445 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			445 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			Python
		
	
	
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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# 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 mock import Mock
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from canonicaljson import json
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from twisted.internet import defer
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from synapse.api.constants import EventTypes, Membership
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from synapse.api.room_versions import RoomVersions
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from synapse.types import RoomID, UserID
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from tests import unittest
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from tests.utils import create_room
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class RedactionTestCase(unittest.HomeserverTestCase):
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    def make_homeserver(self, reactor, clock):
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        config = self.default_config()
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        config["redaction_retention_period"] = "30d"
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        return self.setup_test_homeserver(
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            resource_for_federation=Mock(), http_client=None, config=config
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        )
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    def prepare(self, reactor, clock, hs):
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        self.store = hs.get_datastore()
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        self.storage = hs.get_storage()
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        self.event_builder_factory = hs.get_event_builder_factory()
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        self.event_creation_handler = hs.get_event_creation_handler()
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        self.u_alice = UserID.from_string("@alice:test")
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        self.u_bob = UserID.from_string("@bob:test")
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        self.room1 = RoomID.from_string("!abc123:test")
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        self.get_success(
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            create_room(hs, self.room1.to_string(), self.u_alice.to_string())
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        )
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        self.depth = 1
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    def inject_room_member(
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        self, room, user, membership, replaces_state=None, extra_content={}
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    ):
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        content = {"membership": membership}
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        content.update(extra_content)
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        builder = self.event_builder_factory.for_room_version(
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            RoomVersions.V1,
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            {
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                "type": EventTypes.Member,
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                "sender": user.to_string(),
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                "state_key": user.to_string(),
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                "room_id": room.to_string(),
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                "content": content,
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            },
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        )
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        event, context = self.get_success(
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            self.event_creation_handler.create_new_client_event(builder)
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        )
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        self.get_success(self.storage.persistence.persist_event(event, context))
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        return event
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    def inject_message(self, room, user, body):
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        self.depth += 1
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        builder = self.event_builder_factory.for_room_version(
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            RoomVersions.V1,
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            {
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                "type": EventTypes.Message,
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                "sender": user.to_string(),
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                "state_key": user.to_string(),
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                "room_id": room.to_string(),
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                "content": {"body": body, "msgtype": "message"},
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            },
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        )
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        event, context = self.get_success(
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            self.event_creation_handler.create_new_client_event(builder)
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        )
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        self.get_success(self.storage.persistence.persist_event(event, context))
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        return event
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    def inject_redaction(self, room, event_id, user, reason):
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        builder = self.event_builder_factory.for_room_version(
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            RoomVersions.V1,
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            {
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                "type": EventTypes.Redaction,
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                "sender": user.to_string(),
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                "state_key": user.to_string(),
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                "room_id": room.to_string(),
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                "content": {"reason": reason},
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                "redacts": event_id,
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            },
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        )
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        event, context = self.get_success(
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            self.event_creation_handler.create_new_client_event(builder)
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        )
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        self.get_success(self.storage.persistence.persist_event(event, context))
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        return event
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    def test_redact(self):
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        self.get_success(
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            self.inject_room_member(self.room1, self.u_alice, Membership.JOIN)
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        )
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        msg_event = self.get_success(self.inject_message(self.room1, self.u_alice, "t"))
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        # Check event has not been redacted:
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        event = self.get_success(self.store.get_event(msg_event.event_id))
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        self.assertObjectHasAttributes(
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            {
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                "type": EventTypes.Message,
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                "user_id": self.u_alice.to_string(),
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                "content": {"body": "t", "msgtype": "message"},
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            },
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            event,
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        )
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        self.assertFalse("redacted_because" in event.unsigned)
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        # Redact event
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        reason = "Because I said so"
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        self.get_success(
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            self.inject_redaction(self.room1, msg_event.event_id, self.u_alice, reason)
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        )
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        event = self.get_success(self.store.get_event(msg_event.event_id))
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        self.assertEqual(msg_event.event_id, event.event_id)
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        self.assertTrue("redacted_because" in event.unsigned)
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        self.assertObjectHasAttributes(
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            {
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                "type": EventTypes.Message,
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                "user_id": self.u_alice.to_string(),
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                "content": {},
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            },
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            event,
