Re: [xmpp] 3921bis: probe to full JID?

[Peter Saint-Andre <[e-mail]>]

On 2/1/10 12:56 PM, Ben Schumacher wrote:
> On 02/01/2010 12:29 PM, Justin Karneges wrote:
>> Basically, the server should return the most recently sent presence to
>> the JID
>> doing the probing, whether directed or undirected.  So, no, if you
>> send me
>> directed presence and then I probe you, I would not expect to receive
>> your "real" (undirected) presence.
>>
>>
> 
> Therein lies the rub. I do not want to have to shove ever presence sent
> into a DB, DHT, whatever to meet these requirements. Hence the point of
> the recommendation re: probe + unavailable.

Yes, that seems onerous.

Currently, the server needs to keep track of whether another entity is
on the list for receiving unavailable presence for a given resource. The
server will remove an entity from that list if the user sends directed
unavailable presence to the entity. So the server knows if it can send
<presence/> (no details like show or status or priority) to an entity,
and perhaps that is the best thing for it to return to the entity if it
probes the full JID.

Peter

-- 
Peter Saint-Andre
https://stpeter.im/