import sys, httplib


def pingHost(host,
             port):
    """
    Ping the node defined by the given host name/port number.

    host:        Hostname (string).

    port:        Port number (integer).
    
    Returns:     1 = host could be accessed, 0 host inaccessible (integer/0|1).
    """
    try:
        httpObj = httplib.HTTPConnection(host, port)
        httpObj.request("GET", "/STATUS")
        respObj = httpObj.getresponse()
        respObj.read()
        return 1
    except Exception, e:
        return 0


if __name__ == '__main__':
    """
    Main program.
    """
    try:
        host = sys.argv[1]
        port = int(sys.argv[2])
    except Exception, e:
        raise Exception, "Correct usage: ngamsPingHost <Host> <Port>"
    stat = pingHost(host, port)   
    if (stat):
        print "Status of pinging host: %s:%s: OK" % (host, str(port))
        sys.exit(0)
    else:
        print "Status of pinging host: %s:%s: INACCESSIBLE" % (host, str(port))
        sys.exit(1)


# EOF