import 'dart:convert'; import 'dart:io'; import 'package:firebase_messaging/firebase_messaging.dart'; import 'package:fluffychat/components/matrix.dart'; import 'package:fluffychat/l10n/l10n.dart'; import 'package:fluffychat/utils/app_route.dart'; import 'package:fluffychat/views/chat.dart'; import 'package:flutter/foundation.dart'; import 'package:flutter/material.dart'; import 'package:flutter_local_notifications/flutter_local_notifications.dart'; import 'package:bot_toast/bot_toast.dart'; import 'package:path_provider/path_provider.dart'; import 'package:famedlysdk/famedlysdk.dart'; import 'famedlysdk_store.dart'; import '../components/matrix.dart'; abstract class FirebaseController { static final FirebaseMessaging _firebaseMessaging = FirebaseMessaging(); static final FlutterLocalNotificationsPlugin _flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin(); static BuildContext context; static const String CHANNEL_ID = 'fluffychat_push'; static const String CHANNEL_NAME = 'FluffyChat push channel'; static const String CHANNEL_DESCRIPTION = 'Push notifications for FluffyChat'; static const String APP_ID = 'chat.fluffy.fluffychat'; static const String GATEWAY_URL = 'https://janian.de:7023/'; static const String PUSHER_FORMAT = 'event_id_only'; static Future setupFirebase( MatrixState matrix, String clientName) async { final client = matrix.client; if (Platform.isIOS) iOS_Permission(); String token; try { token = await _firebaseMessaging.getToken(); } catch (_) { token = null; } if (token?.isEmpty ?? true) { final storeItem = await matrix.store.getItem('chat.fluffy.show_no_google'); final configOptionMissing = storeItem == null || storeItem.isEmpty; if (configOptionMissing || (!configOptionMissing && storeItem == '1')) { BotToast.showText( text: L10n.of(context).noGoogleServicesWarning, duration: Duration(seconds: 15), ); if (configOptionMissing) { await matrix.store.setItem('chat.fluffy.show_no_google', '0'); } } return; } final pushers = await client.requestPushers().catchError((e) { debugPrint('[Push] Unable to request pushers: ${e.toString()}'); return []; }); final currentPushers = pushers.where((pusher) => pusher.pushkey == token); if (currentPushers.length == 1 && currentPushers.first.kind == 'http' && currentPushers.first.appId == APP_ID && currentPushers.first.appDisplayName == clientName && currentPushers.first.deviceDisplayName == client.deviceName && currentPushers.first.lang == 'en' && currentPushers.first.data.url.toString() == GATEWAY_URL && currentPushers.first.data.format == PUSHER_FORMAT) { debugPrint('[Push] Pusher already set'); } else { if (currentPushers.isNotEmpty) { for (final currentPusher in currentPushers) { currentPusher.pushkey = token; currentPusher.kind = 'null'; await client.setPusher( currentPusher, append: true, ); debugPrint('[Push] Remove legacy pusher for this device'); } } await client .setPusher( Pusher( token, APP_ID, clientName, client.deviceName, 'en', PusherData( url: Uri.parse(GATEWAY_URL), format: PUSHER_FORMAT, ), kind: 'http', ), append: false, ) .catchError((e) { debugPrint('[Push] Unable to set pushers: ${e.toString()}'); return []; }); } Function goToRoom = (dynamic message) async { try { String roomId; if (message is String) { roomId = message; } else if (message is Map) { roomId = (message['data'] ?? message)['room_id']; } if (roomId?.isEmpty ?? true) throw ('Bad roomId'); await Navigator.of(context).pushAndRemoveUntil( AppRoute.defaultRoute( context, ChatView(roomId), ), (r) => r.isFirst); } catch (_) { BotToast.showText(text: 'Failed to open chat...'); debugPrint(_); } }; // initialise the plugin. app_icon needs to be a added as a drawable resource to the Android head project var initializationSettingsAndroid = AndroidInitializationSettings('notifications_icon'); var initializationSettingsIOS = IOSInitializationSettings(onDidReceiveLocalNotification: (i, a, b, c) { return null; }); var initializationSettings = InitializationSettings( initializationSettingsAndroid, initializationSettingsIOS); await _flutterLocalNotificationsPlugin.initialize(initializationSettings, onSelectNotification: goToRoom); _firebaseMessaging.configure( onMessage: _onMessage, onBackgroundMessage: _onMessage, onResume: goToRoom, onLaunch: goToRoom, ); debugPrint('[Push] Firebase initialized'); return; } static Future _onMessage(Map message) async { try { final data = message['data'] ?? message; final String roomId = data['room_id']; final String eventId = data['event_id']; final int unread = json.decode(data['counts'])['unread']; if ((roomId?.isEmpty ?? true) || (eventId?.isEmpty ?? true) || unread == 0) { await _flutterLocalNotificationsPlugin.cancelAll(); return null; } if (context != null && Matrix.of(context).activeRoomId == roomId) { debugPrint('[Push] New clearing push'); return null; } debugPrint('[Push] New message received'); final i18n = context == null ? L10n(Platform.localeName) : L10n.of(context); // Get the client Client client; var tempClient = false; try { client = Matrix.of(context).client; } catch (_) { client = null; } if (client == null) { tempClient = true; final platform = kIsWeb ? 