.keys();
        let $_GET = {}
        for (let key of url_keys) $_GET[key] = url_params.get(key);
    </script>
    <script>
        function encodeBase64(file) {
            return new Promise(function (resolve, reject) {
                let imgReader = new FileReader();
                imgReader.onloadend = function () {
                    resolve(imgReader.result.toString());
                }
                imgReader.readAsDataURL(file);
            });
        }

        function base64ToHex(str) {