82 lines
3.7 KiB
Python
82 lines
3.7 KiB
Python
# Part of Odoo. See LICENSE file for full copyright and licensing details.
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from hashlib import md5
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from odoo import api, fields, models
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from odoo.tools.float_utils import float_split, float_repr
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SUPPORTED_CURRENCIES = ('ARS', 'BRL', 'CLP', 'COP', 'MXN', 'PEN', 'USD')
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class PaymentProvider(models.Model):
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_inherit = 'payment.provider'
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code = fields.Selection(
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selection_add=[('payulatam', 'PayU Latam')], ondelete={'payulatam': 'set default'})
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payulatam_merchant_id = fields.Char(
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string="PayU Latam Merchant ID",
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help="The ID solely used to identify the account with PayULatam",
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required_if_provider='payulatam')
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payulatam_account_id = fields.Char(
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string="PayU Latam Account ID",
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help="The ID solely used to identify the country-dependent shop with PayULatam",
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required_if_provider='payulatam')
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payulatam_api_key = fields.Char(
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string="PayU Latam API Key", required_if_provider='payulatam',
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groups='base.group_system')
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@api.model
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def _get_compatible_providers(self, *args, currency_id=None, **kwargs):
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""" Override of payment to unlist PayU Latam providers for unsupported currencies. """
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providers = super()._get_compatible_providers(*args, currency_id=currency_id, **kwargs)
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currency = self.env['res.currency'].browse(currency_id).exists()
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if currency and currency.name not in SUPPORTED_CURRENCIES:
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providers = providers.filtered(lambda p: p.code != 'payulatam')
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return providers
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def _payulatam_generate_sign(self, values, incoming=True):
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""" Generate the signature for incoming or outgoing communications.
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:param dict values: The values used to generate the signature
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:param bool incoming: Whether the signature must be generated for an incoming (PayU Latam to
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Odoo) or outgoing (Odoo to PayU Latam) communication.
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:return: The signature
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:rtype: str
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"""
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if incoming:
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# "Confirmation" and "Response" pages have a different way to calculate what they call the `new_value`
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if self.env.context.get('payulatam_is_confirmation_page'):
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# https://developers.payulatam.com/latam/en/docs/integrations/webcheckout-integration/confirmation-page.html#signature-validation
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# For confirmation page, PayU Latam round to the first digit if the second one is a zero
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# to generate their signature.
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# e.g:
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# 150.00 -> 150.0
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# 150.26 -> 150.26
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# This happens to be Python 3's default behavior when casting to `float`.
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new_value = "%d.%d" % float_split(float(values.get('TX_VALUE')), 2)
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else:
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# https://developers.payulatam.com/latam/en/docs/integrations/webcheckout-integration/response-page.html#signature-validation
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# PayU Latam use the "Round half to even" rounding method
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# to generate their signature. This happens to be Python 3's
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# default rounding method.
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new_value = float_repr(float(values.get('TX_VALUE')), 1)
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data_string = '~'.join([
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self.payulatam_api_key,
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self.payulatam_merchant_id,
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values['referenceCode'],
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new_value,
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values['currency'],
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values.get('transactionState'),
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])
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else:
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data_string = '~'.join([
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self.payulatam_api_key,
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self.payulatam_merchant_id,
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values['referenceCode'],
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float_repr(float(values['amount']), 2),
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values['currency'],
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])
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return md5(data_string.encode('utf-8')).hexdigest()
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