[#XX] TMP MD5 fix

Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>

api/handler/get.go

@@ -1,6 +1,8 @@
 package handler
 
 import (
+	"crypto/md5"
+	"encoding/base64"
 	"fmt"
 	"net/http"
 	"net/url"
@@ -79,6 +81,8 @@ func addSSECHeaders(responseHeader http.Header, requestHeader http.Header) {
 	responseHeader.Set(api.AmzServerSideEncryptionCustomerKeyMD5, requestHeader.Get(api.AmzServerSideEncryptionCustomerKeyMD5))
 }
 
+var dummyMD5 = base64.StdEncoding.EncodeToString(md5.New().Sum(nil))
+
 func writeHeaders(h http.Header, requestHeader http.Header, extendedInfo *data.ExtendedObjectInfo, tagSetLength int, isBucketUnversioned bool) {
 	info := extendedInfo.ObjectInfo
 	if len(info.ContentType) > 0 && h.Get(api.ContentType) == "" {
@@ -96,6 +100,7 @@ func writeHeaders(h http.Header, requestHeader http.Header, extendedInfo *data.E
 	}
 
 	h.Set(api.ETag, info.HashSum)
+	h.Set(api.ContentMD5, dummyMD5)
 	h.Set(api.AmzTaggingCount, strconv.Itoa(tagSetLength))
 
 	if !isBucketUnversioned {

api/layer/object.go

@@ -377,6 +377,7 @@ func (n *layer) headLastVersionIfNotDeleted(ctx context.Context, bkt *data.Bucke
 		return nil, err
 	}
 	objInfo := objectInfoFromMeta(bkt, meta)
+	//objInfo.HashSum = node.ETag
 
 	extObjInfo := &data.ExtendedObjectInfo{
 		ObjectInfo:  objInfo,
@@ -429,6 +430,7 @@ func (n *layer) headVersion(ctx context.Context, bkt *data.BucketInfo, p *HeadOb
 		return nil, err
 	}
 	objInfo := objectInfoFromMeta(bkt, meta)
+	//objInfo.HashSum = foundVersion.ETag
 
 	extObjInfo := &data.ExtendedObjectInfo{
 		ObjectInfo:  objInfo,
@@ -460,6 +462,7 @@ func (n *layer) objectPutAndHash(ctx context.Context, prm PrmObjectCreate, bktIn
 	n.prepareAuthParameters(ctx, &prm.PrmAuth, bktInfo.Owner)
 	var size uint64
 	hash := sha256.New()
+	//hash := md5.New()
 	prm.Payload = wrapReader(prm.Payload, 64*1024, func(buf []byte) {
 		size += uint64(len(buf))
 		hash.Write(buf)