From 242bfac96bd5278cd0d799dc50c80292cdb6f845 Mon Sep 17 00:00:00 2001
From: Dicken <dicken@noreply.localhost>
Date: Tue, 26 May 2026 14:29:55 +0200
Subject: [PATCH] Dateien nach "backend/src/routes" hochladen

---
 backend/src/routes/calendar.js | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 backend/src/routes/calendar.js

diff --git a/backend/src/routes/calendar.js b/backend/src/routes/calendar.js
new file mode 100644
index 0000000..7084600
--- /dev/null
+++ b/backend/src/routes/calendar.js
@@ -0,0 +1,29 @@
+const express = require('express');
+const https   = require('https');
+const http    = require('http');
+const { authenticate } = require('../middleware/auth');
+const router  = express.Router();
+
+// Fetch iCal feed server-side (avoids CORS)
+router.get('/fetch', authenticate, (req, res) => {
+  const { url } = req.query;
+  if (!url) return res.status(400).json({ error: 'URL fehlt' });
+  let parsed;
+  try { parsed = new URL(url); }
+  catch { return res.status(400).json({ error: 'Ungültige URL' }); }
+  if (!['http:','https:'].includes(parsed.protocol))
+    return res.status(400).json({ error: 'Nur HTTP/HTTPS erlaubt' });
+
+  const lib = parsed.protocol === 'https:' ? https : http;
+  const req2 = lib.get(url, { headers:{ 'User-Agent':'DickenDock/1.0' } }, r2 => {
+    if (r2.statusCode !== 200)
+      return res.status(502).json({ error: `Feed antwortet mit ${r2.statusCode}` });
+    let data = '';
+    r2.on('data', d => { data += d; if (data.length > 2*1024*1024) { r2.destroy(); res.status(413).json({ error: 'Feed zu groß (max 2MB)' }); } });
+    r2.on('end', () => res.type('text/calendar').send(data));
+  });
+  req2.on('error', e => res.status(502).json({ error: e.message }));
+  req2.setTimeout(8000, () => { req2.destroy(); res.status(504).json({ error: 'Timeout' }); });
+});
+
+module.exports = router;