<?php
/************************************************************************
- * MXChange v0.2.1 Start: 09/20/2005 *
- * =============== Last change: 09/20/2005 *
+ * Mailer v0.2.1-FINAL Start: 09/20/2005 *
+ * =================== Last change: 09/20/2005 *
* *
* -------------------------------------------------------------------- *
* File : security_functions.php *
* svn:keywords Date Revision" (autoprobset!) at least!!!!!! *
* -------------------------------------------------------------------- *
* Copyright (c) 2003 - 2009 by Roland Haeder *
+ * Copyright (c) 2009, 2010 by Mailer Developer Team *
* For more information visit: http://www.mxchange.org *
* *
* This program is free software; you can redistribute it and/or modify *
* MA 02110-1301 USA *
************************************************************************/
-// Run only once this security check/exchange
+// Run only once this security check/replacement
if (defined('__SECURITY')) return;
// Some security stuff...
-if (ereg(basename(__FILE__), $_SERVER['PHP_SELF'])) {
+if (strpos($_SERVER['PHP_SELF'], basename(__FILE__)) !== false) {
die();
} // END - if
* @param $strip Strip tags
* @return $str A (hopefully) secured string against XSS and other bad things
*/
-function secureString ($str, $strip=true) {
+function secureString ($str, $strip = true, $encode = false) {
// Shall we strip HTML code?
if ($strip === true) $str = strip_tags($str);
// Trim string
$str = trim($str);
- // Encode in entities
- $str = htmlentities($str, ENT_QUOTES);
+ // Encode in entities if requested
+ if ($encode === true) {
+ // Encode in entities (this breakes UTF-8!)
+ $str = htmlentities($str, ENT_QUOTES);
+ } // END - if
+
+ // Return result
return $str;
}
+/**
+ * Secures $_SERVER['PHP_SELF'] against attacks
+ *
+ * @return void
+ */
+function securePhpSelf () {
+ // Did it run before?
+ if (isset($GLOBALS['php_self_secured'])) {
+ // Please do not call this twice!
+ die('PHP_SELF is already secured. Please do not call ' . __FUNCTION__ . ' for your self.');
+ } // END - if
+
+ // Secure the string
+ $_SERVER['PHP_SELF'] = secureString($_SERVER['PHP_SELF']);
+
+ // Split it up into path and filename
+ $phpSelfDirectory = dirname($_SERVER['PHP_SELF']);
+ $phpSelfFile = basename($_SERVER['PHP_SELF']);
+
+ // Check for a .php inside the $phpSelfDirectory...
+ while (strpos($phpSelfDirectory, '.php') !== false) {
+ // Correct the dirname
+ $phpSelfDirectory = substr($phpSelfDirectory, 0, (strpos($phpSelfDirectory, '.php') + 4));
+ // Rewrite filename...
+ $phpSelfFile = basename($phpSelfDirectory);
+ // ... and dirname
+ $phpSelfDirectory = dirname($phpSelfDirectory);
+ } // END - while
+
+ // Put both together again and let's pray it is secured now...
+ $_SERVER['PHP_SELF'] = $phpSelfDirectory . '/' . $phpSelfFile;
+
+ // Did run...
+ $GLOBALS['php_self_secured'] = true;
+
+ // Remove uneccessary variables
+ unset($phpSelfDirectory);
+ unset($phpSelfFile);
+}
+
+/**
+ * Detects caching in PHP
+ *
+ * @return void
+ */
+function detectPhpCaching () {
+ // Activate caching or transparent compressing when it is not already done
+ 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
+ $GLOBALS['php_caching'] = 'on';
+ ob_start();
+ } else {
+ // Extension not loaded or required function is missing
+ $GLOBALS['php_caching'] = '404';
+ }
+ } else {
+ // Old PHP version
+ $GLOBALS['php_caching'] = 'old';
+ }
+}
+
// Runtime/GPC quoting is off now...
-set_magic_quotes_runtime(false);
+ini_set('magic_quotes_runtime', false);
ini_set('magic_quotes_gpc', false); // This may not work on some systems
// Check if important arrays are found and define them if missing
if (!isset($_SERVER)) {
global $_SERVER;
$_SERVER = $GLOBALS['_SERVER'];
-}
+} // END - if
if (!isset($_GET)) {
global $_GET;
$_GET = $GLOBALS['_GET'];
-}
+} // END - if
if (!isset($_POST)) {
global $_POST;
$_POST = $GLOBALS['_POST'];
-}
+} // END - if
// Include IP-Filter here
-//require("/usr/share/php/ipfilter.php");
+//include("/usr/share/php/ipfilter.php");
// Generate arrays which holds the relevante chars to replace
$GLOBALS['security_chars'] = array(
// The chars we are looking for...
- 'from' => array('{', '}', '/', '.', "'", "$", '(', ')', '{--', '--}', '{?', '?}', '%', ';', '[', ']', ':', '--'),
+ 'from' => array('{', '}', '/', '.', "'", '$', '(', ')', '{--', '--}', '{?', '?}', '%', ';', '[', ']', ':', '--'),
// ... and we will replace to.
'to' => array(
'{OPEN_ANCHOR2}',
} // END - foreach
} // END - if
-// Activate caching or transparent compressing when it is not already done
-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
- $GLOBALS['php_caching'] = 'on';
- ob_start();
- } else {
- // Extension not loaded or required function is missing
- $GLOBALS['php_caching'] = '404';
- }
-} else {
- // Old PHP version
- $GLOBALS['php_caching'] = 'old';
-}
+// Detect PHP caching
+detectPhpCaching();
// At last secure the $_SERVER['PHP_SELF'] element
-$_SERVER['PHP_SELF'] = secureString($_SERVER['PHP_SELF']);
-
-// Split it up into path and filename
-$phpSelfDirectory = dirname($_SERVER['PHP_SELF']);
-$phpSelfFile = basename($_SERVER['PHP_SELF']);
-
-// Check for a .php inside the $phpSelfDirectory...
-while (ereg('.php', $phpSelfDirectory)) {
- // Correct the dirname
- $phpSelfDirectory = substr($phpSelfDirectory, 0, (strpos($phpSelfDirectory, '.php') + 4));
- // Rewrite filename...
- $phpSelfFile = basename($phpSelfDirectory);
- // ... and dirname
- $phpSelfDirectory = dirname($phpSelfDirectory);
-} // END - while
-
-// Put both together again and let's pray it is secured now...
-$_SERVER['PHP_SELF'] = $phpSelfDirectory . '/' . $phpSelfFile;
-
-// Remove uneccessary variables
-unset($phpSelfDirectory);
-unset($phpSelfFile);
+securePhpSelf();
// Security system loaded...
-define('__SECURITY', '1');
+define('__SECURITY', 1);
// [EOF]
?>
projects / mailer.git / blobdiff