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<?php
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Core\Resource\OnlineMedia\Helpers;
use TYPO3\CMS\Core\Resource\File;
use TYPO3\CMS\Core\Resource\Folder;
use TYPO3\CMS\Core\Utility\GeneralUtility;
/**
* Youtube helper class
*/
class YouTubeHelper extends AbstractOEmbedHelper
{
/**
* Get public url
*
* @return string|null
*/
public function getPublicUrl(File $file)
{
$videoId = $this->getOnlineMediaId($file);
return sprintf('https://www.youtube.com/watch?v=%s', rawurlencode($videoId));
}
/**
* Get local absolute file path to preview image
*
* @return string
*/
public function getPreviewImage(File $file)
{
$videoId = $this->getOnlineMediaId($file);
$temporaryFileName = $this->getTempFolderPath() . 'youtube_' . md5($videoId) . '.jpg';
if (!file_exists($temporaryFileName)) {
$tryNames = ['maxresdefault.jpg', 'sddefault.jpg', 'hqdefault.jpg', 'mqdefault.jpg', '0.jpg'];
foreach ($tryNames as $tryName) {
$previewImage = GeneralUtility::getUrl(
sprintf('https://img.youtube.com/vi/%s/%s', $videoId, $tryName)
);
if ($previewImage !== false) {
file_put_contents($temporaryFileName, $previewImage);
GeneralUtility::fixPermissions($temporaryFileName);
break;
}
}
}
return $temporaryFileName;
}
/**
* Try to transform given URL to a File
*
* @param string $url
* @return File|null
*/
public function transformUrlToFile($url, Folder $targetFolder)
{
$videoId = null;
// Try to get the YouTube code from given url.
// These formats are supported with and without http(s)://
// - youtu.be/<code> # Share URL
// - www.youtube.com/watch?v=<code> # Normal web link
// - www.youtube.com/v/<code>
// - www.youtube-nocookie.com/v/<code> # youtube-nocookie.com web link
// - www.youtube.com/embed/<code> # URL form iframe embed code, can also get code from full iframe snippet
// - www.youtube.com/shorts/<code>
if (preg_match('%(?:youtube(?:-nocookie)?\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?|shorts)/|.*[?&]v=)|youtu\.be/)([^"&?/ ]{11})%i', $url, $match)) {
$videoId = $match[1];
}
if (empty($videoId)) {
return null;
}
return $this->transformMediaIdToFile($videoId, $targetFolder, $this->extension);
}
/**
* Get oEmbed url to retrieve oEmbed data
*
* @param string $mediaId
* @param string $format
* @return string
*/
protected function getOEmbedUrl($mediaId, $format = 'json')
{
return sprintf(
'https://www.youtube.com/oembed?url=%s&format=%s&maxwidth=2048&maxheight=2048',
rawurlencode(sprintf('https://www.youtube.com/watch?v=%s', rawurlencode($mediaId))),
rawurlencode($format)
);
}
}