diff options
| -rw-r--r-- | changelog.d/8157.feature | 1 | ||||
| -rw-r--r-- | synapse/handlers/profile.py | 17 | ||||
| -rw-r--r-- | synapse/handlers/room_member.py | 2 | ||||
| -rw-r--r-- | tests/rest/client/test_shadow_banned.py | 272 | ||||
| -rw-r--r-- | tests/rest/client/v1/test_rooms.py | 159 |
5 files changed, 291 insertions, 160 deletions
diff --git a/changelog.d/8157.feature b/changelog.d/8157.feature new file mode 100644 index 0000000000..813e6d0903 --- /dev/null +++ b/changelog.d/8157.feature @@ -0,0 +1 @@ +Add support for shadow-banning users (ignoring any message send requests). diff --git a/synapse/handlers/profile.py b/synapse/handlers/profile.py index 31a2e5ea18..96c9d6bab4 100644 --- a/synapse/handlers/profile.py +++ b/synapse/handlers/profile.py @@ -14,6 +14,7 @@ # limitations under the License. import logging +import random from synapse.api.errors import ( AuthError, @@ -213,8 +214,14 @@ class BaseProfileHandler(BaseHandler): async def set_avatar_url( self, target_user, requester, new_avatar_url, by_admin=False ): - """target_user is the user whose avatar_url is to be changed; - auth_user is the user attempting to make this change.""" + """Set a new avatar URL for a user. + + Args: + target_user (UserID): the user whose avatar URL is to be changed. + requester (Requester): The user attempting to make this change. + new_avatar_url (str): The avatar URL to give this user. + by_admin (bool): Whether this change was made by an administrator. + """ if not self.hs.is_mine(target_user): raise SynapseError(400, "User is not hosted on this homeserver") @@ -278,6 +285,12 @@ class BaseProfileHandler(BaseHandler): await self.ratelimit(requester) + # Do not actually update the room state for shadow-banned users. + if requester.shadow_banned: + # We randomly sleep a bit just to annoy the requester. + await self.clock.sleep(random.randint(1, 10)) + return + room_ids = await self.store.get_rooms_for_user(target_user.to_string()) for room_id in room_ids: diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py index 804463b1c0..cae4d013b8 100644 --- a/synapse/handlers/room_member.py +++ b/synapse/handlers/room_member.py @@ -380,7 +380,7 @@ class RoomMemberHandler(object): # later on. content = dict(content) - if not self.allow_per_room_profiles: + if not self.allow_per_room_profiles or requester.shadow_banned: # Strip profile data, knowing that new profile data will be added to the # event's content in event_creation_handler.create_event() using the target's # global profile. diff --git a/tests/rest/client/test_shadow_banned.py b/tests/rest/client/test_shadow_banned.py new file mode 100644 index 0000000000..3eb9aeaa9e --- /dev/null +++ b/tests/rest/client/test_shadow_banned.py @@ -0,0 +1,272 @@ +# Copyright 2020 The Matrix.org Foundation C.I.C. +# +# 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. + +from mock import Mock, patch + +import synapse.rest.admin +from synapse.api.constants import EventTypes +from synapse.rest.client.v1 import directory, login, profile, room +from synapse.rest.client.v2_alpha import room_upgrade_rest_servlet + +from tests import unittest + + +class _ShadowBannedBase(unittest.HomeserverTestCase): + def prepare(self, reactor, clock, homeserver): + # Create two users, one of which is shadow-banned. + self.banned_user_id = self.register_user("banned", "test") + self.banned_access_token = self.login("banned", "test") + + self.store = self.hs.get_datastore() + + self.get_success( + self.store.db_pool.simple_update( + table="users", + keyvalues={"name": self.banned_user_id}, + updatevalues={"shadow_banned": True}, + desc="shadow_ban", + ) + ) + + self.other_user_id = self.register_user("otheruser", "pass") + self.other_access_token = self.login("otheruser", "pass") + + +# To avoid the tests timing out don't add a delay to "annoy the requester". +@patch("random.randint", new=lambda a, b: 0) +class RoomTestCase(_ShadowBannedBase): + servlets = [ + synapse.rest.admin.register_servlets_for_client_rest_resource, + directory.register_servlets, + login.register_servlets, + room.register_servlets, + room_upgrade_rest_servlet.register_servlets, + ] + + def test_invite(self): + """Invites from shadow-banned users don't actually get sent.""" + + # The create