AaronFiore/electrum
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interface: validate protocol-version negotiation on client-side too

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related: https://github.com/romanz/electrs/issues/314
This commit is contained in:
SomberNight
2020-11-03 20:45:31 +01:00
parent 70b03cb920
commit de80f68e4d
1 changed files with 3 additions and 0 deletions
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electrum/interface.py
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@@ -631,6 +631,9 @@ class Interface(Logger):
raise GracefulDisconnect(e) # probably 'unsupported protocol version' raise GracefulDisconnect(e) # probably 'unsupported protocol version'
if exit_early: if exit_early:
return return
if ver[1] != version.PROTOCOL_VERSION:
raise GracefulDisconnect(f'server violated protocol-version-negotiation. '
f'we asked for {version.PROTOCOL_VERSION!r}, they sent {ver[1]!r}')
if not self.network.check_interface_against_healthy_spread_of_connected_servers(self): if not self.network.check_interface_against_healthy_spread_of_connected_servers(self):
raise GracefulDisconnect(f'too many connected servers already ' raise GracefulDisconnect(f'too many connected servers already '
f'in bucket {self.bucket_based_on_ipaddress()}') f'in bucket {self.bucket_based_on_ipaddress()}')