mirror of
https://git.anonymousland.org/anonymousland/synapse-product.git
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334 lines
10 KiB
Python
334 lines
10 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2018 New Vector Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from mock import Mock
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from twisted.internet import defer
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from twisted.internet.defer import TimeoutError
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from twisted.internet.error import ConnectingCancelledError, DNSLookupError
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from twisted.test.proto_helpers import StringTransport
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from twisted.web.client import ResponseNeverReceived
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from twisted.web.http import HTTPChannel
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from synapse.api.errors import RequestSendFailed
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from synapse.http.matrixfederationclient import (
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MatrixFederationHttpClient,
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MatrixFederationRequest,
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)
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from synapse.util.logcontext import LoggingContext
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from tests.server import FakeTransport
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from tests.unittest import HomeserverTestCase
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def check_logcontext(context):
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current = LoggingContext.current_context()
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if current is not context:
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raise AssertionError(
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"Expected logcontext %s but was %s" % (context, current),
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)
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class FederationClientTests(HomeserverTestCase):
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def make_homeserver(self, reactor, clock):
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hs = self.setup_test_homeserver(reactor=reactor, clock=clock)
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hs.tls_client_options_factory = None
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return hs
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def prepare(self, reactor, clock, homeserver):
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self.cl = MatrixFederationHttpClient(self.hs)
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self.reactor.lookups["testserv"] = "1.2.3.4"
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def test_client_get(self):
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"""
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happy-path test of a GET request
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"""
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@defer.inlineCallbacks
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def do_request():
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with LoggingContext("one") as context:
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fetch_d = self.cl.get_json("testserv:8008", "foo/bar")
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# Nothing happened yet
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self.assertNoResult(fetch_d)
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# should have reset logcontext to the sentinel
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check_logcontext(LoggingContext.sentinel)
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try:
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fetch_res = yield fetch_d
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defer.returnValue(fetch_res)
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finally:
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check_logcontext(context)
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test_d = do_request()
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self.pump()
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# Nothing happened yet
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self.assertNoResult(test_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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(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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# complete the connection and wire it up to a fake transport
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protocol = factory.buildProtocol(None)
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transport = StringTransport()
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protocol.makeConnection(transport)
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# that should have made it send the request to the transport
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self.assertRegex(transport.value(), b"^GET /foo/bar")
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# Deferred is still without a result
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self.assertNoResult(test_d)
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# Send it the HTTP response
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res_json = '{ "a": 1 }'.encode('ascii')
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protocol.dataReceived(
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b"HTTP/1.1 200 OK\r\n"
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b"Server: Fake\r\n"
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b"Content-Type: application/json\r\n"
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b"Content-Length: %i\r\n"
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b"\r\n"
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b"%s" % (len(res_json), res_json)
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)
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self.pump()
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res = self.successResultOf(test_d)
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# check the response is as expected
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self.assertEqual(res, {"a": 1})
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def test_dns_error(self):
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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 = self.cl.get_json("testserv2:8008", "foo/bar", timeout=10000)
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self.pump()
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f = self.failureResultOf(d)
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self.assertIsInstance(f.value, RequestSendFailed)
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self.assertIsInstance(f.value.inner_exception, DNSLookupError)
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def test_client_connection_refused(self):
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d = self.cl.get_json("testserv:8008", "foo/bar", timeout=10000)
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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.assertIsInstance(f.value, RequestSendFailed)
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self.assertIs(f.value.inner_exception, e)
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def test_client_never_connect(self):
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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 = self.cl.get_json("testserv:8008", "foo/bar", timeout=10000)
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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(10.5)
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f = self.failureResultOf(d)
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self.assertIsInstance(f.value, RequestSendFailed)
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self.assertIsInstance(
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f.value.inner_exception,
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(ConnectingCancelledError, TimeoutError),
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)
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def test_client_connect_no_response(self):
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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 = self.cl.get_json("testserv:8008", "foo/bar", timeout=10000)
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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(10.5)
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f = self.failureResultOf(d)
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self.assertIsInstance(f.value, RequestSendFailed)
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self.assertIsInstance(f.value.inner_exception, ResponseNeverReceived)
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def test_client_gets_headers(self):
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"""
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Once the client gets the headers, _request returns successfully.
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"""
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request = MatrixFederationRequest(
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method="GET",
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destination="testserv:8008",
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path="foo/bar",
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)
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d = self.cl._send_request(request, timeout=10000)
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self.pump()
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conn = Mock()
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clients = self.reactor.tcpClients
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client = clients[0][2].buildProtocol(None)
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client.makeConnection(conn)
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# Deferred does not have a result
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self.assertNoResult(d)
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# Send it the HTTP response
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client.dataReceived(b"HTTP/1.1 200 OK\r\nServer: Fake\r\n\r\n")
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# We should get a successful response
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r = self.successResultOf(d)
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self.assertEqual(r.code, 200)
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def test_client_headers_no_body(self):
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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 = self.cl.post_json("testserv:8008", "foo/bar", timeout=10000)
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self.pump()
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conn = Mock()
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clients = self.reactor.tcpClients
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client = clients[0][2].buildProtocol(None)
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client.makeConnection(conn)
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# Deferred does not have a result
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self.assertNoResult(d)
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# Send it the HTTP response
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client.dataReceived(
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(b"HTTP/1.1 200 OK\r\nContent-Type: application/json\r\n"
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b"Server: Fake\r\n\r\n")
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)
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# Push by enough to time it out
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self.reactor.advance(10.5)
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f = self.failureResultOf(d)
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self.assertIsInstance(f.value, TimeoutError)
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def test_client_sends_body(self):
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self.cl.post_json(
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"testserv:8008", "foo/bar", timeout=10000,
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data={"a": "b"}
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)
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self.pump()
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clients = self.reactor.tcpClients
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self.assertEqual(len(clients), 1)
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client = clients[0][2].buildProtocol(None)
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server = HTTPChannel()
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client.makeConnection(FakeTransport(server, self.reactor))
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server.makeConnection(FakeTransport(client, self.reactor))
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self.pump(0.1)
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self.assertEqual(len(server.requests), 1)
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request = server.requests[0]
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content = request.content.read()
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self.assertEqual(content, b'{"a":"b"}')
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def test_closes_connection(self):
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"""Check that the client closes unused HTTP connections"""
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d = self.cl.get_json("testserv:8008", "foo/bar")
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self.pump()
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# there should have been a call to connectTCP
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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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# complete the connection and wire it up to a fake transport
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client = factory.buildProtocol(None)
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conn = StringTransport()
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client.makeConnection(conn)
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# that should have made it send the request to the connection
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self.assertRegex(conn.value(), b"^GET /foo/bar")
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# Send the HTTP response
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client.dataReceived(
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b"HTTP/1.1 200 OK\r\n"
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b"Content-Type: application/json\r\n"
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b"Content-Length: 2\r\n"
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b"\r\n"
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b"{}"
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)
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# We should get a successful response
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r = self.successResultOf(d)
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self.assertEqual(r, {})
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self.assertFalse(conn.disconnecting)
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# wait for a while
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self.pump(120)
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self.assertTrue(conn.disconnecting)
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