mirror of
https://github.com/element-hq/synapse.git
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296 lines
12 KiB
Python
296 lines
12 KiB
Python
# Copyright 2018 New Vector Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from typing import Optional
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from unittest.mock import MagicMock, Mock, patch
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from synapse.api.constants import EventTypes, JoinRules
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from synapse.api.errors import Codes, ResourceLimitError
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from synapse.api.filtering import Filtering
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from synapse.api.room_versions import RoomVersions
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from synapse.handlers.sync import SyncConfig, SyncResult
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from synapse.rest import admin
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from synapse.rest.client import knock, login, room
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from synapse.server import HomeServer
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from synapse.types import UserID, create_requester
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import tests.unittest
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import tests.utils
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from tests.test_utils import make_awaitable
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class SyncTestCase(tests.unittest.HomeserverTestCase):
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"""Tests Sync Handler."""
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servlets = [
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admin.register_servlets,
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knock.register_servlets,
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login.register_servlets,
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room.register_servlets,
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]
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def prepare(self, reactor, clock, hs: HomeServer):
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self.sync_handler = self.hs.get_sync_handler()
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self.store = self.hs.get_datastores().main
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# AuthBlocking reads from the hs' config on initialization. We need to
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# modify its config instead of the hs'
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self.auth_blocking = self.hs.get_auth()._auth_blocking
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def test_wait_for_sync_for_user_auth_blocking(self):
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user_id1 = "@user1:test"
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user_id2 = "@user2:test"
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sync_config = generate_sync_config(user_id1)
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requester = create_requester(user_id1)
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self.reactor.advance(100) # So we get not 0 time
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self.auth_blocking._limit_usage_by_mau = True
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self.auth_blocking._max_mau_value = 1
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# Check that the happy case does not throw errors
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self.get_success(self.store.upsert_monthly_active_user(user_id1))
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self.get_success(
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self.sync_handler.wait_for_sync_for_user(requester, sync_config)
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)
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# Test that global lock works
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self.auth_blocking._hs_disabled = True
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e = self.get_failure(
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self.sync_handler.wait_for_sync_for_user(requester, sync_config),
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ResourceLimitError,
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)
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self.assertEqual(e.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
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self.auth_blocking._hs_disabled = False
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sync_config = generate_sync_config(user_id2)
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requester = create_requester(user_id2)
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e = self.get_failure(
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self.sync_handler.wait_for_sync_for_user(requester, sync_config),
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ResourceLimitError,
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)
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self.assertEqual(e.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
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def test_unknown_room_version(self):
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"""
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A room with an unknown room version should not break sync (and should be excluded).
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"""
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inviter = self.register_user("creator", "pass", admin=True)
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inviter_tok = self.login("@creator:test", "pass")
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user = self.register_user("user", "pass")
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tok = self.login("user", "pass")
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# Do an initial sync on a different device.
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requester = create_requester(user)
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initial_result = self.get_success(
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self.sync_handler.wait_for_sync_for_user(
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requester, sync_config=generate_sync_config(user, device_id="dev")
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)
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)
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# Create a room as the user.
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joined_room = self.helper.create_room_as(user, tok=tok)
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# Invite the user to the room as someone else.
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invite_room = self.helper.create_room_as(inviter, tok=inviter_tok)
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self.helper.invite(invite_room, targ=user, tok=inviter_tok)
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knock_room = self.helper.create_room_as(
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inviter, room_version=RoomVersions.V7.identifier, tok=inviter_tok
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)
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self.helper.send_state(
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knock_room,
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EventTypes.JoinRules,
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{"join_rule": JoinRules.KNOCK},
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tok=inviter_tok,
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)
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channel = self.make_request(
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"POST",
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"/_matrix/client/r0/knock/%s" % (knock_room,),
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b"{}",
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tok,
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)
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self.assertEqual(200, channel.code, channel.result)
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# The rooms should appear in the sync response.
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result = self.get_success(
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self.sync_handler.wait_for_sync_for_user(
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requester, sync_config=generate_sync_config(user)
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)
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)
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self.assertIn(joined_room, [r.room_id for r in result.joined])
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self.assertIn(invite_room, [r.room_id for r in result.invited])
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self.assertIn(knock_room, [r.room_id for r in result.knocked])
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# Test a incremental sync (by providing a since_token).
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result = self.get_success(
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self.sync_handler.wait_for_sync_for_user(
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requester,
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sync_config=generate_sync_config(user, device_id="dev"),
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since_token=initial_result.next_batch,
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)
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)
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self.assertIn(joined_room, [r.room_id for r in result.joined])
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self.assertIn(invite_room, [r.room_id for r in result.invited])
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self.assertIn(knock_room, [r.room_id for r in result.knocked])
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# Poke the database and update the room version to an unknown one.
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for room_id in (joined_room, invite_room, knock_room):
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self.get_success(
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self.hs.get_datastores().main.db_pool.simple_update(
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"rooms",
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keyvalues={"room_id": room_id},
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updatevalues={"room_version": "unknown-room-version"},
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desc="updated-room-version",
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)
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)
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# Blow away caches (supported room versions can only change due to a restart).
