881 lines
36 KiB
Java
881 lines
36 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.mozilla.javascript.Context;
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import org.mozilla.javascript.Function;
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import org.mozilla.javascript.ScriptableObject;
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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.exceptions.ContentNotAvailableException;
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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.AudioStream;
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import org.schabi.newpipe.extractor.stream.Stream;
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import org.schabi.newpipe.extractor.stream.StreamExtractor;
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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.stream.VideoStream;
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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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import java.util.List;
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import java.util.Map;
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import java.util.Vector;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/*
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* Created by Christian Schabesberger on 06.08.15.
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*
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* Copyright (C) Christian Schabesberger 2015 <chris.schabesberger@mailbox.org>
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* YoutubeStreamExtractor.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 YoutubeStreamExtractor extends StreamExtractor {
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private static final String TAG = YoutubeStreamExtractor.class.getSimpleName();
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/*//////////////////////////////////////////////////////////////////////////
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// Exceptions
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//////////////////////////////////////////////////////////////////////////*/
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public class DecryptException extends ParsingException {
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DecryptException(String message, Throwable cause) {
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super(message, cause);
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}
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}
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public class GemaException extends ContentNotAvailableException {
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GemaException(String message) {
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super(message);
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}
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}
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public class LiveStreamException extends ContentNotAvailableException {
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LiveStreamException(String message) {
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super(message);
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}
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}
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/*//////////////////////////////////////////////////////////////////////////*/
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private Document doc;
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private final String dirtyUrl;
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public YoutubeStreamExtractor(UrlIdHandler urlIdHandler, String pageUrl, int serviceId) throws ExtractionException, IOException {
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super(urlIdHandler, urlIdHandler.cleanUrl(pageUrl), serviceId);
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dirtyUrl = pageUrl;
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fetchDocument();
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}
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/*//////////////////////////////////////////////////////////////////////////
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// Impl
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//////////////////////////////////////////////////////////////////////////*/
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@Override
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public String getId() throws ParsingException {
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try {
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return getUrlIdHandler().getId(getUrl());
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} catch (Exception e) {
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throw new ParsingException("Could not get stream id");
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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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if (playerArgs == null) {
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return videoInfoPage.get("title");
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}
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//json player args method
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return playerArgs.getString("title");
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} catch (JSONException je) {//html <meta> method
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je.printStackTrace();
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System.err.println("failed to load title from JSON args; trying to extract it from HTML");
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try { // fall through to fall-back
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return doc.select("meta[name=title]").attr(CONTENT);
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} catch (Exception e) {
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throw new ParsingException("failed permanently to load title.", e);
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}
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}
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}
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@Override
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public String getDescription() throws ParsingException {
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try {
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return doc.select("p[id=\"eow-description\"]").first().html();
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} catch (Exception e) {//todo: add fallback method <-- there is no ... as long as i know
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throw new ParsingException("failed to load description.", e);
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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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try {
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if (playerArgs == null) {
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return videoInfoPage.get("author");
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}
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//json player args method
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return playerArgs.getString("author");
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} catch (JSONException je) {
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je.printStackTrace();
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System.err.println(
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"failed to load uploader name from JSON args; trying to extract it from HTML");
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}
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try {//fall through to fallback HTML method
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return doc.select("div.yt-user-info").first().text();
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} catch (Exception e) {
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throw new ParsingException("failed permanently to load uploader name.", e);
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}
