Update dependencies (#1841)

vendor/github.com/minio/minio-go/v7/Makefile

@@ -9,7 +9,7 @@ checks: lint vet test examples functional-test
 
 lint:
 	@mkdir -p ${GOPATH}/bin
-	@echo "Installing golangci-lint" && curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOPATH)/bin v1.40.1
+	@echo "Installing golangci-lint" && curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOPATH)/bin v1.45.2
 	@echo "Running $@ check"
 	@GO111MODULE=on ${GOPATH}/bin/golangci-lint cache clean
 	@GO111MODULE=on ${GOPATH}/bin/golangci-lint run --timeout=5m --config ./.golangci.yml

vendor/github.com/minio/minio-go/v7/api-bucket-notification.go

@@ -103,7 +103,6 @@ func (c *Client) getBucketNotification(ctx context.Context, bucketName string) (
 		return notification.Configuration{}, err
 	}
 	return processBucketNotificationResponse(bucketName, resp)
-
 }
 
 // processes the GetNotification http response from the server.
@@ -207,7 +206,7 @@ func (c *Client) ListenBucketNotification(ctx context.Context, bucketName, prefi
 			// Use a higher buffer to support unexpected
 			// caching done by proxies
 			bio.Buffer(notificationEventBuffer, notificationCapacity)
-			var json = jsoniter.ConfigCompatibleWithStandardLibrary
+			json := jsoniter.ConfigCompatibleWithStandardLibrary
 
 			// Unmarshal each line, returns marshaled values.
 			for bio.Scan() {

vendor/github.com/minio/minio-go/v7/api-compose-object.go

@@ -202,8 +202,8 @@ func (opts CopySrcOptions) validate() (err error) {
 
 // Low level implementation of CopyObject API, supports only upto 5GiB worth of copy.
 func (c *Client) copyObjectDo(ctx context.Context, srcBucket, srcObject, destBucket, destObject string,
-	metadata map[string]string, srcOpts CopySrcOptions, dstOpts PutObjectOptions) (ObjectInfo, error) {
-
+	metadata map[string]string, srcOpts CopySrcOptions, dstOpts PutObjectOptions,
+) (ObjectInfo, error) {
 	// Build headers.
 	headers := make(http.Header)
 
@@ -285,8 +285,8 @@ func (c *Client) copyObjectDo(ctx context.Context, srcBucket, srcObject, destBuc
 }
 
 func (c *Client) copyObjectPartDo(ctx context.Context, srcBucket, srcObject, destBucket, destObject string, uploadID string,
-	partID int, startOffset int64, length int64, metadata map[string]string) (p CompletePart, err error) {
-
+	partID int, startOffset int64, length int64, metadata map[string]string,
+) (p CompletePart, err error) {
 	headers := make(http.Header)
 
 	// Set source
@@ -338,8 +338,8 @@ func (c *Client) copyObjectPartDo(ctx context.Context, srcBucket, srcObject, des
 // upload via an upload-part-copy request
 // https://docs.aws.amazon.com/AmazonS3/latest/API/mpUploadUploadPartCopy.html
 func (c *Client) uploadPartCopy(ctx context.Context, bucket, object, uploadID string, partNumber int,
-	headers http.Header) (p CompletePart, err error) {
-
+	headers http.Header,
+) (p CompletePart, err error) {
 	// Build query parameters
 	urlValues := make(url.Values)
 	urlValues.Set("partNumber", strconv.Itoa(partNumber))
@@ -492,7 +492,7 @@ func (c *Client) ComposeObject(ctx context.Context, dst CopyDestOptions, srcs ..
 	objParts := []CompletePart{}
 	partIndex := 1
 	for i, src := range srcs {
-		var h = make(http.Header)
+		h := make(http.Header)
 		src.Marshal(h)
 		if dst.Encryption != nil && dst.Encryption.Type() == encrypt.SSEC {
 			dst.Encryption.Marshal(h)

vendor/github.com/minio/minio-go/v7/api-get-object-file.go

@@ -57,7 +57,7 @@ func (c *Client) FGetObject(ctx context.Context, bucketName, objectName, filePat
 	objectDir, _ := filepath.Split(filePath)
 	if objectDir != "" {
 		// Create any missing top level directories.
-		if err := os.MkdirAll(objectDir, 0700); err != nil {
+		if err := os.MkdirAll(objectDir, 0o700); err != nil {
 			return err
 		}
 	}
@@ -72,7 +72,7 @@ func (c *Client) FGetObject(ctx context.Context, bucketName, objectName, filePat
 	filePartPath := filePath + objectStat.ETag + ".part.minio"
 
 	// If exists, open in append mode. If not create it as a part file.
-	filePart, err := os.OpenFile(filePartPath, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0600)
+	filePart, err := os.OpenFile(filePartPath, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0o600)
 	if err != nil {
 		return err
 	}

vendor/github.com/minio/minio-go/v7/api-list.go

@@ -774,7 +774,6 @@ func (c *Client) listIncompleteUploads(ctx context.Context, bucketName, objectPr
 	}(objectMultipartStatCh)
 	// return.
 	return objectMultipartStatCh
-
 }
 
 // listMultipartUploadsQuery - (List Multipart Uploads).

vendor/github.com/minio/minio-go/v7/api-put-object-multipart.go

@@ -38,7 +38,8 @@ import (
 )
 
 func (c *Client) putObjectMultipart(ctx context.Context, bucketName, objectName string, reader io.Reader, size int64,
-	opts PutObjectOptions) (info UploadInfo, err error) {
+	opts PutObjectOptions,
+) (info UploadInfo, err error) {
 	info, err = c.putObjectMultipartNoStream(ctx, bucketName, objectName, reader, opts)
 	if err != nil {
 		errResp := ToErrorResponse(err)
@@ -240,7 +241,8 @@ func (c *Client) initiateMultipartUpload(ctx context.Context, bucketName, object
 
