Eduard Iten
7dbb374360
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Build and Deploy / build-and-deploy (push) Successful in 11s
108 lines
3.4 KiB
PHP
108 lines
3.4 KiB
PHP
<?php
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session_start();
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// --- OIDC Konfiguration ---
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$client_id = 'iten-pro';
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$client_secret = '1qd6v3kCwpkdRu48pgyYF7axT9dywipqEvwHqWM9OiB53bQC'; // Hier im Klartext eintragen
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$authelia_url = 'https://auth.iten.pro';
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$redirect_uri = 'https://iten.pro/auth.php'; // Muss exakt mit Authelia config übereinstimmen
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// 1. OIDC Callback verarbeiten (Rückkehr von Authelia)
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if (isset($_GET['code']) && isset($_GET['state'])) {
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if ($_GET['state'] !== $_SESSION['oauth_state']) {
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die('Sicherheitsfehler: State Mismatch.');
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}
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// Autorisierungscode gegen Token tauschen
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$ch = curl_init($authelia_url . '/api/oidc/token');
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curl_setopt($ch, CURLOPT_RESOLVE, ["auth.iten.pro:443:84.227.207.55"]);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_POST, true);
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curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query([
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'grant_type' => 'authorization_code',
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'client_id' => $client_id,
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'client_secret' => $client_secret,
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'redirect_uri' => $redirect_uri,
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'code' => $_GET['code']
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]));
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$response = curl_exec($ch);
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if ($response === false) {
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$error_msg = curl_error($ch);
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curl_close($ch);
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die('Kritischer cURL-Netzwerkfehler: ' . $error_msg);
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}
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curl_close($ch);
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$data = json_decode($response, true);
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if (isset($data['access_token'])) {
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// Erfolgreich eingeloggt
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$_SESSION['authenticated'] = true;
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// Zurück zur ursprünglich angeforderten Route umleiten
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$target = $_SESSION['auth_target_route'] ?? '/';
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header('Location: /' . ltrim($target, '/'));
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exit;
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} else {
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die('Fehler bei der Token-Generierung: ' . htmlspecialchars($response));
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}
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}
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// 2. Authentifizierungsstatus prüfen
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$is_logged_in = isset($_SESSION['authenticated']) && $_SESSION['authenticated'] === true;
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if (!$is_logged_in) {
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// Ursprüngliches Ziel speichern, um nach dem Login dorthin zurückzukehren
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$_SESSION['auth_target_route'] = $_GET['route'] ?? '';
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// CSRF-Schutz generieren
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$_SESSION['oauth_state'] = bin2hex(random_bytes(16));
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// Umleitung zur Authelia-Loginseite
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$auth_url = $authelia_url . '/api/oidc/authorization?' . http_build_query([
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'client_id' => $client_id,
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'response_type' => 'code',
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'redirect_uri' => $redirect_uri,
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'state' => $_SESSION['oauth_state'],
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'scope' => 'openid profile email'
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]);
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header('Location: ' . $auth_url);
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exit;
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}
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// 3. Auslieferung der statischen Astro-Datei
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$route = $_GET['route'] ?? '';
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// Wenn auth.php direkt aufgerufen wurde (z.B. nach Login-Callback ohne Ziel)
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if ($route === '') {
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header('Location: /');
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exit;
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}
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$route = trim($route, '/');
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$base_dir = realpath(__DIR__);
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$target_file = $base_dir . '/' . $route;
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if (is_dir($target_file)) {
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$target_file = rtrim($target_file, '/') . '/index.html';
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} elseif (!str_ends_with($target_file, '.html') && file_exists($target_file . '/index.html')) {
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$target_file .= '/index.html';
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} elseif (!str_ends_with($target_file, '.html')) {
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$target_file .= '.html';
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}
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$real_target = realpath($target_file);
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// Path Traversal verhindern
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if ($real_target && file_exists($real_target) && strpos($real_target, $base_dir) === 0) {
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header('Content-Type: text/html');
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readfile($real_target);
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exit;
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}
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header("HTTP/1.0 404 Not Found");
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echo "404 - Geschützte Datei nicht gefunden";
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exit; |