You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
276 lines
11 KiB
276 lines
11 KiB
# -*- coding: utf-8 -*-
|
|
"""Class to parse camt files."""
|
|
##############################################################################
|
|
#
|
|
# Copyright (C) 2013-2015 Therp BV <http://therp.nl>
|
|
# Copyright 2017 Open Net Sàrl
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Affero General Public License as published
|
|
# by the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Affero General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Affero General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
##############################################################################
|
|
|
|
import re
|
|
from datetime import datetime
|
|
from lxml import etree
|
|
from openerp.addons.account_bank_statement_import.parserlib import (
|
|
BankStatement)
|
|
from copy import copy
|
|
|
|
|
|
class CamtParser(object):
|
|
"""Parser for camt bank statement import files."""
|
|
|
|
def parse_amount(self, ns, node):
|
|
"""Parse element that contains Amount and CreditDebitIndicator."""
|
|
if node is None:
|
|
return 0.0
|
|
sign = 1
|
|
amount = 0.0
|
|
sign_node = node.xpath('ns:CdtDbtInd', namespaces={'ns': ns})
|
|
if sign_node and sign_node[0].text == 'DBIT':
|
|
sign = -1
|
|
amount_node = node.xpath('ns:Amt', namespaces={'ns': ns})
|
|
if amount_node:
|
|
amount = sign * float(amount_node[0].text)
|
|
return amount
|
|
|
|
def add_value_from_node(
|
|
self, ns, node, xpath_str, obj, attr_name, join_str=None):
|
|
"""Add value to object from first or all nodes found with xpath.
|
|
|
|
If xpath_str is a list (or iterable), it will be seen as a series
|
|
of search path's in order of preference. The first item that results
|
|
in a found node will be used to set a value."""
|
|
if not isinstance(xpath_str, (list, tuple)):
|
|
xpath_str = [xpath_str]
|
|
for search_str in xpath_str:
|
|
found_node = node.xpath(search_str, namespaces={'ns': ns})
|
|
if found_node:
|
|
if join_str is None:
|
|
attr_value = found_node[0].text
|
|
else:
|
|
attr_value = join_str.join([x.text for x in found_node])
|
|
setattr(obj, attr_name, attr_value)
|
|
break
|
|
|
|
def parse_transaction_details(self, ns, node, transaction):
|
|
"""Parse TxDtls node."""
|
|
# message
|
|
self.add_value_from_node(
|
|
ns, node, [
|
|
'./ns:RmtInf/ns:Ustrd',
|
|
'./ns:AddtlTxInf',
|
|
'./ns:AddtlNtryInf',
|
|
], transaction, 'message', join_str='\n')
|
|
# eref
|
|
self.add_value_from_node(
|
|
ns, node, [
|
|
'./ns:RmtInf/ns:Strd/ns:CdtrRefInf/ns:Ref',
|
|
'./ns:Refs/ns:EndToEndId',
|
|
],
|
|
transaction, 'eref'
|
|
)
|
|
amount = self.parse_amount(ns, node)
|
|
if amount != 0.0:
|
|
transaction['amount'] = amount
|
|
# remote party values
|
|
party_type = 'Dbtr'
|
|
party_type_node = node.xpath(
|
|
'../../ns:CdtDbtInd', namespaces={'ns': ns})
|
|
if party_type_node and party_type_node[0].text != 'CRDT':
|
|
party_type = 'Cdtr'
|
|
party_node = node.xpath(
|
|
'./ns:RltdPties/ns:%s' % party_type, namespaces={'ns': ns})
|
|
if party_node:
|
|
self.add_value_from_node(
|
|
ns, party_node[0], './ns:Nm', transaction, 'remote_owner')
|
|
self.add_value_from_node(
|
|
ns, party_node[0], './ns:PstlAdr/ns:Ctry', transaction,
|
|
'remote_owner_country'
|
|
)
|
|
address_node = party_node[0].xpath(
|
|
'./ns:PstlAdr/ns:AdrLine', namespaces={'ns': ns})
|
|
if address_node:
|
|
transaction.remote_owner_address = [address_node[0].text]
|
|
# Get remote_account from iban or from domestic account:
|
|
account_node = node.xpath(
|
|
'./ns:RltdPties/ns:%sAcct/ns:Id' % party_type,
|
|
namespaces={'ns': ns}
|
|
)
|
|
if account_node:
|
|
iban_node = account_node[0].xpath(
|
|
'./ns:IBAN', namespaces={'ns': ns})
|
|
if iban_node:
|
|
transaction.remote_account = iban_node[0].text
|
|
bic_node = node.xpath(
|
|
'./ns:RltdAgts/ns:%sAgt/ns:FinInstnId/ns:BIC' % party_type,
|
|
namespaces={'ns': ns}
|
|
)
|
|
if bic_node:
|
|
transaction.remote_bank_bic = bic_node[0].text
|
|
else:
|
|
self.add_value_from_node(
|
|
ns, account_node[0], './ns:Othr/ns:Id', transaction,
|
|
'remote_account'
|
|
)
|
|
|
|
def parse_entry(self, ns, node, transaction):
|
|
"""Parse an Ntry node and yield transactions."""
