MatrixSynapse/tests/handlers/test_appservice.py

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# Copyright 2015-2021 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import Dict, Iterable, List, Optional
from unittest.mock import AsyncMock, Mock
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from parameterized import parameterized
from twisted.internet import defer
from twisted.test.proto_helpers import MemoryReactor
import synapse.rest.admin
import synapse.storage
from synapse.api.constants import EduTypes, EventTypes
from synapse.appservice import (
ApplicationService,
TransactionOneTimeKeysCount,
TransactionUnusedFallbackKeys,
)
from synapse.handlers.appservice import ApplicationServicesHandler
from synapse.rest.client import login, receipts, register, room, sendtodevice
from synapse.server import HomeServer
from synapse.types import JsonDict, RoomStreamToken, StreamKeyType
from synapse.util import Clock
from synapse.util.stringutils import random_string
from tests import unittest
from tests.test_utils import event_injection
from tests.unittest import override_config
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from tests.utils import MockClock
class AppServiceHandlerTestCase(unittest.TestCase):
"""Tests the ApplicationServicesHandler."""
def setUp(self) -> None:
self.mock_store = Mock()
self.mock_as_api = AsyncMock()
self.mock_scheduler = Mock()
hs = Mock()
hs.get_datastores.return_value = Mock(main=self.mock_store)
self.mock_store.get_appservice_last_pos = AsyncMock(return_value=None)
self.mock_store.set_appservice_last_pos = AsyncMock(return_value=None)
self.mock_store.set_appservice_stream_type_pos = AsyncMock(return_value=None)
hs.get_application_service_api.return_value = self.mock_as_api
hs.get_application_service_scheduler.return_value = self.mock_scheduler
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hs.get_clock.return_value = MockClock()
self.handler = ApplicationServicesHandler(hs)
self.event_source = hs.get_event_sources()
def test_notify_interested_services(self) -> None:
interested_service = self._mkservice(is_interested_in_event=True)
services = [
self._mkservice(is_interested_in_event=False),
interested_service,
self._mkservice(is_interested_in_event=False),
]
self.mock_as_api.query_user.return_value = True
self.mock_store.get_app_services.return_value = services
self.mock_store.get_user_by_id = AsyncMock(return_value=[])
event = Mock(
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sender="@someone:anywhere", type="m.room.message", room_id="!foo:bar"
)
self.mock_store.get_all_new_event_ids_stream = AsyncMock(
side_effect=[
(0, {}),
(1, {event.event_id: 0}),
]
)
self.mock_store.get_events_as_list = AsyncMock(
side_effect=[
[],
[event],
]
)
self.handler.notify_interested_services(RoomStreamToken(stream=1))
self.mock_scheduler.enqueue_for_appservice.assert_called_once_with(
interested_service, events=[event]
)
def test_query_user_exists_unknown_user(self) -> None:
user_id = "@someone:anywhere"
services = [self._mkservice(is_interested_in_event=True)]
services[0].is_interested_in_user.return_value = True
self.mock_store.get_app_services.return_value = services
self.mock_store.get_user_by_id = AsyncMock(return_value=None)
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event = Mock(sender=user_id, type="m.room.message", room_id="!foo:bar")
self.mock_as_api.query_user.return_value = True
self.mock_store.get_all_new_event_ids_stream = AsyncMock(
side_effect=[
(0, {event.event_id: 0}),
]
)
self.mock_store.get_events_as_list = AsyncMock(side_effect=[[event]])
self.handler.notify_interested_services(RoomStreamToken(stream=0))
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self.mock_as_api.query_user.assert_called_once_with(services[0], user_id)
def test_query_user_exists_known_user(self) -> None:
user_id = "@someone:anywhere"
services = [self._mkservice(is_interested_in_event=True)]
services[0].is_interested_in_user.return_value = True
self.mock_store.get_app_services.return_value = services
self.mock_store.get_user_by_id = AsyncMock(return_value={"name": user_id})
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event = Mock(sender=user_id, type="m.room.message", room_id="!foo:bar")
self.mock_as_api.query_user.return_value = True
self.mock_store.get_all_new_event_ids_stream = AsyncMock(
side_effect=[
(0, [event], {event.event_id: 0}),
]
)
self.handler.notify_interested_services(RoomStreamToken(stream=0))
self.assertFalse(
self.mock_as_api.query_user.called,
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"query_user called when it shouldn't have been.",
)
def test_query_room_alias_exists(self) -> None:
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room_alias_str = "#foo:bar"
room_alias = Mock()
room_alias.to_string.return_value = room_alias_str
