<?php
/**
 * Rules Model
 * Called to handle the vulnerability Rules in the config file based on the server type
 *
 * @file  The Rules Model file
 * @package HMWP/RulesModel
 * @since 4.0.0
 */
defined('ABSPATH') || die('Cheatin\' uh?');

class HMWP_Models_Rules
{
    public $root_path;
    public $config_file;
    public $config_chmod;

    public function __construct()
    {
        $this->root_path = HMWP_Classes_Tools::getRootPath();

        if (HMWP_Classes_Tools::isNginx()) {
            $this->config_file = $this->root_path . 'hidemywp.conf';
        } elseif (HMWP_Classes_Tools::isIIS() ) {
            $this->config_file = $this->root_path . 'web.config';
        } elseif (HMWP_Classes_Tools::isApache() || HMWP_Classes_Tools::isLitespeed() ) {
            $this->config_file = $this->root_path . '.htaccess';
        } else {
            $this->config_file = false;
        }
    }

    /**
     * Get the config file
     * @return mixed|void
     */
    public function getConfFile()
    {
        return apply_filters('hmwp_config_file', $this->config_file);
    }

    /**
     * Check if the config file is writable
     *
     * @param string $config_file
     *
     * @return bool
     */
    public function isConfigWritable( $config_file = null )
    {

        //Initialize WordPress Filesystem
        $wp_filesystem = HMWP_Classes_ObjController::initFilesystem();

        //get the global config file if not specified
        if (!isset($config_file) ) {
            $config_file = $this->getConfFile();
        }

        if ($config_file ) {
            //If the config file does not exist
            if (!$wp_filesystem->exists($config_file) ) {
                //can write into directory
                if (!$wp_filesystem->is_writable(dirname($config_file)) ) {
                    return false;
                }
                //can create the file
                if (!$wp_filesystem->touch($config_file) ) {
                    return false;
                }

            } elseif (!$wp_filesystem->is_writable($config_file) ) { //is writable
                return false;
            }
        }

        return true;
    }


    /**
     * Write to config file
     *
     * @param $rules
     * @param string $header
     *
     * @return bool
     * @throws Exception
     */
    public function writeToFile( $rules, $header = 'HMWP_RULES' )
    {
        if ($this->getConfFile() ) {
            if (HMWP_Classes_Tools::isNginx() ) {
                return $this->writeInNginx($rules, $header);
            } elseif (HMWP_Classes_Tools::isIIS() && !HMWP_Classes_Tools::getOption('logout') ) {
                return HMWP_Classes_ObjController::getClass('HMWP_Models_Rewrite')->flushRewrites();
            } elseif (HMWP_Classes_Tools::isApache() || HMWP_Classes_Tools::isLitespeed() ) {
                return $this->writeInHtaccess($rules, $header);
            }
        }

        return false;
    }

    /**
     * Replace text in file
     *
     * @param $old
     * @param $new
     * @param $file
     *
     * @return bool
     */
    public function setReplace( $old, $new, $file )
    {
        if (!$this->isConfigWritable($file) ) {
            return false;
        }

        $found = false;
        $lines = file($file);

        foreach ( (array)$lines as $line ) {
            if (preg_match("/$old/", $line) ) {
                $found = true;
                break;
            }
        }


        if ($found ) {
            $fd = fopen($file, 'w');
            foreach ( (array)$lines as $line ) {
                if (!preg_match("/$old/", $line) ) {
                    fputs($fd, $line);
                } elseif ($new <> '' ) {
                    fputs($fd, $new);
                }
            }
            fclose($fd);
        } elseif ($new <> '' ) {
            $fd = fopen($file, 'w');
            foreach ( (array)$lines as $line ) {
                fputs($fd, $line);

                if (!$found && preg_match('/\$table_prefix/', $line) ) {
                    fputs($fd, $new);
                    $found = true;
                }
            }
            fclose($fd);
        }

        return $found;
    }

    public function writeInNginx( $rules, $header = 'HMWP_RULES' )
    {
        return $this->insertWithMarkers($header, $rules);
    }

    public function writeInHtaccess( $rules, $header = 'HMWP_RULES' )
    {
        if (HMWP_Classes_Tools::isModeRewrite() ) {
            return $this->insertWithMarkers($header, $rules);
        }

        return false;
    }


    /**
     * Inserts an array of strings into a file (.htaccess ), placing it between
     * BEGIN and END markers.
     *
     * Replaces existing marked info. Retains surrounding
     * data. Creates file if none exists.
     *
     * @param string       $marker    The marker to alter.
     * @param array|string $insertion The new content to insert.
     *
     * @return bool True on write success, false on failure.
     */
    public function insertWithMarkers( $marker, $insertion )
    {

        //Initialize WordPress Filesystem
        $wp_filesystem = HMWP_Classes_ObjController::initFilesystem();

        if (!$this->isConfigWritable() ) {
            if (!$this->forceOpenConfigFile($this->getConfFile()) ) {
                return false;
            }
        }

        $start_marker = "# BEGIN $marker";
        $end_marker = "# END $marker";

        if ($insertion == '' ) { //delete the marker if there is no data to add in it

            if (method_exists($wp_filesystem, 'get_contents') && method_exists($wp_filesystem, 'put_contents') ) {
                try {
                    $htaccess = $wp_filesystem->get_contents($this->getConfFile());
                    $htaccess = preg_replace("/$start_marker.*$end_marker/s", "", $htaccess);
                    $htaccess = preg_replace("/\n+/", "\n", $htaccess);
                    $wp_filesystem->put_contents($this->getConfFile(), $htaccess);

                    return true;
                } catch ( Exception $e ) {
                }
            }
        }


        if (!is_array($insertion) ) {
            $insertion = explode("\n", $insertion);
        }

        //open the file only if writable
        if($wp_filesystem->is_writable($this->getConfFile())) {

            $fp = fopen($this->getConfFile(), 'r+');
            if (!$fp) {
                return false;
            }

            // Attempt to get a lock. If the filesystem supports locking, this will block until the lock is acquired.
            flock($fp, LOCK_EX);

            $lines = array();
            while (!feof($fp)) {
                $lines[] = rtrim(fgets($fp), "\r\n");
            }

            // Split out the existing file into the preceding lines, and those that appear after the marker
            $pre_lines = $post_lines = $existing_lines = array();
            $found_marker = $found_end_marker = false;
            foreach ($lines as $line) {
                if (!$found_marker && false !== strpos($line, $start_marker)) {
                    $found_marker = true;
                    continue;
                } elseif (!$found_end_marker && false !== strpos($line, $end_marker)) {
                    $found_end_marker = true;
                    continue;
                }
                if (!$found_marker) {
                    $pre_lines[] = $line;
                } elseif ($found_end_marker) {
                    $post_lines[] = $line;
                } else {
                    $existing_lines[] = $line;
                }
            }

