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1 | <?php |
2 | /*************************************************************************** |
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3 | * Copyright (C) 2003-2007 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 | |
4869f665 |
22 | class XorgSession |
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23 | { |
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24 | // {{{ public static function init |
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25 | |
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26 | public static function init() { |
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27 | S::init(); |
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28 | if (!S::has('uid')) { |
29 | try_cookie(); |
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30 | } |
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31 | } |
32 | |
33 | // }}} |
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34 | // {{{ public static function destroy() |
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35 | |
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36 | public static function destroy() { |
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37 | S::destroy(); |
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38 | XorgSession::init(); |
39 | } |
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40 | |
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41 | // }}} |
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42 | // {{{ public static function doAuth() |
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43 | |
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44 | public static function doAuth($new_name = false) |
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45 | { |
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46 | global $globals; |
47 | if (S::identified()) { // ok, c'est bon, on n'a rien à faire |
48 | return true; |
49 | } |
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50 | |
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51 | if (!Env::has('username') || !Env::has('response') |
52 | || !S::has('challenge')) |
53 | { |
54 | return false; |
55 | } |
56 | |
57 | // si on vient de recevoir une identification par passwordpromptscreen.tpl |
58 | // ou passwordpromptscreenlogged.tpl |
e74411f7 |
59 | if (S::has('suid')) { |
60 | $suid = S::v('suid'); |
61 | $login = $uname = $suid['forlife']; |
62 | $redirect = false; |
63 | } else { |
64 | $uname = Env::v('username'); |
65 | |
66 | if (Env::v('domain') == "alias") { |
67 | $res = XDB::query( |
68 | "SELECT redirect |
69 | FROM virtual |
70 | INNER JOIN virtual_redirect USING(vid) |
71 | WHERE alias LIKE {?}", $uname."@".$globals->mail->alias_dom); |
72 | $redirect = $res->fetchOneCell(); |
73 | if ($redirect) { |
74 | $login = substr($redirect, 0, strpos($redirect, '@')); |
75 | } else { |
76 | $login = ""; |
77 | } |
0337d704 |
78 | } else { |
e74411f7 |
79 | $login = $uname; |
80 | $redirect = false; |
0337d704 |
81 | } |
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82 | } |
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83 | |
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84 | $field = (!$redirect && preg_match('/^\d*$/', $uname)) ? 'id' : 'alias'; |
85 | $res = XDB::query( |
86 | "SELECT u.user_id, u.password |
87 | FROM auth_user_md5 AS u |
88 | INNER JOIN aliases AS a ON ( a.id=u.user_id AND type!='homonyme' ) |
89 | WHERE a.$field = {?} AND u.perms IN('admin','user')", $login); |
90 | |
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91 | $logger = S::v('log'); |
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92 | if (list($uid, $password) = $res->fetchOneRow()) { |
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93 | require_once('secure_hash.inc.php'); |
94 | $expected_response = hash_encrypt("$uname:$password:".S::v('challenge')); |
95 | // le password de la base est peut-être encore encodé en md5 |
96 | if (Env::v('response') != $expected_response) { |
97 | $new_password = hash_xor(Env::v('xorpass'), $password); |
98 | $expected_response = hash_encrypt("$uname:$new_password:".S::v('challenge')); |
99 | if (Env::v('response') == $expected_response) { |
100 | XDB::execute("UPDATE auth_user_md5 SET password = {?} WHERE user_id = {?}", |
101 | $new_password, $uid); |
102 | } |
103 | } |
104 | if (Env::v('response') == $expected_response) { |
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105 | if (Env::has('domain')) { |
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106 | if (($domain = Env::v('domain', 'login')) == 'alias') { |
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107 | setcookie('ORGdomain', "alias", (time()+25920000), '/', '', 0); |
108 | } else { |
109 | setcookie('ORGdomain', '', (time()-3600), '/', '', 0); |
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110 | } |
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111 | // pour que la modification soit effective dans le reste de la page |
112 | $_COOKIE['ORGdomain'] = $domain; |
113 | } |
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114 | |
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115 | S::kill('challenge'); |
116 | if ($logger) { |
117 | $logger->log('auth_ok'); |
118 | } |
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119 | start_connexion($uid, true); |
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120 | if (Env::v('remember', 'false') == 'true') { |
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121 | $cookie = hash_encrypt(S::v('password')); |
122 | setcookie('ORGaccess',$cookie,(time()+25920000),'/','',0); |
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123 | if ($logger) { |
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124 | $logger->log("cookie_on"); |
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125 | } |
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126 | } else { |
127 | setcookie('ORGaccess', '', time() - 3600, '/', '', 0); |
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128 | |
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129 | if ($logger) { |
130 | $logger->log("cookie_off"); |
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131 | } |
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132 | } |
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133 | return true; |
134 | } elseif ($logger) { |
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135 | $logger->log('auth_fail','bad password'); |
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136 | } |
