Adminator
f22c5ebbfe
- PHP/MySQL Backend (XAMPP + Produktionsserver) - Front-Controller, API-Endpunkte, Session-Management - Flussmanagement-Simulation (Echtzeit, Punkt-basierter Fluss) - Stadt & Raumplanung (Prototyp, Top-Down Kachelsystem) - Klimawaechter 3D: Deiche kleiner, Baeume kippen, Budget angepasst - persistence.ts: Dualer Speicher (localStorage + Server-API) - 6 Unit-Test-Dateien fuer bestehende Simulationen Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
89 lines
2.5 KiB
PHP
89 lines
2.5 KiB
PHP
<?php
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/**
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* GeoGraSim — Session Management
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* Schueler: UUID-Cookie (anonym, kein Login)
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* Lehrkraefte: PHP-Session mit teacher_id
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*/
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class Session {
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const COOKIE_NAME = 'ggs_session';
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const COOKIE_TTL = 86400 * 30; // 30 Tage
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public static function start(): void {
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if (session_status() === PHP_SESSION_NONE) {
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session_start();
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}
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}
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/** Schueler-Session-ID aus Cookie */
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public static function studentId(): ?string {
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return $_COOKIE[self::COOKIE_NAME] ?? null;
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}
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/** Neue Schueler-Session erstellen */
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public static function createStudent(int $classId, string $displayName = ''): string {
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$uuid = sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
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mt_rand(0, 0xffff), mt_rand(0, 0xffff),
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mt_rand(0, 0xffff),
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mt_rand(0, 0x0fff) | 0x4000,
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mt_rand(0, 0x3fff) | 0x8000,
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mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff)
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);
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$db = Database::get();
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$db->execute(
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'INSERT INTO student_sessions (id, class_id, display_name) VALUES (?, ?, ?)',
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[$uuid, $classId, $displayName]
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);
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setcookie(self::COOKIE_NAME, $uuid, [
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'expires' => time() + self::COOKIE_TTL,
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'path' => BASE_PATH . '/',
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'samesite' => 'Lax',
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'secure' => IS_PRODUCTION,
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'httponly' => true,
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]);
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return $uuid;
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}
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/** API-Guard: 401 wenn keine Session */
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public static function requireStudent(): string {
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$id = self::studentId();
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if (!$id) {
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http_response_code(401);
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echo json_encode(['error' => 'Keine Session']);
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exit;
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}
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return $id;
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}
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/** Lehrer eingeloggt? */
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public static function teacherId(): ?int {
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return $_SESSION['teacher_id'] ?? null;
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}
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/** Lehrer-Login */
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public static function loginTeacher(int $teacherId): void {
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self::start();
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$_SESSION['teacher_id'] = $teacherId;
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}
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/** Lehrer-Guard: 401 wenn nicht eingeloggt */
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public static function requireTeacher(): int {
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$id = self::teacherId();
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if (!$id) {
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http_response_code(401);
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echo json_encode(['error' => 'Nicht eingeloggt']);
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exit;
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}
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return $id;
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}
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public static function logout(): void {
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self::start();
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session_destroy();
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setcookie(self::COOKIE_NAME, '', ['expires' => 1, 'path' => BASE_PATH . '/']);
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}
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}
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