forked from CGM_Public/pretix_original
3c3e59e932
* Refs #99 -- Fix stripe support for zero-decimal currencies * Add new money formatting method * Force decimal places in many places * Locale-aware currency rendering * Fix currencies in more places * More currency fixes
758 lines
29 KiB
Python
758 lines
29 KiB
Python
import hashlib
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import json
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import logging
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from collections import OrderedDict
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import stripe
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from django import forms
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from django.conf import settings
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from django.contrib import messages
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from django.template.loader import get_template
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from django.utils.translation import ugettext, ugettext_lazy as _
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from pretix.base.models import Event, Quota, RequiredAction
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from pretix.base.payment import BasePaymentProvider, PaymentException
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from pretix.base.services.mail import SendMailException
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from pretix.base.services.orders import mark_order_paid, mark_order_refunded
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from pretix.base.settings import SettingsSandbox
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from pretix.helpers.urls import build_absolute_uri as build_global_uri
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from pretix.multidomain.urlreverse import build_absolute_uri
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from pretix.plugins.stripe.models import ReferencedStripeObject
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logger = logging.getLogger('pretix.plugins.stripe')
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class RefundForm(forms.Form):
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auto_refund = forms.ChoiceField(
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initial='auto',
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label=_('Refund automatically?'),
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choices=(
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('auto', _('Automatically refund charge with Stripe')),
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('manual', _('Do not send refund instruction to Stripe, only mark as refunded in pretix'))
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),
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widget=forms.RadioSelect,
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)
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class StripeKeyValidator():
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def __init__(self, prefix):
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assert isinstance(prefix, str)
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assert len(prefix) > 0
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self._prefix = prefix
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def __call__(self, value):
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if not value.startswith(self._prefix):
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raise forms.ValidationError(
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_('The provided key "%(value)s" does not look valid. It should start with "%(prefix)s".'),
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code='invalid-stripe-secret-key',
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params={
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'value': value,
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'prefix': self._prefix,
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},
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)
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class StripeSettingsHolder(BasePaymentProvider):
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identifier = 'stripe_settings'
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verbose_name = _('Stripe')
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is_enabled = False
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is_meta = True
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def __init__(self, event: Event):
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super().__init__(event)
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self.settings = SettingsSandbox('payment', 'stripe', event)
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def settings_content_render(self, request):
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return "<div class='alert alert-info'>%s<br /><code>%s</code></div>" % (
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_('Please configure a <a href="https://dashboard.stripe.com/account/webhooks">Stripe Webhook</a> to '
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'the following endpoint in order to automatically cancel orders when charges are refunded externally '
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'and to process asynchronous payment methods like SOFORT.'),
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build_global_uri('plugins:stripe:webhook')
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)
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@property
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def settings_form_fields(self):
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return OrderedDict(
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list(super().settings_form_fields.items()) + [
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('secret_key',
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forms.CharField(
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label=_('Secret key'),
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help_text=_('<a target="_blank" rel="noopener" href="{docs_url}">{text}</a>').format(
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text=_('Click here for a tutorial on how to obtain the required keys'),
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docs_url='https://docs.pretix.eu/en/latest/user/payments/stripe.html'
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),
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validators=(
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StripeKeyValidator('sk_'),
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),
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)),
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('publishable_key',
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forms.CharField(
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label=_('Publishable key'),
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validators=(
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StripeKeyValidator('pk_'),
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),
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)),
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('ui',
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forms.ChoiceField(
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label=_('User interface'),
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choices=(
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('pretix', _('Simple (pretix design)')),
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('checkout', _('Stripe Checkout')),
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),
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help_text=_('Only relevant for credit card payments.')
