[Python-bugs-list] [Bug #126851] ftplib.py should default to passive mode

[noreply@sourceforge.net]

Bug #126851, was updated on 2000-Dec-26 12:07
Here is a current snapshot of the bug.

Project: Python
Category: Python Library
Status: Open
Resolution: None
Bug Group: None
Priority: 5
Submitted by: flight
Assigned to : nobody
Summary: ftplib.py should default to passive mode

Details: For the Debian package, there has been the request that the ftplib
module should by default use passive FTP. Any comments


[Forwarded from the Debian bug tracking system, bug#71823]
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=71823&repeatmerged=yes

Sender: Mike Fisk <mfisk@lanl.gov>
Package: python-base
Version: 1.5.2-10

This is an upstream bug that has existed for quite a while (probably
forever).

With many systems living behind firewalls (including their own ipchains
filters), passive FTP should be the default for FTP clients.  It always
has been for Netscape and there hasn't been much uproar about that being
bad.  Python's ftplib.py supports passive mode, but defaults to
non-passive mode.  ftplib.py is used by other Debian packages such as the
downloader in xanim-modules.  The result, when living behind many
firewalls, is that you can't download anything using ftplib.py or
urllib.py.

The patch to fix this is trivial:

--- /usr/lib/python1.5/ftplib.py        Sat Sep 16 14:31:35 2000
+++ /tmp/ftplib.py      Sat Sep 16 14:31:24 2000
@@ -112,7 +112,7 @@
                - port: port to connect to (integer, default previous
port)'''
                if host: self.host = host
                if port: self.port = port
-               self.passiveserver = 0
+               self.passiveserver = 1
                self.sock = socket.socket(socket.AF_INET,
socket.SOCK_STREAM)
                self.sock.connect(self.host, self.port)
                self.file = self.sock.makefile('rb')

-- 
Mike Fisk, RADIANT Team, Network Engineering Group, Los Alamos National
Lab
See http://home.lanl.gov/mfisk/ for contact information

For detailed info, follow this link:
http://sourceforge.net/bugs/?func=detailbug&bug_id=126851&group_id=5470