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[YouTube] Fallback to playlist uploader on course playlists #71

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Merged
ShareASmile merged 2 commits into from
Mar 2, 2026
Merged

[YouTube] Fallback to playlist uploader on course playlists #71

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f852228
[YouTube] Fallback to playlist uploader on course playlists
FineFindus Jan 5, 2026
5a5d690
[YouTube] only apply course-playlists fallback for courses
FineFindus Jan 6, 2026
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46 changes: 45 additions & 1 deletion ...va/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubePlaylistExtractor.java
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@
import org.schabi.newpipe.extractor.stream.Description;
import org.schabi.newpipe.extractor.stream.StreamInfoItem;
import org.schabi.newpipe.extractor.stream.StreamInfoItemsCollector;
import org.schabi.newpipe.extractor.utils.JsonUtils;
import org.schabi.newpipe.extractor.utils.Utils;

import java.io.IOException;
Expand Down Expand Up @@ -61,6 +62,7 @@ public class YoutubePlaylistExtractor extends PlaylistExtractor {
private JsonObject playlistHeader;

private boolean isNewPlaylistInterface;
private Boolean isCoursePlaylist = null;

public YoutubePlaylistExtractor(final StreamingService service,
final ListLinkHandler linkHandler) {
Expand Down Expand Up @@ -175,6 +177,31 @@ private JsonObject getPlaylistHeader() {
return playlistHeader;
}

private Boolean isCoursePlaylist() {
if (isCoursePlaylist == null) {
try {
isCoursePlaylist = JsonUtils.getArray(getPlaylistHeader(),
"onDescriptionTap.commandExecutorCommand.commands")
.stream()
.filter(JsonObject.class::isInstance)
.map(JsonObject.class::cast)
.anyMatch(object -> {
try {
final String tag = JsonUtils.getString(object,
"showEngagementPanelEndpoint.identifier.tag");
return tag.equals("engagement-panel-course-metadata");
} catch (final ParsingException e) {
return false;
}
});
System.out.println(isCoursePlaylist);
} catch (final Exception e) {
isCoursePlaylist = false;
}
}
return isCoursePlaylist;
}

@Nonnull
@Override
public String getName() throws ParsingException {
Expand Down Expand Up @@ -420,13 +447,30 @@ private Page getNextPageFrom(final JsonArray contents)
private void collectStreamsFrom(@Nonnull final StreamInfoItemsCollector collector,
@Nonnull final JsonArray videos) {
final TimeAgoParser timeAgoParser = getTimeAgoParser();
final PlaylistExtractor playlistExtractor = this;
videos.stream()
.filter(JsonObject.class::isInstance)
.map(JsonObject.class::cast)
.forEach(video -> {
if (video.has(PLAYLIST_VIDEO_RENDERER)) {
collector.commit(new YoutubeStreamInfoItemExtractor(
video.getObject(PLAYLIST_VIDEO_RENDERER), timeAgoParser));
video.getObject(PLAYLIST_VIDEO_RENDERER), timeAgoParser) {
@Override
public String getUploaderName() throws ParsingException {
if (isCoursePlaylist()) {
return playlistExtractor.getUploaderName();
}
return super.getUploaderName();
}

@Override
public String getUploaderUrl() throws ParsingException {
if (isCoursePlaylist()) {
return playlistExtractor.getUploaderUrl();
}
return super.getUploaderUrl();
}
});
} else if (video.has(RICH_ITEM_RENDERER)) {
final JsonObject richItemRenderer = video.getObject(RICH_ITEM_RENDERER);
if (richItemRenderer.has("content")) {
Expand Down
21 changes: 20 additions & 1 deletion ...test/java/org/schabi/newpipe/extractor/services/youtube/YoutubePlaylistExtractorTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -513,7 +513,7 @@ public static class MembersOnlyTests implements InitYoutubeTest {
void testOnlyMembersOnlyVideos() throws Exception {
final YoutubePlaylistExtractor extractor = (YoutubePlaylistExtractor) YouTube
.getPlaylistExtractor(
// auto-generated playlist with only membersOnly videos
// autogenerated playlist with only membersOnly videos
"https://www.youtube.com/playlist?list=UUMOQuLXlFNAeDJMSmuzHU5axw");
extractor.fetchPage();