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}
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@Override
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public int getLength() throws ParsingException {
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try {
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if (playerArgs == null) {
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return Integer.valueOf(videoInfoPage.get("length_seconds"));
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}
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return playerArgs.getInt("length_seconds");
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} catch (JSONException e) {//todo: find fallback method
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throw new ParsingException("failed to load video duration from JSON args", 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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try {
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String viewCountString = doc.select("meta[itemprop=interactionCount]").attr(CONTENT);
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return Long.parseLong(viewCountString);
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} catch (Exception e) {//todo: find fallback method
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throw new ParsingException("failed to get number of views", e);
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}
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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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return doc.select("meta[itemprop=datePublished]").attr(CONTENT);
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} catch (Exception e) {//todo: add fallback method
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throw new ParsingException("failed to get upload date.", e);
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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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//first attempt getting a small image version
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//in the html extracting part we try to get a thumbnail with a higher resolution
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// Try to get high resolution thumbnail if it fails use low res from the player instead
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try {
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return doc.select("link[itemprop=\"thumbnailUrl\"]").first().attr("abs:href");
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} catch (Exception e) {
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System.err.println("Could not find high res Thumbnail. Using low res instead");
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}
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try { //fall through to fallback
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return playerArgs.getString("thumbnail_url");
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} catch (JSONException je) {
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throw new ParsingException(
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"failed to extract thumbnail URL from JSON args; trying to extract it from HTML", je);
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} catch (NullPointerException ne) {
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// Get from the video info page instead
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return videoInfoPage.get("thumbnail_url");
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}
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}
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@Override
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public String getUploaderThumbnailUrl() throws ParsingException {
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try {
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return doc.select("a[class*=\"yt-user-photo\"]").first()
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.select("img").first()
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.attr("abs:data-thumb");
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} catch (Exception e) {//todo: add fallback method
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throw new ParsingException("failed to get uploader thumbnail URL.", e);
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}
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}
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@Override
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public String getDashMpdUrl() throws ParsingException {
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try {
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String dashManifestUrl;
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if (videoInfoPage != null && videoInfoPage.containsKey("dashmpd")) {
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dashManifestUrl = videoInfoPage.get("dashmpd");
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} else if (playerArgs.has("dashmpd")) {
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dashManifestUrl = playerArgs.getString("dashmpd");
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} else {
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return "";
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}
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if (!dashManifestUrl.contains("/signature/")) {
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String encryptedSig = Parser.matchGroup1("/s/([a-fA-F0-9\\.]+)", dashManifestUrl);
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String decryptedSig;
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decryptedSig = decryptSignature(encryptedSig, decryptionCode);
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dashManifestUrl = dashManifestUrl.replace("/s/" + encryptedSig, "/signature/" + decryptedSig);
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}
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return dashManifestUrl;
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} catch (Exception e) {
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throw new ParsingException(
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"Could not get \"dashmpd\" maybe VideoInfoPage is broken.", e);
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}
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}
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@Override
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public List<AudioStream> getAudioStreams() throws ParsingException {
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Vector<AudioStream> audioStreams = new Vector<>();
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try {
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String encodedUrlMap;
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// playerArgs could be null if the video is age restricted
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if (playerArgs == null) {
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if (videoInfoPage.containsKey("adaptive_fmts")) {
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encodedUrlMap = videoInfoPage.get("adaptive_fmts");
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} else {
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return null;
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}
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} else {
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if (playerArgs.has("adaptive_fmts")) {
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encodedUrlMap = playerArgs.getString("adaptive_fmts");
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} else {
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return null;
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}
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}
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for (String url_data_str : encodedUrlMap.split(",")) {
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// This loop iterates through multiple streams, therefor tags
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// is related to one and the same stream at a time.
