gnu-social/actions/cancelsubscription.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Leave a group
*
* 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 Group
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2008-2009 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
/**
* Leave a group
*
* This is the action for leaving a group. It works more or less like the subscribe action
* for users.
*
* @category Group
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
class CancelsubscriptionAction extends Action
{
function handle($args)
{
parent::handle($args);
if ($this->boolean('ajax')) {
StatusNet::setApi(true);
}
if (!common_logged_in()) {
// TRANS: Error message displayed when trying to perform an action that requires a logged in user.
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$this->clientError(_('Not logged in.'));
return;
}
$user = common_current_user();
if ($_SERVER['REQUEST_METHOD'] != 'POST') {
common_redirect(common_local_url('subscriptions',
array('nickname' => $user->nickname)));
return;
}
/* Use a session token for CSRF protection. */
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
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// TRANS: Client error displayed when the session token does not match or is not given.
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$this->clientError(_('There was a problem with your session token. ' .
'Try again, please.'));
return;
}
$other_id = $this->arg('unsubscribeto');
if (!$other_id) {
// TRANS: Client error displayed when trying to leave a group without specifying an ID.
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$this->clientError(_('No profile ID in request.'));
return;
}
$other = Profile::getKV('id', $other_id);
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if (!$other) {
// TRANS: Client error displayed when trying to leave a non-existing group.
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$this->clientError(_('No profile with that ID.'));
return;
}
$this->request = Subscription_queue::pkeyGet(array('subscriber' => $user->id,
'subscribed' => $other->id));
if (empty($this->request)) {
// TRANS: Client error displayed when trying to approve a non-existing group join request.
// TRANS: %s is a user nickname.
$this->clientError(sprintf(_('%s is not in the moderation queue for this group.'), $this->profile->nickname), 403);
}
$this->request->abort();
if ($this->boolean('ajax')) {
$this->startHTML('text/xml;charset=utf-8');
$this->elementStart('head');
// TRANS: Title after unsubscribing from a group.
$this->element('title', null, _m('TITLE','Unsubscribed'));
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$this->elementEnd('head');
$this->elementStart('body');
$subscribe = new SubscribeForm($this, $other);
$subscribe->show();
$this->elementEnd('body');
$this->endHTML();
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} else {
common_redirect(common_local_url('subscriptions',
array('nickname' => $user->nickname)),
303);
}
}
}