/// <summary>
/// Transform the received HTTP cookie to a stored request state instance.
/// </summary>
/// <param name="requestBase">Http Request to get the request state from.</param>
public static StoredRequestState GetStoredRequestState(this HttpRequestBase requestBase)
{
if (requestBase == null)
{
throw new ArgumentNullException("requestBase");
}
return(Deserialize(Decrypt(CookieHandler.Read())));
}