Version 1.10.1

CHANGELOG.md

@@ -1,3 +1,8 @@
+## 1.10.1
+- Fix issue #146: Closed Captions couldn't be extracted anymore.
+- Code cleanup.
+- 
+
 ## 1.10.0
 - Fix issue #144: get_video_info was removed from yt.
 - Min sdk version now is 2.13.0 

lib/src/common/engagement.dart

@@ -5,7 +5,6 @@ part 'engagement.freezed.dart';
 /// User activity statistics.
 @freezed
 class Engagement with _$Engagement {
-  const Engagement._();
 
   const factory Engagement(
     /// View count.
@@ -18,6 +17,8 @@ class Engagement with _$Engagement {
     int? dislikeCount,
   ) = _Engagement;
 
+  const Engagement._();
+
   /// Average user rating in stars (1 star to 5 stars).
   /// Returns -1 if likeCount or dislikeCount is null.
   num get avgRating {

lib/src/reverse_engineering/pages/channel_page.dart

@@ -1,11 +1,11 @@
 import 'package:html/parser.dart' as parser;
-import 'package:youtube_explode_dart/src/reverse_engineering/models/youtube_page.dart';
 
 import '../../exceptions/exceptions.dart';
 import '../../extensions/helpers_extension.dart';
 import '../../retry.dart';
-import '../youtube_http_client.dart';
 import '../models/initial_data.dart';
+import '../models/youtube_page.dart';
+import '../youtube_http_client.dart';
 
 ///
 class ChannelPage extends YoutubePage<_InitialData> {

lib/src/reverse_engineering/pages/channel_upload_page.dart

@@ -1,15 +1,14 @@
 import 'package:collection/collection.dart';
-import 'package:html/dom.dart';
 import 'package:html/parser.dart' as parser;
-import 'package:youtube_explode_dart/src/reverse_engineering/models/youtube_page.dart';
 
 import '../../channels/channel_video.dart';
 import '../../exceptions/exceptions.dart';
 import '../../extensions/helpers_extension.dart';
 import '../../retry.dart';
 import '../../videos/videos.dart';
-import '../youtube_http_client.dart';
 import '../models/initial_data.dart';
+import '../models/youtube_page.dart';
+import '../youtube_http_client.dart';
 
 ///
 class ChannelUploadPage extends YoutubePage<_InitialData> {

lib/src/reverse_engineering/pages/playlist_page.dart

@@ -1,12 +1,12 @@
 import 'package:collection/collection.dart';
 import 'package:html/parser.dart' as parser;
-import 'package:youtube_explode_dart/src/reverse_engineering/models/youtube_page.dart';
 
 import '../../../youtube_explode_dart.dart';
 import '../../extensions/helpers_extension.dart';
 import '../../retry.dart';
-import '../youtube_http_client.dart';
 import '../models/initial_data.dart';
+import '../models/youtube_page.dart';
+import '../youtube_http_client.dart';
 
 ///
 class PlaylistPage extends YoutubePage<_InitialData> {

lib/src/reverse_engineering/pages/search_page.dart

@@ -11,8 +11,8 @@ import '../../search/related_query.dart';
 import '../../search/search_filter.dart';
 import '../../search/search_video.dart';
 import '../../videos/videos.dart';
-import '../youtube_http_client.dart';
 import '../models/initial_data.dart';
+import '../youtube_http_client.dart';
 
 ///
 class SearchPage extends YoutubePage<_InitialData> {

lib/src/reverse_engineering/pages/watch_page.dart

@@ -1,16 +1,16 @@
 import 'package:collection/collection.dart';
 import 'package:html/dom.dart';
 import 'package:html/parser.dart' as parser;
-import 'package:youtube_explode_dart/src/reverse_engineering/models/youtube_page.dart';
 
 import '../../../youtube_explode_dart.dart';
 import '../../extensions/helpers_extension.dart';
 import '../../retry.dart';
 import '../../videos/video_id.dart';
+import '../models/initial_data.dart';
+import '../models/youtube_page.dart';
 import '../player/player_response.dart';
 import '../youtube_http_client.dart';
 import 'player_config_base.dart';
-import '../models/initial_data.dart';
 
