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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Security helper class.
*
* $Id: security.php 4679 2009-11-10 01:45:52Z isaiah $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2009 Kohana Team
* @license http://kohanaphp.com/license
*/
class security_Core {
/**
* Sanitize a string with the xss_clean method.
*
* @param string string to sanitize
* @param string xss_clean method to use ('htmlpurifier' or defaults to built-in method)
* @return string
*/
public static function xss_clean($str, $tool = NULL)
{
return Input::instance()->xss_clean($str, $tool);
}
/**
* Remove image tags from a string.
*
* @param string string to sanitize
* @return string
*/
public static function strip_image_tags($str)
{
return preg_replace('#<img\s.*?(?:src\s*=\s*["\']?([^"\'<>\s]*)["\']?[^>]*)?>#is', '$1', $str);
}
/**
* Remove PHP tags from a string.
*
* @param string string to sanitize
* @return string
*/
public static function encode_php_tags($str)
{
return str_replace(array('<?', '?>'), array('<?', '?>'), $str);
}
} // End security
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