gnu-social/actions/apicheckhub.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Show a notice's attachment
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 program. If not, see <http://www.gnu.org/licenses/>.
*
* @category API
* @package GNUSocial
* @author Hannes Mannerheim <h@nnesmannerhe.im>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://www.gnu.org/software/social/
*/
if (!defined('GNUSOCIAL')) { exit(1); }
/**
* Check if a url have a push-hub, i.e. if it is possible to subscribe
*
*/
class ApiCheckHubAction extends ApiAuthAction
{
protected $url = null;
/**
* Take arguments for running
*
* @param array $args $_REQUEST args
*
* @return boolean success flag
*/
protected function prepare($args)
{
parent::prepare($args);
if ($this->format !== 'json') {
$this->clientError('This method currently only serves JSON.', 415);
}
$this->url = urldecode($args['url']);
if (empty($this->url)) {
$this->clientError(_('No URL.'), 403);
}
if (!common_valid_http_url($this->url)) {
$this->clientError(_('Invalid URL.'), 403);
}
return true;
}
/**
* Handle the request
*
* @param array $args $_REQUEST data (unused)
*
* @return void
*/
protected function handle()
{
parent::handle();
$discover = new FeedDiscovery();
try {
$feeduri = $discover->discoverFromURL($this->url);
if($feeduri) {
$huburi = $discover->getHubLink();
}
} catch (FeedSubNoFeedException $e) {
$this->clientError(_('No feed found'), 403);
} catch (FeedSubBadResponseException $e) {
$this->clientError(_('No hub found'), 403);
}
$hub_status = array();
if ($huburi) {
$hub_status = array('huburi' => $huburi);
}
$this->initDocument('json');
$this->showJsonObjects($hub_status);
$this->endDocument('json');
}
/**
* Return true if read only.
*
* MAY override
*
* @param array $args other arguments
*
* @return boolean is read only action?
*/
function isReadOnly($args)
{
return true;
}
}