mirror of
https://github.com/immich-app/immich.git
synced 2024-11-15 09:59:00 -07:00
598 lines
19 KiB
Dart
598 lines
19 KiB
Dart
import 'dart:async';
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import 'dart:developer';
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import 'dart:io';
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import 'dart:isolate';
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import 'dart:ui' show DartPluginRegistrant, IsolateNameServer, PluginUtilities;
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import 'package:cancellation_token_http/http.dart';
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import 'package:collection/collection.dart';
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import 'package:easy_localization/easy_localization.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter/widgets.dart';
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import 'package:hooks_riverpod/hooks_riverpod.dart';
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import 'package:immich_mobile/main.dart';
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import 'package:immich_mobile/services/localization.service.dart';
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import 'package:immich_mobile/entities/backup_album.entity.dart';
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import 'package:immich_mobile/models/backup/current_upload_asset.model.dart';
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import 'package:immich_mobile/models/backup/error_upload_asset.model.dart';
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import 'package:immich_mobile/services/backup.service.dart';
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import 'package:immich_mobile/services/app_settings.service.dart';
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import 'package:immich_mobile/entities/store.entity.dart';
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import 'package:immich_mobile/services/api.service.dart';
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import 'package:immich_mobile/utils/backup_progress.dart';
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import 'package:immich_mobile/utils/diff.dart';
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import 'package:isar/isar.dart';
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import 'package:path_provider_ios/path_provider_ios.dart';
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import 'package:photo_manager/photo_manager.dart';
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final backgroundServiceProvider = Provider(
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(ref) => BackgroundService(),
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);
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/// Background backup service
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class BackgroundService {
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static const String _portNameLock = "immichLock";
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static const MethodChannel _foregroundChannel =
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MethodChannel('immich/foregroundChannel');
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static const MethodChannel _backgroundChannel =
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MethodChannel('immich/backgroundChannel');
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static const notifyInterval = Duration(milliseconds: 400);
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bool _isBackgroundInitialized = false;
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CancellationToken? _cancellationToken;
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bool _canceledBySystem = false;
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int _wantsLockTime = 0;
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bool _hasLock = false;
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SendPort? _waitingIsolate;
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ReceivePort? _rp;
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bool _errorGracePeriodExceeded = true;
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int _uploadedAssetsCount = 0;
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int _assetsToUploadCount = 0;
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String _lastPrintedDetailContent = "";
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String? _lastPrintedDetailTitle;
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late final ThrottleProgressUpdate _throttledNotifiy =
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ThrottleProgressUpdate(_updateProgress, notifyInterval);
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late final ThrottleProgressUpdate _throttledDetailNotify =
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ThrottleProgressUpdate(_updateDetailProgress, notifyInterval);
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bool get isBackgroundInitialized {
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return _isBackgroundInitialized;
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}
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/// Ensures that the background service is enqueued if enabled in settings
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Future<bool> resumeServiceIfEnabled() async {
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return await isBackgroundBackupEnabled() && await enableService();
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}
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/// Enqueues the background service
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Future<bool> enableService({bool immediate = false}) async {
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try {
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final callback = PluginUtilities.getCallbackHandle(_nativeEntry)!;
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final String title =
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"backup_background_service_default_notification".tr();
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final bool ok = await _foregroundChannel
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.invokeMethod('enable', [callback.toRawHandle(), title, immediate]);
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return ok;
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} catch (error) {
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return false;
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}
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}
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/// Configures the background service
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Future<bool> configureService({
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bool requireUnmetered = true,
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bool requireCharging = false,
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int triggerUpdateDelay = 5000,
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int triggerMaxDelay = 50000,
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}) async {
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try {
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final bool ok = await _foregroundChannel.invokeMethod(
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'configure',
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[
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requireUnmetered,
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requireCharging,
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triggerUpdateDelay,
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triggerMaxDelay,
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],
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);
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return ok;
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} catch (error) {
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return false;
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}
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}
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/// Cancels the background service (if currently running) and removes it from work queue
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Future<bool> disableService() async {