            // Check to see if there was a change
            if ($existing_lines === $insertion) {
                flock($fp, LOCK_UN);
                fclose($fp);

                //Set the chmod back on file close
                $this->closeConfigFile($this->getConfFile());

                return true;
            }

            // Generate the new file data
            if (!$found_marker) {
                $new_file_data = implode(
                    "\n", array_merge(
                        array($start_marker),
                        $insertion,
                        array($end_marker),
                        $pre_lines
                    )
                );
            } else {
                $new_file_data = implode(
                    "\n", array_merge(
                        $pre_lines,
                        array($start_marker),
                        $insertion,
                        array($end_marker),
                        $post_lines
                    )
                );
            }

            // Write to the start of the file, and truncate it to that length
            fseek($fp, 0);
            $bytes = fwrite($fp, $new_file_data);
            if ($bytes) {
                ftruncate($fp, ftell($fp));
            }
            fflush($fp);
            flock($fp, LOCK_UN);
            fclose($fp);

            //Set the chmod back on file close
            $this->closeConfigFile($this->getConfFile());

            return (bool)$bytes;
        }

        return false;
    }

    /**
     * Force opening the file
     *
     * @param $config_file
     *
     * @return bool
     */
    public function forceOpenConfigFile( $config_file )
    {
        $this->config_chmod = false;

        //Initialize WordPress Filesystem
        $wp_filesystem = HMWP_Classes_ObjController::initFilesystem();

        if (!HMWP_Classes_Tools::isWindows() && $wp_filesystem->exists($config_file) ) {

            if (method_exists($wp_filesystem, 'getchmod') && method_exists($wp_filesystem, 'chmod') ) {
                $this->config_chmod = $wp_filesystem->getchmod($config_file);
                $wp_filesystem->chmod($config_file, 0664);

                if (is_writeable($config_file) ) {
                    if (method_exists($wp_filesystem, 'copy') ) {
                        $wp_filesystem->copy($config_file, $config_file . '_bk');
                    }

                    return true;
                }
            }
        }

        return false;
    }

    /**
     *  Set the chmod back on file close
     *
     * @param $config_file
     */
    public function closeConfigFile( $config_file )
    {

        //Initialize WordPress Filesystem
        $wp_filesystem = HMWP_Classes_ObjController::initFilesystem();

        if ($this->config_chmod && isset($wp_filesystem) ) {
            if ($this->config_chmod == '400' ) {
                $wp_filesystem->chmod($config_file, 0400);
            } elseif ($this->config_chmod == '440' ) {
                $wp_filesystem->chmod($config_file, 0440);
            } else {
                $wp_filesystem->chmod($config_file, 0444);
            }
        }
    }

    /**
     * Hide the Old Paths like /hmwp_wp-content_url, /hmwp_wp-includes_url
     */
    public function getHideOldPathRewrite()
    {
        $rules = '';

        $home_root = '/';
        if(HMWP_Classes_Tools::isMultisites() && defined('PATH_CURRENT_SITE')){
            $path = PATH_CURRENT_SITE;
        }else {
            $path = parse_url(site_url(), PHP_URL_PATH);
        }

        if ($path) {
            $home_root = trailingslashit($path);
        }

        $wp_content = HMWP_Classes_Tools::getDefault('hmwp_wp-content_url');
        $wp_includes = HMWP_Classes_Tools::getDefault('hmwp_wp-includes_url');

        $extensions = array();
        $types = (array)HMWP_Classes_Tools::getOption('hmwp_hide_oldpaths_types');
        $files = (array)HMWP_Classes_Tools::getOption('hmwp_hide_commonfiles_files');


        if (!empty($files) && ($key = array_search(HMWP_Classes_Tools::getDefault('hmwp_wp-comments-post'), $files)) !== false) {
            unset($files[$key]);
        }

        //Do not hide upgrade.php file from logged users
        if (!empty($files) &&  ($key = array_search('upgrade.php', $files)) !== false) {
            unset($files[$key]);
        }

        if (in_array('css', $types) ) {
            $extensions[] = '\.css';
            $extensions[] = '\.scss';
        }
        if (in_array('js', $types) ) {
            $extensions[] = '\.js';
        }
        if (in_array('php', $types) ) {
            $extensions[] = '\.php';
        }
        if (in_array('html', $types) ) {
            $extensions[] = '\.htm';
            $extensions[] = '\.html';
        }
        if (in_array('txt', $types) ) {
            $extensions[] = '\.rtf';
            $extensions[] = '\.rtx';
            $extensions[] = '\.txt';
        }
        if (in_array('xml', $types) ) {
            $extensions[] = '\.xsd';
            $extensions[] = '\.xml';
        }
        if (in_array('json', $types) ) {
            $extensions[] = '\.json';
        }
        if (in_array('lock', $types) ) {
            $extensions[] = '\.lock';
        }
        if (in_array('image', $types) ) {
            $extensions[] = '\.jpg';
            $extensions[] = '\.jpeg';
            $extensions[] = '\.bmp';
            $extensions[] = '\.png';
            $extensions[] = '\.webp';
        }

        //Hook the list of the extensions to block on old paths
        $extensions = apply_filters('hmwp_common_paths_extensions', $extensions);

