98 lines
3.3 KiB
Python
Executable File
98 lines
3.3 KiB
Python
Executable File
# This file is part of Tryton. The COPYRIGHT file at the top level of
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# this repository contains the full copyright notices and license terms.
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from decimal import Decimal
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from lxml import objectify
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from zeep import Client, Transport
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from zeep.exceptions import Error
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from trytond.cache import Cache
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from trytond.config import config
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from trytond.model import fields
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from trytond.modules.currency.currency import CronFetchError
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from trytond.pool import PoolMeta
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from trytond.pyson import Eval, If
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URL = (
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'https://webservices.nbs.rs/CommunicationOfficeService1_0/'
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'ExchangeRateXmlService.asmx?WSDL')
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TIMEOUT = config.getfloat('currency_rs', 'requests_timeout', default=300)
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def get_client(username, password, license_id):
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client = Client(URL, transport=Transport(operation_timeout=TIMEOUT))
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client.set_default_soapheaders({
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'AuthenticationHeader': {
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'UserName': username,
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'Password': password,
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'LicenceID': license_id,
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},
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})
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return client
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class Cron(metaclass=PoolMeta):
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__name__ = 'currency.cron'
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_states = {
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'required': Eval('source') == 'nbs_rs',
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'invisible': Eval('source') != 'nbs_rs',
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}
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rs_username = fields.Char("Username", states=_states, strip=False)
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rs_password = fields.Char("Password", states=_states, strip=False)
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rs_license_id = fields.Char("License ID", states=_states, strip=False)
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rs_list_type = fields.Selection(
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'get_rs_list_types', "List Type", states=_states)
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_rs_list_types = Cache(__name__ + '.get_rs_list_types', context=False)
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del _states
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@classmethod
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def __setup__(cls):
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super().__setup__()
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cls.source.selection.append(('nbs_rs', "Serbian National Bank"))
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cls.currency.domain = [
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cls.currency.domain or [],
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If(Eval('source') == 'nbs_rs',
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('code', '=', 'RSD'),
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()),
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]
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@fields.depends('rs_username', 'rs_password', 'rs_license_id')
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def _rs_client(self):
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return get_client(
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self.rs_username, self.rs_password, self.rs_license_id)
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@fields.depends('rs_list_type', methods=['_rs_client'])
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def get_rs_list_types(self):
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types = self._rs_list_types.get(None)
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if types is not None:
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return types
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try:
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client = self._rs_client()
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response = client.service.GetExchangeRateListType()
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except Error:
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return [(self.rs_list_type, self.rs_list_type or "")]
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types = []
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data = objectify.fromstring(response)
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for list_type in data.iterchildren():
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types.append(
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(str(list_type.ExchangeRateListTypeID), str(list_type.Name)))
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self._rs_list_types.set(None, types)
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return types
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def fetch_nbs_rs(self, date):
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try:
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client = self._rs_client()
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response = client.service.GetExchangeRateByDate(
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date.strftime('%Y%m%d'), self.rs_list_type)
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except Error as e:
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raise CronFetchError() from e
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data = objectify.fromstring(response)
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return {
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r.CurrencyCodeAlfaChar: (
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Decimal(r.Unit.text) / Decimal(r.MiddleRate.text))
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for r in data.iterchildren()
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if r.Date == date.strftime('%d.%m.%Y')}
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