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room_id = "!alpha:bet"
servers = ["aperture"]
interested_service = self._mkservice_alias(is_room_alias_in_namespace=True)
services = [
self._mkservice_alias(is_room_alias_in_namespace=False),
interested_service,
self._mkservice_alias(is_room_alias_in_namespace=False),
]
self.mock_as_api.query_alias = AsyncMock(return_value=True)
self.mock_store.get_app_services.return_value = services
self.mock_store.get_association_from_room_alias = AsyncMock(
return_value=Mock(room_id=room_id, servers=servers)
)
result = self.successResultOf(
defer.ensureDeferred(self.handler.query_room_alias_exists(room_alias))
)
self.mock_as_api.query_alias.assert_called_once_with(
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interested_service, room_alias_str
)
self.assertEqual(result.room_id, room_id)
self.assertEqual(result.servers, servers)
def test_get_3pe_protocols_no_appservices(self) -> None:
self.mock_store.get_app_services.return_value = []
response = self.successResultOf(
defer.ensureDeferred(self.handler.get_3pe_protocols("my-protocol"))
)
self.mock_as_api.get_3pe_protocol.assert_not_called()
self.assertEqual(response, {})
def test_get_3pe_protocols_no_protocols(self) -> None:
service = self._mkservice(False, [])
self.mock_store.get_app_services.return_value = [service]
response = self.successResultOf(
defer.ensureDeferred(self.handler.get_3pe_protocols())
)
self.mock_as_api.get_3pe_protocol.assert_not_called()
self.assertEqual(response, {})
def test_get_3pe_protocols_protocol_no_response(self) -> None:
service = self._mkservice(False, ["my-protocol"])
self.mock_store.get_app_services.return_value = [service]
self.mock_as_api.get_3pe_protocol.return_value = None
response = self.successResultOf(
defer.ensureDeferred(self.handler.get_3pe_protocols())
)
self.mock_as_api.get_3pe_protocol.assert_called_once_with(
service, "my-protocol"
)
self.assertEqual(response, {})
def test_get_3pe_protocols_select_one_protocol(self) -> None:
service = self._mkservice(False, ["my-protocol"])
self.mock_store.get_app_services.return_value = [service]
self.mock_as_api.get_3pe_protocol.return_value = {
"x-protocol-data": 42,
"instances": [],
}
response = self.successResultOf(
defer.ensureDeferred(self.handler.get_3pe_protocols("my-protocol"))
)
self.mock_as_api.get_3pe_protocol.assert_called_once_with(
service, "my-protocol"
)
self.assertEqual(
response, {"my-protocol": {"x-protocol-data": 42, "instances": []}}
)
def test_get_3pe_protocols_one_protocol(self) -> None:
service = self._mkservice(False, ["my-protocol"])
self.mock_store.get_app_services.return_value = [service]
self.mock_as_api.get_3pe_protocol.return_value = {
"x-protocol-data": 42,
"instances": [],
}
response = self.successResultOf(
defer.ensureDeferred(self.handler.get_3pe_protocols())
)
self.mock_as_api.get_3pe_protocol.assert_called_once_with(
service, "my-protocol"
)
self.assertEqual(
response, {"my-protocol": {"x-protocol-data": 42, "instances": []}}
)
def test_get_3pe_protocols_multiple_protocol(self) -> None:
service_one = self._mkservice(False, ["my-protocol"])
service_two = self._mkservice(False, ["other-protocol"])
self.mock_store.get_app_services.return_value = [service_one, service_two]
self.mock_as_api.get_3pe_protocol.return_value = {
"x-protocol-data": 42,
"instances": [],
}
response = self.successResultOf(
defer.ensureDeferred(self.handler.get_3pe_protocols())
)
self.mock_as_api.get_3pe_protocol.assert_called()
self.assertEqual(
response,
{
"my-protocol": {"x-protocol-data": 42, "instances": []},
"other-protocol": {"x-protocol-data": 42, "instances": []},
},
)
def test_get_3pe_protocols_multiple_info(self) -> None:
service_one = self._mkservice(False, ["my-protocol"])
service_two = self._mkservice(False, ["my-protocol"])
async def get_3pe_protocol(
service: ApplicationService, protocol: str
) -> Optional[JsonDict]:
if service == service_one:
return {
"x-protocol-data": 42,
"instances": [{"desc": "Alice's service"}],
}
if service == service_two:
return {
"x-protocol-data": 36,
"x-not-used": 45,
"instances": [{"desc": "Bob's service"}],
}
raise Exception("Unexpected service")
self.mock_store.get_app_services.return_value = [service_one, service_two]
self.mock_as_api.get_3pe_protocol = get_3pe_protocol
response = self.successResultOf(
defer.ensureDeferred(self.handler.get_3pe_protocols())
)
# It's expected that the second service's data doesn't appear in the response
self.assertEqual(
response,
{
"my-protocol": {
"x-protocol-data": 42,
"instances": [
{
"desc": "Alice's service",
},
{"desc": "Bob's service"},
],
},
},
)
def test_notify_interested_services_ephemeral(self) -> None:
"""
Test sending ephemeral events to the appservice handler are scheduled
to be pushed out to interested appservices, and that the stream ID is
updated accordingly.
