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import socket
import warnings
from unittest import main
import eventlet
from eventlet import greenio
try:
from eventlet.green import ssl
except ImportError:
pass
from tests import (
LimitedTestCase, certificate_file, private_key_file, check_idle_cpu_usage,
skip_if_no_ssl
)
def listen_ssl_socket(address=('127.0.0.1', 0)):
sock = ssl.wrap_socket(
socket.socket(), private_key_file, certificate_file, server_side=True)
sock.bind(address)
sock.listen(50)
return sock
class SSLTest(LimitedTestCase):
def setUp(self):
# disabling socket.ssl warnings because we're testing it here
warnings.filterwarnings(
action='ignore',
message='.*socket.ssl.*',
category=DeprecationWarning)
super(SSLTest, self).setUp()
@skip_if_no_ssl
def test_duplex_response(self):
def serve(listener):
sock, addr = listener.accept()
sock.read(8192)
sock.write(b'response')
sock = listen_ssl_socket()
server_coro = eventlet.spawn(serve, sock)
client = ssl.wrap_socket(
eventlet.connect(('127.0.0.1', sock.getsockname()[1])))
client.write(b'line 1\r\nline 2\r\n\r\n')
self.assertEqual(client.read(8192), b'response')
server_coro.wait()
@skip_if_no_ssl
def test_ssl_close(self):
def serve(listener):
sock, addr = listener.accept()
sock.read(8192)
try:
self.assertEqual(b"", sock.read(8192))
except greenio.SSL.ZeroReturnError:
pass
sock = listen_ssl_socket()
server_coro = eventlet.spawn(serve, sock)
raw_client = eventlet.connect(('127.0.0.1', sock.getsockname()[1]))
client = ssl.wrap_socket(raw_client)
client.write(b'X')
greenio.shutdown_safe(client)
client.close()
server_coro.wait()
@skip_if_no_ssl
def test_ssl_connect(self):
def serve(listener):
sock, addr = listener.accept()
sock.read(8192)
sock = listen_ssl_socket()
server_coro = eventlet.spawn(serve, sock)
raw_client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
ssl_client = ssl.wrap_socket(raw_client)
ssl_client.connect(('127.0.0.1', sock.getsockname()[1]))
ssl_client.write(b'abc')
greenio.shutdown_safe(ssl_client)
ssl_client.close()
server_coro.wait()
@skip_if_no_ssl
def test_ssl_unwrap(self):
def serve():
sock, addr = listener.accept()
self.assertEqual(sock.recv(6), b'before')
sock_ssl = ssl.wrap_socket(sock, private_key_file, certificate_file,
server_side=True)
sock_ssl.do_handshake()
self.assertEqual(sock_ssl.read(6), b'during')
sock2 = sock_ssl.unwrap()
self.assertEqual(sock2.recv(5), b'after')
sock2.close()
listener = eventlet.listen(('127.0.0.1', 0))
server_coro = eventlet.spawn(serve)
client = eventlet.connect((listener.getsockname()))
client.send(b'before')
client_ssl = ssl.wrap_socket(client)
client_ssl.do_handshake()
client_ssl.write(b'during')
client2 = client_ssl.unwrap()
client2.send(b'after')
server_coro.wait()
@skip_if_no_ssl
def test_sendall_cpu_usage(self):
"""SSL socket.sendall() busy loop
https://bitbucket.org/eventlet/eventlet/issue/134/greenssl-performance-issues
Idea of this test is to check that GreenSSLSocket.sendall() does not busy loop
retrying .send() calls, but instead trampolines until socket is writeable.
BUFFER_SIZE and SENDALL_SIZE are magic numbers inferred through trial and error.
"""
# Time limit resistant to busy loops
self.set_alarm(1)
stage_1 = eventlet.event.Event()
BUFFER_SIZE = 1000
SENDALL_SIZE = 100000
def serve(listener):
conn, _ = listener.accept()
conn.setsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF, BUFFER_SIZE)
self.assertEqual(conn.read(8), b'request')
conn.write(b'response')
stage_1.wait()
conn.sendall(b'x' * SENDALL_SIZE)
server_sock = listen_ssl_socket()
server_coro = eventlet.spawn(serve, server_sock)
client_sock = eventlet.connect(server_sock.getsockname())
client_sock.setsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF, BUFFER_SIZE)
client = ssl.wrap_socket(client_sock)
client.write(b'request')
self.assertEqual(client.read(8), b'response')
stage_1.send()
check_idle_cpu_usage(0.2, 0.1)
server_coro.kill()
@skip_if_no_ssl
def test_greensslobject(self):
def serve(listener):
sock, addr = listener.accept()
sock.write(b'content')
greenio.shutdown_safe(sock)
sock.close()
listener = listen_ssl_socket(('', 0))
eventlet.spawn(serve, listener)
client = ssl.wrap_socket(
eventlet.connect(('localhost', listener.getsockname()[1])))
self.assertEqual(client.read(1024), b'content')
self.assertEqual(client.read(1024), b'')
@skip_if_no_ssl
def test_regression_gh_17(self):
def serve(listener):
sock, addr = listener.accept()
# to simulate condition mentioned in GH-17
sock._sslobj = None
sock.sendall(b'some data')
greenio.shutdown_safe(sock)
sock.close()
listener = listen_ssl_socket(('', 0))
eventlet.spawn(serve, listener)
ssl.wrap_socket(eventlet.connect(('localhost', listener.getsockname()[1])))
if __name__ == '__main__':
main()
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