[ftputil] FTP Through HTTP Proxy

[Alexander Michael]

I am hoping that someone on this list can point me in the right
direction. I've been using ftputil to download files from an FTP
server via an FTP proxy through a custom class derived from ftplib.FTP
(to go through the proxy). Unfortunately, my company is shutting down
thr FTP proxy and I am being forced to pull files through the HTTP
proxy (i.e. if I type ftp://username:password@ftpserver into my
browser, I can see a list of files on the server). It would be easiest
to transition if I could create another ftplib.FTP subclass that goes
through the HTTP proxy, but I do not know how to do this or even if it
can be done. Has anyone attempted to build something like this before?