Fix cybersource receipt page override

ecommerce/extensions/checkout/mixins.py

@@ -18,6 +18,7 @@ from ecommerce.extensions.order.constants import PaymentEventTypeName
 
 CommunicationEventType = get_model('customer', 'CommunicationEventType')
 logger = logging.getLogger(__name__)
+Order = get_model('order', 'Order')
 post_checkout = get_class('checkout.signals', 'post_checkout')
 PaymentEvent = get_model('order', 'PaymentEvent')
 PaymentEventType = get_model('order', 'PaymentEventType')
@@ -100,22 +101,25 @@ class EdxOrderPlacementMixin(OrderPlacementMixin):
         and basket submission in a transaction. Should be used only in
         the context of an exception handler.
         """
-        with transaction.atomic():
-            order = self.place_order(
-                order_number=order_number,
-                user=user,
-                basket=basket,
-                shipping_address=shipping_address,
-                shipping_method=shipping_method,
-                shipping_charge=shipping_charge,
-                order_total=order_total,
-                billing_address=billing_address,
-                **kwargs
-            )
-
-            basket.submit()
-
-        return self.handle_successful_order(order, request)
+        try:
+            return Order.objects.get(number=order_number)
+        except Order.DoesNotExist:
+            with transaction.atomic():
+                order = self.place_order(
+                    order_number=order_number,
+                    user=user,
+                    basket=basket,
+                    shipping_address=shipping_address,
+                    shipping_method=shipping_method,
+                    shipping_charge=shipping_charge,
+                    order_total=order_total,
+                    billing_address=billing_address,
+                    **kwargs
+                )
+
+                basket.submit()
+
+            return self.handle_successful_order(order, request)
 
     def handle_successful_order(self, order, request=None):  # pylint: disable=arguments-differ
         """Send a signal so that receivers can perform relevant tasks (e.g., fulfill the order)."""

ecommerce/extensions/checkout/utils.py

@@ -33,19 +33,23 @@ def get_credit_provider_details(access_token, credit_provider_id, site_configura
         return None
 
 
-def get_receipt_page_url(site_configuration, order_number=None):
+def get_receipt_page_url(site_configuration, order_number=None, override_url=None):
     """ Returns the receipt page URL.
 
     Args:
         order_number (str): Order number
         site_configuration (SiteConfiguration): Site Configuration containing the flag for enabling Otto receipt page.
+        override_url (str): New receipt page to override the default one.
 
     Returns:
         str: Receipt page URL.
     """
     if site_configuration.enable_otto_receipt_page:
-        base_url = site_configuration.build_ecommerce_url(reverse('checkout:receipt'))
-        params = urllib.urlencode({'order_number': order_number}) if order_number else ''
+        if override_url:
+            return override_url
+        else:
+            base_url = site_configuration.build_ecommerce_url(reverse('checkout:receipt'))
+            params = urllib.urlencode({'order_number': order_number}) if order_number else ''
     else:
         base_url = site_configuration.build_lms_url('/commerce/checkout/receipt')
         params = urllib.urlencode({'orderNum': order_number}) if order_number else ''

ecommerce/extensions/payment/processors/cybersource.py

@@ -16,6 +16,7 @@ from suds.wsse import Security, UsernameToken
 
 from ecommerce.core.constants import ISO_8601_FORMAT
 from ecommerce.core.url_utils import get_ecommerce_url
+from ecommerce.extensions.checkout.utils import get_receipt_page_url
 from ecommerce.extensions.payment.constants import CYBERSOURCE_CARD_TYPE_MAP
 from ecommerce.extensions.payment.exceptions import (
     InvalidSignatureError, InvalidCybersourceDecision, PartialAuthorizationError, PCIViolation,
@@ -152,8 +153,12 @@ class Cybersource(BasePaymentProcessor):
             'amount': str(basket.total_incl_tax),
             'currency': basket.currency,
             'consumer_id': basket.owner.username,
-            'override_custom_receipt_page': site.siteconfiguration.build_ecommerce_url(
-                reverse('cybersource_redirect')
+            'override_custom_receipt_page': get_receipt_page_url(
+                site_configuration=site.siteconfiguration,
+                order_number=basket.order_number,
+                override_url=site.siteconfiguration.build_ecommerce_url(
+                    reverse('cybersource_redirect')
+                )
             ),
             'override_custom_cancel_page': self.cancel_page_url,
         }

ecommerce/extensions/payment/tests/views/test_cybersource.py

@@ -44,6 +44,8 @@ class CybersourceSubmitViewTests(CybersourceMixin, TestCase):
         super(CybersourceSubmitViewTests, self).setUp()
         self.user = self.create_user()
         self.client.login(username=self.user.username, password=self.password)
+        self.site.siteconfiguration.enable_otto_receipt_page = True
+        self.site.siteconfiguration.save()
 
     def _generate_data(self, basket_id):
         return {