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fix(auth): Improve auth error handling without token clearing

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This commit is contained in:
cogwheel0
2025-11-12 13:23:58 +05:30
parent 35377cebd8
commit 45135d9185
10 changed files with 239 additions and 79 deletions
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30
lib/core/auth/api_auth_interceptor.dart
View File

@@ -1,3 +1,5 @@
import 'dart:async';
import 'package:dio/dio.dart';
import '../utils/debug_logger.dart';
@@ -136,6 +138,7 @@ class ApiAuthInterceptor extends Interceptor {
final path = err.requestOptions.path;
// Handle authentication errors consistently
// IMPORTANT: Never auto-logout. Instead, notify the app to show connection issue page
if (statusCode == 401) {
// Do not clear the token for public or optional-auth endpoints.
// A 401 here may indicate endpoint-level permission or server config,
@@ -143,8 +146,9 @@ class ApiAuthInterceptor extends Interceptor {
final requiresAuth = _requiresAuth(path);
final optionalAuth = _hasOptionalAuth(path);
if (requiresAuth && !optionalAuth) {
DebugLogger.auth('401 Unauthorized on $path - clearing auth token');
_clearAuthToken();
_notifyAuthFailure(
'401 Unauthorized on $path - notifying app without clearing token',
);
} else {
DebugLogger.auth(
'401 on public/optional endpoint $path - keeping auth token',
@@ -155,10 +159,9 @@ class ApiAuthInterceptor extends Interceptor {
final requiresAuth = _requiresAuth(path);
final optionalAuth = _hasOptionalAuth(path);
if (requiresAuth && !optionalAuth) {
DebugLogger.auth(
'403 Forbidden on protected endpoint $path - clearing auth token',
_notifyAuthFailure(
'403 Forbidden on protected endpoint $path - notifying app without clearing token',
);
_clearAuthToken();
} else {
DebugLogger.auth(
'403 Forbidden on public/optional endpoint $path - keeping auth token',
@@ -169,9 +172,24 @@ class ApiAuthInterceptor extends Interceptor {
handler.next(err);
}
/// Clear auth token and notify callbacks
/// Note: This should only be called for explicit logout, not for connection errors
void _clearAuthToken() {
_authToken = null;
final future = onTokenInvalidated?.call();
if (future != null) {
unawaited(future);
}
}
void _notifyAuthFailure(String message) {
DebugLogger.auth(message);
onAuthTokenInvalid?.call();
onTokenInvalidated?.call();
}
/// Explicitly clear auth token for logout scenarios
void clearAuthTokenForLogout() {
_clearAuthToken();
}
}

