[Standards] Generalisation of XEP-xxxx: MUC Avatars

Timothée Jaussoin edhelas at movim.eu
Fri Nov 2 16:26:16 UTC 2018


Le mardi 25 septembre 2018 à 19:49 +0200, Timothée Jaussoin a écrit :
> I just reviewed the XEP-xxxx: MUC Avatars and I would like to discuss some ideas about it before proposing adjustments.
> 
> The core idea of this XEP is to expose the Vcard hash in the bare MUC JID disco#info and notify it using a message 104.
> This is a really specific use case that solves a really specific problem.
> 
> However the method that is used in this XEP to store this hash could be generalized to other cases.
> 
> I see two things there:
> - How are we storing the avatar hash (here in a specific field in disco#info)
> - How this hash is advertised to the subscribers
> 
> disco#info is a pretty generic feature in XMPP that is actually already applied to most of the resources available on the network
> including:
> - MUC JIDs
> - Users JIDs
> - Pubsub nodes
> 
> What I'd like to propose is to generalize this XEP to allow this method to be used across all those resources, this will allow to
> have
> a unified method (it maybe sounds like https://xkcd.com/927/) to handle the retrieval of Avatars and also finally allow Pubsub nodes
> to
> have an avatar (and Vcard information as well if possible, see my last point).
> 
> This brings me to the second part of my proposal. How to advertise the change.
> - For MUC, I'd suggest to stick with the status code='104' even if I'd prefer to use XEP-0153 presences for that
> - For Users JIDs, simply stick with XEP-0153
> - For Pubsub nodes it could also reuse XEP-0153 in a Pubsub notification as a payload
> 
> Last proposal would not be to mention only Avatar but simply Vcard (vcard-temp in this case) then we could put more metadata in this
> payload (add an address to a Pubsub node for example) but I'd like to have more feedback on that one.
> 
> In any cases I'll try to formalize those proposals in a PR to this XEP :)
> 
> Regards,
> 
> Timothée Jaussoin
> 
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Sorry for the delay but I just published a PR that add the proposed changes to the XEP.
Feel free to comment them https://github.com/xsf/xeps/pull/713.

Regards,

Timothée Jaussoin



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