forked from MirrorHub/synapse
681 lines
25 KiB
Python
681 lines
25 KiB
Python
# Copyright 2019 The Matrix.org Foundation C.I.C.
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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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import logging
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from typing import cast
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from unittest import TestCase
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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 EventTypes
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from synapse.api.errors import (
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AuthError,
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Codes,
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LimitExceededError,
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NotFoundError,
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SynapseError,
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)
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from synapse.api.room_versions import RoomVersions
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from synapse.events import EventBase, make_event_from_dict
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from synapse.federation.federation_base import event_from_pdu_json
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from synapse.federation.federation_client import SendJoinResult
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from synapse.logging.context import LoggingContext, run_in_background
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from synapse.rest import admin
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from synapse.rest.client import login, room
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from synapse.server import HomeServer
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from synapse.storage.databases.main.events_worker import EventCacheEntry
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from synapse.util import Clock
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from synapse.util.stringutils import random_string
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from tests import unittest
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from tests.test_utils import event_injection, make_awaitable
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logger = logging.getLogger(__name__)
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def generate_fake_event_id() -> str:
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return "$fake_" + random_string(43)
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class FederationTestCase(unittest.FederatingHomeserverTestCase):
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servlets = [
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admin.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 make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
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hs = self.setup_test_homeserver(federation_http_client=None)
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self.handler = hs.get_federation_handler()
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self.store = hs.get_datastores().main
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return hs
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def test_exchange_revoked_invite(self) -> None:
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user_id = self.register_user("kermit", "test")
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tok = self.login("kermit", "test")
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room_id = self.helper.create_room_as(room_creator=user_id, tok=tok)
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# Send a 3PID invite event with an empty body so it's considered as a revoked one.
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invite_token = "sometoken"
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self.helper.send_state(
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room_id=room_id,
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event_type=EventTypes.ThirdPartyInvite,
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state_key=invite_token,
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body={},
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tok=tok,
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)
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d = self.handler.on_exchange_third_party_invite_request(
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event_dict={
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"type": EventTypes.Member,
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"room_id": room_id,
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"sender": user_id,
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"state_key": "@someone:example.org",
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"content": {
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"membership": "invite",
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"third_party_invite": {
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"display_name": "alice",
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"signed": {
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"mxid": "@alice:localhost",
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"token": invite_token,
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"signatures": {
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"magic.forest": {
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"ed25519:3": "fQpGIW1Snz+pwLZu6sTy2aHy/DYWWTspTJRPyNp0PKkymfIsNffysMl6ObMMFdIJhk6g6pwlIqZ54rxo8SLmAg"
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}
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},
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},
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},
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},
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},
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)
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failure = self.get_failure(d, AuthError).value
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self.assertEqual(failure.code, 403, failure)
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self.assertEqual(failure.errcode, Codes.FORBIDDEN, failure)
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self.assertEqual(failure.msg, "You are not invited to this room.")
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def test_rejected_message_event_state(self) -> None:
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"""
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Check that we store the state group correctly for rejected non-state events.
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Regression test for #6289.
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"""
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OTHER_SERVER = "otherserver"
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OTHER_USER = "@otheruser:" + OTHER_SERVER
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# create the room
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user_id = self.register_user("kermit", "test")
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tok = self.login("kermit", "test")
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room_id = self.helper.create_room_as(room_creator=user_id, tok=tok)
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room_version = self.get_success(self.store.get_room_version(room_id))
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# pretend that another server has joined
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join_event = self._build_and_send_join_event(OTHER_SERVER, OTHER_USER, room_id)
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# check the state group
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sg = self.get_success(
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self.store._get_state_group_for_event(join_event.event_id)
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)
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# build and send an event which will be rejected
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ev = event_from_pdu_json(
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{
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"type": EventTypes.Message,
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"content": {},
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"room_id": room_id,
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"sender": "@yetanotheruser:" + OTHER_SERVER,
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"depth": cast(int, join_event["depth"]) + 1,
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"prev_events": [join_event.event_id],
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"auth_events": [],
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"origin_server_ts": self.clock.time_msec(),
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},
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room_version,
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)
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with LoggingContext("send_rejected"):
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d = run_in_background(
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self.hs.get_federation_event_handler().on_receive_pdu, OTHER_SERVER, ev
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)
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self.get_success(d)
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# that should have been rejected
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e = self.get_success(self.store.get_event(ev.event_id, allow_rejected=True))
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self.assertIsNotNone(e.rejected_reason)
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# ... and the state group should be the same as before
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sg2 = self.get_success(self.store._get_state_group_for_event(ev.event_id))
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self.assertEqual(sg, sg2)
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def test_rejected_state_event_state(self) -> None:
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"""
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Check that we store the state group correctly for rejected state events.
