Re: [ftpext] New Version of FTP HASH, RANG, LOCK, and HOST

Ángel González <keisial@gmail.com> Sun, 27 January 2013 21:22 UTC

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Date: Sun, 27 Jan 2013 22:20:14 +0100
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To: Alun Jones <alun@texis.com>
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Subject: Re: [ftpext] New Version of FTP HASH, RANG, LOCK, and HOST
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On 27/01/13 19:32, Alun Jones wrote:
> This has an obvious problem - what if the size of the file changes during
> the transfer?
>
> There are many uses of FTP (webcam being the one that comes immediately to
> mind) where a "file" is retrieved, and is handled as if it is a
> potentially-infinite stream. We have a webcam at work that encodes video as
> an animated GIF that never ends. Doesn't display in Internet Explorer,
> because IE is paranoid, but it's a use-case that should be considered. The
> boundary method works for this use, where the size method doesn't.
>
> Alun.
> ~~~~
Probably due to the reference to MIME, I was thinking in multiple chunks
with
a size attached, not in one big chunk with the size. In the later case,
it would
be possible (assuming it doesn't shrink below what you have already
committed
to send).