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				https://github.com/ImranR98/Obtainium.git
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			862 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			Dart
		
	
	
	
	
	
			
		
		
	
	
			862 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			Dart
		
	
	
	
	
	
// Manages state related to the list of Apps tracked by Obtainium,
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// Exposes related functions such as those used to add, remove, download, and install Apps.
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import 'dart:async';
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import 'dart:convert';
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import 'dart:io';
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import 'package:device_info_plus/device_info_plus.dart';
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import 'package:easy_localization/easy_localization.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:install_plugin_v2/install_plugin_v2.dart';
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import 'package:installed_apps/app_info.dart';
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import 'package:installed_apps/installed_apps.dart';
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import 'package:obtainium/custom_errors.dart';
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import 'package:obtainium/providers/logs_provider.dart';
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import 'package:obtainium/providers/notifications_provider.dart';
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import 'package:obtainium/providers/settings_provider.dart';
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import 'package:package_archive_info/package_archive_info.dart';
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import 'package:provider/provider.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:flutter_fgbg/flutter_fgbg.dart';
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import 'package:obtainium/providers/source_provider.dart';
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import 'package:http/http.dart';
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class AppInMemory {
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  late App app;
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  double? downloadProgress;
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  AppInfo? installedInfo;
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  AppInMemory(this.app, this.downloadProgress, this.installedInfo);
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}
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class DownloadedApk {
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  String appId;
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  File file;
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  DownloadedApk(this.appId, this.file);
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}
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List<String> generateStandardVersionRegExStrings() {
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  // TODO: Look into RegEx for non-Latin characters / non-Arabic numerals
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  var basics = [
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    '[0-9]+',
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    '[0-9]+\\.[0-9]+',
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    '[0-9]+\\.[0-9]+\\.[0-9]+',
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    '[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+'
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  ];
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  var preSuffixes = ['-', '\\+'];
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  var suffixes = ['alpha', 'beta', 'ose'];
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  var finals = ['\\+[0-9]+', '[0-9]+'];
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  List<String> results = [];
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  for (var b in basics) {
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    results.add(b);
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    for (var p in preSuffixes) {
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      for (var s in suffixes) {
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        results.add('$b$s');
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        results.add('$b$p$s');
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        for (var f in finals) {
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          results.add('$b$s$f');
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          results.add('$b$p$s$f');
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        }
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      }
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    }
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  }
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  return results;
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}
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List<String> standardVersionRegExStrings =
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    generateStandardVersionRegExStrings();
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class AppsProvider with ChangeNotifier {
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  // In memory App state (should always be kept in sync with local storage versions)
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  Map<String, AppInMemory> apps = {};
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  bool loadingApps = false;
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  bool gettingUpdates = false;
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  LogsProvider logs = LogsProvider();
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  // Variables to keep track of the app foreground status (installs can't run in the background)
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  bool isForeground = true;
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  late Stream<FGBGType>? foregroundStream;
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  late StreamSubscription<FGBGType>? foregroundSubscription;
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  AppsProvider() {
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    // Subscribe to changes in the app foreground status
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    foregroundStream = FGBGEvents.stream.asBroadcastStream();
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    foregroundSubscription = foregroundStream?.listen((event) async {
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      isForeground = event == FGBGType.foreground;
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      if (isForeground) await loadApps();
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    });
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    () async {
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      // Load Apps into memory (in background, this is done later instead of in the constructor)
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      await loadApps();
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      // Delete existing APKs
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      (await getExternalStorageDirectory())
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          ?.listSync()
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          .where((element) =>
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              element.path.endsWith('.apk') ||
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              element.path.endsWith('.apk.part'))
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          .forEach((apk) {
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        apk.delete();
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      });
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    }();
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  }
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  downloadFile(String url, String fileName, Function? onProgress,
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      {bool useExisting = true}) async {
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    var destDir = (await getExternalStorageDirectory())!.path;
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    StreamedResponse response =
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        await Client().send(Request('GET', Uri.parse(url)));
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    File downloadedFile = File('$destDir/$fileName');
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    if (!(downloadedFile.existsSync() && useExisting)) {
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      File tempDownloadedFile = File('${downloadedFile.path}.part');
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      if (tempDownloadedFile.existsSync()) {
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        tempDownloadedFile.deleteSync();
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      }
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      var length = response.contentLength;
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      var received = 0;