 // uploadPart - Uploads a part in a multipart upload.
 func (c *Client) uploadPart(ctx context.Context, bucketName, objectName, uploadID string, reader io.Reader,
-	partNumber int, md5Base64, sha256Hex string, size int64, sse encrypt.ServerSide) (ObjectPart, error) {
+	partNumber int, md5Base64, sha256Hex string, size int64, sse encrypt.ServerSide,
+) (ObjectPart, error) {
 	// Input validation.
 	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
 		return ObjectPart{}, err
@@ -311,7 +313,8 @@ func (c *Client) uploadPart(ctx context.Context, bucketName, objectName, uploadI
 
 // completeMultipartUpload - Completes a multipart upload by assembling previously uploaded parts.
 func (c *Client) completeMultipartUpload(ctx context.Context, bucketName, objectName, uploadID string,
-	complete completeMultipartUpload, opts PutObjectOptions) (UploadInfo, error) {
+	complete completeMultipartUpload, opts PutObjectOptions,
+) (UploadInfo, error) {
 	// Input validation.
 	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
 		return UploadInfo{}, err
@@ -392,5 +395,4 @@ func (c *Client) completeMultipartUpload(ctx context.Context, bucketName, object
 		Expiration:       expTime,
 		ExpirationRuleID: ruleID,
 	}, nil
-
 }

vendor/github.com/minio/minio-go/v7/api-put-object-streaming.go

@@ -42,8 +42,8 @@ import (
 //  - Any reader which has a method 'ReadAt()'
 //
 func (c *Client) putObjectMultipartStream(ctx context.Context, bucketName, objectName string,
-	reader io.Reader, size int64, opts PutObjectOptions) (info UploadInfo, err error) {
-
+	reader io.Reader, size int64, opts PutObjectOptions,
+) (info UploadInfo, err error) {
 	if !isObject(reader) && isReadAt(reader) && !opts.SendContentMd5 {
 		// Verify if the reader implements ReadAt and it is not a *minio.Object then we will use parallel uploader.
 		info, err = c.putObjectMultipartStreamFromReadAt(ctx, bucketName, objectName, reader.(io.ReaderAt), size, opts)
@@ -91,7 +91,8 @@ type uploadPartReq struct {
 // cleaned automatically when the caller i.e http client closes the
 // stream after uploading all the contents successfully.
 func (c *Client) putObjectMultipartStreamFromReadAt(ctx context.Context, bucketName, objectName string,
-	reader io.ReaderAt, size int64, opts PutObjectOptions) (info UploadInfo, err error) {
+	reader io.ReaderAt, size int64, opts PutObjectOptions,
+) (info UploadInfo, err error) {
 	// Input validation.
 	if err = s3utils.CheckValidBucketName(bucketName); err != nil {
 		return UploadInfo{}, err
@@ -147,7 +148,7 @@ func (c *Client) putObjectMultipartStreamFromReadAt(ctx context.Context, bucketN
 	}
 	close(uploadPartsCh)
 
-	var partsBuf = make([][]byte, opts.getNumThreads())
+	partsBuf := make([][]byte, opts.getNumThreads())
 	for i := range partsBuf {
 		partsBuf[i] = make([]byte, 0, partSize)
 	}
@@ -171,7 +172,7 @@ func (c *Client) putObjectMultipartStreamFromReadAt(ctx context.Context, bucketN
 				}
 
 				n, rerr := readFull(io.NewSectionReader(reader, readOffset, partSize), partsBuf[w-1][:partSize])
-				if rerr != nil && rerr != io.ErrUnexpectedEOF && err != io.EOF {
+				if rerr != nil && rerr != io.ErrUnexpectedEOF && rerr != io.EOF {
 					uploadedPartsCh <- uploadedPartRes{
 						Error: rerr,
 					}
@@ -241,7 +242,8 @@ func (c *Client) putObjectMultipartStreamFromReadAt(ctx context.Context, bucketN
 }
 
 func (c *Client) putObjectMultipartStreamOptionalChecksum(ctx context.Context, bucketName, objectName string,
-	reader io.Reader, size int64, opts PutObjectOptions) (info UploadInfo, err error) {
+	reader io.Reader, size int64, opts PutObjectOptions,
+) (info UploadInfo, err error) {
 	// Input validation.
 	if err = s3utils.CheckValidBucketName(bucketName); err != nil {
 		return UploadInfo{}, err

vendor/github.com/minio/minio-go/v7/api-put-object.go

@@ -229,7 +229,8 @@ func (a completedParts) Less(i, j int) bool { return a[i].PartNumber < a[j].Part
 //
 // NOTE: Upon errors during upload multipart operation is entirely aborted.
 func (c *Client) PutObject(ctx context.Context, bucketName, objectName string, reader io.Reader, objectSize int64,
-	opts PutObjectOptions) (info UploadInfo, err error) {
+	opts PutObjectOptions,
+) (info UploadInfo, err error) {
 	if objectSize < 0 && opts.DisableMultipart {
 		return UploadInfo{}, errors.New("object size must be provided with disable multipart upload")
 	}

vendor/github.com/minio/minio-go/v7/api-putobject-snowball.go

@@ -133,7 +133,7 @@ func (c Client) PutObjectsSnowball(ctx context.Context, bucketName string, opts
 			return f, st.Size(), nil
 		}
 	}
-	var flush = func() error { return nil }
+	flush := func() error { return nil }
 	if !opts.Compress {
 		if !opts.InMemory {
 			// Insert buffer for writes.

vendor/github.com/minio/minio-go/v7/api-select.go

@@ -519,7 +519,7 @@ func (s *SelectResults) start(pipeWriter *io.PipeWriter) {
 	go func() {
 		for {
 			var prelude preludeInfo
-			var headers = make(http.Header)
+			headers := make(http.Header)
 			var err error
 
 			// Create CRC code
@@ -624,7 +624,7 @@ func (p preludeInfo) PayloadLen() int64 {
 // the struct,
 func processPrelude(prelude io.Reader, crc hash.Hash32) (preludeInfo, error) {
 	var err error
-	var pInfo = preludeInfo{}
+	pInfo := preludeInfo{}
 
