Drupal/Ubercart payment notification path?

What's the path on which Drupal / Ubercart usually receives the successful payment notifications from 3rd party websites ?

I need to provide a path for the notifications to the payment server. Since this is not specified in the documentation, I was wondering if there is a usual one in Ubercart.

(I'm using AlertPay if it can 开发者_如何学编程help)

Hope it is clear.

thanks

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It looks like the completion URL is http://www.example.com/alertpay/complete and the cancel URL is http://www.example.com/alpertpay/cancel. They are specified in the hook_menu implementation in the .module file. In this case, look for the uc_alertpay_menu function.