Update github.com/minio/minio-go

This corrects a severe performance regression when the current minio
server is used as a backend, see
https://github.com/minio/minio/issues/4275

vendor/src/github.com/minio/minio-go/api-put-object-progress.go

@@ -20,6 +20,7 @@ import (
 	"io"
 	"strings"
 
+	"github.com/minio/minio-go/pkg/encrypt"
 	"github.com/minio/minio-go/pkg/s3utils"
 )
 
@@ -30,6 +31,29 @@ func (c Client) PutObjectWithProgress(bucketName, objectName string, reader io.R
 	return c.PutObjectWithMetadata(bucketName, objectName, reader, metaData, progress)
 }
 
+// PutEncryptedObject - Encrypt and store object.
+func (c Client) PutEncryptedObject(bucketName, objectName string, reader io.Reader, encryptMaterials encrypt.Materials, metaData map[string][]string, progress io.Reader) (n int64, err error) {
+
+	if encryptMaterials == nil {
+		return 0, ErrInvalidArgument("Unable to recognize empty encryption properties")
+	}
+
+	if err := encryptMaterials.SetupEncryptMode(reader); err != nil {
+		return 0, err
+	}
+
+	if metaData == nil {
+		metaData = make(map[string][]string)
+	}
+
+	// Set the necessary encryption headers, for future decryption.
+	metaData[amzHeaderIV] = []string{encryptMaterials.GetIV()}
+	metaData[amzHeaderKey] = []string{encryptMaterials.GetKey()}
+	metaData[amzHeaderMatDesc] = []string{encryptMaterials.GetDesc()}
+
+	return c.PutObjectWithMetadata(bucketName, objectName, encryptMaterials, metaData, progress)
+}
+
 // PutObjectWithMetadata - with metadata.
 func (c Client) PutObjectWithMetadata(bucketName, objectName string, reader io.Reader, metaData map[string][]string, progress io.Reader) (n int64, err error) {
 	// Input validation.
@@ -75,24 +99,6 @@ func (c Client) PutObjectWithMetadata(bucketName, objectName string, reader io.R
 		return c.putObjectNoChecksum(bucketName, objectName, reader, size, metaData, progress)
 	}
 
-	// NOTE: S3 doesn't allow anonymous multipart requests.
-	if s3utils.IsAmazonEndpoint(c.endpointURL) && c.anonymous {
-		if size <= -1 {
-			return 0, ErrorResponse{
-				Code:       "NotImplemented",
-				Message:    "Content-Length cannot be negative for anonymous requests.",
-				Key:        objectName,
-				BucketName: bucketName,
-			}
-		}
-		if size > maxSinglePutObjectSize {
-			return 0, ErrEntityTooLarge(size, maxSinglePutObjectSize, bucketName, objectName)
-		}
-		// Do not compute MD5 for anonymous requests to Amazon
-		// S3. Uploads up to 5GiB in size.
-		return c.putObjectNoChecksum(bucketName, objectName, reader, size, metaData, progress)
-	}
-
 	// putSmall object.
 	if size < minPartSize && size >= 0 {
 		return c.putObjectSingle(bucketName, objectName, reader, size, metaData, progress)
@@ -115,3 +121,81 @@ func (c Client) PutObjectWithMetadata(bucketName, objectName string, reader io.R
 	}
 	return n, nil
 }
+
+// PutObjectStreaming using AWS streaming signature V4
+func (c Client) PutObjectStreaming(bucketName, objectName string, reader io.Reader) (n int64, err error) {
+	return c.PutObjectStreamingWithProgress(bucketName, objectName, reader, nil, nil)
+}
+
+// PutObjectStreamingWithMetadata using AWS streaming signature V4
+func (c Client) PutObjectStreamingWithMetadata(bucketName, objectName string, reader io.Reader, metadata map[string][]string) (n int64, err error) {
+	return c.PutObjectStreamingWithProgress(bucketName, objectName, reader, metadata, nil)
+}
+
+// PutObjectStreamingWithProgress using AWS streaming signature V4
+func (c Client) PutObjectStreamingWithProgress(bucketName, objectName string, reader io.Reader, metadata map[string][]string, progress io.Reader) (n int64, err error) {
+	// NOTE: Streaming signature is not supported by GCS.
+	if s3utils.IsGoogleEndpoint(c.endpointURL) {
+		return 0, ErrorResponse{
+			Code:       "NotImplemented",
+			Message:    "AWS streaming signature v4 is not supported with Google Cloud Storage",
+			Key:        objectName,
+			BucketName: bucketName,
+		}
+	}
+	// This method should return error with signature v2 minioClient.
+	if c.signature.isV2() {
+		return 0, ErrorResponse{
+			Code:       "NotImplemented",
+			Message:    "AWS streaming signature v4 is not supported with minio client initialized for AWS signature v2",
+			Key:        objectName,
+			BucketName: bucketName,
+		}
+	}
+
+	// Size of the object.
+	var size int64
+
+	// Get reader size.
+	size, err = getReaderSize(reader)
+	if err != nil {
+		return 0, err
+	}
+
+	// Check for largest object size allowed.
+	if size > int64(maxMultipartPutObjectSize) {
+		return 0, ErrEntityTooLarge(size, maxMultipartPutObjectSize, bucketName, objectName)
+	}
+
+	// If size cannot be found on a stream, it is not possible
+	// to upload using streaming signature, fall back to multipart.
+	if size < 0 {
+		return c.putObjectMultipartStream(bucketName, objectName, reader, size, metadata, progress)
+	}
+
+	// Set signature type to streaming signature v4.
+	c.signature = SignatureV4Streaming
+
+	if size < minPartSize && size >= 0 {
+		return c.putObjectNoChecksum(bucketName, objectName, reader, size, metadata, progress)
+	}
+
+	// For all sizes greater than 64MiB do multipart.
+	n, err = c.putObjectMultipartStreamNoChecksum(bucketName, objectName, reader, size, metadata, progress)
+	if err != nil {
+		errResp := ToErrorResponse(err)
+		// Verify if multipart functionality is not available, if not
+		// fall back to single PutObject operation.
+		if errResp.Code == "AccessDenied" && strings.Contains(errResp.Message, "Access Denied") {
+			// Verify if size of reader is greater than '5GiB'.
+			if size > maxSinglePutObjectSize {
+				return 0, ErrEntityTooLarge(size, maxSinglePutObjectSize, bucketName, objectName)
+			}
+			// Fall back to uploading as single PutObject operation.
+			return c.putObjectNoChecksum(bucketName, objectName, reader, size, metadata, progress)
+		}
+		return n, err
+	}
+
+	return n, nil
+}