// modification time plus the number of transition/restore days.
//
//	e.g. If the object modtime is `Thu May 21 13:42:50 GMT 2020` and the object should
//	    transition in 1 day, then the expected transition time is `Fri, 23 May 2020 00:00:00 GMT`
func ExpectedExpiryTime(modTime time.Time, days int) time.Time {
	if days == 0 {
		return modTime
	}

			return errors.New("deleting all buckets not allowed")
		}

		cctx, cancel := context.WithCancel(context.Background())
		defer cancel()

		if prefix == "" {
			// if all objects are not deleted yet this call may fail.
			return clnt.RemoveBucket(cctx, bucket)
		}

		objectsCh := make(chan minio.ObjectInfo)

		// Send object names that are needed to be removed to objectsCh
		go func() {

		sort.Strings(entries)
		dirStack := make([]string, 0, 5)
		prefix = "" // Remove prefix after first level as we have already filtered the list.
		if len(forward) > 0 {
			// Conservative forwarding. Entries may be either objects or prefixes.
			for i, entry := range entries {
				if entry >= forward || strings.HasPrefix(forward, entry) {
					entries = entries[i:]
					break
				}
			}
		}

		return
	}

	claims[expClaim] = UTCNow().Add(duration).Unix()
	claims[parentClaim] = user.AccessKey

	// Validate that user.AccessKey's policies can be retrieved - it may not
	// be in case the user is disabled.
	if _, err = globalIAMSys.PolicyDBGet(user.AccessKey, user.Groups...); err != nil {
		writeSTSErrorResponse(ctx, w, ErrSTSInvalidParameterValue, err)
		return
	}

		ModTime:     zipObjInfo.ModTime,
		ContentType: mime.TypeByExtension(filepath.Ext(object)),
	}

	var rc io.ReadCloser

	if file.UncompressedSize64 > 0 {
		// There may be number of header bytes before the content.
		// Reading 64K extra. This should more than cover name and any "extra" details.
		end := file.Offset + int64(file.CompressedSize64) + 64<<10
		if end > zipObjInfo.Size {

			}
		}
	}()

	go c.refreshKMSMasterKeyCache(logger)
	return c, nil
}

// Request KES keep an up-to-date copy of the KMS master key to allow minio to start up even if KMS is down. The
// cached key may still be evicted if the period of this function is longer than that of KES .cache.expiry.unused
func (c *kesClient) refreshKMSMasterKeyCache(logger Logger) {
	ctx := context.Background()

				return
			} else if rec != nil {
				stack := debug.Stack()
				logger.Error("panic: \"%s %s\": %v\n%s", r.Method, r.URL, rec, string(stack))
				// Try to write an error response, upstream may not have written header.
				writeErrorResponse(r.Context(), w, errorCodes.ToAPIErr(ErrInternalError), r.URL)
				return
			}
		}()
		h.ServeHTTP(w, r)
	})
}

// in case of SSE-S3. However, storing the ETag of an encrypted
// object in plaintext may reveal some information about the object.
// For example, two objects with the same ETag are identical with
// a very high probability.
//
// Therefore, an S3 implementation may encrypt an ETag before storing
// it. In this case, the stored ETag may not be a well-formed S3 ETag.
// For example, it can be larger due to a checksum added by authenticated

// listPathRaw will list a path on the provided drives.
// See listPathRawOptions on how results are delivered.
// Directories are always returned.
// Cache will be bypassed.
// Context cancellation will be respected but may take a while to effectuate.
func listPathRaw(ctx context.Context, opts listPathRawOptions) (err error) {
	disks := opts.disks
	if len(disks) == 0 {
		return fmt.Errorf("listPathRaw: 0 drives provided")
	}

func RegisterHelpSubSys(helpKVSMap map[string]HelpKVS) {
	for subSys, hkvs := range helpKVSMap {
		HelpSubSysMap[subSys] = hkvs
	}
}

// HelpDeprecatedSubSysMap - help for all deprecated sub-systems, that may be
// removed in the future.
var HelpDeprecatedSubSysMap = map[string]HelpKV{}

// RegisterHelpDeprecatedSubSys - saves input help KVS for deprecated
// sub-systems globally. Should be called only once at init.