Handle situations where there are multiple uploaders

Author: litetex

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

@@ -165,12 +165,45 @@ public String getUploaderName() throws ParsingException {
 
     @Override
     public String getUploaderUrl() throws ParsingException {
-        final String channelId = JsonUtils.getString(lockupViewModel,
-            "metadata.lockupMetadataViewModel.image.decoratedAvatarViewModel"
-                + ".rendererContext.commandContext.onTap"
-                + ".innertubeCommand.browseEndpoint.browseId");
+        final List<ParsingException> reportedExceptions = new ArrayList<>();
+
+        String channelId = null;
+        try {
+            channelId = JsonUtils.getString(lockupViewModel,
+                "metadata.lockupMetadataViewModel.image.decoratedAvatarViewModel"
+                    + ".rendererContext.commandContext.onTap"
+                    + ".innertubeCommand.browseEndpoint.browseId");
+        } catch (final ParsingException e) {
+            reportedExceptions.add(e);
+
+            // This might happen when a video has MULTIPLE uploaders -> Select first
+            try {
+                channelId = JsonUtils.getArray(lockupViewModel,
+                        "metadata.lockupMetadataViewModel.image.avatarStackViewModel"
+                            + ".rendererContext.commandContext.onTap.innertubeCommand"
+                            + ".showDialogCommand.panelLoadingStrategy.inlineContent"
+                            + ".dialogViewModel.customContent.listViewModel.listItems")
+                    .streamAsJsonObjects()
+                    .map(listItem -> listItem
+                        .getObject("listItemViewModel")
+                        .getObject("rendererContext")
+                        .getObject("commandContext")
+                        .getObject("onTap")
+                        .getObject("innertubeCommand")
+                        .getObject("browseEndpoint")
+                        .getString("browseId"))
+                    .findFirst()
+                    .orElse(null);
+            } catch (final ParsingException e2) {
+                reportedExceptions.add(e2);
+            }
+        }
+
         if (isNullOrEmpty(channelId)) {
-            throw new ParsingException("Could not get uploader url");
+            final ParsingException parsingException =
+                new ParsingException("Could not get uploader url");
+            reportedExceptions.forEach(parsingException::addSuppressed);
+            throw parsingException;
         }
         return YoutubeChannelLinkHandlerFactory.getInstance().getUrl(channelId);
     }