If an incoming request does not validate correctly then a `400` response will be sent.

## `GZipMiddleware`

Handles GZip responses for any request that includes `"gzip"` in the `Accept-Encoding` header.

The middleware will handle both standard and streaming responses.

//	path: 'bucket/' or '/bucket/' => Heal bucket
//	path: 'bucket/object' => Heal object
type healTask struct {
	bucket    string
	object    string
	versionID string
	opts      madmin.HealOpts
	// Healing response will be sent here
	respCh chan healResult
}

// healResult represents a healing result with a possible error
type healResult struct {
	result madmin.HealResultItem
	err    error
}

//
// returns ErrNone if matches. S3 errors otherwise.
func doesPresignV2SignatureMatch(r *http.Request) APIErrorCode {
	// r.RequestURI will have raw encoded URI as sent by the client.
	tokens := strings.SplitN(r.RequestURI, "?", 2)
	encodedResource := tokens[0]
	encodedQuery := ""
	if len(tokens) == 2 {
		encodedQuery = tokens[1]
	}

	var (
		filteredQueries []string

func formatStatus(s *xdsstatus.ClientConfig_GenericXdsConfig) string {
	switch s.GetConfigStatus() {
	case xdsstatus.ConfigStatus_UNKNOWN:
		return ignoredStatus
	case xdsstatus.ConfigStatus_NOT_SENT:
		return "NOT SENT"
	default:
		status := s.GetConfigStatus().String()
		if s.LastUpdated != nil {
			status += " (" + duration.HumanDuration(time.Since(s.LastUpdated.AsTime())) + ")"
		}
		return status
	}
}

    which was incorrectly matching prefix based on resource
    prefixes instead of exact match.
```

- There is always a possibility of a fix that is new, it is advised that the developer must make sure that the fix is sent upstream, reviewed and merged to the master branch.

## Creating a hotfix branch

	"github.com/minio/minio/internal/logger"
	"github.com/minio/mux"
	"github.com/minio/pkg/v3/policy"
)

const (
	bucketVersioningConfig = "versioning.xml"

	// Maximum size of bucket versioning configuration payload sent to the PutBucketVersioningHandler.
	maxBucketVersioningConfigSize = 1 * humanize.MiByte
)

// PutBucketVersioningHandler - PUT Bucket Versioning.
// ----------

## Request and Response

MinIO will make a `POST` request with a JSON body to the given plugin URL. If the auth token parameter is set, it will be sent as an authorization header.

The JSON body structure can be seen from this sample:

<details><summary>Request Body Sample</summary>

```json
{
  "input": {
    "account": "minio",

* Create a "`security` scheme" using `HTTPBasic`.
* Use that `security` with a dependency in your *path operation*.
* It returns an object of type `HTTPBasicCredentials`:
    * It contains the `username` and `password` sent.

{* ../../docs_src/security/tutorial006_an_py39.py hl[4,8,12] *}

When you try to open the URL for the first time (or click the "Execute" button in the docs) the browser will ask you for your username and password:

	// Verify if region is valid.
	sRegion := cred.scope.region
	// Region is set to be empty, we use whatever was sent by the
	// request and proceed further. This is a work-around to address
	// an important problem for ListBuckets() getting signed with
	// different regions.
	if region == "" {
		region = sRegion
	}
	// Should validate region, only if region is set.
	if !isValidRegion(sRegion, region) {

	Op         Op        // Operation. Other fields change based on this value.
	Flags      Flags     // Optional flags.
	Payload    []byte    // Optional payload.
}

// Flags is a set of flags set on a message.
type Flags uint8

func (m message) String() string {
	var res []string
	if m.MuxID != 0 {
		res = append(res, fmt.Sprintf("MuxID: %v", m.MuxID))
	}
	if m.Seq != 0 {