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"""unit tests module for ndg.httpsclient.https.HTTPSconnection class
PyOpenSSL utility to make a httplib-like interface suitable for use with
urllib2
"""
__author__ = "P J Kershaw (STFC)"
__date__ = "06/01/12"
__copyright__ = "(C) 2012 Science and Technology Facilities Council"
__license__ = "BSD - see LICENSE file in top-level directory"
__contact__ = "Philip.Kershaw@stfc.ac.uk"
__revision__ = '$Id$'
import logging
logging.basicConfig(level=logging.DEBUG)
log = logging.getLogger(__name__)
import unittest
import socket
from OpenSSL import SSL
from ndg.httpsclient.test import Constants
from ndg.httpsclient.https import HTTPSConnection
from ndg.httpsclient.ssl_peer_verification import ServerSSLCertVerification
class TestHTTPSConnection(unittest.TestCase):
'''Test ndg HTTPS client HTTPSConnection class'''
def test01_open(self):
conn = HTTPSConnection(Constants.HOSTNAME, port=Constants.PORT)
conn.connect()
conn.request('GET', '/')
resp = conn.getresponse()
print('Response = %s' % resp.read())
conn.close()
def test02_open_fails(self):
conn = HTTPSConnection(Constants.HOSTNAME, port=Constants.PORT2)
self.assertRaises(socket.error, conn.connect)
def test03_ssl_verification_of_peer_fails(self):
ctx = SSL.Context(SSL.TLSv1_METHOD)
def verify_callback(conn, x509, errnum, errdepth, preverify_ok):
log.debug('SSL peer certificate verification failed for %r',
x509.get_subject())
return preverify_ok
ctx.set_verify(SSL.VERIFY_PEER, verify_callback)
ctx.set_verify_depth(9)
# Set bad location - unit test dir has no CA certs to verify with
ctx.load_verify_locations(None, Constants.UNITTEST_DIR)
conn = HTTPSConnection(Constants.HOSTNAME, port=Constants.PORT,
ssl_context=ctx)
conn.connect()
self.assertRaises(SSL.Error, conn.request, 'GET', '/')
def test03_ssl_verification_of_peer_succeeds(self):
ctx = SSL.Context(SSL.TLSv1_METHOD)
verify_callback = lambda conn, x509, errnum, errdepth, preverify_ok: \
preverify_ok
ctx.set_verify(SSL.VERIFY_PEER, verify_callback)
ctx.set_verify_depth(9)
# Set correct location for CA certs to verify with
ctx.load_verify_locations(None, Constants.CACERT_DIR)
conn = HTTPSConnection(Constants.HOSTNAME, port=Constants.PORT,
ssl_context=ctx)
conn.connect()
conn.request('GET', '/')
resp = conn.getresponse()
print('Response = %s' % resp.read())
def test04_ssl_verification_with_subj_alt_name(self):
ctx = SSL.Context(SSL.TLSv1_METHOD)
verification = ServerSSLCertVerification(hostname='localhost')
verify_callback = verification.get_verify_server_cert_func()
ctx.set_verify(SSL.VERIFY_PEER, verify_callback)
ctx.set_verify_depth(9)
# Set correct location for CA certs to verify with
ctx.load_verify_locations(None, Constants.CACERT_DIR)
conn = HTTPSConnection(Constants.HOSTNAME, port=Constants.PORT,
ssl_context=ctx)
conn.connect()
conn.request('GET', '/')
resp = conn.getresponse()
print('Response = %s' % resp.read())
def test04_ssl_verification_with_subj_common_name(self):
ctx = SSL.Context(SSL.TLSv1_METHOD)
# Explicitly set verification of peer hostname using peer certificate
# subject common name
verification = ServerSSLCertVerification(hostname='localhost',
subj_alt_name_match=False)
verify_callback = verification.get_verify_server_cert_func()
ctx.set_verify(SSL.VERIFY_PEER, verify_callback)
ctx.set_verify_depth(9)
# Set correct location for CA certs to verify with
ctx.load_verify_locations(None, Constants.CACERT_DIR)
conn = HTTPSConnection(Constants.HOSTNAME, port=Constants.PORT,
ssl_context=ctx)
conn.connect()
conn.request('GET', '/')
resp = conn.getresponse()
print('Response = %s' % resp.read())
if __name__ == "__main__":
unittest.main()
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