Setting up proxy with FTP with Python

user_8408059 0
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We are trying to develop a Python module that will hit an FTP server and download files to my local machine. When we try to run the FTP portion of the module it is timing out.

We have a proxy server (let's call it "officeproxy.com:8080") to handle this and when using an FTP client like FileZilla or Windows Explorer to access FTP sites we are successful.

Let's call the ftp site "ftp.cal.com". User name is "papa". Password is "tango123".

So far we have:

Proxy = officeproxy.com:8080
FTP = ftp.cal.com
User = papa
PW = tango123

The above are not real entities so if you want to swap them out for real ones, be my guest.

I need a module to first load the proxy service then run the FTP portion.

I am running Python 2.7.

I have searched around and have this code so far. The OP said it is just a short module to test connection to FTP and read one file.

(Note: I have intentionally put # in a lot of places to show when I don't know to fill in, or other reasons):

import urllib2
# I have filled in the proxy info
proxy_host = 'officeproxy.com:8080'

# I don't think this needs any modification, right?  
proxy_handler = urllib2.ProxyHandler({'ftp': proxy_host})

# ditto here 
proxy_auth_handler = urllib2.ProxyBasicAuthHandler() 

# now here is where I am unsure what to put; 
# also, I really need FTP user and FTP password, and NOT Proxy... 
# so what do I need to change here?
proxy_auth_handler.add_password(None, proxy_host, proxy_user, proxy_passwd) 
opener_thru_proxy = urllib2.build_opener(proxy_handler, proxy_auth_handler)

# I filled in this part
conn = opener_thru_proxy.open('ftp://ftp.cal.com/hello.txt') 

# I don't believe I need to change this, right?
print conn.read()
python-2.7 ftp proxy python
3 Answers

Adding this as it's one of the top results and struggled to find a solution.

If your proxy is a HTTP proxy and you need to authenticate it then this is how:

import socks
import socket

socks.set_default_proxy(socks.HTTP, 
        proxy_host, 
        proxy_port, 
        username=proxy_username, 
        password=proxy_password
)
socket.socket = socks.socksocket
ftp = FTP(ftp_host)
ftp.set_debuglevel(1) 
ftp.login(
        user=ftp_user,
        passwd=ftp_password
)

Otherwise for a FTP Proxy Martin's answer works. You can see the behaviour in FileZilla for FTP proxies too and that'll help to code for your requirements

Hope this helps someone!

user_115770080

The question is a little bit out-dated, but I didn't find any recent solution myself so I figured I would provide the solution I found. In my case the office proxy requires credentials so those are included in the solution. I would presume that you can just remove the proxy_user and proxy_passwd if your proxy does not require credentials. The code I got working in Python 3.6 is:

from ftplib import FTP

ftp = FTP("officeproxy.com")
ftp.set_debuglevel(1)
ftp.login(user='ftp_user@ftp_host proxy_user', passwd='ftp_passwd', acct='proxy_passwd')

# Do whatever you need on the FTP server here

ftp.quit()

I hope this helps.

user_94244090
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