librenms-librenms/html/includes/table/eventlog.inc.php

<?php

$where = '1';

if (is_numeric($_POST['device'])) {
    $where  .= ' AND E.host = ?';
    $param[] = $_POST['device'];
}

if ($_POST['string']) {
    $where  .= ' AND E.message LIKE ?';
    $param[] = '%'.$_POST['string'].'%';
}

if ($_SESSION['userlevel'] >= '5') {
    $sql = " FROM `eventlog` AS E LEFT JOIN `devices` AS `D` ON `E`.`host`=`D`.`device_id` WHERE $where";
}
else {
    $sql     = " FROM `eventlog` AS E, devices_perms AS P WHERE $where AND E.host = P.device_id AND P.user_id = ?";
    $param[] = $_SESSION['user_id'];
}

if (isset($searchPhrase) && !empty($searchPhrase)) {
    $sql .= " AND (`D`.`hostname` LIKE '%$searchPhrase%' OR `E`.`datetime` LIKE '%$searchPhrase%' OR `E`.`message` LIKE '%$searchPhrase%' OR `E`.`type` LIKE '%$searchPhrase%')";
}

$count_sql = "SELECT COUNT(datetime) $sql";
$total     = dbFetchCell($count_sql, $param);
if (empty($total)) {
    $total = 0;
}

if (!isset($sort) || empty($sort)) {
    $sort = 'datetime DESC';
}

$sql .= " ORDER BY $sort";

if (isset($current)) {
    $limit_low  = (($current * $rowCount) - ($rowCount));
    $limit_high = $rowCount;
}

if ($rowCount != -1) {
    $sql .= " LIMIT $limit_low,$limit_high";
}

$sql = "SELECT `E`.*,DATE_FORMAT(datetime, '".$config['dateformat']['mysql']['compact']."') as humandate $sql";

foreach (dbFetchRows($sql, $param) as $eventlog) {
    $dev = device_by_id_cache($eventlog['host']);
    if ($eventlog['type'] == 'interface') {
        $this_if = ifLabel(getifbyid($eventlog['reference']));
        $type    = '<b>'.generate_port_link($this_if, makeshortif(strtolower($this_if['label']))).'</b>';
    }
    else {
        $type = 'System';
    }

    $response[] = array(
        'datetime' => $eventlog['humandate'],
        'hostname' => generate_device_link($dev, shorthost($dev['hostname'])),
        'type'     => $type,
        'message'  => htmlspecialchars($eventlog['message']),
    );
}

$output = array(
    'current'  => $current,
    'rowCount' => $rowCount,
    'rows'     => $response,
    'total'    => $total,
);
echo _json_encode($output);