works fine. + room_id = self.helper.create_room_as( + self.banned_user_id, tok=self.banned_access_token + ) + + # Inviting the user completes successfully. + self.helper.invite( + room=room_id, + src=self.banned_user_id, + tok=self.banned_access_token, + targ=self.other_user_id, + ) + + # But the user wasn't actually invited. + invited_rooms = self.get_success( + self.store.get_invited_rooms_for_local_user(self.other_user_id) + ) + self.assertEqual(invited_rooms, []) + + def test_invite_3pid(self): + """Ensure that a 3PID invite does not attempt to contact the identity server.""" + identity_handler = self.hs.get_handlers().identity_handler + identity_handler.lookup_3pid = Mock( + side_effect=AssertionError("This should not get called") + ) + + # The create works fine. + room_id = self.helper.create_room_as( + self.banned_user_id, tok=self.banned_access_token + ) + + # Inviting the user completes successfully. + request, channel = self.make_request( + "POST", + "/rooms/%s/invite" % (room_id,), + {"id_server": "test", "medium": "email", "address": "test@test.test"}, + access_token=self.banned_access_token, + ) + self.render(request) + self.assertEquals(200, channel.code, channel.result) + + # This should have raised an error earlier, but double check this wasn't called. + identity_handler.lookup_3pid.assert_not_called() + + def test_create_room(self): + """Invitations during a room creation should be discarded, but the room still gets created.""" + # The room creation is successful. + request, channel = self.make_request( + "POST", + "/_matrix/client/r0/createRoom", + {"visibility": "public", "invite": [self.other_user_id]}, + access_token=self.banned_access_token, + ) + self.render(request) + self.assertEquals(200, channel.code, channel.result) + room_id = channel.json_body["room_id"] + + # But the user wasn't actually invited. + invited_rooms = self.get_success( + self.store.get_invited_rooms_for_local_user(self.other_user_id) + ) + self.assertEqual(invited_rooms, []) + + # Since a real room was created, the other user should be able to join it. + self.helper.join(room_id, self.other_user_id, tok=self.other_access_token) + + # Both users should be in the room. + users = self.get_success(self.store.get_users_in_room(room_id)) + self.assertCountEqual(users, ["@banned:test", "@otheruser:test"]) + + def test_message(self): + """Messages from shadow-banned users don't actually get sent.""" + + room_id = self.helper.create_room_as( + self.other_user_id, tok=self.other_access_token + ) + + # The user should be in the room. + self.helper.join(room_id, self.banned_user_id, tok=self.banned_access_token) + + # Sending a message should complete successfully. + result = self.helper.send_event( + room_id=room_id, + type=EventTypes.Message, + content={"msgtype": "m.text", "body": "with right label"}, + tok=self.banned_access_token, + ) + self.assertIn("event_id", result) + event_id = result["event_id"] + + latest_events = self.get_success( + self.store.get_latest_event_ids_in_room(room_id) + ) + self.assertNotIn(event_id, latest_events) + + def test_upgrade(self): + """A room upgrade should fail, but look like it succeeded.""" + + # The create works fine. + room_id = self.helper.create_room_as( + self.banned_user_id, tok=self.banned_access_token + ) + + request, channel = self.make_request( + "POST", + "/_matrix/client/r0/rooms/%s/upgrade" % (room_id,), + {"new_version": "6"}, + access_token=self.banned_access_token, + ) + self.render(request) + self.assertEquals(200, channel.code, channel.result) + # A new room_id should be returned. + self.assertIn("replacement_room", channel.json_body) + + new_room_id = channel.json_body["replacement_room"] + + # It doesn't really matter what API we use here, we just want to assert + # that the room doesn't exist. + summary = self.get_success(self.store.get_room_summary(new_room_id)) + # The summary should be empty since the room doesn't exist. + self.assertEqual(summary, {}) + + +# To avoid the tests timing out don't add a delay to "annoy the requester". +@patch("random.randint", new=lambda a, b: 0) +class ProfileTestCase(_ShadowBannedBase): + servlets = [ + synapse.rest.admin.register_servlets_for_client_rest_resource, + login.register_servlets, + profile.register_servlets, + room.register_servlets, + ] + + def