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synapse/tests/handlers/test_user_directory.py
David Robertson f7b034a24b
Consistently exclude from user_directory (#10960) 
* Introduce `should_include_local_users_in_dir`

We exclude three kinds of local users from the user_directory tables. At
present we don't consistently exclude all three in the same places. This
commit introduces a new function to gather those exclusion conditions
together. Because we have to handle local and remote users in different
ways, I've made that function only consider the case of remote users.
It's the caller's responsibility to make the local versus remote
distinction clear and correct.

A test fixup is required. The test now hits a path which makes db
queries against the users table. The expected rows were missing, because
we were using a dummy user that hadn't actually been registered.

We also add new test cases to covert the exclusion logic.

----

By my reading this makes these changes:

* When an app service user registers or changes their profile, they will
  _not_ be added to the user directory. (Previously only support and
  deactivated users were excluded). This is consistent with the logic that
  rebuilds the user directory. See also [the discussion
  here](https://github.com/matrix-org/synapse/pull/10914#discussion_r716859548).
* When rebuilding the directory, exclude support and disabled users from
  room sharing tables. Previously only appservice users were excluded.
* Exclude all three categories of local users when rebuilding the
  directory. Previously `_populate_user_directory_process_users` didn't do
  any exclusion.

Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
2021-10-04 11:45:51 +00:00

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# Copyright 2018 New Vector
#
# 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 typing import Tuple
from unittest.mock import Mock, patch
from urllib.parse import quote
from twisted.internet import defer
from twisted.test.proto_helpers import MemoryReactor
import synapse.rest.admin
from synapse.api.constants import UserTypes
from synapse.api.room_versions import RoomVersion, RoomVersions
from synapse.appservice import ApplicationService
from synapse.rest.client import login, register, room, user_directory
from synapse.server import HomeServer
from synapse.storage.roommember import ProfileInfo
from synapse.types import create_requester
from synapse.util import Clock
from tests import unittest
from tests.storage.test_user_directory import GetUserDirectoryTables
from tests.test_utils.event_injection import inject_member_event
from tests.unittest import override_config
class UserDirectoryTestCase(unittest.HomeserverTestCase):
"""Tests the UserDirectoryHandler.
We're broadly testing two kinds of things here.
1. Check that we correctly update the user directory in response
to events (e.g. join a room, leave a room, change name, make public)
2. Check that the search logic behaves as expected.
The background process that rebuilds the user directory is tested in
tests/storage/test_user_directory.py.
"""
servlets = [
login.register_servlets,
synapse.rest.admin.register_servlets,
register.register_servlets,
room.register_servlets,
]
def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
config = self.default_config()
config["update_user_directory"] = True
self.appservice = ApplicationService(
token="i_am_an_app_service",
hostname="test",
id="1234",
namespaces={"users": [{"regex": r"@as_user.*", "exclusive": True}]},
sender="@as:test",
)
mock_load_appservices = Mock(return_value=[self.appservice])
with patch(
"synapse.storage.databases.main.appservice.load_appservices",
mock_load_appservices,
):
hs = self.setup_test_homeserver(config=config)
return hs
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
self.store = hs.get_datastore()
self.handler = hs.get_user_directory_handler()
self.event_builder_factory = self.hs.get_event_builder_factory()
self.event_creation_handler = self.hs.get_event_creation_handler()
self.user_dir_helper = GetUserDirectoryTables(self.store)
def test_normal_user_pair(self) -> None:
"""Sanity check that the room-sharing tables are updated correctly."""