Expand All @@ -530,4 +530,23 @@ void testOnlyMembersOnlyVideos() throws Exception {
assertTrue(membershipVideos.isEmpty());
}
}

public static class CoursePlaylistTest implements InitYoutubeTest {

@Test
void uploaderName() throws Exception {
final YoutubePlaylistExtractor extractor = (YoutubePlaylistExtractor) YouTube
.getPlaylistExtractor(
"https://www.youtube.com/playlist?list=PLWxziGKTUvQFIsbbFcTZz7jOT4TMGnZBh");
extractor.fetchPage();

final List<StreamInfoItem> allItems = extractor.getInitialPage().getItems()
.stream()
.filter(StreamInfoItem.class::isInstance)
.map(StreamInfoItem.class::cast)
.collect(Collectors.toUnmodifiableList());
assertEquals(14, allItems.size());
assertEquals(extractor.getUploaderName(), allItems.get(0).getUploaderName());
}
}
}
101 changes: 101 additions & 0 deletions .../extractor/services/youtube/youtubeplaylistextractor/courseplaylist/generated_mock_0.json
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@@ -0,0 +1,101 @@
{
"request": {
"httpMethod": "GET",
"url": "https://www.youtube.com/sw.js",
"headers": {
"Origin": [
"https://www.youtube.com"
],
"Referer": [
"https://www.youtube.com"
],
"Accept-Language": [
"en-GB, en;q\u003d0.9"
]
},
"localization": {
"languageCode": "en",
"countryCode": "GB"
}
},
"response": {
"responseCode": 200,
"responseMessage": "",
"responseHeaders": {
"accept-ch": [
"Sec-CH-Viewport-Width, Sec-CH-DPR, Device-Memory"
],
"access-control-allow-credentials": [
"true"
],
"access-control-allow-origin": [
"https://www.youtube.com"
],
"alt-svc": [
"h3\u003d\":443\"; ma\u003d2592000,h3-29\u003d\":443\"; ma\u003d2592000"
],
"cache-control": [
"private, max-age\u003d0"
],
"content-security-policy": [
"script-src \u0027unsafe-eval\u0027 \u0027self\u0027 \u0027unsafe-inline\u0027 https://www.google.com https://apis.google.com https://ssl.gstatic.com https://www.gstatic.com https://www.googletagmanager.com https://www.google-analytics.com https://*.youtube.com https://*.google.com https://*.gstatic.com https://youtube.com https://www.youtube.com https://google.com https://*.doubleclick.net https://*.googleapis.com https://www.googleadservices.com https://tpc.googlesyndication.com https://www.youtubekids.com https://www.youtube-nocookie.com https://www.youtubeeducation.com https://www-onepick-opensocial.googleusercontent.com;report-uri https://csp.withgoogle.com/csp/youtube_main/allowlist",
"require-trusted-types-for \u0027script\u0027"
],
"content-type": [
"text/javascript; charset\u003dutf-8"
],
"cross-origin-opener-policy": [
"same-origin; report-to\u003d\"youtube_main\""
],
"date": [
"Mon, 05 Jan 2026 19:58:36 GMT"
],
"document-policy": [
"include-js-call-stacks-in-crash-reports"
],
"expires": [
"Mon, 05 Jan 2026 19:58:36 GMT"
],
"origin-trial": [
"AmhMBR6zCLzDDxpW+HfpP67BqwIknWnyMOXOQGfzYswFmJe+fgaI6XZgAzcxOrzNtP7hEDsOo1jdjFnVr2IdxQ4AAAB4eyJvcmlnaW4iOiJodHRwczovL3lvdXR1YmUuY29tOjQ0MyIsImZlYXR1cmUiOiJXZWJWaWV3WFJlcXVlc3RlZFdpdGhEZXByZWNhdGlvbiIsImV4cGlyeSI6MTc1ODA2NzE5OSwiaXNTdWJkb21haW4iOnRydWV9",
