X-Git-Url: https://git.mxchange.org/?p=mailer.git;a=blobdiff_plain;f=inc%2Flibs%2Fsecurity_functions.php;h=7309965b5b7b80cd4675122411d3b927afa36333;hp=fa1679ab02bff27f40217711a067204871905276;hb=e995a896255f853ea731a602a6f4902878f16980;hpb=5071030af40e69ca4284642f44758964e18f5be8 diff --git a/inc/libs/security_functions.php b/inc/libs/security_functions.php index fa1679ab02..7309965b5b 100644 --- a/inc/libs/security_functions.php +++ b/inc/libs/security_functions.php @@ -1,7 +1,7 @@ = '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 + $GLOBALS['php_caching'] = 'old'; + } +} // Runtime/GPC quoting is off now... -@set_magic_quotes_runtime(false); -@ini_set('magic_quotes_gpc', false); // This may not work on some systems +set_magic_quotes_runtime(false); +ini_set('magic_quotes_gpc', false); // This may not work on some systems // Check if important arrays are found and define them if missing if (!isset($_SERVER)) { 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 $GLOBALS['security_chars'] = array( -// The chars we are looking for... - 'from' => array("{", "}", '/', '.', "'", "$", '(', ')', '{--', '--}', "%", ';', "[", "]", ':', "--"), -// ... and we will replace to. + // The chars we are looking for... + 'from' => array('{', '}', '/', '.', "'", '$', '(', ')', '{--', '--}', '{?', '?}', '%', ';', '[', ']', ':', '--'), + // ... and we will replace to. 'to' => array( - "{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}" - ), - ); - - // Characters allowed in URLs - // - // 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. - $GLOBALS['url_chars'] = array( - // Search for these secured characters - 'to' => array("{SLASH}", "{DOT}", "{PER}", "{DBL_DOT}", "{COMMENT}"), - // Replace with these characters - 'from' => array('/', '.', "%", ':', "--") - ); - - // Overworked security part: - if (is_array($_GET)) { - foreach ($_GET as $seckey => $secvalue) { - if (is_array($secvalue)) { - // Throw arrays away... - unset($_GET[$seckey]); - } else { - // Only variables are allowed (non-array) but we secure them all! - foreach ($GLOBALS['security_chars']['from'] as $key => $char) { - // Pass all through - $_GET[$seckey] = str_replace($char , $GLOBALS['security_chars']['to'][$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 ($GLOBALS['security_chars']['from'] as $key => $char) { - // Pass all through - $_POST[$seckey] = str_replace($char , $GLOBALS['security_chars']['to'][$key], $_POST[$seckey]); - } - - // Strip all other out - $_POST[$seckey] = strip_tags($_POST[$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'))) { - // Start caching - define('_OB_CACHING', 'on'); - ob_start(); - } else { - // Extension not loaded or required function is missing - define('_OB_CACHING', '404'); - } - } else { - // Old PHP version - define('_OB_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']); - - // Check for a .php inside the $SELF_DIR... - while (ereg('.php', $SELF_DIR)) { - // Correct the dirname - $SELF_DIR = substr($SELF_DIR, 0, (strpos($SELF_DIR, '.php') + 4)); - // Rewrite filename... - $SELF_FILE = basename($SELF_DIR); - // ... and dirname - $SELF_DIR = dirname($SELF_DIR); + '{OPEN_ANCHOR2}', + '{CLOSE_ANCHOR2}', + '{SLASH}', + '{DOT}', + '{QUOT}', + '{DOLLAR}', + '{OPEN_ANCHOR}', + '{CLOSE_ANCHOR}', + '{OPEN_TEMPLATE}', + '{CLOSE_TEMPLATE}', + '{OPEN_CONFIG}', + '{CLOSE_CONFIG}', + '{PER}', + '{SEMI}', + '{OPEN_INDEX}', + '{CLOSE_INDEX}', + '{DBL_DOT}', + '{COMMENT}' + ), +); + +// Characters allowed in URLs +// +// 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. +$GLOBALS['url_chars'] = array( + // Search for these secured characters + 'to' => array('{SLASH}', '{DOT}', '{PER}', '{DBL_DOT}', '{COMMENT}'), + // Replace with these characters + 'from' => array('/', '.', '%', ':', '--') +); + +// Overworked security part: +if (is_array($_GET)) { + foreach ($_GET as $seckey => $secvalue) { + if (is_array($secvalue)) { + // Throw arrays away... + unset($_GET[$seckey]); + } else { + // Only variables are allowed (non-array) but we secure them all! + foreach ($GLOBALS['security_chars']['from'] as $key => $char) { + // Pass all through + $_GET[$seckey] = str_replace($char , $GLOBALS['security_chars']['to'][$key], $_GET[$seckey]); + } // END - foreach + + // Strip all other out + $_GET[$seckey] = secureString($_GET[$seckey]); } + } // END - foreach +} // END - if - // Put both together again and let's pray it is secured now... - $_SERVER['PHP_SELF'] = $SELF_DIR.'/'.$SELF_FILE; +// Detect PHP caching +detectPhpCaching(); - // Remove uneccessary variables - unset($SELF_DIR); - unset($SELF_FILE); +// At last secure the $_SERVER['PHP_SELF'] element +securePhpSelf(); - // Security system loaded... - define('__SECURITY', '1'); +// Security system loaded... +define('__SECURITY', 1); - // - ?> +// [EOF] +?>