"""
interested_service = self._mkservice(is_interested_in_event=True)
services = [interested_service]
self.mock_store.get_app_services.return_value = services
self.mock_store.get_type_stream_id_for_appservice = AsyncMock(return_value=579)
event = Mock(event_id="event_1")
self.event_source.sources.receipt.get_new_events_as = AsyncMock(
return_value=([event], None)
)
self.handler.notify_interested_services_ephemeral(
StreamKeyType.RECEIPT, 580, ["@fakerecipient:example.com"]
)
self.mock_scheduler.enqueue_for_appservice.assert_called_once_with(
interested_service, ephemeral=[event]
)
self.mock_store.set_appservice_stream_type_pos.assert_called_once_with(
interested_service,
"read_receipt",
580,
)
def test_notify_interested_services_ephemeral_out_of_order(self) -> None:
"""
Test sending out of order ephemeral events to the appservice handler
are ignored.
"""
interested_service = self._mkservice(is_interested_in_event=True)
services = [interested_service]
self.mock_store.get_app_services.return_value = services
self.mock_store.get_type_stream_id_for_appservice = AsyncMock(return_value=580)
event = Mock(event_id="event_1")
self.event_source.sources.receipt.get_new_events_as = AsyncMock(
return_value=([event], None)
)
self.handler.notify_interested_services_ephemeral(
StreamKeyType.RECEIPT, 580, ["@fakerecipient:example.com"]
)
# This method will be called, but with an empty list of events
self.mock_scheduler.enqueue_for_appservice.assert_called_once_with(
interested_service, ephemeral=[]
)
def _mkservice(
self, is_interested_in_event: bool, protocols: Optional[Iterable] = None
) -> Mock:
"""
Create a new mock representing an ApplicationService.
Args:
is_interested_in_event: Whether this application service will be considered
interested in all events.
protocols: The third-party protocols that this application service claims to
support.
Returns:
A mock representing the ApplicationService.
"""
service = Mock()
service.is_interested_in_event = AsyncMock(return_value=is_interested_in_event)
service.token = "mock_service_token"
service.url = "mock_service_url"
service.protocols = protocols
return service
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def _mkservice_alias(self, is_room_alias_in_namespace: bool) -> Mock:
"""
Create a new mock representing an ApplicationService that is or is not interested
any given room aliase.
Args:
is_room_alias_in_namespace: If true, the application service will be interested
in all room aliases that are queried against it. If false, the application
service will not be interested in any room aliases.
Returns:
A mock representing the ApplicationService.
"""
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service = Mock()
service.is_room_alias_in_namespace.return_value = is_room_alias_in_namespace
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service.token = "mock_service_token"
service.url = "mock_service_url"
return service
class ApplicationServicesHandlerSendEventsTestCase(unittest.HomeserverTestCase):
"""
Tests that the ApplicationServicesHandler sends events to application
services correctly.
"""
servlets = [
synapse.rest.admin.register_servlets_for_client_rest_resource,
login.register_servlets,
room.register_servlets,
sendtodevice.register_servlets,
receipts.register_servlets,
]
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
self.hs = hs
# Mock the ApplicationServiceScheduler's _TransactionController's send method so that
# we can track any outgoing ephemeral events
self.send_mock = AsyncMock()
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hs.get_application_service_handler().scheduler.txn_ctrl.send = self.send_mock # type: ignore[method-assign]
# Mock out application services, and allow defining our own in tests
self._services: List[ApplicationService] = []
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self.hs.get_datastores().main.get_app_services = Mock( # type: ignore[method-assign]
return_value=self._services
)
# A user on the homeserver.
self.local_user_device_id = "local_device"
self.local_user = self.register_user("local_user", "password")
self.local_user_token = self.login(
"local_user", "password", self.local_user_device_id
)
# A user on the homeserver which lies within an appservice's exclusive user namespace.
self.exclusive_as_user_device_id = "exclusive_as_device"
self.exclusive_as_user = self.register_user("exclusive_as_user", "password")
self.exclusive_as_user_token = self.login(
"exclusive_as_user", "password", self.exclusive_as_user_device_id
)
self.exclusive_as_user_2_device_id = "exclusive_as_device_2"
self.exclusive_as_user_2 = self.register_user("exclusive_as_user_2", "password")
self.exclusive_as_user_2_token = self.login(
"exclusive_as_user_2", "password", self.exclusive_as_user_2_device_id
)
self.exclusive_as_user_3_device_id = "exclusive_as_device_3"
self.exclusive_as_user_3 = self.register_user("exclusive_as_user_3", "password")
self.exclusive_as_user_3_token = self.login(
"exclusive_as_user_3", "password", self.exclusive_as_user_3_device_id
)
def _notify_interested_services(self) -> None:
