Fix:

prevent selecting peers from topic not in peer topics
2019-07-18 19:39:01 +08:00 · 2019-07-18 19:39:01 +08:00 · 404dc67e83
commit 404dc67e83
parent b5c3420c16
1 changed files with 9 additions and 8 deletions
--- a/libp2p/pubsub/gossipsub.py
+++ b/libp2p/pubsub/gossipsub.py
@ -191,6 +191,7 @@ class GossipSub(IPubsubRouter):
            # There are less than D peers (let this number be x)
            # in the fanout for a topic (or the topic is not in the fanout).
            # Selects the remaining number of peers (D-x) from peers.gossipsub[topic].
+            if topic in self.pubsub.peer_topics:
                gossipsub_peers_in_topic = [peer for peer in self.pubsub.peer_topics[topic]
                                            if peer in self.peers_gossipsub]
                selected_peers = \