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<?php
/**
* ownCloud - News
*
* @author Alessandro Cosentino
* @author Bernhard Posselt
* @copyright 2012 Alessandro Cosentino cosenal@gmail.com
* @copyright 2012 Bernhard Posselt dev@bernhard-posselt.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\News\Utility;
class TwitterFetcher implements IFeedFetcher {
private $fetcher;
private $regex;
public function __construct(FeedFetcher $fetcher){
$this->fetcher = $fetcher;
// matches the following urls and extracts the username
// https://twitter.com/GeorgeTakei
// https://www.twitter.com/GeorgeTakei
// http://twitter.com/GeorgeTakei
// http://www.twitter.com/GeorgeTakei
// www.twitter.com/GeorgeTakei
// twitter.com/GeorgeTakei
$this->regex = '/^(?:https?:\/\/)?(?:www\.)?' .
'twitter.com\/([\pL\pN\pM]+)$/u';
}
public function canHandle($url){
return preg_match($this->regex, $url) == true;
}
public function fetch($url, $getFavicon=true){
preg_match($this->regex, $url, $match);
// FIXME: implement twitter api to be future proof
// deprecated Twitter RSS API
$rssUrl = 'https://api.twitter.com/1/statuses/user_timeline.' .
'rss?screen_name=' . $match[1];
// use transformed url to fetch the rss feeds with the default fetcher
return $this->fetcher->fetch($rssUrl, $getFavicon);
}
}
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