def test_time_manipulation():
round_tripped_datetime = utils.datetime_to_iso(
utils.from_unix_epoch_time_secs(
utils.to_unix_epoch_time_secs(
utils.iso_to_datetime("2014-12-10T19:09:34.000Z"))))
assert "2014-12-10T19:09:34.000Z" == round_tripped_datetime
round_tripped_datetime = utils.datetime_to_iso(
utils.from_unix_epoch_time_secs(
utils.to_unix_epoch_time_secs(
utils.iso_to_datetime("1969-04-28T23:48:34.123Z"))))
assert "1969-04-28T23:48:34.123Z" == round_tripped_datetime
# check that rounding to milliseconds works
round_tripped_datetime = utils.datetime_to_iso(
utils.from_unix_epoch_time_secs(
utils.to_unix_epoch_time_secs(
utils.iso_to_datetime("1969-04-28T23:48:34.999499Z"))))
assert "1969-04-28T23:48:34.999Z" == round_tripped_datetime
# check that rounding to milliseconds works
round_tripped_datetime = utils.datetime_to_iso(
utils.from_unix_epoch_time_secs(
utils.to_unix_epoch_time_secs(
utils.iso_to_datetime("1969-04-27T23:59:59.999999Z"))))
assert "1969-04-28T00:00:00.000Z" == round_tripped_datetime
def get_token(self, syn, entity_id, permission,
min_remaining_life: datetime.timedelta):
with self._lock:
utcnow = datetime.datetime.utcnow()
token_cache = self._tokens.get(permission)
if token_cache is None:
raise ValueError(f"Invalid STS permission {permission}")
token = token_cache.get(entity_id)
if not token or (iso_to_datetime(token['expiration']) -
utcnow) < min_remaining_life:
# either there is no cached token or the remaining life on the token isn't enough so fetch new
token = token_cache[entity_id] = self._fetch_token(
syn, entity_id, permission)
return token
def _prune(self):
while len(self) > self.max_size:
self.popitem(last=False)
to_delete = []
before_timestamp = datetime.datetime.utcnow().timestamp()
for entity_id, token in self.items():
expiration_iso_str = token['expiration']
# our "iso_to_datetime" util naively assumes UTC ("Z") times which in practice STS tokens are
if iso_to_datetime(
expiration_iso_str).timestamp() < before_timestamp:
to_delete.append(entity_id)
else:
break
for entity_id in to_delete:
del self[entity_id]
def iso_time_to_epoch(iso_time):
"""
Convert an ISO formatted time into seconds since unix epoch
"""
return None if iso_time is None else utils.to_unix_epoch_time_secs(
utils.iso_to_datetime(iso_time))