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synapse/tests/handlers/test_typing.py
Eric Eastwood 1c802de626
Re-introduce the outbound federation proxy (#15913) 
Allow configuring the set of workers to proxy outbound federation traffic through (`outbound_federation_restricted_to`).

This is useful when you have a worker setup with `federation_sender` instances responsible for sending outbound federation requests and want to make sure *all* outbound federation traffic goes through those instances. Before this change, the generic workers would still contact federation themselves for things like profile lookups, backfill, etc. This PR allows you to set more strict access controls/firewall for all workers and only allow the `federation_sender`'s to contact the outside world.
2023-07-18 09:49:21 +01:00

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# Copyright 2014-2016 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import json
from typing import Dict, List, Set
from unittest.mock import ANY, Mock, call
from netaddr import IPSet
from twisted.test.proto_helpers import MemoryReactor
from twisted.web.resource import Resource
from synapse.api.constants import EduTypes
from synapse.api.errors import AuthError
from synapse.federation.transport.server import TransportLayerServer
from synapse.handlers.typing import TypingWriterHandler
from synapse.http.federation.matrix_federation_agent import MatrixFederationAgent
from synapse.server import HomeServer
from synapse.types import JsonDict, Requester, UserID, create_requester
from synapse.util import Clock
from tests import unittest
from tests.server import ThreadedMemoryReactorClock
from tests.test_utils import make_awaitable
from tests.unittest import override_config
# Some local users to test with
U_APPLE = UserID.from_string("@apple:test")
U_BANANA = UserID.from_string("@banana:test")
# Remote user
U_ONION = UserID.from_string("@onion:farm")
# Test room id
ROOM_ID = "a-room"
# Room we're not in
OTHER_ROOM_ID = "another-room"
def _expect_edu_transaction(
edu_type: str, content: JsonDict, origin: str = "test"
) -> JsonDict:
return {
"origin": origin,
"origin_server_ts": 1000000,
"pdus": [],
"edus": [{"edu_type": edu_type, "content": content}],
}
def _make_edu_transaction_json(edu_type: str, content: JsonDict) -> bytes:
return json.dumps(_expect_edu_transaction(edu_type, content)).encode("utf8")
class TypingNotificationsTestCase(unittest.HomeserverTestCase):
def make_homeserver(
self,
reactor: ThreadedMemoryReactorClock,
clock: Clock,
) -> HomeServer:
# we mock out the keyring so as to skip the authentication check on the
# federation API call.
mock_keyring = Mock(spec=["verify_json_for_server"])
mock_keyring.verify_json_for_server.return_value = make_awaitable(True)
# we mock out the federation client too
self.mock_federation_client = Mock(spec=["put_json"])
self.mock_federation_client.put_json.return_value = make_awaitable((200, "OK"))
self.mock_federation_client.agent = MatrixFederationAgent(
reactor,
tls_client_options_factory=None,
user_agent=b"SynapseInTrialTest/0.0.0",
ip_allowlist=None,
ip_blocklist=IPSet(),
)
# the tests assume that we are starting at unix time 1000
reactor.pump((1000,))
self.mock_hs_notifier = Mock()
hs = self.setup_test_homeserver(
notifier=self.mock_hs_notifier,
federation_http_client=self.mock_federation_client,
keyring=mock_keyring,
replication_streams={},
)
return hs
def create_resource_dict(self) -> Dict[str, Resource]:
d = super().create_resource_dict()
d["/_matrix/federation"] = TransportLayerServer(self.hs)
