gistfile1.cs

public ActionResult TryAuth(string openid_identifier)
{
	var openid = new OpenIdRelyingParty();
	var response = openid.GetResponse();
	if(response== null)
	{
		var req = openid.CreateRequest(openid_identifier);
		req.AddExtension(new ClaimsRequest
				            {
				                Email = DemandLevel.Require,
				                Nickname = DemandLevel.Require
				            });
		return req.RedirectingResponse.AsActionResult();
	}
	switch(response.Status)
	{
		case AuthenticationStatus.Authenticated:
			{
				var data = response.GetExtension(typeof(ClaimsResponse)) as ClaimsResponse;
				// data is null here <-----------------------------------------------------------------------------------------
				return View("Index");
			}
	}
	return View("Index");
}