293 lines
11 KiB
Python
293 lines
11 KiB
Python
# Copyright 2019 New Vector Ltd
|
|
# Copyright 2019 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.
|
|
|
|
import os
|
|
|
|
import idna
|
|
import yaml
|
|
|
|
from OpenSSL import SSL
|
|
|
|
from synapse.config._base import Config, RootConfig
|
|
from synapse.config.tls import ConfigError, TlsConfig
|
|
from synapse.crypto.context_factory import FederationPolicyForHTTPS
|
|
|
|
from tests.unittest import TestCase
|
|
|
|
|
|
class FakeServer(Config):
|
|
section = "server"
|
|
|
|
def has_tls_listener(self):
|
|
return False
|
|
|
|
|
|
class TestConfig(RootConfig):
|
|
config_classes = [FakeServer, TlsConfig]
|
|
|
|
|
|
class TLSConfigTests(TestCase):
|
|
def test_warn_self_signed(self):
|
|
"""
|
|
Synapse will give a warning when it loads a self-signed certificate.
|
|
"""
|
|
config_dir = self.mktemp()
|
|
os.mkdir(config_dir)
|
|
with open(os.path.join(config_dir, "cert.pem"), "w") as f:
|
|
f.write(
|
|
"""-----BEGIN CERTIFICATE-----
|
|
MIID6DCCAtACAws9CjANBgkqhkiG9w0BAQUFADCBtzELMAkGA1UEBhMCVFIxDzAN
|
|
BgNVBAgMBsOHb3J1bTEUMBIGA1UEBwwLQmHFn21ha8OnxLExEjAQBgNVBAMMCWxv
|
|
Y2FsaG9zdDEcMBoGA1UECgwTVHdpc3RlZCBNYXRyaXggTGFiczEkMCIGA1UECwwb
|
|
QXV0b21hdGVkIFRlc3RpbmcgQXV0aG9yaXR5MSkwJwYJKoZIhvcNAQkBFhpzZWN1
|
|
cml0eUB0d2lzdGVkbWF0cml4LmNvbTAgFw0xNzA3MTIxNDAxNTNaGA8yMTE3MDYx
|
|
ODE0MDE1M1owgbcxCzAJBgNVBAYTAlRSMQ8wDQYDVQQIDAbDh29ydW0xFDASBgNV
|
|
BAcMC0JhxZ9tYWvDp8SxMRIwEAYDVQQDDAlsb2NhbGhvc3QxHDAaBgNVBAoME1R3
|
|
aXN0ZWQgTWF0cml4IExhYnMxJDAiBgNVBAsMG0F1dG9tYXRlZCBUZXN0aW5nIEF1
|
|
dGhvcml0eTEpMCcGCSqGSIb3DQEJARYac2VjdXJpdHlAdHdpc3RlZG1hdHJpeC5j
|
|
b20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDwT6kbqtMUI0sMkx4h
|
|
I+L780dA59KfksZCqJGmOsMD6hte9EguasfkZzvCF3dk3NhwCjFSOvKx6rCwiteo
|
|
WtYkVfo+rSuVNmt7bEsOUDtuTcaxTzIFB+yHOYwAaoz3zQkyVW0c4pzioiLCGCmf
|
|
FLdiDBQGGp74tb+7a0V6kC3vMLFoM3L6QWq5uYRB5+xLzlPJ734ltyvfZHL3Us6p
|
|
cUbK+3WTWvb4ER0W2RqArAj6Bc/ERQKIAPFEiZi9bIYTwvBH27OKHRz+KoY/G8zY
|
|
+l+WZoJqDhupRAQAuh7O7V/y6bSP+KNxJRie9QkZvw1PSaGSXtGJI3WWdO12/Ulg
|
|
epJpAgMBAAEwDQYJKoZIhvcNAQEFBQADggEBAJXEq5P9xwvP9aDkXIqzcD0L8sf8
|
|
ewlhlxTQdeqt2Nace0Yk18lIo2oj1t86Y8jNbpAnZJeI813Rr5M7FbHCXoRc/SZG
|
|
I8OtG1xGwcok53lyDuuUUDexnK4O5BkjKiVlNPg4HPim5Kuj2hRNFfNt/F2BVIlj
|
|
iZupikC5MT1LQaRwidkSNxCku1TfAyueiBwhLnFwTmIGNnhuDCutEVAD9kFmcJN2
|
|
SznugAcPk4doX2+rL+ila+ThqgPzIkwTUHtnmjI0TI6xsDUlXz5S3UyudrE2Qsfz
|
|
s4niecZKPBizL6aucT59CsunNmmb5Glq8rlAcU+1ZTZZzGYqVYhF6axB9Qg=
|
|
-----END CERTIFICATE-----"""
|
|
)
|
|
|
|
config = {
|
|
"tls_certificate_path": os.path.join(config_dir, "cert.pem"),
|
|
"tls_fingerprints": [],
|
|
}
|
|
|
|
t = TestConfig()
|
|
t.read_config(config, config_dir_path="", data_dir_path="")
|
|
t.read_certificate_from_disk(require_cert_and_key=False)
|
|
|
|
warnings = self.flushWarnings()
|
|
self.assertEqual(len(warnings), 1)
|
|
self.assertEqual(
|
|
warnings[0]["message"],
|
|
(
|
|
"Self-signed TLS certificates will not be accepted by "
|
|
"Synapse 1.0. Please either provide a valid certificate, "
|
|
"or use Synapse's ACME support to provision one."
