Merge pull request #222 from mauriciocolli/feed-extractor
Introduce FeedExtractor to fetch from dedicated feeds when available
This commit is contained in:
commit
62b81c3607
11 changed files with 372 additions and 28 deletions
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@ -7,6 +7,7 @@ import org.schabi.newpipe.extractor.channel.ChannelExtractor;
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import org.schabi.newpipe.extractor.comments.CommentsExtractor;
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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.feed.FeedExtractor;
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import org.schabi.newpipe.extractor.kiosk.KioskList;
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import org.schabi.newpipe.extractor.linkhandler.LinkHandler;
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import org.schabi.newpipe.extractor.linkhandler.LinkHandlerFactory;
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@ -24,6 +25,8 @@ import org.schabi.newpipe.extractor.stream.StreamExtractor;
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import org.schabi.newpipe.extractor.subscription.SubscriptionExtractor;
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import org.schabi.newpipe.extractor.suggestion.SuggestionExtractor;
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import javax.annotation.Nullable;
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/*
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* Copyright (C) Christian Schabesberger 2018 <chris.schabesberger@mailbox.org>
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* StreamingService.java is part of NewPipe.
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@ -65,7 +68,7 @@ public abstract class StreamingService {
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public String getName() {
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return name;
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}
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public List<MediaCapability> getMediaCapabilities() {
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return mediaCapabilities;
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}
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@ -116,7 +119,7 @@ public abstract class StreamingService {
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public String toString() {
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return serviceId + ":" + serviceInfo.getName();
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}
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public abstract String getBaseUrl();
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/*//////////////////////////////////////////////////////////////////////////
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@ -173,6 +176,19 @@ public abstract class StreamingService {
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*/
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public abstract SubscriptionExtractor getSubscriptionExtractor();
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/**
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* This method decides which strategy will be chosen to fetch the feed. In YouTube, for example, a separate feed
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* exists which is lightweight and made specifically to be used like this.
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* <p>
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* In services which there's no other way to retrieve them, null should be returned.
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*
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* @return a {@link FeedExtractor} instance or null.
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*/
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@Nullable
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public FeedExtractor getFeedExtractor(String url) throws ExtractionException {
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return null;
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}
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/**
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* Must create a new instance of a KioskList implementation.
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* @return a new KioskList instance
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@ -258,7 +274,7 @@ public abstract class StreamingService {
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}
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return getCommentsExtractor(llhf.fromUrl(url));
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}
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/*//////////////////////////////////////////////////////////////////////////
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// Utils
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//////////////////////////////////////////////////////////////////////////*/
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@ -5,9 +5,7 @@ import org.schabi.newpipe.extractor.ListInfo;
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import org.schabi.newpipe.extractor.NewPipe;
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import org.schabi.newpipe.extractor.StreamingService;
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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.localization.Localization;
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import org.schabi.newpipe.extractor.stream.StreamInfoItem;
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import org.schabi.newpipe.extractor.utils.ExtractorHelper;
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@ -35,8 +33,8 @@ import java.io.IOException;
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public class ChannelInfo extends ListInfo<StreamInfoItem> {
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public ChannelInfo(int serviceId, ListLinkHandler linkHandler, String name) throws ParsingException {
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super(serviceId, linkHandler, name);
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public ChannelInfo(int serviceId, String id, String url, String originalUrl, String name, ListLinkHandler listLinkHandler) {
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super(serviceId, id, url, originalUrl, name, listLinkHandler.getContentFilters(), listLinkHandler.getSortFilter());
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}
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public static ChannelInfo getInfo(String url) throws IOException, ExtractionException {
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@ -57,15 +55,14 @@ public class ChannelInfo extends ListInfo<StreamInfoItem> {
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public static ChannelInfo getInfo(ChannelExtractor extractor) throws IOException, ExtractionException {
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ChannelInfo info = new ChannelInfo(extractor.getServiceId(),
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extractor.getLinkHandler(),
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extractor.getName());
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final int serviceId = extractor.getServiceId();
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final String id = extractor.getId();
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final String url = extractor.getUrl();
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final String originalUrl = extractor.getOriginalUrl();
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final String name = extractor.getName();
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final ChannelInfo info = new ChannelInfo(serviceId, id, url, originalUrl, name, extractor.getLinkHandler());
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try {
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info.setOriginalUrl(extractor.getOriginalUrl());
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} catch (Exception e) {
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info.addError(e);
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}
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try {
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info.setAvatarUrl(extractor.getAvatarUrl());
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} catch (Exception e) {
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@ -0,0 +1,17 @@
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package org.schabi.newpipe.extractor.feed;
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import org.schabi.newpipe.extractor.ListExtractor;
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import org.schabi.newpipe.extractor.StreamingService;
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import org.schabi.newpipe.extractor.linkhandler.ListLinkHandler;
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import org.schabi.newpipe.extractor.stream.StreamInfoItem;
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/**
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* This class helps to extract items from lightweight feeds that the services may provide.
