Golang errors.IsForbidden函數代碼示例

func TestAuthorizationRestrictedAccessForProjectAdmins(t *testing.T) {
	_, clusterAdminKubeConfig, err := testutil.StartTestMaster()
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	clusterAdminClient, err := testutil.GetClusterAdminClient(clusterAdminKubeConfig)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	clusterAdminClientConfig, err := testutil.GetClusterAdminClientConfig(clusterAdminKubeConfig)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	haroldClient, err := testutil.CreateNewProject(clusterAdminClient, *clusterAdminClientConfig, "hammer-project", "harold")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	markClient, err := testutil.CreateNewProject(clusterAdminClient, *clusterAdminClientConfig, "mallet-project", "mark")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	_, err = haroldClient.DeploymentConfigs("hammer-project").List(labels.Everything(), fields.Everything())
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	_, err = markClient.DeploymentConfigs("hammer-project").List(labels.Everything(), fields.Everything())
	if (err == nil) || !kapierror.IsForbidden(err) {
		t.Fatalf("unexpected error: %v", err)
	}

	// projects are a special case where a get of a project actually sets a namespace.  Make sure that
	// the namespace is properly special cased and set for authorization rules
	_, err = haroldClient.Projects().Get("hammer-project")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	_, err = markClient.Projects().Get("hammer-project")
	if (err == nil) || !kapierror.IsForbidden(err) {
		t.Fatalf("unexpected error: %v", err)
	}

	// wait for the project authorization cache to catch the change.  It is on a one second period
	waitForProject(t, haroldClient, "hammer-project", 1*time.Second, 10)
	waitForProject(t, markClient, "mallet-project", 1*time.Second, 10)
}

func doServiceAccountAPIRequests(t *testing.T, c *client.Client, ns string, authenticated bool, canRead bool, canWrite bool) {
	testSecret := &api.Secret{
		ObjectMeta: api.ObjectMeta{Name: "testSecret"},
		Data:       map[string][]byte{"test": []byte("data")},
	}

	readOps := []testOperation{
		func() error { _, err := c.Secrets(ns).List(labels.Everything(), fields.Everything()); return err },
		func() error { _, err := c.Pods(ns).List(labels.Everything(), fields.Everything()); return err },
	}
	writeOps := []testOperation{
		func() error { _, err := c.Secrets(ns).Create(testSecret); return err },
		func() error { return c.Secrets(ns).Delete(testSecret.Name) },
	}

	for _, op := range readOps {
		err := op()
		unauthorizedError := errors.IsUnauthorized(err)
		forbiddenError := errors.IsForbidden(err)

		switch {
		case !authenticated && !unauthorizedError:
			t.Fatalf("expected unauthorized error, got %v", err)
		case authenticated && unauthorizedError:
			t.Fatalf("unexpected unauthorized error: %v", err)
		case authenticated && canRead && forbiddenError:
			t.Fatalf("unexpected forbidden error: %v", err)
		case authenticated && !canRead && !forbiddenError:
			t.Fatalf("expected forbidden error, got: %v", err)
		}
	}

	for _, op := range writeOps {
		err := op()
		unauthorizedError := errors.IsUnauthorized(err)
		forbiddenError := errors.IsForbidden(err)

		switch {
		case !authenticated && !unauthorizedError:
			t.Fatalf("expected unauthorized error, got %v", err)
		case authenticated && unauthorizedError:
			t.Fatalf("unexpected unauthorized error: %v", err)
		case authenticated && canWrite && forbiddenError:
			t.Fatalf("unexpected forbidden error: %v", err)
		case authenticated && !canWrite && !forbiddenError:
			t.Fatalf("expected forbidden error, got: %v", err)
		}
	}
}

// Resolve searches for a template and returns a match with the object representation
func (r TemplateResolver) Resolve(value string) (*ComponentMatch, error) {
	checked := util.NewStringSet()

	for _, namespace := range r.Namespaces {
		if checked.Has(namespace) {
			continue
		}

		checked.Insert(namespace)

		glog.V(4).Infof("checking template %s/%s", namespace, value)
		repo, err := r.Client.Templates(namespace).Get(value)
		if err != nil {
			if errors.IsNotFound(err) || errors.IsForbidden(err) {
				continue
			}
			return nil, err
		}

		return &ComponentMatch{
			Value:       value,
			Argument:    fmt.Sprintf("--template=%q", value),
			Name:        value,
			Description: fmt.Sprintf("Template %s in project %s", repo.Name, repo.Namespace),
			Score:       0,
			Template:    repo,
		}, nil
	}
	return nil, ErrNoMatch{value: value}
}

