mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-10-06 10:12:46 +02:00
239 lines
9.0 KiB
PHP
239 lines
9.0 KiB
PHP
<?php
|
|
/**
|
|
* eGroupWare API - ADS Authentication
|
|
*
|
|
* @link http://www.egroupware.org
|
|
* @author Ralf Becker <ralfbecker@outdoor-training.de> based on auth_ldap from:
|
|
* @author Lars Kneschke <lkneschke@linux-at-work.de>
|
|
* @author Joseph Engo <jengo@phpgroupware.org>
|
|
* Copyright (C) 2000, 2001 Joseph Engo
|
|
* Copyright (C) 2002, 2003 Lars Kneschke
|
|
* @license http://opensource.org/licenses/lgpl-license.php LGPL - GNU Lesser General Public License
|
|
* @package api
|
|
* @subpackage authentication
|
|
* @version $Id$
|
|
*/
|
|
|
|
/**
|
|
* Authentication agains a ADS Server
|
|
*/
|
|
class auth_ads implements auth_backend
|
|
{
|
|
var $previous_login = -1;
|
|
|
|
/**
|
|
* password authentication
|
|
*
|
|
* @param string $username username of account to authenticate
|
|
* @param string $passwd corresponding password
|
|
* @param string $passwd_type='text' 'text' for cleartext passwords (default)
|
|
* @return boolean true if successful authenticated, false otherwise
|
|
*/
|
|
function authenticate($username, $passwd, $passwd_type='text')
|
|
{
|
|
if (preg_match('/[()|&=*,<>!~]/',$username))
|
|
{
|
|
return False;
|
|
}
|
|
|
|
$adldap = accounts_ads::get_adldap();
|
|
// bind with username@ads_domain, only if a non-empty password given, in case anonymous search is enabled
|
|
if(empty($passwd) || !$adldap->authenticate($username, $passwd))
|
|
{
|
|
$authenticated = false;
|
|
// check if password need to be set on next login (AD will not authenticate user!)
|
|
if (!empty($passwd) && ($data = $adldap->user()->info($username, array('pwdlastset'))) &&
|
|
((string)$data[0]['pwdlastset'][0] === '0') &&
|
|
// reset pwdlastset, to we can check authentication
|
|
ldap_modify($adldap->getLdapConnection(), $data[0]['dn'], array('pwdlastset' => -1)))
|
|
{
|
|
$authenticated = $adldap->authenticate($username, $passwd);
|
|
// set pwdlastset=0 again
|
|
ldap_modify($adldap->getLdapConnection(), $data[0]['dn'], array('pwdlastset' => 0));
|
|
}
|
|
if (!$authenticated)
|
|
{
|
|
error_log(__METHOD__."('$username', ".(empty($passwd) ? "'') passwd empty" : '$passwd) adldap->authenticate() returned false')." --> returning false");
|
|
return False;
|
|
}
|
|
}
|
|
|
|
$attributes = array('samaccountname','givenName','sn','mail','homeDirectory');
|
|
if (($allValues = $adldap->user()->info($username, $attributes)))
|
|
{
|
|
$allValues[0]['objectsid'][0] = $adldap->utilities()->getTextSID($allValues[0]['objectsid'][0]);
|
|
}
|
|
//error_log(__METHOD__."('$username', \$passwd) allValues=".array2string($allValues));
|
|
|
|
if ($allValues && $allValues['count'] > 0)
|
|
{
|
|
if($GLOBALS['egw_info']['server']['case_sensitive_username'] == true)
|
|
{
|
|
if($allValues[0]['samaccountname'][0] != $username)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
if (($id = $GLOBALS['egw']->accounts->name2id($username,'account_lid','u')))
|
|
{
|
|
return $GLOBALS['egw']->accounts->id2name($id,'account_status') == 'A';
|
|
}
|
|
// store homedirectory for egw_session->read_repositories
|
|
$GLOBALS['auto_create_acct'] = array();
|
|
