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0337d704 | 1 | <?php |
2 | /*************************************************************************** | |
12262f13 | 3 | * Copyright (C) 2003-2011 Polytechnique.org * |
0337d704 | 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 | ||
c0799142 | 22 | class XorgSession extends PlSession |
0337d704 | 23 | { |
45dd32db FB |
24 | const INVALID_USER = -2; |
25 | const NO_COOKIE = -1; | |
26 | const COOKIE_SUCCESS = 0; | |
27 | const INVALID_COOKIE = 1; | |
28 | ||
c0799142 FB |
29 | public function __construct() |
30 | { | |
31 | parent::__construct(); | |
abde67b1 FB |
32 | } |
33 | ||
c0799142 | 34 | public function startAvailableAuth() |
5480a216 | 35 | { |
c0799142 | 36 | if (!S::logged()) { |
45dd32db FB |
37 | switch ($this->tryCookie()) { |
38 | case self::COOKIE_SUCCESS: | |
39 | if (!$this->start(AUTH_COOKIE)) { | |
40 | return false; | |
41 | } | |
42 | break; | |
43 | ||
44 | case self::INVALID_USER: | |
45 | case self::INVALID_COOKIE: | |
c0799142 FB |
46 | return false; |
47 | } | |
5480a216 | 48 | } |
0be07aa6 | 49 | if ((check_ip('dangerous') && S::has('uid')) || check_account()) { |
9d214e8e | 50 | S::logger()->log("view_page", $_SERVER['REQUEST_URI']); |
0337d704 | 51 | } |
c0799142 | 52 | return true; |
0337d704 | 53 | } |
54 | ||
1bf36cd1 | 55 | /** Check the cookie and set the associated uid in the auth_by_cookie session variable. |
c0799142 FB |
56 | */ |
57 | private function tryCookie() | |
58 | { | |
59 | S::kill('auth_by_cookie'); | |
40565fa2 | 60 | if (Cookie::v('access') == '' || !Cookie::has('uid')) { |
45dd32db | 61 | return self::NO_COOKIE; |
c0799142 | 62 | } |
cab08090 | 63 | |
c67ba12a FB |
64 | $res = XDB::query('SELECT uid, password |
65 | FROM accounts | |
66 | WHERE uid = {?} AND state = \'active\'', | |
8cd3dccc | 67 | Cookie::i('uid')); |
c0799142 FB |
68 | if ($res->numRows() != 0) { |
69 | list($uid, $password) = $res->fetchOneRow(); | |
45dd32db | 70 | if (sha1($password) == Cookie::v('access')) { |
c0799142 | 71 | S::set('auth_by_cookie', $uid); |
45dd32db | 72 | return self::COOKIE_SUCCESS; |
c0799142 | 73 | } else { |
45dd32db | 74 | return self::INVALID_COOKIE; |
c0799142 FB |
75 | } |
76 | } | |
45dd32db | 77 | return self::INVALID_USER; |
c0799142 FB |
78 | } |
79 | ||
80 | private function checkPassword($uname, $login, $response, $login_type) | |
5480a216 | 81 | { |
675f3174 FB |
82 | if ($login_type == 'alias') { |
83 | $res = XDB::query('SELECT a.uid, a.password | |
84 | FROM accounts AS a | |
85 | INNER JOIN aliases AS l ON (l.uid = a.uid AND l.type != \'homonyme\') | |
86 | WHERE l.alias = {?} AND a.state = \'active\'', | |
87 | $login); | |
88 | } else { | |
89 | $res = XDB::query('SELECT uid, password | |
90 | FROM accounts | |
91 | WHERE ' . $login_type . ' = {?}', | |
92 | $login); | |
93 | } | |
c0799142 | 94 | if (list($uid, $password) = $res->fetchOneRow()) { |
c67ba12a | 95 | $expected_response = sha1("$uname:$password:" . S::v('challenge')); |
