From fa780e9721c940479a72eed9877ccad4fef78160 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Fri, 20 Dec 2019 10:32:02 +0000 Subject: [PATCH] Change EventContext to use the Storage class (#6564) --- changelog.d/6564.misc | 1 + synapse/api/auth.py | 2 +- synapse/events/snapshot.py | 36 +++++++++++-------- synapse/events/third_party_rules.py | 2 +- synapse/handlers/_base.py | 2 +- synapse/handlers/federation.py | 14 ++++---- synapse/handlers/message.py | 10 +++--- synapse/handlers/room.py | 2 +- synapse/handlers/room_member.py | 4 +-- synapse/push/bulk_push_rule_evaluator.py | 4 +-- synapse/replication/http/federation.py | 5 ++- synapse/replication/http/send_event.py | 3 +- synapse/storage/data_stores/main/push_rule.py | 2 +- .../storage/data_stores/main/roommember.py | 2 +- tests/test_state.py | 28 +++++++-------- 15 files changed, 64 insertions(+), 53 deletions(-) create mode 100644 changelog.d/6564.misc diff --git a/changelog.d/6564.misc b/changelog.d/6564.misc new file mode 100644 index 000000000..f644f5868 --- /dev/null +++ b/changelog.d/6564.misc @@ -0,0 +1 @@ +Change `EventContext` to use the `Storage` class, in preparation for moving state database queries to a separate data store. diff --git a/synapse/api/auth.py b/synapse/api/auth.py index 9fd52a8c7..abbc7079a 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py @@ -79,7 +79,7 @@ class Auth(object): @defer.inlineCallbacks def check_from_context(self, room_version, event, context, do_sig_check=True): - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() auth_events_ids = yield self.compute_auth_events( event, prev_state_ids, for_verification=True ) diff --git a/synapse/events/snapshot.py b/synapse/events/snapshot.py index 64e898f40..a44baea36 100644 --- a/synapse/events/snapshot.py +++ b/synapse/events/snapshot.py @@ -149,7 +149,7 @@ class EventContext: # the prev_state_ids, so if we're a state event we include the event # id that we replaced in the state. if event.is_state(): - prev_state_ids = yield self.get_prev_state_ids(store) + prev_state_ids = yield self.get_prev_state_ids() prev_state_id = prev_state_ids.get((event.type, event.state_key)) else: prev_state_id = None @@ -167,12 +167,13 @@ class EventContext: } @staticmethod - def deserialize(store, input): + def deserialize(storage, input): """Converts a dict that was produced by `serialize` back into a EventContext. Args: - store (DataStore): Used to convert AS ID to AS object + storage (Storage): Used to convert AS ID to AS object and fetch + state. input (dict): A dict produced by `serialize` Returns: @@ -181,6 +182,7 @@ class EventContext: context = _AsyncEventContextImpl( # We use the state_group and prev_state_id stuff to pull the # current_state_ids out of the DB and construct prev_state_ids. + storage=storage, prev_state_id=input["prev_state_id"], event_type=input["event_type"], event_state_key=input["event_state_key"], @@ -193,7 +195,7 @@ class EventContext: app_service_id = input["app_service_id"] if app_service_id: - context.app_service = store.get_app_service_by_id(app_service_id) + context.app_service = storage.main.get_app_service_by_id(app_service_id) return context @@ -216,7 +218,7 @@ class EventContext: return self._state_group @defer.inlineCallbacks - def get_current_state_ids(self, store): + def get_current_state_ids(self): """ Gets the room state map, including this event - ie, the state in ``state_group`` @@ -234,11 +236,11 @@ class EventContext: if self.rejected: raise RuntimeError("Attempt to access state_ids of rejected event") - yield self._ensure_fetched(store) + yield self._ensure_fetched() return self._current_state_ids @defer.inlineCallbacks - def get_prev_state_ids(self, store): + def get_prev_state_ids(self): """ Gets the room state map, excluding this event. @@ -250,7 +252,7 @@ class EventContext: Maps a (type, state_key) to the event ID of the state event matching this tuple. """ - yield self._ensure_fetched(store) + yield self._ensure_fetched() return self._prev_state_ids def