 ///
 class WatchPage extends YoutubePage<_InitialData> {
@@ -21,12 +21,11 @@ class WatchPage extends YoutubePage<_InitialData> {
   static final RegExp _visitorInfoLiveExp =
       RegExp('VISITOR_INFO1_LIVE=([^;]+)');
   static final RegExp _yscExp = RegExp('YSC=([^;]+)');
-  static final RegExp _playerResponseExp =
-      RegExp(r'var\s+ytInitialPlayerResponse\s*=\s*(\{.*\})');
 
-  static final _xsfrTokenExp = RegExp(r'"XSRF_TOKEN"\s*:\s*"(.+?)"');
 
   @override
+  // Overridden to be non-nullable.
+  // ignore: overridden_fields
   final Document root;
 
   ///
@@ -48,18 +47,6 @@ class WatchPage extends YoutubePage<_InitialData> {
     return 'https://youtube.com$url';
   }
 
-  late final String xsfrToken = getXsfrToken()!.replaceAll(r'\u003d', '=');
-
-  ///
-  String? getXsfrToken() {
-    return _xsfrTokenExp
-        .firstMatch(root
-            .querySelectorAll('script')
-            .firstWhere((e) => _xsfrTokenExp.hasMatch(e.text))
-            .text)
-        ?.group(1);
-  }
-
   ///
   bool get isOk => root.body?.querySelector('#player') != null;
 

lib/src/reverse_engineering/player/player_response.dart

@@ -148,8 +148,8 @@ class ClosedCaptionTrack {
   String get languageCode => root.getT<String>('languageCode')!;
 
   ///
-  String get languageName =>
+  String? get languageName =>
-      root.get('name')!.getT<List<dynamic>>('runs')!.parseRuns();
+      root.get('name')!.getT<String>('simpleText');
 
   ///
   bool get autoGenerated =>

lib/src/reverse_engineering/responses/video_info_client.dart

@@ -1,15 +1,16 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
 import 'package:http_parser/http_parser.dart';
 
 import '../../exceptions/exceptions.dart';
 import '../../extensions/helpers_extension.dart';
 import '../../retry.dart';
-import '../youtube_http_client.dart';
-import '../player/player_response.dart';
 import '../models/stream_info_provider.dart';
+import '../player/player_response.dart';
+import '../youtube_http_client.dart';
 
 ///
 ///
-@deprecated
+@Deprecated('This endpoint is not supported anymore.')
 class VideoInfoClient {
   final Map<String, String> root;
 
@@ -51,6 +52,7 @@ class VideoInfoClient {
   VideoInfoClient.parse(String raw) : root = Uri.splitQueryString(raw);
 
   ///
+  @alwaysThrows
   static Future<VideoInfoClient> get(
       YoutubeHttpClient httpClient, String videoId,
       [String? sts]) {

lib/src/search/search_video.dart

@@ -37,6 +37,7 @@ class SearchVideo with _$SearchVideo, BaseSearchContent {
     String? uploadDate,
 
     /// True if this video is a live stream.
+    // ignore: avoid_positional_boolean_parameters
     bool isLive,
 
     /// Channel id

lib/src/search/search_video.freezed.dart

@@ -72,6 +72,7 @@ mixin _$SearchVideo {
   String? get uploadDate => throw _privateConstructorUsedError;
 
   /// True if this video is a live stream.
+// ignore: avoid_positional_boolean_parameters
   bool get isLive => throw _privateConstructorUsedError;
 
   /// Channel id
@@ -317,6 +318,7 @@ class _$_SearchVideo with BaseSearchContent implements _SearchVideo {
   @override
 
