X-Git-Url: https://git.mxchange.org/?p=mailer.git;a=blobdiff_plain;f=inc%2Flibs%2Fsecurity_functions.php;h=ba081bd00fe80d1cd1251977a691b76e3bf38ec8;hp=363bca731cd0feae1a4f11ed7a076d092c890b41;hb=1fdb0ddad0b3b7934e097af349145321c2b696b7;hpb=80e2def8ef2125fd4d7d1312ee3993ab613f0846 diff --git a/inc/libs/security_functions.php b/inc/libs/security_functions.php index 363bca731c..ba081bd00f 100644 --- a/inc/libs/security_functions.php +++ b/inc/libs/security_functions.php @@ -10,9 +10,14 @@ * -------------------------------------------------------------------- * * 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 * + * Copyright (c) 2003 - 2009 by Roland Haeder * * For more information visit: http://www.mxchange.org * * * * This program is free software; you can redistribute it and/or modify * @@ -31,34 +36,36 @@ * MA 02110-1301 USA * ************************************************************************/ +// Run only once this security check/exchange +if (defined('__SECURITY')) return; + // Some security stuff... if (ereg(basename(__FILE__), $_SERVER['PHP_SELF'])) { - $INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4) . "/security.php"; - require($INC); -} + die(); +} // END - if /** * Function to secure input strings * * @param $str The unsecured string + * @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 === true) $str = strip_tags($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/GPC quoting is off now... -@set_magic_quotes_runtime(false); -@ini_set('magic_quotes_gpc', false); // This may not work on some systems +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($_SERVER)) { @@ -76,37 +83,33 @@ if (!isset($_POST)) { $_POST = $GLOBALS['_POST']; } -if (!isset($_COOKIE)) { - global $_COOKIE; - $_COOKIE = $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}", - "{CLOSE_ANCHOR2}", - "{SLASH}", - "{DOT}", + '{OPEN_ANCHOR2}', + '{CLOSE_ANCHOR2}', + '{SLASH}', + '{DOT}', '{QUOT}', - "{DOLLAR}", - "{OPEN_ANCHOR}", - "{CLOSE_ANCHOR}", - "{OPEN_TEMPLATE}", - "{CLOSE_TEMPLATE}", - "{PER}", - "{SEMI}", - "{OPEN_INDEX}", - "{CLOSE_INDEX}", - "{DBL_DOT}", - "{COMMENT}" + '{DOLLAR}', + '{OPEN_ANCHOR}', + '{CLOSE_ANCHOR}', + '{OPEN_TEMPLATE}', + '{CLOSE_TEMPLATE}', + '{OPEN_CONFIG}', + '{CLOSE_CONFIG}', + '{PER}', + '{SEMI}', + '{OPEN_INDEX}', + '{CLOSE_INDEX}', + '{DBL_DOT}', + '{COMMENT}' ), ); @@ -114,11 +117,11 @@ $SEC_CHARS = array( // // Note: Do not replace 'to' with 'from' and vise-versa! When you do this all booked URLs will be // rejected because of the {SLASH}, {DOT} and all below listed items inside the URL. -$URL_CHARS = array( +$GLOBALS['url_chars'] = array( // Search for these secured characters - 'to' => array("{SLASH}", "{DOT}", "{PER}", "{DBL_DOT}", "{COMMENT}"), + 'to' => array('{SLASH}', '{DOT}', '{PER}', '{DBL_DOT}', '{COMMENT}'), // Replace with these characters - 'from' => array("/", ".", "%", ":", "--") + 'from' => array('/', '.', '%', ':', '--') ); // Overworked security part: @@ -129,93 +132,58 @@ if (is_array($_GET)) { unset($_GET[$seckey]); } else { // Only variables are allowed (non-array) but we secure them all! - foreach ($SEC_CHARS['from'] as $key => $char) { - // Pass all through - $_GET[$seckey] = str_replace($char , $SEC_CHARS['to'][$key], $_GET[$seckey]); - } - - // Strip all other out - $_GET[$seckey] = strip_tags($_GET[$seckey]); - } - } -} - -if (basename($_SERVER['PHP_SELF']) != "install.php") { - // And POST data - foreach ($_POST as $seckey => $secvalue) { - if (!is_array($secvalue)) { - // Only variables are allowed (non-array) to be secured... - foreach ($SEC_CHARS['from'] as $key => $char) { - // Pass all through - $_POST[$seckey] = str_replace($char , $SEC_CHARS['to'][$key], $_POST[$seckey]); - } - - // Strip all other out - $_POST[$seckey] = strip_tags($_POST[$seckey]); - } - } - - // ... and finally cookies - foreach ($_COOKIE as $seckey => $secvalue) { - if (is_array($secvalue)) { - // Throw arrays away... - unset($_COOKIE[$seckey]); - } 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 - $_COOKIE[$seckey] = str_replace($char , $SEC_CHARS['to'][$key], $_COOKIE[$seckey]); - } + $_GET[$seckey] = str_replace($char , $GLOBALS['security_chars']['to'][$key], $_GET[$seckey]); + } // END - foreach // Strip all other out - $_COOKIE[$seckey] = strip_tags($_COOKIE[$seckey]); + $_GET[$seckey] = secureString($_GET[$seckey]); } - } -} + } // END - foreach +} // END - if // 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'))) { - // Start caching - define('_OB_CACHING', "on"); - ob_start(); - } else { - // Extension not loaded or required function is missing - define('_OB_CACHING', "404"); - } +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 { - // Old PHP version - define('_OB_CACHING', "old"); + // Extension not loaded or required function is missing + $GLOBALS['php_caching'] = '404'; } +} else { + // Old PHP version + $GLOBALS['php_caching'] = 'old'; } // At last secure the $_SERVER['PHP_SELF'] element $_SERVER['PHP_SELF'] = secureString($_SERVER['PHP_SELF']); // Split it up into path and filename -$SELF_DIR = dirname($_SERVER['PHP_SELF']); -$SELF_FILE = basename($_SERVER['PHP_SELF']); +$phpSelfDirectory = dirname($_SERVER['PHP_SELF']); +$phpSelfFile = basename($_SERVER['PHP_SELF']); -// Check for a .php inside the $SELF_DIR... -while (ereg(".php", $SELF_DIR)) { +// Check for a .php inside the $phpSelfDirectory... +while (ereg('.php', $phpSelfDirectory)) { // Correct the dirname - $SELF_DIR = substr($SELF_DIR, 0, (strpos($SELF_DIR, ".php") + 4)); + $phpSelfDirectory = substr($phpSelfDirectory, 0, (strpos($phpSelfDirectory, '.php') + 4)); // Rewrite filename... - $SELF_FILE = basename($SELF_DIR); + $phpSelfFile = basename($phpSelfDirectory); // ... and dirname - $SELF_DIR = dirname($SELF_DIR); -} + $phpSelfDirectory = dirname($phpSelfDirectory); +} // END - while // Put both together again and let's pray it is secured now... -$_SERVER['PHP_SELF'] = $SELF_DIR."/".$SELF_FILE; +$_SERVER['PHP_SELF'] = $phpSelfDirectory . '/' . $phpSelfFile; // Remove uneccessary variables -unset($SELF_DIR); -unset($SELF_FILE); +unset($phpSelfDirectory); +unset($phpSelfFile); // Security system loaded... -define('__SECURITY', "1"); +define('__SECURITY', '1'); -// +// [EOF] ?>