An extension to Python3's http.server module that allows creation of HTTPS servers. Inspired by @dergachev's even simpler https://gist.github.com/dergachev/7028596.

https_server.py

"""
An extension to Python3's http.server module that allows creation of HTTPS
servers. Inspired by @dergachev's https://gist.github.com/dergachev/7028596.

You can either use a separate certificate and key file:

    python3 https_server.py -c server.crt -k server.key

Or generate a PEM file and use it as the certificate:

    openssl req -new -x509 -keyout server.pem -out server.pem -days 365 -nodes
    python https_server.py -c server.pem

"""

import argparse
from http.server import (HTTPServer, test,
                         CGIHTTPRequestHandler, SimpleHTTPRequestHandler)
from ssl import wrap_socket


def HTTPSServer_class_factory(certfile, keyfile=None):
    """
    Create an HTTPSServer class that wraps an HTTPServer socket in an SSL
    context. See https://docs.python.org/3/library/ssl.html#socket-creation
    for more information.
    """
    class CertifiedHTTPSServer (HTTPSServer):
        def __init__(self, *args, **kwargs):
            super().__init__(*args, **kwargs)
            self.socket = wrap_socket(self.socket, certfile=certfile, keyfile=keyfile, server_side=True)
    return CertifiedHTTPSServer


if __name__ == '__main__':
    # NOTE: Most of the following parser arguments are copied from http.server.
    # The exceptions are --certfile and --keyfile, which affect which server
    # class is passed to the test server function
    parser = argparse.ArgumentParser()
    parser.add_argument('--cgi', action='store_true',
                       help='Run as CGI Server')
    parser.add_argument('--bind', '-b', default='', metavar='ADDRESS',
                        help='Specify alternate bind address '
                             '[default: all interfaces]')
    parser.add_argument('port', action='store',
                        default=8000, type=int,
                        nargs='?',
                        help='Specify alternate port [default: 8000]')
    parser.add_argument('--certfile', '-c', action='store', default=None,
                        nargs='?', help='Specify an SSL certificate to serve '
                                        'requests over HTTPS [default: None]')
    parser.add_argument('--keyfile', '-k', action='store', default=None,
                        nargs='?', help='Specify an SSL certificate to serve '
                                        'requests over HTTPS [default: None]')

    args = parser.parse_args()
    if args.cgi:
        handler_class = CGIHTTPRequestHandler
    else:
        handler_class = SimpleHTTPRequestHandler

    if args.certfile:
        server_class = HTTPSServer_class_factory(args.certfile, args.keyfile)
    else:
        server_class = HTTPServer

    test(HandlerClass=handler_class, ServerClass=server_class, port=args.port, bind=args.bind)