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Diffstat (limited to 'actions/leavegroup.php')
| -rw-r--r-- | actions/leavegroup.php | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/actions/leavegroup.php b/actions/leavegroup.php new file mode 100644 index 000000000..c7152e3c0 --- /dev/null +++ b/actions/leavegroup.php @@ -0,0 +1,159 @@ +<?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('editgroup', $args), 301); + return false; + } + + if (!$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))); + } + } +} |