egroupware_official/api/ntlm/index.php

103 lines
3.3 KiB
PHP
Raw Normal View History

<?php
/**
* EGroupware - NTLM or other http auth access without login page
*
* @link http://www.egroupware.org
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @subpackage authentication
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @copyright (c) 2008-2016 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @version $Id$
*/
use EGroupware\Api;
/**
* Check if given domain is either whitelisted, the current one or the EGroupware one
*
* Used to NOT redirect to arbitrary urls.
*
* @param string $url full url or just path, later is always allowed, as it stays within the domain
* @return boolean
*/
function check_domain($url)
{
$whitelisted = array(
$_SERVER['HTTP_HOST'], // can contain :port
// add additional domains-names (just full qualified hostnames) here
);
if ($GLOBALS['egw_info']['server']['webserver_url'][0] === 'h')
{
$whitelisted[] = parse_url($GLOBALS['egw_info']['server']['webserver_url'], PHP_URL_HOST);
}
$parts = parse_url($url);
$host = $parts['host'].($parts['port'] ? ':'.$parts['port'] : '');
return $url[0] == '/' || in_array($host, $whitelisted);
}
/**
* check if the given user has access
*
* Create a session or if the user has no account return authenticate header and 401 Unauthorized
*
* @param array &$account
* @return int session-id
*/
function check_access(&$account)
{
//error_log("AUTH_TYPE={$_SERVER['AUTH_TYPE']}, REMOTE_USER={$_SERVER['REMOTE_USER']}, HTTP_USER_AGENT={$_SERVER['HTTP_USER_AGENT']}, http_auth_types={$GLOBALS['egw_info']['server']['http_auth_types']}");
if (isset($_SERVER['REMOTE_USER']) && $_SERVER['REMOTE_USER'] && isset($_SERVER['AUTH_TYPE']) &&
isset($GLOBALS['egw_info']['server']['http_auth_types']) && $GLOBALS['egw_info']['server']['http_auth_types'] &&
in_array(strtoupper($_SERVER['AUTH_TYPE']),explode(',',strtoupper($GLOBALS['egw_info']['server']['http_auth_types']))))
{
if (strpos($account=$_SERVER['REMOTE_USER'],'\\') !== false)
{
list(,$account) = explode('\\',$account,2);
}
$sessionid = $GLOBALS['egw']->session->create($account,null,'ntlm',false,false); // false=no auth check
//error_log("create('$account',null,'ntlm',false,false)=$sessionid ({$GLOBALS['egw']->session->reason})");
}
if (!$sessionid)
{
if (isset($_GET['forward']) && check_domain($_GET['forward']))
{
header('Location: '.$_GET['forward']);
}
else
{
header('Location: ../../login.php'.(isset($_REQUEST['phpgw_forward']) ? '?phpgw_forward='.urlencode($_REQUEST['phpgw_forward']) : ''));
}
exit;
}
return $sessionid;
}
$GLOBALS['egw_info']['flags'] = array(
'noheader' => True,
'currentapp' => 'api',
'autocreate_session_callback' => 'check_access',
);
// if you move this file somewhere else, you need to adapt the path to the header!
include(dirname(__FILE__).'/../../header.inc.php');
if (isset($_GET['forward']) && check_domain($_GET['forward']))
{
$forward = $_GET['forward'];
Api\Cache::setSession('login', 'referer', $forward);
}
elseif ($_REQUEST['phpgw_forward'])
{
$forward = '../..'.(isset($_GET['phpgw_forward']) ? urldecode($_GET['phpgw_forward']) : @$_POST['phpgw_forward']);
}
else
{
$forward = '../../index.php';
}
// commiting the session, before redirecting might fix racecondition in session creation
$GLOBALS['egw']->session->commit_session();
header('Location: '.$forward);