# This is normally set in `notify_interested_services` but we need to call the
# internal async version so the reactor gets pushed to completion.
self.hs.get_application_service_handler().current_max += 1
self.get_success(
self.hs.get_application_service_handler()._notify_interested_services(
RoomStreamToken(
stream=self.hs.get_application_service_handler().current_max
)
)
)
@parameterized.expand(
[
("@local_as_user:test", True),
# Defining remote users in an application service user namespace regex is a
# footgun since the appservice might assume that it'll receive all events
# sent by that remote user, but it will only receive events in rooms that
# are shared with a local user. So we just remove this footgun possibility
# entirely and we won't notify the application service based on remote
# users.
("@remote_as_user:remote", False),
]
)
def test_match_interesting_room_members(
self, interesting_user: str, should_notify: bool
) -> None:
"""
Test to make sure that a interesting user (local or remote) in the room is
notified as expected when someone else in the room sends a message.
"""
# Register an application service that's interested in the `interesting_user`
interested_appservice = self._register_application_service(
namespaces={
ApplicationService.NS_USERS: [
{
"regex": interesting_user,
"exclusive": False,
},
],
},
)
# Create a room
alice = self.register_user("alice", "pass")
alice_access_token = self.login("alice", "pass")
room_id = self.helper.create_room_as(room_creator=alice, tok=alice_access_token)
# Join the interesting user to the room
self.get_success(
event_injection.inject_member_event(
self.hs, room_id, interesting_user, "join"
)
)
# Kick the appservice into checking this membership event to get the event out
# of the way
self._notify_interested_services()
# We don't care about the interesting user join event (this test is making sure
# the next thing works)
self.send_mock.reset_mock()
# Send a message from an uninteresting user
self.helper.send_event(
room_id,
type=EventTypes.Message,
content={
"msgtype": "m.text",
"body": "message from uninteresting user",
},
tok=alice_access_token,
)
# Kick the appservice into checking this new event
self._notify_interested_services()
if should_notify:
self.send_mock.assert_called_once()
(
service,
events,
_ephemeral,
_to_device_messages,
_otks,
_fbks,
_device_list_summary,
) = self.send_mock.call_args[0]
# Even though the message came from an uninteresting user, it should still
# notify us because the interesting user is joined to the room where the
# message was sent.
self.assertEqual(service, interested_appservice)
self.assertEqual(events[0]["type"], "m.room.message")
self.assertEqual(events[0]["sender"], alice)
else:
self.send_mock.assert_not_called()
def test_application_services_receive_events_sent_by_interesting_local_user(
self,
) -> None:
"""
Test to make sure that a messages sent from a local user can be interesting and
picked up by the appservice.
"""
# Register an application service that's interested in all local users
interested_appservice = self._register_application_service(
namespaces={
ApplicationService.NS_USERS: [
{
"regex": ".*",
"exclusive": False,
},
],
},
)
# Create a room
alice = self.register_user("alice", "pass")
alice_access_token = self.login("alice", "pass")
room_id = self.helper.create_room_as(room_creator=alice, tok=alice_access_token)
# We don't care about interesting events before this (this test is making sure
# the next thing works)
self.send_mock.reset_mock()
# Send a message from the interesting local user
self.helper.send_event(
room_id,
type=EventTypes.Message,
content={
"msgtype": "m.text",
"body": "message from interesting local user",
},
tok=alice_access_token,
)
# Kick the appservice into checking this new event
self._notify_interested_services()
self.send_mock.assert_called_once()
(
service,
events,
_ephemeral,
_to_device_messages,
_otks,
_fbks,
_device_list_summary,
) = self.send_mock.call_args[0]
# Events sent from an interesting local user should also be picked up as
# interesting to the appservice.
self.assertEqual(service, interested_appservice)
self.assertEqual(events[0]["type"], "m.room.message")
self.assertEqual(events[0]["sender"], alice)
def test_sending_read_receipt_batches_to_application_services(self) -> None:
"""Tests that a large batch of read receipts are sent correctly to
interested application services.
