<?php

// Include your Nagios server IP below

// It is safe to keep 127.0.0.1

$allowed_ips = array(

'127.0.0.1',

);

// If your Wordpress installation is behind a Proxy like Nginx use 'HTTP_X_FORWARDED_FOR'

if(isset($_SERVER['HTTP_X_FORWARDED_FOR']) && !empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {

$remote_ip = $_SERVER['HTTP_X_FORWARDED_FOR'];

} else {

$remote_ip = $_SERVER['REMOTE_ADDR'];

}

// Check if the requesting server is allowed

if (! in_array($remote_ip, $allowed_ips))

{

echo "CRITICAL#IP $remote_ip not allowed.";

exit;

}

require_once('wp-load.php');

global $wp_version;

$core_updates = FALSE;

$plugin_updates = FALSE;

wp_version_check();

wp_update_plugins();

wp_update_themes();

if (function_exists('get_transient'))

{

$core = get_transient('update_core');

$plugins = get_transient('update_plugins');

$themes = get_transient('update_themes');

if ($core == FALSE)

{

$core = get_site_transient('update_core');

$plugins = get_site_transient('update_plugins');

$themes = get_site_transient('update_themes');

}

}

else

{

$core = get_site_transient('update_core');

$plugins = get_site_transient('update_plugins');

$themes = get_site_transient('update_themes');

}

$core_available = FALSE;

$plugin_available = FALSE;

$theme_available = FALSE;

foreach ($core->updates as $core_update)

{

if ($core_update->current != $wp_version)

{

$core_available = TRUE;

}

}

$plugin_available = (count($plugins->response) > 0);

$theme_available = (count($themes->response) > 0);

$text = array();

if ($core_available)

$text[] = 'Core updates available';

if ($plugin_available)

$text[] = 'Plugin updates available';

if ($theme_available)

$text[] = 'Theme updates available';

$status = 'OK';

if ($core_available)

{

$status = 'CRITICAL';

}

elseif ($theme_available OR $plugin_available)

{

$status = 'WARNING';

}

echo $status . '#' . implode($text, ';');