|
|
self.add_value_from_node(
|
|
ns, node, './ns:BkTxCd/ns:Prtry/ns:Cd', transaction,
|
|
'transfer_type'
|
|
)
|
|
self.add_value_from_node(
|
|
ns, node, './ns:BookgDt/ns:Dt', transaction, 'date')
|
|
self.add_value_from_node(
|
|
ns, node, './ns:BookgDt/ns:Dt', transaction, 'execution_date')
|
|
self.add_value_from_node(
|
|
ns, node, './ns:ValDt/ns:Dt', transaction, 'value_date')
|
|
amount = self.parse_amount(ns, node)
|
|
if amount != 0.0:
|
|
transaction['amount'] = amount
|
|
self.add_value_from_node(
|
|
ns, node, './ns:AddtlNtryInf', transaction, 'name')
|
|
self.add_value_from_node(
|
|
ns, node, [
|
|
'./ns:NtryDtls/ns:RmtInf/ns:Strd/ns:CdtrRefInf/ns:Ref',
|
|
'./ns:NtryDtls/ns:Btch/ns:PmtInfId',
|
|
],
|
|
transaction, 'ref'
|
|
)
|
|
details_nodes = node.xpath(
|
|
'./ns:NtryDtls/ns:TxDtls', namespaces={'ns': ns})
|
|
if len(details_nodes) == 0:
|
|
yield transaction
|
|
return
|
|
transaction_base = transaction
|
|
for i, dnode in enumerate(details_nodes):
|
|
transaction = copy(transaction_base)
|
|
self.parse_transaction_details(ns, dnode, transaction)
|
|
# transactions['data'] should be a synthetic xml snippet which
|
|
# contains only the TxDtls that's relevant.
|
|
data = copy(node)
|
|
for j, dnode in enumerate(data.xpath(
|
|
'./ns:NtryDtls/ns:TxDtls', namespaces={'ns': ns})):
|
|
if j != i:
|
|
dnode.getparent().remove(dnode)
|
|
transaction['data'] = etree.tostring(data)
|
|
yield transaction
|
|
|
|
def get_balance_amounts(self, ns, node):
|
|
"""Return opening and closing balance.
|
|
|
|
Depending on kind of balance and statement, the balance might be in a
|
|
different kind of node:
|
|
OPBD = OpeningBalance
|
|
PRCD = PreviousClosingBalance
|
|
ITBD = InterimBalance (first ITBD is start-, second is end-balance)
|
|
CLBD = ClosingBalance
|
|
"""
|
|
start_balance_node = None
|
|
end_balance_node = None
|
|
for node_name in ['OPBD', 'PRCD', 'CLBD', 'ITBD']:
|
|
code_expr = (
|
|
'./ns:Bal/ns:Tp/ns:CdOrPrtry/ns:Cd[text()="%s"]/../../..' %
|
|
node_name
|
|
)
|
|
balance_node = node.xpath(code_expr, namespaces={'ns': ns})
|
|
if balance_node:
|
|
if node_name in ['OPBD', 'PRCD']:
|
|
start_balance_node = balance_node[0]
|
|
elif node_name == 'CLBD':
|
|
end_balance_node = balance_node[0]
|
|
else:
|
|
if not start_balance_node:
|
|
start_balance_node = balance_node[0]
|
|
if not end_balance_node:
|
|
end_balance_node = balance_node[-1]
|
|
return (
|
|
self.parse_amount(ns, start_balance_node),
|
|
self.parse_amount(ns, end_balance_node)
|
|
)
|
|
|
|
def parse_statement(self, ns, node):
|
|
"""Parse a single Stmt node."""
