classes/xnetsession.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2008 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         global $globals;
  38         if (!S::logged()) {
  39             // prevent connection to be linked to disconnection
  40             if (($i = strpos($_SERVER['REQUEST_URI'], 'exit')) !== false)
  41                 $returl = "http://{$_SERVER['SERVER_NAME']}".substr($_SERVER['REQUEST_URI'], 0, $i);
  42             else
  43                 $returl = "http://{$_SERVER['SERVER_NAME']}{$_SERVER['REQUEST_URI']}";
  44             $url  = "https://www.polytechnique.org/auth-groupex";
  45             $url .= "?session=" . session_id();
  46             $url .= "&challenge=" . S::v('challenge');
  47             $url .= "&pass=" . md5(S::v('challenge') . $globals->xnet->secret);
  48             $url .= "&url=".urlencode($returl);
  49             S::set('loginX', $url);
  50         }
  51
  52         if (S::logged() && $globals->asso()) {
  53             $perms = S::v('perms');
  54             $perms->rmFlag('groupadmin');
  55             $perms->rmFlag('groupmember');
  56             $perms->rmFlag('groupannu');
  57             if (may_update()) {
  58                 $perms->addFlag('groupadmin');
  59                 $perms->addFlag('groupmember');
  60                 $perms->addFlag('groupannu');
  61             }
  62             if (is_member()) {
  63                 $perms->addFlag('groupmember');
  64                 if ($globals->asso('pub') != 'private') {
  65                     $perms->addFlag('groupannu');
  66                 }
  67             }
  68             if ($globals->asso('cat') == 'Promotions') {
  69                 $perms->addFlag('groupannu');
  70             }
  71             S::set('perms', $perms);
  72         }
  73         return true;
  74     }
  75
  76     protected function doAuth($level)
  77     {
  78         if (S::identified()) { // ok, c'est bon, on n'a rien à faire
  79             return S::i('uid');
  80         }
  81         if (!Get::has('auth')) {
  82             return null;
  83         }
  84         global $globals;
  85         if (md5('1' . S::v('challenge') . $globals->xnet->secret . Get::i('uid') . '1') != Get::v('auth')) {
  86             return null;
  87         }
  88         Get::kill('auth');
  89         S::set('auth', AUTH_MDP);
  90         return Get::i('uid');
  91     }
  92
  93     protected function startSessionAs($user, $level)
  94     {
  95         if ($level == -1) {
  96             S::set('auth', AUTH_MDP);
  97         }
  98         $res  = XDB::query("SELECT  u.user_id AS uid, u.hruid, prenom, nom, perms, promo, password, FIND_IN_SET('femme', u.flags) AS femme,
  99                                     q.core_mail_fmt AS mail_fmt, q.core_rss_hash
 100                               FROM  auth_user_md5   AS u
 101                         INNER JOIN  auth_user_quick AS q  USING(user_id)
 102                              WHERE  u.user_id = {?} AND u.perms IN('admin', 'user')
 103                              LIMIT  1", $user);
 104         $sess = $res->fetchOneAssoc();
 105         $perms = $sess['perms'];
 106         unset($sess['perms']);
 107         $_SESSION = array_merge($_SESSION, $sess);
 108         S::set('perms', User::makePerms($perms));
 109         S::kill('challenge');
 110         S::kill('loginX');
 111         S::kill('may_update');
 112         S::kill('is_member');
 113         Get::kill('uid');
 114         Get::kill('PHPSESSID');
 115
 116         $args = array();
 117         foreach($_GET as $key => $val) {
 118             $args[] = urlencode($key). '=' .urlencode($val);
 119         }
 120         return true;
 121     }
 122
 123     public function doSelfSuid()
 124     {
 125         if (!$this->startSUID(S::i('uid'))) {
 126             return false;
 127         }
 128         S::set('perms', User::makePerms('user'));
 129         return true;
 130     }
 131
 132     public function stopSUID()
 133     {
 134         $perms = S::suid('perms');
 135         if (!parent::stopSUID()) {
 136             return false;
 137         }
 138         S::kill('may_update');
 139         S::kill('is_member');
 140         S::set('perms', $perms);
 141         return true;
 142     }
 143 }
 144
 145 // {{{ function may_update
 146
 147 /** Return administration rights for the current asso
 148  * @param force Force administration rights to be read from database
 149  * @param lose  Force administration rights to be false
 150  */
 151 function may_update($force = false, $lose = false)
 152 {
 153     if (!isset($_SESSION['may_update'])) {
 154         $_SESSION['may_update'] = array();
 155     }
 156     $may_update =& $_SESSION['may_update'];
 157
 158     global $globals;
 159     $asso_id = $globals->asso('id');
 160     if (!$asso_id) {
 161         return false;
 162     } elseif ($lose) {
 163         $may_update[$asso_id] = false;
 164     } elseif (S::admin() || (S::suid() && $force)) {
 165         $may_update[$asso_id] = true;
 166     } elseif (!isset($may_update[$asso_id]) || $force) {
 167         $res = XDB::query("SELECT  perms
 168                              FROM  groupex.membres
 169                             WHERE  uid={?} AND asso_id={?}",
 170                           S::v('uid'), $asso_id);
 171         $may_update[$asso_id] = ($res->fetchOneCell() == 'admin');
 172     }
 173     return $may_update[$asso_id];
 174 }
 175
 176 // }}}
 177 // {{{ function is_member
 178
 179 /** Get membership informations for the current asso
 180  * @param force Force membership to be read from database
 181  * @param lose  Force membership to be false
 182  */
 183 function is_member($force = false, $lose = false)
 184 {
 185     if (!isset($_SESSION['is_member'])) {
 186         $_SESSION['is_member'] = array();
 187     }
 188     $is_member =& $_SESSION['is_member'];
 189
 190     global $globals;
 191     $asso_id = $globals->asso('id');
 192     if (!$asso_id) {
 193         return false;
 194     } elseif ($lose) {
 195         $is_member[$asso_id] = false;
 196     } elseif (S::suid() && $force) {
 197         $is_member[$asso_id] = true;
 198     } elseif (!isset($is_member[$asso_id]) || $force) {
 199         $res = XDB::query("SELECT  COUNT(*)
 200                              FROM  groupex.membres
 201                             WHERE  uid={?} AND asso_id={?}",
 202                 S::v('uid'), $asso_id);
 203         $is_member[$asso_id] = ($res->fetchOneCell() == 1);
 204     }
 205     return $is_member[$asso_id];
 206 }
 207
 208 // }}}
 209 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
 210 ?>