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Convert the federation agent and related code to async/await. (#7874)

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Patrick Cloke 2020-07-23 07:05:57 -04:00 • committed by GitHub
parent 13d77464c9
commit 68cd935826
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5 changed files with 51 additions and 53 deletions
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51
tests/http/federation/test_matrix_federation_agent.py
View file

@ -67,6 +67,14 @@ def get_connection_factory():
return test_server_connection_factory
# Once Async Mocks or lambdas are supported this can go away.
def generate_resolve_service(result):
async def resolve_service(_):
return result
return resolve_service
class MatrixFederationAgentTests(unittest.TestCase):
def setUp(self):
self.reactor = ThreadedMemoryReactorClock()
@ -373,7 +381,7 @@ class MatrixFederationAgentTests(unittest.TestCase):
"""
Test the behaviour when the certificate on the server doesn't match the hostname
"""
self.mock_resolver.resolve_service.side_effect = lambda _: []
self.mock_resolver.resolve_service.side_effect = generate_resolve_service([])
self.reactor.lookups["testserv1"] = "1.2.3.4"
test_d = self._make_get_request(b"matrix://testserv1/foo/bar")
@ -456,7 +464,7 @@ class MatrixFederationAgentTests(unittest.TestCase):
Test the behaviour when the server name has no port, no SRV, and no well-known
"""
self.mock_resolver.resolve_service.side_effect = lambda _: []
self.mock_resolver.resolve_service.side_effect = generate_resolve_service([])
self.reactor.lookups["testserv"] = "1.2.3.4"
test_d = self._make_get_request(b"matrix://testserv/foo/bar")
@ -510,7 +518,7 @@ class MatrixFederationAgentTests(unittest.TestCase):
"""Test the behaviour when the .well-known delegates elsewhere
"""
self.mock_resolver.resolve_service.side_effect = lambda _: []
self.mock_resolver.resolve_service.side_effect = generate_resolve_service([])
self.reactor.lookups["testserv"] = "1.2.3.4"
self.reactor.lookups["target-server"] = "1::f"
@ -572,7 +580,7 @@ class MatrixFederationAgentTests(unittest.TestCase):
"""Test the behaviour when the server name has no port and no SRV record, but
the .well-known has a 300 redirect
"""
self.mock_resolver.resolve_service.side_effect = lambda _: []
self.mock_resolver.resolve_service.side_effect = generate_resolve_service([])
self.reactor.lookups["testserv"] = "1.2.3.4"
self.reactor.lookups["target-server"] = "1::f"
@ -661,7 +669,7 @@ class MatrixFederationAgentTests(unittest.TestCase):
Test the behaviour when the server name has an *invalid* well-known (and no SRV)
"""
self.mock_resolver.resolve_service.side_effect = lambda _: []
self.mock_resolver.resolve_service.side_effect = generate_resolve_service([])
self.reactor.lookups["testserv"] = "1.2.3.4"
test_d = self._make_get_request(b"matrix://testserv/foo/bar")
@ -717,7 +725,7 @@ class MatrixFederationAgentTests(unittest.TestCase):
# the config left to the default, which will not trust it (since the
# presented cert is signed by a test CA)
self.mock_resolver.resolve_service.side_effect = lambda _: []
self.mock_resolver.resolve_service.side_effect = generate_resolve_service([])
self.reactor.lookups["testserv"] = "1.2.3.4"
config = default_config("test", parse=True)
@ -764,9 +772,9 @@ class MatrixFederationAgentTests(unittest.TestCase):
"""
Test the behaviour when there is a single SRV record
"""
self.mock_resolver.resolve_service.side_effect = lambda _: [
Server(host=b"srvtarget", port=8443)
]
self.mock_resolver.resolve_service.side_effect = generate_resolve_service(
[Server(host=b"srvtarget", port=8443)]
)
self.reactor.lookups["srvtarget"] = "1.2.3.4"
test_d = self._make_get_request(b"matrix://testserv/foo/bar")
@ -819,9 +827,9 @@ class MatrixFederationAgentTests(unittest.TestCase):
self.assertEqual(host, "1.2.3.4")
self.assertEqual(port, 443)
self.mock_resolver.resolve_service.side_effect = lambda _: [
Server(host=b"srvtarget", port=8443)
]
self.mock_resolver.resolve_service.side_effect = generate_resolve_service(
[Server(host=b"srvtarget", port=8443)]
)
self._handle_well_known_connection(
client_factory,
@ -861,7 +869,7 @@ class MatrixFederationAgentTests(unittest.TestCase):
def test_idna_servername(self):
"""test the behaviour when the server name has idna chars in"""
self.mock_resolver.resolve_service.side_effect = lambda _: []
self.mock_resolver.resolve_service.side_effect = generate_resolve_service([])
# the resolver is always called with the IDNA hostname as a native string.
self.reactor.lookups["xn--bcher-kva.com"] = "1.2.3.4"
@ -922,9 +930,9 @@ class MatrixFederationAgentTests(unittest.TestCase):
def test_idna_srv_target(self):
"""test the behaviour when the target of a SRV record has idna chars"""
self.mock_resolver.resolve_service.side_effect = lambda _: [
Server(host=b"xn--trget-3qa.com", port=8443) # târget.com
]
self.mock_resolver.resolve_service.side_effect = generate_resolve_service(
[Server(host=b"xn--trget-3qa.com", port=8443)] # târget.com
)
self.reactor.lookups["xn--trget-3qa.com"] = "1.2.3.4"
test_d = self._make_get_request(b"matrix://xn--bcher-kva.com/foo/bar")
@ -1087,11 +1095,12 @@ class MatrixFederationAgentTests(unittest.TestCase):
def test_srv_fallbacks(self):
"""Test that other SRV results are tried if the first one fails.
"""
self.mock_resolver.resolve_service.side_effect = lambda _: [
Server(host=b"target.com", port=8443),
Server(host=b"target.com", port=8444),
]
self.mock_resolver.resolve_service.side_effect = generate_resolve_service(
[
Server(host=b"target.com", port=8443),
Server(host=b"target.com", port=8444),
]
)
self.reactor.lookups["target.com"] = "1.2.3.4"
test_d = self._make_get_request(b"matrix://testserv/foo/bar")

26
tests/http/federation/test_srv_resolver.py
View file

@ -22,7 +22,7 @@ from twisted.internet.error import ConnectError
from twisted.names import dns, error
from synapse.http.federation.srv_resolver import SrvResolver
from synapse.logging.context import SENTINEL_CONTEXT, LoggingContext, current_context
from synapse.logging.context import LoggingContext, current_context
from tests import unittest
from tests.utils import MockClock
@ -50,13 +50,7 @@ class SrvResolverTestCase(unittest.TestCase):
with LoggingContext("one") as ctx:
resolve_d = resolver.resolve_service(service_name)
self.assertNoResult(resolve_d)
# should have reset to the sentinel context
self.assertIs(current_context(), SENTINEL_CONTEXT)
result = yield resolve_d
result = yield defer.ensureDeferred(resolve_d)
# should have restored our context
self.assertIs(current_context(), ctx)
@ -91,7 +85,7 @@ class SrvResolverTestCase(unittest.TestCase):
cache = {service_name: [entry]}
resolver = SrvResolver(dns_client=dns_client_mock, cache=cache)
servers = yield resolver.resolve_service(service_name)
servers = yield defer.ensureDeferred(resolver.resolve_service(service_name))
dns_client_mock.lookupService.assert_called_once_with(service_name)
@ -117,7 +111,7 @@ class SrvResolverTestCase(unittest.TestCase):
dns_client=dns_client_mock, cache=cache, get_time=clock.time
)
servers = yield resolver.resolve_service(service_name)
servers = yield defer.ensureDeferred(resolver.resolve_service(service_name))
self.assertFalse(dns_client_mock.lookupService.called)
@ -136,7 +130,7 @@ class SrvResolverTestCase(unittest.TestCase):
resolver = SrvResolver(dns_client=dns_client_mock, cache=cache)
with self.assertRaises(error.DNSServerError):
yield resolver.resolve_service(service_name)
yield defer.ensureDeferred(resolver.resolve_service(service_name))
@defer.inlineCallbacks
def test_name_error(self):
@ -149,7 +143,7 @@ class SrvResolverTestCase(unittest.TestCase):
cache = {}
resolver = SrvResolver(dns_client=dns_client_mock, cache=cache)
servers = yield resolver.resolve_service(service_name)
servers = yield defer.ensureDeferred(resolver.resolve_service(service_name))
self.assertEquals(len(servers), 0)
self.assertEquals(len(cache), 0)
@ -166,8 +160,8 @@ class SrvResolverTestCase(unittest.TestCase):
cache = {}
resolver = SrvResolver(dns_client=dns_client_mock, cache=cache)
resolve_d = resolver.resolve_service(service_name)
self.assertNoResult(resolve_d)
# Old versions of Twisted don't have an ensureDeferred in failureResultOf.
resolve_d = defer.ensureDeferred(resolver.resolve_service(service_name))
# returning a single "." should make the lookup fail with a ConenctError
lookup_deferred.callback(
@ -192,8 +186,8 @@ class SrvResolverTestCase(unittest.TestCase):
cache = {}
resolver = SrvResolver(dns_client=dns_client_mock, cache=cache)
resolve_d = resolver.resolve_service(service_name)
self.assertNoResult(resolve_d)
# Old versions of Twisted don't have an ensureDeferred in successResultOf.
resolve_d = defer.ensureDeferred(resolver.resolve_service(service_name))
lookup_deferred.callback(
(