FIXED GITHUB ISSUE

README.md

@@ -4,19 +4,22 @@ Get Android App Updates Directly From the Source.
 
 Obtainium allows you to install and update Open-Source Apps directly from their releases pages, and receive notifications when new releases are made available.
 
-Currently supported App sources:
-- GitHub
-- GitLab
-
 Motivation: [Side Of Burritos - You should use this instead of F-Droid | How to use app RSS feed](https://youtu.be/FFz57zNR_M0)
 
+Currently supported App sources:
+- [GitHub](https://github.com/)
+- [GitLab](https://gitlab.com/)
+- [F-Droid](https://f-droid.org/)
+- [Mullvad](https://mullvad.net/en/)
+- [Signal](https://signal.org/)
+
 ## Limitations
 - App installs are assumed to have succeeded; failures and cancelled installs cannot be detected.
 - Auto (unattended) updates are unsupported due to a lack of any capable Flutter plugin.
-- For GitHub, data is gathered using Web scraping and can easily break due to changes in website design. More reliable methods are either insufficient (GitHub RSS) or subject to rate limits (GitHub API). This may also apply to new sources added in the future.
+- For some sources, data is gathered using Web scraping and can easily break due to changes in website design. In such cases, more reliable methods may be unavailable.
 
 ## Screenshots
 
-| <img src="./screenshots/1.apps.png" alt="Apps Page" /> | <img src="./screenshots/2.dark_theme.png" alt="Dark Theme" />           | <img src="./screenshots/3.material_you.png" alt="Material You" />    |
+| <img src="./assets/screenshots/1.apps.png" alt="Apps Page" /> | <img src="./assets/screenshots/2.dark_theme.png" alt="Dark Theme" />           | <img src="./assets/screenshots/3.material_you.png" alt="Material You" />    |
 | ------------------------------------------------------ | ----------------------------------------------------------------------- | -------------------------------------------------------------------- |
-| <img src="./screenshots/4.app.png" alt="App Page" />   | <img src="./screenshots/5.apk_picker.png" alt="Multiple APK Support" /> | <img src="./screenshots/6.apk_install.png" alt="App Installation" /> |
+| <img src="./assets/screenshots/4.app.png" alt="App Page" />   | <img src="./assets/screenshots/5.apk_picker.png" alt="Multiple APK Support" /> | <img src="./assets/screenshots/6.apk_install.png" alt="App Installation" /> |

lib/main.dart

@@ -9,18 +9,19 @@ import 'package:permission_handler/permission_handler.dart';
 import 'package:provider/provider.dart';
 import 'package:workmanager/workmanager.dart';
 import 'package:dynamic_color/dynamic_color.dart';
+import 'package:device_info_plus/device_info_plus.dart';
 
 const String currentReleaseTag =
-    'v0.1.5-beta'; // KEEP THIS IN SYNC WITH GITHUB RELEASES
+    'v0.1.9-beta'; // KEEP THIS IN SYNC WITH GITHUB RELEASES
 
 @pragma('vm:entry-point')
 void bgTaskCallback() {
   // Background update checking process
   Workmanager().executeTask((task, taskName) async {
-    var appsProvider = AppsProvider(bg: true);
     var notificationsProvider = NotificationsProvider();
     await notificationsProvider.notify(checkingUpdatesNotification);
     try {
+      var appsProvider = AppsProvider();
       await notificationsProvider
           .cancel(ErrorCheckingUpdatesNotification('').id);
       await appsProvider.loadApps();
@@ -43,16 +44,22 @@ void bgTaskCallback() {
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
-  SystemChrome.setSystemUIOverlayStyle(
-    const SystemUiOverlayStyle(systemNavigationBarColor: Colors.transparent),
-  );
-  SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
+  if ((await DeviceInfoPlugin().androidInfo).version.sdkInt! >= 29) {
+    SystemChrome.setSystemUIOverlayStyle(
+      const SystemUiOverlayStyle(systemNavigationBarColor: Colors.transparent),
+    );
+    SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
+  }
   Workmanager().initialize(
     bgTaskCallback,
   );
   runApp(MultiProvider(
     providers: [
-      ChangeNotifierProvider(create: (context) => AppsProvider()),
+      ChangeNotifierProvider(
+          create: (context) => AppsProvider(
+              shouldLoadApps: true,
+              shouldCheckUpdatesAfterLoad: true,
+              shouldDeleteAPKs: true)),
       ChangeNotifierProvider(create: (context) => SettingsProvider()),
       Provider(create: (context) => NotificationsProvider())
     ],
@@ -71,12 +78,7 @@ class MyApp extends StatelessWidget {
     AppsProvider appsProvider = context.read<AppsProvider>();
 
