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https://git.anonymousland.org/anonymousland/synapse.git
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d73bf18d13
Fixes #6815 Before figuring out whether we should alert a user on MAU, we call get_notice_room_for_user to get some info on the existing server notices room for this user. This function, if the room doesn't exist, creates it and invites the user in it. This means that, if we decide later that no server notice is needed, the user gets invited in a room with no message in it. This happens at every restart of the server, since the room ID returned by get_notice_room_for_user is cached. This PR fixes that by moving the inviting bit to a dedicated function, that's only called when the server actually needs to send a notice to the user. A potential issue with this approach is that the room that's created by get_notice_room_for_user doesn't match how that same function looks for an existing room (i.e. it creates a room that doesn't have an invite or a join for the current user in it, so it could lead to a new room being created each time a user syncs), but I'm not sure this is a problem given it's cached until the server restarts, so that function won't run very often. It also renames get_notice_room_for_user into get_or_create_notice_room_for_user to make what it does clearer.
372 lines
15 KiB
Python
372 lines
15 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2018, 2019 New Vector Ltd
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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 mock import Mock
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from twisted.internet import defer
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from synapse.api.constants import EventTypes, LimitBlockingTypes, ServerNoticeMsgType
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from synapse.api.errors import ResourceLimitError
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from synapse.rest import admin
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from synapse.rest.client.v1 import login, room
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from synapse.rest.client.v2_alpha import sync
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from synapse.server_notices.resource_limits_server_notices import (
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ResourceLimitsServerNotices,
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)
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from tests import unittest
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class TestResourceLimitsServerNotices(unittest.HomeserverTestCase):
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def make_homeserver(self, reactor, clock):
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hs_config = self.default_config()
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hs_config["server_notices"] = {
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"system_mxid_localpart": "server",
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"system_mxid_display_name": "test display name",
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"system_mxid_avatar_url": None,
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"room_name": "Server Notices",
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}
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hs = self.setup_test_homeserver(config=hs_config)
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return hs
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def prepare(self, reactor, clock, hs):
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self.server_notices_sender = self.hs.get_server_notices_sender()
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# relying on [1] is far from ideal, but the only case where
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# ResourceLimitsServerNotices class needs to be isolated is this test,
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# general code should never have a reason to do so ...
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self._rlsn = self.server_notices_sender._server_notices[1]
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if not isinstance(self._rlsn, ResourceLimitsServerNotices):
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raise Exception("Failed to find reference to ResourceLimitsServerNotices")
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self._rlsn._store.user_last_seen_monthly_active = Mock(
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return_value=defer.succeed(1000)
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)
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self._send_notice = self._rlsn._server_notices_manager.send_notice
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self._rlsn._server_notices_manager.send_notice = Mock()
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self._rlsn._state.get_current_state = Mock(return_value=defer.succeed(None))
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self._rlsn._store.get_events = Mock(return_value=defer.succeed({}))
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self._send_notice = self._rlsn._server_notices_manager.send_notice
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self.hs.config.limit_usage_by_mau = True
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self.user_id = "@user_id:test"
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# self.server_notices_mxid = "@server:test"
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# self.server_notices_mxid_display_name = None
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# self.server_notices_mxid_avatar_url = None
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# self.server_notices_room_name = "Server Notices"
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self._rlsn._server_notices_manager.get_or_create_notice_room_for_user = Mock(
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returnValue=""
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)
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self._rlsn._store.add_tag_to_room = Mock()
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self._rlsn._store.get_tags_for_room = Mock(return_value={})
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self.hs.config.admin_contact = "mailto:user@test.com"
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def test_maybe_send_server_notice_to_user_flag_off(self):
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"""Tests cases where the flags indicate nothing to do"""
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# test hs disabled case
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self.hs.config.hs_disabled = True
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self.get_success(self._rlsn.maybe_send_server_notice_to_user(self.user_id))
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self._send_notice.assert_not_called()
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# Test when mau limiting disabled
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self.hs.config.hs_disabled = False
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self.hs.config.limit_usage_by_mau = False
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self.get_success(self._rlsn.maybe_send_server_notice_to_user(self.user_id))
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self._send_notice.assert_not_called()
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def test_maybe_send_server_notice_to_user_remove_blocked_notice(self):
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"""Test when user has blocked notice, but should have it removed"""
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self._rlsn._auth.check_auth_blocking = Mock()
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mock_event = Mock(
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type=EventTypes.Message, content={"msgtype": ServerNoticeMsgType}
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)
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self._rlsn._store.get_events = Mock(
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return_value=defer.succeed({"123": mock_event})
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)
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self.get_success(self._rlsn.maybe_send_server_notice_to_user(self.user_id))
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# Would be better to check the content, but once == remove blocking event
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self._send_notice.assert_called_once()
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def test_maybe_send_server_notice_to_user_remove_blocked_notice_noop(self):
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"""
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Test when user has blocked notice, but notice ought to be there (NOOP)
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"""
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self._rlsn._auth.check_auth_blocking = Mock(
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side_effect=ResourceLimitError(403, "foo")
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)
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mock_event = Mock(
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type=EventTypes.Message, content={"msgtype": ServerNoticeMsgType}
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)