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Map<String, String> tags = Parser.compatParseMap(
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org.jsoup.parser.Parser.unescapeEntities(url_data_str, true));
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int itag = Integer.parseInt(tags.get("itag"));
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if (ItagItem.isSupported(itag)) {
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ItagItem itagItem = ItagItem.getItag(itag);
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if (itagItem.itagType == ItagItem.ItagType.AUDIO) {
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String streamUrl = tags.get("url");
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// if video has a signature: decrypt it and add it to the url
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if (tags.get("s") != null) {
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streamUrl = streamUrl + "&signature="
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+ decryptSignature(tags.get("s"), decryptionCode);
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}
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AudioStream audioStream = new AudioStream(streamUrl, itagItem.mediaFormatId, itagItem.avgBitrate);
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if (!Stream.containSimilarStream(audioStream, audioStreams)) {
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audioStreams.add(audioStream);
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}
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}
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}
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}
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} catch (Exception e) {
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throw new ParsingException("Could not get audiostreams", e);
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}
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return audioStreams;
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}
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@Override
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public List<VideoStream> getVideoStreams() throws ParsingException {
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Vector<VideoStream> videoStreams = new Vector<>();
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try {
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String encodedUrlMap;
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// playerArgs could be null if the video is age restricted
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if (playerArgs == null) {
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encodedUrlMap = videoInfoPage.get(URL_ENCODED_FMT_STREAM_MAP);
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} else {
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encodedUrlMap = playerArgs.getString(URL_ENCODED_FMT_STREAM_MAP);
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}
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for (String url_data_str : encodedUrlMap.split(",")) {
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try {
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// This loop iterates through multiple streams, therefor tags
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// is related to one and the same stream at a time.
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Map<String, String> tags = Parser.compatParseMap(
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org.jsoup.parser.Parser.unescapeEntities(url_data_str, true));
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int itag = Integer.parseInt(tags.get("itag"));
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if (ItagItem.isSupported(itag)) {
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ItagItem itagItem = ItagItem.getItag(itag);
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if (itagItem.itagType == ItagItem.ItagType.VIDEO) {
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String streamUrl = tags.get("url");
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// if video has a signature: decrypt it and add it to the url
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if (tags.get("s") != null) {
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streamUrl = streamUrl + "&signature="
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+ decryptSignature(tags.get("s"), decryptionCode);
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}
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VideoStream videoStream = new VideoStream(streamUrl, itagItem.mediaFormatId, itagItem.resolutionString);
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if (!Stream.containSimilarStream(videoStream, videoStreams)) {
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videoStreams.add(videoStream);
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}
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}
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}
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} catch (Exception e) {
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//todo: dont log throw an error
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System.err.println("Could not get Video stream.");
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e.printStackTrace();
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}
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}
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} catch (Exception e) {
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throw new ParsingException("Failed to get video streams", e);
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}
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if (videoStreams.isEmpty()) {
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throw new ParsingException("Failed to get any video stream");
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}
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return videoStreams;
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}
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@Override
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public List<VideoStream> getVideoOnlyStreams() throws ParsingException {
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Vector<VideoStream> videoOnlyStreams = new Vector<>();
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try {
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String encodedUrlMap;
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// playerArgs could be null if the video is age restricted
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if (playerArgs == null) {
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if (videoInfoPage.containsKey("adaptive_fmts")) {
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encodedUrlMap = videoInfoPage.get("adaptive_fmts");
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} else {
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return null;
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}
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} else {
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if (playerArgs.has("adaptive_fmts")) {
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encodedUrlMap = playerArgs.getString("adaptive_fmts");
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} else {
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return null;
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}
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}
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for (String url_data_str : encodedUrlMap.split(",")) {
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// This loop iterates through multiple streams, therefor tags
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// is related to one and the same stream at a time.
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Map<String, String> tags = Parser.compatParseMap(
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org.jsoup.parser.Parser.unescapeEntities(url_data_str, true));
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int itag = Integer.parseInt(tags.get("itag"));
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if (ItagItem.isSupported(itag)) {
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ItagItem itagItem = ItagItem.getItag(itag);
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if (itagItem.itagType == ItagItem.ItagType.VIDEO_ONLY) {
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String streamUrl = tags.get("url");
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// if video has a signature: decrypt it and add it to the url
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if (tags.get("s") != null) {
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streamUrl = streamUrl + "&signature="
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+ decryptSignature(tags.get("s"), decryptionCode);
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}
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VideoStream videoStream = new VideoStream(streamUrl, itagItem.mediaFormatId, itagItem.resolutionString, true);
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if (!Stream.containSimilarStream(videoStream, videoOnlyStreams)) {
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videoOnlyStreams.add(videoStream);
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}
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}
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}
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}
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} catch (Exception e) {
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throw new ParsingException("Failed to get video only streams", e);
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}
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if (videoOnlyStreams.isEmpty()) {
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throw new ParsingException("Failed to get any video only stream");
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}
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return videoOnlyStreams;
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}
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/**
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* Attempts to parse (and return) the offset to start playing the video from.
