[Zope] specify passive ports for ftp

[Brad Clements]

On 7 Feb 2002 at 23:37, ra@burningman.com wrote:

> Actually, I'd be interested in even hearing ways to solve this problem that
> DO involve modifying the source code... I dug into the FTPServer.py code a
> while back to try to tackle this very problem and didn't see where the
> ports were being specified.  Unfortunately, other matters became a bit more
> pressing.  I'd be willing to hack up a way to set the passive ftp ports if
> someone would orient me a bit...

I changed the code in one of my servers to specify the pasv port range.. Now I can't 
remember which instance I changed, or where it was in the code.

It wasn't hard, if that's any help.

You need to change ZServer/medusa/ftp_server.py

class passive_acceptor (asyncore.dispatcher):
        ready = None

        def __init__ (self, control_channel):
                # connect_fun (conn, addr)
                asyncore.dispatcher.__init__ (self)
                self.control_channel = control_channel
                self.create_socket (socket.AF_INET, socket.SOCK_STREAM)
                # bind to an address on the interface that the
                # control connection is coming from.
                self.bind ((
                        self.control_channel.getsockname()[0],
                        0
                        ))
                self.addr = self.getsockname()
                self.listen (1)


As I recall, I put a range loop to try the self.bind over a range of non-privilaged ports. I 
use a range in case a port is in use.


Brad Clements,                bkc@murkworks.com   (315)268-1000
http://www.murkworks.com                          (315)268-9812 Fax
netmeeting: ils://ils.murkworks.com               AOL-IM: BKClements