211 lines
7.3 KiB
Python
211 lines
7.3 KiB
Python
# -*- coding: utf-8 -*-
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import urlparse
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import string
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from decimal import Decimal
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import uuid
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import hashlib
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from gettext import gettext as _
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from common import PaymentCommon, FORM, Form, PaymentResponse, PAID, ERROR, CANCELED
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'''
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Payment backend module for the ATOS/SIPS system used by many French banks.
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It use the middleware given by the bank.
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The necessary options are:
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- pathfile, to indicate the absolute path of the pathfile file given by the
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bank,
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- binpath, the path of the directory containing the request and response
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executables,
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All the other needed parameters SHOULD already be set in the parmcom files
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contained in the middleware distribution file.
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'''
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__all__ = ['Payment']
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class Payment(PaymentCommon):
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URL = {
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'test': 'https://payment-webinit.simu.sips-atos.com/paymentInit',
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'prod': 'https://payment-webinit.sips-atos.com/paymentInit',
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}
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INTERFACE_VERSION = 'HP_2.3'
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RESPONSE_CODES = {
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'00': 'Authorisation accepted',
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'02': 'Authorisation request to be performed via telephone with the issuer, as the '
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'card authorisation threshold has been exceeded, if the forcing is authorised for '
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'the merchant',
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'03': 'Invalid distance selling contract',
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'05': 'Authorisation refused',
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'12': 'Invalid transaction, verify the parameters transferred in the request.',
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'14': 'Invalid bank details or card security code',
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'17': 'Buyer cancellation',
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'24': 'Operation impossible. The operation the merchant wishes to perform is not '
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'compatible with the status of the transaction.',
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'25': 'Transaction not found in the Sips database',
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'30': 'Format error',
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'34': 'Suspicion of fraud',
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'40': 'Function not supported: the operation that the merchant would like to perform '
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'is not part of the list of operations for which the merchant is authorised',
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'51': 'Amount too high',
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'54': 'Card is past expiry date',
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'60': 'Transaction pending',
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'63': 'Security rules not observed, transaction stopped',
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'75': 'Number of attempts at entering the card number exceeded',
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'90': 'Service temporarily unavailable',
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'94': 'Duplicated transaction: for a given day, the TransactionReference has already been '
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'used',
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'97': 'Timeframe exceeded, transaction refused',
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'99': 'Temporary problem at the Sips Office Server level',
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}
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TEST_MERCHANT_ID = '002001000000001'
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description = {
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'caption': 'SIPS 2',
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'parameters': [
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{
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'name': 'platform',
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'caption': _('Platform'),
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'default': 'test',
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'choices': ['test', 'prod'],
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'required': True,
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},
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{
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'name': 'merchand_id',
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'caption': _('Merchant ID'),
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'default': TEST_MERCHANT_ID,
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'required': True,
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},
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{
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'name': 'secret_key',
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'caption': _('Secret Key'),
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'default': '002001000000001_KEY1',
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'required': True,
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},
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{
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'name': 'key_version',
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'caption': _('Key Version'),
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'default': '1',
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'required': True,
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},
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{
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'name': 'normal_return_url',
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'caption': _('Normal return URL'),
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'default': 'http://www.example.com/',
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'required': True,
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},
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{
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'name': 'automatic_return_url',
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'caption': _('Automatic return URL'),
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'required': False,
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},
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{
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'name': 'currency_code',
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'caption': _('Currency code'),
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'default': '978',
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'choices': ['978'],
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'required': True,
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}
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],
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}
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def __init__(self, options, logger=None):
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super(Payment, self).__init__(options)
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def encode_data(self, data):
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return u'|'.join(u'%s=%s' % (unicode(key), unicode(value))
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for key, value in data.iteritems())
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def seal_data(self, data):
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s = self.encode_data(data)
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s += unicode(self.secret_key)
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s = s.encode('utf-8')
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s = hashlib.sha256(s).hexdigest()
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return s
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def get_data(self):
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data = {}
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data['merchantId'] = self.merchand_id
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data['keyVersion'] = self.key_version
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data['normalReturnUrl'] = self.normal_return_url
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data['currencyCode'] = self.currency_code
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return data
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def get_url(self):
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return self.URL[self.platform]
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def request(self, amount, name=None, address=None, email=None, phone=None, info1=None,
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info2=None, info3=None, next_url=None, **kwargs):
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data = self.get_data()
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transaction_id = self.transaction_id(6, string.digits, 'sips2', data['merchantId'])
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data['transactionReference'] = unicode(transaction_id)
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data['orderId'] = unicode(uuid.uuid4()).replace('-', '')
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data['amount'] = unicode(int(Decimal(amount) * 100))
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if email:
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data['billingContact.email'] = email
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if next_url:
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data['normalReturnUrl'] = next_url
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form = Form(
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url=self.get_url(),
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method='POST',
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fields=[
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{
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'type': 'hidden',
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'name': 'Data',
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'value': self.encode_data(data)
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},
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{
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'type': 'hidden',
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'name': 'Seal',
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'value': self.seal_data(data),
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},
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{
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'type': 'hidden',
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'name': 'InterfaceVersion',
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'value': self.INTERFACE_VERSION,
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},
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])
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self.logger.debug('emitting request %r', data)
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return transaction_id, FORM, form
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def decode_data(self, data):
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data = data.split('|')
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data = [map(unicode, p.split('=')) for p in data]
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return dict(data)
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def check_seal(self, data, seal):
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return seal == self.seal_data(data)
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response_code_to_result = {
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'00': PAID,
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'17': CANCELED,
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}
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def response(self, query_string, **kwargs):
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form = urlparse.parse_qs(query_string)
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self.logger.debug('received query string %r', form)
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assert 'Data' in form
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assert 'Seal' in form
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assert 'InterfaceVersion' in form
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data = self.decode_data(form['Data'][0])
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seal = form['Seal']
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self.logger.debug('parsed response %r seal %r', data, seal)
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signed = self.check_seal(data, seal)
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response_code = data['responseCode']
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transaction_id = data.get('transactionReference')
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result = self.response_code_to_result.get(response_code, ERROR)
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merchant_id = data.get('merchantId')
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test = merchant_id == self.TEST_MERCHANT_ID
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return PaymentResponse(
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result=result,
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signed=signed,
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bank_data=data,
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order_id=transaction_id,
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transaction_id=data.get('authorisationId'),
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bank_status=self.RESPONSE_CODES.get(response_code, u'unknown code - ' + response_code),
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test=test)
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