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import socket
import time
import pytest
pytest.importorskip('OpenSSL.SSL')
from OpenSSL.SSL import (
TLSv1_2_METHOD,
SESS_CACHE_CLIENT,
OP_NO_TICKET,
Context,
Connection,
_lib,
)
from unit.applications.tls import ApplicationTLS
prerequisites = {'modules': {'openssl': 'any'}}
client = ApplicationTLS()
@pytest.fixture(autouse=True)
def setup_method_fixture():
client.certificate()
assert 'success' in client.conf(
{
"listeners": {
"*:8080": {
"pass": "routes",
"tls": {"certificate": "default", "session": {}},
}
},
"routes": [{"action": {"return": 200}}],
"applications": {},
}
), 'load application configuration'
def add_session(cache_size=None, timeout=None):
session = {}
if cache_size is not None:
session['cache_size'] = cache_size
if timeout is not None:
session['timeout'] = timeout
return client.conf(session, 'listeners/*:8080/tls/session')
def connect(ctx=None, session=None):
sock = socket.create_connection(('127.0.0.1', 8080))
if ctx is None:
ctx = Context(TLSv1_2_METHOD)
ctx.set_session_cache_mode(SESS_CACHE_CLIENT)
ctx.set_options(OP_NO_TICKET)
conn = Connection(ctx, sock)
conn.set_connect_state()
if session is not None:
conn.set_session(session)
conn.do_handshake()
conn.shutdown()
return (
conn,
conn.get_session(),
ctx,
_lib.SSL_session_reused(conn._ssl),
)
@pytest.mark.skipif(
not hasattr(_lib, 'SSL_session_reused'),
reason='session reuse is not supported',
)
def test_tls_session():
_, sess, ctx, reused = connect()
assert not reused, 'new connection'
_, _, _, reused = connect(ctx, sess)
assert not reused, 'no cache'
assert 'success' in add_session(cache_size=2)
_, sess, ctx, reused = connect()
assert not reused, 'new connection cache'
_, _, _, reused = connect(ctx, sess)
assert reused, 'cache'
_, _, _, reused = connect(ctx, sess)
assert reused, 'cache 2'
# check that at least one session of four is not reused
conns = [connect() for _ in range(4)]
assert True not in [c[-1] for c in conns], 'cache small all new'
conns_again = [connect(c[2], c[1]) for c in conns]
assert False in [c[-1] for c in conns_again], 'cache small no reuse'
# all four sessions are reused
assert 'success' in add_session(cache_size=8)
conns = [connect() for _ in range(4)]
assert True not in [c[-1] for c in conns], 'cache big all new'
conns_again = [connect(c[2], c[1]) for c in conns]
assert False not in [c[-1] for c in conns_again], 'cache big reuse'
@pytest.mark.skipif(
not hasattr(_lib, 'SSL_session_reused'),
reason='session reuse is not supported',
)
def test_tls_session_timeout():
assert 'success' in add_session(cache_size=5, timeout=1)
_, sess, ctx, reused = connect()
assert not reused, 'new connection'
_, _, _, reused = connect(ctx, sess)
assert reused, 'no timeout'
time.sleep(3)
_, _, _, reused = connect(ctx, sess)
assert not reused, 'timeout'
def test_tls_session_invalid():
assert 'error' in add_session(cache_size=-1)
assert 'error' in add_session(cache_size={})
assert 'error' in add_session(timeout=-1)
assert 'error' in add_session(timeout={})
|
