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synapse/tests/events/test_auto_accept_invites.py

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#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright 2021 The Matrix.org Foundation C.I.C
# Copyright (C) 2024 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
import asyncio
from asyncio import Future
from http import HTTPStatus
from typing import Any, Awaitable, Dict, List, Optional, Tuple, TypeVar, cast
from unittest.mock import Mock
import attr
from parameterized import parameterized
from twisted.test.proto_helpers import MemoryReactor
from synapse.api.constants import EventTypes
from synapse.api.errors import SynapseError
from synapse.config.auto_accept_invites import AutoAcceptInvitesConfig
from synapse.events.auto_accept_invites import InviteAutoAccepter
from synapse.federation.federation_base import event_from_pdu_json
from synapse.handlers.sync import JoinedSyncResult, SyncRequestKey, SyncVersion
from synapse.module_api import ModuleApi
from synapse.rest import admin
from synapse.rest.client import login, room
from synapse.server import HomeServer
from synapse.types import StreamToken, create_requester
from synapse.util import Clock
from tests.handlers.test_sync import generate_sync_config
from tests.unittest import (
FederatingHomeserverTestCase,
HomeserverTestCase,
TestCase,
override_config,
)
class AutoAcceptInvitesTestCase(FederatingHomeserverTestCase):
"""
Integration test cases for auto-accepting invites.
"""
servlets = [
admin.register_servlets,
login.register_servlets,
room.register_servlets,
]
def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
hs = self.setup_test_homeserver()
self.handler = hs.get_federation_handler()
self.store = hs.get_datastores().main
return hs
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
self.sync_handler = self.hs.get_sync_handler()
self.module_api = hs.get_module_api()
@parameterized.expand(
[
[False],
[True],
]
)
@override_config(
{
"auto_accept_invites": {
"enabled": True,
},
}
)
def test_auto_accept_invites(self, direct_room: bool) -> None:
"""Test that a user automatically joins a room when invited, if the
module is enabled.
"""
# A local user who sends an invite
inviting_user_id = self.register_user("inviter", "pass")
inviting_user_tok = self.login("inviter", "pass")
# A local user who receives an invite
invited_user_id = self.register_user("invitee", "pass")
self.login("invitee", "pass")
# Create a room and send an invite to the other user
room_id = self.helper.create_room_as(
inviting_user_id,
is_public=False,
tok=inviting_user_tok,
)
self.helper.invite(
room_id,
inviting_user_id,
invited_user_id,
tok=inviting_user_tok,
extra_data={"is_direct": direct_room},
)
# Check that the invite receiving user has automatically joined the room when syncing
join_updates, _ = sync_join(self, invited_user_id)
self.assertEqual(len(join_updates), 1)
join_update: JoinedSyncResult = join_updates[0]
self.assertEqual(join_update.room_id, room_id)
@override_config(
{
"auto_accept_invites": {
"enabled": False,
},
}
)
def test_module_not_enabled(self) -> None:
"""Test that a user does not automatically join a room when invited,
if the module is not enabled.
"""
# A local user who sends an invite
inviting_user_id = self.register_user("inviter", "pass")
inviting_user_tok = self.login("inviter", "pass")
# A local user who receives an invite
invited_user_id = self.register_user("invitee", "pass")
self.login("invitee", "pass")
# Create a room and send an invite to the other user
room_id = self.helper.create_room_as(
inviting_user_id, is_public=False, tok=inviting_user_tok
)
self.helper.invite(
room_id,
inviting_user_id,
invited_user_id,
tok=inviting_user_tok,
)
# Check that the invite receiving user has not automatically joined the room when syncing
join_updates, _ = sync_join(self, invited_user_id)
self.assertEqual(len(join_updates), 0)
@override_config(
{
"auto_accept_invites": {
"enabled": True,
},
}
)
def test_invite_from_remote_user(self) -> None:
"""Test that an invite from a remote user results in the invited user
automatically joining the room.
