obtain client ip address from SimpleXMLRPCServer ?

[stuff@mailzilla.net]

Is it possible to obtain the client's ip address from a
SimpleXMLRPCSer ver instance or subclass instance? When running
SimpleXMLRPCSer ver with logRequests = 1, the xmlrpc server prints out
the fqdn on the console, however, I'm not sure if this information
(either fqdn or ip address) is available to the SimpleXMLRPCSer ver
instance. Can somebody shed some light on how to obtain this
information?

Thanks,

Phil

[Peter Gsellmann]

Re: obtain client ip address from SimpleXMLRPCSer ver ?

stuff@mailzilla .net wrote:
[color=blue]
> Is it possible to obtain the client's ip address from a
> SimpleXMLRPCSer ver instance or subclass instance? When running
> SimpleXMLRPCSer ver with logRequests = 1, the xmlrpc server prints out
> the fqdn on the console, however, I'm not sure if this information
> (either fqdn or ip address) is available to the SimpleXMLRPCSer ver
> instance. Can somebody shed some light on how to obtain this
> information?
>[/color]
The request-handler has the method: address_string( )

Peter

[stuff@mailzilla.net]

Re: obtain client ip address from SimpleXMLRPCSer ver ?

Thanks for the reply Peter. Can you provide a code snippet for
extracting this data. When I print the dir() of the SimpleXMLRPCSer ver
instance I do not see a request_handler attribute or method.

Phil

[Peter Gsellmann]

Re: obtain client ip address from SimpleXMLRPCSer ver ?

stuff@mailzilla .net wrote:
[color=blue]
> Thanks for the reply Peter. Can you provide a code snippet for
> extracting this data. When I print the dir() of the SimpleXMLRPCSer ver
> instance I do not see a request_handler attribute or method.[/color]
this is ok.
In the serverclass-object, there is no such method because the server
doesn't know which client would connect. It is a long-life object.

Each time a client connects the server creates another sort of object,
the so-called request-handler. This is a short-live object which terminates
when the request is answered. Only this object has knowledge of the client
as it holds the connection.

If you make a subclass of SimpleXMLRPCReq uestHandler you can add or
override methods and add a line like this:
print self.address_st ring()

A sample for such subclassing is given in the file SimpleXMLRPCSer ver.py
itself. (usually in /usr/lib/python/ )

Peter

[stuff@mailzilla.net]

Re: obtain client ip address from SimpleXMLRPCSer ver ?

Thanks again Peter. I found 2 potential solutions for obtaining the ip
address of the incoming
connection. The first was to subclass SimpleXMLRPCReq uestHandler class
and pass it
to the SimpleXMLRPCSer ver constructor. In doing so, I could directly
access the client_address via self.client_add ress. This worked just
fine but was a bit overkill.

The other solution I noticed was that SimpleXMLRPCSer ver's (which
ultimately subclasses BaseServer) handle_request method invokes
get_request (which merely calls self.socket.acc ept() -- which returns a
tuple including the ip address). By re-implementing get_request() as
such:

def get_request(sel f):
req = self.socket.acc ept()
ip_address = req[1][0]
return req

I can grab the ip address for internal use and have the get_request
method return the expected data for use by hande_request() .

Now I just need to find a thread-safe way of passing this data back to
the XMLRPC server's registered_inst ance.