323 lines
10 KiB
Python
323 lines
10 KiB
Python
"""
|
|
Test suite for socketserver.
|
|
"""
|
|
|
|
import contextlib
|
|
import os
|
|
import select
|
|
import signal
|
|
import socket
|
|
import select
|
|
import errno
|
|
import tempfile
|
|
import unittest
|
|
import socketserver
|
|
|
|
import test.support
|
|
from test.support import reap_children, reap_threads, verbose
|
|
try:
|
|
import threading
|
|
except ImportError:
|
|
threading = None
|
|
|
|
test.support.requires("network")
|
|
|
|
TEST_STR = b"hello world\n"
|
|
HOST = test.support.HOST
|
|
|
|
HAVE_UNIX_SOCKETS = hasattr(socket, "AF_UNIX")
|
|
requires_unix_sockets = unittest.skipUnless(HAVE_UNIX_SOCKETS,
|
|
'requires Unix sockets')
|
|
HAVE_FORKING = hasattr(os, "fork")
|
|
requires_forking = unittest.skipUnless(HAVE_FORKING, 'requires forking')
|
|
|
|
def signal_alarm(n):
|
|
"""Call signal.alarm when it exists (i.e. not on Windows)."""
|
|
if hasattr(signal, 'alarm'):
|
|
signal.alarm(n)
|
|
|
|
# Remember real select() to avoid interferences with mocking
|
|
_real_select = select.select
|
|
|
|
def receive(sock, n, timeout=20):
|
|
r, w, x = _real_select([sock], [], [], timeout)
|
|
if sock in r:
|
|
return sock.recv(n)
|
|
else:
|
|
raise RuntimeError("timed out on %r" % (sock,))
|
|
|
|
if HAVE_UNIX_SOCKETS:
|
|
class ForkingUnixStreamServer(socketserver.ForkingMixIn,
|
|
socketserver.UnixStreamServer):
|
|
pass
|
|
|
|
class ForkingUnixDatagramServer(socketserver.ForkingMixIn,
|
|
socketserver.UnixDatagramServer):
|
|
pass
|
|
|
|
|
|
@contextlib.contextmanager
|
|
def simple_subprocess(testcase):
|
|
pid = os.fork()
|
|
if pid == 0:
|
|
# Don't raise an exception; it would be caught by the test harness.
|
|
os._exit(72)
|
|
yield None
|
|
pid2, status = os.waitpid(pid, 0)
|
|
testcase.assertEqual(pid2, pid)
|
|
testcase.assertEqual(72 << 8, status)
|
|
|
|
|
|
@unittest.skipUnless(threading, 'Threading required for this test.')
|
|
class SocketServerTest(unittest.TestCase):
|
|
"""Test all socket servers."""
|
|
|
|
def setUp(self):
|
|
signal_alarm(60) # Kill deadlocks after 60 seconds.
|
|
self.port_seed = 0
|
|
self.test_files = []
|
|
|
|
def tearDown(self):
|
|
signal_alarm(0) # Didn't deadlock.
|
|
reap_children()
|
|
|
|
for fn in self.test_files:
|
|
try:
|
|
os.remove(fn)
|
|
except OSError:
|
|
pass
|
|
self.test_files[:] = []
|
|
|
|
def pickaddr(self, proto):
|
|
if proto == socket.AF_INET:
|
|
return (HOST, 0)
|
|
else:
|
|
# XXX: We need a way to tell AF_UNIX to pick its own name
|
|
# like AF_INET provides port==0.
|
|
dir = None
|
|
fn = tempfile.mktemp(prefix='unix_socket.', dir=dir)
|
|
self.test_files.append(fn)
|
|
return fn
|
|
|
|
def make_server(self, addr, svrcls, hdlrbase):
|
|
class MyServer(svrcls):
|
|
def handle_error(self, request, client_address):
|
|
self.close_request(request)
|
|
self.server_close()
|
|
raise
|
|
|
|
class MyHandler(hdlrbase):
|
|
def handle(self):
|
|
line = self.rfile.readline()
|
|
self.wfile.write(line)
|
|
|
|
if verbose: print("creating server")
|
|
server = MyServer(addr, MyHandler)
|
|
self.assertEqual(server.server_address, server.socket.getsockname())
|
|
return server
|
|
|
|
@reap_threads
|
|
def run_server(self, svrcls, hdlrbase, testfunc):
|
|
server = self.make_server(self.pickaddr(svrcls.address_family),
|
|
svrcls, hdlrbase)
|
|
# We had the OS pick a port, so pull the real address out of
|
|
# the server.
|
|
addr = server.server_address
|
|
if verbose:
|
|
print("ADDR =", addr)
|
|
print("CLASS =", svrcls)
|
|
|
|
t = threading.Thread(
|
|
name='%s serving' % svrcls,
|
|
target=server.serve_forever,
|
|
# Short poll interval to make the test finish quickly.
|
|
# Time between requests is short enough that we won't wake
|
|
# up spuriously too many times.
|
|
kwargs={'poll_interval':0.01})
|
|
t.daemon = True # In case this function raises.
|
|
t.start()
|
|
if verbose: print("server running")
|
|
for i in range(3):
|
|
if verbose: print("test client", i)
|
|
testfunc(svrcls.address_family, addr)
|
|
if verbose: print("waiting for server")
|
|
server.shutdown()
|
|
t.join()
|
|
server.server_close()
|
|
self.assertEqual(-1, server.socket.fileno())
|
|
if verbose: print("done")
|
|
|
|
def stream_examine(self, proto, addr):
|
|
s = socket.socket(proto, socket.SOCK_STREAM)
|
|
s.connect(addr)
|
|
s.sendall(TEST_STR)
|
|
buf = data = receive(s, 100)
|
|
while data and b'\n' not in buf:
|
|
data = receive(s, 100)
|
|
buf += data
|
|
self.assertEqual(buf, TEST_STR)
|
|
s.close()
|
|
|
|
def dgram_examine(self, proto, addr):
|
|
s = socket.socket(proto, socket.SOCK_DGRAM)
|
|
s.sendto(TEST_STR, addr)
|
|
buf = data = receive(s, 100)
|
|
while data and b'\n' not in buf:
|
|
data = receive(s, 100)
|
|
buf += data
|
|
self.assertEqual(buf, TEST_STR)
|
|
s.close()
|
|
|
|
def test_TCPServer(self):
|
|
self.run_server(socketserver.TCPServer,
|
|
socketserver.StreamRequestHandler,
|
|
self.stream_examine)
|
|
|
|
def test_ThreadingTCPServer(self):
|
|
self.run_server(socketserver.ThreadingTCPServer,
|
|
socketserver.StreamRequestHandler,
|
|
self.stream_examine)
|
|
|
|
@requires_forking
|
|
def test_ForkingTCPServer(self):
|
|
with simple_subprocess(self):
|
|
self.run_server(socketserver.ForkingTCPServer,
|
|
socketserver.StreamRequestHandler,
|
|
self.stream_examine)
|
|
|
|
@requires_unix_sockets
|
|
def test_UnixStreamServer(self):
|
|
self.run_server(socketserver.UnixStreamServer,
|
|
socketserver.StreamRequestHandler,
|
|
self.stream_examine)
|
|
|
|
@requires_unix_sockets
|
|
def test_ThreadingUnixStreamServer(self):
|
|
self.run_server(socketserver.ThreadingUnixStreamServer,
|
|
socketserver.StreamRequestHandler,
|
|
self.stream_examine)
|
|
|
|
@requires_unix_sockets
|
|
@requires_forking
|
|
def test_ForkingUnixStreamServer(self):
|
|
with simple_subprocess(self):
|
|
self.run_server(ForkingUnixStreamServer,
|
|
socketserver.StreamRequestHandler,
|
|
self.stream_examine)
|
|
|
|
def test_UDPServer(self):
|
|
self.run_server(socketserver.UDPServer,
|
|
socketserver.DatagramRequestHandler,
|
|
self.dgram_examine)
|
|
|
|
def test_ThreadingUDPServer(self):
|
|
self.run_server(socketserver.ThreadingUDPServer,
|
|
socketserver.DatagramRequestHandler,
|
|
self.dgram_examine)
|
|
|
|
@requires_forking
|
|
def test_ForkingUDPServer(self):
|
|
with simple_subprocess(self):
|
|
self.run_server(socketserver.ForkingUDPServer,
|
|
