private PolicyResult TryAuthorizeUserOnlyPolicy(IPolicy <TUser> policy)
{
Type objectType = policy.GetType();
Type currentType = objectType;
Type baseType;
Dictionary <Type, Type> handlers = options.Handlers;
Type handlerType = null;
while (true)
{
if (handlers.TryGetValue(currentType, out handlerType))
{
break;
}
baseType = currentType.BaseType;
if (IPolicyBaseType.IsAssignableFrom(baseType))
{
currentType = baseType;
}
else
{
break;
}
}
if (handlerType == null)
{
foreach (Type interfaceType in objectType.GetInterfaces())
{
if (IPolicyBaseType.IsAssignableFrom(interfaceType) &&
handlers.TryGetValue(interfaceType, out handlerType))
{
break;
}
}
}
if (handlerType == null)
{
return(PolicyResult.NotHandled);
}
object handler = ActivatorUtilities.CreateInstance(services, handlerType);
TUser user = options.UserAccessor(services);
MethodInfo authorizeMethod = handlerType.GetMethod("OnAuthorization");
return((PolicyResult)authorizeMethod.Invoke(handler, new object[] { user, policy }));
}