        if (HMWP_Classes_Tools::isNginx() ) {
            if(HMWP_Classes_Tools::getOption('hmwp_hide_oldpaths')) {
                if (HMWP_Classes_Tools::getDefault('hmwp_wp-content_url') <> HMWP_Classes_Tools::getOption('hmwp_wp-content_url')) {
                    $rules .= 'set $cond "";' . PHP_EOL;
                    $rules .= 'if ($http_cookie !~* "wordpress_logged_in_|' . HMWP_LOGGED_IN_COOKIE . '|wp-postpass_|wptouch_switch_toggle|comment_author_|comment_author_email_" ) {  set $cond cookie; }' . PHP_EOL;
                    $rules .= 'if ($request_uri ~* ^' . $home_root . $wp_content . '/?$) { set $cond "${cond}+deny_uri"; }' . PHP_EOL;
                    $rules .= 'if ($request_uri ~* ^' . $home_root . $wp_content . '/[^\.]+/?$) { set $cond "${cond}+deny_uri"; }' . PHP_EOL;
                    if (HMWP_Classes_Tools::getDefault('hmwp_wp-includes_url') <> HMWP_Classes_Tools::getOption('hmwp_wp-includes_url')) {
                        $rules .= 'if ($request_uri ~* ^' . $home_root . $wp_includes . '/?$) { set $cond "${cond}+deny_uri"; }' . PHP_EOL;
                    }
                    if (!empty($extensions)) {
                        if (HMWP_Classes_Tools::getDefault('hmwp_plugin_url') <> HMWP_Classes_Tools::getOption('hmwp_plugin_url') ) {
                            $rules .= 'if ($request_uri ~* ^' . $home_root . HMWP_Classes_Tools::getDefault('hmwp_plugin_url') . '/[^\.]+(' . join('|', $extensions) . ')) { set $cond "${cond}+deny_uri"; }' . PHP_EOL;
                        }
                        if (HMWP_Classes_Tools::getDefault('hmwp_themes_url') <> HMWP_Classes_Tools::getOption('hmwp_themes_url') ) {
                            $rules .= 'if ($request_uri ~* ^' . $home_root . $wp_content . '/' . HMWP_Classes_Tools::getDefault('hmwp_themes_url') . '/[^\.]+(' . join('|', $extensions) . ')) { set $cond "${cond}+deny_uri"; }' . PHP_EOL;
                        }
                        if (HMWP_Classes_Tools::getDefault('hmwp_upload_url') <> HMWP_Classes_Tools::getOption('hmwp_upload_url')) {
                            $rules .= 'if ($request_uri ~* ^' . $home_root . $wp_content . '/' . HMWP_Classes_Tools::getDefault('hmwp_upload_url') . '/[^\.]+(' . join('|', $extensions) . ')) { set $cond "${cond}+deny_uri"; }' . PHP_EOL;
                        }
                        if (HMWP_Classes_Tools::getDefault('hmwp_wp-includes_url') <> HMWP_Classes_Tools::getOption('hmwp_wp-includes_url')) {
                            $rules .= 'if ($request_uri ~* ^' . $home_root . $wp_includes . '/[^\.]+(' . join('|', $extensions) . ')) { set $cond "${cond}+deny_uri"; }' . PHP_EOL;
                        }
                    }

                    //hide the installation and upgrade files for not loggedin users
                    $rules .= 'if ($request_uri ~* ^'. $home_root .'wp-admin/(install.php|upgrade.php)) { set $cond "${cond}+deny_uri"; }' . PHP_EOL;
                    $rules .= 'if ($cond = "cookie+deny_uri") {  return 404; } ' . PHP_EOL;
                }
            }
            if (HMWP_Classes_Tools::getOption('hmwp_hide_commonfiles') && !empty($files)) {
                $rules .= 'location ~ ^/('.join( '|', $files ).') { deny all; }' . PHP_EOL;
            }

        } elseif (HMWP_Classes_Tools::isApache() || HMWP_Classes_Tools::isLitespeed() ) {
            $rules .= "<IfModule mod_rewrite.c>" . PHP_EOL;
            $rules .= "RewriteEngine On" . PHP_EOL;
            $rules .= "RewriteBase $home_root" . PHP_EOL;
            $rules .= "RewriteCond %{HTTP:Cookie} !(wordpress_logged_in_|" . HMWP_LOGGED_IN_COOKIE . "|wp-postpass_|wptouch_switch_toggle|comment_author_|comment_author_email_) [NC]" . PHP_EOL;
            if (defined('WP_ROCKET_MINIFY_CACHE_URL') ) { //If WP-Rocket is installed
                $rules .= "RewriteCond %{REQUEST_URI} !" . str_replace(array(home_url() . '/', HMWP_Classes_Tools::getDefault('hmwp_wp-content_url')), '', ltrim(WP_ROCKET_MINIFY_CACHE_URL, '/')) . " [NC]" . PHP_EOL;
            }

            if(HMWP_Classes_Tools::getOption('hmwp_hide_oldpaths')) {
                if (HMWP_Classes_Tools::getDefault('hmwp_wp-content_url') <> HMWP_Classes_Tools::getOption('hmwp_wp-content_url')) {
                    $rules .= "RewriteCond %{REQUEST_URI} ^" . $home_root . $wp_content . "/?$ [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} ^" . $home_root . $wp_content . "/[^\.]+/?$ [NC,OR]" . PHP_EOL;
                }
                if (HMWP_Classes_Tools::getDefault('hmwp_wp-includes_url') <> HMWP_Classes_Tools::getOption('hmwp_wp-includes_url')) {
                    $rules .= "RewriteCond %{THE_REQUEST} " . $home_root . $wp_includes . "/?$ [NC,OR]" . PHP_EOL;
                }
                if (!empty($extensions)) {
                    if (HMWP_Classes_Tools::getDefault('hmwp_plugin_url') <> HMWP_Classes_Tools::getOption('hmwp_plugin_url')) {
                        $rules .= "RewriteCond %{THE_REQUEST} " . $home_root . HMWP_Classes_Tools::getDefault('hmwp_plugin_url') . "/[^\.]+(" . join('|', $extensions) . ") [NC,OR]" . PHP_EOL;
                    }
                    if (HMWP_Classes_Tools::getDefault('hmwp_themes_url') <> HMWP_Classes_Tools::getOption('hmwp_themes_url') ) {
                        $rules .= "RewriteCond %{THE_REQUEST} " . $home_root . $wp_content . "/" . HMWP_Classes_Tools::getDefault('hmwp_themes_url') . "/[^\.]+(" . join('|', $extensions) . ")    [NC,OR]" . PHP_EOL;
                    }
                    if (HMWP_Classes_Tools::getDefault('hmwp_upload_url') <> HMWP_Classes_Tools::getOption('hmwp_upload_url')) {
                        $rules .= "RewriteCond %{THE_REQUEST} " . $home_root . $wp_content . '/' . HMWP_Classes_Tools::getDefault('hmwp_upload_url') . "/[^\.]+(" . join('|', $extensions) . ") [NC,OR]" . PHP_EOL;
                    }
                    if (HMWP_Classes_Tools::getDefault('hmwp_wp-includes_url') <> HMWP_Classes_Tools::getOption('hmwp_wp-includes_url')) {
                        $rules .= "RewriteCond %{THE_REQUEST} " . $home_root . $wp_includes . "/[^\.]+(" . join('|', $extensions) . ") [NC,OR]" . PHP_EOL;
                    }
                }

