100 lines
4.9 KiB
Python
100 lines
4.9 KiB
Python
import re
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from odoo import models, fields, _
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from odoo.exceptions import UserError
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from cryptography.hazmat.backends import default_backend
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from cryptography.hazmat.primitives import serialization
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from cryptography.hazmat.primitives.asymmetric import ec
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class ResCompany(models.Model):
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_inherit = "res.company"
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def _l10n_sa_generate_private_key(self):
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"""
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Compute a private key for each company that will be used to generate certificate signing requests (CSR)
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in order to receive X509 certificates from the ZATCA APIs and sign EDI documents
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- public_exponent=65537 is a default value that should be used most of the time, as per the documentation
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of cryptography.
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- key_size=2048 is considered a reasonable default key size, as per the documentation of cryptography.
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See https://cryptography.io/en/latest/hazmat/primitives/asymmetric/ec/
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"""
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private_key = ec.generate_private_key(ec.SECP256K1(), default_backend())
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return private_key.private_bytes(
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encoding=serialization.Encoding.PEM,
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format=serialization.PrivateFormat.TraditionalOpenSSL,
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encryption_algorithm=serialization.NoEncryption())
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l10n_sa_private_key = fields.Binary("ZATCA Private key", attachment=False, groups="base.group_system", copy=False,
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help="The private key used to generate the CSR and obtain certificates",)
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l10n_sa_api_mode = fields.Selection(
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[('sandbox', 'Sandbox'), ('preprod', 'Simulation (Pre-Production)'), ('prod', 'Production')],
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help="Specifies which API the system should use", required=True,
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default='sandbox', copy=False)
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l10n_sa_edi_building_number = fields.Char(compute='_compute_address',
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inverse='_l10n_sa_edi_inverse_building_number')
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l10n_sa_edi_plot_identification = fields.Char(compute='_compute_address',
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inverse='_l10n_sa_edi_inverse_plot_identification')
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l10n_sa_additional_identification_scheme = fields.Selection(
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related='partner_id.l10n_sa_additional_identification_scheme', readonly=False)
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l10n_sa_additional_identification_number = fields.Char(
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related='partner_id.l10n_sa_additional_identification_number', readonly=False)
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def _get_company_root_delegated_field_names(self):
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return super()._get_company_root_delegated_field_names() + [
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'l10n_sa_api_mode',
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'l10n_sa_private_key',
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]
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def write(self, vals):
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for company in self:
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if 'l10n_sa_api_mode' in vals:
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if company.l10n_sa_api_mode == 'prod' and vals['l10n_sa_api_mode'] != 'prod':
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raise UserError(_("You cannot change the ZATCA Submission Mode once it has been set to Production"))
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journals = self.env['account.journal'].search(self.env['account.journal']._check_company_domain(company))
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journals._l10n_sa_reset_certificates()
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journals.l10n_sa_latest_submission_hash = False
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return super().write(vals)
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def _get_company_address_field_names(self):
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""" Override to add ZATCA specific address fields """
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return super()._get_company_address_field_names() + \
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['l10n_sa_edi_building_number', 'l10n_sa_edi_plot_identification']
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def _l10n_sa_edi_inverse_building_number(self):
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for company in self:
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company.partner_id.l10n_sa_edi_building_number = company.l10n_sa_edi_building_number
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def _l10n_sa_edi_inverse_plot_identification(self):
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for company in self:
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company.partner_id.l10n_sa_edi_plot_identification = company.l10n_sa_edi_plot_identification
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def _l10n_sa_get_csr_invoice_type(self):
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"""
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Return the Invoice Type flag used in the CSR. 4-digit numerical input using 0 & 1 mapped to “TSCZ” where:
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- 0: False/Not supported, 1: True/Supported
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- T: Tax Invoice (Standard), S: Simplified Invoice, C & Z will be used in the future and should
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always be 0
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For example: 1100 would mean the Solution will be generating Standard and Simplified invoices.
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We can assume Odoo-powered EGS solutions will always generate both Standard & Simplified invoices
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:return:
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"""
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return '1100'
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def _l10n_sa_check_organization_unit(self):
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"""
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Check company Organization Unit according to ZATCA specifications
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Standards:
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BR-KSA-39
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BR-KSA-40
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See https://zatca.gov.sa/ar/RulesRegulations/Taxes/Documents/20210528_ZATCA_Electronic_Invoice_XML_Implementation_Standard_vShared.pdf
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"""
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self.ensure_one()
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if not self.vat:
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return False
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return len(self.vat) == 15 and bool(re.match(r'^3\d{13}3$', self.vat))
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