[Standards] Client-Generated Presence Probes

Remko Tronçon remko at el-tramo.be
Tue Dec 16 22:32:52 UTC 2008

> Do you think such an addition should be made to the privacy list spec?

Yes, if it's not there already.

Btw, the simple communications blocking XEP already has a clause that
requires the server to send presence of unblocked contacts.

> Although perhaps a trivial implementation of *always* doing a probe when the
> privacy list changes isn't a horrible idea.

Right. And if you let the client do it, then you rule out the server's
possibility of doing optimizations (since it doesn't know why you are
doing a probe). Moreover, the client can't do any optimizations on
itself, because it doesn't know the privacy list logic (and it
shouldn't try to either, because the server might have its own logic
for doing that).


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