            }

            if (HMWP_Classes_Tools::getOption('hmwp_hide_commonfiles') && !empty($files) ) {
                $rules .= "RewriteCond %{THE_REQUEST} /([_0-9a-zA-Z-]+/)?(" . str_replace('.', '\\.', join('|', $files)) . ") [NC]" . PHP_EOL;
            }else{
                $rules .= "RewriteCond %{THE_REQUEST} /([_0-9a-zA-Z-]+/)?(upgrade\\.php|install\\.php) [NC]" . PHP_EOL;
            }

            $rules .= "RewriteRule ^(.*)$ - [L,R=404]" . PHP_EOL;
            $rules .= "</IfModule>" . PHP_EOL . PHP_EOL;

            if (HMWP_Classes_Tools::getOption('hmwp_hide_commonfiles')  ) {
                $rules .= "<IfModule mod_rewrite.c>" . PHP_EOL;
                $rules .= "RewriteEngine On" . PHP_EOL;
                if(!empty($files)) {
                    $rules .= "RewriteCond %{REQUEST_URI} /(" . str_replace('.', '\\.', join('|', $files)) . ") [NC]" . PHP_EOL;
                }else {
                    $rules .= "RewriteCond %{REQUEST_URI} /(error_log|wp-config-sample\\.php|readme\\.html|readme\\.txt|license\\.txt|install\\.php|wp-config\\.php|php\\.ini|php5\\.ini|bb-config\\.php) [NC]" . PHP_EOL;
                }
                $rules .= "RewriteRule ^(.*)$ - [L,R=404]" . PHP_EOL;
                $rules .= "</IfModule>" . PHP_EOL . PHP_EOL;
            }


        } elseif (HMWP_Classes_Tools::isIIS() ) {
            if (HMWP_Classes_Tools::getOption('hmwp_hide_oldpaths')) {
                if (HMWP_Classes_Tools::getDefault('hmwp_wp-content_url') <> HMWP_Classes_Tools::getOption('hmwp_wp-content_url')) {
                    $rules .= '
                    <rule name="HideMyWp: block_oldpaths_content" stopProcessing="true">
                        <match url="^' . $wp_content . '/?$" ignoreCase="false" />
                         <conditions>
                          <add input="{HTTP_COOKIE}" pattern="(wordpress_logged_in_|' . HMWP_LOGGED_IN_COOKIE . '|wp-postpass_|wptouch_switch_toggle|comment_author_|comment_author_email_)" negate="true" />
                         </conditions>
                        <action type="CustomResponse" statusCode="404" statusReason="File Not Found" statusDescription="The requested path was not found" />
                    </rule>';
                    $rules .= '
                    <rule name="HideMyWp: block_oldpaths_content_paths" stopProcessing="true">
                        <match url="^' . $wp_content . '/[^\.]+/?$" ignoreCase="false" />
                         <conditions>
                          <add input="{HTTP_COOKIE}" pattern="(wordpress_logged_in_|' . HMWP_LOGGED_IN_COOKIE . '|wp-postpass_|wptouch_switch_toggle|comment_author_|comment_author_email_)" negate="true" />
                         </conditions>
                        <action type="CustomResponse" statusCode="404" statusReason="File Not Found" statusDescription="The requested path was not found" />
                    </rule>';
                }
                if (!empty($extensions)) {
                    if (HMWP_Classes_Tools::getDefault('hmwp_plugin_url') <> HMWP_Classes_Tools::getOption('hmwp_plugin_url')) {
                        $rules .= '
                    <rule name="HideMyWp: block_oldpaths_plugin" stopProcessing="true">
                        <match url="^' . HMWP_Classes_Tools::getDefault('hmwp_plugin_url') . '/[^\.]+(' . join('|', $extensions) . ')' . '" ignoreCase="false" />
                         <conditions>
                          <add input="{HTTP_COOKIE}" pattern="(wordpress_logged_in_|' . HMWP_LOGGED_IN_COOKIE . '|wp-postpass_|wptouch_switch_toggle|comment_author_|comment_author_email_)" negate="true" />
                         </conditions>
                        <action type="CustomResponse" statusCode="404" statusReason="File Not Found" statusDescription="The requested path was not found" />
                    </rule>';
                    }
                    if (HMWP_Classes_Tools::getDefault('hmwp_themes_url') <> HMWP_Classes_Tools::getOption('hmwp_themes_url') ) {
                        $rules .= '
                    <rule name="HideMyWp: block_oldpaths_themes" stopProcessing="true">
                        <match url="^' . HMWP_Classes_Tools::getDefault('hmwp_themes_url') . '/[^\.]+(' . join('|', $extensions) . ')' . '" ignoreCase="false" />
                         <conditions>
                          <add input="{HTTP_COOKIE}" pattern="(wordpress_logged_in_|' . HMWP_LOGGED_IN_COOKIE . '|wp-postpass_|wptouch_switch_toggle|comment_author_|comment_author_email_)" negate="true" />
                         </conditions>
                        <action type="CustomResponse" statusCode="404" statusReason="File Not Found" statusDescription="The requested path was not found" />
                    </rule>';
                    }
                }
                $rules .= '
                    <rule name="HideMyWp: block_upgrade" stopProcessing="true">
                        <match url="^([_0-9a-zA-Z-]+/)?(upgrade.php|install.php)" ignoreCase="false" />
                         <conditions>
                          <add input="{HTTP_COOKIE}" pattern="(wordpress_logged_in_|' . HMWP_LOGGED_IN_COOKIE . '|wp-postpass_|wptouch_switch_toggle|comment_author_|comment_author_email_)" negate="true" />
                         </conditions>
                        <action type="CustomResponse" statusCode="404" statusReason="File Not Found" statusDescription="The requested path was not found" />
                    </rule>';
            }
        }
        return $rules;
    }

    /**
     * Add rules to protect the website from sql injection
     *
     * @return string
     */
    public function getInjectionRewrite()
    {
        $rules = '';

