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import greentest
from gevent import socket
import gevent
from gevent.server import StreamServer
import errno
import os
class SimpleStreamServer(StreamServer):
def handle(self, client_socket, address):
fd = client_socket.makefile()
request_line = fd.readline()
if not request_line:
return
try:
method, path, rest = request_line.split(' ', 3)
except Exception:
print 'Failed to parse request line: %r' % (request_line, )
raise
if path == '/ping':
client_socket.sendall('HTTP/1.0 200 OK\r\n\r\nPONG')
elif path in ['/long', '/short']:
client_socket.sendall('hello')
while True:
data = client_socket.recv(1)
if not data:
break
else:
client_socket.sendall('HTTP/1.0 404 WTF?\r\n\r\n')
class Settings:
ServerClass = StreamServer
ServerSubClass = SimpleStreamServer
restartable = True
close_socket_detected = True
@staticmethod
def assertAcceptedConnectionError(self):
conn = self.makefile()
result = conn.read()
assert not result, repr(result)
assert500 = assertAcceptedConnectionError
@staticmethod
def assert503(self):
# regular reads timeout
self.assert500()
# attempt to send anything reset the connection
try:
self.send_request()
except socket.error, ex:
if ex[0] != errno.ECONNRESET:
raise
@staticmethod
def assertPoolFull(self):
self.assertRaises(socket.timeout, self.assertRequestSucceeded, timeout=0.01)
class TestCase(greentest.TestCase):
__timeout__ = 10
def cleanup(self):
if getattr(self, 'server', None) is not None:
self.server.stop()
self.server = None
def get_listener(self):
sock = socket.socket()
sock.bind(('127.0.0.1', 0))
sock.listen(5)
return sock
def makefile(self, timeout=0.1, bufsize=1):
sock = socket.create_connection((self.server.server_host, self.server.server_port))
fobj = sock.makefile(bufsize=bufsize)
fobj._sock.settimeout(timeout)
return fobj
def send_request(self, url='/', timeout=0.1, bufsize=1):
conn = self.makefile(timeout=timeout, bufsize=bufsize)
conn.write('GET %s HTTP/1.0\r\n\r\n' % url)
conn.flush()
return conn
def assertConnectionRefused(self):
try:
conn = self.makefile()
raise AssertionError('Connection was not refused: %r' % (conn._sock, ))
except socket.error, ex:
if ex[0] not in (errno.ECONNREFUSED, errno.EADDRNOTAVAIL):
raise
def assert500(self):
Settings.assert500(self)
def assert503(self):
Settings.assert503(self)
def assertAcceptedConnectionError(self):
Settings.assertAcceptedConnectionError(self)
def assertPoolFull(self):
Settings.assertPoolFull(self)
def assertNotAccepted(self):
conn = self.makefile()
conn.write('GET / HTTP/1.0\r\n\r\n')
conn.flush()
result = ''
try:
while True:
data = conn._sock.recv(1)
if not data:
break
result += data
except socket.timeout:
assert not result, repr(result)
return
assert result.startswith('HTTP/1.0 500 Internal Server Error'), repr(result)
def assertRequestSucceeded(self, timeout=0.1):
conn = self.makefile(timeout=timeout)
conn.write('GET /ping HTTP/1.0\r\n\r\n')
result = conn.read()
assert result.endswith('\r\n\r\nPONG'), repr(result)
def start_server(self):
self.server.start()
self.assertRequestSucceeded()
self.assertRequestSucceeded()
def stop_server(self):
self.server.stop()
self.assertConnectionRefused()
def report_netstat(self, msg):
return
print msg
os.system('sudo netstat -anp | grep %s' % os.getpid())
print '^^^^^'
def init_server(self):
self.server = self.ServerSubClass(('127.0.0.1', 0))
self.server.start()
gevent.sleep(0.01)
@property
def socket(self):
return self.server.socket
def _test_invalid_callback(self):
try:
self.hook_stderr()
self.server = self.ServerClass(('127.0.0.1', 0), lambda: None)
self.server.start()
self.assert500()
self.assert_stderr_traceback('TypeError')
self.assert_stderr(self.invalid_callback_message)
finally:
self.server.stop()
def ServerClass(self, *args, **kwargs):
kwargs.setdefault('spawn', self.get_spawn())
return Settings.ServerClass(*args, **kwargs)
def ServerSubClass(self, *args, **kwargs):
kwargs.setdefault('spawn', self.get_spawn())
return Settings.ServerSubClass(*args, **kwargs)
class TestDefaultSpawn(TestCase):
invalid_callback_message = '<Greenlet failed with TypeError'
def get_spawn(self):
return gevent.spawn
def _test_server_start_stop(self, restartable):
self.report_netstat('before start')
self.start_server()
self.report_netstat('after start')
if restartable and Settings.restartable:
self.server.stop_accepting()
self.report_netstat('after stop_accepting')
self.assertNotAccepted()
self.server.start_accepting()
self.report_netstat('after start_accepting')
self.assertRequestSucceeded()
else:
self.assertRaises(Exception, self.server.start) # XXX which exception exactly?
