classes/xnetsession.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2011 Polytechnique.org                              *
   4  *  http://opensource.polytechnique.org/                                   *
   5  *                                                                         *
   6  *  This program is free software; you can redistribute it and/or modify   *
   7  *  it under the terms of the GNU General Public License as published by   *
   8  *  the Free Software Foundation; either version 2 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 General Public License for more details.                           *
  15  *                                                                         *
  16  *  You should have received a copy of the GNU General Public License      *
  17  *  along with this program; if not, write to the Free Software            *
  18  *  Foundation, Inc.,                                                      *
  19  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
  20  ***************************************************************************/
  21
  22 class XnetSession extends XorgSession
  23 {
  24     public function __construct()
  25     {
  26         parent::__construct();
  27     }
  28
  29     public function startAvailableAuth()
  30     {
  31         if (!S::logged() && Get::has('auth')) {
  32             if (!$this->start(AUTH_MDP)) {
  33                 return false;
  34             }
  35         }
  36
  37         if (!S::logged() && Post::has('auth_type') && Post::v('auth_type') == 'xnet' && !Post::has('wait')) {
  38             $type = XDB::fetchOneCell('SELECT  type
  39                                          FROM  accounts
  40                                         WHERE  hruid = {?}',
  41                                       Post::v('username'));
  42             if (!is_null($type) && $type != 'xnet') {
  43                 Platal::page()->trigErrorRedirect('Ce formulaire d\'authentification est réservé aux extérieurs à la communauté polytechnicienne.', '');
  44             }
  45
  46             $user = parent::doAuth(AUTH_MDP);
  47             if (is_null($user)) {
  48                 return false;
  49             }
  50             if (!parent::checkAuth(AUTH_MDP) || !parent::startSessionAs($user, AUTH_MDP)) {
  51                 $this->destroy();
  52                 return false;
  53             }
  54         }
  55
  56         global $globals;
  57         if (!S::logged() && $globals->xnet->auth_baseurl) {
  58             // prevent connection to be linked to disconnection
  59             if (($i = strpos($_SERVER['REQUEST_URI'], 'exit')) !== false)
  60                 $returl = "http://{$_SERVER['SERVER_NAME']}".substr($_SERVER['REQUEST_URI'], 0, $i);
  61             else
  62                 $returl = "http://{$_SERVER['SERVER_NAME']}{$_SERVER['REQUEST_URI']}";
  63             $url  = $globals->xnet->auth_baseurl;
  64             $url .= "?session=" . session_id();
  65             $url .= "&challenge=" . S::v('challenge');
  66             $url .= "&pass=" . md5(S::v('challenge') . $globals->xnet->secret);
  67             $url .= "&url=".urlencode($returl);
  68             S::set('loginX', $url);
  69         }
  70
  71         if (S::logged() && $globals->asso()) {
  72             $perms = S::v('perms');
  73             $perms->rmFlag('groupadmin');
  74             $perms->rmFlag('groupmember');
  75             $perms->rmFlag('groupannu');
  76             if (may_update()) {
  77                 $perms->addFlag('groupadmin');
  78                 $perms->addFlag('groupmember');
  79                 $perms->addFlag('groupannu');
  80             }
  81             if (is_member()) {
  82                 $perms->addFlag('groupmember');
  83                 if ($globals->asso('pub') != 'private') {
  84                     $perms->addFlag('groupannu');
  85                 }
  86             } else if ($globals->asso('pub') == 'public') {
  87                 $perms->addFlag('groupannu');
  88             }
  89             if ($globals->asso('cat') == 'Promotions') {
  90                 $perms->addFlag('groupannu');
  91             }
  92             S::set('perms', $perms);
  93         }
  94         return true;
  95     }
  96
  97     protected function doAuth($level)
  98     {
  99         if (S::identified()) { // ok, c'est bon, on n'a rien à faire
 100             return User::getSilentWithValues(null, array('uid' => S::i('uid')));
 101         }
 102         if (!Get::has('auth')) {
 103             return null;
 104         }
 105         global $globals;