// Resolve will attempt to find an imagestream with a name that matches the passed in value
func (r ImageStreamResolver) Resolve(value string) (*ComponentMatch, error) {
	ref, err := imageapi.ParseDockerImageReference(value)
	if err != nil || len(ref.Registry) != 0 {
		return nil, fmt.Errorf("image repositories must be of the form [<namespace>/]<name>[:<tag>|@<digest>]")
	}
	namespaces := r.Namespaces
	if len(ref.Namespace) != 0 {
		namespaces = []string{ref.Namespace}
	}
	searchTag := ref.Tag
	if len(searchTag) == 0 {
		searchTag = imageapi.DefaultImageTag
	}
	for _, namespace := range namespaces {
		glog.V(4).Infof("checking ImageStream %s/%s with ref %q", namespace, ref.Name, searchTag)
		repo, err := r.Client.ImageStreams(namespace).Get(ref.Name)
		if err != nil {
			if errors.IsNotFound(err) || errors.IsForbidden(err) {
				continue
			}
			return nil, err
		}
		ref.Namespace = namespace
		latest := imageapi.LatestTaggedImage(repo, searchTag)
		if latest == nil {
			// continue searching in the next namespace
			glog.V(2).Infof("no image recorded for %s/%s:%s", repo.Namespace, repo.Name, searchTag)
			continue
		}
		imageStreamImage, err := r.ImageStreamImages.ImageStreamImages(namespace).Get(ref.Name, latest.Image)
		if err != nil {
			if errors.IsNotFound(err) {
				// continue searching in the next namespace
				glog.V(2).Infof("tag %q is set, but image %q has been removed", searchTag, latest.Image)
				continue
			}
			return nil, err
		}
		imageData := imageStreamImage.Image

		ref.Registry = ""
		return &ComponentMatch{
			Value:       ref.String(),
			Argument:    fmt.Sprintf("--image=%q", ref.String()),
			Name:        ref.Name,
			Description: fmt.Sprintf("Image repository %s (tag %q) in project %s, tracks %q", repo.Name, searchTag, repo.Namespace, repo.Status.DockerImageRepository),
			Builder:     IsBuilderImage(&imageData.DockerImageMetadata),
			Score:       0,

			ImageStream: repo,
			Image:       &imageData.DockerImageMetadata,
			ImageTag:    searchTag,
		}, nil
	}
	return nil, ErrNoMatch{value: value}
}

func (d *ProjectStatusDescriber) MakeGraph(namespace string) (osgraph.Graph, util.StringSet, error) {
	g := osgraph.New()

	loaders := []GraphLoader{
		&serviceLoader{namespace: namespace, lister: d.K},
		&serviceAccountLoader{namespace: namespace, lister: d.K},
		&secretLoader{namespace: namespace, lister: d.K},
		&rcLoader{namespace: namespace, lister: d.K},
		&podLoader{namespace: namespace, lister: d.K},
		&bcLoader{namespace: namespace, lister: d.C},
		&buildLoader{namespace: namespace, lister: d.C},
		&isLoader{namespace: namespace, lister: d.C},
		&dcLoader{namespace: namespace, lister: d.C},
	}
	loadingFuncs := []func() error{}
	for _, loader := range loaders {
		loadingFuncs = append(loadingFuncs, loader.Load)
	}

	forbiddenResources := util.StringSet{}
	if errs := parallel.Run(loadingFuncs...); len(errs) > 0 {
		actualErrors := []error{}
		for _, err := range errs {
			if kapierrors.IsForbidden(err) {
				forbiddenErr := err.(*kapierrors.StatusError)
				if (forbiddenErr.Status().Details != nil) && (len(forbiddenErr.Status().Details.Kind) > 0) {
					forbiddenResources.Insert(forbiddenErr.Status().Details.Kind)
				}
				continue
			}
			actualErrors = append(actualErrors, err)
		}

		if len(actualErrors) > 0 {
			return g, forbiddenResources, utilerrors.NewAggregate(actualErrors)
		}
	}

	for _, loader := range loaders {
		loader.AddToGraph(g)
	}

	kubeedges.AddAllExposedPodTemplateSpecEdges(g)
	kubeedges.AddAllExposedPodEdges(g)
	kubeedges.AddAllManagedByRCPodEdges(g)
	kubeedges.AddAllRequestedServiceAccountEdges(g)
	kubeedges.AddAllMountableSecretEdges(g)
	kubeedges.AddAllMountedSecretEdges(g)
	buildedges.AddAllInputOutputEdges(g)
	buildedges.AddAllBuildEdges(g)
	deployedges.AddAllTriggerEdges(g)
	deployedges.AddAllDeploymentEdges(g)
	imageedges.AddAllImageStreamRefEdges(g)