156
lib/core/auth/auth_state_manager.dart
View File

@@ -79,6 +79,7 @@ enum AuthStatus {
unauthenticated,
tokenExpired,
error,
credentialError, // Invalid credentials - need re-login
}
/// Unified auth state manager - single source of truth for all auth operations
@@ -87,6 +88,11 @@ class AuthStateManager extends _$AuthStateManager {
final AuthCacheManager _cacheManager = AuthCacheManager();
Future<bool>? _silentLoginFuture;
// Prevent infinite retry loops
int _retryCount = 0;
static const int _maxRetries = 3;
DateTime? _lastRetryTime;
AuthState get _current =>
state.asData?.value ?? const AuthState(status: AuthStatus.initial);
@@ -496,13 +502,23 @@ class AuthStateManager extends _$AuthStateManager {
String errorMessage = e.toString();
// Clear invalid credentials on auth errors
if (e.toString().contains('401') ||
e.toString().contains('403') ||
e.toString().contains('authentication') ||
e.toString().contains('unauthorized')) {
// Don't clear credentials on connection errors - only clear on actual auth failures
// Check if this is a genuine auth failure vs network issue
final isNetworkError =
e.toString().contains('SocketException') ||
e.toString().contains('Connection') ||
e.toString().contains('timeout') ||
e.toString().contains('NetworkImage');
if (!isNetworkError &&
(e.toString().contains('401') ||
e.toString().contains('403') ||
e.toString().contains('authentication') ||
e.toString().contains('unauthorized'))) {
// Only clear credentials if this is a real auth failure, not a network issue
final storage = ref.read(optimizedStorageServiceProvider);
try {
DebugLogger.auth('Clearing invalid credentials after auth failure');
await storage.deleteSavedCredentials();
} catch (deleteError, deleteStack) {
DebugLogger.error(
@@ -516,72 +532,148 @@ class AuthStateManager extends _$AuthStateManager {
'credentials; please clear Conduit credentials from '
'system settings.';
}
// Set credential error status to trigger login page
_update(
(current) => current.copyWith(
status: AuthStatus.credentialError,
error: errorMessage,
isLoading: false,
clearToken: true,
),
);
return false;
} else if (isNetworkError) {
DebugLogger.auth(
'Silent login failed due to network error - keeping credentials',
);
errorMessage = 'Connection issue - please check your network';
// Set general error status to trigger connection issue page
_update(
(current) => current.copyWith(
status: AuthStatus.error,
error: errorMessage,
isLoading: false,
),
);
return false;
}
// Unknown error type - treat as connection issue but keep credentials
if (errorMessage.trim().isEmpty) {
errorMessage = 'Connection issue - please try again shortly';
}
DebugLogger.auth(
'Silent login failed with unknown error - keeping credentials',
);
_update(
(current) => current.copyWith(
status: AuthStatus.unauthenticated,
status: AuthStatus.error,
error: errorMessage,
isLoading: false,
clearToken: true,
),
);
return false;
}
}
/// Handle token invalidation (called by API service)
/// Reset retry counter (called when user manually retries)
void resetRetryCounter() {
_retryCount = 0;
_lastRetryTime = null;
DebugLogger.auth('Retry counter reset for manual retry');
}
/// Handle auth issues (called by API service)
/// This shows connection issue page instead of logging out
void onAuthIssue() {
DebugLogger.auth('Auth issue detected - showing connection issue page');
// Don't clear token or user data - just set error state
// The router will show connection issue page
_update(
(current) => current.copyWith(
status: AuthStatus.error,
error: 'Connection issue - please check your connection',
clearError: false,
),
);
}
/// Handle token invalidation (called by API service for explicit token expiry)
/// This is only used when we need to clear the token for re-login attempts
Future<void> onTokenInvalidated() async {
// Prevent infinite retry loops
final now = DateTime.now();
if (_lastRetryTime != null &&
now.difference(_lastRetryTime!).inSeconds < 5) {
_retryCount++;
if (_retryCount >= _maxRetries) {
DebugLogger.auth(
'Max retry attempts reached - stopping silent re-login',
);
_update(
(current) => current.copyWith(
status: AuthStatus.error,
error: 'Connection issue - please retry manually',
clearError: false,
),
);
// Reset after 30 seconds to allow manual retry
Future.delayed(const Duration(seconds: 30), () {
_retryCount = 0;
_lastRetryTime = null;
});
return;
}
} else {
// Reset counter if enough time has passed
_retryCount = 0;
}
_lastRetryTime = now;
// Avoid spamming logs if multiple requests invalidate at once
final reloginInProgress = _silentLoginFuture != null;
if (!reloginInProgress) {
DebugLogger.auth('Auth token invalidated');
DebugLogger.auth(
'Auth token invalidated - attempting silent re-login (attempt ${_retryCount + 1}/$_maxRetries)',
);
}
// Clear token from storage
final storage = ref.read(optimizedStorageServiceProvider);
try {
await storage.deleteAuthToken();
_updateApiServiceToken(null);
} catch (error, stack) {
DebugLogger.auth('Cleared invalidated token from secure storage');
} catch (e, stack) {
DebugLogger.error(
'token-delete-failed',
scope: 'auth/state',
error: error,
error: e,
stackTrace: stack,
);
_updateApiServiceToken(null);
_update(
(current) => current.copyWith(
status: AuthStatus.error,
error:
'Failed to clear secure token. Please clear Conduit '
'credentials from your device keychain and sign in again.',
clearToken: true,
clearUser: true,
clearError: false,
),
);
return;
}
_updateApiServiceToken(null);
// Update state
_update(
(current) => current.copyWith(
status: AuthStatus.tokenExpired,
error: 'Session expired - please sign in again',
clearToken: true,
clearUser: true,
clearError: true,
isLoading: false,
),
);
// Attempt silent re-login if credentials are available
final hasCredentials = await storage.getSavedCredentials() != null;
if (hasCredentials) {
if (!reloginInProgress) {
DebugLogger.auth('Attempting silent re-login after token invalidation');
if (hasCredentials && !reloginInProgress) {
DebugLogger.auth('Attempting silent re-login after token invalidation');
final success = await silentLogin();
if (success) {
// Reset retry counter on success
_retryCount = 0;
_lastRetryTime = null;
}
await silentLogin();
}
}

