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pythontornado

How to get server IP-address in Tornado?

In my tornado-based application I need to store the server's IP-address (e.g. the address that was used by the user to connect to the server) in session. How to determine this IP-address in Tornado? I'm using Tornado 2.4.1.

Solution

  • If you don't mind throwing in some dependencies, you can do this from a request handler:

    import socket
import urlparse    

hostname = urlparse.urlparse("%s://%s"
    % (self.request.protocol, self.request.host)).hostname

ip_address = socket.gethostbyname(hostname)

    An important thing to note here is that self.request.host can include a port number. That's why it is preferred to parse it using urlparse.