synapse/tests/rest/client/test_third_party_rules.py
Andrew Morgan 66ac4b1e34
Allow modules to create and send events into rooms (#8479)
This PR allows Synapse modules making use of the `ModuleApi` to create and send non-membership events into a room. This can useful to have modules send messages, or change power levels in a room etc. Note that they must send event through a user that's already in the room.

The non-membership event limitation is currently arbitrary, as it's another chunk of work and not necessary at the moment.
2020-10-09 13:46:36 +01:00

170 lines
5.7 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2019 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.
import threading
from typing import Dict
from mock import Mock
from synapse.events import EventBase
from synapse.module_api import ModuleApi
from synapse.rest import admin
from synapse.rest.client.v1 import login, room
from synapse.types import Requester, StateMap
from tests import unittest
thread_local = threading.local()
class ThirdPartyRulesTestModule:
def __init__(self, config: Dict, module_api: ModuleApi):
# keep a record of the "current" rules module, so that the test can patch
# it if desired.
thread_local.rules_module = self
self.module_api = module_api
async def on_create_room(
self, requester: Requester, config: dict, is_requester_admin: bool
):
return True
async def check_event_allowed(self, event: EventBase, state: StateMap[EventBase]):
return True
@staticmethod
def parse_config(config):
return config
def current_rules_module() -> ThirdPartyRulesTestModule:
return thread_local.rules_module
class ThirdPartyRulesTestCase(unittest.HomeserverTestCase):
servlets = [
admin.register_servlets,
login.register_servlets,
room.register_servlets,
]
def default_config(self):
config = super().default_config()
config["third_party_event_rules"] = {
"module": __name__ + ".ThirdPartyRulesTestModule",
"config": {},
}
return config
def prepare(self, reactor, clock, homeserver):
# Create a user and room to play with during the tests
self.user_id = self.register_user("kermit", "monkey")
self.tok = self.login("kermit", "monkey")
self.room_id = self.helper.create_room_as(self.user_id, tok=self.tok)
def test_third_party_rules(self):
"""Tests that a forbidden event is forbidden from being sent, but an allowed one
can be sent.
"""
# patch the rules module with a Mock which will return False for some event
# types
async def check(ev, state):
return ev.type != "foo.bar.forbidden"
callback = Mock(spec=[], side_effect=check)
current_rules_module().check_event_allowed = callback
request, channel = self.make_request(
"PUT",
"/_matrix/client/r0/rooms/%s/send/foo.bar.allowed/1" % self.room_id,
{},
access_token=self.tok,
)
self.render(request)
self.assertEquals(channel.result["code"], b"200", channel.result)
callback.assert_called_once()
# there should be various state events in the state arg: do some basic checks
state_arg = callback.call_args[0][1]
for k in (("m.room.create", ""), ("m.room.member", self.user_id)):
self.assertIn(k, state_arg)
ev = state_arg[k]
self.assertEqual(ev.type, k[0])
self.assertEqual(ev.state_key, k[1])
request, channel = self.make_request(
"PUT",
"/_matrix/client/r0/rooms/%s/send/foo.bar.forbidden/1" % self.room_id,
{},
access_token=self.tok,
)
self.render(request)
self.assertEquals(channel.result["code"], b"403", channel.result)
def test_modify_event(self):
"""Tests that the module can successfully tweak an event before it is persisted.
"""
# first patch the event checker so that it will modify the event
async def check(ev: EventBase, state):
ev.content = {"x": "y"}
return True
current_rules_module().check_event_allowed = check
# now send the event
request, channel = self.make_request(
"PUT",
"/_matrix/client/r0/rooms/%s/send/modifyme/1" % self.room_id,
{"x": "x"},
access_token=self.tok,
)
self.render(request)
self.assertEqual(channel.result["code"], b"200", channel.result)
event_id = channel.json_body["event_id"]
# ... and check that it got modified
request, channel = self.make_request(
"GET",
"/_matrix/client/r0/rooms/%s/event/%s" % (self.room_id, event_id),
access_token=self.tok,
)
self.render(request)
self.assertEqual(channel.result["code"], b"200", channel.result)
ev = channel.json_body
self.assertEqual(ev["content"]["x"], "y")
def test_send_event(self):
"""Tests that the module can send an event into a room via the module api"""
content = {
"msgtype": "m.text",
"body": "Hello!",
}
event_dict = {
"room_id": self.room_id,
"type": "m.room.message",
"content": content,
"sender": self.user_id,
}
event = self.get_success(
current_rules_module().module_api.create_and_send_event_into_room(
event_dict
)
) # type: EventBase
self.assertEquals(event.sender, self.user_id)
self.assertEquals(event.room_id, self.room_id)
self.assertEquals(event.type, "m.room.message")
self.assertEquals(event.content, content)