[Standards] UPDATED: XEP-0234 (Jingle File Transfer)

Peter Saint-Andre stpeter at stpeter.im
Thu May 29 16:36:54 UTC 2008

On 05/29/2008 9:39 AM, Tim Julien wrote:
> Peter Saint-Andre wrote:
>> On 05/21/2008 1:18 PM, Tim Julien wrote:
>>> So, I'm confused about some of the transport negotiation stuff.
>> It was sketched out rather quickly and probably needs more work.
>>> In first scenario (section 3.1) the negotiation occurs after
>>> session-accept - which is counter to every Jingle spec that has come out
>>> so far: typically both <description> and <transport> are negotiated as a
>>> pre-requisite to session-accept and going into ACTIVE. (I'll bet it was
>>> done this way because content-replace isn't currently allowed in
>>> PENDING, even though the other specs are using it there).
>> The other specs have been corrected.
>> In file transfer especially you might want fallback because SOCKS5
>> Bytestreams does not provide reliable NAT traversal, unlike ICE. So you
>> might try XEP-0065 first but then it fails, so you fall back to In-Band
>> Bytestreams because you know that will always get through (well, almost
>> always: you might run into rate limiting from your server).
> The fallback makes alot of sense - I'm glad its being added.
> But do you envision that happening pre or post session-accept (i.e.,
> during PENDING or ACTIVE).  I guess I'll wait for your updated flows. :)

I'm working on that right now and will post an updated version shortly.
However, the flows will be consistent with what's in XEP-0166 and the
various other Jingle specs. Whatever that ends up meaning... :)


Peter Saint-Andre

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