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[Youtube] apply wb9688 suggestion (mix)

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Channel mix adjusments and test
Don't accept youtube music mix urls as playlist
Don't override playlistData to keep getInitialPage()
Remove json constants
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This commit is contained in:
Xiang Rong Lin 2020-03-21 18:48:12 +01:00 committed by XiangRongLin
parent 822cf307f7
commit 3ff8619bcc
5 changed files with 64 additions and 52 deletions
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23
extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeParsingHelper.java
View File

@ -193,13 +193,23 @@ public class YoutubeParsingHelper {
}
/**
* Checks if the given playlist id is a mix (auto-generated playlist)
* Ids from a mix start with "RD"
* Checks if the given playlist id is a youtube mix (auto-generated playlist)
* Ids from a youtube mix start with "RD"
* @param playlistId
* @return Whether given id belongs to a mix
* @return Whether given id belongs to a youtube mix
*/
public static boolean isYoutubeMixId(String playlistId) {
return playlistId.startsWith("RD");
return playlistId.startsWith("RD") && !isYoutubeMusicMixId(playlistId);
}
/**
* Checks if the given playlist id is a youtube music mix (auto-generated playlist)
* Ids from a youtube music mix start with "RD"
* @param playlistId
* @return Whether given id belongs to a youtube music mix
*/
public static boolean isYoutubeMusicMixId(String playlistId) {
return playlistId.startsWith("RDAMVM");
}
public static JsonObject getInitialData(String html) throws ParsingException {
@ -427,9 +437,9 @@ public class YoutubeParsingHelper {
StringBuilder url = new StringBuilder();
url.append("https://www.youtube.com/watch?v=").append(navigationEndpoint.getObject("watchEndpoint").getString("videoId"));
if (navigationEndpoint.getObject("watchEndpoint").has("playlistId"))
url.append("&list=").append(navigationEndpoint.getObject("watchEndpoint").getString("playlistId"));
url.append("&list=").append(navigationEndpoint.getObject("watchEndpoint").getString("playlistId"));
if (navigationEndpoint.getObject("watchEndpoint").has("startTimeSeconds"))
url.append("&t=").append(navigationEndpoint.getObject("watchEndpoint").getInt("startTimeSeconds"));
url.append("&t=").append(navigationEndpoint.getObject("watchEndpoint").getInt("startTimeSeconds"));
return url.toString();
} else if (navigationEndpoint.has("watchPlaylistEndpoint")) {
return "https://www.youtube.com/playlist?list=" +
@ -457,6 +467,7 @@ public class YoutubeParsingHelper {
if (html && ((JsonObject) textPart).has("navigationEndpoint")) {
String url = getUrlFromNavigationEndpoint(((JsonObject) textPart).getObject("navigationEndpoint"));
if (!isNullOrEmpty(url)) {
url = url.replaceAll("&", "&");
textBuilder.append("<a href=\"").append(url).append("\">").append(text).append("</a>");
continue;
}

67
extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeMixPlaylistExtractor.java
View File