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try {
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final ok = await _foregroundChannel.invokeMethod('disable');
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return ok;
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} catch (error) {
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return false;
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}
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}
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/// Returns `true` if the background service is enabled
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Future<bool> isBackgroundBackupEnabled() async {
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try {
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return await _foregroundChannel.invokeMethod("isEnabled");
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} catch (error) {
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return false;
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}
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}
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/// Returns `true` if battery optimizations are disabled
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Future<bool> isIgnoringBatteryOptimizations() async {
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// iOS does not need battery optimizations enabled
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if (Platform.isIOS) {
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return true;
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}
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try {
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return await _foregroundChannel
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.invokeMethod('isIgnoringBatteryOptimizations');
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} catch (error) {
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return false;
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}
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}
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// Yet to be implemented
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Future<Uint8List?> digestFile(String path) {
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return _foregroundChannel.invokeMethod<Uint8List>("digestFile", [path]);
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}
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Future<List<Uint8List?>?> digestFiles(List<String> paths) {
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return _foregroundChannel.invokeListMethod<Uint8List?>(
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"digestFiles",
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paths,
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);
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}
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/// Updates the notification shown by the background service
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Future<bool?> _updateNotification({
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String? title,
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String? content,
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int progress = 0,
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int max = 0,
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bool indeterminate = false,
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bool isDetail = false,
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bool onlyIfFG = false,
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}) async {
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try {
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if (_isBackgroundInitialized) {
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return _backgroundChannel.invokeMethod<bool>(
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'updateNotification',
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[title, content, progress, max, indeterminate, isDetail, onlyIfFG],
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);
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}
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} catch (error) {
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debugPrint("[_updateNotification] failed to communicate with plugin");
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}
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return false;
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}
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/// Shows a new priority notification
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Future<bool> _showErrorNotification({
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required String title,
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String? content,
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String? individualTag,
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}) async {
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try {
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if (_isBackgroundInitialized && _errorGracePeriodExceeded) {
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return await _backgroundChannel
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.invokeMethod('showError', [title, content, individualTag]);
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}
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} catch (error) {
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debugPrint("[_showErrorNotification] failed to communicate with plugin");
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}
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return false;
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}
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Future<bool> _clearErrorNotifications() async {
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try {
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if (_isBackgroundInitialized) {
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return await _backgroundChannel.invokeMethod('clearErrorNotifications');
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}
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} catch (error) {
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debugPrint(
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"[_clearErrorNotifications] failed to communicate with plugin",
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);
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}
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return false;
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}
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/// await to ensure this thread (foreground or background) has exclusive access
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Future<bool> acquireLock() async {
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if (_hasLock) {
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debugPrint("WARNING: [acquireLock] called more than once");
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return true;
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}
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final int lockTime = Timeline.now;
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_wantsLockTime = lockTime;
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final ReceivePort rp = ReceivePort(_portNameLock);
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_rp = rp;
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final SendPort sp = rp.sendPort;
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while (!IsolateNameServer.registerPortWithName(sp, _portNameLock)) {
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try {
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await _checkLockReleasedWithHeartbeat(lockTime);
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} catch (error) {
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return false;
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}
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if (_wantsLockTime != lockTime) {
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return false;
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}
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}
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_hasLock = true;