 	// reads total length of the message (first 4 bytes)
 	pInfo.totalLen, err = extractUint32(prelude)
@@ -752,7 +752,6 @@ func checkCRC(r io.Reader, expect uint32) error {
 
 	if msgCRC != expect {
 		return fmt.Errorf("Checksum Mismatch, MessageCRC of 0x%X does not equal expected CRC of 0x%X", msgCRC, expect)
-
 	}
 	return nil
 }

vendor/github.com/minio/minio-go/v7/api.go

@@ -111,7 +111,7 @@ type Options struct {
 // Global constants.
 const (
 	libraryName    = "minio-go"
-	libraryVersion = "v7.0.23"
+	libraryVersion = "v7.0.24"
 )
 
 // User Agent should always following the below style.
@@ -537,7 +537,7 @@ func (c *Client) executeMethod(ctx context.Context, method string, metadata requ
 
 	var retryable bool       // Indicates if request can be retried.
 	var bodySeeker io.Seeker // Extracted seeker from io.Reader.
-	var reqRetry = MaxRetry  // Indicates how many times we can retry the request
+	reqRetry := MaxRetry     // Indicates how many times we can retry the request
 
 	if metadata.contentBody != nil {
 		// Check if body is seekable then it is retryable.

vendor/github.com/minio/minio-go/v7/bucket-cache.go

@@ -181,6 +181,9 @@ func (c *Client) getBucketLocationRequest(ctx context.Context, bucketName string
 	if h, p, err := net.SplitHostPort(targetURL.Host); err == nil {
 		if targetURL.Scheme == "http" && p == "80" || targetURL.Scheme == "https" && p == "443" {
 			targetURL.Host = h
+			if ip := net.ParseIP(h); ip != nil && ip.To16() != nil {
+				targetURL.Host = "[" + h + "]"
+			}
 		}
 	}
 

vendor/github.com/minio/minio-go/v7/core.go

@@ -63,8 +63,8 @@ func (c Core) CopyObject(ctx context.Context, sourceBucket, sourceObject, destBu
 // CopyObjectPart - creates a part in a multipart upload by copying (a
 // part of) an existing object.
 func (c Core) CopyObjectPart(ctx context.Context, srcBucket, srcObject, destBucket, destObject string, uploadID string,
-	partID int, startOffset, length int64, metadata map[string]string) (p CompletePart, err error) {
-
+	partID int, startOffset, length int64, metadata map[string]string,
+) (p CompletePart, err error) {
 	return c.copyObjectPartDo(ctx, srcBucket, srcObject, destBucket, destObject, uploadID,
 		partID, startOffset, length, metadata)
 }

vendor/github.com/minio/minio-go/v7/functional_tests.go

@@ -61,6 +61,7 @@ const (
 	letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
 	letterIdxMax  = 63 / letterIdxBits   // # of letter indices fitting in 63 bits
 )
+
 const (
 	serverEndpoint = "SERVER_ENDPOINT"
 	accessKey      = "ACCESS_KEY"
@@ -69,8 +70,7 @@ const (
 	enableKMS      = "ENABLE_KMS"
 )
 
-type mintJSONFormatter struct {
-}
+type mintJSONFormatter struct{}
 
 func (f *mintJSONFormatter) Format(entry *log.Entry) ([]byte, error) {
 	data := make(log.Fields, len(entry.Data))
@@ -84,7 +84,7 @@ func (f *mintJSONFormatter) Format(entry *log.Entry) ([]byte, error) {
 			data[k] = v
 		}
 	}
-	var json = jsoniter.ConfigCompatibleWithStandardLibrary
+	json := jsoniter.ConfigCompatibleWithStandardLibrary
 	serialized, err := json.Marshal(data)
 	if err != nil {
 		return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
@@ -168,11 +168,15 @@ func failureLog(testName string, function string, args map[string]interface{}, s
 	var fields log.Fields
 	// log with the fields as per mint
 	if err != nil {
-		fields = log.Fields{"name": "minio-go: " + testName, "function": function, "args": args,
-			"duration": duration.Nanoseconds() / 1000000, "status": "FAIL", "alert": alert, "message": message, "error": err}
+		fields = log.Fields{
+			"name": "minio-go: " + testName, "function": function, "args": args,
+			"duration": duration.Nanoseconds() / 1000000, "status": "FAIL", "alert": alert, "message": message, "error": err,
+		}
 	} else {
-		fields = log.Fields{"name": "minio-go: " + testName, "function": function, "args": args,
-			"duration": duration.Nanoseconds() / 1000000, "status": "FAIL", "alert": alert, "message": message}
+		fields = log.Fields{
+			"name": "minio-go: " + testName, "function": function, "args": args,
+			"duration": duration.Nanoseconds() / 1000000, "status": "FAIL", "alert": alert, "message": message,
+		}
 	}
 	return log.WithFields(cleanEmptyEntries(fields))
 }
@@ -182,8 +186,10 @@ func ignoredLog(testName string, function string, args map[string]interface{}, s
 	// calculate the test case duration
 	duration := time.Since(startTime)
 	// log with the fields as per mint
-	fields := log.Fields{"name": "minio-go: " + testName, "function": function, "args": args,
-		"duration": duration.Nanoseconds() / 1000000, "status": "NA", "alert": strings.Split(alert, " ")[0] + " is NotImplemented"}
+	fields := log.Fields{
+		"name": "minio-go: " + testName, "function": function, "args": args,
+		"duration": duration.Nanoseconds() / 1000000, "status": "NA", "alert": strings.Split(alert, " ")[0] + " is NotImplemented",
+	}
 	return log.WithFields(cleanEmptyEntries(fields))
 }
 
@@ -632,7 +638,7 @@ func testPutObjectReadAt() {
 	defer cleanupBucket(bucketName, c)
 
 	bufSize := dataFileMap["datafile-129-MB"]
-	var reader = getDataReader("datafile-129-MB")
+	reader := getDataReader("datafile-129-MB")
 	defer reader.Close()
 