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        )
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        self.assertObjectHasAttributes(
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            {
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                "type": EventTypes.Redaction,
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                "user_id": self.u_alice.to_string(),
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                "content": {"reason": reason},
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            },
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            event.unsigned["redacted_because"],
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        )
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    def test_redact_join(self):
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        self.get_success(
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            self.inject_room_member(self.room1, self.u_alice, Membership.JOIN)
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        )
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        msg_event = self.get_success(
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            self.inject_room_member(
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                self.room1, self.u_bob, Membership.JOIN, extra_content={"blue": "red"}
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            )
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        )
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        event = self.get_success(self.store.get_event(msg_event.event_id))
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        self.assertObjectHasAttributes(
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            {
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                "type": EventTypes.Member,
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                "user_id": self.u_bob.to_string(),
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                "content": {"membership": Membership.JOIN, "blue": "red"},
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            },
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            event,
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        )
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        self.assertFalse(hasattr(event, "redacted_because"))
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        # Redact event
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        reason = "Because I said so"
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        self.get_success(
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            self.inject_redaction(self.room1, msg_event.event_id, self.u_alice, reason)
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        )
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        # Check redaction
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        event = self.get_success(self.store.get_event(msg_event.event_id))
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        self.assertTrue("redacted_because" in event.unsigned)
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        self.assertObjectHasAttributes(
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            {
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                "type": EventTypes.Member,
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                "user_id": self.u_bob.to_string(),
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                "content": {"membership": Membership.JOIN},
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            },
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            event,
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        )
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        self.assertObjectHasAttributes(
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            {
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                "type": EventTypes.Redaction,
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                "user_id": self.u_alice.to_string(),
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                "content": {"reason": reason},
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            },
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            event.unsigned["redacted_because"],
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        )
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    def test_circular_redaction(self):
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        redaction_event_id1 = "$redaction1_id:test"
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        redaction_event_id2 = "$redaction2_id:test"
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        class EventIdManglingBuilder:
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            def __init__(self, base_builder, event_id):
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                self._base_builder = base_builder
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                self._event_id = event_id
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            @defer.inlineCallbacks
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            def build(self, prev_event_ids):
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                built_event = yield defer.ensureDeferred(
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                    self._base_builder.build(prev_event_ids)
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                )
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                built_event._event_id = self._event_id
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                built_event._dict["event_id"] = self._event_id
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                assert built_event.event_id == self._event_id
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                return built_event
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            @property
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            def room_id(self):
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                return self._base_builder.room_id
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            @property
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            def type(self):
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                return self._base_builder.type
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        event_1, context_1 = self.get_success(
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            self.event_creation_handler.create_new_client_event(
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                EventIdManglingBuilder(
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                    self.event_builder_factory.for_room_version(
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                        RoomVersions.V1,
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                        {
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                            "type": EventTypes.Redaction,
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                            "sender": self.u_alice.to_string(),
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                            "room_id": self.room1.to_string(),
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                            "content": {"reason": "test"},
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                            "redacts": redaction_event_id2,
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                        },
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                    ),
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                    redaction_event_id1,
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                )
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            )
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        )
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        self.get_success(self.storage.persistence.persist_event(event_1, context_1))
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        event_2, context_2 = self.get_success(
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            self.event_creation_handler.create_new_client_event(
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                EventIdManglingBuilder(
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                    self.event_builder_factory.for_room_version(
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                        RoomVersions.V1,
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                        {
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                            "type": EventTypes.Redaction,
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                            "sender": self.u_alice.to_string(),
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                            "room_id": self.room1.to_string(),
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                            "content": {"reason": "test"},
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                            "redacts": redaction_event_id1,
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                        },
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                    ),
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                    redaction_event_id2,
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                )
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            )
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        )
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        self.get_success(self.storage.persistence.persist_event(event_2, context_2))
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        # fetch one of the redactions
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        fetched = self.get_success(self.store.get_event(redaction_event_id1))
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        # it should have been redacted
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        self.assertEqual(fetched.unsigned["redacted_by"], redaction_event_id2)