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* <p>
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* YouTube is an example of a service that has this alternative available.
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*/
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public abstract class FeedExtractor extends ListExtractor<StreamInfoItem> {
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public FeedExtractor(StreamingService service, ListLinkHandler listLinkHandler) {
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super(service, listLinkHandler);
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}
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}
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@ -0,0 +1,52 @@
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package org.schabi.newpipe.extractor.feed;
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import org.schabi.newpipe.extractor.ListExtractor.InfoItemsPage;
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import org.schabi.newpipe.extractor.ListInfo;
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import org.schabi.newpipe.extractor.NewPipe;
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import org.schabi.newpipe.extractor.StreamingService;
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import org.schabi.newpipe.extractor.exceptions.ExtractionException;
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import org.schabi.newpipe.extractor.stream.StreamInfoItem;
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import org.schabi.newpipe.extractor.utils.ExtractorHelper;
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import java.io.IOException;
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import java.util.List;
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public class FeedInfo extends ListInfo<StreamInfoItem> {
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public FeedInfo(int serviceId, String id, String url, String originalUrl, String name, List<String> contentFilter, String sortFilter) {
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super(serviceId, id, url, originalUrl, name, contentFilter, sortFilter);
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}
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public static FeedInfo getInfo(String url) throws IOException, ExtractionException {
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return getInfo(NewPipe.getServiceByUrl(url), url);
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}
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public static FeedInfo getInfo(StreamingService service, String url) throws IOException, ExtractionException {
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final FeedExtractor extractor = service.getFeedExtractor(url);
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if (extractor == null) {
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throw new IllegalArgumentException("Service \"" + service.getServiceInfo().getName() + "\" doesn't support FeedExtractor.");
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}
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extractor.fetchPage();
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return getInfo(extractor);
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}
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public static FeedInfo getInfo(FeedExtractor extractor) throws IOException, ExtractionException {
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extractor.fetchPage();
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final int serviceId = extractor.getServiceId();
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final String id = extractor.getId();
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final String url = extractor.getUrl();
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final String originalUrl = extractor.getOriginalUrl();
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final String name = extractor.getName();
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final FeedInfo info = new FeedInfo(serviceId, id, url, originalUrl, name, null, null);
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final InfoItemsPage<StreamInfoItem> itemsPage = ExtractorHelper.getItemsPageOrLogError(info, extractor);
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info.setRelatedItems(itemsPage.getItems());
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info.setNextPageUrl(itemsPage.getNextPageUrl());
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return info;
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}
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}
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@ -12,6 +12,7 @@ import org.schabi.newpipe.extractor.StreamingService;
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import org.schabi.newpipe.extractor.channel.ChannelExtractor;
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import org.schabi.newpipe.extractor.comments.CommentsExtractor;
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import org.schabi.newpipe.extractor.exceptions.ExtractionException;
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import org.schabi.newpipe.extractor.feed.FeedExtractor;
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import org.schabi.newpipe.extractor.kiosk.KioskExtractor;
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import org.schabi.newpipe.extractor.kiosk.KioskList;
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import org.schabi.newpipe.extractor.linkhandler.LinkHandler;
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@ -24,14 +25,7 @@ import org.schabi.newpipe.extractor.localization.ContentCountry;
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import org.schabi.newpipe.extractor.localization.Localization;
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import org.schabi.newpipe.extractor.playlist.PlaylistExtractor;
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import org.schabi.newpipe.extractor.search.SearchExtractor;
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import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeChannelExtractor;
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import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeCommentsExtractor;
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import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubePlaylistExtractor;
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import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeSearchExtractor;
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import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeStreamExtractor;
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import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeSubscriptionExtractor;
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import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeSuggestionExtractor;
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import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeTrendingExtractor;
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import org.schabi.newpipe.extractor.services.youtube.extractors.*;
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import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeChannelLinkHandlerFactory;
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import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeCommentsLinkHandlerFactory;
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import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubePlaylistLinkHandlerFactory;
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@ -42,6 +36,8 @@ import org.schabi.newpipe.extractor.stream.StreamExtractor;
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import org.schabi.newpipe.extractor.subscription.SubscriptionExtractor;
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import org.schabi.newpipe.extractor.suggestion.SuggestionExtractor;
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import javax.annotation.Nonnull;
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/*
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* Created by Christian Schabesberger on 23.08.15.