     if (settingsProvider.prefs == null) {
-      settingsProvider.initializeSettings().then((value) {
-        // Delete past downloads and check for updates every time the app is launched
-        // Only runs once as the settings are only initialized once (so not on every build)
-        appsProvider.deleteSavedAPKs();
-        appsProvider.checkUpdates();
-      });
+      settingsProvider.initializeSettings();
     } else {
       // Register the background update task according to the user's setting
       Workmanager().registerPeriodicTask('bg-update-check', 'bg-update-check',
@@ -94,7 +96,9 @@ class MyApp extends StatelessWidget {
             'ImranR98',
             'Obtainium',
             currentReleaseTag,
-            currentReleaseTag, []));
+            currentReleaseTag,
+            [],
+            0));
       }
     }
 

lib/pages/app.dart

@@ -1,6 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:obtainium/providers/apps_provider.dart';
+import 'package:obtainium/providers/settings_provider.dart';
+import 'package:url_launcher/url_launcher_string.dart';
 import 'package:webview_flutter/webview_flutter.dart';
 import 'package:provider/provider.dart';
 
@@ -17,6 +19,7 @@ class _AppPageState extends State<AppPage> {
   @override
   Widget build(BuildContext context) {
     var appsProvider = context.watch<AppsProvider>();
+    var settingsProvider = context.watch<SettingsProvider>();
     AppInMemory? app = appsProvider.apps[widget.appId];
     if (app?.app.installedVersion != null) {
       appsProvider.getUpdate(app!.app.id);
@@ -25,10 +28,58 @@ class _AppPageState extends State<AppPage> {
       appBar: AppBar(
         title: Text('${app?.app.author}/${app?.app.name}'),
       ),
-      body: WebView(
-        initialUrl: app?.app.url,
-        javascriptMode: JavascriptMode.unrestricted,
-      ),
+      body: settingsProvider.showAppWebpage
+          ? WebView(
+              initialUrl: app?.app.url,
+              javascriptMode: JavascriptMode.unrestricted,
+            )
+          : Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              crossAxisAlignment: CrossAxisAlignment.stretch,
+              children: [
+                Text(
+                  app?.app.name ?? 'App',
+                  textAlign: TextAlign.center,
+                  style: Theme.of(context).textTheme.displayLarge,
+                ),
+                Text(
+                  'By ${app?.app.author ?? 'Unknown'}',
+                  textAlign: TextAlign.center,
+                  style: Theme.of(context).textTheme.headlineMedium,
+                ),
+                const SizedBox(
+                  height: 32,
+                ),
+                GestureDetector(
+                    onTap: () {
+                      if (app?.app.url != null) {
+                        launchUrlString(app?.app.url ?? '',
+                            mode: LaunchMode.externalApplication);
+                      }
+                    },
+                    child: Text(
+                      app?.app.url ?? '',
+                      textAlign: TextAlign.center,
+                      style: const TextStyle(
+                          decoration: TextDecoration.underline,
+                          fontStyle: FontStyle.italic,
+                          fontSize: 12),
+                    )),
+                const SizedBox(
+                  height: 32,
+                ),
+                Text(
+                  'Latest Version: ${app?.app.latestVersion ?? 'Unknown'}',
+                  textAlign: TextAlign.center,
+                  style: Theme.of(context).textTheme.bodyLarge,
+                ),
+                Text(
+                  'Installed Version: ${app?.app.installedVersion ?? 'None'}',
+                  textAlign: TextAlign.center,
+                  style: Theme.of(context).textTheme.bodyLarge,
+                ),
+              ],
+            ),
       bottomSheet: Padding(
           padding: EdgeInsets.fromLTRB(
               0, 0, 0, MediaQuery.of(context).padding.bottom),
@@ -100,8 +151,10 @@ class _AppPageState extends State<AppPage> {
                                       });
                                 },
                           style: TextButton.styleFrom(
-                              foregroundColor: Theme.of(context).errorColor,
-                              surfaceTintColor: Theme.of(context).errorColor),
+                              foregroundColor:
+                                  Theme.of(context).colorScheme.error,
+                              surfaceTintColor:
+                                  Theme.of(context).colorScheme.error),
                           child: const Text('Remove'),
                         ),
                       ])),

