writeErrorResponse(ctx, w, toAPIError(ctx, NotImplemented{}), r.URL)
			return
		}

		if acl.AccessControlList.Grants[0].Permission != "FULL_CONTROL" {
			writeErrorResponse(ctx, w, toAPIError(ctx, NotImplemented{}), r.URL)
			return
		}
	}

	if aclHeader != "" && aclHeader != "private" {
		writeErrorResponse(ctx, w, toAPIError(ctx, NotImplemented{}), r.URL)
		return
	}
}

func (driver *ftpDriver) Rename(ctx *ftp.Context, fromObjPath string, toObjPath string) (err error) {
	stopFn := globalFtpMetrics.log(ctx, fromObjPath, toObjPath)
	defer stopFn(0, err)

	return NotImplemented{}
}

// MakeDir implements ftpDriver
func (driver *ftpDriver) MakeDir(ctx *ftp.Context, objPath string) (err error) {
	stopFn := globalFtpMetrics.log(ctx, objPath)
	defer stopFn(0, err)

		_, err = clnt.PutObject(context.Background(), bucket, dirPath, bytes.NewReader([]byte("")), 0,
			minio.PutObjectOptions{DisableContentSha256: true},
		)
		return err
	}

	return NotImplemented{}
}

type listerAt []os.FileInfo

// Modeled after strings.Reader's ReadAt() implementation
func (f listerAt) ListAt(ls []os.FileInfo, offset int64) (int, error) {
	var n int

type BackendDown struct {
	Err string
}

func (e BackendDown) Error() string {
	return e.Err
}

// NotImplemented If a feature is not implemented
type NotImplemented struct {
	Message string
}

func (e NotImplemented) Error() string {
	return e.Message
}

// UnsupportedMetadata - unsupported metadata
type UnsupportedMetadata struct{}

		err = BucketNameInvalid{Bucket: bucket}
	case "RequestBodyTooLarge":
		err = PartTooBig{}
	case "InvalidMetadata":
		err = UnsupportedMetadata{}
	case "BlobAccessTierNotSupportedForAccountType":
		err = NotImplemented{}
	case "OutOfRangeInput":
		err = ObjectNameInvalid{
			Bucket: bucket,
			Object: object,
		}
	default:
		switch statusCode {
		case http.StatusNotFound:
			if object != "" {

	},
	ErrNoSuchVersion: {
		Code:           "NoSuchVersion",
		Description:    "The specified version does not exist.",
		HTTPStatusCode: http.StatusNotFound,
	},
	ErrNotImplemented: {
		Code:           "NotImplemented",
		Description:    "A header you provided implies functionality that is not implemented",
		HTTPStatusCode: http.StatusNotImplemented,
	},
	ErrPreconditionFailed: {
		Code:           "PreconditionFailed",

		}
		if r.OutputLocation.S3.Prefix == "" {
			return fmt.Errorf("Prefix is a required parameter in OutputLocation")
		}
		if r.OutputLocation.S3.Encryption.EncryptionType != xhttp.AmzEncryptionAES {
			return NotImplemented{}
		}
	}
	return nil
}

// postRestoreOpts returns ObjectOptions with version-id from the POST restore object request for a given bucket and object.

		auditObjectErasureSet(ctx, "CopyObject", dstObject, &er)
	}

	// This call shouldn't be used for anything other than metadata updates or adding self referential versions.
	if !srcInfo.metadataOnly {
		return oi, NotImplemented{}
	}

	if !dstOpts.NoLock {
		lk := er.NewNSLock(dstBucket, dstObject)
		lkctx, err := lk.GetLock(ctx, globalOperationTimeout)
		if err != nil {
			return oi, err
		}
		ctx = lkctx.Context()

	loi := ListObjectVersionsInfo{}
	if marker == "" && versionMarker != "" {
		return loi, NotImplemented{}
	}

	opts := listPathOptions{
		Bucket:      bucket,
		Prefix:      prefix,
		Separator:   delimiter,
		Limit:       maxKeysPlusOne(maxKeys, marker != ""),
		Marker:      marker,