"""
# Register an application service that's interested in a certain user
# and room prefix
interested_appservice = self._register_application_service(
namespaces={
ApplicationService.NS_USERS: [
{
"regex": "@exclusive_as_user:.+",
"exclusive": True,
}
],
ApplicationService.NS_ROOMS: [
{
"regex": "!fakeroom_.*",
"exclusive": True,
}
],
},
)
# Now, pretend that we receive a large burst of read receipts (300 total) that
# all come in at once.
for i in range(300):
self.get_success(
# Insert a fake read receipt into the database
self.hs.get_datastores().main.insert_receipt(
# We have to use unique room ID + user ID combinations here, as the db query
# is an upsert.
room_id=f"!fakeroom_{i}:test",
receipt_type="m.read",
user_id=self.local_user,
event_ids=[f"$eventid_{i}"],
thread_id=None,
data={},
)
)
# Now notify the appservice handler that 300 read receipts have all arrived
# at once. What will it do!
# note: stream tokens start at 2
for stream_token in range(2, 303):
self.get_success(
self.hs.get_application_service_handler()._notify_interested_services_ephemeral(
services=[interested_appservice],
stream_key=StreamKeyType.RECEIPT,
new_token=stream_token,
users=[self.exclusive_as_user],
)
)
# Using our txn send mock, we can see what the AS received. After iterating over every
# transaction, we'd like to see all 300 read receipts accounted for.
# No more, no less.
all_ephemeral_events = []
for call in self.send_mock.call_args_list:
ephemeral_events = call[0][2]
all_ephemeral_events += ephemeral_events
# Ensure that no duplicate events were sent
self.assertEqual(len(all_ephemeral_events), 300)
# Check that the ephemeral event is a read receipt with the expected structure
latest_read_receipt = all_ephemeral_events[-1]
self.assertEqual(latest_read_receipt["type"], EduTypes.RECEIPT)
event_id = list(latest_read_receipt["content"].keys())[0]
self.assertEqual(
latest_read_receipt["content"][event_id]["m.read"], {self.local_user: {}}
)
@unittest.override_config(
{"experimental_features": {"msc2409_to_device_messages_enabled": True}}
)
def test_application_services_receive_local_to_device(self) -> None:
"""
Test that when a user sends a to-device message to another user
that is an application service's user namespace, the
application service will receive it.
"""
interested_appservice = self._register_application_service(
namespaces={
ApplicationService.NS_USERS: [
{
"regex": "@exclusive_as_user:.+",
"exclusive": True,
}
],
},
)
# Have local_user send a to-device message to exclusive_as_user
message_content = {"some_key": "some really interesting value"}
chan = self.make_request(
"PUT",
"/_matrix/client/r0/sendToDevice/m.room_key_request/3",
content={
"messages": {
self.exclusive_as_user: {
self.exclusive_as_user_device_id: message_content
}
}
},
access_token=self.local_user_token,
)
self.assertEqual(chan.code, 200, chan.result)
# Have exclusive_as_user send a to-device message to local_user
chan = self.make_request(
"PUT",
"/_matrix/client/r0/sendToDevice/m.room_key_request/4",
content={
"messages": {
self.local_user: {self.local_user_device_id: message_content}
}
},
access_token=self.exclusive_as_user_token,
)
self.assertEqual(chan.code, 200, chan.result)
# Check if our application service - that is interested in exclusive_as_user - received
# the to-device message as part of an AS transaction.
# Only the local_user -> exclusive_as_user to-device message should have been forwarded to the AS.
#
# The uninterested application service should not have been notified at all.
self.send_mock.assert_called_once()
(
service,
_events,
_ephemeral,
to_device_messages,
_otks,
_fbks,
_device_list_summary,
) = self.send_mock.call_args[0]
# Assert that this was the same to-device message that local_user sent
self.assertEqual(service, interested_appservice)
self.assertEqual(to_device_messages[0]["type"], "m.room_key_request")
self.assertEqual(to_device_messages[0]["sender"], self.local_user)
# Additional fields 'to_user_id' and 'to_device_id' specifically for
# to-device messages via the AS API
self.assertEqual(to_device_messages[0]["to_user_id"], self.exclusive_as_user)
self.assertEqual(
to_device_messages[0]["to_device_id"], self.exclusive_as_user_device_id
)
self.assertEqual(to_device_messages[0]["content"], message_content)
@unittest.override_config(
{"experimental_features": {"msc2409_to_device_messages_enabled": True}}
)
def test_application_services_receive_bursts_of_to_device(self) -> None:
"""
Test that when a user sends >100 to-device messages at once, any
interested AS's will receive them in separate transactions.
Also tests that uninterested application services do not receive messages.