 106         if (md5('1' . S::v('challenge') . $globals->xnet->secret . Get::i('uid') . '1') != Get::v('auth')) {
 107             return null;
 108         }
 109         Get::kill('auth');
 110         S::set('auth', AUTH_MDP);
 111         return User::getSilentWithValues(null, array('uid' => Get::i('uid')));
 112     }
 113
 114     protected function startSessionAs($user, $level)
 115     {
 116         // The user must have 'groups' permission to access X.net
 117         if (!$user->checkPerms('groups')) {
 118             return false;
 119         }
 120         if ($level == AUTH_SUID) {
 121             S::set('auth', AUTH_MDP);
 122         }
 123
 124         S::set('uid', $user->uid);
 125         S::set('hruid', $user->hruid);
 126
 127         // XXX: Transition code, should not be in session anymore
 128         S::set('display_name', $user->display_name);
 129         S::set('full_name', $user->full_name);
 130         S::set('femme', $user->isFemale());
 131         S::set('email_format', $user->email_format);
 132         S::set('token', $user->token);
 133         S::set('perms', $user->perms);
 134         S::set('is_admin', $user->is_admin);
 135
 136
 137         $this->makePerms($user->perms, $user->is_admin);
 138         S::kill('challenge');
 139         S::kill('loginX');
 140         S::kill('may_update');
 141         S::kill('is_member');
 142         Get::kill('uid');
 143         Get::kill('PHPSESSID');
 144
 145         $args = array();
 146         foreach($_GET as $key => $val) {
 147             $args[] = urlencode($key). '=' .urlencode($val);
 148         }
 149         return true;
 150     }
 151
 152     public function doSelfSuid()
 153     {
 154         $user =& S::user();
 155         if (!$this->startSUID($user)) {
 156             return false;
 157         }
 158         S::set('perms', User::makePerms(PERMS_USER));
 159         return true;
 160     }
 161
 162     public function stopSUID()
 163     {
 164         $perms = S::suid('perms');
 165         if (!parent::stopSUID()) {
 166             return false;
 167         }
 168         S::kill('may_update');
 169         S::kill('is_member');
 170         S::set('perms', $perms);
 171         return true;
 172     }
 173 }
 174
 175 // {{{ function may_update
 176
 177 /** Return administration rights for the current asso
 178  * @param force Force administration rights to be read from database
 179  * @param lose  Force administration rights to be false
 180  */
 181 function may_update($force = false, $lose = false)
 182 {
 183     if (!isset($_SESSION['may_update'])) {
 184         $_SESSION['may_update'] = array();
 185     }
 186     $may_update =& $_SESSION['may_update'];
 187
 188     global $globals;
 189     $asso_id = $globals->asso('id');
 190     if (!$asso_id) {
 191         return false;
 192     } elseif ($lose) {
 193         $may_update[$asso_id] = false;
 194     } elseif (S::admin() || (S::suid() && $force)) {
 195         $may_update[$asso_id] = true;
 196     } elseif (!isset($may_update[$asso_id]) || $force) {
 197         $res = XDB::query("SELECT  perms
 198                              FROM  group_members
 199                             WHERE  uid={?} AND asso_id={?}",
 200                           S::v('uid'), $asso_id);
 201         $may_update[$asso_id] = ($res->fetchOneCell() == 'admin');
 202     }
 203     return $may_update[$asso_id];
 204 }
 205
 206 // }}}
 207 // {{{ function is_member
 208
 209 /** Get membership informations for the current asso
 210  * @param force Force membership to be read from database
 211  * @param lose  Force membership to be false
 212  */
 213 function is_member($force = false, $lose = false)
 214 {
 215     if (!isset($_SESSION['is_member'])) {
 216         $_SESSION['is_member'] = array();
 217     }
 218     $is_member =& $_SESSION['is_member'];
 219
 220     global $globals;
 221     $asso_id = $globals->asso('id');
 222     if (!$asso_id) {
 223         return false;
 224     } elseif ($lose) {
 225         $is_member[$asso_id] = false;
 226     } elseif (S::suid() && $force) {
 227         $is_member[$asso_id] = true;
 228     } elseif (!isset($is_member[$asso_id]) || $force) {
 229         $res = XDB::query("SELECT  COUNT(*)
 230                              FROM  group_members
 231                             WHERE  uid={?} AND asso_id={?}",
 232                 S::v('uid'), $asso_id);
 233         $is_member[$asso_id] = ($res->fetchOneCell() == 1);
 234     }
 235     return $is_member[$asso_id];
 236 }
 237
 238 // }}}
 239 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
 240 ?>