695 lines
23 KiB
Python
695 lines
23 KiB
Python
"""Tests for asyncio/sslproto.py."""
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import logging
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import socket
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import sys
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import unittest
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from unittest import mock
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try:
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import ssl
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except ImportError:
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ssl = None
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import asyncio
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from asyncio import log
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from asyncio import protocols
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from asyncio import sslproto
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from asyncio import tasks
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from test.test_asyncio import utils as test_utils
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from test.test_asyncio import functional as func_tests
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def tearDownModule():
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asyncio.set_event_loop_policy(None)
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@unittest.skipIf(ssl is None, 'No ssl module')
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class SslProtoHandshakeTests(test_utils.TestCase):
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def setUp(self):
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super().setUp()
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self.loop = asyncio.new_event_loop()
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self.set_event_loop(self.loop)
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def ssl_protocol(self, *, waiter=None, proto=None):
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sslcontext = test_utils.dummy_ssl_context()
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if proto is None: # app protocol
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proto = asyncio.Protocol()
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ssl_proto = sslproto.SSLProtocol(self.loop, proto, sslcontext, waiter,
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ssl_handshake_timeout=0.1)
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self.assertIs(ssl_proto._app_transport.get_protocol(), proto)
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self.addCleanup(ssl_proto._app_transport.close)
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return ssl_proto
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def connection_made(self, ssl_proto, *, do_handshake=None):
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transport = mock.Mock()
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sslpipe = mock.Mock()
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sslpipe.shutdown.return_value = b''
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if do_handshake:
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sslpipe.do_handshake.side_effect = do_handshake
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else:
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def mock_handshake(callback):
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return []
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sslpipe.do_handshake.side_effect = mock_handshake
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with mock.patch('asyncio.sslproto._SSLPipe', return_value=sslpipe):
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ssl_proto.connection_made(transport)
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return transport
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def test_handshake_timeout_zero(self):
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sslcontext = test_utils.dummy_ssl_context()
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app_proto = mock.Mock()
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waiter = mock.Mock()
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with self.assertRaisesRegex(ValueError, 'a positive number'):
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sslproto.SSLProtocol(self.loop, app_proto, sslcontext, waiter,
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ssl_handshake_timeout=0)
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def test_handshake_timeout_negative(self):
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sslcontext = test_utils.dummy_ssl_context()
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app_proto = mock.Mock()
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waiter = mock.Mock()
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with self.assertRaisesRegex(ValueError, 'a positive number'):
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sslproto.SSLProtocol(self.loop, app_proto, sslcontext, waiter,
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ssl_handshake_timeout=-10)
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def test_eof_received_waiter(self):
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waiter = asyncio.Future(loop=self.loop)
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ssl_proto = self.ssl_protocol(waiter=waiter)
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self.connection_made(ssl_proto)
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ssl_proto.eof_received()
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test_utils.run_briefly(self.loop)
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self.assertIsInstance(waiter.exception(), ConnectionResetError)
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def test_fatal_error_no_name_error(self):
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# From issue #363.
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# _fatal_error() generates a NameError if sslproto.py
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# does not import base_events.
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waiter = asyncio.Future(loop=self.loop)
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ssl_proto = self.ssl_protocol(waiter=waiter)
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# Temporarily turn off error logging so as not to spoil test output.
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log_level = log.logger.getEffectiveLevel()
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log.logger.setLevel(logging.FATAL)
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try:
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ssl_proto._fatal_error(None)
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finally:
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# Restore error logging.
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log.logger.setLevel(log_level)
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def test_connection_lost(self):
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# From issue #472.
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# yield from waiter hang if lost_connection was called.
