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synapse/tests/rest/client/test_sendtodevice.py
Eric Eastwood c97251d5ba
Add Sliding Sync /sync/e2ee endpoint for To-Device messages (#17167)
This is being introduced as part of Sliding Sync but doesn't have any sliding window component. It's just a way to get E2EE events without having to sit through a big initial sync  (`/sync` v2). And we can avoid encryption events being backed up by the main sync response or vice-versa.

Part of some Sliding Sync simplification/experimentation. See [this discussion](https://github.com/element-hq/synapse/pull/17167#discussion_r1610495866) for why it may not be as useful as we thought.

Based on:

 - https://github.com/matrix-org/matrix-spec-proposals/pull/3575
 - https://github.com/matrix-org/matrix-spec-proposals/pull/3885
 - https://github.com/matrix-org/matrix-spec-proposals/pull/3884
2024-05-23 12:06:16 -05:00

293 lines
10 KiB
Python

#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright 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 parameterized import parameterized_class
from synapse.api.constants import EduTypes
from synapse.rest import admin
from synapse.rest.client import login, sendtodevice, sync
from synapse.types import JsonDict
from tests.unittest import HomeserverTestCase, override_config
@parameterized_class(
("sync_endpoint", "experimental_features"),
[
("/sync", {}),
(
"/_matrix/client/unstable/org.matrix.msc3575/sync/e2ee",
# Enable sliding sync
{"msc3575_enabled": True},
),
],
)
class SendToDeviceTestCase(HomeserverTestCase):
"""
Test `/sendToDevice` will deliver messages across to people receiving them over `/sync`.
Attributes:
sync_endpoint: The endpoint under test to use for syncing.
experimental_features: The experimental features homeserver config to use.
"""
sync_endpoint: str
experimental_features: JsonDict
servlets = [
admin.register_servlets,
login.register_servlets,
sendtodevice.register_servlets,
sync.register_servlets,
]
def default_config(self) -> JsonDict:
config = super().default_config()
config["experimental_features"] = self.experimental_features
return config
def test_user_to_user(self) -> None:
"""A to-device message from one user to another should get delivered"""
user1 = self.register_user("u1", "pass")
user1_tok = self.login("u1", "pass", "d1")
user2 = self.register_user("u2", "pass")
user2_tok = self.login("u2", "pass", "d2")
# send the message
test_msg = {"foo": "bar"}
chan = self.make_request(
"PUT",
"/_matrix/client/r0/sendToDevice/m.test/1234",
content={"messages": {user2: {"d2": test_msg}}},
access_token=user1_tok,
)
self.assertEqual(chan.code, 200, chan.result)
# check it appears
channel = self.make_request("GET", self.sync_endpoint, access_token=user2_tok)
self.assertEqual(channel.code, 200, channel.result)
expected_result = {
"events": [
{
"sender": user1,
"type": "m.test",
"content": test_msg,
}
]
}
self.assertEqual(channel.json_body["to_device"], expected_result)
# it should re-appear if we do another sync because the to-device message is not
# deleted until we acknowledge it by sending a `?since=...` parameter in the
# next sync request corresponding to the `next_batch` value from the response.
channel = self.make_request("GET", self.sync_endpoint, access_token=user2_tok)
self.assertEqual(channel.code, 200, channel.result)
self.assertEqual(channel.json_body["to_device"], expected_result)
# it should *not* appear if we do an incremental sync
sync_token = channel.json_body["next_batch"]
channel = self.make_request(
"GET",
f"{self.sync_endpoint}?since={sync_token}",
access_token=user2_tok,
)
self.assertEqual(channel.code, 200, channel.result)
self.assertEqual(channel.json_body.get("to_device", {}).get("events", []), [])
@override_config({"rc_key_requests": {"per_second": 10, "burst_count": 2}})
def test_local_room_key_request(self) -> None:
"""m.room_key_request has special-casing; test from local user"""
user1 = self.register_user("u1", "pass")
user1_tok = self.login("u1", "pass", "d1")
user2 = self.register_user("u2", "pass")
user2_tok = self.login("u2", "pass", "d2")
# send three messages
for i in range(3):
chan = self.make_request(
"PUT",
f"/_matrix/client/r0/sendToDevice/m.room_key_request/{i}",
content={"messages": {user2: {"d2": {"idx": i}}}},
