jdev - 2020-08-02

I've just had an amazingly cursed idea

so, when someone's client leaves a MUC they go offline, right, and leave the MUC

could you continue to send that client messages for the MUC and would they be stored in offline storage?

eta: when a client goes offline, their server will normally respond with errors to all MUC messages, leading to a kick of the client

awww

eta: the most interesting idea so far was to register XEP-0357: Push Notifications on each MUC, so that the MUC would send a push when a given client leaves, causing the client to be woken up and to rejoin

AFAIK it wasn't implemented yet

Ge0rG: I'm mainly trying to avoid having to store messages for a transport

or at least, trying to offload storage to user servers

eta: that's a nice idea, but won't work because users' servers drop groupchat from MAM

Ge0rG: and offline storage?

eta: never stored groupchat, and is also rather deprecated

ah

Ge0rG: what's wrong with offline storage?

eta: it will be depleted by the first client coming online, your second client won't see anything from it

oh is it not per-resource?

I experimented with having everything sent from the users bare JID, instead of the full JID

okay that's a bit garbage

Zash: yeah, the minimix thing

Yeah, that

but that doesn't solve the MAM issue

Maybe we've talked about it

we have :)

eta: Not directly, but it can solve the MAM issue, with some trickery.

Zash: i.e. get the MAM service to store groupchat messages too?

You'd have to have the minimix and MAM conspire together

what we need is more trickery.

(and intercept MAM queries for the room JID)

Hacks upon hacks upon hacks

that's how protocols work, of course

"layers are only added, never removed"

Zash: surely this would solve all the problems though?

I guess it'd impose a storage burden on the servers

ALL THE PROBLEMS

what about just going forward with XMPP 2.0?

Ge0rG: XMPP *what*

eta: https://wiki.xmpp.org/web/XMPP_2.0

Zash: yep, all the problems all fixed, no more work needed

Ge0rG: oh, fancy

its assumed that a well maintained server, has pubsub persist items set to True by default on new nodes, or?

im asking if i need to have code that reconfigures the node

or if this is something i can tell users to bug the admin with