#!/usr/bin/env python
from __future__ import print_function
import contextlib
import socket
import ssl
import sys

print(sys.version_info)
print(ssl.OPENSSL_VERSION)

HOST = 'www.python.org'

ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
ctx.load_default_certs()
ctx.verify_mode = ssl.CERT_REQUIRED
ctx.check_hostname = True

with contextlib.closing(ctx.wrap_socket(
        socket.socket(), server_hostname=HOST)) as sock:
    sock.connect((HOST, 443))

try:
    ctx.wrap_socket(socket.socket(), server_hostname='')
except Exception as e:
    print('Expected exception:', e)
else:
    print('NO EXCEPTION')

try:
    ctx.wrap_socket(socket.socket())
except Exception as e:
    print('Expected exception:', e)
else:
    print('NO EXCEPTION')


ctx.check_hostname = False

with contextlib.closing(ctx.wrap_socket(
        socket.socket(), server_hostname=HOST)) as sock:
    sock.connect((HOST, 443))

with contextlib.closing(ctx.wrap_socket(
        socket.socket(), server_hostname='')) as sock:
    sock.connect((HOST, 443))

with contextlib.closing(ctx.wrap_socket(
        socket.socket())) as sock:
    sock.connect((HOST, 443))