| # Test the support for SSL and sockets |
| |
| import sys |
| import unittest |
| from test import support |
| import socket |
| import select |
| import time |
| import gc |
| import os |
| import errno |
| import pprint |
| import tempfile |
| import urllib.request |
| import traceback |
| import asyncore |
| import weakref |
| import platform |
| import functools |
| |
| ssl = support.import_module("ssl") |
| |
| PROTOCOLS = [ |
| ssl.PROTOCOL_SSLv3, |
| ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1 |
| ] |
| if hasattr(ssl, 'PROTOCOL_SSLv2'): |
| PROTOCOLS.append(ssl.PROTOCOL_SSLv2) |
| |
| HOST = support.HOST |
| |
| data_file = lambda name: os.path.join(os.path.dirname(__file__), name) |
| |
| # The custom key and certificate files used in test_ssl are generated |
| # using Lib/test/make_ssl_certs.py. |
| # Other certificates are simply fetched from the Internet servers they |
| # are meant to authenticate. |
| |
| CERTFILE = data_file("keycert.pem") |
| BYTES_CERTFILE = os.fsencode(CERTFILE) |
| ONLYCERT = data_file("ssl_cert.pem") |
| ONLYKEY = data_file("ssl_key.pem") |
| BYTES_ONLYCERT = os.fsencode(ONLYCERT) |
| BYTES_ONLYKEY = os.fsencode(ONLYKEY) |
| CAPATH = data_file("capath") |
| BYTES_CAPATH = os.fsencode(CAPATH) |
| |
| SVN_PYTHON_ORG_ROOT_CERT = data_file("https_svn_python_org_root.pem") |
| |
| EMPTYCERT = data_file("nullcert.pem") |
| BADCERT = data_file("badcert.pem") |
| WRONGCERT = data_file("XXXnonexisting.pem") |
| BADKEY = data_file("badkey.pem") |
| NOKIACERT = data_file("nokia.pem") |
| |
| |
| def handle_error(prefix): |
| exc_format = ' '.join(traceback.format_exception(*sys.exc_info())) |
| if support.verbose: |
| sys.stdout.write(prefix + exc_format) |
| |
| def can_clear_options(): |
| # 0.9.8m or higher |
| return ssl._OPENSSL_API_VERSION >= (0, 9, 8, 13, 15) |
| |
| def no_sslv2_implies_sslv3_hello(): |
| # 0.9.7h or higher |
| return ssl.OPENSSL_VERSION_INFO >= (0, 9, 7, 8, 15) |
| |
| |
| # Issue #9415: Ubuntu hijacks their OpenSSL and forcefully disables SSLv2 |
| def skip_if_broken_ubuntu_ssl(func): |
| if hasattr(ssl, 'PROTOCOL_SSLv2'): |
| @functools.wraps(func) |
| def f(*args, **kwargs): |
| try: |
| ssl.SSLContext(ssl.PROTOCOL_SSLv2) |
| except ssl.SSLError: |
| if (ssl.OPENSSL_VERSION_INFO == (0, 9, 8, 15, 15) and |
| platform.linux_distribution() == ('debian', 'squeeze/sid', '')): |
| raise unittest.SkipTest("Patched Ubuntu OpenSSL breaks behaviour") |
| return func(*args, **kwargs) |
| return f |
| else: |
| return func |
| |
| |
| class BasicSocketTests(unittest.TestCase): |
| |
| def test_constants(self): |
| #ssl.PROTOCOL_SSLv2 |
| ssl.PROTOCOL_SSLv23 |
| ssl.PROTOCOL_SSLv3 |
| ssl.PROTOCOL_TLSv1 |
| ssl.CERT_NONE |
| ssl.CERT_OPTIONAL |
| ssl.CERT_REQUIRED |
| self.assertIn(ssl.HAS_SNI, {True, False}) |
| |
| def test_random(self): |
| v = ssl.RAND_status() |
| if support.verbose: |
| sys.stdout.write("\n RAND_status is %d (%s)\n" |
| % (v, (v and "sufficient randomness") or |
| "insufficient randomness")) |
| try: |
| ssl.RAND_egd(1) |
| except TypeError: |
| pass |
| else: |
| print("didn't raise TypeError") |
| ssl.RAND_add("this is a random string", 75.0) |
| |
| def test_parse_cert(self): |
| # note that this uses an 'unofficial' function in _ssl.c, |
| # provided solely for this test, to exercise the certificate |
| # parsing code |
| p = ssl._ssl._test_decode_cert(CERTFILE) |
| if support.verbose: |
| sys.stdout.write("\n" + pprint.pformat(p) + "\n") |
| self.assertEqual(p['issuer'], |
| ((('countryName', 'XY'),), |
| (('localityName', 'Castle Anthrax'),), |
| (('organizationName', 'Python Software Foundation'),), |
| (('commonName', 'localhost'),)) |
| ) |
| self.assertEqual(p['notAfter'], 'Oct 5 23:01:56 2020 GMT') |
| self.assertEqual(p['notBefore'], 'Oct 8 23:01:56 2010 GMT') |
| self.assertEqual(p['serialNumber'], 'D7C7381919AFC24E') |
| self.assertEqual(p['subject'], |
| ((('countryName', 'XY'),), |
| (('localityName', 'Castle Anthrax'),), |
| (('organizationName', 'Python Software Foundation'),), |
| (('commonName', 'localhost'),)) |
| ) |
| self.assertEqual(p['subjectAltName'], (('DNS', 'localhost'),)) |
| # Issue #13034: the subjectAltName in some certificates |
| # (notably projects.developer.nokia.com:443) wasn't parsed |
| p = ssl._ssl._test_decode_cert(NOKIACERT) |
| if support.verbose: |
| sys.stdout.write("\n" + pprint.pformat(p) + "\n") |
| self.assertEqual(p['subjectAltName'], |
| (('DNS', 'projects.developer.nokia.com'), |
| ('DNS', 'projects.forum.nokia.com')) |
| ) |
| |
| def test_DER_to_PEM(self): |
| with open(SVN_PYTHON_ORG_ROOT_CERT, 'r') as f: |
| pem = f.read() |
| d1 = ssl.PEM_cert_to_DER_cert(pem) |
| p2 = ssl.DER_cert_to_PEM_cert(d1) |
| d2 = ssl.PEM_cert_to_DER_cert(p2) |
| self.assertEqual(d1, d2) |
| if not p2.startswith(ssl.PEM_HEADER + '\n'): |
| self.fail("DER-to-PEM didn't include correct header:\n%r\n" % p2) |
| if not p2.endswith('\n' + ssl.PEM_FOOTER + '\n'): |
| self.fail("DER-to-PEM didn't include correct footer:\n%r\n" % p2) |
| |
| def test_openssl_version(self): |
| n = ssl.OPENSSL_VERSION_NUMBER |
| t = ssl.OPENSSL_VERSION_INFO |
| s = ssl.OPENSSL_VERSION |
| self.assertIsInstance(n, int) |
| self.assertIsInstance(t, tuple) |
| self.assertIsInstance(s, str) |
| # Some sanity checks follow |
| # >= 0.9 |
| self.assertGreaterEqual(n, 0x900000) |
| # < 2.0 |
| self.assertLess(n, 0x20000000) |
| major, minor, fix, patch, status = t |
| self.assertGreaterEqual(major, 0) |
| self.assertLess(major, 2) |
| self.assertGreaterEqual(minor, 0) |
| self.assertLess(minor, 256) |
| self.assertGreaterEqual(fix, 0) |
| self.assertLess(fix, 256) |
| self.assertGreaterEqual(patch, 0) |
| self.assertLessEqual(patch, 26) |
| self.assertGreaterEqual(status, 0) |
| self.assertLessEqual(status, 15) |
| # Version string as returned by OpenSSL, the format might change |
| self.assertTrue(s.startswith("OpenSSL {:d}.{:d}.{:d}".format(major, minor, fix)), |
| (s, t)) |
| |
| @support.cpython_only |
| def test_refcycle(self): |
| # Issue #7943: an SSL object doesn't create reference cycles with |
| # itself. |
| s = socket.socket(socket.AF_INET) |
| ss = ssl.wrap_socket(s) |
| wr = weakref.ref(ss) |
| del ss |
| self.assertEqual(wr(), None) |
| |
| def test_wrapped_unconnected(self): |
| # Methods on an unconnected SSLSocket propagate the original |
| # socket.error raise by the underlying socket object. |
| s = socket.socket(socket.AF_INET) |
| ss = ssl.wrap_socket(s) |
| self.assertRaises(socket.error, ss.recv, 1) |
| self.assertRaises(socket.error, ss.recv_into, bytearray(b'x')) |
| self.assertRaises(socket.error, ss.recvfrom, 1) |
| self.assertRaises(socket.error, ss.recvfrom_into, bytearray(b'x'), 1) |
| self.assertRaises(socket.error, ss.send, b'x') |
| self.assertRaises(socket.error, ss.sendto, b'x', ('0.0.0.0', 0)) |
| |
| def test_timeout(self): |
| # Issue #8524: when creating an SSL socket, the timeout of the |
| # original socket should be retained. |
| for timeout in (None, 0.0, 5.0): |
| s = socket.socket(socket.AF_INET) |
