mirror of
https://mau.dev/maunium/synapse.git
synced 2024-12-15 10:13:53 +01:00
70586aa63e
If we see stale extremities while persisting events, and notice that they don't change the result of state resolution, we drop them.
334 lines
13 KiB
Python
334 lines
13 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2020 The Matrix.org Foundation C.I.C.
|
|
#
|
|
# 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 synapse.api.constants import EventTypes, Membership
|
|
from synapse.api.room_versions import RoomVersions
|
|
from synapse.federation.federation_base import event_from_pdu_json
|
|
from synapse.rest import admin
|
|
from synapse.rest.client.v1 import login, room
|
|
|
|
from tests.unittest import HomeserverTestCase
|
|
|
|
|
|
class ExtremPruneTestCase(HomeserverTestCase):
|
|
servlets = [
|
|
admin.register_servlets,
|
|
room.register_servlets,
|
|
login.register_servlets,
|
|
]
|
|
|
|
def prepare(self, reactor, clock, homeserver):
|
|
self.state = self.hs.get_state_handler()
|
|
self.persistence = self.hs.get_storage().persistence
|
|
self.store = self.hs.get_datastore()
|
|
|
|
self.register_user("user", "pass")
|
|
self.token = self.login("user", "pass")
|
|
|
|
self.room_id = self.helper.create_room_as(
|
|
"user", room_version=RoomVersions.V6.identifier, tok=self.token
|
|
)
|
|
|
|
body = self.helper.send(self.room_id, body="Test", tok=self.token)
|
|
local_message_event_id = body["event_id"]
|
|
|
|
# Fudge a remote event and persist it. This will be the extremity before
|
|
# the gap.
|
|
self.remote_event_1 = event_from_pdu_json(
|
|
{
|
|
"type": EventTypes.Message,
|
|
"state_key": "@user:other",
|
|
"content": {},
|
|
"room_id": self.room_id,
|
|
"sender": "@user:other",
|
|
"depth": 5,
|
|
"prev_events": [local_message_event_id],
|
|
"auth_events": [],
|
|
"origin_server_ts": self.clock.time_msec(),
|
|
},
|
|
RoomVersions.V6,
|
|
)
|
|
|
|
self.persist_event(self.remote_event_1)
|
|
|
|
# Check that the current extremities is the remote event.
|
|
self.assert_extremities([self.remote_event_1.event_id])
|
|
|
|
def persist_event(self, event, state=None):
|
|
"""Persist the event, with optional state
|
|
"""
|
|
context = self.get_success(
|
|
self.state.compute_event_context(event, old_state=state)
|
|
)
|
|
self.get_success(self.persistence.persist_event(event, context))
|
|
|
|
def assert_extremities(self, expected_extremities):
|
|
"""Assert the current extremities for the room
|
|
"""
|
|
extremities = self.get_success(
|
|
self.store.get_prev_events_for_room(self.room_id)
|
|
)
|
|
self.assertCountEqual(extremities, expected_extremities)
|
|
|
|
def test_prune_gap(self):
|
|
"""Test that we drop extremities after a gap when we see an event from
|
|
the same domain.
|
|
"""
|
|
|
|
# Fudge a second event which points to an event we don't have. This is a
|
|
# state event so that the state changes (otherwise we won't prune the
|
|
# extremity as they'll have the same state group).
|
|
remote_event_2 = event_from_pdu_json(
|
|
{
|
|
"type": EventTypes.Member,
|
|
"state_key": "@user:other",
|
|
"content": {"membership": Membership.JOIN},
|
|
"room_id": self.room_id,
|
|
"sender": "@user:other",
|
|
"depth": 50,
|
|
"prev_events": ["$some_unknown_message"],
|
|
"auth_events": [],
|
|
"origin_server_ts": self.clock.time_msec(),
|
|
},
|
|
RoomVersions.V6,
|
|
)
|
|
|
|
state_before_gap = self.get_success(self.state.get_current_state(self.room_id))
|
|
|
|
self.persist_event(remote_event_2, state=state_before_gap.values())
|
|
|
|
# Check the new extremity is just the new remote event.
|
|
self.assert_extremities([remote_event_2.event_id])
|
|
|
|
def test_do_not_prune_gap_if_state_different(self):
|
|
"""Test that we don't prune extremities after a gap if the resolved
|
|
state is different.