lib/pages/apps.dart

@@ -42,7 +42,7 @@ class _AppsPageState extends State<AppsPage> {
               : appsProvider.apps.isEmpty
                   ? Text(
                       'No Apps',
-                      style: Theme.of(context).textTheme.headline4,
+                      style: Theme.of(context).textTheme.headlineMedium,
                     )
                   : RefreshIndicator(
                       onRefresh: () {

lib/pages/settings.dart

@@ -110,7 +110,21 @@ class _SettingsPageState extends State<SettingsPage> {
                         }
                       }),
                   const SizedBox(
-                    height: 32,
+                    height: 16,
+                  ),
+                  Row(
+                    mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                    children: [
+                      const Text('Show Source Webpage in App View'),
+                      Switch(
+                          value: settingsProvider.showAppWebpage,
+                          onChanged: (value) {
+                            settingsProvider.showAppWebpage = value;
+                          })
+                    ],
+                  ),
+                  const SizedBox(
+                    height: 16,
                   ),
                   Row(
                     mainAxisAlignment: MainAxisAlignment.spaceAround,
@@ -127,7 +141,7 @@ class _SettingsPageState extends State<SettingsPage> {
                                     );
                                   });
                                 },
-                          child: const Text('Export Apps')),
+                          child: const Text('Export App List')),
                       ElevatedButton(
                           onPressed: () {
                             HapticFeedback.lightImpact();
@@ -140,7 +154,7 @@ class _SettingsPageState extends State<SettingsPage> {
 
                                   return AlertDialog(
                                     scrollable: true,
-                                    title: const Text('Import Apps'),
+                                    title: const Text('Import App List'),
                                     content: Column(children: [
                                       const Text(
                                           'Copy the contents of the Obtainium export file and paste them into the field below:'),
@@ -193,7 +207,7 @@ class _SettingsPageState extends State<SettingsPage> {
                                                     .showSnackBar(
                                                   SnackBar(
                                                       content: Text(
-                                                          '$value Apps Imported')),
+                                                          '$value App${value == 1 ? '' : 's'} Imported')),
                                                 );
                                               }).catchError((e) {
                                                 ScaffoldMessenger.of(context)
@@ -212,7 +226,7 @@ class _SettingsPageState extends State<SettingsPage> {
                                   );
                                 });
                           },
-                          child: const Text('Import Apps'))
+                          child: const Text('Import App List'))
                     ],
                   ),
                   const Spacer(),
@@ -235,7 +249,7 @@ class _SettingsPageState extends State<SettingsPage> {
                         icon: const Icon(Icons.code),
                         label: Text(
                           'Source',
-                          style: Theme.of(context).textTheme.caption,
+                          style: Theme.of(context).textTheme.bodySmall,
                         ),
                       )
                     ],

lib/providers/apps_provider.dart

@@ -39,14 +39,26 @@ class AppsProvider with ChangeNotifier {
   late Stream<FGBGType> foregroundStream;
   late StreamSubscription<FGBGType> foregroundSubscription;
 
-  AppsProvider({bool bg = false}) {
+  AppsProvider(
+      {bool shouldLoadApps = false,
+      bool shouldCheckUpdatesAfterLoad = false,
+      bool shouldDeleteAPKs = false}) {
     // Subscribe to changes in the app foreground status
     foregroundStream = FGBGEvents.stream.asBroadcastStream();
     foregroundSubscription = foregroundStream.listen((event) async {
       isForeground = event == FGBGType.foreground;
       if (isForeground) await loadApps();
     });
-    loadApps();
+    if (shouldDeleteAPKs) {
+      deleteSavedAPKs();
+    }
+    if (shouldLoadApps) {
+      loadApps().then((_) {
+        if (shouldCheckUpdatesAfterLoad) {
+          checkUpdates();
+        }
+      });
+    }
   }
 
