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 }