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2843058a8b
Test for #10830 Ideally the test would also make sure the new state event comes down sync, but this is probably good enough.
413 lines
15 KiB
Python
413 lines
15 KiB
Python
# Copyright 2019 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the 'License');
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an 'AS IS' BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import threading
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from typing import Dict
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from unittest.mock import Mock
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from synapse.api.constants import EventTypes
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from synapse.events import EventBase
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from synapse.events.third_party_rules import load_legacy_third_party_event_rules
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from synapse.module_api import ModuleApi
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from synapse.rest import admin
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from synapse.rest.client import login, room
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from synapse.types import Requester, StateMap
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from synapse.util.frozenutils import unfreeze
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from tests import unittest
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thread_local = threading.local()
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class LegacyThirdPartyRulesTestModule:
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def __init__(self, config: Dict, module_api: ModuleApi):
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# keep a record of the "current" rules module, so that the test can patch
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# it if desired.
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thread_local.rules_module = self
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self.module_api = module_api
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async def on_create_room(
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self, requester: Requester, config: dict, is_requester_admin: bool
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):
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return True
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async def check_event_allowed(self, event: EventBase, state: StateMap[EventBase]):
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return True
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@staticmethod
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def parse_config(config):
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return config
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class LegacyDenyNewRooms(LegacyThirdPartyRulesTestModule):
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def __init__(self, config: Dict, module_api: ModuleApi):
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super().__init__(config, module_api)
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def on_create_room(
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self, requester: Requester, config: dict, is_requester_admin: bool
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):
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return False
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class LegacyChangeEvents(LegacyThirdPartyRulesTestModule):
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def __init__(self, config: Dict, module_api: ModuleApi):
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super().__init__(config, module_api)
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async def check_event_allowed(self, event: EventBase, state: StateMap[EventBase]):
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d = event.get_dict()
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content = unfreeze(event.content)
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content["foo"] = "bar"
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d["content"] = content
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return d
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class ThirdPartyRulesTestCase(unittest.HomeserverTestCase):
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servlets = [
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admin.register_servlets,
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login.register_servlets,
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room.register_servlets,
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]
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def make_homeserver(self, reactor, clock):
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hs = self.setup_test_homeserver()
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load_legacy_third_party_event_rules(hs)
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return hs
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def prepare(self, reactor, clock, homeserver):
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# Create a user and room to play with during the tests
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self.user_id = self.register_user("kermit", "monkey")
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self.tok = self.login("kermit", "monkey")
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# Some tests might prevent room creation on purpose.
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try:
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self.room_id = self.helper.create_room_as(self.user_id, tok=self.tok)
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except Exception:
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pass
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def test_third_party_rules(self):
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"""Tests that a forbidden event is forbidden from being sent, but an allowed one
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can be sent.
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"""
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# patch the rules module with a Mock which will return False for some event
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# types
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async def check(ev, state):
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return ev.type != "foo.bar.forbidden", None
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callback = Mock(spec=[], side_effect=check)
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self.hs.get_third_party_event_rules()._check_event_allowed_callbacks = [
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callback
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]
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channel = self.make_request(
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"PUT",
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"/_matrix/client/r0/rooms/%s/send/foo.bar.allowed/1" % self.room_id,
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{},
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access_token=self.tok,
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)
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self.assertEquals(channel.result["code"], b"200", channel.result)
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callback.assert_called_once()
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# there should be various state events in the state arg: do some basic checks
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state_arg = callback.call_args[0][1]
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for k in (("m.room.create", ""), ("m.room.member", self.user_id)):
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self.assertIn(k, state_arg)
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ev = state_arg[k]
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self.assertEqual(ev.type, k[0])
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self.assertEqual(ev.state_key, k[1])
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channel = self.make_request(
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"PUT",
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"/_matrix/client/r0/rooms/%s/send/foo.bar.forbidden/2" % self.room_id,
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{},
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access_token=self.tok,
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)
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self.assertEquals(channel.result["code"], b"403", channel.result)
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def test_cannot_modify_event(self):
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"""cannot accidentally modify an event before it is persisted"""
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# first patch the event checker so that it will try to modify the event
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async def check(ev: EventBase, state):
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ev.content = {"x": "y"}
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return True, None
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self.hs.get_third_party_event_rules()._check_event_allowed_callbacks = [check]
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# now send the event
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channel = self.make_request(
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"PUT",
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"/_matrix/client/r0/rooms/%s/send/modifyme/1" % self.room_id,
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{"x": "x"},
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access_token=self.tok,
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)
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# check_event_allowed has some error handling, so it shouldn't 500 just because a
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# module did something bad.
