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lansforsakringar.py
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lansforsakringar.py
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import json
import logging
import os
import re
import requests
from bs4 import BeautifulSoup
logger = logging.getLogger(__name__)
class LansforsarkingarError(Exception):
pass
class Lansforsarkingar(object):
BASE_URL = 'https://secure246.lansforsakringar.se'
HEADERS = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) '
'AppleWebKit/537.36 (KHTML, like Gecko) '
'Chrome/59.0.3071.109 Safari/537.36'}
def __init__(self, personal_identity_number, pin_code):
if not personal_identity_number or not pin_code:
raise LansforsarkingarError('Missing personal identity number '
'({}) or pin code ({})'.format(
personal_identity_number,
pin_code))
self.personal_identity_number = personal_identity_number
self.pin_code = pin_code
self.accounts = {}
self.token = None
self.json_token = None
self.last_req_body = None
# Setup requests session
self.session = requests.Session()
self.session.headers.update(self.HEADERS)
def _hidden_inputs_as_dict(self, elements):
"""Return all hidden inputs in elements list as a dict."""
data = {}
# Make sure elements is a list
if not isinstance(elements, list):
elements = [elements]
for element in elements:
for input in element.select('input[type=hidden]'):
data[input.attrs['name']] = input.attrs.get('value', '')
return data
def _fix_balance(self, balance):
"""Fix the bank balance and return it as a float."""
return float(balance.replace(',', '.').replace(' ', ''))
def _parse_token(self, body):
"""Parse the token from body."""
token_match = re.search('var\s*token\s*=[\s\']*(\d+)', body)
return int(token_match.group(1))
def _parse_json_token(self, body):
"""Parse the JSON token from body."""
token_match = re.search('var\s*jsonToken\s*=[\s\']*([\w-]+)', body)
return token_match.group(1)
def _parse_tokens(self, body):
"""Parse and save tokens from body."""
old_token = self.token
old_json_token = self.json_token
self.token = self._parse_token(body)
self.json_token = self._parse_json_token(body)
logger.debug('Token set to: %s (Old: %s)', self.token, old_token)
logger.debug('JSON token set to: %s (Old: %s)', self.json_token,
old_json_token)
def _parse_account_transactions(self, body):
"""Parse and return list of all account transactions."""
transactions = []
soup = BeautifulSoup(body, 'html.parser')
for row in soup.select('.history.data-list-wrapper-inner tr'):
transaction = {
'date': row.select('td')[1].text,
'type': row.select('td')[2].select('span')[0].text,
'text': row.select('td')[2].select('div')[0].text,
'amount': self._fix_balance(row.select('td')[3].text)
}
transactions.append(transaction)
return transactions
def login(self):
"""Login to the bank."""
# Fetch and parse hidden inputs from login page
# Use specific CA bundle to fix SSL verify problems if set as env.
verify = True
override_ca_bundle = os.getenv('OVERRIDE_CA_BUNDLE')
if override_ca_bundle:
verify = override_ca_bundle
req = self.session.get(self.BASE_URL + '/im/login/privat',
verify=verify)
# Get the login form
soup = BeautifulSoup(req.content, 'html.parser')
login_form = soup.select('#pPin_form')
# Post login to current URL
login_post_url = req.url
# Build POST data with login settings and hidden inputs
data = self._hidden_inputs_as_dict(login_form)
data['pPin_inp'] = self.personal_identity_number
data['pPinKod_inp'] = self.pin_code
# Login request
req = self.session.post(login_post_url, data=data)
self.last_req_body = req.content
self._parse_tokens(req.text)
return True
def get_accounts(self):
"""Fetch bank accounts by using json.
This uses the same json api URL that the browser does when logged in.
It also need to send the CSRFToken (JSON token) in order to work.
"""
data = {
'customerId': self.personal_identity_number,
'responseControl': {
'filter': {
'includes': ['ALL']
}
}
}
headers = {'Content-type': 'application/json',
'Accept': 'application/json',
'CSRFToken': self.json_token}
path = '/im/json/overview/getaccounts'
req = self.session.post(
self.BASE_URL + path,
data=json.dumps(data),
headers=headers)
for account in req.json()['response']['accounts']:
self.accounts[account['number']] = account
del(self.accounts[account['number']]['number'])
return self.accounts
def get_account_transactions(self, account_number):
"""Fetch and return account transactions for account_number."""
logger.debug('Fetching account transactions for account %s',
account_number)
# Get javax.faces.ViewState from the last request
last_req_hidden_inputs = self._hidden_inputs_as_dict(
BeautifulSoup(self.last_req_body, 'html.parser'))
data = {
'dialog-overview_showAccount': 'Submit',
'menuLinks_SUBMIT': 1,
'menuLinks:_idcl': '',
'menuLinks:_link_hidden_': '',
'javax.faces.ViewState': last_req_hidden_inputs.get(
'javax.faces.ViewState'),
'_token': self.token,
'productId': account_number
}
path = '/im/im/csw.jsf'
req = self.session.post(self.BASE_URL + path, data=data)
self.last_req_body = req.content
logger.debug('Transaction request response code %s', req.status_code)
self._parse_tokens(req.text)
# Parse transactions
transactions = self._parse_account_transactions(req.text)
# Request was ok but but no transactions were found. Try to refetch.
# Requests seems to loose the connections sometimes with the message
# "Resetting dropped connection". This should work around that
# problem.
if req.status_code == requests.codes.ok and not transactions:
transactions = self.get_account_transactions(account_number)
return transactions