if (isset($allValues[0]['homedirectory']))
|
|
{
|
|
$GLOBALS['auto_create_acct']['homedirectory'] = $allValues[0]['homedirectory'][0];
|
|
}
|
|
if ($GLOBALS['egw_info']['server']['auto_create_acct'])
|
|
{
|
|
$GLOBALS['auto_create_acct']['account_id'] = accounts_ads::sid2account_id($allValues[0]['objectsid'][0]);
|
|
|
|
// create a global array with all availible info about that account
|
|
foreach(array(
|
|
'givenname' => 'firstname',
|
|
'sn' => 'lastname',
|
|
'mail' => 'email',
|
|
) as $ldap_name => $acct_name)
|
|
{
|
|
$GLOBALS['auto_create_acct'][$acct_name] =
|
|
translation::convert($allValues[0][$ldap_name][0],'utf-8');
|
|
}
|
|
//error_log(__METHOD__."() \$GLOBALS[auto_create_acct]=".array2string($GLOBALS['auto_create_acct']));
|
|
return True;
|
|
}
|
|
}
|
|
/* dn not found or password wrong */
|
|
return False;
|
|
}
|
|
|
|
/**
|
|
* Fetch the last pwd change for the user
|
|
*
|
|
* Required by EGroupware to force user to change password.
|
|
*
|
|
* @param string $username username of account to authenticate
|
|
* @return mixed false on error, 0 if user must change on next login, or timestamp of last change
|
|
*/
|
|
static function getLastPwdChange($username)
|
|
{
|
|
$ret = false;
|
|
if (($adldap = accounts_ads::get_adldap()) &&
|
|
($data = $adldap->user()->info($username, array('pwdlastset'))))
|
|
{
|
|
$ret = !$data[0]['pwdlastset'][0] ? 0 :
|
|
$adldap->utilities()->convertWindowsTimeToUnixTime($data[0]['pwdlastset'][0]);
|
|
}
|
|
//error_log(__METHOD__."('$username') returned ".array2string($ret));
|
|
return $ret;
|
|
}
|
|
|
|
/**
|
|
* changes account_lastpwd_change in ldap datababse
|
|
*
|
|
* Samba4 does not understand -1 for current time, but Win2008r2 only allows to set -1 (beside 0).
|
|
*
|
|
* @param int $account_id account id of user whose passwd should be changed
|
|
* @param string $passwd must be cleartext, usually not used, but may be used to authenticate as user to do the change -> ldap
|
|
* @param int $lastpwdchange must be a unixtimestamp or 0 (force user to change pw) or -1 for current time
|
|
* @param boolean $return_mod=false true return ldap modification instead of executing it
|
|
* @return boolean|array true if account_lastpwd_change successful changed, false otherwise or array if $return_mod
|
|
*/
|
|
static function setLastPwdChange($account_id=0, $passwd=NULL, $lastpwdchange=NULL, $return_mod=false)
|
|
{
|
|
if (!($adldap = accounts_ads::get_adldap())) return false;
|
|
|
|
if ($lastpwdchange)
|
|
{
|
|
// Samba4 can NOT set -1 for current time
|
|
$ldapServerInfo = ldapserverinfo::get($adldap->getLdapConnection(), $GLOBALS['egw_info']['server']['ads_host']);
|
|
if ($ldapServerInfo->serverType == SAMBA4_LDAPSERVER)
|
|
{
|
|
if ($lastpwdchange == -1) $lastpwdchange = time();
|
|
}
|
|
// while Windows only allows to set -1 for current time (or 0 to force user to change password)
|
|
else
|
|
{
|
|
$lastpwdchange = -1;
|
|
}
|
|
}
|
|
if ($lastpwdchange && $lastpwdchange != -1)
|
|
{
|
|
$lastpwdchange = accounts_ads::convertUnixTimeToWindowsTime($lastpwdchange);
|
|
}
|
|
$mod = array('pwdlastset' => $lastpwdchange);
|
|
if ($return_mod) return $mod;
|
|
|
|
$ret = false;
|
|
if ($account_id && ($username = accounts::id2name($account_id, 'account_lid')) &&
