From 589cb18f8c72b83f2c40064f263bfe35a752d298 Mon Sep 17 00:00:00 2001
From: Dicken <webmaster@sermerpartydorf.de>
Date: Fri, 12 Jun 2026 11:06:00 +0200
Subject: [PATCH] fix: Puppeteer nutzt System-Chromium direkt, kein @sparticuz

---
 backend/package.json                      |  5 ++-
 backend/src/tools/paywallkiller/routes.js | 40 ++++++++++++++++++-----
 2 files changed, 33 insertions(+), 12 deletions(-)

diff --git a/backend/package.json b/backend/package.json
index 457055b..f1d10d5 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -8,7 +8,6 @@
     "express": "^4.18.2",
     "jsonwebtoken": "^9.0.2",
     "multer": "^1.4.5-lts.1",
-    "puppeteer-core": "^22.0.0",
-    "@sparticuz/chromium": "^123.0.0"
+    "puppeteer-core": "^22.0.0"
   }
-}
+}
\ No newline at end of file
diff --git a/backend/src/tools/paywallkiller/routes.js b/backend/src/tools/paywallkiller/routes.js
index 7c391fb..f430cf7 100644
--- a/backend/src/tools/paywallkiller/routes.js
+++ b/backend/src/tools/paywallkiller/routes.js
@@ -174,17 +174,39 @@ router.post('/pdf', authenticate, async (req, res) => {
   const tmpFile = path.join('/tmp', `pwk_${crypto.randomBytes(8).toString('hex')}.pdf`);
 
   try {
-    let puppeteer, chromium;
-    try { puppeteer = require('puppeteer-core'); chromium = require('@sparticuz/chromium'); }
-    catch { try { puppeteer = require('puppeteer'); chromium = null; }
+    let puppeteer;
+    try { puppeteer = require('puppeteer-core'); }
+    catch { try { puppeteer = require('puppeteer'); }
     catch { return res.status(500).json({ error: 'PDF-Rendering nicht verfügbar' }); } }
 
-    const launchOptions = chromium
-      ? { args: [...chromium.args, '--no-sandbox', '--disable-setuid-sandbox', '--disable-dev-shm-usage'],
-          defaultViewport: { width: 1280, height: 900 },
-          executablePath: process.env.CHROMIUM_PATH || await chromium.executablePath(),
-          headless: true }
-      : { headless: 'new', args: ['--no-sandbox', '--disable-setuid-sandbox'] };
+    // System-Chromium aus Alpine nutzen (via CHROMIUM_PATH env oder bekannte Pfade)
+    const executablePath = process.env.CHROMIUM_PATH
+      || (() => {
+          const candidates = [
+            '/usr/bin/chromium-browser',
+            '/usr/bin/chromium',
+            '/usr/bin/google-chrome',
+            '/usr/bin/google-chrome-stable',
+          ];
+          const fs2 = require('fs');
+          return candidates.find(p => { try { fs2.accessSync(p); return true; } catch { return false; } })
+            || '/usr/bin/chromium-browser';
+        })();
+
+    const launchOptions = {
+      executablePath,
+      headless: true,
+      args: [
+        '--no-sandbox',
+        '--disable-setuid-sandbox',
+        '--disable-dev-shm-usage',
+        '--disable-gpu',
+        '--disable-software-rasterizer',
+        '--single-process',
+        '--no-zygote',
+      ],
+      defaultViewport: { width: 1280, height: 900 },
+    };
 
     browser = await puppeteer.launch(launchOptions);
     const page = await browser.newPage();