"""
# Register two application services with exclusive interest in a user
interested_appservices = []
for _ in range(2):
appservice = self._register_application_service(
namespaces={
ApplicationService.NS_USERS: [
{
"regex": "@exclusive_as_user:.+",
"exclusive": True,
}
],
},
)
interested_appservices.append(appservice)
# ...and an application service which does not have any user interest.
self._register_application_service()
to_device_message_content = {
"some key": "some interesting value",
}
# We need to send a large burst of to-device messages. We also would like to
# include them all in the same application service transaction so that we can
# test large transactions.
#
# To do this, we can send a single to-device message to many user devices at
# once.
#
# We insert number_of_messages - 1 messages into the database directly. We'll then
# send a final to-device message to the real device, which will also kick off
# an AS transaction (as just inserting messages into the DB won't).
number_of_messages = 150
fake_device_ids = [f"device_{num}" for num in range(number_of_messages - 1)]
messages = {
self.exclusive_as_user: {
device_id: {
"type": "test_to_device_message",
"sender": "@some:sender",
"content": to_device_message_content,
}
for device_id in fake_device_ids
}
}
# Create a fake device per message. We can't send to-device messages to
# a device that doesn't exist.
self.get_success(
self.hs.get_datastores().main.db_pool.simple_insert_many(
desc="test_application_services_receive_burst_of_to_device",
table="devices",
keys=("user_id", "device_id"),
values=[
(
self.exclusive_as_user,
device_id,
)
for device_id in fake_device_ids
],
)
)
# Seed the device_inbox table with our fake messages
self.get_success(
self.hs.get_datastores().main.add_messages_to_device_inbox(messages, {})
)
# Now have local_user send a final to-device message to exclusive_as_user. All unsent
# to-device messages should be sent to any application services
# interested in exclusive_as_user.
chan = self.make_request(
"PUT",
"/_matrix/client/r0/sendToDevice/m.room_key_request/4",
content={
"messages": {
self.exclusive_as_user: {
self.exclusive_as_user_device_id: to_device_message_content
}
}
},
access_token=self.local_user_token,
)
self.assertEqual(chan.code, 200, chan.result)
self.send_mock.assert_called()
# Count the total number of to-device messages that were sent out per-service.
# Ensure that we only sent to-device messages to interested services, and that
# each interested service received the full count of to-device messages.
service_id_to_message_count: Dict[str, int] = {}
for call in self.send_mock.call_args_list:
(
service,
_events,
_ephemeral,
to_device_messages,
_otks,
_fbks,
_device_list_summary,
) = call[0]
# Check that this was made to an interested service
self.assertIn(service, interested_appservices)
# Add to the count of messages for this application service
service_id_to_message_count.setdefault(service.id, 0)
service_id_to_message_count[service.id] += len(to_device_messages)
# Assert that each interested service received the full count of messages
for count in service_id_to_message_count.values():
self.assertEqual(count, number_of_messages)
@unittest.override_config(
{"experimental_features": {"msc2409_to_device_messages_enabled": True}}
)
def test_application_services_receive_local_to_device_for_many_users(self) -> None:
"""
Test that when a user sends a to-device message to many users
in an application service's user namespace, the
application service will receive all of them.
"""
interested_appservice = self._register_application_service(
namespaces={
ApplicationService.NS_USERS: [
{
"regex": "@exclusive_as_user:.+",
"exclusive": True,
},
{
"regex": "@exclusive_as_user_2:.+",
"exclusive": True,
},
{
"regex": "@exclusive_as_user_3:.+",
"exclusive": True,
},
],
},
)
# Have local_user send a to-device message to exclusive_as_users
message_content = {"some_key": "some really interesting value"}
chan = self.make_request(
"PUT",
"/_matrix/client/r0/sendToDevice/m.room_key_request/3",
content={
"messages": {
self.exclusive_as_user: {
self.exclusive_as_user_device_id: message_content
},
self.exclusive_as_user_2: {
self.exclusive_as_user_2_device_id: message_content
},
self.exclusive_as_user_3: {
self.exclusive_as_user_3_device_id: message_content
},
}
},
access_token=self.local_user_token,
)
self.assertEqual(chan.code, 200, chan.result)
# Have exclusive_as_user send a to-device message to local_user
for user_token in [
self.exclusive_as_user_token,
self.exclusive_as_user_2_token,
self.exclusive_as_user_3_token,
]:
chan = self.make_request(
"PUT",
"/_matrix/client/r0/sendToDevice/m.room_key_request/4",
content={
"messages": {
self.local_user: {self.local_user_device_id: message_content}
}
},
access_token=user_token,
)
self.assertEqual(chan.code, 200, chan.result)
