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import re
from datetime import timedelta
import pytest
from .env import TlsTestEnv
from .conf import TlsTestConf
class TestCiphers:
@pytest.fixture(autouse=True, scope='class')
def _class_scope(self, env):
conf = TlsTestConf(env=env, extras={
'base': "TLSHonorClientOrder off",
})
conf.add_tls_vhosts(domains=[env.domain_a, env.domain_b])
conf.install()
assert env.apache_restart() == 0
@pytest.fixture(autouse=True, scope='function')
def _function_scope(self, env):
pass
def _get_protocol_cipher(self, output: str):
protocol = None
cipher = None
for line in output.splitlines():
m = re.match(r'^\s+Protocol\s*:\s*(\S+)$', line)
if m:
protocol = m.group(1)
continue
m = re.match(r'^\s+Cipher\s*:\s*(\S+)$', line)
if m:
cipher = m.group(1)
return protocol, cipher
def test_tls_06_ciphers_ecdsa(self, env):
ecdsa_1_2 = [c for c in env.RUSTLS_CIPHERS
if c.max_version == 1.2 and c.flavour == 'ECDSA'][0]
# client speaks only this cipher, see that it gets it
r = env.openssl_client(env.domain_b, extra_args=[
"-cipher", ecdsa_1_2.openssl_name, "-tls1_2"
])
protocol, cipher = self._get_protocol_cipher(r.stdout)
assert protocol == "TLSv1.2", r.stdout
assert cipher == ecdsa_1_2.openssl_name, r.stdout
def test_tls_06_ciphers_rsa(self, env):
rsa_1_2 = [c for c in env.RUSTLS_CIPHERS
if c.max_version == 1.2 and c.flavour == 'RSA'][0]
# client speaks only this cipher, see that it gets it
r = env.openssl_client(env.domain_b, extra_args=[
"-cipher", rsa_1_2.openssl_name, "-tls1_2"
])
protocol, cipher = self._get_protocol_cipher(r.stdout)
assert protocol == "TLSv1.2", r.stdout
assert cipher == rsa_1_2.openssl_name, r.stdout
@pytest.mark.parametrize("cipher", [
c for c in TlsTestEnv.RUSTLS_CIPHERS if c.max_version == 1.2 and c.flavour == 'ECDSA'
], ids=[
c.name for c in TlsTestEnv.RUSTLS_CIPHERS if c.max_version == 1.2 and c.flavour == 'ECDSA'
])
def test_tls_06_ciphers_server_prefer_ecdsa(self, env, cipher):
# Select a ECSDA ciphers as preference and suppress all RSA ciphers.
# The last is not strictly necessary since rustls prefers ECSDA anyway
suppress_names = [c.name for c in env.RUSTLS_CIPHERS
if c.max_version == 1.2 and c.flavour == 'RSA']
conf = TlsTestConf(env=env, extras={
env.domain_b: [
"TLSHonorClientOrder off",
f"TLSCiphersPrefer {cipher.name}",
f"TLSCiphersSuppress {':'.join(suppress_names)}",
]
})
conf.add_tls_vhosts(domains=[env.domain_a, env.domain_b])
conf.install()
assert env.apache_restart() == 0
r = env.openssl_client(env.domain_b, extra_args=["-tls1_2"])
client_proto, client_cipher = self._get_protocol_cipher(r.stdout)
assert client_proto == "TLSv1.2", r.stdout
assert client_cipher == cipher.openssl_name, r.stdout
@pytest.mark.skip(reason="Wrong certified key selected by rustls")
# see <https://github.com/rustls/rustls-ffi/issues/236>
@pytest.mark.parametrize("cipher", [
c for c in TlsTestEnv.RUSTLS_CIPHERS if c.max_version == 1.2 and c.flavour == 'RSA'
], ids=[
c.name for c in TlsTestEnv.RUSTLS_CIPHERS if c.max_version == 1.2 and c.flavour == 'RSA'
])
def test_tls_06_ciphers_server_prefer_rsa(self, env, cipher):
