librenms-librenms/includes/html/forms/storage-update.inc.php

<?php

/*
 * LibreNMS
 *
 * Copyright (c) 2015 Neil Lathwood <https://github.com/laf/ http://www.lathwood.co.uk/fa>
 *
 * 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, either version 3 of the License, or (at your
 * option) any later version.  Please see LICENSE.txt at the top level of
 * the source code distribution for details.
 */

header('Content-type: application/json');

if (! Auth::user()->hasGlobalAdmin()) {
    $response = [
        'status' => 'error',
        'message' => 'Need to be admin',
    ];
    echo json_encode($response, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
    exit;
}

$status = 'error';
$message = 'Error updating storage information';

$device_id = $_POST['device_id'];
$storage_id = $_POST['storage_id'];
$data = $_POST['data'];

if (! is_numeric($device_id)) {
    $message = 'Missing device id';
} elseif (! is_numeric($storage_id)) {
    $message = 'Missing storage id';
} elseif (! is_numeric($data)) {
    $message = 'Missing value';
} else {
    if (dbUpdate(['storage_perc_warn' => $data], 'storage', '`storage_id`=? AND `device_id`=?', [$storage_id, $device_id]) >= 0) {
        $message = 'Storage information updated';
        $status = 'ok';
    } else {
        $message = 'Could not update storage information';
    }
}

$response = [
    'status' => $status,
    'message' => $message,
    'extra' => $extra,
];
echo json_encode($response, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);