mirror of https://github.com/python/cpython
365 lines
12 KiB
Python
365 lines
12 KiB
Python
import socket
|
|
import telnetlib
|
|
import time
|
|
import Queue
|
|
|
|
from unittest import TestCase
|
|
from test import test_support
|
|
threading = test_support.import_module('threading')
|
|
|
|
HOST = test_support.HOST
|
|
EOF_sigil = object()
|
|
|
|
def server(evt, serv, dataq=None):
|
|
""" Open a tcp server in three steps
|
|
1) set evt to true to let the parent know we are ready
|
|
2) [optional] if is not False, write the list of data from dataq.get()
|
|
to the socket.
|
|
"""
|
|
serv.listen(5)
|
|
evt.set()
|
|
try:
|
|
conn, addr = serv.accept()
|
|
if dataq:
|
|
data = ''
|
|
new_data = dataq.get(True, 0.5)
|
|
dataq.task_done()
|
|
for item in new_data:
|
|
if item == EOF_sigil:
|
|
break
|
|
if type(item) in [int, float]:
|
|
time.sleep(item)
|
|
else:
|
|
data += item
|
|
written = conn.send(data)
|
|
data = data[written:]
|
|
conn.close()
|
|
except socket.timeout:
|
|
pass
|
|
finally:
|
|
serv.close()
|
|
|
|
class GeneralTests(TestCase):
|
|
|
|
def setUp(self):
|
|
self.evt = threading.Event()
|
|
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
self.sock.settimeout(60) # Safety net. Look issue 11812
|
|
self.port = test_support.bind_port(self.sock)
|
|
self.thread = threading.Thread(target=server, args=(self.evt,self.sock))
|
|
self.thread.setDaemon(True)
|
|
self.thread.start()
|
|
self.evt.wait()
|
|
|
|
def tearDown(self):
|
|
self.thread.join()
|
|
|
|
def testBasic(self):
|
|
# connects
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
telnet.sock.close()
|
|
|
|
def testTimeoutDefault(self):
|
|
self.assertTrue(socket.getdefaulttimeout() is None)
|
|
socket.setdefaulttimeout(30)
|
|
try:
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
finally:
|
|
socket.setdefaulttimeout(None)
|
|
self.assertEqual(telnet.sock.gettimeout(), 30)
|
|
telnet.sock.close()
|
|
|
|
def testTimeoutNone(self):
|
|
# None, having other default
|
|
self.assertTrue(socket.getdefaulttimeout() is None)
|
|
socket.setdefaulttimeout(30)
|
|
try:
|
|
telnet = telnetlib.Telnet(HOST, self.port, timeout=None)
|
|
finally:
|
|
socket.setdefaulttimeout(None)
|
|
self.assertTrue(telnet.sock.gettimeout() is None)
|
|
telnet.sock.close()
|
|
|
|
def testTimeoutValue(self):
|
|
telnet = telnetlib.Telnet(HOST, self.port, timeout=30)
|
|
self.assertEqual(telnet.sock.gettimeout(), 30)
|
|
telnet.sock.close()
|
|
|
|
def testTimeoutOpen(self):
|
|
telnet = telnetlib.Telnet()
|
|
telnet.open(HOST, self.port, timeout=30)
|
|
self.assertEqual(telnet.sock.gettimeout(), 30)
|
|
telnet.sock.close()
|
|
|
|
def _read_setUp(self):
|
|
self.evt = threading.Event()
|
|
self.dataq = Queue.Queue()
|
|
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
self.sock.settimeout(3)
|
|
self.port = test_support.bind_port(self.sock)
|
|
self.thread = threading.Thread(target=server, args=(self.evt,self.sock, self.dataq))
|
|
self.thread.start()
|
|
self.evt.wait()
|
|
|
|
def _read_tearDown(self):
|
|
self.thread.join()
|
|
|
|
class ReadTests(TestCase):
|
|
setUp = _read_setUp
|
|
tearDown = _read_tearDown
|
|
|
|
# use a similar approach to testing timeouts as test_timeout.py
|
|
# these will never pass 100% but make the fuzz big enough that it is rare
|
|
block_long = 0.6
|
|
block_short = 0.3
|
|
def test_read_until_A(self):
|
|
"""
|
|
read_until(expected, [timeout])
|
|
Read until the expected string has been seen, or a timeout is
|
|
hit (default is no timeout); may block.
