On 03/14/2012 09:28 PM, Joe Hildebrand wrote:
> 
> It could be used by non-PEP pubsub, by, for example, sending an ago stanza
> in your subscribe, or by translating it into a subscription option.

Yeah, I just mean that it'd be cool to describe such way because it will
probably use iq and not presence.

> 
> XEP-292.  Both my vCard that you have subscribed to as well as my list of
> contacts.  I don't want the client to have to receive all of these vCards
> every time they log in, including the base64 avatars.
>

It seems to me that the XEP-292 needs from/to subscription states to be
processed correctly too. Because it will be strange for user that he can
maintain one-way subscription but he can only get vcard updates for
"both" subscribers... Maybe I am wrong, but I am persistently see an
inconsistency here. The XMPP Core protocols provide us the one way
subscriptions but it seems that them will be completely unuseful in the
near future because modern protocols forget about them. I see the
clients complication issues here too.

But it's hard for me to examine the example of the XEP-292 since I don't
fully understand the necessity of instant vcard updates notifications?
Is this for the avatar updates? If so, from/to subscriptions need to be
in game.

At least, if I imaging me a user which doesn't know anything about XMPP
under-the-hood, I think that it will be pretty non trivial for me why I
have instant vcard updates for some accounts and don't have for another
ones.

> 
> Can you say that another way, please?  I didn't quite understand your point.

I just said that the current PEP is only useful for light protocols
which are not carry important payloads, which can be loss and nobody
cares. More complex protocols need PEP to support to/from subscription
states or they will not be able to be the high-grade and then the
situation will lead to PEP reinvention if many protocols will depend on
that PEP's issue.

-- 
With best regards,
Sergey Dobrov,
XMPP Developer and JRuDevels.org founder.

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