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self.assertEqual(channel.code, 200, channel.result)
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event_id = channel.json_body["event_id"]
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channel = self.make_request(
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"GET",
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"/_matrix/client/r0/rooms/%s/event/%s" % (self.room_id, event_id),
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access_token=self.tok,
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)
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self.assertEqual(channel.code, 200, channel.result)
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ev = channel.json_body
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self.assertEqual(ev["content"]["x"], "x")
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def test_modify_event(self):
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"""The module can return a modified version of the event"""
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# first patch the event checker so that it will modify the event
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async def check(ev: EventBase, state):
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d = ev.get_dict()
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d["content"] = {"x": "y"}
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return True, d
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self.hs.get_third_party_event_rules()._check_event_allowed_callbacks = [check]
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# now send the event
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channel = self.make_request(
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"PUT",
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"/_matrix/client/r0/rooms/%s/send/modifyme/1" % self.room_id,
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{"x": "x"},
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access_token=self.tok,
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)
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self.assertEqual(channel.result["code"], b"200", channel.result)
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event_id = channel.json_body["event_id"]
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# ... and check that it got modified
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channel = self.make_request(
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"GET",
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"/_matrix/client/r0/rooms/%s/event/%s" % (self.room_id, event_id),
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access_token=self.tok,
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)
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self.assertEqual(channel.result["code"], b"200", channel.result)
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ev = channel.json_body
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self.assertEqual(ev["content"]["x"], "y")
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def test_message_edit(self):
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"""Ensure that the module doesn't cause issues with edited messages."""
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# first patch the event checker so that it will modify the event
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async def check(ev: EventBase, state):
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d = ev.get_dict()
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d["content"] = {
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"msgtype": "m.text",
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"body": d["content"]["body"].upper(),
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}
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return True, d
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self.hs.get_third_party_event_rules()._check_event_allowed_callbacks = [check]
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# Send an event, then edit it.
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channel = self.make_request(
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"PUT",
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"/_matrix/client/r0/rooms/%s/send/modifyme/1" % self.room_id,
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{
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"msgtype": "m.text",
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"body": "Original body",
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},
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access_token=self.tok,
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)
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self.assertEqual(channel.result["code"], b"200", channel.result)
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orig_event_id = channel.json_body["event_id"]
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channel = self.make_request(
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"PUT",
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"/_matrix/client/r0/rooms/%s/send/m.room.message/2" % self.room_id,
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{
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"m.new_content": {"msgtype": "m.text", "body": "Edited body"},
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"m.relates_to": {
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"rel_type": "m.replace",
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"event_id": orig_event_id,
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},
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"msgtype": "m.text",
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"body": "Edited body",
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},
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access_token=self.tok,
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)
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self.assertEqual(channel.result["code"], b"200", channel.result)
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edited_event_id = channel.json_body["event_id"]
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# ... and check that they both got modified
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channel = self.make_request(
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"GET",
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"/_matrix/client/r0/rooms/%s/event/%s" % (self.room_id, orig_event_id),
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access_token=self.tok,
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)
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self.assertEqual(channel.result["code"], b"200", channel.result)
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ev = channel.json_body
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self.assertEqual(ev["content"]["body"], "ORIGINAL BODY")
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channel = self.make_request(
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"GET",
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"/_matrix/client/r0/rooms/%s/event/%s" % (self.room_id, edited_event_id),
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access_token=self.tok,
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)
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self.assertEqual(channel.result["code"], b"200", channel.result)
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ev = channel.json_body
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self.assertEqual(ev["content"]["body"], "EDITED BODY")
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def test_send_event(self):
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"""Tests that a module can send an event into a room via the module api"""
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content = {
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"msgtype": "m.text",
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"body": "Hello!",
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}
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event_dict = {
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"room_id": self.room_id,
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"type": "m.room.message",
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"content": content,
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"sender": self.user_id,
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}
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event: EventBase = self.get_success(
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self.hs.get_module_api().create_and_send_event_into_room(event_dict)
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)
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self.assertEquals(event.sender, self.user_id)
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self.assertEquals(event.room_id, self.room_id)
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self.assertEquals(event.type, "m.room.message")
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self.assertEquals(event.content, content)
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@unittest.override_config(
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{
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"third_party_event_rules": {
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"module": __name__ + ".LegacyChangeEvents",
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"config": {},
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}
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}
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)
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def test_legacy_check_event_allowed(self):
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"""Tests that the wrapper for legacy check_event_allowed callbacks works
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correctly.
