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[3.7] gh-94208: Add more TLS version/protocol checks for FreeBSD (GH-94347) #95314

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Jul 27, 2022
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54 changes: 31 additions & 23 deletions Lib/test/test_ssl.py
Original file line number Diff line number Diff line change
Expand Up @@ -1131,8 +1131,12 @@ class ContextTests(unittest.TestCase):
@skip_if_broken_ubuntu_ssl
def test_constructor(self):
for protocol in PROTOCOLS:
ssl.SSLContext(protocol)
ctx = ssl.SSLContext()
if has_tls_protocol(protocol):
with support.check_warnings():
ctx = ssl.SSLContext(protocol)
self.assertEqual(ctx.protocol, protocol)
with support.check_warnings():
ctx = ssl.SSLContext()
self.assertEqual(ctx.protocol, ssl.PROTOCOL_TLS)
self.assertRaises(ValueError, ssl.SSLContext, -1)
self.assertRaises(ValueError, ssl.SSLContext, 42)
Expand Down Expand Up @@ -1284,7 +1288,7 @@ def test_min_max_version(self):
ctx.maximum_version = ssl.TLSVersion.MINIMUM_SUPPORTED
self.assertIn(
ctx.maximum_version,
{ssl.TLSVersion.TLSv1, ssl.TLSVersion.SSLv3}
{ssl.TLSVersion.TLSv1, ssl.TLSVersion.TLSv1_1, ssl.TLSVersion.SSLv3}
)

ctx.minimum_version = ssl.TLSVersion.MAXIMUM_SUPPORTED
Expand All @@ -1296,19 +1300,19 @@ def test_min_max_version(self):
with self.assertRaises(ValueError):
ctx.minimum_version = 42

ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1_1)

self.assertIn(
ctx.minimum_version, minimum_range
)
self.assertEqual(
ctx.maximum_version, ssl.TLSVersion.MAXIMUM_SUPPORTED
)
with self.assertRaises(ValueError):
ctx.minimum_version = ssl.TLSVersion.MINIMUM_SUPPORTED
with self.assertRaises(ValueError):
ctx.maximum_version = ssl.TLSVersion.TLSv1
if has_tls_protocol(ssl.PROTOCOL_TLSv1_1):
ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1_1)

self.assertIn(
ctx.minimum_version, minimum_range
)
self.assertEqual(
ctx.maximum_version, ssl.TLSVersion.MAXIMUM_SUPPORTED
)
with self.assertRaises(ValueError):
ctx.minimum_version = ssl.TLSVersion.MINIMUM_SUPPORTED
with self.assertRaises(ValueError):
ctx.maximum_version = ssl.TLSVersion.TLSv1

@unittest.skipUnless(have_verify_flags(),
"verify_flags need OpenSSL > 0.9.8")
Expand Down Expand Up @@ -1690,10 +1694,12 @@ def test__create_stdlib_context(self):
self.assertFalse(ctx.check_hostname)
self._assert_context_options(ctx)

ctx = ssl._create_stdlib_context(ssl.PROTOCOL_TLSv1)
self.assertEqual(ctx.protocol, ssl.PROTOCOL_TLSv1)
self.assertEqual(ctx.verify_mode, ssl.CERT_NONE)
self._assert_context_options(ctx)
if has_tls_protocol(ssl.PROTOCOL_TLSv1):
with support.check_warnings():
ctx = ssl._create_stdlib_context(ssl.PROTOCOL_TLSv1)
self.assertEqual(ctx.protocol, ssl.PROTOCOL_TLSv1)
self.assertEqual(ctx.verify_mode, ssl.CERT_NONE)
self._assert_context_options(ctx)

ctx = ssl._create_stdlib_context(ssl.PROTOCOL_TLSv1,
cert_reqs=ssl.CERT_REQUIRED,
Expand Down Expand Up @@ -3363,10 +3369,12 @@ def test_protocol_tlsv1_2(self):
client_options=ssl.OP_NO_TLSv1_2)

try_protocol_combo(ssl.PROTOCOL_TLS, ssl.PROTOCOL_TLSv1_2, 'TLSv1.2')
try_protocol_combo(ssl.PROTOCOL_TLSv1_2, ssl.PROTOCOL_TLSv1, False)
try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1_2, False)
try_protocol_combo(ssl.PROTOCOL_TLSv1_2, ssl.PROTOCOL_TLSv1_1, False)
try_protocol_combo(ssl.PROTOCOL_TLSv1_1, ssl.PROTOCOL_TLSv1_2, False)
if has_tls_protocol(ssl.PROTOCOL_TLSv1):
try_protocol_combo(ssl.PROTOCOL_TLSv1_2, ssl.PROTOCOL_TLSv1, False)
try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1_2, False)
if has_tls_protocol(ssl.PROTOCOL_TLSv1_1):
try_protocol_combo(ssl.PROTOCOL_TLSv1_2, ssl.PROTOCOL_TLSv1_1, False)
try_protocol_combo(ssl.PROTOCOL_TLSv1_1, ssl.PROTOCOL_TLSv1_2, False)

def test_starttls(self):
"""Switching from clear text to encrypted and back again."""
Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
``test_ssl`` is now checking for supported TLS version and protocols in more
tests.