From e62cdbef1a499f428e48f98167b2b709d16c671d Mon Sep 17 00:00:00 2001 From: Dirk Klimpel <5740567+dklimpel@users.noreply.github.com> Date: Fri, 27 Aug 2021 11:16:40 +0200 Subject: [PATCH] Improve ServerNoticeServlet to avoid duplicate requests (#10679) Fixes: #9544 --- changelog.d/10679.bugfix | 1 + synapse/rest/admin/__init__.py | 5 +- synapse/rest/admin/server_notice_servlet.py | 19 +- .../server_notices/server_notices_manager.py | 17 +- tests/rest/admin/test_server_notice.py | 450 ++++++++++++++++++ 5 files changed, 475 insertions(+), 17 deletions(-) create mode 100644 changelog.d/10679.bugfix create mode 100644 tests/rest/admin/test_server_notice.py diff --git a/changelog.d/10679.bugfix b/changelog.d/10679.bugfix new file mode 100644 index 000000000..5c4061f6d --- /dev/null +++ b/changelog.d/10679.bugfix @@ -0,0 +1 @@ +Improve ServerNoticeServlet to avoid duplicate requests and add unit tests. \ No newline at end of file diff --git a/synapse/rest/admin/__init__.py b/synapse/rest/admin/__init__.py index 6e1c8736e..b2514d9d0 100644 --- a/synapse/rest/admin/__init__.py +++ b/synapse/rest/admin/__init__.py @@ -223,7 +223,6 @@ def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None: RoomMembersRestServlet(hs).register(http_server) DeleteRoomRestServlet(hs).register(http_server) JoinRoomAliasServlet(hs).register(http_server) - SendServerNoticeServlet(hs).register(http_server) VersionServlet(hs).register(http_server) UserAdminServlet(hs).register(http_server) UserMembershipRestServlet(hs).register(http_server) @@ -247,6 +246,10 @@ def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None: NewRegistrationTokenRestServlet(hs).register(http_server) RegistrationTokenRestServlet(hs).register(http_server) + # Some servlets only get registered for the main process. + if hs.config.worker_app is None: + SendServerNoticeServlet(hs).register(http_server) + def register_servlets_for_client_rest_resource( hs: "HomeServer", http_server: HttpServer diff --git a/synapse/rest/admin/server_notice_servlet.py b/synapse/rest/admin/server_notice_servlet.py index b5e4c474e..42201afc8 100644 --- a/synapse/rest/admin/server_notice_servlet.py +++ b/synapse/rest/admin/server_notice_servlet.py @@ -14,7 +14,7 @@ from typing import TYPE_CHECKING, Optional, Tuple from synapse.api.constants import EventTypes -from synapse.api.errors import SynapseError +from synapse.api.errors import NotFoundError, SynapseError from synapse.http.server import HttpServer from synapse.http.servlet import ( RestServlet, @@ -53,6 +53,8 @@ class SendServerNoticeServlet(RestServlet): def __init__(self, hs: "HomeServer"): self.hs = hs self.auth = hs.get_auth() + self.server_notices_manager = hs.get_server_notices_manager() + self.admin_handler = hs.get_admin_handler() self.txns = HttpTransactionCache(hs) def register(self, json_resource: HttpServer): @@ -79,19 +81,22 @@ class SendServerNoticeServlet(RestServlet): # We grab the server notices manager here as its initialisation has a check for worker processes, # but worker processes still need to initialise SendServerNoticeServlet (as it is part of the # admin api). - if not self.hs.get_server_notices_manager().is_enabled(): + if not self.server_notices_manager.is_enabled(): raise SynapseError(400, "Server notices are not enabled on this server") - user_id = body["user_id"] - UserID.from_string(user_id) - if not self.hs.is_mine_id(user_id): + target_user = UserID.from_string(body["user_id"]) + if not self.hs.is_mine(target_user): raise SynapseError(400, "Server notices can only be sent to local users") - event = await self.hs.get_server_notices_manager().send_notice( - user_id=body["user_id"], + if not await self.admin_handler.get_user(target_user): + raise NotFoundError("User not found") + + event = await self.server_notices_manager.send_notice( + user_id=target_user.to_string(), type=event_type, state_key=state_key, event_content=body["content"], + txn_id=txn_id, ) return 