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<?php
/**
* Laconica, 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 Laconica
* @author Evan Prodromou <evan@controlyourself.ca>
* @copyright 2008-2009 Control Yourself, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://laconi.ca/
*/
if (!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 Laconica
* @author Evan Prodromou <evan@controlyourself.ca>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://laconi.ca/
*/
class LeavegroupAction extends Action
{
var $group = null;
/**
* Prepare to run
*/
function prepare($args)
{
parent::prepare($args);
if (!common_config('inboxes','enabled')) {
$this->serverError(_('Inboxes must be enabled for groups to work.'));
return false;
}
if (!common_logged_in()) {
$this->clientError(_('You must be logged in to leave a group.'));
return false;
}
$nickname_arg = $this->trimmed('nickname');
$nickname = common_canonical_nickname($nickname_arg);
// Permanent redirect on non-canonical nickname
if ($nickname_arg != $nickname) {
$args = array('nickname' => $nickname);
common_redirect(common_local_url('leavegroup', $args), 301);
return false;
}
if (!$nickname) {
$this->clientError(_('No nickname.'), 404);
return false;
}
$this->group = User_group::staticGet('nickname', $nickname);
if (!$this->group) {
$this->clientError(_('No such group.'), 404);
return false;
}
$cur = common_current_user();
if (!$cur->isMember($this->group)) {
$this->clientError(_('You are not a member of that group.'), 403);
return false;
}
if ($cur->isAdmin($this->group)) {
$this->clientError(_('You may not leave a group while you are its administrator.'), 403);
return false;
}
return true;
}
/**
* Handle the request
*
* On POST, add the current user to the group
*
* @param array $args unused
*
* @return void
*/
function handle($args)
{
parent::handle($args);
$cur = common_current_user();
$member = new Group_member();
$member->group_id = $this->group->id;
$member->profile_id = $cur->id;
if (!$member->find(true)) {
$this->serverError(_('Could not find membership record.'));
return;
}
$result = $member->delete();
if (!$result) {
common_log_db_error($member, 'INSERT', __FILE__);
$this->serverError(sprintf(_('Could not remove user %s to group %s'),
$cur->nickname, $this->group->nickname));
}
if ($this->boolean('ajax')) {
$this->startHTML('text/xml;charset=utf-8');
$this->elementStart('head');
$this->element('title', null, sprintf(_('%s left group %s'),
$cur->nickname,
$this->group->nickname));
$this->elementEnd('head');
$this->elementStart('body');
$jf = new JoinForm($this, $this->group);
$jf->show();
$this->elementEnd('body');
$this->elementEnd('html');
} else {
common_redirect(common_local_url('groupmembers', array('nickname' =>
$this->group->nickname)));
}
}
}
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