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synapse/tests/storage/test_devices.py
Erik Johnston 554a92601a
Reintroduce "Reduce device lists replication traffic."" (#17361) 
Reintroduces https://github.com/element-hq/synapse/pull/17333


Turns out the reason for revert was down two master instances running
2024-06-25 10:34:34 +01:00

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#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright 2016-2021 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
from typing import Collection, List, Tuple
from twisted.test.proto_helpers import MemoryReactor
import synapse.api.errors
from synapse.api.constants import EduTypes
from synapse.server import HomeServer
from synapse.types import JsonDict
from synapse.util import Clock
from tests.unittest import HomeserverTestCase
class DeviceStoreTestCase(HomeserverTestCase):
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
self.store = hs.get_datastores().main
def default_config(self) -> JsonDict:
config = super().default_config()
# We 'enable' federation otherwise `get_device_updates_by_remote` will
# throw an exception.
config["federation_sender_instances"] = ["master"]
return config
def add_device_change(self, user_id: str, device_ids: List[str], host: str) -> None:
"""Add a device list change for the given device to
`device_lists_outbound_pokes` table.
"""
for device_id in device_ids:
self.get_success(
self.store.add_device_change_to_streams(
user_id, [device_id], ["!some:room"]
)
)
self.get_success(
self.store.add_device_list_outbound_pokes(
user_id=user_id,
device_id=device_id,
room_id="!some:room",
hosts=[host],
context={},
)
)
def test_store_new_device(self) -> None:
self.get_success(
self.store.store_device("user_id", "device_id", "display_name")
)
res = self.get_success(self.store.get_device("user_id", "device_id"))
assert res is not None
self.assertLessEqual(
{
"user_id": "user_id",
"device_id": "device_id",
"display_name": "display_name",
}.items(),
res.items(),
)
def test_get_devices_by_user(self) -> None:
self.get_success(
self.store.store_device("user_id", "device1", "display_name 1")
)
self.get_success(
self.store.store_device("user_id", "device2", "display_name 2")
)
self.get_success(
self.store.store_device("user_id2", "device3", "display_name 3")
)
res = self.get_success(self.store.get_devices_by_user("user_id"))
self.assertEqual(2, len(res.keys()))
self.assertLessEqual(
{
"user_id": "user_id",
"device_id": "device1",
"display_name": "display_name 1",
}.items(),
res["device1"].items(),
)
self.assertLessEqual(
{
"user_id": "user_id",
"device_id": "device2",
"display_name": "display_name 2",
}.items(),
res["device2"].items(),
)
def test_count_devices_by_users(self) -> None:
self.get_success(
self.store.store_device("user_id", "device1", "display_name 1")
)
self.get_success(
self.store.store_device("user_id", "device2", "display_name 2")
)
self.get_success(
self.store.store_device("user_id2", "device3", "display_name 3")
)
res = self.get_success(self.store.count_devices_by_users())
self.assertEqual(0, res)
res = self.get_success(self.store.count_devices_by_users(["unknown"]))
self.assertEqual(0, res)
res = self.get_success(self.store.count_devices_by_users(["user_id"]))
self.assertEqual(2, res)
res = self.get_success(
self.store.count_devices_by_users(["user_id", "user_id2"])
)
self.assertEqual(3, res)
def test_get_device_updates_by_remote(self) -> None:
device_ids = ["device_id1", "device_id2"]
# Add two device updates with sequential `stream_id`s
self.add_device_change("@user_id:test", device_ids, "somehost")
# Get all device updates ever meant for this remote
now_stream_id, device_updates = self.get_success(
self.store.get_device_updates_by_remote("somehost", -1, limit=100)
)
# Check original device_ids are contained within these updates
self._check_devices_in_updates(device_ids, device_updates)
def test_get_device_updates_by_remote_can_limit_properly(self) -> None:
"""
Tests that `get_device_updates_by_remote` returns an appropriate
stream_id to resume fetching from (without skipping any results).
"""
# Add some device updates with sequential `stream_id`s
device_ids = [
"device_id1",
"device_id2",
"device_id3",
"device_id4",
"device_id5",
]
self.add_device_change("@user_id:test", device_ids, "somehost")
# Get device updates meant for this remote
next_stream_id, device_updates = self.get_success(
self.store.get_device_updates_by_remote("somehost", -1, limit=3)
)
# Check the first three original device_ids are contained within these updates
self._check_devices_in_updates(device_ids[:3], device_updates)
# Get the next batch of device updates
next_stream_id, device_updates = self.get_success(
self.store.get_device_updates_by_remote("somehost", next_stream_id, limit=3)
)
# Check the last two original device_ids are contained within these updates
self._check_devices_in_updates(device_ids[3:], device_updates)
# Add some more device updates to ensure it still resumes properly
device_ids = ["device_id6", "device_id7"]
self.add_device_change("@user_id:test", device_ids, "somehost")
# Get the next batch of device updates
next_stream_id, device_updates = self.get_success(
self.store.get_device_updates_by_remote("somehost", next_stream_id, limit=3)
)
# Check the newly-added device_ids are contained within these updates
self._check_devices_in_updates(device_ids, device_updates)
# Check there are no more device updates left.
_, device_updates = self.get_success(
self.store.get_device_updates_by_remote("somehost", next_stream_id, limit=3)
)
self.assertEqual(device_updates, [])
def test_get_device_updates_by_remote_cross_signing_key_updates(
self,
) -> None:
"""
Tests that `get_device_updates_by_remote` limits the length of the return value
properly when cross-signing key updates are present.
