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baron-sso/userfront/lib/features/auth/presentation/consent_screen.dart

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Dart

import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:userfront/i18n.dart';
import 'package:userfront/core/i18n/locale_utils.dart';
import 'package:userfront/core/services/auth_proxy_service.dart';
import 'package:userfront/core/services/web_window.dart';
import 'package:userfront/core/ui/toast_service.dart';
import 'package:userfront/features/auth/domain/consent_error_routing.dart';
import 'package:userfront/features/auth/domain/consent_scope_policy.dart';
class ConsentScreen extends StatefulWidget {
final String consentChallenge;
final Future<Map<String, dynamic>> Function(String consentChallenge)?
consentInfoLoader;
const ConsentScreen({
super.key,
required this.consentChallenge,
this.consentInfoLoader,
});
@override
State<ConsentScreen> createState() => _ConsentScreenState();
}
class _ConsentScreenState extends State<ConsentScreen> {
Map<String, dynamic>? _consentInfo;
bool _isLoading = true;
bool _isSubmitting = false;
String? _error;
final Set<String> _selectedScopes = {};
final Map<String, String> _scopeDescriptions = {};
final Set<String> _mandatoryScopes = {'openid'};
@override
void initState() {
super.initState();
_scopeDescriptions.addAll(_defaultScopeDescriptions());
_fetchConsentInfo();
}
Map<String, String> _defaultScopeDescriptions() {
return {
'openid': tr(
'msg.userfront.consent.scope.openid',
fallback: 'OpenID authentication information (signin session check)',
),
'profile': tr(
'msg.userfront.consent.scope.profile',
fallback: 'Basic profile information (name, user identifier)',
),
'email': tr(
'msg.userfront.consent.scope.email',
fallback: 'Email address (account identification and notifications)',
),
'phone': tr(
'msg.userfront.consent.scope.phone',
fallback: 'Phone number (identity verification and notifications)',
),
};
}
String _renderConsentText(String key, {String? fallback}) {
return tr(
key,
fallback: fallback,
).replaceAll(r'\\n', '\n').replaceAll(r'\n', '\n').replaceAll('\\\n', '\n');
}
String _renderScopeCountLabel(int count) {
return tr(
'msg.userfront.consent.scope_count',
fallback: 'Total {{count}}',
params: {'count': '$count'},
).replaceAll('{$count}', '$count');
}
String _scopeDisplayLabel(String scope) {
return scope.replaceAll('_', ' ');
}
String _renderClientIdLabel(String clientId) {
final raw = tr(
'msg.userfront.consent.client_id',
fallback: 'Client ID: {{id}}',
);
final normalized = raw
.replaceAll('{{id}}', '')
.replaceAll('{id}', '')
.trimRight();
return '$normalized $clientId';
}
Future<void> _fetchConsentInfo() async {
try {
final loader =
widget.consentInfoLoader ?? AuthProxyService.getConsentInfo;
final info = await loader(widget.consentChallenge);
// [Skip Logic] 백엔드에서 자동 승인되어 리다이렉트 URL이 온 경우 즉시 이동
if (info['redirectTo'] != null) {
webWindow.redirectTo(info['redirectTo']);
return;
}
// 백엔드에서 전달받은 커스텀 스코프 정보(scope_details) 적용
if (info['scope_details'] != null) {
final details = info['scope_details'] as Map<String, dynamic>;
details.forEach((scope, detail) {
if (detail is Map<String, dynamic>) {
// 설명 업데이트
if (detail['description'] != null &&
detail['description'].toString().isNotEmpty) {
_scopeDescriptions[scope] = detail['description'].toString();
}
// 필수 여부 업데이트
if (detail['mandatory'] == true) {
_mandatoryScopes.add(scope);
} else {
// openid는 기본적으로 필수지만 설정에서 굳이 껐다면?
// 안전을 위해 openid는 항상 필수로 유지하는 것이 좋지만,
// 여기서는 서버 설정을 존중하되 openid는 예외처리 할 수도 있음.
