Refs #654 -- REST API: Allow to resend order link

doc/api/resources/orders.rst

@@ -1145,7 +1145,7 @@ Order state operations
    :statuscode 200: no error
    :statuscode 400: The order cannot be marked as denied since the current order status does not allow it.
    :statuscode 401: Authentication failure
-   :statuscode 403: The requested organizer/event does not exist **or** you have no permission to view this resource.
+   :statuscode 403: The requested organizer/event does not exist **or** you have no permission to update this resource.
    :statuscode 404: The requested order does not exist.
 
 Generating invoices
@@ -1189,6 +1189,38 @@ Generating invoices
    :statuscode 403: The requested organizer/event does not exist **or** you have no permission to view this resource.
    :statuscode 404: The requested order does not exist.
 
+Sending e-mails
+---------------
+
+.. http:post:: /api/v1/organizers/(organizer)/events/(event)/orders/(code)/resend_link/
+
+   Sends an email to the buyer with the link to the order page.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      POST /api/v1/organizers/bigevents/events/sampleconf/orders/ABC12/resend_link/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 204 No Content
+      Vary: Accept
+
+   :param organizer: The ``slug`` field of the organizer to modify
+   :param event: The ``slug`` field of the event to modify
+   :param code: The ``code`` field of the order to send an email for
+   :statuscode 200: no error
+   :statuscode 400: The order does not have an email address associated
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer/event does not exist **or** you have no permission to view this resource.
+   :statuscode 404: The requested order does not exist.
+   :statuscode 503: The email could not be sent.
 
 List of all order positions
 ---------------------------

src/pretix/api/views/order.py

@@ -342,6 +342,20 @@ class OrderViewSet(viewsets.ModelViewSet):
             status=status.HTTP_201_CREATED
         )
 
+    @detail_route(methods=['POST'])
+    def resend_link(self, request, **kwargs):
+        order = self.get_object()
+        if not order.email:
+            return Response({'detail': 'There is no email address associated with this order.'}, status=status.HTTP_400_BAD_REQUEST)
+        try:
+            order.resend_link(user=self.request.user, auth=self.request.auth)
+        except SendMailException:
+            return Response({'detail': _('There was an error sending the mail. Please try again later.')}, status=status.HTTP_503_SERVICE_UNAVAILABLE)
+
+        return Response(
+            status=status.HTTP_204_NO_CONTENT
+        )
+
     @detail_route(methods=['POST'])
     @transaction.atomic
     def regenerate_secrets(self, request, **kwargs):

src/pretix/base/models/orders.py

@@ -715,6 +715,33 @@ class Order(LockModel, LoggedModel):
                     }
                 )
 
+    def resend_link(self, user=None, auth=None):
+        from pretix.multidomain.urlreverse import build_absolute_uri
+
+        with language(self.locale):
+            try:
+                invoice_name = self.invoice_address.name
+                invoice_company = self.invoice_address.company
+            except InvoiceAddress.DoesNotExist:
+                invoice_name = ""
+                invoice_company = ""
+            email_template = self.event.settings.mail_text_resend_link
+            email_context = {
+                'event': self.event.name,
+                'url': build_absolute_uri(self.event, 'presale:event.order', kwargs={
+                    'order': self.code,
+                    'secret': self.secret
+                }),
+                'invoice_name': invoice_name,
+                'invoice_company': invoice_company,
+            }
+            email_subject = _('Your order: %(code)s') % {'code': self.code}
+            self.send_mail(
+                email_subject, email_template, email_context,
+                'pretix.event.order.email.resend', user=user, auth=auth,
+                attach_tickets=True
+            )
+
     @property
     def positions_with_tickets(self):
         for op in self.positions.all():

src/pretix/control/views/orders.py

@@ -1055,33 +1055,11 @@ class OrderResendLink(OrderView):
     permission = 'can_change_orders'
 
     def post(self, *args, **kwargs):
-        with language(self.order.locale):
-            try:
-                try:
-                    invoice_name = self.order.invoice_address.name
-                    invoice_company = self.order.invoice_address.company
-                except InvoiceAddress.DoesNotExist:
-                    invoice_name = ""
-                    invoice_company = ""
-                email_template = self.order.event.settings.mail_text_resend_link
-                email_context = {
-                    'event': self.order.event.name,
-                    'url': build_absolute_uri(self.order.event, 'presale:event.order', kwargs={
-                        'order': self.order.code,
-                        'secret': self.order.secret
-                    }),
-                    'invoice_name': invoice_name,
-                    'invoice_company': invoice_company,
-                }
-                email_subject = _('Your order: %(code)s') % {'code': self.order.code}
-                self.order.send_mail(
-                    email_subject, email_template, email_context,
-                    'pretix.event.order.email.resend', user=self.request.user,
-                    attach_tickets=True
-                )
-            except SendMailException:
-                messages.error(self.request, _('There was an error sending the mail. Please try again later.'))
-                return redirect(self.get_order_url())
+        try:
+            self.order.resend_link(user=self.request.user)
+        except SendMailException:
+            messages.error(self.request, _('There was an error sending the mail. Please try again later.'))
+            return redirect(self.get_order_url())
 
         messages.success(self.request, _('The email has been queued to be sent.'))
         return redirect(self.get_order_url())

src/tests/api/test_orders.py

@@ -2703,3 +2703,24 @@ def test_order_regenerate_secrets(token_client, organizer, event, order):
     order.refresh_from_db()
     assert s != order.secret
     assert ps != order.positions.first().secret
+
+
+@pytest.mark.django_db
+def test_order_resend_link(token_client, organizer, event, order):
+    djmail.outbox = []
+    resp = token_client.post(
+        '/api/v1/organizers/{}/events/{}/orders/{}/resend_link/'.format(
+            organizer.slug, event.slug, order.code
+        ), format='json', data={}
+    )
+    assert resp.status_code == 204
+    assert len(djmail.outbox) == 1
+
+    order.email = None
+    order.save()
+    resp = token_client.post(
+        '/api/v1/organizers/{}/events/{}/orders/{}/resend_link/'.format(
+            organizer.slug, event.slug, order.code
+        ), format='json', data={}
+    )
+    assert resp.status_code == 400