 	// Save the data
@@ -738,7 +744,7 @@ func testListObjectVersions() {
 	args["objectName"] = objectName
 
 	bufSize := dataFileMap["datafile-10-kB"]
-	var reader = getDataReader("datafile-10-kB")
+	reader := getDataReader("datafile-10-kB")
 
 	_, err = c.PutObject(context.Background(), bucketName, objectName, reader, int64(bufSize), minio.PutObjectOptions{})
 	if err != nil {
@@ -857,7 +863,7 @@ func testStatObjectWithVersioning() {
 	args["objectName"] = objectName
 
 	bufSize := dataFileMap["datafile-10-kB"]
-	var reader = getDataReader("datafile-10-kB")
+	reader := getDataReader("datafile-10-kB")
 
 	_, err = c.PutObject(context.Background(), bucketName, objectName, reader, int64(bufSize), minio.PutObjectOptions{})
 	if err != nil {
@@ -975,7 +981,7 @@ func testGetObjectWithVersioning() {
 
 	// Save the contents of datafiles to check with GetObject() reader output later
 	var buffers [][]byte
-	var testFiles = []string{"datafile-1-b", "datafile-10-kB"}
+	testFiles := []string{"datafile-1-b", "datafile-10-kB"}
 
 	for _, testFile := range testFiles {
 		r := getDataReader(testFile)
@@ -1117,7 +1123,7 @@ func testPutObjectWithVersioning() {
 	// Save the data concurrently.
 	var wg sync.WaitGroup
 	wg.Add(n)
-	var buffers = make([][]byte, n)
+	buffers := make([][]byte, n)
 	var errs [n]error
 	for i := 0; i < n; i++ {
 		r := newRandomReader(int64((1<<20)*i+i), int64(i))
@@ -1258,7 +1264,7 @@ func testCopyObjectWithVersioning() {
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
 	args["objectName"] = objectName
 
-	var testFiles = []string{"datafile-1-b", "datafile-10-kB"}
+	testFiles := []string{"datafile-1-b", "datafile-10-kB"}
 	for _, testFile := range testFiles {
 		r := getDataReader(testFile)
 		buf, err := ioutil.ReadAll(r)
@@ -1395,7 +1401,7 @@ func testConcurrentCopyObjectWithVersioning() {
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
 	args["objectName"] = objectName
 
-	var testFiles = []string{"datafile-10-kB"}
+	testFiles := []string{"datafile-10-kB"}
 	for _, testFile := range testFiles {
 		r := getDataReader(testFile)
 		buf, err := ioutil.ReadAll(r)
@@ -1556,7 +1562,7 @@ func testComposeObjectWithVersioning() {
 	args["objectName"] = objectName
 
 	// var testFiles = []string{"datafile-5-MB", "datafile-10-kB"}
-	var testFiles = []string{"datafile-5-MB", "datafile-10-kB"}
+	testFiles := []string{"datafile-5-MB", "datafile-10-kB"}
 	var testFilesBytes [][]byte
 
 	for _, testFile := range testFiles {
@@ -2036,7 +2042,7 @@ func testPutObjectWithMetadata() {
 	defer cleanupBucket(bucketName, c)
 
 	bufSize := dataFileMap["datafile-129-MB"]
-	var reader = getDataReader("datafile-129-MB")
+	reader := getDataReader("datafile-129-MB")
 	defer reader.Close()
 
 	// Save the data
@@ -2052,7 +2058,8 @@ func testPutObjectWithMetadata() {
 	}
 
 	_, err = c.PutObject(context.Background(), bucketName, objectName, reader, int64(bufSize), minio.PutObjectOptions{
-		ContentType: customContentType})
+		ContentType: customContentType,
+	})
 	if err != nil {
 		logError(testName, function, args, startTime, "", "PutObject failed", err)
 		return
@@ -2282,7 +2289,7 @@ func testGetObjectSeekEnd() {
 
 	// Generate 33K of data.
 	bufSize := dataFileMap["datafile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 
 	// Save the data
@@ -2404,7 +2411,7 @@ func testGetObjectClosedTwice() {
 
 	// Generate 33K of data.
 	bufSize := dataFileMap["datafile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 
 	// Save the data
@@ -2807,7 +2814,7 @@ func testFPutObjectMultipart() {
 	defer cleanupBucket(bucketName, c)
 
 	// Upload 4 parts to utilize all 3 'workers' in multipart and still have a part to upload.
-	var fileName = getMintDataDirFilePath("datafile-129-MB")
+	fileName := getMintDataDirFilePath("datafile-129-MB")
 	if fileName == "" {
 		// Make a temp file with minPartSize bytes of data.
 		file, err := ioutil.TempFile(os.TempDir(), "FPutObjectTest")
@@ -2916,7 +2923,7 @@ func testFPutObject() {
 
 	// Upload 3 parts worth of data to use all 3 of multiparts 'workers' and have an extra part.
 	// Use different data in part for multipart tests to check parts are uploaded in correct order.
-	var fName = getMintDataDirFilePath("datafile-129-MB")
+	fName := getMintDataDirFilePath("datafile-129-MB")
 	if fName == "" {
 		// Make a temp file with minPartSize bytes of data.
 		file, err := ioutil.TempFile(os.TempDir(), "FPutObjectTest")
@@ -3082,7 +3089,7 @@ func testFPutObjectContext() {
 
 	// Upload 1 parts worth of data to use multipart upload.
 	// Use different data in part for multipart tests to check parts are uploaded in correct order.
-	var fName = getMintDataDirFilePath("datafile-1-MB")
+	fName := getMintDataDirFilePath("datafile-1-MB")
 	if fName == "" {
 		// Make a temp file with 1 MiB bytes of data.
 		file, err := ioutil.TempFile(os.TempDir(), "FPutObjectContextTest")
@@ -3134,7 +3141,6 @@ func testFPutObjectContext() {
 	}
 
 	successLogger(testName, function, args, startTime).Info()
-
 }
 
 // Tests FPutObject request when context cancels after timeout
@@ -3183,7 +3189,7 @@ func testFPutObjectContextV2() {
 