|
|
"""
|
|
|
|
# Fudge a second event which points to an event we don't have.
|
|
remote_event_2 = event_from_pdu_json(
|
|
{
|
|
"type": EventTypes.Message,
|
|
"state_key": "@user:other",
|
|
"content": {},
|
|
"room_id": self.room_id,
|
|
"sender": "@user:other",
|
|
"depth": 10,
|
|
"prev_events": ["$some_unknown_message"],
|
|
"auth_events": [],
|
|
"origin_server_ts": self.clock.time_msec(),
|
|
},
|
|
RoomVersions.V6,
|
|
)
|
|
|
|
# Now we persist it with state with a dropped history visibility
|
|
# setting. The state resolution across the old and new event will then
|
|
# include it, and so the resolved state won't match the new state.
|
|
state_before_gap = dict(
|
|
self.get_success(self.state.get_current_state(self.room_id))
|
|
)
|
|
state_before_gap.pop(("m.room.history_visibility", ""))
|
|
|
|
context = self.get_success(
|
|
self.state.compute_event_context(
|
|
remote_event_2, old_state=state_before_gap.values()
|
|
)
|
|
)
|
|
|
|
self.get_success(self.persistence.persist_event(remote_event_2, context))
|
|
|
|
# Check that we haven't dropped the old extremity.
|
|
self.assert_extremities([self.remote_event_1.event_id, remote_event_2.event_id])
|
|
|
|
def test_prune_gap_if_old(self):
|
|
"""Test that we drop extremities after a gap when the previous extremity
|
|
is "old"
|
|
"""
|
|
|
|
# Advance the clock for many days to make the old extremity "old". We
|
|
# also set the depth to "lots".
|
|
self.reactor.advance(7 * 24 * 60 * 60)
|
|
|
|
# Fudge a second event which points to an event we don't have. This is a
|
|
# state event so that the state changes (otherwise we won't prune the
|
|
# extremity as they'll have the same state group).
|
|
remote_event_2 = event_from_pdu_json(
|
|
{
|
|
"type": EventTypes.Member,
|
|
"state_key": "@user:other2",
|
|
"content": {"membership": Membership.JOIN},
|
|
"room_id": self.room_id,
|
|
"sender": "@user:other2",
|
|
"depth": 10000,
|
|
"prev_events": ["$some_unknown_message"],
|
|
"auth_events": [],
|
|
"origin_server_ts": self.clock.time_msec(),
|
|
},
|
|
RoomVersions.V6,
|
|
)
|
|
|
|
state_before_gap = self.get_success(self.state.get_current_state(self.room_id))
|
|
|
|
self.persist_event(remote_event_2, state=state_before_gap.values())
|
|
|
|
# Check the new extremity is just the new remote event.
|
|
self.assert_extremities([remote_event_2.event_id])
|
|
|
|
def test_do_not_prune_gap_if_other_server(self):
|
|
"""Test that we do not drop extremities after a gap when we see an event
|
|
from a different domain.
|
|
"""
|
|
|
|
# Fudge a second event which points to an event we don't have. This is a
|
|
# state event so that the state changes (otherwise we won't prune the
|
|
# extremity as they'll have the same state group).
|
|
remote_event_2 = event_from_pdu_json(
|
|
{
|
|
"type": EventTypes.Member,
|
|
"state_key": "@user:other2",
|
|
"content": {"membership": Membership.JOIN},
|
|
"room_id": self.room_id,
|
|
"sender": "@user:other2",
|
|
"depth": 10,
|
|
"prev_events": ["$some_unknown_message"],
|
|
"auth_events": [],
|
|
"origin_server_ts": self.clock.time_msec(),
|
|
},
|
|
RoomVersions.V6,
|
|
)
|
|
|
|
state_before_gap = self.get_success(self.state.get_current_state(self.room_id))
|
|
|
|
self.persist_event(remote_event_2, state=state_before_gap.values())
|
|
|
|
# Check the new extremity is just the new remote event.
|
|
self.assert_extremities([self.remote_event_1.event_id, remote_event_2.event_id])
|
|
|
|
def test_prune_gap_if_dummy_remote(self):
|
|
"""Test that we drop extremities after a gap when the previous extremity
|
|
is a local dummy event and only points to remote events.