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waiter = asyncio.Future(loop=self.loop)
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ssl_proto = self.ssl_protocol(waiter=waiter)
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self.connection_made(ssl_proto)
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ssl_proto.connection_lost(ConnectionAbortedError)
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test_utils.run_briefly(self.loop)
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self.assertIsInstance(waiter.exception(), ConnectionAbortedError)
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def test_close_during_handshake(self):
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# bpo-29743 Closing transport during handshake process leaks socket
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waiter = asyncio.Future(loop=self.loop)
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ssl_proto = self.ssl_protocol(waiter=waiter)
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transport = self.connection_made(ssl_proto)
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test_utils.run_briefly(self.loop)
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ssl_proto._app_transport.close()
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self.assertTrue(transport.abort.called)
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def test_get_extra_info_on_closed_connection(self):
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waiter = asyncio.Future(loop=self.loop)
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ssl_proto = self.ssl_protocol(waiter=waiter)
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self.assertIsNone(ssl_proto._get_extra_info('socket'))
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default = object()
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self.assertIs(ssl_proto._get_extra_info('socket', default), default)
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self.connection_made(ssl_proto)
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self.assertIsNotNone(ssl_proto._get_extra_info('socket'))
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ssl_proto.connection_lost(None)
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self.assertIsNone(ssl_proto._get_extra_info('socket'))
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def test_set_new_app_protocol(self):
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waiter = asyncio.Future(loop=self.loop)
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ssl_proto = self.ssl_protocol(waiter=waiter)
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new_app_proto = asyncio.Protocol()
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ssl_proto._app_transport.set_protocol(new_app_proto)
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self.assertIs(ssl_proto._app_transport.get_protocol(), new_app_proto)
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self.assertIs(ssl_proto._app_protocol, new_app_proto)
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def test_data_received_after_closing(self):
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ssl_proto = self.ssl_protocol()
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self.connection_made(ssl_proto)
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transp = ssl_proto._app_transport
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transp.close()
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# should not raise
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self.assertIsNone(ssl_proto.data_received(b'data'))
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def test_write_after_closing(self):
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ssl_proto = self.ssl_protocol()
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self.connection_made(ssl_proto)
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transp = ssl_proto._app_transport
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transp.close()
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# should not raise
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self.assertIsNone(transp.write(b'data'))
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##############################################################################
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# Start TLS Tests
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##############################################################################
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class BaseStartTLS(func_tests.FunctionalTestCaseMixin):
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PAYLOAD_SIZE = 1024 * 100
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TIMEOUT = 60
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def new_loop(self):
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raise NotImplementedError
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def test_buf_feed_data(self):
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class Proto(asyncio.BufferedProtocol):
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def __init__(self, bufsize, usemv):
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self.buf = bytearray(bufsize)
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self.mv = memoryview(self.buf)
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self.data = b''
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self.usemv = usemv
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def get_buffer(self, sizehint):
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if self.usemv:
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return self.mv
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else:
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return self.buf
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def buffer_updated(self, nsize):
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if self.usemv:
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self.data += self.mv[:nsize]
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else:
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self.data += self.buf[:nsize]
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for usemv in [False, True]:
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proto = Proto(1, usemv)
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protocols._feed_data_to_buffered_proto(proto, b'12345')
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self.assertEqual(proto.data, b'12345')
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proto = Proto(2, usemv)
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protocols._feed_data_to_buffered_proto(proto, b'12345')
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self.assertEqual(proto.data, b'12345')
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proto = Proto(2, usemv)
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protocols._feed_data_to_buffered_proto(proto, b'1234')
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self.assertEqual(proto.data, b'1234')
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proto = Proto(4, usemv)
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protocols._feed_data_to_buffered_proto(proto, b'1234')
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self.assertEqual(proto.data, b'1234')
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proto = Proto(100, usemv)
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protocols._feed_data_to_buffered_proto(proto, b'12345')
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self.assertEqual(proto.data, b'12345')
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proto = Proto(0, usemv)
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with self.assertRaisesRegex(RuntimeError, 'empty buffer'):
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protocols._feed_data_to_buffered_proto(proto, b'12345')
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def test_start_tls_client_reg_proto_1(self):
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HELLO_MSG = b'1' * self.PAYLOAD_SIZE
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server_context = test_utils.simple_server_sslcontext()
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client_context = test_utils.simple_client_sslcontext()
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def serve(sock):
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sock.settimeout(self.TIMEOUT)
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data = sock.recv_all(len(HELLO_MSG))
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self.assertEqual(len(data), len(HELLO_MSG))
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sock.start_tls(server_context, server_side=True)
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sock.sendall(b'O')
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data = sock.recv_all(len(HELLO_MSG))
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self.assertEqual(len(data), len(HELLO_MSG))
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sock.shutdown(socket.SHUT_RDWR)
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sock.close()
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class ClientProto(asyncio.Protocol):
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def __init__(self, on_data, on_eof):
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self.on_data = on_data
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self.on_eof = on_eof
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self.con_made_cnt = 0
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def connection_made(proto, tr):
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proto.con_made_cnt += 1
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# Ensure connection_made gets called only once.
