Hear me out: what if, instead of maintaining a roster, we just send directed presence to every open chat and tell everyone #XMPP doesn't have a server-side contact list anymore? Obviously, the server could still infer the exact same information, but that's true for Signal as well, and nobody seems bothered by this either.
AFAIK, Signal does not have presences or any "last seen"-type information. But I guess "contact list" can be inferred server-side with messages passing through anyway. Maybe there is a mitigation in Signal servers about that too? It's still centralized and Signal servers are a massive single point of failure operated by an org in an authoritarian country, so I don't care enough to actually investigate any of it anyway.
@Daniel Gultsch would this allow in some way for sharing contact lists and bookmarks between different clients, as long as they stay connected for a while at the same time?
@valhalla bookmarks are an independent thing anyway.
I guess clients could infer a lot from what recent messages are in the archive and from things like Message Displayed synchronization. But no, it wouldn't have a shared contact list.
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Wolf480pl
in reply to Daniel Gultsch • • •Nicoco
in reply to Daniel Gultsch • • •Elena ``of Valhalla''
in reply to Daniel Gultsch • •Daniel Gultsch
in reply to Elena ``of Valhalla'' • • •@valhalla bookmarks are an independent thing anyway.
I guess clients could infer a lot from what recent messages are in the archive and from things like Message Displayed synchronization. But no, it wouldn't have a shared contact list.
Elena ``of Valhalla'' likes this.
Zash
in reply to Daniel Gultsch • • •