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<?php
/**
* Nextcloud - News
*
* This file is licensed under the Affero General Public License version 3 or
* later. See the COPYING file.
*
* @author Bernhard Posselt <dev@bernhard-posselt.com>
* @copyright Bernhard Posselt 2012, 2014
*/
namespace OCA\News\Fetcher;
class YoutubeFetcher implements IFeedFetcher
{
private $feedFetcher;
public function __construct(FeedFetcher $feedFetcher)
{
$this->feedFetcher = $feedFetcher;
}
/**
* Build YouTube URL
*
* @param string $url
*
* @return string
*/
private function buildUrl(string $url): string
{
$baseRegex = '%(?:https?://|//)?(?:www.)?youtube.com';
$playRegex = $baseRegex . '.*?list=([^&]*)%';
if (preg_match($playRegex, $url, $matches)) {
$id = $matches[1];
return 'http://gdata.youtube.com/feeds/api/playlists/' . $id;
} else {
return $url;
}
}
/**
* Check if the URL is a youtube URL by reformatting it.
*
* @param string $url the url that should be fetched
*
* @return bool
*/
public function canHandle(string $url): bool
{
return $this->buildUrl($url) !== $url;
}
/**
* Fetch a feed from remote
*
* @inheritdoc
*/
public function fetch(
string $url,
bool $favicon,
?string $lastModified,
bool $fullTextEnabled,
?string $user,
?string $password
): array {
$transformedUrl = $this->buildUrl($url);
$result = $this->feedFetcher->fetch(
$transformedUrl,
$favicon,
$lastModified,
$fullTextEnabled,
$user,
$password
);
// reset feed url so we know the correct added url for the feed
$result[0]->setUrl($url);
return $result;
}
}
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