diff options
| -rw-r--r-- | synapse/api/constants.py | 2 | ||||
| -rw-r--r-- | synapse/events/__init__.py | 110 | ||||
| -rw-r--r-- | synapse/events/builder.py | 12 | ||||
| -rw-r--r-- | synapse/events/utils.py | 3 |
4 files changed, 108 insertions, 19 deletions
diff --git a/synapse/api/constants.py b/synapse/api/constants.py index 51ee078bc3..b248e193fa 100644 --- a/synapse/api/constants.py +++ b/synapse/api/constants.py @@ -126,10 +126,12 @@ class EventFormatVersions(object): independently from the room version. """ V1 = 1 + V2 = 2 KNOWN_EVENT_FORMAT_VERSIONS = { EventFormatVersions.V1, + EventFormatVersions.V2, } diff --git a/synapse/events/__init__.py b/synapse/events/__init__.py index 3fe52aaa45..627c55c404 100644 --- a/synapse/events/__init__.py +++ b/synapse/events/__init__.py @@ -1,5 +1,6 @@ # -*- coding: utf-8 -*- # Copyright 2014-2016 OpenMarket Ltd +# Copyright 2019 New Vector Ltd # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. @@ -18,11 +19,9 @@ from distutils.util import strtobool import six -from synapse.api.constants import ( - KNOWN_EVENT_FORMAT_VERSIONS, - KNOWN_ROOM_VERSIONS, - EventFormatVersions, -) +from unpaddedbase64 import encode_base64 + +from synapse.api.constants import KNOWN_ROOM_VERSIONS, EventFormatVersions, RoomVersions from synapse.util.caches import intern_dict from synapse.util.frozenutils import freeze @@ -225,22 +224,91 @@ class FrozenEvent(EventBase): rejected_reason=rejected_reason, ) - @staticmethod - def from_event(event): - e = FrozenEvent( - event.get_pdu_json() + def __str__(self): + return self.__repr__() + + def __repr__(self): + return "<FrozenEvent event_id='%s', type='%s', state_key='%s'>" % ( + self.get("event_id", None), + self.get("type", None), + self.get("state_key", None), ) - e.internal_metadata = event.internal_metadata - return e +class FrozenEventV2(EventBase): + format_version = EventFormatVersions.V2 # All events of this type are V2 + + def __init__(self, event_dict, internal_metadata_dict={}, rejected_reason=None): + event_dict = dict(event_dict) + + # Signatures is a dict of dicts, and this is faster than doing a + # copy.deepcopy + signatures = { + name: {sig_id: sig for sig_id, sig in sigs.items()} + for name, sigs in event_dict.pop("signatures", {}).items() + } + + assert "event_id" not in event_dict + + unsigned = dict(event_dict.pop("unsigned", {})) + + # We intern these strings because they turn up a lot (especially when + # caching). + event_dict = intern_dict(event_dict) + + if USE_FROZEN_DICTS: + frozen_dict = freeze(event_dict) + else: + frozen_dict = event_dict + + self._event_id = None + self.type = event_dict["type"] + if "state_key" in event_dict: + self.state_key = event_dict["state_key"] + + super(FrozenEventV2, self).__init__( + frozen_dict, + signatures=signatures, + unsigned=unsigned, + internal_metadata_dict=internal_metadata_dict, + rejected_reason=rejected_reason, + ) + + @property + def event_id(self): + # We have to import this here as otherwise we get an import loop which + # is hard to break. + from synapse.crypto.event_signing import compute_event_reference_hash + + if self._event_id: + return self._event_id + self._event_id = "$" + encode_base64(compute_event_reference_hash(self)[1]) + return self._event_id + + def prev_event_ids(self): + """Returns the list of prev event IDs. The order matches the order + specified in the event, though there is no meaning to it. + + Returns: + list[str]: The list of event IDs of this event's prev_events + """ + return self.prev_events + + def auth_event_ids(self): + """Returns the list of auth event IDs. The order matches the order + specified in the event, though there is no meaning to it. + + Returns: + list[str]: The list of event IDs of this event's auth_events + """ + return self.auth_events def __str__(self): return self.__repr__() def __repr__(self): - return "<FrozenEvent event_id='%s', type='%s', state_key='%s'>" % ( - self.get("event_id", None), + return "<FrozenEventV2 event_id='%s', type='%s', state_key='%s'>" % ( + self.event_id, self.get("type", None), self.get("state_key", None), ) @@ -259,7 +327,13 @@ def room_version_to_event_format(room_version): # We should have already checked version, so this should not happen raise RuntimeError("Unrecognized room version %s" % (room_version,)) - return EventFormatVersions.V1 + if room_version in ( + RoomVersions.V1, RoomVersions.V2, RoomVersions.VDH_TEST, + RoomVersions.STATE_V2_TEST, + ): + return EventFormatVersions.V1 + else: + raise RuntimeError("Unrecognized room version %s" % (room_version,)) def event_type_from_format_version(format_version): @@ -273,8 +347,12 @@ def event_type_from_format_version(format_version): type: A type that can be initialized as per the initializer of `FrozenEvent` """ - if format_version not in KNOWN_EVENT_FORMAT_VERSIONS: + + if format_version == EventFormatVersions.V1: + return FrozenEvent + elif format_version == EventFormatVersions.V2: + return FrozenEventV2 + else: raise Exception( "No event format %r" % (format_version,) ) - return FrozenEvent diff --git a/synapse/events/builder.py b/synapse/events/builder.py index fb0683cea8..06e01be918 100644 --- a/synapse/events/builder.py +++ b/synapse/events/builder.py @@ -21,6 +21,7 @@ from synapse.api.constants import ( KNOWN_EVENT_FORMAT_VERSIONS, KNOWN_ROOM_VERSIONS, MAX_DEPTH, + EventFormatVersions, ) from synapse.crypto.event_signing import add_hashes_and_signatures from synapse.types import EventID @@ -109,8 +110,12 @@ class EventBuilder(object): self, state_ids, ) - auth_events = yield self._store.add_event_hashes(auth_ids) - prev_events = yield self._store.add_event_hashes(prev_event_ids) + if self.format_version == EventFormatVersions.V1: + auth_events = yield self._store.add_event_hashes(auth_ids) + prev_events = yield self._store.add_event_hashes(prev_event_ids) + else: + auth_events = auth_ids + prev_events = prev_event_ids old_depth = yield self._store.get_max_depth_of( prev_event_ids, @@ -228,7 +233,8 @@ def create_local_event_from_event_dict(clock, hostname, signing_key, time_now = int(clock.time_msec()) - event_dict["event_id"] = _create_event_id(clock, hostname) + if format_version == EventFormatVersions.V1: + event_dict["event_id"] = _create_event_id(clock, hostname) event_dict["origin"] = hostname event_dict["origin_server_ts"] = time_now diff --git a/synapse/events/utils.py b/synapse/events/utils.py index 63f693f259..07fccdd8f9 100644 --- a/synapse/events/utils.py +++ b/synapse/events/utils.py @@ -267,6 +267,7 @@ def serialize_event(e, time_now_ms, as_client_event=True, Returns: dict """ + # FIXME(erikj): To handle the case of presence events and the like if not isinstance(e, EventBase): return e @@ -276,6 +277,8 @@ def serialize_event(e, time_now_ms, as_client_event=True, # Should this strip out None's? d = {k: v for k, v in e.get_dict().items()} + d["event_id"] = e.event_id + if "age_ts" in d["unsigned"]: d["unsigned"]["age"] = time_now_ms - d["unsigned"]["age_ts"] del d["unsigned"]["age_ts"] |