Check for SNI capability over SSL

ssl_checkup.py

#From inside a virtualenv:
#!bin/python2.7

#For system wide site-packages, comment the previous and uncomment below:
##!/usr/bin/env python2.7

import sys

debug = False
info_strings = []

def InternalException(e, info='', exit=debug):
    if debug:
        print(e)
        raise
        sys.exit(1)

    if len(info):
        info_strings.append(info)
        

try:
    import pyasn1
except ImportError as e:
    InternalException(e, info='pyasn1')


try:
    import ndg.httpsclient
except ImportError as e:
    InternalException(e, info='ndg-httpsclient')


try:
    import OpenSSL
    from OpenSSL.version import __version__ as pyOpenSSL_Version
    if debug:
        print('pyOpenSSL Version: ' + pyOpenSSL_Version)
    if int(pyOpenSSL_Version.replace('.', '')[:3]) > 13:
        if debug:
            print('OpenSSL is 0.14 or newer, checking for cryptography')
        import cryptography
except ImportError as e:
    InternalException(e, info='pyopenssl==0.13.1')


try:
    import requests
    assert int(requests.__version__.replace('.', '')[:3]) <= 260
except:
    InternalException(sys.exc_info()[0], info='requests==2.6.0')


if len(info_strings):
    output = 'Please run the following command, and run this script again:\n    sudo pip2.7 install -U'
    for mod in info_strings:
        output += ' ' + mod
    print(output)
    sys.exit(1)


try:
    from requests.packages.urllib3.contrib.pyopenssl import inject_into_urllib3
    from requests.packages.urllib3 import disable_warnings
except ImportError as e:
    InternalException(e, exit=True)


try:
    disable_warnings()
    inject_into_urllib3()
except:
    InternalException(sys.exc_info()[0], exit=True)


try:
    req = requests.get("https://sceneaccess.eu")
    assert req.status_code == 200
except:
    InternalException(sys.exc_info()[0], exit=True)
finally:
    print('Success! SSL is working properly with SNI and shared hosting!')


sys.exit(0)