public ActionResult Callback(string state, string code)
        {
            Google google = TempData["oauth"] as Google;

            google.AccessToken(code);

            byte[] data = google.ConsumeService(
                new Uri("https://www.googleapis.com/plus/v1/people/me"), "GET", null);

            return(Content(Encoding.UTF8.GetString(data), "text/plain"));
        }