[Twisted-Python] ftp server
John Pote
johnpote at jptechnical.co.uk
Wed Mar 22 02:46:18 MST 2006
Thanks for the replies. I can go ahead with Twisted with confidence. I
guess I'll be back to this list for some help on the 'boiler plate'
IConsumer stuff (or is this in the docs somewhere?).
Best wishes,
John Pote
Christopher Armstrong wrote:
> On 3/21/06, *John Pote* <johnpote at jptechnical.co.uk
> <mailto:johnpote at jptechnical.co.uk>> wrote:
>
> API stability: FTPClient is stable, FTP and FTPFactory (server) is
> unstable.
>
>
>
> As it is the server that I am interested in the 'unstable' comment is
> somewhat worrying. Any comments on this instability would be
> appreciated. i.e. is it particular situations that cause problems
> or are
> there general problems with the server that may occur doing simple
> things.
>
>
> First, note that it refers to *API* stability, not performance
> stability. The only thing "unstable" means in this context is that we
> reserve the right to change the interface of the FTP server in a way
> that could possibly break end-user code, although that's only if
> backwards compatibility is impossible. In practice, code written
> against an "unstable" Twisted interface doesn't often break outright
> upon upgrade; instead deprecated APIs will give you warnings when you
> continue to use them, and hopefully sufficiently describe the correct
> way to use the functionality.
>
> Also I do not want the uploaded file contents written directly to
> disk.
> I want to pass it to another python app/object to decode it,
> format it
> and finally append it to a file on disk. Could the Twisted ftp server
> allow such 'filtering'? The reason for doing this via ftp is the data
> source client is a GPRS modem that has ftp built in (but not
> http). The
> alternative is to do my own thing directly via TCP. Comments invited.
>
>
> The FTP server framework definitely supports such things, although you
> have to go through a bit of boilerplate. You eventually end up
> implementing your own IConsumer to handle the data, which means you'll
> get chunks of data handed to you as it comes in and you can do what
> you want with it.
>
> Hope this helps. If you need any more detailed info feel free to post
> again.
>
>
> --
> Christopher Armstrong
> International Man of Twistery
> http://radix.twistedmatrix.com/
> http://twistedmatrix.com/
> http://canonical.com/
>
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