Fix first playlist page

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubePlaylistExtractor.java

@@ -13,15 +13,12 @@ import org.schabi.newpipe.extractor.downloader.Downloader;
 import org.schabi.newpipe.extractor.downloader.Response;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.exceptions.ParsingException;
-import org.schabi.newpipe.extractor.linkhandler.LinkHandlerFactory;
 import org.schabi.newpipe.extractor.linkhandler.ListLinkHandler;
 import org.schabi.newpipe.extractor.localization.TimeAgoParser;
 import org.schabi.newpipe.extractor.playlist.PlaylistExtractor;
 import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeParsingHelper;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItemsCollector;
-import org.schabi.newpipe.extractor.stream.StreamType;
-import org.schabi.newpipe.extractor.utils.Parser;
 import org.schabi.newpipe.extractor.utils.Utils;
 
 import java.io.IOException;
@@ -233,112 +230,23 @@ public class YoutubePlaylistExtractor extends PlaylistExtractor {
     private void collectStreamsFrom(@Nonnull StreamInfoItemsCollector collector, @Nullable Element element) {
         collector.reset();
 
-        if (element == null) {
-            return;
-        }
-
-        final LinkHandlerFactory streamLinkHandlerFactory = getService().getStreamLHFactory();
         final TimeAgoParser timeAgoParser = getTimeAgoParser();
 
-        for (final Element li : element.children()) {
+        JsonArray videos = initialData.getObject("contents").getObject("twoColumnBrowseResultsRenderer")
-            if (isDeletedItem(li)) {
+                .getArray("tabs").getObject(0).getObject("tabRenderer").getObject("content")
-                continue;
+                .getObject("sectionListRenderer").getArray("contents").getObject(0)
-            }
+                .getObject("itemSectionRenderer").getArray("contents").getObject(0)
-
+                .getObject("playlistVideoListRenderer").getArray("contents");
-            collector.commit(new YoutubeStreamInfoItemExtractor(li, timeAgoParser) {
-                public Element uploaderLink;
 
+        for (Object video : videos) {
+            if (((JsonObject) video).getObject("playlistVideoRenderer") != null) {
+                collector.commit(new YoutubeStreamInfoItemExtractor(((JsonObject) video).getObject("playlistVideoRenderer"), timeAgoParser) {
                     @Override
-                public boolean isAd() {
+                    public long getViewCount() {
-                    return false;
-                }
-
-                @Override
-                public String getUrl() throws ParsingException {
-                    try {
-                        return streamLinkHandlerFactory.fromId(li.attr("data-video-id")).getUrl();
-                    } catch (Exception e) {
-                        throw new ParsingException("Could not get web page url for the video", e);
-                    }
-                }
-
-                @Override
-                public String getName() throws ParsingException {
-                    try {
-                        return li.attr("data-title");
-                    } catch (Exception e) {
-                        throw new ParsingException("Could not get title", e);
-                    }
-                }
-
-                @Override
-                public long getDuration() throws ParsingException {
-                    try {
-                        if (getStreamType() == StreamType.LIVE_STREAM) return -1;
-
-                        Element first = li.select("div[class=\"timestamp\"] span").first();
-                        if (first == null) {
-                            // Video unavailable (private, deleted, etc.), this is a thing that happens specifically with playlists,
-                            // because in other cases, those videos don't even show up
                         return -1;
                     }
-
-                        return YoutubeParsingHelper.parseDurationString(first.text());
-                    } catch (Exception e) {
-                        throw new ParsingException("Could not get duration" + getUrl(), e);
-                    }
-                }
-
-
-                private Element getUploaderLink() {
-                    // should always be present since we filter deleted items
-                    if (uploaderLink == null) {
-                        uploaderLink = li.select("div[class=pl-video-owner] a").first();
-                    }
-                    return uploaderLink;
-                }
-
-                @Override
-                public String getUploaderName() throws ParsingException {
-                    return getUploaderLink().text();
-                }
-
-                @Override
-                public String getUploaderUrl() throws ParsingException {
-                    // this url is not always in the form "/channel/..."
-                    // sometimes Youtube provides urls in the from "/user/..."
-                    return getUploaderLink().attr("abs:href");
-                }
-
-                @Override
-                public String getTextualUploadDate() {
-                    return "";
-                }
-
-                @Override
-                public long getViewCount() throws ParsingException {
-                    return -1;
-                }
-
-                @Override
-                public String getThumbnailUrl() throws ParsingException {
-                    try {
-                        return "https://i.ytimg.com/vi/" + streamLinkHandlerFactory.fromUrl(getUrl()).getId() + "/hqdefault.jpg";
-                    } catch (Exception e) {
-                        throw new ParsingException("Could not get thumbnail url", e);
-                    }
-                }
                 });
             }
         }
-
-    /**
-     * Check if the playlist item is deleted
-     *
-     * @param li the list item
-     * @return true if the item is deleted
-     */
-    private boolean isDeletedItem(Element li) {
-        return li.select("div[class=pl-video-owner] a").isEmpty();
     }
 }

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeStreamInfoItemExtractor.java

@@ -1,7 +1,7 @@
 package org.schabi.newpipe.extractor.services.youtube.extractors;
 
 import com.grack.nanojson.JsonObject;
-import org.jsoup.nodes.Element;
+
 import org.schabi.newpipe.extractor.exceptions.ParsingException;
 import org.schabi.newpipe.extractor.localization.DateWrapper;
 import org.schabi.newpipe.extractor.localization.TimeAgoParser;
@@ -37,10 +37,6 @@ public class YoutubeStreamInfoItemExtractor implements StreamInfoItemExtractor {
     private JsonObject videoInfo;
     private final TimeAgoParser timeAgoParser;
 
-    public YoutubeStreamInfoItemExtractor(Element a, @Nullable TimeAgoParser timeAgoParser) {
-        this.timeAgoParser = timeAgoParser;
-    }
-
     /**
      * Creates an extractor of StreamInfoItems from a YouTube page.
      *
@@ -115,6 +111,12 @@ public class YoutubeStreamInfoItemExtractor implements StreamInfoItemExtractor {
                         .getObject(0).getString("text");
             } catch (Exception ignored) {}
         }
+        if (name == null) {
+            try {
+                name = videoInfo.getObject("shortBylineText").getArray("runs")
+                        .getObject(0).getString("text");
+            } catch (Exception ignored) {}
+        }
         if (name != null && !name.isEmpty()) return name;
         throw new ParsingException("Could not get uploader name");
     }
@@ -135,6 +137,13 @@ public class YoutubeStreamInfoItemExtractor implements StreamInfoItemExtractor {
                             .getObject("browseEndpoint").getString("browseId");
                 } catch (Exception ignored) {}
             }
+            if (id == null) {
+                try {
+                    id = videoInfo.getObject("shortBylineText").getArray("runs")
+                            .getObject(0).getObject("navigationEndpoint")
+                            .getObject("browseEndpoint").getString("browseId");
+                } catch (Exception ignored) {}
+            }
             if (id == null || id.isEmpty()) {
                 throw new IllegalArgumentException("is empty");
             }