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137 | } elseif ($logger) { |
138 | $logger->log('auth_fail','bad login'); |
139 | } |
b0b937fd |
140 | |
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141 | return false; |
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142 | } |
143 | |
144 | // }}} |
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145 | // {{{ public static function doAuthCookie() |
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146 | |
147 | /** Try to do a cookie-based authentication. |
148 | * |
149 | * @param page the calling page (by reference) |
150 | */ |
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151 | public static function doAuthCookie() |
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152 | { |
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153 | if (S::logged()) { |
154 | return true; |
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155 | } |
156 | |
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157 | if (Env::has('username') and Env::has('response')) { |
158 | return XorgSession::doAuth(); |
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159 | } |
160 | |
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161 | if ($r = try_cookie()) { |
162 | return XorgSession::doAuth(($r > 0)); |
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163 | } |
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164 | |
165 | return false; |
0337d704 |
166 | } |
167 | |
168 | // }}} |
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169 | } |
170 | |
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171 | // {{{ function try_cookie() |
172 | |
173 | /** réalise la récupération de $_SESSION pour qqn avec cookie |
174 | * @return int 0 if all OK, -1 if no cookie, 1 if cookie with bad hash, |
175 | * -2 should not happen |
176 | */ |
177 | function try_cookie() |
178 | { |
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179 | if (Cookie::v('ORGaccess') == '' or !Cookie::has('ORGuid')) { |
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180 | return -1; |
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181 | } |
182 | |
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183 | $res = @XDB::query( |
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184 | "SELECT user_id,password FROM auth_user_md5 |
185 | WHERE user_id = {?} AND perms IN('admin','user')", |
186 | Cookie::i('ORGuid')); |
187 | |
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188 | if ($res->numRows() != 0) { |
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189 | list($uid, $password) = $res->fetchOneRow(); |
190 | require_once('secure_hash.inc.php'); |
191 | $expected_value = hash_encrypt($password); |
192 | if ($expected_value == Cookie::v('ORGaccess')) { |
193 | start_connexion($uid, false); |
194 | return 0; |
195 | } else { |
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196 | return 1; |
197 | } |
198 | } |
199 | |
200 | return -2; |
201 | } |
202 | |
203 | // }}} |
204 | // {{{ function start_connexion() |
205 | |
206 | /** place les variables de session dépendants de auth_user_md5 |
207 | * et met à jour les dates de dernière connexion si nécessaire |
208 | * @return void |
209 | * @see controlpermanent.inc.php controlauthentication.inc.php |
210 | */ |
211 | function start_connexion ($uid, $identified) |
212 | { |
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213 | $res = XDB::query(" |
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214 | SELECT u.user_id AS uid, prenom, nom, perms, promo, matricule, password, FIND_IN_SET('femme', u.flags) AS femme, |
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215 | UNIX_TIMESTAMP(s.start) AS lastlogin, s.host, a.alias AS forlife, a2.alias AS bestalias, |
216 | q.core_mail_fmt AS mail_fmt, UNIX_TIMESTAMP(q.banana_last) AS banana_last, q.watch_last, q.core_rss_hash |
217 | FROM auth_user_md5 AS u |
218 | INNER JOIN auth_user_quick AS q USING(user_id) |
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219 | INNER JOIN aliases AS a ON (u.user_id = a.id AND a.type='a_vie') |
220 | INNER JOIN aliases AS a2 ON (u.user_id = a2.id AND FIND_IN_SET('bestalias',a2.flags)) |
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221 | LEFT JOIN logger.sessions AS s ON (s.uid=u.user_id AND s.suid=0) |
222 | WHERE u.user_id = {?} AND u.perms IN('admin','user') |
223 | ORDER BY s.start DESC |
224 | LIMIT 1", $uid); |
225 | $sess = $res->fetchOneAssoc(); |
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226 | $suid = S::v('suid'); |
227 | |
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228 | if ($suid) { |
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229 | $logger = new CoreLogger($uid, $suid); |
230 | $logger->log("suid_start", S::v('forlife')." by {$suid['uid']}"); |
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231 | $sess['suid'] = $suid; |
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232 | $sess['perms'] = $_SESSION['perms']; |
0337d704 |
233 | } else { |
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234 | $logger = S::v('log', new CoreLogger($uid)); |
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235 | $logger->log("connexion", Env::v('n')); |
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236 | setcookie('ORGuid', $uid, (time()+25920000), '/', '', 0); |
237 | } |
238 | |
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239 | $_SESSION = array_merge($_SESSION, $sess); |
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240 | $_SESSION['log'] = $logger; |
241 | $_SESSION['auth'] = ($identified ? AUTH_MDP : AUTH_COOKIE); |
242 | set_skin(); |
243 | } |
244 | |
245 | // }}} |
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246 | |
247 | function set_skin() |
248 | { |
249 | global $globals; |
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250 | if (S::logged() && !S::has('skin')) { |
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251 | $uid = S::v('uid'); |
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252 | $res = XDB::query("SELECT skin_tpl |
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253 | FROM auth_user_quick AS a |
254 | INNER JOIN skins AS s ON a.skin = s.id |
255 | WHERE user_id = {?} AND skin_tpl != ''", $uid); |
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256 | if ($_SESSION['skin'] = $res->fetchOneCell()) { |
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257 | return; |
258 | } |
259 | } |
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260 | } |
261 | |
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262 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker: |
263 | ?> |