589 lines
22 KiB
Python
589 lines
22 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 List, cast
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from unittest import TestCase
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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 AuthError, Codes, LimitExceededError, SynapseError
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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.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.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
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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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self.state_storage_controller = hs.get_storage_controllers().state
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self._event_auth_handler = hs.get_event_auth_handler()
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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(
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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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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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state_ids={
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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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)
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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_floating_outlier_membership_auth(self) -> None:
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"""
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As the local homeserver, check that we can properly process a federated
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event from the OTHER_SERVER with auth_events that include a floating
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membership event from the OTHER_SERVER.
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Regression test, see #10439.
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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(
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room_creator=user_id,
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is_public=True,
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tok=tok,
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extra_content={
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"preset": "public_chat",
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},
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)
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room_version = self.get_success(self.store.get_room_version(room_id))
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prev_event_ids = self.get_success(self.store.get_prev_events_for_room(room_id))
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(
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most_recent_prev_event_id,
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most_recent_prev_event_depth,
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) = self.get_success(self.store.get_max_depth_of(prev_event_ids))
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# mapping from (type, state_key) -> state_event_id
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assert most_recent_prev_event_id is not None
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prev_state_map = self.get_success(
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self.state_storage_controller.get_state_ids_for_event(
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most_recent_prev_event_id
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)
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)
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# List of state event ID's
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prev_state_ids = list(prev_state_map.values())
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auth_event_ids = prev_state_ids
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auth_events = list(
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self.get_success(self.store.get_events(auth_event_ids)).values()
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)
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# build a floating outlier member state event
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fake_prev_event_id = "$" + random_string(43)
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member_event_dict = {
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"type": EventTypes.Member,
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"content": {
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"membership": "join",
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},
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"state_key": OTHER_USER,
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"room_id": room_id,
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"sender": OTHER_USER,
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"depth": most_recent_prev_event_depth,
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"prev_events": [fake_prev_event_id],
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"origin_server_ts": self.clock.time_msec(),
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"signatures": {OTHER_SERVER: {"ed25519:key_version": "SomeSignatureHere"}},
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}
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builder = self.hs.get_event_builder_factory().for_room_version(
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room_version, member_event_dict
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)
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member_event = self.get_success(
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builder.build(
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prev_event_ids=member_event_dict["prev_events"],
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auth_event_ids=self._event_auth_handler.compute_auth_events(
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builder,
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prev_state_map,
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for_verification=False,
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),
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depth=member_event_dict["depth"],
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)
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)
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# Override the signature added from "test" homeserver that we created the event with
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member_event.signatures = member_event_dict["signatures"]
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# Add the new member_event to the StateMap
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updated_state_map = dict(prev_state_map)
