Finger is a module built for parsing messages of the Finger protocol. It reads the QUERY at the client side, parses it and - if the local security policy permits - sends it to the server. When the RESPONSE arrives it processes the RESPONSE and sends it back to the client. It is possible to prepend and/or append a string to the response. Requests can also be manipulated in various ways using the fingerRequest function, which is called by the proxy if it is defined.

Length of the username, the line and the hostname can be limited by setting various attributes. Finger proxy also has the capability of limiting the number of hosts in a request, e.g.: finger user@domain@server normally results in fingering 'user@domain' performed by the host 'server'. By default, the proxy removes everything after and including the first '@' character. This behavior can be modified by setting the max_hop_count attribute to a non-zero value.

def MyFingerProxy(FingerProxy):
        def config(self):
                FingerProxy.config(self)
                self.max_hop_count = 2
                self.timeout = 30