[YouTube] Add running lives extractor from Live system channel

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeService.java

@@ -36,9 +36,11 @@ import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeStreamExt
 import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeSubscriptionExtractor;
 import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeSuggestionExtractor;
 import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeTrendingExtractor;
+import org.schabi.newpipe.extractor.services.youtube.extractors.kiosk.YoutubeLiveExtractor;
 import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeChannelLinkHandlerFactory;
 import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeChannelTabLinkHandlerFactory;
 import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeCommentsLinkHandlerFactory;
+import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeLiveLinkHandlerFactory;
 import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubePlaylistLinkHandlerFactory;
 import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeSearchQueryHandlerFactory;
 import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeStreamLinkHandlerFactory;
@@ -154,17 +156,26 @@ public class YoutubeService extends StreamingService {
     @Override
     public KioskList getKioskList() throws ExtractionException {
         final KioskList list = new KioskList(this);
-        final ListLinkHandlerFactory h = YoutubeTrendingLinkHandlerFactory.getInstance();
+        final ListLinkHandlerFactory trendingLHF = YoutubeTrendingLinkHandlerFactory.getInstance();
+        final ListLinkHandlerFactory runningLivesLHF =
+                YoutubeLiveLinkHandlerFactory.INSTANCE;
 
-        // add kiosks here e.g.:
         try {
+            list.addKioskEntry(
+                    (streamingService, url, id) -> new YoutubeLiveExtractor(
+                            YoutubeService.this,
+                            runningLivesLHF.fromUrl(url),
+                            id),
+                    runningLivesLHF,
+                    YoutubeLiveLinkHandlerFactory.KIOSK_ID
+            );
             list.addKioskEntry(
                     (streamingService, url, id) -> new YoutubeTrendingExtractor(
                             YoutubeService.this,
-                            h.fromUrl(url),
+                            trendingLHF.fromUrl(url),
                             id
                     ),
-                    h,
+                    trendingLHF,
                     YoutubeTrendingExtractor.KIOSK_ID
             );
             list.setDefaultKiosk(YoutubeTrendingExtractor.KIOSK_ID);

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

@@ -0,0 +1,14 @@
+package org.schabi.newpipe.extractor.services.youtube.extractors.kiosk;
+
+import org.schabi.newpipe.extractor.StreamingService;
+import org.schabi.newpipe.extractor.linkhandler.ListLinkHandler;
+
+public class YoutubeLiveExtractor extends YoutubeDesktopBaseKioskExtractor {
+
+    public YoutubeLiveExtractor(final StreamingService streamingService,
+                                final ListLinkHandler linkHandler,
+                                final String kioskId) {
+        super(streamingService, linkHandler, kioskId, "UC4R8DWoMoI7CAwX8_LjQHig",
+                "EgdsaXZldGFikgEDCKEK");
+    }
+}

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/linkHandler/YoutubeLiveLinkHandlerFactory.java

@@ -0,0 +1,53 @@
+package org.schabi.newpipe.extractor.services.youtube.linkHandler;
+
+import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.isInvidiousURL;
+import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.isYoutubeURL;
+
+import org.schabi.newpipe.extractor.exceptions.ParsingException;
+import org.schabi.newpipe.extractor.linkhandler.ListLinkHandlerFactory;
+import org.schabi.newpipe.extractor.utils.Utils;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.List;
+
+public final class YoutubeLiveLinkHandlerFactory extends ListLinkHandlerFactory {
+
+    public static final String KIOSK_ID = "live";
+
+    public static final YoutubeLiveLinkHandlerFactory INSTANCE =
+            new YoutubeLiveLinkHandlerFactory();
+
+    private static final String LIVE_CHANNEL_PATH = "/channel/UC4R8DWoMoI7CAwX8_LjQHig/livetab";
+    private static final String LIVE_CHANNEL_TAB_PARAMS = "ss=CKEK";
+
+    private YoutubeLiveLinkHandlerFactory() {
+    }
+
+    @Override
+    public String getUrl(final String id,
+                         final List<String> contentFilters,
+                         final String sortFilter)
+            throws ParsingException, UnsupportedOperationException {
+        return "https://www.youtube.com" + LIVE_CHANNEL_PATH + "?" + LIVE_CHANNEL_TAB_PARAMS;
+    }
+
+    @Override
+    public String getId(final String url) throws ParsingException, UnsupportedOperationException {
+        return KIOSK_ID;
+    }
+
+    @Override
+    public boolean onAcceptUrl(final String url) {
+        final URL urlObj;
+        try {
+            urlObj = Utils.stringToURL(url);
+        } catch (final MalformedURLException e) {
+            return false;
+        }
+
+        return Utils.isHTTP(urlObj) && (isYoutubeURL(urlObj) || isInvidiousURL(urlObj))
+                && LIVE_CHANNEL_PATH.equals(urlObj.getPath())
+                && LIVE_CHANNEL_TAB_PARAMS.equals(urlObj.getQuery());
+    }
+}