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index.php
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Testcenter Status</title>
<style>
* {
font-family: sans-serif;
font-size: large;
}
td {
padding: 10px;
border: 1px solid silver;
}
a, a:visited, .tc_nice {
color: black;
text-shadow: 1px 1px 10px #fff, 1px 1px 10px #ccc;
}
.error {
text-shadow: 1px 1px 10px red, 1px 1px 10px darkred;
}
</style>
</head>
<body>
<?php $config = json_decode(file_get_contents('config.json')); ?>
<h1>Übersicht Server</h1>
<table>
<thead>
<tr>
<td>Anwendung</td>
<td>Url</td>
<td>Titel</td>
<td>Version</td>
</tr>
</thead>
<tbody id="instances">
<?php
error_reporting(E_ALL);
ini_set('display_errors', 1);
function fetch(string $url, array $headers = [], bool $json = true): object | string {
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => $url,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 5,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_HEADER => false,
CURLOPT_FAILONERROR => false, // allows to read body on error
CURLOPT_SSL_VERIFYHOST => 0,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_VERBOSE => 1,
CURLOPT_HTTPHEADER => $headers,
]);
$curlResponse = curl_exec($curl);
$errorCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
if (($errorCode === 0) or ($curlResponse === false)) {
return (object) ['error' => "not available", 'code' => $errorCode];
}
if ($errorCode >= 400) {
return (object) ['error' => $curlResponse, 'code' => $errorCode];
}
return $json ? json_decode($curlResponse) : $curlResponse;
}
function splitVersion(string $versionString): array {
$objectVersionParts = preg_split("/[.-]/", $versionString);
return [
(int) $objectVersionParts[0],
isset($objectVersionParts[1]) ? (int) $objectVersionParts[1] : 0,
isset($objectVersionParts[2]) ? (int) $objectVersionParts[2] : 0,
$objectVersionParts[3] ?? ""
];
}
function colorVersion(int $a, int $b, int $c): string {
$rgb = [0, 0, 0];
$rgb[($a + 2) % 3] = ($b * 100) % 256;
$rgb[$a % 3] = ($c * 30) % 256;
return "rgba($rgb[0], $rgb[1], $rgb[2], 0.6)";
}
function getTestcenter(string $url): array {
$r = fetch("$url/api/system/config");
if (!isset($r->error)) {
return [
'title' => $r->appConfig->appTitle,
'version' => $r->version,
'background' => $r->appConfig->backgroundBody
];
}
return [
'error' => $r->error,
'code' => $r->code
];
}
function getStudio(string $url): array {
$return = [
'title' => 'unknown',
'version' => 'unknown',
'background' => 'white'
];
$r = fetch("$url", [], false);
if (isset($r->error)) {
return [
'error' => $r->error,
'code' => $r->code
];
}
$re = '/src="(main-\S+.js)"/m';
preg_match($re, $r, $matches);
if (!isset($matches[1])) {
return [
'error' => 'could not get main js filename from index.html',
'code' => ''
];
}
$jsFileName = $matches[1];
$re = '/--st-body-background:\s*([^;]+);/m';
preg_match($re, $r, $matches);
$return['background'] = isset($matches[1]) ? $matches[1] : 'silver';
$r = fetch("$url/$jsFileName", [], false);
if (isset($r->error)) {
return [
'error' => $r->error,
'code' => $r->code
];
}
$re = '/provide:\s*"APP_VERSION",\s*useValue:\s*"([^\"]+)"/m';
preg_match($re, $r, $matches2);
if (!isset($matches2[1])) {
return [
'error' => 'could not get version from main js',
'code' => ''
];
}
$return['version'] = $matches2[1];
$r = fetch("$url/api/admin/settings/config", ["App-Version: {$return['version']}"]);
if (isset($r->error)) {
return [
'error' => $r->error,
'code' => $r->code
];
}
$return['title'] = $r->appTitle;
return $return;
}
function getKodierbox(string $url): array {
$return = [
'title' => 'unknown',
'version' => 'unknown',
'background' => 'white'
];
$r = fetch("$url", [], false);
if (isset($r->error)) {
return [
'error' => $r->error,
'code' => $r->code
];
}
$re = '/src="(main\S+.js)"/m';
preg_match($re, $r, $matches);
if (!isset($matches[1])) {
return [
'error' => 'could not get main js filename from index.html',
'code' => ''
];
}
$jsFileName = $matches[1];
$re = '/--st-body-background:\s*([^;]+);/m';
preg_match($re, $r, $matches);
$return['background'] = isset($matches[1]) ? $matches[1] : 'silver';
$r = fetch("$url/$jsFileName", [], false);
if (isset($r->error)) {
return [
'error' => $r->error,
'code' => $r->code
];
}
$re = '/\(\"appVersion\",\s*"([^\"]+)"\)/m';
preg_match($re, $r, $matches2);
if (!isset($matches2[1])) {
return [
'error' => 'could not get version from main js',
'code' => ''
];
}
$return['version'] = $matches2[1];
$re = '/\(\"appTitle\",\s*"([^\"]+)"\)/m';
preg_match($re, $r, $matches2);
if (isset($matches2[1])) {
$return['title'] = $matches2[1];
}
return $return;
}
foreach ($config as $url => $expectedApp) {
echo "";
$d = match ($expectedApp) {
'testcenter' => getTestcenter($url),
'studio' => getStudio($url),
'kodierbox' => getKodierbox($url),
};
if (!isset($d['error'])) {
$versionParts = splitVersion($d['version']);
$color = colorVersion(...$versionParts);
echo "<tr class='ok'>";
echo "<td><h2>$expectedApp</h2></td>";
echo "<td style='background: {$d['background']}'><a href='$url'>$url</a></td>";
echo "<td class='tc_nice' style='background: {$d['background']}'>{$d['title']}</td>";
echo "<td style='background: $color'>{$d['version']}</td>";
echo "</tr>";
} else {
echo "<tr class='error'>";
echo "<td><h2>$expectedApp</h2></td>";
echo "<td><a href='$url'>$url</a></td>";
echo "<td>Error ({$d['code']})</td>";
echo "<td>{$d['error']}</td>";
echo "</tr>";
}
echo "</tr>";
}
?>
</tbody>
</table>
</body>