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Re: [ic] security
Quoting cfm@maine.com (cfm@maine.com):
> On Thu, Jan 25, 2001 at 09:15:39PM -0700, John Beima wrote:
> > It appears if MiniVend is not able to create an account in the UserDB, my guess
> > would be there are two orders going through at the same time trying to
> > auto-create the same account name, since it is an incrementing number, the
> > second one fails, and instead of an error generating, recieves the user info
> > from the last logged in client, or the other user creation that it collided
> > with.
>
> We've had the same issue with order numbers recently. Multiple users
> getting the same order number because the order counter did not update.
> It was pathological, it had to be our fault, but it should have been
> caught (mv4.03).
>
> Failure to successfully update a counter should fail the
> transaction, even kill the catalog.
>
> We're going to <ahem>solve</ahem> it by using unique enterprise
> keys/counter for order numbers. And we are setting up our catalogs
> to die on non-unique order numbers. No doubt it will work just
> fine when everything is working. Minivend needs a way to
> sequence order numbers independantly for multiple instances of
> the same catalog on independant machines, some of which may go
> offline but still take orders. (eg POS/callcenter on localnet)
> The vanilla OrderCounter++ is not enough.
>
> It's getting to the point where the machine issuing unique numbers is
> more mission critical than our kerberos server. yeesh.
In recent Interchange (and maybe Minivend 4) all you have to do is
[perl]
$Session->{mv_order_number} = your_unique_number();
[/perl]
It will bypass OrderCounter at that point, and use yours. Then it
is on your head. 8-)
--
Akopia, Inc., 131 Willow Lane, Floor 2, Oxford, OH 45056
phone +1.513.523.7621 fax 7501 <heins@akopia.com>
Nature, to be commanded, must be obeyed. -- Francis Bacon
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