whisper: fix empty topic (#15811)

* whisper: fix empty topic * whisper: add check to matchSingleTopic * whisper: add tests * whisper: fix gosimple * whisper: added lastTopicByte const
2018-01-26 14:41:53 +03:00
parent 4dd0727c39
commit 2ef3815af4
6 changed files with 92 additions and 16 deletions
--- a/whisper/whisperv6/api.go
+++ b/whisper/whisperv6/api.go
@ -567,7 +567,7 @@ func (api *PublicWhisperAPI) NewMessageFilter(req Criteria) (string, error) {
 	}

 	if len(req.Topics) > 0 {
-		topics = make([][]byte, 1)
+		topics = make([][]byte, 0, len(req.Topics))
 		for _, topic := range req.Topics {
 			topics = append(topics, topic[:])
 		}