Sudhir, Thanks. However, this is not the scenario I am talking about. In this case, A publishes its event package to Presence server P. If B wants to subscribes to A's event package, it subscribes to P (which acts on behalf of A).
Now, the only way A knows if B is subscribing to its event package is to subscribe using watcher info. The RFC provides a way in which P can NOTIFY A that B is subscribing to the package. However, it does not discuss a mechanism where A can "instruct" P to deny the subscription (in other words, P does not have enough authentication information to allow this particular user B). regds arjun On 1/17/06, SiM <[EMAIL PROTECTED]> wrote: > > > > *Arjun Roychowdhury <[EMAIL PROTECTED]>* wrote: > > Hi, > RFC 3857 "A Watcher Information Event Template-Package...." defines a > mechanism by which a user can subscribe to subscription changes to a > particular event package. > > I am working on a situation where user 'A' is the 'moderator' of a > particular event package X that is hosted in a central presence server P. > A > subscribes to P with > event:X.winfo. > > Now when B subscribes to P for event X, P notifies A of this occurence. > However, 3857 provides no standard mechanism in which A can instruct/deny > this request (3857 leaves > this as 'out of scope'). > > Is there any draft / mechanism that allows an explicity 'allow / deny' > mechanim via SIP that A can use to instruct P to deny the subscription to > B > ? > > regds > arjun > > Hi Arjun, > I'am not sure whether you are looking for the below > Internet draft on Presence Authorization Rules, where a user can, express > his/her intent (Rule) to share presence information, to a particular > Subscriber . It uses XCAP , to manipulate the information in the Presence > Authorization Rules Document. > > > http://www.ietf.org/internet-drafts/draft-ietf-simple-presence-rules-04.txt > > However, i do not know the status of the latest version of this ID. > > Cheers. > Simith > > > > > > Send instant messages to your online friends http://in.messenger.yahoo.com > -- Arjun Roychowdhury _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
