From 2623cec8746392067e781164e8ed4f2236b15bec Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Mon, 25 Jul 2016 16:12:16 +0100 Subject: [PATCH 1/5] Don't add rejections to the state_group, persist all rejections --- synapse/storage/events.py | 9 +++++---- synapse/storage/state.py | 2 +- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/synapse/storage/events.py b/synapse/storage/events.py index 6610549281..41c9b17d14 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -591,10 +591,11 @@ class EventsStore(SQLBaseStore): ], ) - if context.rejected: - self._store_rejections_txn( - txn, event.event_id, context.rejected - ) + for event, context in events_and_contexts: + if context.rejected: + self._store_rejections_txn( + txn, event.event_id, context.rejected + ) self._simple_insert_many_txn( txn, diff --git a/synapse/storage/state.py b/synapse/storage/state.py index 5b743db67a..cc1c7ec6a7 100644 --- a/synapse/storage/state.py +++ b/synapse/storage/state.py @@ -79,7 +79,7 @@ class StateStore(SQLBaseStore): state_events = dict(context.current_state) - if event.is_state(): + if event.is_state() and not context.rejected: state_events[(event.type, event.state_key)] = event state_group = context.new_state_group_id From 8f7f4cb92baa1eb8c772644e2567fe56d563b4b9 Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Mon, 25 Jul 2016 17:13:37 +0100 Subject: [PATCH 2/5] Don't add the events to forward extremities if the event is rejected --- synapse/storage/events.py | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/synapse/storage/events.py b/synapse/storage/events.py index 41c9b17d14..201a4455fa 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -498,8 +498,8 @@ class EventsStore(SQLBaseStore): sql, (False, event.event_id,) ) - - self._update_extremeties(txn, [event]) + if not context.rejected: + self._update_extremeties(txn, [event]) events_and_contexts = [ ec for ec in events_and_contexts if ec[0] not in to_remove @@ -512,7 +512,10 @@ class EventsStore(SQLBaseStore): self._handle_mult_prev_events( txn, - events=[event for event, _ in events_and_contexts], + events=[ + event for event, context in events_and_contexts + if not context.rejected + ], ) for event, _ in events_and_contexts: From 1b3c3e6d68bf503bf09e046ecf57bb652669e637 Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Mon, 25 Jul 2016 18:44:30 +0100 Subject: [PATCH 3/5] Only update the events and event_json tables for rejected events --- synapse/storage/events.py | 113 +++++++++++++++++++++----------------- synapse/storage/state.py | 2 +- 2 files changed, 63 insertions(+), 52 deletions(-) diff --git a/synapse/storage/events.py b/synapse/storage/events.py index 201a4455fa..c38a631081 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -407,21 +407,11 @@ class EventsStore(SQLBaseStore): event.room_id, event.internal_metadata.stream_ordering, ) - if not event.internal_metadata.is_outlier(): + if not event.internal_metadata.is_outlier() and not context.rejected: depth_updates[event.room_id] = max( event.depth, depth_updates.get(event.room_id, event.depth) ) - if context.push_actions: - self._set_push_actions_for_event_and_users_txn( - txn, event, context.push_actions - ) - - if event.type == EventTypes.Redaction and event.redacts is not None: - self._remove_push_actions_for_event_id_txn( - txn, event.room_id, event.redacts - ) - for room_id, depth in depth_updates.items(): self._update_min_depth_for_room_txn(txn, room_id, depth) @@ -431,6 +421,7 @@ class EventsStore(SQLBaseStore): ), [event.event_id for event, _ in events_and_contexts] ) + have_persisted = { event_id: outlier for event_id, outlier in txn.fetchall() @@ -442,6 +433,9 @@ class EventsStore(SQLBaseStore): # Handle the case of the list including the same event multiple # times. The tricky thing here is when they differ by whether # they are an outlier. + if context.rejected: + continue + if event.event_id in event_map: other = event_map[event.event_id] @@ -498,8 +492,8 @@ class EventsStore(SQLBaseStore): sql, (False, event.event_id,) ) - if not context.rejected: - self._update_extremeties(txn, [event]) + + self._update_extremeties(txn, [event]) events_and_contexts = [ ec for ec in events_and_contexts if ec[0] not in to_remove @@ -508,39 +502,8 @@ class EventsStore(SQLBaseStore): if not events_and_contexts: return - self._store_mult_state_groups_txn(txn, events_and_contexts) - - self._handle_mult_prev_events( - txn, - events=[ - event for event, context in events_and_contexts - if not context.rejected - ], - ) - - for event, _ in events_and_contexts: - if event.type == EventTypes.Name: - self._store_room_name_txn(txn, event) - elif event.type == EventTypes.Topic: - self._store_room_topic_txn(txn, event) - elif event.type == EventTypes.Message: - self._store_room_message_txn(txn, event) - elif event.type == EventTypes.Redaction: - self._store_redaction(txn, event) - elif event.type == EventTypes.RoomHistoryVisibility: - self._store_history_visibility_txn(txn, event) - elif event.type == EventTypes.GuestAccess: - self._store_guest_access_txn(txn, event) - - self._store_room_members_txn( - txn, - [ - event - for event, _ in events_and_contexts - if