270 lines
7.3 KiB
Python
270 lines
7.3 KiB
Python
import asyncio
|
|
import asyncio.events
|
|
import contextlib
|
|
import os
|
|
import pprint
|
|
import select
|
|
import socket
|
|
import tempfile
|
|
import threading
|
|
from test import support
|
|
|
|
|
|
class FunctionalTestCaseMixin:
|
|
|
|
def new_loop(self):
|
|
return asyncio.new_event_loop()
|
|
|
|
def run_loop_briefly(self, *, delay=0.01):
|
|
self.loop.run_until_complete(asyncio.sleep(delay))
|
|
|
|
def loop_exception_handler(self, loop, context):
|
|
self.__unhandled_exceptions.append(context)
|
|
self.loop.default_exception_handler(context)
|
|
|
|
def setUp(self):
|
|
self.loop = self.new_loop()
|
|
asyncio.set_event_loop(None)
|
|
|
|
self.loop.set_exception_handler(self.loop_exception_handler)
|
|
self.__unhandled_exceptions = []
|
|
|
|
def tearDown(self):
|
|
try:
|
|
self.loop.close()
|
|
|
|
if self.__unhandled_exceptions:
|
|
print('Unexpected calls to loop.call_exception_handler():')
|
|
pprint.pprint(self.__unhandled_exceptions)
|
|
self.fail('unexpected calls to loop.call_exception_handler()')
|
|
|
|
finally:
|
|
asyncio.set_event_loop(None)
|
|
self.loop = None
|
|
|
|
def tcp_server(self, server_prog, *,
|
|
family=socket.AF_INET,
|
|
addr=None,
|
|
timeout=support.LOOPBACK_TIMEOUT,
|
|
backlog=1,
|
|
max_clients=10):
|
|
|
|
if addr is None:
|
|
if hasattr(socket, 'AF_UNIX') and family == socket.AF_UNIX:
|
|
with tempfile.NamedTemporaryFile() as tmp:
|
|
addr = tmp.name
|
|
else:
|
|
addr = ('127.0.0.1', 0)
|
|
|
|
sock = socket.create_server(addr, family=family, backlog=backlog)
|
|
if timeout is None:
|
|
raise RuntimeError('timeout is required')
|
|
if timeout <= 0:
|
|
raise RuntimeError('only blocking sockets are supported')
|
|
sock.settimeout(timeout)
|
|
|
|
return TestThreadedServer(
|
|
self, sock, server_prog, timeout, max_clients)
|
|
|
|
def tcp_client(self, client_prog,
|
|
family=socket.AF_INET,
|
|
timeout=support.LOOPBACK_TIMEOUT):
|
|
|
|
sock = socket.socket(family, socket.SOCK_STREAM)
|
|
|
|
if timeout is None:
|
|
raise RuntimeError('timeout is required')
|
|
if timeout <= 0:
|
|
raise RuntimeError('only blocking sockets are supported')
|
|
sock.settimeout(timeout)
|
|
|
|
return TestThreadedClient(
|
|
self, sock, client_prog, timeout)
|
|
|
|
def unix_server(self, *args, **kwargs):
|
|
if not hasattr(socket, 'AF_UNIX'):
|
|
raise NotImplementedError
|
|
return self.tcp_server(*args, family=socket.AF_UNIX, **kwargs)
|
|
|
|
def unix_client(self, *args, **kwargs):
|
|
if not hasattr(socket, 'AF_UNIX'):
|
|
raise NotImplementedError
|
|
return self.tcp_client(*args, family=socket.AF_UNIX, **kwargs)
|
|
|
|
@contextlib.contextmanager
|
|
def unix_sock_name(self):
|
|
with tempfile.TemporaryDirectory() as td:
|
|
fn = os.path.join(td, 'sock')
|
|
try:
|
|
yield fn
|
|
finally:
|
|
try:
|
|
os.unlink(fn)
|
|
except OSError:
|
|
pass
|
|
|
|
def _abort_socket_test(self, ex):
|
|
try:
|
|
self.loop.stop()
|
|
finally:
|
|
self.fail(ex)
|
|
|
|
|
|
##############################################################################
|
|
# Socket Testing Utilities
|
|
##############################################################################
|