self.stop_server()
self.report_netstat('after stop')
def test_backlog_is_not_accepted_for_socket(self):
self.switch_expected = False
self.assertRaises(TypeError, self.ServerClass, self.get_listener(), backlog=25)
def test_backlog_is_accepted_for_address(self):
self.server = self.ServerSubClass(('127.0.0.1', 0), backlog=25)
self.assertConnectionRefused()
self._test_server_start_stop(restartable=False)
def test_subclass_just_create(self):
self.server = self.ServerSubClass(self.get_listener())
self.assertNotAccepted()
def test_subclass_with_socket(self):
self.server = self.ServerSubClass(self.get_listener())
# the connection won't be refused, because there exists a listening socket, but it won't be handled also
self.assertNotAccepted()
self.server.reuse_addr = 1
self._test_server_start_stop(restartable=True)
def test_subclass_with_address(self):
self.server = self.ServerSubClass(('127.0.0.1', 0))
self.assertConnectionRefused()
self._test_server_start_stop(restartable=True)
def test_invalid_callback(self):
self._test_invalid_callback()
def _test_serve_forever(self):
g = gevent.spawn_link_exception(self.server.serve_forever)
try:
gevent.sleep(0.01)
self.assertRequestSucceeded()
self.server.stop()
assert not self.server.started
self.assertConnectionRefused()
finally:
g.kill()
def test_serve_forever(self):
self.server = self.ServerSubClass(('127.0.0.1', 0))
assert not self.server.started
self.assertConnectionRefused()
self._test_serve_forever()
def test_serve_forever_after_start(self):
self.server = self.ServerSubClass(('127.0.0.1', 0))
self.assertConnectionRefused()
assert not self.server.started
self.server.start()
assert self.server.started
self._test_serve_forever()
def test_server_closes_client_sockets(self):
self.server = self.ServerClass(('127.0.0.1', 0), lambda *args: [])
self.server.start()
conn = self.send_request()
timeout = gevent.Timeout.start_new(1)
# use assert500 below?
try:
try:
result = conn.read()
if result:
assert result.startswith('HTTP/1.0 500 Internal Server Error'), repr(result)
except socket.error, ex:
if ex[0] != errno.ECONNRESET:
raise
finally:
timeout.cancel()
self.stop_server()
def init_server(self):
self.server = self.ServerSubClass(('127.0.0.1', 0))
self.server.start()
gevent.sleep(0.01)
@property
def socket(self):
return self.server.socket
def test_error_in_spawn(self):
self.init_server()
assert self.server.started
self.hook_stderr()
error = ExpectedError('test_error_in_spawn')
self.server._spawn = lambda *args: gevent.getcurrent().throw(error)
self.assertAcceptedConnectionError()
self.assert_stderr_traceback(error)
#self.assert_stderr('^WARNING: <SimpleStreamServer .*?>: ignoring test_error_in_spawn \\(sleeping \d.\d+ seconds\\)\n$')
self.assert_stderr('<.*?>: Failed to handle...')
return
if Settings.restartable:
assert not self.server.started
else:
assert self.server.started
gevent.sleep(0.1)
assert self.server.started
class TestRawSpawn(TestDefaultSpawn):
invalid_callback_message = 'Failed active_event...'
def get_spawn(self):
return gevent.spawn_raw
class TestPoolSpawn(TestDefaultSpawn):
def get_spawn(self):
return 2
def test_pool_full(self):
self.init_server()
short_request = self.send_request('/short')
long_request = self.send_request('/long')
# keep long_request in scope, otherwise the connection will be closed
gevent.sleep(0.01)
self.assertPoolFull()
self.assertPoolFull()
self.assertPoolFull()
short_request._sock.close()
# gevent.http and gevent.wsgi cannot detect socket close, so sleep a little
# to let /short request finish
gevent.sleep(0.1)
self.assertRequestSucceeded()
class TestNoneSpawn(TestCase):
invalid_callback_message = '<.*?>: Failed to handle'
def get_spawn(self):
return None
def test_invalid_callback(self):
self._test_invalid_callback()
def test_assertion_in_blocking_func(self):
def sleep(*args):
gevent.sleep(0)
self.server = Settings.ServerClass(('127.0.0.1', 0), sleep, spawn=None)
self.server.start()
self.hook_stderr()
self.assert500()
self.assert_mainloop_assertion(self.invalid_callback_message)
class ExpectedError(Exception):
pass
class TestSSLSocketNotAllowed(TestCase):
switch_expected = False
def get_spawn(self):
return gevent.spawn
if hasattr(socket, 'ssl'):
def test(self):
from gevent.socket import ssl, socket
listener = socket()
listener.bind(('0.0.0.0', 0))
listener.listen(5)
listener = ssl(listener)
self.assertRaises(TypeError, self.ServerSubClass, listener)
# test non-socket.error exception in accept call: fatal
# test error in spawn(): non-fatal
# test error in spawned handler: non-fatal
if __name__ == '__main__':
greentest.main()
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