	return g, forbiddenResources, nil
}

func verifyOpenShiftUser(client *client.Client) error {
	if _, err := client.Users().Get("~"); err != nil {
		log.Errorf("Get user failed with error: %s", err)
		if kerrors.IsUnauthorized(err) || kerrors.IsForbidden(err) {
			return ErrOpenShiftAccessDenied
		}
		return err
	}

	return nil
}

func TestBootstrapPolicyOverwritePolicyCommand(t *testing.T) {
	masterConfig, clusterAdminKubeConfig, err := testutil.StartTestMaster()
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	client, err := testutil.GetClusterAdminClient(clusterAdminKubeConfig)
	if err != nil {
		t.Errorf("unexpected error: %v", err)
	}

	if err := client.ClusterPolicies().Delete(authorizationapi.PolicyName); err != nil {
		t.Errorf("unexpected error: %v", err)
	}

	// after the policy is deleted, we must wait for it to be cleared from the policy cache
	err = wait.Poll(10*time.Millisecond, 10*time.Second, func() (bool, error) {
		_, err := client.ClusterPolicies().List(labels.Everything(), fields.Everything())
		if err == nil {
			return false, nil
		}
		if !kapierror.IsForbidden(err) {
			t.Errorf("unexpected error: %v", err)
		}
		return true, nil
	})
	if err != nil {
		t.Errorf("timeout: %v", err)
	}

	etcdClient, err := etcd.GetAndTestEtcdClient(masterConfig.EtcdClientInfo)
	if err != nil {
		t.Errorf("unexpected error: %v", err)
	}

	etcdHelper, err := origin.NewEtcdStorage(etcdClient, masterConfig.EtcdStorageConfig.OpenShiftStorageVersion, masterConfig.EtcdStorageConfig.OpenShiftStoragePrefix)
	if err != nil {
		t.Errorf("unexpected error: %v", err)
	}

	if err := admin.OverwriteBootstrapPolicy(etcdHelper, masterConfig.PolicyConfig.BootstrapPolicyFile, admin.CreateBootstrapPolicyFileFullCommand, true, ioutil.Discard); err != nil {
		t.Errorf("unexpected error: %v", err)
	}

	if _, err := client.ClusterPolicies().List(labels.Everything(), fields.Everything()); err != nil {
		t.Errorf("unexpected error: %v", err)
	}
}

func TestErrors(t *testing.T) {
	o := testclient.NewObjects(kapi.Scheme, kapi.Scheme)
	o.Add(&kapi.List{
		Items: []runtime.Object{
			&(errors.NewNotFound("DeploymentConfigList", "").(*errors.StatusError).ErrStatus),
			&(errors.NewForbidden("DeploymentConfigList", "", nil).(*errors.StatusError).ErrStatus),
		},
	})
	oc, _ := NewFixtureClients(o)
	_, err := oc.DeploymentConfigs("test").List(labels.Everything(), fields.Everything())
	if !errors.IsNotFound(err) {
		t.Fatalf("unexpected error: %v", err)
	}
	t.Logf("error: %#v", err.(*errors.StatusError).Status())
	_, err = oc.DeploymentConfigs("test").List(labels.Everything(), fields.Everything())
	if !errors.IsForbidden(err) {
		t.Fatalf("unexpected error: %v", err)
	}
}

func verifyPruneAccess(client *client.Client) error {
	sar := authorizationapi.SubjectAccessReview{
		Verb:     "delete",
		Resource: "images",
	}
	response, err := client.ClusterSubjectAccessReviews().Create(&sar)
	if err != nil {
		log.Errorf("OpenShift client error: %s", err)
		if kerrors.IsUnauthorized(err) || kerrors.IsForbidden(err) {
			return ErrOpenShiftAccessDenied
		}
		return err
	}
	if !response.Allowed {
		log.Errorf("OpenShift access denied: %s", response.Reason)
		return ErrOpenShiftAccessDenied
	}
	return nil
}

