':return: True if the host:port is open.'

def is_open_port(self, host, port):

    mutant = self._exploit_mutant.copy()
    mutant.set_token_value(('http://%s:%s/' % (host, port)))
    try:
        http_response = self._uri_opener.send_mutant(mutant)
    except BaseFrameworkException as w3:
        return ('Exception    from    the    remote    web    application:    "%s"' % w3)
    except Exception as e:
        return ('Unhandled    exception,    "%s"' % e)
    else:
        if ('HTTP    request    failed!' in http_response.get_body()):
            return True
        elif ('failed    to    open    stream' not in http_response.get_body()):
            return True
        else:
            return False