alice = self.register_user("alice", "pass")
alice_token = self.login(alice, "pass")
bob = self.register_user("bob", "pass")
bob_token = self.login(bob, "pass")
public = self.helper.create_room_as(
alice,
is_public=True,
extra_content={"visibility": "public"},
tok=alice_token,
)
private = self.helper.create_room_as(alice, is_public=False, tok=alice_token)
self.helper.invite(private, alice, bob, tok=alice_token)
self.helper.join(public, bob, tok=bob_token)
self.helper.join(private, bob, tok=bob_token)
# Alice also makes a second public room but no-one else joins
public2 = self.helper.create_room_as(
alice,
is_public=True,
extra_content={"visibility": "public"},
tok=alice_token,
)
users = self.get_success(self.user_dir_helper.get_users_in_user_directory())
in_public = self.get_success(self.user_dir_helper.get_users_in_public_rooms())
in_private = self.get_success(
self.user_dir_helper.get_users_who_share_private_rooms()
)
self.assertEqual(users, {alice, bob})
self.assertEqual(
set(in_public), {(alice, public), (bob, public), (alice, public2)}
)
self.assertEqual(
self.user_dir_helper._compress_shared(in_private),
{(alice, bob, private), (bob, alice, private)},
)
# The next three tests (test_population_excludes_*) all setup
# - A normal user included in the user dir
# - A public and private room created by that user
# - A user excluded from the room dir, belonging to both rooms
# They match similar logic in storage/test_user_directory. But that tests
# rebuilding the directory; this tests updating it incrementally.
def test_excludes_support_user(self) -> None:
alice = self.register_user("alice", "pass")
alice_token = self.login(alice, "pass")
support = "@support1:test"
self.get_success(
self.store.register_user(
user_id=support, password_hash=None, user_type=UserTypes.SUPPORT
)
)
public, private = self._create_rooms_and_inject_memberships(
alice, alice_token, support
)
self._check_only_one_user_in_directory(alice, public)
def test_excludes_deactivated_user(self) -> None:
admin = self.register_user("admin", "pass", admin=True)
admin_token = self.login(admin, "pass")
user = self.register_user("naughty", "pass")
# Deactivate the user.
channel = self.make_request(
"PUT",
f"/_synapse/admin/v2/users/{user}",
access_token=admin_token,
content={"deactivated": True},
)
self.assertEqual(channel.code, 200)
self.assertEqual(channel.json_body["deactivated"], True)
# Join the deactivated user to rooms owned by the admin.
# Is this something that could actually happen outside of a test?
public, private = self._create_rooms_and_inject_memberships(
admin, admin_token, user
)
self._check_only_one_user_in_directory(admin, public)
def test_excludes_appservices_user(self) -> None:
# Register an AS user.
user = self.register_user("user", "pass")
token = self.login(user, "pass")
as_user = self.register_appservice_user("as_user_potato", self.appservice.token)
# Join the AS user to rooms owned by the normal user.
public, private = self._create_rooms_and_inject_memberships(
user, token, as_user
)
self._check_only_one_user_in_directory(user, public)
def _create_rooms_and_inject_memberships(
self, creator: str, token: str, joiner: str
) -> Tuple[str, str]:
"""Create a public and private room as a normal user.
Then get the `joiner` into those rooms.
"""