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)),
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('method_cc',
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forms.BooleanField(
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label=_('Credit card payments'),
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required=False,
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)),
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('method_giropay',
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forms.BooleanField(
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label=_('giropay'),
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disabled=self.event.currency != 'EUR',
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help_text=_('Needs to be enabled in your Stripe account first.'),
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required=False,
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)),
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('method_ideal',
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forms.BooleanField(
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label=_('iDEAL'),
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disabled=self.event.currency != 'EUR',
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help_text=_('Needs to be enabled in your Stripe account first.'),
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required=False,
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)),
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('method_alipay',
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forms.BooleanField(
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label=_('Alipay'),
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disabled=self.event.currency not in ('EUR', 'AUD', 'CAD', 'GBP', 'HKD', 'JPY', 'NZD', 'SGD', 'USD'),
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help_text=_('Needs to be enabled in your Stripe account first.'),
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required=False,
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)),
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('method_bancontact',
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forms.BooleanField(
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label=_('Bancontact'),
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disabled=self.event.currency != 'EUR',
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help_text=_('Needs to be enabled in your Stripe account first.'),
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required=False,
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)),
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('method_sofort',
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forms.BooleanField(
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label=_('SOFORT'),
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disabled=self.event.currency != 'EUR',
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help_text=_('Needs to be enabled in your Stripe account first. Note that, despite the name, '
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'payments are not immediately confirmed but might take some time.'),
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required=False,
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)),
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]
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)
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class StripeMethod(BasePaymentProvider):
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identifier = ''
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method = ''
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def __init__(self, event: Event):
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super().__init__(event)
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self.settings = SettingsSandbox('payment', 'stripe', event)
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@property
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def settings_form_fields(self):
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return {}
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@property
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def is_enabled(self) -> bool:
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return self.settings.get('_enabled', as_type=bool) and self.settings.get('method_{}'.format(self.method),
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as_type=bool)
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def order_prepare(self, request, order):
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return self.checkout_prepare(request, None)
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def _get_amount(self, order):
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places = settings.CURRENCY_PLACES.get(self.event.currency, 2)
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return int(order.total * 10 ** places)
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def _init_api(self):
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stripe.api_version = '2017-06-05'
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stripe.api_key = self.settings.get('secret_key')
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def checkout_confirm_render(self, request) -> str:
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template = get_template('pretixplugins/stripe/checkout_payment_confirm.html')
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ctx = {'request': request, 'event': self.event, 'settings': self.settings, 'provider': self}
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return template.render(ctx)
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def order_can_retry(self, order):
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return self._is_still_available(order=order)
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def _charge_source(self, request, source, order):
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try:
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charge = stripe.Charge.create(
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amount=self._get_amount(order),
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currency=self.event.currency.lower(),
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source=source,
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metadata={
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'order': str(order.id),
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'event': self.event.id,
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'code': order.code
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},
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# TODO: Is this sufficient?
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idempotency_key=str(self.event.id) + order.code + source
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)
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except stripe.error.CardError as e:
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if e.json_body:
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err = e.json_body['error']
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logger.exception('Stripe error: %s' % str(err))
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else:
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err = {'message': str(e)}
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logger.exception('Stripe error: %s' % str(e))
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logger.info('Stripe card error: %s' % str(err))
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order.payment_info = json.dumps({
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'error': True,
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'message': err['message'],
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})
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order.save(update_fields=['payment_info'])
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raise PaymentException(_('Stripe reported an error with your card: %s') % err['message'])
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except stripe.error.StripeError as e:
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if e.json_body:
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err = e.json_body['error']
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logger.exception('Stripe error: %s' % str(err))
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else:
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err = {'message': str(e)}
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logger.exception('Stripe error: %s' % str(e))
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order.payment_info = json.dumps({
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'error': True,
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'message': err['message'],
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})
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order.save(update_fields=['payment_info'])
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raise PaymentException(_('We had trouble communicating with Stripe. Please try again and get in touch '
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'with us if this problem persists.'))
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else:
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ReferencedStripeObject.objects.get_or_create(order=order, reference=charge.id)
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if charge.status == 'succeeded' and charge.paid:
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try:
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mark_order_paid(order, self.identifier, str(charge))
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except Quota.QuotaExceededException as e:
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RequiredAction.objects.create(
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event=self.event, action_type='pretix.plugins.stripe.overpaid', data=json.dumps({
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'order': order.code,
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'charge': charge.id
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})
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)
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raise PaymentException(str(e))
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except SendMailException:
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raise PaymentException(_('There was an error sending the confirmation mail.'))
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elif charge.status == 'pending':
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if request:
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messages.warning(request, _('Your payment is pending completion. We will inform you as soon as the '
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'payment completed.'))
