| 1 | <?php |
| 2 | /*************************************************************************** |
| 3 | * Copyright (C) 2003-2007 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 Session |
| 23 | { |
| 24 | public static function init() |
| 25 | { |
| 26 | @session_start(); |
| 27 | if (empty($_SESSION['challenge'])) { |
| 28 | $_SESSION['challenge'] = sha1(uniqid(rand(), true)); |
| 29 | } |
| 30 | if (!isset($_SESSION['perms']) || !($_SESSION['perms'] instanceof FlagSet)) { |
| 31 | $_SESSION['perms'] = new FlagSet(); |
| 32 | } |
| 33 | } |
| 34 | |
| 35 | public static function destroy() |
| 36 | { |
| 37 | @session_destroy(); |
| 38 | unset($_SESSION); |
| 39 | } |
| 40 | |
| 41 | public static function has($key) |
| 42 | { |
| 43 | return isset($_SESSION[$key]); |
| 44 | } |
| 45 | |
| 46 | public static function kill($key) |
| 47 | { |
| 48 | unset($_SESSION[$key]); |
| 49 | } |
| 50 | |
| 51 | public static function v($key, $default = null) |
| 52 | { |
| 53 | return isset($_SESSION[$key]) ? $_SESSION[$key] : $default; |
| 54 | } |
| 55 | |
| 56 | public static function s($key, $default = '') |
| 57 | { |
| 58 | return (string)Session::v($key, $default); |
| 59 | } |
| 60 | |
| 61 | public static function i($key, $default = 0) |
| 62 | { |
| 63 | $i = Session::v($key, $default); |
| 64 | return is_numeric($i) ? intval($i) : $default; |
| 65 | } |
| 66 | |
| 67 | public static function l(array $keys) |
| 68 | { |
| 69 | return array_map(array('Session', 'v'), $keys); |
| 70 | } |
| 71 | |
| 72 | public static function has_perms() |
| 73 | { |
| 74 | return Session::logged() && Session::v('perms')->hasFlag(PERMS_ADMIN); |
| 75 | } |
| 76 | |
| 77 | public static function logged() |
| 78 | { |
| 79 | return Session::v('auth', AUTH_PUBLIC) >= AUTH_COOKIE; |
| 80 | } |
| 81 | |
| 82 | public static function identified() |
| 83 | { |
| 84 | return Session::v('auth', AUTH_PUBLIC) >= AUTH_MDP; |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | // {{{ function check_perms() |
| 89 | |
| 90 | /** verifie si un utilisateur a les droits pour voir une page |
| 91 | ** si ce n'est pas le cas, on affiche une erreur |
| 92 | * @return void |
| 93 | */ |
| 94 | function check_perms() |
| 95 | { |
| 96 | global $page; |
| 97 | if (!S::has_perms()) { |
| 98 | if ($_SESSION['log']) { |
| 99 | $_SESSION['log']->log("noperms",$_SERVER['PHP_SELF']); |
| 100 | } |
| 101 | $page->kill("Tu n'as pas les permissions nécessaires pour accéder à cette page."); |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | // }}} |
| 106 | |
| 107 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: |
| 108 | ?> |