 	// Upload 1 parts worth of data to use multipart upload.
 	// Use different data in part for multipart tests to check parts are uploaded in correct order.
-	var fName = getMintDataDirFilePath("datafile-1-MB")
+	fName := getMintDataDirFilePath("datafile-1-MB")
 	if fName == "" {
 		// Make a temp file with 1 MiB bytes of data.
 		file, err := ioutil.TempFile(os.TempDir(), "FPutObjectContextTest")
@@ -3237,7 +3243,6 @@ func testFPutObjectContextV2() {
 	}
 
 	successLogger(testName, function, args, startTime).Info()
-
 }
 
 // Test validates putObject with context to see if request cancellation is honored.
@@ -3283,7 +3288,7 @@ func testPutObjectContext() {
 	defer cleanupBucket(bucketName, c)
 
 	bufSize := dataFileMap["datafile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 	objectName := fmt.Sprintf("test-file-%v", rand.Uint32())
 	args["objectName"] = objectName
@@ -3312,7 +3317,6 @@ func testPutObjectContext() {
 	}
 
 	successLogger(testName, function, args, startTime).Info()
-
 }
 
 // Tests get object with s3zip extensions.
@@ -3428,7 +3432,7 @@ func testGetObjectS3Zip() {
 	lOpts.Prefix = objectName + "/"
 	lOpts.Recursive = true
 	list := c.ListObjects(context.Background(), bucketName, lOpts)
-	var listed = map[string]minio.ObjectInfo{}
+	listed := map[string]minio.ObjectInfo{}
 	for item := range list {
 		if item.Err != nil {
 			break
@@ -3547,7 +3551,7 @@ func testGetObjectReadSeekFunctional() {
 
 	// Generate 33K of data.
 	bufSize := dataFileMap["datafile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -3710,7 +3714,7 @@ func testGetObjectReadAtFunctional() {
 
 	// Generate 33K of data.
 	bufSize := dataFileMap["datafile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -3887,7 +3891,7 @@ func testGetObjectReadAtWhenEOFWasReached() {
 
 	// Generate 33K of data.
 	bufSize := dataFileMap["datafile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -4004,7 +4008,7 @@ func testPresignedPostPolicy() {
 	defer cleanupBucket(bucketName, c)
 
 	// Generate 33K of data.
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -4081,7 +4085,7 @@ func testPresignedPostPolicy() {
 	}
 
 	// Get a 33KB file to upload and test if set post policy works
-	var filePath = getMintDataDirFilePath("datafile-33-kB")
+	filePath := getMintDataDirFilePath("datafile-33-kB")
 	if filePath == "" {
 		// Make a temp file with 33 KB data.
 		file, err := ioutil.TempFile(os.TempDir(), "PresignedPostPolicyTest")
@@ -4228,7 +4232,7 @@ func testCopyObject() {
 
 	// Generate 33K of data.
 	bufSize := dataFileMap["datafile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 
 	// Save the data
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -4421,7 +4425,7 @@ func testSSECEncryptedGetObjectReadSeekFunctional() {
 
 	// Generate 129MiB of data.
 	bufSize := dataFileMap["datafile-129-MB"]
-	var reader = getDataReader("datafile-129-MB")
+	reader := getDataReader("datafile-129-MB")
 	defer reader.Close()
 
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -4603,7 +4607,7 @@ func testSSES3EncryptedGetObjectReadSeekFunctional() {
 
 	// Generate 129MiB of data.
 	bufSize := dataFileMap["datafile-129-MB"]
-	var reader = getDataReader("datafile-129-MB")
+	reader := getDataReader("datafile-129-MB")
 	defer reader.Close()
 
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -4777,7 +4781,7 @@ func testSSECEncryptedGetObjectReadAtFunctional() {
 
 	// Generate 129MiB of data.
 	bufSize := dataFileMap["datafile-129-MB"]
-	var reader = getDataReader("datafile-129-MB")
+	reader := getDataReader("datafile-129-MB")
 	defer reader.Close()
 
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -4960,7 +4964,7 @@ func testSSES3EncryptedGetObjectReadAtFunctional() {
 
 	// Generate 129MiB of data.
 	bufSize := dataFileMap["datafile-129-MB"]
-	var reader = getDataReader("datafile-129-MB")
+	reader := getDataReader("datafile-129-MB")
 	defer reader.Close()
 
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -5972,7 +5976,6 @@ func testFunctional() {
 		"objectName": objectName,
 	}
 	newReader, err := c.GetObject(context.Background(), bucketName, objectName, minio.GetObjectOptions{})
-
 	if err != nil {
 		logError(testName, function, args, startTime, "", "GetObject failed", err)
 		return
@@ -6025,7 +6028,6 @@ func testFunctional() {
 		"expires":    3600 * time.Second,
 	}
 	presignedHeadURL, err := c.PresignedHeadObject(context.Background(), bucketName, objectName, 3600*time.Second, nil)
-
 	if err != nil {
 		logError(testName, function, args, startTime, "", "PresignedHeadObject failed", err)
 		return
@@ -6089,7 +6091,6 @@ func testFunctional() {
 		"expires":    3600 * time.Second,
 	}
 	presignedGetURL, err := c.PresignedGetObject(context.Background(), bucketName, objectName, 3600*time.Second, nil)
-
 	if err != nil {
 		logError(testName, function, args, startTime, "", "PresignedGetObject failed", err)
 		return
@@ -6189,7 +6190,6 @@ func testFunctional() {
 		"expires":    3600 * time.Second,
 	}
 	presignedPutURL, err := c.PresignedPutObject(context.Background(), bucketName, objectName+"-presigned", 3600*time.Second)
-
 	if err != nil {
 		logError(testName, function, args, startTime, "", "PresignedPutObject failed", err)
 		return
@@ -6513,7 +6513,7 @@ func testPutObjectUploadSeekedObject() {
 		// Seek back to the beginning of the file.
 		tempfile.Seek(0, 0)
 	}
-	var length = 100 * humanize.KiByte
+	length := 100 * humanize.KiByte
 	objectName := fmt.Sprintf("test-file-%v", rand.Uint32())
 	args["objectName"] = objectName
 
