s_generate_key,
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subtitle: l10n.l_generate_desc,
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intent: GenerateIntent(slot),
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),
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ActionItem(
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key: keys.importAction,
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feature: features.slotsImport,
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icon: const Icon(Symbols.file_download),
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title: l10n.l_import_file,
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subtitle: l10n.l_import_desc,
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intent: ImportIntent(slot),
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),
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if (hasCert) ...[
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ActionItem(
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key: keys.exportAction,
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feature: features.slotsExport,
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icon: const Icon(Symbols.file_upload),
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title: l10n.l_export_certificate,
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subtitle: l10n.l_export_certificate_desc,
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intent: ExportIntent(slot),
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),
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ActionItem(
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key: keys.deleteAction,
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feature: features.slotsDelete,
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actionStyle: ActionStyle.error,
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icon: const Icon(Symbols.delete),
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title: l10n.l_delete_certificate,
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subtitle: l10n.l_delete_certificate_desc,
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intent: DeleteIntent(slot),
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),
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] else if (hasKey) ...[
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ActionItem(
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key: keys.exportAction,
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feature: features.slotsExport,
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icon: const Icon(Symbols.file_upload),
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title: l10n.l_export_public_key,
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subtitle: l10n.l_export_public_key_desc,
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intent: ExportIntent(slot),
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),
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],
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];
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}
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