socketserver.DatagramRequestHandler,
|
|
self.dgram_examine)
|
|
|
|
# Alas, on Linux (at least) recvfrom() doesn't return a meaningful
|
|
# client address so this cannot work:
|
|
|
|
# @requires_unix_sockets
|
|
# def test_UnixDatagramServer(self):
|
|
# self.run_server(socketserver.UnixDatagramServer,
|
|
# socketserver.DatagramRequestHandler,
|
|
# self.dgram_examine)
|
|
#
|
|
# @requires_unix_sockets
|
|
# def test_ThreadingUnixDatagramServer(self):
|
|
# self.run_server(socketserver.ThreadingUnixDatagramServer,
|
|
# socketserver.DatagramRequestHandler,
|
|
# self.dgram_examine)
|
|
#
|
|
# @requires_unix_sockets
|
|
# @requires_forking
|
|
# def test_ForkingUnixDatagramServer(self):
|
|
# self.run_server(socketserver.ForkingUnixDatagramServer,
|
|
# socketserver.DatagramRequestHandler,
|
|
# self.dgram_examine)
|
|
|
|
@reap_threads
|
|
def test_shutdown(self):
|
|
# Issue #2302: shutdown() should always succeed in making an
|
|
# other thread leave serve_forever().
|
|
class MyServer(socketserver.TCPServer):
|
|
pass
|
|
|
|
class MyHandler(socketserver.StreamRequestHandler):
|
|
pass
|
|
|
|
threads = []
|
|
for i in range(20):
|
|
s = MyServer((HOST, 0), MyHandler)
|
|
t = threading.Thread(
|
|
name='MyServer serving',
|
|
target=s.serve_forever,
|
|
kwargs={'poll_interval':0.01})
|
|
t.daemon = True # In case this function raises.
|
|
threads.append((t, s))
|
|
for t, s in threads:
|
|
t.start()
|
|
s.shutdown()
|
|
for t, s in threads:
|
|
t.join()
|
|
s.server_close()
|
|
|
|
def test_tcpserver_bind_leak(self):
|
|
# Issue #22435: the server socket wouldn't be closed if bind()/listen()
|
|
# failed.
|
|
# Create many servers for which bind() will fail, to see if this result
|
|
# in FD exhaustion.
|
|
for i in range(1024):
|
|
with self.assertRaises(OverflowError):
|
|
socketserver.TCPServer((HOST, -1),
|
|
socketserver.StreamRequestHandler)
|
|
|
|
def test_shutdown_request_called_if_verify_request_false(self):
|
|
# Issue #26309: BaseServer should call shutdown_request even if
|
|
# verify_request is False
|
|
shutdown_called = False
|
|
|
|
class MyServer(socketserver.TCPServer):
|
|
def verify_request(self, request, client_address):
|
|
return False
|
|
|
|
def shutdown_request(self, request):
|
|
nonlocal shutdown_called
|
|
shutdown_called = True
|
|
super().shutdown_request(request)
|
|
|
|
def connect_to_server(proto, addr):
|
|
s = socket.socket(proto, socket.SOCK_STREAM)
|
|
s.connect(addr)
|
|
s.close()
|
|
|
|
self.run_server(MyServer,
|
|
socketserver.StreamRequestHandler,
|
|
connect_to_server)
|
|
self.assertEqual(shutdown_called, True)
|
|
|
|
|
|
class MiscTestCase(unittest.TestCase):
|
|
|
|
def test_all(self):
|
|
# objects defined in the module should be in __all__
|
|
expected = []
|
|
for name in dir(socketserver):
|
|
if not name.startswith('_'):
|
|
mod_object = getattr(socketserver, name)
|
|
if getattr(mod_object, '__module__', None) == 'socketserver':
|
|
expected.append(name)
|
|
self.assertCountEqual(socketserver.__all__, expected)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|