opts := ObjectOptions{
			UserDefined: map[string]string{
				xhttp.IfNoneMatch: "*",
			},
			CheckPrecondFn: func(oi ObjectInfo) bool {
				// Precondition fails if object exists (ETag is not empty)
				return oi.ETag != ""
			},
		}

		_, err := obj.PutObject(ctx, bucket, object,
			mustGetPutObjReader(t, bytes.NewReader([]byte("new-value")),

			md5Bytes := md5.Sum([]byte(object.content))
			oi, err := obj.PutObject(context.Background(), testCase.bucketName, object.name, mustGetPutObjReader(t, strings.NewReader(object.content),
				int64(len(object.content)), hex.EncodeToString(md5Bytes[:]), ""), ObjectOptions{})
			if err != nil {
				t.Log(oi)
				t.Fatalf("%s : %s", instanceType, err.Error())
			}
		}

	oi := gr.ObjInfo

	defer func() {
		gr.Close()
		auditLogRebalance(ctx, "RebalanceCopyData", oi.Bucket, oi.Name, oi.VersionID, err)
	}()

	actualSize, err := oi.GetActualSize()
	if err != nil {
		return err
	}

	if oi.isMultipart() {
		res, err := z.NewMultipartUpload(ctx, bucket, oi.Name, ObjectOptions{
			VersionID:    oi.VersionID,
			UserDefined:  oi.UserDefined,

		if checksumType.IsSet() {
			if opts.EncryptFn == nil {
				return oi, crypto.ErrMissingCustomerKey
			}
			baseKey := opts.EncryptFn("", nil)
			if len(baseKey) != 32 {
				return oi, crypto.ErrInvalidCustomerKey
			}
			objectEncryptionKey, err = decryptObjectMeta(baseKey, bucket, object, fi.Metadata)
			if err != nil {
				return oi, err
			}
		}
	case crypto.S3, crypto.S3KMS:

	oi := objInfo.Clone()
	oi.metadataOnly = true // Perform only metadata updates.

	// allow retry in the case of failure to restore
	delete(oi.UserDefined, xhttp.AmzRestore)

	if _, err := er.CopyObject(ctx, bucket, object, bucket, object, oi, ObjectOptions{
		VersionID: oi.VersionID,
	}, ObjectOptions{
		VersionID: oi.VersionID,
	}); err != nil {

		return
	}

	// Validate pre-conditions if any.
	opts.CheckPrecondFn = func(oi ObjectInfo) bool {
		if _, err := DecryptObjectInfo(&oi, r); err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return true
		}

		return checkPreconditions(ctx, w, r, oi, opts)
	}

	zipObjInfo, err := getObjectInfo(ctx, bucket, zipPath, opts)
	if err != nil {

func DecryptBlocksRequestR(inputReader io.Reader, h http.Header, seqNumber uint32, partStart int, oi ObjectInfo, copySource bool) (io.Reader, error) {
	bucket, object := oi.Bucket, oi.Name
	// Single part case
	if !oi.isMultipart() {
		var reader io.Reader
		var err error
		if copySource {
			reader, err = DecryptCopyRequestR(inputReader, h, bucket, object, seqNumber, oi.UserDefined)
		} else {

			return
		}
	}

	// Validate pre-conditions if any.
	opts.CheckPrecondFn = func(oi ObjectInfo) bool {
		if _, err := DecryptObjectInfo(&oi, r); err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return true
		}

		if oi.UserTags != "" {
			r.Header.Set(xhttp.AmzObjectTagging, oi.UserTags)
		}

		if s3Error := authorizeRequest(ctx, r, policy.GetObjectAction); s3Error != ErrNone {

}

func (oiCache objInfoCache) Add(toDel ObjectToDelete, oi *ObjectInfo) {
	oiCache[fmt.Sprintf("%s-%s", toDel.ObjectName, toDel.VersionID)] = oi
}

func (oiCache objInfoCache) Get(toDel ObjectToDelete) (*ObjectInfo, bool) {
	oi, ok := oiCache[fmt.Sprintf("%s-%s", toDel.ObjectName, toDel.VersionID)]
	return oi, ok
}

		})

		for i, dobj := range deletedObjs {
			oi := ObjectInfo{
				Bucket:    bucket,
				Name:      dobj.ObjectName,
				VersionID: dobj.VersionID,
			}
			traceFn := globalLifecycleSys.trace(oi)
			tags := newLifecycleAuditEvent(lcEventSrc_Scanner, lcEvent[i]).Tags()

			// Send audit for the lifecycle delete operation
			auditLogLifecycle(
				ctx,
				oi,
				ILMExpiry, tags, traceFn)