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proxy.go
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proxy.go
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package rolebinding
import (
"context"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metainternal "k8s.io/apimachinery/pkg/apis/meta/internalversion"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
apirequest "k8s.io/apiserver/pkg/endpoints/request"
"k8s.io/apiserver/pkg/registry/rest"
rbacv1 "k8s.io/client-go/kubernetes/typed/rbac/v1"
restclient "k8s.io/client-go/rest"
"k8s.io/kubernetes/pkg/printers"
printerstorage "k8s.io/kubernetes/pkg/printers/storage"
authorizationapi "github.com/openshift/origin/pkg/authorization/apis/authorization"
"github.com/openshift/origin/pkg/authorization/apiserver/registry/util"
authclient "github.com/openshift/origin/pkg/client/impersonatingclient"
printersinternal "github.com/openshift/origin/pkg/printers/internalversion"
utilregistry "github.com/openshift/origin/pkg/util/registry"
)
type REST struct {
privilegedClient restclient.Interface
rest.TableConvertor
}
var _ rest.Lister = &REST{}
var _ rest.Getter = &REST{}
var _ rest.CreaterUpdater = &REST{}
var _ rest.GracefulDeleter = &REST{}
var _ rest.Scoper = &REST{}
func NewREST(client restclient.Interface) utilregistry.NoWatchStorage {
return utilregistry.WrapNoWatchStorageError(&REST{
privilegedClient: client,
TableConvertor: printerstorage.TableConvertor{TablePrinter: printers.NewTablePrinter().With(printersinternal.AddHandlers)},
})
}
func (s *REST) New() runtime.Object {
return &authorizationapi.RoleBinding{}
}
func (s *REST) NewList() runtime.Object {
return &authorizationapi.RoleBindingList{}
}
func (s *REST) NamespaceScoped() bool {
return true
}
func (s *REST) List(ctx context.Context, options *metainternal.ListOptions) (runtime.Object, error) {
client, err := s.getImpersonatingClient(ctx)
if err != nil {
return nil, err
}
optv1 := metav1.ListOptions{}
if err := metainternal.Convert_internalversion_ListOptions_To_v1_ListOptions(options, &optv1, nil); err != nil {
return nil, err
}
bindings, err := client.List(optv1)
if err != nil {
return nil, err
}
ret := &authorizationapi.RoleBindingList{ListMeta: bindings.ListMeta}
for _, curr := range bindings.Items {
role, err := util.RoleBindingFromRBAC(&curr)
if err != nil {
return nil, err
}
ret.Items = append(ret.Items, *role)
}
return ret, nil
}
func (s *REST) Get(ctx context.Context, name string, options *metav1.GetOptions) (runtime.Object, error) {
client, err := s.getImpersonatingClient(ctx)
if err != nil {
return nil, err
}
ret, err := client.Get(name, *options)
if err != nil {
return nil, err
}
binding, err := util.RoleBindingFromRBAC(ret)
if err != nil {
return nil, err
}
return binding, nil
}
func (s *REST) Delete(ctx context.Context, name string, options *metav1.DeleteOptions) (runtime.Object, bool, error) {
client, err := s.getImpersonatingClient(ctx)
if err != nil {
return nil, false, err
}
if err := client.Delete(name, options); err != nil {
return nil, false, err
}
return &metav1.Status{Status: metav1.StatusSuccess}, true, nil
}
func (s *REST) Create(ctx context.Context, obj runtime.Object, _ rest.ValidateObjectFunc, options *metav1.CreateOptions) (runtime.Object, error) {
client, err := s.getImpersonatingClient(ctx)
if err != nil {
return nil, err
}
rb := obj.(*authorizationapi.RoleBinding)
// Default the namespace if it is not specified so conversion does not error
// Normally this is done during the REST strategy but we avoid those here to keep the proxies simple
if ns, ok := apirequest.NamespaceFrom(ctx); ok && len(ns) > 0 && len(rb.Namespace) == 0 && len(rb.RoleRef.Namespace) > 0 {
deepcopiedObj := rb.DeepCopy()
deepcopiedObj.Namespace = ns
rb = deepcopiedObj
}
convertedObj, err := util.RoleBindingToRBAC(rb)
if err != nil {
return nil, err
}
ret, err := client.Create(convertedObj)
if err != nil {
return nil, err
}
binding, err := util.RoleBindingFromRBAC(ret)
if err != nil {
return nil, err
}
return binding, nil
}
func (s *REST) Update(ctx context.Context, name string, objInfo rest.UpdatedObjectInfo, _ rest.ValidateObjectFunc, _ rest.ValidateObjectUpdateFunc, forceAllowCreate bool, options *metav1.UpdateOptions) (runtime.Object, bool, error) {
client, err := s.getImpersonatingClient(ctx)
if err != nil {
return nil, false, err
}
old, err := client.Get(name, metav1.GetOptions{})
if err != nil {
return nil, false, err
}
oldRoleBinding, err := util.RoleBindingFromRBAC(old)
if err != nil {
return nil, false, err
}
obj, err := objInfo.UpdatedObject(ctx, oldRoleBinding)
if err != nil {
return nil, false, err
}
updatedRoleBinding, err := util.RoleBindingToRBAC(obj.(*authorizationapi.RoleBinding))
if err != nil {
return nil, false, err
}
ret, err := client.Update(updatedRoleBinding)
if err != nil {
return nil, false, err
}
role, err := util.RoleBindingFromRBAC(ret)
if err != nil {
return nil, false, err
}
return role, false, err
}
func (s *REST) getImpersonatingClient(ctx context.Context) (rbacv1.RoleBindingInterface, error) {
namespace, ok := apirequest.NamespaceFrom(ctx)
if !ok {
return nil, apierrors.NewBadRequest("namespace parameter required")
}
rbacClient, err := authclient.NewImpersonatingRBACFromContext(ctx, s.privilegedClient)
if err != nil {
return nil, err
}
return rbacClient.RoleBindings(namespace), nil
}