weboob-devel/modules/paypal/browser.py
2014-06-22 22:37:20 +02:00

142 lines
5.2 KiB
Python

# -*- coding: utf-8 -*-
# Copyright(C) 2013 Laurent Bachelier
#
# This file is part of weboob.
#
# weboob 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.
#
# weboob 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 weboob. If not, see <http://www.gnu.org/licenses/>.
from weboob.tools.browser import BaseBrowser, BrowserIncorrectPassword
from .pages import LoginPage, AccountPage, DownloadHistoryPage, SubmitPage, HistoryParser, UselessPage, HistoryPage
import datetime
__all__ = ['Paypal']
class Paypal(BaseBrowser):
DOMAIN = 'www.paypal.com'
PROTOCOL = 'https'
CERTHASH = ['b8f6c76050ed3035aab08474b1da0ff783f20d114b1740e8db275fe433ff69af', '96753399cf183334cef00a72719ea8e13cfe68d1e953006348f41f884180de15']
ENCODING = 'UTF-8'
PAGES = {
'/cgi-bin/webscr\?cmd=_login-run$': LoginPage,
'/cgi-bin/webscr\?cmd=_login-submit.+$': LoginPage, # wrong login
'/cgi-bin/webscr\?cmd=_login-processing.+$': UselessPage,
'/cgi-bin/webscr\?cmd=_account&nav=0.0$': AccountPage,
'/cgi-bin/webscr\?cmd=_history-download&nav=0.3.1$': DownloadHistoryPage,
'/cgi-bin/webscr\?cmd=_history&nav=0.3.0$': HistoryPage,
'/cgi-bin/webscr\?cmd=_history&dispatch=[a-z0-9]+$': HistoryPage,
'/cgi-bin/webscr\?dispatch=[a-z0-9]+$': (SubmitPage, HistoryParser()),
}
DEFAULT_TIMEOUT = 30 # CSV export is slow
BEGINNING = datetime.date(1998,6,1) # The day PayPal was founded
def home(self):
self.location('https://' + self.DOMAIN + '/en/cgi-bin/webscr?cmd=_login-run')
def is_logged(self):
# TODO Does not handle disconnect mid-session
return not self.is_on_page(LoginPage)
def login(self):
assert isinstance(self.username, basestring)
assert isinstance(self.password, basestring)
if not self.is_on_page(LoginPage):
self.location('https://' + self.DOMAIN + '/en/cgi-bin/webscr?cmd=_login-run')
self.page.login(self.username, self.password)
if self.is_on_page(LoginPage):
raise BrowserIncorrectPassword()
def get_accounts(self):
if not self.is_on_page(AccountPage):
self.location('/en/cgi-bin/webscr?cmd=_account&nav=0.0')
return self.page.get_accounts()
def get_account(self, _id):
if not self.is_on_page(AccountPage):
self.location('/en/cgi-bin/webscr?cmd=_account&nav=0.0')
return self.page.get_account(_id)
def get_history(self, account):
self.history(start=self.BEGINNING, end=datetime.date.today())
parse = True
while parse:
for trans in self.page.iter_transactions(account):
yield trans
parse = self.page.next()
def history(self, start, end):
self.location('/en/cgi-bin/webscr?cmd=_history&nav=0.3.0')
self.page.filter(start, end)
assert self.is_on_page(HistoryPage)
def get_download_history(self, account):
for csv in self.download_history():
for trans in self.page.iter_transactions(account):
yield trans
def period_has_trans(self, start, end):
"""
Checks if there're any transactions in a given period.
"""
self.history(start, end)
return next(self.page.parse(), False) or self.page.next()
def bisect_oldest_date(self, start, end, steps=5):
"""
Finds an approximate beginning of transactions history in a
given number of iterations.
"""
if not steps:
return start
middle = start + (end-start)/2
if self.period_has_trans(start, middle):
return self.bisect_oldest_date(start, middle, steps-1)
else:
return self.bisect_oldest_date(middle, end, steps-1)
def download_history(self, step=90):
"""
Download CSV history.
However, it is not normalized, and sometimes the download is refused
and sent later by mail.
"""
# PayPal limitations as of 2014-06-16
assert step <= 365*2
# To minimize the number of CSV requests, let's first find an
# approximate starting point of transaction history.
end = datetime.date.today()
beginning = self.bisect_oldest_date(self.BEGINNING, end)
while end > beginning:
start = end - datetime.timedelta(step)
self.location('/en/cgi-bin/webscr?cmd=_history-download&nav=0.3.1')
assert self.is_on_page(DownloadHistoryPage)
self.page.download(start, end)
assert self.is_on_page(SubmitPage)
yield self.page.document
end = start - datetime.timedelta(1)
def transfer(self, from_id, to_id, amount, reason=None):
raise NotImplementedError()