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updated_state_map[
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(member_event.type, member_event.state_key)
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] = member_event.event_id
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auth_events.append(member_event)
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# build and send an event authed based on the member event
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message_event_dict = {
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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": OTHER_USER,
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"depth": most_recent_prev_event_depth,
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"prev_events": prev_event_ids.copy(),
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"origin_server_ts": self.clock.time_msec(),
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"signatures": {OTHER_SERVER: {"ed25519:key_version": "SomeSignatureHere"}},
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}
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builder = self.hs.get_event_builder_factory().for_room_version(
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room_version, message_event_dict
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)
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message_event = self.get_success(
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builder.build(
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prev_event_ids=message_event_dict["prev_events"],
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auth_event_ids=self._event_auth_handler.compute_auth_events(
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builder,
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updated_state_map,
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for_verification=False,
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),
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depth=message_event_dict["depth"],
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)
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)
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# Override the signature added from "test" homeserver that we created the event with
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message_event.signatures = message_event_dict["signatures"]
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# Stub the /event_auth response from the OTHER_SERVER
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async def get_event_auth(
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destination: str, room_id: str, event_id: str
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) -> List[EventBase]:
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return [
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event_from_pdu_json(ae.get_pdu_json(), room_version=room_version)
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for ae in auth_events
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]
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self.handler.federation_client.get_event_auth = get_event_auth # type: ignore[assignment]
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with LoggingContext("receive_pdu"):
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# Fake the OTHER_SERVER federating the message event over to our local homeserver
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d = run_in_background(
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self.hs.get_federation_event_handler().on_receive_pdu,
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OTHER_SERVER,
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message_event,
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)
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self.get_success(d)
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# Now try and get the events on our local homeserver
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stored_event = self.get_success(
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self.store.get_event(message_event.event_id, allow_none=True)
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)
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self.assertTrue(stored_event is not None)
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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():
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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()
|
|
self.get_failure(
|
|
self.handler.on_invite_request(
|
|
other_server,
|
|
event,
|
|
event.room_version,
|
|
),
|
|
exc=LimitExceededError,
|
|
)
|
|
|
|
def _build_and_send_join_event(
|
|
self, other_server: str, other_user: str, room_id: str
|
|
) -> EventBase:
|
|
join_event = self.get_success(
|
|
self.handler.on_make_join_request(other_server, room_id, other_user)
|
|
)
|
|
# the auth code requires that a signature exists, but doesn't check that
|
|
# signature... go figure.
|
|
join_event.signatures[other_server] = {"x": "y"}
|
|
with LoggingContext("send_join"):
|
|
d = run_in_background(
|
|
self.hs.get_federation_event_handler().on_send_membership_event,
|
|
other_server,
|
|
join_event,
|
|
)
|
|
self.get_success(d)
|
|
|
|
# sanity-check: the room should show that the new user is a member
|
|
r = self.get_success(self.store.get_partial_current_state_ids(room_id))
|
|
self.assertEqual(r[(EventTypes.Member, other_user)], join_event.event_id)
|
|
|
|
return join_event
|
|
|
|
|
|
class EventFromPduTestCase(TestCase):
|
|
def test_valid_json(self) -> None:
|
|
"""Valid JSON should be turned into an event."""
|
|
ev = event_from_pdu_json(
|
|
{
|
|
"type": EventTypes.Message,
|
|
"content": {"bool": True, "null": None, "int": 1, "str": "foobar"},
|
|
"room_id": "!room:test",
|
|
"sender": "@user:test",
|
|
"depth": 1,
|
|
"prev_events": [],
|
|
"auth_events": [],
|
|
"origin_server_ts": 1234,
|
|
},
|
|
RoomVersions.V6,
|
|
)
|
|
|
|
self.assertIsInstance(ev, EventBase)
|
|
|
|
def test_invalid_numbers(self) -> None:
|
|
"""Invalid values for an integer should be rejected, all floats should be rejected."""
|
|
for value in [
|
|
-(2**53),
|
|
2**53,
|
|
1.0,
|
|
float("inf"),
|
|
float("-inf"),
|
|
float("nan"),
|
|
]:
|
|
with self.assertRaises(SynapseError):
|
|
event_from_pdu_json(
|
|
{
|
|
"type": EventTypes.Message,
|
|
"content": {"foo": value},
|
|
"room_id": "!room:test",
|
|
"sender": "@user:test",
|
|
"depth": 1,
|
|
"prev_events": [],
|
|
"auth_events": [],
|
|
"origin_server_ts": 1234,
|
|
},
|
|
RoomVersions.V6,
|
|
)
|
|
|
|
def test_invalid_nested(self) -> None:
|
|
"""List and dictionaries are recursively searched."""
|
|
with self.assertRaises(SynapseError):
|
|
event_from_pdu_json(
|
|
{
|
|
"type": EventTypes.Message,
|
|
"content": {"foo": [{"bar": 2**56}]},
|
|
"room_id": "!room:test",
|
|
"sender": "@user:test",
|
|
"depth": 1,
|
|
"prev_events": [],
|
|
"auth_events": [],
|
|
"origin_server_ts": 1234,
|
|
},
|
|
RoomVersions.V6,
|
|
)
|