ITSynOpen/server/update.php

<?php

require_once('config.inc.php');
$apikeys = $config['update'];

header('Content-type: text/plain');

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
	echo "Must use POST request method\n";
	return;
}

if (!isset($_GET['apikey']) || !in_array($_GET['apikey'], $apikeys, true)) {
	echo "Invalid API key\n";
	return;
}

if (!isset($_GET['open'])) {
	echo "Missing 'open' request parameter\n";
	return;
}

if ($_GET['open'] === 'true') {
	file_put_contents('status.txt', 'true,'.time());
	echo "true";
} else if ($_GET['open'] === 'false') {
	file_put_contents('status.txt', 'false,'.time());
	echo "false";
} else {
	echo "Invalid 'open' parameter value\n";
	return;
}

?>