Simple code for FTP Server in python

Question

I want to built a simple FTP server in python which will serve the client in just downloading a text file. Can any one kindly help me by suggesting the best study material to refer and help me finding some code snippets.

Racket

Must it be FTP? HTTP would be much simpler. – Circumbendibus

Answer 1

Check out the FTP examples with twisted

• http://twistedmatrix.com/documents/current/core/examples/#auto8

Also a simple implementation: ftpdrop.py

• http://www.mythi.cx/python/

Gelsenkirchen

Thanks again...The whole day i was doing google for FTP sample code,but i wasn't successful.... U made my work simpler...Thanks a lot... – Racket

Answer 2

I can recommend pyftpdlib hosted at Github

Example:

>>> from pyftpdlib.authorizers import DummyAuthorizer
>>> from pyftpdlib.handlers import FTPHandler
>>> from pyftpdlib.servers import FTPServer
>>>
>>> authorizer = DummyAuthorizer()
>>> authorizer.add_user("user", "12345", "/home/giampaolo", perm="elradfmw")
>>> authorizer.add_anonymous("/home/nobody")
>>>
>>> handler = FTPHandler
>>> handler.authorizer = authorizer
>>>
>>> server = FTPServer(("127.0.0.1", 21), handler)
>>> server.serve_forever()
[I 13-02-19 10:55:42] >>> starting FTP server on 127.0.0.1:21 <<<
[I 13-02-19 10:55:42] poller: <class 'pyftpdlib.ioloop.Epoll'>
[I 13-02-19 10:55:42] masquerade (NAT) address: None
[I 13-02-19 10:55:42] passive ports: None
[I 13-02-19 10:55:42] use sendfile(2): True
[I 13-02-19 10:55:45] 127.0.0.1:34178-[] FTP session opened (connect)
[I 13-02-19 10:55:48] 127.0.0.1:34178-[user] USER 'user' logged in.
[I 13-02-19 10:56:27] 127.0.0.1:34179-[user] RETR /home/giampaolo/.vimrc completed=1 bytes=1700 seconds=0.001
[I 13-02-19 10:56:39] 127.0.0.1:34179-[user] FTP session closed (disconnect).

Logomachy

Answer 3

This is probably the best you can find to understand the FTP protocol. Implementation should be pretty simple once you've understood the mechanism.

Enchain

I have gone through the details of ftp protocol, but the implementation using it is bit different. I want a simple sample code to get some idea of it. – Racket

@Nilesh Nar: Provided an example with twisted. – Gelsenkirchen