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      double? progress;
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      var sink = tempDownloadedFile.openWrite();
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      await response.stream.map((s) {
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        received += s.length;
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        progress = (length != null ? received / length * 100 : 30);
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        if (onProgress != null) {
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          onProgress(progress);
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        }
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        return s;
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      }).pipe(sink);
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      await sink.close();
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      progress = null;
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      if (onProgress != null) {
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        onProgress(progress);
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      }
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      if (response.statusCode != 200) {
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        tempDownloadedFile.deleteSync();
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        throw response.reasonPhrase ?? tr('unexpectedError');
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      }
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      tempDownloadedFile.renameSync(downloadedFile.path);
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    }
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    return downloadedFile;
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  }
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  Future<DownloadedApk> downloadApp(App app, BuildContext? context) async {
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    var fileName =
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        '${app.id}-${app.latestVersion}-${app.preferredApkIndex}.apk';
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    String downloadUrl = await SourceProvider()
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        .getSource(app.url)
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        .apkUrlPrefetchModifier(app.apkUrls[app.preferredApkIndex]);
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    NotificationsProvider? notificationsProvider =
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        context?.read<NotificationsProvider>();
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    var notif = DownloadNotification(app.name, 100);
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    notificationsProvider?.cancel(notif.id);
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    int? prevProg;
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    File downloadedFile =
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        await downloadFile(downloadUrl, fileName, (double? progress) {
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      int? prog = progress?.ceil();
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      if (apps[app.id] != null) {
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        apps[app.id]!.downloadProgress = progress;
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        notifyListeners();
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      }
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      notif = DownloadNotification(app.name, prog ?? 100);
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      if (prog != null && prevProg != prog) {
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        notificationsProvider?.notify(notif);
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      }
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      prevProg = prog;
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    });
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    notificationsProvider?.cancel(notif.id);
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    // Delete older versions of the APK if any
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    for (var file in downloadedFile.parent.listSync()) {
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      var fn = file.path.split('/').last;
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      if (fn.startsWith('${app.id}-') &&
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          fn.endsWith('.apk') &&
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          fn != fileName) {
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        file.delete();
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      }
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    }
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    // If the APK package ID is different from the App ID, it is either new (using a placeholder ID) or the ID has changed
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    // The former case should be handled (give the App its real ID), the latter is a security issue
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    var newInfo = await PackageArchiveInfo.fromPath(downloadedFile.path);
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    if (app.id != newInfo.packageName) {
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      if (apps[app.id] != null && !SourceProvider().isTempId(app.id)) {
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        throw IDChangedError();
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      }
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      var originalAppId = app.id;
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      app.id = newInfo.packageName;
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      downloadedFile = downloadedFile.renameSync(
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          '${downloadedFile.parent.path}/${app.id}-${app.latestVersion}-${app.preferredApkIndex}.apk');
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      if (apps[originalAppId] != null) {
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        await removeApps([originalAppId]);
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        await saveApps([app]);
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      }
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    }
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    return DownloadedApk(app.id, downloadedFile);
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  }
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  bool areDownloadsRunning() => apps.values
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      .where((element) => element.downloadProgress != null)
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      .isNotEmpty;
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  Future<bool> canInstallSilently(App app) async {
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    return false;
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    // TODO: Uncomment the below if silent updates are ever figured out
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    // // NOTE: This is unreliable - try to get from OS in the future
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    // if (app.apkUrls.length > 1) {
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    //    return false;
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    // }
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    // var osInfo = await DeviceInfoPlugin().androidInfo;
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    // return app.installedVersion != null &&
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    //     osInfo.version.sdkInt >= 30 &&
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    //     osInfo.version.release.compareTo('12') >= 0;
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  }
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  Future<void> waitForUserToReturnToForeground(BuildContext context) async {
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    NotificationsProvider notificationsProvider =
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        context.read<NotificationsProvider>();
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    if (!isForeground) {
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      await notificationsProvider.notify(completeInstallationNotification,
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          cancelExisting: true);
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      while (await FGBGEvents.stream.first != FGBGType.foreground) {}
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      await notificationsProvider.cancel(completeInstallationNotification.id);
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    }
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  }
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  Future<bool> canDowngradeApps() async {
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    try {
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      await InstalledApps.getAppInfo('com.berdik.letmedowngrade');
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      return true;