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Regression test for #6289.
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"""
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OTHER_SERVER = "otherserver"
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OTHER_USER = "@otheruser:" + OTHER_SERVER
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# create the room
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user_id = self.register_user("kermit", "test")
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tok = self.login("kermit", "test")
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room_id = self.helper.create_room_as(room_creator=user_id, tok=tok)
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room_version = self.get_success(self.store.get_room_version(room_id))
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# pretend that another server has joined
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join_event = self._build_and_send_join_event(OTHER_SERVER, OTHER_USER, room_id)
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# check the state group
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sg = self.get_success(
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self.store._get_state_group_for_event(join_event.event_id)
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)
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# build and send an event which will be rejected
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ev = event_from_pdu_json(
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{
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"type": "org.matrix.test",
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"state_key": "test_key",
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"content": {},
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"room_id": room_id,
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"sender": "@yetanotheruser:" + OTHER_SERVER,
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"depth": cast(int, join_event["depth"]) + 1,
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"prev_events": [join_event.event_id],
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"auth_events": [],
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"origin_server_ts": self.clock.time_msec(),
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},
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room_version,
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)
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with LoggingContext("send_rejected"):
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d = run_in_background(
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self.hs.get_federation_event_handler().on_receive_pdu, OTHER_SERVER, ev
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)
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self.get_success(d)
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# that should have been rejected
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e = self.get_success(self.store.get_event(ev.event_id, allow_rejected=True))
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self.assertIsNotNone(e.rejected_reason)
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# ... and the state group should be the same as before
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sg2 = self.get_success(self.store._get_state_group_for_event(ev.event_id))
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self.assertEqual(sg, sg2)
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def test_backfill_with_many_backward_extremities(self) -> None:
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"""
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Check that we can backfill with many backward extremities.
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The goal is to make sure that when we only use a portion
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of backwards extremities(the magic number is more than 5),
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no errors are thrown.
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Regression test, see #11027
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"""
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# create the room
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user_id = self.register_user("kermit", "test")
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tok = self.login("kermit", "test")
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room_id = self.helper.create_room_as(room_creator=user_id, tok=tok)
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room_version = self.get_success(self.store.get_room_version(room_id))
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# we need a user on the remote server to be a member, so that we can send
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# extremity-causing events.
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remote_server_user_id = f"@user:{self.OTHER_SERVER_NAME}"
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self.get_success(
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event_injection.inject_member_event(
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self.hs, room_id, remote_server_user_id, "join"
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)
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)
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send_result = self.helper.send(room_id, "first message", tok=tok)
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ev1 = self.get_success(
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self.store.get_event(send_result["event_id"], allow_none=False)
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)
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current_state = self.get_success(
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self.store.get_events_as_list(
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(
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self.get_success(self.store.get_partial_current_state_ids(room_id))
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).values()
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)
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)
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# Create "many" backward extremities. The magic number we're trying to
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# create more than is 5 which corresponds to the number of backward
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# extremities we slice off in `_maybe_backfill_inner`
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federation_event_handler = self.hs.get_federation_event_handler()
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auth_events = [
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ev
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for ev in current_state
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if (ev.type, ev.state_key)
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in {("m.room.create", ""), ("m.room.member", remote_server_user_id)}
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]
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for _ in range(0, 8):
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event = make_event_from_dict(
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self.add_hashes_and_signatures_from_other_server(
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{
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"origin_server_ts": 1,
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"type": "m.room.message",
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"content": {
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"msgtype": "m.text",
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"body": "message connected to fake event",
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},
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"room_id": room_id,
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"sender": remote_server_user_id,
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"prev_events": [
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ev1.event_id,
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# We're creating an backward extremity each time thanks
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# to this fake event
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generate_fake_event_id(),
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],
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"auth_events": [ev.event_id for ev in auth_events],
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"depth": ev1.depth + 1,
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},
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room_version,
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),
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room_version,
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)
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# we poke this directly into _process_received_pdu, to avoid the
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# federation handler wanting to backfill the fake event.