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order.payment_info = str(charge)
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order.save(update_fields=['payment_info'])
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return
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else:
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logger.info('Charge failed: %s' % str(charge))
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order.payment_info = str(charge)
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order.save(update_fields=['payment_info'])
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raise PaymentException(_('Stripe reported an error: %s') % charge.failure_message)
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def order_pending_render(self, request, order) -> str:
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if order.payment_info:
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payment_info = json.loads(order.payment_info)
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else:
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payment_info = None
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template = get_template('pretixplugins/stripe/pending.html')
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ctx = {
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'request': request,
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'event': self.event,
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'settings': self.settings,
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'provider': self,
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'order': order,
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'payment_info': payment_info,
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}
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return template.render(ctx)
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def order_control_render(self, request, order) -> str:
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if order.payment_info:
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payment_info = json.loads(order.payment_info)
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if 'amount' in payment_info:
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payment_info['amount'] /= 10 ** settings.CURRENCY_PLACES.get(self.event.currency, 2)
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else:
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payment_info = None
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template = get_template('pretixplugins/stripe/control.html')
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ctx = {
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'request': request,
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'event': self.event,
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'settings': self.settings,
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'payment_info': payment_info,
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'order': order,
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'method': self.method,
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'provider': self,
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}
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return template.render(ctx)
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def _refund_form(self, request):
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return RefundForm(data=request.POST if request.method == "POST" else None)
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def order_control_refund_render(self, order, request) -> str:
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template = get_template('pretixplugins/stripe/control_refund.html')
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ctx = {
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'request': request,
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'form': self._refund_form(request),
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}
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return template.render(ctx)
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def order_control_refund_perform(self, request, order) -> "bool|str":
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self._init_api()
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f = self._refund_form(request)
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if not f.is_valid():
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messages.error(request, _('Your input was invalid, please try again.'))
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return
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elif f.cleaned_data.get('auto_refund') == 'manual':
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order = mark_order_refunded(order, user=request.user)
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order.payment_manual = True
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order.save()
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return
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if order.payment_info:
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payment_info = json.loads(order.payment_info)
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else:
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payment_info = None
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if not payment_info:
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mark_order_refunded(order, user=request.user)
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messages.warning(request, _('We were unable to transfer the money back automatically. '
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'Please get in touch with the customer and transfer it back manually.'))
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return
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try:
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ch = stripe.Charge.retrieve(payment_info['id'])
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ch.refunds.create()
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ch.refresh()
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except (stripe.error.InvalidRequestError, stripe.error.AuthenticationError, stripe.error.APIConnectionError) \
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as e:
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if e.json_body:
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err = e.json_body['error']
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logger.exception('Stripe error: %s' % str(err))
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else:
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err = {'message': str(e)}
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logger.exception('Stripe error: %s' % str(e))
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messages.error(request, _('We had trouble communicating with Stripe. Please try again and contact '
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'support if the problem persists.'))
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logger.error('Stripe error: %s' % str(err))
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except stripe.error.StripeError:
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mark_order_refunded(order, user=request.user)
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messages.warning(request, _('We were unable to transfer the money back automatically. '
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'Please get in touch with the customer and transfer it back manually.'))
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else:
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order = mark_order_refunded(order, user=request.user)
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order.payment_info = str(ch)
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order.save()
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def payment_perform(self, request, order) -> str:
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self._init_api()
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try:
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source = self._create_source(request, order)
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except stripe.error.StripeError as e:
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if e.json_body:
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err = e.json_body['error']
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logger.exception('Stripe error: %s' % str(err))
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else:
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err = {'message': str(e)}
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logger.exception('Stripe error: %s' % str(e))
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order.payment_info = json.dumps({
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'error': True,
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'message': err['message'],
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})
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order.save(update_fields=['payment_info'])
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raise PaymentException(_('We had trouble communicating with Stripe. Please try again and get in touch '
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'with us if this problem persists.'))