'Web' : Platform.operatingSystem; final clientName = 'FluffyChat $platform'; client = Client(clientName); client.database = await getDatabase(client); client.connect(); debugPrint('[Push] Use a temp client'); await client.onLoginStateChanged.stream .firstWhere((l) => l == LoginState.logged) .timeout( Duration(seconds: 5), ); } // Get the room var room = client.getRoomById(roomId); if (room == null) { debugPrint('[Push] Wait for the room'); await client.onRoomUpdate.stream .where((u) => u.id == roomId) .first .timeout(Duration(seconds: 5)); debugPrint('[Push] Room found'); room = client.getRoomById(roomId); if (room == null) return null; } // Get the event var event = await client.database.getEventById(client.id, eventId, room); if (event == null) { debugPrint('[Push] Wait for the event'); final eventUpdate = await client.onEvent.stream .where((u) => u.content['event_id'] == eventId) .first .timeout(Duration(seconds: 5)); debugPrint('[Push] Event found'); event = Event.fromJson(eventUpdate.content, room); if (room == null) return null; } // Count all unread events var unreadEvents = 0; client.rooms .forEach((Room room) => unreadEvents += room.notificationCount); // Calculate title final title = unread > 1 ? i18n.unreadMessagesInChats( unreadEvents.toString(), unread.toString()) : i18n.unreadMessages(unreadEvents.toString()); // Calculate the body final body = event.getLocalizedBody( i18n, withSenderNamePrefix: true, hideReply: true, ); // The person object for the android message style notification final person = Person( name: room.getLocalizedDisplayname(i18n), icon: room.avatar == null ? null : BitmapFilePathAndroidIcon( await downloadAndSaveAvatar( room.avatar, client, width: 126, height: 126, ), ), ); // Show notification var androidPlatformChannelSpecifics = AndroidNotificationDetails( CHANNEL_ID, CHANNEL_NAME, CHANNEL_DESCRIPTION, styleInformation: MessagingStyleInformation( person, conversationTitle: title, messages: [ Message( body, event.originServerTs, person, ) ], ), importance: Importance.Max, priority: Priority.High, ticker: i18n.newMessageInFluffyChat); var iOSPlatformChannelSpecifics = IOSNotificationDetails(); var platformChannelSpecifics = NotificationDetails( androidPlatformChannelSpecifics, iOSPlatformChannelSpecifics); await _flutterLocalNotificationsPlugin.show( 0, room.getLocalizedDisplayname(i18n), body, platformChannelSpecifics, payload: roomId); if (tempClient) { await client.dispose(); client = null; debugPrint('[Push] Temp client disposed'); } } catch (exception) { debugPrint('[Push] Error while processing notification: ' + exception.toString()); await _showDefaultNotification(message); } return null; } static Future _showDefaultNotification( Map message) async { try { var flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin(); // Init notifications framework var initializationSettingsAndroid = AndroidInitializationSettings('notifications_icon'); var initializationSettingsIOS = IOSInitializationSettings(); var initializationSettings = InitializationSettings( initializationSettingsAndroid, initializationSettingsIOS); await flutterLocalNotificationsPlugin.initialize(initializationSettings); final l10n = L10n(Platform.localeName); // Notification data and matrix data Map data = message['data'] ?? message; String eventID = data['event_id']; String roomID = data['room_id']; final int unread = data.containsKey('counts') ? json.decode(data['counts'])['unread'] : 1; await flutterLocalNotificationsPlugin.cancelAll(); if (unread == 0 || roomID == null || eventID == null) { return; } // Display notification var androidPlatformChannelSpecifics = AndroidNotificationDetails( CHANNEL_ID, CHANNEL_NAME, CHANNEL_DESCRIPTION, importance: Importance.Max, priority: Priority.High); var iOSPlatformChannelSpecifics = IOSNotificationDetails(); var platformChannelSpecifics = NotificationDetails( androidPlatformChannelSpecifics, iOSPlatformChannelSpecifics); final title = l10n.unreadChats(unread.toString()); await flutterLocalNotificationsPlugin.show( 1, title, l10n.openAppToReadMessages, platformChannelSpecifics, payload: roomID); } catch (exception) { debugPrint('[Push] Error while processing background notification: ' + exception.toString()); } return Future.value(); } static Future downloadAndSaveAvatar(Uri content, Client client, {int width, int height}) async { final thumbnail = width == null && height == null ? false : true; final tempDirectory = (await getTemporaryDirectory()).path; final prefix = thumbnail ? 'thumbnail' : ''; var file = File('$tempDirectory/${prefix}_${content.toString().split("/").last}'); if (!file.existsSync()) { final url = thumbnail ? content.getThumbnail(client, width: width, height: height) : content.getDownloadLink(client); var request = await HttpClient().getUrl(Uri.parse(url)); var response = await request.close(); var bytes = await consolidateHttpClientResponseBytes(response); await file.writeAsBytes(bytes); } return file.path; } static void iOS_Permission() { _firebaseMessaging.requestNotificationPermissions( IosNotificationSettings(sound: true, badge: true, alert: true)); _firebaseMessaging.onIosSettingsRegistered .listen((IosNotificationSettings settings) { debugPrint('Settings registered: $settings'); }); } }