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[quix0rs-gnu-social.git] / actions / foafgroup.php
1 <?php
2 /*
3  * StatusNet the distributed open-source microblogging tool
4  * Copyright (C) 2008, 2009, StatusNet, Inc.
5  *
6  * This program is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU Affero General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU Affero General Public License for more details.
15  *
16  * You should have received a copy of the GNU Affero General Public License
17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
18  *
19  * @category  Mail
20  * @package   StatusNet
21  * @author    Evan Prodromou <evan@status.net>
22  * @author    Toby Inkster <mail@tobyinkster.co.uk>
23  * @copyright 2009 StatusNet, Inc.
24  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
25  * @link      http://status.net/
26  */
27
28 if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
29
30 class FoafGroupAction extends Action
31 {
32     function isReadOnly($args)
33     {
34         return true;
35     }
36
37     function prepare($args)
38     {
39         parent::prepare($args);
40
41         $nickname_arg = $this->arg('nickname');
42
43         if (empty($nickname_arg)) {
44             $this->clientError(_('No such group.'), 404);
45             return false;
46         }
47
48         $this->nickname = common_canonical_nickname($nickname_arg);
49
50         // Permanent redirect on non-canonical nickname
51
52         if ($nickname_arg != $this->nickname) {
53             common_redirect(common_local_url('foafgroup',
54                                              array('nickname' => $this->nickname)),
55                             301);
56             return false;
57         }
58
59         $this->group = User_group::staticGet('nickname', $this->nickname);
60
61         if (!$this->group) {
62             $this->clientError(_('No such group.'), 404);
63             return false;
64         }
65
66         common_set_returnto($this->selfUrl());
67
68         return true;
69     }
70
71     function handle($args)
72     {
73         parent::handle($args);
74
75         header('Content-Type: application/rdf+xml');
76
77         $this->startXML();
78         $this->elementStart('rdf:RDF', array('xmlns:rdf' =>
79                                               'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
80                                               'xmlns:dcterms' =>
81                                               'http://purl.org/dc/terms/',
82                                               'xmlns:sioc' =>
83                                               'http://rdfs.org/sioc/ns#',
84                                               'xmlns:foaf' =>
85                                               'http://xmlns.com/foaf/0.1/',
86                                               'xmlns:statusnet' =>
87                                               'http://status.net/ont/',
88                                               'xmlns' => 'http://xmlns.com/foaf/0.1/'));
89
90         $this->showPpd(common_local_url('foafgroup', array('nickname' => $this->nickname)), $this->group->permalink());
91
92         $this->elementStart('Group', array('rdf:about' =>
93                                              $this->group->permalink()));
94         if ($this->group->fullname) {
95             $this->element('name', null, $this->group->fullname);
96         }
97         if ($this->group->description) {
98             $this->element('dcterms:description', null, $this->group->description);
99         }
100         if ($this->group->nickname) {
101             $this->element('dcterms:identifier', null, $this->group->nickname);
102             $this->element('nick', null, $this->group->nickname);
103         }
104         foreach ($this->group->getAliases() as $alias) {
105             $this->element('nick', null, $alias);
106         }
107         if ($this->group->homeUrl()) {
108             $this->element('weblog', array('rdf:resource' => $this->group->homeUrl()));
109         }
110         if ($this->group->homepage) {
111             $this->element('page', array('rdf:resource' => $this->group->homepage));
112         }
113         if ($this->group->homepage_logo) {
114             $this->element('depiction', array('rdf:resource' => $this->group->homepage_logo));
115         }
116         
117         $members = $this->group->getMembers();
118         $member_details = array();
119         while ($members->fetch()) {
120             $member_uri = common_local_url('userbyid', array('id'=>$members->id));
121             $member_details[$member_uri] = array(
122                                         'nickname' => $members->nickname
123                                         );
124             $this->element('member', array('rdf:resource' => $member_uri));
125         }
126         
127         $admins = $this->group->getAdmins();
128         while ($admins->fetch()) {
129             $admin_uri = common_local_url('userbyid', array('id'=>$admins->id));
130             $member_details[$admin_uri]['is_admin'] = true;
131             $this->element('statusnet:groupAdmin', array('rdf:resource' => $admin_uri));
132         }
133
134         $this->elementEnd('Group');
135         
136         ksort($member_details);
137         foreach ($member_details as $uri => $details) {
138             if ($details['is_admin'])
139             {
140                 $this->elementStart('Agent', array('rdf:about' => $uri));
141                 $this->element('nick', null, $details['nickname']);
142                 $this->elementStart('holdsAccount');
143                 $this->elementStart('sioc:User', array('rdf:about'=>$uri.'#acct'));
144                 $this->elementStart('sioc:has_function');
145                 $this->elementStart('statusnet:GroupAdminRole');
146                 $this->element('sioc:scope', array('rdf:resource' => $this->group->permalink()));
147                 $this->elementEnd('statusnet:GroupAdminRole');
148                 $this->elementEnd('sioc:has_function');
149                 $this->elementEnd('sioc:User');
150                 $this->elementEnd('holdsAccount');
151                 $this->elementEnd('Agent');
152             }
153             else
154             {
155                 $this->element('Agent', array(
156                                         'foaf:nick' => $details['nickname'],
157                                         'rdf:about' => $uri,
158                                         ));
159             }
160         }
161         
162         $this->elementEnd('rdf:RDF');
163         $this->endXML();
164     }
165
166     function showPpd($foaf_url, $person_uri)
167     {
168         $this->elementStart('Document', array('rdf:about' => $foaf_url));
169         $this->element('primaryTopic', array('rdf:resource' => $person_uri));
170         $this->elementEnd('Document');
171     }
172
173 }