}

// OperationTimedOut - a timeout occurred.
type OperationTimedOut struct{}

func (e OperationTimedOut) Error() string {
	return "Operation timed out"
}

// Multipart related errors.

// MalformedUploadID malformed upload id.
type MalformedUploadID struct {
	UploadID string
}

func (e MalformedUploadID) Error() string {
	return "Malformed upload id " + e.UploadID

func isRequestPostPolicySignatureV4(r *http.Request) bool {
	mediaType, _, err := mime.ParseMediaType(r.Header.Get(xhttp.ContentType))
	if err != nil {
		return false
	}
	return mediaType == "multipart/form-data" && r.Method == http.MethodPost
}

// Verify if the request has AWS Streaming Signature Version '4'. This is only valid for 'PUT' operation.
func isRequestSignStreamingV4(r *http.Request) bool {

		}
		rinfo.Duration = time.Since(startTime)
	}()

	rinfo.ReplicationStatus = replication.Completed
	rinfo.Size = size
	rinfo.ReplicationAction = rAction
	// use core client to avoid doing multipart on PUT
	c := &minio.Core{Client: tgt.Client}

	putOpts, isMP, err := putReplicationOpts(ctx, tgt.StorageClass, objInfo)
	if err != nil {

    This includes overly-long domain names (longer than 253 characters), overly-long labels (more
    than 63 characters between dots), and empty labels.
 *  New: Don't include the `Content-Length` header in multipart bodies. Servers must delimit
    OkHttp's request bodies using the boundary only. (This change makes OkHttp more consistent with
    browsers and other HTTP clients.)

		return grid.NewNPErr(errDiskNotFound)
	}
	return grid.NewNPErr(s.getStorage().RenameFile(context.Background(), p.SrcVolume, p.SrcFilePath, p.DstVolume, p.DstFilePath))
}

// RenamePartHandler - rename a multipart part from source to destination
func (s *storageRESTServer) RenamePartHandler(p *RenamePartHandlerParams) (grid.NoPayload, *grid.RemoteErr) {
	if !s.checkID(p.DiskID) {
		return grid.NewNPErr(errDiskNotFound)
	}

    * Up to now the application would run, and raise an exception only when receiving a request with form data, the new behavior, raising early, will prevent from deploying applications with broken dependencies.
    * It also detects if the correct package `python-multipart` is installed instead of the incorrect `multipart` (both importable as `multipart`).

			if srcChecksumDecrypted != nil {
				dstOpts.WantChecksum = hash.ChecksumFromBytes(srcChecksumDecrypted)

				// When an object is being copied from a source that is multipart, the destination will
				// no longer be multipart, and thus the checksum becomes full-object instead. Since
				// the CopyObject API does not require that the caller send us this final checksum, we need

pkg mime/multipart, type File interface, Seek(int64, int) (int64, error)
pkg mime/multipart, type FileHeader struct
pkg mime/multipart, type FileHeader struct, Filename string
pkg mime/multipart, type FileHeader struct, Header textproto.MIMEHeader
pkg mime/multipart, type Form struct
pkg mime/multipart, type Form struct, File map[string][]*FileHeader
pkg mime/multipart, type Form struct, Value map[string][]string
pkg mime/multipart, type Part struct

}

// The []journal contains all the different versions of the object.
//
// This array can have 3 kinds of objects:
//
// ``object``: If the object is uploaded the usual way: putobject, multipart-put, copyobject
//
// ``delete``: This is the delete-marker
//
// ``legacyObject``: This is the legacy object in xlV1 format, preserved until its overwritten
//

		storageLogIf(ctx, fmt.Errorf("Unable to update transition restore metadata for %s/%s(%s): %s", bucket, object, oi.VersionID, err))
		return err
	}
	return nil
}

// restoreTransitionedObject for multipart object chunks the file stream from remote tier into the same number of parts
// as in the xl.meta for this version and rehydrates the part.n into the fi.DataDir for this version as in the xl.meta