99 lines
3.4 KiB
Python
99 lines
3.4 KiB
Python
# Copyright 2019 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 typing import Optional
|
|
|
|
from synapse.config.homeserver import HomeServerConfig
|
|
from synapse.util.ratelimitutils import FederationRateLimiter
|
|
|
|
from tests.server import get_clock
|
|
from tests.unittest import TestCase
|
|
from tests.utils import default_config
|
|
|
|
|
|
class FederationRateLimiterTestCase(TestCase):
|
|
def test_ratelimit(self):
|
|
"""A simple test with the default values"""
|
|
reactor, clock = get_clock()
|
|
rc_config = build_rc_config()
|
|
ratelimiter = FederationRateLimiter(clock, rc_config)
|
|
|
|
with ratelimiter.ratelimit("testhost") as d1:
|
|
# shouldn't block
|
|
self.successResultOf(d1)
|
|
|
|
def test_concurrent_limit(self):
|
|
"""Test what happens when we hit the concurrent limit"""
|
|
reactor, clock = get_clock()
|
|
rc_config = build_rc_config({"rc_federation": {"concurrent": 2}})
|
|
ratelimiter = FederationRateLimiter(clock, rc_config)
|
|
|
|
with ratelimiter.ratelimit("testhost") as d1:
|
|
# shouldn't block
|
|
self.successResultOf(d1)
|
|
|
|
cm2 = ratelimiter.ratelimit("testhost")
|
|
d2 = cm2.__enter__()
|
|
# also shouldn't block
|
|
self.successResultOf(d2)
|
|
|
|
cm3 = ratelimiter.ratelimit("testhost")
|
|
d3 = cm3.__enter__()
|
|
# this one should block, though ...
|
|
self.assertNoResult(d3)
|
|
|
|
# ... until we complete an earlier request
|
|
cm2.__exit__(None, None, None)
|
|
self.successResultOf(d3)
|
|
|
|
def test_sleep_limit(self):
|
|
"""Test what happens when we hit the sleep limit"""
|
|
reactor, clock = get_clock()
|
|
rc_config = build_rc_config(
|
|
{"rc_federation": {"sleep_limit": 2, "sleep_delay": 500}}
|
|
)
|
|
ratelimiter = FederationRateLimiter(clock, rc_config)
|
|
|
|
with ratelimiter.ratelimit("testhost") as d1:
|
|
# shouldn't block
|
|
self.successResultOf(d1)
|
|
|
|
with ratelimiter.ratelimit("testhost") as d2:
|
|
# nor this
|
|
self.successResultOf(d2)
|
|
|
|
with ratelimiter.ratelimit("testhost") as d3:
|
|
# this one should block, though ...
|
|
self.assertNoResult(d3)
|
|
sleep_time = _await_resolution(reactor, d3)
|
|
self.assertAlmostEqual(sleep_time, 500, places=3)
|
|
|
|
|
|
def _await_resolution(reactor, d):
|
|
"""advance the clock until the deferred completes.
|
|
|
|
Returns the number of milliseconds it took to complete.
|
|
"""
|
|
start_time = reactor.seconds()
|
|
while not d.called:
|
|
reactor.advance(0.01)
|
|
return (reactor.seconds() - start_time) * 1000
|
|
|
|
|
|
def build_rc_config(settings: Optional[dict] = None):
|
|
config_dict = default_config("test")
|
|
config_dict.update(settings or {})
|
|
config = HomeServerConfig()
|
|
config.parse_config_dict(config_dict, "", "")
|
|
return config.ratelimiting.rc_federation
|