   /// True if this video is a live stream.
+// ignore: avoid_positional_boolean_parameters
   final bool isLive;
   @override
 
@@ -428,6 +430,7 @@ abstract class _SearchVideo implements SearchVideo, BaseSearchContent {
   @override
 
   /// True if this video is a live stream.
+// ignore: avoid_positional_boolean_parameters
   bool get isLive => throw _privateConstructorUsedError;
   @override
 

lib/src/videos/closed_captions/closed_caption_client.dart

@@ -1,7 +1,8 @@
+import 'package:youtube_explode_dart/src/reverse_engineering/pages/watch_page.dart';
+
 import '../../extensions/helpers_extension.dart';
 import '../../reverse_engineering/responses/closed_caption_client.dart' as re
     show ClosedCaptionClient;
-import '../../reverse_engineering/responses/video_info_client.dart';
 import '../../reverse_engineering/youtube_http_client.dart';
 import '../videos.dart';
 import 'closed_caption.dart';
@@ -34,16 +35,16 @@ class ClosedCaptionClient {
       ]}) async {
     videoId = VideoId.fromString(videoId);
     var tracks = <ClosedCaptionTrackInfo>{};
-    var videoInfoResponse =
+    var watchPage =
-        await VideoInfoClient.get(_httpClient, videoId.value);
+        await WatchPage.get(_httpClient, videoId.value);
-    var playerResponse = videoInfoResponse.playerResponse;
+    var playerResponse = watchPage.playerResponse!;
 
     for (final track in playerResponse.closedCaptionTrack) {
       for (final ext in formats) {
         tracks.add(ClosedCaptionTrackInfo(
             Uri.parse(track.url)
                 .replaceQueryParameters({'fmt': ext.formatCode}),
-            Language(track.languageCode, track.languageName),
+            Language(track.languageCode, track.languageName ?? ''),
             isAutoGenerated: track.autoGenerated,
             format: ext));
       }

lib/src/videos/closed_captions/language.dart

@@ -13,14 +13,11 @@ class Language with _$Language {
       /// ISO 639-1 code of this language.
       String code,
 
-      /// Full English name of this language.
+      /// Full English name of this language. This could be an empty string.
       String name) = _Language;
 
   const Language._();
 
-  @override
-  String toString() => 'Language: $name';
-
   ///
   factory Language.fromJson(Map<String, dynamic> json) =>
       _$LanguageFromJson(json);

lib/src/videos/closed_captions/language.freezed.dart

@@ -40,7 +40,7 @@ mixin _$Language {
   /// ISO 639-1 code of this language.
   String get code => throw _privateConstructorUsedError;
 
-  /// Full English name of this language.
+  /// Full English name of this language. This could be an empty string.
   String get name => throw _privateConstructorUsedError;
 
   Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
@@ -131,9 +131,14 @@ class _$_Language extends _Language {
   final String code;
   @override
 
-  /// Full English name of this language.
+  /// Full English name of this language. This could be an empty string.
   final String name;
 
+  @override
+  String toString() {
+    return 'Language(code: $code, name: $name)';
+  }
+
   @override
   bool operator ==(dynamic other) {
     return identical(this, other) ||
@@ -173,7 +178,7 @@ abstract class _Language extends Language {
   String get code => throw _privateConstructorUsedError;
   @override
 
-  /// Full English name of this language.
+  /// Full English name of this language. This could be an empty string.
   String get name => throw _privateConstructorUsedError;
   @override
   @JsonKey(ignore: true)

lib/src/videos/comments/comments_client.dart

@@ -1,7 +1,6 @@
 import 'package:freezed_annotation/freezed_annotation.dart';
 
 import '../../channels/channel_id.dart';
-import '../../extensions/helpers_extension.dart';
 import '../../reverse_engineering/responses/comments_client.dart' as re;
 import '../../reverse_engineering/youtube_http_client.dart';
 import '../videos.dart';

lib/src/videos/streams/bitrate.dart

@@ -26,9 +26,6 @@ class Bitrate with Comparable<Bitrate>, _$Bitrate {
   @override
   int compareTo(Bitrate other) => bitsPerSecond.compareTo(other.bitsPerSecond);
 
