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# Copyright (C) 2014 Ipsilon project Contributors, for licensee see COPYING
from ipsilon.util.data import TranStore
from ipsilon.util.log import Log
from datetime import datetime
from ipsilon.util.cookies import SecureCookie
TRANSTABLE = 'transactions'
TRANSID = "ipsilon_transaction_id"
class Transaction(Log):
def __init__(self, provider, **kwargs):
self.provider = provider
self.transaction_id = None
self._ts = TranStore()
self.cookie = None
tid = kwargs.get(TRANSID)
if tid:
self.transaction_id = tid
data = self.retrieve()
if data and 'provider' in data:
self.provider = data['provider']
self._get_cookie(data)
else:
data = {'provider': self.provider,
'origintime': str(datetime.now())}
self.transaction_id = self._ts.new_unique_data(TRANSTABLE, data)
self._set_cookie()
self.debug('Transaction: %s %s' % (self.provider,
self.transaction_id))
def _set_cookie(self):
self.cookie = SecureCookie(name=None, value=self.provider)
self.cookie.send()
cookiedata = {'cookie': self.cookie.name}
data = {self.transaction_id: cookiedata}
self._ts.save_unique_data(TRANSTABLE, data)
def _get_cookie(self, data=None):
if data is None:
data = self.retrieve()
if data is None or 'cookie' not in data:
raise ValueError('Cookie name not available')
self.cookie = SecureCookie(data['cookie'])
self.cookie.receive()
if self.cookie.value is None:
raise ValueError('Missing or invalid cookie')
def _del_cookie(self):
if self.cookie:
self.cookie.delete()
def wipe(self):
if not self.transaction_id:
return
self._ts.del_unique_data(TRANSTABLE, self.transaction_id)
self._del_cookie()
self.transaction_id = None
def store(self, data):
savedata = {self.transaction_id: data}
self._ts.save_unique_data(TRANSTABLE, savedata)
def retrieve(self):
data = self._ts.get_unique_data(TRANSTABLE,
uuidval=self.transaction_id)
return data.get(self.transaction_id) or dict()
def get_GET_arg(self):
return "%s=%s" % (TRANSID, self.transaction_id)
def get_POST_tuple(self):
return (TRANSID, self.transaction_id)
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