@@ -6670,7 +6670,7 @@ func testGetObjectClosedTwiceV2() {
 
 	// Generate 33K of data.
 	bufSize := dataFileMap["datafile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 
 	// Save the data
@@ -6982,7 +6982,7 @@ func testGetObjectReadSeekFunctionalV2() {
 
 	// Generate 33K of data.
 	bufSize := dataFileMap["datafile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -7136,7 +7136,7 @@ func testGetObjectReadAtFunctionalV2() {
 
 	// Generate 33K of data.
 	bufSize := dataFileMap["datafile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -7303,7 +7303,7 @@ func testCopyObjectV2() {
 
 	// Generate 33K of data.
 	bufSize := dataFileMap["datafile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 
 	// Save the data
@@ -7412,7 +7412,6 @@ func testComposeObjectErrorCasesWrapper(c *minio.Client) {
 
 	// Make a new bucket in 'us-east-1' (source bucket).
 	err := c.MakeBucket(context.Background(), bucketName, minio.MakeBucketOptions{Region: "us-east-1"})
-
 	if err != nil {
 		logError(testName, function, args, startTime, "", "MakeBucket failed", err)
 		return
@@ -9935,6 +9934,7 @@ func testSSES3EncryptedToSSES3CopyObjectPart() {
 
 	// Do not need to remove destBucketName its same as bucketName.
 }
+
 func testUserMetadataCopying() {
 	// initialize logging params
 	startTime := time.Now()
@@ -10432,7 +10432,7 @@ func testPutObjectNoLengthV2() {
 	args["objectName"] = objectName
 
 	bufSize := dataFileMap["datafile-129-MB"]
-	var reader = getDataReader("datafile-129-MB")
+	reader := getDataReader("datafile-129-MB")
 	defer reader.Close()
 	args["size"] = bufSize
 
@@ -11162,7 +11162,7 @@ func testGetObjectContext() {
 	defer cleanupBucket(bucketName, c)
 
 	bufSize := dataFileMap["datafile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 	// Save the data
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -11216,7 +11216,6 @@ func testGetObjectContext() {
 	}
 
 	successLogger(testName, function, args, startTime).Info()
-
 }
 
 // Test get object with FGetObject with a user provided context
@@ -11265,7 +11264,7 @@ func testFGetObjectContext() {
 	defer cleanupBucket(bucketName, c)
 
 	bufSize := dataFileMap["datafile-1-MB"]
-	var reader = getDataReader("datafile-1-MB")
+	reader := getDataReader("datafile-1-MB")
 	defer reader.Close()
 	// Save the data
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -11304,7 +11303,6 @@ func testFGetObjectContext() {
 	}
 
 	successLogger(testName, function, args, startTime).Info()
-
 }
 
 // Test get object with GetObject with a user provided context
@@ -11354,7 +11352,7 @@ func testGetObjectRanges() {
 	defer cleanupBucket(bucketName, c)
 
 	bufSize := dataFileMap["datafile-129-MB"]
-	var reader = getDataReader("datafile-129-MB")
+	reader := getDataReader("datafile-129-MB")
 	defer reader.Close()
 	// Save the data
 	objectName := randString(60, rng, "")
@@ -11463,7 +11461,7 @@ func testGetObjectACLContext() {
 	defer cleanupBucket(bucketName, c)
 
 	bufSize := dataFileMap["datafile-1-MB"]
-	var reader = getDataReader("datafile-1-MB")
+	reader := getDataReader("datafile-1-MB")
 	defer reader.Close()
 	// Save the data
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -11525,7 +11523,7 @@ func testGetObjectACLContext() {
 	}
 
 	bufSize = dataFileMap["datafile-1-MB"]
-	var reader2 = getDataReader("datafile-1-MB")
+	reader2 := getDataReader("datafile-1-MB")
 	defer reader2.Close()
 	// Save the data
 	objectName = randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -11635,7 +11633,7 @@ func testPutObjectContextV2() {
 	}
 	defer cleanupBucket(bucketName, c)
 	bufSize := dataFileMap["datatfile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 
 	objectName := fmt.Sprintf("test-file-%v", rand.Uint32())
@@ -11665,7 +11663,6 @@ func testPutObjectContextV2() {
 	}
 
 	successLogger(testName, function, args, startTime).Info()
-
 }
 
 // Test get object with GetObject with custom context
@@ -11713,7 +11710,7 @@ func testGetObjectContextV2() {
 	defer cleanupBucket(bucketName, c)
 
 	bufSize := dataFileMap["datafile-33-kB"]
-	var reader = getDataReader("datafile-33-kB")
+	reader := getDataReader("datafile-33-kB")
 	defer reader.Close()
 	// Save the data
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -11765,7 +11762,6 @@ func testGetObjectContextV2() {
 	}
 
 	successLogger(testName, function, args, startTime).Info()
-
 }
 
 // Test get object with FGetObject with custom context
@@ -11814,7 +11810,7 @@ func testFGetObjectContextV2() {
 	defer cleanupBucket(bucketName, c)
 
 	bufSize := dataFileMap["datatfile-1-MB"]
-	var reader = getDataReader("datafile-1-MB")
+	reader := getDataReader("datafile-1-MB")
 	defer reader.Close()
 	// Save the data
 	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
@@ -11855,7 +11851,6 @@ func testFGetObjectContextV2() {
 	}
 
 	successLogger(testName, function, args, startTime).Info()
-
 }
 
 // Test list object v1 and V2
@@ -11915,7 +11910,7 @@ func testListObjects() {
 
 	for i, object := range testObjects {
 		bufSize := dataFileMap["datafile-33-kB"]
-		var reader = getDataReader("datafile-33-kB")
+		reader := getDataReader("datafile-33-kB")
 		defer reader.Close()
 		_, err = c.PutObject(context.Background(), bucketName, object.name, reader, int64(bufSize),
 			minio.PutObjectOptions{ContentType: "binary/octet-stream", StorageClass: object.storageClass})
@@ -12003,7 +11998,7 @@ func testRemoveObjects() {
 	}
 
 	bufSize := dataFileMap["datafile-129-MB"]
-	var reader = getDataReader("datafile-129-MB")
+	reader := getDataReader("datafile-129-MB")
 	defer reader.Close()
 
