[ADD] Nuevo modulo para pagos con tarjeta de credito (sermepa-redsys)

payment_redsys/README.rst

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+Pasarela de pago Redsys
+=======================
+
+
+Este modulo añade la opcion de pago a traves de la pasarela de Redsys
+
+
+
+PARAMETROS:
+
+Nombre del comercio: Indicaremos el nombre del comercio.
+
+Número de comercio (FUC): Indicaremos el número de comercio que
+nuestra entidad nos ha comunicado.
+
+Clave secreta de encriptación: Indicaremos la clave de encriptación
+que tiene el comercio.
+
+Número de terminal: Indicaremos el terminal del TPV.
+
+Tipo de firma: Seleccionaremos el tipo de firma del comercio.
+
+Tipo de moneda: Seleccionaremos la moneda de nuestro terminal TPV
+(Normalmente Euros).
+
+Tipo de transacción: Indicaremos el tipo de transacción, 0.
+
+Idiomas TPV: Indicaremos el idiomas en el TPV.
+
+URL_OK/URL_KO: durante el proceso del pago, y una vez que
+se muestra al cliente la pantalla con el resultado del mismo, es
+posible redirigir su navegador a una URL para las transacciones
+autorizadas y a otra si la transacción ha sido denegada. A estas
+se las denomina URL_OK y URL_KO, respectivamente. Se trata
+de dos URL que pueden ser proporcionadas por el comercio.
+
+
+
+Requirements
+------------
+
+Odoo v8.0
+
+
+Note
+----
+
+Se tiene que verificar la configuración del comercio en el
+módulo de administración de Redsys, donde la opción “Parámetros en las
+URLs” debe tener el valor “SI”.

payment_redsys/__init__.py

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+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    Copyright (C) 2013-Today OpenERP SA (<http://www.openerp.com>).
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+from . import models
+from . import controllers

payment_redsys/__openerp__.py

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+# -*- coding: utf-8 -*-
+
+{
+    'name': 'Redsys Payment Acquirer',
+    'category': 'Hidden',
+    'summary': 'Payment Acquirer: Redsys Implementation',
+    'version': '1.0',
+    'author': 'Incaser Informatica S.L.',
+    'depends': ['payment'],
+    'data': [
+        'views/redsys.xml',
+        'views/payment_acquirer.xml',
+        'data/redsys.xml',
+    ],
+    'installable': True,
+}

payment_redsys/controllers/__init__.py

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+# -*- coding: utf-8 -*-
+
+from . import main

payment_redsys/controllers/main.py

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+# -*- coding: utf-8 -*-
+import logging
+import pprint
+import werkzeug
+
+from openerp import http, SUPERUSER_ID
+from openerp.http import request
+
+_logger = logging.getLogger(__name__)
+
+
+class RedsysController(http.Controller):
+    _return_url = '/payment/redsys/return'
+    _cancel_url = '/payment/redsys/cancel'
+    _exception_url = '/payment/redsys/error'
+    _reject_url = '/payment/redsys/reject'
+
+    @http.route([
+        '/payment/redsys/return',
+        '/payment/redsys/cancel',
+        '/payment/redsys/error',
+        '/payment/redsys/reject',
+    ], type='http', auth='none')
+    def redsys_return(self, **post):
+        """ Redsys."""
+        _logger.info('Redsys: entering form_feedback with post data %s',
+                     pprint.pformat(post))
+        if post:
+            request.registry['payment.transaction'].form_feedback(
+                request.cr, SUPERUSER_ID, post, 'redsys',
+                context=request.context)
+        return_url = post.pop('return_url', '')
+        if not return_url:
+            return_url = '/shop'
+        return werkzeug.utils.redirect(return_url)

payment_redsys/data/redsys.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<openerp>
+    <data noupdate="1">
+
+        <record id="payment_acquirer_redsys" model="payment.acquirer">
+            <field name="name">Credit Card Redsys</field>
+            <field name="provider">redsys</field>
+            <field name="company_id" ref="base.main_company"/>
+            <field name="view_template_id" ref="redsys_acquirer_button"/>
+            <field name="environment">test</field>
+            <field name="pre_msg"><![CDATA[
+				<p>You will be redirected to the redsys website after cliking on the payment button.</p>]]>
+			</field>
+        </record>
+
+    </data>
+</openerp>

payment_redsys/models/__init__.py

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+# -*- coding: utf-8 -*-
+
+from . import redsys

