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synapse/tests/push/test_bulk_push_rule_evaluator.py
Devon Hudson eda735e4bb
Remove support for python 3.8 (#17908) 
### Pull Request Checklist

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https://element-hq.github.io/synapse/latest/development/contributing_guide.html
before submitting your pull request -->

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---------

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
2024-11-06 19:36:01 +00:00

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#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright 2022 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
from typing import Any, Optional
from unittest.mock import AsyncMock, patch
from parameterized import parameterized
from twisted.test.proto_helpers import MemoryReactor
from synapse.api.constants import EventContentFields, RelationTypes
from synapse.api.room_versions import RoomVersions
from synapse.push.bulk_push_rule_evaluator import BulkPushRuleEvaluator
from synapse.rest import admin
from synapse.rest.client import login, register, room
from synapse.server import HomeServer
from synapse.types import JsonDict, create_requester
from synapse.util import Clock
from tests.unittest import HomeserverTestCase, override_config
class TestBulkPushRuleEvaluator(HomeserverTestCase):
servlets = [
admin.register_servlets_for_client_rest_resource,
room.register_servlets,
login.register_servlets,
register.register_servlets,
]
def prepare(
self, reactor: MemoryReactor, clock: Clock, homeserver: HomeServer
) -> None:
# Create a new user and room.
self.alice = self.register_user("alice", "pass")
self.token = self.login(self.alice, "pass")
self.requester = create_requester(self.alice)
self.room_id = self.helper.create_room_as(
# This is deliberately set to V9, because we want to test the logic which
# handles stringy power levels. Stringy power levels were outlawed in V10.
self.alice,
room_version=RoomVersions.V9.identifier,
tok=self.token,
)
self.event_creation_handler = self.hs.get_event_creation_handler()
@parameterized.expand(
[
# The historically-permitted bad values. Alice's notification should be
# allowed if this threshold is at or below her power level (60)
("100", False),
("0", True),
(12.34, True),
(60.0, True),
(67.89, False),
# Values that int(...) would not successfully cast should be ignored.
# The room notification level should then default to 50, per the spec, so
# Alice's notification is allowed.
(None, True),
# We haven't seen `"room": []` or `"room": {}` in the wild (yet), but
# let's check them for paranoia's sake.
([], True),
({}, True),
]
)
def test_action_for_event_by_user_handles_noninteger_room_power_levels(
self, bad_room_level: object, should_permit: bool
) -> None:
"""We should convert strings in `room` to integers before passing to Rust.
Test this as follows:
- Create a room as Alice and invite two other users Bob and Charlie.
- Set PLs so that Alice has PL 60 and `notifications.room` is set to a bad value.
- Have Alice create a message notifying @room.
- Evaluate notification actions for that message. This should not raise.
- Look in the DB to see if that message triggered a highlight for Bob.
The test is parameterised with two arguments:
- the bad power level value for "room", before JSON serisalistion
- whether Bob should expect the message to be highlighted
Reproduces https://github.com/matrix-org/synapse/issues/14060.
A lack of validation: the gift that keeps on giving.
"""
# Join another user to the room, so that there is someone to see Alice's
# @room notification.
bob = self.register_user("bob", "pass")
bob_token = self.login(bob, "pass")
self.helper.join(self.room_id, bob, tok=bob_token)
