Prevent unbanning of disconnected peers (#1822)

## Issue Addressed

Further testing revealed another edge case where we attempt to unban a peer that can be in a disconnected start. Although this causes no real issue, it does log an error to the user. 

This PR adds a check to prevent this edge case and prevents the error being logged to the user.
This commit is contained in:
Age Manning 2020-10-24 05:24:20 +00:00
parent a3cc1a1e0f
commit 7453f39d68

View File

@ -678,9 +678,6 @@ impl<TSpec: EthSpec> PeerManager<TSpec> {
ScoreState::Disconnected => {
debug!(self.log, "Peer transitioned to disconnect state"; "peer_id" => peer_id.to_string(), "score" => info.score().to_string(), "past_state" => previous_state.to_string());
// disconnect the peer if it's currently connected or dialing
if info.is_banned() {
to_unban_peers.push(peer_id.clone());
}
if info.is_connected_or_dialing() {
// Change the state to inform that we are disconnecting the peer.
info.disconnecting(false);
@ -688,12 +685,16 @@ impl<TSpec: EthSpec> PeerManager<TSpec> {
peer_id.clone(),
GoodbyeReason::BadScore,
));
} else if info.is_banned() {
to_unban_peers.push(peer_id.clone());
}
}
ScoreState::Healthy => {
debug!(self.log, "Peer transitioned to healthy state"; "peer_id" => peer_id.to_string(), "score" => info.score().to_string(), "past_state" => previous_state.to_string());
// unban the peer if it was previously banned.
to_unban_peers.push(peer_id.clone());
if info.is_banned() {
to_unban_peers.push(peer_id.clone());
}
}
}
}