def __init__(self, *args, **kwargs):
user = kwargs.pop('user', None)
if user:
kwargs['initial'].setdefault('name_first', user.first_name)
kwargs['initial'].setdefault('name_last', user.last_name)
kwargs['initial'].setdefault('email_address', user.email)
kwargs['initial'].setdefault('notify_url', notify_url())
kwargs['initial'].setdefault('merchant_id', conf.MERCHANT_ID)
kwargs['initial'].setdefault('merchant_key', conf.MERCHANT_KEY)
super(PayFastForm, self).__init__(*args, **kwargs)
# new order reference number is issued each time form is instantiated
self.order = PayFastOrder.objects.create(
user=user,
amount_gross=self.initial['amount'],
)
self.initial['m_payment_id'] = self.order.pk
# we need self.initial but it is unordered
data = OrderedDict()
for key in self.fields.keys():
data[key] = self.initial.get(key, None)
self._signature = self.fields['signature'].initial = signature(data)
def _notify_data(data, payment_form):
notify_data = data.copy()
# prepare server data
notify_data['m_payment_id'] = payment_form.order.pk
notify_data['amount_gross'] = data['amount']
del notify_data['amount']
del notify_data['merchant_key']
notify_data['signature'] = signature(notify_data)
return notify_data
def _calculate_itn_signature(cls, data):
"""
Calculate the PayFast ITN signature of the given data.
This orders the keys as per the ITN documentation.
"""
data = OrderedDict((key, data[key]) for key in cls.base_fields.keys()
if key in data and key != 'signature')
return signature(data)
def __init__(self, *args, **kwargs):
user = kwargs.pop('user', None)
if user:
kwargs['initial'].setdefault('name_first', user.first_name)
kwargs['initial'].setdefault('name_last', user.last_name)
kwargs['initial'].setdefault('email_address', user.email)
kwargs['initial'].setdefault('notify_url', notify_url())
kwargs['initial'].setdefault('merchant_id', conf.MERCHANT_ID)
kwargs['initial'].setdefault('merchant_key', conf.MERCHANT_KEY)
super(PayFastForm, self).__init__(*args, **kwargs)
if 'm_payment_id' in self.initial:
# If the caller supplies m_payment_id, find the existing order, or create it.
(self.order, created) = PayFastOrder.objects.get_or_create(
m_payment_id=self.initial['m_payment_id'],
defaults=dict(
user=user,
amount_gross=self.initial['amount'],
),
)
if not created:
# If the order is existing, check the user and amount fields,
# and update if necessary.
#
# XXX: Also consistency-check that the order is not paid yet?
#
if not (self.order.user == user
and self.order.amount_gross == self.initial['amount']):
self.order.user = user
self.order.amount_gross = self.initial['amount']
self.order.save()
else:
# Old path: Create a new PayFastOrder each time form is instantiated.
self.order = PayFastOrder.objects.create(
user=user,
amount_gross=self.initial['amount'],
)
# Initialise m_payment_id from the pk.
self.order.m_payment_id = str(self.order.pk)
self.order.save()
self.initial['m_payment_id'] = self.order.m_payment_id
# we need self.initial but it is unordered
data = OrderedDict((key, self.initial[key])
for key in self.fields.keys()
if key in self.initial)
self._signature = self.fields['signature'].initial = signature(data)
def test_signature(self):
data = _test_data()
self.assertEqual(signature(data), 'c71d41dd5041bf28d819fe102ab0106b')