   Future<ApkFile> downloadApp(String apkUrl, String appId) async {
@@ -96,7 +108,8 @@ class AppsProvider with ChangeNotifier {
       if (apps[id] == null) {
         throw 'App not found';
       }
-      String? apkUrl = apps[id]!.app.apkUrls.last;
+      // If the App has more than one APK, the user should pick one
+      String? apkUrl = apps[id]!.app.apkUrls[apps[id]!.app.preferredApkIndex];
       if (apps[id]!.app.apkUrls.length > 1) {
         apkUrl = await showDialog(
             context: context,
@@ -104,7 +117,25 @@ class AppsProvider with ChangeNotifier {
               return APKPicker(app: apps[id]!.app, initVal: apkUrl);
             });
       }
+      // If the picked APK comes from an origin different from the source, get user confirmation
+      if (apkUrl != null &&
+          !apkUrl.toLowerCase().startsWith(apps[id]!.app.url.toLowerCase())) {
+        if (await showDialog(
+                context: context,
+                builder: (BuildContext ctx) {
+                  return APKOriginWarningDialog(
+                      sourceUrl: apps[id]!.app.url, apkUrl: apkUrl!);
+                }) !=
+            true) {
+          apkUrl = null;
+        }
+      }
       if (apkUrl != null) {
+        int urlInd = apps[id]!.app.apkUrls.indexOf(apkUrl);
+        if (urlInd != apps[id]!.app.preferredApkIndex) {
+          apps[id]!.app.preferredApkIndex = urlInd;
+          await saveApp(apps[id]!.app);
+        }
         appsToInstall.putIfAbsent(id, () => apkUrl!);
       }
     }
@@ -200,6 +231,9 @@ class AppsProvider with ChangeNotifier {
     App newApp = await SourceProvider().getApp(currentApp.url);
     if (newApp.latestVersion != currentApp.latestVersion) {
       newApp.installedVersion = currentApp.installedVersion;
+      if (currentApp.preferredApkIndex < newApp.apkUrls.length) {
+        newApp.preferredApkIndex = currentApp.preferredApkIndex;
+      }
       await saveApp(newApp);
       return newApp;
     }
@@ -290,17 +324,17 @@ class _APKPickerState extends State<APKPicker> {
       scrollable: true,
       title: const Text('Pick an APK'),
       content: Column(children: [
-        Text('${widget.app.name} has more than one package - pick one.'),
-        ...widget.app.apkUrls.map((u) => ListTile(
+        Text('${widget.app.name} has more than one package:'),
+        const SizedBox(height: 16),
+        ...widget.app.apkUrls.map((u) => RadioListTile<String>(
             title: Text(Uri.parse(u).pathSegments.last),
-            leading: Radio<String>(
-                value: u,
-                groupValue: apkUrl,
-                onChanged: (String? val) {
-                  setState(() {
-                    apkUrl = val;
-                  });
-                })))
+            value: u,
+            groupValue: apkUrl,
+            onChanged: (String? val) {
+              setState(() {
+                apkUrl = val;
+              });
+            }))
       ]),
       actions: [
         TextButton(
@@ -311,7 +345,7 @@ class _APKPickerState extends State<APKPicker> {
             child: const Text('Cancel')),
         TextButton(
             onPressed: () {
-              HapticFeedback.mediumImpact();
+              HapticFeedback.heavyImpact();
               Navigator.of(context).pop(apkUrl);
             },
             child: const Text('Continue'))
@@ -319,3 +353,40 @@ class _APKPickerState extends State<APKPicker> {
     );
   }
 }
+
+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: const Text('Warning'),
+      content: Text(
+          'The App source is \'${Uri.parse(widget.sourceUrl).host}\' but the release package comes from \'${Uri.parse(widget.apkUrl).host}\'. Continue?'),
+      actions: [
+        TextButton(
+            onPressed: () {
+              HapticFeedback.lightImpact();
+              Navigator.of(context).pop(null);
+            },
+            child: const Text('Cancel')),
+        TextButton(
+            onPressed: () {
+              HapticFeedback.heavyImpact();
+              Navigator.of(context).pop(true);
+            },
+            child: const Text('Continue'))
+      ],
+    );
+  }
+}

