// Verify if request has valid AWS Signature Version '4'.
func isReqAuthenticated(ctx context.Context, r *http.Request, region string, stype serviceType) (s3Error APIErrorCode) {
	if errCode := reqSignatureV4Verify(r, region, stype); errCode != ErrNone {
		return errCode
	}

	clientETag, err := etag.FromContentMD5(r.Header)
	if err != nil {
		return ErrInvalidDigest
	}

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.HealAdminAction)
	if objectAPI == nil {
		return
	}

	hip, errCode := extractHealInitParams(mux.Vars(r), r.Form, r.Body)
	if errCode != ErrNone {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(errCode), r.URL)
		return
	}

	// Analyze the heal token and route the request accordingly

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

	prefix, keyMarker, uploadIDMarker, delimiter, maxUploads, encodingType, errCode := getBucketMultipartResources(r.Form)
	if errCode != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(errCode), r.URL)
		return
	}

	if maxUploads < 0 {

type errorCodeMap map[APIErrorCode]APIError

func (e errorCodeMap) ToAPIErrWithErr(errCode APIErrorCode, err error) APIError {
	apiErr, ok := e[errCode]
	if !ok {
		apiErr = e[ErrInternalError]
	}
	if err != nil {
		apiErr.Description = fmt.Sprintf("%s (%s)", apiErr.Description, err)
	}
	if region := globalSite.Region(); region != "" {
		if errCode == ErrAuthorizationHeaderMalformed {

				errs[idx] = err
			} else {
				tagSlc[idx] = tgs.ToMap()
			}
		}(idx, tgt)
	}
	wg.Wait()
	for idx, err := range errs {
		errCode := minio.ToErrorResponse(err).Code
		if err != nil && errCode != "NoSuchKey" && errCode != "NoSuchVersion" {
			return nil, proxyResult{Err: err}
		}
		if err == nil {
			tgs, _ = tags.MapToObjectTags(tagSlc[idx])
		}
	}
	if len(errs) == 1 {

			content.StorageClass = filterStorageClass(ctx, object.StorageClass)
		} else {
			content.StorageClass = globalMinioDefaultStorageClass
		}
		if tagErr == ErrNone {
			content.UserTags = object.UserTags
		}
		if metaErr == ErrNone {
			content.UserMetadata = &Metadata{}
			switch kind, _ := crypto.IsEncrypted(object.UserDefined); kind {
			case crypto.S3:

		if s3Error == ErrNone {
			s3Error = checkRequestAuthType(ctx, r, policy.GetObjectVersionAction, bucket, object)
		}
	} else {
		s3Error = checkRequestAuthType(ctx, r, policy.GetObjectAttributesAction, bucket, object)
		if s3Error == ErrNone {
			s3Error = checkRequestAuthType(ctx, r, policy.GetObjectAction, bucket, object)
		}
	}

	if s3Error != ErrNone {

	v := allTierStats{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)

	m := v.Msgsize()
	if buf.Len() > m {
		t.Log("WARNING: TestEncodeDecodeallTierStats Msgsize() is inaccurate")
	}

	vn := allTierStats{}
	err := msgp.Decode(&buf, &vn)
	if err != nil {
		t.Error(err)
	}

	buf.Reset()
	msgp.Encode(&buf, &v)
	err = msgp.NewReader(&buf).Skip()
	if err != nil {
		t.Error(err)
	}

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

	cred, owner, s3Err := validateAdminSignature(ctx, r, "")
	if s3Err != ErrNone {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
		return
	}

	checkDenyOnly := false
	if name == cred.AccessKey {
		// Check that there is no explicit deny - otherwise it's allowed

        }
        draining = false;
        Java8Compatibility.clear(byteBuffer);
      }

      while (true) {
        // We call encode until there is no more input. The last call to encode will have endOfInput
        // == true. Then there is a final call to flush.
        CoderResult result;
        if (doneFlushing) {
          result = CoderResult.UNDERFLOW;