Don't include appservice users when calculating push rules (#13332)

This can cause a lot of extra load on servers with lots of appservice users. Introduced in #13078
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Erik Johnston 2022-07-20 12:06:13 +01:00 committed by GitHub
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changelog.d/13332.bugfix Normal file
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@ -0,0 +1 @@
Fix a bug introduced in Synapse 1.63.0 where push actions were incorrectly calculated for appservice users. This caused performance issues on servers with large numbers of appservices.

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@ -131,6 +131,13 @@ class BulkPushRuleEvaluator:
local_users = await self.store.get_local_users_in_room(event.room_id)
# Filter out appservice users.
local_users = [
u
for u in local_users
if not self.store.get_if_app_services_interested_in_user(u)
]
# if this event is an invite event, we may need to run rules for the user
# who's been invited, otherwise they won't get told they've been invited
if event.type == EventTypes.Member and event.membership == Membership.INVITE:

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@ -16,13 +16,23 @@ from typing import Dict, Optional, Set, Tuple, Union
import frozendict
from twisted.test.proto_helpers import MemoryReactor
import synapse.rest.admin
from synapse.api.constants import EventTypes, Membership
from synapse.api.room_versions import RoomVersions
from synapse.appservice import ApplicationService
from synapse.events import FrozenEvent
from synapse.push import push_rule_evaluator
from synapse.push.push_rule_evaluator import PushRuleEvaluatorForEvent
from synapse.rest.client import login, register, room
from synapse.server import HomeServer
from synapse.storage.databases.main.appservice import _make_exclusive_regex
from synapse.types import JsonDict
from synapse.util import Clock
from tests import unittest
from tests.test_utils.event_injection import create_event, inject_member_event
class PushRuleEvaluatorTestCase(unittest.TestCase):
@ -354,3 +364,78 @@ class PushRuleEvaluatorTestCase(unittest.TestCase):
"event_type": "*.reaction",
}
self.assertTrue(evaluator.matches(condition, "@user:test", "foo"))
class TestBulkPushRuleEvaluator(unittest.HomeserverTestCase):
"""Tests for the bulk push rule evaluator"""
servlets = [
synapse.rest.admin.register_servlets_for_client_rest_resource,
login.register_servlets,
register.register_servlets,
room.register_servlets,
]
def prepare(self, reactor: MemoryReactor, clock: Clock, homeserver: HomeServer):
# Define an application service so that we can register appservice users
self._service_token = "some_token"
self._service = ApplicationService(
self._service_token,
"as1",
"@as.sender:test",
namespaces={
"users": [
{"regex": "@_as_.*:test", "exclusive": True},
{"regex": "@as.sender:test", "exclusive": True},
]
},
msc3202_transaction_extensions=True,
)
self.hs.get_datastores().main.services_cache = [self._service]
self.hs.get_datastores().main.exclusive_user_regex = _make_exclusive_regex(
[self._service]
)
self._as_user, _ = self.register_appservice_user(
"_as_user", self._service_token
)
self.evaluator = self.hs.get_bulk_push_rule_evaluator()
def test_ignore_appservice_users(self) -> None:
"Test that we don't generate push for appservice users"
user_id = self.register_user("user", "pass")
token = self.login("user", "pass")
room_id = self.helper.create_room_as(user_id, tok=token)
self.get_success(
inject_member_event(self.hs, room_id, self._as_user, Membership.JOIN)
)
event, context = self.get_success(
create_event(
self.hs,
type=EventTypes.Message,
room_id=room_id,
sender=user_id,
content={"body": "test", "msgtype": "m.text"},
)
)
# Assert the returned push rules do not contain the app service user
rules = self.get_success(self.evaluator._get_rules_for_event(event))
self.assertTrue(self._as_user not in rules)
# Assert that no push actions have been added to the staging table (the
# sender should not be pushed for the event)
users_with_push_actions = self.get_success(
self.hs.get_datastores().main.db_pool.simple_select_onecol(
table="event_push_actions_staging",
keyvalues={"event_id": event.event_id},
retcol="user_id",
desc="test_ignore_appservice_users",
)
)
self.assertEqual(len(users_with_push_actions), 0)