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self.assertEqual(proto.con_made_cnt, 1)
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def data_received(self, data):
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self.on_data.set_result(data)
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def eof_received(self):
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self.on_eof.set_result(True)
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async def client(addr):
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await asyncio.sleep(0.5)
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on_data = self.loop.create_future()
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on_eof = self.loop.create_future()
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tr, proto = await self.loop.create_connection(
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lambda: ClientProto(on_data, on_eof), *addr)
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tr.write(HELLO_MSG)
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new_tr = await self.loop.start_tls(tr, proto, client_context)
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self.assertEqual(await on_data, b'O')
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new_tr.write(HELLO_MSG)
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await on_eof
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new_tr.close()
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with self.tcp_server(serve, timeout=self.TIMEOUT) as srv:
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self.loop.run_until_complete(
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asyncio.wait_for(client(srv.addr), timeout=10))
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def test_start_tls_client_buf_proto_1(self):
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HELLO_MSG = b'1' * self.PAYLOAD_SIZE
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server_context = test_utils.simple_server_sslcontext()
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client_context = test_utils.simple_client_sslcontext()
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client_con_made_calls = 0
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def serve(sock):
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sock.settimeout(self.TIMEOUT)
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data = sock.recv_all(len(HELLO_MSG))
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self.assertEqual(len(data), len(HELLO_MSG))
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sock.start_tls(server_context, server_side=True)
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sock.sendall(b'O')
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data = sock.recv_all(len(HELLO_MSG))
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self.assertEqual(len(data), len(HELLO_MSG))
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sock.sendall(b'2')
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data = sock.recv_all(len(HELLO_MSG))
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self.assertEqual(len(data), len(HELLO_MSG))
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sock.shutdown(socket.SHUT_RDWR)
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sock.close()
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class ClientProtoFirst(asyncio.BufferedProtocol):
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def __init__(self, on_data):
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self.on_data = on_data
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self.buf = bytearray(1)
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def connection_made(self, tr):
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nonlocal client_con_made_calls
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client_con_made_calls += 1
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def get_buffer(self, sizehint):
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return self.buf
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def buffer_updated(self, nsize):
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assert nsize == 1
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self.on_data.set_result(bytes(self.buf[:nsize]))
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class ClientProtoSecond(asyncio.Protocol):
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def __init__(self, on_data, on_eof):
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self.on_data = on_data
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self.on_eof = on_eof
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self.con_made_cnt = 0
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def connection_made(self, tr):
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nonlocal client_con_made_calls
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client_con_made_calls += 1
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def data_received(self, data):
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self.on_data.set_result(data)
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def eof_received(self):
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self.on_eof.set_result(True)
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async def client(addr):
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await asyncio.sleep(0.5)
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on_data1 = self.loop.create_future()
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on_data2 = self.loop.create_future()
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on_eof = self.loop.create_future()
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tr, proto = await self.loop.create_connection(
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lambda: ClientProtoFirst(on_data1), *addr)
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tr.write(HELLO_MSG)
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new_tr = await self.loop.start_tls(tr, proto, client_context)
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self.assertEqual(await on_data1, b'O')
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new_tr.write(HELLO_MSG)
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new_tr.set_protocol(ClientProtoSecond(on_data2, on_eof))
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self.assertEqual(await on_data2, b'2')
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new_tr.write(HELLO_MSG)
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await on_eof
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new_tr.close()
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# connection_made() should be called only once -- when
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# we establish connection for the first time. Start TLS
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# doesn't call connection_made() on application protocols.