"""
# A remote user who sends the invite
remote_server = "otherserver"
remote_user = "@otheruser:" + remote_server
# A local user who creates the room
creator_user_id = self.register_user("creator", "pass")
creator_user_tok = self.login("creator", "pass")
# A local user who receives an invite
invited_user_id = self.register_user("invitee", "pass")
self.login("invitee", "pass")
room_id = self.helper.create_room_as(
room_creator=creator_user_id, tok=creator_user_tok
)
room_version = self.get_success(self.store.get_room_version(room_id))
invite_event = event_from_pdu_json(
{
"type": EventTypes.Member,
"content": {"membership": "invite"},
"room_id": room_id,
"sender": remote_user,
"state_key": invited_user_id,
"depth": 32,
"prev_events": [],
"auth_events": [],
"origin_server_ts": self.clock.time_msec(),
},
room_version,
)
self.get_success(
self.handler.on_invite_request(
remote_server,
invite_event,
invite_event.room_version,
)
)
# Check that the invite receiving user has automatically joined the room when syncing
join_updates, _ = sync_join(self, invited_user_id)
self.assertEqual(len(join_updates), 1)
join_update: JoinedSyncResult = join_updates[0]
self.assertEqual(join_update.room_id, room_id)
@parameterized.expand(
[
[False, False],
[True, True],
]
)
@override_config(
{
"auto_accept_invites": {
"enabled": True,
"only_for_direct_messages": True,
},
}
)
def test_accept_invite_direct_message(
self,
direct_room: bool,
expect_auto_join: bool,
) -> None:
"""Tests that, if the module is configured to only accept DM invites, invites to DM rooms are still
automatically accepted. Otherwise they are rejected.
"""
# A local user who sends an invite
inviting_user_id = self.register_user("inviter", "pass")
inviting_user_tok = self.login("inviter", "pass")
# A local user who receives an invite
invited_user_id = self.register_user("invitee", "pass")
self.login("invitee", "pass")
# Create a room and send an invite to the other user
room_id = self.helper.create_room_as(
inviting_user_id,
is_public=False,
tok=inviting_user_tok,
)
self.helper.invite(
room_id,
inviting_user_id,
invited_user_id,
tok=inviting_user_tok,
extra_data={"is_direct": direct_room},
)
if expect_auto_join:
# Check that the invite receiving user has automatically joined the room when syncing
join_updates, _ = sync_join(self, invited_user_id)
self.assertEqual(len(join_updates), 1)
join_update: JoinedSyncResult = join_updates[0]
self.assertEqual(join_update.room_id, room_id)
else:
# Check that the invite receiving user has not automatically joined the room when syncing
join_updates, _ = sync_join(self, invited_user_id)
self.assertEqual(len(join_updates), 0)
@parameterized.expand(
[
[False, True],
[True, False],
]
)
@override_config(
{
"auto_accept_invites": {
"enabled": True,
"only_from_local_users": True,
},
}
)
def test_accept_invite_local_user(
self, remote_inviter: bool, expect_auto_join: bool
) -> None:
"""Tests that, if the module is configured to only accept invites from local users, invites
from local users are still automatically accepted. Otherwise they are rejected.
"""
# A local user who sends an invite
creator_user_id = self.register_user("inviter", "pass")
creator_user_tok = self.login("inviter", "pass")
# A local user who receives an invite
invited_user_id = self.register_user("invitee", "pass")
self.login("invitee", "pass")
# Create a room and send an invite to the other user
room_id = self.helper.create_room_as(
creator_user_id, is_public=False, tok=creator_user_tok
)
if remote_inviter:
room_version = self.get_success(self.store.get_room_version(room_id))
# A remote user who sends the invite
remote_server = "otherserver"
remote_user = "@otheruser:" + remote_server
invite_event = event_from_pdu_json(
{
"type": EventTypes.Member,
"content": {"membership": "invite"},
"room_id": room_id,
"sender": remote_user,
"state_key": invited_user_id,
"depth": 32,
"prev_events": [],
"auth_events": [],
"origin_server_ts": self.clock.time_msec(),
},
room_version,
)
self.get_success(
self.handler.on_invite_request(
remote_server,
invite_event,
invite_event.room_version,
)
)
else:
self.helper.invite(
room_id,
creator_user_id,
invited_user_id,
tok=creator_user_tok,
)
if expect_auto_join:
# Check that the invite receiving user has automatically joined the room when syncing
join_updates, _ = sync_join(self, invited_user_id)
self.assertEqual(len(join_updates), 1)
join_update: JoinedSyncResult = join_updates[0]
self.assertEqual(join_update.room_id, room_id)
else:
# Check that the invite receiving user has not automatically joined the room when syncing
join_updates, _ = sync_join(self, invited_user_id)
self.assertEqual(len(join_updates), 0)
_request_key = 0
def generate_request_key() -> SyncRequestKey:
global _request_key
_request_key += 1
return ("request_key", _request_key)
def sync_join(
testcase: HomeserverTestCase,
user_id: str,
since_token: Optional[StreamToken] = None,
) -> Tuple[List[JoinedSyncResult], StreamToken]:
"""Perform a sync request for the given user and return the user join updates
they've received, as well as the next_batch token.