# TODO: Duplicates the same-named method in UserDirectoryInitialPopulationTest.
public_room = self.helper.create_room_as(
creator,
is_public=True,
# See https://github.com/matrix-org/synapse/issues/10951
extra_content={"visibility": "public"},
tok=token,
)
private_room = self.helper.create_room_as(creator, is_public=False, tok=token)
# HACK: get the user into these rooms
self.get_success(inject_member_event(self.hs, public_room, joiner, "join"))
self.get_success(inject_member_event(self.hs, private_room, joiner, "join"))
return public_room, private_room
def _check_only_one_user_in_directory(self, user: str, public: str) -> None:
users = self.get_success(self.user_dir_helper.get_users_in_user_directory())
in_public = self.get_success(self.user_dir_helper.get_users_in_public_rooms())
in_private = self.get_success(
self.user_dir_helper.get_users_who_share_private_rooms()
)
self.assertEqual(users, {user})
self.assertEqual(set(in_public), {(user, public)})
self.assertEqual(in_private, [])
def test_handle_local_profile_change_with_support_user(self) -> None:
support_user_id = "@support:test"
self.get_success(
self.store.register_user(
user_id=support_user_id, password_hash=None, user_type=UserTypes.SUPPORT
)
)
regular_user_id = "@regular:test"
self.get_success(
self.store.register_user(user_id=regular_user_id, password_hash=None)
)
self.get_success(
self.handler.handle_local_profile_change(
support_user_id, ProfileInfo("I love support me", None)
)
)
profile = self.get_success(self.store.get_user_in_directory(support_user_id))
self.assertTrue(profile is None)
display_name = "display_name"
profile_info = ProfileInfo(avatar_url="avatar_url", display_name=display_name)
self.get_success(
self.handler.handle_local_profile_change(regular_user_id, profile_info)
)
profile = self.get_success(self.store.get_user_in_directory(regular_user_id))
self.assertTrue(profile["display_name"] == display_name)
def test_handle_local_profile_change_with_deactivated_user(self) -> None:
# create user
r_user_id = "@regular:test"
self.get_success(
self.store.register_user(user_id=r_user_id, password_hash=None)
)
# update profile
display_name = "Regular User"
profile_info = ProfileInfo(avatar_url="avatar_url", display_name=display_name)
self.get_success(
self.handler.handle_local_profile_change(r_user_id, profile_info)
)
# profile is in directory
profile = self.get_success(self.store.get_user_in_directory(r_user_id))
self.assertTrue(profile["display_name"] == display_name)
# deactivate user
self.get_success(self.store.set_user_deactivated_status(r_user_id, True))
self.get_success(self.handler.handle_local_user_deactivated(r_user_id))
# profile is not in directory
profile = self.get_success(self.store.get_user_in_directory(r_user_id))
self.assertTrue(profile is None)
# update profile after deactivation
self.get_success(
self.handler.handle_local_profile_change(r_user_id, profile_info)
)
# profile is furthermore not in directory
profile = self.get_success(self.store.get_user_in_directory(r_user_id))
self.assertTrue(profile is None)
def test_handle_local_profile_change_with_appservice_user(self) -> None:
# create user
as_user_id = self.register_appservice_user(
"as_user_alice", self.appservice.token
)
# profile is not in directory
profile = self.get_success(self.store.get_user_in_directory(as_user_id))
self.assertTrue(profile is None)
# update profile
profile_info = ProfileInfo(avatar_url="avatar_url", display_name="4L1c3")
self.get_success(
self.handler.handle_local_profile_change(as_user_id, profile_info)
)
# profile is still not in directory
profile = self.get_success(self.store.get_user_in_directory(as_user_id))
self.assertTrue(profile is None)
def test_handle_user_deactivated_support_user(self) -> None:
s_user_id = "@support:test"
self.get_success(
self.store.register_user(
user_id=s_user_id, password_hash=None, user_type=UserTypes.SUPPORT
)
)
mock_remove_from_user_dir = Mock(return_value=defer.succeed(None))
with patch.object(
self.store, "remove_from_user_dir", mock_remove_from_user_dir
):
self.get_success(self.handler.handle_local_user_deactivated(s_user_id))
# BUG: the correct spelling is assert_not_called, but that makes the test fail
# and it's not clear that this is actually the behaviour we want.
mock_remove_from_user_dir.not_called()
def test_handle_user_deactivated_regular_user(self) -> None:
r_user_id = "@regular:test"
self.get_success(
self.store.register_user(user_id=r_user_id, password_hash=None)
)
mock_remove_from_user_dir = Mock(return_value=defer.succeed(None))
with patch.object(
self.store, "remove_from_user_dir", mock_remove_from_user_dir
):
self.get_success(self.handler.handle_local_user_deactivated(r_user_id))
mock_remove_from_user_dir.assert_called_once_with(r_user_id)
def test_reactivation_makes_regular_user_searchable(self) -> None:
user = self.register_user("regular", "pass")
user_token = self.login(user, "pass")
admin_user = self.register_user("admin", "pass", admin=True)
admin_token = self.login(admin_user, "pass")
# Ensure the regular user is publicly visible and searchable.
self.helper.create_room_as(user, is_public=True, tok=user_token)
s = self.get_success(self.handler.search_users(admin_user, user, 10))
self.assertEqual(len(s["results"]), 1)
self.assertEqual(s["results"][0]["user_id"], user)