|
|
|
|
|
class TestSocketWrapper:
|
|
|
|
def __init__(self, sock):
|
|
self.__sock = sock
|
|
|
|
def recv_all(self, n):
|
|
buf = b''
|
|
while len(buf) < n:
|
|
data = self.recv(n - len(buf))
|
|
if data == b'':
|
|
raise ConnectionAbortedError
|
|
buf += data
|
|
return buf
|
|
|
|
def start_tls(self, ssl_context, *,
|
|
server_side=False,
|
|
server_hostname=None):
|
|
|
|
ssl_sock = ssl_context.wrap_socket(
|
|
self.__sock, server_side=server_side,
|
|
server_hostname=server_hostname,
|
|
do_handshake_on_connect=False)
|
|
|
|
try:
|
|
ssl_sock.do_handshake()
|
|
except:
|
|
ssl_sock.close()
|
|
raise
|
|
finally:
|
|
self.__sock.close()
|
|
|
|
self.__sock = ssl_sock
|
|
|
|
def __getattr__(self, name):
|
|
return getattr(self.__sock, name)
|
|
|
|
def __repr__(self):
|
|
return '<{} {!r}>'.format(type(self).__name__, self.__sock)
|
|
|
|
|
|
class SocketThread(threading.Thread):
|
|
|
|
def stop(self):
|
|
self._active = False
|
|
self.join()
|
|
|
|
def __enter__(self):
|
|
self.start()
|
|
return self
|
|
|
|
def __exit__(self, *exc):
|
|
self.stop()
|
|
|
|
|
|
class TestThreadedClient(SocketThread):
|
|
|
|
def __init__(self, test, sock, prog, timeout):
|
|
threading.Thread.__init__(self, None, None, 'test-client')
|
|
self.daemon = True
|
|
|
|
self._timeout = timeout
|
|
self._sock = sock
|
|
self._active = True
|
|
self._prog = prog
|
|
self._test = test
|
|
|
|
def run(self):
|
|
try:
|
|
self._prog(TestSocketWrapper(self._sock))
|
|
except Exception as ex:
|
|
self._test._abort_socket_test(ex)
|
|
|
|
|
|
class TestThreadedServer(SocketThread):
|
|
|
|
def __init__(self, test, sock, prog, timeout, max_clients):
|
|
threading.Thread.__init__(self, None, None, 'test-server')
|
|
self.daemon = True
|
|
|
|
self._clients = 0
|
|
self._finished_clients = 0
|
|
self._max_clients = max_clients
|
|
self._timeout = timeout
|
|
self._sock = sock
|
|
self._active = True
|
|
|
|
self._prog = prog
|
|
|
|
self._s1, self._s2 = socket.socketpair()
|
|
self._s1.setblocking(False)
|
|
|
|
self._test = test
|
|
|
|
def stop(self):
|
|
try:
|
|
if self._s2 and self._s2.fileno() != -1:
|
|
try:
|
|
self._s2.send(b'stop')
|
|
except OSError:
|
|
pass
|
|
finally:
|
|
super().stop()
|
|
|
|
def run(self):
|
|
try:
|
|
with self._sock:
|
|
self._sock.setblocking(False)
|
|
self._run()
|
|
finally:
|
|
self._s1.close()
|
|
self._s2.close()
|
|
|
|
def _run(self):
|
|
while self._active:
|
|
if self._clients >= self._max_clients:
|
|
return
|
|
|
|
r, w, x = select.select(
|
|
[self._sock, self._s1], [], [], self._timeout)
|
|
|
|
if self._s1 in r:
|
|
return
|
|
|
|
if self._sock in r:
|
|
try:
|
|
conn, addr = self._sock.accept()
|
|
except BlockingIOError:
|
|
continue
|
|
except socket.timeout:
|
|
if not self._active:
|
|
return
|
|
else:
|
|
raise
|
|
else:
|
|
self._clients += 1
|
|
conn.settimeout(self._timeout)
|
|
try:
|
|
with conn:
|
|
self._handle_client(conn)
|
|
except Exception as ex:
|
|
self._active = False
|
|
try:
|
|
raise
|
|
finally:
|
|
self._test._abort_socket_test(ex)
|
|
|
|
def _handle_client(self, sock):
|
|
self._prog(TestSocketWrapper(sock))
|
|
|
|
@property
|
|
def addr(self):
|
|
return self._sock.getsockname()
|