modules/auth.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2009 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 AuthModule extends PLModule
  23 {
  24     function handlers()
  25     {
  26         return array(
  27             'groupex/donne-chall.php'       => $this->make_hook('chall',              AUTH_PUBLIC),
  28             'groupex/export-econfiance.php' => $this->make_hook('econf',              AUTH_PUBLIC, 'user', NO_HTTPS),
  29
  30             'webservices/manageurs.php'     => $this->make_hook('manageurs',          AUTH_PUBLIC, 'user', NO_HTTPS),
  31
  32             'auth-redirect.php'             => $this->make_hook('redirect',           AUTH_COOKIE),
  33             'auth-groupex.php'              => $this->make_hook('groupex_old',        AUTH_COOKIE),
  34             'auth-groupex'                  => $this->make_hook('groupex',            AUTH_COOKIE),
  35             'admin/auth-groupes-x'          => $this->make_hook('admin_authgroupesx', AUTH_MDP,    'admin'),
  36         );
  37     }
  38
  39     function handler_chall(&$page)
  40     {
  41         $_SESSION["chall"] = uniqid(rand(), 1);
  42         echo $_SESSION["chall"] . "\n" . session_id();
  43         exit;
  44     }
  45
  46     function handler_econf(&$page)
  47     {
  48         global $globals;
  49
  50         $cle = $globals->core->econfiance;
  51
  52         if (S::v('chall') && $_GET['PASS'] == md5(S::v('chall').$cle)) {
  53
  54             $res  = XDB::query("SELECT password FROM auth_user_md5 WHERE user_id=10154");
  55             $pass = $res->fetchOneCell();
  56
  57             $list = new MMList(10154, $pass, "x-econfiance.polytechnique.org");
  58             $members = $list->get_members('membres');
  59             if (is_array($members)) {
  60                 $membres = Array();
  61                 foreach($members[1] as $member) {
  62                     if (preg_match('/^([^.]*.[^.]*.(\d\d\d\d))@polytechnique.org$/',
  63                                    $member[1], $matches))
  64                     {
  65                         $membres[] = "a.alias='{$matches[1]}'";
  66                     }
  67                 }
  68             }
  69
  70             $where = join(' OR ',$membres);
  71
  72             $all = XDB::iterRow(
  73                     "SELECT  u.prenom,u.nom,a.alias
  74                        FROM  auth_user_md5 AS u
  75                  INNER JOIN  aliases       AS a ON ( u.user_id = a.id AND a.type!='homonyme' )
  76                       WHERE  $where
  77                    ORDER BY  nom");
  78
  79             $res = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\n<membres>\n\n";
  80
  81             while (list ($prenom1,$nom1,$email1) = $all->next()) {
  82                     $res .= "<membre>\n";
  83                     $res .= "\t<nom>$nom1</nom>\n";
  84                     $res .= "\t<prenom>$prenom1</prenom>\n";
  85                     $res .= "\t<email>$email1</email>\n";
  86                     $res .= "</membre>\n\n";
  87             }
  88
  89             $res .= "</membres>\n\n";
  90
  91             header('Content-Type: text/xml; charset="UTF-8"');
  92             echo $res;
  93         }
  94         exit;
  95     }
  96
  97     function handler_manageurs(&$page)
  98     {
  99         global $globals;
 100
 101         require_once 'webservices/manageurs.server.inc.php';
 102
 103         $ips = array_flip(explode(' ', $globals->manageurs->authorized_ips));
 104         if ($ips && isset($ips[$_SERVER['REMOTE_ADDR']])) {
 105             $server = xmlrpc_server_create();
 106
 107             xmlrpc_server_register_method($server, 'get_annuaire_infos', 'get_annuaire_infos');
 108             xmlrpc_server_register_method($server, 'get_nouveau_infos', 'get_nouveau_infos');
 109
 110             $request  = @$GLOBALS['HTTP_RAW_POST_DATA'];
 111             $response = xmlrpc_server_call_method($server, $request, null);
 112             header('Content-Type: text/xml');
 113             print $response;
 114             xmlrpc_server_destroy($server);
 115         }
 116
 117         exit;
 118     }
 119
 120     function handler_redirect(&$page)
 121     {
 122         http_redirect(Env::v('dest', '/'));
 123     }
 124
 125     function handler_groupex_old(&$page)
 126     {
 127         return $this->handler_groupex($page, 'iso-8859-1');
 128     }
 129
 130     function handler_groupex(&$page, $charset = 'utf8')
 131     {
 132         $this->load('auth.inc.php');
 133         $page->assign('referer', true);
 134
 135         $gpex_pass = $_GET["pass"];
 136         $gpex_url  = urldecode($_GET["url"]);
 137         if (strpos($gpex_url, '?') === false) {
 138             $gpex_url .= "?PHPSESSID=" . $_GET["session"];
 139         } else {
 140             $gpex_url .= "&PHPSESSID=" . $_GET["session"];
 141         }
 142
 143         // Normalize the return URL.
 144         if (!preg_match("/^(http|https):\/\/.*/",$gpex_url)) {
 145             $gpex_url = "http://$gpex_url";
 146         }
 147         $gpex_challenge = $_GET["challenge"];
 148
 149         // Update the last login information (unless the user is in SUID).
 150         $uid = S::i('uid');
 151         if (!isset($_SESSION['suid'])) {
 152             global $platal;
 153             S::logger($uid)->log('connexion_auth_ext', $platal->path);
 154         }
 155
 156         // Iterate over the auth token to find which one did sign the request.
 157         $res = XDB::iterRow('SELECT privkey, name, datafields, returnurls FROM groupesx_auth');
 158         while (list($privkey,$name,$datafields,$returnurls) = $res->next()) {
 159             if (md5($gpex_challenge.$privkey) == $gpex_pass) {
 160                 $returnurls = trim($returnurls);
 161                 // We check that the return url matches a per-key regexp to prevent
 162                 // replay attacks (more exactly to force replay attacks to redirect
 163                 // the user to the real GroupeX website, which defeats the attack).
 164                 if (empty($returnurls) || @preg_match($returnurls, $gpex_url)) {
 165                     $returl = $gpex_url . gpex_make_params($gpex_challenge, $privkey, $datafields, $charset);
 166                     http_redirect($returl);
 167                 } else if (S::admin()) {
 168                     $page->kill("La requête d'authentification a échouée (url de retour invalide).");
 169                 }
 170             }
 171         }
 172
 173         // Otherwise (if no valid request was found, or if the return URL is not
 174         // acceptable), the user is redirected back to our homepage.
 175         pl_redirect('/');
 176     }
 177
 178     function handler_admin_authgroupesx(&$page, $action = 'list', $id = null)
 179     {
 180         $page->setTitle('Administration - Auth groupes X');
 181         $page->assign('title', 'Gestion de l\'authentification centralisée');
 182         $table_editor = new PLTableEditor('admin/auth-groupes-x','groupesx_auth','id');
 183         $table_editor->describe('name','nom',true);
 184         $table_editor->describe('privkey','clé privée',false);
 185         $table_editor->describe('datafields','champs renvoyés',true);
 186         $table_editor->describe('returnurls','urls de retour',true);
 187         $table_editor->apply($page, $action, $id);
 188     }
 189 }
 190
 191 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
 192 ?>