| s.settimeout(timeout) |
| ss = ssl.wrap_socket(s) |
| self.assertEqual(timeout, ss.gettimeout()) |
| |
| def test_errors(self): |
| sock = socket.socket() |
| self.assertRaisesRegex(ValueError, |
| "certfile must be specified", |
| ssl.wrap_socket, sock, keyfile=CERTFILE) |
| self.assertRaisesRegex(ValueError, |
| "certfile must be specified for server-side operations", |
| ssl.wrap_socket, sock, server_side=True) |
| self.assertRaisesRegex(ValueError, |
| "certfile must be specified for server-side operations", |
| ssl.wrap_socket, sock, server_side=True, certfile="") |
| s = ssl.wrap_socket(sock, server_side=True, certfile=CERTFILE) |
| self.assertRaisesRegex(ValueError, "can't connect in server-side mode", |
| s.connect, (HOST, 8080)) |
| with self.assertRaises(IOError) as cm: |
| with socket.socket() as sock: |
| ssl.wrap_socket(sock, certfile=WRONGCERT) |
| self.assertEqual(cm.exception.errno, errno.ENOENT) |
| with self.assertRaises(IOError) as cm: |
| with socket.socket() as sock: |
| ssl.wrap_socket(sock, certfile=CERTFILE, keyfile=WRONGCERT) |
| self.assertEqual(cm.exception.errno, errno.ENOENT) |
| with self.assertRaises(IOError) as cm: |
| with socket.socket() as sock: |
| ssl.wrap_socket(sock, certfile=WRONGCERT, keyfile=WRONGCERT) |
| self.assertEqual(cm.exception.errno, errno.ENOENT) |
| |
| def test_match_hostname(self): |
| def ok(cert, hostname): |
| ssl.match_hostname(cert, hostname) |
| def fail(cert, hostname): |
| self.assertRaises(ssl.CertificateError, |
| ssl.match_hostname, cert, hostname) |
| |
| cert = {'subject': ((('commonName', 'example.com'),),)} |
| ok(cert, 'example.com') |
| ok(cert, 'ExAmple.cOm') |
| fail(cert, 'www.example.com') |
| fail(cert, '.example.com') |
| fail(cert, 'example.org') |
| fail(cert, 'exampleXcom') |
| |
| cert = {'subject': ((('commonName', '*.a.com'),),)} |
| ok(cert, 'foo.a.com') |
| fail(cert, 'bar.foo.a.com') |
| fail(cert, 'a.com') |
| fail(cert, 'Xa.com') |
| fail(cert, '.a.com') |
| |
| cert = {'subject': ((('commonName', 'a.*.com'),),)} |
| ok(cert, 'a.foo.com') |
| fail(cert, 'a..com') |
| fail(cert, 'a.com') |
| |
| cert = {'subject': ((('commonName', 'f*.com'),),)} |
| ok(cert, 'foo.com') |
| ok(cert, 'f.com') |
| fail(cert, 'bar.com') |
| fail(cert, 'foo.a.com') |
| fail(cert, 'bar.foo.com') |
| |
| # Slightly fake real-world example |
| cert = {'notAfter': 'Jun 26 21:41:46 2011 GMT', |
| 'subject': ((('commonName', 'linuxfrz.org'),),), |
| 'subjectAltName': (('DNS', 'linuxfr.org'), |
| ('DNS', 'linuxfr.com'), |
| ('othername', '<unsupported>'))} |
| ok(cert, 'linuxfr.org') |
| ok(cert, 'linuxfr.com') |
| # Not a "DNS" entry |
| fail(cert, '<unsupported>') |
| # When there is a subjectAltName, commonName isn't used |
| fail(cert, 'linuxfrz.org') |
| |
| # A pristine real-world example |
| cert = {'notAfter': 'Dec 18 23:59:59 2011 GMT', |
| 'subject': ((('countryName', 'US'),), |
| (('stateOrProvinceName', 'California'),), |
| (('localityName', 'Mountain View'),), |
| (('organizationName', 'Google Inc'),), |
| (('commonName', 'mail.google.com'),))} |
| ok(cert, 'mail.google.com') |
| fail(cert, 'gmail.com') |
| # Only commonName is considered |
| fail(cert, 'California') |
| |
| # Neither commonName nor subjectAltName |
| cert = {'notAfter': 'Dec 18 23:59:59 2011 GMT', |
| 'subject': ((('countryName', 'US'),), |
| (('stateOrProvinceName', 'California'),), |
| (('localityName', 'Mountain View'),), |
| (('organizationName', 'Google Inc'),))} |
| fail(cert, 'mail.google.com') |
| |
| # No DNS entry in subjectAltName but a commonName |
| cert = {'notAfter': 'Dec 18 23:59:59 2099 GMT', |
| 'subject': ((('countryName', 'US'),), |
| (('stateOrProvinceName', 'California'),), |
| (('localityName', 'Mountain View'),), |
| (('commonName', 'mail.google.com'),)), |
| 'subjectAltName': (('othername', 'blabla'), )} |
| ok(cert, 'mail.google.com') |
| |
| # No DNS entry subjectAltName and no commonName |
| cert = {'notAfter': 'Dec 18 23:59:59 2099 GMT', |
| 'subject': ((('countryName', 'US'),), |
| (('stateOrProvinceName', 'California'),), |
| (('localityName', 'Mountain View'),), |
| (('organizationName', 'Google Inc'),)), |
| 'subjectAltName': (('othername', 'blabla'),)} |
| fail(cert, 'google.com') |
| |
| # Empty cert / no cert |
| self.assertRaises(ValueError, ssl.match_hostname, None, 'example.com') |
| self.assertRaises(ValueError, ssl.match_hostname, {}, 'example.com') |
| |
| def test_server_side(self): |
| # server_hostname doesn't work for server sockets |
| ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23) |
| with socket.socket() as sock: |
| self.assertRaises(ValueError, ctx.wrap_socket, sock, True, |
| server_hostname="some.hostname") |
| |
| class ContextTests(unittest.TestCase): |
| |
| @skip_if_broken_ubuntu_ssl |
| def test_constructor(self): |
| if hasattr(ssl, 'PROTOCOL_SSLv2'): |
| ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv2) |
| ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23) |
| ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv3) |
| ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1) |
| self.assertRaises(TypeError, ssl.SSLContext) |
| self.assertRaises(ValueError, ssl.SSLContext, -1) |
| self.assertRaises(ValueError, ssl.SSLContext, 42) |
| |
| @skip_if_broken_ubuntu_ssl |
| def test_protocol(self): |
| for proto in PROTOCOLS: |
| ctx = ssl.SSLContext(proto) |
| self.assertEqual(ctx.protocol, proto) |
| |
| def test_ciphers(self): |
| ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1) |
| ctx.set_ciphers("ALL") |
| ctx.set_ciphers("DEFAULT") |
| with self.assertRaisesRegex(ssl.SSLError, "No cipher can be selected"): |
| ctx.set_ciphers("^$:,;?*'dorothyx") |
| |
| @skip_if_broken_ubuntu_ssl |
| def test_options(self): |
| ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1) |
| # OP_ALL is the default value |
| self.assertEqual(ssl.OP_ALL, ctx.options) |
| ctx.options |= ssl.OP_NO_SSLv2 |
| self.assertEqual(ssl.OP_ALL | ssl.OP_NO_SSLv2, |
| ctx.options) |
| ctx.options |= ssl.OP_NO_SSLv3 |
| self.assertEqual(ssl.OP_ALL | ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3, |
| ctx.options) |
| if can_clear_options(): |
| ctx.options = (ctx.options & ~ssl.OP_NO_SSLv2) | ssl.OP_NO_TLSv1 |
| self.assertEqual(ssl.OP_ALL | ssl.OP_NO_TLSv1 | ssl.OP_NO_SSLv3, |
| ctx.options) |
| ctx.options = 0 |
| self.assertEqual(0, ctx.options) |
| else: |
| with self.assertRaises(ValueError): |
| ctx.options = 0 |
| |
| def test_verify(self): |
| ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1) |
| # Default value |
| self.assertEqual(ctx.verify_mode, ssl.CERT_NONE) |
| ctx.verify_mode = ssl.CERT_OPTIONAL |
| self.assertEqual(ctx.verify_mode, ssl.CERT_OPTIONAL) |
| ctx.verify_mode = ssl.CERT_REQUIRED |
| self.assertEqual(ctx.verify_mode, ssl.CERT_REQUIRED) |
| ctx.verify_mode = ssl.CERT_NONE |
| self.assertEqual(ctx.verify_mode, ssl.CERT_NONE) |
| with self.assertRaises(TypeError): |
| ctx.verify_mode = None |
| with self.assertRaises(ValueError): |
| ctx.verify_mode = 42 |
| |
| def test_load_cert_chain(self): |
| ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1) |
| # Combined key and cert in a single file |
| ctx.load_cert_chain(CERTFILE) |
| ctx.load_cert_chain(CERTFILE, keyfile=CERTFILE) |
| self.assertRaises(TypeError, ctx.load_cert_chain, keyfile=CERTFILE) |
| with self.assertRaises(IOError) as cm: |
| ctx.load_cert_chain(WRONGCERT) |
| self.assertEqual(cm.exception.errno, errno.ENOENT) |
| with self.assertRaisesRegex(ssl.SSLError, "PEM lib"): |
| ctx.load_cert_chain(BADCERT) |
| with self.assertRaisesRegex(ssl.SSLError, "PEM lib"): |
| ctx.load_cert_chain(EMPTYCERT) |
| # Separate key and cert |
| ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1) |
| ctx.load_cert_chain(ONLYCERT, ONLYKEY) |
| ctx.load_cert_chain(certfile=ONLYCERT, keyfile=ONLYKEY) |
| ctx.load_cert_chain(certfile=BYTES_ONLYCERT, keyfile=BYTES_ONLYKEY) |
| with self.assertRaisesRegex(ssl.SSLError, "PEM lib"): |
| ctx.load_cert_chain(ONLYCERT) |
| with self.assertRaisesRegex(ssl.SSLError, "PEM lib"): |
| ctx.load_cert_chain(ONLYKEY) |
| with self.assertRaisesRegex(ssl.SSLError, "PEM lib"): |
| ctx.load_cert_chain(certfile=ONLYKEY, keyfile=ONLYCERT) |
| # Mismatching key and cert |
| ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1) |
| with self.assertRaisesRegex(ssl.SSLError, "key values mismatch"): |
| ctx.load_cert_chain(SVN_PYTHON_ORG_ROOT_CERT, ONLYKEY) |
| |
| def test_load_verify_locations(self): |
| ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1) |
| ctx.load_verify_locations(CERTFILE) |
| ctx.load_verify_locations(cafile=CERTFILE, capath=None) |
| ctx.load_verify_locations(BYTES_CERTFILE) |
| ctx.load_verify_locations(cafile=BYTES_CERTFILE, capath=None) |
| self.assertRaises(TypeError, ctx.load_verify_locations) |
| self.assertRaises(TypeError, ctx.load_verify_locations, None, None) |
| with self.assertRaises(IOError) as cm: |
| ctx.load_verify_locations(WRONGCERT) |
| self.assertEqual(cm.exception.errno, errno.ENOENT) |
| with self.assertRaisesRegex(ssl.SSLError, "PEM lib"): |
| ctx.load_verify_locations(BADCERT) |
| ctx.load_verify_locations(CERTFILE, CAPATH) |
| ctx.load_verify_locations(CERTFILE, capath=BYTES_CAPATH) |
| |
| # Issue #10989: crash if the second argument type is invalid |
| self.assertRaises(TypeError, ctx.load_verify_locations, None, True) |
| |
| @skip_if_broken_ubuntu_ssl |
| def test_session_stats(self): |
| for proto in PROTOCOLS: |
| ctx = ssl.SSLContext(proto) |
| self.assertEqual(ctx.session_stats(), { |
| 'number': 0, |
| 'connect': 0, |
| 'connect_good': 0, |
| 'connect_renegotiate': 0, |
| 'accept': 0, |
| 'accept_good': 0, |
| 'accept_renegotiate': 0, |
| 'hits': 0, |
| 'misses': 0, |
| 'timeouts': 0, |
| 'cache_full': 0, |
| }) |
| |
| def test_set_default_verify_paths(self): |
| # There's not much we can do to test that it acts as expected, |
| # so just check it doesn't crash or raise an exception. |
| ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1) |
| ctx.set_default_verify_paths() |
| |
| |
| class NetworkedTests(unittest.TestCase): |
| |
| def test_connect(self): |
| with support.transient_internet("svn.python.org"): |
| s = ssl.wrap_socket(socket.socket(socket.AF_INET), |
| cert_reqs=ssl.CERT_NONE) |
| try: |
| s.connect(("svn.python.org", 443)) |
| self.assertEqual({}, s.getpeercert()) |
| finally: |
| s.close() |
| |
| # this should fail because we have no verification certs |
| s = ssl.wrap_socket(socket.socket(socket.AF_INET), |
| cert_reqs=ssl.CERT_REQUIRED) |
| self.assertRaisesRegex(ssl.SSLError, "certificate verify failed", |
| s.connect, ("svn.python.org", 443)) |
| s.close() |
| |
| # this should succeed because we specify the root cert |
| s = ssl.wrap_socket(socket.socket(socket.AF_INET), |
| cert_reqs=ssl.CERT_REQUIRED, |
| ca_certs=SVN_PYTHON_ORG_ROOT_CERT) |
| try: |
| s.connect(("svn.python.org", 443)) |
| self.assertTrue(s.getpeercert()) |
| finally: |
| s.close() |
| |
| def test_connect_ex(self): |
| # Issue #11326: check connect_ex() implementation |
| with support.transient_internet("svn.python.org"): |
| s = ssl.wrap_socket(socket.socket(socket.AF_INET), |
| cert_reqs=ssl.CERT_REQUIRED, |
| ca_certs=SVN_PYTHON_ORG_ROOT_CERT) |
| try: |
| self.assertEqual(0, s.connect_ex(("svn.python.org", 443))) |
| self.assertTrue(s.getpeercert()) |
| finally: |
| s.close() |
| |
| def test_non_blocking_connect_ex(self): |
| # Issue #11326: non-blocking connect_ex() should allow handshake |
| # to proceed after the socket gets ready. |
| with support.transient_internet("svn.python.org"): |
| s = ssl.wrap_socket(socket.socket(socket.AF_INET), |
| cert_reqs=ssl.CERT_REQUIRED, |
| ca_certs=SVN_PYTHON_ORG_ROOT_CERT, |
| do_handshake_on_connect=False) |
| try: |
| s.setblocking(False) |
| rc = s.connect_ex(('svn.python.org', 443)) |
| # EWOULDBLOCK under Windows, EINPROGRESS elsewhere |
| self.assertIn(rc, (0, errno.EINPROGRESS, errno.EWOULDBLOCK)) |
| # Wait for connect to finish |
| select.select([], [s], [], 5.0) |
| # Non-blocking handshake |
| while True: |
| try: |
| s.do_handshake() |
| break |
| except ssl.SSLError as err: |
| if err.args[0] == ssl.SSL_ERROR_WANT_READ: |
| select.select([s], [], [], 5.0) |
| elif err.args[0] == ssl.SSL_ERROR_WANT_WRITE: |
| select.select([], [s], [], 5.0) |
| else: |
| raise |
| # SSL established |
| self.assertTrue(s.getpeercert()) |
| finally: |
| s.close() |
| |
| def test_timeout_connect_ex(self): |
| # Issue #12065: on a timeout, connect_ex() should return the original |
| # errno (mimicking the behaviour of non-SSL sockets). |
| with support.transient_internet("svn.python.org"): |
| s = ssl.wrap_socket(socket.socket(socket.AF_INET), |
| cert_reqs=ssl.CERT_REQUIRED, |
| ca_certs=SVN_PYTHON_ORG_ROOT_CERT, |
| do_handshake_on_connect=False) |
| try: |
| s.settimeout(0.0000001) |
| rc = s.connect_ex(('svn.python.org', 443)) |
| if rc == 0: |
| self.skipTest("svn.python.org responded too quickly") |
| self.assertIn(rc, (errno.EAGAIN, errno.EWOULDBLOCK)) |
| finally: |
| s.close() |
| |
| def test_connect_with_context(self): |
| with support.transient_internet("svn.python.org"): |
| # Same as test_connect, but with a separately created context |
| ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23) |
| s = ctx.wrap_socket(socket.socket(socket.AF_INET)) |
| s.connect(("svn.python.org", 443)) |
| try: |
| self.assertEqual({}, s.getpeercert()) |
| finally: |
| s.close() |
| # Same with a server hostname |
| s = ctx.wrap_socket(socket.socket(socket.AF_INET), |
| server_hostname="svn.python.org") |
| if ssl.HAS_SNI: |
| s.connect(("svn.python.org", 443)) |
| s.close() |
| else: |
| self.assertRaises(ValueError, s.connect, ("svn.python.org", 443)) |
| # This should fail because we have no verification certs |
| ctx.verify_mode = ssl.CERT_REQUIRED |
| s = ctx.wrap_socket(socket.socket(socket.AF_INET)) |
| self.assertRaisesRegex(ssl.SSLError, "certificate verify failed", |
| s.connect, ("svn.python.org", 443)) |
| s.close() |
| # This should succeed because we specify the root cert |
| ctx.load_verify_locations(SVN_PYTHON_ORG_ROOT_CERT) |
