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.
242 lines
9.3 KiB
242 lines
9.3 KiB
# -*- coding: utf-8 -*-
|
|
"""Class to parse camt files."""
|
|
# © 2013-2016 Therp BV <http://therp.nl>
|
|
# Copyright 2017 Open Net Sàrl
|
|
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
|
|
import re
|
|
from lxml import etree
|
|
|
|
from odoo import models
|
|
|
|
|
|
class CamtParser(models.AbstractModel):
|
|
_name = 'account.bank.statement.import.camt.parser'
|
|
"""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])
|
|
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:AddtlNtryInf',
|
|
'./ns:Refs/ns:InstrId',
|
|
], transaction, 'note', join_str='\n')
|
|
# name
|
|
self.add_value_from_node(
|
|
ns, node, [
|
|
'./ns:AddtlTxInf',
|
|
], transaction, 'name', join_str='\n')
|
|
# eref
|
|
self.add_value_from_node(
|
|
ns, node, [
|
|
'./ns:RmtInf/ns:Strd/ns:CdtrRefInf/ns:Ref',
|
|
'./ns:Refs/ns:EndToEndId',
|
|
'./ns:Ntry/ns:AcctSvcrRef'
|
|
],
|
|
transaction, 'ref'
|
|
)
|
|
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, 'partner_name')
|
|
# 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['account_number'] = iban_node[0].text
|
|
else:
|
|
self.add_value_from_node(
|
|
ns, account_node[0], './ns:Othr/ns:Id', transaction,
|
|
'account_number'
|
|
)
|
|
|
|
def parse_entry(self, ns, node, transaction=None):
|
|
"""Parse an Ntry node and yield transactions"""
|
|
if transaction is None:
|
|
transaction = {'name': '/', 'amount': 0} # fallback defaults
|
|
self.add_value_from_node(
|
|
ns, node, './ns:BookgDt/ns:Dt', transaction, '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',
|
|
'./ns:NtryDtls/ns:TxDtls/ns:Refs/ns:AcctSvcrRef'
|
|
],
|
|
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 node in details_nodes:
|
|
transaction = transaction_base.copy()
|
|
self.parse_transaction_details(ns, node, transaction)
|
|
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."""
|
|
result = {}
|
|
self.add_value_from_node(
|
|
ns, node, [
|
|
'./ns:Acct/ns:Id/ns:IBAN',
|
|
'./ns:Acct/ns:Id/ns:Othr/ns:Id',
|
|
], result, 'account_number'
|
|
)
|
|
self.add_value_from_node(
|
|
ns, node, './ns:Id', result, 'name')
|
|
self.add_value_from_node(
|
|
ns, node, './ns:Acct/ns:Ccy', result, 'currency')
|
|
result['balance_start'], result['balance_end_real'] = (
|
|
self.get_balance_amounts(ns, node))
|
|
entry_nodes = node.xpath('./ns:Ntry', namespaces={'ns': ns})
|
|
transactions = []
|
|
for entry_node in entry_nodes:
|
|
transactions.extend(self.parse_entry(ns, entry_node))
|
|
result['transactions'] = transactions
|
|
result['date'] = sorted(transactions,
|
|
key=lambda x: x['date'],
|
|
reverse=True
|
|
)[0]['date']
|
|
return result
|
|
|
|
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 ,053 or 054:
|
|
re_camt_version = re.compile(
|
|
r'(^urn:iso:std:iso:20022:tech:xsd:camt.054.'
|
|
r'|^urn:iso:std:iso:20022:tech:xsd:camt.053.'
|
|
r'|^urn:iso:std:iso:20022:tech:xsd:camt.052.'
|
|
r'|^ISO:camt.054.'
|
|
r'|^ISO:camt.053.'
|
|
r'|^ISO:camt.052.)'
|
|
)
|
|
if not re_camt_version.search(ns):
|
|
raise ValueError('no camt 052 or 053 or 054: ' + 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 or camt.054 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 = []
|
|
currency = None
|
|
account_number = None
|
|
for node in root[0][1:]:
|
|
statement = self.parse_statement(ns, node)
|
|
if len(statement['transactions']):
|
|
if 'currency' in statement:
|
|
currency = statement.pop('currency')
|
|
if 'account_number' in statement:
|
|
account_number = statement.pop('account_number')
|
|
statements.append(statement)
|
|
return currency, account_number, statements
|