lib/providers/settings_provider.dart

@@ -69,4 +69,13 @@ class SettingsProvider with ChangeNotifier {
       }
     }
   }
+
+  bool get showAppWebpage {
+    return prefs?.getBool('showAppWebpage') ?? true;
+  }
+
+  set showAppWebpage(bool show) {
+    prefs?.setBool('showAppWebpage', show);
+    notifyListeners();
+  }
 }

lib/providers/source_provider.dart

@@ -29,8 +29,9 @@ class App {
   String? installedVersion;
   late String latestVersion;
   List<String> apkUrls = [];
+  late int preferredApkIndex;
   App(this.id, this.url, this.author, this.name, this.installedVersion,
-      this.latestVersion, this.apkUrls);
+      this.latestVersion, this.apkUrls, this.preferredApkIndex);
 
   @override
   String toString() {
@@ -38,15 +39,19 @@ class App {
   }
 
   factory App.fromJson(Map<String, dynamic> json) => App(
-      json['id'] as String,
-      json['url'] as String,
-      json['author'] as String,
-      json['name'] as String,
-      json['installedVersion'] == null
-          ? null
-          : json['installedVersion'] as String,
-      json['latestVersion'] as String,
-      List<String>.from(jsonDecode(json['apkUrls'])));
+        json['id'] as String,
+        json['url'] as String,
+        json['author'] as String,
+        json['name'] as String,
+        json['installedVersion'] == null
+            ? null
+            : json['installedVersion'] as String,
+        json['latestVersion'] as String,
+        List<String>.from(jsonDecode(json['apkUrls'])),
+        json['preferredApkIndex'] == null
+            ? 0
+            : json['preferredApkIndex'] as int,
+      );
 
   Map<String, dynamic> toJson() => {
         'id': id,
@@ -56,6 +61,7 @@ class App {
         'installedVersion': installedVersion,
         'latestVersion': latestVersion,
         'apkUrls': jsonEncode(apkUrls),
+        'preferredApkIndex': preferredApkIndex
       };
 }
 
@@ -65,6 +71,12 @@ escapeRegEx(String s) {
   });
 }
 
+const String couldNotFindReleases = 'Unable to fetch release info';
+const String couldNotFindLatestVersion =
+    'Could not determine latest release version';
+const String notValidURL = 'Not a valid URL';
+const String noAPKFound = 'No APK found';
+
 List<String> getLinksFromParsedHTML(
         Document dom, RegExp hrefPattern, String prependToLinks) =>
     dom
@@ -89,48 +101,56 @@ class GitHub implements AppSource {
 
   @override
   String standardizeURL(String url) {
-    RegExp standardUrlRegEx = RegExp('^https?://$host/[^/]*/[^/]*');
+    RegExp standardUrlRegEx = RegExp('^https?://$host/[^/]+/[^/]+');
     RegExpMatch? match = standardUrlRegEx.firstMatch(url.toLowerCase());
     if (match == null) {
-      throw 'Not a valid URL';
+      throw notValidURL;
     }
     return url.substring(0, match.end);
   }
 
