On 26 Mar 2014 20:59, "Waqas Hussain" <<a href="mailto:waqas20@gmail.com">waqas20@gmail.com</a>> wrote: > > On Wed, Mar 26, 2014 at 2:05 PM, Dave Cridland <<a href="mailto:dave@cridland.net">dave@cridland.net</a>> wrote: > > > > On 26 Mar 2014 17:49, "Daniel Dormont" <<a href="mailto:dan@greywallsoftware.com">dan@greywallsoftware.com</a>> wrote: > >> I have a use case where I would like to send a presence to a MUC that > >> I may have already joined and, even if I have, I want it to send me > >> the message history no matter what. Is there a way to do that or would > >> it require a protocol extension of some sort? > > > > Yes and no. > > > > Technically speaking, simply sending presence to a MUC and joining (thus > > getting the history and participants) are not the same thing. Sending a > > proper MUC join (with the <x/> and the history control optionally inside it) > > to M-Link[*] will, therefore, give you the history you asked for, and all > > the occupant presence, even if you're already in the room. > > > > I find this *extremely* useful - which is why I did things that way. A > > use-case for this is where an S2S link is down when you reconnect your C2S, > > or the server crashes, or ... - all arguably edge cases, but they're solved > > very nicely this way. > > > > Other servers don't do this, though - I think they should. > > > > If you wanted to avoid the occupant presence, you'd want an extension which > > signalled this in much the same way that the history controls work. > > > > Dave. > > -- > > * - Note that I left Isode over a year ago and so may well be out of date. > > > > Prosody was (AFAIK) the first server to do this. We specifically > checked for <x xmlns=muc>, and assumed it was a MUC join, even if the > user was already in the room. It worked wonderfully, but we had to > comment that out because of Gtalk resending directed presence every > few minutes. > Yeah, I decided at the time correct behaviour over flakey links was more important than supporting buggy servers. I suppose it could have been made an option, in retrospect, but I did really appreciate the support on internet servers too. > Did Google ever fix that? Or do Gtalk users joining M-Link chatrooms > get history sent over and over? We never removed the code from Prosody > in the hope that Google would fix their behavior and we would reenable > the feature. > I've no idea. I know it was quite irritating for a while use a Google account with an M-Link chatroom. > -- > Waqas Hussain > _______________________________________________ > JDev mailing list > Info: <a href="http://mail.jabber.org/mailman/listinfo/jdev">http://mail.jabber.org/mailman/listinfo/jdev</a> > Unsubscribe: <a href="mailto:JDev-unsubscribe@jabber.org">JDev-unsubscribe@jabber.org</a> > _______________________________________________