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rp.listen(_heartbeatListener);
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return true;
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}
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Future<void> _checkLockReleasedWithHeartbeat(final int lockTime) async {
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SendPort? other = IsolateNameServer.lookupPortByName(_portNameLock);
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if (other != null) {
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final ReceivePort tempRp = ReceivePort();
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final SendPort tempSp = tempRp.sendPort;
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final bs = tempRp.asBroadcastStream();
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while (_wantsLockTime == lockTime) {
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other.send(tempSp);
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final dynamic answer = await bs.first
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.timeout(const Duration(seconds: 3), onTimeout: () => null);
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if (_wantsLockTime != lockTime) {
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break;
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}
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if (answer == null) {
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// other isolate failed to answer, assuming it exited without releasing the lock
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if (other == IsolateNameServer.lookupPortByName(_portNameLock)) {
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IsolateNameServer.removePortNameMapping(_portNameLock);
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}
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break;
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} else if (answer == true) {
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// other isolate released the lock
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break;
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} else if (answer == false) {
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// other isolate is still active
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}
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final dynamic isFinished = await bs.first
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.timeout(const Duration(seconds: 3), onTimeout: () => false);
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if (isFinished == true) {
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break;
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}
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}
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tempRp.close();
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}
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}
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void _heartbeatListener(dynamic msg) {
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if (msg is SendPort) {
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_waitingIsolate = msg;
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msg.send(false);
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}
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}
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/// releases the exclusive access lock
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void releaseLock() {
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_wantsLockTime = 0;
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if (_hasLock) {
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IsolateNameServer.removePortNameMapping(_portNameLock);
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_waitingIsolate?.send(true);
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_waitingIsolate = null;
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_hasLock = false;
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}
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_rp?.close();
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_rp = null;
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}
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void _setupBackgroundCallHandler() {
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_backgroundChannel.setMethodCallHandler(_callHandler);
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_isBackgroundInitialized = true;
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_backgroundChannel.invokeMethod('initialized');
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}
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Future<bool> _callHandler(MethodCall call) async {
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DartPluginRegistrant.ensureInitialized();
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if (Platform.isIOS) {
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// NOTE: I'm not sure this is strictly necessary anymore, but
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// out of an abundance of caution, we will keep it in until someone
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// can say for sure
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PathProviderIOS.registerWith();
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}
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switch (call.method) {
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case "backgroundProcessing":
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case "onAssetsChanged":
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try {
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_clearErrorNotifications();
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// iOS should time out after some threshhold so it doesn't wait
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// indefinitely and can run later
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// Android is fine to wait here until the lock releases
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final waitForLock = Platform.isIOS
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? acquireLock().timeout(
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const Duration(seconds: 5),
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onTimeout: () => false,
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)
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: acquireLock();
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final bool hasAccess = await waitForLock;
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if (!hasAccess) {
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debugPrint("[_callHandler] could not acquire lock, exiting");
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return false;
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}
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final translationsOk = await loadTranslations();
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if (!translationsOk) {
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debugPrint("[_callHandler] could not load translations");
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}
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final bool ok = await _onAssetsChanged();
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return ok;
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} catch (error) {
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debugPrint(error.toString());
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return false;
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} finally {
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releaseLock();
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}
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case "systemStop":
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_canceledBySystem = true;
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_cancellationToken?.cancel();
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return true;
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default:
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debugPrint("Unknown method ${call.method}");
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return false;
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}