This method assumes testcase.sync_handler points to the homeserver's sync handler.
Args:
testcase: The testcase that is currently being run.
user_id: The ID of the user to generate a sync response for.
since_token: An optional token to indicate from at what point to sync from.
Returns:
A tuple containing a list of join updates, and the sync response's
next_batch token.
"""
requester = create_requester(user_id)
sync_config = generate_sync_config(requester.user.to_string())
sync_result = testcase.get_success(
testcase.hs.get_sync_handler().wait_for_sync_for_user(
requester,
sync_config,
SyncVersion.SYNC_V2,
generate_request_key(),
since_token,
)
)
return sync_result.joined, sync_result.next_batch
class InviteAutoAccepterInternalTestCase(TestCase):
"""
Test cases which exercise the internals of the InviteAutoAccepter.
"""
def setUp(self) -> None:
self.module = create_module()
self.user_id = "@peter:test"
self.invitee = "@lesley:test"
self.remote_invitee = "@thomas:remote"
# We know our module API is a mock, but mypy doesn't.
self.mocked_update_membership: Mock = self.module._api.update_room_membership # type: ignore[assignment]
async def test_accept_invite_with_failures(self) -> None:
"""Tests that receiving an invite for a local user makes the module attempt to
make the invitee join the room. This test verifies that it works if the call to
update membership returns exceptions before successfully completing and returning an event.
"""
invite = MockEvent(
sender="@inviter:test",
state_key="@invitee:test",
type="m.room.member",
content={"membership": "invite"},
)
join_event = MockEvent(
sender="someone",
state_key="someone",
type="m.room.member",
content={"membership": "join"},
)
# the first two calls raise an exception while the third call is successful
self.mocked_update_membership.side_effect = [
SynapseError(HTTPStatus.FORBIDDEN, "Forbidden"),
SynapseError(HTTPStatus.FORBIDDEN, "Forbidden"),
make_awaitable(join_event),
]
# Stop mypy from complaining that we give on_new_event a MockEvent rather than an
# EventBase.
await self.module.on_new_event(event=invite) # type: ignore[arg-type]
await self.retry_assertions(
self.mocked_update_membership,
3,
sender=invite.state_key,
target=invite.state_key,
room_id=invite.room_id,
new_membership="join",
)
async def test_accept_invite_failures(self) -> None:
"""Tests that receiving an invite for a local user makes the module attempt to
make the invitee join the room. This test verifies that if the update_membership call
fails consistently, _retry_make_join will break the loop after the set number of retries and
execution will continue.
"""
invite = MockEvent(
sender=self.user_id,
state_key=self.invitee,
type="m.room.member",
content={"membership": "invite"},
)
self.mocked_update_membership.side_effect = SynapseError(
HTTPStatus.FORBIDDEN, "Forbidden"
)
# Stop mypy from complaining that we give on_new_event a MockEvent rather than an
# EventBase.
await self.module.on_new_event(event=invite) # type: ignore[arg-type]
await self.retry_assertions(
self.mocked_update_membership,
5,
sender=invite.state_key,
target=invite.state_key,
room_id=invite.room_id,
new_membership="join",
)
async def test_not_state(self) -> None:
"""Tests that receiving an invite that's not a state event does nothing."""
invite = MockEvent(
sender=self.user_id, type="m.room.member", content={"membership": "invite"}
)
# Stop mypy from complaining that we give on_new_event a MockEvent rather than an
# EventBase.
await self.module.on_new_event(event=invite) # type: ignore[arg-type]
self.mocked_update_membership.assert_not_called()
async def test_not_invite(self) -> None:
"""Tests that receiving a membership update that's not an invite does nothing."""
invite = MockEvent(
sender=self.user_id,
state_key=self.user_id,
type="m.room.member",
content={"membership": "join"},
)
# Stop mypy from complaining that we give on_new_event a MockEvent rather than an
# EventBase.
await self.module.on_new_event(event=invite) # type: ignore[arg-type]
self.mocked_update_membership.assert_not_called()
async def test_not_membership(self) -> None:
"""Tests that receiving a state event that's not a membership update does
nothing.
