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# -*- coding: utf-8 -*-
# Copyright 2014 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from frozendict import frozendict
import copy
def _freeze(o):
if isinstance(o, dict) or isinstance(o, frozendict):
return frozendict({k: _freeze(v) for k, v in o.items()})
if isinstance(o, basestring):
return o
try:
return tuple([_freeze(i) for i in o])
except TypeError:
pass
return o
def _unfreeze(o):
if isinstance(o, frozendict) or isinstance(o, dict):
return dict({k: _unfreeze(v) for k, v in o.items()})
if isinstance(o, basestring):
return o
try:
return [_unfreeze(i) for i in o]
except TypeError:
pass
return o
class _EventInternalMetadata(object):
def __init__(self, internal_metadata_dict):
self.__dict__ = copy.deepcopy(internal_metadata_dict)
def get_dict(self):
return dict(self.__dict__)
def is_outlier(self):
return hasattr(self, "outlier") and self.outlier
def _event_dict_property(key):
def getter(self):
return self._event_dict[key]
def setter(self, v):
self._event_dict[key] = v
def delete(self):
del self._event_dict[key]
return property(
getter,
setter,
delete,
)
class EventBase(object):
def __init__(self, event_dict, signatures={}, unsigned={},
internal_metadata_dict={}):
self.signatures = copy.deepcopy(signatures)
self.unsigned = copy.deepcopy(unsigned)
self._event_dict = copy.deepcopy(event_dict)
self.internal_metadata = _EventInternalMetadata(
internal_metadata_dict
)
auth_events = _event_dict_property("auth_events")
depth = _event_dict_property("depth")
content = _event_dict_property("content")
event_id = _event_dict_property("event_id")
hashes = _event_dict_property("hashes")
origin = _event_dict_property("origin")
prev_events = _event_dict_property("prev_events")
prev_state = _event_dict_property("prev_state")
room_id = _event_dict_property("room_id")
sender = _event_dict_property("sender")
state_key = _event_dict_property("state_key")
type = _event_dict_property("type")
user_id = _event_dict_property("sender")
@property
def membership(self):
return self.content["membership"]
def is_state(self):
return hasattr(self, "state_key")
def get_dict(self):
d = dict(self._event_dict)
d.update({
"signatures": self.signatures,
"unsigned": self.unsigned,
})
return d
def get_internal_metadata_dict(self):
return self.internal_metadata.get_dict()
def get_pdu_json(self, time_now=None):
pdu_json = self.get_dict()
if time_now is not None and "age_ts" in pdu_json["unsigned"]:
age = time_now - pdu_json["unsigned"]["age_ts"]
pdu_json.setdefault("unsigned", {})["age"] = int(age)
del pdu_json["unsigned"]["age_ts"]
return pdu_json
def __set__(self, instance, value):
raise AttributeError("Unrecognized attribute %s" % (instance,))
class FrozenEvent(EventBase):
def __init__(self, event_dict):
event_dict = copy.deepcopy(event_dict)
signatures = copy.deepcopy(event_dict.pop("signatures", {}))
unsigned = copy.deepcopy(event_dict.pop("unsigned", {}))
frozen_dict = _freeze(event_dict)
super(FrozenEvent, self).__init__(
frozen_dict,
signatures=signatures,
unsigned=unsigned
)
@staticmethod
def from_event(event):
e = FrozenEvent(
event.get_pdu_json()
)
e.internal_metadata = event.internal_metadata
return e
def get_dict(self):
# We need to unfreeze what we return
return _unfreeze(super(FrozenEvent, self).get_dict())
def __str__(self):
return "<FrozenEvent event_id='%s', type='%s', state_key='%s'>" % (
self.event_id, self.type, self.state_key,
)
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