NewPipeExtractor/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeStreamInfoItemExtrac...

297 lines
10 KiB
Java

package org.schabi.newpipe.extractor.services.youtube.extractors;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import org.schabi.newpipe.extractor.exceptions.ParsingException;
import org.schabi.newpipe.extractor.localization.TimeAgoParser;
import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeParsingHelper;
import org.schabi.newpipe.extractor.stream.StreamInfoItemExtractor;
import org.schabi.newpipe.extractor.stream.StreamType;
import org.schabi.newpipe.extractor.utils.Utils;
import javax.annotation.Nullable;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
/*
* Copyright (C) Christian Schabesberger 2016 <chris.schabesberger@mailbox.org>
* YoutubeStreamInfoItemExtractor.java is part of NewPipe.
*
* NewPipe is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* NewPipe is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with NewPipe. If not, see <http://www.gnu.org/licenses/>.
*/
public class YoutubeStreamInfoItemExtractor implements StreamInfoItemExtractor {
private final Element item;
private final TimeAgoParser timeAgoParser;
private String cachedUploadDate;
/**
* Creates an extractor of StreamInfoItems from a YouTube page.
* @param item The page element
* @param timeAgoParser A parser of the textual dates or {@code null}.
*/
public YoutubeStreamInfoItemExtractor(Element item, @Nullable TimeAgoParser timeAgoParser) {
this.item = item;
this.timeAgoParser = timeAgoParser;
}
@Override
public StreamType getStreamType() throws ParsingException {
if (isLiveStream(item)) {
return StreamType.LIVE_STREAM;
} else {
return StreamType.VIDEO_STREAM;
}
}
@Override
public boolean isAd() throws ParsingException {
return !item.select("span[class*=\"icon-not-available\"]").isEmpty()
|| !item.select("span[class*=\"yt-badge-ad\"]").isEmpty()
|| isPremiumVideo();
}
private boolean isPremiumVideo() {
Element premiumSpan = item.select("span[class=\"standalone-collection-badge-renderer-red-text\"]").first();
if(premiumSpan == null) return false;
// if this span has text it most likely says ("Free Video") so we can play this
if(premiumSpan.hasText()) return false;
return true;
}
@Override
public String getUrl() throws ParsingException {
try {
Element el = item.select("div[class*=\"yt-lockup-video\"]").first();
Element dl = el.select("h3").first().select("a").first();
return dl.attr("abs:href");
} catch (Exception e) {
throw new ParsingException("Could not get web page url for the video", e);
}
}
@Override
public String getName() throws ParsingException {
try {
Element el = item.select("div[class*=\"yt-lockup-video\"]").first();
Element dl = el.select("h3").first().select("a").first();
return dl.text();
} catch (Exception e) {
throw new ParsingException("Could not get title", e);
}
}
@Override
public long getDuration() throws ParsingException {
try {
if (getStreamType() == StreamType.LIVE_STREAM) return -1;
final Element duration = item.select("span[class*=\"video-time\"]").first();
// apparently on youtube, video-time element will not show up if the video has a duration of 00:00
// see: https://www.youtube.com/results?sp=EgIQAVAU&q=asdfgf
return duration == null ? 0 : YoutubeParsingHelper.parseDurationString(duration.text());
} catch (Exception e) {
throw new ParsingException("Could not get Duration: " + getUrl(), e);
}
}
@Override
public String getUploaderName() throws ParsingException {
try {
return item.select("div[class=\"yt-lockup-byline\"]").first()
.select("a").first()
.text();
} catch (Exception e) {
throw new ParsingException("Could not get uploader", e);
}
}
@Override
public String getUploaderUrl() throws ParsingException {
// this url is not always in the form "/channel/..."
