return nil
	}
	_, err := xnet.ParseHost(host)
	return err
}

// Check if the incoming path has bad path components,
// such as ".." and "."
func hasBadPathComponent(path string) bool {
	if len(path) > 4096 {
		// path cannot be greater than Linux PATH_MAX
		// this is to avoid a busy loop, that can happen
		// if the caller sends path of following style
		// a/a/a/a/a/a/a/a...

	}
	return IsValidObjectPrefix(object)
}

// IsValidObjectPrefix verifies whether the prefix is a valid object name.
// Its valid to have a empty prefix.
func IsValidObjectPrefix(object string) bool {
	if hasBadPathComponent(object) {
		return false
	}
	if !utf8.ValidString(object) {
		return false
	}
	if strings.Contains(object, `//`) {
		return false
	}
	// This is valid for AWS S3 but it will never

		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
		return
	}

	file = filepath.ToSlash(file)
	// Reject attempts to traverse parent or absolute paths.
	if hasBadPathComponent(volume) || hasBadPathComponent(file) {
		writeErrorResponse(r.Context(), w, errorCodes.ToAPIErr(ErrInvalidResourceName), r.URL)
		return
	}

	var publicKey *rsa.PublicKey