def validQuery(self, portOnServer, portOnClient):
        serverAddr = self.transport.getHost().host, portOnServer
        clientAddr = self.transport.getPeer().host, portOnClient
        defer.maybeDeferred(self.lookup, serverAddr, clientAddr
            ).addCallback(self._cbLookup, portOnServer, portOnClient
            ).addErrback(self._ebLookup, portOnServer, portOnClient
            )
Called when a valid query is received to look up and deliver the
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/protocols/ident.py/IdentServer.validQuery