yf_sitemapxml user module

    public function show()
    {
        header('Content-Type: text/xml', $replace = true);
        $host = ($_GET['host'] ?? null) ?: ($_SERVER['HTTP_HOST'] ?? null); // $_GET['host'] just for debug purposes
        $prod_hosts = main()->PRODUCTION_DOMAIN ?: [];
        if (is_string($prod_hosts)) {
            $prod_hosts = [$prod_hosts];
        }
        if ( ! main()->is_dev() && in_array($host, $prod_hosts)) {
            // Currently we have no sitemap
            // to enable sitemap.xml calls use:
            //			return js_redirect(url('/site_map'));
            $_GET['object'] = 'site_map';
            $_GET['action'] = 'show';
            return module_safe('site_map')->show();
        }
        // Dev domains always return empty sitemap
        $out = '<?xml version="1.0" encoding="UTF-8"?><urlset></urlset>';

        echo $out;
        exit;
    }