func verifyImageStreamAccess(namespace, imageRepo, verb string, client *client.Client) error {
	sar := authorizationapi.SubjectAccessReview{
		Verb:         verb,
		Resource:     "imagestreams/layers",
		ResourceName: imageRepo,
	}
	response, err := client.SubjectAccessReviews(namespace).Create(&sar)
	if err != nil {
		log.Errorf("OpenShift client error: %s", err)
		if kerrors.IsUnauthorized(err) || kerrors.IsForbidden(err) {
			return ErrOpenShiftAccessDenied
		}
		return err
	}
	if !response.Allowed {
		log.Errorf("OpenShift access denied: %s", response.Reason)
		return ErrOpenShiftAccessDenied
	}
	return nil
}

func TestErrors(t *testing.T) {
	o := NewObjects(api.Scheme, api.Scheme)
	o.Add(&api.List{
		Items: []runtime.Object{
			// This first call to List will return this error
			&(errors.NewNotFound("ServiceList", "").(*errors.StatusError).ErrStatus),
			// The second call to List will return this error
			&(errors.NewForbidden("ServiceList", "", nil).(*errors.StatusError).ErrStatus),
		},
	})
	client := &Fake{ReactFn: ObjectReaction(o, latest.RESTMapper)}
	_, err := client.Services("test").List(labels.Everything())
	if !errors.IsNotFound(err) {
		t.Fatalf("unexpected error: %v", err)
	}
	t.Logf("error: %#v", err.(*errors.StatusError).Status())
	_, err = client.Services("test").List(labels.Everything())
	if !errors.IsForbidden(err) {
		t.Fatalf("unexpected error: %v", err)
	}
}

// Search searches for a template and returns matches with the object representation
func (r TemplateSearcher) Search(terms ...string) (ComponentMatches, error) {
	matches := ComponentMatches{}

	for _, term := range terms {
		checkedNamespaces := util.NewStringSet()

		for _, namespace := range r.Namespaces {
			if checkedNamespaces.Has(namespace) {
				continue
			}

			checkedNamespaces.Insert(namespace)

			glog.V(4).Infof("checking template %s/%s", namespace, term)
			templates, err := r.Client.Templates(namespace).List(labels.Everything(), fields.Everything())
			if err != nil {
				if errors.IsNotFound(err) || errors.IsForbidden(err) {
					continue
				}
				return nil, err
			}

			for i := range templates.Items {
				template := &templates.Items[i]
				if score, scored := templateScorer(*template, term); scored {
					matches = append(matches, &ComponentMatch{
						Value:       term,
						Argument:    fmt.Sprintf("--template=%q", template.Name),
						Name:        template.Name,
						Description: fmt.Sprintf("Template %q in project %q", template.Name, template.Namespace),
						Score:       score,
						Template:    template,
					})
				}
			}
		}
	}

	return matches, nil
}

// NewForbidden is a utility function to return a well-formatted admission control error response
func NewForbidden(a Attributes, internalError error) error {
	// do not double wrap an error of same type
	if apierrors.IsForbidden(internalError) {
		return internalError
	}

	name := "Unknown"
	kind := a.GetKind()
	obj := a.GetObject()
	if obj != nil {
		objectMeta, err := api.ObjectMetaFor(obj)
		if err != nil {
			return apierrors.NewForbidden(kind, name, internalError)
		}

		// this is necessary because name object name generation has not occurred yet
		if len(objectMeta.Name) > 0 {
			name = objectMeta.Name
		} else if len(objectMeta.GenerateName) > 0 {
			name = objectMeta.GenerateName
		}
	}
	return apierrors.NewForbidden(kind, name, internalError)
}

// Search will attempt to find imagestreams with names that matches the passed in value
func (r ImageStreamSearcher) Search(terms ...string) (ComponentMatches, error) {
	componentMatches := ComponentMatches{}
	for _, term := range terms {
		ref, err := imageapi.ParseDockerImageReference(term)
		if err != nil || len(ref.Registry) != 0 {
			return nil, fmt.Errorf("image streams must be of the form [<namespace>/]<name>[:<tag>|@<digest>]")
		}
		namespaces := r.Namespaces
		if len(ref.Namespace) != 0 {
			namespaces = []string{ref.Namespace}
		}
		searchTag := ref.Tag
		if len(searchTag) == 0 {
			searchTag = imageapi.DefaultImageTag
		}
		for _, namespace := range namespaces {
			glog.V(4).Infof("checking ImageStreams %s/%s with ref %q", namespace, ref.Name, searchTag)
			streams, err := r.Client.ImageStreams(namespace).List(labels.Everything(), fields.Everything())
			if err != nil {
				if errors.IsNotFound(err) || errors.IsForbidden(err) {
					continue
				}
				return nil, err
			}
			ref.Namespace = namespace
			for i := 0; i < len(streams.Items); i++ {
				stream := streams.Items[i]
				score, scored := imageStreamScorer(stream, ref.Name)
				if scored {
					imageref, _ := imageapi.ParseDockerImageReference(term)
					imageref.Name = stream.Name

