Cronline/data/update.php

<?php
	$CONFIG = array(); $services = array();
	include(($_SERVER['DOCUMENT_ROOT']?:getcwd()).'/data/config.php');

	$SQL = new PDO($CONFIG['db_host'], $CONFIG['db_username'], $CONFIG['db_password']);
	if ($SQL->errorCode() && $SQL->errorCode() !== '00000') {
		die($SQL->errorCode());
	}

	$SQL->query('CREATE TABLE IF NOT EXISTS service_status(service TEXT, timestamp DATETIME DEFAULT CURRENT_TIMESTAMP, ping INTEGER, status INTEGER, PRIMARY KEY(service, timestamp))');

	foreach($CONFIG['services'] as $id=>$data) {
		$services[$id] = array(
			'name'=>$data['name'],
			'message'=>$data['message']
		);
		if (isset($data['icon'])) $services[$id]['icon'] = $data['icon'];
		$timestamp = date('Y-m-d H:i:s');
		// Ping is in ms. Status is 0 if okay, +1 for each unreachable, and -1 if offline completely.
		$ping = -1; $status = 0;
		// Check for ports (with ping)
		if (isset($data['ports'])) {
			$pings = array(); $i = 0;
			foreach ($data['ports'] as $port) {
				$starttime = microtime(true);
				if ($fp = @fsockopen($data['hostname'],$port,$errno,$errstr,15)) {
					$stoptime  = microtime(true);
					$newping = ($stoptime - $starttime) * 1000;
					$pings[$i++] = $newping;
				} else $status++;
			}
			if ($i == 1)
				$ping = round($pings[0], 2);
			else if ($i > 0 && ($ping_sum = array_sum($pings)) > 0)
				$ping = round($ping_sum / $i, 2);
		}

		// Check for PID (status)
		if (isset($data['pidfile'])) {
			if (!posix_getpgid(file_get_contents($data['pidfile'])))
				$status = -1;
		}

		// Check for process (status)
		if (isset($data['process']) && !isset($data['pidfile'])) {
			$otp; $rtn;
			exec('pgrep -fl "'.$data['process'].'"', $otp, $rtn);
			if ($rtn!=0) $status = -1;
		}

		if ($stmt = $SQL->prepare('INSERT INTO service_status(service, timestamp, ping, status) VALUES (?, ?, ?, ?)')) {
			$stmt->bindParam(1, $id);
			$stmt->bindParam(2, $timestamp);
			$stmt->bindParam(3, $ping);
			$stmt->bindParam(4, $status);
			$stmt->execute();
			$stmt->closeCursor();
		}

		if ($stmt = $SQL->prepare('SELECT timestamp,ping,status FROM service_status WHERE service = ? ORDER BY timestamp DESC LIMIT ?')) {
			$stmt->bindParam(1, $id);
			$stmt->bindParam(2, $CONFIG['max_slices']);
			if ($stmt->execute()) {
				$services[$id]['status'] = array();
				while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
					array_push($services[$id]['status'], $row);
				}
			}
			$stmt->closeCursor();
		}
		$services[$id]['status'] = array_reverse($services[$id]['status']);

		if ($stmt = $SQL->prepare('DELETE FROM service_status WHERE service = :service AND timestamp NOT IN ( SELECT timestamp FROM service_status WHERE service = :service ORDER BY timestamp DESC LIMIT :limit )')) {
			$stmt->bindParam('service', $id);
			$stmt->bindParam('limit', $CONFIG['max_slices']);
			$stmt->execute();
			$stmt->closeCursor();
		}
	}
?>
<!DOCTYPE html>
<html>
	<head>
		<title><?=$CONFIG['page_name'];?></title>
		<meta property='og:site_name' content='<?=$CONFIG['site_name'];?>' />
		<meta property='og:image' content='favicon.png' />
		<meta property='og:title' content='<?=$CONFIG['page_name'];?>' />
		<meta property='og:description' content='<?=$CONFIG['site_description'];?>' />
		<meta name='viewport' content='width=device-width, initial-scale=1' />
		<meta http-equiv='Content-Type' content='text/html; charset=utf-8' />
		<link rel='icon' href='favicon.png' type='image/png' sizes='64x64' />
		<link rel='icon' href='favicon.ico' type='image/x-icon' sizes='64x64' />
		<link rel='stylesheet' href='style.css' />
	</head>
	<body>
		<center class='page'>
			<div class='banner'><img src='banner.png' width="640" /><br /><h3>Status Page</h3><a><?=$CONFIG['site_message'];?></a></div>
			<?php foreach ($services as $id=>$service): ?>
			<table class='status' id='<?=$id;?>'>
				<tr class='title'>
					<td colspan='<?=count($service['status']);?>'>
						<?php if (!empty($service['message'])): ?>
						<details>
							<summary><b><?php if (!empty($service['icon'])): ?><img src='<?=$service['icon'];?>' height='16' /> <?php endif ?><?=$service['name'];?></b></summary>
							<?=$service['message'];?>
						</details>
						<?php else: ?>
							<b><?php if (!empty($service['icon'])): ?><img src='<?=$service['icon'];?>' height='16' /> <?php endif ?><?=$service['name'];?></b>
						<?php endif ?>
					</td
				</tr>
				<tr>
					<?php foreach ($service['status'] as $slice): ?>
					<?php
					$cell_status; $bgclrstyle = '';
					$_time = date($CONFIG['timestamp_format'], strtotime($slice['timestamp']));
					$_ping = $slice['ping'].'ms';

					if ($slice['status'] > 0 || ($slice['status'] == -1 && $slice['ping'] > 0)) {
						$cell_status = 'partial';
						$bgclrstyle = sprintf("#%02x%02x%02x", 255, 128, 0);
					} else if ($slice['status'] == -1) {
						$cell_status = 'offline';
						$bgclrstyle = sprintf("#%02x%02x%02x", 255, 0, 0);
					} else {
						$cell_status = 'ok';
						$bgclrstyle = sprintf(
							"#%02x%02x%02x",
							$slice['ping']!=-1?max(0, min(255, round($slice['ping'])*2)):0,
							max(0, min(255, 128+(round($slice['ping'])/2))),
							0
						);
					}
					?>

					<td class='<?=$cell_status;?>' bgcolor='<?=$bgclrstyle;?>' value='<?=$_ping."\n".strtoupper($cell_status).' - '.$_time;?>'></td>
					<?php endforeach ?>
				</tr>
			</table>
			<?php endforeach ?>
			<hr />
		</center>
	</body>
</html>