   @override
   Future<APKDetails> getLatestAPKDetails(String standardUrl) async {
-    // The GitHub RSS feed does not contain asset download details, so we use web scraping (avoid API due to rate limits)
-    Response res = await get(Uri.parse('$standardUrl/releases/latest'));
+    Response res = await get(Uri.parse(
+        'https://api.$host/repos${standardUrl.substring('https://$host'.length)}/releases'));
     if (res.statusCode == 200) {
-      var standardUri = Uri.parse(standardUrl);
-      var parsedHtml = parse(res.body);
-      var apkUrlList = getLinksFromParsedHTML(
-          parsedHtml,
-          RegExp(
-              '^${escapeRegEx(standardUri.path)}/releases/download/[^/]+/[^/]+\\.apk\$',
-              caseSensitive: false),
-          standardUri.origin);
-      if (apkUrlList.isEmpty) {
-        throw 'No APK found';
+      var releases = jsonDecode(res.body) as List<dynamic>;
+      // Right now, the latest non-prerelease version is picked
+      // If none exists, the latest prerelease version is picked
+      // In the future, the user could be given a choice
+      var nonPrereleaseReleases =
+          releases.where((element) => element['prerelease'] != true).toList();
+      var latestRelease = nonPrereleaseReleases.isNotEmpty
+          ? nonPrereleaseReleases[0]
+          : releases.isNotEmpty
+              ? releases[0]
+              : null;
+      if (latestRelease == null) {
+        throw couldNotFindReleases;
       }
-      String getTag(String url) {
-        List<String> parts = url.split('/');
-        return parts[parts.length - 2];
+      List<dynamic>? assets = latestRelease['assets'];
+      List<String>? apkUrlList = assets
+          ?.map((e) {
+            return e['browser_download_url'] != null
+                ? e['browser_download_url'] as String
+                : '';
+          })
+          .where((element) => element.toLowerCase().endsWith('.apk'))
+          .toList();
+      if (apkUrlList == null || apkUrlList.isEmpty) {
+        throw noAPKFound;
+      }
+      String? version = latestRelease['tag_name'];
+      if (version == null) {
+        throw couldNotFindLatestVersion;
+      }
+      return APKDetails(version, apkUrlList);
+    } else {
+      if (res.headers['x-ratelimit-remaining'] == '0') {
+        throw 'Rate limit reached - try again in ${(int.parse(res.headers['x-ratelimit-reset'] ?? '1800000000') / 60000000).toString()} minutes';
       }
 
-      String latestTag = getTag(apkUrlList[0]);
-      String? version = parsedHtml
-          .querySelector('.octicon-tag')
-          ?.nextElementSibling
-          ?.innerHtml
-          .trim();
-      if (version == null) {
-        throw 'Could not determine latest release version';
-      }
-      return APKDetails(version,
-          apkUrlList.where((element) => getTag(element) == latestTag).toList());
-    } else {
-      throw 'Unable to fetch release info';
+      throw couldNotFindReleases;
     }
   }
 
@@ -148,17 +168,16 @@ class GitLab implements AppSource {
 
   @override
   String standardizeURL(String url) {
-    RegExp standardUrlRegEx = RegExp('^https?://$host/[^/]*/[^/]*');
+    RegExp standardUrlRegEx = RegExp('^https?://$host/[^/]+/[^/]+');
     RegExpMatch? match = standardUrlRegEx.firstMatch(url.toLowerCase());
     if (match == null) {
-      throw 'Not a valid URL';
+      throw notValidURL;
     }
     return url.substring(0, match.end);
   }
 
   @override
   Future<APKDetails> getLatestAPKDetails(String standardUrl) async {
-    // GitLab provides an RSS feed with all the details we need
     Response res = await get(Uri.parse('$standardUrl/-/tags?format=atom'));
     if (res.statusCode == 200) {
       var standardUri = Uri.parse(standardUrl);
@@ -166,25 +185,32 @@ class GitLab implements AppSource {
       var entry = parsedHtml.querySelector('entry');
       var entryContent =
           parse(parseFragment(entry?.querySelector('content')!.innerHtml).text);
-      var apkUrlList = getLinksFromParsedHTML(
-          entryContent,
-          RegExp(
-              '^${escapeRegEx(standardUri.path)}/uploads/[^/]+/[^/]+\\.apk\$',
-              caseSensitive: false),
-          standardUri.origin);
+      var apkUrlList = [
+        ...getLinksFromParsedHTML(
+            entryContent,
+            RegExp(
+                '^${escapeRegEx(standardUri.path)}/uploads/[^/]+/[^/]+\\.apk\$',
+                caseSensitive: false),
+            standardUri.origin),
+        // GitLab releases may contain links to externally hosted APKs
+        ...getLinksFromParsedHTML(entryContent,
+                RegExp('/[^/]+\\.apk\$', caseSensitive: false), '')
+            .where((element) => Uri.parse(element).host != '')
+            .toList()
+      ];
       if (apkUrlList.isEmpty) {
-        throw 'No APK found';
+        throw noAPKFound;
       }
 
       var entryId = entry?.querySelector('id')?.innerHtml;
       var version =
           entryId == null ? null : Uri.parse(entryId).pathSegments.last;
       if (version == null) {
-        throw 'Could not determine latest release version';
+        throw couldNotFindLatestVersion;
       }
       return APKDetails(version, apkUrlList);
     } else {
-      throw 'Unable to fetch release info';
+      throw couldNotFindReleases;
     }
   }
 
