From f7dc7fb74d7c44a60f36a69437125f5ff70e32e5 Mon Sep 17 00:00:00 2001 From: Victor Stinner Date: Mon, 21 Sep 2015 18:06:17 +0200 Subject: Issue #25114, asyncio: add ssl_object extra info to SSL transports This info is required on Python 3.5 and newer to get specific information on the SSL object, like getting the binary peer certificate (instead of getting it as text). --- Doc/library/asyncio-protocol.rst | 5 +++ Lib/asyncio/selector_events.py | 1 + Lib/asyncio/sslproto.py | 4 ++ Lib/test/test_asyncio/test_events.py | 75 ++++++++++++++++++++++++++++++------ 4 files changed, 73 insertions(+), 12 deletions(-) diff --git a/Doc/library/asyncio-protocol.rst b/Doc/library/asyncio-protocol.rst index 02a1b68..656816f 100644 --- a/Doc/library/asyncio-protocol.rst +++ b/Doc/library/asyncio-protocol.rst @@ -71,6 +71,8 @@ BaseTransport - ``'peercert'``: peer certificate; result of :meth:`ssl.SSLSocket.getpeercert` - ``'sslcontext'``: :class:`ssl.SSLContext` instance + - ``'ssl_object'``: :class:`ssl.SSLObject` or :class:`ssl.SSLSocket` + instance * pipe: @@ -80,6 +82,9 @@ BaseTransport - ``'subprocess'``: :class:`subprocess.Popen` instance + .. versionchanged:: 3.4.4 + ``'ssl_object'`` info was added to SSL sockets. + ReadTransport ------------- diff --git a/Lib/asyncio/selector_events.py b/Lib/asyncio/selector_events.py index 4a99658..0060912 100644 --- a/Lib/asyncio/selector_events.py +++ b/Lib/asyncio/selector_events.py @@ -843,6 +843,7 @@ class _SelectorSslTransport(_SelectorTransport): self._extra.update(peercert=peercert, cipher=self._sock.cipher(), compression=self._sock.compression(), + ssl_object=self._sock, ) self._read_wants_write = False diff --git a/Lib/asyncio/sslproto.py b/Lib/asyncio/sslproto.py index e5ae49a..0a8c090 100644 --- a/Lib/asyncio/sslproto.py +++ b/Lib/asyncio/sslproto.py @@ -295,6 +295,7 @@ class _SSLProtocolTransport(transports._FlowControlMixin, def __init__(self, loop, ssl_protocol, app_protocol): self._loop = loop + # SSLProtocol instance self._ssl_protocol = ssl_protocol self._app_protocol = app_protocol self._closed = False @@ -425,10 +426,12 @@ class SSLProtocol(protocols.Protocol): self._app_protocol = app_protocol self._app_transport = _SSLProtocolTransport(self._loop, self, self._app_protocol) + # _SSLPipe instance (None until the connection is made) self._sslpipe = None self._session_established = False self._in_handshake = False self._in_shutdown = False + # transport, ex: SelectorSocketTransport self._transport = None def _wakeup_waiter(self, exc=None): @@ -591,6 +594,7 @@ class SSLProtocol(protocols.Protocol): self._extra.update(peercert=peercert, cipher=sslobj.cipher(), compression=sslobj.compression(), + ssl_object=sslobj, ) self._app_protocol.connection_made(self._app_transport) self._wakeup_waiter() diff --git a/Lib/test/test_asyncio/test_events.py b/Lib/test/test_asyncio/test_events.py index 8fbba8f..ba1fa5d 100644 --- a/Lib/test/test_asyncio/test_events.py +++ b/Lib/test/test_asyncio/test_events.py @@ -57,6 +57,17 @@ ONLYCERT = data_file('ssl_cert.pem') ONLYKEY = data_file('ssl_key.pem') SIGNED_CERTFILE = data_file('keycert3.pem') SIGNING_CA = data_file('pycacert.pem') +PEERCERT = {'serialNumber': 'B09264B1F2DA21D1', + 'version': 1, + 'subject': ((('countryName', 'XY'),), + (('localityName', 'Castle Anthrax'),), + (('organizationName', 'Python Software Foundation'),), + (('commonName', 'localhost'),)), + 'issuer': ((('countryName', 'XY'),), + (('organizationName', 'Python Software Foundation CA'),), + (('commonName', 'our-ca-server'),)), + 'notAfter': 'Nov 13 19:47:07 2022 GMT', + 'notBefore': 'Jan 4 19:47:07 2013 GMT'} class MyBaseProto(asyncio.Protocol): @@ -596,22 +607,56 @@ class EventLoopTestsMixin: self.assertGreater(pr.nbytes, 0) tr.close() + def check_ssl_extra_info(self, client, check_sockname=True, + peername=None, peercert={}): + if check_sockname: + self.assertIsNotNone(client.get_extra_info('sockname')) + if peername: + self.assertEqual(peername, + client.get_extra_info('peername')) + else: + self.assertIsNotNone(client.get_extra_info('peername')) + self.assertEqual(peercert, + client.get_extra_info('peercert')) + + # Python disables compression to prevent CRIME attacks by default + self.assertIsNone(client.get_extra_info('compression')) + + # test SSL cipher + cipher = client.get_extra_info('cipher') + self.assertIsInstance(cipher, tuple) + self.assertEqual(len(cipher), 3, cipher) + self.assertIsInstance(cipher[0], str) + self.assertIsInstance(cipher[1], str) + self.assertIsInstance(cipher[2], int) + + # test SSL object + sslobj = client.get_extra_info('ssl_object') + self.assertIsNotNone(sslobj) + self.assertEqual(sslobj.compression(), + client.get_extra_info('compression')) + self.assertEqual(sslobj.cipher(), + client.get_extra_info('cipher')) + self.assertEqual(sslobj.getpeercert(), + client.get_extra_info('peercert')) + def _basetest_create_ssl_connection(self, connection_fut, - check_sockname=True): + check_sockname=True, + peername=None): tr, pr = self.loop.run_until_complete(connection_fut) self.assertIsInstance(tr, asyncio.Transport) self.assertIsInstance(pr, asyncio.Protocol) self.assertTrue('ssl' in tr.__class__.__name__.lower()) - if check_sockname: - self.assertIsNotNone(tr.get_extra_info('sockname')) + self.check_ssl_extra_info(tr, check_sockname, peername) self.loop.run_until_complete(pr.done) self.assertGreater(pr.nbytes, 0) tr.close() def _test_create_ssl_connection(self, httpd, create_connection, - check_sockname=True): + check_sockname=True, peername=None): conn_fut = create_connection(ssl=test_utils.dummy_ssl_context()) - self._basetest_create_ssl_connection(conn_fut, check_sockname) + self._basetest_create_ssl_connection(conn_fut, check_sockname, + peername) # ssl.Purpose was introduced in Python 3.4 if hasattr(ssl, 'Purpose'): @@ -629,7 +674,8 @@ class EventLoopTestsMixin: with mock.patch('ssl.create_default_context', side_effect=_dummy_ssl_create_context) as m: conn_fut = create_connection(ssl=True) - self._basetest_create_ssl_connection(conn_fut, check_sockname) + self._basetest_create_ssl_connection(conn_fut, check_sockname, + peername) self.assertEqual(m.call_count, 1) # With the real ssl.create_default_context(), certificate @@ -638,7 +684,8 @@ class EventLoopTestsMixin: conn_fut = create_connection(ssl=True) # Ignore the "SSL handshake failed" log in debug mode with test_utils.disable_logger(): - self._basetest_create_ssl_connection(conn_fut, check_sockname) + self._basetest_create_ssl_connection(conn_fut, check_sockname, + peername) self.assertEqual(cm.exception.reason, 'CERTIFICATE_VERIFY_FAILED') @@ -649,7 +696,8 @@ class EventLoopTestsMixin: self.loop.create_connection, lambda: MyProto(loop=self.loop), *httpd.address) - self._test_create_ssl_connection(httpd, create_connection) + self._test_create_ssl_connection(httpd, create_connection, + peername=httpd.address) def test_legacy_create_ssl_connection(self): with test_utils.force_legacy_ssl_support(): @@ -669,7 +717,8 @@ class EventLoopTestsMixin: server_hostname='127.0.0.1') self._test_create_ssl_connection(httpd, create_connection, - check_sockname) + check_sockname, + peername=httpd.address) def test_legacy_create_ssl_unix_connection(self): with test_utils.force_legacy_ssl_support(): @@ -819,9 +868,7 @@ class EventLoopTestsMixin: self.assertEqual(3, proto.nbytes) # extra info is available - self.assertIsNotNone(proto.transport.get_extra_info('sockname')) - self.assertEqual('127.0.0.1', - proto.transport.get_extra_info('peername')[0]) + self.check_ssl_extra_info(client, peername=(host, port)) # close connection proto.transport.close() @@ -1023,6 +1070,10 @@ class EventLoopTestsMixin: server_hostname='localhost') client, pr = self.loop.run_until_complete(f_c) + # extra info is available + self.check_ssl_extra_info(client,peername=(host, port), + peercert=PEERCERT) + # close connection proto.transport.close() client.close() -- cgit v0.12