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bb5a692946
When a module rejects a piece of media we end up trying to close the same logging context twice. Instead of fixing the existing code we refactor to use an async context manager, which is easier to write correctly.
146 lines
5.1 KiB
Python
146 lines
5.1 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 2023 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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from typing import Dict
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from twisted.test.proto_helpers import MemoryReactor
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from twisted.web.resource import Resource
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from synapse.media._base import FileInfo
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from synapse.server import HomeServer
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from synapse.util import Clock
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from tests import unittest
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from tests.test_utils import SMALL_PNG
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from tests.unittest import override_config
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class MediaDomainBlockingTests(unittest.HomeserverTestCase):
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remote_media_id = "doesnotmatter"
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remote_server_name = "evil.com"
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def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
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self.store = hs.get_datastores().main
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# Inject a piece of media. We'll use this to ensure we're returning a sane
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# response when we're not supposed to block it, distinguishing a media block
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# from a regular 404.
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file_id = "abcdefg12345"
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file_info = FileInfo(server_name=self.remote_server_name, file_id=file_id)
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media_storage = hs.get_media_repository().media_storage
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ctx = media_storage.store_into_file(file_info)
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(f, fname) = self.get_success(ctx.__aenter__())
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f.write(SMALL_PNG)
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self.get_success(ctx.__aexit__(None, None, None))
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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=self.remote_media_id,
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media_type="image/png",
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media_length=1,
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time_now_ms=clock.time_msec(),
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upload_name="test.png",
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filesystem_id=file_id,
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)
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)
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def create_resource_dict(self) -> Dict[str, Resource]:
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# We need to manually set the resource tree to include media, the
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# default only does `/_matrix/client` APIs.
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return {"/_matrix/media": self.hs.get_media_repository_resource()}
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@override_config(
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{
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# Disable downloads from the domain we'll be trying to download from.
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# Should result in a 404.
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"prevent_media_downloads_from": ["evil.com"]
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}
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)
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def test_cannot_download_blocked_media(self) -> None:
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"""
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Tests to ensure that remote media which is blocked cannot be downloaded.
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"""
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response = self.make_request(
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"GET",
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f"/_matrix/media/v3/download/evil.com/{self.remote_media_id}",
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shorthand=False,
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)
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self.assertEqual(response.code, 404)
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@override_config(
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{
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# Disable downloads from a domain we won't be requesting downloads from.
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# This proves we haven't broken anything.
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"prevent_media_downloads_from": ["not-listed.com"]
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}
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)
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def test_remote_media_normally_unblocked(self) -> None:
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"""
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Tests to ensure that remote media is normally able to be downloaded
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when no domain block is in place.
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"""
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response = self.make_request(
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"GET",
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f"/_matrix/media/v3/download/evil.com/{self.remote_media_id}",
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shorthand=False,
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)
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self.assertEqual(response.code, 200)
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@override_config(
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{
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# Disable downloads from the domain we'll be trying to download from.
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# Should result in a 404.
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"prevent_media_downloads_from": ["evil.com"],
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"dynamic_thumbnails": True,
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}
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)
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def test_cannot_download_blocked_media_thumbnail(self) -> None:
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"""
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Same test as test_cannot_download_blocked_media but for thumbnails.
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"""
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response = self.make_request(
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"GET",
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f"/_matrix/media/v3/thumbnail/evil.com/{self.remote_media_id}?width=100&height=100",
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shorthand=False,
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content={"width": 100, "height": 100},
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)
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self.assertEqual(response.code, 404)
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@override_config(
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{
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# Disable downloads from a domain we won't be requesting downloads from.
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# This proves we haven't broken anything.
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"prevent_media_downloads_from": ["not-listed.com"],
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"dynamic_thumbnails": True,
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}
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)
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def test_remote_media_thumbnail_normally_unblocked(self) -> None:
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"""
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Same test as test_remote_media_normally_unblocked but for thumbnails.
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"""
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response = self.make_request(
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"GET",
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f"/_matrix/media/v3/thumbnail/evil.com/{self.remote_media_id}?width=100&height=100",
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shorthand=False,
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)
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self.assertEqual(response.code, 200)
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