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    } catch (e) {
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      return false;
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    }
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  }
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  // Unfortunately this 'await' does not actually wait for the APK to finish installing
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  // So we only know that the install prompt was shown, but the user could still cancel w/o us knowing
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  // If appropriate criteria are met, the update (never a fresh install) happens silently  in the background
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  // But even then, we don't know if it actually succeeded
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  Future<void> installApk(DownloadedApk file) async {
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    var newInfo = await PackageArchiveInfo.fromPath(file.file.path);
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    AppInfo? appInfo;
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    try {
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      appInfo = await InstalledApps.getAppInfo(apps[file.appId]!.app.id);
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    } catch (e) {
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      // OK
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    }
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    if (appInfo != null &&
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        int.parse(newInfo.buildNumber) < appInfo.versionCode! &&
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        !(await canDowngradeApps())) {
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      throw DowngradeError();
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    }
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    if (appInfo == null ||
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        int.parse(newInfo.buildNumber) > appInfo.versionCode!) {
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      await InstallPlugin.installApk(file.file.path, 'dev.imranr.obtainium');
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    }
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    apps[file.appId]!.app.installedVersion =
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        apps[file.appId]!.app.latestVersion;
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    // Don't correct install status as installation may not be done yet
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    await saveApps([apps[file.appId]!.app],
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        attemptToCorrectInstallStatus: false);
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  }
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  Future<String?> confirmApkUrl(App app, BuildContext? context) async {
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    // If the App has more than one APK, the user should pick one (if context provided)
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    String? apkUrl = app.apkUrls[app.preferredApkIndex];
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    // get device supported architecture
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    List<String> archs = (await DeviceInfoPlugin().androidInfo).supportedAbis;
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    if (app.apkUrls.length > 1 && context != null) {
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      apkUrl = await showDialog(
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          context: context,
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          builder: (BuildContext ctx) {
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            return APKPicker(
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              app: app,
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              initVal: apkUrl,
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              archs: archs,
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            );
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          });
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    }
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    getHost(String url) {
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      var temp = Uri.parse(url).host.split('.');
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      return temp.sublist(temp.length - 2).join('.');
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    }
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    // If the picked APK comes from an origin different from the source, get user confirmation (if context provided)
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    if (apkUrl != null &&
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        getHost(apkUrl) != getHost(app.url) &&
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        context != null) {
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      if (await showDialog(
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              context: context,
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              builder: (BuildContext ctx) {
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                return APKOriginWarningDialog(
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                    sourceUrl: app.url, apkUrl: apkUrl!);
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              }) !=
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          true) {
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        apkUrl = null;
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      }
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    }
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    return apkUrl;
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  }
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  // Given a list of AppIds, uses stored info about the apps to download APKs and install them
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  // If the APKs can be installed silently, they are
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  // If no BuildContext is provided, apps that require user interaction are ignored
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  // If user input is needed and the App is in the background, a notification is sent to get the user's attention
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  // Returns an array of Ids for Apps that were successfully downloaded, regardless of installation result
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  Future<List<String>> downloadAndInstallLatestApps(
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      List<String> appIds, BuildContext? context) async {
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    List<String> appsToInstall = [];
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    List<String> trackOnlyAppsToUpdate = [];
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    // For all specified Apps, filter out those for which:
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    // 1. A URL cannot be picked
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    // 2. That cannot be installed silently (IF no buildContext was given for interactive install)
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    for (var id in appIds) {
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      if (apps[id] == null) {
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        throw ObtainiumError(tr('appNotFound'));
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      }
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      String? apkUrl;
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      var trackOnly = apps[id]!.app.additionalSettings['trackOnly'] == 'true';
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      if (!trackOnly) {
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        apkUrl = await confirmApkUrl(apps[id]!.app, context);
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      }
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      if (apkUrl != null) {
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        int urlInd = apps[id]!.app.apkUrls.indexOf(apkUrl);
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        if (urlInd != apps[id]!.app.preferredApkIndex) {
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          apps[id]!.app.preferredApkIndex = urlInd;
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          await saveApps([apps[id]!.app]);
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        }
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        if (context != null || await canInstallSilently(apps[id]!.app)) {
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          appsToInstall.add(id);
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        }
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      }
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      if (trackOnly) {
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        trackOnlyAppsToUpdate.add(id);
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      }
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    }