200, {"event_id": event.event_id} diff --git a/synapse/server_notices/server_notices_manager.py b/synapse/server_notices/server_notices_manager.py index f19075b76..d87a53891 100644 --- a/synapse/server_notices/server_notices_manager.py +++ b/synapse/server_notices/server_notices_manager.py @@ -12,26 +12,23 @@ # See the License for the specific language governing permissions and # limitations under the License. import logging -from typing import Optional +from typing import TYPE_CHECKING, Optional from synapse.api.constants import EventTypes, Membership, RoomCreationPreset from synapse.events import EventBase from synapse.types import UserID, create_requester from synapse.util.caches.descriptors import cached +if TYPE_CHECKING: + from synapse.server import HomeServer + logger = logging.getLogger(__name__) SERVER_NOTICE_ROOM_TAG = "m.server_notice" class ServerNoticesManager: - def __init__(self, hs): - """ - - Args: - hs (synapse.server.HomeServer): - """ - + def __init__(self, hs: "HomeServer"): self._store = hs.get_datastore() self._config = hs.config self._account_data_handler = hs.get_account_data_handler() @@ -58,6 +55,7 @@ class ServerNoticesManager: event_content: dict, type: str = EventTypes.Message, state_key: Optional[str] = None, + txn_id: Optional[str] = None, ) -> EventBase: """Send a notice to the given user @@ -68,6 +66,7 @@ class ServerNoticesManager: event_content: content of event to send type: type of event is_state_event: Is the event a state event + txn_id: The transaction ID. """ room_id = await self.get_or_create_notice_room_for_user(user_id) await self.maybe_invite_user_to_room(user_id, room_id) @@ -90,7 +89,7 @@ class ServerNoticesManager: event_dict["state_key"] = state_key event, _ = await self._event_creation_handler.create_and_send_nonmember_event( - requester, event_dict, ratelimit=False + requester, event_dict, ratelimit=False, txn_id=txn_id ) return event diff --git a/tests/rest/admin/test_server_notice.py b/tests/rest/admin/test_server_notice.py new file mode 100644 index 000000000..fbceba325 --- /dev/null +++ b/tests/rest/admin/test_server_notice.py @@ -0,0 +1,450 @@ +# Copyright 2021 Dirk Klimpel +# +# 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. + +from typing import List + +import synapse.rest.admin +from synapse.api.errors import Codes +from synapse.rest.client import login, room, sync +from synapse.storage.roommember import RoomsForUser +from synapse.types import JsonDict + +from tests import unittest +from tests.unittest import override_config + + +class ServerNoticeTestCase(unittest.HomeserverTestCase): + + servlets = [ + synapse.rest.admin.register_servlets, + login.register_servlets, + room.register_servlets, + sync.register_servlets, + ] + + def prepare(self, reactor, clock, hs): + self.store = hs.get_datastore() + self.room_shutdown_handler = hs.get_room_shutdown_handler() + self.pagination_handler = hs.get_pagination_handler() + self.server_notices_manager = self.hs.get_server_notices_manager() + + # Create user + self.admin_user = self.register_user("admin", "pass", admin=True) + self.admin_user_tok = self.login("admin", "pass") + + self.other_user = self.register_user("user", "pass") + self.other_user_token = self.login("user", "pass") + + self.url = "/_synapse/admin/v1/send_server_notice" + + def test_no_auth(self): + """Try to send a server notice without authentication.""" + channel = self.make_request("POST", self.url) + + self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"]) + + def test_requester_is_no_admin(self): + """If the user is not a server admin, an error is returned.""" + channel = self.make_request( + "POST", + self.url, + access_token=self.other_user_token, + ) + + self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"]) + + @override_config({"server_notices": {"system_mxid_localpart": "notices"}}) + def test_user_does_not_exist(self): + """Tests that a lookup for a user that does not exist returns a 404""" + channel = self.make_request( + "POST", + self.url, + access_token=self.admin_user_tok, + content={"user_id": "@unknown_person:test", "content": ""}, + ) + + self.assertEqual(404, channel.code, msg=channel.json_body) + self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"]) + + @override_config({"server_notices": {"system_mxid_localpart": "notices"}}) + def test_user_is_not_local(self): + """ + Tests that a lookup for a user that is not a local returns a 400 + """ + channel = self.make_request( + "POST", + self.url, + access_token=self.admin_user_tok, + content={ + "user_id": "@unknown_person:unknown_domain", + "content": "", + }, + ) + + self.assertEqual(400, channel.code, msg=channel.json_body) + self.assertEqual( + "Server notices can only be sent to local users", channel.json_body["error"] + ) + + @override_config({"server_notices": {"system_mxid_localpart": "notices"}}) + def test_invalid_parameter(self): + """If parameters are invalid, an error is returned.""" + + # no content, no user + channel = self.make_request( + "POST", + self.url, + access_token=self.admin_user_tok, + ) + + self.assertEqual(400, channel.code, msg=channel.json_body) + self.assertEqual(Codes.NOT_JSON, channel.json_body["errcode"]) + + # no content + channel = self.make_request( + "POST", + self.url, + access_token=self.admin_user_tok, + content={"user_id": self.other_user}, + ) + + self.assertEqual(400, channel.code, msg=channel.json_body) + self.assertEqual(Codes.MISSING_PARAM, channel.json_body["errcode"]) + + # no body + channel = self.make_request( + "POST", + self.url, + access_token=self.admin_user_tok, + content={"user_id": self.other_user, "content": ""}, + ) + + self.assertEqual(400, channel.code, msg=channel.json_body) + self.assertEqual(Codes.UNKNOWN, channel.json_body["errcode"]) + self.assertEqual("'body' not in content", channel.json_body["error"]) + + # no msgtype + channel = self.make_request( + "POST", + self.url, + access_token=self.admin_user_tok, + content={"user_id": self.other_user, "content": {"body": ""}}, + ) + + self.assertEqual(400, channel.code, msg=channel.json_body) + self.assertEqual(Codes.UNKNOWN, channel.json_body["errcode"]) + self.assertEqual("'msgtype' not in content", channel.json_body["error"]) + + def test_server_notice_disabled(self): + """Tests that server returns error if server notice is disabled""" + channel = self.make_request( + "POST", + self.url, + access_token=self.admin_user_tok, + content={ + "user_id": self.other_user, + "content": "", + }, + ) + + self.assertEqual(400, channel.code, msg=channel.json_body) + self.assertEqual(Codes.UNKNOWN, channel.json_body["errcode"]) + self.assertEqual( + "Server notices are not enabled on this server", channel.json_body["error"] + ) + + @override_config({"server_notices": {"system_mxid_localpart": "notices"}}) + def test_send_server_notice(self): + """ + Tests that sending two server notices is successfully, + the server uses the same room and do not send messages twice. + """ + # user has no room memberships + self._check_invite_and_join_status(self.other_user, 0, 0) + + # send first message + channel = self.make_request( + "POST", + self.url, + access_token=self.admin_user_tok, + content={ + "user_id": self.other_user, + "content": {"msgtype": "m.text", "body": "test msg one"}, + }, + ) + self.assertEqual(200, channel.code, msg=channel.json_body) + + # user has one invite + invited_rooms = self._check_invite_and_join_status(self.other_user, 1, 0) + room_id = invited_rooms[0].room_id + + # user joins the room and is member now + self.helper.join(room=room_id, user=self.other_user, tok=self.other_user_token) + self._check_invite_and_join_status(self.other_user, 0, 1) + + # get messages + messages = self._sync_and_get_messages(room_id, self.other_user_token) + self.assertEqual(len(messages), 1) + self.assertEqual(messages[0]["content"]["body"], "test msg one") + self.assertEqual(messages[0]["sender"], "@notices:test") + + # invalidate