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*
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@ -72,7 +68,7 @@ public class YoutubeService extends StreamingService {
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public String getBaseUrl() {
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return "https://youtube.com";
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}
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@Override
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public LinkHandlerFactory getStreamLHFactory() {
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return YoutubeStreamLinkHandlerFactory.getInstance();
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@ -147,6 +143,12 @@ public class YoutubeService extends StreamingService {
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return new YoutubeSubscriptionExtractor(this);
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}
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@Nonnull
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@Override
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public FeedExtractor getFeedExtractor(final String channelUrl) throws ExtractionException {
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return new YoutubeFeedExtractor(this, getChannelLHFactory().fromUrl(channelUrl));
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}
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@Override
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public ListLinkHandlerFactory getCommentsLHFactory() {
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return YoutubeCommentsLinkHandlerFactory.getInstance();
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@ -46,7 +46,6 @@ import java.io.IOException;
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@SuppressWarnings("WeakerAccess")
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public class YoutubeChannelExtractor extends ChannelExtractor {
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/*package-private*/ static final String CHANNEL_URL_BASE = "https://www.youtube.com/channel/";
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private static final String CHANNEL_FEED_BASE = "https://www.youtube.com/feeds/videos.xml?channel_id=";
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private static final String CHANNEL_URL_PARAMETERS = "/videos?view=0&flow=list&sort=dd&live_view=10000";
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private Document doc;
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@ -130,7 +129,7 @@ public class YoutubeChannelExtractor extends ChannelExtractor {
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@Override
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public String getFeedUrl() throws ParsingException {
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try {
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return CHANNEL_FEED_BASE + getId();
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return YoutubeParsingHelper.getFeedUrlFrom(getId());
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} catch (Exception e) {
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throw new ParsingException("Could not get feed url", e);
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}
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@ -0,0 +1,82 @@
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package org.schabi.newpipe.extractor.services.youtube.extractors;
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import org.jsoup.Jsoup;
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import org.jsoup.nodes.Document;
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import org.jsoup.nodes.Element;
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import org.jsoup.select.Elements;
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import org.schabi.newpipe.extractor.ListExtractor;
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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.downloader.Response;
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import org.schabi.newpipe.extractor.exceptions.ExtractionException;
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import org.schabi.newpipe.extractor.feed.FeedExtractor;
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import org.schabi.newpipe.extractor.linkhandler.ListLinkHandler;
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import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeParsingHelper;
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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 javax.annotation.Nonnull;
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import java.io.IOException;
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public class YoutubeFeedExtractor extends FeedExtractor {
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public YoutubeFeedExtractor(StreamingService service, ListLinkHandler linkHandler) {
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super(service, linkHandler);
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}
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private Document document;
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@Override
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public void onFetchPage(@Nonnull Downloader downloader) throws IOException, ExtractionException {
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final String channelIdOrUser = getLinkHandler().getId();
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final String feedUrl = YoutubeParsingHelper.getFeedUrlFrom(channelIdOrUser);
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final Response response = downloader.get(feedUrl);
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document = Jsoup.parse(response.responseBody());
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}
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@Nonnull
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@Override
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public ListExtractor.InfoItemsPage<StreamInfoItem> getInitialPage() {
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final Elements entries = document.select("feed > entry");
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final StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId());
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for (Element entryElement : entries) {
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collector.commit(new YoutubeFeedInfoItemExtractor(entryElement));