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    // Mark all specified track-only apps as latest
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    saveApps(trackOnlyAppsToUpdate.map((e) {
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      var a = apps[e]!.app;
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      a.installedVersion = a.latestVersion;
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      return a;
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    }).toList());
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    // Download APKs for all Apps to be installed
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    MultiAppMultiError errors = MultiAppMultiError();
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    List<DownloadedApk?> downloadedFiles =
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        await Future.wait(appsToInstall.map((id) async {
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      try {
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        return await downloadApp(apps[id]!.app, context);
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      } catch (e) {
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        errors.add(id, e.toString());
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      }
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      return null;
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    }));
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    downloadedFiles =
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        downloadedFiles.where((element) => element != null).toList();
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    // Separate the Apps to install into silent and regular lists
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    List<DownloadedApk> silentUpdates = [];
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    List<DownloadedApk> regularInstalls = [];
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    for (var f in downloadedFiles) {
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      bool willBeSilent = await canInstallSilently(apps[f!.appId]!.app);
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      if (willBeSilent) {
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        silentUpdates.add(f);
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      } else {
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        regularInstalls.add(f);
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      }
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    }
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    // Move everything to the regular install list (since silent updates don't currently work)
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    // TODO: Remove this when silent updates work
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    regularInstalls.addAll(silentUpdates);
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    // If Obtainium is being installed, it should be the last one
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    List<DownloadedApk> moveObtainiumToStart(List<DownloadedApk> items) {
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      DownloadedApk? temp;
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      items.removeWhere((element) {
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        bool res =
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            element.appId == obtainiumId || element.appId == obtainiumTempId;
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        if (res) {
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          temp = element;
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        }
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        return res;
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      });
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      if (temp != null) {
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        items = [temp!, ...items];
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      }
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      return items;
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    }
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    silentUpdates = moveObtainiumToStart(silentUpdates);
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    regularInstalls = moveObtainiumToStart(regularInstalls);
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    // // Install silent updates (uncomment when it works - TODO)
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    // for (var u in silentUpdates) {
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    //   await installApk(u, silent: true); // Would need to add silent option
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    // }
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    // Do regular installs
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    if (regularInstalls.isNotEmpty && context != null) {
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      // ignore: use_build_context_synchronously
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      await waitForUserToReturnToForeground(context);
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      for (var i in regularInstalls) {
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        try {
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          await installApk(i);
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        } catch (e) {
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          errors.add(i.appId, e.toString());
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        }
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      }
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    }
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    if (errors.content.isNotEmpty) {
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      throw errors;
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    }
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    NotificationsProvider().cancel(UpdateNotification([]).id);
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 | 
						|
    return downloadedFiles.map((e) => e!.appId).toList();
 | 
						|
  }
 | 
						|
 | 
						|
  Future<Directory> getAppsDir() async {
 | 
						|
    Directory appsDir = Directory(
 | 
						|
        '${(await getExternalStorageDirectory())?.path as String}/app_data');
 | 
						|
    if (!appsDir.existsSync()) {
 | 
						|
      appsDir.createSync();
 | 
						|
    }
 | 
						|
    return appsDir;
 | 
						|
  }
 | 
						|
 | 
						|
  Future<AppInfo?> getInstalledInfo(String? packageName) async {
 | 
						|
    if (packageName != null) {
 | 
						|
      try {
 | 
						|
        return await InstalledApps.getAppInfo(packageName);
 | 
						|
      } catch (e) {
 | 
						|
        // OK
 | 
						|
      }
 | 
						|
    }
 | 
						|
    return null;
 | 
						|
  }
 | 
						|
 | 
						|
  Future<bool> doesInstalledAppsPluginWork() async {
 | 
						|
    bool res = false;
 | 
						|
    try {
 | 
						|
      res = (await InstalledApps.getAppInfo(obtainiumId)).versionName != null;
 | 
						|
    } catch (e) {
 | 
						|
      //
 | 
						|
    }
 | 
						|
    if (!res) {
 | 
						|
      logs.add(tr('versionCorrectionDisabled'));
 | 
						|
    }
 | 
						|
    return res;
 | 
						|
  }
 | 
						|
 | 
						|
  // If the App says it is installed but installedInfo is null, set it to not installed
 | 
						|
  // If there is any other mismatch between installedInfo and installedVersion, try reconciling them intelligently
 | 
						|
  // If that fails, just set it to the actual version string (all we can do at that point)
 | 
						|
  // Don't save changes, just return the object if changes were made (else null)
 | 
						|
  App? getCorrectedInstallStatusAppIfPossible(App app, AppInfo? installedInfo) {
 | 
						|
    var modded = false;
 | 
						|
    var trackOnly = app.additionalSettings['trackOnly'] == 'true';
 | 
						|
    var noVersionDetection =
 | 
						|
        app.additionalSettings['noVersionDetection'] == 'true';
 | 
						|
    if (installedInfo == null && app.installedVersion != null && !trackOnly) {
 | 
						|
      app.installedVersion = null;
 | 
						|
      modded = true;
 | 
						|
    } else if (installedInfo?.versionName != null &&
 | 
						|
        app.installedVersion == null) {
 | 
						|
      app.installedVersion = installedInfo!.versionName;
 | 
						|
      modded = true;
 | 
						|
    } else if (installedInfo?.versionName != null &&
 | 
						|
        installedInfo!.versionName != app.installedVersion &&
 | 
						|
        !noVersionDetection) {
 | 
						|
      String? correctedInstalledVersion = reconcileRealAndInternalVersions(
 | 
						|
          installedInfo.versionName!, app.installedVersion!);
 | 
						|
      if (correctedInstalledVersion != null) {
 | 
						|
        app.installedVersion = correctedInstalledVersion;
 | 
						|
        modded = true;
 | 
						|
      }
 | 
						|
    }
 | 
						|
    if (app.installedVersion != null &&
 | 
						|
        app.installedVersion != app.latestVersion &&
 | 
						|
        !noVersionDetection) {
 | 
						|
      app.installedVersion = reconcileRealAndInternalVersions(
 | 
						|
              app.installedVersion!, app.latestVersion,
 | 
						|
              matchMode: true) ??
