Fixed Mullvad web scraping (again)

lib/app_sources/mullvad.dart

@@ -1,7 +1,6 @@
 import 'package:html/parser.dart';
 import 'package:http/http.dart';
 import 'package:obtainium/app_sources/github.dart';
-import 'package:obtainium/app_sources/html.dart';
 import 'package:obtainium/custom_errors.dart';
 import 'package:obtainium/providers/source_provider.dart';
 
@@ -29,24 +28,41 @@ class Mullvad extends AppSource {
     String standardUrl,
     Map<String, dynamic> additionalSettings,
   ) async {
-    var details = await HTML().getLatestAPKDetails(
-        '$standardUrl/en/download/android', additionalSettings);
-    var fileName = details.apkUrls[0].split('/').last;
-    var versionMatch = RegExp('[0-9]+(\\.[0-9]+)+').firstMatch(fileName);
-    if (versionMatch == null) {
-      throw NoVersionError();
+    Response res = await get(Uri.parse('$standardUrl/en/download/android'));
+    if (res.statusCode == 200) {
+      var versions = parse(res.body)
+          .querySelectorAll('p')
+          .map((e) => e.innerHtml)
+          .where((p) => p.contains('Latest version: '))
+          .map((e) {
+            var match = RegExp('[0-9]+(\\.[0-9]+)*').firstMatch(e);
+            if (match == null) {
+              return '';
+            } else {
+              return e.substring(match.start, match.end);
+            }
+          })
+          .where((element) => element.isNotEmpty)
+          .toList();
+      if (versions.isEmpty) {
+        throw NoVersionError();
+      }
+      String? changeLog;
+      try {
+        changeLog = (await GitHub().getLatestAPKDetails(
+                'https://github.com/mullvad/mullvadvpn-app',
+                {'fallbackToOlderReleases': true}))
+            .changeLog;
+      } catch (e) {
+        // Ignore
+      }
+      return APKDetails(
+          versions[0],
+          ['https://mullvad.net/download/app/apk/latest'],
+          AppNames(name, 'Mullvad-VPN'),
+          changeLog: changeLog);
+    } else {
+      throw getObtainiumHttpError(res);
     }
-    details.version = fileName.substring(versionMatch.start, versionMatch.end);
-    details.names = AppNames(name, 'Mullvad-VPN');
-    try {
-      details.changeLog = (await GitHub().getLatestAPKDetails(
-              'https://github.com/mullvad/mullvadvpn-app',
-              {'fallbackToOlderReleases': true}))
-          .changeLog;
-    } catch (e) {
-      print(e);
-      // Ignore
-    }
-    return details;
   }
 }