        $home_root = '/';
        if(HMWP_Classes_Tools::isMultisites() && defined('PATH_CURRENT_SITE')){
            $path = PATH_CURRENT_SITE;
        }else {
            $path = parse_url(site_url(), PHP_URL_PATH);
        }

        if ($path) {
            $home_root = trailingslashit($path);
        }

        if (HMWP_Classes_Tools::isNginx() ) {

            if (HMWP_Classes_Tools::getOption('hmwp_hide_authors') ) {
                $rules .= 'if ($http_cookie !~* "wordpress_logged_in_|' . HMWP_LOGGED_IN_COOKIE . '" ) {  set $cond cookie; }' . PHP_EOL;
                $rules .= 'if ($request_uri ~* author=\d+$) { set $cond "${cond}+author_uri"; }' . PHP_EOL;
                $rules .= 'if ($cond = "cookie+author_uri") {  return 404; } ' . PHP_EOL;
            }

            if (HMWP_Classes_Tools::getOption('hmwp_disable_browsing') ) {
                $rules .= 'autoindex off;' . PHP_EOL;
            }

            if (HMWP_Classes_Tools::getOption('hmwp_security_header') ) {

                $headers = (array)HMWP_Classes_Tools::getOption('hmwp_security_headers');

                if(!empty($headers)) {
                    foreach ($headers as $name => $value) {
                        if ($value <> '') {
                            $rules .= 'add_header ' . $name . ' "' . str_replace('"', '\"', $value) . '";' . PHP_EOL;
                        }
                    }
                }
            }

            if (HMWP_Classes_Tools::getOption('hmwp_detectors_block') ) {
                $rules .= 'if ( $http_user_agent ~ \'wpthemedetector\' ) { return 404; }' . PHP_EOL;
                $rules .= 'if ( $http_referer ~ \'wpthemedetector\' ) { return 404; }' . PHP_EOL;
                $rules .= 'if ( $http_user_agent ~ \'builtwith\' ) { return 404; }' . PHP_EOL;
                $rules .= 'if ( $http_user_agent ~ \'isitwp\' ) { return 404; }' . PHP_EOL;
                $rules .= 'if ( $http_user_agent ~ \'wapalyzer\' ) { return 404; }' . PHP_EOL;
                $rules .= 'if ( $http_referer ~ \'mShots\' ) { return 404; }' . PHP_EOL;
                $rules .= 'if ( $http_referer ~ \'WhatCMS\' ) { return 404; }' . PHP_EOL;
            }
        } elseif (HMWP_Classes_Tools::isApache() || HMWP_Classes_Tools::isLitespeed() ) {

            if (HMWP_Classes_Tools::getOption('hmwp_sqlinjection')  && (int)HMWP_Classes_Tools::getOption('hmwp_sqlinjection_level') > 0) {
                $rules .= "<IfModule mod_rewrite.c>" . PHP_EOL;
                $rules .= "RewriteEngine On" . PHP_EOL;
                $rules .= "RewriteBase $home_root" . PHP_EOL;
                // Prevent -f checks on index.php.
                if((int)HMWP_Classes_Tools::getOption('hmwp_sqlinjection_level') == 1) {
                    $rules .= "RewriteCond %{THE_REQUEST} etc/passwd [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{THE_REQUEST} cgi-bin [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (\\<|%3C).*object.*(\\>|%3E) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (<|%3C)([^o]*o)+bject.*(>|%3E) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (\\<|%3C).*iframe.*(\\>|%3E) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (<|%3C)([^i]*i)+frame.*(>|%3E) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} base64_encode.*\\(.*\\) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} base64_(en|de)code[^(]*\\([^)]*\\) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (localhost|loopback|127\\.0\\.0\\.1) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} concat[^\\(]*\\( [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} union([^s]*s)+elect [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} union([^a]*a)+ll([^s]*s)+elect [NC,OR]" . PHP_EOL;

                    $rules .= "RewriteCond %{QUERY_STRING} (sp_executesql) [NC]" . PHP_EOL;


                }elseif((int)HMWP_Classes_Tools::getOption('hmwp_sqlinjection_level') == 2) {
                    $rules .= "RewriteCond %{HTTP_USER_AGENT} (%0A|%0D|%3C|%3E|%00) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{HTTP_USER_AGENT} (;|<|>|'|\\\"|\\)|\\(|%0A|%0D|%22|%28|%3C|%3E|%00).*(libwww-perl|wget|python|nikto|curl|scan|java|winhttp|HTTrack|clshttp|archiver|loader|email|harvest|extract|grab|miner) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{THE_REQUEST} (\\*|%2a)+(%20+|\\s+|%20+\\s+|\\s+%20+|\\s+%20+\\s+)HTTP(:/|/) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{THE_REQUEST} etc/passwd [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{THE_REQUEST} cgi-bin [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{THE_REQUEST} (%0A|%0D|\\r|\\n) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} owssvr\\.dll [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{HTTP_REFERER} (%0A|%0D|%3C|%3E|%00) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{HTTP_REFERER} \\.opendirviewer\\. [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{HTTP_REFERER} users\\.skynet\\.be.* [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} [a-zA-Z0-9_]=http:// [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} [a-zA-Z0-9_]=(\\.\\.//?)+ [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} [a-zA-Z0-9_]=/([a-z0-9_.]//?)+ [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} \\=PHP[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (\\.\\./|%2e%2e%2f|%2e%2e/|\\.\\.%2f|%2e\\.%2f|%2e\\./|\\.%2e%2f|\\.%2e/) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} ftp\\: [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} \\=\\|w\\| [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} ^(.*)/self/(.*)$ [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} ^(.*)cPath=http://(.*)$ [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} base64_encode.*\\(.*\\) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} base64_(en|de)code[^(]*\\([^)]*\\) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} GLOBALS(=|\\[|\\%[0-9A-Z]{0,2}) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} _REQUEST(=|\\[|\\%[0-9A-Z]{0,2}) [NC,OR]" . PHP_EOL;

                    if ( ! HMWP_Classes_Tools::isPluginActive( 'backup-guard-gold/backup-guard-pro.php' ) && ! HMWP_Classes_Tools::isPluginActive( 'wp-reset/wp-reset.php' ) && ! HMWP_Classes_Tools::isPluginActive( 'wp-statistics/wp-statistics.php' ) ) {
                        $rules .= "RewriteCond %{QUERY_STRING} (\\<|%3C).*script.*(\\>|%3E) [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} (<|%3C)([^s]*s)+cript.*(>|%3E) [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} (\\<|%3C).*embed.*(\\>|%3E) [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} (<|%3C)([^e]*e)+mbed.*(>|%3E) [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} (\\<|%3C).*object.*(\\>|%3E) [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} (<|%3C)([^o]*o)+bject.*(>|%3E) [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} (\\<|%3C).*iframe.*(\\>|%3E) [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} (<|%3C)([^i]*i)+frame.*(>|%3E) [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} ^.*(\\(|\\)|<|>|%3c|%3e).* [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} (<|>|'|%0A|%0D|%3C|%3E|%00) [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} (;|<|>|'|\"|\\)|%0A|%0D|%22|%27|%3C|%3E|%00).*(/\\*|union|select|insert|drop|delete|cast|create|char|convert|alter|declare|script|set|md5|benchmark|encode) [NC,OR]" . PHP_EOL;
                    }

