egroupware_official/phpgwapi/inc/class.auth_nis.inc.php

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<?php
/**
* eGroupWare API - Auth from NIS
*
* @link http://www.egroupware.org
* @author * by Dylan Adams <dadams@jhu.edu>
* Copyright (C) 2001 Dylan Adams
* @license http://opensource.org/licenses/lgpl-license.php LGPL - GNU Lesser General Public License
* @package api
* @subpackage authentication
* @version $Id$
*/
/**
* Auth from NIS
*/
class auth_nis implements auth_backend
{
/**
* 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')
{
$domain = yp_get_default_domain();
if(!empty($GLOBALS['egw_info']['server']['nis_domain']))
{
$domain = $GLOBALS['egw_info']['server']['nis_domain'];
}
$map = "passwd.byname";
if(!empty($GLOBALS['egw_info']['server']['nis_map']))
{
$map = $GLOBALS['egw_info']['server']['nis_map'];
}
$entry = yp_match( $domain, $map, $username );
/*
* we assume that the map is structured in the usual
* unix passwd flavor
*/
$entry_array = explode(':', $entry);
$stored_passwd = $entry_array[1];
$encrypted_passwd = crypt($passwd, $stored_passwd);
return($encrypted_passwd == $stored_passwd);
}
/**
* changes password
*
* @param string $old_passwd must be cleartext or empty to not to be checked
* @param string $new_passwd must be cleartext
* @param int $account_id=0 account id of user whose passwd should be changed
* @return boolean true if password successful changed, false otherwise
*/
function change_password($old_passwd, $new_passwd, $account_id=0)
{
// can't change passwords unless server runs as root (bad idea)
return( False );
}
}