rename s3 tag prefix.

weed/s3api/filer_util_tags.go

@@ -7,7 +7,7 @@ import (
 )
 
 const (
-	S3TAG_PREFIX = "s3-tag-"
+	S3TAG_PREFIX = "x-amz-tagging-"
 )
 
 func (s3a *S3ApiServer) getTags(parentDirectoryPath string, entryName string) (tags map[string]string, err error) {

weed/server/filer_server_handlers_read.go

@@ -97,7 +97,7 @@ func (fs *FilerServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request,
 	if r.Method == "GET" {
 		tagCount := 0
 		for k, _ := range entry.Extended {
-			if strings.HasPrefix(k, "s3-tag-") {
+			if strings.HasPrefix(k, "x-amz-tagging") {
 				tagCount++
 			}
 		}