| s = ctx.wrap_socket(socket.socket(socket.AF_INET)) |
| s.connect(("svn.python.org", 443)) |
| try: |
| cert = s.getpeercert() |
| self.assertTrue(cert) |
| finally: |
| s.close() |
| |
| def test_connect_capath(self): |
| # Verify server certificates using the `capath` argument |
| # NOTE: the subject hashing algorithm has been changed between |
| # OpenSSL 0.9.8n and 1.0.0, as a result the capath directory must |
| # contain both versions of each certificate (same content, different |
| # filename) for this test to be portable across OpenSSL releases. |
| with support.transient_internet("svn.python.org"): |
| ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23) |
| ctx.verify_mode = ssl.CERT_REQUIRED |
| ctx.load_verify_locations(capath=CAPATH) |
| s = ctx.wrap_socket(socket.socket(socket.AF_INET)) |
| s.connect(("svn.python.org", 443)) |
| try: |
| cert = s.getpeercert() |
| self.assertTrue(cert) |
| finally: |
| s.close() |
| # Same with a bytes `capath` argument |
| ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23) |
| ctx.verify_mode = ssl.CERT_REQUIRED |
| ctx.load_verify_locations(capath=BYTES_CAPATH) |
| s = ctx.wrap_socket(socket.socket(socket.AF_INET)) |
| s.connect(("svn.python.org", 443)) |
| try: |
| cert = s.getpeercert() |
| self.assertTrue(cert) |
| finally: |
| s.close() |
| |
| @unittest.skipIf(os.name == "nt", "Can't use a socket as a file under Windows") |
| def test_makefile_close(self): |
| # Issue #5238: creating a file-like object with makefile() shouldn't |
| # delay closing the underlying "real socket" (here tested with its |
| # file descriptor, hence skipping the test under Windows). |
| with support.transient_internet("svn.python.org"): |
| ss = ssl.wrap_socket(socket.socket(socket.AF_INET)) |
| ss.connect(("svn.python.org", 443)) |
| fd = ss.fileno() |
| f = ss.makefile() |
| f.close() |
| # The fd is still open |
| os.read(fd, 0) |
| # Closing the SSL socket should close the fd too |
| ss.close() |
| gc.collect() |
| with self.assertRaises(OSError) as e: |
| os.read(fd, 0) |
| self.assertEqual(e.exception.errno, errno.EBADF) |
| |
| def test_non_blocking_handshake(self): |
| with support.transient_internet("svn.python.org"): |
| s = socket.socket(socket.AF_INET) |
| s.connect(("svn.python.org", 443)) |
| s.setblocking(False) |
| s = ssl.wrap_socket(s, |
| cert_reqs=ssl.CERT_NONE, |
| do_handshake_on_connect=False) |
| count = 0 |
| while True: |
| try: |
| count += 1 |
| s.do_handshake() |
| break |
| except ssl.SSLError as err: |
| if err.args[0] == ssl.SSL_ERROR_WANT_READ: |
| select.select([s], [], []) |
| elif err.args[0] == ssl.SSL_ERROR_WANT_WRITE: |
| select.select([], [s], []) |
| else: |
| raise |
| s.close() |
| if support.verbose: |
| sys.stdout.write("\nNeeded %d calls to do_handshake() to establish session.\n" % count) |
| |
| def test_get_server_certificate(self): |
| with support.transient_internet("svn.python.org"): |
| pem = ssl.get_server_certificate(("svn.python.org", 443)) |
| if not pem: |
| self.fail("No server certificate on svn.python.org:443!") |
| |
| try: |
| pem = ssl.get_server_certificate(("svn.python.org", 443), ca_certs=CERTFILE) |
| except ssl.SSLError as x: |
| #should fail |
| if support.verbose: |
| sys.stdout.write("%s\n" % x) |
| else: |
| self.fail("Got server certificate %s for svn.python.org!" % pem) |
| |
| pem = ssl.get_server_certificate(("svn.python.org", 443), ca_certs=SVN_PYTHON_ORG_ROOT_CERT) |
| if not pem: |
| self.fail("No server certificate on svn.python.org:443!") |
| if support.verbose: |
| sys.stdout.write("\nVerified certificate for svn.python.org:443 is\n%s\n" % pem) |
| |
| def test_ciphers(self): |
| remote = ("svn.python.org", 443) |
| with support.transient_internet(remote[0]): |
| s = ssl.wrap_socket(socket.socket(socket.AF_INET), |
| cert_reqs=ssl.CERT_NONE, ciphers="ALL") |
| s.connect(remote) |
| s = ssl.wrap_socket(socket.socket(socket.AF_INET), |
| cert_reqs=ssl.CERT_NONE, ciphers="DEFAULT") |
| s.connect(remote) |
| # Error checking can happen at instantiation or when connecting |
| with self.assertRaisesRegex(ssl.SSLError, "No cipher can be selected"): |
| with socket.socket(socket.AF_INET) as sock: |
| s = ssl.wrap_socket(sock, |
| cert_reqs=ssl.CERT_NONE, ciphers="^$:,;?*'dorothyx") |
| s.connect(remote) |
| |
| def test_algorithms(self): |
| # Issue #8484: all algorithms should be available when verifying a |
| # certificate. |
| # SHA256 was added in OpenSSL 0.9.8 |
| if ssl.OPENSSL_VERSION_INFO < (0, 9, 8, 0, 15): |
| self.skipTest("SHA256 not available on %r" % ssl.OPENSSL_VERSION) |
| # https://sha2.hboeck.de/ was used until 2011-01-08 (no route to host) |
| remote = ("sha256.tbs-internet.com", 443) |
| sha256_cert = os.path.join(os.path.dirname(__file__), "sha256.pem") |
| with support.transient_internet("sha256.tbs-internet.com"): |
| s = ssl.wrap_socket(socket.socket(socket.AF_INET), |
| cert_reqs=ssl.CERT_REQUIRED, |
| ca_certs=sha256_cert,) |
| try: |
| s.connect(remote) |
| if support.verbose: |
| sys.stdout.write("\nCipher with %r is %r\n" % |
| (remote, s.cipher())) |
| sys.stdout.write("Certificate is:\n%s\n" % |
| pprint.pformat(s.getpeercert())) |
| finally: |
| s.close() |
| |
| |
| try: |
| import threading |
| except ImportError: |
| _have_threads = False |
| else: |
| _have_threads = True |
| |
| from test.ssl_servers import make_https_server |
| |
| class ThreadedEchoServer(threading.Thread): |
| |
| class ConnectionHandler(threading.Thread): |
| |
| """A mildly complicated class, because we want it to work both |
| with and without the SSL wrapper around the socket connection, so |
| that we can test the STARTTLS functionality.""" |
| |
| def __init__(self, server, connsock, addr): |
| self.server = server |
| self.running = False |
| self.sock = connsock |
| self.addr = addr |
| self.sock.setblocking(1) |
| self.sslconn = None |
| threading.Thread.__init__(self) |
| self.daemon = True |
| |
| def wrap_conn(self): |
| try: |
| self.sslconn = self.server.context.wrap_socket( |
| self.sock, server_side=True) |
| except ssl.SSLError: |
| # XXX Various errors can have happened here, for example |
| # a mismatching protocol version, an invalid certificate, |
| # or a low-level bug. This should be made more discriminating. |
| if self.server.chatty: |
| handle_error("\n server: bad connection attempt from " + repr(self.addr) + ":\n") |
| self.running = False |
| self.server.stop() |
| self.close() |
| return False |
| else: |
| if self.server.context.verify_mode == ssl.CERT_REQUIRED: |
| cert = self.sslconn.getpeercert() |
| if support.verbose and self.server.chatty: |
| sys.stdout.write(" client cert is " + pprint.pformat(cert) + "\n") |
| cert_binary = self.sslconn.getpeercert(True) |
| if support.verbose and self.server.chatty: |
| sys.stdout.write(" cert binary is " + str(len(cert_binary)) + " bytes\n") |
| cipher = self.sslconn.cipher() |
| if support.verbose and self.server.chatty: |
| sys.stdout.write(" server: connection cipher is now " + str(cipher) + "\n") |
| return True |
