diff options
Diffstat (limited to 'system/core/Security.php')
| -rwxr-xr-x | system/core/Security.php | 23 |
1 files changed, 6 insertions, 17 deletions
diff --git a/system/core/Security.php b/system/core/Security.php index d7881d846..1007f61f4 100755 --- a/system/core/Security.php +++ b/system/core/Security.php @@ -153,20 +153,13 @@ class CI_Security { } // Do the tokens exist in both the _POST and _COOKIE arrays? - if ( ! isset($_POST[$this->_csrf_token_name]) OR - ! isset($_COOKIE[$this->_csrf_cookie_name])) + if ( ! isset($_POST[$this->_csrf_token_name]) OR ! isset($_COOKIE[$this->_csrf_cookie_name]) + OR $_POST[$this->_csrf_token_name] != $_COOKIE[$this->_csrf_cookie_name]) // Do the tokens match? { $this->csrf_show_error(); } - // Do the tokens match? - if ($_POST[$this->_csrf_token_name] != $_COOKIE[$this->_csrf_cookie_name]) - { - $this->csrf_show_error(); - } - - // We kill this since we're done and we don't want to - // polute the _POST array + // We kill this since we're done and we don't want to polute the _POST array unset($_POST[$this->_csrf_token_name]); // Regenerate on every submission? @@ -308,10 +301,9 @@ class CI_Security { * This permits our tests below to work reliably. * We only convert entities that are within tags since * these are the ones that will pose security problems. - * */ $str = preg_replace_callback("/[a-z]+=([\'\"]).*?\\1/si", array($this, '_convert_attribute'), $str); - $str = preg_replace_callback("/<\w+.*?(?=>|<|$)/si", array($this, '_decode_entity'), $str); + $str = preg_replace_callback('/<\w+.*?(?=>|<|$)/si', array($this, '_decode_entity'), $str); // Remove Invisible Characters Again! $str = remove_invisible_characters($str); @@ -326,9 +318,7 @@ class CI_Security { */ $str = str_replace("\t", ' ', $str); - /* - * Capture converted string for later comparison - */ + // Capture converted string for later comparison $converted_string = $str; // Remove Strings that are never allowed @@ -720,12 +710,11 @@ class CI_Security { protected function _filter_attributes($str) { $out = ''; - if (preg_match_all('#\s*[a-z\-]+\s*=\s*(\042|\047)([^\\1]*?)\\1#is', $str, $matches)) { foreach ($matches[0] as $match) { - $out .= preg_replace("#/\*.*?\*/#s", '', $match); + $out .= preg_replace('#/\*.*?\*/#s', '', $match); } } |