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*
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* @return the offset (in seconds), or 0 if no timestamp is found.
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*/
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@Override
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public int getTimeStamp() throws ParsingException {
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String timeStamp;
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try {
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timeStamp = Parser.matchGroup1("((#|&|\\?)t=\\d{0,3}h?\\d{0,3}m?\\d{1,3}s?)", dirtyUrl);
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} catch (Parser.RegexException e) {
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// catch this instantly since an url does not necessarily have to have a time stamp
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// -2 because well the testing system will then know its the regex that failed :/
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// not good i know
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return -2;
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}
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if (!timeStamp.isEmpty()) {
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try {
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String secondsString = "";
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String minutesString = "";
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String hoursString = "";
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try {
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secondsString = Parser.matchGroup1("(\\d{1,3})s", timeStamp);
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minutesString = Parser.matchGroup1("(\\d{1,3})m", timeStamp);
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hoursString = Parser.matchGroup1("(\\d{1,3})h", timeStamp);
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} catch (Exception e) {
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//it could be that time is given in another method
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if (secondsString.isEmpty() //if nothing was got,
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&& minutesString.isEmpty()//treat as unlabelled seconds
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&& hoursString.isEmpty()) {
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secondsString = Parser.matchGroup1("t=(\\d+)", timeStamp);
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}
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}
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int seconds = secondsString.isEmpty() ? 0 : Integer.parseInt(secondsString);
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int minutes = minutesString.isEmpty() ? 0 : Integer.parseInt(minutesString);
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int hours = hoursString.isEmpty() ? 0 : Integer.parseInt(hoursString);
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//don't trust BODMAS!
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return seconds + (60 * minutes) + (3600 * hours);
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//Log.d(TAG, "derived timestamp value:"+ret);
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//the ordering varies internationally
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} catch (ParsingException e) {
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throw new ParsingException("Could not get timestamp.", e);
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}
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} else {
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return 0;
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}
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}
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@Override
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public int getAgeLimit() throws ParsingException {
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if (!isAgeRestricted) {
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return 0;
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}
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try {
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return Integer.valueOf(doc.head()
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.getElementsByAttributeValue("property", "og:restrictions:age")
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.attr(CONTENT).replace("+", ""));
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} catch (Exception e) {
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throw new ParsingException("Could not get age restriction");
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}
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}
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@Override
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public String getAverageRating() throws ParsingException {
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try {
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if (playerArgs == null) {
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return videoInfoPage.get("avg_rating");
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}
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return playerArgs.getString("avg_rating");
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} catch (JSONException e) {
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throw new ParsingException("Could not get Average rating", e);
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}
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}
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@Override
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public int getLikeCount() throws ParsingException {
