204 lines
8.1 KiB
Python
204 lines
8.1 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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from typing import List
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from twisted.test.proto_helpers import MemoryReactor
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from synapse.rest import admin
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from synapse.rest.client import login, room, sync
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from synapse.server import HomeServer
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from synapse.types import JsonDict
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from synapse.util import Clock
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from tests.unittest import HomeserverTestCase
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class RedactionsTestCase(HomeserverTestCase):
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"""Tests that various redaction events are handled correctly"""
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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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sync.register_servlets,
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]
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def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
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config = self.default_config()
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config["rc_message"] = {"per_second": 0.2, "burst_count": 10}
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config["rc_admin_redaction"] = {"per_second": 1, "burst_count": 100}
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return self.setup_test_homeserver(config=config)
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def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
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# register a couple of users
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self.mod_user_id = self.register_user("user1", "pass")
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self.mod_access_token = self.login("user1", "pass")
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self.other_user_id = self.register_user("otheruser", "pass")
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self.other_access_token = self.login("otheruser", "pass")
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# Create a room
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self.room_id = self.helper.create_room_as(
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self.mod_user_id, tok=self.mod_access_token
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)
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# Invite the other user
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self.helper.invite(
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room=self.room_id,
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src=self.mod_user_id,
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tok=self.mod_access_token,
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targ=self.other_user_id,
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)
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# The other user joins
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self.helper.join(
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room=self.room_id, user=self.other_user_id, tok=self.other_access_token
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)
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def _redact_event(
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self, access_token: str, room_id: str, event_id: str, expect_code: int = 200
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) -> JsonDict:
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"""Helper function to send a redaction event.
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Returns the json body.
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"""
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path = "/_matrix/client/r0/rooms/%s/redact/%s" % (room_id, event_id)
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channel = self.make_request("POST", path, content={}, access_token=access_token)
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self.assertEqual(channel.code, expect_code)
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return channel.json_body
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def _sync_room_timeline(self, access_token: str, room_id: str) -> List[JsonDict]:
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channel = self.make_request("GET", "sync", access_token=self.mod_access_token)
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self.assertEqual(channel.code, 200)
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room_sync = channel.json_body["rooms"]["join"][room_id]
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return room_sync["timeline"]["events"]
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def test_redact_event_as_moderator(self) -> None:
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# as a regular user, send a message to redact
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b = self.helper.send(room_id=self.room_id, tok=self.other_access_token)
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msg_id = b["event_id"]
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# as the moderator, send a redaction
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b = self._redact_event(self.mod_access_token, self.room_id, msg_id)
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redaction_id = b["event_id"]
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# now sync
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timeline = self._sync_room_timeline(self.mod_access_token, self.room_id)
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# the last event should be the redaction
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self.assertEqual(timeline[-1]["event_id"], redaction_id)
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self.assertEqual(timeline[-1]["redacts"], msg_id)
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# and the penultimate should be the redacted original
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self.assertEqual(timeline[-2]["event_id"], msg_id)
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self.assertEqual(timeline[-2]["unsigned"]["redacted_by"], redaction_id)
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self.assertEqual(timeline[-2]["content"], {})
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def test_redact_event_as_normal(self) -> None:
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# as a regular user, send a message to redact
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b = self.helper.send(room_id=self.room_id, tok=self.other_access_token)
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normal_msg_id = b["event_id"]
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# also send one as the admin
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b = self.helper.send(room_id=self.room_id, tok=self.mod_access_token)
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admin_msg_id = b["event_id"]
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# as a normal, try to redact the admin's event
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self._redact_event(
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self.other_access_token, self.room_id, admin_msg_id, expect_code=403
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)
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# now try to redact our own event
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b = self._redact_event(self.other_access_token, self.room_id, normal_msg_id)
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redaction_id = b["event_id"]
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# now sync
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timeline = self._sync_room_timeline(self.other_access_token, self.room_id)
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# the last event should be the redaction of the normal event
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self.assertEqual(timeline[-1]["event_id"], redaction_id)
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self.assertEqual(timeline[-1]["redacts"], normal_msg_id)
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# the penultimate should be the unredacted one from the admin
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self.assertEqual(timeline[-2]["event_id"], admin_msg_id)
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self.assertNotIn("redacted_by", timeline[-2]["unsigned"])
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self.assertTrue(timeline[-2]["content"]["body"], {})
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# and the antepenultimate should be the redacted normal
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self.assertEqual(timeline[-3]["event_id"], normal_msg_id)
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self.assertEqual(timeline[-3]["unsigned"]["redacted_by"], redaction_id)
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self.assertEqual(timeline[-3]["content"], {})
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def test_redact_nonexistent_event(self) -> None:
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# control case: an existing event
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b = self.helper.send(room_id=self.room_id, tok=self.other_access_token)
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msg_id = b["event_id"]
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b = self._redact_event(self.other_access_token, self.room_id, msg_id)
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redaction_id = b["event_id"]
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# room moderators can send redactions for non-existent events
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self._redact_event(self.mod_access_token, self.room_id, "$zzz")
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# ... but normals cannot
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self._redact_event(
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self.other_access_token, self.room_id, "$zzz", expect_code=404
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)
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# when we sync, we should see only the valid redaction
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timeline = self._sync_room_timeline(self.other_access_token, self.room_id)
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self.assertEqual(timeline[-1]["event_id"], redaction_id)
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self.assertEqual(timeline[-1]["redacts"], msg_id)
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# and the penultimate should be the redacted original
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self.assertEqual(timeline[-2]["event_id"], msg_id)
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self.assertEqual(timeline[-2]["unsigned"]["redacted_by"], redaction_id)
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self.assertEqual(timeline[-2]["content"], {})
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def test_redact_create_event(self) -> None:
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# control case: an existing event
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b = self.helper.send(room_id=self.room_id, tok=self.mod_access_token)
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msg_id = b["event_id"]
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self._redact_event(self.mod_access_token, self.room_id, msg_id)
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# sync the room, to get the id of the create event
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timeline = self._sync_room_timeline(self.other_access_token, self.room_id)
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create_event_id = timeline[0]["event_id"]
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# room moderators cannot send redactions for create events
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self._redact_event(
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self.mod_access_token, self.room_id, create_event_id, expect_code=403
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)
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# and nor can normals
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self._redact_event(
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self.other_access_token, self.room_id, create_event_id, expect_code=403
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)
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def test_redact_event_as_moderator_ratelimit(self) -> None:
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"""Tests that the correct ratelimiting is applied to redactions"""
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message_ids = []
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# as a regular user, send messages to redact
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for _ in range(20):
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b = self.helper.send(room_id=self.room_id, tok=self.other_access_token)
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message_ids.append(b["event_id"])
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self.reactor.advance(10) # To get around ratelimits
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# as the moderator, send a bunch of redactions
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for msg_id in message_ids:
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# These should all succeed, even though this would be denied by
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# the standard message ratelimiter
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self._redact_event(self.mod_access_token, self.room_id, msg_id)
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