"AiDEBptUfVeO93q48VdVMe/ubupazdAl8AaHP+NBzdnW8quUcHdzJUyGSfrmtpKJu7EOvwRp9ug2rEo3XU+WMAMAAAB2eyJvcmlnaW4iOiJodHRwczovL3lvdXR1YmUuY29tOjQ0MyIsImZlYXR1cmUiOiJEZXZpY2VCb3VuZFNlc3Npb25DcmVkZW50aWFsczIiLCJleHBpcnkiOjE3NzQzMTA0MDAsImlzU3ViZG9tYWluIjp0cnVlfQ\u003d\u003d"
],
"p3p": [
"CP\u003d\"This is not a P3P policy! See http://support.google.com/accounts/answer/151657?hl\u003den-GB for more info.\""
],
"permissions-policy": [
"ch-ua-arch\u003d*, ch-ua-bitness\u003d*, ch-ua-full-version\u003d*, ch-ua-full-version-list\u003d*, ch-ua-model\u003d*, ch-ua-wow64\u003d*, ch-ua-form-factors\u003d*, ch-ua-platform\u003d*, ch-ua-platform-version\u003d*"
],
"report-to": [
"{\"group\":\"youtube_main\",\"max_age\":2592000,\"endpoints\":[{\"url\":\"https://csp.withgoogle.com/csp/report-to/youtube_main\"}]}"
],
"reporting-endpoints": [
"default\u003d\"/web-reports?context\u003deJwNzHtozXEcxnE_77DOOTvn_H7fz9dtCoclcdbZMlLmbiSH5ZLZaLPZ3GazOecYoYRYSYkwc1thMkz-ENaMTMvkOsslQ3JJlmtYIb5_vP54np4e17VuK_6tsgZPK7bObyy1Fg4ps6bcW2PtTI9YP09GrLP1ESvcFrU6BsSs7EDMOtAWs4pelltH_Jldy_tmdq3PclFY6OJHpYuvz12Uf3aRPcxN63Q3HTPdrFzo5mKNm_oLbtrfu_mS62FE1MOHjHgaKuMZPtfLqcteMpq97DY-_fWycbSPkWk-YgU-3DEfByt8JO_3EVfto1eLj4bBfuJy_biMh1V-nv_ys0jZ7Eq1OTTPpj3HJrzUZsMGm63GxF02Y_fZNJ62SThnox7Z9Ptg87rT5lm6w7_pDjWzHcLZDu9KHG40OqTddRjz0CHxsYP_qUPorUPvToe4HgpHFOEERW1_hQooapIUwVRF4XhFdJai06jKUkzKVrhKFHuMF6WKbWUmb1FM2K5YX6O4XqvgjOKWkX9JkXtFcafZ9LcV6U8U64y6p4rEj4q93xQjvitKfyv-GHiEzV4ho5cwb7jQkS58Mr4a8VMFKyzMMAJLhNplQnWRkBcR_kTNvlLYZFw1tlUJ544J948Lrca-M8LAeiGrQVjUKPy6LuTfENqbhKabwsdmIbNFmHxXqDAu3zfdA6NV2NEmrHomnDQqXgpD35gPw34rpH0Xcn4Ii43DXTTjuml-ezQT4zUJfs0CR1NnbFKaNtFM7qkZ1Fvj9NEcNe4laKYENHmJmuqQ5uoozYk5mjnzzcYT11H3paW7_9WbplorEFxXEo1E8wqS1hbkBQvLSoojwYLiJcH8suWR5fmLi3JSQimpySkpyUnJoZzVof8Zrtt2\""
],
"server": [
"ESF"
],
"set-cookie": [
"YSC\u003d53hT5wtfQ8Q; Domain\u003d.youtube.com; Path\u003d/; Secure; HttpOnly; SameSite\u003dnone",
"VISITOR_INFO1_LIVE\u003d; Domain\u003d.youtube.com; Expires\u003dTue, 11-Apr-2023 19:58:36 GMT; Path\u003d/; Secure; HttpOnly; SameSite\u003dnone"
],
"strict-transport-security": [
"max-age\u003d31536000"
],
"vary": [
"Sec-CH-Viewport-Width, Sec-CH-DPR, Device-Memory"
],
"x-content-type-options": [
"nosniff"
],
"x-frame-options": [
"SAMEORIGIN"
],
"x-xss-protection": [
"0"
]
},
"responseBody": "\n self.addEventListener(\u0027install\u0027, event \u003d\u003e {\n event.waitUntil(self.skipWaiting());\n });\n self.addEventListener(\u0027activate\u0027, event \u003d\u003e {\n event.waitUntil(\n self.clients.claim().then(() \u003d\u003e self.registration.unregister()));\n });\n ",
"latestUrl": "https://www.youtube.com/sw.js"
}
}
97 changes: 97 additions & 0 deletions .../extractor/services/youtube/youtubeplaylistextractor/courseplaylist/generated_mock_1.json
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