 | 
						|
          app.installedVersion;
 | 
						|
      modded = true;
 | 
						|
    }
 | 
						|
    return modded ? app : null;
 | 
						|
  }
 | 
						|
 | 
						|
  String? reconcileRealAndInternalVersions(
 | 
						|
      String realVersion, String internalVersion,
 | 
						|
      {bool matchMode = false}) {
 | 
						|
    // 1. If one or both of these can't be converted to a "standard" format, return null (leave as is)
 | 
						|
    // 2. If both have a "standard" format under which they are equal, return null (leave as is)
 | 
						|
    // 3. If both have a "standard" format in common but are unequal, return realVersion (this means it was changed externally)
 | 
						|
    // If in matchMode, the outcomes of rules 2 and 3 are reversed, and the "real" version is not matched strictly
 | 
						|
    // Matchmode to be used when comparing internal install version and internal latest version
 | 
						|
 | 
						|
    bool doStringsMatchUnderRegEx(
 | 
						|
        String pattern, String value1, String value2) {
 | 
						|
      var r = RegExp(pattern);
 | 
						|
      var m1 = r.firstMatch(value1);
 | 
						|
      var m2 = r.firstMatch(value2);
 | 
						|
      return m1 != null && m2 != null
 | 
						|
          ? value1.substring(m1.start, m1.end) ==
 | 
						|
              value2.substring(m2.start, m2.end)
 | 
						|
          : false;
 | 
						|
    }
 | 
						|
 | 
						|
    Set<String> findStandardFormatsForVersion(String version, bool strict) {
 | 
						|
      Set<String> results = {};
 | 
						|
      for (var pattern in standardVersionRegExStrings) {
 | 
						|
        if (RegExp('${strict ? '^' : ''}$pattern${strict ? '\$' : ''}')
 | 
						|
            .hasMatch(version)) {
 | 
						|
          results.add(pattern);
 | 
						|
        }
 | 
						|
      }
 | 
						|
      return results;
 | 
						|
    }
 | 
						|
 | 
						|
    var realStandardVersionFormats =
 | 
						|
        findStandardFormatsForVersion(realVersion, true);
 | 
						|
    var internalStandardVersionFormats =
 | 
						|
        findStandardFormatsForVersion(internalVersion, false);
 | 
						|
    var commonStandardFormats =
 | 
						|
        realStandardVersionFormats.intersection(internalStandardVersionFormats);
 | 
						|
    if (commonStandardFormats.isEmpty) {
 | 
						|
      return null; // Incompatible; no "enhanced detection"
 | 
						|
    }
 | 
						|
    for (String pattern in commonStandardFormats) {
 | 
						|
      if (doStringsMatchUnderRegEx(pattern, internalVersion, realVersion)) {
 | 
						|
        return matchMode
 | 
						|
            ? internalVersion
 | 
						|
            : null; // Enhanced detection says no change
 | 
						|
      }
 | 
						|
    }
 | 
						|
    return matchMode
 | 
						|
        ? null
 | 
						|
        : realVersion; // Enhanced detection says something changed
 | 
						|
  }
 | 
						|
 | 
						|
  Future<void> loadApps() async {
 | 
						|
    while (loadingApps) {
 | 
						|
      await Future.delayed(const Duration(microseconds: 1));
 | 
						|
    }
 | 
						|
    loadingApps = true;
 | 
						|
    notifyListeners();
 | 
						|
    List<App> newApps = (await getAppsDir())
 | 
						|
        .listSync()
 | 
						|
        .where((item) => item.path.toLowerCase().endsWith('.json'))
 | 
						|
        .map((e) => App.fromJson(jsonDecode(File(e.path).readAsStringSync())))
 | 
						|
        .toList();
 | 
						|
    var idsToDelete = apps.values
 | 
						|
        .map((e) => e.app.id)
 | 
						|
        .toSet()
 | 
						|
        .difference(newApps.map((e) => e.id).toSet());
 | 
						|
    for (var id in idsToDelete) {
 | 
						|
      apps.remove(id);
 | 
						|
    }
 | 
						|
    var sp = SourceProvider();
 | 
						|
    List<List<String>> errors = [];
 | 
						|
    for (int i = 0; i < newApps.length; i++) {
 | 
						|
      var info = await getInstalledInfo(newApps[i].id);
 | 
						|
      try {
 | 
						|
        sp.getSource(newApps[i].url);
 | 
						|
        apps[newApps[i].id] = AppInMemory(newApps[i], null, info);
 | 
						|
      } catch (e) {
 | 
						|
        errors.add([newApps[i].id, newApps[i].name, e.toString()]);
