trying to access a nil pointer at PeersState.lastConnectedAndDiscovered

[EclesioMeloJunior]

Describe the bug

Inside the ./dot/peerstate/peerstate.go file the method lastConnectedAndDiscovered calls the method getNode with the current condition:

node, err := ps.getNode(peerID)
if err != nil && node.state[set] == notConnected {
    return node.lastConnected[set]
}

However, this condition is not correct because ps.getNode returns nil, ErrPeerDoesNotExist if the peerID is not in the map, so the expression node.state[... will cause a nil pointer panic

Possible Solution

Return the error

node, err := ps.getNode(peerID)
if err != nil {
   return time.Time{}, err
}

if node.state[set] == notConnected {
    return node.lastConnected[set], nil
}

return time.Now(), nil