/** * 通用漏洞防护补丁 * 功能说明：防护XSS,SQL,代码执行，文件包含等多种高危漏洞 * Class CheckRequestServer */class CheckRequestServer{    /**     * 过滤提交数据正则     * @var array     */    protected static $filterUrl = [        'xss' => "\\=\\+\\/v(?:8|9|\\+|\\/)|\\%0acontent\\-(?:id|location|type|transfer\\-encoding)",    ];    /**     * 过滤提交数据正则     * @var array     */    protected static $filterArgs = [        'xss'   => "[\\'\\\"\\;\\*\\<\\>].*\\bon[a-zA-Z]{3,15}[\\s\\r\\n\\v\\f]*\\=|\\b(?:expression)\\(|\\
     
       "[^\\{\\s]{1}(\\s|\\b)+(?:select\\b|update\\b|insert(?:(\\/\\*.*?\\*\\/)|(\\s)|(\\+))+into\\b).+?(?:from\\b|set\\b)|[^\\{\\s]{1}(\\s|\\b)+(?:create|delete|drop|truncate|rename|desc)(?:(\\/\\*.*?\\*\\/)|(\\s)|(\\+))+(?:table\\b|from\\b|database\\b)|into(?:(\\/\\*.*?\\*\\/)|\\s|\\+)+(?:dump|out)file\\b|\\bsleep\\([\\s]*[\\d]+[\\s]*\\)|benchmark\\(([^\\,]*)\\,([^\\,]*)\\)|(?:declare|set|select)\\b.*@|union\\b.*(?:select|all)\\b|(?:select|update|insert|create|delete|drop|grant|truncate|rename|exec|desc|from|table|database|set|where)\\b.*(charset|ascii|bin|char|uncompress|concat|concat_ws|conv|export_set|hex|instr|left|load_file|locate|mid|sub|substring|oct|reverse|right|unhex)\\(|(?:master\\.\\.sysdatabases|msysaccessobjects|msysqueries|sysmodules|mysql\\.db|sys\\.database_name|information_schema\\.|sysobjects|sp_makewebtask|xp_cmdshell|sp_oamethod|sp_addextendedproc|sp_oacreate|xp_regread|sys\\.dbms_export_extension)",        'other' => "\\.\\.[\\\\\\/].*\\%00([^0-9a-fA-F]|$)|%00[\\'\\\"\\.]",    ];    /**     * 数据过滤     * @param $filterData     * @param $filterArgs     */    protected static function filterData($filterData, $filterArgs)    {        foreach ($filterData as $key => $value) {            if (!is_array($key)) {                self::filterCheck($key, $filterArgs);            } else {                self::filterData($key, $filterArgs);            }            if (!is_array($value)) {                self::filterCheck($value, $filterArgs);            } else {                self::filterData($value, $filterArgs);            }        }    }    /**     * 数据检查     * @param $str     * @param $filterArgs     */    protected static function filterCheck($str, $filterArgs)    {        foreach ($filterArgs as $key => $value) {            if (preg_match("/" . $value . "/is", $str) == 1 || preg_match("/" . $value . "/is", urlencode($str)) == 1) {                //记录日志 - 信息拦截                exit('您的提交带有不合法参数,谢谢合作');            }        }    }    /**     * 数据检查入口     */    public static function run()    {        $referer     = empty($_SERVER['HTTP_REFERER']) ? [] : [$_SERVER['HTTP_REFERER']];        $queryString = empty($_SERVER["QUERY_STRING"]) ? [] : [$_SERVER["QUERY_STRING"]];        self::filterData($queryString, self::$filterUrl);        self::filterData($_GET, self::$filterArgs);        self::filterData($_POST, self::$filterArgs);        self::filterData($_COOKIE, self::$filterArgs);        self::filterData($referer, self::$filterArgs);    }}CheckRequestServer::run();