FIXED GITHUB ISSUE

README.md

@@ -16,7 +16,7 @@ Currently supported App sources:
 ## 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 some sources, data is gathered using Web scraping and can easily break due to changes in website design. In such cases, more reliable methods are either unavailable (e.g. Mullvad), insufficient (e.g. GitHub RSS) or subject to rate limits (e.g. GitHub API).
+- 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
 

lib/main.dart

@@ -12,7 +12,7 @@ import 'package:dynamic_color/dynamic_color.dart';
 import 'package:device_info_plus/device_info_plus.dart';
 
 const String currentReleaseTag =
-    'v0.1.8-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() {

lib/providers/source_provider.dart

@@ -71,6 +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
@@ -98,44 +104,53 @@ class GitHub implements AppSource {
     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 {
-    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;
     }
   }
 
@@ -156,7 +171,7 @@ class GitLab implements AppSource {
     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);
   }
@@ -184,18 +199,18 @@ class GitLab implements AppSource {
             .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;
     }
   }
 
@@ -223,15 +238,15 @@ 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;
     }
   }
 
@@ -248,7 +263,7 @@ class FDroid implements AppSource {
     RegExp standardUrlRegEx = RegExp('^https?://$host/[^/]+/packages/[^/]+');
     RegExpMatch? match = standardUrlRegEx.firstMatch(url.toLowerCase());
     if (match == null) {
-      throw 'Not a valid URL';
+      throw notValidURL;
     }
     return url.substring(0, match.end);
   }
@@ -263,7 +278,7 @@ class FDroid implements AppSource {
           ?.querySelector('.package-version-download a')
           ?.attributes['href'];
       if (apkUrl == null) {
-        throw 'No APK found';
+        throw noAPKFound;
       }
       var version = latestReleaseDiv
           ?.querySelector('.package-version-header b')
@@ -271,11 +286,11 @@ class FDroid implements AppSource {
           .split(' ')
           .last;
       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;
     }
   }
 
@@ -295,7 +310,7 @@ class Mullvad implements AppSource {
     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);
   }
@@ -311,12 +326,12 @@ class Mullvad implements AppSource {
           ?.split('/')
           .last;
       if (version == null) {
-        throw 'Could not determine the latest release version';
+        throw couldNotFindLatestVersion;
       }
       return APKDetails(
           version, ['https://mullvad.net/download/app/apk/latest']);
     } else {
-      throw 'Unable to fetch release info';
+      throw couldNotFindReleases;
     }
   }
 

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: 0.1.8+9 # 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'