payment_redsys/models/redsys.py

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+# -*- coding: utf-8 -*-
+from hashlib import sha1
+import logging
+import urlparse
+
+from openerp import models, fields, api, _
+from openerp.addons.payment.models.payment_acquirer import ValidationError
+from openerp.tools.float_utils import float_compare
+from datetime import datetime
+_logger = logging.getLogger(__name__)
+
+
+class AcquirerRedsys(models.Model):
+    _inherit = 'payment.acquirer'
+
+    def _get_redsys_urls(self, environment):
+        """ Redsys URLs
+        """
+        if environment == 'prod':
+            return {
+                'redsys_form_url':
+                'https://sis.redsys.es/sis/realizarPago/',
+            }
+        else:
+            return {
+                'redsys_form_url':
+                'https://sis-t.redsys.es:25443/sis/realizarPago/',
+            }
+
+    @api.model
+    def _get_providers(self):
+        providers = super(AcquirerRedsys, self)._get_providers()
+        providers.append(['redsys', 'Redsys'])
+        return providers
+
+    redsys_merchant_url = fields.Char('Merchant URL',
+                                      required_if_provider='redsys')
+    redsys_merchant_name = fields.Char('Merchant Name',
+                                       required_if_provider='redsys')
+    redsys_merchant_titular = fields.Char('Merchant Titular',
+                                          required_if_provider='redsys')
+    redsys_merchant_code = fields.Char('Merchant code',
+                                       required_if_provider='redsys')
+    redsys_merchant_description = fields.Char('Product Description',
+                                              required_if_provider='redsys')
+    redsys_secret_key = fields.Char('Secret Key',
+                                    required_if_provider='redsys')
+    redsys_terminal = fields.Char('Terminal', default='1',
+                                  required_if_provider='redsys')
+    redsys_currency = fields.Char('Currency', default='978',
+                                  required_if_provider='redsys')
+    redsys_transaction_type = fields.Char('Transtaction Type', default='0',
+                                          required_if_provider='redsys')
+    redsys_merchant_data = fields.Char('Merchant Data')
+    redsys_merchant_lang = fields.Selection([('001', 'Castellano'),
+                                             ('004', 'Frances'),
+                                             ], 'Merchant Consumer Language')
+    redsys_pay_method = fields.Selection([('T', 'Pago con Tarjeta'),
+                                          ('R', 'Pago por Transferencia'),
+                                          ('D', 'Domiciliacion'),
+                                          ], 'Payment Method',
+                                         default='T')
+    redsys_url_ok = fields.Char('URL OK')
+    redsys_url_ko = fields.Char('URL KO')
+
+    def _redsys_generate_digital_sign(self, acquirer, inout, values):
+        """ Generate the shasign for incoming or outgoing communications.
+        :param browse acquirer: the payment.acquirer browse record. It should
+                                have a shakey in shaky out
+        :param string inout: 'in' (encoding) or 'out' (decoding).
+        :param dict values: transaction values
+
+        :return string: shasign
+        """
+        assert acquirer.provider == 'redsys'
+
+        def get_value(key):
+            if values.get(key):
+                return values[key]
+            return ''
+
+        if inout == 'out':
+            keys = ['Ds_Amount',
+                    'Ds_Order',
+                    'Ds_MerchantCode',
+                    'Ds_Currency',
+                    'Ds_Response']
+        else:
+            keys = ['Ds_Merchant_Amount',
+                    'Ds_Merchant_Order',
+                    'Ds_Merchant_MerchantCode',
+                    'Ds_Merchant_Currency',
+                    'Ds_Merchant_TransactionType',
+                    'Ds_Merchant_MerchantURL']
+        sign = ''.join('%s' % (get_value(k)) for k in keys)
+        # Add the pre-shared secret key at the end of the signature
+        sign = sign + acquirer.redsys_secret_key
+        if isinstance(sign, str):
+            sign = urlparse.parse_qsl(sign)
+        shasign = sha1(sign).hexdigest().upper()
+        return shasign
+
+    @api.model
+    def redsys_form_generate_values(self, id, partner_values, tx_values):
+        acquirer = self.browse(id)
+        tx_values['reference'] += datetime.now().strftime('%M%S')
+        redsys_tx_values = dict(tx_values)
+        redsys_tx_values.update({
+            'Ds_Sermepa_Url':
+                (self._get_redsys_urls(acquirer.environment)
+                    ['redsys_form_url']),
+            'Ds_Merchant_Amount': int(tx_values['amount'] * 100),
+            'Ds_Merchant_Currency': acquirer.redsys_currency or '978',
+            'Ds_Merchant_Order': tx_values['reference'][:12],
+            'Ds_Merchant_MerchantCode': acquirer.redsys_merchant_code and
+                acquirer.redsys_merchant_code[:9],
+            'Ds_Merchant_Terminal': acquirer.redsys_terminal or '1',
+            'Ds_Merchant_TransactionType': (
+                acquirer.redsys_transaction_type or '0'),