|
|
"""
|
|
|
|
body = self.helper.send_event(
|
|
self.room_id, type=EventTypes.Dummy, content={}, tok=self.token
|
|
)
|
|
local_message_event_id = body["event_id"]
|
|
self.assert_extremities([local_message_event_id])
|
|
|
|
# Advance the clock for many days to make the old extremity "old". We
|
|
# also set the depth to "lots".
|
|
self.reactor.advance(7 * 24 * 60 * 60)
|
|
|
|
# Fudge a second event which points to an event we don't have. This is a
|
|
# state event so that the state changes (otherwise we won't prune the
|
|
# extremity as they'll have the same state group).
|
|
remote_event_2 = event_from_pdu_json(
|
|
{
|
|
"type": EventTypes.Member,
|
|
"state_key": "@user:other2",
|
|
"content": {"membership": Membership.JOIN},
|
|
"room_id": self.room_id,
|
|
"sender": "@user:other2",
|
|
"depth": 10000,
|
|
"prev_events": ["$some_unknown_message"],
|
|
"auth_events": [],
|
|
"origin_server_ts": self.clock.time_msec(),
|
|
},
|
|
RoomVersions.V6,
|
|
)
|
|
|
|
state_before_gap = self.get_success(self.state.get_current_state(self.room_id))
|
|
|
|
self.persist_event(remote_event_2, state=state_before_gap.values())
|
|
|
|
# Check the new extremity is just the new remote event.
|
|
self.assert_extremities([remote_event_2.event_id])
|
|
|
|
def test_prune_gap_if_dummy_local(self):
|
|
"""Test that we don't drop extremities after a gap when the previous
|
|
extremity is a local dummy event and points to local events.
|
|
"""
|
|
|
|
body = self.helper.send(self.room_id, body="Test", tok=self.token)
|
|
|
|
body = self.helper.send_event(
|
|
self.room_id, type=EventTypes.Dummy, content={}, tok=self.token
|
|
)
|
|
local_message_event_id = body["event_id"]
|
|
self.assert_extremities([local_message_event_id])
|
|
|
|
# Advance the clock for many days to make the old extremity "old". We
|
|
# also set the depth to "lots".
|
|
self.reactor.advance(7 * 24 * 60 * 60)
|
|
|
|
# Fudge a second event which points to an event we don't have. This is a
|
|
# state event so that the state changes (otherwise we won't prune the
|
|
# extremity as they'll have the same state group).
|
|
remote_event_2 = event_from_pdu_json(
|
|
{
|
|
"type": EventTypes.Member,
|
|
"state_key": "@user:other2",
|
|
"content": {"membership": Membership.JOIN},
|
|
"room_id": self.room_id,
|
|
"sender": "@user:other2",
|
|
"depth": 10000,
|
|
"prev_events": ["$some_unknown_message"],
|
|
"auth_events": [],
|
|
"origin_server_ts": self.clock.time_msec(),
|
|
},
|
|
RoomVersions.V6,
|
|
)
|
|
|
|
state_before_gap = self.get_success(self.state.get_current_state(self.room_id))
|
|
|
|
self.persist_event(remote_event_2, state=state_before_gap.values())
|
|
|
|
# Check the new extremity is just the new remote event.
|
|
self.assert_extremities([remote_event_2.event_id, local_message_event_id])
|
|
|
|
def test_do_not_prune_gap_if_not_dummy(self):
|
|
"""Test that we do not drop extremities after a gap when the previous extremity
|
|
is not a dummy event.
|
|
"""
|
|
|
|
body = self.helper.send(self.room_id, body="test", tok=self.token)
|
|
local_message_event_id = body["event_id"]
|
|
self.assert_extremities([local_message_event_id])
|
|
|
|
# Fudge a second event which points to an event we don't have. This is a
|
|
# state event so that the state changes (otherwise we won't prune the
|
|
# extremity as they'll have the same state group).
|
|
remote_event_2 = event_from_pdu_json(
|
|
{
|
|
"type": EventTypes.Member,
|
|
"state_key": "@user:other2",
|
|
"content": {"membership": Membership.JOIN},
|
|
"room_id": self.room_id,
|
|
"sender": "@user:other2",
|
|
"depth": 10000,
|
|
"prev_events": ["$some_unknown_message"],
|
|
"auth_events": [],
|
|
"origin_server_ts": self.clock.time_msec(),
|
|
},
|
|
RoomVersions.V6,
|
|
)
|
|
|
|
state_before_gap = self.get_success(self.state.get_current_state(self.room_id))
|
|
|
|
self.persist_event(remote_event_2, state=state_before_gap.values())
|
|
|
|
# Check the new extremity is just the new remote event.
|
|
self.assert_extremities([local_message_event_id, remote_event_2.event_id])
|