@@ -212,24 +238,111 @@ class Signal implements AppSource {
       var json = jsonDecode(res.body);
       String? apkUrl = json['url'];
       if (apkUrl == null) {
-        throw 'No APK found';
+        throw noAPKFound;
       }
       String? version = json['versionName'];
       if (version == null) {
-        throw 'Could not determine latest release version';
+        throw couldNotFindLatestVersion;
       }
       return APKDetails(version, [apkUrl]);
     } else {
-      throw 'Unable to fetch release info';
+      throw couldNotFindReleases;
     }
   }
 
   @override
-  AppNames getAppNames(String standardUrl) => AppNames('signal', 'signal');
+  AppNames getAppNames(String standardUrl) => AppNames('Signal', 'Signal');
+}
+
+class FDroid implements AppSource {
+  @override
+  late String host = 'f-droid.org';
+
+  @override
+  String standardizeURL(String url) {
+    RegExp standardUrlRegEx = RegExp('^https?://$host/[^/]+/packages/[^/]+');
+    RegExpMatch? match = standardUrlRegEx.firstMatch(url.toLowerCase());
+    if (match == null) {
+      throw notValidURL;
+    }
+    return url.substring(0, match.end);
+  }
+
+  @override
+  Future<APKDetails> getLatestAPKDetails(String standardUrl) async {
+    Response res = await get(Uri.parse(standardUrl));
+    if (res.statusCode == 200) {
+      var latestReleaseDiv =
+          parse(res.body).querySelector('#latest.package-version');
+      var apkUrl = latestReleaseDiv
+          ?.querySelector('.package-version-download a')
+          ?.attributes['href'];
+      if (apkUrl == null) {
+        throw noAPKFound;
+      }
+      var version = latestReleaseDiv
+          ?.querySelector('.package-version-header b')
+          ?.innerHtml
+          .split(' ')
+          .last;
+      if (version == null) {
+        throw couldNotFindLatestVersion;
+      }
+      return APKDetails(version, [apkUrl]);
+    } else {
+      throw couldNotFindReleases;
+    }
+  }
+
+  @override
+  AppNames getAppNames(String standardUrl) {
+    var name = Uri.parse(standardUrl).pathSegments.last;
+    return AppNames(name, name);
+  }
+}
+
+class Mullvad implements AppSource {
+  @override
+  late String host = 'mullvad.net';
+
+  @override
+  String standardizeURL(String url) {
+    RegExp standardUrlRegEx = RegExp('^https?://$host');
+    RegExpMatch? match = standardUrlRegEx.firstMatch(url.toLowerCase());
+    if (match == null) {
+      throw notValidURL;
+    }
+    return url.substring(0, match.end);
+  }
+
+  @override
+  Future<APKDetails> getLatestAPKDetails(String standardUrl) async {
+    Response res = await get(Uri.parse('$standardUrl/en/download/android'));
+    if (res.statusCode == 200) {
+      var version = parse(res.body)
+          .querySelector('p.subtitle.is-6')
+          ?.querySelector('a')
+          ?.attributes['href']
+          ?.split('/')
+          .last;
+      if (version == null) {
+        throw couldNotFindLatestVersion;
+      }
+      return APKDetails(
+          version, ['https://mullvad.net/download/app/apk/latest']);
+    } else {
+      throw couldNotFindReleases;
+    }
+  }
+
+  @override
+  AppNames getAppNames(String standardUrl) {
+    return AppNames('Mullvad-VPN', 'Mullvad-VPN');
+  }
 }
 
 class SourceProvider {
-  List<AppSource> sources = [GitHub(), GitLab(), Signal()];
+  List<AppSource> sources = [GitHub(), GitLab(), FDroid(), Mullvad(), Signal()];
 