|
|
"""
|
|
want = ['x' * 10, 'match', 'y' * 10, EOF_sigil]
|
|
self.dataq.put(want)
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
data = telnet.read_until('match')
|
|
self.assertEqual(data, ''.join(want[:-2]))
|
|
|
|
def test_read_until_B(self):
|
|
# test the timeout - it does NOT raise socket.timeout
|
|
want = ['hello', self.block_long, 'not seen', EOF_sigil]
|
|
self.dataq.put(want)
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
data = telnet.read_until('not seen', self.block_short)
|
|
self.assertEqual(data, want[0])
|
|
self.assertEqual(telnet.read_all(), 'not seen')
|
|
|
|
def test_read_all_A(self):
|
|
"""
|
|
read_all()
|
|
Read all data until EOF; may block.
|
|
"""
|
|
want = ['x' * 500, 'y' * 500, 'z' * 500, EOF_sigil]
|
|
self.dataq.put(want)
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
data = telnet.read_all()
|
|
self.assertEqual(data, ''.join(want[:-1]))
|
|
return
|
|
|
|
def _test_blocking(self, func):
|
|
self.dataq.put([self.block_long, EOF_sigil])
|
|
self.dataq.join()
|
|
start = time.time()
|
|
data = func()
|
|
self.assertTrue(self.block_short <= time.time() - start)
|
|
|
|
def test_read_all_B(self):
|
|
self._test_blocking(telnetlib.Telnet(HOST, self.port).read_all)
|
|
|
|
def test_read_all_C(self):
|
|
self.dataq.put([EOF_sigil])
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
telnet.read_all()
|
|
telnet.read_all() # shouldn't raise
|
|
|
|
def test_read_some_A(self):
|
|
"""
|
|
read_some()
|
|
Read at least one byte or EOF; may block.
|
|
"""
|
|
# test 'at least one byte'
|
|
want = ['x' * 500, EOF_sigil]
|
|
self.dataq.put(want)
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
data = telnet.read_all()
|
|
self.assertTrue(len(data) >= 1)
|
|
|
|
def test_read_some_B(self):
|
|
# test EOF
|
|
self.dataq.put([EOF_sigil])
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
self.assertEqual('', telnet.read_some())
|
|
|
|
def test_read_some_C(self):
|
|
self._test_blocking(telnetlib.Telnet(HOST, self.port).read_some)
|
|
|
|
def _test_read_any_eager_A(self, func_name):
|
|
"""
|
|
read_very_eager()
|
|
Read all data available already queued or on the socket,
|
|
without blocking.
|
|
"""
|
|
want = [self.block_long, 'x' * 100, 'y' * 100, EOF_sigil]
|
|
expects = want[1] + want[2]
|
|
self.dataq.put(want)
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
func = getattr(telnet, func_name)
|
|
data = ''
|
|
while True:
|
|
try:
|
|
data += func()
|
|
self.assertTrue(expects.startswith(data))
|
|
except EOFError:
|
|
break
|
|
self.assertEqual(expects, data)
|
|
|
|
def _test_read_any_eager_B(self, func_name):
|
|
# test EOF
|
|
self.dataq.put([EOF_sigil])
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
time.sleep(self.block_short)
|
|
func = getattr(telnet, func_name)
|
|
self.assertRaises(EOFError, func)
|
|
|
|
# read_eager and read_very_eager make the same gaurantees
|
|
# (they behave differently but we only test the gaurantees)
|
|
def test_read_very_eager_A(self):
|
|
self._test_read_any_eager_A('read_very_eager')
|
|
def test_read_very_eager_B(self):
|
|
self._test_read_any_eager_B('read_very_eager')
|
|
def test_read_eager_A(self):
|
|
self._test_read_any_eager_A('read_eager')
|
|
def test_read_eager_B(self):
|
|
self._test_read_any_eager_B('read_eager')
|
|
# NB -- we need to test the IAC block which is mentioned in the docstring
|
|
# but not in the module docs
|
|
|
|
def _test_read_any_lazy_B(self, func_name):
|
|
self.dataq.put([EOF_sigil])
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
func = getattr(telnet, func_name)
|
|
telnet.fill_rawq()
|
|
self.assertRaises(EOFError, func)
|
|
|
|
def test_read_lazy_A(self):
|
|
want = ['x' * 100, EOF_sigil]
|
|
self.dataq.put(want)