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}
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return new InfoItemsPage<>(collector, null);
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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 document.getElementsByTag("yt:channelId").first().text();
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}
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@Nonnull
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@Override
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public String getUrl() {
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return document.select("feed > author > uri").first().text();
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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 document.select("feed > author > name").first().text();
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}
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@Override
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public String getNextPageUrl() {
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return null;
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}
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@Override
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public InfoItemsPage<StreamInfoItem> getPage(String pageUrl) {
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return null;
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}
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@Override
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public boolean hasNextPage() {
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return false;
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}
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}
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@ -0,0 +1,94 @@
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package org.schabi.newpipe.extractor.services.youtube.extractors;
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import org.jsoup.nodes.Element;
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import org.schabi.newpipe.extractor.exceptions.ParsingException;
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import org.schabi.newpipe.extractor.localization.DateWrapper;
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import org.schabi.newpipe.extractor.stream.StreamInfoItemExtractor;
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import org.schabi.newpipe.extractor.stream.StreamType;
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import javax.annotation.Nullable;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.TimeZone;
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public class YoutubeFeedInfoItemExtractor implements StreamInfoItemExtractor {
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private final Element entryElement;
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public YoutubeFeedInfoItemExtractor(Element entryElement) {
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this.entryElement = entryElement;
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}
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@Override
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public StreamType getStreamType() {
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// It is not possible to determine the stream type using the feed endpoint.
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// All entries are considered a video stream.
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return StreamType.VIDEO_STREAM;
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}
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@Override
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public boolean isAd() {
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return false;
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}
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@Override
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public long getDuration() {
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// Not available when fetching through the feed endpoint.
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return -1;
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}
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@Override
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public long getViewCount() {
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return Long.parseLong(entryElement.getElementsByTag("media:statistics").first().attr("views"));
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}
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@Override
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public String getUploaderName() {
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return entryElement.select("author > name").first().text();
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}
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@Override
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public String getUploaderUrl() {
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return entryElement.select("author > uri").first().text();
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}
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@Nullable
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@Override
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public String getTextualUploadDate() {
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return entryElement.getElementsByTag("published").first().text();
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}
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@Nullable
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@Override
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public DateWrapper getUploadDate() throws ParsingException {
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final Date date;
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try {
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final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss+00:00");
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dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
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date = dateFormat.parse(getTextualUploadDate());
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} catch (ParseException e) {
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throw new ParsingException("Could not parse date (\"" + getTextualUploadDate() + "\")", e);
