odoo_account_ebics/account_ebics/models/ebics_userid.py
2020-09-11 11:08:08 +02:00

448 lines
16 KiB
Python

# Copyright 2009-2020 Noviat.
# License LGPL-3 or later (http://www.gnu.org/licenses/lpgl).
import base64
import logging
import os
from sys import exc_info
from traceback import format_exception
from urllib.error import URLError
from odoo import _, api, fields, models
from odoo.exceptions import UserError
_logger = logging.getLogger(__name__)
"""
logging.basicConfig(
level=logging.DEBUG,
format='[%(asctime)s] %(levelname)s - %(name)s: %(message)s')
"""
try:
import fintech
from fintech.ebics import EbicsKeyRing, EbicsBank, EbicsUser,\
EbicsClient, EbicsFunctionalError, EbicsTechnicalError
fintech.cryptolib = 'cryptography'
except ImportError:
_logger.warning('Failed to import fintech')
class EbicsBank(EbicsBank):
def _next_order_id(self, partnerid):
"""
EBICS protocol version H003 requires generation of the OrderID.
The OrderID must be a string between 'A000' and 'ZZZZ' and
unique for each partner id.
"""
return hasattr(self, '_order_number') and self._order_number or 'A000'
class EbicsUserID(models.Model):
_name = 'ebics.userid'
_description = 'EBICS UserID'
_order = 'name'
name = fields.Char(
string='EBICS UserID', required=True,
readonly=True, states={'draft': [('readonly', False)]},
help="Human users or a technical system that is/are "
"assigned to a customer. "
"\nOn the EBICS bank server it is identified "
"by the combination of UserID and PartnerID. "
"The technical subscriber serves only for the data exchange "
"between customer and financial institution. "
"The human user also can authorise orders.")
ebics_config_id = fields.Many2one(
comodel_name='ebics.config',
string='EBICS Configuration',
ondelete='cascade')
user_ids = fields.Many2many(
comodel_name='res.users',
string='Users',
required=True,
help="Users who are allowed to use this EBICS UserID for "
" bank transactions.")
# Currently only a singe signature class per user is supported
# Classes A and B are not yet supported.
signature_class = fields.Selection(
selection=[('E', 'Single signature'),
('T', 'Transport signature')],
string='Signature Class',
required=True, default='T',
readonly=True, states={'draft': [('readonly', False)]},
help="Default signature class."
"This default can be overriden for specific "
"EBICS transactions (cf. File Formats).")
ebics_keys_fn = fields.Char(
compute='_compute_ebics_keys_fn')
ebics_keys_found = fields.Boolean(
compute='_compute_ebics_keys_found')
ebics_passphrase = fields.Char(
string='EBICS Passphrase')
ebics_ini_letter = fields.Binary(
string='EBICS INI Letter', readonly=True,
help="INI-letter PDF document to be sent to your bank.")
ebics_ini_letter_fn = fields.Char(
string='INI-letter Filename', readonly=True)
ebics_public_bank_keys = fields.Binary(
string='EBICS Public Bank Keys', readonly=True,
help="EBICS Public Bank Keys to be checked for consistency.")
ebics_public_bank_keys_fn = fields.Char(
string='EBICS Public Bank Keys Filename', readonly=True)
swift_3skey = fields.Boolean(
string='Enable 3SKey support',
help="Transactions for this user will be signed "
"by means of the SWIFT 3SKey token.")
swift_3skey_certificate = fields.Binary(
string='3SKey Certficate')
swift_3skey_certificate_fn = fields.Char(
string='EBICS Public Bank Keys Filename')
# X.509 Distinguished Name attributes used to
# create self-signed X.509 certificates
ebics_key_x509 = fields.Boolean(
string='X509 support',
help="Set this flag in order to work with "
"self-signed X.509 certificates")
ebics_key_x509_dn_cn = fields.Char(
string='Common Name [CN]',
readonly=True, states={'draft': [('readonly', False)]},
)
ebics_key_x509_dn_o = fields.Char(
string='Organization Name [O]',
readonly=True, states={'draft': [('readonly', False)]},
)
ebics_key_x509_dn_ou = fields.Char(
string='Organizational Unit Name [OU]',
readonly=True, states={'draft': [('readonly', False)]},
)
ebics_key_x509_dn_c = fields.Char(
string='Country Name [C]',
readonly=True, states={'draft': [('readonly', False)]},
)
ebics_key_x509_dn_st = fields.Char(
string='State Or Province Name [ST]',
readonly=True, states={'draft': [('readonly', False)]},
)
ebics_key_x509_dn_l = fields.Char(
string='Locality Name [L]',
readonly=True, states={'draft': [('readonly', False)]},
)
ebics_key_x509_dn_e = fields.Char(
string='Email Address',
readonly=True, states={'draft': [('readonly', False)]},
)
state = fields.Selection(
[('draft', 'Draft'),
('init', 'Initialisation'),
('get_bank_keys', 'Get Keys from Bank'),
('to_verify', 'Verification'),
('active_keys', 'Active Keys')],
string='State',
default='draft',
required=True, readonly=True)
active = fields.Boolean(
string='Active', default=True)
company_ids = fields.Many2many(
comodel_name='res.company',
string='Companies',
required=True,
help="Companies sharing this EBICS contract.")