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String likesString = "";
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try {
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Element button = doc.select("button.like-button-renderer-like-button").first();
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try {
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likesString = button.select("span.yt-uix-button-content").first().text();
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} catch (NullPointerException e) {
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//if this ckicks in our button has no content and thefore likes/dislikes are disabled
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return -1;
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}
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return Integer.parseInt(Utils.removeNonDigitCharacters(likesString));
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} catch (NumberFormatException nfe) {
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throw new ParsingException(
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"failed to parse likesString \"" + likesString + "\" as integers", nfe);
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} catch (Exception e) {
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throw new ParsingException("Could not get like count", e);
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}
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}
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@Override
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public int getDislikeCount() throws ParsingException {
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String dislikesString = "";
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try {
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Element button = doc.select("button.like-button-renderer-dislike-button").first();
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try {
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dislikesString = button.select("span.yt-uix-button-content").first().text();
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} catch (NullPointerException e) {
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|
//if this kicks in our button has no content and therefore likes/dislikes are disabled
|
|
return -1;
|
|
}
|
|
return Integer.parseInt(Utils.removeNonDigitCharacters(dislikesString));
|
|
} catch (NumberFormatException nfe) {
|
|
throw new ParsingException(
|
|
"failed to parse dislikesString \"" + dislikesString + "\" as integers", nfe);
|
|
} catch (Exception e) {
|
|
throw new ParsingException("Could not get dislike count", e);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public StreamInfoItemExtractor getNextVideo() throws ParsingException {
|
|
try {
|
|
return extractVideoPreviewInfo(doc.select("div[class=\"watch-sidebar-section\"]").first()
|
|
.select("li").first());
|
|
} catch (Exception e) {
|
|
throw new ParsingException("Could not get next video", e);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public StreamInfoItemCollector getRelatedVideos() throws ParsingException {
|
|
try {
|
|
StreamInfoItemCollector collector = getStreamPreviewInfoCollector();
|
|
Element ul = doc.select("ul[id=\"watch-related\"]").first();
|
|
if (ul != null) {
|
|
for (Element li : ul.children()) {
|
|
// first check if we have a playlist. If so leave them out
|
|
if (li.select("a[class*=\"content-link\"]").first() != null) {
|
|
collector.commit(extractVideoPreviewInfo(li));
|
|
}
|
|
}
|
|
}
|
|
return collector;
|
|
} catch (Exception e) {
|
|
throw new ParsingException("Could not get related videos", e);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public String getChannelUrl() throws ParsingException {
|
|
try {
|
|
return doc.select("div[class=\"yt-user-info\"]").first().children()
|
|
.select("a").first().attr("abs:href");
|
|
} catch (Exception e) {
|
|
throw new ParsingException("Could not get channel link", e);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public StreamType getStreamType() throws ParsingException {
|
|
//todo: if implementing livestream support this value should be generated dynamically
|
|
return StreamType.VIDEO_STREAM;
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
@Override
|
|
public String getErrorMessage() {
|
|
String errorMessage = doc.select("h1[id=\"unavailable-message\"]").first().text();
|
|
StringBuilder errorReason;
|
|
|
|
if (errorMessage == null || errorMessage.isEmpty()) {
|
|
errorReason = null;
|
|
} else if (errorMessage.contains("GEMA")) {
|
|
// Gema sometimes blocks youtube music content in germany:
|
|
// https://www.gema.de/en/
|
|
// Detailed description:
|
|
// https://en.wikipedia.org/wiki/GEMA_%28German_organization%29
|
|
errorReason = new StringBuilder("GEMA");
|
|
} else {
|
|
errorReason = new StringBuilder(errorMessage);
|
|
errorReason.append(" ");
|
|
errorReason.append(doc.select("[id=\"unavailable-submessage\"]").first().text());
|
|
}
|
|
|
|
return errorReason != null ? errorReason.toString() : null;
|
|
}
|
|
|
|
/*//////////////////////////////////////////////////////////////////////////
|
|
// Utils
|
|
//////////////////////////////////////////////////////////////////////////*/
|
|
|
|
private JSONObject playerArgs;
|
|
private boolean isAgeRestricted;
|
|
private Map<String, String> videoInfoPage;
|
|
|
|
private static final String URL_ENCODED_FMT_STREAM_MAP = "url_encoded_fmt_stream_map";
|
|
private static final String HTTPS = "https:";
|
|
private static final String CONTENT = "content";
|
|
|
|
/**
|
|
* Sometimes if the html page of youtube is already downloaded, youtube web page will internally
|
|
* download the /get_video_info page. Since a certain date dashmpd url is only available over
|
|
* this /get_video_info page, so we always need to download this one to.
