<?php
/***************************************************************************
- * Copyright (C) 2003-2010 Polytechnique.org *
+ * Copyright (C) 2003-2014 Polytechnique.org *
* http://opensource.polytechnique.org/ *
* *
* This program is free software; you can redistribute it and/or modify *
return self::INVALID_USER;
}
- private function checkPassword($uname, $login, $response, $login_type)
+ const TEXT_INVALID_LOGIN = "Mot de passe ou nom d'utilisateur invalide";
+ const TEXT_INVALID_PASS = "Mot de passe invalide";
+
+ private function checkPassword($login, User $user, $response)
{
- if ($login_type == 'alias') {
- $res = XDB::query('SELECT a.uid, a.password
- FROM accounts AS a
- INNER JOIN aliases AS l ON (l.uid = a.uid AND l.type != \'homonyme\')
- WHERE l.alias = {?} AND a.state = \'active\'',
- $login);
+ if ($user === null) {
+ Platal::page()->trigError(self::TEXT_INVALID_LOGIN);
+ return false;
} else {
- $res = XDB::query('SELECT uid, password
- FROM accounts
- WHERE ' . $login_type . ' = {?}',
- $login);
- }
- if (list($uid, $password) = $res->fetchOneRow()) {
- $expected_response = sha1("$uname:$password:" . S::v('challenge'));
+ $password = $user->password();
+ $expected_response = sha1("$login:$password:" . S::v('challenge'));
/* Deprecates len(password) > 10 conversion. */
if ($response != $expected_response) {
if (!S::logged()) {
- Platal::page()->trigError('Mot de passe ou nom d\'utilisateur invalide');
+ Platal::page()->trigError(self::TEXT_INVALID_LOGIN);
} else {
- Platal::page()->trigError('Mot de passe invalide');
+ Platal::page()->trigError(self::TEXT_INVALID_PASS);
}
S::logger($uid)->log('auth_fail', 'bad password');
- return null;
+ return false;
}
- return $uid;
+ return true;
}
- Platal::page()->trigError('Mot de passe ou nom d\'utilisateur invalide');
- return null;
}
/** We come from an authentication form.
*/
if (S::suid()) {
- $login = $uname = S::suid('uid');
- $loginType = 'uid';
- $redirect = false;
+ $login = S::suid('uid');
} else {
- $uname = Post::v('username');
- if (Post::s('domain') == "alias") {
- $res = XDB::query('SELECT redirect
- FROM virtual
- INNER JOIN virtual_redirect USING(vid)
- WHERE alias LIKE {?}',
- $uname . '@' . $globals->mail->alias_dom);
- $redirect = $res->fetchOneCell();
- if ($redirect) {
- $login = substr($redirect, 0, strpos($redirect, '@'));
- } else {
- $login = '';
- }
- $loginType = 'alias';
- } else if (Post::s('domain') == "ax") {
- $login = $uname;
- $redirect = false;
- $loginType = 'hruid';
- } else {
- $login = $uname;
- $redirect = false;
- $loginType = 'alias';
- }
+ $login = Post::v('username');
}
- $uid = $this->checkPassword($uname, $login, Post::v('response'), $loginType);
- if (!is_null($uid) && S::suid()) {
- if (S::suid('uid') == $uid) {
- $uid = S::i('uid');
+ $user = User::getSilent($login);
+
+ if (is_null($user)) {
+ Platal::page()->trigError(self::TEXT_INVALID_LOGIN);
+ $success = false;
+ } else {
+ if (S::suid()) {
+ $success = (S::suid('uid') == $user->id());
} else {
- $uid = null;
+ $success = $this->checkPassword($login, $user, Post::v('response'));
}
}
- if (!is_null($uid)) {
- S::set('auth', AUTH_MDP);
- if (!S::suid()) {
- if (Post::has('domain')) {
- $domain = Post::v('domain', 'login');
- if ($domain == 'alias') {
- Cookie::set('domain', 'alias', 300);
- } else if ($domain == 'ax') {
- Cookie::set('domain', 'ax', 300);
- } else {
- Cookie::kill('domain');
- }
- }
- }
+
+ if ($success) {
+ S::set('auth', AUTH_PASSWD);
S::kill('challenge');
- S::logger($uid)->log('auth_ok');
+ S::logger($user->id())->log('auth_ok');
}
- return User::getSilentWithUID($uid);
+ return $user;
}
protected function startSessionAs($user, $level)
return true;
}
if ($level == AUTH_SUID) {
- S::set('auth', AUTH_MDP);
+ S::set('auth', AUTH_PASSWD);
}
// Loads uid and hruid into the session for developement conveniance.
