Bug 438118

Summary:	Akonadi fails to put new caldav item to Zimbra server
Product:	[Frameworks and Libraries] Akonadi	Reporter:	dthoma
Component:	DAV Resource	Assignee:	kdepim bugs <pim-bugs-null>
Status:	REPORTED ---
Severity:	crash	CC:	dthoma
Priority:	NOR
Version First Reported In:	5.17.1
Target Milestone:	---
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description dthoma 2021-06-05 14:22:38 UTC

When a new calendar entry is created, akonadi uses HTTP-PUT to create the entry on the server site.

Zimbra however has the limitation that the ics-files have to be named using an UUID in the common format a5792563-68fc-4387-9759-72c95c5ea164. See https://wiki.zimbra.com/wiki/CalDav_Support under "Known Limitations".

Akonadi should either use UUIDs as file names or use POST to let the server choose the name.

As Akondadi uses some different format, the put-request fails and the Resource is set to offline and not synchronized anymore.

I am under the impression that this worked recently. I'm running the stable version of kde neon, so a recent version might have been working, but I cannot guarantee that.

Of course one might consider this a bug/missing feature of Zimbra, but it is unlikely that Zimbra will change that behavior as it seems to be due to how they organize calendar entries.