Integration of CalDAV for calender

[fufiderheld]

I wanted to ask if it is possible to add an integration for CalDAV calender, because I am using a zimbra Mailserver and this would be really awesome. :-)
Also this could be used in a lot of other scenarios.

Thanks Wolfgang

[evilguy4000]

Added to the latest version

[fufiderheld]

First of all, thanks for adding that fast. I am speechless.

But I'll get some errors when trying to connect, after adding the data, i want to click on save, and i come back into the integration overview but can't click in the integration again, because I get an error message. I only can come back after entering the URL manuell for the integration.
Doesn't mather if I enter the server URl or the Calender URL or both. But I never can click on test settings I only get "Integration error"
Docker Logs only put out 200 which I guess tells me everything is fine, BUT the sync never happens.
timetracker-app | 2025-12-21 08:00:00,032 INFO: Syncing integration 3 (caldav_calendar)... [in /app/app/utils/scheduled_tasks.py:716] timetracker-app | 2025-12-21 08:00:01,611 INFO: Successfully synced integration 3 (caldav_calendar): 0 items [in /app/app/utils/scheduled_tasks.py:725]

root@timetracker:/opt/TimeTracker# docker compose logs --tail=100 app | grep -i error timetracker-app | 172.18.0.9 - - [21/Dec/2025:21:43:14 +0100] "GET /static/error-handling-enhanced.js HTTP/1.0" 304 0 "https://192.168.0.158/integrations" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36" root@timetracker:/opt/TimeTracker#

If I can help with more information please tell me what would be helpful. Greetings Wolfgang

[evilguy4000]

@fufiderheld can you test with the latest version V4.7.1 , i try to do my best with CalDav, but have never worked with it before.

[fufiderheld]

Didn't do any change for me. Still the same errors exist.
I can give you an account to my zimbra server, maybe that helps?
Or I don't know how I can help.
What i realised, is that the caldav app synced something from my Zimbra Kalender TO TimeTracker, but I don't know how and why ;-)

Greetings Wolfgang

[evilguy4000]

@fufiderheld I've adapted it some more, agenda items should sync automatically.

[evilguy4000]

@fufiderheld any update?

[fufiderheld]

Sry for the late response.
First I updated to the last version 4.9.6
I don't know what I am doing wrong.
So now you added OAuth, but my Zimbra mailserver doesnt have that, and now I can't put my Username & Password, these Fields are no longer there.

After clicking the "Test connection" button i get the message "Error, Integration not found"
Same appears after clicking on "View Details" or on "Sync now"
Docker Logs are not really helpful:

"root@timetracker:/opt/TimeTracker# docker compose logs --tail=200 app | grep -i error
timetracker-app  | 172.18.0.9 - - [05/Jan/2026:19:19:09 +0100] "GET /static/error-handling-enhanced.js HTTP/1.0" 304 0 "https://192.168.0.157/integrations/caldav_calendar/manage" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36"
timetracker-app  | 172.18.0.9 - - [05/Jan/2026:19:19:37 +0100] "GET /static/error-handling-enhanced.js HTTP/1.0" 304 0 "https://192.168.0.157/integrations" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36"
timetracker-app  | 172.18.0.9 - - [05/Jan/2026:19:19:50 +0100] "GET /static/error-handling-enhanced.js HTTP/1.0" 304 0 "https://192.168.0.157/integrations/caldav_calendar/manage" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36"
timetracker-app  | 172.18.0.9 - - [05/Jan/2026:19:19:53 +0100] "GET /static/error-handling-enhanced.js HTTP/1.0" 304 0 "https://192.168.0.157/integrations" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36"
timetracker-app  | 172.18.0.9 - - [05/Jan/2026:19:20:02 +0100] "GET /static/error-handling-enhanced.js HTTP/1.0" 304 0 "https://192.168.0.157/integrations/caldav_calendar/manage" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36"
root@timetracker:/opt/TimeTracker#"

[evilguy4000]

@fufiderheld can you try with the latest version ?

[fufiderheld]

morning, I did update to 4.9.11 now and now I can click on view details, when i want I go to there on test connection i get "integration not found"
when i go on "Sync now" i get "logger is not defined:

Greetings Wolfgang

[evilguy4000]

@fufiderheld can you perhaps create test credentials for me and send them to me: info@drytrix.com
then i will debug your situation in particular.

[fufiderheld]

sure, so you need a user for my timetracker app or to my mailserver? Or both?
Greetings Wolfgang

[evilguy4000]

@fufiderheld let's start with the mailserver so i can test the integration on my side.

[evilguy4000]

@fufiderheld it works with version 4.9.12

[fufiderheld]

You are my hero!
It works, thanks a lot!!! :-)

[evilguy4000]

✅ Issue Closed

Thanks for your report and contribution!
This issue has now been resolved or is no longer active.

If you’d like to support the project and future development, you can ☕ buy me a coffee— it really helps keep things going.

Thanks again for helping improve this project! 🙌