if len(values[peerRESTListenPrefix]) > 1 {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrFilterNamePrefix), r.URL)
		return
	}

	if len(values[peerRESTListenPrefix]) == 1 {
		if err := event.ValidateFilterRuleValue(values[peerRESTListenPrefix][0]); err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}

		prefix = values[peerRESTListenPrefix][0]
	}

	var suffix string

package event

import (
	"encoding/xml"
	"errors"
	"io"
	"reflect"
	"strings"
	"unicode/utf8"

	"github.com/minio/minio-go/v7/pkg/set"
)

// ValidateFilterRuleValue - checks if given value is filter rule value or not.
func ValidateFilterRuleValue(value string) error {
	for segment := range strings.SplitSeq(value, "/") {
		if segment == "." || segment == ".." {
			return &ErrInvalidFilterValue{value}
		}
	}