writeSTSErrorResponse(ctx, w, ErrSTSInvalidParameterValue, err)
		return
	}

	if r.Form.Get(stsVersion) != stsAPIVersion {
		writeSTSErrorResponse(ctx, w, ErrSTSMissingParameter, fmt.Errorf("Invalid STS API version %s, expecting %s", r.Form.Get(stsVersion), stsAPIVersion))
		return
	}

	action := r.Form.Get(stsAction)
	switch action {
	case assumeRole:
	default:

	for k, v := range req.Form {
		if !defaultSigParams.Contains(k) {
			query[k] = v
		}
	}

	// Get the encoded query.
	encodedQuery := query.Encode()

	// Verify if date query is same.
	if req.Form.Get(xhttp.AmzDate) != query.Get(xhttp.AmzDate) {
		return ErrSignatureDoesNotMatch
	}
	// Verify if expires query is same.
	if req.Form.Get(xhttp.AmzExpires) != query.Get(xhttp.AmzExpires) {

	if objectAPI == nil {
		return
	}

	sizeStr := r.Form.Get(peerRESTSize)
	durationStr := r.Form.Get(peerRESTDuration)
	concurrentStr := r.Form.Get(peerRESTConcurrent)
	storageClass := strings.TrimSpace(r.Form.Get(peerRESTStorageClass))
	customBucket := strings.TrimSpace(r.Form.Get(peerRESTBucket))
	autotune := r.Form.Get("autotune") == "true"
	noClear := r.Form.Get("noclear") == "true"

      exercising permissions granted by this License.

      "Source" form shall mean the preferred form for making modifications,
      including but not limited to software source code, documentation
      source, and configuration files.

      "Object" form shall mean any form resulting from mechanical
      transformation or translation of a Source form, including but
      not limited to compiled object code, generated documentation,

	if err != nil {
		return false, err
	}

	// Handle large OPA responses when OPA URL is of
	// form http://localhost:8181/v1/data/httpapi/authz
	type opaResultAllow struct {
		Result struct {
			Allow bool `json:"allow"`
		} `json:"result"`
	}

	// Handle simpler OPA responses when OPA URL is of
	// form http://localhost:8181/v1/data/httpapi/authz/allow
	type opaResult struct {
		Result bool `json:"result"`
	}

	var partNumber int
	var err error
	if pn := r.Form.Get(xhttp.PartNumber); pn != "" {
		partNumber, err = strconv.Atoi(pn)
		if err != nil {
			return opts, err
		}
		if isMaxPartID(partNumber) {
			return opts, errInvalidMaxParts
		}
		if partNumber <= 0 {
			return opts, errInvalidArgument
		}
	}

	vid := strings.TrimSpace(r.Form.Get(xhttp.VersionID))
	if vid != "" && vid != nullVersionID {

			default:
				// Condition should be valid.
				return parsedPolicy, fmt.Errorf("Unknown type %s of conditional field value %s found in POST policy form",
					reflect.TypeOf(condt).String(), condt)
			}
		default:
			return parsedPolicy, fmt.Errorf("Unknown field %s of type %s found in POST policy form",
				condt, reflect.TypeOf(condt).String())
		}
	}
	return parsedPolicy, nil
}

	xhttp "github.com/minio/minio/internal/http"
	"github.com/minio/minio/internal/logger"
	"github.com/minio/minio/internal/mcontext"
)

const (
	// Maximum allowed form data field values. 64MiB is a guessed practical value
	// which is more than enough to accommodate any form data fields and headers.
	requestFormDataSize = 64 * humanize.MiByte

	// For any HTTP request, request body should be not more than 16GiB + requestFormDataSize

original works of authorship and other material subject to copyright
and certain other rights specified in the public license below. The
following considerations are for informational purposes only, are not
exhaustive, and do not form part of our licenses.

     Considerations for licensors: Our public licenses are
     intended for use by those authorized to give the public
     permission to use material in ways otherwise restricted by

	Key            *ObjectKey `parser:"  @@"`               // ['name'] and .name forms
	Index          *int       `parser:"| \"[\" @Int \"]\""` // [3] form
	ObjectWildcard bool       `parser:"| @\".*\""`          // .* form
	ArrayWildcard  bool       `parser:"| @\"[*]\""`         // [*] form
}

// JSONPath represents a keypath.
// Instances should be treated idempotent and not change once created.
type JSONPath struct {