 | 
						|
      }
 | 
						|
    }
 | 
						|
    if (errors.isNotEmpty) {
 | 
						|
      removeApps(errors.map((e) => e[0]).toList());
 | 
						|
      NotificationsProvider().notify(
 | 
						|
          AppsRemovedNotification(errors.map((e) => [e[1], e[2]]).toList()));
 | 
						|
    }
 | 
						|
    loadingApps = false;
 | 
						|
    notifyListeners();
 | 
						|
    if (await doesInstalledAppsPluginWork()) {
 | 
						|
      List<App> modifiedApps = [];
 | 
						|
      for (var app in apps.values) {
 | 
						|
        var moddedApp =
 | 
						|
            getCorrectedInstallStatusAppIfPossible(app.app, app.installedInfo);
 | 
						|
        if (moddedApp != null) {
 | 
						|
          modifiedApps.add(moddedApp);
 | 
						|
        }
 | 
						|
      }
 | 
						|
      if (modifiedApps.isNotEmpty) {
 | 
						|
        await saveApps(modifiedApps, attemptToCorrectInstallStatus: false);
 | 
						|
      }
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  Future<void> saveApps(List<App> apps,
 | 
						|
      {bool attemptToCorrectInstallStatus = true}) async {
 | 
						|
    attemptToCorrectInstallStatus =
 | 
						|
        attemptToCorrectInstallStatus && (await doesInstalledAppsPluginWork());
 | 
						|
    for (var app in apps) {
 | 
						|
      AppInfo? info = await getInstalledInfo(app.id);
 | 
						|
      app.name = info?.name ?? app.name;
 | 
						|
      if (attemptToCorrectInstallStatus) {
 | 
						|
        app = getCorrectedInstallStatusAppIfPossible(app, info) ?? app;
 | 
						|
      }
 | 
						|
      File('${(await getAppsDir()).path}/${app.id}.json')
 | 
						|
          .writeAsStringSync(jsonEncode(app.toJson()));
 | 
						|
      this.apps.update(
 | 
						|
          app.id, (value) => AppInMemory(app, value.downloadProgress, info),
 | 
						|
          ifAbsent: () => AppInMemory(app, null, info));
 | 
						|
    }
 | 
						|
    notifyListeners();
 | 
						|
  }
 | 
						|
 | 
						|
  Future<void> removeApps(List<String> appIds) async {
 | 
						|
    for (var appId in appIds) {
 | 
						|
      File file = File('${(await getAppsDir()).path}/$appId.json');
 | 
						|
      if (file.existsSync()) {
 | 
						|
        file.deleteSync();
 | 
						|
      }
 | 
						|
      if (apps.containsKey(appId)) {
 | 
						|
        apps.remove(appId);
 | 
						|
      }
 | 
						|
    }
 | 
						|
    if (appIds.isNotEmpty) {
 | 
						|
      notifyListeners();
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  Future<App?> checkUpdate(String appId) async {
 | 
						|
    App? currentApp = apps[appId]!.app;
 | 
						|
    SourceProvider sourceProvider = SourceProvider();
 | 
						|
    App newApp = await sourceProvider.getApp(
 | 
						|
        sourceProvider.getSource(currentApp.url),
 | 
						|
        currentApp.url,
 | 
						|
        currentApp.additionalSettings,
 | 
						|
        currentApp: currentApp);
 | 
						|
    if (currentApp.preferredApkIndex < newApp.apkUrls.length) {
 | 
						|
      newApp.preferredApkIndex = currentApp.preferredApkIndex;
 | 
						|
    }
 | 
						|
    await saveApps([newApp]);
 | 
						|
    return newApp.latestVersion != currentApp.latestVersion ? newApp : null;
 | 
						|
  }
 | 
						|
 | 
						|
  Future<List<App>> checkUpdates(
 | 
						|
      {DateTime? ignoreAppsCheckedAfter,
 | 
						|
      bool throwErrorsForRetry = false}) async {
 | 
						|
    List<App> updates = [];
 | 
						|
    MultiAppMultiError errors = MultiAppMultiError();
 | 
						|
    if (!gettingUpdates) {
 | 
						|
      gettingUpdates = true;
 | 
						|
      try {
 | 
						|
        List<String> appIds = apps.values
 | 
						|
            .where((app) =>
 | 
						|
                app.app.lastUpdateCheck == null ||
 | 
						|
                ignoreAppsCheckedAfter == null ||
 | 
						|
                app.app.lastUpdateCheck!.isBefore(ignoreAppsCheckedAfter))
 | 
						|
            .map((e) => e.app.id)
 | 
						|
            .toList();
 | 
						|
        appIds.sort((a, b) => (apps[a]!.app.lastUpdateCheck ??
 | 
						|
                DateTime.fromMicrosecondsSinceEpoch(0))
 | 
						|
            .compareTo(apps[b]!.app.lastUpdateCheck ??