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
time.sleep(self.block_short)
|
|
self.assertEqual('', telnet.read_lazy())
|
|
data = ''
|
|
while True:
|
|
try:
|
|
read_data = telnet.read_lazy()
|
|
data += read_data
|
|
if not read_data:
|
|
telnet.fill_rawq()
|
|
except EOFError:
|
|
break
|
|
self.assertTrue(want[0].startswith(data))
|
|
self.assertEqual(data, want[0])
|
|
|
|
def test_read_lazy_B(self):
|
|
self._test_read_any_lazy_B('read_lazy')
|
|
|
|
def test_read_very_lazy_A(self):
|
|
want = ['x' * 100, EOF_sigil]
|
|
self.dataq.put(want)
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
time.sleep(self.block_short)
|
|
self.assertEqual('', telnet.read_very_lazy())
|
|
data = ''
|
|
while True:
|
|
try:
|
|
read_data = telnet.read_very_lazy()
|
|
except EOFError:
|
|
break
|
|
data += read_data
|
|
if not read_data:
|
|
telnet.fill_rawq()
|
|
self.assertEqual('', telnet.cookedq)
|
|
telnet.process_rawq()
|
|
self.assertTrue(want[0].startswith(data))
|
|
self.assertEqual(data, want[0])
|
|
|
|
def test_read_very_lazy_B(self):
|
|
self._test_read_any_lazy_B('read_very_lazy')
|
|
|
|
class nego_collector(object):
|
|
def __init__(self, sb_getter=None):
|
|
self.seen = ''
|
|
self.sb_getter = sb_getter
|
|
self.sb_seen = ''
|
|
|
|
def do_nego(self, sock, cmd, opt):
|
|
self.seen += cmd + opt
|
|
if cmd == tl.SE and self.sb_getter:
|
|
sb_data = self.sb_getter()
|
|
self.sb_seen += sb_data
|
|
|
|
tl = telnetlib
|
|
class OptionTests(TestCase):
|
|
setUp = _read_setUp
|
|
tearDown = _read_tearDown
|
|
# RFC 854 commands
|
|
cmds = [tl.AO, tl.AYT, tl.BRK, tl.EC, tl.EL, tl.GA, tl.IP, tl.NOP]
|
|
|
|
def _test_command(self, data):
|
|
""" helper for testing IAC + cmd """
|
|
self.setUp()
|
|
self.dataq.put(data)
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
nego = nego_collector()
|
|
telnet.set_option_negotiation_callback(nego.do_nego)
|
|
txt = telnet.read_all()
|
|
cmd = nego.seen
|
|
self.assertTrue(len(cmd) > 0) # we expect at least one command
|
|
self.assertIn(cmd[0], self.cmds)
|
|
self.assertEqual(cmd[1], tl.NOOPT)
|
|
self.assertEqual(len(''.join(data[:-1])), len(txt + cmd))
|
|
nego.sb_getter = None # break the nego => telnet cycle
|
|
self.tearDown()
|
|
|
|
def test_IAC_commands(self):
|
|
# reset our setup
|
|
self.dataq.put([EOF_sigil])
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
self.tearDown()
|
|
|
|
for cmd in self.cmds:
|
|
self._test_command(['x' * 100, tl.IAC + cmd, 'y'*100, EOF_sigil])
|
|
self._test_command(['x' * 10, tl.IAC + cmd, 'y'*10, EOF_sigil])
|
|
self._test_command([tl.IAC + cmd, EOF_sigil])
|
|
# all at once
|
|
self._test_command([tl.IAC + cmd for (cmd) in self.cmds] + [EOF_sigil])
|
|
self.assertEqual('', telnet.read_sb_data())
|
|
|
|
def test_SB_commands(self):
|
|
# RFC 855, subnegotiations portion
|
|
send = [tl.IAC + tl.SB + tl.IAC + tl.SE,
|
|
tl.IAC + tl.SB + tl.IAC + tl.IAC + tl.IAC + tl.SE,
|
|
tl.IAC + tl.SB + tl.IAC + tl.IAC + 'aa' + tl.IAC + tl.SE,
|
|
tl.IAC + tl.SB + 'bb' + tl.IAC + tl.IAC + tl.IAC + tl.SE,
|
|
tl.IAC + tl.SB + 'cc' + tl.IAC + tl.IAC + 'dd' + tl.IAC + tl.SE,
|
|
EOF_sigil,
|
|
]
|
|
self.dataq.put(send)
|
|
telnet = telnetlib.Telnet(HOST, self.port)
|
|
self.dataq.join()
|
|
nego = nego_collector(telnet.read_sb_data)
|
|
telnet.set_option_negotiation_callback(nego.do_nego)
|
|
txt = telnet.read_all()
|
|
self.assertEqual(txt, '')
|
|
want_sb_data = tl.IAC + tl.IAC + 'aabb' + tl.IAC + 'cc' + tl.IAC + 'dd'
|
|
self.assertEqual(nego.sb_seen, want_sb_data)
|
|
self.assertEqual('', telnet.read_sb_data())
|
|
nego.sb_getter = None # break the nego => telnet cycle
|
|
|
|
def test_main(verbose=None):
|
|
test_support.run_unittest(GeneralTests, ReadTests, OptionTests)
|
|
|
|
if __name__ == '__main__':
|
|
test_main()
|