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}
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final Calendar calendar = Calendar.getInstance();
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calendar.setTime(date);
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return new DateWrapper(calendar);
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}
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@Override
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public String getName() {
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return entryElement.getElementsByTag("title").first().text();
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}
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@Override
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public String getUrl() {
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return entryElement.getElementsByTag("link").first().attr("href");
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}
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@Override
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public String getThumbnailUrl() {
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return entryElement.getElementsByTag("media:thumbnail").first().attr("url");
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}
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}
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@ -22,8 +22,8 @@ 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.exceptions.ReCaptchaException;
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import org.schabi.newpipe.extractor.linkhandler.LinkHandler;
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import org.schabi.newpipe.extractor.localization.TimeAgoParser;
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import org.schabi.newpipe.extractor.localization.DateWrapper;
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import org.schabi.newpipe.extractor.localization.TimeAgoParser;
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import org.schabi.newpipe.extractor.services.youtube.ItagItem;
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import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeParsingHelper;
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import org.schabi.newpipe.extractor.stream.*;
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@ -152,7 +152,7 @@ public class YoutubeStreamExtractor extends StreamExtractor {
|
|||
return null;
|
||||
}
|
||||
|
||||
return new DateWrapper(YoutubeParsingHelper.parseDateFrom(textualUploadDate));
|
||||
return new DateWrapper(YoutubeParsingHelper.parseDateFrom(textualUploadDate), true);
|
||||
}
|
||||
|
||||
@Nonnull
|
||||
|
|
|
@ -38,6 +38,9 @@ public class YoutubeParsingHelper {
|
|||
private YoutubeParsingHelper() {
|
||||
}
|
||||
|
||||
private static final String FEED_BASE_CHANNEL_ID = "https://www.youtube.com/feeds/videos.xml?channel_id=";
|
||||
private static final String FEED_BASE_USER = "https://www.youtube.com/feeds/videos.xml?user=";
|
||||
|
||||
private static final String[] RECAPTCHA_DETECTION_SELECTORS = {
|
||||
"form[action*=\"/das_captcha\"]",
|
||||
"input[name*=\"action_recaptcha_verify\"]"
|
||||
|
@ -118,6 +121,16 @@ public class YoutubeParsingHelper {
|
|||
+ Long.parseLong(seconds);
|
||||
}
|
||||
|
||||
public static String getFeedUrlFrom(final String channelIdOrUser) {
|
||||
if (channelIdOrUser.startsWith("user/")) {
|
||||
return FEED_BASE_USER + channelIdOrUser.replace("user/", "");
|
||||
} else if (channelIdOrUser.startsWith("channel/")) {
|
||||
return FEED_BASE_CHANNEL_ID + channelIdOrUser.replace("channel/", "");
|
||||
} else {
|
||||
return FEED_BASE_CHANNEL_ID + channelIdOrUser;
|
||||
}
|
||||
}
|
||||
|
||||
public static Calendar parseDateFrom(String textualUploadDate) throws ParsingException {
|
||||
Date date;
|
||||
try {
|
||||
|
|
|
@ -0,0 +1,72 @@
|
|||
package org.schabi.newpipe.extractor.services.youtube;
|
||||
|
||||
import org.junit.BeforeClass;
|
||||
import org.junit.Test;
|
||||
import org.schabi.newpipe.DownloaderTestImpl;
|
||||
import org.schabi.newpipe.extractor.NewPipe;
|
||||
import org.schabi.newpipe.extractor.exceptions.ParsingException;
|
||||
import org.schabi.newpipe.extractor.services.BaseListExtractorTest;
|
||||
import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeFeedExtractor;
|
||||
|
||||
import static org.junit.Assert.*;
|
||||
import static org.schabi.newpipe.extractor.ServiceList.YouTube;
|
||||
import static org.schabi.newpipe.extractor.services.DefaultTests.defaultTestRelatedItems;
|
||||
|
||||
public class YoutubeFeedExtractorTest {
|
||||
public static class Kurzgesagt implements BaseListExtractorTest {
|
||||
private static YoutubeFeedExtractor extractor;
|
||||
|
||||
@BeforeClass
|
||||
public static void setUp() throws Exception {
|
||||
NewPipe.init(DownloaderTestImpl.getInstance());
|
||||
extractor = (YoutubeFeedExtractor) YouTube
|
||||
.getFeedExtractor("https://www.youtube.com/user/Kurzgesagt");
|
||||
extractor.fetchPage();
|
||||
}
|
||||
|
||||
/*//////////////////////////////////////////////////////////////////////////
|
||||
// Extractor
|
||||
//////////////////////////////////////////////////////////////////////////*/
|
||||
|
||||
@Test
|
||||
public void testServiceId() {
|
||||
assertEquals(YouTube.getServiceId(), extractor.getServiceId());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testName() {
|
||||
String name = extractor.getName();
|
||||
assertTrue(name, name.startsWith("Kurzgesagt"));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testId() {
|
||||
assertEquals("UCsXVk37bltHxD1rDPwtNM8Q", extractor.getId());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testUrl() {
|
||||
assertEquals("https://www.youtube.com/channel/UCsXVk37bltHxD1rDPwtNM8Q", extractor.getUrl());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testOriginalUrl() throws ParsingException {
|
||||
assertEquals("https://www.youtube.com/user/Kurzgesagt", extractor.getOriginalUrl());
|
||||
}
|
||||
|
||||
/*//////////////////////////////////////////////////////////////////////////
|
||||
// ListExtractor
|
||||
//////////////////////////////////////////////////////////////////////////*/
|
||||
|
||||
@Test
|
||||
public void testRelatedItems() throws Exception {
|
||||
defaultTestRelatedItems(extractor, YouTube.getServiceId());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testMoreRelatedItems() {
|
||||
assertFalse(extractor.hasNextPage());
|
||||
assertNull(extractor.getNextPageUrl());
|
||||
}
|
||||
}
|
||||
}
|
Loading…
Reference in a new issue