 | 
						|
                DateTime.fromMicrosecondsSinceEpoch(0)));
 | 
						|
        for (int i = 0; i < appIds.length; i++) {
 | 
						|
          App? newApp;
 | 
						|
          try {
 | 
						|
            newApp = await checkUpdate(appIds[i]);
 | 
						|
          } catch (e) {
 | 
						|
            if ((e is RateLimitError || e is SocketException) &&
 | 
						|
                throwErrorsForRetry) {
 | 
						|
              rethrow;
 | 
						|
            }
 | 
						|
            errors.add(appIds[i], e.toString());
 | 
						|
          }
 | 
						|
          if (newApp != null) {
 | 
						|
            updates.add(newApp);
 | 
						|
          }
 | 
						|
        }
 | 
						|
      } finally {
 | 
						|
        gettingUpdates = false;
 | 
						|
      }
 | 
						|
    }
 | 
						|
    if (errors.content.isNotEmpty) {
 | 
						|
      throw errors;
 | 
						|
    }
 | 
						|
    return updates;
 | 
						|
  }
 | 
						|
 | 
						|
  List<String> findExistingUpdates(
 | 
						|
      {bool installedOnly = false, bool nonInstalledOnly = false}) {
 | 
						|
    List<String> updateAppIds = [];
 | 
						|
    List<String> appIds = apps.keys.toList();
 | 
						|
    for (int i = 0; i < appIds.length; i++) {
 | 
						|
      App? app = apps[appIds[i]]!.app;
 | 
						|
      if (app.installedVersion != app.latestVersion &&
 | 
						|
          (!installedOnly || !nonInstalledOnly)) {
 | 
						|
        if ((app.installedVersion == null &&
 | 
						|
                (nonInstalledOnly || !installedOnly) ||
 | 
						|
            (app.installedVersion != null &&
 | 
						|
                (installedOnly || !nonInstalledOnly)))) {
 | 
						|
          updateAppIds.add(app.id);
 | 
						|
        }
 | 
						|
      }
 | 
						|
    }
 | 
						|
    return updateAppIds;
 | 
						|
  }
 | 
						|
 | 
						|
  Future<String> exportApps() async {
 | 
						|
    Directory? exportDir = Directory('/storage/emulated/0/Download');
 | 
						|
    String path = 'Downloads'; // TODO: See if hardcoding this can be avoided
 | 
						|
    if (!exportDir.existsSync()) {
 | 
						|
      exportDir = await getExternalStorageDirectory();
 | 
						|
      path = exportDir!.path;
 | 
						|
    }
 | 
						|
    File export = File(
 | 
						|
        '${exportDir.path}/${tr('obtainiumExportHyphenatedLowercase')}-${DateTime.now().millisecondsSinceEpoch}.json');
 | 
						|
    export.writeAsStringSync(
 | 
						|
        jsonEncode(apps.values.map((e) => e.app.toJson()).toList()));
 | 
						|
    return path;
 | 
						|
  }
 | 
						|
 | 
						|
  Future<int> importApps(String appsJSON) async {
 | 
						|
    List<App> importedApps = (jsonDecode(appsJSON) as List<dynamic>)
 | 
						|
        .map((e) => App.fromJson(e))
 | 
						|
        .toList();
 | 
						|
    while (loadingApps) {
 | 
						|
      await Future.delayed(const Duration(microseconds: 1));
 | 
						|
    }
 | 
						|
    for (App a in importedApps) {
 | 
						|
      if (apps[a.id]?.app.installedVersion != null) {
 | 
						|
        a.installedVersion = apps[a.id]?.app.installedVersion;
 | 
						|
      }
 | 
						|
    }
 | 
						|
    await saveApps(importedApps);
 | 
						|
    notifyListeners();
 | 
						|
    return importedApps.length;
 | 
						|
  }
 | 
						|
 | 
						|
  @override
 | 
						|
  void dispose() {
 | 
						|
    foregroundSubscription?.cancel();
 | 
						|
    super.dispose();
 | 
						|
  }
 | 
						|
 | 
						|
  Future<List<List<String>>> addAppsByURL(List<String> urls) async {
 | 
						|
    List<dynamic> results = await SourceProvider().getAppsByURLNaive(urls,
 | 
						|
        ignoreUrls: apps.values.map((e) => e.app.url).toList());
 | 
						|
    List<App> pps = results[0];
 | 
						|
    Map<String, dynamic> errorsMap = results[1];
 | 
						|
    for (var app in pps) {
 | 
						|
      if (apps.containsKey(app.id)) {
 | 
						|
        errorsMap.addAll({app.id: tr('appAlreadyAdded')});
 | 
						|
      } else {
 | 
						|
        await saveApps([app]);
 | 
						|
      }
 | 
						|
    }
 | 
						|
    List<List<String>> errors =
 | 
						|
        errorsMap.keys.map((e) => [e, errorsMap[e].toString()]).toList();
 | 
						|
    return errors;
