[jdev] Best ways for a JID to advertise what services it uses?

[Bruce Campbell]

On Thu, 7 Oct 2010, Sergey Dobrov wrote:

> On 10/07/2010 03:13 AM, Matthew Wild wrote:
>>
>> It occured to me that this issue actually relates to a recurring
>> problem we have in XMPP. When an account is removed from a server we
>> remove subscriptions to their contacts also. Unfortunately there is no
>> standard way to know what services an account may have also been
>> associated with, and so no way to notify them of the accounts
>> deletion.
>
> But what about transports? It's not enough to remove subscription on
> them. We need to unregister also. Otherwise a new JID's owner will be
> allowed to access old owner's legacy accounts...

Account re-use is more of a political problem (ie, do the server 
administrators prevent re-use of a given account name for all time, or 
allow it to be used after a certain period ) than a protocol problem.

One way to address it would be to 'suggest' that administrators don't 
re-use a given account for a given period, and for everything that has 
subscriptions to peridocially re-verify all subscribers in some manner. 
Ugh.

-- 
   Bruce.