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refactor(astrolabe): replace client-side PDF.js with server-side PyMuPDF rendering

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Replace the client-side PDF.js viewer with server-side rendering using PyMuPDF.
This avoids CSP worker restrictions and ES private field access issues that
affected Chromium browsers.

Changes:
- Add /api/v1/pdf-preview endpoint to MCP server (management.py)
- Add pdf-preview route and controller action in Astrolabe PHP backend
- Refactor PDFViewer.vue to display server-rendered PNG images
- Remove pdfjs-dist dependency and client-side PDF loading code
- Use @nextcloud/axios for CSRF token handling in PDFViewer

The server downloads the PDF via WebDAV, renders the requested page with
PyMuPDF at the specified scale, and returns a base64-encoded PNG image.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Chris Coutinho
2026-01-26 20:04:57 +01:00
co-authored by Claude Opus 4.5
parent bc62f2a066
commit d5544a7731
9 changed files with 325 additions and 162 deletions
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third_party/astrolabe/templates/index.php
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@@ -5,10 +5,6 @@ declare(strict_types=1);
use OCA\Astrolabe\AppInfo\Application;
use OCP\Util;
// Load PDF.js loader first (must be external, not bundled by Vite,
// to avoid ES private field transformation issues with fake worker fallback)
// The loader imports pdf.mjs and sets window.pdfjsLib before the main app runs
Util::addScript(Application::APP_ID, 'pdfjs-loader');
Util::addScript(Application::APP_ID, Application::APP_ID . '-main');
Util::addStyle(Application::APP_ID, Application::APP_ID . '-main');