@ -1,6 +1,7 @@
package org.schabi.newpipe.extractor.services.youtube.extractors;
import static org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeParsingHelper.getJsonResponse;
import static org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeParsingHelper.getUrlFromNavigationEndpoint;
import com.grack.nanojson.JsonArray;
import com.grack.nanojson.JsonObject;
@ -25,13 +26,7 @@ import org.schabi.newpipe.extractor.stream.StreamInfoItemsCollector;
*/
public class YoutubeMixPlaylistExtractor extends PlaylistExtractor {
private final static String CONTENTS = "contents";
private final static String RESPONSE = "response";
private final static String PLAYLIST = "playlist";
private final static String TWO_COLUMN_WATCH_NEXT_RESULTS = "twoColumnWatchNextResults";
private final static String PLAYLIST_PANEL_VIDEO_RENDERER = "playlistPanelVideoRenderer";
private JsonObject initialData;
private JsonObject playlistData;
public YoutubeMixPlaylistExtractor(StreamingService service, ListLinkHandler linkHandler) {
@ -43,9 +38,9 @@ public class YoutubeMixPlaylistExtractor extends PlaylistExtractor {
throws IOException, ExtractionException {
final String url = getUrl() + "&pbj=1";
final JsonArray ajaxJson = getJsonResponse(url, getExtractorLocalization());
JsonObject initialData = ajaxJson.getObject(3).getObject(RESPONSE);
playlistData = initialData.getObject(CONTENTS).getObject(TWO_COLUMN_WATCH_NEXT_RESULTS)
.getObject(PLAYLIST).getObject(PLAYLIST);
initialData = ajaxJson.getObject(3).getObject("response");
playlistData = initialData.getObject("contents").getObject("twoColumnWatchNextResults")
.getObject("playlist").getObject("playlist");
}
@Nonnull
@ -62,7 +57,14 @@ public class YoutubeMixPlaylistExtractor extends PlaylistExtractor {
public String getThumbnailUrl() throws ParsingException {
try {
final String playlistId = playlistData.getString("playlistId");
return getThumbnailUrlFromId(playlistId);
try {
return getThumbnailUrlFromPlaylistId(playlistId);
} catch (ParsingException e) {
//fallback to thumbnail of current video. Always the case for channel mix
return getThumbnailUrlFromVideoId(
initialData.getObject("currentVideoEndpoint").getObject("watchEndpoint")
.getString("videoId"));
}
} catch (Exception e) {
throw new ParsingException("Could not get playlist thumbnail", e);
}
@ -101,20 +103,26 @@ public class YoutubeMixPlaylistExtractor extends PlaylistExtractor {
@Override
public InfoItemsPage<StreamInfoItem> getInitialPage() throws ExtractionException {
StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId());
collectStreamsFrom(collector, playlistData.getArray(CONTENTS));
collectStreamsFrom(collector, playlistData.getArray("contents"));
return new InfoItemsPage<>(collector, getNextPageUrl());
}
@Override
public String getNextPageUrl() throws ExtractionException {
final JsonObject lastStream = ((JsonObject) playlistData.getArray(CONTENTS)
.get(playlistData.getArray(CONTENTS).size() - 1));
if (lastStream == null || lastStream.getObject(PLAYLIST_PANEL_VIDEO_RENDERER) == null) {
return getNextPageUrlFrom(playlistData);
}
private String getNextPageUrlFrom(JsonObject playlistData) throws ExtractionException {
final JsonObject lastStream = ((JsonObject) playlistData.getArray("contents")
.get(playlistData.getArray("contents").size() - 1));
if (lastStream == null || lastStream.getObject("playlistPanelVideoRenderer") == null) {
throw new ExtractionException("Could not extract next page url");
}
return "https://youtube.com" + lastStream.getObject(PLAYLIST_PANEL_VIDEO_RENDERER)
.getObject("navigationEndpoint").getObject("commandMetadata")
.getObject("webCommandMetadata").getString("url") + "&pbj=1";
//Index of video in mix is missing, but adding it doesn't appear to have any effect.
//And since the index needs to be tracked by us, it is left out
return getUrlFromNavigationEndpoint(
lastStream.getObject("playlistPanelVideoRenderer").getObject("navigationEndpoint"))
+ "&pbj=1";
}
@Override
@ -127,21 +135,20 @@ public class YoutubeMixPlaylistExtractor extends PlaylistExtractor {
StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId());
final JsonArray ajaxJson = getJsonResponse(pageUrl, getExtractorLocalization());
playlistData =
ajaxJson.getObject(3).getObject(RESPONSE).getObject(CONTENTS)
.getObject(TWO_COLUMN_WATCH_NEXT_RESULTS).getObject(PLAYLIST)
.getObject(PLAYLIST);
final JsonArray streams = playlistData.getArray(CONTENTS);
JsonObject playlistData =
ajaxJson.getObject(3).getObject("response").getObject("contents")
.getObject("twoColumnWatchNextResults").getObject("playlist")
.getObject("playlist");
final JsonArray streams = playlistData.getArray("contents");
//Because continuation requests are created with the last video of previous request as start
streams.remove(0);
collectStreamsFrom(collector, streams);
return new InfoItemsPage<>(collector, getNextPageUrl());
return new InfoItemsPage<>(collector, getNextPageUrlFrom(playlistData));
}
private void collectStreamsFrom(
@Nonnull StreamInfoItemsCollector collector,
@Nullable JsonArray streams) {
collector.reset();
if (streams == null) {
return;
@ -152,7 +159,7 @@ public class YoutubeMixPlaylistExtractor extends PlaylistExtractor {
for (Object stream : streams) {
if (stream instanceof JsonObject) {
JsonObject streamInfo = ((JsonObject) stream)
.getObject(PLAYLIST_PANEL_VIDEO_RENDERER);
.getObject("playlistPanelVideoRenderer");
if (streamInfo != null) {
collector.commit(new YoutubeStreamInfoItemExtractor(streamInfo, timeAgoParser));
}
@ -160,16 +167,22 @@ public class YoutubeMixPlaylistExtractor extends PlaylistExtractor {
}
}
private String getThumbnailUrlFromId(String playlistId) throws ParsingException {
private String getThumbnailUrlFromPlaylistId(String playlistId) throws ParsingException {
final String videoId;
if (playlistId.startsWith("RDMM")) {
videoId = playlistId.substring(4);
} else if (playlistId.startsWith("RDCMUC")) {
throw new ParsingException("is channel mix");
} else {
videoId = playlistId.substring(2);
}
if (videoId.isEmpty()) {
throw new ParsingException("videoId is empty");
}
return getThumbnailUrlFromVideoId(videoId);
}
private String getThumbnailUrlFromVideoId(String videoId) {
return "https://i.ytimg.com/vi/" + videoId + "/hqdefault.jpg";
}
}

