Avoid encoding in LogResponseObject when we are not going to use it
Signed-off-by: Davanum Srinivas <davanum@gmail.com> Kubernetes-commit: e418ee3a92ca6c670d26f775b0f669e8a5fe233c
This commit is contained in:
Davanum Srinivas
Kubernetes Publisher
parent
9b509bf53b
commit
bda7e28bbb
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@ -171,7 +171,7 @@ func LogRequestPatch(ctx context.Context, patch []byte) {
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// will be converted to the given gv.
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func LogResponseObject(ctx context.Context, obj runtime.Object, gv schema.GroupVersion, s runtime.NegotiatedSerializer) {
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ac := AuditContextFrom(WithAuditContext(ctx))
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if ac.GetEventLevel().Less(auditinternal.LevelMetadata) {
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if ac.GetEventLevel().Less(auditinternal.LevelRequestResponse) {
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return
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}
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@ -0,0 +1,259 @@
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/*
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Copyright 2025 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 audit
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import (
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"context"
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"io"
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"strings"
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"testing"
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corev1 "k8s.io/api/core/v1"
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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/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/runtime/serializer"
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auditinternal "k8s.io/apiserver/pkg/apis/audit"
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)
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func TestLogResponseObjectWithPod(t *testing.T) {
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testPod := &corev1.Pod{
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TypeMeta: metav1.TypeMeta{
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APIVersion: "v1",
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Kind: "Pod",
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},
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-pod",
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Namespace: "test-namespace",
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},
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{
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Name: "test-container",
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Image: "test-image",
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},
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},
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},
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}
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scheme := runtime.NewScheme()
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if err := corev1.AddToScheme(scheme); err != nil {
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t.Fatalf("Failed to add core/v1 to scheme: %v", err)
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}
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codecs := serializer.NewCodecFactory(scheme)
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negotiatedSerializer := codecs.WithoutConversion()
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// Create audit context with RequestResponse level
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ctx := WithAuditContext(context.Background())
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ac := AuditContextFrom(ctx)
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captureSink := &capturingAuditSink{}
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if err := ac.Init(RequestAuditConfig{Level: auditinternal.LevelRequestResponse}, captureSink); err != nil {
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t.Fatalf("Failed to initialize audit context: %v", err)
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}
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LogResponseObject(ctx, testPod, schema.GroupVersion{Group: "", Version: "v1"}, negotiatedSerializer)
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ac.ProcessEventStage(ctx, auditinternal.StageResponseComplete)
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if len(captureSink.events) != 1 {
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t.Fatalf("Expected one audit event to be captured, got %d", len(captureSink.events))
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}
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event := captureSink.events[0]
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if event.ResponseObject == nil {
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t.Fatal("Expected ResponseObject to be set, but it was nil")
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}
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if event.ResponseObject.ContentType != runtime.ContentTypeJSON {
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t.Errorf("Expected ContentType to be %q, got %q", runtime.ContentTypeJSON, event.ResponseObject.ContentType)
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}
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if len(event.ResponseObject.Raw) == 0 {
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t.Error("Expected ResponseObject.Raw to contain data, but it was empty")
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}
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responseJSON := string(event.ResponseObject.Raw)
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expectedFields := []string{"test-pod", "test-namespace", "test-container", "test-image"}
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for _, field := range expectedFields {
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if !strings.Contains(responseJSON, field) {
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t.Errorf("Response should contain %q but didn't. Response: %s", field, responseJSON)
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}
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}
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if event.ResponseStatus != nil {
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t.Errorf("Expected ResponseStatus to be nil for regular object, got: %+v", event.ResponseStatus)
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}
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}
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func TestLogResponseObjectWithStatus(t *testing.T) {
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// Create a status object to test ResponseStatus handling
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testStatus := &metav1.Status{
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TypeMeta: metav1.TypeMeta{
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APIVersion: "v1",
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Kind: "Status",
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},
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Status: "Success",
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Message: "Test status message",
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Reason: "TestReason",
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Code: 200,
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}
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scheme := runtime.NewScheme()
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err := metav1.AddMetaToScheme(scheme)
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if err != nil {
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t.Fatalf("Failed to add meta to scheme: %v", err)
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}
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scheme.AddKnownTypes(schema.GroupVersion{Version: "v1"}, &metav1.Status{})
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codecs := serializer.NewCodecFactory(scheme)
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negotiatedSerializer := codecs.WithoutConversion()
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ctx := WithAuditContext(context.Background())
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ac := AuditContextFrom(ctx)
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captureSink := &capturingAuditSink{}
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if err := ac.Init(RequestAuditConfig{Level: auditinternal.LevelRequestResponse}, captureSink); err != nil {
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t.Fatalf("Failed to initialize audit context: %v", err)
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}