|
|
* <p>
|
|
* %%video_id%% will be replaced by the actual video id
|
|
* $$el_type$$ will be replaced by the actual el_type (se the declarations below)
|
|
*/
|
|
private static final String GET_VIDEO_INFO_URL =
|
|
"https://www.youtube.com/get_video_info?video_id=%%video_id%%$$el_type$$&ps=default&eurl=&gl=US&hl=en";
|
|
// eltype is necessary for the url above
|
|
private static final String EL_INFO = "el=info";
|
|
|
|
|
|
// static values
|
|
private static final String DECRYPTION_FUNC_NAME = "decrypt";
|
|
|
|
// cached values
|
|
private static volatile String decryptionCode = "";
|
|
|
|
private void fetchDocument() throws IOException, ReCaptchaException, ParsingException {
|
|
Downloader downloader = NewPipe.getDownloader();
|
|
|
|
String pageContent = downloader.download(getUrl());
|
|
doc = Jsoup.parse(pageContent, getUrl());
|
|
|
|
JSONObject ytPlayerConfig;
|
|
String playerUrl;
|
|
|
|
String videoInfoUrl = GET_VIDEO_INFO_URL.replace("%%video_id%%", getId()).replace("$$el_type$$", "&" + EL_INFO);
|
|
String videoInfoPageString = downloader.download(videoInfoUrl);
|
|
videoInfoPage = Parser.compatParseMap(videoInfoPageString);
|
|
|
|
// Check if the video is age restricted
|
|
if (pageContent.contains("<meta property=\"og:restrictions:age")) {
|
|
playerUrl = getPlayerUrlFromRestrictedVideo(getUrl());
|
|
isAgeRestricted = true;
|
|
} else {
|
|
ytPlayerConfig = getPlayerConfig(pageContent);
|
|
playerArgs = getPlayerArgs(ytPlayerConfig);
|
|
playerUrl = getPlayerUrl(ytPlayerConfig);
|
|
isAgeRestricted = false;
|
|
}
|
|
|
|
if (decryptionCode.isEmpty()) {
|
|
decryptionCode = loadDecryptionCode(playerUrl);
|
|
}
|
|
}
|
|
|
|
private JSONObject getPlayerConfig(String pageContent) throws ParsingException {
|
|
try {
|
|
String ytPlayerConfigRaw =
|
|
Parser.matchGroup1("ytplayer.config\\s*=\\s*(\\{.*?\\});", pageContent);
|
|
return new JSONObject(ytPlayerConfigRaw);
|
|
} catch (Parser.RegexException e) {
|
|
String errorReason = getErrorMessage();
|
|
switch (errorReason) {
|
|
case "GEMA":
|
|
throw new GemaException(errorReason);
|
|
case "":
|
|
throw new ContentNotAvailableException("Content not available: player config empty", e);
|
|
default:
|
|
throw new ContentNotAvailableException("Content not available", e);
|
|
}
|
|
} catch (JSONException e) {
|
|
throw new ParsingException("Could not parse yt player config", e);
|
|
}
|
|
}
|
|
|
|
private JSONObject getPlayerArgs(JSONObject playerConfig) throws ParsingException {
|
|
JSONObject playerArgs;
|
|
|
|
//attempt to load the youtube js player JSON arguments
|
|
boolean isLiveStream = false; //used to determine if this is a livestream or not
|
|
try {
|
|
playerArgs = playerConfig.getJSONObject("args");
|
|
|
|
// check if we have a live stream. We need to filter it, since its not yet supported.
|
|
if ((playerArgs.has("ps") && playerArgs.get("ps").toString().equals("live"))
|
|
|| (playerArgs.get(URL_ENCODED_FMT_STREAM_MAP).toString().isEmpty())) {
|
|
isLiveStream = true;
|
|
}
|
|
} catch (JSONException e) {
|
|
throw new ParsingException("Could not parse yt player config", e);
|
|
}
|
|
if (isLiveStream) {
|
|
throw new LiveStreamException("This is a Life stream. Can't use those right now.");
|
|
}
|
|
|
|
return playerArgs;
|
|
}
|
|
|
|
private String getPlayerUrl(JSONObject playerConfig) throws ParsingException {
|
|
try {
|
|
// The Youtube service needs to be initialized by downloading the
|
|
// js-Youtube-player. This is done in order to get the algorithm
|
|
// for decrypting cryptic signatures inside certain stream urls.