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}
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Future<bool> _onAssetsChanged() async {
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final Isar db = await loadDb();
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ApiService apiService = ApiService();
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apiService.setAccessToken(Store.get(StoreKey.accessToken));
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AppSettingsService settingService = AppSettingsService();
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BackupService backupService = BackupService(apiService, db, settingService);
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AppSettingsService settingsService = AppSettingsService();
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final selectedAlbums = backupService.selectedAlbumsQuery().findAllSync();
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final excludedAlbums = backupService.excludedAlbumsQuery().findAllSync();
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if (selectedAlbums.isEmpty) {
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return true;
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}
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await PhotoManager.setIgnorePermissionCheck(true);
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do {
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final bool backupOk = await _runBackup(
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backupService,
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settingsService,
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selectedAlbums,
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excludedAlbums,
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);
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if (backupOk) {
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await Store.delete(StoreKey.backupFailedSince);
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final backupAlbums = [...selectedAlbums, ...excludedAlbums];
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backupAlbums.sortBy((e) => e.id);
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db.writeTxnSync(() {
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final dbAlbums = db.backupAlbums.where().sortById().findAllSync();
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final List<int> toDelete = [];
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final List<BackupAlbum> toUpsert = [];
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// stores the most recent `lastBackup` per album but always keeps the `selection` from the most recent DB state
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diffSortedListsSync(
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dbAlbums,
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backupAlbums,
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compare: (BackupAlbum a, BackupAlbum b) => a.id.compareTo(b.id),
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both: (BackupAlbum a, BackupAlbum b) {
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a.lastBackup = a.lastBackup.isAfter(b.lastBackup)
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? a.lastBackup
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: b.lastBackup;
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toUpsert.add(a);
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return true;
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},
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onlyFirst: (BackupAlbum a) => toUpsert.add(a),
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onlySecond: (BackupAlbum b) => toDelete.add(b.isarId),
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);
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db.backupAlbums.deleteAllSync(toDelete);
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db.backupAlbums.putAllSync(toUpsert);
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});
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} else if (Store.tryGet(StoreKey.backupFailedSince) == null) {
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Store.put(StoreKey.backupFailedSince, DateTime.now());
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return false;
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}
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// Android should check for new assets added while performing backup
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} while (Platform.isAndroid &&
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true ==
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await _backgroundChannel.invokeMethod<bool>("hasContentChanged"));
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return true;
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}
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Future<bool> _runBackup(
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BackupService backupService,
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AppSettingsService settingsService,
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List<BackupAlbum> selectedAlbums,
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List<BackupAlbum> excludedAlbums,
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) async {
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_errorGracePeriodExceeded = _isErrorGracePeriodExceeded(settingsService);
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final bool notifyTotalProgress = settingsService
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.getSetting<bool>(AppSettingsEnum.backgroundBackupTotalProgress);
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final bool notifySingleProgress = settingsService
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.getSetting<bool>(AppSettingsEnum.backgroundBackupSingleProgress);
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if (_canceledBySystem) {
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return false;
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}
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List<AssetEntity> toUpload = await backupService.buildUploadCandidates(
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selectedAlbums,
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excludedAlbums,
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);
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try {
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toUpload = await backupService.removeAlreadyUploadedAssets(toUpload);
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} catch (e) {
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_showErrorNotification(
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title: "backup_background_service_error_title".tr(),
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content: "backup_background_service_connection_failed_message".tr(),
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);
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return false;
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}
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if (_canceledBySystem) {
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return false;
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}
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if (toUpload.isEmpty) {
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return true;
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}
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_assetsToUploadCount = toUpload.length;
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_uploadedAssetsCount = 0;
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_updateNotification(
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title: "backup_background_service_in_progress_notification".tr(),
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content: notifyTotalProgress
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? formatAssetBackupProgress(
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_uploadedAssetsCount,
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_assetsToUploadCount,
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)
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: null,
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progress: 0,
