}

// Verify if request has AWS PreSign Version '4'.
func isRequestPresignedSignatureV4(r *http.Request) bool {
	_, ok := r.Form[xhttp.AmzCredential]
	return ok
}

// Verify request has AWS PreSign Version '2'.
func isRequestPresignedSignatureV2(r *http.Request) bool {
	_, ok := r.Form[xhttp.AmzAccessKeyID]
	return ok
}

// Verify if request has AWS Post policy Signature Version '4'.

	}
}

func getRepReceivedBytesMD(namespace MetricNamespace) MetricDescription {
	helpText := "Total number of bytes replicated to this bucket from another source bucket"
	if namespace == clusterMetricNamespace {
		helpText = "Total number of bytes replicated to this cluster from site replication peer"
	}
	return MetricDescription{
		Namespace: namespace,
		Subsystem: replicationSubsystem,
		Name:      receivedBytes,

		return x, buf, err
	}
	if x.versions < 0 {
		return x, buf, fmt.Errorf("decodeXLHeaders: Negative version count %d", x.versions)
	}
	return x, buf, nil
}

// decodeVersions will decode a number of versions from a buffer
// and perform a callback for each version in order, newest first.
// Any non-nil error is returned.
func decodeVersions(buf []byte, versions int, fn func(idx int, hdr, meta []byte) error) (err error) {

	},
	ErrCastFailed: {
		Code:           "CastFailed",
		Description:    "Attempt to convert from one data type to another using CAST failed in the SQL expression.",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrInvalidCast: {
		Code:           "InvalidCast",
		Description:    "Attempt to convert from one data type to another using CAST failed in the SQL expression.",
		HTTPStatusCode: http.StatusBadRequest,
	},

			}
		}
		z.serverPools[0].erasureDisksMu.Lock()
		xl.getDisks = func() []StorageAPI {
			return erasureDisks
		}
		z.serverPools[0].erasureDisksMu.Unlock()
		// Fetch object from store.
		gr, err := xl.GetObjectNInfo(ctx, bucket, object, nil, nil, opts)
		if err != nil {
			if err != toObjectErr(errErasureReadQuorum, bucket, object) {

	// All unique drives for this deployment
	globalEndpoints EndpointServerPools
	// All unique nodes for this deployment
	globalNodes []Node

	// The name of this local node, fetched from arguments
	globalLocalNodeName    string
	globalLocalNodeNameHex string
	globalNodeNamesHex     = make(map[string]struct{})

	// The global subnet config
	globalSubnetConfig subnet.Config

			if target == legacyEnvLoggerHTTPEndpoint {
				target = config.Default
			}
			loggerTargets = append(loggerTargets, target)
		}

		// Load HTTP logger from the environment if found
		for _, target := range loggerTargets {
			endpoint := getCfgVal(legacyEnvLoggerHTTPEndpoint, target, "")
			if endpoint == "" {
				continue
			}
			url, err := xnet.ParseHTTPURL(endpoint)

test-versioning: install-race
	@echo "Running minio versioning tests"
	@env bash $(PWD)/docs/bucket/versioning/versioning-tests.sh

test-configfile: install-race
	@env bash $(PWD)/docs/distributed/distributed-from-config-file.sh

test-upgrade: install-race
	@echo "Running minio upgrade tests"
	@(env bash $(PWD)/buildscripts/minio-upgrade.sh)

test-race: verifiers build ## builds minio, runs linters, tests (race)

		}
		if len(params) >= 2 {
			apiErr.Object = decodeDirObject(params[1])
		}
		return apiErr
	}
	return err
}

// SignatureDoesNotMatch - when content md5 does not match with what was sent from client.
type SignatureDoesNotMatch struct{}

func (e SignatureDoesNotMatch) Error() string {
	return "The request signature we calculated does not match the signature you provided. Check your key and signing method."
}

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

	uploadID := r.Form.Get(xhttp.UploadID)
	partIDString := r.Form.Get(xhttp.PartNumber)

	partID, err := strconv.Atoi(partIDString)
	if err != nil || partID <= 0 {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidPart), r.URL)
		return
	}