Stripe: Add support for Swish (#4149)

* Stripe: Add support for Swish

* Update src/pretix/plugins/stripe/payment.py

Co-authored-by: Martin Gross <gross@rami.io>

---------

Co-authored-by: Martin Gross <gross@rami.io>

src/pretix/plugins/stripe/payment.py

@@ -133,7 +133,7 @@ logger = logging.getLogger('pretix.plugins.stripe')
 # - Zip: ✗
 #
 # Real-time payments
-# - Swish: ✗
+# - Swish: ✓
 # - PayNow: ✗
 # - PromptPay: ✗
 # - Pix: ✗
@@ -441,6 +441,14 @@ class StripeSettingsHolder(BasePaymentProvider):
                                  'before they work properly.'),
                      required=False,
                  )),
+                ('method_swish',
+                 forms.BooleanField(
+                     label=_('Swish'),
+                     disabled=self.event.currency != 'SEK',
+                     help_text=_('Some payment methods might need to be enabled in the settings of your Stripe account '
+                                 'before they work properly.'),
+                     required=False,
+                 )),
                 ('method_affirm',
                  forms.BooleanField(
                      label=_('Affirm'),
@@ -1907,3 +1915,27 @@ class StripePayPal(StripeRedirectMethod):
     verbose_name = _('PayPal via Stripe')
     public_name = _('PayPal')
     method = 'paypal'
+
+
+class StripeSwish(StripeRedirectMethod):
+    identifier = 'stripe_swish'
+    verbose_name = _('Swish via Stripe')
+    public_name = _('Swish')
+    method = 'swish'
+    confirmation_method = 'automatic'
+    explanation = _(
+        'This payment method is available to users of the Swedish apps Swish and BankID. Please have your app '
+        'ready.'
+    )
+
+    def _payment_intent_kwargs(self, request, payment):
+        return {
+            "payment_method_data": {
+                "type": "swish",
+            },
+            "payment_method_options": {
+                "swish": {
+                    "reference": payment.order.full_code,
+                },
+            }
+        }

src/pretix/plugins/stripe/signals.py

@@ -48,13 +48,13 @@ def register_payment_provider(sender, **kwargs):
         StripeAffirm, StripeAlipay, StripeBancontact, StripeCC, StripeEPS,
         StripeGiropay, StripeIdeal, StripeKlarna, StripeMultibanco,
         StripePayPal, StripePrzelewy24, StripeSEPADirectDebit,
-        StripeSettingsHolder, StripeSofort, StripeWeChatPay,
+        StripeSettingsHolder, StripeSofort, StripeSwish, StripeWeChatPay,
     )
 
     return [
         StripeSettingsHolder, StripeCC, StripeGiropay, StripeIdeal, StripeAlipay, StripeBancontact,
         StripeSofort, StripeEPS, StripeMultibanco, StripePrzelewy24, StripeWeChatPay,
-        StripeSEPADirectDebit, StripeAffirm, StripeKlarna, StripePayPal,
+        StripeSEPADirectDebit, StripeAffirm, StripeKlarna, StripePayPal, StripeSwish
     ]
 
 

src/pretix/plugins/stripe/views.py

@@ -599,7 +599,8 @@ class ScaView(StripeOrderView, View):
             return self._redirect_to_order()
 
         if intent.status == 'requires_action' and intent.next_action.type in [
-            'use_stripe_sdk', 'redirect_to_url', 'alipay_handle_redirect', 'wechat_pay_display_qr_code'
+            'use_stripe_sdk', 'redirect_to_url', 'alipay_handle_redirect', 'wechat_pay_display_qr_code',
+            'swish_handle_redirect_or_display_qr_code',
         ]:
             ctx = {
                 'order': self.order,
@@ -611,6 +612,9 @@ class ScaView(StripeOrderView, View):
             elif intent.next_action.type == 'redirect_to_url':
                 ctx['payment_intent_next_action_redirect_url'] = intent.next_action.redirect_to_url['url']
                 ctx['payment_intent_redirect_action_handling'] = prov.redirect_action_handling
+            elif intent.next_action.type == 'swish_handle_redirect_or_display_qr_code':
+                ctx['payment_intent_next_action_redirect_url'] = intent.next_action.swish_handle_redirect_or_display_qr_code['hosted_instructions_url']
+                ctx['payment_intent_redirect_action_handling'] = 'iframe'
 
             r = render(request, 'pretixplugins/stripe/sca.html', ctx)
             r._csp_ignore = True