access_token=user1_tok,
)
self.assertEqual(chan.code, 200, chan.result)
# now sync: we should get two of the three (because burst_count=2)
channel = self.make_request("GET", self.sync_endpoint, access_token=user2_tok)
self.assertEqual(channel.code, 200, channel.result)
msgs = channel.json_body["to_device"]["events"]
self.assertEqual(len(msgs), 2)
for i in range(2):
self.assertEqual(
msgs[i],
{
"sender": user1,
"type": "m.room_key_request",
"content": {"idx": i},
},
)
sync_token = channel.json_body["next_batch"]
# ... time passes
self.reactor.advance(1)
# and we can send more messages
chan = self.make_request(
"PUT",
"/_matrix/client/r0/sendToDevice/m.room_key_request/3",
content={"messages": {user2: {"d2": {"idx": 3}}}},
access_token=user1_tok,
)
self.assertEqual(chan.code, 200, chan.result)
# ... which should arrive
channel = self.make_request(
"GET",
f"{self.sync_endpoint}?since={sync_token}",
access_token=user2_tok,
)
self.assertEqual(channel.code, 200, channel.result)
msgs = channel.json_body["to_device"]["events"]
self.assertEqual(len(msgs), 1)
self.assertEqual(
msgs[0],
{"sender": user1, "type": "m.room_key_request", "content": {"idx": 3}},
)
@override_config({"rc_key_requests": {"per_second": 10, "burst_count": 2}})
def test_remote_room_key_request(self) -> None:
"""m.room_key_request has special-casing; test from remote user"""
user2 = self.register_user("u2", "pass")
user2_tok = self.login("u2", "pass", "d2")
federation_registry = self.hs.get_federation_registry()
# send three messages
for i in range(3):
self.get_success(
federation_registry.on_edu(
EduTypes.DIRECT_TO_DEVICE,
"remote_server",
{
"sender": "@user:remote_server",
"type": "m.room_key_request",
"messages": {user2: {"d2": {"idx": i}}},
"message_id": f"{i}",
},
)
)
# now sync: we should get two of the three
channel = self.make_request("GET", self.sync_endpoint, access_token=user2_tok)
self.assertEqual(channel.code, 200, channel.result)
msgs = channel.json_body["to_device"]["events"]
self.assertEqual(len(msgs), 2)
for i in range(2):
self.assertEqual(
msgs[i],
{
"sender": "@user:remote_server",
"type": "m.room_key_request",
"content": {"idx": i},
},
)
sync_token = channel.json_body["next_batch"]
# ... time passes
self.reactor.advance(1)
# and we can send more messages
self.get_success(
federation_registry.on_edu(
EduTypes.DIRECT_TO_DEVICE,
"remote_server",
{
"sender": "@user:remote_server",
"type": "m.room_key_request",
"messages": {user2: {"d2": {"idx": 3}}},
"message_id": "3",
},
)
)
# ... which should arrive
channel = self.make_request(
"GET",
f"{self.sync_endpoint}?since={sync_token}",
access_token=user2_tok,
)
self.assertEqual(channel.code, 200, channel.result)
msgs = channel.json_body["to_device"]["events"]
self.assertEqual(len(msgs), 1)
self.assertEqual(
msgs[0],
{
"sender": "@user:remote_server",
"type": "m.room_key_request",
"content": {"idx": 3},
},
)
def test_limited_sync(self) -> None:
"""If a limited sync for to-devices happens the next /sync should respond immediately."""
self.register_user("u1", "pass")
user1_tok = self.login("u1", "pass", "d1")
user2 = self.register_user("u2", "pass")
user2_tok = self.login("u2", "pass", "d2")
# Do an initial sync
channel = self.make_request("GET", self.sync_endpoint, access_token=user2_tok)
self.assertEqual(channel.code, 200, channel.result)
sync_token = channel.json_body["next_batch"]
# Send 150 to-device messages. We limit to 100 in `/sync`
for i in range(150):
test_msg = {"foo": "bar"}
chan = self.make_request(
"PUT",
f"/_matrix/client/r0/sendToDevice/m.test/1234-{i}",
content={"messages": {user2: {"d2": test_msg}}},
access_token=user1_tok,
)
self.assertEqual(chan.code, 200, chan.result)
channel = self.make_request(
"GET",
f"{self.sync_endpoint}?since={sync_token}&timeout=300000",
access_token=user2_tok,
)
self.assertEqual(channel.code, 200, channel.result)
messages = channel.json_body.get("to_device", {}).get("events", [])
self.assertEqual(len(messages), 100)
sync_token = channel.json_body["next_batch"]
channel = self.make_request(
"GET",
f"{self.sync_endpoint}?since={sync_token}&timeout=300000",
access_token=user2_tok,
)
self.assertEqual(channel.code, 200, channel.result)
messages = channel.json_body.get("to_device", {}).get("events", [])
self.assertEqual(len(messages), 50)