                    $rules .= "RewriteCond %{QUERY_STRING} ^.*(\\x00|\\x04|\\x08|\\x0d|\\x1b|\\x20|\\x3c|\\x3e|\\x7f).* [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (NULL|OUTFILE|LOAD_FILE) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (\\.{1,}/)+(motd|etc|bin) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (localhost|loopback|127\\.0\\.0\\.1) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} concat[^\\(]*\\( [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} union([^s]*s)+elect [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} union([^a]*a)+ll([^s]*s)+elect [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} \\-[sdcr].*(allow_url_include|allow_url_fopen|safe_mode|disable_functions|auto_prepend_file) [NC,OR]" . PHP_EOL;

                    $rules .= "RewriteCond %{QUERY_STRING} (sp_executesql) [NC]" . PHP_EOL;

                }elseif((int)HMWP_Classes_Tools::getOption('hmwp_sqlinjection_level') == 3) {
                    $rules .= "RewriteCond %{HTTP_USER_AGENT} ([a-z0-9]{2000,}) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{HTTP_USER_AGENT} (&lt;|%0a|%0d|%27|%3c|%3e|%00|0x00) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{HTTP_USER_AGENT} (ahrefs|alexibot|majestic|mj12bot|rogerbot) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{HTTP_USER_AGENT} ((c99|php|web)shell|remoteview|site((.){0,2})copier) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{HTTP_USER_AGENT} (econtext|eolasbot|eventures|liebaofast|nominet|oppo\sa33) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{HTTP_USER_AGENT} (base64_decode|bin/bash|disconnect|eval|lwp-download|unserialize) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{HTTP_USER_AGENT} (acapbot|acoonbot|asterias|attackbot|backdorbot|becomebot|binlar|blackwidow|blekkobot|blexbot|blowfish|bullseye|bunnys|butterfly|careerbot|casper|checkpriv|cheesebot|cherrypick|chinaclaw|choppy|clshttp|cmsworld|copernic|copyrightcheck|cosmos|crescent|cy_cho|datacha|demon|diavol|discobot|dittospyder|dotbot|dotnetdotcom|dumbot|emailcollector|emailsiphon|emailwolf|extract|eyenetie|feedfinder|flaming|flashget|flicky|foobot|g00g1e|getright|gigabot|go-ahead-got|gozilla|grabnet|grafula|harvest|heritrix|httrack|icarus6j|jetbot|jetcar|jikespider|kmccrew|leechftp|libweb|linkextractor|linkscan|linkwalker|loader|masscan|miner|mechanize|morfeus|moveoverbot|netmechanic|netspider|nicerspro|nikto|ninja|nutch|octopus|pagegrabber|petalbot|planetwork|postrank|proximic|purebot|pycurl|python|queryn|queryseeker|radian6|radiation|realdownload|scooter|seekerspider|semalt|siclab|sindice|sistrix|sitebot|siteexplorer|sitesnagger|skygrid|smartdownload|snoopy|sosospider|spankbot|spbot|sqlmap|stackrambler|stripper|sucker|surftbot|sux0r|suzukacz|suzuran|takeout|teleport|telesoft|true_robots|turingos|turnit|vampire|vikspider|voideye|webleacher|webreaper|webstripper|webvac|webviewer|webwhacker|winhttp|wwwoffle|woxbot|xaldon|xxxyy|yamanalab|yioopbot|youda|zeus|zmeu|zune|zyborg) [NC,OR]" . PHP_EOL;

                    $rules .= "RewriteCond %{QUERY_STRING} ([a-z0-9]{2000,}) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (/|%2f)(:|%3a)(/|%2f) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (order(\s|%20)by(\s|%20)1--) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (/|%2f)(\*|%2a)(\*|%2a)(/|%2f) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (ckfinder|fck|fckeditor|fullclick) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} ((.*)header:|(.*)set-cookie:(.*)=) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (cmd|command)(=|%3d)(chdir|mkdir)(.*)(x20) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (globals|mosconfig([a-z_]{1,22})|request)(=|\[) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (/|%2f)((wp-)?config)((\.|%2e)inc)?((\.|%2e)php) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (thumbs?(_editor|open)?|tim(thumbs?)?)((\.|%2e)php) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (absolute_|base|root_)(dir|path)(=|%3d)(ftp|https?) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (localhost|loopback|127(\.|%2e)0(\.|%2e)0(\.|%2e)1) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (s)?(ftp|inurl|php)(s)?(:(/|%2f|%u2215)(/|%2f|%u2215)) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (\.|20)(get|the)(_|%5f)(permalink|posts_page_url)(\(|%28) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} ((boot|win)((\.|%2e)ini)|etc(/|%2f)passwd|self(/|%2f)environ) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (((/|%2f){3,3})|((\.|%2e){3,3})|((\.|%2e){2,2})(/|%2f|%u2215)) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (benchmark|char|exec|fopen|function|html)(.*)(\(|%28)(.*)(\)|%29) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (php)([0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (e|%65|%45)(v|%76|%56)(a|%61|%31)(l|%6c|%4c)(.*)(\(|%28)(.*)(\)|%29) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (/|%2f)(=|%3d|$&|_mm|cgi(\.|-)|inurl(:|%3a)(/|%2f)|(mod|path)(=|%3d)(\.|%2e)) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (\+|%2b|%20)(d|%64|%44)(e|%65|%45)(l|%6c|%4c)(e|%65|%45)(t|%74|%54)(e|%65|%45)(\+|%2b|%20) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (\+|%2b|%20)(i|%69|%49)(n|%6e|%4e)(s|%73|%53)(e|%65|%45)(r|%72|%52)(t|%74|%54)(\+|%2b|%20) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (\+|%2b|%20)(s|%73|%53)(e|%65|%45)(l|%6c|%4c)(e|%65|%45)(c|%63|%43)(t|%74|%54)(\+|%2b|%20) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (\+|%2b|%20)(u|%75|%55)(p|%70|%50)(d|%64|%44)(a|%61|%41)(t|%74|%54)(e|%65|%45)(\+|%2b|%20) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (g|%67|%47)(l|%6c|%4c)(o|%6f|%4f)(b|%62|%42)(a|%61|%41)(l|%6c|%4c)(s|%73|%53)(=|\[|%[0-9A-Z]{0,2}) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (_|%5f)(r|%72|%52)(e|%65|%45)(q|%71|%51)(u|%75|%55)(e|%65|%45)(s|%73|%53)(t|%74|%54)(=|\[|%[0-9A-Z]{2,}) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (j|%6a|%4a)(a|%61|%41)(v|%76|%56)(a|%61|%31)(s|%73|%53)(c|%63|%43)(r|%72|%52)(i|%69|%49)(p|%70|%50)(t|%74|%54)(:|%3a)(.*)(;|%3b|\)|%29) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (b|%62|%42)(a|%61|%41)(s|%73|%53)(e|%65|%45)(6|%36)(4|%34)(_|%5f)(e|%65|%45|d|%64|%44)(e|%65|%45|n|%6e|%4e)(c|%63|%43)(o|%6f|%4f)(d|%64|%44)(e|%65|%45)(.*)(\()(.*)(\)) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (@copy|\\\$_(files|get|post)|allow_url_(fopen|include)|auto_prepend_file|blexbot|browsersploit|(c99|php)shell|curl(_exec|test)|disable_functions?|document_root|elastix|encodeuricom|exploit|fclose|fgets|file_put_contents|fputs|fsbuff|fsockopen|gethostbyname|grablogin|hmei7|input_file|null|open_basedir|outfile|passthru|phpinfo|popen|proc_open|quickbrute|remoteview|root_path|safe_mode|shell_exec|site((.){0,2})copier|sux0r|trojan|user_func_array|wget|xertive) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} ((\+|%2b)(concat|delete|get|select|union)(\+|%2b)) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (union)(.*)(select)(.*)(\(|%28) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{QUERY_STRING} (concat|eval)(.*)(\(|%28) [NC,OR]" . PHP_EOL;