|
|
statement = BankStatement()
|
|
self.add_value_from_node(
|
|
ns, node, [
|
|
'./ns:Acct/ns:Id/ns:IBAN',
|
|
'./ns:Acct/ns:Id/ns:Othr/ns:Id',
|
|
], statement, 'local_account'
|
|
)
|
|
self.add_value_from_node(
|
|
ns, node, './ns:Id', statement, 'statement_id')
|
|
self.add_value_from_node(
|
|
ns, node, './ns:Acct/ns:Ccy', statement, 'local_currency')
|
|
(statement.start_balance, statement.end_balance) = (
|
|
self.get_balance_amounts(ns, node))
|
|
entry_nodes = node.xpath('./ns:Ntry', namespaces={'ns': ns})
|
|
transactions = []
|
|
for entry_node in entry_nodes:
|
|
transaction = statement.create_transaction()
|
|
transactions.extend(self.parse_entry(ns, entry_node, transaction))
|
|
statement['transactions'] = transactions
|
|
if statement['transactions']:
|
|
execution_date = statement['transactions'][0].execution_date
|
|
statement.date = datetime.strptime(execution_date, "%Y-%m-%d")
|
|
# Prepend date of first transaction to improve id uniquenes
|
|
if execution_date not in statement.statement_id:
|
|
statement.statement_id = "%s-%s" % (
|
|
execution_date, statement.statement_id)
|
|
return statement
|
|
|
|
def check_version(self, ns, root):
|
|
"""Validate validity of camt file."""
|
|
# Check wether it is camt at all:
|
|
re_camt = re.compile(
|
|
r'(^urn:iso:std:iso:20022:tech:xsd:camt.'
|
|
r'|^ISO:camt.)'
|
|
)
|
|
if not re_camt.search(ns):
|
|
raise ValueError('no camt: ' + ns)
|
|
# Check wether version 052 or 053:
|
|
re_camt_version = re.compile(
|
|
r'(^urn:iso:std:iso:20022:tech:xsd:camt.053.'
|
|
r'|^urn:iso:std:iso:20022:tech:xsd:camt.052.'
|
|
r'|^ISO:camt.053.'
|
|
r'|^ISO:camt.052.)'
|
|
)
|
|
if not re_camt_version.search(ns):
|
|
raise ValueError('no camt 052 or 053: ' + ns)
|
|
# Check GrpHdr element:
|
|
root_0_0 = root[0][0].tag[len(ns) + 2:] # strip namespace
|
|
if root_0_0 != 'GrpHdr':
|
|
raise ValueError('expected GrpHdr, got: ' + root_0_0)
|
|
|
|
def parse(self, data):
|
|
"""Parse a camt.052 or camt.053 file."""
|
|
try:
|
|
root = etree.fromstring(
|
|
data, parser=etree.XMLParser(recover=True))
|
|
except etree.XMLSyntaxError:
|
|
# ABNAmro is known to mix up encodings
|
|
root = etree.fromstring(
|
|
data.decode('iso-8859-15').encode('utf-8'))
|
|
if root is None:
|
|
raise ValueError(
|
|
'Not a valid xml file, or not an xml file at all.')
|
|
ns = root.tag[1:root.tag.index("}")]
|
|
self.check_version(ns, root)
|
|
statements = []
|
|
for node in root[0][1:]:
|
|
statement = self.parse_statement(ns, node)
|
|
if len(statement['transactions']):
|
|
statements.append(statement)
|
|
return statements
|