[289] | 1 | <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); |
---|
| 2 | /** |
---|
| 3 | * CodeIgniter |
---|
| 4 | * |
---|
| 5 | * An open source application development framework for PHP 5.1.6 or newer |
---|
| 6 | * |
---|
| 7 | * @package CodeIgniter |
---|
| 8 | * @author ExpressionEngine Dev Team |
---|
| 9 | * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. |
---|
| 10 | * @license http://codeigniter.com/user_guide/license.html |
---|
| 11 | * @link http://codeigniter.com |
---|
| 12 | * @since Version 1.0 |
---|
| 13 | * @filesource |
---|
| 14 | */ |
---|
| 15 | |
---|
| 16 | // ------------------------------------------------------------------------ |
---|
| 17 | |
---|
| 18 | /** |
---|
| 19 | * CodeIgniter Security Helpers |
---|
| 20 | * |
---|
| 21 | * @package CodeIgniter |
---|
| 22 | * @subpackage Helpers |
---|
| 23 | * @category Helpers |
---|
| 24 | * @author ExpressionEngine Dev Team |
---|
| 25 | * @link http://codeigniter.com/user_guide/helpers/security_helper.html |
---|
| 26 | */ |
---|
| 27 | |
---|
| 28 | // ------------------------------------------------------------------------ |
---|
| 29 | |
---|
| 30 | /** |
---|
| 31 | * XSS Filtering |
---|
| 32 | * |
---|
| 33 | * @access public |
---|
| 34 | * @param string |
---|
| 35 | * @param bool whether or not the content is an image file |
---|
| 36 | * @return string |
---|
| 37 | */ |
---|
| 38 | if ( ! function_exists('xss_clean')) |
---|
| 39 | { |
---|
| 40 | function xss_clean($str, $is_image = FALSE) |
---|
| 41 | { |
---|
| 42 | $CI =& get_instance(); |
---|
| 43 | return $CI->security->xss_clean($str, $is_image); |
---|
| 44 | } |
---|
| 45 | } |
---|
| 46 | |
---|
| 47 | // ------------------------------------------------------------------------ |
---|
| 48 | |
---|
| 49 | /** |
---|
| 50 | * Sanitize Filename |
---|
| 51 | * |
---|
| 52 | * @access public |
---|
| 53 | * @param string |
---|
| 54 | * @return string |
---|
| 55 | */ |
---|
| 56 | if ( ! function_exists('sanitize_filename')) |
---|
| 57 | { |
---|
| 58 | function sanitize_filename($filename) |
---|
| 59 | { |
---|
| 60 | $CI =& get_instance(); |
---|
| 61 | return $CI->security->sanitize_filename($filename); |
---|
| 62 | } |
---|
| 63 | } |
---|
| 64 | |
---|
| 65 | // -------------------------------------------------------------------- |
---|
| 66 | |
---|
| 67 | /** |
---|
| 68 | * Hash encode a string |
---|
| 69 | * |
---|
| 70 | * @access public |
---|
| 71 | * @param string |
---|
| 72 | * @return string |
---|
| 73 | */ |
---|
| 74 | if ( ! function_exists('do_hash')) |
---|
| 75 | { |
---|
| 76 | function do_hash($str, $type = 'sha1') |
---|
| 77 | { |
---|
| 78 | if ($type == 'sha1') |
---|
| 79 | { |
---|
| 80 | return sha1($str); |
---|
| 81 | } |
---|
| 82 | else |
---|
| 83 | { |
---|
| 84 | return md5($str); |
---|
| 85 | } |
---|
| 86 | } |
---|
| 87 | } |
---|
| 88 | |
---|
| 89 | // ------------------------------------------------------------------------ |
---|
| 90 | |
---|
| 91 | /** |
---|
| 92 | * Strip Image Tags |
---|
| 93 | * |
---|
| 94 | * @access public |
---|
| 95 | * @param string |
---|
| 96 | * @return string |
---|
| 97 | */ |
---|
| 98 | if ( ! function_exists('strip_image_tags')) |
---|
| 99 | { |
---|
| 100 | function strip_image_tags($str) |
---|
| 101 | { |
---|
| 102 | $str = preg_replace("#<img\s+.*?src\s*=\s*[\"'](.+?)[\"'].*?\>#", "\\1", $str); |
---|
| 103 | $str = preg_replace("#<img\s+.*?src\s*=\s*(.+?).*?\>#", "\\1", $str); |
---|
| 104 | |
---|
| 105 | return $str; |
---|
| 106 | } |
---|
| 107 | } |
---|
| 108 | |
---|
| 109 | // ------------------------------------------------------------------------ |
---|
| 110 | |
---|
| 111 | /** |
---|
| 112 | * Convert PHP tags to entities |
---|
| 113 | * |
---|
| 114 | * @access public |
---|
| 115 | * @param string |
---|
| 116 | * @return string |
---|
| 117 | */ |
---|
| 118 | if ( ! function_exists('encode_php_tags')) |
---|
| 119 | { |
---|
| 120 | function encode_php_tags($str) |
---|
| 121 | { |
---|
| 122 | return str_replace(array('<?php', '<?PHP', '<?', '?>'), array('<?php', '<?PHP', '<?', '?>'), $str); |
---|
| 123 | } |
---|
| 124 | } |
---|
| 125 | |
---|
| 126 | |
---|
| 127 | /* End of file security_helper.php */ |
---|
| 128 | /* Location: ./system/helpers/security_helper.php */ |
---|