                    if ( ! HMWP_Classes_Tools::isPluginActive( 'wp-reset/wp-reset.php' ) && ! HMWP_Classes_Tools::isPluginActive( 'wp-statistics/wp-statistics.php' ) ) {
                        $rules .= "RewriteCond %{QUERY_STRING} (<|%3c)(.*)(e|%65|%45)(m|%6d|%4d)(b|%62|%42)(e|%65|%45)(d|%64|%44)(.*)(>|%3e) [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} (<|%3c)(.*)(i|%69|%49)(f|%66|%46)(r|%72|%52)(a|%61|%41)(m|%6d|%4d)(e|%65|%45)(.*)(>|%3e) [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} (<|%3c)(.*)(o|%4f|%6f)(b|%62|%42)(j|%4a|%6a)(e|%65|%45)(c|%63|%43)(t|%74|%54)(.*)(>|%3e) [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} (<|%3c)(.*)(s|%73|%53)(c|%63|%43)(r|%72|%52)(i|%69|%49)(p|%70|%50)(t|%74|%54)(.*)(>|%3e) [NC,OR]" . PHP_EOL;
                        $rules .= "RewriteCond %{QUERY_STRING} (;|<|>|\'|\\\"|\)|%0a|%0d|%22|%27|%3c|%3e|%00)(.*)(/\*|alter|base64|benchmark|cast|concat|convert|create|encode|declare|delete|drop|insert|md5|request|script|select|union|update) [NC,OR]" . PHP_EOL;
                    }

                    $rules .= "RewriteCond %{REQUEST_URI} (\^|`|<|>|\\\|\|) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} ([a-z0-9]{2000,}) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (=?\\\(\'|%27)/?)(\.) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (/)(\*|\\\"|\'|\.|,|&|&amp;?)/?$ [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (\.)(php)(\()?([0-9]+)(\))?(/)?$ [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (/)(vbulletin|boards|vbforum)(/)? [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} /((.*)header:|(.*)set-cookie:(.*)=) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (/)(ckfinder|fck|fckeditor|fullclick) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (\.(s?ftp-?)config|(s?ftp-?)config\.) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (\{0\}|\\\"?0\\\"?=\\\"?0|\(/\(|\.\.\.|\+\+\+|\\\\\\\") [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (thumbs?(_editor|open)?|tim(thumbs?)?)(\.php) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (\.|20)(get|the)(_)(permalink|posts_page_url)(\() [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (///|\?\?|/&&|/\*(.*)\*/|/:/|\\\\\\\\|0x00|%00|%0d%0a) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (/%7e)(root|ftp|bin|nobody|named|guest|logs|sshd)(/) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (/)(etc|var)(/)(hidden|secret|shadow|ninja|passwd|tmp)(/)?$ [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (s)?(ftp|http|inurl|php)(s)?(:(/|%2f|%u2215)(/|%2f|%u2215)) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (/)(=|\\\$&?|&?(pws|rk)=0|_mm|_vti_|cgi(\.|-)?|(=|/|;|,)nt\.) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (\.)(ds_store|htaccess|htpasswd|init?|mysql-select-db)(/)?$ [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (/)(bin)(/)(cc|chmod|chsh|cpp|echo|id|kill|mail|nasm|perl|ping|ps|python|tclsh)(/)?$ [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (/)(::[0-9999]|%3a%3a[0-9999]|127\.0\.0\.1|localhost|loopback|makefile|pingserver|wwwroot)(/)? [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (\(null\)|\{\\\$itemURL\}|cAsT\(0x|echo(.*)kae|etc/passwd|eval\(|self/environ|\+union\+all\+select) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (/)?j((\s)+)?a((\s)+)?v((\s)+)?a((\s)+)?s((\s)+)?c((\s)+)?r((\s)+)?i((\s)+)?p((\s)+)?t((\s)+)?(%3a|:) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (/)(awstats|(c99|php|web)shell|document_root|error_log|listinfo|muieblack|remoteview|site((.){0,2})copier|sqlpatch|sux0r) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (/)((php|web)?shell|crossdomain|fileditor|locus7|nstview|php(get|remoteview|writer)|r57|remview|sshphp|storm7|webadmin)(.*)(\.|\() [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (/)(author-panel|bitrix|class|database|(db|mysql)-?admin|filemanager|htdocs|httpdocs|https?|mailman|mailto|msoffice|mysql|_?php-my-admin(.*)|tmp|undefined|usage|var|vhosts|webmaster|www)(/) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (base64_(en|de)code|benchmark|child_terminate|curl_exec|e?chr|eval|function|fwrite|(f|p)open|html|leak|passthru|p?fsockopen|phpinfo|posix_(kill|mkfifo|setpgid|setsid|setuid)|proc_(close|get_status|nice|open|terminate)|(shell_)?exec|system)(.*)(\()(.*)(\)) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (/)(^$|00.temp00|0day|3index|3xp|70bex?|admin_events|bkht|(php|web)?shell|c99|config(\.)?bak|curltest|db|dompdf|filenetworks|hmei7|index\.php/index\.php/index|jahat|kcrew|keywordspy|libsoft|marg|mobiquo|mysql|nessus|php-?info|racrew|sql|vuln|(web-?|wp-)?(conf\b|config(uration)?)|xertive)(\.php) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{REQUEST_URI} (\.)(7z|ab4|ace|afm|ashx|aspx?|bash|ba?k?|bin|bz2|cfg|cfml?|cgi|conf\b|config|ctl|dat|db|dist|dll|eml|engine|env|et2|exe|fec|fla|git|hg|inc|ini|inv|jsp|log|lqd|make|mbf|mdb|mmw|mny|module|old|one|orig|out|passwd|pdb|phtml|pl|profile|psd|pst|ptdb|pwd|py|qbb|qdf|rar|rdf|save|sdb|sql|sh|soa|svn|swf|swl|swo|swp|stx|tar|tax|tgz|theme|tls|tmd|wow|xtmpl|ya?ml|zlib)$ [NC,OR]" . PHP_EOL;

