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23740eaa3d
During the migration the automated script to update the copyright headers accidentally got rid of some of the existing copyright lines. Reinstate them.
188 lines
6.1 KiB
Python
188 lines
6.1 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright 2020 The Matrix.org Foundation C.I.C.
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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from unittest.mock import Mock
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from netaddr import IPSet
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from twisted.internet import defer
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from twisted.internet.error import DNSLookupError
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from twisted.test.proto_helpers import MemoryReactor
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from synapse.http import RequestTimedOutError
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from synapse.http.client import SimpleHttpClient
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from synapse.server import HomeServer
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from synapse.util import Clock
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from tests.unittest import HomeserverTestCase
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class SimpleHttpClientTests(HomeserverTestCase):
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def prepare(self, reactor: MemoryReactor, clock: Clock, hs: "HomeServer") -> None:
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# Add a DNS entry for a test server
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self.reactor.lookups["testserv"] = "1.2.3.4"
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self.cl = hs.get_simple_http_client()
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def test_dns_error(self) -> None:
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"""
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If the DNS lookup returns an error, it will bubble up.
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"""
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d = defer.ensureDeferred(self.cl.get_json("http://testserv2:8008/foo/bar"))
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self.pump()
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f = self.failureResultOf(d)
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self.assertIsInstance(f.value, DNSLookupError)
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def test_client_connection_refused(self) -> None:
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d = defer.ensureDeferred(self.cl.get_json("http://testserv:8008/foo/bar"))
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self.pump()
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# Nothing happened yet
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self.assertNoResult(d)
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clients = self.reactor.tcpClients
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self.assertEqual(len(clients), 1)
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(host, port, factory, _timeout, _bindAddress) = clients[0]
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self.assertEqual(host, "1.2.3.4")
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self.assertEqual(port, 8008)
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e = Exception("go away")
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factory.clientConnectionFailed(None, e)
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self.pump(0.5)
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f = self.failureResultOf(d)
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self.assertIs(f.value, e)
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def test_client_never_connect(self) -> None:
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"""
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If the HTTP request is not connected and is timed out, it'll give a
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ConnectingCancelledError or TimeoutError.
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"""
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d = defer.ensureDeferred(self.cl.get_json("http://testserv:8008/foo/bar"))
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self.pump()
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# Nothing happened yet
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self.assertNoResult(d)
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# Make sure treq is trying to connect
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clients = self.reactor.tcpClients
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self.assertEqual(len(clients), 1)
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self.assertEqual(clients[0][0], "1.2.3.4")
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self.assertEqual(clients[0][1], 8008)
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# Deferred is still without a result
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self.assertNoResult(d)
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# Push by enough to time it out
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self.reactor.advance(120)
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f = self.failureResultOf(d)
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self.assertIsInstance(f.value, RequestTimedOutError)
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def test_client_connect_no_response(self) -> None:
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"""
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If the HTTP request is connected, but gets no response before being
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timed out, it'll give a ResponseNeverReceived.
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"""
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d = defer.ensureDeferred(self.cl.get_json("http://testserv:8008/foo/bar"))
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self.pump()
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# Nothing happened yet
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self.assertNoResult(d)
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# Make sure treq is trying to connect
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clients = self.reactor.tcpClients
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self.assertEqual(len(clients), 1)
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self.assertEqual(clients[0][0], "1.2.3.4")
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self.assertEqual(clients[0][1], 8008)
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conn = Mock()
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client = clients[0][2].buildProtocol(None)
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client.makeConnection(conn)
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# Deferred is still without a result
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self.assertNoResult(d)
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# Push by enough to time it out
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self.reactor.advance(120)
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f = self.failureResultOf(d)
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self.assertIsInstance(f.value, RequestTimedOutError)
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def test_client_ip_range_blocklist(self) -> None:
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"""Ensure that Synapse does not try to connect to blocked IPs"""
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# Add some DNS entries we'll block
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self.reactor.lookups["internal"] = "127.0.0.1"
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self.reactor.lookups["internalv6"] = "fe80:0:0:0:0:8a2e:370:7337"
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ip_blocklist = IPSet(["127.0.0.0/8", "fe80::/64"])
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cl = SimpleHttpClient(self.hs, ip_blocklist=ip_blocklist)
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# Try making a GET request to a blocked IPv4 address
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# ------------------------------------------------------
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# Make the request
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d = defer.ensureDeferred(cl.get_json("http://internal:8008/foo/bar"))
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self.pump(1)
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# Check that it was unable to resolve the address
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clients = self.reactor.tcpClients
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self.assertEqual(len(clients), 0)
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self.failureResultOf(d, DNSLookupError)
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# Try making a POST request to a blocked IPv6 address
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# -------------------------------------------------------
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# Make the request
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d = defer.ensureDeferred(
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cl.post_json_get_json("http://internalv6:8008/foo/bar", {})
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)
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# Move the reactor forwards
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self.pump(1)
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# Check that it was unable to resolve the address
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clients = self.reactor.tcpClients
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self.assertEqual(len(clients), 0)
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# Check that it was due to a blocked DNS lookup
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self.failureResultOf(d, DNSLookupError)
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# Try making a GET request to a non-blocked IPv4 address
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# ----------------------------------------------------------
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# Make the request
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d = defer.ensureDeferred(cl.get_json("http://testserv:8008/foo/bar"))
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# Nothing has happened yet
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self.assertNoResult(d)
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# Move the reactor forwards
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self.pump(1)
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# Check that it was able to resolve the address
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clients = self.reactor.tcpClients
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self.assertNotEqual(len(clients), 0)
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# Connection will still fail as this IP address does not resolve to anything
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self.failureResultOf(d, RequestTimedOutError)
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