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
class APKPicker extends StatefulWidget {
 | 
						|
  const APKPicker({super.key, required this.app, this.initVal, this.archs});
 | 
						|
 | 
						|
  final App app;
 | 
						|
  final String? initVal;
 | 
						|
  final List<String>? archs;
 | 
						|
 | 
						|
  @override
 | 
						|
  State<APKPicker> createState() => _APKPickerState();
 | 
						|
}
 | 
						|
 | 
						|
class _APKPickerState extends State<APKPicker> {
 | 
						|
  String? apkUrl;
 | 
						|
 | 
						|
  @override
 | 
						|
  Widget build(BuildContext context) {
 | 
						|
    apkUrl ??= widget.initVal;
 | 
						|
    return AlertDialog(
 | 
						|
      scrollable: true,
 | 
						|
      title: Text(tr('pickAnAPK')),
 | 
						|
      content: Column(children: [
 | 
						|
        Text(tr('appHasMoreThanOnePackage', args: [widget.app.name])),
 | 
						|
        const SizedBox(height: 16),
 | 
						|
        ...widget.app.apkUrls.map(
 | 
						|
          (u) => RadioListTile<String>(
 | 
						|
              title: Text(Uri.parse(u)
 | 
						|
                  .pathSegments
 | 
						|
                  .where((element) => element.isNotEmpty)
 | 
						|
                  .last),
 | 
						|
              value: u,
 | 
						|
              groupValue: apkUrl,
 | 
						|
              onChanged: (String? val) {
 | 
						|
                setState(() {
 | 
						|
                  apkUrl = val;
 | 
						|
                });
 | 
						|
              }),
 | 
						|
        ),
 | 
						|
        if (widget.archs != null)
 | 
						|
          const SizedBox(
 | 
						|
            height: 16,
 | 
						|
          ),
 | 
						|
        if (widget.archs != null)
 | 
						|
          Text(
 | 
						|
            widget.archs!.length == 1
 | 
						|
                ? tr('deviceSupportsXArch', args: [widget.archs![0]])
 | 
						|
                : tr('deviceSupportsFollowingArchs') +
 | 
						|
                    list2FriendlyString(
 | 
						|
                        widget.archs!.map((e) => '\'$e\'').toList()),
 | 
						|
            style: const TextStyle(fontStyle: FontStyle.italic, fontSize: 12),
 | 
						|
          ),
 | 
						|
      ]),
 | 
						|
      actions: [
 | 
						|
        TextButton(
 | 
						|
            onPressed: () {
 | 
						|
              Navigator.of(context).pop(null);
 | 
						|
            },
 | 
						|
            child: Text(tr('cancel'))),
 | 
						|
        TextButton(
 | 
						|
            onPressed: () {
 | 
						|
              HapticFeedback.selectionClick();
 | 
						|
              Navigator.of(context).pop(apkUrl);
 | 
						|
            },
 | 
						|
            child: Text(tr('continue')))
 | 
						|
      ],
 | 
						|
    );
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
class APKOriginWarningDialog extends StatefulWidget {
 | 
						|
  const APKOriginWarningDialog(
 | 
						|
      {super.key, required this.sourceUrl, required this.apkUrl});
 | 
						|
 | 
						|
  final String sourceUrl;
 | 
						|
  final String apkUrl;
 | 
						|
 | 
						|
  @override
 | 
						|
  State<APKOriginWarningDialog> createState() => _APKOriginWarningDialogState();
 | 
						|
}
 | 
						|
 | 
						|
class _APKOriginWarningDialogState extends State<APKOriginWarningDialog> {
 | 
						|
  @override
 | 
						|
  Widget build(BuildContext context) {
 | 
						|
    return AlertDialog(
 | 
						|
      scrollable: true,
 | 
						|
      title: Text(tr('warning')),
 | 
						|
      content: Text(tr('sourceIsXButPackageFromYPrompt', args: [
 | 
						|
        Uri.parse(widget.sourceUrl).host,
 | 
						|
        Uri.parse(widget.apkUrl).host
 | 
						|
      ])),
 | 
						|
      actions: [
 | 
						|
        TextButton(
 | 
						|
            onPressed: () {
 | 
						|
              Navigator.of(context).pop(null);
 | 
						|
            },
 | 
						|
            child: Text(tr('cancel'))),
 | 
						|
        TextButton(
 | 
						|
            onPressed: () {
 | 
						|
              HapticFeedback.selectionClick();
 | 
						|
              Navigator.of(context).pop(true);
 | 
						|
            },
 | 
						|
            child: Text(tr('continue')))
 | 
						|
      ],
 | 
						|
    );
 | 
						|
  }
 | 
						|
}
 |