241 lines
10 KiB
Python
241 lines
10 KiB
Python
# coding: utf-8
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import base64
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import json
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import binascii
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from collections import OrderedDict
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import hashlib
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import hmac
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import logging
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from itertools import chain
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from werkzeug import urls
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from flectra import api, fields, models, tools, _
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from flectra.addons.payment.models.payment_acquirer import ValidationError
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from flectra.addons.payment_adyen.controllers.main import AdyenController
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_logger = logging.getLogger(__name__)
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class AcquirerAdyen(models.Model):
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_inherit = 'payment.acquirer'
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provider = fields.Selection(selection_add=[('adyen', 'Adyen')])
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adyen_merchant_account = fields.Char('Merchant Account', required_if_provider='adyen', groups='base.group_user')
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adyen_skin_code = fields.Char('Skin Code', required_if_provider='adyen', groups='base.group_user')
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adyen_skin_hmac_key = fields.Char('Skin HMAC Key', required_if_provider='adyen', groups='base.group_user')
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@api.model
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def _get_adyen_urls(self, environment):
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""" Adyen URLs: yhpp: hosted payment page: pay.shtml for single, select.shtml for multiple """
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return {
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'adyen_form_url': 'https://%s.adyen.com/hpp/pay.shtml' % ('live' if environment == 'prod' else environment),
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}
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@api.multi
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def _adyen_generate_merchant_sig_sha256(self, inout, values):
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""" Generate the shasign for incoming or outgoing communications., when using the SHA-256
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signature.
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:param string inout: 'in' (flectra contacting ogone) or 'out' (adyen
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contacting flectra). In this last case only some
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fields should be contained (see e-Commerce basic)
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:param dict values: transaction values
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:return string: shasign
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"""
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def escapeVal(val):
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return val.replace('\\', '\\\\').replace(':', '\\:')
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def signParams(parms):
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signing_string = ':'.join(
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escapeVal(v)
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for v in chain(parms.keys(), parms.values())
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)
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hm = hmac.new(hmac_key, signing_string.encode('utf-8'), hashlib.sha256)
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return base64.b64encode(hm.digest())
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assert inout in ('in', 'out')
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assert self.provider == 'adyen'
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if inout == 'in':
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# All the fields sent to Adyen must be included in the signature. ALL the fucking
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# fields, despite what is claimed in the documentation. For example, in
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# https://docs.adyen.com/developers/hpp-manual, it is stated: "The resURL parameter does
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# not need to be included in the signature." It's a trap, it must be included as well!
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keys = [
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'merchantReference', 'paymentAmount', 'currencyCode', 'shipBeforeDate', 'skinCode',
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'merchantAccount', 'sessionValidity', 'merchantReturnData', 'shopperEmail',
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'shopperReference', 'allowedMethods', 'blockedMethods', 'offset',
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'shopperStatement', 'recurringContract', 'billingAddressType',
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'deliveryAddressType', 'brandCode', 'countryCode', 'shopperLocale', 'orderData',
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'offerEmail', 'resURL',
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]
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else:
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keys = [
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'authResult', 'merchantReference', 'merchantReturnData', 'paymentMethod',
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'pspReference', 'shopperLocale', 'skinCode',
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]
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hmac_key = binascii.a2b_hex(self.adyen_skin_hmac_key.encode('ascii'))
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raw_values = {k: values.get(k, '') for k in keys if k in values}
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raw_values_ordered = OrderedDict(sorted(raw_values.items(), key=lambda t: t[0]))
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return signParams(raw_values_ordered)
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@api.multi
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def _adyen_generate_merchant_sig(self, inout, values):
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""" Generate the shasign for incoming or outgoing communications, when using the SHA-1
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signature (deprecated by Adyen).
