111 lines
4.3 KiB
Java
111 lines
4.3 KiB
Java
package org.schabi.newpipe.extractor.services.youtube.linkHandler;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.List;
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import org.schabi.newpipe.extractor.exceptions.ContentNotSupportedException;
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import org.schabi.newpipe.extractor.exceptions.ParsingException;
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import org.schabi.newpipe.extractor.linkhandler.LinkHandler;
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import org.schabi.newpipe.extractor.linkhandler.ListLinkHandler;
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import org.schabi.newpipe.extractor.linkhandler.ListLinkHandlerFactory;
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import org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper;
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import org.schabi.newpipe.extractor.utils.Utils;
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public final class YoutubePlaylistLinkHandlerFactory extends ListLinkHandlerFactory {
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private static final YoutubePlaylistLinkHandlerFactory INSTANCE =
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new YoutubePlaylistLinkHandlerFactory();
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private YoutubePlaylistLinkHandlerFactory() {
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}
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public static YoutubePlaylistLinkHandlerFactory getInstance() {
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return INSTANCE;
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}
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@Override
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public String getUrl(final String id, final List<String> contentFilters,
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final String sortFilter) {
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return "https://www.youtube.com/playlist?list=" + id;
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}
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@Override
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public String getId(final String url) throws ParsingException {
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try {
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final URL urlObj = Utils.stringToURL(url);
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if (!Utils.isHTTP(urlObj) || !(YoutubeParsingHelper.isYoutubeURL(urlObj)
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|| YoutubeParsingHelper.isInvidioURL(urlObj))) {
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throw new ParsingException("the url given is not a YouTube-URL");
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}
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final String path = urlObj.getPath();
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if (!path.equals("/watch") && !path.equals("/playlist")) {
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throw new ParsingException("the url given is neither a video nor a playlist URL");
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}
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final String listID = Utils.getQueryValue(urlObj, "list");
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if (listID == null) {
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throw new ParsingException("the URL given does not include a playlist");
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}
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if (!listID.matches("[a-zA-Z0-9_-]{10,}")) {
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throw new ParsingException(
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"the list-ID given in the URL does not match the list pattern");
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}
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if (YoutubeParsingHelper.isYoutubeChannelMixId(listID)
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&& Utils.getQueryValue(urlObj, "v") == null) {
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// Video id can't be determined from the channel mix id.
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// See YoutubeParsingHelper#extractVideoIdFromMixId
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throw new ContentNotSupportedException(
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"Channel Mix without a video id are not supported");
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}
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return listID;
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} catch (final Exception exception) {
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throw new ParsingException("Error could not parse URL: " + exception.getMessage(),
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exception);
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}
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}
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@Override
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public boolean onAcceptUrl(final String url) {
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try {
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getId(url);
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} catch (final ParsingException e) {
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return false;
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}
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return true;
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}
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/**
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* If it is a mix (auto-generated playlist) URL, return a {@link LinkHandler} where the URL is
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* like {@code https://youtube.com/watch?v=videoId&list=playlistId}
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* <p>Otherwise use super</p>
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*/
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@Override
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public ListLinkHandler fromUrl(final String url) throws ParsingException {
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try {
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final URL urlObj = Utils.stringToURL(url);
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final String listID = Utils.getQueryValue(urlObj, "list");
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if (listID != null && YoutubeParsingHelper.isYoutubeMixId(listID)) {
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String videoID = Utils.getQueryValue(urlObj, "v");
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if (videoID == null) {
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videoID = YoutubeParsingHelper.extractVideoIdFromMixId(listID);
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}
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final String newUrl = "https://www.youtube.com/watch?v=" + videoID
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+ "&list=" + listID;
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return new ListLinkHandler(new LinkHandler(url, newUrl, listID),
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getContentFilter(url),
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getSortFilter(url));
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}
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} catch (final MalformedURLException exception) {
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throw new ParsingException("Error could not parse URL: " + exception.getMessage(),
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exception);
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}
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return super.fromUrl(url);
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}
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}
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