| |
| def read(self): |
| if self.sslconn: |
| return self.sslconn.read() |
| else: |
| return self.sock.recv(1024) |
| |
| def write(self, bytes): |
| if self.sslconn: |
| return self.sslconn.write(bytes) |
| else: |
| return self.sock.send(bytes) |
| |
| def close(self): |
| if self.sslconn: |
| self.sslconn.close() |
| else: |
| self.sock.close() |
| |
| def run(self): |
| self.running = True |
| if not self.server.starttls_server: |
| if not self.wrap_conn(): |
| return |
| while self.running: |
| try: |
| msg = self.read() |
| stripped = msg.strip() |
| if not stripped: |
| # eof, so quit this handler |
| self.running = False |
| self.close() |
| elif stripped == b'over': |
| if support.verbose and self.server.connectionchatty: |
| sys.stdout.write(" server: client closed connection\n") |
| self.close() |
| return |
| elif (self.server.starttls_server and |
| stripped == b'STARTTLS'): |
| if support.verbose and self.server.connectionchatty: |
| sys.stdout.write(" server: read STARTTLS from client, sending OK...\n") |
| self.write(b"OK\n") |
| if not self.wrap_conn(): |
| return |
| elif (self.server.starttls_server and self.sslconn |
| and stripped == b'ENDTLS'): |
| if support.verbose and self.server.connectionchatty: |
| sys.stdout.write(" server: read ENDTLS from client, sending OK...\n") |
| self.write(b"OK\n") |
| self.sock = self.sslconn.unwrap() |
| self.sslconn = None |
| if support.verbose and self.server.connectionchatty: |
| sys.stdout.write(" server: connection is now unencrypted...\n") |
| else: |
| if (support.verbose and |
| self.server.connectionchatty): |
| ctype = (self.sslconn and "encrypted") or "unencrypted" |
| sys.stdout.write(" server: read %r (%s), sending back %r (%s)...\n" |
| % (msg, ctype, msg.lower(), ctype)) |
| self.write(msg.lower()) |
| except socket.error: |
| if self.server.chatty: |
| handle_error("Test server failure:\n") |
| self.close() |
| self.running = False |
| # normally, we'd just stop here, but for the test |
| # harness, we want to stop the server |
| self.server.stop() |
| |
| def __init__(self, certificate=None, ssl_version=None, |
| certreqs=None, cacerts=None, |
| chatty=True, connectionchatty=False, starttls_server=False, |
| ciphers=None, context=None): |
| if context: |
| self.context = context |
| else: |
| self.context = ssl.SSLContext(ssl_version |
| if ssl_version is not None |
| else ssl.PROTOCOL_TLSv1) |
| self.context.verify_mode = (certreqs if certreqs is not None |
| else ssl.CERT_NONE) |
| if cacerts: |
| self.context.load_verify_locations(cacerts) |
| if certificate: |
| self.context.load_cert_chain(certificate) |
| if ciphers: |
| self.context.set_ciphers(ciphers) |
| self.chatty = chatty |
| self.connectionchatty = connectionchatty |
| self.starttls_server = starttls_server |
| self.sock = socket.socket() |
| self.port = support.bind_port(self.sock) |
| self.flag = None |
| self.active = False |
| threading.Thread.__init__(self) |
| self.daemon = True |
| |
| def start(self, flag=None): |
| self.flag = flag |
| threading.Thread.start(self) |
| |
| def run(self): |
| self.sock.settimeout(0.05) |
| self.sock.listen(5) |
| self.active = True |
| if self.flag: |
| # signal an event |
| self.flag.set() |
| while self.active: |
| try: |
| newconn, connaddr = self.sock.accept() |
| if support.verbose and self.chatty: |
| sys.stdout.write(' server: new connection from ' |
| + repr(connaddr) + '\n') |
| handler = self.ConnectionHandler(self, newconn, connaddr) |
| handler.start() |
| except socket.timeout: |
| pass |
| except KeyboardInterrupt: |
| self.stop() |
| self.sock.close() |
| |
| def stop(self): |
| self.active = False |
| |
| class AsyncoreEchoServer(threading.Thread): |
| |
| # this one's based on asyncore.dispatcher |
| |
| class EchoServer (asyncore.dispatcher): |
| |
| class ConnectionHandler (asyncore.dispatcher_with_send): |
| |
| def __init__(self, conn, certfile): |
| self.socket = ssl.wrap_socket(conn, server_side=True, |
| certfile=certfile, |
| do_handshake_on_connect=False) |
| asyncore.dispatcher_with_send.__init__(self, self.socket) |
| self._ssl_accepting = True |
| self._do_ssl_handshake() |
| |
| def readable(self): |
| if isinstance(self.socket, ssl.SSLSocket): |
| while self.socket.pending() > 0: |
| self.handle_read_event() |
| return True |
| |
| def _do_ssl_handshake(self): |
| try: |
| self.socket.do_handshake() |
| except ssl.SSLError as err: |
| if err.args[0] in (ssl.SSL_ERROR_WANT_READ, |
| ssl.SSL_ERROR_WANT_WRITE): |
| return |
| elif err.args[0] == ssl.SSL_ERROR_EOF: |
| return self.handle_close() |
| raise |
| except socket.error as err: |
| if err.args[0] == errno.ECONNABORTED: |
| return self.handle_close() |
| else: |
| self._ssl_accepting = False |
| |
| def handle_read(self): |
| if self._ssl_accepting: |
| self._do_ssl_handshake() |
| else: |
| data = self.recv(1024) |
| if support.verbose: |
| sys.stdout.write(" server: read %s from client\n" % repr(data)) |
| if not data: |
| self.close() |
| else: |
| self.send(data.lower()) |
| |
| def handle_close(self): |
| self.close() |
| if support.verbose: |
| sys.stdout.write(" server: closed connection %s\n" % self.socket) |
| |
| def handle_error(self): |
| raise |
| |
| def __init__(self, certfile): |
| self.certfile = certfile |
| sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| self.port = support.bind_port(sock, '') |
| asyncore.dispatcher.__init__(self, sock) |
| self.listen(5) |
| |
| def handle_accepted(self, sock_obj, addr): |
| if support.verbose: |
| sys.stdout.write(" server: new connection from %s:%s\n" %addr) |
| self.ConnectionHandler(sock_obj, self.certfile) |
| |
| def handle_error(self): |
| raise |
| |
| def __init__(self, certfile): |
| self.flag = None |
| self.active = False |
| self.server = self.EchoServer(certfile) |
| self.port = self.server.port |
| threading.Thread.__init__(self) |
| self.daemon = True |
| |
| def __str__(self): |
| return "<%s %s>" % (self.__class__.__name__, self.server) |
| |
| def start (self, flag=None): |
| self.flag = flag |
| threading.Thread.start(self) |
| |
| def run(self): |
| self.active = True |
| if self.flag: |
| self.flag.set() |
| while self.active: |
| try: |
| asyncore.loop(1) |
| except: |
| pass |
| |
| def stop(self): |
| self.active = False |
| self.server.close() |
| |
| def bad_cert_test(certfile): |
| """ |
| Launch a server with CERT_REQUIRED, and check that trying to |
| connect to it with the given client certificate fails. |
| """ |
| server = ThreadedEchoServer(CERTFILE, |
| certreqs=ssl.CERT_REQUIRED, |
| cacerts=CERTFILE, chatty=False, |
| connectionchatty=False) |
| flag = threading.Event() |
| server.start(flag) |
| # wait for it to start |
| flag.wait() |
| # try to connect |
| try: |
| try: |
| with socket.socket() as sock: |
| s = ssl.wrap_socket(sock, |
| certfile=certfile, |
| ssl_version=ssl.PROTOCOL_TLSv1) |
| s.connect((HOST, server.port)) |
| except ssl.SSLError as x: |
| if support.verbose: |
| sys.stdout.write("\nSSLError is %s\n" % x.args[1]) |
| except socket.error as x: |
