86 lines
3.1 KiB
Python
86 lines
3.1 KiB
Python
# Copyright 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 twisted.internet.address import IPv6Address
|
|
from twisted.test.proto_helpers import MemoryReactor, StringTransport
|
|
|
|
from synapse.app.homeserver import SynapseHomeServer
|
|
from synapse.server import HomeServer
|
|
from synapse.util import Clock
|
|
|
|
from tests.unittest import HomeserverTestCase
|
|
|
|
|
|
class SynapseRequestTestCase(HomeserverTestCase):
|
|
def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
|
|
return self.setup_test_homeserver(homeserver_to_use=SynapseHomeServer)
|
|
|
|
def test_large_request(self) -> None:
|
|
"""overlarge HTTP requests should be rejected"""
|
|
self.hs.start_listening()
|
|
|
|
# find the HTTP server which is configured to listen on port 0
|
|
(port, factory, _backlog, interface) = self.reactor.tcpServers[0]
|
|
self.assertEqual(interface, "::")
|
|
self.assertEqual(port, 0)
|
|
|
|
# as a control case, first send a regular request.
|
|
|
|
# complete the connection and wire it up to a fake transport
|
|
client_address = IPv6Address("TCP", "::1", 2345)
|
|
protocol = factory.buildProtocol(client_address)
|
|
transport = StringTransport()
|
|
protocol.makeConnection(transport)
|
|
|
|
protocol.dataReceived(
|
|
b"POST / HTTP/1.1\r\n"
|
|
b"Connection: close\r\n"
|
|
b"Transfer-Encoding: chunked\r\n"
|
|
b"\r\n"
|
|
b"0\r\n"
|
|
b"\r\n"
|
|
)
|
|
|
|
while not transport.disconnecting:
|
|
self.reactor.advance(1)
|
|
|
|
# we should get a 404
|
|
self.assertRegex(transport.value().decode(), r"^HTTP/1\.1 404 ")
|
|
|
|
# now send an oversized request
|
|
protocol = factory.buildProtocol(client_address)
|
|
transport = StringTransport()
|
|
protocol.makeConnection(transport)
|
|
|
|
protocol.dataReceived(
|
|
b"POST / HTTP/1.1\r\n"
|
|
b"Connection: close\r\n"
|
|
b"Transfer-Encoding: chunked\r\n"
|
|
b"\r\n"
|
|
)
|
|
|
|
# we deliberately send all the data in one big chunk, to ensure that
|
|
# twisted isn't buffering the data in the chunked transfer decoder.
|
|
# we start with the chunk size, in hex. (We won't actually send this much)
|
|
protocol.dataReceived(b"10000000\r\n")
|
|
sent = 0
|
|
while not transport.disconnected:
|
|
self.assertLess(sent, 0x10000000, "connection did not drop")
|
|
protocol.dataReceived(b"\0" * 1024)
|
|
sent += 1024
|
|
|
|
# default max upload size is 50M, so it should drop on the next buffer after
|
|
# that.
|
|
self.assertEqual(sent, 50 * 1024 * 1024 + 1024)
|