event.type == EventTypes.Member - ], - backfilled=backfilled, - ) + # From this point onwards the events are only events that we haven't + # seen before. def event_dict(event): return { @@ -594,11 +557,28 @@ class EventsStore(SQLBaseStore): ], ) + to_remove = set() for event, context in events_and_contexts: if context.rejected: self._store_rejections_txn( txn, event.event_id, context.rejected ) + to_remove.add(event.event_id) + + events_and_contexts = [ + ec for ec in events_and_contexts if ec[0].event_id not in to_remove + ] + + if not events_and_contexts: + return + + # From this point onwards the events are only ones that weren't rejected. + + for event, context in events_and_contexts: + if context.push_actions: + self._set_push_actions_for_event_and_users_txn( + txn, event, context.push_actions + ) self._simple_insert_many_txn( txn, @@ -614,6 +594,42 @@ class EventsStore(SQLBaseStore): ], ) + if event.type == EventTypes.Redaction and event.redacts is not None: + self._remove_push_actions_for_event_id_txn( + txn, event.room_id, event.redacts + ) + + self._store_mult_state_groups_txn(txn, events_and_contexts) + + self._handle_mult_prev_events( + txn, + events=[event for event, _ in events_and_contexts], + ) + + for event, _ in events_and_contexts: + if event.type == EventTypes.Name: + self._store_room_name_txn(txn, event) + elif event.type == EventTypes.Topic: + self._store_room_topic_txn(txn, event) + elif event.type == EventTypes.Message: + self._store_room_message_txn(txn, event) + elif event.type == EventTypes.Redaction: + self._store_redaction(txn, event) + elif event.type == EventTypes.RoomHistoryVisibility: + self._store_history_visibility_txn(txn, event) + elif event.type == EventTypes.GuestAccess: + self._store_guest_access_txn(txn, event) + + self._store_room_members_txn( + txn, + [ + event + for event, _ in events_and_contexts + if event.type == EventTypes.Member + ], + backfilled=backfilled, + ) + self._store_event_reference_hashes_txn( txn, [event for event, _ in events_and_contexts] ) @@ -670,11 +686,6 @@ class EventsStore(SQLBaseStore): # Outlier events shouldn't clobber the current state. continue - if context.rejected: - # If the event failed it's auth checks then it shouldn't - # clobbler the current state. - continue - txn.call_after( self._get_current_state_for_key.invalidate, (event.room_id, event.type, event.state_key,) diff --git a/synapse/storage/state.py b/synapse/storage/state.py index cc1c7ec6a7..5b743db67a 100644 --- a/synapse/storage/state.py +++ b/synapse/storage/state.py @@ -79,7 +79,7 @@ class StateStore(SQLBaseStore): state_events = dict(context.current_state) - if event.is_state() and not context.rejected: + if event.is_state(): state_events[(event.type, event.state_key)] = event state_group = context.new_state_group_id From efeb6176c169835465eeb6184ead940a89b93b4e Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Tue, 26 Jul 2016 10:49:52 +0100 Subject: [PATCH 4/5] Don't add rejected events if we've seen them befrore. Add some comments to explain what the code is doing mechanically --- synapse/storage/events.py | 53 +++++++++++++++++++++++++++++++++++---- 1 file changed, 48 insertions(+), 5 deletions(-) diff --git a/synapse/storage/events.py b/synapse/storage/events.py index c38a631081..25a2be2795 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -397,6 +397,12 @@ class EventsStore(SQLBaseStore): @log_function def _persist_events_txn(self, txn, events_and_contexts, backfilled): + """Insert some number of room events into the necessary database tables. + + Rejected events are only inserted into the events table, the events_json table, + and the rejections table. Things reading from those table will need to check + whether the event was rejected. + """ depth_updates = {} for event, context in events_and_contexts: # Remove the any existing cache entries for the event_ids @@ -427,15 +433,21 @@ class EventsStore(SQLBaseStore): for event_id, outlier in txn.fetchall() } + # Remove the events that we've seen before. event_map = {} to_remove = set() for event, context in events_and_contexts: + if context.rejected: + # If the event is rejected then we don't care if the event + # was an outlier or not. + if event.event_id in have_persisted: + # If we have already seen the event then ignore it. + to_remove.add(event) + continue + # Handle the case of the list including the same event multiple # times. The tricky thing here is when they differ by whether # they are an outlier. - if context.rejected: - continue - if event.event_id in event_map: other = event_map[event.event_id] @@ -457,6 +469,12 @@ class EventsStore(SQLBaseStore): outlier_persisted = have_persisted[event.event_id] if not event.internal_metadata.is_outlier() and outlier_persisted: + # We received a copy of an event that we had already stored as + # an outlier in the database. We now have some state at that + # so we need to update the state_groups table with that state. + + # insert into the state_group, state_groups_state and + # event_to_state_groups tables. self._store_mult_state_groups_txn(txn, ((event, context),)) metadata_json = encode_json( @@ -472,6 +490,8 @@ class