Tasks with time (start and/or end) not getting synced from server to device

[tzeumer]

This is somewhat similar to #753 but it is about tasks. The server software run by my university is Sogo (https://www.sogo.nu).

When I create a task with any (start or end) date/time setting on the Android device, it gets synchronized, but vanishes from the device immediately (jtx and OpenTasks - tried both). It shows up in Sogo and Thunderbird. Removing the time again, it gets synched back to the device.

Until yesterday I only used very few tasks as a reminder, but never set a date (or made it part of the task name). So this was pretty confusing. Especially since the old entries were kept, even when setting a date.

[rfc2822]

During synchronization, DAVx5 asks the server to list the VTODO entries using REPORT calendar-query.

Sounds like the server wouldn't list tasks without date as current entries in the reply to this request.

Can you maybe provide a test account (with reference to this issue) to https://www.davx5.com/support so that I can have a look? Unfortunately I don't have a SOGo instance for testing.

[rfc2822]

Hm, I'm not sure what the url really would be. I thought https://sogo.tuhh.de/SOGo/dav/MYUSERNAME/task/list. But all I tried are wrong.

The URL seems to be https://sogo.tuhh.de/SOGo/dav/MYUSERNAME/Calendar/7D3A-...-58562780/.

Yet I checked the Thunderbird developer console when adding/deleting tasks. Immediately after the PUT query for my "TestTask" Thunderbird makes another query using REPORT as method. And that looks a bit more like your "Request 2". I'm not sure if that is helpful at all.

No, it's the REPORT calendar-multiget, which just downloads the task again. I'd be interested in the PROPFIND vs REPORT calendar-query.

[tzeumer]

Request 1 (I think Thunderbird will do it like this):

The result is here https://cloud.tuhh.de/index.php/s/kPWgCT8ESjxiF3c

Request 2 (like DAVx5 does it, I think it will not report anything on your server, although it should):

As you expected there is no result

[rfc2822]

Then it's a server problem and should be reported to SOGo. Please include both requests + results in the report and a link to this discussion, this should be enough information. If anything else is needed, I'm sure we manage to provide it.

[tzeumer]

Thank you very much. But I'm a bit confused, since Davx5 and tasks with date do work with the Sogo demo server. Yet the REPORT query to demo.sogo.nu seems not to return anything too 🤔

curl -nvu sogo1:sogo -X REPORT --data @- -H 'Depth: 1' https://demo.sogo.nu/SOGo/dav/sogo1/Calendar/personal/ <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<CAL:calendar-query xmlns="DAV:" xmlns:CAL="urn:ietf:params:xml:ns:caldav">
  <prop>
    <getetag/>
  </prop>
  <CAL:filter>
    <CAL:comp-filter name="VCALENDAR">
      <CAL:comp-filter name="VTODO"/>
    </CAL:comp-filter>
  </CAL:filter>
</CAL:calendar-query>
EOF

Anyway, it seems to be a problem only with the setup of my university's server. So I think it is very ok to close this ticket.

[rfc2822]

Maybe you can report it to the IT department that manages the SOGo of your university nevertheless :)

[tzeumer]

I switched to my private server (running Baikal) for tasks and everything is fine. To me it looks like it is not a Davx5 problem with my university's Sogo, since the Sogo demo server works fine with tasks - with Davx5 and Thunderbird. I wouldn't think there's much to (mis)configure (client or server side), but to me that seems like the most likely issue here.

I really appreciate all the time you put into this issue @rfc2822. But if I am the only one having this problem, it may not be worth pursuing.

(However, if more tests would be useful for Davx5 in general, I would be happy to provide them).