117 lines
4.9 KiB
Java
117 lines
4.9 KiB
Java
package org.schabi.newpipe.extractor.services.youtube;
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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.exceptions.ExtractionException;
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import org.schabi.newpipe.extractor.search.InfoItemSearchCollector;
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import org.schabi.newpipe.extractor.search.SearchEngine;
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import java.io.IOException;
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import java.net.URLEncoder;
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import java.util.EnumSet;
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/*
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* Created by Christian Schabesberger on 09.08.15.
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*
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* Copyright (C) Christian Schabesberger 2015 <chris.schabesberger@mailbox.org>
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* YoutubeSearchEngine.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 YoutubeSearchEngine extends SearchEngine {
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private static final String TAG = YoutubeSearchEngine.class.toString();
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public static final String CHARSET_UTF_8 = "UTF-8";
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public YoutubeSearchEngine(int serviceId) {
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super(serviceId);
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}
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@Override
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public InfoItemSearchCollector search(String query,
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int page,
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String languageCode,
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EnumSet<Filter> filter)
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throws IOException, ExtractionException {
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InfoItemSearchCollector collector = getInfoItemSearchCollector();
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Downloader downloader = NewPipe.getDownloader();
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String url = "https://www.youtube.com/results"
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+ "?q=" + URLEncoder.encode(query, CHARSET_UTF_8)
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+ "&page=" + Integer.toString(page + 1);
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if (filter.contains(Filter.STREAM) && !filter.contains(Filter.CHANNEL)) {
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url += "&sp=EgIQAQ%253D%253D";
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} else if (!filter.contains(Filter.STREAM) && filter.contains(Filter.CHANNEL)) {
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url += "&sp=EgIQAg%253D%253D";
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}
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String site;
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//String url = builder.build().toString();
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//if we've been passed a valid language code, append it to the URL
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if (!languageCode.isEmpty()) {
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//assert Pattern.matches("[a-z]{2}(-([A-Z]{2}|[0-9]{1,3}))?", languageCode);
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site = downloader.download(url, languageCode);
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} else {
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site = downloader.download(url);
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}
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Document doc = Jsoup.parse(site, url);
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Element list = doc.select("ol[class=\"item-section\"]").first();
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for (Element item : list.children()) {
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/* First we need to determine which kind of item we are working with.
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Youtube depicts five different kinds of items on its search result page. These are
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regular videos, playlists, channels, two types of video suggestions, and a "no video
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found" item. Since we only want videos, we need to filter out all the others.
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An example for this can be seen here:
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https://www.youtube.com/results?search_query=asdf&page=1
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We already applied a filter to the url, so we don't need to care about channels and
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playlists now.
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*/
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Element el;
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// both types of spell correction item
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if ((el = item.select("div[class*=\"spell-correction\"]").first()) != null) {
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collector.setSuggestion(el.select("a").first().text());
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if (list.children().size() == 1) {
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throw new NothingFoundException("Did you mean: " + el.select("a").first().text());
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}
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// search message item
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} else if ((el = item.select("div[class*=\"search-message\"]").first()) != null) {
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throw new NothingFoundException(el.text());
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// video item type
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} else if ((el = item.select("div[class*=\"yt-lockup-video\"]").first()) != null) {
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collector.commit(new YoutubeStreamInfoItemExtractor(el));
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} else if ((el = item.select("div[class*=\"yt-lockup-channel\"]").first()) != null) {
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collector.commit(new YoutubeChannelInfoItemExtractor(el));
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} else {
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// noinspection ConstantConditions
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// simply ignore not known items
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// throw new ExtractionException("unexpected element found: \"" + item + "\"");
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}
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}
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return collector;
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}
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}
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