# Select a RSA ciphers as preference and suppress all ECDSA ciphers.
# The last is necessary since rustls prefers ECSDA and openssl leaks that it can.
suppress_names = [c.name for c in env.RUSTLS_CIPHERS
if c.max_version == 1.2 and c.flavour == 'ECDSA']
conf = TlsTestConf(env=env, extras={
env.domain_b: [
"TLSHonorClientOrder off",
f"TLSCiphersPrefer {cipher.name}",
f"TLSCiphersSuppress {':'.join(suppress_names)}",
]
})
conf.add_tls_vhosts(domains=[env.domain_a, env.domain_b])
conf.install()
assert env.apache_restart() == 0
r = env.openssl_client(env.domain_b, extra_args=["-tls1_2"])
client_proto, client_cipher = self._get_protocol_cipher(r.stdout)
assert client_proto == "TLSv1.2", r.stdout
assert client_cipher == cipher.openssl_name, r.stdout
@pytest.mark.skip(reason="Wrong certified key selected by rustls")
# see <https://github.com/rustls/rustls-ffi/issues/236>
@pytest.mark.parametrize("cipher", [
c for c in TlsTestEnv.RUSTLS_CIPHERS if c.max_version == 1.2 and c.flavour == 'RSA'
], ids=[
c.openssl_name for c in TlsTestEnv.RUSTLS_CIPHERS if c.max_version == 1.2 and c.flavour == 'RSA'
])
def test_tls_06_ciphers_server_prefer_rsa_alias(self, env, cipher):
# same as above, but using openssl names for ciphers
suppress_names = [c.openssl_name for c in env.RUSTLS_CIPHERS
if c.max_version == 1.2 and c.flavour == 'ECDSA']
conf = TlsTestConf(env=env, extras={
env.domain_b: [
"TLSHonorClientOrder off",
f"TLSCiphersPrefer {cipher.openssl_name}",
f"TLSCiphersSuppress {':'.join(suppress_names)}",
]
})
conf.add_tls_vhosts(domains=[env.domain_a, env.domain_b])
conf.install()
assert env.apache_restart() == 0
r = env.openssl_client(env.domain_b, extra_args=["-tls1_2"])
client_proto, client_cipher = self._get_protocol_cipher(r.stdout)
assert client_proto == "TLSv1.2", r.stdout
assert client_cipher == cipher.openssl_name, r.stdout
@pytest.mark.skip(reason="Wrong certified key selected by rustls")
# see <https://github.com/rustls/rustls-ffi/issues/236>
@pytest.mark.parametrize("cipher", [
c for c in TlsTestEnv.RUSTLS_CIPHERS if c.max_version == 1.2 and c.flavour == 'RSA'
], ids=[
c.id_name for c in TlsTestEnv.RUSTLS_CIPHERS if c.max_version == 1.2 and c.flavour == 'RSA'
])
def test_tls_06_ciphers_server_prefer_rsa_id(self, env, cipher):
# same as above, but using openssl names for ciphers
suppress_names = [c.id_name for c in env.RUSTLS_CIPHERS
if c.max_version == 1.2 and c.flavour == 'ECDSA']
conf = TlsTestConf(env=env, extras={
env.domain_b: [
"TLSHonorClientOrder off",
f"TLSCiphersPrefer {cipher.id_name}",
f"TLSCiphersSuppress {':'.join(suppress_names)}",
]
})
conf.add_tls_vhosts(domains=[env.domain_a, env.domain_b])
conf.install()
assert env.apache_restart() == 0
r = env.openssl_client(env.domain_b, extra_args=["-tls1_2"])
client_proto, client_cipher = self._get_protocol_cipher(r.stdout)
assert client_proto == "TLSv1.2", r.stdout
assert client_cipher == cipher.openssl_name, r.stdout
def test_tls_06_ciphers_pref_unknown(self, env):
conf = TlsTestConf(env=env, extras={
env.domain_b: "TLSCiphersPrefer TLS_MY_SUPER_CIPHER:SSL_WHAT_NOT"
})
conf.add_tls_vhosts(domains=[env.domain_a, env.domain_b])
conf.install()
assert env.apache_restart() != 0
# get a working config again, so that subsequent test cases do not stumble
conf = TlsTestConf(env=env)
conf.add_tls_vhosts(domains=[env.domain_a, env.domain_b])
conf.install()
env.apache_restart()
def test_tls_06_ciphers_pref_unsupported(self, env):
# a warning on preferring a known, but not supported cipher
env.httpd_error_log.ignore_recent()
conf = TlsTestConf(env=env, extras={
env.domain_b: "TLSCiphersPrefer TLS_NULL_WITH_NULL_NULL"
})
conf.add_tls_vhosts(domains=[env.domain_a, env.domain_b])
conf.install()
assert env.apache_restart() == 0
(errors, warnings) = env.httpd_error_log.get_recent_count()
assert errors == 0
assert warnings == 2 # once on dry run, once on start
def test_tls_06_ciphers_supp_unknown(self, env):
conf = TlsTestConf(env=env, extras={
env.domain_b: "TLSCiphersSuppress TLS_MY_SUPER_CIPHER:SSL_WHAT_NOT"
})
conf.add_tls_vhosts(domains=[env.domain_a, env.domain_b])
conf.install()
assert env.apache_restart() != 0
def test_tls_06_ciphers_supp_unsupported(self, env):
# no warnings on suppressing known, but not supported ciphers
env.httpd_error_log.ignore_recent()
conf = TlsTestConf(env=env, extras={
env.domain_b: "TLSCiphersSuppress TLS_NULL_WITH_NULL_NULL"
})
conf.add_tls_vhosts(domains=[env.domain_a, env.domain_b])
conf.install()
assert env.apache_restart() == 0
(errors, warnings) = env.httpd_error_log.get_recent_count()
assert errors == 0
assert warnings == 0
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