13
lib/core/providers/app_providers.dart
View File

@@ -275,8 +275,14 @@ final apiServiceProvider = Provider<ApiService?>((ref) {
// Keep callbacks in sync so interceptor can notify auth manager
apiService.setAuthCallbacks(
onAuthTokenInvalid: () {},
onAuthTokenInvalid: () {
// Called when auth errors occur (401/403)
// Show connection issue page instead of logging out
final authManager = ref.read(authStateManagerProvider.notifier);
authManager.onAuthIssue();
},
onTokenInvalidated: () async {
// Called for token expiry - attempt silent re-login
final authManager = ref.read(authStateManagerProvider.notifier);
await authManager.onTokenInvalidated();
},
@@ -291,8 +297,9 @@ final apiServiceProvider = Provider<ApiService?>((ref) {
// Keep legacy callback for backward compatibility during transition
apiService.onAuthTokenInvalid = () {
// This will be removed once migration is complete
DebugLogger.auth('legacy-token-callback', scope: 'auth/api');
// Show connection issue page instead of logging out
final authManager = ref.read(authStateManagerProvider.notifier);
authManager.onAuthIssue();
};
return apiService;

17
lib/core/router/app_router.dart
View File

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:go_router/go_router.dart';
import '../auth/auth_state_manager.dart';
import '../providers/app_providers.dart';
import '../services/connectivity_service.dart';
import '../services/navigation_service.dart';
@@ -129,8 +130,20 @@ class RouterNotifier extends ChangeNotifier {
if (location == Routes.connectionIssue) return null;
return null;
case AuthNavigationState.error:
if (location == Routes.connectionIssue) return null;
return null;
final authSnapshot = ref
.read(authStateManagerProvider)
.maybeWhen(data: (state) => state, orElse: () => null);
final hasValidToken = authSnapshot?.hasValidToken ?? false;
final isAuthFormRoute =
location == Routes.login || location == Routes.authentication;
if (!hasValidToken && isAuthFormRoute) {
// Keep user on the login/authentication flow to show inline errors
return null;
}
// Otherwise show connection issue page for recoverable auth errors
return location == Routes.connectionIssue
? null
: Routes.connectionIssue;
case AuthNavigationState.authenticated:
// Avoid unnecessary redirects if already on a non-auth route
if (_isAuthLocation(location) ||

23
lib/core/services/api_service.dart
View File

@@ -1170,9 +1170,7 @@ class ApiService {
data,
debugLabel: 'parse_file_search',
);
return normalized
.map(FileInfo.fromJson)
.toList(growable: false);
return normalized.map(FileInfo.fromJson).toList(growable: false);
}
return const [];
}
@@ -1186,9 +1184,7 @@ class ApiService {
data,
debugLabel: 'parse_file_all',
);
return normalized
.map(FileInfo.fromJson)
.toList(growable: false);
return normalized.map(FileInfo.fromJson).toList(growable: false);
}
return const [];
}
@@ -1599,10 +1595,7 @@ class ApiService {
if (data is Map<String, dynamic>) {
final voices = data['voices'];
if (voices is List) {
return _normalizeList(
voices,
debugLabel: 'parse_voice_list',
);
return _normalizeList(voices, debugLabel: 'parse_voice_list');
}
}
if (data is List) {
@@ -1795,10 +1788,7 @@ class ApiService {
final response = await _dio.get('/api/v1/images/models');
final data = response.data;
if (data is List) {
return _normalizeList(
data,
debugLabel: 'parse_image_models',
);
return _normalizeList(data, debugLabel: 'parse_image_models');
}
return [];
}
@@ -3213,10 +3203,7 @@ class ApiService {
final data = response.data;
if (data is List) {
return _normalizeList(
data,
debugLabel: 'parse_message_search',
);
return _normalizeList(data, debugLabel: 'parse_message_search');
}
if (data is Map<String, dynamic>) {
final list = (data['items'] ?? data['results'] ?? data['messages']);

5
lib/core/services/settings_service.dart
View File

@@ -161,7 +161,10 @@ class SettingsService {
box.get(PreferenceKeys.voiceSttPreference) as String?,
),
voiceSilenceDuration:
(box.get(_voiceSilenceDurationKey) as int? ?? 2000).clamp(300, 3000),
(box.get(_voiceSilenceDurationKey) as int? ?? 2000).clamp(
300,
3000,
),
),
);
}