|
|
String playerUrl;
|
|
|
|
JSONObject ytAssets = playerConfig.getJSONObject("assets");
|
|
playerUrl = ytAssets.getString("js");
|
|
|
|
if (playerUrl.startsWith("//")) {
|
|
playerUrl = HTTPS + playerUrl;
|
|
}
|
|
return playerUrl;
|
|
} catch (JSONException e) {
|
|
throw new ParsingException(
|
|
"Could not load decryption code for the Youtube service.", e);
|
|
}
|
|
}
|
|
|
|
private String getPlayerUrlFromRestrictedVideo(String pageUrl) throws ParsingException, ReCaptchaException {
|
|
try {
|
|
Downloader downloader = NewPipe.getDownloader();
|
|
String playerUrl = "";
|
|
String videoId = getUrlIdHandler().getId(pageUrl);
|
|
String embedUrl = "https://www.youtube.com/embed/" + videoId;
|
|
String embedPageContent = downloader.download(embedUrl);
|
|
//todo: find out if this can be reapaced by Parser.matchGroup1()
|
|
Pattern assetsPattern = Pattern.compile("\"assets\":.+?\"js\":\\s*(\"[^\"]+\")");
|
|
Matcher patternMatcher = assetsPattern.matcher(embedPageContent);
|
|
while (patternMatcher.find()) {
|
|
playerUrl = patternMatcher.group(1);
|
|
}
|
|
playerUrl = playerUrl.replace("\\", "").replace("\"", "");
|
|
|
|
if (playerUrl.startsWith("//")) {
|
|
playerUrl = HTTPS + playerUrl;
|
|
}
|
|
return playerUrl;
|
|
} catch (IOException e) {
|
|
throw new ParsingException(
|
|
"Could load decryption code form restricted video for the Youtube service.", e);
|
|
} catch (ReCaptchaException e) {
|
|
throw new ReCaptchaException("reCaptcha Challenge requested");
|
|
}
|
|
}
|
|
|
|
private String loadDecryptionCode(String playerUrl) throws DecryptException {
|
|
String decryptionFuncName;
|
|
String decryptionFunc;
|
|
String helperObjectName;
|
|
String helperObject;
|
|
String callerFunc = "function " + DECRYPTION_FUNC_NAME + "(a){return %%(a);}";
|
|
String decryptionCode;
|
|
|
|
try {
|
|
Downloader downloader = NewPipe.getDownloader();
|
|
if (!playerUrl.contains("https://youtube.com")) {
|
|
//sometimes the https://youtube.com part does not get send with
|
|
//than we have to add it by hand
|
|
playerUrl = "https://youtube.com" + playerUrl;
|
|
}
|
|
String playerCode = downloader.download(playerUrl);
|
|
|
|
decryptionFuncName =
|
|
Parser.matchGroup("([\"\\'])signature\\1\\s*,\\s*([a-zA-Z0-9$]+)\\(", playerCode, 2);
|
|
|
|
String functionPattern = "("
|
|
+ decryptionFuncName.replace("$", "\\$")
|
|
+ "=function\\([a-zA-Z0-9_]+\\)\\{.+?\\})";
|
|
decryptionFunc = "var " + Parser.matchGroup1(functionPattern, playerCode) + ";";
|
|
|
|
helperObjectName = Parser
|
|
.matchGroup1(";([A-Za-z0-9_\\$]{2})\\...\\(", decryptionFunc);
|
|
|
|
String helperPattern = "(var "
|
|
+ helperObjectName.replace("$", "\\$") + "=\\{.+?\\}\\};)";
|
|
helperObject = Parser.matchGroup1(helperPattern, playerCode);
|
|
|
|
|
|
callerFunc = callerFunc.replace("%%", decryptionFuncName);
|
|
decryptionCode = helperObject + decryptionFunc + callerFunc;
|
|
} catch (IOException ioe) {
|
|
throw new DecryptException("Could not load decrypt function", ioe);
|
|
} catch (Exception e) {
|
|
throw new DecryptException("Could not parse decrypt function ", e);
|
|
}
|
|
|
|
return decryptionCode;
|
|
}
|
|
|
|
private String decryptSignature(String encryptedSig, String decryptionCode) throws DecryptException {
|
|
Context context = Context.enter();
|
|
context.setOptimizationLevel(-1);
|
|
Object result = null;
|
|
try {
|
|
ScriptableObject scope = context.initStandardObjects();
|
|
context.evaluateString(scope, decryptionCode, "decryptionCode", 1, null);
|
|
Function decryptionFunc = (Function) scope.get("decrypt", scope);
|
|
result = decryptionFunc.call(context, scope, scope, new Object[]{encryptedSig});
|
|
} catch (Exception e) {
|
|
throw new DecryptException("could not get decrypt signature", e);
|
|
} finally {
|
|
Context.exit();
|
|
}
|
|
return result == null ? "" : result.toString();
|
|
}
|
|
|
|
/**
|
|
* Provides information about links to other videos on the video page, such as related videos.