5
extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/linkHandler/YoutubePlaylistLinkHandlerFactory.java
View File

@ -64,11 +64,12 @@ public class YoutubePlaylistLinkHandlerFactory extends ListLinkHandlerFactory {
@Override
public boolean onAcceptUrl(final String url) {
try {
getId(url);
String playlistId = getId(url);
//Because youtube music mix are not supported yet.
return !YoutubeParsingHelper.isYoutubeMusicMixId(playlistId);
} catch (ParsingException e) {
return false;
}
return true;
}
/**

19
extractor/src/test/java/org/schabi/newpipe/extractor/services/youtube/YoutubeMixPlaylistExtractorTest.java
View File

@ -13,6 +13,7 @@ import org.schabi.newpipe.extractor.ListExtractor;
import org.schabi.newpipe.extractor.ListExtractor.InfoItemsPage;
import org.schabi.newpipe.extractor.NewPipe;
import org.schabi.newpipe.extractor.exceptions.ExtractionException;
import org.schabi.newpipe.extractor.exceptions.ParsingException;
import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeMixPlaylistExtractor;
import org.schabi.newpipe.extractor.stream.StreamInfoItem;
@ -93,11 +94,6 @@ public class YoutubeMixPlaylistExtractorTest {
public void getStreamCount() throws Exception {
assertEquals(ListExtractor.ITEM_COUNT_INFINITE, extractor.getStreamCount());
}
@Test
public void getStreamCount() throws Exception {
assertEquals(ListExtractor.ITEM_COUNT_INFINITE, extractor.getStreamCount());
}
}
public static class MixWithIndex {
@ -166,11 +162,6 @@ public class YoutubeMixPlaylistExtractorTest {
assertFalse(streams.getItems().isEmpty());
}
@Test
public void getStreamCount() {
assertEquals(ListExtractor.ITEM_COUNT_INFINITE, extractor.getStreamCount());
}
@Test
public void getStreamCount() throws Exception {
assertEquals(ListExtractor.ITEM_COUNT_INFINITE, extractor.getStreamCount());
@ -264,12 +255,13 @@ public class YoutubeMixPlaylistExtractorTest {
extractor.getPage("");
}
@Test(expected = NullPointerException.class)
@Test(expected = ExtractionException.class)
public void invalidVideoId() throws Exception {
extractor = (YoutubeMixPlaylistExtractor) YouTube
.getPlaylistExtractor(
"https://www.youtube.com/watch?v=" + "abcde" + "&list=RD" + "abcde");
extractor.fetchPage();
extractor.getName();
}
}
@ -329,10 +321,5 @@ public class YoutubeMixPlaylistExtractorTest {
public void getStreamCount() throws Exception {
assertEquals(ListExtractor.ITEM_COUNT_INFINITE, extractor.getStreamCount());
}
@Test
public void getStreamCount() throws Exception {
assertEquals(ListExtractor.ITEM_COUNT_INFINITE, extractor.getStreamCount());
}
}
}