cache of server notices room_ids + self.get_success( + self.server_notices_manager.get_or_create_notice_room_for_user.invalidate_all() + ) + + # send second message + channel = self.make_request( + "POST", + self.url, + access_token=self.admin_user_tok, + content={ + "user_id": self.other_user, + "content": {"msgtype": "m.text", "body": "test msg two"}, + }, + ) + self.assertEqual(200, channel.code, msg=channel.json_body) + + # user has no new invites or memberships + self._check_invite_and_join_status(self.other_user, 0, 1) + + # get messages + messages = self._sync_and_get_messages(room_id, self.other_user_token) + + self.assertEqual(len(messages), 2) + self.assertEqual(messages[0]["content"]["body"], "test msg one") + self.assertEqual(messages[0]["sender"], "@notices:test") + self.assertEqual(messages[1]["content"]["body"], "test msg two") + self.assertEqual(messages[1]["sender"], "@notices:test") + + @override_config({"server_notices": {"system_mxid_localpart": "notices"}}) + def test_send_server_notice_leave_room(self): + """ + Tests that sending a server notices is successfully. + The user leaves the room and the second message appears + in a new room. + """ + # user has no room memberships + self._check_invite_and_join_status(self.other_user, 0, 0) + + # send first message + channel = self.make_request( + "POST", + self.url, + access_token=self.admin_user_tok, + content={ + "user_id": self.other_user, + "content": {"msgtype": "m.text", "body": "test msg one"}, + }, + ) + self.assertEqual(200, channel.code, msg=channel.json_body) + + # user has one invite + invited_rooms = self._check_invite_and_join_status(self.other_user, 1, 0) + first_room_id = invited_rooms[0].room_id + + # user joins the room and is member now + self.helper.join( + room=first_room_id, user=self.other_user, tok=self.other_user_token + ) + self._check_invite_and_join_status(self.other_user, 0, 1) + + # get messages + messages = self._sync_and_get_messages(first_room_id, self.other_user_token) + self.assertEqual(len(messages), 1) + self.assertEqual(messages[0]["content"]["body"], "test msg one") + self.assertEqual(messages[0]["sender"], "@notices:test") + + # user leaves the romm + self.helper.leave( + room=first_room_id, user=self.other_user, tok=self.other_user_token + ) + + # user is not member anymore + self._check_invite_and_join_status(self.other_user, 0, 0) + + # invalidate cache of server notices room_ids + # if server tries to send to a cached room_id the user gets the message + # in old room + self.get_success( + self.server_notices_manager.get_or_create_notice_room_for_user.invalidate_all() + ) + + # send second message + channel = self.make_request( + "POST", + self.url, + access_token=self.admin_user_tok, + content={ + "user_id": self.other_user, + "content": {"msgtype": "m.text", "body": "test msg two"}, + }, + ) + self.assertEqual(200, channel.code, msg=channel.json_body) + + # user has one invite + invited_rooms = self._check_invite_and_join_status(self.other_user, 1, 0) + second_room_id = invited_rooms[0].room_id + + # user joins the room and is member now + self.helper.join( + room=second_room_id, user=self.other_user, tok=self.other_user_token + ) + self._check_invite_and_join_status(self.other_user, 0, 1) + + # get messages + messages = self._sync_and_get_messages(second_room_id, self.other_user_token) + + self.assertEqual(len(messages), 1) + self.assertEqual(messages[0]["content"]["body"], "test msg two") + self.assertEqual(messages[0]["sender"], "@notices:test") + # room has the same id + self.assertNotEqual(first_room_id, second_room_id) + + @override_config({"server_notices": {"system_mxid_localpart": "notices"}}) + def test_send_server_notice_delete_room(self): + """ + Tests that the user get server notice in a new room + after the first server notice room was deleted. + """ + # user has no room memberships + self._check_invite_and_join_status(self.other_user, 0, 0) + + # send