test_displayname(self): + """Profile changes should succeed, but don't end up in a room.""" + original_display_name = "banned" + new_display_name = "new name" + + # Join a room. + room_id = self.helper.create_room_as( + self.banned_user_id, tok=self.banned_access_token + ) + + # The update should succeed. + request, channel = self.make_request( + "PUT", + "/_matrix/client/r0/profile/%s/displayname" % (self.banned_user_id,), + {"displayname": new_display_name}, + access_token=self.banned_access_token, + ) + self.render(request) + self.assertEquals(200, channel.code, channel.result) + self.assertEqual(channel.json_body, {}) + + # The user's display name should be updated. + request, channel = self.make_request( + "GET", "/profile/%s/displayname" % (self.banned_user_id,) + ) + self.render(request) + self.assertEqual(channel.code, 200, channel.result) + self.assertEqual(channel.json_body["displayname"], new_display_name) + + # But the display name in the room should not be. + message_handler = self.hs.get_message_handler() + event = self.get_success( + message_handler.get_room_data( + self.banned_user_id, + room_id, + "m.room.member", + self.banned_user_id, + False, + ) + ) + self.assertEqual( + event.content, {"membership": "join", "displayname": original_display_name} + ) + + def test_room_displayname(self): + """Changes to state events for a room should be processed, but not end up in the room.""" + original_display_name = "banned" + new_display_name = "new name" + + # Join a room. + room_id = self.helper.create_room_as( + self.banned_user_id, tok=self.banned_access_token + ) + + # The update should succeed. + request, channel = self.make_request( + "PUT", + "/_matrix/client/r0/rooms/%s/state/m.room.member/%s" + % (room_id, self.banned_user_id), + {"membership": "join", "displayname": new_display_name}, + access_token=self.banned_access_token, + ) + self.render(request) + self.assertEquals(200, channel.code, channel.result) + self.assertIn("event_id", channel.json_body) + + # The display name in the room should not be changed. + message_handler = self.hs.get_message_handler() + event = self.get_success( + message_handler.get_room_data( + self.banned_user_id, + room_id, + "m.room.member", + self.banned_user_id, + False, + ) + ) + self.assertEqual( + event.content, {"membership": "join", "displayname": original_display_name} + ) diff --git a/tests/rest/client/v1/test_rooms.py b/tests/rest/client/v1/test_rooms.py index 68c4a6a8f7..0a567b032f 100644 --- a/tests/rest/client/v1/test_rooms.py +++ b/tests/rest/client/v1/test_rooms.py @@ -21,13 +21,13 @@ import json from urllib import parse as urlparse -from mock import Mock, patch +from mock import Mock import synapse.rest.admin from synapse.api.constants import EventContentFields, EventTypes, Membership from synapse.handlers.pagination import PurgeStatus from synapse.rest.client.v1 import directory, login, profile, room -from synapse.rest.client.v2_alpha import account, room_upgrade_rest_servlet +from synapse.rest.client.v2_alpha import account from synapse.types import JsonDict, RoomAlias, UserID from synapse.util.stringutils import random_string @@ -2060,158 +2060,3 @@ class RoomCanonicalAliasTestCase(unittest.HomeserverTestCase): """An alias which does not point to the room raises a SynapseError.""" self._set_canonical_alias({"alias": "@unknown:test"}, expected_code=400) self._set_canonical_alias({"alt_aliases": ["@unknown:test"]}, expected_code=400) - - -# To avoid the tests timing out don't add a delay to "annoy the requester". -@patch("random.randint", new=lambda a, b: 0) -class ShadowBannedTestCase(unittest.HomeserverTestCase): - servlets = [ - synapse.rest.admin.register_servlets_for_client_rest_resource, - directory.register_servlets, - login.register_servlets, - room.register_servlets, - room_upgrade_rest_servlet.register_servlets, - ] - - def prepare(self, reactor, clock, homeserver): - self.banned_user_id = self.register_user("banned", "test") - self.banned_access_token = self.login("banned", "test") - - self.store = self.hs.get_datastore() - - self.get_success( - self.store.db_pool.simple_update( - table="users", - keyvalues={"name": self.banned_user_id}, - updatevalues={"shadow_banned": True}, - desc="shadow_ban", - ) - ) - - self.other_user_id = self.register_user("otheruser", "pass") - self.other_access_token = self.login("otheruser", "pass") - - def test_invite(self): - """Invites from shadow-banned users don't actually get sent.""" - - # The create works fine. - room_id = self.helper.create_room_as( - self.banned_user_id, tok=self.banned_access_token - ) - - # Inviting the user completes successfully. - self.helper.invite( - room=room_id, - src=self.banned_user_id, - tok=self.banned_access_token, - targ=self.other_user_id, - ) - - # But the user wasn't actually invited. - invited_rooms = self.get_success( - self.store.get_invited_rooms_for_local_user(self.other_user_id) - ) - self.assertEqual(invited_rooms, []) - - def test_invite_3pid(self): - """Ensure that a 3PID invite does not attempt to contact the identity server.""" - identity_handler = self.hs.get_handlers().identity_handler - identity_handler.lookup_3pid = Mock( - side_effect=AssertionError("This should not get called") - ) - - # The create works fine. - room_id = self.helper.create_room_as( - self.banned_user_id, tok=self.banned_access_token - ) - - # Inviting the user completes successfully. - request, channel = self.make_request( - "POST", - "/rooms/%s/invite" % (room_id,), - {"id_server": "test", "medium": "email", "address": "test@test.test"}, - access_token=self.banned_access_token, - ) - self.render(request) - self.assertEquals(200, channel.code, channel.result) - - # This should have raised an error earlier, but double check this wasn't called. - identity_handler.lookup_3pid.assert_not_called() - - def test_create_room(self): - """Invitations during a room creation should be discarded, but the room still gets created.""" - # The room creation is successful. - request, channel = self.make_request( - "POST", - "/_matrix/client/r0/createRoom", - {"visibility": "public", "invite": [self.other_user_id]}, - access_token=self.banned_access_token, - ) - self.render(request) - self.assertEquals(200, channel.code, channel.result) - room_id = channel.json_body["room_id"] - - # But the user wasn't actually invited. - invited_rooms = self.get_success( - self.store.get_invited_rooms_for_local_user(self.other_user_id) - ) - self.assertEqual(invited_rooms, []) - - # Since a real room was created, the other user should be able to join it. - self.helper.join(room_id, self.other_user_id, tok=self.other_access_token) - - # Both users should be in the room. - users = self.get_success(self.store.get_users_in_room(room_id)) - self.assertCountEqual(users, ["@banned:test", "@otheruser:test"]) - - def test_message(self): - """Messages from shadow-banned users don't actually get sent.""" - - room_id = self.helper.create_room_as( - self.other_user_id, tok=self.other_access_token - ) - - # The user should be in the room. - self.helper.join(room_id, self.banned_user_id, tok=self.banned_access_token) - - # Sending a message should complete successfully. - result = self.helper.send_event( - room_id=room_id, - type=EventTypes.Message, - content={"msgtype": "m.text", "body": "with right label"}, - tok=self.banned_access_token, - ) - self.assertIn("event_id", result) - event_id = result["event_id"] - - latest_events = self.get_success( - self.store.get_latest_event_ids_in_room(room_id) - ) - self.assertNotIn(event_id, latest_events) - - def test_upgrade(self): - """A room upgrade should fail, but look like it succeeded.""" - - # The create works fine. - room_id = self.helper.create_room_as( - self.banned_user_id, tok=self.banned_access_token - ) - - request, channel = self.make_request( - "POST", - "/_matrix/client/r0/rooms/%s/upgrade" % (room_id,), - {"new_version": "6"}, - access_token=self.banned_access_token, - ) - self.render(request) - self.assertEquals(200, channel.code, channel.result) - # A new room_id should be returned. - self.assertIn("replacement_room", channel.json_body) - - new_room_id = channel.json_body["replacement_room"] - - # It doesn't really matter what API we use here, we just want to assert - # that the room doesn't exist. - summary = self.get_success(self.store.get_room_summary(new_room_id)) - # The summary should be empty since the room doesn't exist. - self.assertEqual(summary, {}) |