return d
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
self.on_new_event = self.mock_hs_notifier.on_new_event
# hs.get_typing_handler will return a TypingWriterHandler when calling it
# from the main process, and a FollowerTypingHandler on workers.
# We rely on methods only available on the former, so assert we have the
# correct type here. We have to assign self.handler after the assert,
# otherwise mypy will treat it as a FollowerTypingHandler
handler = hs.get_typing_handler()
assert isinstance(handler, TypingWriterHandler)
self.handler = handler
self.event_source = hs.get_event_sources().sources.typing
self.datastore = hs.get_datastores().main
self.datastore.get_destination_retry_timings = Mock(
return_value=make_awaitable(None)
)
self.datastore.get_device_updates_by_remote = Mock( # type: ignore[assignment]
return_value=make_awaitable((0, []))
)
self.datastore.get_destination_last_successful_stream_ordering = Mock( # type: ignore[assignment]
return_value=make_awaitable(None)
)
self.datastore.get_received_txn_response = Mock( # type: ignore[assignment]
return_value=make_awaitable(None)
)
self.room_members: List[UserID] = []
async def check_user_in_room(room_id: str, requester: Requester) -> None:
if requester.user.to_string() not in [
u.to_string() for u in self.room_members
]:
raise AuthError(401, "User is not in the room")
return None
hs.get_auth().check_user_in_room = Mock( # type: ignore[assignment]
side_effect=check_user_in_room
)
async def check_host_in_room(room_id: str, server_name: str) -> bool:
return room_id == ROOM_ID
hs.get_event_auth_handler().is_host_in_room = Mock( # type: ignore[assignment]
side_effect=check_host_in_room
)
async def get_current_hosts_in_room(room_id: str) -> Set[str]:
return {member.domain for member in self.room_members}
hs.get_storage_controllers().state.get_current_hosts_in_room = Mock( # type: ignore[assignment]
side_effect=get_current_hosts_in_room
)
hs.get_storage_controllers().state.get_current_hosts_in_room_or_partial_state_approximation = Mock( # type: ignore[assignment]
side_effect=get_current_hosts_in_room
)
async def get_users_in_room(room_id: str) -> Set[str]:
return {str(u) for u in self.room_members}
self.datastore.get_users_in_room = Mock(side_effect=get_users_in_room)
self.datastore.get_user_directory_stream_pos = Mock( # type: ignore[assignment]
side_effect=(
# we deliberately return a non-None stream pos to avoid
# doing an initial_sync
lambda: make_awaitable(1)
)
)
self.datastore.get_partial_current_state_deltas = Mock(return_value=(0, None)) # type: ignore[assignment]
self.datastore.get_to_device_stream_token = Mock( # type: ignore[assignment]
side_effect=lambda: 0
)
self.datastore.get_new_device_msgs_for_remote = Mock( # type: ignore[assignment]
side_effect=lambda *args, **kargs: make_awaitable(([], 0))
)
self.datastore.delete_device_msgs_for_remote = Mock( # type: ignore[assignment]
side_effect=lambda *args, **kargs: make_awaitable(None)
)
self.datastore.set_received_txn_response = Mock( # type: ignore[assignment]
side_effect=lambda *args, **kwargs: make_awaitable(None)
)
def test_started_typing_local(self) -> None:
self.room_members = [U_APPLE, U_BANANA]
self.assertEqual(self.event_source.get_current_key(), 0)
self.get_success(
self.handler.started_typing(
target_user=U_APPLE,
requester=create_requester(U_APPLE),
room_id=ROOM_ID,
timeout=20000,
)
)
self.on_new_event.assert_has_calls([call("typing_key", 1, rooms=[ROOM_ID])])
self.assertEqual(self.event_source.get_current_key(), 1)
events = self.get_success(
self.event_source.get_new_events(
user=U_APPLE, from_key=0, limit=0, room_ids=[ROOM_ID], is_guest=False
)
)
self.assertEqual(
events[0],
[
{
"type": EduTypes.TYPING,
"room_id": ROOM_ID,
"content": {"user_ids": [U_APPLE.to_string()]},
}
],
)
# Enable federation sending on the main process.
@override_config({"federation_sender_instances": None})
def test_started_typing_remote_send(self) -> None:
self.room_members = [U_APPLE, U_ONION]
self.get_success(
self.handler.started_typing(
target_user=U_APPLE,
requester=create_requester(U_APPLE),
room_id=ROOM_ID,
timeout=20000,
)
)
self.mock_federation_client.put_json.assert_called_once_with(
"farm",
path="/_matrix/federation/v1/send/1000000",
data=_expect_edu_transaction(
EduTypes.TYPING,
content={
"room_id": ROOM_ID,
"user_id": U_APPLE.to_string(),
"typing": True,
},
),
json_data_callback=ANY,
long_retries=True,
backoff_on_404=True,
try_trailing_slash_on_400=True,
)
def test_started_typing_remote_recv(self) -> None:
self.room_members = [U_APPLE, U_ONION]
self.assertEqual(self.event_source.get_current_key(), 0)
channel = self.make_request(
"PUT",
"/_matrix/federation/v1/send/1000000",
_make_edu_transaction_json(
EduTypes.TYPING,
content={
"room_id": ROOM_ID,
"user_id": U_ONION.to_string(),
"typing": True,
},
),
federation_auth_origin=b"farm",
)
self.assertEqual(channel.code, 200)
self.on_new_event.assert_has_calls([call("typing_key", 1, rooms=[ROOM_ID])])
self.assertEqual(self.event_source.get_current_key(), 1)
events = self.get_success(
self.event_source.get_new_events(
user=U_APPLE, from_key=0, limit=0, room_ids=[ROOM_ID], is_guest=False
)
)
self.assertEqual(
events[0],
[
{
"type": EduTypes.TYPING,
"room_id": ROOM_ID,
"content": {"user_ids": [U_ONION.to_string()]},
}
],
)
def test_started_typing_remote_recv_not_in_room(self) -> None:
self.room_members = [U_APPLE, U_ONION]
self.assertEqual(self.event_source.get_current_key(), 0)
channel = self.make_request(
"PUT",
"/_matrix/federation/v1/send/1000000",
_make_edu_transaction_json(
EduTypes.TYPING,
content={
"room_id": OTHER_ROOM_ID,
"user_id": U_ONION.to_string(),
"typing": True,
},
),
federation_auth_origin=b"farm",
)
self.assertEqual(channel.code, 200)
self.on_new_event.assert_not_called()
self.assertEqual(self.event_source.get_current_key(), 0)
events = self.get_success(
self.event_source.get_new_events(
user=U_APPLE,
from_key=0,
limit=0,
room_ids=[OTHER_ROOM_ID],
is_guest=False,
)
)
self.assertEqual(events[0], [])
self.assertEqual(events[1], 0)