7a12b2ca | 96 | /* Deprecates len(password) > 10 conversion. */ |
c0799142 | 97 | if ($response != $expected_response) { |
86777849 FB |
98 | if (!S::logged()) { |
99 | Platal::page()->trigError('Mot de passe ou nom d\'utilisateur invalide'); | |
100 | } else { | |
101 | Platal::page()->trigError('Mot de passe invalide'); | |
102 | } | |
732e5855 | 103 | S::logger($uid)->log('auth_fail', 'bad password'); |
c0799142 FB |
104 | return null; |
105 | } | |
106 | return $uid; | |
107 | } | |
c6bad0e7 | 108 | Platal::page()->trigError('Mot de passe ou nom d\'utilisateur invalide'); |
c0799142 | 109 | return null; |
0337d704 | 110 | } |
cab08090 | 111 | |
0337d704 | 112 | |
c0799142 FB |
113 | /** Check auth. |
114 | */ | |
115 | protected function doAuth($level) | |
0337d704 | 116 | { |
e74411f7 | 117 | global $globals; |
c0799142 FB |
118 | |
119 | /* Cookie authentication | |
120 | */ | |
121 | if ($level == AUTH_COOKIE && !S::has('auth_by_cookie')) { | |
122 | $this->tryCookie(); | |
123 | } | |
124 | if ($level == AUTH_COOKIE && S::has('auth_by_cookie')) { | |
125 | if (!S::logged()) { | |
126 | S::set('auth', AUTH_COOKIE); | |
127 | } | |
19fdac5d | 128 | return User::getSilentWithUID(S::i('auth_by_cookie')); |
e74411f7 | 129 | } |
0337d704 | 130 | |
c0799142 FB |
131 | |
132 | /* We want to do auth... we must have infos from a form. | |
133 | */ | |
e64c8b61 | 134 | if (!Post::has('username') || !Post::has('response') || !S::has('challenge')) { |
c0799142 | 135 | return null; |
63528107 | 136 | } |
137 | ||
c0799142 FB |
138 | /** We come from an authentication form. |
139 | */ | |
0c02607e FB |
140 | if (S::suid()) { |
141 | $login = $uname = S::suid('uid'); | |
675f3174 | 142 | $loginType = 'uid'; |
e74411f7 | 143 | $redirect = false; |
144 | } else { | |
675f3174 FB |
145 | $uname = Post::v('username'); |
146 | if (Post::s('domain') == "alias") { | |
c0799142 FB |
147 | $res = XDB::query('SELECT redirect |
148 | FROM virtual | |
149 | INNER JOIN virtual_redirect USING(vid) | |
150 | WHERE alias LIKE {?}', | |
151 | $uname . '@' . $globals->mail->alias_dom); | |
e74411f7 | 152 | $redirect = $res->fetchOneCell(); |
153 | if ($redirect) { | |
154 | $login = substr($redirect, 0, strpos($redirect, '@')); | |
155 | } else { | |
c0799142 | 156 | $login = ''; |
e74411f7 | 157 | } |
675f3174 FB |
158 | $loginType = 'alias'; |
159 | } else if (Post::s('domain') == "ax") { | |
160 | $login = $uname; | |
161 | $redirect = false; | |
162 | $loginType = 'hruid'; | |
0337d704 | 163 | } else { |
e74411f7 | 164 | $login = $uname; |
165 | $redirect = false; | |
20edd399 | 166 | $loginType = is_numeric($uname) ? 'uid' : 'alias'; |
0337d704 | 167 | } |
63528107 | 168 | } |
cab08090 | 169 | |
675f3174 | 170 | $uid = $this->checkPassword($uname, $login, Post::v('response'), $loginType); |
0c02607e FB |
171 | if (!is_null($uid) && S::suid()) { |
172 | if (S::suid('uid') == $uid) { | |
888465dd FB |
173 | $uid = S::i('uid'); |
174 | } else { | |
175 | $uid = null; | |