// 우선 서버 설정이 있으면 반영 (단, openid는 제거하지 않음)
if (scope != 'openid') {
_mandatoryScopes.remove(scope);
}
}
}
});
}
// 초기 선택 상태 설정: 모든 요청된 스코프를 기본 선택
final requestedScopes = filterConsentScopes(
(info['requested_scope'] as List<dynamic>?)?.cast<String>() ?? [],
);
_selectedScopes.addAll(requestedScopes);
info['requested_scope'] = requestedScopes;
setState(() {
_consentInfo = info;
_isLoading = false;
});
} on AuthProxyException catch (e) {
if (shouldRouteConsentErrorToErrorScreen(e)) {
if (!mounted) {
return;
}
final target = buildTenantAccessErrorPath(e, Uri.base);
context.go(target);
return;
}
setState(() {
_error = tr(
'msg.userfront.consent.load_error',
fallback: 'Failed to load consent information: {{error}}',
params: {'error': e.message},
);
_isLoading = false;
});
} catch (e) {
setState(() {
_error = tr(
'msg.userfront.consent.load_error',
fallback: 'Failed to load consent information: {{error}}',
params: {'error': '$e'},
);
_isLoading = false;
});
}
}
Future<void> _acceptConsent() async {
setState(() {
_isSubmitting = true;
_error = null;
});
try {
// 선택된 스코프만 리스트로 변환하여 전송
final result = await AuthProxyService.acceptConsent(
widget.consentChallenge,
grantScope: _selectedScopes.toList(),
);
if (result['redirectTo'] != null) {
webWindow.redirectTo(result['redirectTo']);
} else {
setState(() {
_error = tr(
'msg.userfront.consent.missing_redirect',
fallback:
'Consent was processed, but the redirect URL was missing.',
);
_isSubmitting = false;
});
}
} catch (e) {
setState(() {
_error = tr(
'msg.userfront.consent.accept_error',
fallback: 'Failed to process consent: {{error}}',
params: {'error': '$e'},
);
_isSubmitting = false;
});
}
}
Future<void> _onCancel() async {
final confirmed = await showDialog<bool>(
context: context,
builder: (context) => AlertDialog(
title: Text(tr('ui.userfront.consent.cancel.title')),
content: Text(tr('msg.userfront.consent.cancel.confirm')),
actions: [
TextButton(
onPressed: () => Navigator.pop(context, false),
child: Text(tr('ui.common.cancel')),
),
TextButton(
onPressed: () => Navigator.pop(context, true),
style: TextButton.styleFrom(foregroundColor: Colors.red),
child: Text(tr('ui.userfront.consent.cancel.confirm_button')),
),
],
),
);
if (confirmed == true) {
setState(() => _isSubmitting = true);
try {
final resp = await AuthProxyService.rejectConsent(
widget.consentChallenge,
);
final redirectTo = resp['redirectTo'];
if (redirectTo != null) {
webWindow.redirectTo(redirectTo);
} else {
if (mounted) context.go(buildLocalizedHomePath(Uri.base));
}
} catch (e) {
setState(() => _isSubmitting = false);
if (mounted) {
ToastService.error(
tr(
'msg.userfront.consent.cancel.error',
fallback: 'An error occurred while cancelling consent: {{error}}',
params: {'error': '$e'},
),
);
}
}
}
}
@override
Widget build(BuildContext context) {
// 배경색을 약간 어둡게 처리하거나, 전체적인 테마 색상을 사용
return Scaffold(
backgroundColor: Colors.grey[100],
body: Center(
child: _isLoading
? const CircularProgressIndicator()
: _error != null
? _buildErrorCard()
: _buildConsentCard(context),
),
);
}
Widget _buildErrorCard() {
return Card(
margin: const EdgeInsets.all(24),
child: Padding(
padding: const EdgeInsets.all(24),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
const Icon(Icons.error_outline, color: Colors.red, size: 48),
const SizedBox(height: 16),
Text(_error!, textAlign: TextAlign.center),
],
),
),
);
}
Widget _buildConsentCard(BuildContext context) {
final clientRawName = _consentInfo?['client']?['client_name'] as String?;
final clientId = _consentInfo?['client']?['client_id'] as String? ?? '-';
final clientName = (clientRawName != null && clientRawName.isNotEmpty)
? clientRawName
: (clientId != '-'
? clientId
: tr('msg.userfront.consent.client_unknown'));
final clientLogo = _consentInfo?['client']?['logo_uri'];
final requestedScopes = filterConsentScopes(
(_consentInfo?['requested_scope'] as List<dynamic>?)?.cast<String>() ??