# Alter the power levels in that room to include the bad @room notification
# level. We need to suppress
#
# - canonicaljson validation, because canonicaljson forbids floats;
# - the event jsonschema validation, because it will forbid bad values; and
# - the auth rules checks, because they stop us from creating power levels
# with `"room": null`. (We want to test this case, because we have seen it
# in the wild.)
#
# We have seen stringy and null values for "room" in the wild, so presumably
# some of this validation was missing in the past.
with (
patch("synapse.events.validator.validate_canonicaljson"),
patch("synapse.events.validator.jsonschema.validate"),
patch("synapse.handlers.event_auth.check_state_dependent_auth_rules"),
):
pl_event_id = self.helper.send_state(
self.room_id,
"m.room.power_levels",
{
"users": {self.alice: 60},
"notifications": {"room": bad_room_level},
},
self.token,
state_key="",
)["event_id"]
# Create a new message event, and try to evaluate it under the dodgy
# power level event.
event, unpersisted_context = self.get_success(
self.event_creation_handler.create_event(
self.requester,
{
"type": "m.room.message",
"room_id": self.room_id,
"content": {
"msgtype": "m.text",
"body": "helo @room",
},
"sender": self.alice,
},
prev_event_ids=[pl_event_id],
)
)
context = self.get_success(unpersisted_context.persist(event))
bulk_evaluator = BulkPushRuleEvaluator(self.hs)
# should not raise
self.get_success(bulk_evaluator.action_for_events_by_user([(event, context)]))
# Did Bob see Alice's @room notification?
highlighted_actions = self.get_success(
self.hs.get_datastores().main.db_pool.simple_select_list(
table="event_push_actions_staging",
keyvalues={
"event_id": event.event_id,
"user_id": bob,
"highlight": 1,
},
retcols=("*",),
desc="get_event_push_actions_staging",
)
)
self.assertEqual(len(highlighted_actions), int(should_permit))
@override_config({"push": {"enabled": False}})
def test_action_for_event_by_user_disabled_by_config(self) -> None:
"""Ensure that push rules are not calculated when disabled in the config"""
# Create a new message event which should cause a notification.
event, unpersisted_context = self.get_success(
self.event_creation_handler.create_event(
self.requester,
{
"type": "m.room.message",
"room_id": self.room_id,
"content": {
"msgtype": "m.text",
"body": "helo",
},
"sender": self.alice,
},
)
)
context = self.get_success(unpersisted_context.persist(event))
bulk_evaluator = BulkPushRuleEvaluator(self.hs)
# Mock the method which calculates push rules -- we do this instead of
# e.g. checking the results in the database because we want to ensure
# that code isn't even running.
bulk_evaluator._action_for_event_by_user = AsyncMock() # type: ignore[method-assign]
# Ensure no actions are generated!
self.get_success(bulk_evaluator.action_for_events_by_user([(event, context)]))
bulk_evaluator._action_for_event_by_user.assert_not_called()
def _create_and_process(
self, bulk_evaluator: BulkPushRuleEvaluator, content: Optional[JsonDict] = None
) -> bool:
"""Returns true iff the `mentions` trigger an event push action."""
# Create a new message event which should cause a notification.
event, unpersisted_context = self.get_success(
self.event_creation_handler.create_event(
self.requester,
{
"type": "test",
"room_id": self.room_id,
"content": content or {},
"sender": f"@bob:{self.hs.hostname}",
},
)
)
context = self.get_success(unpersisted_context.persist(event))
# Execute the push rule machinery.
self.get_success(bulk_evaluator.action_for_events_by_user([(event, context)]))
# If any actions are generated for this event, return true.
result = self.get_success(
self.hs.get_datastores().main.db_pool.simple_select_list(
table="event_push_actions_staging",
keyvalues={"event_id": event.event_id},
retcols=("*",),
desc="get_event_push_actions_staging",
)
)
return len(result) > 0
def test_user_mentions(self) -> None:
"""Test the behavior of an event which includes invalid user mentions."""
bulk_evaluator = BulkPushRuleEvaluator(self.hs)
# Not including the mentions field should not notify.
self.assertFalse(self._create_and_process(bulk_evaluator))
# An empty mentions field should not notify.
self.assertFalse(
self._create_and_process(bulk_evaluator, {EventContentFields.MENTIONS: {}})
)