# Deactivate the user and check they're not searchable.
deactivate_handler = self.hs.get_deactivate_account_handler()
self.get_success(
deactivate_handler.deactivate_account(
user, erase_data=False, requester=create_requester(admin_user)
)
)
s = self.get_success(self.handler.search_users(admin_user, user, 10))
self.assertEqual(s["results"], [])
# Reactivate the user
channel = self.make_request(
"PUT",
f"/_synapse/admin/v2/users/{quote(user)}",
access_token=admin_token,
content={"deactivated": False, "password": "pass"},
)
self.assertEqual(channel.code, 200)
user_token = self.login(user, "pass")
self.helper.create_room_as(user, is_public=True, tok=user_token)
# Check they're searchable.
s = self.get_success(self.handler.search_users(admin_user, user, 10))
self.assertEqual(len(s["results"]), 1)
self.assertEqual(s["results"][0]["user_id"], user)
def test_private_room(self) -> None:
"""
A user can be searched for only by people that are either in a public
room, or that share a private chat.
"""
u1 = self.register_user("user1", "pass")
u1_token = self.login(u1, "pass")
u2 = self.register_user("user2", "pass")
u2_token = self.login(u2, "pass")
u3 = self.register_user("user3", "pass")
# We do not add users to the directory until they join a room.
s = self.get_success(self.handler.search_users(u1, "user2", 10))
self.assertEqual(len(s["results"]), 0)
room = self.helper.create_room_as(u1, is_public=False, tok=u1_token)
self.helper.invite(room, src=u1, targ=u2, tok=u1_token)
self.helper.join(room, user=u2, tok=u2_token)
# Check we have populated the database correctly.
shares_private = self.get_success(
self.user_dir_helper.get_users_who_share_private_rooms()
)
public_users = self.get_success(
self.user_dir_helper.get_users_in_public_rooms()
)
self.assertEqual(
self.user_dir_helper._compress_shared(shares_private),
{(u1, u2, room), (u2, u1, room)},
)
self.assertEqual(public_users, [])
# We get one search result when searching for user2 by user1.
s = self.get_success(self.handler.search_users(u1, "user2", 10))
self.assertEqual(len(s["results"]), 1)
# We get NO search results when searching for user2 by user3.
s = self.get_success(self.handler.search_users(u3, "user2", 10))
self.assertEqual(len(s["results"]), 0)
# We get NO search results when searching for user3 by user1.
s = self.get_success(self.handler.search_users(u1, "user3", 10))
self.assertEqual(len(s["results"]), 0)
# User 2 then leaves.
self.helper.leave(room, user=u2, tok=u2_token)
# Check we have removed the values.
shares_private = self.get_success(
self.user_dir_helper.get_users_who_share_private_rooms()
)
public_users = self.get_success(
self.user_dir_helper.get_users_in_public_rooms()
)
self.assertEqual(self.user_dir_helper._compress_shared(shares_private), set())
self.assertEqual(public_users, [])
# User1 now gets no search results for any of the other users.
s = self.get_success(self.handler.search_users(u1, "user2", 10))
self.assertEqual(len(s["results"]), 0)
s = self.get_success(self.handler.search_users(u1, "user3", 10))
self.assertEqual(len(s["results"]), 0)
def test_spam_checker(self) -> None:
"""
A user which fails the spam checks will not appear in search results.
"""
u1 = self.register_user("user1", "pass")
u1_token = self.login(u1, "pass")
u2 = self.register_user("user2", "pass")
u2_token = self.login(u2, "pass")
# We do not add users to the directory until they join a room.
s = self.get_success(self.handler.search_users(u1, "user2", 10))
self.assertEqual(len(s["results"]), 0)
room = self.helper.create_room_as(u1, is_public=False, tok=u1_token)
self.helper.invite(room, src=u1, targ=u2, tok=u1_token)
self.helper.join(room, user=u2, tok=u2_token)
