def _set_update_date(self, session):
sess_data = json.loads(session.serialized_data)
if not sess_data.get('fixed_lifetime'):
logger.debug("Updating session update date")
session.update_date = datetime.now(pytz.utc)
else:
logger.debug("Not updating update date of " \
"session with fixed lifetime")
def _get_cached_session(self, session_id):
logger.debug("Getting session from memcached")
str_sess_id = session_id.encode('utf8')
session = None
try:
session = self.mem_cache.get(str_sess_id)
except Exception, e:
logger.info("Session %s not found in memcached: %s",
str_sess_id, e)
def _save_session_to_cache(self, session):
str_sess_id = session.session_id.encode('utf8')
expire_sec = settings.session_valid_minutes * 60
expire_dt = session.update_date + timedelta(seconds=expire_sec)
curr_dt = datetime.now(pytz.utc)
if expire_dt <= curr_dt:
logger.debug("Session %s expired. Not saving to cache", session.session_id)
else:
expire_delta = expire_dt - curr_dt
# Workaround for excluding creation non expiring sessions
cache_expire_sec = expire_delta.seconds if expire_delta.seconds else 1
logger.debug("Saving session %s to cache. Current date: %s. " \
"Session update date: %s. " \
"Session in cache expired after %s seconds",
session.session_id, curr_dt, session.update_date, expire_delta.seconds)
self.mem_cache.set(str_sess_id, session,
time=cache_expire_sec)
