forked from extern/egroupware
51 lines
1.5 KiB
PHP
51 lines
1.5 KiB
PHP
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<?php
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/**
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* EGroupware API: HTTP_REFERER header handling
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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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* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
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* @copyright 2001-2016 by RalfBecker@outdoor-training.de
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* @package api
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* @subpackage header
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* @version $Id$
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*/
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namespace EGroupware\Api\Header;
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/**
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* Handling of HTTP_REFERER header
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*/
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class Referer
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{
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/**
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* gets an eGW conformant referer from $_SERVER['HTTP_REFERER'], suitable for direct use in the link function
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*
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* @param string $default ='' default to use if referer is not set by webserver or not determinable
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* @param string $referer ='' referer string to use, default ('') use $_SERVER['HTTP_REFERER']
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* @return string
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* @todo get "real" referer for jDots template
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*/
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static function get($default='',$referer='')
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{
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// HTTP_REFERER seems NOT to get urldecoded
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if (!$referer) $referer = urldecode($_SERVER['HTTP_REFERER']);
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$webserver_url = $GLOBALS['egw_info']['server']['webserver_url'];
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if (empty($webserver_url) || $webserver_url{0} == '/') // url is just a path
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{
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$referer = preg_replace('/^https?:\/\/[^\/]+/','',$referer); // removing the domain part
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}
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if (strlen($webserver_url) > 1)
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{
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list(,$referer) = explode($webserver_url,$referer,2);
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}
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$ret = str_replace('/etemplate/process_exec.php', '/index.php', $referer);
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if (empty($ret) || strpos($ret, 'cd=yes') !== false) $ret = $default;
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return $ret;
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}
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}
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UserAgent::_init_static();
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