533 lines
19 KiB
Python
533 lines
19 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
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from unittest import TestCase
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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
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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.types import create_requester
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from synapse.util.stringutils import random_string
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from tests import unittest
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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.HomeserverTestCase):
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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, clock):
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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_datastore()
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self.state_store = hs.get_storage().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):
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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):
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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.successResultOf(
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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": 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.successResultOf(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):
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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.successResultOf(
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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": 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.successResultOf(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):
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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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requester = create_requester(user_id)
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room_id = self.helper.create_room_as(room_creator=user_id, tok=tok)
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ev1 = self.helper.send(room_id, "first message", tok=tok)
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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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for _ in range(0, 8):
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event_handler = self.hs.get_event_creation_handler()
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event, context = self.get_success(
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event_handler.create_event(
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requester,
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{
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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": user_id,
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},
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prev_event_ids=[
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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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)
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)
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self.get_success(
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event_handler.handle_new_client_event(requester, event, context)
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)
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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):
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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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prev_state_map = self.get_success(
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self.state_store.get_state_ids_for_event(most_recent_prev_event_id)
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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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prev_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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prev_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(
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ae.get_pdu_json(), room_version=room_version, outlier=True
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)
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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
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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):
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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()
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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(self, other_server, other_user, room_id):
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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_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):
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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):
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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(
|
|
{
|
|
"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):
|
|
"""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,
|
|
)
|