# Check if our application service - that is interested in exclusive_as_user - received
# the to-device message as part of an AS transaction.
# Only the local_user -> exclusive_as_user to-device message should have been forwarded to the AS.
#
# The uninterested application service should not have been notified at all.
self.send_mock.assert_called_once()
(
service,
_events,
_ephemeral,
to_device_messages,
_otks,
_fbks,
_device_list_summary,
) = self.send_mock.call_args[0]
# Assert that this was the same to-device message that local_user sent
self.assertEqual(service, interested_appservice)
# Assert expected number of messages
self.assertEqual(len(to_device_messages), 3)
for device_msg in to_device_messages:
self.assertEqual(device_msg["type"], "m.room_key_request")
self.assertEqual(device_msg["sender"], self.local_user)
self.assertEqual(device_msg["content"], message_content)
self.assertEqual(to_device_messages[0]["to_user_id"], self.exclusive_as_user)
self.assertEqual(
to_device_messages[0]["to_device_id"],
self.exclusive_as_user_device_id,
)
self.assertEqual(to_device_messages[1]["to_user_id"], self.exclusive_as_user_2)
self.assertEqual(
to_device_messages[1]["to_device_id"],
self.exclusive_as_user_2_device_id,
)
self.assertEqual(to_device_messages[2]["to_user_id"], self.exclusive_as_user_3)
self.assertEqual(
to_device_messages[2]["to_device_id"],
self.exclusive_as_user_3_device_id,
)
def _register_application_service(
self,
namespaces: Optional[Dict[str, Iterable[Dict]]] = None,
) -> ApplicationService:
"""
Register a new application service, with the given namespaces of interest.
Args:
namespaces: A dictionary containing any user, room or alias namespaces that
the application service is interested in.
Returns:
The registered application service.
"""
# Create an application service
appservice = ApplicationService(
token=random_string(10),
id=random_string(10),
sender="@as:example.com",
rate_limited=False,
namespaces=namespaces,
supports_ephemeral=True,
)
# Register the application service
self._services.append(appservice)
return appservice
class ApplicationServicesHandlerDeviceListsTestCase(unittest.HomeserverTestCase):
"""
Tests that the ApplicationServicesHandler sends device list updates to application
services correctly.
"""
servlets = [
synapse.rest.admin.register_servlets_for_client_rest_resource,
login.register_servlets,
room.register_servlets,
]
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
# Allow us to modify cached feature flags mid-test
self.as_handler = hs.get_application_service_handler()
# Mock ApplicationServiceApi's put_json, so we can verify the raw JSON that
# will be sent over the wire
self.put_json = AsyncMock()
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hs.get_application_service_api().put_json = self.put_json # type: ignore[method-assign]
# Mock out application services, and allow defining our own in tests
self._services: List[ApplicationService] = []
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self.hs.get_datastores().main.get_app_services = Mock( # type: ignore[method-assign]
return_value=self._services
)
# Test across a variety of configuration values
@parameterized.expand(
[
(True, True, True),
(True, False, False),
(False, True, False),
(False, False, False),
]
)
def test_application_service_receives_device_list_updates(
self,
experimental_feature_enabled: bool,
as_supports_txn_extensions: bool,
as_should_receive_device_list_updates: bool,
) -> None:
"""
Tests that an application service receives notice of changed device
lists for a user, when a user changes their device lists.
Arguments above are populated by parameterized.
Args:
as_should_receive_device_list_updates: Whether we expect the AS to receive the
device list changes.
experimental_feature_enabled: Whether the "msc3202_transaction_extensions" experimental
feature is enabled. This feature must be enabled for device lists to ASs to work.
as_supports_txn_extensions: Whether the application service has explicitly registered
to receive information defined by MSC3202 - which includes device list changes.
"""
# Change whether the experimental feature is enabled or disabled before making
# device list changes
self.as_handler._msc3202_transaction_extensions_enabled = (
experimental_feature_enabled
)
# Create an appservice that is interested in "local_user"
appservice = ApplicationService(
token=random_string(10),
id=random_string(10),
sender="@as:example.com",
rate_limited=False,
namespaces={
ApplicationService.NS_USERS: [
{
"regex": "@local_user:.+",
"exclusive": False,
}
],
},
supports_ephemeral=True,
msc3202_transaction_extensions=as_supports_txn_extensions,
# Must be set for Synapse to try pushing data to the AS
hs_token="abcde",
url="some_url",
)
# Register the application service
self._services.append(appservice)
# Register a user on the homeserver
self.local_user = self.register_user("local_user", "password")
self.local_user_token = self.login("local_user", "password")
if as_should_receive_device_list_updates:
# Ensure that the resulting JSON uses the unstable prefix and contains the
# expected users
self.put_json.assert_called_once()
json_body = self.put_json.call_args[1]["json_body"]
# Our application service should have received a device list update with
# "local_user" in the "changed" list
device_list_dict = json_body.get("org.matrix.msc3202.device_lists", {})
self.assertEqual([], device_list_dict["left"])
self.assertEqual([self.local_user], device_list_dict["changed"])
else:
# No device list changes should have been sent out
self.put_json.assert_not_called()
class ApplicationServicesHandlerOtkCountsTestCase(unittest.HomeserverTestCase):
# Argument indices for pulling out arguments from a `send_mock`.
ARG_OTK_COUNTS = 4
ARG_FALLBACK_KEYS = 5
servlets = [
synapse.rest.admin.register_servlets_for_client_rest_resource,
login.register_servlets,
register.register_servlets,
room.register_servlets,
sendtodevice.register_servlets,
receipts.register_servlets,
]
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
# Mock the ApplicationServiceScheduler's _TransactionController's send method so that
# we can track what's going out
self.send_mock = AsyncMock()
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hs.get_application_service_handler().scheduler.txn_ctrl.send = self.send_mock # type: ignore[method-assign] # We assign to a method.
