config=Config(signature_version='s3v4'),
        region_name='us-east-1')


def _add_header(request, **kwargs):
    request.headers.add_header('x-minio-extract', 'true')
event_system = s3.meta.events
event_system.register_first('before-sign.s3.*', _add_header)

# List zip contents
response = s3.list_objects_v2(Bucket="your-bucket", Prefix="path/to/file.zip/")
print(response)

package cmd

import (
	"os"
)

var (
	// Disallow updating access times
	readMode = os.O_RDONLY | 0x40000 // O_NOATIME

	// Write with data sync only used only for `xl.meta` writes
	writeMode = 0x1000 // O_DSYNC

		v1=$?
		nextInES=$(($1 + 1)) && [ $nextInES -gt 3 ] && nextInES=1
		foundFiles1=$(find ${WORK_DIR}/$1/1/ | grep -v .minio.sys | grep xl.meta | wc -l)
		foundFiles2=$(find ${WORK_DIR}/$nextInES/1/ | grep -v .minio.sys | grep xl.meta | wc -l)
		test $foundFiles1 -eq $foundFiles2
		v2=$?
		[ $v1 == 0 -a $v2 == 0 ] && return 0
		sleep 10
	done
	return 1
}

function purge() {

	}
	// Validate all the test cases.
	for i, tt := range testCases {
		formValues := make(http.Header)
		formValues.Set("Bucket", tt.Bucket)
		formValues.Set("Key", tt.Key)
		formValues.Set("Content-Type", tt.ContentType)
		formValues.Set("X-Amz-Date", tt.XAmzDate)
		formValues.Set("X-Amz-Meta-Uuid", tt.XAmzMetaUUID)

		name           string
	}{
		{
			meta:           meta,
			pools:          pools,
			name:           "Correct",
			expectedErr:    false,
			expectedUpdate: false,
		},
		{
			meta:           meta,
			pools:          newPools,
			name:           "Correct-Update",
			expectedErr:    false,
			expectedUpdate: true,
		},
		{
			meta:           meta,
			pools:          reducedPools,

func checkMetaHeaders(signedHeadersMap http.Header, r *http.Request) APIErrorCode {
	// check values from http header
	for k, val := range r.Header {
		if stringsHasPrefixFold(k, "X-Amz-Meta-") {
			if signedHeadersMap.Get(k) == val[0] {
				continue
			}
			return ErrUnsignedHeaders
		}
	}

	return ErrNone

		{
			header: http.Header{
				"X-Amz-Meta-Appid":   []string{"amz-meta"},
				"X-Minio-Meta-Appid": []string{"minio-meta"},
			},
			metadata: map[string]string{
				"X-Amz-Meta-Appid":   "amz-meta",
				"X-Minio-Meta-Appid": "minio-meta",
			},
			shouldFail: false,
		},
		// Fail if header key is not in canonicalized form
		{
			header: http.Header{
				"x-amz-meta-appid": []string{"amz-meta"},
			},

## Description of `xl.meta`

`xl.meta` is a new self describing backend format used by MinIO to support AWS S3 compatible versioning.
This file is the source of truth for each `version` at rest. `xl.meta` is a msgpack file serialized from a
well defined data structure. To understand `xl.meta` here are the few things to start with

	fi.Erasure.Index = 1
	if !fi.IsValid() {
		t.Fatalf("unable to get xl meta")
	}

	testCases := []struct {
		meta   map[string]string
		remote bool
	}{
		{
			// restore in progress
			meta: map[string]string{
				xhttp.AmzRestore: ongoingRestoreObj().String(),
			},
			remote: true,
		},
		{
			// restore completed
			meta: map[string]string{

coverage.txt
.vscode/
*.tar.bz2
parts/
prime/
stage/
.sia_temp/
config.json
node_modules/
mc.*
s3-check-md5*
xl-meta*
healing-*
inspect*.zip
200M*
hash-set
minio.RELEASE*
mc
nancy
inspects/*
.bin/
*.gz
docs/debugging/s3-verify/s3-verify
docs/debugging/xl-meta/xl-meta
docs/debugging/s3-check-md5/s3-check-md5
docs/debugging/hash-set/hash-set
docs/debugging/healing-bin/healing-bin