Error if file name or path includes Umlauts - Unexpected server response (500) while retrieving PDF

[XueSheng-GIT]

How to use GitHub

• Please use the 👍 reaction to show that you are affected by the same issue.
• Please don't comment if you have no relevant information to add. It's just extra noise for everyone subscribed to this issue.
• Subscribe to receive notifications on status change and new comments.

---

Steps to reproduce

1. Click on a eml file with Umlauts in it's name or path (e.g. Kündigung.eml)

Expected behaviour

Mail should be shown without errors.

Actual behaviour

Empty screen is shown (see firefox debug log at Browser log section below).
Unexpected server response (500) while retrieving PDF

Server configuration

Web server: Apache

Database: PostgreSQL

PHP version: 8.3

Nextcloud version: 30.0.2

List of activated apps

If you have access to your command line run e.g.:
sudo -u www-data php occ app:list
from within your Nextcloud installation folder

Nextcloud configuration

If you have access to your command line run e.g.:
sudo -u www-data php occ config:list system
from within your Nextcloud installation folder

Browser

Browser name: Firefox

Browser version: 132

Operating system: Ubuntu

Browser log

21:54:49.433 Unexpected server response.

PDF.js v3.11.174 (build: ce8716743)
Message: Unexpected server response (500) while retrieving PDF "https://cloud.domain.de/apps/files_emailviewer/convert?fileId=2781039". app.js:1249:12
    _otherError app.js:1249
    _documentError app.js:1216
    open app.js:1129
    (Async: promise callback)
    open app.js:1128
    (Async: promise callback)
    open app.js:1111
    run app.js:787
    webViewerLoad viewer.js:211
    (Async: EventListener.handleEvent)
    <anonym> viewer.js:224
    <anonym> viewer.js:14095
    <anonym> viewer.js:14097

21:54:49.434 Uncaught (in promise) 
Object { message: 'Unexpected server response (500) while retrieving PDF "https://cloud.domain.de/apps/files_emailviewer/convert?fileId=2781039".', name: "UnexpectedResponseException", status: 500, stack: "BaseExceptionClosure@https://cloud.domain.de/apps/files_pdfviewer/js/pdfjs/build/pdf.js?v=3.0.0:446:29\n__webpack_modules__<@https://cloud.domain.de/apps/files_pdfviewer/js/pdfjs/build/pdf.js?v=3.0.0:449:2\n__w_pdfjs_require__@https://cloud.domain.de/apps/files_pdfviewer/js/pdfjs/build/pdf.js?v=3.0.0:17849:41\n@https://cloud.domain.de/apps/files_pdfviewer/js/pdfjs/build/pdf.js?v=3.0.0:18129:32\n@https://cloud.domain.de/apps/files_pdfviewer/js/pdfjs/build/pdf.js?v=3.0.0:18140:3\n@https://cloud.domain.de/apps/files_pdfviewer/js/pdfjs/build/pdf.js?v=3.0.0:18143:12\nwebpackUniversalModuleDefinition@https://cloud.domain.de/apps/files_pdfviewer/js/pdfjs/build/pdf.js?v=3.0.0:31:50\n@https://cloud.domain.de/apps/files_pdfviewer/js/pdfjs/build/pdf.js?v=3.0.0:32:3\n" }

[kesselb]

Thank you for taking the time to try files_emailviewer.

Anything in your nextcloud.log?

[XueSheng-GIT]

@kesselb Following warning is logged:

{"reqId":"rcKDWHblmbvYikFi864T","level":2,"time":"2024-11-11T21:07:30+01:00","remoteAddr":"192.168.5.217","user":"admin","app":"files_emailviewer","method":"GET","url":"/apps/files_emailviewer/convert?fileId=2939817","message":"Conversion did not finish","userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:132.0) Gecko/20100101 Firefox/132.0","version":"30.0.2.2","exception":{"Exception":"OCA\\Files_EmailViewer\\Exception\\ConversionException","Message":"Conversion did not finish","Code":0,"Trace":[{"file":"/var/www/nextcloud/apps/files_emailviewer/lib/Controller/PageController.php","line":69,"function":"convert","class":"OCA\\Files_EmailViewer\\Service\\ConversionService","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":208,"function":"convert","class":"OCA\\Files_EmailViewer\\Controller\\PageController","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":114,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/App.php","line":161,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/Route/Router.php","line":302,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/var/www/nextcloud/lib/base.php","line":1001,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/var/www/nextcloud/index.php","line":24,"function":"handleRequest","class":"OC","type":"::"}],"File":"/var/www/nextcloud/apps/files_emailviewer/lib/Service/ConversionService.php","Line":58,"message":"Conversion did not finish","exception":[],"CustomMessage":"Conversion did not finish"},"id":"6732641f2de98"}