first message + channel = self.make_request( + "POST", + self.url, + access_token=self.admin_user_tok, + content={ + "user_id": self.other_user, + "content": {"msgtype": "m.text", "body": "test msg one"}, + }, + ) + self.assertEqual(200, channel.code, msg=channel.json_body) + + # user has one invite + invited_rooms = self._check_invite_and_join_status(self.other_user, 1, 0) + first_room_id = invited_rooms[0].room_id + + # user joins the room and is member now + self.helper.join( + room=first_room_id, user=self.other_user, tok=self.other_user_token + ) + self._check_invite_and_join_status(self.other_user, 0, 1) + + # get messages + messages = self._sync_and_get_messages(first_room_id, self.other_user_token) + self.assertEqual(len(messages), 1) + self.assertEqual(messages[0]["content"]["body"], "test msg one") + self.assertEqual(messages[0]["sender"], "@notices:test") + + # shut down and purge room + self.get_success( + self.room_shutdown_handler.shutdown_room(first_room_id, self.admin_user) + ) + self.get_success(self.pagination_handler.purge_room(first_room_id)) + + # user is not member anymore + self._check_invite_and_join_status(self.other_user, 0, 0) + + # It doesn't really matter what API we use here, we just want to assert + # that the room doesn't exist. + summary = self.get_success(self.store.get_room_summary(first_room_id)) + # The summary should be empty since the room doesn't exist. + self.assertEqual(summary, {}) + + # invalidate cache of server notices room_ids + # if server tries to send to a cached room_id it gives an error + self.get_success( + self.server_notices_manager.get_or_create_notice_room_for_user.invalidate_all() + ) + + # send second message + channel = self.make_request( + "POST", + self.url, + access_token=self.admin_user_tok, + content={ + "user_id": self.other_user, + "content": {"msgtype": "m.text", "body": "test msg two"}, + }, + ) + self.assertEqual(200, channel.code, msg=channel.json_body) + + # user has one invite + invited_rooms = self._check_invite_and_join_status(self.other_user, 1, 0) + second_room_id = invited_rooms[0].room_id + + # user joins the room and is member now + self.helper.join( + room=second_room_id, user=self.other_user, tok=self.other_user_token + ) + self._check_invite_and_join_status(self.other_user, 0, 1) + + # get message + messages = self._sync_and_get_messages(second_room_id, self.other_user_token) + + self.assertEqual(len(messages), 1) + self.assertEqual(messages[0]["content"]["body"], "test msg two") + self.assertEqual(messages[0]["sender"], "@notices:test") + # second room has new ID + self.assertNotEqual(first_room_id, second_room_id) + + def _check_invite_and_join_status( + self, user_id: str, expected_invites: int, expected_memberships: int + ) -> RoomsForUser: + """Check invite and room membership status of a user. + + Args + user_id: user to check + expected_invites: number of expected invites of this user + expected_memberships: number of expected room memberships of this user + Returns + room_ids from the rooms that the user is invited + """ + + invited_rooms = self.get_success( + self.store.get_invited_rooms_for_local_user(user_id) + ) + self.assertEqual(expected_invites, len(invited_rooms)) + + room_ids = self.get_success(self.store.get_rooms_for_user(user_id)) + self.assertEqual(expected_memberships, len(room_ids)) + + return invited_rooms + + def _sync_and_get_messages(self, room_id: str, token: str) -> List[JsonDict]: + """ + Do a sync and get messages of a room. + + Args + room_id: room that contains the messages + token: access token of user + + Returns + list of messages contained in the room + """ + channel = self.make_request( + "GET", "/_matrix/client/r0/sync", access_token=token + ) + self.assertEqual(channel.code, 200) + + # Get the messages + room = channel.json_body["rooms"]["join"][room_id] + messages = [ + x for x in room["timeline"]["events"] if x["type"] == "m.room.message" + ] + return messages