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self._rlsn._store.get_events = Mock(
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return_value=defer.succeed({"123": mock_event})
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)
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self.get_success(self._rlsn.maybe_send_server_notice_to_user(self.user_id))
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self._send_notice.assert_not_called()
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def test_maybe_send_server_notice_to_user_add_blocked_notice(self):
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"""
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Test when user does not have blocked notice, but should have one
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"""
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self._rlsn._auth.check_auth_blocking = Mock(
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side_effect=ResourceLimitError(403, "foo")
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)
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self.get_success(self._rlsn.maybe_send_server_notice_to_user(self.user_id))
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# Would be better to check contents, but 2 calls == set blocking event
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self.assertEqual(self._send_notice.call_count, 2)
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def test_maybe_send_server_notice_to_user_add_blocked_notice_noop(self):
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"""
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Test when user does not have blocked notice, nor should they (NOOP)
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"""
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self._rlsn._auth.check_auth_blocking = Mock()
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self.get_success(self._rlsn.maybe_send_server_notice_to_user(self.user_id))
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self._send_notice.assert_not_called()
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def test_maybe_send_server_notice_to_user_not_in_mau_cohort(self):
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"""
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Test when user is not part of the MAU cohort - this should not ever
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happen - but ...
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"""
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self._rlsn._auth.check_auth_blocking = Mock()
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self._rlsn._store.user_last_seen_monthly_active = Mock(
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return_value=defer.succeed(None)
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)
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self.get_success(self._rlsn.maybe_send_server_notice_to_user(self.user_id))
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self._send_notice.assert_not_called()
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def test_maybe_send_server_notice_when_alerting_suppressed_room_unblocked(self):
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"""
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Test that when server is over MAU limit and alerting is suppressed, then
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an alert message is not sent into the room
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"""
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self.hs.config.mau_limit_alerting = False
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self._rlsn._auth.check_auth_blocking = Mock(
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side_effect=ResourceLimitError(
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403, "foo", limit_type=LimitBlockingTypes.MONTHLY_ACTIVE_USER
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)
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)
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self.get_success(self._rlsn.maybe_send_server_notice_to_user(self.user_id))
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self.assertTrue(self._send_notice.call_count == 0)
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def test_check_hs_disabled_unaffected_by_mau_alert_suppression(self):
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"""
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Test that when a server is disabled, that MAU limit alerting is ignored.
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"""
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self.hs.config.mau_limit_alerting = False
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self._rlsn._auth.check_auth_blocking = Mock(
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side_effect=ResourceLimitError(
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403, "foo", limit_type=LimitBlockingTypes.HS_DISABLED
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)
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)
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self.get_success(self._rlsn.maybe_send_server_notice_to_user(self.user_id))
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# Would be better to check contents, but 2 calls == set blocking event
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self.assertEqual(self._send_notice.call_count, 2)
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def test_maybe_send_server_notice_when_alerting_suppressed_room_blocked(self):
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"""
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When the room is already in a blocked state, test that when alerting
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is suppressed that the room is returned to an unblocked state.
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"""
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self.hs.config.mau_limit_alerting = False
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self._rlsn._auth.check_auth_blocking = Mock(
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side_effect=ResourceLimitError(
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403, "foo", limit_type=LimitBlockingTypes.MONTHLY_ACTIVE_USER
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)
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)
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self._rlsn._server_notices_manager.__is_room_currently_blocked = Mock(
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return_value=defer.succeed((True, []))
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)
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mock_event = Mock(
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type=EventTypes.Message, content={"msgtype": ServerNoticeMsgType}
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)
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self._rlsn._store.get_events = Mock(
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return_value=defer.succeed({"123": mock_event})
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)
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self.get_success(self._rlsn.maybe_send_server_notice_to_user(self.user_id))
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self._send_notice.assert_called_once()
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class TestResourceLimitsServerNoticesWithRealRooms(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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sync.register_servlets,
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]
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def default_config(self):
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c = super().default_config()
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c["server_notices"] = {
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"system_mxid_localpart": "server",
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"system_mxid_display_name": None,
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"system_mxid_avatar_url": None,
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"room_name": "Test Server Notice Room",
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}
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c["limit_usage_by_mau"] = True
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c["max_mau_value"] = 5
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c["admin_contact"] = "mailto:user@test.com"
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return c
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def prepare(self, reactor, clock, hs):
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self.store = self.hs.get_datastore()
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self.server_notices_sender = self.hs.get_server_notices_sender()
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self.server_notices_manager = self.hs.get_server_notices_manager()
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self.event_source = self.hs.get_event_sources()
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# relying on [1] is far from ideal, but the only case where
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# ResourceLimitsServerNotices class needs to be isolated is this test,
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# general code should never have a reason to do so ...