|
|
($data = $adldap->user()->info($username, array('pwdlastset'))))
|
|
{
|
|
$ret = ldap_modify($adldap->getLdapConnection(), $data[0]['dn'], $mod);
|
|
//error_log(__METHOD__."($account_id, $passwd, $lastpwdchange, $return_mod) ldap_modify(, '{$data[0]['dn']}', array('pwdlastset' => $lastpwdchange)) returned ".array2string($ret));
|
|
}
|
|
return $ret;
|
|
}
|
|
|
|
/**
|
|
* changes password
|
|
*
|
|
* @param string $old_passwd must be cleartext
|
|
* @param string $new_passwd must be cleartext
|
|
* @param int $account_id account id of user whose passwd should be changed
|
|
* @return boolean true if password successful changed, false otherwise
|
|
* @throws egw_exception_wrong_userinput
|
|
*/
|
|
function change_password($old_passwd, $new_passwd, $account_id=0)
|
|
{
|
|
if (!($adldap = accounts_ads::get_adldap()))
|
|
{
|
|
error_log(__METHOD__."(\$old_passwd, \$new_passwd, $account_id) accounts_ads::get_adldap() returned false");
|
|
return false;
|
|
}
|
|
|
|
if (!($adldap->getUseSSL() || $adldap->getUseTLS()))
|
|
{
|
|
throw new egw_exception(lang('Failed to change password.').' '.lang('Active directory requires SSL or TLS to change passwords!'));
|
|
}
|
|
|
|
if(!$account_id || $GLOBALS['egw_info']['flags']['currentapp'] == 'login')
|
|
{
|
|
$admin = false;
|
|
$username = $GLOBALS['egw_info']['user']['account_lid'];
|
|
$account_id = $GLOBALS['egw_info']['user']['account_id'];
|
|
}
|
|
else
|
|
{
|
|
$admin = true;
|
|
$username = $GLOBALS['egw']->accounts->id2name($account_id);
|
|
}
|
|
// Check the old_passwd to make sure this is legal
|
|
if(!$admin && !$this->authenticate($username, $old_passwd))
|
|
{
|
|
//error_log(__METHOD__."() old password '$old_passwd' for '$username' is wrong!");
|
|
return false;
|
|
}
|
|
try {
|
|
$ret = $adldap->user()->password($username, $new_passwd);
|
|
//error_log(__METHOD__."('$old_passwd', '$new_passwd', $account_id) admin=$admin adldap->user()->password('$username', '$new_passwd') returned ".array2string($ret));
|
|
return $ret;
|
|
}
|
|
catch (Exception $e) {
|
|
// as we cant detect what the problem is, we do a password strength check and throw it's message, if it fails
|
|
$error = auth::crackcheck($new_passwd,
|
|
// if admin has nothing configured use windows default of 3 char classes, 7 chars min and name-part-check
|
|
$GLOBALS['egw_info']['server']['force_pwd_strength'] ? $GLOBALS['egw_info']['server']['force_pwd_strength'] : 3,
|
|
$GLOBALS['egw_info']['server']['force_pwd_length'] ? $GLOBALS['egw_info']['server']['force_pwd_length'] : 7,
|
|
$GLOBALS['egw_info']['server']['passwd_forbid_name'] ? $GLOBALS['egw_info']['server']['passwd_forbid_name'] : true,
|
|
$account_id);
|
|
$msg = $e->getMessage();
|
|
$msg = strtr($msg, $tr=array( // translate possible adLDAP and LDAP error
|
|
'Error' => lang('Error'),
|
|
'Server is unwilling to perform.' => lang('Server is unwilling to perform.'),
|
|
'Your password might not match the password policy.' => lang('Your password might not match the password policy.'),
|
|
));
|
|
throw new egw_exception('<p><b>'.lang('Failed to change password.')."</b></p>\n".$msg.($error ? "\n<p>".$error."</p>\n" : ''));
|
|
}
|
|
return false;
|
|
}
|
|
}
|