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        self.assertEqual(
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            fetched.unsigned["redacted_because"].event_id, redaction_event_id2
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        )
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    def test_redact_censor(self):
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        """Test that a redacted event gets censored in the DB after a month
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        """
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        self.get_success(
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            self.inject_room_member(self.room1, self.u_alice, Membership.JOIN)
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        )
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        msg_event = self.get_success(self.inject_message(self.room1, self.u_alice, "t"))
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        # Check event has not been redacted:
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        event = self.get_success(self.store.get_event(msg_event.event_id))
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        self.assertObjectHasAttributes(
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            {
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                "type": EventTypes.Message,
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                "user_id": self.u_alice.to_string(),
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                "content": {"body": "t", "msgtype": "message"},
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            },
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            event,
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        )
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        self.assertFalse("redacted_because" in event.unsigned)
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        # Redact event
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        reason = "Because I said so"
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        self.get_success(
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            self.inject_redaction(self.room1, msg_event.event_id, self.u_alice, reason)
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        )
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        event = self.get_success(self.store.get_event(msg_event.event_id))
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        self.assertTrue("redacted_because" in event.unsigned)
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        self.assertObjectHasAttributes(
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            {
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                "type": EventTypes.Message,
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                "user_id": self.u_alice.to_string(),
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                "content": {},
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            },
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            event,
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        )
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        event_json = self.get_success(
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            self.store.db_pool.simple_select_one_onecol(
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                table="event_json",
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                keyvalues={"event_id": msg_event.event_id},
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                retcol="json",
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            )
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        )
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        self.assert_dict(
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            {"content": {"body": "t", "msgtype": "message"}}, json.loads(event_json)
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        )
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        # Advance by 30 days, then advance again to ensure that the looping call
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        # for updating the stream position gets called and then the looping call
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        # for the censoring gets called.
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        self.reactor.advance(60 * 60 * 24 * 31)
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        self.reactor.advance(60 * 60 * 2)
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        event_json = self.get_success(
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            self.store.db_pool.simple_select_one_onecol(
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                table="event_json",
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                keyvalues={"event_id": msg_event.event_id},
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                retcol="json",
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            )
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        )
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        self.assert_dict({"content": {}}, json.loads(event_json))
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    def test_redact_redaction(self):
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        """Tests that we can redact a redaction and can fetch it again.
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        """
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        self.get_success(
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            self.inject_room_member(self.room1, self.u_alice, Membership.JOIN)
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        )
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        msg_event = self.get_success(self.inject_message(self.room1, self.u_alice, "t"))
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        first_redact_event = self.get_success(
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            self.inject_redaction(
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                self.room1, msg_event.event_id, self.u_alice, "Redacting message"
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            )
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        )
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        self.get_success(
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            self.inject_redaction(
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                self.room1,
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                first_redact_event.event_id,
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                self.u_alice,
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                "Redacting redaction",
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            )
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        )
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        # Now lets jump to the future where we have censored the redaction event
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        # in the DB.
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        self.reactor.advance(60 * 60 * 24 * 31)
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        # We just want to check that fetching the event doesn't raise an exception.
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        self.get_success(
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            self.store.get_event(first_redact_event.event_id, allow_none=True)
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        )
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    def test_store_redacted_redaction(self):
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        """Tests that we can store a redacted redaction.
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        """
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        self.get_success(
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            self.inject_room_member(self.room1, self.u_alice, Membership.JOIN)
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        )
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        builder = self.event_builder_factory.for_room_version(
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            RoomVersions.V1,
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            {
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                "type": EventTypes.Redaction,
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                "sender": self.u_alice.to_string(),
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                "room_id": self.room1.to_string(),
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                "content": {"reason": "foo"},
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            },
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        )
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        redaction_event, context = self.get_success(
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            self.event_creation_handler.create_new_client_event(builder)
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        )
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        self.get_success(
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            self.storage.persistence.persist_event(redaction_event, context)
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        )
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        # Now lets jump to the future where we have censored the redaction event
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        # in the DB.
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        self.reactor.advance(60 * 60 * 24 * 31)
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        # We just want to check that fetching the event doesn't raise an exception.
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        self.get_success(
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            self.store.get_event(redaction_event.event_id, allow_none=True)
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        )
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