154 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			154 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			Python
		
	
	
# -*- coding: utf-8 -*-
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# Copyright 2014, 2015 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from synapse.util.frozenutils import freeze, unfreeze
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class _EventInternalMetadata(object):
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    def __init__(self, internal_metadata_dict):
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        self.__dict__ = internal_metadata_dict
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    def get_dict(self):
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        return dict(self.__dict__)
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    def is_outlier(self):
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        return hasattr(self, "outlier") and self.outlier
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def _event_dict_property(key):
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    def getter(self):
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        return self._event_dict[key]
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    def setter(self, v):
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        self._event_dict[key] = v
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    def delete(self):
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        del self._event_dict[key]
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    return property(
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        getter,
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        setter,
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        delete,
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    )
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class EventBase(object):
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    def __init__(self, event_dict, signatures={}, unsigned={},
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                 internal_metadata_dict={}):
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        self.signatures = signatures
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        self.unsigned = unsigned
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        self._event_dict = event_dict
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        self.internal_metadata = _EventInternalMetadata(
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            internal_metadata_dict
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        )
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    auth_events = _event_dict_property("auth_events")
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    depth = _event_dict_property("depth")
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    content = _event_dict_property("content")
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    event_id = _event_dict_property("event_id")
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    hashes = _event_dict_property("hashes")
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    origin = _event_dict_property("origin")
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    origin_server_ts = _event_dict_property("origin_server_ts")
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    prev_events = _event_dict_property("prev_events")
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    prev_state = _event_dict_property("prev_state")
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    redacts = _event_dict_property("redacts")
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    room_id = _event_dict_property("room_id")
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    sender = _event_dict_property("sender")
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    state_key = _event_dict_property("state_key")
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    type = _event_dict_property("type")
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    user_id = _event_dict_property("sender")
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    @property
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    def membership(self):
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        return self.content["membership"]
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    def is_state(self):
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        return hasattr(self, "state_key")
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    def get_dict(self):
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        d = dict(self._event_dict)
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        d.update({
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            "signatures": self.signatures,
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            "unsigned": self.unsigned,
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        })
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        return d
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    def get(self, key, default):
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        return self._event_dict.get(key, default)
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    def get_internal_metadata_dict(self):
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        return self.internal_metadata.get_dict()
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    def get_pdu_json(self, time_now=None):
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        pdu_json = self.get_dict()
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        if time_now is not None and "age_ts" in pdu_json["unsigned"]:
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            age = time_now - pdu_json["unsigned"]["age_ts"]
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            pdu_json.setdefault("unsigned", {})["age"] = int(age)
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            del pdu_json["unsigned"]["age_ts"]
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        return pdu_json
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    def __set__(self, instance, value):
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        raise AttributeError("Unrecognized attribute %s" % (instance,))
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class FrozenEvent(EventBase):
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    def __init__(self, event_dict, internal_metadata_dict={}):
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        event_dict = dict(event_dict)
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        # Signatures is a dict of dicts, and this is faster than doing a
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        # copy.deepcopy
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        signatures = {
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            name: {sig_id: sig for sig_id, sig in sigs.items()}
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            for name, sigs in event_dict.pop("signatures", {}).items()
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        }
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        unsigned = dict(event_dict.pop("unsigned", {}))
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        frozen_dict = freeze(event_dict)
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        super(FrozenEvent, self).__init__(
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            frozen_dict,
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            signatures=signatures,
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            unsigned=unsigned,
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            internal_metadata_dict=internal_metadata_dict,
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        )
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    @staticmethod
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    def from_event(event):
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        e = FrozenEvent(
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            event.get_pdu_json()
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        )
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        e.internal_metadata = event.internal_metadata
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        return e
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    def get_dict(self):
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        # We need to unfreeze what we return
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        return unfreeze(super(FrozenEvent, self).get_dict())
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    def __str__(self):
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        return self.__repr__()
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    def __repr__(self):
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        return "<FrozenEvent event_id='%s', type='%s', state_key='%s'>" % (
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            self.event_id, self.type, self.get("state_key", None),
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        )
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