def test_known_good_itn_signature(self):
known_good_itn_data = {
'amount_fee': '-2.80',
'amount_gross': '123.00',
'amount_net': '120.20',
'custom_int1': '',
'custom_int2': '',
'custom_int3': '',
'custom_int4': '',
'custom_int5': '',
'custom_str1': '',
'custom_str2': '',
'custom_str3': '',
'custom_str4': '',
'custom_str5': '',
'email_address': '*****@*****.**',
'item_description': '',
'item_name': 'Flux capacitor',
'm_payment_id': '',
'merchant_id': '10000100',
'name_first': 'Test',
'name_last': 'User 01',
'payment_status': 'COMPLETE',
'pf_payment_id': '558900',
'signature': '94b05677771813701468289ed3cabed1',
}
calculated_signature = api.itn_signature(known_good_itn_data)
assert known_good_itn_data['signature'] == calculated_signature
def _itn_data_from_checkout(checkout_data, payment_form):
notify_data = checkout_data.copy()
# prepare server data
notify_data['m_payment_id'] = payment_form.order.m_payment_id
notify_data['amount_gross'] = checkout_data['amount']
# Fields not part of ITN submissions:
del notify_data['notify_url']
del notify_data['amount']
del notify_data['merchant_key']
# Sign:
notify_data['signature'] = api.itn_signature(notify_data)
return notify_data
def clean(self):
self.ip = self.request.META.get(conf.IP_HEADER, None)
if not is_payfast_ip_address(self.ip):
raise forms.ValidationError('untrusted ip: %s' % self.ip)
# Verify signature
sig = api.itn_signature(self.data)
if sig != self.cleaned_data['signature']:
raise forms.ValidationError('Signature is invalid: %s != %s' % (
sig, self.cleaned_data['signature'],))
if conf.USE_POSTBACK:
is_valid = api.data_is_valid(self.request.POST, conf.SERVER)
if is_valid is None:
raise forms.ValidationError('Postback fails')
if not is_valid:
raise forms.ValidationError('Postback validation fails')
return self.cleaned_data
def test_invalid_request(self):
form = PayFastForm(initial={'amount': 100, 'item_name': 'foo'})
notify_data = {'m_payment_id': form.order.m_payment_id}
notify_data['signature'] = api.itn_signature(notify_data)
response = self.client.post(notify_url(), notify_data)
expected_amount = ('100' if django.VERSION <
(1, 8) else '100.00' if django.VERSION <
(2, 0) else '100')
self._assertBadRequest(
response, {
'amount_gross': [{
'code':
'',
'message': ('Amount is not the same: {} != None'.format(
expected_amount))
}],
'item_name': [{
'code': 'required',
'message': 'This field is required.'
}],
'merchant_id': [{
'code': 'required',
'message': 'This field is required.'
}],
})
self.assertEqual(self.notify_handler_orders, [])
order = _order()
self.assertEqual(order.request_ip, '127.0.0.1')
self.assertEqual(
set(order.debug_info.split('|')),
{
'amount_gross: Amount is not the same: {} != None'.format(
'100' if django.VERSION < (1, 8) else
# Django 1.8+ returns more precise DecimalField values
'100.00' if django.VERSION < (2, 0) else
# Django 2.0+ returns less precise DecimalField values again.
'100'),
'item_name: This field is required.',
'merchant_id: This field is required.',
})
self.assertEqual(order.trusted, False)
def do_payment(
checkout_data, # Dict[str, str]
parsed_checkout, # Dict[str, str]
enable_itn, # type: bool
): # type: (...) -> Dict[str, str]
"""
Common test helper: do a payment, and assert results.
This takes a checkout's data and page parse (for session info and assertions).
This will enable and verify ITN processing if `enable_itn` is true.
Return the payment confirmation page's parse.
"""
def _post_payment(): # type: () -> requests.Response
return post_sandbox_payment(
parsed_checkout['session_type'],
parsed_checkout['session_id'],
parsed_checkout['payment_method'],
)
if enable_itn:
require_itn_configured()
with itn_handler(ITN_HOST, ITN_PORT) as itn_queue: # type: Queue
response = _post_payment()
itn_data = itn_queue.get(timeout=2)
else:
response = _post_payment()
parsed_payment = parse_payfast_page(response)
assert {
'payment_summary': parsed_checkout['payment_summary'],
'notice': 'Your payment was successful\n'
} == parsed_payment
if enable_itn:
# Check the ITN result.
# Expect whitespace-stripped versions of the checkout data.
expected = {
name: value.strip(api.CHECKOUT_SIGNATURE_IGNORED_WHITESPACE)
for (name, value) in checkout_data.items()
}
expected_amount_gross = '{:.2f}'.format(
decimal.Decimal(checkout_data['amount'].strip()))
expected_signature = api.itn_signature(itn_data)
assert {
'm_payment_id': expected.get('m_payment_id', ''),
'pf_payment_id': itn_data.get('pf_payment_id', 'MISSING'),
'payment_status': 'COMPLETE',
'item_name': expected.get('item_name', 'MISSING'),
'item_description': expected.get('item_description', ''),
'amount_gross': expected_amount_gross,
'amount_fee': itn_data.get('amount_fee', 'MISSING'),
'amount_net': itn_data.get('amount_net', 'MISSING'),
'custom_str1': expected.get('custom_str1', ''),
'custom_str2': expected.get('custom_str2', ''),
'custom_str3': expected.get('custom_str3', ''),
'custom_str4': expected.get('custom_str4', ''),
'custom_str5': expected.get('custom_str5', ''),
'custom_int1': expected.get('custom_int1', ''),
'custom_int2': expected.get('custom_int2', ''),
'custom_int3': expected.get('custom_int3', ''),
'custom_int4': expected.get('custom_int4', ''),
'custom_int5': expected.get('custom_int5', ''),
# The sandbox seems to fix these names, rather than using the checkout submission data.
'name_first': 'Test',
'name_last': 'User 01',
'email_address': expected.get('email_address',
'*****@*****.**'),
'merchant_id': '10000100',
'signature': expected_signature,
} == itn_data
return parsed_payment
