Add request argument to contact_form_fields signal

src/pretix/presale/checkoutflow.py

@@ -312,6 +312,7 @@ class QuestionsStep(QuestionsViewMixin, CartMixin, TemplateFlowStep):
         initial.update(self.cart_session.get('contact_form_data', {}))
         return ContactForm(data=self.request.POST if self.request.method == "POST" else None,
                            event=self.request.event,
+                           request=self.request,
                            initial=initial)
 
     @cached_property
@@ -517,7 +518,7 @@ class ConfirmStep(CartMixin, AsyncAction, TemplateFlowStep):
         ctx['cart_session'] = self.cart_session
 
         ctx['contact_info'] = []
-        responses = contact_form_fields.send(self.event)
+        responses = contact_form_fields.send(self.event, request=self.request)
         for r, response in sorted(responses, key=lambda r: str(r[0])):
             for key, value in response.items():
                 v = self.cart_session.get('contact_form_data', {}).get(key)

src/pretix/presale/forms/checkout.py

@@ -27,6 +27,7 @@ class ContactForm(forms.Form):
 
     def __init__(self, *args, **kwargs):
         self.event = kwargs.pop('event')
+        self.request = kwargs.pop('request')
         super().__init__(*args, **kwargs)
 
         if self.event.settings.order_email_asked_twice:
@@ -35,7 +36,7 @@ class ContactForm(forms.Form):
                 help_text=_('Please enter the same email address again to make sure you typed it correctly.')
             )
 
-        responses = contact_form_fields.send(self.event)
+        responses = contact_form_fields.send(self.event, request=self.request)
         for r, response in sorted(responses, key=lambda r: str(r[0])):
             for key, value in response.items():
                 # We need to be this explicit, since OrderedDict.update does not retain ordering

src/pretix/presale/signals.py

@@ -100,7 +100,8 @@ and by default only asks for the email address. You are supposed to return a dic
 form fields with globally unique keys. The validated form results will be saved into the
 ``contact_form_data`` entry of the order's meta_info dictionary.
 
-As with all plugin signals, the ``sender`` keyword argument will contain the event.
+As with all plugin signals, the ``sender`` keyword argument will contain the event. A ``request``
+argument will contain the request object.
 """
 
 question_form_fields = EventPluginSignal(