mirror of
https://github.com/element-hq/synapse
synced 2024-07-08 12:54:07 +00:00
1531b214fc
The idea here is that if an instance persists an event via the replication HTTP API it can return before we receive that event over replication, which can lead to races where code assumes that persisting an event immediately updates various caches (e.g. current state of the room). Most of Synapse doesn't hit such races, so we don't do the waiting automagically, instead we do so where necessary to avoid unnecessary delays. We may decide to change our minds here if it turns out there are a lot of subtle races going on. People probably want to look at this commit by commit.
144 lines
4.9 KiB
Python
144 lines
4.9 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2019 Matrix.org Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from mock import Mock
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from twisted.internet import defer
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from synapse.api.errors import Codes, SynapseError
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from synapse.rest import admin
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from synapse.rest.client.v1 import login, room
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from synapse.types import UserID
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from tests import unittest
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class RoomComplexityTests(unittest.FederatingHomeserverTestCase):
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servlets = [
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admin.register_servlets,
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room.register_servlets,
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login.register_servlets,
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]
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def default_config(self):
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config = super().default_config()
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config["limit_remote_rooms"] = {"enabled": True, "complexity": 0.05}
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return config
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def test_complexity_simple(self):
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u1 = self.register_user("u1", "pass")
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u1_token = self.login("u1", "pass")
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room_1 = self.helper.create_room_as(u1, tok=u1_token)
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self.helper.send_state(
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room_1, event_type="m.room.topic", body={"topic": "foo"}, tok=u1_token
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)
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# Get the room complexity
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request, channel = self.make_request(
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"GET", "/_matrix/federation/unstable/rooms/%s/complexity" % (room_1,)
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)
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self.render(request)
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self.assertEquals(200, channel.code)
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complexity = channel.json_body["v1"]
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self.assertTrue(complexity > 0, complexity)
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# Artificially raise the complexity
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store = self.hs.get_datastore()
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store.get_current_state_event_counts = lambda x: defer.succeed(500 * 1.23)
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# Get the room complexity again -- make sure it's our artificial value
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request, channel = self.make_request(
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"GET", "/_matrix/federation/unstable/rooms/%s/complexity" % (room_1,)
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)
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self.render(request)
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self.assertEquals(200, channel.code)
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complexity = channel.json_body["v1"]
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self.assertEqual(complexity, 1.23)
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def test_join_too_large(self):
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u1 = self.register_user("u1", "pass")
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handler = self.hs.get_room_member_handler()
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fed_transport = self.hs.get_federation_transport_client()
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# Mock out some things, because we don't want to test the whole join
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fed_transport.client.get_json = Mock(return_value=defer.succeed({"v1": 9999}))
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handler.federation_handler.do_invite_join = Mock(
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return_value=defer.succeed(("", 1))
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)
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d = handler._remote_join(
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None,
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["other.example.com"],
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"roomid",
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UserID.from_string(u1),
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{"membership": "join"},
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)
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self.pump()
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# The request failed with a SynapseError saying the resource limit was
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# exceeded.
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f = self.get_failure(d, SynapseError)
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self.assertEqual(f.value.code, 400, f.value)
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self.assertEqual(f.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
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def test_join_too_large_once_joined(self):
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u1 = self.register_user("u1", "pass")
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u1_token = self.login("u1", "pass")
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# Ok, this might seem a bit weird -- I want to test that we actually
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# leave the room, but I don't want to simulate two servers. So, we make
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# a local room, which we say we're joining remotely, even if there's no
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# remote, because we mock that out. Then, we'll leave the (actually
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# local) room, which will be propagated over federation in a real
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# scenario.
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room_1 = self.helper.create_room_as(u1, tok=u1_token)
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handler = self.hs.get_room_member_handler()
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fed_transport = self.hs.get_federation_transport_client()
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# Mock out some things, because we don't want to test the whole join
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fed_transport.client.get_json = Mock(return_value=defer.succeed(None))
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handler.federation_handler.do_invite_join = Mock(
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return_value=defer.succeed(("", 1))
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)
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# Artificially raise the complexity
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self.hs.get_datastore().get_current_state_event_counts = lambda x: defer.succeed(
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600
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)
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d = handler._remote_join(
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None,
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["other.example.com"],
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room_1,
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UserID.from_string(u1),
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{"membership": "join"},
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)
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self.pump()
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# The request failed with a SynapseError saying the resource limit was
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# exceeded.
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f = self.get_failure(d, SynapseError)
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self.assertEqual(f.value.code, 400)
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self.assertEqual(f.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
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