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ReferencedStripeObject.objects.get_or_create(order=order, reference=source.id)
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order.payment_info = str(source)
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order.save(update_fields=['payment_info'])
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request.session['payment_stripe_order_secret'] = order.secret
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return source.redirect.url
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class StripeCC(StripeMethod):
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identifier = 'stripe'
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verbose_name = _('Credit card via Stripe')
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public_name = _('Credit card')
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method = 'cc'
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def payment_form_render(self, request) -> str:
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ui = self.settings.get('ui', default='pretix')
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if ui == 'checkout':
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template = get_template('pretixplugins/stripe/checkout_payment_form_stripe_checkout.html')
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else:
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template = get_template('pretixplugins/stripe/checkout_payment_form.html')
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ctx = {
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'request': request,
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'event': self.event,
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'settings': self.settings,
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}
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return template.render(ctx)
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def payment_is_valid_session(self, request):
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return request.session.get('payment_stripe_token', '') != ''
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def checkout_prepare(self, request, cart):
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token = request.POST.get('stripe_token', '')
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request.session['payment_stripe_token'] = token
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request.session['payment_stripe_brand'] = request.POST.get('stripe_card_brand', '')
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request.session['payment_stripe_last4'] = request.POST.get('stripe_card_last4', '')
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if token == '':
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messages.error(request, _('You may need to enable JavaScript for Stripe payments.'))
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return False
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return True
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def payment_perform(self, request, order) -> str:
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self._init_api()
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if request.session['payment_stripe_token'].startswith('src_'):
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try:
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src = stripe.Source.retrieve(request.session['payment_stripe_token'])
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if src.type == 'card' and src.card and src.card.three_d_secure == 'required':
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request.session['payment_stripe_order_secret'] = order.secret
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source = stripe.Source.create(
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type='three_d_secure',
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amount=self._get_amount(order),
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currency=self.event.currency.lower(),
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three_d_secure={
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'card': src.id
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},
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metadata={
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'order': str(order.id),
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'event': self.event.id,
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'code': order.code
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},
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redirect={
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'return_url': build_absolute_uri(self.event, 'plugins:stripe:return', kwargs={
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'order': order.code,
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'hash': hashlib.sha1(order.secret.lower().encode()).hexdigest(),
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})
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},
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)
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if source.status == "pending":
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order.payment_info = str(source)
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order.save(update_fields=['payment_info'])
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return source.redirect.url
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except stripe.error.StripeError as e:
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if e.json_body:
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err = e.json_body['error']
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logger.exception('Stripe error: %s' % str(err))
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else:
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err = {'message': str(e)}
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logger.exception('Stripe error: %s' % str(e))
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order.payment_info = json.dumps({
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'error': True,
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'message': err['message'],
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})
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order.save(update_fields=['payment_info'])
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raise PaymentException(_('We had trouble communicating with Stripe. Please try again and get in touch '
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'with us if this problem persists.'))
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try:
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self._charge_source(request, request.session['payment_stripe_token'], order)
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finally:
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del request.session['payment_stripe_token']
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class StripeGiropay(StripeMethod):
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identifier = 'stripe_giropay'
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verbose_name = _('giropay via Stripe')
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public_name = _('giropay')
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method = 'giropay'
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def payment_form_render(self, request) -> str:
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template = get_template('pretixplugins/stripe/checkout_payment_form_giropay.html')
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ctx = {
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'request': request,
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'event': self.event,
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'settings': self.settings,
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'form': self.payment_form(request)
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}
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return template.render(ctx)
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@property
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def payment_form_fields(self):
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return OrderedDict([
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('account', forms.CharField(label=_('Account holder'))),
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])
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def _create_source(self, request, order):
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try:
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source = stripe.Source.create(
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type='giropay',
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amount=self._get_amount(order),
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currency=self.event.currency.lower(),
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metadata={
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'order': str(order.id),
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'event': self.event.id,
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'code': order.code
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},
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owner={
|
|
'name': request.session.get('payment_stripe_giropay_account') or ugettext('unknown name')
|
|
},
|
|
giropay={
|
|
'statement_descriptor': ugettext('{event}-{code}').format(
|
|
event=self.event.slug.upper(),
|
|
code=order.code
|
|
)[:35]
|
|
},
|
|
redirect={
|
|
'return_url': build_absolute_uri(self.event, 'plugins:stripe:return', kwargs={
|
|
'order': order.code,
|
|
'hash': hashlib.sha1(order.secret.lower().encode()).hexdigest(),
|
|
})
|
|
},
|
|
)
|
|
return source
|
|
finally:
|
|
if 'payment_stripe_giropay_account' in request.session:
|
|
del request.session['payment_stripe_giropay_account']
|
|
|
|
def payment_is_valid_session(self, request):
|
|
return (
|
|
request.session.get('payment_stripe_giropay_account', '') != ''
|
|
)
|
|
|
|
def checkout_prepare(self, request, cart):
|
|
form = self.payment_form(request)
|
|
if form.is_valid():
|
|
request.session['payment_stripe_giropay_account'] = form.cleaned_data['account']
|
|
return True
|
|
return False
|
|
|
|
|
|
class StripeIdeal(StripeMethod):
|
|
identifier = 'stripe_ideal'
|
|
verbose_name = _('iDEAL via Stripe')
|
|
public_name = _('iDEAL')
|
|
method = 'ideal'
|
|
|
|
def payment_form_render(self, request) -> str:
|
|
template = get_template('pretixplugins/stripe/checkout_payment_form_simple.html')
|
|
ctx = {
|
|
'request': request,
|
|
'event': self.event,
|
|
'settings': self.settings,
|
|
}
|
|
return template.render(ctx)
|
|
|
|
def _create_source(self, request, order):
|
|
source = stripe.Source.create(
|
|
type='ideal',
|
|
amount=self._get_amount(order),
|
|
currency=self.event.currency.lower(),
|
|
metadata={
|
|
'order': str(order.id),
|
|
'event': self.event.id,
|
|
'code': order.code
|
|
},
|
|
ideal={
|
|
'statement_descriptor': ugettext('{event}-{code}').format(
|
|
event=self.event.slug.upper(),
