[JDEV] Subscriptions to non-existent addresses

[Emma Willis]

I am looking to do both - but mainly just test with users on my own
server... I will have a check to see if I gwet the presence packet (I
know the roster does change as you suggested).

Emma

-----Original Message-----
From: jdev-admin at jabber.org [mailto:jdev-admin at jabber.org] On Behalf Of
Jason Anderson
Sent: 05 August 2002 16:36
To: jdev at jabber.org
Subject: Re: [JDEV] Subscriptions to non-existent addresses


Emma,

I don't know how to test if a JID exists, but maybe I can help on the 
mechanics of subscription.

Are you talking specifically about subscribing to a non-existent user on

a *different server* than yours, or do you also mean non-existent users 
on *your server*?

When you subscribe to a user at your local server who doesn't exist, the

server will
   -send you a roster change for that item with ask=subscribe
   -send you a presence packet with type=unavailable and status "Not
Found"

You don't receive any errors in this case, because it's all handled by 
the subscription mechanism through roster and presence packets.

jason

emma.willis at ntlworld.com wrote:
> Please can someone tell me if there is any way of testing whether or 
> not an address actually exists before you add them to your roster, 
> using Jabberbeans.... I let my users add contacts but if the reciever 
> never gets their subscription request, the roster item (with an 
> ask=subscribe attribute) remains on their roster indefinitely.  I know

> an error is caused when the packet is bounced back to the server but I

> don't know if or where this is passed back to the jabberbeans 
> server-side stuff (highly technical term there).
> 
> If anyone knows - please can you tell me.
> 
> Emma
> 
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> jdev mailing list
> jdev at jabber.org
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> 
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> 


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