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state_handler = self.hs.get_state_handler()
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context = self.get_success(
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state_handler.compute_event_context(
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event,
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state_ids_before_event={
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(e.type, e.state_key): e.event_id for e in current_state
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},
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partial_state=False,
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)
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)
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self.get_success(
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federation_event_handler._process_received_pdu(
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self.OTHER_SERVER_NAME,
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event,
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context,
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)
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)
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# we should now have 8 backwards extremities.
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backwards_extremities = self.get_success(
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self.store.db_pool.simple_select_list(
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"event_backward_extremities",
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keyvalues={"room_id": room_id},
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retcols=["event_id"],
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)
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)
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self.assertEqual(len(backwards_extremities), 8)
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current_depth = 1
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limit = 100
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with LoggingContext("receive_pdu"):
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# Make sure backfill still works
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d = run_in_background(
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self.hs.get_federation_handler().maybe_backfill,
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room_id,
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current_depth,
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limit,
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)
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self.get_success(d)
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def test_backfill_ignores_known_events(self) -> None:
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"""
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Tests that events that we already know about are ignored when backfilling.
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"""
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# Set up users
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user_id = self.register_user("kermit", "test")
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tok = self.login("kermit", "test")
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other_server = "otherserver"
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other_user = "@otheruser:" + other_server
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# Create a room to backfill events into
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room_id = self.helper.create_room_as(room_creator=user_id, tok=tok)
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room_version = self.get_success(self.store.get_room_version(room_id))
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# Build an event to backfill
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event = event_from_pdu_json(
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{
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"type": EventTypes.Message,
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"content": {"body": "hello world", "msgtype": "m.text"},
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"room_id": room_id,
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"sender": other_user,
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"depth": 32,
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"prev_events": [],
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"auth_events": [],
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"origin_server_ts": self.clock.time_msec(),
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},
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room_version,
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)
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# Ensure the event is not already in the DB
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self.get_failure(
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self.store.get_event(event.event_id),
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NotFoundError,
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)
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# Backfill the event and check that it has entered the DB.
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# We mock out the FederationClient.backfill method, to pretend that a remote
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# server has returned our fake event.
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federation_client_backfill_mock = Mock(return_value=make_awaitable([event]))
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self.hs.get_federation_client().backfill = federation_client_backfill_mock
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# We also mock the persist method with a side effect of itself. This allows us
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# to track when it has been called while preserving its function.
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persist_events_and_notify_mock = Mock(
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side_effect=self.hs.get_federation_event_handler().persist_events_and_notify
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)
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self.hs.get_federation_event_handler().persist_events_and_notify = (
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persist_events_and_notify_mock
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)
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# Small side-tangent. We populate the event cache with the event, even though
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# it is not yet in the DB. This is an invalid scenario that can currently occur
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# due to not properly invalidating the event cache.
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# See https://github.com/matrix-org/synapse/issues/13476.
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#
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# As a result, backfill should not rely on the event cache to check whether
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# we already have an event in the DB.
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# TODO: Remove this bit when the event cache is properly invalidated.
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cache_entry = EventCacheEntry(
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event=event,
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redacted_event=None,
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)
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self.store._get_event_cache.set_local((event.event_id,), cache_entry)
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# We now call FederationEventHandler.backfill (a separate method) to trigger
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# a backfill request. It should receive the fake event.
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self.get_success(
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self.hs.get_federation_event_handler().backfill(
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other_user,
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room_id,
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limit=10,
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extremities=[],
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)
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)
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# Check that our fake event was persisted.
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persist_events_and_notify_mock.assert_called_once()
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persist_events_and_notify_mock.reset_mock()
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# Now we repeat the backfill, having the homeserver receive the fake event
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# again.