| if support.verbose: |
| sys.stdout.write("\nsocket.error is %s\n" % x.args[1]) |
| except IOError as x: |
| if x.errno != errno.ENOENT: |
| raise |
| if support.verbose: |
| sys.stdout.write("\IOError is %s\n" % str(x)) |
| else: |
| raise AssertionError("Use of invalid cert should have failed!") |
| finally: |
| server.stop() |
| server.join() |
| |
| def server_params_test(client_context, server_context, indata=b"FOO\n", |
| chatty=True, connectionchatty=False): |
| """ |
| Launch a server, connect a client to it and try various reads |
| and writes. |
| """ |
| server = ThreadedEchoServer(context=server_context, |
| chatty=chatty, |
| connectionchatty=False) |
| flag = threading.Event() |
| server.start(flag) |
| # wait for it to start |
| flag.wait() |
| # try to connect |
| try: |
| s = client_context.wrap_socket(socket.socket()) |
| s.connect((HOST, server.port)) |
| for arg in [indata, bytearray(indata), memoryview(indata)]: |
| if connectionchatty: |
| if support.verbose: |
| sys.stdout.write( |
| " client: sending %r...\n" % indata) |
| s.write(arg) |
| outdata = s.read() |
| if connectionchatty: |
| if support.verbose: |
| sys.stdout.write(" client: read %r\n" % outdata) |
| if outdata != indata.lower(): |
| raise AssertionError( |
| "bad data <<%r>> (%d) received; expected <<%r>> (%d)\n" |
| % (outdata[:20], len(outdata), |
| indata[:20].lower(), len(indata))) |
| s.write(b"over\n") |
| if connectionchatty: |
| if support.verbose: |
| sys.stdout.write(" client: closing connection.\n") |
| s.close() |
| finally: |
| server.stop() |
| server.join() |
| |
| def try_protocol_combo(server_protocol, client_protocol, expect_success, |
| certsreqs=None, server_options=0, client_options=0): |
| if certsreqs is None: |
| certsreqs = ssl.CERT_NONE |
| certtype = { |
| ssl.CERT_NONE: "CERT_NONE", |
| ssl.CERT_OPTIONAL: "CERT_OPTIONAL", |
| ssl.CERT_REQUIRED: "CERT_REQUIRED", |
| }[certsreqs] |
| if support.verbose: |
| formatstr = (expect_success and " %s->%s %s\n") or " {%s->%s} %s\n" |
| sys.stdout.write(formatstr % |
| (ssl.get_protocol_name(client_protocol), |
| ssl.get_protocol_name(server_protocol), |
| certtype)) |
| client_context = ssl.SSLContext(client_protocol) |
| client_context.options = ssl.OP_ALL | client_options |
| server_context = ssl.SSLContext(server_protocol) |
| server_context.options = ssl.OP_ALL | server_options |
| for ctx in (client_context, server_context): |
| ctx.verify_mode = certsreqs |
| # NOTE: we must enable "ALL" ciphers, otherwise an SSLv23 client |
| # will send an SSLv3 hello (rather than SSLv2) starting from |
| # OpenSSL 1.0.0 (see issue #8322). |
| ctx.set_ciphers("ALL") |
| ctx.load_cert_chain(CERTFILE) |
| ctx.load_verify_locations(CERTFILE) |
| try: |
| server_params_test(client_context, server_context, |
| chatty=False, connectionchatty=False) |
| # Protocol mismatch can result in either an SSLError, or a |
| # "Connection reset by peer" error. |
| except ssl.SSLError: |
| if expect_success: |
| raise |
| except socket.error as e: |
| if expect_success or e.errno != errno.ECONNRESET: |
| raise |
| else: |
| if not expect_success: |
| raise AssertionError( |
| "Client protocol %s succeeded with server protocol %s!" |
| % (ssl.get_protocol_name(client_protocol), |
| ssl.get_protocol_name(server_protocol))) |
| |
| |
| class ThreadedTests(unittest.TestCase): |
| |
| @skip_if_broken_ubuntu_ssl |
| def test_echo(self): |
| """Basic test of an SSL client connecting to a server""" |
| if support.verbose: |
| sys.stdout.write("\n") |
| for protocol in PROTOCOLS: |
| context = ssl.SSLContext(protocol) |
| context.load_cert_chain(CERTFILE) |
| server_params_test(context, context, |
| chatty=True, connectionchatty=True) |
| |
| def test_getpeercert(self): |
| if support.verbose: |
| sys.stdout.write("\n") |
| context = ssl.SSLContext(ssl.PROTOCOL_SSLv23) |
| context.verify_mode = ssl.CERT_REQUIRED |
| context.load_verify_locations(CERTFILE) |
| context.load_cert_chain(CERTFILE) |
| server = ThreadedEchoServer(context=context, chatty=False) |
| flag = threading.Event() |
| server.start(flag) |
| # wait for it to start |
| flag.wait() |
| # try to connect |
| try: |
| s = context.wrap_socket(socket.socket()) |
| s.connect((HOST, server.port)) |
| cert = s.getpeercert() |
| self.assertTrue(cert, "Can't get peer certificate.") |
| cipher = s.cipher() |
| if support.verbose: |
| sys.stdout.write(pprint.pformat(cert) + '\n') |
| sys.stdout.write("Connection cipher is " + str(cipher) + '.\n') |
| if 'subject' not in cert: |
| self.fail("No subject field in certificate: %s." % |
| pprint.pformat(cert)) |
| if ((('organizationName', 'Python Software Foundation'),) |
| not in cert['subject']): |
| self.fail( |
| "Missing or invalid 'organizationName' field in certificate subject; " |
| "should be 'Python Software Foundation'.") |
| self.assertIn('notBefore', cert) |
| self.assertIn('notAfter', cert) |
| before = ssl.cert_time_to_seconds(cert['notBefore']) |
| after = ssl.cert_time_to_seconds(cert['notAfter']) |
| self.assertLess(before, after) |
| s.close() |
| finally: |
| server.stop() |
| server.join() |
| |
| def test_empty_cert(self): |
| """Connecting with an empty cert file""" |
| bad_cert_test(os.path.join(os.path.dirname(__file__) or os.curdir, |
| "nullcert.pem")) |
| def test_malformed_cert(self): |
| """Connecting with a badly formatted certificate (syntax error)""" |
| bad_cert_test(os.path.join(os.path.dirname(__file__) or os.curdir, |
| "badcert.pem")) |
| def test_nonexisting_cert(self): |
| """Connecting with a non-existing cert file""" |
| bad_cert_test(os.path.join(os.path.dirname(__file__) or os.curdir, |
| "wrongcert.pem")) |
| def test_malformed_key(self): |
| """Connecting with a badly formatted key (syntax error)""" |
| bad_cert_test(os.path.join(os.path.dirname(__file__) or os.curdir, |
| "badkey.pem")) |
| |
| def test_rude_shutdown(self): |
| """A brutal shutdown of an SSL server should raise an IOError |
| in the client when attempting handshake. |
| """ |
| listener_ready = threading.Event() |
| listener_gone = threading.Event() |
| |
| s = socket.socket() |
| port = support.bind_port(s, HOST) |
| |
| # `listener` runs in a thread. It sits in an accept() until |
| # the main thread connects. Then it rudely closes the socket, |
| # and sets Event `listener_gone` to let the main thread know |
| # the socket is gone. |
| def listener(): |
| s.listen(5) |
| listener_ready.set() |
| newsock, addr = s.accept() |
| newsock.close() |
| s.close() |
| listener_gone.set() |
| |
| def connector(): |
| listener_ready.wait() |
| with socket.socket() as c: |
| c.connect((HOST, port)) |
| listener_gone.wait() |
| try: |
| ssl_sock = ssl.wrap_socket(c) |
| except IOError: |
| pass |
| else: |
| self.fail('connecting to closed SSL socket should have failed') |
| |
| t = threading.Thread(target=listener) |
| t.start() |
| try: |
| connector() |
| finally: |
| t.join() |
| |
| @skip_if_broken_ubuntu_ssl |
| @unittest.skipUnless(hasattr(ssl, 'PROTOCOL_SSLv2'), "need SSLv2") |
