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e3a49f4784
Discovered after much in-depth investigation in #12281. Closes: #12281 Closes: #3305 Signed off by: Nick Mills-Barrett nick@beeper.com
301 lines
11 KiB
Python
301 lines
11 KiB
Python
import logging
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from typing import List, Tuple
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from unittest.mock import Mock, patch
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from twisted.test.proto_helpers import MemoryReactor
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from synapse.api.constants import EventContentFields, EventTypes
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from synapse.appservice import ApplicationService
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from synapse.rest import admin
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from synapse.rest.client import login, register, room, room_batch, sync
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from synapse.server import HomeServer
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from synapse.types import JsonDict, RoomStreamToken
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from synapse.util import Clock
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from tests import unittest
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logger = logging.getLogger(__name__)
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def _create_join_state_events_for_batch_send_request(
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virtual_user_ids: List[str],
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insert_time: int,
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) -> List[JsonDict]:
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return [
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{
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"type": EventTypes.Member,
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"sender": virtual_user_id,
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"origin_server_ts": insert_time,
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"content": {
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"membership": "join",
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"displayname": "display-name-for-%s" % (virtual_user_id,),
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},
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"state_key": virtual_user_id,
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}
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for virtual_user_id in virtual_user_ids
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]
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def _create_message_events_for_batch_send_request(
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virtual_user_id: str, insert_time: int, count: int
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) -> List[JsonDict]:
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return [
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{
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"type": EventTypes.Message,
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"sender": virtual_user_id,
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"origin_server_ts": insert_time,
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"content": {
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"msgtype": "m.text",
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"body": "Historical %d" % (i),
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EventContentFields.MSC2716_HISTORICAL: True,
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},
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}
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for i in range(count)
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]
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class RoomBatchTestCase(unittest.HomeserverTestCase):
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"""Test importing batches of historical messages."""
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servlets = [
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admin.register_servlets_for_client_rest_resource,
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room_batch.register_servlets,
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room.register_servlets,
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register.register_servlets,
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login.register_servlets,
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sync.register_servlets,
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]
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def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
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config = self.default_config()
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self.appservice = ApplicationService(
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token="i_am_an_app_service",
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hostname="test",
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id="1234",
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namespaces={"users": [{"regex": r"@as_user.*", "exclusive": True}]},
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# Note: this user does not have to match the regex above
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sender="@as_main:test",
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)
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mock_load_appservices = Mock(return_value=[self.appservice])
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with patch(
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"synapse.storage.databases.main.appservice.load_appservices",
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mock_load_appservices,
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):
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hs = self.setup_test_homeserver(config=config)
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return hs
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def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
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self.clock = clock
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self.storage = hs.get_storage()
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self.virtual_user_id, _ = self.register_appservice_user(
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"as_user_potato", self.appservice.token
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)
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def _create_test_room(self) -> Tuple[str, str, str, str]:
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room_id = self.helper.create_room_as(
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self.appservice.sender, tok=self.appservice.token
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)
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res_a = self.helper.send_event(
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room_id=room_id,
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type=EventTypes.Message,
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content={
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"msgtype": "m.text",
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"body": "A",
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},
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tok=self.appservice.token,
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)
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event_id_a = res_a["event_id"]
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res_b = self.helper.send_event(
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room_id=room_id,
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type=EventTypes.Message,
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content={
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"msgtype": "m.text",
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"body": "B",
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},
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tok=self.appservice.token,
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)
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event_id_b = res_b["event_id"]
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res_c = self.helper.send_event(
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room_id=room_id,
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type=EventTypes.Message,
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content={
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"msgtype": "m.text",
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"body": "C",
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},
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tok=self.appservice.token,
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)
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event_id_c = res_c["event_id"]
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return room_id, event_id_a, event_id_b, event_id_c
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@unittest.override_config({"experimental_features": {"msc2716_enabled": True}})
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def test_same_state_groups_for_whole_historical_batch(self) -> None:
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"""Make sure that when using the `/batch_send` endpoint to import a
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bunch of historical messages, it re-uses the same `state_group` across
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the whole batch. This is an easy optimization to make sure we're getting
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right because the state for the whole batch is contained in
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`state_events_at_start` and can be shared across everything.
