mirror of
https://git.anonymousland.org/anonymousland/synapse.git
synced 2024-10-01 11:49:51 -04:00
139 lines
3.8 KiB
Python
139 lines
3.8 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2014-2016 OpenMarket Ltd
|
|
#
|
|
# 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 . import unittest
|
|
from twisted.internet import defer
|
|
from twisted.names import dns, error
|
|
|
|
from mock import Mock
|
|
|
|
from synapse.http.endpoint import resolve_service
|
|
|
|
from tests.utils import MockClock
|
|
|
|
|
|
@unittest.DEBUG
|
|
class DnsTestCase(unittest.TestCase):
|
|
|
|
@defer.inlineCallbacks
|
|
def test_resolve(self):
|
|
dns_client_mock = Mock()
|
|
|
|
service_name = "test_service.example.com"
|
|
host_name = "example.com"
|
|
|
|
answer_srv = dns.RRHeader(
|
|
type=dns.SRV,
|
|
payload=dns.Record_SRV(
|
|
target=host_name,
|
|
)
|
|
)
|
|
|
|
dns_client_mock.lookupService.return_value = defer.succeed(
|
|
([answer_srv], None, None),
|
|
)
|
|
|
|
cache = {}
|
|
|
|
servers = yield resolve_service(
|
|
service_name, dns_client=dns_client_mock, cache=cache
|
|
)
|
|
|
|
dns_client_mock.lookupService.assert_called_once_with(service_name)
|
|
|
|
self.assertEquals(len(servers), 1)
|
|
self.assertEquals(servers, cache[service_name])
|
|
self.assertEquals(servers[0].host, host_name)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_from_cache_expired_and_dns_fail(self):
|
|
dns_client_mock = Mock()
|
|
dns_client_mock.lookupService.return_value = defer.fail(error.DNSServerError())
|
|
|
|
service_name = "test_service.example.com"
|
|
|
|
entry = Mock(spec_set=["expires"])
|
|
entry.expires = 0
|
|
|
|
cache = {
|
|
service_name: [entry]
|
|
}
|
|
|
|
servers = yield resolve_service(
|
|
service_name, dns_client=dns_client_mock, cache=cache
|
|
)
|
|
|
|
dns_client_mock.lookupService.assert_called_once_with(service_name)
|
|
|
|
self.assertEquals(len(servers), 1)
|
|
self.assertEquals(servers, cache[service_name])
|
|
|
|
@defer.inlineCallbacks
|
|
def test_from_cache(self):
|
|
clock = MockClock()
|
|
|
|
dns_client_mock = Mock(spec_set=['lookupService'])
|
|
dns_client_mock.lookupService = Mock(spec_set=[])
|
|
|
|
service_name = "test_service.example.com"
|
|
|
|
entry = Mock(spec_set=["expires"])
|
|
entry.expires = 999999999
|
|
|
|
cache = {
|
|
service_name: [entry]
|
|
}
|
|
|
|
servers = yield resolve_service(
|
|
service_name, dns_client=dns_client_mock, cache=cache, clock=clock,
|
|
)
|
|
|
|
self.assertFalse(dns_client_mock.lookupService.called)
|
|
|
|
self.assertEquals(len(servers), 1)
|
|
self.assertEquals(servers, cache[service_name])
|
|
|
|
@defer.inlineCallbacks
|
|
def test_empty_cache(self):
|
|
dns_client_mock = Mock()
|
|
|
|
dns_client_mock.lookupService.return_value = defer.fail(error.DNSServerError())
|
|
|
|
service_name = "test_service.example.com"
|
|
|
|
cache = {}
|
|
|
|
with self.assertRaises(error.DNSServerError):
|
|
yield resolve_service(
|
|
service_name, dns_client=dns_client_mock, cache=cache
|
|
)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_name_error(self):
|
|
dns_client_mock = Mock()
|
|
|
|
dns_client_mock.lookupService.return_value = defer.fail(error.DNSNameError())
|
|
|
|
service_name = "test_service.example.com"
|
|
|
|
cache = {}
|
|
|
|
servers = yield resolve_service(
|
|
service_name, dns_client=dns_client_mock, cache=cache
|
|
)
|
|
|
|
self.assertEquals(len(servers), 0)
|
|
self.assertEquals(len(cache), 0)
|