| def test_protocol_sslv2(self): |
| """Connecting to an SSLv2 server with various client options""" |
| if support.verbose: |
| sys.stdout.write("\n") |
| try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv2, True) |
| try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv2, True, ssl.CERT_OPTIONAL) |
| try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv2, True, ssl.CERT_REQUIRED) |
| try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv23, True) |
| try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv3, False) |
| try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_TLSv1, False) |
| # SSLv23 client with specific SSL options |
| if no_sslv2_implies_sslv3_hello(): |
| # No SSLv2 => client will use an SSLv3 hello on recent OpenSSLs |
| try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv23, False, |
| client_options=ssl.OP_NO_SSLv2) |
| try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv23, True, |
| client_options=ssl.OP_NO_SSLv3) |
| try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv23, True, |
| client_options=ssl.OP_NO_TLSv1) |
| |
| @skip_if_broken_ubuntu_ssl |
| def test_protocol_sslv23(self): |
| """Connecting to an SSLv23 server with various client options""" |
| if support.verbose: |
| sys.stdout.write("\n") |
| if hasattr(ssl, 'PROTOCOL_SSLv2'): |
| try: |
| try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv2, True) |
| except (ssl.SSLError, socket.error) as x: |
| # this fails on some older versions of OpenSSL (0.9.7l, for instance) |
| if support.verbose: |
| sys.stdout.write( |
| " SSL2 client to SSL23 server test unexpectedly failed:\n %s\n" |
| % str(x)) |
| try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv3, True) |
| try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv23, True) |
| try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1, True) |
| |
| try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv3, True, ssl.CERT_OPTIONAL) |
| try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv23, True, ssl.CERT_OPTIONAL) |
| try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1, True, ssl.CERT_OPTIONAL) |
| |
| try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv3, True, ssl.CERT_REQUIRED) |
| try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv23, True, ssl.CERT_REQUIRED) |
| try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1, True, ssl.CERT_REQUIRED) |
| |
| # Server with specific SSL options |
| try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv3, False, |
| server_options=ssl.OP_NO_SSLv3) |
| # Will choose TLSv1 |
| try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv23, True, |
| server_options=ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3) |
| try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1, False, |
| server_options=ssl.OP_NO_TLSv1) |
| |
| |
| @skip_if_broken_ubuntu_ssl |
| def test_protocol_sslv3(self): |
| """Connecting to an SSLv3 server with various client options""" |
| if support.verbose: |
| sys.stdout.write("\n") |
| try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv3, True) |
| try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv3, True, ssl.CERT_OPTIONAL) |
| try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv3, True, ssl.CERT_REQUIRED) |
| if hasattr(ssl, 'PROTOCOL_SSLv2'): |
| try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv2, False) |
| try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv23, False, |
| client_options=ssl.OP_NO_SSLv3) |
| try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_TLSv1, False) |
| if no_sslv2_implies_sslv3_hello(): |
| # No SSLv2 => client will use an SSLv3 hello on recent OpenSSLs |
| try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv23, True, |
| client_options=ssl.OP_NO_SSLv2) |
| |
| @skip_if_broken_ubuntu_ssl |
| def test_protocol_tlsv1(self): |
| """Connecting to a TLSv1 server with various client options""" |
| if support.verbose: |
| sys.stdout.write("\n") |
| try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1, True) |
| try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1, True, ssl.CERT_OPTIONAL) |
| try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1, True, ssl.CERT_REQUIRED) |
| if hasattr(ssl, 'PROTOCOL_SSLv2'): |
| try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_SSLv2, False) |
| try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_SSLv3, False) |
| try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_SSLv23, False, |
| client_options=ssl.OP_NO_TLSv1) |
| |
| def test_starttls(self): |
| """Switching from clear text to encrypted and back again.""" |
| msgs = (b"msg 1", b"MSG 2", b"STARTTLS", b"MSG 3", b"msg 4", b"ENDTLS", b"msg 5", b"msg 6") |
| |
| server = ThreadedEchoServer(CERTFILE, |
| ssl_version=ssl.PROTOCOL_TLSv1, |
| starttls_server=True, |
| chatty=True, |
| connectionchatty=True) |
| flag = threading.Event() |
| server.start(flag) |
| # wait for it to start |
| flag.wait() |
| # try to connect |
| wrapped = False |
| try: |
| s = socket.socket() |
| s.setblocking(1) |
| s.connect((HOST, server.port)) |
| if support.verbose: |
| sys.stdout.write("\n") |
| for indata in msgs: |
| if support.verbose: |
| sys.stdout.write( |
| " client: sending %r...\n" % indata) |
| if wrapped: |
| conn.write(indata) |
| outdata = conn.read() |
| else: |
| s.send(indata) |
| outdata = s.recv(1024) |
| msg = outdata.strip().lower() |
| if indata == b"STARTTLS" and msg.startswith(b"ok"): |
| # STARTTLS ok, switch to secure mode |
| if support.verbose: |
| sys.stdout.write( |
| " client: read %r from server, starting TLS...\n" |
| % msg) |
| conn = ssl.wrap_socket(s, ssl_version=ssl.PROTOCOL_TLSv1) |
| wrapped = True |
| elif indata == b"ENDTLS" and msg.startswith(b"ok"): |
| # ENDTLS ok, switch back to clear text |
| if support.verbose: |
| sys.stdout.write( |
| " client: read %r from server, ending TLS...\n" |
| % msg) |
| s = conn.unwrap() |
| wrapped = False |
| else: |
| if support.verbose: |
| sys.stdout.write( |
| " client: read %r from server\n" % msg) |
| if support.verbose: |
| sys.stdout.write(" client: closing connection.\n") |
| if wrapped: |
| conn.write(b"over\n") |
| else: |
| s.send(b"over\n") |
| if wrapped: |
| conn.close() |
| else: |
| s.close() |
| finally: |
| server.stop() |
| server.join() |
| |
| def test_socketserver(self): |
| """Using a SocketServer to create and manage SSL connections.""" |
| server = make_https_server(self, CERTFILE) |
| # try to connect |
| if support.verbose: |
| sys.stdout.write('\n') |
| with open(CERTFILE, 'rb') as f: |
| d1 = f.read() |
| d2 = '' |
| # now fetch the same data from the HTTPS server |
| url = 'https://%s:%d/%s' % ( |
| HOST, server.port, os.path.split(CERTFILE)[1]) |
| f = urllib.request.urlopen(url) |
| try: |
| dlen = f.info().get("content-length") |
| if dlen and (int(dlen) > 0): |
| d2 = f.read(int(dlen)) |
| if support.verbose: |
| sys.stdout.write( |
| " client: read %d bytes from remote server '%s'\n" |
| % (len(d2), server)) |
| finally: |
| f.close() |
| self.assertEqual(d1, d2) |
| |