# Enable federation sending on the main process.
@override_config({"federation_sender_instances": None})
def test_stopped_typing(self) -> None:
self.room_members = [U_APPLE, U_BANANA, U_ONION]
# Gut-wrenching
from synapse.handlers.typing import RoomMember
member = RoomMember(ROOM_ID, U_APPLE.to_string())
self.handler._member_typing_until[member] = 1002000
self.handler._room_typing[ROOM_ID] = {U_APPLE.to_string()}
self.assertEqual(self.event_source.get_current_key(), 0)
self.get_success(
self.handler.stopped_typing(
target_user=U_APPLE,
requester=create_requester(U_APPLE),
room_id=ROOM_ID,
)
)
self.on_new_event.assert_has_calls([call("typing_key", 1, rooms=[ROOM_ID])])
self.mock_federation_client.put_json.assert_called_once_with(
"farm",
path="/_matrix/federation/v1/send/1000000",
data=_expect_edu_transaction(
EduTypes.TYPING,
content={
"room_id": ROOM_ID,
"user_id": U_APPLE.to_string(),
"typing": False,
},
),
json_data_callback=ANY,
long_retries=True,
backoff_on_404=True,
try_trailing_slash_on_400=True,
)
self.assertEqual(self.event_source.get_current_key(), 1)
events = self.get_success(
self.event_source.get_new_events(
user=U_APPLE, from_key=0, limit=0, room_ids=[ROOM_ID], is_guest=False
)
)
self.assertEqual(
events[0],
[
{
"type": EduTypes.TYPING,
"room_id": ROOM_ID,
"content": {"user_ids": []},
}
],
)
def test_typing_timeout(self) -> None:
self.room_members = [U_APPLE, U_BANANA]
self.assertEqual(self.event_source.get_current_key(), 0)
self.get_success(
self.handler.started_typing(
target_user=U_APPLE,
requester=create_requester(U_APPLE),
room_id=ROOM_ID,
timeout=10000,
)
)
self.on_new_event.assert_has_calls([call("typing_key", 1, rooms=[ROOM_ID])])
self.on_new_event.reset_mock()
self.assertEqual(self.event_source.get_current_key(), 1)
events = self.get_success(
self.event_source.get_new_events(
user=U_APPLE,
from_key=0,
limit=0,
room_ids=[ROOM_ID],
is_guest=False,
)
)
self.assertEqual(
events[0],
[
{
"type": EduTypes.TYPING,
"room_id": ROOM_ID,
"content": {"user_ids": [U_APPLE.to_string()]},
}
],
)
self.reactor.pump([16])
self.on_new_event.assert_has_calls([call("typing_key", 2, rooms=[ROOM_ID])])
self.assertEqual(self.event_source.get_current_key(), 2)
events = self.get_success(
self.event_source.get_new_events(
user=U_APPLE,
from_key=1,
limit=0,
room_ids=[ROOM_ID],
is_guest=False,
)
)
self.assertEqual(
events[0],
[
{
"type": EduTypes.TYPING,
"room_id": ROOM_ID,
"content": {"user_ids": []},
}
],
)
# SYN-230 - see if we can still set after timeout
self.get_success(
self.handler.started_typing(
target_user=U_APPLE,
requester=create_requester(U_APPLE),
room_id=ROOM_ID,
timeout=10000,
)
)
self.on_new_event.assert_has_calls([call("typing_key", 3, rooms=[ROOM_ID])])
self.on_new_event.reset_mock()
self.assertEqual(self.event_source.get_current_key(), 3)
events = self.get_success(
self.event_source.get_new_events(
user=U_APPLE,
from_key=0,
limit=0,
room_ids=[ROOM_ID],
is_guest=False,
)
)
self.assertEqual(
events[0],
[
{
"type": EduTypes.TYPING,
"room_id": ROOM_ID,
"content": {"user_ids": [U_APPLE.to_string()]},
}
],
)
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