# Define an application service for the tests
self._service_token = "VERYSECRET"
self._service = ApplicationService(
self._service_token,
"as1",
"@as.sender:test",
namespaces={
"users": [
{"regex": "@_as_.*:test", "exclusive": True},
{"regex": "@as.sender:test", "exclusive": True},
]
},
msc3202_transaction_extensions=True,
)
self.hs.get_datastores().main.services_cache = [self._service]
# Register some appservice users
self._sender_user, self._sender_device = self.register_appservice_user(
"as.sender", self._service_token
)
self._namespaced_user, self._namespaced_device = self.register_appservice_user(
"_as_user1", self._service_token
)
# Register a real user as well.
self._real_user = self.register_user("real.user", "meow")
self._real_user_token = self.login("real.user", "meow")
async def _add_otks_for_device(
self, user_id: str, device_id: str, otk_count: int
) -> None:
"""
Add some dummy keys. It doesn't matter if they're not a real algorithm;
that should be opaque to the server anyway.
"""
await self.hs.get_datastores().main.add_e2e_one_time_keys(
user_id,
device_id,
self.clock.time_msec(),
[("algo", f"k{i}", "{}") for i in range(otk_count)],
)
async def _add_fallback_key_for_device(
self, user_id: str, device_id: str, used: bool
) -> None:
"""
Adds a fake fallback key to a device, optionally marking it as used
right away.
"""
store = self.hs.get_datastores().main
await store.set_e2e_fallback_keys(user_id, device_id, {"algo:fk": "fall back!"})
if used is True:
# Mark the key as used
await store.db_pool.simple_update_one(
table="e2e_fallback_keys_json",
keyvalues={
"user_id": user_id,
"device_id": device_id,
"algorithm": "algo",
"key_id": "fk",
},
updatevalues={"used": True},
desc="_get_fallback_key_set_used",
)
def _set_up_devices_and_a_room(self) -> str:
"""
Helper to set up devices for all the users
and a room for the users to talk in.
"""
async def preparation() -> None:
await self._add_otks_for_device(self._sender_user, self._sender_device, 42)
await self._add_fallback_key_for_device(
self._sender_user, self._sender_device, used=True
)
await self._add_otks_for_device(
self._namespaced_user, self._namespaced_device, 36
)
await self._add_fallback_key_for_device(
self._namespaced_user, self._namespaced_device, used=False
)
# Register a device for the real user, too, so that we can later ensure
# that we don't leak information to the AS about the non-AS user.
await self.hs.get_datastores().main.store_device(
self._real_user, "REALDEV", "UltraMatrix 3000"
)
await self._add_otks_for_device(self._real_user, "REALDEV", 50)
self.get_success(preparation())
room_id = self.helper.create_room_as(
self._real_user, is_public=True, tok=self._real_user_token
)
self.helper.join(
room_id,
self._namespaced_user,
tok=self._service_token,
appservice_user_id=self._namespaced_user,
)
# Check it was called for sanity. (This was to send the join event to the AS.)
self.send_mock.assert_called()
self.send_mock.reset_mock()
return room_id
@override_config(
{"experimental_features": {"msc3202_transaction_extensions": True}}
)
def test_application_services_receive_otk_counts_and_fallback_key_usages_with_pdus(
self,
) -> None:
"""
Tests that:
- the AS receives one-time key counts and unused fallback keys for:
- the specified sender; and
- any user who is in receipt of the PDUs
"""
room_id = self._set_up_devices_and_a_room()
# Send a message into the AS's room
self.helper.send(room_id, "woof woof", tok=self._real_user_token)
# Capture what was sent as an AS transaction.
self.send_mock.assert_called()
last_args, _last_kwargs = self.send_mock.call_args
otks: Optional[TransactionOneTimeKeysCount] = last_args[self.ARG_OTK_COUNTS]
unused_fallbacks: Optional[TransactionUnusedFallbackKeys] = last_args[
self.ARG_FALLBACK_KEYS
]
self.assertEqual(
otks,
{
"@as.sender:test": {self._sender_device: {"algo": 42}},
"@_as_user1:test": {self._namespaced_device: {"algo": 36}},
},
)
self.assertEqual(
unused_fallbacks,
{
"@as.sender:test": {self._sender_device: []},
"@_as_user1:test": {self._namespaced_device: ["algo"]},
},
)