| New file |
|---|
| 0,0 → 1,126 |
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| <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); |
| /** |
| * CodeIgniter |
| * |
| * An open source application development framework for PHP 4.3.2 or newer |
| * |
| * @package CodeIgniter |
| * @author ExpressionEngine Dev Team |
| * @copyright Copyright (c) 2008, EllisLab, Inc. |
| * @license http://codeigniter.com/user_guide/license.html |
| * @link http://codeigniter.com |
| * @since Version 1.0 |
| * @filesource |
| */ |
| |
| // ------------------------------------------------------------------------ |
| |
| /** |
| * CodeIgniter Security Helpers |
| * |
| * @package CodeIgniter |
| * @subpackage Helpers |
| * @category Helpers |
| * @author ExpressionEngine Dev Team |
| * @link http://codeigniter.com/user_guide/helpers/security_helper.html |
| */ |
| |
| // ------------------------------------------------------------------------ |
| |
| /** |
| * XSS Filtering |
| * |
| * @access public |
| * @param string |
| * @param string the character set of your data |
| * @return string |
| */ |
| if ( ! function_exists('xss_clean')) |
| { |
| function xss_clean($str, $charset = 'ISO-8859-1') |
| { |
| $CI =& get_instance(); |
| return $CI->input->xss_clean($str, $charset); |
| } |
| } |
| |
| // -------------------------------------------------------------------- |
| |
| /** |
| * Hash encode a string |
| * |
| * @access public |
| * @param string |
| * @return string |
| */ |
| if ( ! function_exists('dohash')) |
| { |
| function dohash($str, $type = 'sha1') |
| { |
| if ($type == 'sha1') |
| { |
| if ( ! function_exists('sha1')) |
| { |
| if ( ! function_exists('mhash')) |
| { |
| require_once(BASEPATH.'libraries/Sha1'.EXT); |
| $SH = new CI_SHA; |
| return $SH->generate($str); |
| } |
| else |
| { |
| return bin2hex(mhash(MHASH_SHA1, $str)); |
| } |
| } |
| else |
| { |
| return sha1($str); |
| } |
| } |
| else |
| { |
| return md5($str); |
| } |
| } |
| } |
| |
| // ------------------------------------------------------------------------ |
| |
| /** |
| * Strip Image Tags |
| * |
| * @access public |
| * @param string |
| * @return string |
| */ |
| if ( ! function_exists('strip_image_tags')) |
| { |
| function strip_image_tags($str) |
| { |
| $str = preg_replace("#<img\s+.*?src\s*=\s*[\"'](.+?)[\"'].*?\>#", "\\1", $str); |
| $str = preg_replace("#<img\s+.*?src\s*=\s*(.+?).*?\>#", "\\1", $str); |
| |
| return $str; |
| } |
| } |
| |
| // ------------------------------------------------------------------------ |
| |
| /** |
| * Convert PHP tags to entities |
| * |
| * @access public |
| * @param string |
| * @return string |
| */ |
| if ( ! function_exists('encode_php_tags')) |
| { |
| function encode_php_tags($str) |
| { |
| return str_replace(array('<?php', '<?PHP', '<?', '?>'), array('<?php', '<?PHP', '<?', '?>'), $str); |
| } |
| } |
| |
| |
| /* End of file security_helper.php */ |
| /* Location: ./system/helpers/security_helper.php */ |