string GetLoginDataToken(string html)
        {
            string token = "";

            var res = Regex.Matches(html, @"(</label>(.*?)<input type=""hidden"" name=""_xfToken"" value="")(.*?)(?="")", RegexOptions.Singleline);

            if (res != null && res.Count > 0)
            {
                token = res[1].ToString();
            }

            Console.WriteLine(res);

            return token;
        }