Re: [xmpp] 3921bis: delivery of messages addressed to bare JIDs

[Jonathan Schleifer <js-xmppwg at webkeks.org>]

Am 29.01.2010 um 00:18 schrieb Peter Saint-Andre:

> Currently some XMPP services broadcast messages addressed to a bare  
> JID
> instead of delivering those messages only to the highest-priority
> resource(s). The highest-priority rule is a legacy of the original
> jabberd 1.x codebase and I don't see a strong reason to forbid other
> message delivery styles. Therefore I propose a change to Section  
> 8.3.1.1
> of 3921bis.
>
> The relevant text in -03 reads:
>
>  For a message stanza of type "chat" or "normal", the server SHOULD
>  deliver the stanza to the highest-priority available resource.
>
> (Followed by text about delivery ties.)
>
> I propose the following text for -04:
>
>  For a message stanza of type "chat" or "normal", the server MUST
>  either (a) deliver the stanza to all available resources or (b)
>  deliver the stanza to the highest-priority available resource.
>
> (Again followed by text about delivery ties in case (b).)
>
> Thoughts?

Hm, this sounds to me like killing resources all together. Why not let  
the user decide? For example, if the user gives all resources the same  
priority, all resources get the message. If the user decides to use  
different priorities, only the one with the higehst gets it (if 2 are  
sharing the highest prio, both should get it).

I think priorities and resources are one of the killer features of  
XMPP and should not be removed or crippled.

--
Jonathan