[ic] Getting Worldpay Callback to trigger IC?

[interchange at tvcables.co.uk]

Quoting Jonathan Clark <jonc at webmaint.com>:

>
> > I decided it was time to sort out Worldpay with callback, I have been all
> > through the archives (many times) yet still cannot complete it. I have the
> > notes from Lyn St George but there is too much missing for me to
> > make it work.
> >
> > I have a basic callback working, where worldpay will call the
> > callback page and
> > display whether a transaction was good or cancelled with basic
> > password check
> > eg:-
> >
> > callback.html
> >
> > [if cgi transStatus eq Y]
> > [if cgi callbackPW eq password]
> > Payment sucessful
> > [/if]
> > [/if]
> >
> > That works fine, now I want to trigger IC to complete the order,
> > in otherwords
> > replace the above "Payment Sucessful" with the trigger code.
> >
> > I tried this code from the archives:-
> >
> > [seti url][area href=process form="
> > mv_todo=submit
> > mv_order_route=log main copy_user
> > mv_order_report=ord/report
> > mv_order_receipt=ord/receipt "]
> > [/seti]
> > [bounce href="[scratch url]"]
> >
> > When placed within the IF statement this code triggers the order
> > just fine if I
> > call the page myself from my server with the approprite cgi
> > variables in the
> > url, however when running it with a test transaction via the
> > Worldpay server it
> > fails with a 302 re-direction error, the order is not trigerred
> > and I am left
> > stranded on Worldpay, Worldpay flag it as a callback failure.
> >
> > So how can I get the callback page to trigger the order based on
> > testing the
> > transStatus and callbackPW cgi variables???
>
> I don't understand how the above code can work.
>
> You are having a remote client (WorldPay) request a page from your server
> which will inevitably create a new session. This new session will not
> contain any cart items, and is completely unconnected with your customer's
> session as far as I can see. Added to this, you are assuming WorldPay's
> systems would deal with a browser redirect. I don't know if they would, but
> I would assume not.
>
> Where I have dealt with this previously, I have altered the checkout process
> to save a pending order to orderline and transactions prior to visiting the
> PSP, and then used the callback to verify details stored in the database and
> then update the order as appropriate and send out emails.
>
> Your choice is to code something like this, or wait for Mike Heins to build
> the PayPal payment module for IC and then base yours on that. Personally, I
> would wait for Mike.
>
> Coupled to this, with WorldPay, you need to hand inspect each payment on
> WorldPay anyway as their fraud prevention is so poor, so you are not gaining
> a huge amount anyway.
>
> Jonathan

Jonathan,

Thanks for your comments, can you share any tips/code on how to implement your
suggestion please?

Regarding your comment on Worldpay's fraud prevention being poor, I am not sure
quite what you mean, could you elaborate please?

Thanks,
Andy.


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