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