* -------------------------------------------------------------------- *
* Kurzbeschreibung : Alle GET, POST und COOKIE-Daten sichern *
* -------------------------------------------------------------------- *
- * *
+ * $Revision:: $ *
+ * $Date:: $ *
+ * $Tag:: 0.2.1-FINAL $ *
+ * $Author:: $ *
+ * Needs to be in all Files and every File needs "svn propset *
+ * svn:keywords Date Revision" (autoprobset!) at least!!!!!! *
* -------------------------------------------------------------------- *
* Copyright (c) 2003 - 2008 by Roland Haeder *
* For more information visit: http://www.mxchange.org *
************************************************************************/
// Some security stuff...
-if (ereg(basename(__FILE__), $_SERVER['PHP_SELF']))
-{
+if (ereg(basename(__FILE__), $_SERVER['PHP_SELF'])) {
$INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4) . "/security.php";
require($INC);
}
* Function to secure input strings
*
* @param $str The unsecured string
- * @return $str A (hopefully) secured string against HTML and other things
+ * @param $strip Strip tags
+ * @return $str A (hopefully) secured string against XSS and other bad things
*/
-function secureString ($str) {
- $str = trim(strip_tags($str));
+function secureString ($str, $strip=true) {
+ // Shall we strip HTML code?
+ if ($strip) $str = strip_tags($str);
+
+ // Trim string
+ $str = trim($str);
+
+ // Encode in entities
$str = htmlentities($str, ENT_QUOTES);
return $str;
}
// Run only once this security check/exchange
if (defined('__SECURITY')) return;
-// Fatal messages goes here
-global $FATAL;
-$FATAL = array();
-
-// Runtime quoting is off now...
-set_magic_quotes_runtime(false);
-
-// Unregister all global variables because of vultures and surpress failed attemps
-@import_request_variables('');
-
-// Error reporting level
-@error_reporting(E_ALL | E_STRICT);
+// Runtime/GPC quoting is off now...
+@set_magic_quotes_runtime(false);
+@ini_set('magic_quotes_gpc', false); // This may not work on some systems
// Check if important arrays are found and define them if missing
-if (!isset($_SERVER))
-{
+if (!isset($_SERVER)) {
global $_SERVER;
$_SERVER = $GLOBALS['_SERVER'];
}
-if (!isset($_GET))
-{
+
+if (!isset($_GET)) {
global $_GET;
$_GET = $GLOBALS['_GET'];
}
-if (!isset($_POST))
-{
+
+if (!isset($_POST)) {
global $_POST;
$_POST = $GLOBALS['_POST'];
}
-if (!isset($_SESSION))
-{
- global $_SESSION;
- $_SESSION = $GLOBALS['_COOKIE'];
-}
// Include IP-Filter here
//require("/usr/share/php/ipfilter.php");
// Generate arrays which holds the relevante chars to replace
-global $SEC_CHARS, $URL_CHARS;
-$SEC_CHARS = array(
+$GLOBALS['security_chars'] = array(
// The chars we are looking for...
- 'from' => array("{", "}", "/", ".", "'", "$", "(", ")", "{--", "--}", "%", ";", "[", "]", ":", "--"),
+ 'from' => array("{", "}", "/", ".", "'", "$", "(", ")", '{--', '--}', "%", ";", "[", "]", ":", "--"),
// ... and we will replace to.
'to' => array(
"{OPEN_ANCHOR2}",
//
// Note: Do not replace 'to' with 'from' and vise-versa! When you do this all booked URLs will be
// rejected because of the {SLASH}, {DOT} and all below listed items inside the URL.
