[jdev] Offline messages XEPs interoperability (XEPs 0013 and XEP-0160)

Christian Schudt christian.schudt at gmx.de
Fri Feb 21 17:22:51 UTC 2014


Hi,

in addition to Matthias well-explained answer, I also might point out, that Peter Saint-Andre said about 1 month ago on the Standard mailing list, that XEP-0013 might get deprecated:
http://mail.jabber.org/pipermail/standards/2014-January/028497.html
(btw: any news about the future of XEP-0013?)

So it might currently not be the best idea to put development effort into it.

Christian


Am 21.02.2014 um 17:08 schrieb Sergey Dobrov:

> hey folks,
> 
> for now we have two different XEPs that allowing xmpp-servers to store messages that being sent while client was not available. XEP 0013 says that it's not very nice to flood all the messages on the client when it's becoming available, rather it advices to provide a way to discover such messages and query the necessary ones (and it's becoming something like inbox. the implementation is not the best to me, but it still nice), the XEP-0160 vice-versa says that we need to send all the messages when client has became available. And there is a good reason for that again: that way clients don't need any extra support of the offline storage.
> 
> Ok, we've seen that both XEPs cover some good usecase. But how to combine them? Can the xmpp server support both of them? I don't see a way for it to do that: if it supports 160 it needs to send all the messages immediately on client's presence but according to 13 it can't do that and I don't see any possibility for server to know which behaviour is the best for the client.
> 
> If server will support only 13, a big number of clients won't be able to obtain offline messages, but the 13 is still pretty nice to me (I just would want to add some more queries compatibility or even maybe combine it with MAM?). So, according to all these words above, what's the best way to me to implement such an inbox offline storage of messages?
> 
> Thanks.
> 
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