356 lines
14 KiB
Java
356 lines
14 KiB
Java
package org.schabi.newpipe.extractor.services.youtube;
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import org.json.JSONException;
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import org.json.JSONObject;
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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.schabi.newpipe.extractor.Downloader;
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import org.schabi.newpipe.extractor.NewPipe;
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import org.schabi.newpipe.extractor.UrlIdHandler;
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import org.schabi.newpipe.extractor.channel.ChannelExtractor;
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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.exceptions.ReCaptchaException;
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import org.schabi.newpipe.extractor.stream.StreamInfoItemCollector;
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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 org.schabi.newpipe.extractor.utils.Parser;
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import org.schabi.newpipe.extractor.utils.Utils;
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import java.io.IOException;
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/*
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* Created by Christian Schabesberger on 25.07.16.
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*
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* Copyright (C) Christian Schabesberger 2016 <chris.schabesberger@mailbox.org>
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* YoutubeChannelExtractor.java is part of NewPipe.
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*
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* NewPipe is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* NewPipe is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with NewPipe. If not, see <http://www.gnu.org/licenses/>.
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*/
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@SuppressWarnings("WeakerAccess")
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public class YoutubeChannelExtractor extends ChannelExtractor {
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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 Document doc;
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/**
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* It's lazily initialized (when getNextStreams is called)
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*/
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private Document nextStreamsAjax;
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/*//////////////////////////////////////////////////////////////////////////
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// Variables for cache purposes (not "select" the current document all over again)
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//////////////////////////////////////////////////////////////////////////*/
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private String channelId;
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private String channelName;
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private String avatarUrl;
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private String bannerUrl;
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private String feedUrl;
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private long subscriberCount = -1;
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public YoutubeChannelExtractor(UrlIdHandler urlIdHandler, String url, int serviceId) throws ExtractionException, IOException {
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super(urlIdHandler, urlIdHandler.cleanUrl(url), serviceId);
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fetchDocument();
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}
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@Override
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public String getChannelId() throws ParsingException {
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try {
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if (channelId == null) {
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channelId = getUrlIdHandler().getId(getUrl());
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}
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return channelId;
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} catch (Exception e) {
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throw new ParsingException("Could not get channel id");
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}
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}
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@Override
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public String getChannelName() throws ParsingException {
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try {
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if (channelName == null) {
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channelName = doc.select("span[class=\"qualified-channel-title-text\"]").first().select("a").first().text();
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}
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return channelName;
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} catch (Exception e) {
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throw new ParsingException("Could not get channel name");
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}
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}
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@Override
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public String getAvatarUrl() throws ParsingException {
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try {
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if (avatarUrl == null) {
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avatarUrl = doc.select("img[class=\"channel-header-profile-image\"]").first().attr("abs:src");
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}
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return avatarUrl;
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} catch (Exception e) {
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throw new ParsingException("Could not get avatar", e);
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}
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}
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@Override
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public String getBannerUrl() throws ParsingException {
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try {
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if (bannerUrl == null) {
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Element el = doc.select("div[id=\"gh-banner\"]").first().select("style").first();
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String cssContent = el.html();
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String url = "https:" + Parser.matchGroup1("url\\(([^)]+)\\)", cssContent);
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bannerUrl = url.contains("s.ytimg.com") || url.contains("default_banner") ? null : url;
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}
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return bannerUrl;
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} catch (Exception e) {
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throw new ParsingException("Could not get Banner", e);
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}
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}
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@Override
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public StreamInfoItemCollector getStreams() throws ParsingException {
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StreamInfoItemCollector collector = getStreamPreviewInfoCollector();
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Element ul = doc.select("ul[id=\"browse-items-primary\"]").first();
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collectStreamsFrom(collector, ul);
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return collector;
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}
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@Override
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public long getSubscriberCount() throws ParsingException {
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if (subscriberCount == -1) {
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Element el = doc.select("span[class*=\"yt-subscription-button-subscriber-count\"]").first();
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if (el != null) {
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subscriberCount = Long.parseLong(Utils.removeNonDigitCharacters(el.text()));
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} else {
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throw new ParsingException("Could not get subscriber count");
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}
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}
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return subscriberCount;
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}
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@Override
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public String getFeedUrl() throws ParsingException {
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try {
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if (feedUrl == null) {
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String channelId = doc.getElementsByClass("yt-uix-subscription-button").first().attr("data-channel-external-id");
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feedUrl = channelId == null ? "" : CHANNEL_FEED_BASE + channelId;
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}
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return feedUrl;
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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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}
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@Override
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public StreamInfoItemCollector getNextStreams() throws ExtractionException, IOException {
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if (!hasMoreStreams()) {
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throw new ExtractionException("Channel doesn't have more streams");
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}
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StreamInfoItemCollector collector = new StreamInfoItemCollector(getServiceId());
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setupNextStreamsAjax(NewPipe.getDownloader());
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collectStreamsFrom(collector, nextStreamsAjax.select("body").first());
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return collector;
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}
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private void setupNextStreamsAjax(Downloader downloader) throws IOException, ReCaptchaException, ParsingException {
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String ajaxDataRaw = downloader.download(nextStreamsUrl);
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try {
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JSONObject ajaxData = new JSONObject(ajaxDataRaw);
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String htmlDataRaw = ajaxData.getString("content_html");
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nextStreamsAjax = Jsoup.parse(htmlDataRaw, nextStreamsUrl);
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String nextStreamsHtmlDataRaw = ajaxData.getString("load_more_widget_html");
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if (!nextStreamsHtmlDataRaw.isEmpty()) {
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Document nextStreamsData = Jsoup.parse(nextStreamsHtmlDataRaw, nextStreamsUrl);
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nextStreamsUrl = getNextStreamsUrl(nextStreamsData);
