PayPal: Event-independent webhooks

src/pretix/plugins/paypal/payment.py

@@ -12,7 +12,9 @@ from pretix.base.models import Order, Quota, RequiredAction
 from pretix.base.payment import BasePaymentProvider, PaymentException
 from pretix.base.services.mail import SendMailException
 from pretix.base.services.orders import mark_order_paid, mark_order_refunded
+from pretix.helpers.urls import build_absolute_uri as build_global_uri
 from pretix.multidomain.urlreverse import build_absolute_uri
+from pretix.plugins.paypal.models import ReferencedPayPalObject
 
 logger = logging.getLogger('pretix.plugins.paypal')
 
@@ -55,7 +57,7 @@ class Paypal(BasePaymentProvider):
         return "<div class='alert alert-info'>%s<br /><code>%s</code></div>" % (
             _('Please configure a PayPal Webhook to the following endpoint in order to automatically cancel orders '
               'when payments are refunded externally.'),
-            build_absolute_uri(self.event, 'plugins:paypal:webhook')
+            build_global_uri('plugins:paypal:webhook')
         )
 
     def init_api(self):
@@ -154,6 +156,7 @@ class Paypal(BasePaymentProvider):
 
         self.init_api()
         payment = paypalrestsdk.Payment.find(request.session.get('payment_paypal_id'))
+        ReferencedPayPalObject.objects.get_or_create(order=order, reference=payment.id)
         if str(payment.transactions[0].amount.total) != str(order.total) or payment.transactions[0].amount.currency != \
                 self.event.currency:
             logger.error('Value mismatch: Order %s vs payment %s' % (order.id, str(payment)))