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         $local = Local_group::staticGet('nickname', $nickname);
  60
  61         if (!$local) {
  62             $this->clientError(_('No such group.'), 404);
  63             return false;
  64         }
  65
  66         $this->group = User_group::staticGet('id', $local->group_id);
  67
  68         if (!$this->group) {
  69             $this->clientError(_('No such group.'), 404);
  70             return false;
  71         }
  72
  73         common_set_returnto($this->selfUrl());
  74
  75         return true;
  76     }
  77
  78     function handle($args)
  79     {
  80         parent::handle($args);
  81
  82         header('Content-Type: application/rdf+xml');
  83
  84         $this->startXML();
  85         $this->elementStart('rdf:RDF', array('xmlns:rdf' =>
  86                                               'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
  87                                               'xmlns:dcterms' =>
  88                                               'http://purl.org/dc/terms/',
  89                                               'xmlns:sioc' =>
  90                                               'http://rdfs.org/sioc/ns#',
  91                                               'xmlns:foaf' =>
  92                                               'http://xmlns.com/foaf/0.1/',
  93                                               'xmlns:statusnet' =>
  94                                               'http://status.net/ont/',
  95                                               'xmlns' => 'http://xmlns.com/foaf/0.1/'));
  96
  97         $this->showPpd(common_local_url('foafgroup', array('nickname' => $this->nickname)), $this->group->permalink());
  98
  99         $this->elementStart('Group', array('rdf:about' =>
 100                                              $this->group->permalink()));
 101         if ($this->group->fullname) {
 102             $this->element('name', null, $this->group->fullname);
 103         }
 104         if ($this->group->description) {
 105             $this->element('dcterms:description', null, $this->group->description);
 106         }
 107         if ($this->group->nickname) {
 108             $this->element('dcterms:identifier', null, $this->group->nickname);
 109             $this->element('nick', null, $this->group->nickname);
 110         }
 111         foreach ($this->group->getAliases() as $alias) {
 112             $this->element('nick', null, $alias);
 113         }
 114         if ($this->group->homeUrl()) {
 115             $this->element('weblog', array('rdf:resource' => $this->group->homeUrl()));
 116         }
 117         if ($this->group->homepage) {
 118             $this->element('page', array('rdf:resource' => $this->group->homepage));
 119         }
 120         if ($this->group->homepage_logo) {
 121             $this->element('depiction', array('rdf:resource' => $this->group->homepage_logo));
 122         }
 123
 124         $members = $this->group->getMembers();
 125         $member_details = array();
 126         while ($members->fetch()) {
 127             $member_uri = common_local_url('userbyid', array('id'=>$members->id));
 128             $member_details[$member_uri] = array(
 129                                         'nickname' => $members->nickname
 130                                         );
 131             $this->element('member', array('rdf:resource' => $member_uri));
 132         }
 133
 134         $admins = $this->group->getAdmins();
 135         while ($admins->fetch()) {
 136             $admin_uri = common_local_url('userbyid', array('id'=>$admins->id));
 137             $member_details[$admin_uri]['is_admin'] = true;
 138             $this->element('statusnet:groupAdmin', array('rdf:resource' => $admin_uri));
 139         }
 140
 141         $this->elementEnd('Group');
 142
 143         ksort($member_details);
 144         foreach ($member_details as $uri => $details) {
 145             if ($details['is_admin'])
 146             {
 147                 $this->elementStart('Agent', array('rdf:about' => $uri));
 148                 $this->element('nick', null, $details['nickname']);
 149                 $this->elementStart('holdsAccount');
 150                 $this->elementStart('sioc:User', array('rdf:about'=>$uri.'#acct'));
 151                 $this->elementStart('sioc:has_function');
 152                 $this->elementStart('statusnet:GroupAdminRole');
 153                 $this->element('sioc:scope', array('rdf:resource' => $this->group->permalink()));
 154                 $this->elementEnd('statusnet:GroupAdminRole');
 155                 $this->elementEnd('sioc:has_function');
 156                 $this->elementEnd('sioc:User');
 157                 $this->elementEnd('holdsAccount');
 158                 $this->elementEnd('Agent');
 159             }
 160             else
 161             {
 162                 $this->element('Agent', array(
 163                                         'foaf:nick' => $details['nickname'],
 164                                         'rdf:about' => $uri,
 165                                         ));
 166             }
 167         }
 168
 169         $this->elementEnd('rdf:RDF');
 170         $this->endXML();
 171     }
 172
 173     function showPpd($foaf_url, $person_uri)
 174     {
 175         $this->elementStart('Document', array('rdf:about' => $foaf_url));
 176         $this->element('primaryTopic', array('rdf:resource' => $person_uri));
 177         $this->elementEnd('Document');
 178     }
 179
 180 }