# Check we have populated the database correctly.
shares_private = self.get_success(
self.user_dir_helper.get_users_who_share_private_rooms()
)
public_users = self.get_success(
self.user_dir_helper.get_users_in_public_rooms()
)
self.assertEqual(
self.user_dir_helper._compress_shared(shares_private),
{(u1, u2, room), (u2, u1, room)},
)
self.assertEqual(public_users, [])
# We get one search result when searching for user2 by user1.
s = self.get_success(self.handler.search_users(u1, "user2", 10))
self.assertEqual(len(s["results"]), 1)
async def allow_all(user_profile: ProfileInfo) -> bool:
# Allow all users.
return False
# Configure a spam checker that does not filter any users.
spam_checker = self.hs.get_spam_checker()
spam_checker._check_username_for_spam_callbacks = [allow_all]
# The results do not change:
# We get one search result when searching for user2 by user1.
s = self.get_success(self.handler.search_users(u1, "user2", 10))
self.assertEqual(len(s["results"]), 1)
# Configure a spam checker that filters all users.
async def block_all(user_profile: ProfileInfo) -> bool:
# All users are spammy.
return True
spam_checker._check_username_for_spam_callbacks = [block_all]
# User1 now gets no search results for any of the other users.
s = self.get_success(self.handler.search_users(u1, "user2", 10))
self.assertEqual(len(s["results"]), 0)
def test_legacy_spam_checker(self) -> None:
"""
A spam checker without the expected method should be ignored.
"""
u1 = self.register_user("user1", "pass")
u1_token = self.login(u1, "pass")
u2 = self.register_user("user2", "pass")
u2_token = self.login(u2, "pass")
# We do not add users to the directory until they join a room.
s = self.get_success(self.handler.search_users(u1, "user2", 10))
self.assertEqual(len(s["results"]), 0)
room = self.helper.create_room_as(u1, is_public=False, tok=u1_token)
self.helper.invite(room, src=u1, targ=u2, tok=u1_token)
self.helper.join(room, user=u2, tok=u2_token)
# Check we have populated the database correctly.
shares_private = self.get_success(
self.user_dir_helper.get_users_who_share_private_rooms()
)
public_users = self.get_success(
self.user_dir_helper.get_users_in_public_rooms()
)
self.assertEqual(
self.user_dir_helper._compress_shared(shares_private),
{(u1, u2, room), (u2, u1, room)},
)
self.assertEqual(public_users, [])
# Configure a spam checker.
spam_checker = self.hs.get_spam_checker()
# The spam checker doesn't need any methods, so create a bare object.
spam_checker.spam_checker = object()
# We get one search result when searching for user2 by user1.
s = self.get_success(self.handler.search_users(u1, "user2", 10))
self.assertEqual(len(s["results"]), 1)
def test_initial_share_all_users(self) -> None:
"""
Search all users = True means that a user does not have to share a
private room with the searching user or be in a public room to be search
visible.
"""
self.handler.search_all_users = True
self.hs.config.userdirectory.user_directory_search_all_users = True
u1 = self.register_user("user1", "pass")
self.register_user("user2", "pass")
u3 = self.register_user("user3", "pass")
shares_private = self.get_success(
self.user_dir_helper.get_users_who_share_private_rooms()
)
public_users = self.get_success(
self.user_dir_helper.get_users_in_public_rooms()
)
# No users share rooms
self.assertEqual(public_users, [])
self.assertEqual(self.user_dir_helper._compress_shared(shares_private), set())
# Despite not sharing a room, search_all_users means we get a search
# result.
s = self.get_success(self.handler.search_users(u1, u3, 10))
self.assertEqual(len(s["results"]), 1)
# We can find the other two users
s = self.get_success(self.handler.search_users(u1, "user", 10))
self.assertEqual(len(s["results"]), 2)
# Registering a user and then searching for them works.
u4 = self.register_user("user4", "pass")
s = self.get_success(self.handler.search_users(u1, u4, 10))
self.assertEqual(len(s["results"]), 1)
@override_config(
{
"user_directory": {
"enabled": True,
"search_all_users": True,
"prefer_local_users": True,
}
}
)
def test_prefer_local_users(self) -> None:
"""Tests that local users are shown higher in search results when
user_directory.prefer_local_users is True.