// sometimes Youtube provides urls in the from "/user/..."
try {
try {
return item.select("div[class=\"yt-lockup-byline\"]").first()
.select("a").first()
.attr("abs:href");
} catch (Exception e){}
// try this if the first didn't work
return item.select("span[class=\"title\"")
.text().split(" - ")[0];
} catch (Exception e) {
System.out.println(item.html());
throw new ParsingException("Could not get uploader url", e);
}
}
@Override
public String getTextualUploadDate() throws ParsingException {
if (getStreamType().equals(StreamType.LIVE_STREAM)) {
return null;
}
if (cachedUploadDate != null) {
return cachedUploadDate;
}
try {
if (isVideoReminder()) {
final Calendar calendar = getDateFromReminder();
if (calendar != null) {
return cachedUploadDate = new SimpleDateFormat("yyyy-MM-dd HH:mm")
.format(calendar.getTime());
}
}
Element meta = item.select("div[class=\"yt-lockup-meta\"]").first();
if (meta == null) return "";
final Elements li = meta.select("li");
if (li.isEmpty()) return "";
return cachedUploadDate = li.first().text();
} catch (Exception e) {
throw new ParsingException("Could not get upload date", e);
}
}
@Override
public Calendar getUploadDate() throws ParsingException {
if (getStreamType().equals(StreamType.LIVE_STREAM)) {
return null;
}
if (isVideoReminder()) {
final Calendar calendar = getDateFromReminder();
if (calendar != null) {
return calendar;
}
}
String textualUploadDate = getTextualUploadDate();
if (timeAgoParser != null && textualUploadDate != null && !textualUploadDate.isEmpty()) {
return timeAgoParser.parse(textualUploadDate);
} else {
return null;
}
}
@Override
public long getViewCount() throws ParsingException {
String input;
final Element spanViewCount = item.select("span.view-count").first();
if (spanViewCount != null) {
input = spanViewCount.text();
} else if (getStreamType().equals(StreamType.LIVE_STREAM)) {
Element meta = item.select("ul.yt-lockup-meta-info").first();
if (meta == null) return 0;
final Elements li = meta.select("li");
if (li.isEmpty()) return 0;
input = li.first().text();
} else {
try {
Element meta = item.select("div.yt-lockup-meta").first();
if (meta == null) return -1;
// This case can happen if google releases a special video
if (meta.select("li").size() < 2) return -1;
input = meta.select("li").get(1).text();
} catch (IndexOutOfBoundsException e) {
throw new ParsingException("Could not parse yt-lockup-meta although available: " + getUrl(), e);
}
}
if (input == null) {
throw new ParsingException("Input is null");
}
try {
return Long.parseLong(Utils.removeNonDigitCharacters(input));
} catch (NumberFormatException e) {
// if this happens the video probably has no views
if (!input.isEmpty()){
return 0;
}
throw new ParsingException("Could not handle input: " + input, e);
}
}
@Override
public String getThumbnailUrl() throws ParsingException {
try {
String url;
Element te = item.select("div[class=\"yt-thumb video-thumb\"]").first()
.select("img").first();
url = te.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've caught such an item.
if (url.contains(".gif")) {
url = te.attr("abs:data-thumb");
}
return url;
} catch (Exception e) {
throw new ParsingException("Could not get thumbnail url", e);
}
}
private boolean isVideoReminder() {
return !item.select("span.yt-uix-livereminder").isEmpty();
}
private Calendar getDateFromReminder() throws ParsingException {
final Element timeFuture = item.select("span.yt-badge.localized-date").first();
if (timeFuture == null) {
throw new ParsingException("Span timeFuture is null");
}
final String timestamp = timeFuture.attr("data-timestamp");
if (!timestamp.isEmpty()) {
try {
final Calendar calendar = Calendar.getInstance();
calendar.setTime(new Date(Long.parseLong(timestamp) * 1000L));
return calendar;
} catch (Exception e) {
throw new ParsingException("Could not parse = \"" + timestamp + "\"");
}
}
throw new ParsingException("Could not parse date from reminder element: \"" + timeFuture + "\"");
}
/**
* Generic method that checks if the element contains any clues that it's a livestream item
*/
protected static boolean isLiveStream(Element item) {
return !item.select("span[class*=\"yt-badge-live\"]").isEmpty()
|| !item.select("span[class*=\"video-time-overlay-live\"]").isEmpty();
}
}