]> git.mxchange.org Git - quix0rs-gnu-social.git/blob - actions/leavegroup.php
Merge commit 'origin/0.9.x' into 0.9.x
[quix0rs-gnu-social.git] / actions / leavegroup.php
1 <?php
2 /**
3  * StatusNet, the distributed open-source microblogging tool
4  *
5  * Leave a group
6  *
7  * PHP version 5
8  *
9  * LICENCE: This program is free software: you can redistribute it and/or modify
10  * it under the terms of the GNU Affero General Public License as published by
11  * the Free Software Foundation, either version 3 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU Affero General Public License for more details.
18  *
19  * You should have received a copy of the GNU Affero General Public License
20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
21  *
22  * @category  Group
23  * @package   StatusNet
24  * @author    Evan Prodromou <evan@status.net>
25  * @copyright 2008-2009 StatusNet, Inc.
26  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
27  * @link      http://status.net/
28  */
29
30 if (!defined('STATUSNET') && !defined('LACONICA')) {
31     exit(1);
32 }
33
34 /**
35  * Leave a group
36  *
37  * This is the action for leaving a group. It works more or less like the subscribe action
38  * for users.
39  *
40  * @category Group
41  * @package  StatusNet
42  * @author   Evan Prodromou <evan@status.net>
43  * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
44  * @link     http://status.net/
45  */
46
47 class LeavegroupAction extends Action
48 {
49     var $group = null;
50
51     /**
52      * Prepare to run
53      */
54
55     function prepare($args)
56     {
57         parent::prepare($args);
58
59         if (!common_logged_in()) {
60             $this->clientError(_('You must be logged in to leave a group.'));
61             return false;
62         }
63
64         $nickname_arg = $this->trimmed('nickname');
65         $id = intval($this->arg('id'));
66         if ($id) {
67             $this->group = User_group::staticGet('id', $id);
68         } else if ($nickname_arg) {
69             $nickname = common_canonical_nickname($nickname_arg);
70
71             // Permanent redirect on non-canonical nickname
72
73             if ($nickname_arg != $nickname) {
74                 $args = array('nickname' => $nickname);
75                 common_redirect(common_local_url('leavegroup', $args), 301);
76                 return false;
77             }
78
79             $local = Local_group::staticGet('nickname', $nickname);
80
81             if (!$local) {
82                 $this->clientError(_('No such group.'), 404);
83                 return false;
84             }
85
86             $this->group = User_group::staticGet('id', $local->group_id);
87         } else {
88             $this->clientError(_('No nickname or ID.'), 404);
89             return false;
90         }
91
92         if (!$this->group) {
93             $this->clientError(_('No such group.'), 404);
94             return false;
95         }
96
97         $cur = common_current_user();
98
99         if (!$cur->isMember($this->group)) {
100             $this->clientError(_('You are not a member of that group.'), 403);
101             return false;
102         }
103
104         return true;
105     }
106
107     /**
108      * Handle the request
109      *
110      * On POST, add the current user to the group
111      *
112      * @param array $args unused
113      *
114      * @return void
115      */
116
117     function handle($args)
118     {
119         parent::handle($args);
120
121         $cur = common_current_user();
122
123         try {
124             if (Event::handle('StartLeaveGroup', array($this->group, $cur))) {
125                 Group_member::leave($this->group->id, $cur->id);
126                 Event::handle('EndLeaveGroup', array($this->group, $cur));
127             }
128         } catch (Exception $e) {
129             $this->serverError(sprintf(_('Could not remove user %1$s from group %2$s.'),
130                                        $cur->nickname, $this->group->nickname));
131             return;
132         }
133
134         if ($this->boolean('ajax')) {
135             $this->startHTML('text/xml;charset=utf-8');
136             $this->elementStart('head');
137             $this->element('title', null, sprintf(_('%1$s left group %2$s'),
138                                                   $cur->nickname,
139                                                   $this->group->nickname));
140             $this->elementEnd('head');
141             $this->elementStart('body');
142             $jf = new JoinForm($this, $this->group);
143             $jf->show();
144             $this->elementEnd('body');
145             $this->elementEnd('html');
146         } else {
147             common_redirect(common_local_url('groupmembers', array('nickname' =>
148                                                                    $this->group->nickname)),
149                             303);
150         }
151     }
152 }