200 lines
6.6 KiB
Java
200 lines
6.6 KiB
Java
package org.schabi.newpipe.extractor.services.soundcloud.extractors;
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import com.grack.nanojson.JsonArray;
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import com.grack.nanojson.JsonObject;
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import com.grack.nanojson.JsonParser;
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import com.grack.nanojson.JsonParserException;
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import org.schabi.newpipe.extractor.NewPipe;
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import org.schabi.newpipe.extractor.Page;
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import org.schabi.newpipe.extractor.StreamingService;
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import org.schabi.newpipe.extractor.downloader.Downloader;
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import org.schabi.newpipe.extractor.exceptions.ExtractionException;
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import org.schabi.newpipe.extractor.exceptions.ParsingException;
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import org.schabi.newpipe.extractor.linkhandler.ListLinkHandler;
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import org.schabi.newpipe.extractor.playlist.PlaylistExtractor;
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import org.schabi.newpipe.extractor.services.soundcloud.SoundcloudParsingHelper;
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import org.schabi.newpipe.extractor.stream.StreamInfoItem;
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import org.schabi.newpipe.extractor.stream.StreamInfoItemsCollector;
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import org.schabi.newpipe.extractor.utils.Utils;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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import javax.annotation.Nonnull;
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import javax.annotation.Nullable;
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import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
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public class SoundcloudPlaylistExtractor extends PlaylistExtractor {
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private static final int STREAMS_PER_REQUESTED_PAGE = 15;
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private String playlistId;
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private JsonObject playlist;
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public SoundcloudPlaylistExtractor(StreamingService service, ListLinkHandler linkHandler) {
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super(service, linkHandler);
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}
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@Override
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public void onFetchPage(@Nonnull Downloader downloader) throws IOException, ExtractionException {
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playlistId = getLinkHandler().getId();
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String apiUrl = "https://api-v2.soundcloud.com/playlists/" + playlistId +
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"?client_id=" + SoundcloudParsingHelper.clientId() +
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"&representation=compact";
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String response = downloader.get(apiUrl, getExtractorLocalization()).responseBody();
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try {
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playlist = JsonParser.object().from(response);
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} catch (JsonParserException e) {
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throw new ParsingException("Could not parse json response", e);
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}
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}
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@Nonnull
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@Override
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public String getId() {
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return playlistId;
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}
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@Nonnull
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@Override
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public String getName() {
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return playlist.getString("title");
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}
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@Nullable
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@Override
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public String getThumbnailUrl() {
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String artworkUrl = playlist.getString("artwork_url");
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if (artworkUrl == null) {
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// If the thumbnail is null, traverse the items list and get a valid one,
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// if it also fails, return null
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try {
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final InfoItemsPage<StreamInfoItem> infoItems = getInitialPage();
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for (StreamInfoItem item : infoItems.getItems()) {
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artworkUrl = item.getThumbnailUrl();
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if (!isNullOrEmpty(artworkUrl)) break;
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}
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} catch (Exception ignored) {
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}
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if (artworkUrl == null) {
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return null;
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}
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}
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return artworkUrl.replace("large.jpg", "crop.jpg");
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}
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@Override
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public String getBannerUrl() {
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return null;
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}
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@Override
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public String getUploaderUrl() {
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return SoundcloudParsingHelper.getUploaderUrl(playlist);
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}
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@Override
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public String getUploaderName() {
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return SoundcloudParsingHelper.getUploaderName(playlist);
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}
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@Override
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public String getUploaderAvatarUrl() {
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return SoundcloudParsingHelper.getAvatarUrl(playlist);
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}
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@Override
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public boolean isUploaderVerified() throws ParsingException {
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return playlist.getObject("user").getBoolean("verified");
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}
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@Override
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public long getStreamCount() {
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return playlist.getLong("track_count");
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}
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@Nonnull
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@Override
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public String getSubChannelName() {
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return "";
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}
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@Nonnull
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@Override
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public String getSubChannelUrl() {
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return "";
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}
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@Nonnull
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@Override
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public String getSubChannelAvatarUrl() {
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return "";
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}
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public InfoItemsPage<StreamInfoItem> getInitialPage() {
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final StreamInfoItemsCollector streamInfoItemsCollector = new StreamInfoItemsCollector(getServiceId());
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final List<String> ids = new ArrayList<>();
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final JsonArray tracks = playlist.getArray("tracks");
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for (Object o : tracks) {
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if (o instanceof JsonObject) {
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final JsonObject track = (JsonObject) o;
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if (track.has("title")) { // i.e. if full info is available
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streamInfoItemsCollector.commit(new SoundcloudStreamInfoItemExtractor(track));
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} else {
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// %09d would be enough, but a 0 before the number does not create problems, so let's be sure
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ids.add(String.format("%010d", track.getInt("id")));
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}
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}
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}
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return new InfoItemsPage<>(streamInfoItemsCollector, new Page(ids));
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}
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@Override
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public InfoItemsPage<StreamInfoItem> getPage(final Page page) throws IOException, ExtractionException {
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if (page == null || isNullOrEmpty(page.getIds())) {
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throw new IllegalArgumentException("Page doesn't contain IDs");
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}
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final List<String> currentIds;
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final List<String> nextIds;
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if (page.getIds().size() <= STREAMS_PER_REQUESTED_PAGE) {
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// Fetch every remaining stream, there are less than the max
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currentIds = page.getIds();
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nextIds = null;
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} else {
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currentIds = page.getIds().subList(0, STREAMS_PER_REQUESTED_PAGE);
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nextIds = page.getIds().subList(STREAMS_PER_REQUESTED_PAGE, page.getIds().size());
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}
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final String currentPageUrl = "https://api-v2.soundcloud.com/tracks?client_id="
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+ SoundcloudParsingHelper.clientId()
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+ "&ids=" + Utils.join(",", currentIds);
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final StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId());
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final String response = NewPipe.getDownloader().get(currentPageUrl, getExtractorLocalization()).responseBody();
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try {
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final JsonArray tracks = JsonParser.array().from(response);
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for (Object track : tracks) {
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if (track instanceof JsonObject) {
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collector.commit(new SoundcloudStreamInfoItemExtractor((JsonObject) track));
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}
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}
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} catch (JsonParserException e) {
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throw new ParsingException("Could not parse json response", e);
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}
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return new InfoItemsPage<>(collector, new Page(nextIds));
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}
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}
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