# Copyright 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.
import os.path
import shutil
import tempfile
from contextlib import redirect_stdout
from io import StringIO
import yaml
from synapse.config import ConfigError
from synapse.config.homeserver import HomeServerConfig
from tests import unittest
class ConfigLoadingTestCase(unittest.TestCase):
def setUp(self):
self.dir = tempfile.mkdtemp()
self.file = os.path.join(self.dir, "homeserver.yaml")
def tearDown(self):
shutil.rmtree(self.dir)
def test_load_fails_if_server_name_missing(self):
self.generate_config_and_remove_lines_containing("server_name")
with self.assertRaises(ConfigError):
HomeServerConfig.load_config("", ["-c", self.file])
with self.assertRaises(ConfigError):
HomeServerConfig.load_or_generate_config("", ["-c", self.file])
def test_generates_and_loads_macaroon_secret_key(self):
self.generate_config()
with open(self.file, "r") as f:
raw = yaml.safe_load(f)
self.assertIn("macaroon_secret_key", raw)
config = HomeServerConfig.load_config("", ["-c", self.file])
self.assertTrue(
hasattr(config, "macaroon_secret_key"),
"Want config to have attr macaroon_secret_key",
)
if len(config.macaroon_secret_key) < 5:
self.fail(
"Want macaroon secret key to be string of at least length 5,"
"was: %r" % (config.macaroon_secret_key,)
)
config = HomeServerConfig.load_or_generate_config("", ["-c", self.file])
self.assertTrue(
hasattr(config, "macaroon_secret_key"),
"Want config to have attr macaroon_secret_key",
)
if len(config.macaroon_secret_key) < 5:
self.fail(
"Want macaroon secret key to be string of at least length 5,"
"was: %r" % (config.macaroon_secret_key,)
)
def test_load_succeeds_if_macaroon_secret_key_missing(self):
self.generate_config_and_remove_lines_containing("macaroon")
config1 = HomeServerConfig.load_config("", ["-c", self.file])
config2 = HomeServerConfig.load_config("", ["-c", self.file])
config3 = HomeServerConfig.load_or_generate_config("", ["-c", self.file])
self.assertEqual(config1.macaroon_secret_key, config2.macaroon_secret_key)
self.assertEqual(config1.macaroon_secret_key, config3.macaroon_secret_key)
def test_disable_registration(self):
self.generate_config()
self.add_lines_to_config(
["enable_registration: true", "disable_registration: true"]
)
# Check that disable_registration clobbers enable_registration.
config = HomeServerConfig.load_config("", ["-c", self.file])
self.assertFalse(config.enable_registration)
config = HomeServerConfig.load_or_generate_config("", ["-c", self.file])
self.assertFalse(config.enable_registration)
# Check that either config value is clobbered by the command line.
config = HomeServerConfig.load_or_generate_config(
"", ["-c", self.file, "--enable-registration"]
)
self.assertTrue(config.enable_registration)
def test_stats_enabled(self):
self.generate_config_and_remove_lines_containing("enable_metrics")
self.add_lines_to_config(["enable_metrics: true"])
# The default Metrics Flags are off by default.
config = HomeServerConfig.load_config("", ["-c", self.file])
self.assertFalse(config.metrics_flags.known_servers)
def generate_config(self):
with redirect_stdout(StringIO()):
HomeServerConfig.load_or_generate_config(
"",
[
"--generate-config",
"-c",
self.file,
"--report-stats=yes",
"-H",
"lemurs.win",
],
)
def generate_config_and_remove_lines_containing(self, needle):
self.generate_config()
with open(self.file, "r") as f:
contents = f.readlines()
contents = [line for line in contents if needle not in line]
with open(self.file, "w") as f:
f.write("".join(contents))
def add_lines_to_config(self, lines):
with open(self.file, "a") as f:
for line in lines:
f.write(line + "\n")