mirror of
https://github.com/element-hq/synapse.git
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d17295e5c3
This PR makes a few radical changes to media. This now stores the SHA256 hash of each file stored in the database (excluding thumbnails, more on that later). If a set of media is quarantined, any additional uploads of the same file contents or any other files with the same hash will be quarantined at the same time. Currently this does NOT: - De-duplicate media, although a future extension could be to do that. - Run any background jobs to identify the hashes of older files. This could also be a future extension, though the value of doing so is limited to combat the abuse of recent media. - Hash thumbnails. It's assumed that thumbnails are parented to some form of media, so you'd likely be wanting to quarantine the media and the thumbnail at the same time.
402 lines
14 KiB
Python
402 lines
14 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 2014-2016 OpenMarket Ltd
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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 Any, Awaitable, Callable, Dict
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from unittest.mock import AsyncMock, Mock
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from parameterized import parameterized
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from twisted.test.proto_helpers import MemoryReactor
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import synapse.types
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from synapse.api.errors import AuthError, SynapseError
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from synapse.rest import admin
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from synapse.server import HomeServer
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from synapse.types import JsonDict, UserID
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from synapse.util import Clock
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from tests import unittest
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class ProfileTestCase(unittest.HomeserverTestCase):
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"""Tests profile management."""
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servlets = [admin.register_servlets]
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def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
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self.mock_federation = AsyncMock()
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self.mock_registry = Mock()
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self.query_handlers: Dict[str, Callable[[dict], Awaitable[JsonDict]]] = {}
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def register_query_handler(
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query_type: str, handler: Callable[[dict], Awaitable[JsonDict]]
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) -> None:
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self.query_handlers[query_type] = handler
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self.mock_registry.register_query_handler = register_query_handler
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hs = self.setup_test_homeserver(
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federation_client=self.mock_federation,
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federation_server=Mock(),
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federation_registry=self.mock_registry,
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)
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return hs
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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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self.frank = UserID.from_string("@1234abcd:test")
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self.bob = UserID.from_string("@4567:test")
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self.alice = UserID.from_string("@alice:remote")
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self.register_user(self.frank.localpart, "frankpassword")
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self.handler = hs.get_profile_handler()
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def test_get_my_name(self) -> None:
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self.get_success(self.store.set_profile_displayname(self.frank, "Frank"))
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displayname = self.get_success(self.handler.get_displayname(self.frank))
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self.assertEqual("Frank", displayname)
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def test_set_my_name(self) -> None:
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self.get_success(
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self.handler.set_displayname(
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self.frank, synapse.types.create_requester(self.frank), "Frank Jr."
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)
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)
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self.assertEqual(
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(self.get_success(self.store.get_profile_displayname(self.frank))),
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"Frank Jr.",
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)
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# Set displayname again
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self.get_success(
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self.handler.set_displayname(
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self.frank, synapse.types.create_requester(self.frank), "Frank"
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)
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)
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self.assertEqual(
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(self.get_success(self.store.get_profile_displayname(self.frank))),
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"Frank",
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)
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# Set displayname to an empty string
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self.get_success(
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self.handler.set_displayname(
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self.frank, synapse.types.create_requester(self.frank), ""
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)
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)
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self.assertIsNone(
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self.get_success(self.store.get_profile_displayname(self.frank))
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)
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def test_set_my_name_if_disabled(self) -> None:
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self.hs.config.registration.enable_set_displayname = False
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# Setting displayname for the first time is allowed
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self.get_success(self.store.set_profile_displayname(self.frank, "Frank"))
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self.assertEqual(
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(self.get_success(self.store.get_profile_displayname(self.frank))),
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"Frank",
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)
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# Setting displayname a second time is forbidden
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self.get_failure(
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self.handler.set_displayname(
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self.frank, synapse.types.create_requester(self.frank), "Frank Jr."
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),
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SynapseError,
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)
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def test_set_my_name_noauth(self) -> None:
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self.get_failure(
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self.handler.set_displayname(
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self.frank, synapse.types.create_requester(self.bob), "Frank Jr."