[],
);
return SingleChildScrollView(
child: Container(
constraints: const BoxConstraints(maxWidth: 520),
margin: const EdgeInsets.all(16),
child: Card(
elevation: 8,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(16),
),
child: Padding(
padding: const EdgeInsets.all(32.0),
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
// 1. 헤더 영역
Text(
tr('ui.userfront.consent.title'),
style: const TextStyle(
fontSize: 24,
fontWeight: FontWeight.bold,
),
textAlign: TextAlign.center,
),
const SizedBox(height: 12),
Text(
_renderConsentText('msg.userfront.consent.description'),
style: TextStyle(fontSize: 14, color: Colors.grey[600]),
textAlign: TextAlign.center,
),
const SizedBox(height: 32),
// 2. 서비스 정보 영역
Container(
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.grey[50],
borderRadius: BorderRadius.circular(12),
border: Border.all(color: Colors.grey[200]!),
),
child: Row(
children: [
if (clientLogo != null &&
clientLogo.toString().isNotEmpty)
Padding(
padding: const EdgeInsets.only(right: 16),
child: CircleAvatar(
radius: 24,
backgroundImage: NetworkImage(clientLogo),
backgroundColor: Colors.transparent,
),
)
else
const Padding(
padding: EdgeInsets.only(right: 16),
child: CircleAvatar(
radius: 24,
child: Icon(Icons.apps),
),
),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
clientName,
style: const TextStyle(
fontSize: 18,
fontWeight: FontWeight.w600,
),
),
const SizedBox(height: 4),
Text(
_renderClientIdLabel(clientId),
style: TextStyle(
fontSize: 12,
color: Colors.grey[500],
fontFamily: 'monospace',
),
),
],
),
),
],
),
),
const SizedBox(height: 32),
// 3. 권한 선택 영역
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
tr('ui.userfront.consent.requested_scopes'),
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
Text(
_renderScopeCountLabel(requestedScopes.length),
style: TextStyle(
fontSize: 14,
color: Theme.of(context).primaryColor,
fontWeight: FontWeight.w500,
),
),
],
),
const SizedBox(height: 8),
const Divider(),
...requestedScopes.map((scope) {
final isMandatory = _mandatoryScopes.contains(scope);
final description = _scopeDescriptions[scope] ?? scope;
final isSelected = _selectedScopes.contains(scope);
return CheckboxListTile(
title: Text(
_scopeDisplayLabel(scope),
style: const TextStyle(fontWeight: FontWeight.w500),
),
subtitle: Text(description),
value: isSelected,
onChanged: isMandatory
? null // 필수 항목은 변경 불가 (비활성화 상태로 체크됨)
: (bool? value) {
setState(() {
if (value == true) {
_selectedScopes.add(scope);
} else {
_selectedScopes.remove(scope);
}
});
},
controlAffinity: ListTileControlAffinity.leading,
contentPadding: EdgeInsets.zero,
activeColor: Theme.of(context).primaryColor,
);
}),
const Divider(),
const SizedBox(height: 32),
// 4. 버튼 영역
ElevatedButton(
onPressed: _isSubmitting ? null : _acceptConsent,
style: ElevatedButton.styleFrom(
padding: const EdgeInsets.symmetric(vertical: 16),
backgroundColor: const Color(0xFF1A1F2C), // 브랜드 컬러
foregroundColor: Colors.white,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(8),
),
elevation: 0,
),
child: _isSubmitting
? const SizedBox(
height: 20,
width: 20,
child: CircularProgressIndicator(
strokeWidth: 2,
color: Colors.white,
),
)
: Text(
tr('ui.userfront.consent.accept'),
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
),
const SizedBox(height: 12),
OutlinedButton(
onPressed: _isSubmitting ? null : _onCancel,
style: OutlinedButton.styleFrom(
padding: const EdgeInsets.symmetric(vertical: 16),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(8),
),
),
child: Text(tr('ui.common.cancel')),
),
const SizedBox(height: 16),
Text(
tr('msg.userfront.consent.redirect_notice'),
style: TextStyle(fontSize: 12, color: Colors.grey[500]),
textAlign: TextAlign.center,
),
],
),
),
),
),
);
}
}