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LogResponseObject(ctx, testStatus, schema.GroupVersion{Group: "", Version: "v1"}, negotiatedSerializer)
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ac.ProcessEventStage(ctx, auditinternal.StageResponseComplete)
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if len(captureSink.events) != 1 {
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t.Fatalf("Expected one audit event to be captured, got %d", len(captureSink.events))
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}
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event := captureSink.events[0]
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if event.ResponseObject == nil {
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t.Fatal("Expected ResponseObject to be set, but it was nil")
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}
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if event.ResponseStatus == nil {
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t.Fatal("Expected ResponseStatus to be set for Status object, but it was nil")
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}
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if event.ResponseStatus.Status != "Success" {
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t.Errorf("Expected ResponseStatus.Status to be 'Success', got %q", event.ResponseStatus.Status)
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}
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if event.ResponseStatus.Message != "Test status message" {
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t.Errorf("Expected ResponseStatus.Message to be 'Test status message', got %q", event.ResponseStatus.Message)
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}
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if event.ResponseStatus.Reason != "TestReason" {
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t.Errorf("Expected ResponseStatus.Reason to be 'TestReason', got %q", event.ResponseStatus.Reason)
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}
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if event.ResponseStatus.Code != 200 {
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t.Errorf("Expected ResponseStatus.Code to be 200, got %d", event.ResponseStatus.Code)
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}
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}
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func TestLogResponseObjectLevelCheck(t *testing.T) {
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testCases := []struct {
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name string
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level auditinternal.Level
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shouldEncode bool
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}{
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{
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name: "None level should not encode",
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level: auditinternal.LevelNone,
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shouldEncode: false,
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},
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{
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name: "Metadata level should not encode",
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level: auditinternal.LevelMetadata,
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shouldEncode: false,
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},
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{
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name: "Request level should not encode",
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level: auditinternal.LevelRequest,
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shouldEncode: false,
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},
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{
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name: "RequestResponse level should encode",
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level: auditinternal.LevelRequestResponse,
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shouldEncode: true,
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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// Create a test object
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testObj := &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-pod",
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Namespace: "test-namespace",
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},
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}
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// Create audit context with the specified level
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ctx := WithAuditContext(context.Background())
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ac := AuditContextFrom(ctx)
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ac.Init(RequestAuditConfig{Level: tc.level}, nil)
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// Create a mock serializer that tracks if encoding was attempted
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mockSerializer := &mockNegotiatedSerializer{}
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// Call the function under test
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LogResponseObject(ctx, testObj, schema.GroupVersion{Group: "", Version: "v1"}, mockSerializer)
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// Check if encoding was attempted as expected
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if mockSerializer.encodeCalled != tc.shouldEncode {
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t.Errorf("Expected encoding to be called: %v, but got: %v", tc.shouldEncode, mockSerializer.encodeCalled)
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}
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})
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}
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}
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type mockNegotiatedSerializer struct {
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encodeCalled bool
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}
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func (m *mockNegotiatedSerializer) SupportedMediaTypes() []runtime.SerializerInfo {
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return []runtime.SerializerInfo{
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{
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MediaType: runtime.ContentTypeJSON,
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EncodesAsText: true,
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Serializer: nil,
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PrettySerializer: nil,
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StreamSerializer: nil,
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},
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}
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}
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func (m *mockNegotiatedSerializer) EncoderForVersion(serializer runtime.Encoder, gv runtime.GroupVersioner) runtime.Encoder {
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m.encodeCalled = true
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return &mockEncoder{}
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}
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func (m *mockNegotiatedSerializer) DecoderToVersion(serializer runtime.Decoder, gv runtime.GroupVersioner) runtime.Decoder {
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return nil
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}
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type mockEncoder struct{}
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func (e *mockEncoder) Encode(obj runtime.Object, w io.Writer) error {
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return nil
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}
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func (e *mockEncoder) Identifier() runtime.Identifier {
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return runtime.Identifier("mock")
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}
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type capturingAuditSink struct {
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events []*auditinternal.Event
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}
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func (s *capturingAuditSink) ProcessEvents(events ...*auditinternal.Event) bool {
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for _, event := range events {
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eventCopy := event.DeepCopy()
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s.events = append(s.events, eventCopy)
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}
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return true
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}
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