@api.depends('name')
def _compute_ebics_keys_fn(self):
for rec in self:
keys_dir = rec.ebics_config_id.ebics_keys
rec.ebics_keys_fn = (
rec.name
and keys_dir
and (keys_dir + '/' + rec.name + '_keys'))
@api.depends('ebics_keys_fn')
def _compute_ebics_keys_found(self):
for rec in self:
rec.ebics_keys_found = (
rec.ebics_keys_fn
and os.path.isfile(rec.ebics_keys_fn)
)
@api.constrains('ebics_passphrase')
def _check_ebics_passphrase(self):
for rec in self:
if not rec.ebics_passphrase or len(rec.ebics_passphrase) < 8:
raise UserError(_(
"The passphrase must be at least 8 characters long"))
@api.onchange('signature_class')
def _onchange_signature_class(self):
if self.signature_class == 'T':
self.swift_3skey = False
@api.onchange('swift_3skey')
def _onchange_swift_3skey(self):
if self.swift_3skey:
self.ebics_key_x509 = True
def set_to_draft(self):
return self.write({'state': 'draft'})
def set_to_active_keys(self):
return self.write({'state': 'active_keys'})
def set_to_get_bank_keys(self):
return self.write({'state': 'get_bank_keys'})
def ebics_init_1(self):
"""
Initialization of bank keys - Step 1:
Create new keys and certificates for this user
"""
self.ensure_one()
self.ebics_config_id._check_ebics_files()
if self.state != 'draft':
raise UserError(
_("Set state to 'draft' before Bank Key (re)initialisation."))
if not self.ebics_passphrase:
raise UserError(
_("Set a passphrase."))
if self.swift_3skey and not self.swift_3skey_certificate:
raise UserError(
_("3SKey certificate missing."))
ebics_version = self.ebics_config_id.ebics_version
try:
keyring = EbicsKeyRing(
keys=self.ebics_keys_fn,
passphrase=self.ebics_passphrase)
bank = EbicsBank(
keyring=keyring,
hostid=self.ebics_config_id.ebics_host,
url=self.ebics_config_id.ebics_url)
user = EbicsUser(
keyring=keyring,
partnerid=self.ebics_config_id.ebics_partner,
userid=self.name)
except Exception:
exctype, value = exc_info()[:2]
error = _("EBICS Initialisation Error:")
error += '\n' + str(exctype) + '\n' + str(value)
raise UserError(error)
self.ebics_config_id._check_ebics_keys()
if not os.path.isfile(self.ebics_keys_fn):
try:
# TODO:
# enable import of all type of certicates: A00x, X002, E002
if self.swift_3skey:
kwargs = {
self.ebics_config_id.ebics_key_version:
base64.decodestring(self.swift_3skey_certificate),
}
user.import_certificates(**kwargs)
user.create_keys(
keyversion=self.ebics_config_id.ebics_key_version,
bitlength=self.ebics_config_id.ebics_key_bitlength)
except Exception:
exctype, value = exc_info()[:2]
error = _("EBICS Initialisation Error:")
error += '\n' + str(exctype) + '\n' + str(value)
raise UserError(error)
if self.swift_3skey and not self.ebics_key_x509:
raise UserError(_(
"The current version of this module "
"requires to X509 support when enabling 3SKey"))
if self.ebics_key_x509:
dn_attrs = {
'commonName': self.ebics_key_x509_dn_cn,
'organizationName': self.ebics_key_x509_dn_o,
'organizationalUnitName': self.ebics_key_x509_dn_ou,
'countryName': self.ebics_key_x509_dn_c,
'stateOrProvinceName': self.ebics_key_x509_dn_st,
'localityName': self.ebics_key_x509_dn_l,
'emailAddress': self.ebics_key_x509_dn_e,
}
kwargs = {k: v for k, v in dn_attrs.items() if v}
user.create_certificates(**kwargs)
client = EbicsClient(
bank, user, version=ebics_version)
# Send the public electronic signature key to the bank.
ebics_config_bank = self.ebics_config_id.journal_ids[0].bank_id
if not ebics_config_bank:
raise UserError(_(
"No bank defined for the financial journal "
"of the EBICS Config"))
try:
supported_versions = client.HEV()
if ebics_version not in supported_versions:
err_msg = _("EBICS version mismatch.") + "\n"
err_msg += _("Versions supported by your bank:")
for k in supported_versions:
err_msg += "\n%s: %s " % (k, supported_versions[k])
raise UserError(err_msg)
if ebics_version == 'H003':
bank._order_number = self.ebics_config_id._get_order_number()
OrderID = client.INI()
_logger.info(
'%s, EBICS INI command, OrderID=%s', self._name, OrderID)
if ebics_version == 'H003':
self.ebics_config_id._update_order_number(OrderID)
except URLError:
exctype, value = exc_info()[:2]
tb = "".join(format_exception(*exc_info()))
_logger.error(
"EBICS INI command error\nUserID: %s\n%s",
self.name,
tb,
)
raise UserError(_(
"urlopen error:\n url '%s' - %s")
% (self.ebics_config_id.ebics_url, str(value)))
except EbicsFunctionalError:
e = exc_info()
error = _("EBICS Functional Error:")
error += '\n'
error += '%s (code: %s)' % (e[1].message, e[1].code)
raise UserError(error)
except EbicsTechnicalError:
e = exc_info()
error = _("EBICS Technical Error:")
error += '\n'
error += '%s (code: %s)' % (e[1].message, e[1].code)
raise UserError(error)