-  @override
-  List<Object> get props => [bitsPerSecond];
-
   String _getLargestSymbol() {
     if (gigaBitsPerSecond.abs() >= 1) {
       return 'Gbit/s';

lib/src/videos/streams/streams_client.dart

@@ -4,10 +4,8 @@ import '../../reverse_engineering/cipher/cipher_operations.dart';
 import '../../reverse_engineering/dash_manifest.dart';
 import '../../reverse_engineering/heuristics.dart';
 import '../../reverse_engineering/models/stream_info_provider.dart';
-import '../../reverse_engineering/pages/embed_page.dart';
 import '../../reverse_engineering/pages/watch_page.dart';
 import '../../reverse_engineering/player/player_source.dart';
-import '../../reverse_engineering/responses/video_info_client.dart';
 import '../../reverse_engineering/youtube_http_client.dart';
 import '../video_id.dart';
 import 'bitrate.dart';
@@ -37,7 +35,8 @@ class StreamsClient {
     return DashManifest.get(_httpClient, dashManifestUrl);
   }
 
-  Future<StreamContext> _getStreamContextFromVideoInfo(VideoId videoId) async {
+  // Not used anymore since Youtube removed the `video_info` endpoint.
+/*  Future<StreamContext> _getStreamContextFromVideoInfo(VideoId videoId) async {
     var embedPage = await EmbedPage.get(_httpClient, videoId.toString());
     var playerConfig = embedPage.playerConfig;
     if (playerConfig == null) {
@@ -79,7 +78,7 @@ class StreamsClient {
       streamInfoProviders.addAll(dashManifest.streams);
     }
     return StreamContext(streamInfoProviders, cipherOperations);
-  }
+  }*/
 
   Future<StreamContext> _getStreamContextFromWatchPage(VideoId videoId) async {
     final watchPage = await WatchPage.get(_httpClient, videoId.toString());

lib/src/videos/video_client.dart

@@ -1,5 +1,3 @@
-import 'package:youtube_explode_dart/src/reverse_engineering/player/player_response.dart';
-
 import '../channels/channel_id.dart';
 import '../common/common.dart';
 import '../extensions/helpers_extension.dart';

lib/src/videos/video_id.dart

@@ -11,13 +11,6 @@ class VideoId with _$VideoId {
   static final _shortMatchExp = RegExp(r'youtu\.be/(.*?)(?:\?|&|/|$)');
   static final _embedMatchExp = RegExp(r'youtube\..+?/embed/(.*?)(?:\?|&|/|$)');
 
-  const VideoId._();
-
-  const factory VideoId._internal(
-
-      /// ID as string.
-      String value) = _VideoId;
-
   /// Initializes an instance of [VideoId] with a url or video id.
   factory VideoId(String idOrUrl) {
     final id = parseVideoId(idOrUrl);
@@ -29,6 +22,13 @@ class VideoId with _$VideoId {
     return VideoId._internal(id);
   }
 
+  const VideoId._();
+
+  const factory VideoId._internal(
+
+      /// ID as string.
+      String value) = _VideoId;
+
   ///  Converts [obj] to a [VideoId] by calling .toString on that object.
   /// If it is already a [VideoId], [obj] is returned
   factory VideoId.fromString(dynamic obj) {

pubspec.yaml

@@ -1,6 +1,6 @@
 name: youtube_explode_dart
 description: A port in dart of the youtube explode library. Supports several API functions without the need of Youtube API Key.
-version: 1.10.0
+version: 1.10.1
 
 homepage: https://github.com/Hexer10/youtube_explode_dart