|
|
),
|
|
)
|
|
|
|
def test_tls_client_minimum_default(self):
|
|
"""
|
|
The default client TLS version is 1.0.
|
|
"""
|
|
config = {}
|
|
t = TestConfig()
|
|
t.read_config(config, config_dir_path="", data_dir_path="")
|
|
|
|
self.assertEqual(t.federation_client_minimum_tls_version, "1")
|
|
|
|
def test_tls_client_minimum_set(self):
|
|
"""
|
|
The default client TLS version can be set to 1.0, 1.1, and 1.2.
|
|
"""
|
|
config = {"federation_client_minimum_tls_version": 1}
|
|
t = TestConfig()
|
|
t.read_config(config, config_dir_path="", data_dir_path="")
|
|
self.assertEqual(t.federation_client_minimum_tls_version, "1")
|
|
|
|
config = {"federation_client_minimum_tls_version": 1.1}
|
|
t = TestConfig()
|
|
t.read_config(config, config_dir_path="", data_dir_path="")
|
|
self.assertEqual(t.federation_client_minimum_tls_version, "1.1")
|
|
|
|
config = {"federation_client_minimum_tls_version": 1.2}
|
|
t = TestConfig()
|
|
t.read_config(config, config_dir_path="", data_dir_path="")
|
|
self.assertEqual(t.federation_client_minimum_tls_version, "1.2")
|
|
|
|
# Also test a string version
|
|
config = {"federation_client_minimum_tls_version": "1"}
|
|
t = TestConfig()
|
|
t.read_config(config, config_dir_path="", data_dir_path="")
|
|
self.assertEqual(t.federation_client_minimum_tls_version, "1")
|
|
|
|
config = {"federation_client_minimum_tls_version": "1.2"}
|
|
t = TestConfig()
|
|
t.read_config(config, config_dir_path="", data_dir_path="")
|
|
self.assertEqual(t.federation_client_minimum_tls_version, "1.2")
|
|
|
|
def test_tls_client_minimum_1_point_3_missing(self):
|
|
"""
|
|
If TLS 1.3 support is missing and it's configured, it will raise a
|
|
ConfigError.
|
|
"""
|
|
# thanks i hate it
|
|
if hasattr(SSL, "OP_NO_TLSv1_3"):
|
|
OP_NO_TLSv1_3 = SSL.OP_NO_TLSv1_3
|
|
delattr(SSL, "OP_NO_TLSv1_3")
|
|
self.addCleanup(setattr, SSL, "SSL.OP_NO_TLSv1_3", OP_NO_TLSv1_3)
|
|
assert not hasattr(SSL, "OP_NO_TLSv1_3")
|
|
|
|
config = {"federation_client_minimum_tls_version": 1.3}
|
|
t = TestConfig()
|
|
with self.assertRaises(ConfigError) as e:
|
|
t.read_config(config, config_dir_path="", data_dir_path="")
|
|
self.assertEqual(
|
|
e.exception.args[0],
|
|
(
|
|
"federation_client_minimum_tls_version cannot be 1.3, "
|
|
"your OpenSSL does not support it"
|
|
),
|
|
)
|
|
|
|
def test_tls_client_minimum_1_point_3_exists(self):
|
|
"""
|
|
If TLS 1.3 support exists and it's configured, it will be settable.
|
|
"""
|
|
# thanks i hate it, still
|
|
if not hasattr(SSL, "OP_NO_TLSv1_3"):
|
|
SSL.OP_NO_TLSv1_3 = 0x00
|
|
self.addCleanup(lambda: delattr(SSL, "OP_NO_TLSv1_3"))
|
|
assert hasattr(SSL, "OP_NO_TLSv1_3")
|
|
|
|
config = {"federation_client_minimum_tls_version": 1.3}
|
|
t = TestConfig()
|
|
t.read_config(config, config_dir_path="", data_dir_path="")
|
|
self.assertEqual(t.federation_client_minimum_tls_version, "1.3")
|
|
|
|
def test_tls_client_minimum_set_passed_through_1_2(self):
|
|
"""
|
|
The configured TLS version is correctly configured by the ContextFactory.
