func GetAuthorizerAttributes(ctx request.Context) (authorizer.Attributes, error) {
	attribs := authorizer.AttributesRecord{}

	user, ok := request.UserFrom(ctx)
	if ok {
		attribs.User = user
	}

	requestInfo, found := request.RequestInfoFrom(ctx)
	if !found {
		return nil, errors.New("no RequestInfo found in the context")
	}

	// Start with common attributes that apply to resource and non-resource requests
	attribs.ResourceRequest = requestInfo.IsResourceRequest
	attribs.Path = requestInfo.Path
	attribs.Verb = requestInfo.Verb

	attribs.APIGroup = requestInfo.APIGroup
	attribs.APIVersion = requestInfo.APIVersion
	attribs.Resource = requestInfo.Resource
	attribs.Subresource = requestInfo.Subresource
	attribs.Namespace = requestInfo.Namespace
	attribs.Name = requestInfo.Name

	return &attribs, nil
}
// BindingAuthorized returns true if the user associated with the context is explicitly authorized to bind the specified roleRef
func BindingAuthorized(ctx genericapirequest.Context, roleRef rbac.RoleRef, bindingNamespace string, a authorizer.Authorizer) bool {
	if a == nil {
		return false
	}

	user, ok := genericapirequest.UserFrom(ctx)
	if !ok {
		return false
	}

	attrs := authorizer.AttributesRecord{
		User: user,
		Verb: "bind",
		// check against the namespace where the binding is being created (or the empty namespace for clusterrolebindings).
		// this allows delegation to bind particular clusterroles in rolebindings within particular namespaces,
		// and to authorize binding a clusterrole across all namespaces in a clusterrolebinding.
		Namespace:       bindingNamespace,
		ResourceRequest: true,
	}

	// This occurs after defaulting and conversion, so values pulled from the roleRef won't change
	// Invalid APIGroup or Name values will fail validation
	switch roleRef.Kind {
	case "ClusterRole":
		attrs.APIGroup = roleRef.APIGroup
		attrs.Resource = "clusterroles"
		attrs.Name = roleRef.Name
	case "Role":
		attrs.APIGroup = roleRef.APIGroup
		attrs.Resource = "roles"
		attrs.Name = roleRef.Name
	default:
		return false
	}

	ok, _, err := a.Authorize(attrs)
	if err != nil {
		utilruntime.HandleError(fmt.Errorf(
			"error authorizing user %#v to bind %#v in namespace %s: %v",
			roleRef, bindingNamespace, user, err,
		))
	}
	return ok
}