pandorafms/pandora_console/extensions/realtime_graphs/ajax.php

<?php

// Pandora FMS - http://pandorafms.com
// ==================================================
// Copyright (c) 2005-2014 Artica Soluciones Tecnologicas
// Please see http://pandorafms.org for full contribution list

// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; version 2

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

require_once ('../../include/functions_html.php');

$graph = $_POST['graph'];
$graph_title = $_POST['graph_title'];
$refresh = $_POST['refresh'];

switch($graph) {
	case 'cpu_load':
		$data = exec("top -bn 2 -d 0.01 | grep '^Cpu' | tail -n 1 | awk '{ print $2+$4+$6 }'");
		break;
	case 'pending_packets':
		$data = exec("ls /var/spool/pandora/data_in/ | wc -l");
		break;
	case 'disk_io_wait':
		$data = exec("vmstat 1 3 | tail -1 | awk '{ print $16 }'");
		break;
	case 'mysql_load':
		$data = exec("ps aux | grep mysqld | grep -v safe | grep -v grep | awk '{ print $3 }'");
		break;
	case 'apache_load':
		$data = exec("ps aux | grep apache2 | grep -v safe | grep -v grep | awk '{ sum+=$3 } END { print sum }'");
		break;
	case 'server_load':
		$data = exec("ps aux | grep pandora_server | grep -v grep | awk '{ print $3 }'");
		break;
	case 'snmp_interface':
		$snmp_address = $_POST['snmp_address'];
		$snmp_community = $_POST['snmp_community'];
		$snmp_ver = $_POST['snmp_ver'];
		$snmp_oid = $_POST['snmp_oid'];
		
		if (empty($snmp_address) || empty($snmp_oid)) {
			$data = 0;
		}
		else {
			$data = get_snmpwalk($snmp_address, $snmp_ver, $snmp_community, '', '', '', '', '', '', 0, $snmp_oid);
			$data_index = array_keys($data);
			$graph_title = $data_index[0];
			if (!empty($data)) {
				$data_array = explode(' ', reset($data));
				if (count($data_array) > 1) {
					$data = $data_array[1];
				}
			}
		}
		break;
	default:
		$data = 0;
}

if (empty($data)) {
	$data = 0;
}

echo '{
    "label": "' . $graph_title . '",
    "data": [["' . time() . '", ' . $data . ']]
}';
?>