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self.get_success(
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self.hs.get_federation_event_handler().backfill(
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other_user,
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room_id,
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limit=10,
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extremities=[],
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),
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)
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# This time, we expect no event persistence to have occurred, as we already
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# have this event.
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persist_events_and_notify_mock.assert_not_called()
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@unittest.override_config(
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{"rc_invites": {"per_user": {"per_second": 0.5, "burst_count": 3}}}
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)
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def test_invite_by_user_ratelimit(self) -> None:
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"""Tests that invites from federation to a particular user are
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actually rate-limited.
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"""
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other_server = "otherserver"
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other_user = "@otheruser:" + other_server
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# create the room
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user_id = self.register_user("kermit", "test")
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tok = self.login("kermit", "test")
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def create_invite() -> EventBase:
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room_id = self.helper.create_room_as(room_creator=user_id, tok=tok)
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room_version = self.get_success(self.store.get_room_version(room_id))
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return event_from_pdu_json(
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{
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"type": EventTypes.Member,
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"content": {"membership": "invite"},
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"room_id": room_id,
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"sender": other_user,
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"state_key": "@user:test",
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"depth": 32,
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"prev_events": [],
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"auth_events": [],
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"origin_server_ts": self.clock.time_msec(),
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},
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room_version,
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)
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for _ in range(3):
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event = create_invite()
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self.get_success(
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self.handler.on_invite_request(
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other_server,
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event,
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event.room_version,
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)
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)
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event = create_invite()
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self.get_failure(
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self.handler.on_invite_request(
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other_server,
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event,
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event.room_version,
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),
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exc=LimitExceededError,
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)
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def _build_and_send_join_event(
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self, other_server: str, other_user: str, room_id: str
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) -> EventBase:
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join_event = self.get_success(
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self.handler.on_make_join_request(other_server, room_id, other_user)
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)
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# the auth code requires that a signature exists, but doesn't check that
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# signature... go figure.
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join_event.signatures[other_server] = {"x": "y"}
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with LoggingContext("send_join"):
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d = run_in_background(
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self.hs.get_federation_event_handler().on_send_membership_event,
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other_server,
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join_event,
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)
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self.get_success(d)
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# sanity-check: the room should show that the new user is a member
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r = self.get_success(self.store.get_partial_current_state_ids(room_id))
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self.assertEqual(r[(EventTypes.Member, other_user)], join_event.event_id)
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return join_event
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class EventFromPduTestCase(TestCase):
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def test_valid_json(self) -> None:
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"""Valid JSON should be turned into an event."""
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ev = event_from_pdu_json(
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{
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"type": EventTypes.Message,
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"content": {"bool": True, "null": None, "int": 1, "str": "foobar"},
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"room_id": "!room:test",
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"sender": "@user:test",
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"depth": 1,
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"prev_events": [],
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"auth_events": [],
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"origin_server_ts": 1234,
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},
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RoomVersions.V6,
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)
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self.assertIsInstance(ev, EventBase)
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def test_invalid_numbers(self) -> None:
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"""Invalid values for an integer should be rejected, all floats should be rejected."""
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for value in [
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-(2**53),
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2**53,
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1.0,
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float("inf"),
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float("-inf"),
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float("nan"),
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]:
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with self.assertRaises(SynapseError):
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event_from_pdu_json(
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{
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"type": EventTypes.Message,
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"content": {"foo": value},
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"room_id": "!room:test",
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"sender": "@user:test",
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"depth": 1,
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"prev_events": [],
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"auth_events": [],
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"origin_server_ts": 1234,
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},
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RoomVersions.V6,
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)
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def test_invalid_nested(self) -> None:
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"""List and dictionaries are recursively searched."""
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with self.assertRaises(SynapseError):
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event_from_pdu_json(
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{
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"type": EventTypes.Message,
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"content": {"foo": [{"bar": 2**56}]},
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"room_id": "!room:test",
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"sender": "@user:test",
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"depth": 1,
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"prev_events": [],
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"auth_events": [],
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"origin_server_ts": 1234,
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},
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RoomVersions.V6,
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)
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class PartialJoinTestCase(unittest.FederatingHomeserverTestCase):
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def test_failed_partial_join_is_clean(self) -> None:
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"""
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Tests that, when failing to partial-join a room, we don't get stuck with
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a partial-state flag on a room.
