SimpleCloudNotifier/flutter/lib/state/app_auth.dart
2024-06-25 20:49:40 +02:00

233 lines
7.1 KiB
Dart

import 'dart:convert';
import 'package:flutter/foundation.dart';
import 'package:simplecloudnotifier/api/api_client.dart';
import 'package:simplecloudnotifier/api/api_exception.dart';
import 'package:simplecloudnotifier/models/client.dart';
import 'package:simplecloudnotifier/models/user.dart';
import 'package:simplecloudnotifier/state/application_log.dart';
import 'package:simplecloudnotifier/state/globals.dart';
import 'package:simplecloudnotifier/state/token_source.dart';
class AppAuth extends ChangeNotifier implements TokenSource {
String? _clientID;
String? _userID;
String? _tokenAdmin;
String? _tokenSend;
(User, DateTime)? _user;
(Client, DateTime)? _client;
String? get userID => _userID;
String? get tokenAdmin => _tokenAdmin;
String? get tokenSend => _tokenSend;
static AppAuth? _singleton = AppAuth._internal();
factory AppAuth() {
return _singleton ?? (_singleton = AppAuth._internal());
}
AppAuth._internal() {
load();
}
bool isAuth() {
return _userID != null && _tokenAdmin != null;
}
void set(User user, Client client, String tokenAdmin, String tokenSend) {
_client = (client, DateTime.now());
_user = (user, DateTime.now());
_userID = user.userID;
_clientID = client.clientID;
_tokenAdmin = tokenAdmin;
_tokenSend = tokenSend;
notifyListeners();
}
void setClientAndClientID(Client client) {
_client = (client, DateTime.now());
_clientID = client.clientID;
notifyListeners();
}
void clear() {
_clientID = null;
_userID = null;
_tokenAdmin = null;
_tokenSend = null;
_client = null;
_user = null;
notifyListeners();
}
void load() {
//final cdat = Globals().sharedPrefs.getString('auth.cdate');
//final mdat = Globals().sharedPrefs.getString('auth.mdate');
final uid = Globals().sharedPrefs.getString('auth.userid');
final cid = Globals().sharedPrefs.getString('auth.clientid');
final toka = Globals().sharedPrefs.getString('auth.tokenadmin');
final toks = Globals().sharedPrefs.getString('auth.tokensend');
if (uid == null || toka == null || toks == null || cid == null) {
clear();
return;
}
_clientID = cid;
_userID = uid;
_tokenAdmin = toka;
_tokenSend = toks;
_client = null;
_user = null;
final userjson = Globals().sharedPrefs.getString('auth.user.obj');
final userqdate = Globals().sharedPrefs.getString('auth.user.qdate');
final clientjson = Globals().sharedPrefs.getString('auth.client.obj');
final clientqdate = Globals().sharedPrefs.getString('auth.client.qdate');
if (userjson != null && userqdate != null) {
try {
final ts = DateTime.parse(userqdate);
final obj = User.fromJson(jsonDecode(userjson) as Map<String, dynamic>);
_user = (obj, ts);
} catch (exc, trace) {
ApplicationLog.error('failed to parse user object from shared-prefs (auth.user.obj): ' + exc.toString(), additional: 'Data:\n${userjson}\nQDate:\n${userqdate}', trace: trace);
_user = null;
}
}
if (clientjson != null && clientqdate != null) {
try {
final ts = DateTime.parse(clientqdate);
final obj = Client.fromJson(jsonDecode(clientjson) as Map<String, dynamic>);
_client = (obj, ts);
} catch (exc, trace) {
ApplicationLog.error('failed to parse user object from shared-prefs (auth.client.obj): ' + exc.toString(), additional: 'Data:\n${clientjson}\nQDate:\n${clientqdate}', trace: trace);
_client = null;
}
}
notifyListeners();
}
Future<void> save() async {
if (_clientID == null || _userID == null || _tokenAdmin == null || _tokenSend == null) {
await Globals().sharedPrefs.remove('auth.userid');
await Globals().sharedPrefs.remove('auth.clientid');
await Globals().sharedPrefs.remove('auth.tokenadmin');
await Globals().sharedPrefs.remove('auth.tokensend');
await Globals().sharedPrefs.setString('auth.cdate', "");
await Globals().sharedPrefs.setString('auth.mdate', DateTime.now().toIso8601String());
await Globals().sharedPrefs.remove('auth.user.obj');
await Globals().sharedPrefs.remove('auth.user.qdate');
await Globals().sharedPrefs.remove('auth.client.obj');
await Globals().sharedPrefs.remove('auth.client.qdate');
} else {
await Globals().sharedPrefs.setString('auth.userid', _userID!);
await Globals().sharedPrefs.setString('auth.clientid', _clientID!);
await Globals().sharedPrefs.setString('auth.tokenadmin', _tokenAdmin!);
await Globals().sharedPrefs.setString('auth.tokensend', _tokenSend!);
if (Globals().sharedPrefs.getString('auth.cdate') == null) await Globals().sharedPrefs.setString('auth.cdate', DateTime.now().toIso8601String());
await Globals().sharedPrefs.setString('auth.mdate', DateTime.now().toIso8601String());
if (_user != null) {
await Globals().sharedPrefs.setString('auth.user.obj', jsonEncode(_user!.$1.toJson()));
await Globals().sharedPrefs.setString('auth.user.qdate', _user!.$2.toIso8601String());
} else {
await Globals().sharedPrefs.remove('auth.user.obj');
await Globals().sharedPrefs.remove('auth.user.qdate');
}
if (_client != null) {
await Globals().sharedPrefs.setString('auth.client.obj', jsonEncode(_client!.$1.toJson()));
await Globals().sharedPrefs.setString('auth.client.qdate', _client!.$2.toIso8601String());
} else {
await Globals().sharedPrefs.remove('auth.client.obj');
await Globals().sharedPrefs.remove('auth.client.qdate');
}
}
Globals().sharedPrefs.setString('auth.mdate', DateTime.now().toIso8601String());
}
Future<User> loadUser({bool force = false, Duration? forceIfOlder = null}) async {
if (forceIfOlder != null && _user != null && _user!.$2.difference(DateTime.now()) > forceIfOlder) {
force = true;
}
if (!force && _user != null && _user!.$1.userID == _userID) {
return _user!.$1;
}
if (_userID == null || _tokenAdmin == null) {
throw Exception('Not authenticated');
}
final user = await APIClient.getUser(this, _userID!);
_user = (user, DateTime.now());
await save();
return user;
}
User? getUserOrNull() {
return _user?.$1;
}
Future<Client?> loadClient({bool force = false, Duration? forceIfOlder = null}) async {
if (forceIfOlder != null && _client != null && _client!.$2.difference(DateTime.now()) > forceIfOlder) {
force = true;
}
if (!force && _client != null && _client!.$1.clientID == _clientID) {
return _client!.$1;
}
if (_clientID == null || _tokenAdmin == null) {
throw Exception('Not authenticated');
}
try {
final client = await APIClient.getClient(this, _clientID!);
_client = (client, DateTime.now());
await save();
return client;
} on APIException catch (_) {
_client = null;
return null;
} catch (exc) {
_client = null;
rethrow;
}
}
Client? getClientOrNull() {
return _client?.$1;
}
@override
String getToken() {
return _tokenAdmin!;
}
@override
String getUserID() {
return _userID!;
}
}