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    public function check()
    {
        if (is_file(FCPATH . "assets/license.key")) {
            $value1 = file_get_contents(FCPATH . "assets/license.key");
            $value1 = get_option("license", $value1);
            $value2 = "431-553-664";
            $value3 = "khdru64d5d2f07292d75676b93999999";
            $value4 = substr($value3, 0, 16);
            $value5 = yACyd($value1, $value2, $value3, $value4);
            $value5 = json_decode($value5);
            $ip = gethostbyname($_SERVER["HTTP_HOST"]);
            if (is_file(FCPATH . "assets/hs.key")) {
                $chkFile = file_get_contents(FCPATH . "assets/hs.key");
                $old1 = yACyd($chkFile, $value2, $value3, $value4);
                $old2 = json_decode($old1);
                $fecha = new DateTime();
                $fecha = $fecha->getTimestamp();
                $time = $old2->time;
                if (isset($time) && $fecha - $time <= 21600) {
                    return true;
                }
            }
            if (isset($value5->domain) && isset($ip)) {
                $ch = curl_init();
                curl_setopt($ch, CURLOPT_URL, "https://serverpanelhost.com/check?p=12345&d=" . $value5->domain . "&i=" . $ip);
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
                curl_setopt($ch, CURLOPT_HEADER, 0);
                $data = curl_exec($ch);
                curl_close($ch);
                if ($data != "1") {
                    return false;
                }
                $value2 = "431-553-664";
                $value3 = "khdru64d5d2f07292d75676b93999999";
                $value4 = substr($value3, 0, 16);
                $fecha = new DateTime();
                $fecha = $fecha->getTimestamp();
                $jsonobj = "{"domain": "" . $value5->domain . "" ,"time": " . $fecha . ","value": true}";
                $test = openssl_encrypt($jsonobj, $value2, $value3, 0, $value4);
                file_put_contents(FCPATH . "assets/server.key", $test);
                return true;
            }
            return false;
        }
        return false;
    }