|
|
code=order.code
|
|
)
|
|
},
|
|
redirect={
|
|
'return_url': build_absolute_uri(self.event, 'plugins:stripe:return', kwargs={
|
|
'order': order.code,
|
|
'hash': hashlib.sha1(order.secret.lower().encode()).hexdigest(),
|
|
})
|
|
},
|
|
)
|
|
return source
|
|
|
|
def payment_is_valid_session(self, request):
|
|
return True
|
|
|
|
def checkout_prepare(self, request, cart):
|
|
return True
|
|
|
|
|
|
class StripeAlipay(StripeMethod):
|
|
identifier = 'stripe_alipay'
|
|
verbose_name = _('Alipay via Stripe')
|
|
public_name = _('Alipay')
|
|
method = 'alipay'
|
|
|
|
def payment_form_render(self, request) -> str:
|
|
template = get_template('pretixplugins/stripe/checkout_payment_form_simple.html')
|
|
ctx = {
|
|
'request': request,
|
|
'event': self.event,
|
|
'settings': self.settings,
|
|
}
|
|
return template.render(ctx)
|
|
|
|
def _create_source(self, request, order):
|
|
source = stripe.Source.create(
|
|
type='alipay',
|
|
amount=self._get_amount(order),
|
|
currency=self.event.currency.lower(),
|
|
metadata={
|
|
'order': str(order.id),
|
|
'event': self.event.id,
|
|
'code': order.code
|
|
},
|
|
redirect={
|
|
'return_url': build_absolute_uri(self.event, 'plugins:stripe:return', kwargs={
|
|
'order': order.code,
|
|
'hash': hashlib.sha1(order.secret.lower().encode()).hexdigest(),
|
|
})
|
|
},
|
|
)
|
|
return source
|
|
|
|
def payment_is_valid_session(self, request):
|
|
return True
|
|
|
|
def checkout_prepare(self, request, cart):
|
|
return True
|
|
|
|
|
|
class StripeBancontact(StripeMethod):
|
|
identifier = 'stripe_bancontact'
|
|
verbose_name = _('Bancontact via Stripe')
|
|
public_name = _('Bancontact')
|
|
method = 'bancontact'
|
|
|
|
def payment_form_render(self, request) -> str:
|
|
template = get_template('pretixplugins/stripe/checkout_payment_form_bancontact.html')
|
|
ctx = {
|
|
'request': request,
|
|
'event': self.event,
|
|
'settings': self.settings,
|
|
'form': self.payment_form(request)
|
|
}
|
|
return template.render(ctx)
|
|
|
|
@property
|
|
def payment_form_fields(self):
|
|
return OrderedDict([
|
|
('account', forms.CharField(label=_('Account holder'), min_length=3)),
|
|
])
|
|
|
|
def _create_source(self, request, order):
|
|
try:
|
|
source = stripe.Source.create(
|
|
type='bancontact',
|
|
amount=self._get_amount(order),
|
|
currency=self.event.currency.lower(),
|
|
metadata={
|
|
'order': str(order.id),
|
|
'event': self.event.id,
|
|
'code': order.code
|
|
},
|
|
owner={
|
|
'name': request.session.get('payment_stripe_bancontact_account') or ugettext('unknown name')
|
|
},
|
|
bancontact={
|
|
'statement_descriptor': ugettext('{event}-{code}').format(
|
|
event=self.event.slug.upper(),
|
|
code=order.code
|
|
)[:35]
|
|
},
|
|
redirect={
|
|
'return_url': build_absolute_uri(self.event, 'plugins:stripe:return', kwargs={
|
|
'order': order.code,
|
|
'hash': hashlib.sha1(order.secret.lower().encode()).hexdigest(),
|
|
})
|
|
},
|
|
)
|
|
return source
|
|
finally:
|
|
if 'payment_stripe_bancontact_account' in request.session:
|
|
del request.session['payment_stripe_bancontact_account']
|
|
|
|
def payment_is_valid_session(self, request):
|
|
return (
|
|
request.session.get('payment_stripe_bancontact_account', '') != ''
|
|
)
|
|
|
|
def checkout_prepare(self, request, cart):
|
|
form = self.payment_form(request)
|
|
if form.is_valid():
|
|
request.session['payment_stripe_bancontact_account'] = form.cleaned_data['account']
|
|
return True
|
|
return False
|
|
|
|
|
|
class StripeSofort(StripeMethod):
|
|
identifier = 'stripe_sofort'
|
|
verbose_name = _('SOFORT via Stripe')
|
|
public_name = _('SOFORT')
|
|
method = 'sofort'
|
|
|
|
def payment_form_render(self, request) -> str:
|
|
template = get_template('pretixplugins/stripe/checkout_payment_form_sofort.html')
|
|
ctx = {
|
|
'request': request,
|
|
'event': self.event,
|
|
'settings': self.settings,
|
|
'form': self.payment_form(request)
|
|
}
|
|
return template.render(ctx)
|
|
|
|
@property
|
|
def payment_form_fields(self):
|
|
return OrderedDict([
|
|
('bank_country', forms.ChoiceField(label=_('Country of your bank'), choices=(
|
|
('de', _('Germany')),
|
|
('at', _('Austria')),
|
|
('be', _('Belgium')),
|
|
('nl', _('Netherlands')),
|
|
('es', _('Spain'))
|
|
))),
|
|
])
|
|
|
|
def _create_source(self, request, order):
|
|
source = stripe.Source.create(
|
|
type='sofort',
|
|
amount=self._get_amount(order),
|
|
currency=self.event.currency.lower(),
|
|
metadata={
|
|
'order': str(order.id),
|
|
'event': self.event.id,
|
|
'code': order.code
|
|
},
|
|
sofort={
|
|
'country': request.session.get('payment_stripe_sofort_bank_country'),
|
|
'statement_descriptor': ugettext('{event}-{code}').format(
|
|
event=self.event.slug.upper(),
|
|
code=order.code
|
|
)[:35]
|
|
},
|
|
redirect={
|
|
'return_url': build_absolute_uri(self.event, 'plugins:stripe:return', kwargs={
|
|
'order': order.code,
|
|
'hash': hashlib.sha1(order.secret.lower().encode()).hexdigest(),
|
|
})
|
|
},
|
|
)
|
|
return source
|
|
|
|
def payment_is_valid_session(self, request):
|
|
return (
|
|
request.session.get('payment_stripe_sofort_bank_country', '') != ''
|
|
)
|
|
|
|
def checkout_prepare(self, request, cart):
|
|
form = self.payment_form(request)
|
|
if form.is_valid():
|
|
request.session['payment_stripe_sofort_bank_country'] = form.cleaned_data['bank_country']
|
|
return True
|
|
return False
|
|
|
|
def order_can_retry(self, order):
|
|
try:
|
|
if order.payment_info:
|
|
d = json.loads(order.payment_info)
|
|
if d.get('object') == 'charge' and d.get('status') == 'pending':
|
|
return False
|
|
except ValueError:
|
|
pass
|
|
return self._is_still_available(order=order)
|