"""
invite = MockEvent(
sender=self.user_id,
state_key=self.user_id,
type="org.matrix.test",
content={"foo": "bar"},
)
# Stop mypy from complaining that we give on_new_event a MockEvent rather than an
# EventBase.
await self.module.on_new_event(event=invite) # type: ignore[arg-type]
self.mocked_update_membership.assert_not_called()
def test_config_parse(self) -> None:
"""Tests that a correct configuration parses."""
config = {
"auto_accept_invites": {
"enabled": True,
"only_for_direct_messages": True,
"only_from_local_users": True,
}
}
parsed_config = AutoAcceptInvitesConfig()
parsed_config.read_config(config)
self.assertTrue(parsed_config.enabled)
self.assertTrue(parsed_config.accept_invites_only_for_direct_messages)
self.assertTrue(parsed_config.accept_invites_only_from_local_users)
def test_runs_on_only_one_worker(self) -> None:
"""
Tests that the module only runs on the specified worker.
"""
# By default, we run on the main process...
main_module = create_module(
config_override={"auto_accept_invites": {"enabled": True}}, worker_name=None
)
cast(
Mock, main_module._api.register_third_party_rules_callbacks
).assert_called_once()
# ...and not on other workers (like synchrotrons)...
sync_module = create_module(worker_name="synchrotron42")
cast(
Mock, sync_module._api.register_third_party_rules_callbacks
).assert_not_called()
# ...unless we configured them to be the designated worker.
specified_module = create_module(
config_override={
"auto_accept_invites": {
"enabled": True,
"worker_to_run_on": "account_data1",
}
},
worker_name="account_data1",
)
cast(
Mock, specified_module._api.register_third_party_rules_callbacks
).assert_called_once()
async def retry_assertions(
self, mock: Mock, call_count: int, **kwargs: Any
) -> None:
"""
This is a hacky way to ensure that the assertions are not called before the other coroutine
has a chance to call `update_room_membership`. It catches the exception caused by a failure,
and sleeps the thread before retrying, up until 5 tries.
Args:
call_count: the number of times the mock should have been called
mock: the mocked function we want to assert on
kwargs: keyword arguments to assert that the mock was called with
"""
i = 0
while i < 5:
try:
# Check that the mocked method is called the expected amount of times and with the right
# arguments to attempt to make the user join the room.
mock.assert_called_with(**kwargs)
self.assertEqual(call_count, mock.call_count)
break
except AssertionError as e:
i += 1
if i == 5:
# we've used up the tries, force the test to fail as we've already caught the exception
self.fail(e)
await asyncio.sleep(1)
@attr.s(auto_attribs=True)
class MockEvent:
"""Mocks an event. Only exposes properties the module uses."""
sender: str
type: str
content: Dict[str, Any]
room_id: str = "!someroom"
state_key: Optional[str] = None
def is_state(self) -> bool:
"""Checks if the event is a state event by checking if it has a state key."""
return self.state_key is not None
@property
def membership(self) -> str:
"""Extracts the membership from the event. Should only be called on an event
that's a membership event, and will raise a KeyError otherwise.
"""
membership: str = self.content["membership"]
return membership
T = TypeVar("T")
TV = TypeVar("TV")
async def make_awaitable(value: T) -> T:
return value
def make_multiple_awaitable(result: TV) -> Awaitable[TV]:
"""
Makes an awaitable, suitable for mocking an `async` function.
This uses Futures as they can be awaited multiple times so can be returned
to multiple callers.
"""
future: Future[TV] = Future()
future.set_result(result)
return future
def create_module(
config_override: Optional[Dict[str, Any]] = None, worker_name: Optional[str] = None
) -> InviteAutoAccepter:
# Create a mock based on the ModuleApi spec, but override some mocked functions
# because some capabilities are needed for running the tests.
module_api = Mock(spec=ModuleApi)
module_api.is_mine.side_effect = lambda a: a.split(":")[1] == "test"
module_api.worker_name = worker_name
module_api.sleep.return_value = make_multiple_awaitable(None)
if config_override is None:
config_override = {}
config = AutoAcceptInvitesConfig()
config.read_config(config_override)
return InviteAutoAccepter(config, module_api)