| def test_asyncore_server(self): |
| """Check the example asyncore integration.""" |
| indata = "TEST MESSAGE of mixed case\n" |
| |
| if support.verbose: |
| sys.stdout.write("\n") |
| |
| indata = b"FOO\n" |
| server = AsyncoreEchoServer(CERTFILE) |
| flag = threading.Event() |
| server.start(flag) |
| # wait for it to start |
| flag.wait() |
| # try to connect |
| try: |
| s = ssl.wrap_socket(socket.socket()) |
| s.connect(('127.0.0.1', server.port)) |
| if support.verbose: |
| sys.stdout.write( |
| " client: sending %r...\n" % indata) |
| s.write(indata) |
| outdata = s.read() |
| if support.verbose: |
| sys.stdout.write(" client: read %r\n" % outdata) |
| if outdata != indata.lower(): |
| self.fail( |
| "bad data <<%r>> (%d) received; expected <<%r>> (%d)\n" |
| % (outdata[:20], len(outdata), |
| indata[:20].lower(), len(indata))) |
| s.write(b"over\n") |
| if support.verbose: |
| sys.stdout.write(" client: closing connection.\n") |
| s.close() |
| if support.verbose: |
| sys.stdout.write(" client: connection closed.\n") |
| finally: |
| if support.verbose: |
| sys.stdout.write(" cleanup: stopping server.\n") |
| server.stop() |
| if support.verbose: |
| sys.stdout.write(" cleanup: joining server thread.\n") |
| server.join() |
| if support.verbose: |
| sys.stdout.write(" cleanup: successfully joined.\n") |
| |
| def test_recv_send(self): |
| """Test recv(), send() and friends.""" |
| if support.verbose: |
| sys.stdout.write("\n") |
| |
| server = ThreadedEchoServer(CERTFILE, |
| certreqs=ssl.CERT_NONE, |
| ssl_version=ssl.PROTOCOL_TLSv1, |
| cacerts=CERTFILE, |
| chatty=True, |
| connectionchatty=False) |
| flag = threading.Event() |
| server.start(flag) |
| # wait for it to start |
| flag.wait() |
| # try to connect |
| s = ssl.wrap_socket(socket.socket(), |
| server_side=False, |
| certfile=CERTFILE, |
| ca_certs=CERTFILE, |
| cert_reqs=ssl.CERT_NONE, |
| ssl_version=ssl.PROTOCOL_TLSv1) |
| s.connect((HOST, server.port)) |
| try: |
| # helper methods for standardising recv* method signatures |
| def _recv_into(): |
| b = bytearray(b"\0"*100) |
| count = s.recv_into(b) |
| return b[:count] |
| |
| def _recvfrom_into(): |
| b = bytearray(b"\0"*100) |
| count, addr = s.recvfrom_into(b) |
| return b[:count] |
| |
| # (name, method, whether to expect success, *args) |
| send_methods = [ |
| ('send', s.send, True, []), |
| ('sendto', s.sendto, False, ["some.address"]), |
| ('sendall', s.sendall, True, []), |
| ] |
| recv_methods = [ |
| ('recv', s.recv, True, []), |
| ('recvfrom', s.recvfrom, False, ["some.address"]), |
| ('recv_into', _recv_into, True, []), |
| ('recvfrom_into', _recvfrom_into, False, []), |
| ] |
| data_prefix = "PREFIX_" |
| |
| for meth_name, send_meth, expect_success, args in send_methods: |
| indata = (data_prefix + meth_name).encode('ascii') |
| try: |
| send_meth(indata, *args) |
| outdata = s.read() |
| if outdata != indata.lower(): |
| self.fail( |
| "While sending with <<{name:s}>> bad data " |
| "<<{outdata:r}>> ({nout:d}) received; " |
| "expected <<{indata:r}>> ({nin:d})\n".format( |
| name=meth_name, outdata=outdata[:20], |
| nout=len(outdata), |
| indata=indata[:20], nin=len(indata) |
| ) |
| ) |
| except ValueError as e: |
| if expect_success: |
| self.fail( |
| "Failed to send with method <<{name:s}>>; " |
| "expected to succeed.\n".format(name=meth_name) |
| ) |
| if not str(e).startswith(meth_name): |
| self.fail( |
| "Method <<{name:s}>> failed with unexpected " |
| "exception message: {exp:s}\n".format( |
| name=meth_name, exp=e |
| ) |
| ) |
| |
| for meth_name, recv_meth, expect_success, args in recv_methods: |
| indata = (data_prefix + meth_name).encode('ascii') |
| try: |
| s.send(indata) |
| outdata = recv_meth(*args) |
| if outdata != indata.lower(): |
| self.fail( |
| "While receiving with <<{name:s}>> bad data " |
| "<<{outdata:r}>> ({nout:d}) received; " |
| "expected <<{indata:r}>> ({nin:d})\n".format( |
| name=meth_name, outdata=outdata[:20], |
| nout=len(outdata), |
| indata=indata[:20], nin=len(indata) |
| ) |
| ) |
| except ValueError as e: |
| if expect_success: |
| self.fail( |
| "Failed to receive with method <<{name:s}>>; " |
| "expected to succeed.\n".format(name=meth_name) |
| ) |
| if not str(e).startswith(meth_name): |
| self.fail( |
| "Method <<{name:s}>> failed with unexpected " |
| "exception message: {exp:s}\n".format( |
| name=meth_name, exp=e |
| ) |
| ) |
| # consume data |
| s.read() |
| |
| s.write(b"over\n") |
| s.close() |
| finally: |
| server.stop() |
| server.join() |
| |
| def test_handshake_timeout(self): |
| # Issue #5103: SSL handshake must respect the socket timeout |
| server = socket.socket(socket.AF_INET) |
| host = "127.0.0.1" |
| port = support.bind_port(server) |
| started = threading.Event() |
| finish = False |
| |
| def serve(): |
| server.listen(5) |
| started.set() |
| conns = [] |
| while not finish: |
| r, w, e = select.select([server], [], [], 0.1) |
| if server in r: |
| # Let the socket hang around rather than having |
| # it closed by garbage collection. |
| conns.append(server.accept()[0]) |
| for sock in conns: |
| sock.close() |
| |
| t = threading.Thread(target=serve) |
| t.start() |
| started.wait() |
| |
| try: |
| try: |
| c = socket.socket(socket.AF_INET) |
| c.settimeout(0.2) |
| c.connect((host, port)) |
| # Will attempt handshake and time out |
| self.assertRaisesRegex(socket.timeout, "timed out", |
| ssl.wrap_socket, c) |
| finally: |
| c.close() |
| try: |
| c = socket.socket(socket.AF_INET) |
| c = ssl.wrap_socket(c) |
| c.settimeout(0.2) |
| # Will attempt handshake and time out |
| self.assertRaisesRegex(socket.timeout, "timed out", |
| c.connect, (host, port)) |
| finally: |
| c.close() |
| finally: |
| finish = True |
| t.join() |
| server.close() |
| |
| |
| def test_main(verbose=False): |
| if support.verbose: |
| plats = { |
| 'Linux': platform.linux_distribution, |
| 'Mac': platform.mac_ver, |
| 'Windows': platform.win32_ver, |
| } |
| for name, func in plats.items(): |
| plat = func() |
| if plat and plat[0]: |
| plat = '%s %r' % (name, plat) |
| break |
| else: |
| plat = repr(platform.platform()) |
| print("test_ssl: testing with %r %r" % |
| (ssl.OPENSSL_VERSION, ssl.OPENSSL_VERSION_INFO)) |
| print(" under %s" % plat) |
| print(" HAS_SNI = %r" % ssl.HAS_SNI) |
| |
| for filename in [ |
| CERTFILE, SVN_PYTHON_ORG_ROOT_CERT, BYTES_CERTFILE, |
| ONLYCERT, ONLYKEY, BYTES_ONLYCERT, BYTES_ONLYKEY, |
| BADCERT, BADKEY, EMPTYCERT]: |
| if not os.path.exists(filename): |
| raise support.TestFailed("Can't read certificate file %r" % filename) |
| |
| tests = [ContextTests, BasicSocketTests] |
| |
| if support.is_resource_enabled('network'): |
| tests.append(NetworkedTests) |
| |
| if _have_threads: |
| thread_info = support.threading_setup() |
| if thread_info and support.is_resource_enabled('network'): |
| tests.append(ThreadedTests) |
| |
| try: |
| support.run_unittest(*tests) |
| finally: |
| if _have_threads: |
| support.threading_cleanup(*thread_info) |
| |
| if __name__ == "__main__": |
| test_main() |