249 lines
		
	
	
		
			8.4 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			249 lines
		
	
	
		
			8.4 KiB
		
	
	
	
		
			Python
		
	
	
# Copyright 2019 Matrix.org Foundation
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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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from unittest.mock import Mock
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from synapse.api.errors import Codes, SynapseError
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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 UserID
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from tests import unittest
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from tests.test_utils import make_awaitable
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class RoomComplexityTests(unittest.FederatingHomeserverTestCase):
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    servlets = [
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        admin.register_servlets,
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        room.register_servlets,
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        login.register_servlets,
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    ]
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    def default_config(self):
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        config = super().default_config()
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        config["limit_remote_rooms"] = {"enabled": True, "complexity": 0.05}
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        return config
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    def test_complexity_simple(self):
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        u1 = self.register_user("u1", "pass")
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        u1_token = self.login("u1", "pass")
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        room_1 = self.helper.create_room_as(u1, tok=u1_token)
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        self.helper.send_state(
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            room_1, event_type="m.room.topic", body={"topic": "foo"}, tok=u1_token
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        )
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        # Get the room complexity
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        channel = self.make_request(
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            "GET", "/_matrix/federation/unstable/rooms/%s/complexity" % (room_1,)
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        )
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        self.assertEquals(200, channel.code)
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        complexity = channel.json_body["v1"]
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        self.assertTrue(complexity > 0, complexity)
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        # Artificially raise the complexity
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        store = self.hs.get_datastore()
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        store.get_current_state_event_counts = lambda x: make_awaitable(500 * 1.23)
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        # Get the room complexity again -- make sure it's our artificial value
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        channel = self.make_request(
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            "GET", "/_matrix/federation/unstable/rooms/%s/complexity" % (room_1,)
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        )
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        self.assertEquals(200, channel.code)
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        complexity = channel.json_body["v1"]
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        self.assertEqual(complexity, 1.23)
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    def test_join_too_large(self):
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        u1 = self.register_user("u1", "pass")
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        handler = self.hs.get_room_member_handler()
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        fed_transport = self.hs.get_federation_transport_client()
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        # Mock out some things, because we don't want to test the whole join
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        fed_transport.client.get_json = Mock(return_value=make_awaitable({"v1": 9999}))
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        handler.federation_handler.do_invite_join = Mock(
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            return_value=make_awaitable(("", 1))
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        )
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        d = handler._remote_join(
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            None,
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            ["other.example.com"],
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            "roomid",
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            UserID.from_string(u1),
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            {"membership": "join"},
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        )
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        self.pump()
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        # The request failed with a SynapseError saying the resource limit was
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        # exceeded.
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        f = self.get_failure(d, SynapseError)
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        self.assertEqual(f.value.code, 400, f.value)
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        self.assertEqual(f.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
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    def test_join_too_large_admin(self):
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        # Check whether an admin can join if option "admins_can_join" is undefined,
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        # this option defaults to false, so the join should fail.
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        u1 = self.register_user("u1", "pass", admin=True)
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        handler = self.hs.get_room_member_handler()
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        fed_transport = self.hs.get_federation_transport_client()
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        # Mock out some things, because we don't want to test the whole join
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        fed_transport.client.get_json = Mock(return_value=make_awaitable({"v1": 9999}))
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        handler.federation_handler.do_invite_join = Mock(
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            return_value=make_awaitable(("", 1))
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        )
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        d = handler._remote_join(
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            None,
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            ["other.example.com"],
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            "roomid",
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            UserID.from_string(u1),
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            {"membership": "join"},
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        )
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        self.pump()
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        # The request failed with a SynapseError saying the resource limit was
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        # exceeded.
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        f = self.get_failure(d, SynapseError)
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        self.assertEqual(f.value.code, 400, f.value)
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        self.assertEqual(f.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
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    def test_join_too_large_once_joined(self):
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        u1 = self.register_user("u1", "pass")
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        u1_token = self.login("u1", "pass")
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        # Ok, this might seem a bit weird -- I want to test that we actually
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        # leave the room, but I don't want to simulate two servers. So, we make
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        # a local room, which we say we're joining remotely, even if there's no
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        # remote, because we mock that out. Then, we'll leave the (actually
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        # local) room, which will be propagated over federation in a real
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        # scenario.
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        room_1 = self.helper.create_room_as(u1, tok=u1_token)
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        handler = self.hs.get_room_member_handler()
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        fed_transport = self.hs.get_federation_transport_client()
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        # Mock out some things, because we don't want to test the whole join
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        fed_transport.client.get_json = Mock(return_value=make_awaitable(None))
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        handler.federation_handler.do_invite_join = Mock(
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            return_value=make_awaitable(("", 1))
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        )
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        # Artificially raise the complexity
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        self.hs.get_datastore().get_current_state_event_counts = (
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            lambda x: make_awaitable(600)
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        )
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        d = handler._remote_join(
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            None,
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            ["other.example.com"],
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            room_1,
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            UserID.from_string(u1),
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            {"membership": "join"},
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        )
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        self.pump()
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        # The request failed with a SynapseError saying the resource limit was
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        # exceeded.
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        f = self.get_failure(d, SynapseError)
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        self.assertEqual(f.value.code, 400)
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        self.assertEqual(f.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
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class RoomComplexityAdminTests(unittest.FederatingHomeserverTestCase):
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    # Test the behavior of joining rooms which exceed the complexity if option
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    # limit_remote_rooms.admins_can_join is True.
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    servlets = [
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        admin.register_servlets,
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        room.register_servlets,
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        login.register_servlets,
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    ]
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    def default_config(self):
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        config = super().default_config()
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        config["limit_remote_rooms"] = {
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            "enabled": True,
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            "complexity": 0.05,
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            "admins_can_join": True,
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        }
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        return config
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    def test_join_too_large_no_admin(self):
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        # A user which is not an admin should not be able to join a remote room
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        # which is too complex.
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        u1 = self.register_user("u1", "pass")
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        handler = self.hs.get_room_member_handler()
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        fed_transport = self.hs.get_federation_transport_client()
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        # Mock out some things, because we don't want to test the whole join
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        fed_transport.client.get_json = Mock(return_value=make_awaitable({"v1": 9999}))
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        handler.federation_handler.do_invite_join = Mock(
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            return_value=make_awaitable(("", 1))
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        )
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        d = handler._remote_join(
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            None,
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            ["other.example.com"],
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            "roomid",
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            UserID.from_string(u1),
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            {"membership": "join"},
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        )
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        self.pump()
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        # The request failed with a SynapseError saying the resource limit was
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        # exceeded.
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        f = self.get_failure(d, SynapseError)
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        self.assertEqual(f.value.code, 400, f.value)
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        self.assertEqual(f.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
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    def test_join_too_large_admin(self):
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        # An admin should be able to join rooms where a complexity check fails.
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        u1 = self.register_user("u1", "pass", admin=True)
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        handler = self.hs.get_room_member_handler()
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        fed_transport = self.hs.get_federation_transport_client()
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        # Mock out some things, because we don't want to test the whole join
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        fed_transport.client.get_json = Mock(return_value=make_awaitable({"v1": 9999}))
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        handler.federation_handler.do_invite_join = Mock(
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            return_value=make_awaitable(("", 1))
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        )
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        d = handler._remote_join(
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            None,
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            ["other.example.com"],
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            "roomid",
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            UserID.from_string(u1),
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            {"membership": "join"},
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        )
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        self.pump()
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        # The request success since the user is an admin
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        self.get_success(d)
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