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1 | <?php |
2 | /*************************************************************************** |
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3 | * Copyright (C) 2003-2006 Polytechnique.org * |
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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 | require_once('platal/session.inc.php'); |
23 | |
24 | // {{{ class XorgSession |
25 | |
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26 | class XnetSession |
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27 | { |
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28 | var $challenge; |
29 | |
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30 | // {{{ function XnetSession() |
31 | |
32 | function XnetSession() |
33 | { |
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34 | $this->challenge = md5(uniqid(rand(), 1)); |
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35 | } |
36 | |
37 | // }}} |
38 | // {{{ function init |
39 | |
40 | function init() { |
41 | global $globals; |
42 | |
43 | @session_start(); |
44 | if (!Session::has('session')) { |
45 | $_SESSION['session'] = new XnetSession; |
46 | } |
47 | if (!logged()) { |
48 | // prevent connexion to be linked to deconnexion |
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49 | if (($i = strpos($_SERVER['REQUEST_URI'], 'exit')) !== false) |
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50 | $returl = "http://{$_SERVER['SERVER_NAME']}".substr($_SERVER['REQUEST_URI'], 0, $i); |
51 | else |
52 | $returl = "http://{$_SERVER['SERVER_NAME']}{$_SERVER['REQUEST_URI']}"; |
53 | $url = "https://www.polytechnique.org/auth-groupex.php"; |
54 | $url .= "?session=" . session_id(); |
55 | $url .= "&challenge=" . $_SESSION['session']->challenge; |
56 | $url .= "&pass=" . md5($_SESSION['session']->challenge . $globals->xnet->secret); |
57 | $url .= "&url=".urlencode($returl); |
58 | $_SESSION['session']->loginX = $url; |
59 | } |
60 | } |
61 | |
62 | // }}} |
63 | // {{{ function destroy() |
64 | |
65 | function destroy() { |
66 | @session_destroy(); |
67 | unset($_SESSION); |
68 | XnetSession::init(); |
69 | } |
70 | |
71 | // }}} |
72 | // {{{ function doAuth() |
73 | |
74 | /** Try to do an authentication. |
75 | * |
76 | * @param page the calling page (by reference) |
77 | */ |
78 | function doAuth(&$page) |
79 | { |
80 | global $globals; |
81 | if (identified()) { // ok, c'est bon, on n'a rien à faire |
82 | return true; |
83 | } |
84 | |
85 | if (Get::has('auth')) { |
86 | return $this->doAuthX($page); |
87 | } elseif (Post::has('challenge') && Post::has('username') && Post::has('response')) { |
88 | return $this->doAuthOther($page); |
89 | } else { |
90 | $this->doLogin($page); |
91 | } |
92 | } |
93 | |
94 | // }}} |
95 | // {{{ doAuthX |
96 | |
97 | function doAuthX(&$page) { |
98 | global $globals; |
99 | |
100 | if (md5('1'.$this->challenge.$globals->xnet->secret.Get::getInt('uid').'1') != Get::get('auth')) { |
101 | $page->kill("Erreur d'authentification avec polytechnique.org !"); |
102 | } |
103 | |
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104 | $res = XDB::query(" |
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105 | SELECT u.user_id AS uid, prenom, nom, perms, promo, password, FIND_IN_SET('femme', u.flags) AS femme, |
106 | a.alias AS forlife, a2.alias AS bestalias, q.core_mail_fmt AS mail_fmt, q.core_rss_hash |
107 | FROM auth_user_md5 AS u |
108 | INNER JOIN auth_user_quick AS q USING(user_id) |
109 | INNER JOIN aliases AS a ON (u.user_id = a.id AND a.type='a_vie') |
110 | INNER JOIN aliases AS a2 ON (u.user_id = a2.id AND FIND_IN_SET('bestalias',a2.flags)) |
111 | WHERE u.user_id = {?} AND u.perms IN('admin','user') |
112 | LIMIT 1", Get::getInt('uid')); |
113 | $_SESSION = array_merge($_SESSION, $res->fetchOneAssoc()); |
114 | $_SESSION['auth'] = AUTH_MDP; |
115 | unset($this->challenge); |
116 | unset($this->loginX); |
117 | Get::kill('auth'); |
118 | Get::kill('uid'); |
119 | $args = array(); |
120 | foreach($_GET as $key=>$val) { |
121 | $args[] = urlencode($key).'='.urlencode($val); |
122 | } |
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123 | redirect($_SERVER['PHP_SELF'] . '?' . join('&', $args)); |
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124 | } |
125 | |
126 | // }}} |
127 | // {{{ doAuthOther |
128 | |
129 | function doAuthOther(&$page) { |
130 | if (Post::has('challenge') && Post::has('username') && Post::has('response')) { |
131 | $username = Post::get('username'); |
132 | } |
133 | $this->doLogin($page); |
134 | } |
135 | |
136 | // }}} |
137 | // {{{ doLogin |
138 | |
139 | function doLogin(&$page) { |
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140 | redirect($_SESSION['session']->loginX); |
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141 | } |
142 | |
143 | // }}} |
144 | } |
145 | |
146 | // }}} |
147 | // {{{ may_update |
148 | |
149 | function may_update() { |
150 | global $globals; |
151 | if (!$globals->asso('id')) { return false; } |
152 | if (has_perms()) { return true; } |
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153 | $res = XDB::query( |
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154 | "SELECT perms |
155 | FROM groupex.membres |
156 | WHERE uid={?} AND asso_id={?}", Session::getInt('uid'), $globals->asso('id')); |
157 | return $res->fetchOneCell() == 'admin'; |
158 | } |
159 | |
160 | // }}} |
161 | // {{{ is_member |
162 | |
163 | function is_member() { |
164 | global $globals; |
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165 | $asso_id = $globals->asso('id'); |
166 | if (!$asso_id) { return false; } |
167 | static $is_member; |
168 | if (!$is_member) $is_member = array(); |
169 | if (!isset($is_member[$asso_id])) |
170 | { |
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171 | $res = XDB::query( |
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172 | "SELECT COUNT(*) |
173 | FROM groupex.membres |
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174 | WHERE uid={?} AND asso_id={?}", |
175 | Session::getInt('uid'), $asso_id); |
176 | $is_member[$asso_id] = $res->fetchOneCell() == 1; |
177 | } |
178 | return $is_member[$asso_id]; |
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179 | } |
180 | |
181 | // }}} |
182 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker: |
183 | ?> |