176 | } | |
177 | } | |
c0799142 FB |
178 | if (!is_null($uid)) { |
179 | S::set('auth', AUTH_MDP); | |
0c02607e | 180 | if (!S::suid()) { |
888465dd | 181 | if (Post::has('domain')) { |
675f3174 FB |
182 | $domain = Post::v('domain', 'login'); |
183 | if ($domain == 'alias') { | |
40565fa2 | 184 | Cookie::set('domain', 'alias', 300); |
675f3174 FB |
185 | } else if ($domain == 'ax') { |
186 | Cookie::set('domain', 'ax', 300); | |
888465dd | 187 | } else { |
40565fa2 | 188 | Cookie::kill('domain'); |
888465dd | 189 | } |
e74411f7 | 190 | } |
191 | } | |
c0799142 | 192 | S::kill('challenge'); |
732e5855 | 193 | S::logger($uid)->log('auth_ok'); |
c0799142 | 194 | } |
19fdac5d | 195 | return User::getSilentWithUID($uid); |
c0799142 | 196 | } |
cab08090 | 197 | |
e2cb093d | 198 | protected function startSessionAs($user, $level) |
c0799142 | 199 | { |
b281eb7b | 200 | if ((!is_null(S::user()) && S::user()->id() != $user->id()) |
e2cb093d | 201 | || (S::has('uid') && S::i('uid') != $user->id())) { |
c0799142 FB |
202 | return false; |
203 | } else if (S::has('uid')) { | |
204 | return true; | |
205 | } | |
888465dd FB |
206 | if ($level == AUTH_SUID) { |
207 | S::set('auth', AUTH_MDP); | |
c0799142 | 208 | } |
70232020 | 209 | |
2ab3486b | 210 | // Loads uid and hruid into the session for developement conveniance. |
81b0f4ed | 211 | $_SESSION = array_merge($_SESSION, array('uid' => $user->id(), 'hruid' => $user->hruid, 'token' => $user->token, 'user' => $user)); |
6672b29b VZ |
212 | |
213 | // Starts the session's logger, and sets up the permanent cookie. | |
0c02607e FB |
214 | if (S::suid()) { |
215 | S::logger()->log("suid_start", S::v('hruid') . ' by ' . S::suid('hruid')); | |
c0799142 | 216 | } else { |
e2cb093d FB |
217 | S::logger()->saveLastSession(); |
218 | Cookie::set('uid', $user->id(), 300); | |
a90cde48 | 219 | |
e2cb093d FB |
220 | if (S::i('auth_by_cookie') == $user->id() || Post::v('remember', 'false') == 'true') { |
221 | $this->setAccessCookie(false, S::i('auth_by_cookie') != $user->id()); | |
c0799142 | 222 | } else { |
604dfd58 | 223 | $this->killAccessCookie(); |
0337d704 | 224 | } |
63528107 | 225 | } |
b0b937fd | 226 | |
6672b29b | 227 | // Finalizes the session setup. |
2ab3486b | 228 | $this->makePerms($user->perms, $user->is_admin); |
c0799142 FB |
229 | $this->securityChecks(); |
230 | $this->setSkin(); | |
ebfdf077 | 231 | $this->updateNbNotifs(); |
c0799142 | 232 | check_redirect(); |
d0621f88 FB |
233 | |
234 | // We should not have to use this private data anymore | |
235 | S::kill('auth_by_cookie'); | |
c0799142 | 236 | return true; |
0337d704 | 237 | } |
238 | ||
c0799142 | 239 | private function securityChecks() |
0337d704 | 240 | { |
c0799142 FB |
241 | $mail_subject = array(); |
242 | if (check_account()) { | |
243 | $mail_subject[] = 'Connexion d\'un utilisateur surveillé'; | |
0337d704 | 244 | } |
c0799142 FB |
245 | if (check_ip('unsafe')) { |
246 | $mail_subject[] = 'Une IP surveillee a tente de se connecter'; | |