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} else {
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nextStreamsUrl = "";
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}
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} catch (JSONException e) {
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throw new ParsingException("Could not parse json data for next streams", e);
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}
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}
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private String getNextStreamsUrl(Document d) throws ParsingException {
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try {
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Element button = d.select("button[class*=\"yt-uix-load-more\"]").first();
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if (button != null) {
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return button.attr("abs:data-uix-load-more-href");
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} else {
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// Sometimes channels are simply so small, they don't have a more streams/videos
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return "";
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}
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} catch (Exception e) {
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throw new ParsingException("could not get next streams' url", e);
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}
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}
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private void fetchDocument() throws IOException, ReCaptchaException, ParsingException {
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Downloader downloader = NewPipe.getDownloader();
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String userUrl = getUrl() + "/videos?view=0&flow=list&sort=dd&live_view=10000";
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String pageContent = downloader.download(userUrl);
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doc = Jsoup.parse(pageContent, userUrl);
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nextStreamsUrl = getNextStreamsUrl(doc);
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nextStreamsAjax = null;
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}
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private void collectStreamsFrom(StreamInfoItemCollector collector, Element element) throws ParsingException {
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collector.getItemList().clear();
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for (final Element li : element.children()) {
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if (li.select("div[class=\"feed-item-dismissable\"]").first() != null) {
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collector.commit(new StreamInfoItemExtractor() {
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@Override
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public StreamType getStreamType() throws ParsingException {
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return StreamType.VIDEO_STREAM;
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}
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@Override
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public boolean isAd() throws ParsingException {
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return !li.select("span[class*=\"icon-not-available\"]").isEmpty();
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}
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@Override
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public String getWebPageUrl() throws ParsingException {
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try {
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Element el = li.select("div[class=\"feed-item-dismissable\"]").first();
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Element dl = el.select("h3").first().select("a").first();
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return dl.attr("abs:href");
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} catch (Exception e) {
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throw new ParsingException("Could not get web page url for the video", e);
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}
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}
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@Override
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public String getTitle() throws ParsingException {
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try {
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Element el = li.select("div[class=\"feed-item-dismissable\"]").first();
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Element dl = el.select("h3").first().select("a").first();
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return dl.text();
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} catch (Exception e) {
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throw new ParsingException("Could not get title", e);
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}
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}
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@Override
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public int getDuration() throws ParsingException {
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try {
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return YoutubeParsingHelper.parseDurationString(
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li.select("span[class=\"video-time\"]").first().text());
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} catch (Exception e) {
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if (isLiveStream(li)) {
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// -1 for no duration
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return -1;
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} else {
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throw new ParsingException("Could not get Duration: " + getTitle(), e);
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}
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}
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}
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@Override
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public String getUploader() throws ParsingException {
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return getChannelName();
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}
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@Override
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public String getUploadDate() throws ParsingException {
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try {
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Element meta = li.select("div[class=\"yt-lockup-meta\"]").first();
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Element li = meta.select("li").first();
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if (li == null) {
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//this means we have a youtube red video
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return "";
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} else {
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return li.text();
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}
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} catch (Exception e) {
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throw new ParsingException("Could not get upload date", e);
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}
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}
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@Override
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public long getViewCount() throws ParsingException {
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String output;
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String input;
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try {
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input = li.select("div[class=\"yt-lockup-meta\"]").first()
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.select("li").get(1)
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.text();
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} catch (IndexOutOfBoundsException e) {
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return -1;
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}
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output = Utils.removeNonDigitCharacters(input);
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try {
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return Long.parseLong(output);
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} catch (NumberFormatException e) {
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// if this happens the video probably has no views
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if (!input.isEmpty()) {
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return 0;
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} else {
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throw new ParsingException("Could not handle input: " + input, e);
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}
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}
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}
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@Override
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public String getThumbnailUrl() throws ParsingException {
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try {
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String url;
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Element te = li.select("span[class=\"yt-thumb-clip\"]").first()
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.select("img").first();
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url = te.attr("abs:src");
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// Sometimes youtube sends links to gif files which somehow seem to not exist
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// anymore. Items with such gif also offer a secondary image source. So we are going
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// to use that if we've caught such an item.
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if (url.contains(".gif")) {
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url = te.attr("abs:data-thumb");
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}
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return url;
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} catch (Exception e) {
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throw new ParsingException("Could not get thumbnail url", e);
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}
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}
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private boolean isLiveStream(Element item) {
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Element bla = item.select("span[class*=\"yt-badge-live\"]").first();
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if (bla == null) {
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// sometimes livestreams dont have badges but sill are live streams
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// if video time is not available we most likly have an offline livestream
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if (item.select("span[class*=\"video-time\"]").first() == null) {
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return true;
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}
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}
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return bla != null;
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}
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});
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}
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}
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}
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}
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