[IMP] stripe: add receipt_email to the order

The email of the recipient must be specified in the charge.
The checkout.js prompt creates a token with the email specified as the name but
to get an email confirmation that the charge succeeded, the receipt_email
parameter must be set.

Side note: the receipt_email is not enough to send email confirmation, it must
also be enabled on Stripe dashboard that generated the access tokens.

Reference: https://support.stripe.com/questions/email-receipts

opw-697759

addons/payment_stripe/controllers/main.py

@@ -32,7 +32,7 @@ class StripeController(http.Controller):
         tx = request.env['payment.transaction'].sudo().browse(
             int(request.session.get('sale_transaction_id') or request.session.get('website_payment_tx_id', False))
         )
-        response = tx._create_stripe_charge(tokenid=post['tokenid'])
+        response = tx._create_stripe_charge(tokenid=post['tokenid'], email=post['email'])
         _logger.info('Stripe: entering form_feedback with post data %s', pprint.pformat(response))
         if response:
             request.env['payment.transaction'].sudo().form_feedback(response, 'stripe')

addons/payment_stripe/models/payment_transaction.py

@@ -17,7 +17,7 @@ _logger = logging.getLogger(__name__)
 class PaymentTransactionStripe(models.Model):
     _inherit = 'payment.transaction'
 
-    def _create_stripe_charge(self, acquirer_ref=None, tokenid=None):
+    def _create_stripe_charge(self, acquirer_ref=None, tokenid=None, email=None):
         api_url_charge = 'https://%s/charges' % (self.acquirer_id._get_stripe_api_url())
         charge_params = {
             'amount': int(self.amount*100),  # Stripe takes amount in cents (https://support.stripe.com/questions/which-zero-decimal-currencies-does-stripe-support)
@@ -28,6 +28,8 @@ class PaymentTransactionStripe(models.Model):
             charge_params['customer'] = acquirer_ref
         if tokenid:
             charge_params['card'] = str(tokenid)
+        if email:
+            charge_params['receipt_email'] = email
         r = requests.post(api_url_charge,
                           auth=(self.acquirer_id.stripe_secret_key, ''),
                           params=charge_params,