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115 lines
3.4 KiB
Go
115 lines
3.4 KiB
Go
/*
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Copyright 2017 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 selfsubjectrulesreview
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import (
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"context"
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"fmt"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apiserver/pkg/authorization/authorizer"
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genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
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"k8s.io/apiserver/pkg/registry/rest"
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authorizationapi "k8s.io/kubernetes/pkg/apis/authorization"
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)
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// REST implements a RESTStorage for selfsubjectrulesreview.
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type REST struct {
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ruleResolver authorizer.RuleResolver
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}
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// NewREST returns a RESTStorage object that will work against selfsubjectrulesreview.
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func NewREST(ruleResolver authorizer.RuleResolver) *REST {
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return &REST{ruleResolver}
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}
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// NamespaceScoped fulfill rest.Scoper
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func (r *REST) NamespaceScoped() bool {
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return false
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}
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// New creates a new selfsubjectrulesreview object.
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func (r *REST) New() runtime.Object {
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return &authorizationapi.SelfSubjectRulesReview{}
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}
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// Create attempts to get self subject rules in specific namespace.
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func (r *REST) Create(ctx context.Context, obj runtime.Object, createValidation rest.ValidateObjectFunc, options *metav1.CreateOptions) (runtime.Object, error) {
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selfSRR, ok := obj.(*authorizationapi.SelfSubjectRulesReview)
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if !ok {
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return nil, apierrors.NewBadRequest(fmt.Sprintf("not a SelfSubjectRulesReview: %#v", obj))
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}
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user, ok := genericapirequest.UserFrom(ctx)
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if !ok {
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return nil, apierrors.NewBadRequest("no user present on request")
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}
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namespace := selfSRR.Spec.Namespace
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if namespace == "" {
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return nil, apierrors.NewBadRequest("no namespace on request")
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}
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if createValidation != nil {
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if err := createValidation(ctx, obj.DeepCopyObject()); err != nil {
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return nil, err
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}
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}
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resourceInfo, nonResourceInfo, incomplete, err := r.ruleResolver.RulesFor(user, namespace)
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ret := &authorizationapi.SelfSubjectRulesReview{
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Status: authorizationapi.SubjectRulesReviewStatus{
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ResourceRules: getResourceRules(resourceInfo),
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NonResourceRules: getNonResourceRules(nonResourceInfo),
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Incomplete: incomplete,
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},
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}
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if err != nil {
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ret.Status.EvaluationError = err.Error()
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}
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return ret, nil
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}
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func getResourceRules(infos []authorizer.ResourceRuleInfo) []authorizationapi.ResourceRule {
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rules := make([]authorizationapi.ResourceRule, len(infos))
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for i, info := range infos {
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rules[i] = authorizationapi.ResourceRule{
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Verbs: info.GetVerbs(),
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APIGroups: info.GetAPIGroups(),
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Resources: info.GetResources(),
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ResourceNames: info.GetResourceNames(),
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}
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}
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return rules
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}
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func getNonResourceRules(infos []authorizer.NonResourceRuleInfo) []authorizationapi.NonResourceRule {
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rules := make([]authorizationapi.NonResourceRule, len(infos))
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for i, info := range infos {
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rules[i] = authorizationapi.NonResourceRule{
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Verbs: info.GetVerbs(),
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NonResourceURLs: info.GetNonResourceURLs(),
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}
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}
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return rules
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}
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