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# Copyright 2018 New Vector 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 logging
from typing import Optional
from synapse.api.room_versions import RoomVersions
from synapse.events import EventBase
from synapse.types import JsonDict
from synapse.visibility import filter_events_for_server
from tests import unittest
from tests.utils import create_room
logger = logging.getLogger(__name__)
TEST_ROOM_ID = "!TEST:ROOM"
class FilterEventsForServerTestCase(unittest.HomeserverTestCase):
def setUp(self) -> None:
super(FilterEventsForServerTestCase, self).setUp()
self.event_creation_handler = self.hs.get_event_creation_handler()
self.event_builder_factory = self.hs.get_event_builder_factory()
self.storage = self.hs.get_storage()
self.get_success(create_room(self.hs, TEST_ROOM_ID, "@someone:ROOM"))
def test_filtering(self) -> None:
#
# The events to be filtered consist of 10 membership events (it doesn't
# really matter if they are joins or leaves, so let's make them joins).
# One of those membership events is going to be for a user on the
# server we are filtering for (so we can check the filtering is doing
# the right thing).
#
# before we do that, we persist some other events to act as state.
self.get_success(self._inject_visibility("@admin:hs", "joined"))
for i in range(0, 10):
self.get_success(self._inject_room_member("@resident%i:hs" % i))
events_to_filter = []
for i in range(0, 10):
user = "@user%i:%s" % (i, "test_server" if i == 5 else "other_server")
evt = self.get_success(
self._inject_room_member(user, extra_content={"a": "b"})
)
events_to_filter.append(evt)
filtered = self.get_success(
filter_events_for_server(self.storage, "test_server", events_to_filter)
)
# the result should be 5 redacted events, and 5 unredacted events.
for i in range(0, 5):
self.assertEqual(events_to_filter[i].event_id, filtered[i].event_id)
self.assertNotIn("a", filtered[i].content)
for i in range(5, 10):
self.assertEqual(events_to_filter[i].event_id, filtered[i].event_id)
self.assertEqual(filtered[i].content["a"], "b")
def test_erased_user(self) -> None:
# 4 message events, from erased and unerased users, with a membership
# change in the middle of them.
events_to_filter = []
evt = self.get_success(self._inject_message("@unerased:local_hs"))
events_to_filter.append(evt)
evt = self.get_success(self._inject_message("@erased:local_hs"))
events_to_filter.append(evt)
evt = self.get_success(self._inject_room_member("@joiner:remote_hs"))
events_to_filter.append(evt)
evt = self.get_success(self._inject_message("@unerased:local_hs"))
events_to_filter.append(evt)
evt = self.get_success(self._inject_message("@erased:local_hs"))
events_to_filter.append(evt)
# the erasey user gets erased
self.get_success(
self.hs.get_datastores().main.mark_user_erased("@erased:local_hs")
)
# ... and the filtering happens.
filtered = self.get_success(
filter_events_for_server(self.storage, "test_server", events_to_filter)
)
for i in range(0, len(events_to_filter)):
self.assertEqual(
events_to_filter[i].event_id,
filtered[i].event_id,
"Unexpected event at result position %i" % (i,),
)
for i in (0, 3):
self.assertEqual(
events_to_filter[i].content["body"],
filtered[i].content["body"],
"Unexpected event content at result position %i" % (i,),
)
for i in (1, 4):
self.assertNotIn("body", filtered[i].content)
def _inject_visibility(self, user_id: str, visibility: str) -> EventBase:
content = {"history_visibility": visibility}
builder = self.event_builder_factory.for_room_version(
RoomVersions.V1,
{
"type": "m.room.history_visibility",
"sender": user_id,
"state_key": "",
"room_id": TEST_ROOM_ID,
"content": content,
},
)
event, context = self.get_success(
self.event_creation_handler.create_new_client_event(builder)
)
self.get_success(self.storage.persistence.persist_event(event, context))
return event
def _inject_room_member(
self,
user_id: str,
membership: str = "join",
extra_content: Optional[JsonDict] = None,
) -> EventBase:
content = {"membership": membership}
content.update(extra_content or {})
builder = self.event_builder_factory.for_room_version(
RoomVersions.V1,
{
"type": "m.room.member",
"sender": user_id,
"state_key": user_id,
"room_id": TEST_ROOM_ID,
"content": content,
},
)
event, context = self.get_success(
self.event_creation_handler.create_new_client_event(builder)
)
self.get_success(self.storage.persistence.persist_event(event, context))
return event
def _inject_message(
self, user_id: str, content: Optional[JsonDict] = None
) -> EventBase:
if content is None:
content = {"body": "testytest", "msgtype": "m.text"}
builder = self.event_builder_factory.for_room_version(
RoomVersions.V1,
{
"type": "m.room.message",
"sender": user_id,
"room_id": TEST_ROOM_ID,
"content": content,
},
)
event, context = self.get_success(
self.event_creation_handler.create_new_client_event(builder)
)
self.get_success(self.storage.persistence.persist_event(event, context))
return event
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