[Standards] Proposed XMPP Extension: Stanza Repeaters

Pedro Melo melo at simplicidade.org
Mon Mar 17 22:47:12 UTC 2008


On Mar 17, 2008, at 4:28 PM, XMPP Extensions Editor wrote:
> The XMPP Extensions Editor has received a proposal for a new XEP.
> Title: Stanza Repeaters
> Abstract: This specification defines an XMPP extension that enables  
> optimization of interdomain traffic that is intended for delivery  
> to multiple recipients, using the concept of a stanza repeater.
> URL: http://www.xmpp.org/extensions/inbox/repeaters.html
> The XMPP Council will decide at its next meeting whether to accept  
> this proposal as an official XEP.

I'm sure there is some security implication that I'm missing, but why  
do we need to make the hash of the repeater ID so tightly coupled  
with the recipients list?

I understand the need of keeping the ID unique but I fail to see what  
else is gained by this complexity.

On the other hand, the use of an ID that doesn't change each time we  
update the recipients list would be easier to work it in the presence  
of multiple senders.

Regarding the use of repeaters for <presence>, maybe we should just  
use the domain of the users as a virtual repeater, like PEP is a  
virtual pubsub at the users domain. This was suggested two years ago,  

The roster at the remote host could be used as the distribution list,  
no need for costly updates. Just reverse-query the roster if your DB  
system provides that (easy for SQL-based rosters, not as simple for  
LDAP-based ones).

Best regards,
Pedro Melo
Blog: http://www.simplicidade.org/notes/
XMPP ID: melo at simplicidade.org

More information about the Standards mailing list