                    $rules .= "RewriteCond %{REMOTE_HOST} (163data|amazonaws|colocrossing|crimea|g00g1e|justhost|kanagawa|loopia|masterhost|onlinehome|poneytel|sprintdatacenter|reverse.softlayer|safenet|ttnet|woodpecker|wowrack) [NC,OR]" . PHP_EOL;

                    $rules .= "RewriteCond %{HTTP_REFERER} (semalt.com|todaperfeita) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{HTTP_REFERER} (order(\s|%20)by(\s|%20)1--) [NC,OR]" . PHP_EOL;
                    $rules .= "RewriteCond %{HTTP_REFERER} (blue\spill|cocaine|ejaculat|erectile|erections|hoodia|huronriveracres|impotence|levitra|libido|lipitor|phentermin|pro[sz]ac|sandyauer|tramadol|troyhamby|ultram|unicauca|valium|viagra|vicodin|xanax|ypxaieo) [NC,OR]" . PHP_EOL;

                    $rules .= "RewriteCond %{REQUEST_METHOD} ^(connect|debug|move|trace|track) [NC]" . PHP_EOL;

                }

                $rules .= "RewriteRule ^(.*)$ - [F]" . PHP_EOL;
                $rules .= "</IfModule>" . PHP_EOL . PHP_EOL;
            }

            if (HMWP_Classes_Tools::getOption('hmwp_hide_authors') ) {
                $rules .= "<IfModule mod_rewrite.c>" . PHP_EOL;
                $rules .= "RewriteEngine On" . PHP_EOL;
                $rules .= "RewriteCond %{REQUEST_URI} !/wp-admin [NC]" . PHP_EOL;
                $rules .= "RewriteCond %{QUERY_STRING} ^author=\d+ [NC]" . PHP_EOL;
                $rules .= "RewriteRule ^(.*)$ - [L,R=404]" . PHP_EOL;
                $rules .= "</IfModule>" . PHP_EOL . PHP_EOL;
            }
            if (HMWP_Classes_Tools::getOption('hmwp_disable_browsing') ) {
                $rules .= "Options -Indexes" . PHP_EOL;
            }

            if (HMWP_Classes_Tools::getOption('hmwp_detectors_block') ) {
                $rules .= "<IfModule mod_rewrite.c>" . PHP_EOL;
                $rules .= "RewriteEngine On" . PHP_EOL;
                $rules .= "RewriteCond %{HTTP_USER_AGENT} (wpthemedetector|builtwith|isitwp|wapalyzer|mShots|WhatCMS) [NC]" . PHP_EOL;
                $rules .= "RewriteRule ^(.*)$ - [L,R=404]" . PHP_EOL;
                $rules .= "</IfModule>" . PHP_EOL . PHP_EOL;
            }

            if (HMWP_Classes_Tools::getOption('hmwp_hide_unsafe_headers')) {
                $rules .= "<IfModule mod_headers.c>" . PHP_EOL;
                $rules .= 'Header always unset x-powered-by' . PHP_EOL;
                $rules .= 'Header always unset server' . PHP_EOL;
                $rules .= 'ServerSignature Off' . PHP_EOL;
                $rules .= "</IfModule>" . PHP_EOL . PHP_EOL;
            }


            if (HMWP_Classes_Tools::getOption('hmwp_security_header') ) {

                $headers = (array)HMWP_Classes_Tools::getOption('hmwp_security_headers');

                if(!empty($headers)) {
                    $rules .= "<IfModule mod_headers.c>" . PHP_EOL;

                    foreach ($headers as $name => $value) {
                        if ($value <> '') {
                            $rules .= 'Header set ' . $name . ' "' . str_replace('"', '\"', $value) . '"' . PHP_EOL;
                        }
                    }

                    $rules .= "</IfModule>" . PHP_EOL . PHP_EOL;
                }
            }

        } elseif (HMWP_Classes_Tools::isIIS() ) {
            if (HMWP_Classes_Tools::getOption('hmwp_hide_commonfiles') ) {

                $rules .= '
                    <rule name="HideMyWp: block_commonfiles" stopProcessing="true">
                        <match url="^(error_log|wp-config-sample.php|readme.html|license.txt|install.php|wp-config.php|php.ini|bb-config.php)" ignoreCase="false" />
                        <action type="CustomResponse" statusCode="404" statusReason="File Not Found" statusDescription="The requested path was not found" />
                    </rule>';
            }
            if (HMWP_Classes_Tools::getOption('hmwp_hide_authors') ) {
                $rules .= '
                    <rule name="HideMyWp: block_author_id" stopProcessing="true">
                        <match url="(.*)"/>
                        <conditions logicalGrouping="MatchAny">
                          <add input="{QUERY_STRING}" pattern="^author=\d+" negate="false" />
                        </conditions>
                        <action type="CustomResponse" statusCode="404" statusReason="File Not Found" statusDescription="The requested path was not found" />
                    </rule>';
            }
        }

        // Add in the rules
        return $rules . PHP_EOL;
    }

    /**
     * Check if the ADMIN_COOKIE_PATH is present in wp-config.php
     *
     * @return bool
     */
    public function isConfigAdminCookie()
    {
        $config_file = HMWP_Classes_Tools::getConfigFile();

        $lines = file($config_file);

        foreach ( (array)$lines as $line ) {
            if (preg_match("/ADMIN_COOKIE_PATH/", $line) && !preg_match("/^\/\//", trim($line)) ) {
                return true;
            }
        }

        return false;
    }


}