247 | if (check_ip('ban')) { | |
248 | send_warning_mail(implode(' - ', $mail_subject)); | |
249 | $this->destroy(); | |
250 | Platal::page()->kill('Une erreur est survenue lors de la procédure d\'authentification. ' | |
251 | . 'Merci de contacter au plus vite ' | |
252 | . '<a href="mailto:support@polytechnique.org">support@polytechnique.org</a>'); | |
253 | return false; | |
254 | } | |
0337d704 | 255 | } |
c0799142 FB |
256 | if (count($mail_subject)) { |
257 | send_warning_mail(implode(' - ', $mail_subject)); | |
0337d704 | 258 | } |
259 | } | |
260 | ||
0d44ce42 FB |
261 | public function tokenAuth($login, $token) |
262 | { | |
1bf36cd1 | 263 | $res = XDB::query('SELECT a.uid, a.hruid |
c3e97f0c FB |
264 | FROM accounts AS a |
265 | WHERE a.token = {?} AND a.hruid = {?} AND a.state = \'active\'', | |
266 | $token, $login); | |
0d44ce42 | 267 | if ($res->numRows() == 1) { |
8c12f931 | 268 | return new User(null, $res->fetchOneAssoc()); |
0d44ce42 FB |
269 | } |
270 | return null; | |
271 | } | |
272 | ||
365ba8c3 | 273 | protected function makePerms($perm, $is_admin) |
bf517daf | 274 | { |
365ba8c3 | 275 | S::set('perms', User::makePerms($perm, $is_admin)); |
bf517daf | 276 | } |
277 | ||
c0799142 FB |
278 | public function setSkin() |
279 | { | |
0c02607e | 280 | if (S::logged() && (!S::has('skin') || S::suid())) { |
c67ba12a FB |
281 | $res = XDB::query('SELECT skin_tpl |
282 | FROM accounts AS a | |
283 | INNER JOIN skins AS s on (a.skin = s.id) | |
284 | WHERE a.uid = {?} AND skin_tpl != \'\'', S::i('uid')); | |
c0799142 | 285 | S::set('skin', $res->fetchOneCell()); |
5480a216 | 286 | } |
287 | } | |
0337d704 | 288 | |
faa06583 FB |
289 | public function loggedLevel() |
290 | { | |
291 | return AUTH_COOKIE; | |
292 | } | |
293 | ||
c0799142 FB |
294 | public function sureLevel() |
295 | { | |
296 | return AUTH_MDP; | |
0337d704 | 297 | } |
ebfdf077 FB |
298 | |
299 | ||
300 | public function updateNbNotifs() | |
301 | { | |
009b8ab7 FB |
302 | require_once 'notifs.inc.php'; |
303 | $user = S::user(); | |
069ddda8 | 304 | $n = Watch::getCount($user); |
009b8ab7 | 305 | S::set('notifs', $n); |
ebfdf077 | 306 | } |
604dfd58 FB |
307 | |
308 | public function setAccessCookie($replace = false, $log = true) { | |
0c02607e | 309 | if (S::suid() || ($replace && !Cookie::blank('access'))) { |
604dfd58 FB |
310 | return; |
311 | } | |
45dd32db | 312 | Cookie::set('access', sha1(S::user()->password()), 300, true); |
604dfd58 FB |
313 | if ($log) { |
314 | S::logger()->log('cookie_on'); | |
315 | } | |
316 | } | |
317 | ||
318 | public function killAccessCookie($log = true) { | |
319 | Cookie::kill('access'); | |
320 | if ($log) { | |
321 | S::logger()->log('cookie_off'); | |
322 | } | |
323 | } | |
324 | ||
325 | public function killLoginFormCookies() { | |
326 | Cookie::kill('uid'); | |
327 | Cookie::kill('domain'); | |
328 | } | |
0337d704 | 329 | } |
330 | ||
a7de4ef7 | 331 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: |
0337d704 | 332 | ?> |