[sr-dev] Your opinion about presence subscription blocking actions

Marcus Hunger hunger at sipgate.de
Wed Feb 24 09:38:40 CET 2010


Hi,

there could be other reasons to block subscriptions. Maybe the operator of
the service decides that Alice and Bob are on different realms, and are thus
not allowed to subscribe each others status. Explicitly blocking these
requests, eventually with a reason would be the right way to do this.

Marcus

On Fri, Feb 19, 2010 at 1:40 PM, Iñaki Baz Castillo <ibc at aliax.net> wrote:

> El Viernes, 19 de Febrero de 2010, Klaus Darilion escribió:
> > Am 19.02.2010 12:10, schrieb Iñaki Baz Castillo:
> > > But there is a problem with point 1 as it's not valid for the case in
> > > which you block a user who was allowed. This is, subscription status
> > > cannot transition from "active" to "pending", so the only way is using
> > > case 3 in which the subscription status remains "active" but the
> presence
> > > server sends a spoofed NOTIFY with "offline" status.
> >
> > Why not terminate the subscription if Bob removes Alice from the allowed
> > buddies?
> >
> > Then Alice will SUBSCRIBE again and receives status=pending.
>
> But then Alice will know (or can know) that you have rejected her!
>
> Imagine you want to "captivate" Carol but don't want Alice to know that you
> are connected. You don't want to reject Alice, but just set "invisible" for
> her (you don't want to reject Alice because if you don't captivate Carol
> you
> would like to try with Alice later). :)
>
>
> --
> Iñaki Baz Castillo <ibc at aliax.net>
>
> _______________________________________________
> sr-dev mailing list
> sr-dev at lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
>



-- 
Dipl.-Inf. (FH)
Marcus Hunger - hunger at sipgate.de
Telefon: +49 (0)211-63 55 55-61
Telefax: +49 (0)211-63 55 55-22

sipgate GmbH - Gladbacher Str. 74 - 40219 Düsseldorf
HRB Düsseldorf 39841 - Geschäftsführer: Thilo Salmon, Tim Mois
Steuernummer: 106 / 5724 / 7147, Umsatzsteuer-ID: DE219349391

www.sipgate.de - www.sipgate.at - www.sipgate.co.uk
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.sip-router.org/pipermail/sr-dev/attachments/20100224/ce994d67/attachment-0001.htm>


More information about the sr-dev mailing list