Shared Deck calendar not found for PROPPATCH if shared without edit rights

[ChristophWurst]

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.

Describe the bug

I have a bunch of Deck boards shared with me. Some are read-write, some are read-only. When I check the option to show Deck Calendars in the bottom left the boards show as calendars in Calendar. However, I can only toggle visibility for board calendars where I have edit rights.

To Reproduce
Steps to reproduce the behavior:

1. Share a calendar from user A to user B read-only
2. Open the Calendar app as user B
3. Toggle the calendar visibility
4. See an error

Expected behavior

Visibility changes

Screenshots

see above

Server details

Operating system:

Arch, btw

Web server:

Database:

PHP version:

Nextcloud version: 22.1 (company cloud)

---

This bug was originally identified by @AndyScherzinger. He's not able to toggle off the same board that I'm unable to toggle on.

[ChristophWurst]

I tried to understand why this could happen from reading the code of \OCA\Deck\DAV\CalendarPlugin but I don't see any difference between the two paths. If a calendar is listed for the calendar home then it should also be found when directly accessed.

[stefan-niedermann]

Isn't this a duplicate of #2399 🤔?

[ChristophWurst]

No. I don't want to write to the calendar. I want to change one of its props. Those props go to caldav's custom property backend. This works find for most board, only the ones shared read-only don't work because the calendar node is not found.