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During the migration the automated script to update the copyright headers accidentally got rid of some of the existing copyright lines. Reinstate them.
302 lines
11 KiB
Python
302 lines
11 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright 2022 The Matrix.org Foundation C.I.C.
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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import io
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from typing import Iterable, Optional
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from matrix_common.types.mxc_uri import MXCUri
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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, register, room
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from synapse.server import HomeServer
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from synapse.types import UserID
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from synapse.util import Clock
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from tests import unittest
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from tests.unittest import override_config
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from tests.utils import MockClock
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class MediaRetentionTestCase(unittest.HomeserverTestCase):
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ONE_DAY_IN_MS = 24 * 60 * 60 * 1000
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THIRTY_DAYS_IN_MS = 30 * ONE_DAY_IN_MS
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servlets = [
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room.register_servlets,
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login.register_servlets,
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register.register_servlets,
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admin.register_servlets_for_client_rest_resource,
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]
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def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
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# We need to be able to test advancing time in the homeserver, so we
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# replace the test homeserver's default clock with a MockClock, which
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# supports advancing time.
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return self.setup_test_homeserver(clock=MockClock())
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def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
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self.remote_server_name = "remote.homeserver"
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self.store = hs.get_datastores().main
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# Create a user to upload media with
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test_user_id = self.register_user("alice", "password")
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# Inject media (recently accessed, old access, never accessed, old access
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# quarantined media) into both the local store and the remote cache, plus
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# one additional local media that is marked as protected from quarantine.
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media_repository = hs.get_media_repository()
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test_media_content = b"example string"
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def _create_media_and_set_attributes(
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last_accessed_ms: Optional[int],
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is_quarantined: Optional[bool] = False,
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is_protected: Optional[bool] = False,
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) -> MXCUri:
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# "Upload" some media to the local media store
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mxc_uri: MXCUri = self.get_success(
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media_repository.create_content(
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media_type="text/plain",
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upload_name=None,
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content=io.BytesIO(test_media_content),
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content_length=len(test_media_content),
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auth_user=UserID.from_string(test_user_id),
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)
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)
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# Set the last recently accessed time for this media
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if last_accessed_ms is not None:
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self.get_success(
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self.store.update_cached_last_access_time(
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local_media=(mxc_uri.media_id,),
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remote_media=(),
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time_ms=last_accessed_ms,
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)
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)
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if is_quarantined:
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# Mark this media as quarantined
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self.get_success(
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self.store.quarantine_media_by_id(
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server_name=self.hs.config.server.server_name,
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media_id=mxc_uri.media_id,
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quarantined_by="@theadmin:test",
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)
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)
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if is_protected:
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# Mark this media as protected from quarantine
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self.get_success(
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self.store.mark_local_media_as_safe(
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media_id=mxc_uri.media_id,
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safe=True,
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)
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)
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return mxc_uri
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def _cache_remote_media_and_set_attributes(
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media_id: str,
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last_accessed_ms: Optional[int],
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is_quarantined: Optional[bool] = False,
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) -> MXCUri:
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# Pretend to cache some remote media
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self.get_success(
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self.store.store_cached_remote_media(
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origin=self.remote_server_name,
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media_id=media_id,
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media_type="text/plain",
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media_length=1,
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time_now_ms=clock.time_msec(),
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upload_name="testfile.txt",
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filesystem_id="abcdefg12345",
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)
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)
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# Set the last recently accessed time for this media
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if last_accessed_ms is not None:
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self.get_success(
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hs.get_datastores().main.update_cached_last_access_time(
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local_media=(),
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remote_media=((self.remote_server_name, media_id),),
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time_ms=last_accessed_ms,
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)
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)
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if is_quarantined:
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# Mark this media as quarantined
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self.get_success(
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self.store.quarantine_media_by_id(
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server_name=self.remote_server_name,
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media_id=media_id,
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quarantined_by="@theadmin:test",
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)
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)
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return MXCUri(self.remote_server_name, media_id)
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# Start with the local media store
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self.local_recently_accessed_media = _create_media_and_set_attributes(
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last_accessed_ms=self.THIRTY_DAYS_IN_MS,
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)
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self.local_not_recently_accessed_media = _create_media_and_set_attributes(
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last_accessed_ms=self.ONE_DAY_IN_MS,
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)
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self.local_not_recently_accessed_quarantined_media = (
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_create_media_and_set_attributes(
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last_accessed_ms=self.ONE_DAY_IN_MS,
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is_quarantined=True,
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)
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)
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self.local_not_recently_accessed_protected_media = (
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_create_media_and_set_attributes(
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last_accessed_ms=self.ONE_DAY_IN_MS,
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is_protected=True,
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)
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)
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self.local_never_accessed_media = _create_media_and_set_attributes(
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last_accessed_ms=None,
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)
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# And now the remote media store
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self.remote_recently_accessed_media = _cache_remote_media_and_set_attributes(
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media_id="a",
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last_accessed_ms=self.THIRTY_DAYS_IN_MS,
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)
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self.remote_not_recently_accessed_media = (
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_cache_remote_media_and_set_attributes(
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media_id="b",
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last_accessed_ms=self.ONE_DAY_IN_MS,
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)
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)
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self.remote_not_recently_accessed_quarantined_media = (
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_cache_remote_media_and_set_attributes(
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media_id="c",
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last_accessed_ms=self.ONE_DAY_IN_MS,
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is_quarantined=True,
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)
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)
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# Remote media will always have a "last accessed" attribute, as it would not
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# be fetched from the remote homeserver unless instigated by a user.
