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# Copyright 2020 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 Tuple
from twisted.internet.address import IPv4Address
from twisted.internet.interfaces import IProtocol
from twisted.test.proto_helpers import StringTransport
from synapse.replication.tcp.resource import ReplicationStreamProtocolFactory
from tests.unittest import HomeserverTestCase
class RemoteServerUpTestCase(HomeserverTestCase):
def prepare(self, reactor, clock, hs):
self.factory = ReplicationStreamProtocolFactory(hs)
def _make_client(self) -> Tuple[IProtocol, StringTransport]:
"""Create a new direct TCP replication connection"""
proto = self.factory.buildProtocol(IPv4Address("TCP", "127.0.0.1", 0))
transport = StringTransport()
proto.makeConnection(transport)
# We can safely ignore the commands received during connection.
self.pump()
transport.clear()
return proto, transport
def test_relay(self):
"""Test that Synapse will relay REMOTE_SERVER_UP commands to all
other connections, but not the one that sent it.
"""
proto1, transport1 = self._make_client()
# We shouldn't receive an echo.
proto1.dataReceived(b"REMOTE_SERVER_UP example.com\n")
self.pump()
self.assertEqual(transport1.value(), b"")
# But we should see an echo if we connect another client
proto2, transport2 = self._make_client()
proto1.dataReceived(b"REMOTE_SERVER_UP example.com\n")
self.pump()
self.assertEqual(transport1.value(), b"")
self.assertEqual(transport2.value(), b"REMOTE_SERVER_UP example.com\n")
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