 	_, err = c.PutObject(context.Background(), bucketName, objectName, reader, int64(bufSize), minio.PutObjectOptions{})

vendor/github.com/minio/minio-go/v7/pkg/credentials/file_minio_client.go

@@ -122,7 +122,7 @@ type config struct {
 // returned if it fails to read from the file.
 func loadAlias(filename, alias string) (hostConfig, error) {
 	cfg := &config{}
-	var json = jsoniter.ConfigCompatibleWithStandardLibrary
+	json := jsoniter.ConfigCompatibleWithStandardLibrary
 
 	configBytes, err := ioutil.ReadFile(filename)
 	if err != nil {

vendor/github.com/minio/minio-go/v7/pkg/credentials/iam_aws.go

@@ -19,6 +19,7 @@ package credentials
 
 import (
 	"bufio"
+	"context"
 	"errors"
 	"fmt"
 	"io/ioutil"
@@ -254,7 +255,10 @@ func getEcsTaskCredentials(client *http.Client, endpoint string, token string) (
 }
 
 func fetchIMDSToken(client *http.Client, endpoint string) (string, error) {
-	req, err := http.NewRequest(http.MethodPut, endpoint+tokenPath, nil)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodPut, endpoint+tokenPath, nil)
 	if err != nil {
 		return "", err
 	}

vendor/github.com/minio/minio-go/v7/pkg/credentials/sts_client_grants.go

@@ -105,8 +105,8 @@ func NewSTSClientGrants(stsEndpoint string, getClientGrantsTokenExpiry func() (*
 }
 
 func getClientGrantsCredentials(clnt *http.Client, endpoint string,
-	getClientGrantsTokenExpiry func() (*ClientGrantsToken, error)) (AssumeRoleWithClientGrantsResponse, error) {
-
+	getClientGrantsTokenExpiry func() (*ClientGrantsToken, error),
+) (AssumeRoleWithClientGrantsResponse, error) {
 	accessToken, err := getClientGrantsTokenExpiry()
 	if err != nil {
 		return AssumeRoleWithClientGrantsResponse{}, err
@@ -138,7 +138,6 @@ func getClientGrantsCredentials(clnt *http.Client, endpoint string,
 		buf, err := ioutil.ReadAll(resp.Body)
 		if err != nil {
 			return AssumeRoleWithClientGrantsResponse{}, err
-
 		}
 		_, err = xmlDecodeAndBody(bytes.NewReader(buf), &errResp)
 		if err != nil {

vendor/github.com/minio/minio-go/v7/pkg/credentials/sts_ldap_identity.go

@@ -174,7 +174,6 @@ func (k *LDAPIdentity) Retrieve() (value Value, err error) {
 		buf, err := ioutil.ReadAll(resp.Body)
 		if err != nil {
 			return value, err
-
 		}
 		_, err = xmlDecodeAndBody(bytes.NewReader(buf), &errResp)
 		if err != nil {

vendor/github.com/minio/minio-go/v7/pkg/credentials/sts_tls_identity.go

@@ -94,7 +94,7 @@ func NewSTSCertificateIdentity(endpoint string, certificate tls.Certificate, opt
 	if _, err := url.Parse(endpoint); err != nil {
 		return nil, err
 	}
-	var identity = &STSCertificateIdentity{
+	identity := &STSCertificateIdentity{
 		STSEndpoint: endpoint,
 		Client: http.Client{
 			Transport: &http.Transport{
@@ -127,7 +127,7 @@ func (i *STSCertificateIdentity) Retrieve() (Value, error) {
 	if err != nil {
 		return Value{}, err
 	}
-	var livetime = i.S3CredentialLivetime
+	livetime := i.S3CredentialLivetime
 	if livetime == 0 {
 		livetime = 1 * time.Hour
 	}
@@ -155,7 +155,6 @@ func (i *STSCertificateIdentity) Retrieve() (Value, error) {
 		buf, err := ioutil.ReadAll(resp.Body)
 		if err != nil {
 			return Value{}, err
-
 		}
 		_, err = xmlDecodeAndBody(bytes.NewReader(buf), &errResp)
 		if err != nil {

vendor/github.com/minio/minio-go/v7/pkg/credentials/sts_web_identity.go

@@ -107,7 +107,8 @@ func NewSTSWebIdentity(stsEndpoint string, getWebIDTokenExpiry func() (*WebIdent
 }
 
 func getWebIdentityCredentials(clnt *http.Client, endpoint, roleARN, roleSessionName string,
-	getWebIDTokenExpiry func() (*WebIdentityToken, error)) (AssumeRoleWithWebIdentityResponse, error) {
+	getWebIDTokenExpiry func() (*WebIdentityToken, error),
+) (AssumeRoleWithWebIdentityResponse, error) {
 	idToken, err := getWebIDTokenExpiry()
 	if err != nil {
 		return AssumeRoleWithWebIdentityResponse{}, err
@@ -156,7 +157,6 @@ func getWebIdentityCredentials(clnt *http.Client, endpoint, roleARN, roleSession
 		buf, err := ioutil.ReadAll(resp.Body)
 		if err != nil {
 			return AssumeRoleWithWebIdentityResponse{}, err
-
 		}
 		_, err = xmlDecodeAndBody(bytes.NewReader(buf), &errResp)
 		if err != nil {

vendor/github.com/minio/minio-go/v7/pkg/encrypt/server-side.go

@@ -101,7 +101,7 @@ func NewSSEKMS(keyID string, context interface{}) (ServerSide, error) {
 	if context == nil {
 		return kms{key: keyID, hasContext: false}, nil
 	}
-	var json = jsoniter.ConfigCompatibleWithStandardLibrary
+	json := jsoniter.ConfigCompatibleWithStandardLibrary
 	serializedContext, err := json.Marshal(context)
 	if err != nil {
 		return nil, err

vendor/github.com/minio/minio-go/v7/pkg/notification/notification.go

@@ -78,11 +78,13 @@ type Arn struct {
 
 // NewArn creates new ARN based on the given partition, service, region, account id and resource
 func NewArn(partition, service, region, accountID, resource string) Arn {
-	return Arn{Partition: partition,
+	return Arn{
+		Partition: partition,
 		Service:   service,
 		Region:    region,
 		AccountID: accountID,
-		Resource:  resource}
+		Resource:  resource,
+	}
 }
 