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"""
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fed_handler = self.hs.get_federation_handler()
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fed_client = fed_handler.federation_client
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room_id = "!room:example.com"
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membership_event = make_event_from_dict(
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{
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"room_id": room_id,
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"type": "m.room.member",
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"sender": "@alice:test",
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"state_key": "@alice:test",
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"content": {"membership": "join"},
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},
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RoomVersions.V10,
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|
)
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mock_make_membership_event = Mock(
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return_value=make_awaitable(
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(
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"example.com",
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membership_event,
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RoomVersions.V10,
|
|
)
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)
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)
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EVENT_CREATE = make_event_from_dict(
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{
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"room_id": room_id,
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"type": "m.room.create",
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"sender": "@kristina:example.com",
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"state_key": "",
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"depth": 0,
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"content": {"creator": "@kristina:example.com", "room_version": "10"},
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"auth_events": [],
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"origin_server_ts": 1,
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},
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room_version=RoomVersions.V10,
|
|
)
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|
EVENT_CREATOR_MEMBERSHIP = make_event_from_dict(
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{
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|
"room_id": room_id,
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"type": "m.room.member",
|
|
"sender": "@kristina:example.com",
|
|
"state_key": "@kristina:example.com",
|
|
"content": {"membership": "join"},
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|
"depth": 1,
|
|
"prev_events": [EVENT_CREATE.event_id],
|
|
"auth_events": [EVENT_CREATE.event_id],
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|
"origin_server_ts": 1,
|
|
},
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|
room_version=RoomVersions.V10,
|
|
)
|
|
EVENT_INVITATION_MEMBERSHIP = make_event_from_dict(
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|
{
|
|
"room_id": room_id,
|
|
"type": "m.room.member",
|
|
"sender": "@kristina:example.com",
|
|
"state_key": "@alice:test",
|
|
"content": {"membership": "invite"},
|
|
"depth": 2,
|
|
"prev_events": [EVENT_CREATOR_MEMBERSHIP.event_id],
|
|
"auth_events": [
|
|
EVENT_CREATE.event_id,
|
|
EVENT_CREATOR_MEMBERSHIP.event_id,
|
|
],
|
|
"origin_server_ts": 1,
|
|
},
|
|
room_version=RoomVersions.V10,
|
|
)
|
|
mock_send_join = Mock(
|
|
return_value=make_awaitable(
|
|
SendJoinResult(
|
|
membership_event,
|
|
"example.com",
|
|
state=[
|
|
EVENT_CREATE,
|
|
EVENT_CREATOR_MEMBERSHIP,
|
|
EVENT_INVITATION_MEMBERSHIP,
|
|
],
|
|
auth_chain=[
|
|
EVENT_CREATE,
|
|
EVENT_CREATOR_MEMBERSHIP,
|
|
EVENT_INVITATION_MEMBERSHIP,
|
|
],
|
|
partial_state=True,
|
|
servers_in_room=["example.com"],
|
|
)
|
|
)
|
|
)
|
|
|
|
with patch.object(
|
|
fed_client, "make_membership_event", mock_make_membership_event
|
|
), patch.object(fed_client, "send_join", mock_send_join):
|
|
# Join and check that our join event is rejected
|
|
# (The join event is rejected because it doesn't have any signatures)
|
|
join_exc = self.get_failure(
|
|
fed_handler.do_invite_join(["example.com"], room_id, "@alice:test", {}),
|
|
SynapseError,
|
|
)
|
|
self.assertIn("Join event was rejected", str(join_exc))
|
|
|
|
store = self.hs.get_datastores().main
|
|
|
|
# Check that we don't have a left-over partial_state entry.
|
|
self.assertFalse(
|
|
self.get_success(store.is_partial_state_room(room_id)),
|
|
f"Stale partial-stated room flag left over for {room_id} after a"
|
|
f" failed do_invite_join!",
|
|
)
|