|
|
"""
|
|
config = {"federation_client_minimum_tls_version": 1.2}
|
|
t = TestConfig()
|
|
t.read_config(config, config_dir_path="", data_dir_path="")
|
|
|
|
cf = FederationPolicyForHTTPS(t)
|
|
options = _get_ssl_context_options(cf._verify_ssl_context)
|
|
|
|
# The context has had NO_TLSv1_1 and NO_TLSv1_0 set, but not NO_TLSv1_2
|
|
self.assertNotEqual(options & SSL.OP_NO_TLSv1, 0)
|
|
self.assertNotEqual(options & SSL.OP_NO_TLSv1_1, 0)
|
|
self.assertEqual(options & SSL.OP_NO_TLSv1_2, 0)
|
|
|
|
def test_tls_client_minimum_set_passed_through_1_0(self):
|
|
"""
|
|
The configured TLS version is correctly configured by the ContextFactory.
|
|
"""
|
|
config = {"federation_client_minimum_tls_version": 1}
|
|
t = TestConfig()
|
|
t.read_config(config, config_dir_path="", data_dir_path="")
|
|
|
|
cf = FederationPolicyForHTTPS(t)
|
|
options = _get_ssl_context_options(cf._verify_ssl_context)
|
|
|
|
# The context has not had any of the NO_TLS set.
|
|
self.assertEqual(options & SSL.OP_NO_TLSv1, 0)
|
|
self.assertEqual(options & SSL.OP_NO_TLSv1_1, 0)
|
|
self.assertEqual(options & SSL.OP_NO_TLSv1_2, 0)
|
|
|
|
def test_acme_disabled_in_generated_config_no_acme_domain_provied(self):
|
|
"""
|
|
Checks acme is disabled by default.
|
|
"""
|
|
conf = TestConfig()
|
|
conf.read_config(
|
|
yaml.safe_load(
|
|
TestConfig().generate_config(
|
|
"/config_dir_path",
|
|
"my_super_secure_server",
|
|
"/data_dir_path",
|
|
tls_certificate_path="/tls_cert_path",
|
|
tls_private_key_path="tls_private_key",
|
|
acme_domain=None, # This is the acme_domain
|
|
)
|
|
),
|
|
"/config_dir_path",
|
|
)
|
|
|
|
self.assertFalse(conf.acme_enabled)
|
|
|
|
def test_acme_enabled_in_generated_config_domain_provided(self):
|
|
"""
|
|
Checks acme is enabled if the acme_domain arg is set to some string.
|
|
"""
|
|
conf = TestConfig()
|
|
conf.read_config(
|
|
yaml.safe_load(
|
|
TestConfig().generate_config(
|
|
"/config_dir_path",
|
|
"my_super_secure_server",
|
|
"/data_dir_path",
|
|
tls_certificate_path="/tls_cert_path",
|
|
tls_private_key_path="tls_private_key",
|
|
acme_domain="my_supe_secure_server", # This is the acme_domain
|
|
)
|
|
),
|
|
"/config_dir_path",
|
|
)
|
|
|
|
self.assertTrue(conf.acme_enabled)
|
|
|
|
def test_whitelist_idna_failure(self):
|
|
"""
|
|
The federation certificate whitelist will not allow IDNA domain names.
|
|
"""
|
|
config = {
|
|
"federation_certificate_verification_whitelist": [
|
|
"example.com",
|
|
"*.ドメイン.テスト",
|
|
]
|
|
}
|
|
t = TestConfig()
|
|
e = self.assertRaises(
|
|
ConfigError, t.read_config, config, config_dir_path="", data_dir_path=""
|
|
)
|
|
self.assertIn("IDNA domain names", str(e))
|
|
|
|
def test_whitelist_idna_result(self):
|
|
"""
|
|
The federation certificate whitelist will match on IDNA encoded names.
|
|
"""
|
|
config = {
|
|
"federation_certificate_verification_whitelist": [
|
|
"example.com",
|
|
"*.xn--eckwd4c7c.xn--zckzah",
|
|
]
|
|
}
|
|
t = TestConfig()
|
|
t.read_config(config, config_dir_path="", data_dir_path="")
|
|
|
|
cf = FederationPolicyForHTTPS(t)
|
|
|
|
# Not in the whitelist
|
|
opts = cf.get_options(b"notexample.com")
|
|
self.assertTrue(opts._verifier._verify_certs)
|
|
|
|
# Caught by the wildcard
|
|
opts = cf.get_options(idna.encode("テスト.ドメイン.テスト"))
|
|
self.assertFalse(opts._verifier._verify_certs)
|
|
|
|
|
|
def _get_ssl_context_options(ssl_context: SSL.Context) -> int:
|
|
"""get the options bits from an openssl context object"""
|
|
# the OpenSSL.SSL.Context wrapper doesn't expose get_options, so we have to
|
|
# use the low-level interface
|
|
return SSL._lib.SSL_CTX_get_options(ssl_context._context)
|