 // String returns the string format of the ARN

vendor/github.com/minio/minio-go/v7/pkg/replication/replication.go

@@ -432,7 +432,6 @@ func (c *Config) RemoveRule(opts Options) error {
 	}
 	c.Rules = newRules
 	return nil
-
 }
 
 // Rule - a rule for replication configuration.

vendor/github.com/minio/minio-go/v7/pkg/signer/request-signature-streaming.go

@@ -114,8 +114,8 @@ func buildChunkHeader(chunkLen int64, signature string) []byte {
 
 // buildChunkSignature - returns chunk signature for a given chunk and previous signature.
 func buildChunkSignature(chunkData []byte, reqTime time.Time, region,
-	previousSignature, secretAccessKey string) string {
-
+	previousSignature, secretAccessKey string,
+) string {
 	chunkStringToSign := buildChunkStringToSign(reqTime, region,
 		previousSignature, chunkData)
 	signingKey := getSigningKey(secretAccessKey, region, reqTime, ServiceTypeS3)
@@ -200,8 +200,8 @@ func (s *StreamingReader) setStreamingAuthHeader(req *http.Request) {
 // StreamingSignV4 - provides chunked upload signatureV4 support by
 // implementing io.Reader.
 func StreamingSignV4(req *http.Request, accessKeyID, secretAccessKey, sessionToken,
-	region string, dataLen int64, reqTime time.Time) *http.Request {
-
+	region string, dataLen int64, reqTime time.Time,
+) *http.Request {
 	// Set headers needed for streaming signature.
 	prepareStreamingRequest(req, sessionToken, dataLen, reqTime)
 

vendor/github.com/minio/minio-go/v7/retry.go

@@ -110,6 +110,7 @@ func isS3CodeRetryable(s3Code string) (ok bool) {
 // List of HTTP status codes which are retryable.
 var retryableHTTPStatusCodes = map[int]struct{}{
 	429:                            {}, // http.StatusTooManyRequests is not part of the Go 1.5 library, yet
+	499:                            {}, // client closed request, retry. A non-standard status code introduced by nginx.
 	http.StatusInternalServerError: {},
 	http.StatusBadGateway:          {},
 	http.StatusServiceUnavailable:  {},

vendor/github.com/minio/minio-go/v7/utils.go

@@ -105,21 +105,6 @@ func sumMD5Base64(data []byte) string {
 
 // getEndpointURL - construct a new endpoint.
 func getEndpointURL(endpoint string, secure bool) (*url.URL, error) {
-	if strings.Contains(endpoint, ":") {
-		host, _, err := net.SplitHostPort(endpoint)
-		if err != nil {
-			return nil, err
-		}
-		if !s3utils.IsValidIP(host) && !s3utils.IsValidDomain(host) {
-			msg := "Endpoint: " + endpoint + " does not follow ip address or domain name standards."
-			return nil, errInvalidArgument(msg)
-		}
-	} else {
-		if !s3utils.IsValidIP(endpoint) && !s3utils.IsValidDomain(endpoint) {
-			msg := "Endpoint: " + endpoint + " does not follow ip address or domain name standards."
-			return nil, errInvalidArgument(msg)
-		}
-	}
 	// If secure is false, use 'http' scheme.
 	scheme := "https"
 	if !secure {
@@ -176,12 +161,18 @@ func isValidEndpointURL(endpointURL url.URL) error {
 	if endpointURL.Path != "/" && endpointURL.Path != "" {
 		return errInvalidArgument("Endpoint url cannot have fully qualified paths.")
 	}
-	if strings.Contains(endpointURL.Host, ".s3.amazonaws.com") {
+	host := endpointURL.Hostname()
+	if !s3utils.IsValidIP(host) && !s3utils.IsValidDomain(host) {
+		msg := "Endpoint: " + endpointURL.Host + " does not follow ip address or domain name standards."
+		return errInvalidArgument(msg)
+	}
+
+	if strings.Contains(host, ".s3.amazonaws.com") {
 		if !s3utils.IsAmazonEndpoint(endpointURL) {
 			return errInvalidArgument("Amazon S3 endpoint should be 's3.amazonaws.com'.")
 		}
 	}
-	if strings.Contains(endpointURL.Host, ".googleapis.com") {
+	if strings.Contains(host, ".googleapis.com") {
 		if !s3utils.IsGoogleEndpoint(endpointURL) {
 			return errInvalidArgument("Google Cloud Storage endpoint should be 'storage.googleapis.com'.")
 		}
@@ -513,8 +504,10 @@ func isAmzHeader(headerKey string) bool {
 	return strings.HasPrefix(key, "x-amz-meta-") || strings.HasPrefix(key, "x-amz-grant-") || key == "x-amz-acl" || isSSEHeader(headerKey)
 }
 
-var md5Pool = sync.Pool{New: func() interface{} { return md5.New() }}
-var sha256Pool = sync.Pool{New: func() interface{} { return sha256.New() }}
+var (
+	md5Pool    = sync.Pool{New: func() interface{} { return md5.New() }}
+	sha256Pool = sync.Pool{New: func() interface{} { return sha256.New() }}
+)
 
 func newMd5Hasher() md5simd.Hasher {
 	return hashWrapper{Hash: md5Pool.Get().(hash.Hash), isMD5: true}