public ActionResult SaveFbCode()
{
 if (Request.Params.AllKeys.Contains("code"))
 {
 var code = Request.Params["code"];
 if (ProcessFbCode(code))
 {
 return RedirectToAction("Index");
 }
 }
 return View("CantInitialize");
}
protected bool ProcessFbCode(string code)
{
 if (fbProvider.GetAccessToken(code, "http://" + HostName + "/Social/SaveFbCode"))
 {
 var jObj = fbProvider.GetUserInfo();
 var fbUserInfo = JsonConvert.DeserializeObject<FbUserInfo>(jObj.ToString());
var fbAccess = new FbAccessToken()
 {
 AccessToken = fbProvider.AccessToken
 };
 var jsonFbAccess = JsonConvert.SerializeObject(fbAccess);
 var fbSocial = currentUser.Socials.Where(p => p.Provider == "facebook").FirstOrDefault();
 if (fbSocial == null)
 {
 fbSocial = new Models.Social()
 {
 UserID = currentUser.ID,
 JsonResource = jsonFbAccess.ToString(),
 Provider = "facebook",
 UserInfo = jObj.ToString()
 };
 repository.CreateSocial(fbSocial);
 }
 else
 {
 fbSocial.UserInfo = jObj.ToString();
 repository.UpdateSocial(fbSocial);
 }
 return true;
 }
 return false;
}