get_cached_current_state_ids(self): @@ -270,7 +272,7 @@ class EventContext: return self._current_state_ids - def _ensure_fetched(self, store): + def _ensure_fetched(self): return defer.succeed(None) @@ -282,6 +284,8 @@ class _AsyncEventContextImpl(EventContext): Attributes: + _storage (Storage) + _fetching_state_deferred (Deferred|None): Resolves when *_state_ids have been calculated. None if we haven't started calculating yet @@ -295,28 +299,30 @@ class _AsyncEventContextImpl(EventContext): that was replaced. """ + # This needs to have a default as we're inheriting + _storage = attr.ib(default=None) _prev_state_id = attr.ib(default=None) _event_type = attr.ib(default=None) _event_state_key = attr.ib(default=None) _fetching_state_deferred = attr.ib(default=None) - def _ensure_fetched(self, store): + def _ensure_fetched(self): if not self._fetching_state_deferred: - self._fetching_state_deferred = run_in_background( - self._fill_out_state, store - ) + self._fetching_state_deferred = run_in_background(self._fill_out_state) return make_deferred_yieldable(self._fetching_state_deferred) @defer.inlineCallbacks - def _fill_out_state(self, store): + def _fill_out_state(self): """Called to populate the _current_state_ids and _prev_state_ids attributes by loading from the database. """ if self.state_group is None: return - self._current_state_ids = yield store.get_state_ids_for_group(self.state_group) + self._current_state_ids = yield self._storage.state.get_state_ids_for_group( + self.state_group + ) if self._prev_state_id and self._event_state_key is not None: self._prev_state_ids = dict(self._current_state_ids) diff --git a/synapse/events/third_party_rules.py b/synapse/events/third_party_rules.py index 714a9b157..86f7e5f8a 100644 --- a/synapse/events/third_party_rules.py +++ b/synapse/events/third_party_rules.py @@ -53,7 +53,7 @@ class ThirdPartyEventRules(object): if self.third_party_rules is None: return True - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() # Retrieve the state events from the database. state_events = {} diff --git a/synapse/handlers/_base.py b/synapse/handlers/_base.py index d15c6282f..51413d910 100644 --- a/synapse/handlers/_base.py +++ b/synapse/handlers/_base.py @@ -134,7 +134,7 @@ class BaseHandler(object): guest_access = event.content.get("guest_access", "forbidden") if guest_access != "can_join": if context: - current_state_ids = yield context.get_current_state_ids(self.store) + current_state_ids = yield context.get_current_state_ids() current_state = yield self.store.get_events( list(current_state_ids.values()) ) diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 60bb00fc6..05ae40dde 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -718,7 +718,7 @@ class FederationHandler(BaseHandler): # changing their profile info. newly_joined = True - prev_state_ids = await context.get_prev_state_ids(self.store) + prev_state_ids = await context.get_prev_state_ids() prev_state_id = prev_state_ids.get((event.type, event.state_key)) if prev_state_id: @@ -1418,7 +1418,7 @@ class FederationHandler(BaseHandler): user = UserID.from_string(event.state_key) yield self.user_joined_room(user, event.room_id) - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() state_ids = list(prev_state_ids.values()) auth_chain = yield self.store.get_auth_chain(state_ids) @@ -1927,7 +1927,7 @@ class FederationHandler(BaseHandler): context = yield self.state_handler.compute_event_context(event, old_state=state) if not auth_events: - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() auth_events_ids = yield self.auth.compute_auth_events( event, prev_state_ids, for_verification=True ) @@ -2336,12 +2336,12 @@ class FederationHandler(BaseHandler): k: a.event_id for k, a in iteritems(auth_events) if k != event_key } - current_state_ids = yield context.get_current_state_ids(self.store) + current_state_ids = yield context.get_current_state_ids() current_state_ids = dict(current_state_ids) current_state_ids.update(state_updates) - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() prev_state_ids = dict(prev_state_ids) prev_state_ids.update({k: a.event_id for k, a in iteritems(auth_events)}) @@ -2625,7 +2625,7 @@ class FederationHandler(BaseHandler): event.content["third_party_invite"]["signed"]["token"], ) original_invite = None - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() original_invite_id = prev_state_ids.get(key) if original_invite_id: original_invite = yield self.store.get_event( @@ -2673,7 +2673,7 @@ class FederationHandler(BaseHandler): signed = event.content["third_party_invite"]["signed"] token = signed["token"] - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() invite_event_id = prev_state_ids.get((EventTypes.ThirdPartyInvite, token)) invite_event = None diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index bf9add7fe..4ad752205 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -515,7 +515,7 @@ class EventCreationHandler(object): # federation as well as those created locally. As of room v3, aliases events # can be created by users that are not in the room, therefore we have to # tolerate them in event_auth.check(). - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() prev_event_id = prev_state_ids.get((EventTypes.Member, event.sender)) prev_event = ( yield self.store.get_event(prev_event_id, allow_none=True) @@ -665,7 +665,7 @@ class EventCreationHandler(object): If so, returns the version of the event in context. Otherwise, returns None. """ - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() prev_event_id = prev_state_ids.get((event.type, event.state_key)) if not prev_event_id: return @@ -914,7 +914,7 @@ class EventCreationHandler(object): def is_inviter_member_event(e): return e.type == EventTypes.Member and e.sender == event.sender - current_state_ids = yield context.get_current_state_ids(self.store) + current_state_ids = yield context.get_current_state_ids() state_to_include_ids = [ e_id @@ -967,7 +967,7 @@ class EventCreationHandler(object): if original_event.room_id != event.room_id: raise SynapseError(400, "Cannot redact event from a different room") - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() auth_events_ids = yield self.auth.compute_auth_events( event, prev_state_ids, for_verification=True ) @@ -989,7 +989,7 @@ class EventCreationHandler(object): event.internal_metadata.recheck_redaction = False if event.type == EventTypes.Create: - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() if prev_state_ids: raise AuthError(403, "Changing the room create event is forbidden") diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index d3a1a7b4a..89c9118b2 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -184,7 +184,7 @@ class RoomCreationHandler(BaseHandler): requester, tombstone_event, tombstone_context ) - old_room_state = yield tombstone_context.get_current_state_ids(self.store) + old_room_state = yield tombstone_context.get_current_state_ids() # update any aliases yield self._move_aliases_to_new_room( diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py index 7b7270fc6..44c5e3239 100644 --- a/synapse/handlers/room_member.py +++ b/synapse/handlers/room_member.py @@ -193,7 +193,7 @@ class RoomMemberHandler(object): requester, event, context, extra_users=[target], ratelimit=ratelimit ) - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() prev_member_event_id = prev_state_ids.get((EventTypes.Member, user_id), None) @@ -601,7 +601,7 @@ class RoomMemberHandler(object): if prev_event is not None: return - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() if event.membership == Membership.JOIN: if requester.is_guest: guest_can_join = yield self._can_guest_join(prev_state_ids) diff --git a/synapse/push/bulk_push_rule_evaluator.py b/synapse/push/bulk_push_rule_evaluator.py index 788178076..7d9f5a38d 100644 --- a/synapse/push/bulk_push_rule_evaluator.py +++ b/synapse/push/bulk_push_rule_evaluator.py @@ -116,7 +116,7 @@ class BulkPushRuleEvaluator(object): @defer.inlineCallbacks def _get_power_levels_and_sender_level(self, event, context): - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() pl_event_id = prev_state_ids.get(POWER_KEY) if pl_event_id: # fastpath: if there's a power level event, that's all we need, and @@ -304,7 +304,7 @@ class RulesForRoom(object): push_rules_delta_state_cache_metric.inc_hits() else: - current_state_ids = yield context.get_current_state_ids(self.store) + current_state_ids = yield context.get_current_state_ids() push_rules_delta_state_cache_metric.inc_misses() push_rules_state_size_counter.inc(len(current_state_ids)) diff --git a/synapse/replication/http/federation.py b/synapse/replication/http/federation.py index 9af4e7e17..49a325137 100644 --- a/synapse/replication/http/federation.py +++ b/synapse/replication/http/federation.py @@ -51,6 +51,7 @@ class ReplicationFederationSendEventsRestServlet(ReplicationEndpoint): super(ReplicationFederationSendEventsRestServlet, self).__init__(hs) self.store = hs.get_datastore() + self.storage = hs.get_storage() self.clock = hs.get_clock() self.federation_handler = hs.get_handlers().federation_handler @@ -100,7 +101,9 @@ class ReplicationFederationSendEventsRestServlet(ReplicationEndpoint): EventType = event_type_from_format_version(format_ver) event = EventType(event_dict, internal_metadata, rejected_reason) - context = EventContext.deserialize(self.store, event_payload["context"]) + context = EventContext.deserialize( + self.storage, event_payload["context"] + ) event_and_contexts.append((event, context)) diff --git a/synapse/replication/http/send_event.py b/synapse/replication/http/send_event.py index 9bafd60b1..84b92f16a 100644 --- a/synapse/replication/http/send_event.py +++ b/synapse/replication/http/send_event.py @@ -54,6 +54,7 @@ class ReplicationSendEventRestServlet(ReplicationEndpoint): self.event_creation_handler = hs.get_event_creation_handler() self.store = hs.get_datastore() + self.storage = hs.get_storage() self.clock = hs.get_clock() @staticmethod @@ -100,7 +101,7 @@ class ReplicationSendEventRestServlet(ReplicationEndpoint): event = EventType(event_dict, internal_metadata, rejected_reason) requester = Requester.deserialize(self.store, content["requester"]) - context = EventContext.deserialize(self.store, content["context"]) + context = EventContext.deserialize(self.storage, content["context"]) ratelimit = content["ratelimit"] extra_users = [UserID.from_string(u) for u in content["extra_users"]] diff --git a/synapse/storage/data_stores/main/push_rule.py b/synapse/storage/data_stores/main/push_rule.py index 5ba13aa97..e2673ae07 100644 --- a/synapse/storage/data_stores/main/push_rule.py +++ b/synapse/storage/data_stores/main/push_rule.py @@ -244,7 +244,7 @@ class PushRulesWorkerStore( # To do this we set the state_group to a new object as object() != object() state_group = object() - current_state_ids = yield context.get_current_state_ids(self) + current_state_ids = yield context.get_current_state_ids() result = yield self._bulk_get_push_rules_for_room( event.room_id, state_group, current_state_ids, event=event ) diff --git a/synapse/storage/data_stores/main/roommember.py b/synapse/storage/data_stores/main/roommember.py index 92e3b9c51..70ff5751b 100644 --- a/synapse/storage/data_stores/main/roommember.py +++ b/synapse/storage/data_stores/main/roommember.py @@ -477,7 +477,7 @@ class RoomMemberWorkerStore(EventsWorkerStore): # To do this we set the state_group to a new object as object() != object() state_group = object() - current_state_ids = yield context.get_current_state_ids(self) + current_state_ids = yield context.get_current_state_ids() result = yield self._get_joined_users_from_context( event.room_id, state_group, current_state_ids, event=event, context=context ) diff --git a/tests/test_state.py b/tests/test_state.py index 176535947..e0aae06be 100644 --- a/tests/test_state.py +++ b/tests/test_state.py @@ -209,7 +209,7 @@ class StateTestCase(unittest.TestCase): ctx_c = context_store["C"] ctx_d = context_store["D"] - prev_state_ids = yield