mirror of https://github.com/k3s-io/k3s
86 lines
2.9 KiB
Go
86 lines
2.9 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package localsubjectaccessreview
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
kapierrors "k8s.io/apimachinery/pkg/api/errors"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
"k8s.io/apiserver/pkg/authorization/authorizer"
|
|
genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
|
|
"k8s.io/apiserver/pkg/registry/rest"
|
|
authorizationapi "k8s.io/kubernetes/pkg/apis/authorization"
|
|
authorizationvalidation "k8s.io/kubernetes/pkg/apis/authorization/validation"
|
|
authorizationutil "k8s.io/kubernetes/pkg/registry/authorization/util"
|
|
)
|
|
|
|
type REST struct {
|
|
authorizer authorizer.Authorizer
|
|
}
|
|
|
|
func NewREST(authorizer authorizer.Authorizer) *REST {
|
|
return &REST{authorizer}
|
|
}
|
|
|
|
func (r *REST) NamespaceScoped() bool {
|
|
return true
|
|
}
|
|
|
|
func (r *REST) New() runtime.Object {
|
|
return &authorizationapi.LocalSubjectAccessReview{}
|
|
}
|
|
|
|
func (r *REST) Create(ctx context.Context, obj runtime.Object, createValidation rest.ValidateObjectFunc, options *metav1.CreateOptions) (runtime.Object, error) {
|
|
localSubjectAccessReview, ok := obj.(*authorizationapi.LocalSubjectAccessReview)
|
|
if !ok {
|
|
return nil, kapierrors.NewBadRequest(fmt.Sprintf("not a LocaLocalSubjectAccessReview: %#v", obj))
|
|
}
|
|
if errs := authorizationvalidation.ValidateLocalSubjectAccessReview(localSubjectAccessReview); len(errs) > 0 {
|
|
return nil, kapierrors.NewInvalid(authorizationapi.Kind(localSubjectAccessReview.Kind), "", errs)
|
|
}
|
|
namespace := genericapirequest.NamespaceValue(ctx)
|
|
if len(namespace) == 0 {
|
|
return nil, kapierrors.NewBadRequest(fmt.Sprintf("namespace is required on this type: %v", namespace))
|
|
}
|
|
if namespace != localSubjectAccessReview.Namespace {
|
|
return nil, kapierrors.NewBadRequest(fmt.Sprintf("spec.resourceAttributes.namespace must match namespace: %v", namespace))
|
|
}
|
|
|
|
if createValidation != nil {
|
|
if err := createValidation(obj.DeepCopyObject()); err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
authorizationAttributes := authorizationutil.AuthorizationAttributesFrom(localSubjectAccessReview.Spec)
|
|
decision, reason, evaluationErr := r.authorizer.Authorize(authorizationAttributes)
|
|
|
|
localSubjectAccessReview.Status = authorizationapi.SubjectAccessReviewStatus{
|
|
Allowed: (decision == authorizer.DecisionAllow),
|
|
Denied: (decision == authorizer.DecisionDeny),
|
|
Reason: reason,
|
|
}
|
|
if evaluationErr != nil {
|
|
localSubjectAccessReview.Status.EvaluationError = evaluationErr.Error()
|
|
}
|
|
|
|
return localSubjectAccessReview, nil
|
|
}
|