-$URL_CHARS = array(
+$GLOBALS['url_chars'] = array(
// Search for these secured characters
'to' => array("{SLASH}", "{DOT}", "{PER}", "{DBL_DOT}", "{COMMENT}"),
// Replace with these characters
// Overworked security part:
if (is_array($_GET)) {
- foreach ($_GET as $seckey=>$secvalue)
- {
- if (is_array($secvalue))
- {
+ foreach ($_GET as $seckey => $secvalue) {
+ if (is_array($secvalue)) {
// Throw arrays away...
unset($_GET[$seckey]);
- }
- else
- {
+ } else {
// Only variables are allowed (non-array) but we secure them all!
- foreach ($SEC_CHARS['from'] as $key=>$char)
- {
+ foreach ($GLOBALS['security_chars']['from'] as $key => $char) {
// Pass all through
- $_GET[$seckey] = str_replace($char , $SEC_CHARS['to'][$key], $_GET[$seckey]);
+ $_GET[$seckey] = str_replace($char , $GLOBALS['security_chars']['to'][$key], $_GET[$seckey]);
}
// Strip all other out
}
}
-if (basename($_SERVER['PHP_SELF']) != "install.php")
-{
+if (basename($_SERVER['PHP_SELF']) != "install.php") {
// And POST data
- foreach ($_POST as $seckey=>$secvalue)
- {
- if (!is_array($secvalue))
- {
+ foreach ($_POST as $seckey => $secvalue) {
+ if (!is_array($secvalue)) {
// Only variables are allowed (non-array) to be secured...
- foreach ($SEC_CHARS['from'] as $key=>$char)
- {
+ foreach ($GLOBALS['security_chars']['from'] as $key => $char) {
// Pass all through
- $_POST[$seckey] = str_replace($char , $SEC_CHARS['to'][$key], $_POST[$seckey]);
+ $_POST[$seckey] = str_replace($char , $GLOBALS['security_chars']['to'][$key], $_POST[$seckey]);
}
// Strip all other out
$_POST[$seckey] = strip_tags($_POST[$seckey]);
}
}
-
- // ... and finally cookies
- foreach ($_SESSION as $seckey=>$secvalue)
- {
- if (is_array($secvalue))
- {
- // Throw arrays away...
- unset($_SESSION[$seckey]);
- }
- else
- {
- // Only variables are allowed (non-array) but we secure them all!
- foreach ($SEC_CHARS['from'] as $key=>$char)
- {
- // Pass all through
- $_SESSION[$seckey] = str_replace($char , $SEC_CHARS['to'][$key], $_SESSION[$seckey]);
- }
-
- // Strip all other out
- $_SESSION[$seckey] = strip_tags($_SESSION[$seckey]);
- }
- }
}
// Activate caching or transparent compressing when it is not already done
-if (!defined('_OB_CACHING'))
-{
- if (phpversion() >= '4.0.4pl1' && (strstr(getenv('HTTP_USER_AGENT'),'compatible') || (strstr(getenv('HTTP_USER_AGENT'), "Mozilla"))))
- {
- if ((extension_loaded('zlib')) && (function_exists('ob_start')))
- {
+if (!defined('_OB_CACHING')) {
+ if (phpversion() >= '4.0.4pl1' && (strstr(getenv('HTTP_USER_AGENT'),'compatible') || (strstr(getenv('HTTP_USER_AGENT'), "Mozilla")))) {
+ if ((extension_loaded('zlib')) && (function_exists('ob_start'))) {
// Start caching
define('_OB_CACHING', "on");
ob_start();
- }
- else
- {
+ } else {
// Extension not loaded or required function is missing
define('_OB_CACHING', "404");
}
- }
- else
- {
+ } else {
// Old PHP version
define('_OB_CACHING', "old");
}
$SELF_FILE = basename($_SERVER['PHP_SELF']);
// Check for a .php inside the $SELF_DIR...
-while (ereg(".php", $SELF_DIR))
-{
+while (ereg(".php", $SELF_DIR)) {
// Correct the dirname
$SELF_DIR = substr($SELF_DIR, 0, (strpos($SELF_DIR, ".php") + 4));
// Rewrite filename...