/
proxy.go
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/
proxy.go
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package proxy
import (
"context"
"fmt"
kerrors "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"
"k8s.io/apimachinery/pkg/watch"
apirequest "k8s.io/apiserver/pkg/endpoints/request"
"k8s.io/apiserver/pkg/registry/rest"
corev1client "k8s.io/client-go/kubernetes/typed/core/v1"
"k8s.io/kubernetes/pkg/printers"
printerstorage "k8s.io/kubernetes/pkg/printers/storage"
"github.com/openshift/api/project"
"github.com/openshift/origin/pkg/api/apihelpers"
authorizationapi "github.com/openshift/origin/pkg/authorization/apis/authorization"
"github.com/openshift/origin/pkg/authorization/authorizer/scope"
printersinternal "github.com/openshift/origin/pkg/printers/internalversion"
projectapi "github.com/openshift/origin/pkg/project/apis/project"
projectregistry "github.com/openshift/origin/pkg/project/apiserver/registry/project"
projectauth "github.com/openshift/origin/pkg/project/auth"
projectcache "github.com/openshift/origin/pkg/project/cache"
projectutil "github.com/openshift/origin/pkg/project/util"
)
type REST struct {
// client can modify Kubernetes namespaces
client corev1client.NamespaceInterface
// lister can enumerate project lists that enforce policy
lister projectauth.Lister
// Allows extended behavior during creation, required
createStrategy rest.RESTCreateStrategy
// Allows extended behavior during updates, required
updateStrategy rest.RESTUpdateStrategy
authCache *projectauth.AuthorizationCache
projectCache *projectcache.ProjectCache
rest.TableConvertor
}
var _ rest.Lister = &REST{}
var _ rest.CreaterUpdater = &REST{}
var _ rest.GracefulDeleter = &REST{}
var _ rest.Watcher = &REST{}
var _ rest.Scoper = &REST{}
// NewREST returns a RESTStorage object that will work against Project resources
func NewREST(client corev1client.NamespaceInterface, lister projectauth.Lister, authCache *projectauth.AuthorizationCache, projectCache *projectcache.ProjectCache) *REST {
return &REST{
client: client,
lister: lister,
createStrategy: projectregistry.Strategy,
updateStrategy: projectregistry.Strategy,
authCache: authCache,
projectCache: projectCache,
TableConvertor: printerstorage.TableConvertor{TablePrinter: printers.NewTablePrinter().With(printersinternal.AddHandlers)},
}
}
// New returns a new Project
func (s *REST) New() runtime.Object {
return &projectapi.Project{}
}
// NewList returns a new ProjectList
func (*REST) NewList() runtime.Object {
return &projectapi.ProjectList{}
}
func (s *REST) NamespaceScoped() bool {
return false
}
// List retrieves a list of Projects that match label.
func (s *REST) List(ctx context.Context, options *metainternal.ListOptions) (runtime.Object, error) {
user, ok := apirequest.UserFrom(ctx)
if !ok {
return nil, kerrors.NewForbidden(project.Resource("project"), "", fmt.Errorf("unable to list projects without a user on the context"))
}
labelSelector, _ := apihelpers.InternalListOptionsToSelectors(options)
namespaceList, err := s.lister.List(user, labelSelector)
if err != nil {
return nil, err
}
return projectutil.ConvertNamespaceList(namespaceList), nil
}
func (s *REST) Watch(ctx context.Context, options *metainternal.ListOptions) (watch.Interface, error) {
if ctx == nil {
return nil, fmt.Errorf("Context is nil")
}
userInfo, exists := apirequest.UserFrom(ctx)
if !exists {
return nil, fmt.Errorf("no user")
}
includeAllExistingProjects := (options != nil) && options.ResourceVersion == "0"
allowedNamespaces, err := scope.ScopesToVisibleNamespaces(userInfo.GetExtra()[authorizationapi.ScopesKey], s.authCache.GetClusterRoleLister(), true)
if err != nil {
return nil, err
}
m := projectutil.MatchProject(apihelpers.InternalListOptionsToSelectors(options))
watcher := projectauth.NewUserProjectWatcher(userInfo, allowedNamespaces, s.projectCache, s.authCache, includeAllExistingProjects, m)
s.authCache.AddWatcher(watcher)
go watcher.Watch()
return watcher, nil
}
var _ = rest.Getter(&REST{})
// Get retrieves a Project by name
func (s *REST) Get(ctx context.Context, name string, options *metav1.GetOptions) (runtime.Object, error) {
opts := metav1.GetOptions{}
if options != nil {
opts = *options
}
namespace, err := s.client.Get(name, opts)
if err != nil {
return nil, err
}
return projectutil.ConvertNamespaceFromExternal(namespace), nil
}
var _ = rest.Creater(&REST{})
// Create registers the given Project.
func (s *REST) Create(ctx context.Context, obj runtime.Object, creationValidation rest.ValidateObjectFunc, options *metav1.CreateOptions) (runtime.Object, error) {
projectObj, ok := obj.(*projectapi.Project)
if !ok {
return nil, fmt.Errorf("not a project: %#v", obj)
}
rest.FillObjectMetaSystemFields(&projectObj.ObjectMeta)
s.createStrategy.PrepareForCreate(ctx, obj)
if errs := s.createStrategy.Validate(ctx, obj); len(errs) > 0 {
return nil, kerrors.NewInvalid(project.Kind("Project"), projectObj.Name, errs)
}
if err := creationValidation(projectObj.DeepCopyObject()); err != nil {
return nil, err
}
namespace, err := s.client.Create(projectutil.ConvertProjectToExternal(projectObj))
if err != nil {
return nil, err
}
return projectutil.ConvertNamespaceFromExternal(namespace), nil
}
var _ = rest.Updater(&REST{})
func (s *REST) Update(ctx context.Context, name string, objInfo rest.UpdatedObjectInfo, creationValidation rest.ValidateObjectFunc, updateValidation rest.ValidateObjectUpdateFunc, forceAllowCreate bool, options *metav1.UpdateOptions) (runtime.Object, bool, error) {
oldObj, err := s.Get(ctx, name, &metav1.GetOptions{})
if err != nil {
return nil, false, err
}
obj, err := objInfo.UpdatedObject(ctx, oldObj)
if err != nil {
return nil, false, err
}
projectObj, ok := obj.(*projectapi.Project)
if !ok {
return nil, false, fmt.Errorf("not a project: %#v", obj)
}
s.updateStrategy.PrepareForUpdate(ctx, obj, oldObj)
if errs := s.updateStrategy.ValidateUpdate(ctx, obj, oldObj); len(errs) > 0 {
return nil, false, kerrors.NewInvalid(project.Kind("Project"), projectObj.Name, errs)
}
if err := updateValidation(obj.DeepCopyObject(), oldObj.DeepCopyObject()); err != nil {
return nil, false, err
}
namespace, err := s.client.Update(projectutil.ConvertProjectToExternal(projectObj))
if err != nil {
return nil, false, err
}
return projectutil.ConvertNamespaceFromExternal(namespace), false, nil
}
var _ = rest.GracefulDeleter(&REST{})
// Delete deletes a Project specified by its name
func (s *REST) Delete(ctx context.Context, name string, options *metav1.DeleteOptions) (runtime.Object, bool, error) {
return &metav1.Status{Status: metav1.StatusSuccess}, false, s.client.Delete(name, nil)
}