diff options
Diffstat (limited to 'system/core/Security.php')
| -rwxr-xr-x | system/core/Security.php | 100 |
1 files changed, 52 insertions, 48 deletions
diff --git a/system/core/Security.php b/system/core/Security.php index 65746637b..c82b69ff9 100755 --- a/system/core/Security.php +++ b/system/core/Security.php @@ -41,14 +41,14 @@ class CI_Security { * * @var string */ - protected $_xss_hash = ''; + protected $_xss_hash = ''; /** * Random Hash for Cross Site Request Forgery Protection Cookie * * @var string */ - protected $_csrf_hash = ''; + protected $_csrf_hash = ''; /** * Expiration time for Cross Site Request Forgery Protection Cookie @@ -56,39 +56,39 @@ class CI_Security { * * @var int */ - protected $_csrf_expire = 7200; + protected $_csrf_expire = 7200; /** * Token name for Cross Site Request Forgery Protection Cookie * * @var string */ - protected $_csrf_token_name = 'ci_csrf_token'; + protected $_csrf_token_name = 'ci_csrf_token'; /** * Cookie name for Cross Site Request Forgery Protection Cookie * * @var string */ - protected $_csrf_cookie_name = 'ci_csrf_token'; + protected $_csrf_cookie_name = 'ci_csrf_token'; /** * List of never allowed strings * * @var array */ - protected $_never_allowed_str = array( - 'document.cookie' => '[removed]', - 'document.write' => '[removed]', - '.parentNode' => '[removed]', - '.innerHTML' => '[removed]', - 'window.location' => '[removed]', - '-moz-binding' => '[removed]', - '<!--' => '<!--', - '-->' => '-->', - '<![CDATA[' => '<![CDATA[', - '<comment>' => '<comment>' - ); + protected $_never_allowed_str = array( + 'document.cookie' => '[removed]', + 'document.write' => '[removed]', + '.parentNode' => '[removed]', + '.innerHTML' => '[removed]', + 'window.location' => '[removed]', + '-moz-binding' => '[removed]', + '<!--' => '<!--', + '-->' => '-->', + '<![CDATA[' => '<![CDATA[', + '<comment>' => '<comment>' + ); /** * List of never allowed regex replacement @@ -96,13 +96,16 @@ class CI_Security { * @var array */ protected $_never_allowed_regex = array( - 'javascript\s*:', - 'expression\s*(\(|&\#40;)', // CSS and IE - 'vbscript\s*:', // IE, surprise! - 'Redirect\s+302', - "([\"'])?data\s*:[^\\1]*?base64[^\\1]*?,[^\\1]*?\\1?" - ); - + 'javascript\s*:', + 'expression\s*(\(|&\#40;)', // CSS and IE + 'vbscript\s*:', // IE, surprise! + 'Redirect\s+302', + "([\"'])?data\s*:[^\\1]*?base64[^\\1]*?,[^\\1]*?\\1?" + ); + + /** + * Initialize security class + */ public function __construct() { // Is CSRF protection enabled? @@ -363,9 +366,10 @@ class CI_Security { * These words are compacted back to their correct state. */ $words = array( - 'javascript', 'expression', 'vbscript', 'script', 'base64', - 'applet', 'alert', 'document', 'write', 'cookie', 'window' - ); + 'javascript', 'expression', 'vbscript', 'script', 'base64', + 'applet', 'alert', 'document', 'write', 'cookie', 'window' + ); + foreach ($words as $word) { @@ -523,23 +527,23 @@ class CI_Security { public function sanitize_filename($str, $relative_path = FALSE) { $bad = array( - '../', '<!--', '-->', '<', '>', - "'", '"', '&', '$', '#', - '{', '}', '[', ']', '=', - ';', '?', '%20', '%22', - '%3c', // < - '%253c', // < - '%3e', // > - '%0e', // > - '%28', // ( - '%29', // ) - '%2528', // ( - '%26', // & - '%24', // $ - '%3f', // ? - '%3b', // ; - '%3d' // = - ); + '../', '<!--', '-->', '<', '>', + "'", '"', '&', '$', '#', + '{', '}', '[', ']', '=', + ';', '?', '%20', '%22', + '%3c', // < + '%253c', // < + '%3e', // > + '%0e', // > + '%28', // ( + '%29', // ) + '%2528', // ( + '%26', // & + '%24', // $ + '%3f', // ? + '%3b', // ; + '%3d' // = + ); if ( ! $relative_path) { @@ -559,8 +563,8 @@ class CI_Security { * Callback function for xss_clean() to remove whitespace from * things like j a v a s c r i p t * - * @param type - * @return type + * @param array + * @return string */ protected function _compact_exploded_words($matches) { @@ -569,8 +573,8 @@ class CI_Security { // -------------------------------------------------------------------- - /* - * Remove Evil HTML Attributes (like evenhandlers and style) + /** + * Remove Evil HTML Attributes (like event handlers and style) * * It removes the evil attribute and either: * - Everything up until a space |