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

<?php

$where = 1;

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

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

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

$count_sql = "SELECT COUNT(`E`.`id`) $sql";
$total = dbFetchCell($count_sql,$param);

if (!isset($sort) || empty($sort)) {
    $sort = 'time_logged 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 D.device_id,name AS alert,state,time_logged,DATE_FORMAT(time_logged, '%D %b %Y %T') as humandate $sql";

foreach (dbFetchRows($sql,$param) as $alertlog) {
    $dev = device_by_id_cache($alertlog['device_id']);
    $alert_state = $alertlog['state'];
    if ($alert_state=='0') {
        $glyph_icon = 'ok';
        $glyph_color = 'green';
        $text = 'Ok';
    }
    elseif ($alert_state=='1') {
        $glyph_icon = 'remove';
        $glyph_color = 'red';
        $text = 'Alert';
    }
    elseif ($alert_state=='2') {
        $glyph_icon = 'info-sign';
        $glyph_color = 'lightgrey';
        $text = 'Ack';
    }
    elseif ($alert_state=='3') {
        $glyph_icon = 'arrow-down';
        $glyph_color = 'orange';
        $text = 'Worse';
    }
    elseif ($alert_state=='4') {
        $glyph_icon = 'arrow-up';
        $glyph_color = 'khaki';
        $text = 'Better';
    }
    $response[] = array('time_logged'=>$alertlog['humandate'],
                        'hostname'=>generate_device_link($dev, shorthost($dev['hostname'])),
                        'alert'=>htmlspecialchars($alertlog['alert']),
                        'status'=>"<b><span class='glyphicon glyphicon-".$glyph_icon."' style='color:".$glyph_color."'></span> $text</b>");
}

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