"""
# Create a room and few users to test the directory with
searching_user = self.register_user("searcher", "password")
searching_user_tok = self.login("searcher", "password")
room_id = self.helper.create_room_as(
searching_user,
room_version=RoomVersions.V1.identifier,
tok=searching_user_tok,
)
# Create a few local users and join them to the room
local_user_1 = self.register_user("user_xxxxx", "password")
local_user_2 = self.register_user("user_bbbbb", "password")
local_user_3 = self.register_user("user_zzzzz", "password")
self._add_user_to_room(room_id, RoomVersions.V1, local_user_1)
self._add_user_to_room(room_id, RoomVersions.V1, local_user_2)
self._add_user_to_room(room_id, RoomVersions.V1, local_user_3)
# Create a few "remote" users and join them to the room
remote_user_1 = "@user_aaaaa:remote_server"
remote_user_2 = "@user_yyyyy:remote_server"
remote_user_3 = "@user_ccccc:remote_server"
self._add_user_to_room(room_id, RoomVersions.V1, remote_user_1)
self._add_user_to_room(room_id, RoomVersions.V1, remote_user_2)
self._add_user_to_room(room_id, RoomVersions.V1, remote_user_3)
local_users = [local_user_1, local_user_2, local_user_3]
remote_users = [remote_user_1, remote_user_2, remote_user_3]
# The local searching user searches for the term "user", which other users have
# in their user id
results = self.get_success(
self.handler.search_users(searching_user, "user", 20)
)["results"]
received_user_id_ordering = [result["user_id"] for result in results]
# Typically we'd expect Synapse to return users in lexicographical order,
# assuming they have similar User IDs/display names, and profile information.
# Check that the order of returned results using our module is as we expect,
# i.e our local users show up first, despite all users having lexographically mixed
# user IDs.
[self.assertIn(user, local_users) for user in received_user_id_ordering[:3]]
[self.assertIn(user, remote_users) for user in received_user_id_ordering[3:]]
def _add_user_to_room(
self,
room_id: str,
room_version: RoomVersion,
user_id: str,
) -> None:
# Add a user to the room.
builder = self.event_builder_factory.for_room_version(
room_version,
{
"type": "m.room.member",
"sender": user_id,
"state_key": user_id,
"room_id": room_id,
"content": {"membership": "join"},
},
)
event, context = self.get_success(
self.event_creation_handler.create_new_client_event(builder)
)
self.get_success(
self.hs.get_storage().persistence.persist_event(event, context)
)
class TestUserDirSearchDisabled(unittest.HomeserverTestCase):
servlets = [
user_directory.register_servlets,
room.register_servlets,
login.register_servlets,
synapse.rest.admin.register_servlets_for_client_rest_resource,
]
def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
config = self.default_config()
config["update_user_directory"] = True
hs = self.setup_test_homeserver(config=config)
self.config = hs.config
return hs
def test_disabling_room_list(self) -> None:
self.config.userdirectory.user_directory_search_enabled = True
# Create two users and put them in the same room.
u1 = self.register_user("user1", "pass")
u1_token = self.login(u1, "pass")
u2 = self.register_user("user2", "pass")
u2_token = self.login(u2, "pass")
room = self.helper.create_room_as(u1, tok=u1_token)
self.helper.join(room, user=u2, tok=u2_token)
# Each should see the other when searching the user directory.
channel = self.make_request(
"POST",
b"user_directory/search",
b'{"search_term":"user2"}',
access_token=u1_token,
)
self.assertEquals(200, channel.code, channel.result)
self.assertTrue(len(channel.json_body["results"]) > 0)
# Disable user directory and check search returns nothing
self.config.userdirectory.user_directory_search_enabled = False
channel = self.make_request(
"POST",
b"user_directory/search",
b'{"search_term":"user2"}',
access_token=u1_token,
)
self.assertEquals(200, channel.code, channel.result)
self.assertTrue(len(channel.json_body["results"]) == 0)
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