|
|
* This is encapsulated in a StreamInfoItem object,
|
|
* which is a subset of the fields in a full StreamInfo.
|
|
*/
|
|
private StreamInfoItemExtractor extractVideoPreviewInfo(final Element li) {
|
|
return new StreamInfoItemExtractor() {
|
|
@Override
|
|
public StreamType getStreamType() throws ParsingException {
|
|
return StreamType.VIDEO_STREAM;
|
|
}
|
|
|
|
@Override
|
|
public boolean isAd() throws ParsingException {
|
|
return !li.select("span[class*=\"icon-not-available\"]").isEmpty();
|
|
}
|
|
|
|
@Override
|
|
public String getWebPageUrl() throws ParsingException {
|
|
return li.select("a.content-link").first().attr("abs:href");
|
|
}
|
|
|
|
@Override
|
|
public String getTitle() throws ParsingException {
|
|
//todo: check NullPointerException causing
|
|
return li.select("span.title").first().text();
|
|
//this page causes the NullPointerException, after finding it by searching for "tjvg":
|
|
//https://www.youtube.com/watch?v=Uqg0aEhLFAg
|
|
}
|
|
|
|
@Override
|
|
public int getDuration() throws ParsingException {
|
|
return YoutubeParsingHelper.parseDurationString(
|
|
li.select("span.video-time").first().text());
|
|
}
|
|
|
|
@Override
|
|
public String getUploader() throws ParsingException {
|
|
return li.select("span.g-hovercard").first().text();
|
|
}
|
|
|
|
@Override
|
|
public String getUploadDate() throws ParsingException {
|
|
return null;
|
|
}
|
|
|
|
@Override
|
|
public long getViewCount() throws ParsingException {
|
|
//this line is unused
|
|
//String views = li.select("span.view-count").first().text();
|
|
|
|
//Log.i(TAG, "title:"+info.title);
|
|
//Log.i(TAG, "view count:"+views);
|
|
|
|
try {
|
|
return Long.parseLong(Utils.removeNonDigitCharacters(
|
|
li.select("span.view-count").first().text()));
|
|
} catch (Exception e) {
|
|
//related videos sometimes have no view count
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public String getThumbnailUrl() throws ParsingException {
|
|
Element img = li.select("img").first();
|
|
String thumbnailUrl = img.attr("abs:src");
|
|
// Sometimes youtube sends links to gif files which somehow seem to not exist
|
|
// anymore. Items with such gif also offer a secondary image source. So we are going
|
|
// to use that if we caught such an item.
|
|
if (thumbnailUrl.contains(".gif")) {
|
|
thumbnailUrl = img.attr("data-thumb");
|
|
}
|
|
if (thumbnailUrl.startsWith("//")) {
|
|
thumbnailUrl = HTTPS + thumbnailUrl;
|
|
}
|
|
return thumbnailUrl;
|
|
}
|
|
};
|
|
}
|
|
}
|