					latest := imageapi.LatestTaggedImage(&stream, searchTag)
					if latest == nil {
						glog.V(2).Infof("no image recorded for %s/%s:%s", stream.Namespace, stream.Name, searchTag)
						componentMatches = append(componentMatches, &ComponentMatch{
							Value:       imageref.String(),
							Argument:    fmt.Sprintf("--image-stream=%q", imageref.String()),
							Name:        imageref.Name,
							Description: fmt.Sprintf("Image stream %s in project %s, tracks %q", stream.Name, stream.Namespace, stream.Status.DockerImageRepository),
							Score:       0.5 + score,
							ImageStream: &stream,
							ImageTag:    searchTag,
						})
						continue
					}

					imageStreamImage, err := r.ImageStreamImages.ImageStreamImages(namespace).Get(stream.Name, latest.Image)
					if err != nil {
						if errors.IsNotFound(err) {
							// continue searching
							glog.V(2).Infof("tag %q is set, but image %q has been removed", searchTag, latest.Image)
							continue
						}
						return nil, err
					}
					imageData := imageStreamImage.Image

					imageref.Registry = ""
					componentMatches = append(componentMatches, &ComponentMatch{
						Value:       imageref.String(),
						Argument:    fmt.Sprintf("--image-stream=%q", imageref.String()),
						Name:        imageref.Name,
						Description: fmt.Sprintf("Image stream %q (tag %q) in project %q, tracks %q", stream.Name, searchTag, stream.Namespace, stream.Status.DockerImageRepository),
						Builder:     IsBuilderImage(&imageData.DockerImageMetadata),
						Score:       score,
						ImageStream: &stream,
						Image:       &imageData.DockerImageMetadata,
						ImageTag:    searchTag,
					})
				}
			}
		}
	}
	return componentMatches, nil
}

func TestBuildAdmission(t *testing.T) {
	tests := []struct {
		name             string
		kind             string
		resource         string
		object           runtime.Object
		reviewResponse   *authorizationapi.SubjectAccessReviewResponse
		expectedResource string
		expectAccept     bool
	}{
		{
			name:             "allowed source build",
			object:           testBuild(buildapi.SourceBuildStrategyType),
			kind:             "Build",
			resource:         buildsResource,
			reviewResponse:   reviewResponse(true, ""),
			expectedResource: authorizationapi.SourceBuildResource,
			expectAccept:     true,
		},
		{
			name:             "denied docker build",
			object:           testBuild(buildapi.DockerBuildStrategyType),
			kind:             "Build",
			resource:         buildsResource,
			reviewResponse:   reviewResponse(false, "cannot create build of type docker build"),
			expectAccept:     false,
			expectedResource: authorizationapi.DockerBuildResource,
		},
		{
			name:             "allowed custom build",
			object:           testBuild(buildapi.CustomBuildStrategyType),
			kind:             "Build",
			resource:         buildsResource,
			reviewResponse:   reviewResponse(true, ""),
			expectedResource: authorizationapi.CustomBuildResource,
			expectAccept:     true,
		},
		{
			name:             "allowed build config",
			object:           testBuildConfig(buildapi.DockerBuildStrategyType),
			kind:             "BuildConfig",
			resource:         buildConfigsResource,
			reviewResponse:   reviewResponse(true, ""),
			expectAccept:     true,
			expectedResource: authorizationapi.DockerBuildResource,
		},
		{
			name:             "forbidden build config",
			object:           testBuildConfig(buildapi.CustomBuildStrategyType),
			kind:             "BuildConfig",
			resource:         buildConfigsResource,
			reviewResponse:   reviewResponse(false, ""),
			expectAccept:     false,
			expectedResource: authorizationapi.CustomBuildResource,
		},
	}

	for _, test := range tests {
		c := NewBuildByStrategy(fakeClient(test.expectedResource, test.reviewResponse))
		attrs := admission.NewAttributesRecord(test.object, test.kind, "default", "name", test.resource, "" /*subresource*/, admission.Create, fakeUser())
		err := c.Admit(attrs)
		if err != nil && test.expectAccept {
			t.Errorf("%s: unexpected error: %v", test.name, err)
		}
		if (err == nil || !apierrors.IsForbidden(err)) && !test.expectAccept {
			t.Errorf("%s: expecting reject error", test.name)
		}
	}
}