// errVolumeAccessDenied - cannot access volume, insufficient permissions.
var errVolumeAccessDenied = StorageErr("volume access denied")

// errFileAccessDenied - cannot access file, insufficient permissions.
var errFileAccessDenied = StorageErr("file access denied")

// errFileCorrupt - file has an unexpected size, or is not readable
var errFileCorrupt = StorageErr("file is corrupted")

	// Validate that the client cannot remove any objects
	err = minioClient.RemoveObject(ctx, bucket, "someobject", minio.RemoveObjectOptions{})
	if err.Error() != "Access Denied." {
		c.Fatalf("unexpected non-access-denied err: %v", err)
	}
}

func (s *TestSuiteIAM) TestSTSWithGroupPolicy(c *check) {
	ctx, cancel := context.WithTimeout(context.Background(), testDefaultTimeout)
	defer cancel()

	return "Object exists on : " + e.Bucket + " as directory " + e.Object
}

// PrefixAccessDenied object access is denied.
type PrefixAccessDenied GenericError

func (e PrefixAccessDenied) Error() string {
	return "Prefix access is denied: " + e.Bucket + SlashSeparator + e.Object
}

// BucketExists bucket exists.
type BucketExists GenericError

func (e BucketExists) Error() string {

	// List of test cases for validating http request authentication.
	testCases := []struct {
		req     *http.Request
		s3Error APIErrorCode
	}{
		// When request is unsigned, access denied is returned.
		{mustNewRequest(http.MethodGet, "http://127.0.0.1:9000", 0, nil, t), ErrAccessDenied},
		// Empty Content-Md5 header.

	errEncryptedObject                = errors.New("The object was stored using a form of SSE")
	errInvalidSSEParameters           = errors.New("The SSE-C key for key-rotation is not correct") // special access denied
	errKMSNotConfigured               = errors.New("KMS not configured for a server side encrypted objects")
	errKMSKeyNotFound                 = errors.New("Unknown KMS key ID")

				}
				g, ok = c.iamGroupsMap[name]
				if !ok {
					return nil, time.Time{}, errNoSuchGroup
				}
			}

			// Group is disabled, so we return no policy - this
			// ensures the request is denied.
			if g.Status == statusDisabled {
				return nil, time.Time{}, nil
			}
		}

		policy, ok := c.iamGroupPolicyMap.Load(name)
		if ok {
			return policy.toSlice(), policy.UpdatedAt, nil
		}

	if err != nil {
		return err
	}

	if !response.Status.Allowed {
		if len(response.Status.Reason) > 0 {
			return errors.New(response.Status.Reason)
		}
		return errors.New("permission denied")
	}
	return nil
}

func checkServerVersion(cli kube.CLIClient) (diag.Messages, error) {
	v, err := cli.GetKubernetesVersion()
	if err != nil {

			//   HTTP status code 404 ("no such key")
			//   error.
			// * if you don’t have the s3:ListBucket
			//   permission, Amazon S3 will return an HTTP
			//   status code 403 ("access denied") error.`
			if globalPolicySys.IsAllowed(policy.BucketPolicyArgs{
				Action:          policy.ListBucketAction,
				BucketName:      bucket,
				ConditionValues: getConditionValues(r, "", auth.AnonymousCredentials),

		}
	}

	// TestXLStorage for permission denied.
	if runtime.GOOS != globalWindowsOSName {
		permDeniedDir := createPermDeniedFile(t)
		if err = os.Chmod(permDeniedDir, 0o400); err != nil {
			t.Fatalf("Unable to change permission to temporary directory %v. %v", permDeniedDir, err)
		}

		// Initialize xlStorage storage layer for permission denied error.
		_, err = newLocalXLStorage(permDeniedDir)

			//   HTTP status code 404 ("no such key")
			//   error.
			// * if you don’t have the s3:ListBucket
			//   permission, Amazon S3 will return an HTTP
			//   status code 403 ("access denied") error.`
			if globalPolicySys.IsAllowed(policy.BucketPolicyArgs{
				Action:          policy.ListBucketAction,
				BucketName:      bucket,
				ConditionValues: getConditionValues(r, "", auth.AnonymousCredentials),