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),
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AuthError,
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)
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def test_get_other_name(self) -> None:
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self.mock_federation.make_query.return_value = {"displayname": "Alice"}
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displayname = self.get_success(self.handler.get_displayname(self.alice))
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self.assertEqual(displayname, "Alice")
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self.mock_federation.make_query.assert_called_with(
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destination="remote",
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query_type="profile",
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args={"user_id": "@alice:remote", "field": "displayname"},
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ignore_backoff=True,
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)
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def test_incoming_fed_query(self) -> None:
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self.get_success(
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self.store.create_profile(UserID.from_string("@caroline:test"))
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)
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self.get_success(
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self.store.set_profile_displayname(
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UserID.from_string("@caroline:test"), "Caroline"
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)
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)
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response = self.get_success(
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self.query_handlers["profile"](
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{
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"user_id": "@caroline:test",
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"field": "displayname",
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"origin": "servername.tld",
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}
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)
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)
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self.assertEqual({"displayname": "Caroline"}, response)
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def test_get_my_avatar(self) -> None:
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self.get_success(
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self.store.set_profile_avatar_url(self.frank, "http://my.server/me.png")
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)
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avatar_url = self.get_success(self.handler.get_avatar_url(self.frank))
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self.assertEqual("http://my.server/me.png", avatar_url)
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def test_get_profile_empty_displayname(self) -> None:
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self.get_success(self.store.set_profile_displayname(self.frank, None))
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self.get_success(
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self.store.set_profile_avatar_url(self.frank, "http://my.server/me.png")
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)
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profile = self.get_success(self.handler.get_profile(self.frank.to_string()))
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self.assertEqual("http://my.server/me.png", profile["avatar_url"])
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def test_set_my_avatar(self) -> None:
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self.get_success(
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self.handler.set_avatar_url(
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self.frank,
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synapse.types.create_requester(self.frank),
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"http://my.server/pic.gif",
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)
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)
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self.assertEqual(
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(self.get_success(self.store.get_profile_avatar_url(self.frank))),
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"http://my.server/pic.gif",
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)
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# Set avatar again
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self.get_success(
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self.handler.set_avatar_url(
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self.frank,
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synapse.types.create_requester(self.frank),
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"http://my.server/me.png",
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)
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)
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self.assertEqual(
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(self.get_success(self.store.get_profile_avatar_url(self.frank))),
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"http://my.server/me.png",
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)
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# Set avatar to an empty string
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self.get_success(
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self.handler.set_avatar_url(
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self.frank,
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synapse.types.create_requester(self.frank),
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"",
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)
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)
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self.assertIsNone(
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(self.get_success(self.store.get_profile_avatar_url(self.frank))),
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)
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def test_set_my_avatar_if_disabled(self) -> None:
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self.hs.config.registration.enable_set_avatar_url = False
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# Setting displayname for the first time is allowed
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self.get_success(
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self.store.set_profile_avatar_url(self.frank, "http://my.server/me.png")
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)
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self.assertEqual(
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(self.get_success(self.store.get_profile_avatar_url(self.frank))),
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"http://my.server/me.png",
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)
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# Set avatar a second time is forbidden
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self.get_failure(
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self.handler.set_avatar_url(
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self.frank,
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synapse.types.create_requester(self.frank),
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"http://my.server/pic.gif",
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),
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SynapseError,
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)
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def test_avatar_constraints_no_config(self) -> None:
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"""Tests that the method to check an avatar against configured constraints skips
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all of its check if no constraint is configured.
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"""
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# The first check that's done by this method is whether the file exists; if we
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# don't get an error on a non-existing file then it means all of the checks were
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# successfully skipped.
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res = self.get_success(
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self.handler.check_avatar_size_and_mime_type("mxc://test/unknown_file")
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)
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self.assertTrue(res)
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@unittest.override_config({"max_avatar_size": 50})
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def test_avatar_constraints_allow_empty_avatar_url(self) -> None:
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"""An empty avatar is always permitted."""
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res = self.get_success(self.handler.check_avatar_size_and_mime_type(""))
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self.assertTrue(res)
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@unittest.override_config({"max_avatar_size": 50})
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def test_avatar_constraints_missing(self) -> None:
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"""Tests that an avatar isn't allowed if the file at the given MXC URI couldn't
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be found.