Current behaviour is that the cross-signing key updates will always come in pairs,
even if that means leaving an earlier batch one EDU short of the limit.
"""
assert self.hs.is_mine_id(
"@user_id:test"
), "Test not valid: this MXID should be considered local"
self.get_success(
self.store.set_e2e_cross_signing_key(
"@user_id:test",
"master",
{
"keys": {
"ed25519:fakeMaster": "aaafakefakefake1AAAAAAAAAAAAAAAAAAAAAAAAAAA="
},
"signatures": {
"@user_id:test": {
"ed25519:fake2": "aaafakefakefake2AAAAAAAAAAAAAAAAAAAAAAAAAAA="
}
},
},
)
)
self.get_success(
self.store.set_e2e_cross_signing_key(
"@user_id:test",
"self_signing",
{
"keys": {
"ed25519:fakeSelfSigning": "aaafakefakefake3AAAAAAAAAAAAAAAAAAAAAAAAAAA="
},
"signatures": {
"@user_id:test": {
"ed25519:fake4": "aaafakefakefake4AAAAAAAAAAAAAAAAAAAAAAAAAAA="
}
},
},
)
)
# Add some device updates with sequential `stream_id`s
# Note that the public cross-signing keys occupy the same space as device IDs,
# so also notify that those have updated.
device_ids = [
"device_id1",
"device_id2",
"fakeMaster",
"fakeSelfSigning",
]
self.add_device_change("@user_id:test", device_ids, "somehost")
# Get device updates meant for this remote
next_stream_id, device_updates = self.get_success(
self.store.get_device_updates_by_remote("somehost", -1, limit=3)
)
# Here we expect the device updates for `device_id1` and `device_id2`.
# That means we only receive 2 updates this time around.
# If we had a higher limit, we would expect to see the pair of
# (unstable-prefixed & unprefixed) signing key updates for the device
# represented by `fakeMaster` and `fakeSelfSigning`.
# Our implementation only sends these two variants together, so we get
# a short batch.
self.assertEqual(len(device_updates), 2, device_updates)
# Check the first two devices (device_id1, device_id2) came out.
self._check_devices_in_updates(device_ids[:2], device_updates)
# Get more device updates meant for this remote
next_stream_id, device_updates = self.get_success(
self.store.get_device_updates_by_remote("somehost", next_stream_id, limit=3)
)
# The next 2 updates should be a cross-signing key update
# (the master key update and the self-signing key update are combined into
# one 'signing key update', but the cross-signing key update is emitted
# twice, once with an unprefixed type and once again with an unstable-prefixed type)
# (This is a temporary arrangement for backwards compatibility!)
self.assertEqual(len(device_updates), 2, device_updates)
self.assertEqual(
device_updates[0][0], EduTypes.SIGNING_KEY_UPDATE, device_updates[0]
)
self.assertEqual(
device_updates[1][0],
EduTypes.UNSTABLE_SIGNING_KEY_UPDATE,
device_updates[1],
)
# Check there are no more device updates left.
_, device_updates = self.get_success(
self.store.get_device_updates_by_remote("somehost", next_stream_id, limit=3)
)
self.assertEqual(device_updates, [])
def _check_devices_in_updates(
self,
expected_device_ids: Collection[str],
device_updates: List[Tuple[str, JsonDict]],
) -> None:
"""Check that an specific device ids exist in a list of device update EDUs"""
self.assertEqual(len(device_updates), len(expected_device_ids))
received_device_ids = {
update["device_id"] for edu_type, update in device_updates
}
self.assertEqual(received_device_ids, set(expected_device_ids))
def test_update_device(self) -> None:
self.get_success(
self.store.store_device("user_id", "device_id", "display_name 1")
)
res = self.get_success(self.store.get_device("user_id", "device_id"))
assert res is not None
self.assertEqual("display_name 1", res["display_name"])
# do a no-op first
self.get_success(self.store.update_device("user_id", "device_id"))
res = self.get_success(self.store.get_device("user_id", "device_id"))
assert res is not None
self.assertEqual("display_name 1", res["display_name"])
# do the update
self.get_success(
self.store.update_device(
"user_id", "device_id", new_display_name="display_name 2"
)
)
# check it worked
res = self.get_success(self.store.get_device("user_id", "device_id"))
assert res is not None
self.assertEqual("display_name 2", res["display_name"])
def test_update_unknown_device(self) -> None:
exc = self.get_failure(
self.store.update_device(
"user_id", "unknown_device_id", new_display_name="display_name 2"
),
synapse.api.errors.StoreError,
)
self.assertEqual(404, exc.value.code)
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