EventsStore(SQLBaseStore): (metadata_json, event.event_id,) ) + # Add an entry to the ex_outlier_stream table to replicate the + # change in outlier status to our workers. stream_order = event.internal_metadata.stream_ordering state_group_id = context.state_group or context.new_state_group_id self._simple_insert_txn( @@ -493,6 +513,8 @@ class EventsStore(SQLBaseStore): (False, event.event_id,) ) + # Update the event_backward_extremities table now that this + # event isn't an outlier any more. self._update_extremeties(txn, [event]) events_and_contexts = [ @@ -557,24 +579,30 @@ class EventsStore(SQLBaseStore): ], ) + # Remove the rejected events from the list now that we've added them + # to the events table and the events_json table. to_remove = set() for event, context in events_and_contexts: if context.rejected: + # Insert the event_id into the rejections table self._store_rejections_txn( txn, event.event_id, context.rejected ) - to_remove.add(event.event_id) + to_remove.add(event) events_and_contexts = [ - ec for ec in events_and_contexts if ec[0].event_id not in to_remove + ec for ec in events_and_contexts if ec[0] not in to_remove ] if not events_and_contexts: + # Make sure we don't pass an empty list to functions that expect to + # be storing at least one element. return # From this point onwards the events are only ones that weren't rejected. for event, context in events_and_contexts: + # Insert all the push actions into the event_push_actions table. if context.push_actions: self._set_push_actions_for_event_and_users_txn( txn, event, context.push_actions @@ -595,12 +623,18 @@ class EventsStore(SQLBaseStore): ) if event.type == EventTypes.Redaction and event.redacts is not None: + # Remove the entries in the event_push_actions table for the + # redacted event. self._remove_push_actions_for_event_id_txn( txn, event.room_id, event.redacts ) + # Insert into the state_groups, state_groups_state, and + # event_to_state_groups tables. self._store_mult_state_groups_txn(txn, events_and_contexts) + # Update the event_forward_extremities, event_backward_extremities and + # event_edges tables. self._handle_mult_prev_events( txn, events=[event for event, _ in events_and_contexts], @@ -608,18 +642,25 @@ class EventsStore(SQLBaseStore): for event, _ in events_and_contexts: if event.type == EventTypes.Name: + # Insert into the room_names and event_search tables. self._store_room_name_txn(txn, event) elif event.type == EventTypes.Topic: + # Insert into the topics table and event_search table. self._store_room_topic_txn(txn, event) elif event.type == EventTypes.Message: + # Insert into the event_search table. self._store_room_message_txn(txn, event) elif event.type == EventTypes.Redaction: + # Insert into the redactions table. self._store_redaction(txn, event) elif event.type == EventTypes.RoomHistoryVisibility: + # Insert into the event_search table. self._store_history_visibility_txn(txn, event) elif event.type == EventTypes.GuestAccess: + # Insert into the event_search table. self._store_guest_access_txn(txn, event) + # Insert into the room_memberships table. self._store_room_members_txn( txn, [ @@ -630,6 +671,7 @@ class EventsStore(SQLBaseStore): backfilled=backfilled, ) + # Insert event_reference_hashes table. self._store_event_reference_hashes_txn( txn, [event for event, _ in events_and_contexts] ) @@ -674,6 +716,7 @@ class EventsStore(SQLBaseStore): ], ) + # Prefil the event cache self._add_to_cache(txn, events_and_contexts) if backfilled: From a6f06ce3e280cfa18f51748a7d4327001658db40 Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Tue, 26 Jul 2016 11:05:39 +0100 Subject: [PATCH 5/5] Fix how push_actions are redacted. --- synapse/storage/events.py | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/synapse/storage/events.py b/synapse/storage/events.py index 25a2be2795..c63ca36df6 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -522,6 +522,8 @@ class EventsStore(SQLBaseStore): ] if not events_and_contexts: + # Make sure we don't pass an empty list to functions that expect to + # be storing at least one element. return # From this point onwards the events are only events that we haven't @@ -608,6 +610,13 @@ class EventsStore(SQLBaseStore): txn, event, context.push_actions ) + if event.type == EventTypes.Redaction and event.redacts is not None: + # Remove the entries in the event_push_actions table for the + # redacted event. + self._remove_push_actions_for_event_id_txn( + txn, event.room_id, event.redacts + ) + self._simple_insert_many_txn( txn, table="event_auth", @@ -622,13 +631,6 @@ class EventsStore(SQLBaseStore): ], ) - if event.type == EventTypes.Redaction and event.redacts is not None: - # Remove the entries in the event_push_actions table for the - # redacted event. - self._remove_push_actions_for_event_id_txn( - txn, event.room_id, event.redacts - ) - # Insert into the state_groups, state_groups_state, and # event_to_state_groups tables. self._store_mult_state_groups_txn(txn, events_and_contexts) @@ -716,7 +718,7 @@ class EventsStore(SQLBaseStore): ], ) - # Prefil the event cache + # Prefill the event cache self._add_to_cache(txn, events_and_contexts) if backfilled: