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Rewrite KeyringTestCase as a HomeServerTestCase (#4986)

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This is a bit fiddly due to the keyring doing weird things with logcontexts.
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Richard van der Hoff 2019-04-03 14:11:27 +01:00 committed by GitHub
parent e8419554ff
commit e4d473d855
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2 changed files with 99 additions and 101 deletions
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changelog.d/4985.misc Normal file
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@ -0,0 +1 @@
Rewrite KeyringTestCase as a HomeserverTestCase.

199
tests/crypto/test_keyring.py
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@ -19,14 +19,14 @@ from mock import Mock
import signedjson.key
import signedjson.sign
from twisted.internet import defer, reactor
from twisted.internet import defer
from synapse.api.errors import SynapseError
from synapse.crypto import keyring
from synapse.util import Clock, logcontext
from synapse.util import logcontext
from synapse.util.logcontext import LoggingContext
from tests import unittest, utils
from tests import unittest
class MockPerspectiveServer(object):
@ -52,75 +52,50 @@ class MockPerspectiveServer(object):
return res
class KeyringTestCase(unittest.TestCase):
@defer.inlineCallbacks
def setUp(self):
class KeyringTestCase(unittest.HomeserverTestCase):
def make_homeserver(self, reactor, clock):
self.mock_perspective_server = MockPerspectiveServer()
self.http_client = Mock()
self.hs = yield utils.setup_test_homeserver(
self.addCleanup, handlers=None, http_client=self.http_client
)
hs = self.setup_test_homeserver(handlers=None, http_client=self.http_client)
keys = self.mock_perspective_server.get_verify_keys()
self.hs.config.perspectives = {self.mock_perspective_server.server_name: keys}
def assert_sentinel_context(self):
if LoggingContext.current_context() != LoggingContext.sentinel:
self.fail(
"Expected sentinel context but got %s" % (
LoggingContext.current_context(),
)
)
hs.config.perspectives = {self.mock_perspective_server.server_name: keys}
return hs
def check_context(self, _, expected):
self.assertEquals(
getattr(LoggingContext.current_context(), "request", None), expected
)
@defer.inlineCallbacks
def test_wait_for_previous_lookups(self):
kr = keyring.Keyring(self.hs)
lookup_1_deferred = defer.Deferred()
lookup_2_deferred = defer.Deferred()
with LoggingContext("one") as context_one:
context_one.request = "one"
# we run the lookup in a logcontext so that the patched inlineCallbacks can check
# it is doing the right thing with logcontexts.
wait_1_deferred = run_in_context(
kr.wait_for_previous_lookups, ["server1"], {"server1": lookup_1_deferred}
)
wait_1_deferred = kr.wait_for_previous_lookups(
["server1"], {"server1": lookup_1_deferred}
)
# there were no previous lookups, so the deferred should be ready
self.successResultOf(wait_1_deferred)
# there were no previous lookups, so the deferred should be ready
self.assertTrue(wait_1_deferred.called)
# ... so we should have preserved the LoggingContext.
self.assertIs(LoggingContext.current_context(), context_one)
wait_1_deferred.addBoth(self.check_context, "one")
# set off another wait. It should block because the first lookup
# hasn't yet completed.
wait_2_deferred = run_in_context(
kr.wait_for_previous_lookups, ["server1"], {"server1": lookup_2_deferred}
)
with LoggingContext("two") as context_two:
context_two.request = "two"
self.assertFalse(wait_2_deferred.called)
# set off another wait. It should block because the first lookup
# hasn't yet completed.
wait_2_deferred = kr.wait_for_previous_lookups(
["server1"], {"server1": lookup_2_deferred}
)
self.assertFalse(wait_2_deferred.called)
# let the first lookup complete (in the sentinel context)
lookup_1_deferred.callback(None)
# ... so we should have reset the LoggingContext.
self.assert_sentinel_context()
# now the second wait should complete.
self.successResultOf(wait_2_deferred)
wait_2_deferred.addBoth(self.check_context, "two")
# let the first lookup complete (in the sentinel context)
lookup_1_deferred.callback(None)
# now the second wait should complete and restore our
# loggingcontext.
yield wait_2_deferred
@defer.inlineCallbacks
def test_verify_json_objects_for_server_awaits_previous_requests(self):
clock = Clock(reactor)
key1 = signedjson.key.generate_signing_key(1)
kr = keyring.Keyring(self.hs)
@ -145,81 +120,103 @@ class KeyringTestCase(unittest.TestCase):
self.http_client.post_json.side_effect = get_perspectives
with LoggingContext("11") as context_11:
context_11.request = "11"
# start off a first set of lookups
@defer.inlineCallbacks
def first_lookup():
with LoggingContext("11") as context_11:
context_11.request = "11"
# start off a first set of lookups
res_deferreds = kr.verify_json_objects_for_server(
[("server10", json1), ("server11", {})]
)
res_deferreds = kr.verify_json_objects_for_server(
[("server10", json1), ("server11", {})]
)
# the unsigned json should be rejected pretty quickly
self.assertTrue(res_deferreds[1].called)
try:
yield res_deferreds[1]
self.assertFalse("unsigned json didn't cause a failure")
except SynapseError:
pass
# the unsigned json should be rejected pretty quickly
self.assertTrue(res_deferreds[1].called)
try:
yield res_deferreds[1]
self.assertFalse("unsigned json didn't cause a failure")
except SynapseError:
pass
self.assertFalse(res_deferreds[0].called)
res_deferreds[0].addBoth(self.check_context, None)
self.assertFalse(res_deferreds[0].called)
res_deferreds[0].addBoth(self.check_context, None)
# wait a tick for it to send the request to the perspectives server
# (it first tries the datastore)
yield clock.sleep(1) # XXX find out why this takes so long!
self.http_client.post_json.assert_called_once()
yield logcontext.make_deferred_yieldable(res_deferreds[0])
self.assertIs(LoggingContext.current_context(), context_11)
# let verify_json_objects_for_server finish its work before we kill the
# logcontext
yield self.clock.sleep(0)
context_12 = LoggingContext("12")
context_12.request = "12"
with logcontext.PreserveLoggingContext(context_12):
# a second request for a server with outstanding requests
# should block rather than start a second call
d0 = first_lookup()
# wait a tick for it to send the request to the perspectives server
# (it first tries the datastore)
self.pump()
self.http_client.post_json.assert_called_once()
# a second request for a server with outstanding requests
# should block rather than start a second call
@defer.inlineCallbacks
def second_lookup():
with LoggingContext("12") as context_12:
context_12.request = "12"
self.http_client.post_json.reset_mock()
self.http_client.post_json.return_value = defer.Deferred()
res_deferreds_2 = kr.verify_json_objects_for_server(
[("server10", json1)]
[("server10", json1, )]
)
yield clock.sleep(1)
self.http_client.post_json.assert_not_called()
res_deferreds_2[0].addBoth(self.check_context, None)
yield logcontext.make_deferred_yieldable(res_deferreds_2[0])
# complete the first request
with logcontext.PreserveLoggingContext():
persp_deferred.callback(persp_resp)
self.assertIs(LoggingContext.current_context(), context_11)
# let verify_json_objects_for_server finish its work before we kill the
# logcontext
yield self.clock.sleep(0)
with logcontext.PreserveLoggingContext():
yield res_deferreds[0]
yield res_deferreds_2[0]
d2 = second_lookup()
self.pump()
self.http_client.post_json.assert_not_called()
# complete the first request
persp_deferred.callback(persp_resp)
self.get_success(d0)
self.get_success(d2)
@defer.inlineCallbacks
def test_verify_json_for_server(self):
kr = keyring.Keyring(self.hs)
key1 = signedjson.key.generate_signing_key(1)
yield self.hs.datastore.store_server_verify_key(
r = self.hs.datastore.store_server_verify_key(
"server9", "", time.time() * 1000, signedjson.key.get_verify_key(key1)
)
self.get_success(r)
json1 = {}
signedjson.sign.sign_json(json1, "server9", key1)
with LoggingContext("one") as context_one:
context_one.request = "one"
# should fail immediately on an unsigned object
d = _verify_json_for_server(kr, "server9", {})
self.failureResultOf(d, SynapseError)
defer = kr.verify_json_for_server("server9", {})
try:
yield defer
self.fail("should fail on unsigned json")
except SynapseError:
pass
self.assertIs(LoggingContext.current_context(), context_one)
d = _verify_json_for_server(kr, "server9", json1)
self.assertFalse(d.called)
self.get_success(d)
defer = kr.verify_json_for_server("server9", json1)
self.assertFalse(defer.called)
self.assert_sentinel_context()
yield defer
self.assertIs(LoggingContext.current_context(), context_one)
@defer.inlineCallbacks
def run_in_context(f, *args, **kwargs):
with LoggingContext("testctx"):
rv = yield f(*args, **kwargs)
defer.returnValue(rv)
def _verify_json_for_server(keyring, server_name, json_object):
"""thin wrapper around verify_json_for_server which makes sure it is wrapped
with the patched defer.inlineCallbacks.
"""
@defer.inlineCallbacks
def v():
rv1 = yield keyring.verify_json_for_server(server_name, json_object)
defer.returnValue(rv1)
return run_in_context(v)