]> git.mxchange.org Git - quix0rs-gnu-social.git/blob - actions/leavegroup.php
Merge branch '0.9.x' of git@gitorious.org:statusnet/mainline 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         $nickname = common_canonical_nickname($nickname_arg);
66
67         // Permanent redirect on non-canonical nickname
68
69         if ($nickname_arg != $nickname) {
70             $args = array('nickname' => $nickname);
71             common_redirect(common_local_url('leavegroup', $args), 301);
72             return false;
73         }
74
75         if (!$nickname) {
76             $this->clientError(_('No nickname.'), 404);
77             return false;
78         }
79
80         $this->group = User_group::staticGet('nickname', $nickname);
81
82         if (!$this->group) {
83             $this->clientError(_('No such group.'), 404);
84             return false;
85         }
86
87         $cur = common_current_user();
88
89         if (!$cur->isMember($this->group)) {
90             $this->clientError(_('You are not a member of that group.'), 403);
91             return false;
92         }
93
94         return true;
95     }
96
97     /**
98      * Handle the request
99      *
100      * On POST, add the current user to the group
101      *
102      * @param array $args unused
103      *
104      * @return void
105      */
106
107     function handle($args)
108     {
109         parent::handle($args);
110
111         $cur = common_current_user();
112
113         try {
114             if (Event::handle('StartLeaveGroup', array($this->group, $cur))) {
115                 Group_member::leave($this->group->id, $cur->id);
116                 Event::handle('EndLeaveGroup', array($this->group, $cur));
117             }
118         } catch (Exception $e) {
119             $this->serverError(sprintf(_('Could not remove user %1$s from group %2$s.'),
120                                        $cur->nickname, $this->group->nickname));
121             return;
122         }
123
124         if ($this->boolean('ajax')) {
125             $this->startHTML('text/xml;charset=utf-8');
126             $this->elementStart('head');
127             $this->element('title', null, sprintf(_('%1$s left group %2$s'),
128                                                   $cur->nickname,
129                                                   $this->group->nickname));
130             $this->elementEnd('head');
131             $this->elementStart('body');
132             $jf = new JoinForm($this, $this->group);
133             $jf->show();
134             $this->elementEnd('body');
135             $this->elementEnd('html');
136         } else {
137             common_redirect(common_local_url('groupmembers', array('nickname' =>
138                                                                    $this->group->nickname)),
139                             303);
140         }
141     }
142 }