http redirector that works with tornado. start_redirector (in my code) gets called in a background thread.. ignore the callback arg, which is None, but kwargs is passed in containing use_ssl and port as values for the redirect handler.

http redirect example

def start_redirector(kwargs, callback):
    # can't use tornado for this (not threadsafe). Must use something else, something simpler!
    http_port = 8888
    if eucaconsole.config.has_option('server', 'http.port'):
        http_port = eucaconsole.config.getint('server', 'http.port')
    server = BaseHTTPServer.HTTPServer(('localhost', http_port),
                    lambda *args: RedirectHandler(kwargs, *args))
    server.serve_forever()

class RedirectHandler(BaseHTTPRequestHandler):
    def __init__(self, kwargs, *args):
        self._url = 'https' if kwargs['use_ssl'] else 'http'
        self._url += '://%s:'+str(kwargs['port'])+'/'
        BaseHTTPServer.BaseHTTPRequestHandler.__init__(self, *args)

    def do_GET(self):
        self.send_response(301)
        host = self.headers.dict['host']
        if host.find(':') > -1:
          host = host.split(':')[0]
        self.send_header("Location", self._url % host)
        self.end_headers()
        logging.info("Redirected http request")
        return