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self.get_success(
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self.store.get_rooms_for_user_with_stream_ordering.invalidate_all()
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)
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self.store._get_event_cache.clear()
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# The rooms should be excluded from the sync response.
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# Get a new request key.
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result = self.get_success(
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self.sync_handler.wait_for_sync_for_user(
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requester, sync_config=generate_sync_config(user)
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)
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)
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self.assertNotIn(joined_room, [r.room_id for r in result.joined])
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self.assertNotIn(invite_room, [r.room_id for r in result.invited])
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self.assertNotIn(knock_room, [r.room_id for r in result.knocked])
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# The rooms should also not be in an incremental sync.
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result = self.get_success(
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self.sync_handler.wait_for_sync_for_user(
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requester,
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sync_config=generate_sync_config(user, device_id="dev"),
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since_token=initial_result.next_batch,
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)
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)
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self.assertNotIn(joined_room, [r.room_id for r in result.joined])
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self.assertNotIn(invite_room, [r.room_id for r in result.invited])
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self.assertNotIn(knock_room, [r.room_id for r in result.knocked])
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def test_ban_wins_race_with_join(self):
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"""Rooms shouldn't appear under "joined" if a join loses a race to a ban.
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A complicated edge case. Imagine the following scenario:
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* you attempt to join a room
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* racing with that is a ban which comes in over federation, which ends up with
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an earlier stream_ordering than the join.
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* you get a sync response with a sync token which is _after_ the ban, but before
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the join
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* now your join lands; it is a valid event because its `prev_event`s predate the
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ban, but will not make it into current_state_events (because bans win over
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joins in state res, essentially).
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* When we do a sync from the incremental sync, the only event in the timeline
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is your join ... and yet you aren't joined.
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The ban coming in over federation isn't crucial for this behaviour; the key
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requirements are:
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1. the homeserver generates a join event with prev_events that precede the ban
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(so that it passes the "are you banned" test)
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2. the join event has a stream_ordering after that of the ban.
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We use monkeypatching to artificially trigger condition (1).
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"""
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# A local user Alice creates a room.
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owner = self.register_user("alice", "password")
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owner_tok = self.login(owner, "password")
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room_id = self.helper.create_room_as(owner, is_public=True, tok=owner_tok)
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# Do a sync as Alice to get the latest event in the room.
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alice_sync_result: SyncResult = self.get_success(
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self.sync_handler.wait_for_sync_for_user(
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create_requester(owner), generate_sync_config(owner)
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)
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)
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self.assertEqual(len(alice_sync_result.joined), 1)
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self.assertEqual(alice_sync_result.joined[0].room_id, room_id)
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last_room_creation_event_id = (
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alice_sync_result.joined[0].timeline.events[-1].event_id
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)
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# Eve, a ne'er-do-well, registers.
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eve = self.register_user("eve", "password")
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eve_token = self.login(eve, "password")
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# Alice preemptively bans Eve.
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self.helper.ban(room_id, owner, eve, tok=owner_tok)
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# Eve syncs.
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eve_requester = create_requester(eve)
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eve_sync_config = generate_sync_config(eve)
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eve_sync_after_ban: SyncResult = self.get_success(
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self.sync_handler.wait_for_sync_for_user(eve_requester, eve_sync_config)
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)
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# Sanity check this sync result. We shouldn't be joined to the room.
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self.assertEqual(eve_sync_after_ban.joined, [])
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# Eve tries to join the room. We monkey patch the internal logic which selects
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# the prev_events used when creating the join event, such that the ban does not
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# precede the join.
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mocked_get_prev_events = patch.object(
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self.hs.get_datastores().main,
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"get_prev_events_for_room",
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new_callable=MagicMock,
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return_value=make_awaitable([last_room_creation_event_id]),
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)
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with mocked_get_prev_events:
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self.helper.join(room_id, eve, tok=eve_token)
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# Eve makes a second, incremental sync.
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eve_incremental_sync_after_join: SyncResult = self.get_success(
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self.sync_handler.wait_for_sync_for_user(
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eve_requester,
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eve_sync_config,
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since_token=eve_sync_after_ban.next_batch,
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)
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)
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# Eve should not see herself as joined to the room.
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self.assertEqual(eve_incremental_sync_after_join.joined, [])
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# If we did a third initial sync, we should _still_ see eve is not joined to the room.
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eve_initial_sync_after_join: SyncResult = self.get_success(
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self.sync_handler.wait_for_sync_for_user(
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eve_requester,
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eve_sync_config,
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since_token=None,
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)
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)
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self.assertEqual(eve_initial_sync_after_join.joined, [])
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_request_key = 0
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def generate_sync_config(
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user_id: str, device_id: Optional[str] = "device_id"
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) -> SyncConfig:
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"""Generate a sync config (with a unique request key)."""
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global _request_key
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_request_key += 1
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return SyncConfig(
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user=UserID.from_string(user_id),
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filter_collection=Filtering(Mock()).DEFAULT_FILTER_COLLECTION,
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is_guest=False,
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request_key=("request_key", _request_key),
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device_id=device_id,
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)
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