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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 Alessandro Cosentino <cosenal@gmail.com>
* @author Bernhard Posselt <dev@bernhard-posselt.com>
* @copyright Alessandro Cosentino 2012
* @copyright Bernhard Posselt 2012, 2014
*/
namespace OCA\News\Fetcher;
class Fetcher {
private $fetchers;
public function __construct(){
$this->fetchers = [];
}
/**
* Add an additional fetcher
* @param IFeedFetcher $fetcher the fetcher
*/
public function registerFetcher(IFeedFetcher $fetcher){
$this->fetchers[] = $fetcher;
}
/**
* 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 $etag an etag from an http header.
* If lastModified matches the http header from the feed
* no results are fetched
* @throws FetcherException if simple pie fails
* @return array an array containing the new feed and its items, first
* element being the Feed and second element being an array of Items
*/
public function fetch($url, $getFavicon=true, $lastModified=null,
$etag=null) {
foreach($this->fetchers as $fetcher){
if($fetcher->canHandle($url)){
return $fetcher->fetch($url, $getFavicon, $lastModified, $etag);
}
}
return [null, []];
}
}
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