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"""
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time_before_room = int(self.clock.time_msec())
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room_id, event_id_a, _, _ = self._create_test_room()
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channel = self.make_request(
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"POST",
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"/_matrix/client/unstable/org.matrix.msc2716/rooms/%s/batch_send?prev_event_id=%s"
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% (room_id, event_id_a),
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content={
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"events": _create_message_events_for_batch_send_request(
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self.virtual_user_id, time_before_room, 3
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),
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"state_events_at_start": _create_join_state_events_for_batch_send_request(
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[self.virtual_user_id], time_before_room
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),
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},
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access_token=self.appservice.token,
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)
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self.assertEqual(channel.code, 200, channel.result)
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# Get the historical event IDs that we just imported
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historical_event_ids = channel.json_body["event_ids"]
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self.assertEqual(len(historical_event_ids), 3)
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# Fetch the state_groups
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state_group_map = self.get_success(
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self.storage.state.get_state_groups_ids(room_id, historical_event_ids)
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)
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# We expect all of the historical events to be using the same state_group
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# so there should only be a single state_group here!
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self.assertEqual(
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len(state_group_map.keys()),
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1,
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"Expected a single state_group to be returned by saw state_groups=%s"
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% (state_group_map.keys(),),
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)
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@unittest.override_config({"experimental_features": {"msc2716_enabled": True}})
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def test_sync_while_batch_importing(self) -> None:
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"""
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Make sure that /sync correctly returns full room state when a user joins
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during ongoing batch backfilling.
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See: https://github.com/matrix-org/synapse/issues/12281
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"""
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# Create user who will be invited & join room
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user_id = self.register_user("beep", "test")
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user_tok = self.login("beep", "test")
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time_before_room = int(self.clock.time_msec())
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# Create a room with some events
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room_id, _, _, _ = self._create_test_room()
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# Invite the user
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self.helper.invite(
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room_id, src=self.appservice.sender, tok=self.appservice.token, targ=user_id
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)
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# Create another room, send a bunch of events to advance the stream token
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other_room_id = self.helper.create_room_as(
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self.appservice.sender, tok=self.appservice.token
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)
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for _ in range(5):
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self.helper.send_event(
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room_id=other_room_id,
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type=EventTypes.Message,
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content={"msgtype": "m.text", "body": "C"},
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tok=self.appservice.token,
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)
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# Join the room as the normal user
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self.helper.join(room_id, user_id, tok=user_tok)
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# Create an event to hang the historical batch from - In order to see
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# the failure case originally reported in #12281, the historical batch
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# must be hung from the most recent event in the room so the base
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# insertion event ends up with the highest `topogological_ordering`
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# (`depth`) in the room but will have a negative `stream_ordering`
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# because it's a `historical` event. Previously, when assembling the
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# `state` for the `/sync` response, the bugged logic would sort by
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# `topological_ordering` descending and pick up the base insertion
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# event because it has a negative `stream_ordering` below the given
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# pagination token. Now we properly sort by `stream_ordering`
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# descending which puts `historical` events with a negative
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# `stream_ordering` way at the bottom and aren't selected as expected.
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response = self.helper.send_event(
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room_id=room_id,
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type=EventTypes.Message,
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content={
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"msgtype": "m.text",
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"body": "C",
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},
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tok=self.appservice.token,
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)
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event_to_hang_id = response["event_id"]
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channel = self.make_request(
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"POST",
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"/_matrix/client/unstable/org.matrix.msc2716/rooms/%s/batch_send?prev_event_id=%s"
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% (room_id, event_to_hang_id),
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content={
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"events": _create_message_events_for_batch_send_request(
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self.virtual_user_id, time_before_room, 3
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),
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"state_events_at_start": _create_join_state_events_for_batch_send_request(
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[self.virtual_user_id], time_before_room
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),
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},
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access_token=self.appservice.token,
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)
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self.assertEqual(channel.code, 200, channel.result)
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# Now we need to find the invite + join events stream tokens so we can sync between
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main_store = self.hs.get_datastores().main
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events, next_key = self.get_success(
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main_store.get_recent_events_for_room(
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room_id,
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50,
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end_token=main_store.get_room_max_token(),
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),
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)
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invite_event_position = None
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for event in events:
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if (
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event.type == "m.room.member"
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and event.content["membership"] == "invite"
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):
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invite_event_position = self.get_success(
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main_store.get_topological_token_for_event(event.event_id)
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)
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break
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assert invite_event_position is not None, "No invite event found"
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# Remove the topological order from the token by re-creating w/stream only
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invite_event_position = RoomStreamToken(None, invite_event_position.stream)
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# Sync everything after this token
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since_token = self.get_success(invite_event_position.to_string(main_store))
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sync_response = self.make_request(
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"GET",
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f"/sync?since={since_token}",
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access_token=user_tok,
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)
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# Assert that, for this room, the user was considered to have joined and thus
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# receives the full state history
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state_event_types = [
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event["type"]
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for event in sync_response.json_body["rooms"]["join"][room_id]["state"][
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"events"
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]
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]
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assert (
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"m.room.create" in state_event_types
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), "Missing room full state in sync response"
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