if errCode != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(errCode), r.URL)
		return
	}

	if maxUploads < 0 {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidMaxUploads), r.URL)
		return
	}

	if keyMarker != "" {
		// Marker not common with prefix is not implemented.
		if !HasPrefix(keyMarker, prefix) {
			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)

	vars := mux.Vars(r)
	bucket := vars["bucket"]

	objectAPI := api.ObjectAPI()
	if objectAPI == nil {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
		return
	}

	if s3Error := checkRequestAuthType(ctx, r, policy.ListBucketVersionsAction, bucket, ""); s3Error != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}
	var checkObjMeta metaCheckFn
	if metadata {

		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL)
		return
	}

	zipPath, object, err := splitZipExtensionPath(object)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	opts, err := getOpts(ctx, r, bucket, zipPath)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidStorageClass), r.URL)
			return
		}
	}

	encMetadata := map[string]string{}

	if crypto.Requested(r.Header) {
		if crypto.SSECopy.IsRequested(r.Header) {
			writeErrorResponse(ctx, w, toAPIError(ctx, errInvalidEncryptionParameters), r.URL)
			return
		}

		if crypto.SSEC.IsRequested(r.Header) && crypto.S3.IsRequested(r.Header) {

	if !s.IsValid(w, r) {
		s.writeErrorResponse(w, errors.New("Invalid request"))
		return
	}

	vars := mux.Vars(r)
	bucketName := vars[peerRESTBucket]
	if bucketName == "" {
		s.writeErrorResponse(w, errors.New("Bucket name is missing"))
		return
	}

	var rulesMap event.RulesMap
	if r.ContentLength < 0 {
		s.writeErrorResponse(w, errInvalidArgument)
		return
	}

					s3Error = ErrNoSuchKey
				}
			}
		}
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}

	// Get request range.
	rangeHeader := r.Header.Get(xhttp.Range)
	if rangeHeader != "" {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrUnsupportedRangeHeader), r.URL)
		return
	}

	if r.ContentLength <= 0 {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrEmptyRequestBody), r.URL)

		lh.writeErrorResponse(w, err)
		return
	}
}

func (lh *lockServerHandler) RefreshHandler(w http.ResponseWriter, r *http.Request) {
	args, err := getLockArgs(r)
	if err != nil {
		lh.writeErrorResponse(w, err)
		return
	}

	reply, err := lh.lsrv.Refresh(&args)
	if err != nil {
		lh.writeErrorResponse(w, err)
		return
	}

	if !reply {
		lh.writeErrorResponse(w, errLockNotFound)
		return
	}
}

			writeErrorResponse(r.Context(), w, errorCodes.ToAPIErr(ErrUnsupportedMetadata), r.URL)
			return
		}

		if isHTTPHeaderSizeTooLarge(r.Header) {
			if ok {
				tc.FuncName = "handler.ValidRequest"
				tc.ResponseRecorder.LogErrBody = true
			}

			defer logger.AuditLog(r.Context(), w, r, mustGetClaimsFromToken(r))

			allPolicies, err := globalIAMSys.ListPolicies(ctx, "")
			if err != nil {
				adminLogIf(ctx, err)
				writeErrorResponse(ctx, w, exportError(ctx, err, iamFile, ""), r.URL)
				return
			}

			policiesData, err := json.Marshal(allPolicies)
			if err != nil {
				writeErrorResponse(ctx, w, exportError(ctx, err, iamFile, ""), r.URL)
				return
			}

				tc.ResponseRecorder.LogErrBody = true
			}

			writeErrorResponse(r.Context(), w, getAPIError(ErrNotImplemented), r.URL)
			return
		}

		tc, ok := r.Context().Value(mcontext.ContextTraceKey).(*mcontext.TraceCtxt)
		if ok {
			tc.FuncName = "s3.ValidRequest"
			tc.ResponseRecorder.LogErrBody = true
		}

		writeErrorResponse(r.Context(), w, APIError{
			Code: "BadRequest",