- $_SESSION = array_merge($_SESSION, array('uid' => $user->id(), 'hruid' => $user->hruid));
+ $_SESSION = array_merge($_SESSION, array('uid' => $user->id(), 'hruid' => $user->hruid, 'token' => $user->token, 'user' => $user));
// Starts the session's logger, and sets up the permanent cookie.
if (S::suid()) {
$this->setAccessCookie(false, S::i('auth_by_cookie') != $user->id());
} else {
$this->killAccessCookie();
+
+ // If login for an external website and not activating cookie,
+ // mark that we want to disconnect once external auth checks
+ // have been performed.
+ if (Post::b('external_auth')) {
+ S::set('external_auth_exit', true);
+ }
}
}
$this->securityChecks();
$this->setSkin();
$this->updateNbNotifs();
- check_redirect();
+ // Only check email redirection for 'internal' users.
+ if ($user->checkPerms(PERMS_USER)) {
+ check_redirect();
+ }
// We should not have to use this private data anymore
S::kill('auth_by_cookie');
}
}
+ /**
+ * The authentication schema is based on three query parameters:
+ * ?user=<hruid>×tamp=<timestamp>&sig=<sig>
+ * where:
+ * - hruid is the hruid of the querying user
+ * - timestamp is the current UNIX timestamp, which has to be within a
+ * given distance of the server-side UNIX timestamp
+ * - sig is the HMAC of "<method>#<resource>#<payload>#<timestamp>" using
+ * a known secret of the user as the key.
+ *
+ * At the moment, the shared secret of the user is the sha1 hash of its
+ * password. This is temporary, though, until better support for tokens is
+ * implemented in plat/al.
+ * TODO(vzanotti): Switch to dedicated secrets for authentication.
+ */
+ public function apiAuth($method, $resource, $payload)
+ {
+ // Verify that the timestamp is within acceptable bounds.
+ $timestamp = Env::i('timestamp', 0);
+ if (abs($timestamp - time()) > Platal::globals()->api->timestamp_tolerance) {
+ return null;
+ }
+
+ // Retrieve the user corresponding to the forlife. Note that at the
+ // moment, other aliases are also accepted.
+ $user = User::getSilent(Env::s('user', ''));
+ if (is_null($user) || !$user->isActive()) {
+ return null;
+ }
+
+ // Determine the list of tokens associated with the user. At the moment,
+ // this is just the sha1 of the password.
+ $tokens = array($user->password());
+
+ // For each token, try to validate the signature.
+ $message = implode('#', array($method, $resource, $payload, $timestamp));
+ $signature = Env::s('sig');
+ foreach ($tokens as $token) {
+ $expected_signature = hash_hmac(
+ Platal::globals()->api->hmac_algo, $message, $token);
+ if ($signature == $expected_signature) {
+ return $user;
+ }
+ }
+
+ return null;
+ }
+
public function tokenAuth($login, $token)
{
$res = XDB::query('SELECT a.uid, a.hruid
- FROM aliases AS l
- INNER JOIN accounts AS a ON (l.uid = a.uid AND a.state = \'active\')
- WHERE a.token = {?} AND l.alias = {?} AND l.type != \'homonyme\'',
- $token, $login);
+ FROM accounts AS a
+ WHERE a.token = {?} AND a.hruid = {?} AND a.state = \'active\'',
+ $token, $login);
if ($res->numRows() == 1) {
return new User(null, $res->fetchOneAssoc());
}
public function sureLevel()
{
- return AUTH_MDP;
+ return AUTH_PASSWD;
}
}
}
-// vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
+// vim:set et sw=4 sts=4 sws=4 foldmethod=marker fenc=utf-8:
?>
projects / platal.git / blobdiff