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@override_config(
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{
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"media_retention": {
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# Enable retention for local media
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"local_media_lifetime": "30d"
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# Cached remote media should not be purged
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}
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}
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)
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def test_local_media_retention(self) -> None:
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"""
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Tests that local media that have not been accessed recently is purged, while
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cached remote media is unaffected.
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"""
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# Advance 31 days (in seconds)
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self.reactor.advance(31 * 24 * 60 * 60)
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# Check that media has been correctly purged.
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# Local media accessed <30 days ago should still exist.
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# Remote media should be unaffected.
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self._assert_if_mxc_uris_purged(
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purged=[
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self.local_not_recently_accessed_media,
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self.local_never_accessed_media,
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],
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not_purged=[
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self.local_recently_accessed_media,
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self.local_not_recently_accessed_quarantined_media,
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self.local_not_recently_accessed_protected_media,
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self.remote_recently_accessed_media,
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self.remote_not_recently_accessed_media,
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self.remote_not_recently_accessed_quarantined_media,
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],
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)
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@override_config(
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{
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"media_retention": {
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# Enable retention for cached remote media
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"remote_media_lifetime": "30d"
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# Local media should not be purged
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}
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}
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)
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def test_remote_media_cache_retention(self) -> None:
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"""
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Tests that entries from the remote media cache that have not been accessed
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recently is purged, while local media is unaffected.
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"""
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# Advance 31 days (in seconds)
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self.reactor.advance(31 * 24 * 60 * 60)
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# Check that media has been correctly purged.
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# Local media should be unaffected.
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# Remote media accessed <30 days ago should still exist.
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self._assert_if_mxc_uris_purged(
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purged=[
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self.remote_not_recently_accessed_media,
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],
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not_purged=[
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self.remote_recently_accessed_media,
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self.local_recently_accessed_media,
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self.local_not_recently_accessed_media,
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self.local_not_recently_accessed_quarantined_media,
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self.local_not_recently_accessed_protected_media,
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self.remote_not_recently_accessed_quarantined_media,
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self.local_never_accessed_media,
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],
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)
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def _assert_if_mxc_uris_purged(
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self, purged: Iterable[MXCUri], not_purged: Iterable[MXCUri]
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) -> None:
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def _assert_mxc_uri_purge_state(mxc_uri: MXCUri, expect_purged: bool) -> None:
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"""Given an MXC URI, assert whether it has been purged or not."""
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if mxc_uri.server_name == self.hs.config.server.server_name:
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found_media = bool(
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self.get_success(self.store.get_local_media(mxc_uri.media_id))
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)
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else:
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found_media = bool(
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self.get_success(
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self.store.get_cached_remote_media(
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mxc_uri.server_name, mxc_uri.media_id
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)
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)
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)
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if expect_purged:
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self.assertFalse(found_media, msg=f"{mxc_uri} unexpectedly not purged")
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else:
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self.assertTrue(
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found_media,
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msg=f"{mxc_uri} unexpectedly purged",
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)
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# Assert that the given MXC URIs have either been correctly purged or not.
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for mxc_uri in purged:
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_assert_mxc_uri_purge_state(mxc_uri, expect_purged=True)
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for mxc_uri in not_purged:
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_assert_mxc_uri_purge_state(mxc_uri, expect_purged=False)
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