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self.assertEqual(client_con_made_calls, 1)
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with self.tcp_server(serve, timeout=self.TIMEOUT) as srv:
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self.loop.run_until_complete(
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asyncio.wait_for(client(srv.addr),
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timeout=self.TIMEOUT))
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def test_start_tls_slow_client_cancel(self):
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HELLO_MSG = b'1' * self.PAYLOAD_SIZE
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client_context = test_utils.simple_client_sslcontext()
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server_waits_on_handshake = self.loop.create_future()
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def serve(sock):
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sock.settimeout(self.TIMEOUT)
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data = sock.recv_all(len(HELLO_MSG))
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self.assertEqual(len(data), len(HELLO_MSG))
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try:
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self.loop.call_soon_threadsafe(
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server_waits_on_handshake.set_result, None)
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data = sock.recv_all(1024 * 1024)
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except ConnectionAbortedError:
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pass
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finally:
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sock.close()
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class ClientProto(asyncio.Protocol):
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def __init__(self, on_data, on_eof):
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self.on_data = on_data
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self.on_eof = on_eof
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self.con_made_cnt = 0
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def connection_made(proto, tr):
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proto.con_made_cnt += 1
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# Ensure connection_made gets called only once.
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self.assertEqual(proto.con_made_cnt, 1)
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def data_received(self, data):
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self.on_data.set_result(data)
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def eof_received(self):
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self.on_eof.set_result(True)
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async def client(addr):
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await asyncio.sleep(0.5)
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on_data = self.loop.create_future()
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on_eof = self.loop.create_future()
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tr, proto = await self.loop.create_connection(
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lambda: ClientProto(on_data, on_eof), *addr)
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tr.write(HELLO_MSG)
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await server_waits_on_handshake
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with self.assertRaises(asyncio.TimeoutError):
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await asyncio.wait_for(
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self.loop.start_tls(tr, proto, client_context),
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0.5)
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with self.tcp_server(serve, timeout=self.TIMEOUT) as srv:
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self.loop.run_until_complete(
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asyncio.wait_for(client(srv.addr), timeout=10))
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def test_start_tls_server_1(self):
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HELLO_MSG = b'1' * self.PAYLOAD_SIZE
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server_context = test_utils.simple_server_sslcontext()
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client_context = test_utils.simple_client_sslcontext()
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if sys.platform.startswith('freebsd'):
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# bpo-35031: Some FreeBSD buildbots fail to run this test
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# as the eof was not being received by the server if the payload
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# size is not big enough. This behaviour only appears if the
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# client is using TLS1.3.