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"""
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res = self.get_success(
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self.handler.check_avatar_size_and_mime_type("mxc://test/unknown_file")
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)
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self.assertFalse(res)
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@unittest.override_config({"max_avatar_size": 50})
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def test_avatar_constraints_file_size(self) -> None:
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"""Tests that a file that's above the allowed file size is forbidden but one
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that's below it is allowed.
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"""
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self._setup_local_files(
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{
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"small": {"size": 40},
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"big": {"size": 60},
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}
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)
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res = self.get_success(
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self.handler.check_avatar_size_and_mime_type("mxc://test/small")
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)
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self.assertTrue(res)
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res = self.get_success(
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self.handler.check_avatar_size_and_mime_type("mxc://test/big")
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)
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self.assertFalse(res)
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@unittest.override_config({"allowed_avatar_mimetypes": ["image/png"]})
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def test_avatar_constraint_mime_type(self) -> None:
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"""Tests that a file with an unauthorised MIME type is forbidden but one with
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an authorised content type is allowed.
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"""
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self._setup_local_files(
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{
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"good": {"mimetype": "image/png"},
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"bad": {"mimetype": "application/octet-stream"},
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}
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)
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res = self.get_success(
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self.handler.check_avatar_size_and_mime_type("mxc://test/good")
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)
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self.assertTrue(res)
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res = self.get_success(
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self.handler.check_avatar_size_and_mime_type("mxc://test/bad")
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)
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self.assertFalse(res)
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@unittest.override_config(
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{"server_name": "test:8888", "allowed_avatar_mimetypes": ["image/png"]}
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)
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def test_avatar_constraint_on_local_server_with_port(self) -> None:
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"""Test that avatar metadata is correctly fetched when the media is on a local
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server and the server has an explicit port.
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(This was previously a bug)
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"""
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local_server_name = self.hs.config.server.server_name
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media_id = "local"
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local_mxc = f"mxc://{local_server_name}/{media_id}"
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# mock up the existence of the avatar file
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self._setup_local_files({media_id: {"mimetype": "image/png"}})
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# and now check that check_avatar_size_and_mime_type is happy
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self.assertTrue(
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self.get_success(self.handler.check_avatar_size_and_mime_type(local_mxc))
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)
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@parameterized.expand([("remote",), ("remote:1234",)])
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@unittest.override_config({"allowed_avatar_mimetypes": ["image/png"]})
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def test_check_avatar_on_remote_server(self, remote_server_name: str) -> None:
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"""Test that avatar metadata is correctly fetched from a remote server"""
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media_id = "remote"
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remote_mxc = f"mxc://{remote_server_name}/{media_id}"
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# if the media is remote, check_avatar_size_and_mime_type just checks the
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# media cache, so we don't need to instantiate a real remote server. It is
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# sufficient to poke an entry into the db.
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self.get_success(
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self.hs.get_datastores().main.store_cached_remote_media(
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media_id=media_id,
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media_type="image/png",
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media_length=50,
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origin=remote_server_name,
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time_now_ms=self.clock.time_msec(),
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upload_name=None,
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filesystem_id="xyz",
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sha256="abcdefg12345",
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)
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)
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self.assertTrue(
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self.get_success(self.handler.check_avatar_size_and_mime_type(remote_mxc))
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)
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def _setup_local_files(self, names_and_props: Dict[str, Dict[str, Any]]) -> None:
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"""Stores metadata about files in the database.
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Args:
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names_and_props: A dictionary with one entry per file, with the key being the
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file's name, and the value being a dictionary of properties. Supported
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properties are "mimetype" (for the file's type) and "size" (for the
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file's size).
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"""
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store = self.hs.get_datastores().main
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for name, props in names_and_props.items():
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self.get_success(
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store.store_local_media(
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media_id=name,
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media_type=props.get("mimetype", "image/png"),
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time_now_ms=self.clock.time_msec(),
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upload_name=None,
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media_length=props.get("size", 50),
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user_id=UserID.from_string("@rin:test"),
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)
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)
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