[Twisted-Python] FTP without the protocol

[Lloyd Carothers]

Hi, all,
  I have many users that need to send data to me for archival. Large 
data sets in many files (10,000's of files 100s of GB per file set.) Up 
to this point the users use a ftp client wrapper that uploads data to my 
FTP server. This has become too problematic with firewalls etc. and I 
now have the time to write a new client/server of my own; A ftp server 
for uploads only.

  I'm looking into using twisted, but am very open to other 
suggestions/solutions.

  For such a use case I'm surprised not to find an example. I think I 
just need a push in the right direction. Is producers/consumers the 
right approach?

Thanks in advance,
  Lloyd