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max: notifyTotalProgress ? _assetsToUploadCount : 0,
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indeterminate: !notifyTotalProgress,
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onlyIfFG: !notifyTotalProgress,
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);
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_cancellationToken = CancellationToken();
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final pmProgressHandler = Platform.isIOS ? PMProgressHandler() : null;
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final bool ok = await backupService.backupAsset(
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toUpload,
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_cancellationToken!,
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pmProgressHandler,
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notifyTotalProgress ? _onAssetUploaded : (assetId, deviceId, isDup) {},
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notifySingleProgress ? _onProgress : (sent, total) {},
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notifySingleProgress ? _onSetCurrentBackupAsset : (asset) {},
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_onBackupError,
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sortAssets: true,
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);
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if (!ok && !_cancellationToken!.isCancelled) {
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_showErrorNotification(
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title: "backup_background_service_error_title".tr(),
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content: "backup_background_service_backup_failed_message".tr(),
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);
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}
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return ok;
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}
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void _onAssetUploaded(String deviceAssetId, String deviceId, bool isDup) {
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_uploadedAssetsCount++;
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_throttledNotifiy();
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}
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void _onProgress(int sent, int total) {
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_throttledDetailNotify(progress: sent, total: total);
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}
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void _updateDetailProgress(String? title, int progress, int total) {
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final String msg =
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total > 0 ? humanReadableBytesProgress(progress, total) : "";
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// only update if message actually differs (to stop many useless notification updates on large assets or slow connections)
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if (msg != _lastPrintedDetailContent || _lastPrintedDetailTitle != title) {
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_lastPrintedDetailContent = msg;
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_lastPrintedDetailTitle = title;
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_updateNotification(
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progress: total > 0 ? (progress * 1000) ~/ total : 0,
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max: 1000,
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isDetail: true,
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title: title,
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content: msg,
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);
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}
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}
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void _updateProgress(String? title, int progress, int total) {
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_updateNotification(
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progress: _uploadedAssetsCount,
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max: _assetsToUploadCount,
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title: title,
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content: formatAssetBackupProgress(
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_uploadedAssetsCount,
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_assetsToUploadCount,
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),
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);
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}
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void _onBackupError(ErrorUploadAsset errorAssetInfo) {
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_showErrorNotification(
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title: "backup_background_service_upload_failure_notification"
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.tr(args: [errorAssetInfo.fileName]),
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individualTag: errorAssetInfo.id,
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);
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}
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void _onSetCurrentBackupAsset(CurrentUploadAsset currentUploadAsset) {
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_throttledDetailNotify.title =
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"backup_background_service_current_upload_notification"
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.tr(args: [currentUploadAsset.fileName]);
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_throttledDetailNotify.progress = 0;
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_throttledDetailNotify.total = 0;
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}
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bool _isErrorGracePeriodExceeded(AppSettingsService appSettingsService) {
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final int value = appSettingsService
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.getSetting(AppSettingsEnum.uploadErrorNotificationGracePeriod);
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if (value == 0) {
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return true;
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} else if (value == 5) {
|
|
return false;
|
|
}
|
|
final DateTime? failedSince = Store.tryGet(StoreKey.backupFailedSince);
|
|
if (failedSince == null) {
|
|
return false;
|
|
}
|
|
final Duration duration = DateTime.now().difference(failedSince);
|
|
if (value == 1) {
|
|
return duration > const Duration(minutes: 30);
|
|
} else if (value == 2) {
|
|
return duration > const Duration(hours: 2);
|
|
} else if (value == 3) {
|
|
return duration > const Duration(hours: 8);
|
|
} else if (value == 4) {
|
|
return duration > const Duration(hours: 24);
|
|
}
|
|
assert(false, "Invalid value");
|
|
return true;
|
|
}
|
|
|
|
Future<DateTime?> getIOSBackupLastRun(IosBackgroundTask task) async {
|
|
if (!Platform.isIOS) {
|
|
return null;
|
|
}
|
|
// Seconds since last run
|
|
final double? lastRun = task == IosBackgroundTask.fetch
|
|
? await _foregroundChannel.invokeMethod('lastBackgroundFetchTime')
|
|
: await _foregroundChannel.invokeMethod('lastBackgroundProcessingTime');
|
|
if (lastRun == null) {
|
|
return null;
|
|
}
|
|
final time = DateTime.fromMillisecondsSinceEpoch(lastRun.toInt() * 1000);
|
|
return time;
|
|
}
|
|
|
|
Future<int> getIOSBackupNumberOfProcesses() async {
|
|
if (!Platform.isIOS) {
|
|
return 0;
|
|
}
|
|
return await _foregroundChannel.invokeMethod('numberOfBackgroundProcesses');
|
|
}
|
|
|
|
Future<bool> getIOSBackgroundAppRefreshEnabled() async {
|
|
if (!Platform.isIOS) {
|
|
return false;
|
|
}
|
|
return await _foregroundChannel.invokeMethod('backgroundAppRefreshEnabled');
|
|
}
|
|
}
|
|
|
|
enum IosBackgroundTask { fetch, processing }
|
|
|
|
/// entry point called by Kotlin/Java code; needs to be a top-level function
|
|
@pragma('vm:entry-point')
|
|
void _nativeEntry() {
|
|
WidgetsFlutterBinding.ensureInitialized();
|
|
DartPluginRegistrant.ensureInitialized();
|
|
BackgroundService backgroundService = BackgroundService();
|
|
backgroundService._setupBackgroundCallHandler();
|
|
}
|