# Non-dict mentions should be ignored.
#
# Avoid C-S validation as these aren't expected.
with patch(
"synapse.events.validator.EventValidator.validate_new",
new=lambda s, event, config: True,
):
mentions: Any
for mentions in (None, True, False, 1, "foo", []):
self.assertFalse(
self._create_and_process(
bulk_evaluator, {EventContentFields.MENTIONS: mentions}
)
)
# A non-list should be ignored.
for mentions in (None, True, False, 1, "foo", {}):
self.assertFalse(
self._create_and_process(
bulk_evaluator,
{EventContentFields.MENTIONS: {"user_ids": mentions}},
)
)
# The Matrix ID appearing anywhere in the list should notify.
self.assertTrue(
self._create_and_process(
bulk_evaluator,
{EventContentFields.MENTIONS: {"user_ids": [self.alice]}},
)
)
self.assertTrue(
self._create_and_process(
bulk_evaluator,
{
EventContentFields.MENTIONS: {
"user_ids": ["@another:test", self.alice]
}
},
)
)
# Duplicate user IDs should notify.
self.assertTrue(
self._create_and_process(
bulk_evaluator,
{EventContentFields.MENTIONS: {"user_ids": [self.alice, self.alice]}},
)
)
# Invalid entries in the list are ignored.
#
# Avoid C-S validation as these aren't expected.
with patch(
"synapse.events.validator.EventValidator.validate_new",
new=lambda s, event, config: True,
):
self.assertFalse(
self._create_and_process(
bulk_evaluator,
{
EventContentFields.MENTIONS: {
"user_ids": [None, True, False, {}, []]
}
},
)
)
self.assertTrue(
self._create_and_process(
bulk_evaluator,
{
EventContentFields.MENTIONS: {
"user_ids": [None, True, False, {}, [], self.alice]
}
},
)
)
# The legacy push rule should not mention if the mentions field exists.
self.assertFalse(
self._create_and_process(
bulk_evaluator,
{
"body": self.alice,
"msgtype": "m.text",
EventContentFields.MENTIONS: {},
},
)
)
def test_room_mentions(self) -> None:
"""Test the behavior of an event which includes invalid room mentions."""
bulk_evaluator = BulkPushRuleEvaluator(self.hs)
# Room mentions from those without power should not notify.
self.assertFalse(
self._create_and_process(
bulk_evaluator, {EventContentFields.MENTIONS: {"room": True}}
)
)
# Room mentions from those with power should notify.
self.helper.send_state(
self.room_id,
"m.room.power_levels",
{"notifications": {"room": 0}},
self.token,
state_key="",
)
self.assertTrue(
self._create_and_process(
bulk_evaluator, {EventContentFields.MENTIONS: {"room": True}}
)
)
# Invalid data should not notify.
#
# Avoid C-S validation as these aren't expected.
with patch(
"synapse.events.validator.EventValidator.validate_new",
new=lambda s, event, config: True,
):
mentions: Any
for mentions in (None, False, 1, "foo", [], {}):
self.assertFalse(
self._create_and_process(
bulk_evaluator,
{EventContentFields.MENTIONS: {"room": mentions}},
)
)
# The legacy push rule should not mention if the mentions field exists.
self.assertFalse(
self._create_and_process(
bulk_evaluator,
{
"body": "@room",
"msgtype": "m.text",
EventContentFields.MENTIONS: {},
},
)
)
def test_suppress_edits(self) -> None:
"""Under the default push rules, event edits should not generate notifications."""
bulk_evaluator = BulkPushRuleEvaluator(self.hs)
# Create & persist an event to use as the parent of the relation.
event, unpersisted_context = self.get_success(
self.event_creation_handler.create_event(
self.requester,
{
"type": "m.room.message",
"room_id": self.room_id,
"content": {
"msgtype": "m.text",
"body": "helo",
},
"sender": self.alice,
},
)
)
context = self.get_success(unpersisted_context.persist(event))
self.get_success(
self.event_creation_handler.handle_new_client_event(
self.requester, events_and_context=[(event, context)]
)
)
# The edit should not cause a notification.
self.assertFalse(
self._create_and_process(
bulk_evaluator,
{
"body": "Test message",
"m.relates_to": {
"rel_type": RelationTypes.REPLACE,
"event_id": event.event_id,
},
},
)
)
# An edit which is a mention will cause a notification.
self.assertTrue(
self._create_and_process(
bulk_evaluator,
{
"body": "Test message",
"m.relates_to": {
"rel_type": RelationTypes.REPLACE,
"event_id": event.event_id,
},
"m.mentions": {
"user_ids": [self.alice],
},
},
)
)
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