Added farsroid.com as a source (#2435)

lib/app_sources/farsroid.dart

@@ -0,0 +1,76 @@
+import 'dart:convert';
+
+import 'package:html/parser.dart';
+import 'package:obtainium/app_sources/html.dart';
+import 'package:obtainium/custom_errors.dart';
+import 'package:obtainium/providers/source_provider.dart';
+
+class Farsroid extends AppSource {
+  Farsroid() {
+    hosts = ['farsroid.com'];
+    name = 'Farsroid';
+  }
+
+  @override
+  String sourceSpecificStandardizeURL(String url, {bool forSelection = false}) {
+    RegExp standardUrlRegEx = RegExp(
+      '^https?://([^\\.]+\\.)${getSourceRegex(hosts)}/[^/]+',
+      caseSensitive: false,
+    );
+    RegExpMatch? match = standardUrlRegEx.firstMatch(url);
+    if (match == null) {
+      throw InvalidURLError(name);
+    }
+    return match.group(0)!;
+  }
+
+  @override
+  Future<APKDetails> getLatestAPKDetails(
+    String standardUrl,
+    Map<String, dynamic> additionalSettings,
+  ) async {
+    String appName = Uri.parse(standardUrl).pathSegments.last;
+
+    var res = await sourceRequest(standardUrl, additionalSettings);
+    if (res.statusCode != 200) {
+      throw getObtainiumHttpError(res);
+    }
+    var html = parse(res.body);
+    var dlinks = html.querySelectorAll('.download-links');
+    if (dlinks.isEmpty) {
+      throw NoReleasesError();
+    }
+    var postId = dlinks.first.attributes['data-post-id'] ?? '';
+    var version = dlinks.first.attributes['data-post-version'] ?? '';
+
+    if (postId.isEmpty || version.isEmpty) {
+      throw NoVersionError();
+    }
+
+    var res2 = await sourceRequest(
+      Uri.encodeFull(
+        'https://${hosts[0]}/api/download-box/?post_id=$postId&post_version=$version',
+      ),
+      additionalSettings,
+    );
+    var html2 = jsonDecode(res2.body)?['data']?['content'] as String? ?? '';
+    if (html2.isEmpty) {
+      throw NoAPKError();
+    }
+    var apkLinks =
+        (await grabLinksCommon(html2, res2.request!.url, additionalSettings))
+            .map((l) => MapEntry(Uri.parse(l.key).pathSegments.last, l.key))
+            .where(
+              (l) => l.key.toLowerCase().startsWith(
+                '$appName-$version'.toLowerCase(),
+              ),
+            )
+            .toList();
+
+    if (apkLinks.isEmpty) {
+      throw NoAPKError();
+    }
+
+    return APKDetails(version, apkLinks, AppNames(name, appName));
+  }
+}

lib/app_sources/html.dart

@@ -113,14 +113,23 @@ List<MapEntry<String, String>> getLinksInLines(String lines) =>
 
 // Given an HTTP response, grab some links according to the common additional settings
 // (those that apply to intermediate and final steps)
-Future<List<MapEntry<String, String>>> grabLinksCommon(
+Future<List<MapEntry<String, String>>> grabLinksCommonFromRes(
   Response res,
   Map<String, dynamic> additionalSettings,
 ) async {
   if (res.statusCode != 200) {
     throw getObtainiumHttpError(res);
   }
-  var html = parse(res.body);
+  return grabLinksCommon(res.body, res.request!.url, additionalSettings);
+}
+
+// Note keys are URLs, values are filenames (opposite to the AppSource apkUrls)
+Future<List<MapEntry<String, String>>> grabLinksCommon(
+  String rawBody,
+  Uri reqUrl,
+  Map<String, dynamic> additionalSettings,
+) async {
+  var html = parse(rawBody);
   List<MapEntry<String, String>> allLinks = html
       .querySelectorAll('a')
       .map(
@@ -132,21 +141,21 @@ Future<List<MapEntry<String, String>>> grabLinksCommon(
         ),
       )
       .where((element) => element.key.isNotEmpty)
-      .map((e) => MapEntry(ensureAbsoluteUrl(e.key, res.request!.url), e.value))
+      .map((e) => MapEntry(ensureAbsoluteUrl(e.key, reqUrl), e.value))
       .toList();
   if (allLinks.isEmpty) {
-    allLinks = getLinksInLines(res.body);
+    allLinks = getLinksInLines(rawBody);
   }
   if (allLinks.isEmpty) {
     // Getting desperate
     try {
-      var jsonStrings = collectAllStringsFromJSONObject(jsonDecode(res.body));
+      var jsonStrings = collectAllStringsFromJSONObject(jsonDecode(rawBody));
       allLinks = getLinksInLines(jsonStrings.join('\n'));
       if (allLinks.isEmpty) {
         allLinks = getLinksInLines(
           jsonStrings
               .map((l) {
-                return ensureAbsoluteUrl(l, res.request!.url);
+                return ensureAbsoluteUrl(l, reqUrl);
               })
               .join('\n'),
         );
@@ -368,7 +377,7 @@ class HTML extends AppSource {
             .where((l) => l['customLinkFilterRegex'].isNotEmpty == true)
             .toList();
     for (int i = 0; i < (additionalSettings['intermediateLink'].length); i++) {
-      var intLinks = await grabLinksCommon(
+      var intLinks = await grabLinksCommonFromRes(
         await sourceRequest(currentUrl, additionalSettings),
         additionalSettings['intermediateLink'][i],
       );
@@ -392,7 +401,7 @@ class HTML extends AppSource {
           .join('\n')
           .split('\n')
           .join('\\n');
-      links = await grabLinksCommon(res, additionalSettings);
+      links = await grabLinksCommonFromRes(res, additionalSettings);
       links = filterApks(
         links,
         additionalSettings['apkFilterRegEx'],

lib/providers/source_provider.dart

@@ -16,6 +16,7 @@ import 'package:obtainium/app_sources/aptoide.dart';
 import 'package:obtainium/app_sources/codeberg.dart';
 import 'package:obtainium/app_sources/coolapk.dart';
 import 'package:obtainium/app_sources/directAPKLink.dart';
+import 'package:obtainium/app_sources/farsroid.dart';
 import 'package:obtainium/app_sources/fdroid.dart';
 import 'package:obtainium/app_sources/fdroidrepo.dart';
 import 'package:obtainium/app_sources/github.dart';
@@ -63,11 +64,13 @@ class APKDetails {
   });
 }
 
-List<List<String>> stringMapListTo2DList(List<MapEntry<String, String>> mapList) =>
-    mapList.map((e) => [e.key, e.value]).toList();
+List<List<String>> stringMapListTo2DList(
+  List<MapEntry<String, String>> mapList,
+) => mapList.map((e) => [e.key, e.value]).toList();
 
-List<MapEntry<String, String>> assumed2DlistToStringMapList(List<dynamic> arr) =>
-    arr.map((e) => MapEntry(e[0] as String, e[1] as String)).toList();
+List<MapEntry<String, String>> assumed2DlistToStringMapList(
+  List<dynamic> arr,
+) => arr.map((e) => MapEntry(e[0] as String, e[1] as String)).toList();
 
 // App JSON schema has changed multiple times over the many versions of Obtainium
 // This function takes an App JSON and modifies it if needed to conform to the latest (current) version
@@ -1074,6 +1077,7 @@ class SourceProvider {
     Jenkins(),
     APKMirror(),
     RuStore(),
+    Farsroid(),
     TelegramApp(),
     NeutronCode(),
     DirectAPKLink(),