PutObject: fix create folder bug

weed/s3api/s3api_object_handlers.go

@@ -57,6 +57,12 @@ func (s3a *S3ApiServer) PutObjectHandler(w http.ResponseWriter, r *http.Request)
 	}
 	defer dataReader.Close()
 
+	if strings.HasSuffix(object, "/") {
+		if err := s3a.mkdir(s3a.option.BucketsPath, bucket+object, nil); err != nil {
+			writeErrorResponse(w, ErrInternalError, r.URL)
+			return
+		}
+	} else {
 		uploadUrl := fmt.Sprintf("http://%s%s/%s%s", s3a.option.Filer, s3a.option.BucketsPath, bucket, object)
 
 		etag, errCode := s3a.putToFiler(r, uploadUrl, dataReader)
@@ -67,6 +73,7 @@ func (s3a *S3ApiServer) PutObjectHandler(w http.ResponseWriter, r *http.Request)
 		}
 
 		setEtag(w, etag)
+	}
 
 	writeSuccessResponseEmpty(w)
 }