   // Add more source classes here so they are available via the service
   AppSource getSource(String url) {
@@ -265,7 +378,8 @@ class SourceProvider {
         names.name[0].toUpperCase() + names.name.substring(1),
         null,
         apk.version,
-        apk.apkUrls);
+        apk.apkUrls,
+        apk.apkUrls.length - 1);
   }
 
   List<String> getSourceHosts() => sources.map((e) => e.host).toList();

pubspec.lock

@@ -92,13 +92,55 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.7.8"
+  device_info_plus:
+    dependency: "direct main"
+    description:
+      name: device_info_plus
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.1.2"
+  device_info_plus_linux:
+    dependency: transitive
+    description:
+      name: device_info_plus_linux
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.0"
+  device_info_plus_macos:
+    dependency: transitive
+    description:
+      name: device_info_plus_macos
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.0"
+  device_info_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: device_info_plus_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.0"
+  device_info_plus_web:
+    dependency: transitive
+    description:
+      name: device_info_plus_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.0"
+  device_info_plus_windows:
+    dependency: transitive
+    description:
+      name: device_info_plus_windows
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.0"
   dynamic_color:
     dependency: "direct main"
     description:
       name: dynamic_color
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.3"
+    version: "1.5.4"
   fake_async:
     dependency: transitive
     description:
@@ -152,7 +194,7 @@ packages:
       name: flutter_local_notifications
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "9.8.0+1"
+    version: "9.9.1"
   flutter_local_notifications_linux:
     dependency: transitive
     description:
@@ -435,7 +477,7 @@ packages:
       name: shared_preferences_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0"
+    version: "2.1.0"
   shared_preferences_web:
     dependency: transitive
     description:
@@ -496,7 +538,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.12"
+    version: "0.4.13"
   timezone:
     dependency: transitive
     description:
@@ -573,7 +615,7 @@ packages:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.2"
+    version: "2.1.3"
   webview_flutter:
     dependency: "direct main"
     description:
@@ -587,14 +629,14 @@ packages:
       name: webview_flutter_android
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.9.5"
+    version: "2.10.0"
   webview_flutter_platform_interface:
     dependency: transitive
     description:
       name: webview_flutter_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.2"
+    version: "1.9.3"
   webview_flutter_wkwebview:
     dependency: transitive
     description:
@@ -639,4 +681,4 @@ packages:
     version: "3.1.1"
 sdks:
   dart: ">=2.19.0-79.0.dev <3.0.0"
-  flutter: ">=3.1.0-0.0.pre.1036"
+  flutter: ">=3.3.0"

pubspec.yaml

@@ -17,7 +17,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 0.1.5+6 # When changing this, update the tag in main() accordingly
+version: 0.1.9+10 # When changing this, update the tag in main() accordingly
 
 environment:
   sdk: '>=2.19.0-79.0.dev <3.0.0'
@@ -35,21 +35,22 @@ dependencies:
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^1.0.2
+  cupertino_icons: ^1.0.5
   path_provider: ^2.0.11
   flutter_fgbg: ^0.2.0 # Try removing reliance on this
-  flutter_local_notifications: ^9.8.0+1
+  flutter_local_notifications: ^9.9.1
   provider: ^6.0.3
   http: ^0.13.5
   webview_flutter: ^3.0.4
   workmanager: ^0.5.0
-  dynamic_color: ^1.5.3
+  dynamic_color: ^1.5.4
   install_plugin_v2: ^1.0.0 # Try replacing this
   html: ^0.15.0
   shared_preferences: ^2.0.15
   url_launcher: ^6.1.5
   permission_handler: ^10.0.0
   fluttertoast: ^8.0.9
+  device_info_plus: ^4.1.2
 
 
 dev_dependencies:
@@ -62,13 +63,13 @@ dev_dependencies:
   # activated in the `analysis_options.yaml` file located at the root of your
   # package. See that file for information about deactivating specific lint
   # rules and activating additional ones.
-  flutter_lints: ^2.0.0
+  flutter_lints: ^2.0.1
 
 flutter_icons:
   android: true
-  image_path: "assets/icon.png"
+  image_path: "assets/graphics/icon.png"
   adaptive_icon_background: "#FFFFFF"
-  adaptive_icon_foreground: "assets/icon.png"
+  adaptive_icon_foreground: "assets/graphics/icon.png"
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec