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immich/mobile/lib/services/oauth.service.dart

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import 'package:flutter_web_auth_2/flutter_web_auth_2.dart';
import 'package:immich_mobile/services/api.service.dart';
import 'package:logging/logging.dart';
import 'package:openapi/api.dart';
// Redirect URL = app.immich:///oauth-callback
class OAuthService {
final ApiService _apiService;
final callbackUrlScheme = 'app.immich';
final log = Logger('OAuthService');
OAuthService(this._apiService);
Future<String?> getOAuthServerUrl(
String serverUrl,
String state,
String codeChallenge,
) async {
// Resolve API server endpoint from user provided serverUrl
await _apiService.resolveAndSetEndpoint(serverUrl);
final redirectUri = '$callbackUrlScheme:///oauth-callback';
log.info(
"Starting OAuth flow with redirect URI: $redirectUri",
);
final dto = await _apiService.oAuthApi.startOAuth(
OAuthConfigDto(
redirectUri: redirectUri,
state: state,
codeChallenge: codeChallenge,
),
);
final authUrl = dto?.url;
log.info('Received Authorization URL: $authUrl');
return authUrl;
}
Future<LoginResponseDto?> oAuthLogin(
String oauthUrl,
String state,
String codeVerifier,
) async {
String result = await FlutterWebAuth2.authenticate(
url: oauthUrl,
callbackUrlScheme: callbackUrlScheme,
);
log.info('Received OAuth callback: $result');
if (result.startsWith('app.immich:/oauth-callback')) {
result = result.replaceAll(
'app.immich:/oauth-callback',
'app.immich:///oauth-callback',
);
}
return await _apiService.oAuthApi.finishOAuth(
OAuthCallbackDto(
url: result,
state: state,
codeVerifier: codeVerifier,
),
);
}
}