egroupware/phpgwapi/inc/class.auth_ads.inc.php

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<?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 $Id$
*/
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/**
* 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, $passwd_type='text')
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{
if (preg_match('/[()|&=*,<>!~]/',$username))
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{
return False;
}
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if(!$ldap = @ldap_connect($GLOBALS['egw_info']['server']['ads_host']))
{
//echo "<p>Failed connecting to ADS server '".$GLOBALS['egw_info']['server']['ads_host']."' for authenication, execution stopped</p>\n";
$GLOBALS['egw']->log->message('F-Abort, Failed connecting to ADS server for authenication, execution stopped');
$GLOBALS['egw']->log->commit();
return False;
}
//echo "<p>Connected to LDAP server '".$GLOBALS['egw_info']['server']['ads_host']."' for authenication</p>\n";
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ldap_set_option($ldap, LDAP_OPT_PROTOCOL_VERSION, 3);
ldap_set_option($ldap, LDAP_OPT_REFERRALS, 0);
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// bind with username@ads_domain, only if a non-empty password given, in case anonymous search is enabled
if(empty($passwd) || !@ldap_bind($ldap,$username.'@'.$GLOBALS['egw_info']['server']['ads_domain'],$passwd))
{
//echo "<p>Cant bind with '$username@".$GLOBALS['egw_info']['server']['ads_domain']."' with PW '$passwd' !!!</p>\n";
return False;
}
//echo "<p>Bind with '$username@".$GLOBALS['egw_info']['server']['ads_domain']."' with PW '$passwd'.</p>\n";
$attributes = array('samaccountname','givenName','sn','mail','homeDirectory');
$filter = "(samaccountname=$username)";
// automatic create dn from domain: domain.com ==> DC=domain,DC=com
$base_dn = array();
foreach(explode('.',$GLOBALS['egw_info']['server']['ads_domain']) as $dc)
{
$base_dn[] = 'DC='.$dc;
}
$base_dn = implode(',',$base_dn);
//echo "<p>Trying ldap_search(,$base_dn,$filter,".print_r($attributes,true)."</p>\n";
$sri = ldap_search($ldap, $base_dn, $filter, $attributes);
$allValues = ldap_get_entries($ldap, $sri);
//_debug_array($allValues);
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if ($allValues['count'] > 0)
{
if($GLOBALS['egw_info']['server']['case_sensitive_username'] == true)
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{
if($allValues[0]['samaccountname'][0] != $username)
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{
return false;
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}
}
if (($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'])
{
// create a global array with all availible info about that account
foreach(array(
'givenname' => 'firstname',
'sn' => 'lastname',
'mail' => 'email',
) as $ldap_name => $acct_name)
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{
$GLOBALS['auto_create_acct'][$acct_name] =
translation::convert($allValues[0][$ldap_name][0],'utf-8');
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}
return True;
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}
}
/* dn not found or password wrong */
return False;
}
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function change_password($old_passwd, $new_passwd, $_account_id=0)
{
return false; // Cant change passwd in ADS
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}
}