"presenceability" (was Re: [Standards-JIG] PubSub leased subscriptions)

Peter Saint-Andre stpeter at jabber.org
Wed Feb 8 16:30:41 UTC 2006


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Nolan Eakins wrote:
> Peter Saint-Andre wrote:
>> Aha, I see, that has possibilities. :-) I think I'd prefer it if the
>> service sends a message rather than including all the subscribed nodes
>> in a presence packet. Also it probably makes sense for the service to
>> send the subscriptions (affiliations) only if the client requests them
>> (what if I'm on a mobile client that doesn't want to receive all these
>> pubsub affiliations). So perhaps something like this (where we assume
>> "publisher at domain.tld" is a virtual pubsub service a la PEP):
> 
> Having it included in a presence would be a problem, especially with
> PEP. That could easily escalate into a huge mess.
> 
>> <presence from='subscriber at domain.tld/foo'
>>           to='publisher at domain.tld'>
>>   <affiliations xmlns='http://jabber.org/protocol/pubsub'/>
>> </presence>
> 
> That would prevent 100 people from sending me subscriptions. My client
> could selectively choose who to request affiliations from. Though the
> semantics are very IQ-ish.

Well, sure. We've already got a way to selectively request affiliations
via IQ. I thought you wanted a way to automagically receive your
affiliations.

> I should check, but I'll
> ask anyway: does the pub/sub service tell you when your affiliation
> changes?

I added this as a MAY in the most recent draft.

Peter

- --
Peter Saint-Andre
Jabber Software Foundation
http://www.jabber.org/people/stpeter.shtml

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