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"""
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channel = self.make_request(
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"PUT",
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"/_matrix/client/r0/rooms/%s/send/m.room.message/1" % self.room_id,
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{
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"msgtype": "m.text",
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"body": "Original body",
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},
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access_token=self.tok,
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)
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self.assertEqual(channel.result["code"], b"200", channel.result)
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event_id = channel.json_body["event_id"]
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channel = self.make_request(
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"GET",
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"/_matrix/client/r0/rooms/%s/event/%s" % (self.room_id, event_id),
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access_token=self.tok,
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)
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self.assertEqual(channel.result["code"], b"200", channel.result)
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self.assertIn("foo", channel.json_body["content"].keys())
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self.assertEqual(channel.json_body["content"]["foo"], "bar")
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@unittest.override_config(
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{
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"third_party_event_rules": {
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"module": __name__ + ".LegacyDenyNewRooms",
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"config": {},
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}
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}
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)
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def test_legacy_on_create_room(self):
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"""Tests that the wrapper for legacy on_create_room callbacks works
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correctly.
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"""
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self.helper.create_room_as(self.user_id, tok=self.tok, expect_code=403)
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def test_sent_event_end_up_in_room_state(self):
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"""Tests that a state event sent by a module while processing another state event
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doesn't get dropped from the state of the room. This is to guard against a bug
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where Synapse has been observed doing so, see https://github.com/matrix-org/synapse/issues/10830
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"""
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event_type = "org.matrix.test_state"
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# This content will be updated later on, and since we actually use a reference on
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# the dict it does the right thing. It's a bit hacky but a handy way of making
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# sure the state actually gets updated.
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event_content = {"i": -1}
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api = self.hs.get_module_api()
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# Define a callback that sends a custom event on power levels update.
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async def test_fn(event: EventBase, state_events):
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if event.is_state and event.type == EventTypes.PowerLevels:
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await api.create_and_send_event_into_room(
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{
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"room_id": event.room_id,
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"sender": event.sender,
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"type": event_type,
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"content": event_content,
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"state_key": "",
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}
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)
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return True, None
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self.hs.get_third_party_event_rules()._check_event_allowed_callbacks = [test_fn]
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# Sometimes the bug might not happen the first time the event type is added
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# to the state but might happen when an event updates the state of the room for
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# that type, so we test updating the state several times.
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for i in range(5):
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# Update the content of the custom state event to be sent by the callback.
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event_content["i"] = i
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# Update the room's power levels with a different value each time so Synapse
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# doesn't consider an update redundant.
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self._update_power_levels(event_default=i)
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# Check that the new event made it to the room's state.
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channel = self.make_request(
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method="GET",
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path="/rooms/" + self.room_id + "/state/" + event_type,
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access_token=self.tok,
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)
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self.assertEqual(channel.code, 200)
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self.assertEqual(channel.json_body["i"], i)
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def _update_power_levels(self, event_default: int = 0):
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"""Updates the room's power levels.
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Args:
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event_default: Value to use for 'events_default'.
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"""
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self.helper.send_state(
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room_id=self.room_id,
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event_type=EventTypes.PowerLevels,
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body={
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"ban": 50,
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"events": {
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"m.room.avatar": 50,
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"m.room.canonical_alias": 50,
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"m.room.encryption": 100,
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"m.room.history_visibility": 100,
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"m.room.name": 50,
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"m.room.power_levels": 100,
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"m.room.server_acl": 100,
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"m.room.tombstone": 100,
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},
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"events_default": event_default,
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"invite": 0,
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"kick": 50,
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"redact": 50,
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"state_default": 50,
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"users": {self.user_id: 100},
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"users_default": 0,
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},
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tok=self.tok,
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)
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