+            'Ds_Merchant_Titular': acquirer.redsys_merchant_titular[:60] and
+                acquirer.redsys_merchant_titular[:60],
+            'Ds_Merchant_MerchantName': acquirer.redsys_merchant_name and
+                acquirer.redsys_merchant_name[:25],
+            'Ds_Merchant_MerchantURL':
+                (acquirer.redsys_merchant_url
+                 and acquirer.redsys_merchant_url[:250] or ''),
+            'Ds_Merchant_MerchantData': acquirer.redsys_merchant_data or '',
+            'Ds_Merchant_ProductDescription': (
+                acquirer.redsys_merchant_description and
+                acquirer.redsys_merchant_description[:125]),
+            'Ds_Merchant_ConsumerLanguage': (
+                acquirer.redsys_merchant_lang or '001'),
+            'Ds_Merchant_UrlOK': acquirer.redsys_url_ok or '',
+            'Ds_Merchant_UrlKO': acquirer.redsys_url_ko or '',
+            'Ds_Merchant_PayMethods': acquirer.redsys_pay_method or 'T',
+        })
+
+        redsys_tx_values['Ds_Merchant_MerchantSignature'] = (
+            self._redsys_generate_digital_sign(
+                acquirer, 'in', redsys_tx_values))
+        return partner_values, redsys_tx_values
+
+    @api.multi
+    def redsys_get_form_action_url(self):
+        return self._get_redsys_urls(self.environment)['redsys_form_url']
+
+
+class TxRedsys(models.Model):
+    _inherit = 'payment.transaction'
+
+    redsys_txnid = fields.Char('Transaction ID')
+
+    # --------------------------------------------------
+    # FORM RELATED METHODS
+    # --------------------------------------------------
+
+    @api.model
+    def _redsys_form_get_tx_from_data(self, data):
+        """ Given a data dict coming from redsys, verify it and
+        find the related transaction record. """
+        reference = data.get('Ds_Order', '')[:-4]
+        pay_id = data.get('Ds_AuthorisationCode')
+        shasign = data.get('Ds_Signature')
+        if not reference or not pay_id or not shasign:
+            error_msg = 'Redsys: received data with missing reference' \
+                ' (%s) or pay_id (%s) or shashign (%s)' % (reference,
+                                                           pay_id, shasign)
+            _logger.error(error_msg)
+            raise ValidationError(error_msg)
+
+        tx = self.search([('reference', '=', reference)])
+        if not tx or len(tx) > 1:
+            error_msg = 'Redsys: received data for reference %s' % (reference)
+            if not tx:
+                error_msg += '; no order found'
+            else:
+                error_msg += '; multiple order found'
+            _logger.error(error_msg)
+            raise ValidationError(error_msg)
+
+        # verify shasign
+        acquirer = self.env['payment.acquirer']
+        shasign_check = acquirer._redsys_generate_digital_sign(
+            tx.acquirer_id, 'out', data)
+        if shasign_check.upper() != shasign.upper():
+            error_msg = 'Redsys: invalid shasign, received %s, computed %s,' \
+                ' for data %s' % (shasign, shasign_check, data)
+            _logger.error(error_msg)
+            raise ValidationError(error_msg)
+        return tx
+
+    @api.model
+    def _redsys_form_get_invalid_parameters(self, tx, data):
+        invalid_parameters = []
+
+        if (tx.acquirer_reference
+                and data.get('Ds_Order')) != tx.acquirer_reference:
+            invalid_parameters.append(
+                ('Transaction Id', data.get('Ds_Order'),
+                 tx.acquirer_reference))
+        # check what is buyed
+        if (float_compare(float(data.get('Ds_Amount', '0.0'))/100,
+                          tx.amount, 2) != 0):
+            invalid_parameters.append(('Amount', data.get('Ds_Amount'),
+                                      '%.2f' % tx.amount))
+        return invalid_parameters
+
+    @api.model
+    def _redsys_form_validate(self, tx, data):
+        status_code = int(data.get('Ds_Response', '29999'))
+        if (status_code >= 0) and (status_code <= 99):
+            tx.write({
+                'state': 'done',
+                'redsys_txnid': data.get('Ds_AuthorisationCode'),
+                'state_message': _('Ok: %s') % data.get('Ds_Response'),
+            })
+            return True
+        if (status_code >= 101) and (status_code <= 202):
+            # 'Payment error: code: %s.'
+            tx.write({
+                'state': 'pending',
+                'redsys_txnid': data.get('Ds_AuthorisationCode'),
+                'state_message': _('Error: %s') % data.get('Ds_Response'),
+            })
+            return True
+        if (status_code == 912) and (status_code == 9912):
+            # 'Payment error: bank unavailable.'
+            tx.write({
+                'state': 'cancel',
+                'redsys_txnid': data.get('Ds_AuthorisationCode'),
+                'state_message': (_('Bank Error: %s')
+                                  % data.get('Ds_Response')),
+            })
+            return True
+        else:
+            error = 'Redsys: feedback error'
+            _logger.info(error)
+            tx.write({
+                'state': 'error',
+                'redsys_txnid': data.get('Ds_AuthorisationCode'),
+                'state_message': error,
+            })
+            return False