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client_context.options |= ssl.OP_NO_TLSv1_3
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def client(sock, addr):
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sock.settimeout(self.TIMEOUT)
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sock.connect(addr)
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data = sock.recv_all(len(HELLO_MSG))
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self.assertEqual(len(data), len(HELLO_MSG))
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sock.start_tls(client_context)
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sock.sendall(HELLO_MSG)
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sock.shutdown(socket.SHUT_RDWR)
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sock.close()
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class ServerProto(asyncio.Protocol):
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def __init__(self, on_con, on_eof, on_con_lost):
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self.on_con = on_con
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self.on_eof = on_eof
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self.on_con_lost = on_con_lost
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self.data = b''
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def connection_made(self, tr):
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self.on_con.set_result(tr)
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def data_received(self, data):
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self.data += data
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def eof_received(self):
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self.on_eof.set_result(1)
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def connection_lost(self, exc):
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if exc is None:
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self.on_con_lost.set_result(None)
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else:
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self.on_con_lost.set_exception(exc)
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async def main(proto, on_con, on_eof, on_con_lost):
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tr = await on_con
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tr.write(HELLO_MSG)
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self.assertEqual(proto.data, b'')
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new_tr = await self.loop.start_tls(
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tr, proto, server_context,
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server_side=True,
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ssl_handshake_timeout=self.TIMEOUT)
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await on_eof
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await on_con_lost
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self.assertEqual(proto.data, HELLO_MSG)
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new_tr.close()
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async def run_main():
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on_con = self.loop.create_future()
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on_eof = self.loop.create_future()
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on_con_lost = self.loop.create_future()
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proto = ServerProto(on_con, on_eof, on_con_lost)
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server = await self.loop.create_server(
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lambda: proto, '127.0.0.1', 0)
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addr = server.sockets[0].getsockname()
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with self.tcp_client(lambda sock: client(sock, addr),
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timeout=self.TIMEOUT):
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await asyncio.wait_for(
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main(proto, on_con, on_eof, on_con_lost),
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timeout=self.TIMEOUT)
|
|
|
|
server.close()
|
|
await server.wait_closed()
|
|
|
|
self.loop.run_until_complete(run_main())
|
|
|
|
def test_start_tls_wrong_args(self):
|
|
async def main():
|
|
with self.assertRaisesRegex(TypeError, 'SSLContext, got'):
|
|
await self.loop.start_tls(None, None, None)
|
|
|
|
sslctx = test_utils.simple_server_sslcontext()
