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plezy/lib/services/trakt/trakt_auth_service.dart
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Dart

import 'dart:convert';
import 'package:http/http.dart' as http;
import '../../models/trackers/device_code.dart';
import '../../utils/abortable_http_request.dart';
import '../../utils/app_logger.dart';
import '../trackers/device_code_auth_service.dart';
import '../trackers/tracker_constants.dart';
import '../trackers/tracker_session.dart';
import 'trakt_constants.dart';
/// Trakt OAuth Device Authorization Grant flow (RFC 8628).
///
/// The user enters a short code at `trakt.tv/activate` (in any browser); the
/// app polls `/oauth/device/token` until the user completes the flow.
class TraktAuthService extends DeviceCodeAuthServiceBase {
TraktAuthService({super.httpClient});
@override
Future<DeviceCode> createDeviceCode() async {
final uri = Uri.parse(TraktConstants.deviceCodeUrl);
final sw = Stopwatch()..start();
final res = await sendAbortableHttpRequest(
httpClient,
'POST',
uri,
headers: TraktConstants.headers(),
body: json.encode({'client_id': TraktConstants.clientId}),
timeout: TrackerConstants.authRequestTimeout,
operation: 'Trakt device code request',
);
sw.stop();
appLogger.d('Trakt POST ${uri.path}${res.statusCode} (${sw.elapsedMilliseconds}ms)');
if (res.statusCode != 200) {
throw DeviceCodeAuthFlowException('Trakt device code request failed: HTTP ${res.statusCode}');
}
final body = json.decode(res.body) as Map<String, dynamic>;
final verificationUrl = body['verification_url'] as String;
final userCode = body['user_code'] as String;
return DeviceCode(
deviceCode: body['device_code'] as String,
userCode: userCode,
verificationUrl: verificationUrl,
verificationUrlComplete: '$verificationUrl/$userCode',
expiresIn: (body['expires_in'] as num).toInt(),
interval: (body['interval'] as num).toInt(),
);
}
@override
Future<DevicePollEvent> probe(DeviceCode code) async {
final tokenUri = Uri.parse(TraktConstants.deviceTokenUrl);
final http.Response res;
try {
res = await sendAbortableHttpRequest(
httpClient,
'POST',
tokenUri,
headers: TraktConstants.headers(),
body: json.encode({
'code': code.deviceCode,
'client_id': TraktConstants.clientId,
'client_secret': TraktConstants.clientSecret,
}),
timeout: TrackerConstants.authRequestTimeout,
operation: 'Trakt device token poll',
);
appLogger.d('Trakt POST ${tokenUri.path}${res.statusCode}');
} catch (e) {
appLogger.d('Trakt device-code poll error (transient)', error: e);
return const DevicePollPending();
}
switch (res.statusCode) {
case 200:
return DevicePollSuccess(json.decode(res.body) as Map<String, dynamic>);
case 400:
return const DevicePollPending();
case 404 || 410:
return const DevicePollExpired();
case 409 || 418:
return const DevicePollDenied();
case 429:
return const DevicePollSlowDown();
default:
appLogger.w('Trakt device-code unexpected HTTP ${res.statusCode}');
return const DevicePollPending();
}
}
@override
TrackerSession buildSession(Map<String, dynamic> tokenResponse) =>
TrackerSession.fromTokenResponse(TrackerService.trakt, tokenResponse);
}