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<?php
/**
* ownCloud - 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 = $feedFetcher;
}
private function buildUrl($url) {
$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/' . $id;
} else {
return false;
}
}
/**
* This fetcher handles all the remaining urls therefore always returns true
*/
public function canHandle($url){
return $this->buildUrl($url) !== false;
}
/**
* Fetch a feed from remote
* @param string $url remote url of the feed
* @param boolean $getFavicon if the favicon should also be fetched,
* defaults to true
* @param string $lastModified a last modified value from an http header
* defaults to false. If lastModified matches the http header from the feed
* no results are fetched
* @param string $etag an etag from an http header.
* If lastModified matches the http header from the feed
* no results are fetched
* @throws FetcherException if it fails
* @return array an array containing the new feed and its items, first
* element being the Feed and second element being an array of Items
*/
public function fetch($url, $getFavicon=true, $lastModified=null,
$etag=null) {
$transformedUrl = $this->buildUrl($url);
$result = $this->feedFetcher->fetch(
$transformedUrl, $getFavicon, $lastModified, $etag
);
// reset feed url so we know the correct added url for the feed
$result[0]->setUrl($url);
return $result;
}
}
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