|
|
with self.assertRaisesRegex(TypeError, 'is not supported'):
|
|
await self.loop.start_tls(None, None, sslctx)
|
|
|
|
self.loop.run_until_complete(main())
|
|
|
|
def test_handshake_timeout(self):
|
|
# bpo-29970: Check that a connection is aborted if handshake is not
|
|
# completed in timeout period, instead of remaining open indefinitely
|
|
client_sslctx = test_utils.simple_client_sslcontext()
|
|
|
|
messages = []
|
|
self.loop.set_exception_handler(lambda loop, ctx: messages.append(ctx))
|
|
|
|
server_side_aborted = False
|
|
|
|
def server(sock):
|
|
nonlocal server_side_aborted
|
|
try:
|
|
sock.recv_all(1024 * 1024)
|
|
except ConnectionAbortedError:
|
|
server_side_aborted = True
|
|
finally:
|
|
sock.close()
|
|
|
|
async def client(addr):
|
|
await asyncio.wait_for(
|
|
self.loop.create_connection(
|
|
asyncio.Protocol,
|
|
*addr,
|
|
ssl=client_sslctx,
|
|
server_hostname='',
|
|
ssl_handshake_timeout=10.0),
|
|
0.5)
|
|
|
|
with self.tcp_server(server,
|
|
max_clients=1,
|
|
backlog=1) as srv:
|
|
|
|
with self.assertRaises(asyncio.TimeoutError):
|
|
self.loop.run_until_complete(client(srv.addr))
|
|
|
|
self.assertTrue(server_side_aborted)
|
|
|
|
# Python issue #23197: cancelling a handshake must not raise an
|
|
# exception or log an error, even if the handshake failed
|
|
self.assertEqual(messages, [])
|
|
|
|
def test_create_connection_ssl_slow_handshake(self):
|
|
client_sslctx = test_utils.simple_client_sslcontext()
|
|
|
|
messages = []
|
|
self.loop.set_exception_handler(lambda loop, ctx: messages.append(ctx))
|
|
|
|
def server(sock):
|
|
try:
|
|
sock.recv_all(1024 * 1024)
|
|
except ConnectionAbortedError:
|
|
pass
|
|
finally:
|
|
sock.close()
|
|
|
|
async def client(addr):
|
|
reader, writer = await asyncio.open_connection(
|
|
*addr,
|
|
ssl=client_sslctx,
|
|
server_hostname='',
|
|
loop=self.loop,
|
|
ssl_handshake_timeout=1.0)
|
|
|
|
with self.tcp_server(server,
|
|
max_clients=1,
|
|
backlog=1) as srv:
|
|
|
|
with self.assertRaisesRegex(
|
|
ConnectionAbortedError,
|
|
r'SSL handshake.*is taking longer'):
|
|
|
|
self.loop.run_until_complete(client(srv.addr))
|
|
|
|
self.assertEqual(messages, [])
|
|
|
|
def test_create_connection_ssl_failed_certificate(self):
|
|
self.loop.set_exception_handler(lambda loop, ctx: None)
|
|
|
|
sslctx = test_utils.simple_server_sslcontext()
|
|
client_sslctx = test_utils.simple_client_sslcontext(
|
|
disable_verify=False)
|
|
|
|
def server(sock):
|
|
try:
|
|
sock.start_tls(
|
|
sslctx,
|
|
server_side=True)
|
|
except ssl.SSLError:
|
|
pass
|
|
except OSError:
|
|
pass
|
|
finally:
|
|
sock.close()
|
|
|
|
async def client(addr):
|
|
reader, writer = await asyncio.open_connection(
|
|
*addr,
|
|
ssl=client_sslctx,
|
|
server_hostname='',
|
|
loop=self.loop,
|
|
ssl_handshake_timeout=1.0)
|
|
|
|
with self.tcp_server(server,
|
|
max_clients=1,
|
|
backlog=1) as srv:
|
|
|
|
with self.assertRaises(ssl.SSLCertVerificationError):
|
|
self.loop.run_until_complete(client(srv.addr))
|
|
|
|
def test_start_tls_client_corrupted_ssl(self):
|
|
self.loop.set_exception_handler(lambda loop, ctx: None)
|
|
|
|
sslctx = test_utils.simple_server_sslcontext()
|
|
client_sslctx = test_utils.simple_client_sslcontext()
|
|
|
|
def server(sock):
|
|
orig_sock = sock.dup()
|
|
try:
|
|
sock.start_tls(
|
|
sslctx,
|
|
server_side=True)
|
|
sock.sendall(b'A\n')
|
|
sock.recv_all(1)
|
|
orig_sock.send(b'please corrupt the SSL connection')
|
|
except ssl.SSLError:
|
|
pass
|
|
finally:
|
|
orig_sock.close()
|
|
sock.close()
|
|
|
|
async def client(addr):
|
|
reader, writer = await asyncio.open_connection(
|
|
*addr,
|
|
ssl=client_sslctx,
|
|
server_hostname='',
|
|
loop=self.loop)
|
|
|
|
self.assertEqual(await reader.readline(), b'A\n')
|
|
writer.write(b'B')
|
|
with self.assertRaises(ssl.SSLError):
|
|
await reader.readline()
|
|
|
|
writer.close()
|
|
return 'OK'
|
|
|
|
with self.tcp_server(server,
|
|
max_clients=1,
|
|
backlog=1) as srv:
|
|
|
|
res = self.loop.run_until_complete(client(srv.addr))
|
|
|
|
self.assertEqual(res, 'OK')
|
|
|
|
|
|
@unittest.skipIf(ssl is None, 'No ssl module')
|
|
class SelectorStartTLSTests(BaseStartTLS, unittest.TestCase):
|
|
|
|
def new_loop(self):
|
|
return asyncio.SelectorEventLoop()
|
|
|
|
|
|
@unittest.skipIf(ssl is None, 'No ssl module')
|
|
@unittest.skipUnless(hasattr(asyncio, 'ProactorEventLoop'), 'Windows only')
|
|
class ProactorStartTLSTests(BaseStartTLS, unittest.TestCase):
|
|
|
|
def new_loop(self):
|
|
return asyncio.ProactorEventLoop()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|