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https://github.com/k3s-io/k3s.git
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73 lines
2.3 KiB
Go
73 lines
2.3 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package admission
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import (
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/api/meta"
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"k8s.io/apimachinery/pkg/runtime/schema"
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utilerrors "k8s.io/apimachinery/pkg/util/errors"
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)
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func extractResourceName(a Attributes) (name string, resource schema.GroupResource, err error) {
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resource = a.GetResource().GroupResource()
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if len(a.GetName()) > 0 {
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return a.GetName(), resource, nil
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}
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name = "Unknown"
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obj := a.GetObject()
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if obj != nil {
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accessor, err := meta.Accessor(obj)
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if err != nil {
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// not all object have ObjectMeta. If we don't, return a name with a slash (always illegal)
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return "Unknown/errorGettingName", resource, nil
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}
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// this is necessary because name object name generation has not occurred yet
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if len(accessor.GetName()) > 0 {
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name = accessor.GetName()
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} else if len(accessor.GetGenerateName()) > 0 {
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name = accessor.GetGenerateName()
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}
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}
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return name, resource, nil
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}
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// NewForbidden is a utility function to return a well-formatted admission control error response
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func NewForbidden(a Attributes, internalError error) error {
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// do not double wrap an error of same type
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if apierrors.IsForbidden(internalError) {
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return internalError
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}
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name, resource, err := extractResourceName(a)
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if err != nil {
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return apierrors.NewInternalError(utilerrors.NewAggregate([]error{internalError, err}))
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}
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return apierrors.NewForbidden(resource, name, internalError)
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}
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// NewNotFound is a utility function to return a well-formatted admission control error response
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func NewNotFound(a Attributes) error {
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name, resource, err := extractResourceName(a)
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if err != nil {
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return apierrors.NewInternalError(err)
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}
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return apierrors.NewNotFound(resource, name)
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}
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