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self._rlsn = self.server_notices_sender._server_notices[1]
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if not isinstance(self._rlsn, ResourceLimitsServerNotices):
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raise Exception("Failed to find reference to ResourceLimitsServerNotices")
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self.user_id = "@user_id:test"
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def test_server_notice_only_sent_once(self):
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self.store.get_monthly_active_count = Mock(return_value=1000)
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self.store.user_last_seen_monthly_active = Mock(return_value=1000)
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# Call the function multiple times to ensure we only send the notice once
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self.get_success(self._rlsn.maybe_send_server_notice_to_user(self.user_id))
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self.get_success(self._rlsn.maybe_send_server_notice_to_user(self.user_id))
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self.get_success(self._rlsn.maybe_send_server_notice_to_user(self.user_id))
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# Now lets get the last load of messages in the service notice room and
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# check that there is only one server notice
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room_id = self.get_success(
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self.server_notices_manager.get_or_create_notice_room_for_user(self.user_id)
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)
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token = self.get_success(self.event_source.get_current_token())
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events, _ = self.get_success(
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self.store.get_recent_events_for_room(
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room_id, limit=100, end_token=token.room_key
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)
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)
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count = 0
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for event in events:
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if event.type != EventTypes.Message:
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continue
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if event.content.get("msgtype") != ServerNoticeMsgType:
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continue
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count += 1
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self.assertEqual(count, 1)
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def test_no_invite_without_notice(self):
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"""Tests that a user doesn't get invited to a server notices room without a
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server notice being sent.
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The scenario for this test is a single user on a server where the MAU limit
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hasn't been reached (since it's the only user and the limit is 5), so users
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shouldn't receive a server notice.
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"""
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self.register_user("user", "password")
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tok = self.login("user", "password")
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request, channel = self.make_request("GET", "/sync?timeout=0", access_token=tok)
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self.render(request)
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invites = channel.json_body["rooms"]["invite"]
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self.assertEqual(len(invites), 0, invites)
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def test_invite_with_notice(self):
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"""Tests that, if the MAU limit is hit, the server notices user invites each user
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to a room in which it has sent a notice.
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"""
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user_id, tok, room_id = self._trigger_notice_and_join()
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# Sync again to retrieve the events in the room, so we can check whether this
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# room has a notice in it.
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request, channel = self.make_request("GET", "/sync?timeout=0", access_token=tok)
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self.render(request)
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# Scan the events in the room to search for a message from the server notices
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# user.
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events = channel.json_body["rooms"]["join"][room_id]["timeline"]["events"]
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notice_in_room = False
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for event in events:
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if (
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event["type"] == EventTypes.Message
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and event["sender"] == self.hs.config.server_notices_mxid
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):
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notice_in_room = True
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self.assertTrue(notice_in_room, "No server notice in room")
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def _trigger_notice_and_join(self):
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"""Creates enough active users to hit the MAU limit and trigger a system notice
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about it, then joins the system notices room with one of the users created.
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Returns:
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user_id (str): The ID of the user that joined the room.
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tok (str): The access token of the user that joined the room.
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room_id (str): The ID of the room that's been joined.
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"""
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user_id = None
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tok = None
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invites = []
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# Register as many users as the MAU limit allows.
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for i in range(self.hs.config.max_mau_value):
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localpart = "user%d" % i
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user_id = self.register_user(localpart, "password")
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tok = self.login(localpart, "password")
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# Sync with the user's token to mark the user as active.
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request, channel = self.make_request(
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"GET", "/sync?timeout=0", access_token=tok,
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)
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self.render(request)
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# Also retrieves the list of invites for this user. We don't care about that
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# one except if we're processing the last user, which should have received an
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# invite to a room with a server notice about the MAU limit being reached.
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# We could also pick another user and sync with it, which would return an
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# invite to a system notices room, but it doesn't matter which user we're
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# using so we use the last one because it saves us an extra sync.
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invites = channel.json_body["rooms"]["invite"]
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# Make sure we have an invite to process.
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self.assertEqual(len(invites), 1, invites)
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# Join the room.
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room_id = list(invites.keys())[0]
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self.helper.join(room=room_id, user=user_id, tok=tok)
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return user_id, tok, room_id
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