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.
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