skip if entry.Extended map is nil.

weed/s3api/s3api_bucket_handlers.go

@@ -125,12 +125,15 @@ func (s3a *S3ApiServer) DeleteBucketHandler(w http.ResponseWriter, r *http.Reque
 		writeErrorResponse(w, s3err.ErrNoSuchBucket, r.URL)
 		return
 	}
+
+	if entry.Extended != nil {
 		if id, ok := entry.Extended[xhttp.AmzIdentityId]; ok {
 			if string(id) != r.Header.Get(xhttp.AmzIdentityId) {
 				writeErrorResponse(w, s3err.ErrAccessDenied, r.URL)
 				return
 			}
 		}
+	}
 
 	err = s3a.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
 
@@ -166,12 +169,15 @@ func (s3a *S3ApiServer) HeadBucketHandler(w http.ResponseWriter, r *http.Request
 		writeErrorResponse(w, s3err.ErrNoSuchBucket, r.URL)
 		return
 	}
+
+	if entry.Extended != nil {
 		if id, ok := entry.Extended[xhttp.AmzIdentityId]; ok {
 			if string(id) != r.Header.Get(xhttp.AmzIdentityId) {
 				writeErrorResponse(w, s3err.ErrAccessDenied, r.URL)
 				return
 			}
 		}
+	}
 
 	writeSuccessResponseEmpty(w)
 }