# Send the public authentication and encryption keys to the bank.
if ebics_version == 'H003':
bank._order_number = self.ebics_config_id._get_order_number()
OrderID = client.HIA()
_logger.info('%s, EBICS HIA command, OrderID=%s', self._name, OrderID)
if ebics_version == 'H003':
self.ebics_config_id._update_order_number(OrderID)
# Create an INI-letter which must be printed and sent to the bank.
ebics_config_bank = self.ebics_config_id.journal_ids[0].bank_id
cc = ebics_config_bank.country.code
if cc in ['FR', 'DE']:
lang = cc
else:
lang = self.env.user.lang or \
self.env['res.lang'].search([])[0].code
lang = lang[:2]
tmp_dir = os.path.normpath(self.ebics_config_id.ebics_files + '/tmp')
if not os.path.isdir(tmp_dir):
os.makedirs(tmp_dir, mode=0o700)
fn_date = fields.Date.today().isoformat()
fn = '_'.join(
[self.ebics_config_id.ebics_host, 'ini_letter', fn_date]) + '.pdf'
full_tmp_fn = os.path.normpath(tmp_dir + '/' + fn)
user.create_ini_letter(
bankname=ebics_config_bank.name,
path=full_tmp_fn,
lang=lang)
with open(full_tmp_fn, 'rb') as f:
letter = f.read()
self.write({
'ebics_ini_letter': base64.encodestring(letter),
'ebics_ini_letter_fn': fn,
})
return self.write({'state': 'init'})
def ebics_init_2(self):
"""
Initialization of bank keys - Step 2:
Activation of the account by the bank.
"""
if self.state != 'init':
raise UserError(
_("Set state to 'Initialisation'."))
self.ensure_one()
return self.write({'state': 'get_bank_keys'})
def ebics_init_3(self):
"""
Initialization of bank keys - Step 3:
After the account has been activated the public bank keys
must be downloaded and checked for consistency.
"""
self.ensure_one()
self.ebics_config_id._check_ebics_files()
if self.state != 'get_bank_keys':
raise UserError(
_("Set state to 'Get Keys from Bank'."))
keyring = EbicsKeyRing(
keys=self.ebics_keys_fn, passphrase=self.ebics_passphrase)
bank = EbicsBank(
keyring=keyring,
hostid=self.ebics_config_id.ebics_host,
url=self.ebics_config_id.ebics_url)
user = EbicsUser(
keyring=keyring,
partnerid=self.ebics_config_id.ebics_partner,
userid=self.name)
client = EbicsClient(
bank, user, version=self.ebics_config_id.ebics_version)
public_bank_keys = client.HPB()
public_bank_keys = public_bank_keys.encode()
tmp_dir = os.path.normpath(self.ebics_config_id.ebics_files + '/tmp')
if not os.path.isdir(tmp_dir):
os.makedirs(tmp_dir, mode=0o700)
fn_date = fields.Date.today().isoformat()
fn = '_'.join(
[self.ebics_config_id.ebics_host, 'public_bank_keys', fn_date]
) + '.txt'
self.write({
'ebics_public_bank_keys': base64.encodestring(public_bank_keys),
'ebics_public_bank_keys_fn': fn,
'state': 'to_verify',
})
return True
def ebics_init_4(self):
"""
Initialization of bank keys - Step 2:
Confirm Verification of the public bank keys
and activate the bank keyu.
"""
self.ensure_one()
if self.state != 'to_verify':
raise UserError(
_("Set state to 'Verification'."))
keyring = EbicsKeyRing(
keys=self.ebics_keys_fn, passphrase=self.ebics_passphrase)
bank = EbicsBank(
keyring=keyring,
hostid=self.ebics_config_id.ebics_host,
url=self.ebics_config_id.ebics_url)
bank.activate_keys()
return self.write({'state': 'active_keys'})
def change_passphrase(self):
self.ensure_one()
ctx = dict(self._context, default_ebics_userid_id=self.id)
module = __name__.split('addons.')[1].split('.')[0]
view = self.env.ref(
'%s.ebics_change_passphrase_view_form' % module)
return {
'name': _('EBICS keys change passphrase'),
'view_type': 'form',
'view_mode': 'form',
'res_model': 'ebics.change.passphrase',
'view_id': view.id,
'target': 'new',
'context': ctx,
'type': 'ir.actions.act_window',
}