ctx_d.get_prev_state_ids(self.store) + prev_state_ids = yield ctx_d.get_prev_state_ids() self.assertEqual(2, len(prev_state_ids)) self.assertEqual(ctx_c.state_group, ctx_d.state_group_before_event) @@ -253,7 +253,7 @@ class StateTestCase(unittest.TestCase): ctx_c = context_store["C"] ctx_d = context_store["D"] - prev_state_ids = yield ctx_d.get_prev_state_ids(self.store) + prev_state_ids = yield ctx_d.get_prev_state_ids() self.assertSetEqual( {"START", "A", "C"}, {e_id for e_id in prev_state_ids.values()} ) @@ -312,7 +312,7 @@ class StateTestCase(unittest.TestCase): ctx_c = context_store["C"] ctx_e = context_store["E"] - prev_state_ids = yield ctx_e.get_prev_state_ids(self.store) + prev_state_ids = yield ctx_e.get_prev_state_ids() self.assertSetEqual( {"START", "A", "B", "C"}, {e for e in prev_state_ids.values()} ) @@ -387,7 +387,7 @@ class StateTestCase(unittest.TestCase): ctx_b = context_store["B"] ctx_d = context_store["D"] - prev_state_ids = yield ctx_d.get_prev_state_ids(self.store) + prev_state_ids = yield ctx_d.get_prev_state_ids() self.assertSetEqual( {"A1", "A2", "A3", "A5", "B"}, {e for e in prev_state_ids.values()} ) @@ -419,10 +419,10 @@ class StateTestCase(unittest.TestCase): context = yield self.state.compute_event_context(event, old_state=old_state) - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() self.assertCountEqual((e.event_id for e in old_state), prev_state_ids.values()) - current_state_ids = yield context.get_current_state_ids(self.store) + current_state_ids = yield context.get_current_state_ids() self.assertCountEqual( (e.event_id for e in old_state), current_state_ids.values() ) @@ -442,10 +442,10 @@ class StateTestCase(unittest.TestCase): context = yield self.state.compute_event_context(event, old_state=old_state) - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() self.assertCountEqual((e.event_id for e in old_state), prev_state_ids.values()) - current_state_ids = yield context.get_current_state_ids(self.store) + current_state_ids = yield context.get_current_state_ids() self.assertCountEqual( (e.event_id for e in old_state + [event]), current_state_ids.values() ) @@ -479,7 +479,7 @@ class StateTestCase(unittest.TestCase): context = yield self.state.compute_event_context(event) - current_state_ids = yield context.get_current_state_ids(self.store) + current_state_ids = yield context.get_current_state_ids() self.assertEqual( set([e.event_id for e in old_state]), set(current_state_ids.values()) @@ -511,7 +511,7 @@ class StateTestCase(unittest.TestCase): context = yield self.state.compute_event_context(event) - prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = yield context.get_prev_state_ids() self.assertEqual( set([e.event_id for e in old_state]), set(prev_state_ids.values()) @@ -552,7 +552,7 @@ class StateTestCase(unittest.TestCase): event, prev_event_id1, old_state_1, prev_event_id2, old_state_2 ) - current_state_ids = yield context.get_current_state_ids(self.store) + current_state_ids = yield context.get_current_state_ids() self.assertEqual(len(current_state_ids), 6) @@ -594,7 +594,7 @@ class StateTestCase(unittest.TestCase): event, prev_event_id1, old_state_1, prev_event_id2, old_state_2 ) - current_state_ids = yield context.get_current_state_ids(self.store) + current_state_ids = yield context.get_current_state_ids() self.assertEqual(len(current_state_ids), 6) @@ -649,7 +649,7 @@ class StateTestCase(unittest.TestCase): event, prev_event_id1, old_state_1, prev_event_id2, old_state_2 ) - current_state_ids = yield context.get_current_state_ids(self.store) + current_state_ids = yield context.get_current_state_ids() self.assertEqual(old_state_2[3].event_id, current_state_ids[("test1", "1")]) @@ -677,7 +677,7 @@ class StateTestCase(unittest.TestCase): event, prev_event_id1, old_state_1, prev_event_id2, old_state_2 ) - current_state_ids = yield context.get_current_state_ids(self.store) + current_state_ids = yield context.get_current_state_ids() self.assertEqual(old_state_1[3].event_id, current_state_ids[("test1", "1")])