362 lines
14 KiB
Java
362 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.AbstractStreamInfo;
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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.Parser;
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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.stream_info.StreamInfoItemCollector;
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import org.schabi.newpipe.extractor.stream_info.StreamInfoItemExtractor;
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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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public class YoutubeChannelExtractor extends ChannelExtractor {
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private static final String TAG = YoutubeChannelExtractor.class.toString();
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// private CSSOMParser cssParser = new CSSOMParser(new SACParserCSS3());
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private Document doc = null;
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private boolean isAjaxPage = false;
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private static String userUrl = "";
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private static String channelName = "";
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private static String avatarUrl = "";
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private static String bannerUrl = "";
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private static String feedUrl = "";
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private static long subscriberCount = -1;
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// the fist page is html all other pages are ajax. Every new page can be requested by sending
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// this request url.
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private static String nextPageUrl = "";
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public YoutubeChannelExtractor(UrlIdHandler urlIdHandler, String url, int page, int serviceId)
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throws ExtractionException, IOException {
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super(urlIdHandler, url, page, serviceId);
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Downloader downloader = NewPipe.getDownloader();
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url = urlIdHandler.cleanUrl(url) ; //+ "/video?veiw=0&flow=list&sort=dd";
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if(page == 0) {
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if (isUserUrl(url)) {
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userUrl = url;
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} else {
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// we first need to get the user url. Otherwise we can't find videos
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String channelPageContent = downloader.download(url);
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Document channelDoc = Jsoup.parse(channelPageContent, url);
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userUrl = getUserUrl(channelDoc);
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}
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userUrl = userUrl + "/videos?veiw=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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nextPageUrl = getNextPageUrl(doc);
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isAjaxPage = false;
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} else {
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String ajaxDataRaw = downloader.download(nextPageUrl);
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JSONObject ajaxData;
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try {
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ajaxData = new JSONObject(ajaxDataRaw);
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String htmlDataRaw = ajaxData.getString("content_html");
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doc = Jsoup.parse(htmlDataRaw, nextPageUrl);
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String nextPageHtmlDataRaw = ajaxData.getString("load_more_widget_html");
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if(!nextPageHtmlDataRaw.isEmpty()) {
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Document nextPageData = Jsoup.parse(nextPageHtmlDataRaw, nextPageUrl);
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nextPageUrl = getNextPageUrl(nextPageData);
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} else {
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nextPageUrl = "";
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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 page", e);
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}
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isAjaxPage = true;
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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(!isAjaxPage) {
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channelName = doc.select("span[class=\"qualified-channel-title-text\"]").first()
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.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(!isAjaxPage) {
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avatarUrl = doc.select("img[class=\"channel-header-profile-image\"]")
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.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(!isAjaxPage) {
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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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if (url.contains("s.ytimg.com") || url.contains("default_banner")) {
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bannerUrl = null;
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} else {
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bannerUrl = url;
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}
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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;
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if(isAjaxPage) {
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ul = doc.select("body").first();
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} else {
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ul = doc.select("ul[id=\"browse-items-primary\"]").first();
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}
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for(final Element li : ul.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 AbstractStreamInfo.StreamType getStreamType() throws ParsingException {
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return AbstractStreamInfo.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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if(!li.select("span[class*=\"icon-not-available\"]").isEmpty()) {
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return true;
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} else {
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return false;
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}
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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 && meta != 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 uplaod 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 = Parser.matchGroup1("([0-9,\\. ]*)", input)
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.replace(" ", "")
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.replace(".", "")
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.replace(",", "");
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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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return collector;
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}
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@Override
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public long getSubscriberCount() throws ParsingException {
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Element el = doc.select("span[class*=\"yt-subscription-button-subscriber-count\"]")
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.first();
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if(el != null) {
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subscriberCount = Long.parseLong(el.text().replaceAll("\\D+",""));
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} else if(el == null && subscriberCount == -1) {
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throw new ParsingException("Could not get subscriber count");
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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(userUrl.contains("channel")) {
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//channels don't have feeds in youtube, only user can provide such
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return "";
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}
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if(!isAjaxPage) {
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feedUrl = doc.select("link[title=\"RSS\"]").first().attr("abs:href");
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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 boolean hasNextPage() throws ParsingException {
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return !nextPageUrl.isEmpty();
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}
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private String getUserUrl(Document d) throws ParsingException {
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return d.select("span[class=\"qualified-channel-title-text\"]").first()
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.select("a").first().attr("abs:href");
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}
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private boolean isUserUrl(String url) throws ParsingException {
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return url.contains("/user/");
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}
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private String getNextPageUrl(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 second/next4q page
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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 load next page url", e);
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}
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}
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}
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