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:param string inout: 'in' (flectra contacting ogone) or 'out' (adyen
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contacting flectra). In this last case only some
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fields should be contained (see e-Commerce basic)
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:param dict values: transaction values
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:return string: shasign
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"""
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assert inout in ('in', 'out')
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assert self.provider == 'adyen'
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if inout == 'in':
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keys = "paymentAmount currencyCode shipBeforeDate merchantReference skinCode merchantAccount sessionValidity shopperEmail shopperReference recurringContract allowedMethods blockedMethods shopperStatement merchantReturnData billingAddressType deliveryAddressType offset".split()
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else:
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keys = "authResult pspReference merchantReference skinCode merchantReturnData".split()
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def get_value(key):
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if values.get(key):
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return values[key]
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return ''
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sign = ''.join('%s' % get_value(k) for k in keys).encode('ascii')
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key = self.adyen_skin_hmac_key.encode('ascii')
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return base64.b64encode(hmac.new(key, sign, hashlib.sha1).digest())
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@api.multi
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def adyen_form_generate_values(self, values):
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base_url = self.env['ir.config_parameter'].sudo().get_param('web.base.url')
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# tmp
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import datetime
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from dateutil import relativedelta
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if self.provider == 'adyen' and len(self.adyen_skin_hmac_key) == 64:
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tmp_date = datetime.datetime.today() + relativedelta.relativedelta(days=1)
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values.update({
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'merchantReference': values['reference'],
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'paymentAmount': '%d' % int(tools.float_round(values['amount'], 2) * 100),
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'currencyCode': values['currency'] and values['currency'].name or '',
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'shipBeforeDate': tmp_date.strftime('%Y-%m-%d'),
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'skinCode': self.adyen_skin_code,
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'merchantAccount': self.adyen_merchant_account,
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'shopperLocale': values.get('partner_lang', ''),
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'sessionValidity': tmp_date.isoformat('T')[:19] + "Z",
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'resURL': urls.url_join(base_url, AdyenController._return_url),
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'merchantReturnData': json.dumps({'return_url': '%s' % values.pop('return_url')}) if values.get('return_url', '') else False,
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'shopperEmail': values.get('partner_email', ''),
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})
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values['merchantSig'] = self._adyen_generate_merchant_sig_sha256('in', values)
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else:
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tmp_date = datetime.date.today() + relativedelta.relativedelta(days=1)
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values.update({
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'merchantReference': values['reference'],
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'paymentAmount': '%d' % int(tools.float_round(values['amount'], 2) * 100),
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'currencyCode': values['currency'] and values['currency'].name or '',
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'shipBeforeDate': tmp_date,
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'skinCode': self.adyen_skin_code,
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'merchantAccount': self.adyen_merchant_account,
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'shopperLocale': values.get('partner_lang'),
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'sessionValidity': tmp_date,
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'resURL': urls.url_join(base_url, AdyenController._return_url),
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'merchantReturnData': json.dumps({'return_url': '%s' % values.pop('return_url')}) if values.get('return_url') else False,
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})
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values['merchantSig'] = self._adyen_generate_merchant_sig('in', values)
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return values
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@api.multi
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def adyen_get_form_action_url(self):
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return self._get_adyen_urls(self.environment)['adyen_form_url']
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class TxAdyen(models.Model):
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_inherit = 'payment.transaction'
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# --------------------------------------------------
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# FORM RELATED METHODS
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# --------------------------------------------------
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@api.model
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def _adyen_form_get_tx_from_data(self, data):
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reference, pspReference = data.get('merchantReference'), data.get('pspReference')
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if not reference or not pspReference:
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error_msg = _('Adyen: received data with missing reference (%s) or missing pspReference (%s)') % (reference, pspReference)
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_logger.info(error_msg)
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raise ValidationError(error_msg)
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# find tx -> @TDENOTE use pspReference ?
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tx = self.env['payment.transaction'].search([('reference', '=', reference)])
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if not tx or len(tx) > 1:
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error_msg = _('Adyen: received data for reference %s') % (reference)
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if not tx:
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error_msg += _('; no order found')
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else:
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error_msg += _('; multiple order found')
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_logger.info(error_msg)
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raise ValidationError(error_msg)
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# verify shasign
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if len(tx.acquirer_id.adyen_skin_hmac_key) == 64:
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shasign_check = tx.acquirer_id._adyen_generate_merchant_sig_sha256('out', data)
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else:
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shasign_check = tx.acquirer_id._adyen_generate_merchant_sig('out', data)
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if shasign_check != data.get('merchantSig'):
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error_msg = _('Adyen: invalid merchantSig, received %s, computed %s') % (data.get('merchantSig'), shasign_check)
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_logger.warning(error_msg)
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raise ValidationError(error_msg)
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return tx
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def _adyen_form_get_invalid_parameters(self, data):
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invalid_parameters = []
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# reference at acquirer: pspReference
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if self.acquirer_reference and data.get('pspReference') != self.acquirer_reference:
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invalid_parameters.append(('pspReference', data.get('pspReference'), self.acquirer_reference))
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# seller
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if data.get('skinCode') != self.acquirer_id.adyen_skin_code:
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invalid_parameters.append(('skinCode', data.get('skinCode'), self.acquirer_id.adyen_skin_code))
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# result
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if not data.get('authResult'):
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invalid_parameters.append(('authResult', data.get('authResult'), 'something'))
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return invalid_parameters
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def _adyen_form_validate(self, data):
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status = data.get('authResult', 'PENDING')
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if status == 'AUTHORISED':
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self.write({
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'state': 'done',
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'acquirer_reference': data.get('pspReference'),
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# 'date_validate': data.get('payment_date', fields.datetime.now()),
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# 'paypal_txn_type': data.get('express_checkout')
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})
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return True
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elif status == 'PENDING':
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self.write({
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'state': 'pending',
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'acquirer_reference': data.get('pspReference'),
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})
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return True
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else:
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error = _('Adyen: feedback error')
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_logger.info(error)
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self.write({
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'state': 'error',
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'state_message': error
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})
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return False
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