Davdroid / NC 10.0.1 / OVH : cal & card are synched but without content

[steph38]

Hi,

I just migrated from an
ownloud 9.1.1 to the latest NextCloud 10.0.1.
First of all, a huge thank
you to the developers and the community for this great software.
Since oc5 or 6, it is the
first time I upgraded my server without any issues that were usually
driving me to re-install all from scratch.

Although I have an issue with Contacts & Calendar synch to my mobile.
I checked the following but could not find a working solution:

Davdroid no longer works with NC 10.0.1 / OVH

I just moved from owncloud 9.0.4 to nextcloud 10 and I face a very similar issue as in Davdroid no longer works with NC. I created another issue because 579 is solved. I use davdroid 1.3.1-ose on Android 5.1 Everything works well on web interface and with ligthning on my thunderbird but I am facing this 503 issue (see 579 support ticket) on my mobile phone (and on my wife’s mobile phone as well) since I adopted nextcloud 10. Owncloud webdav client still works well also. Here is the log : http…

Davdroid no longer works with NC

I just migrated from Owncloud to Nextcloud today. I did so by installing Nextcloud and then importing my Database into Nextcloud. So far, Nextcloud works wonderfully but the only thing that doesn’t work is Davdroid, which is an app on Android I use to sync my calendar and contacts with my phone. Authentication passes in Davdroid, it’s even able to see which calendars I have. When it goes to fetch data from my contacts, it all falls apart. Error output is below. Note I changed “https” to “httpx”…

Set up:

• NextCloud 10.0.1 on an OVH
  shared host
• installed a sub-directory
  www/directory_for_nextcloud/
• /data at the root of home
  directory (not in www/directory_for_nextcloud/)
• Mobile: Android 6.0.1
• Mobile Nextcloud sync client: 1.3.1 from F-Droid
• Sync app: DavDroid installed from F-Droid
• also installed: CardDAV-Sync free from Google Play Store
• Calendar app: “S Planner”
• Contacts: default android Contacts app I guess.

What happens:
1- I used the very nice new feature from NextCloud client / Settings / Configure agenda&contact synch (DAVdroid 1.3.0+) …
The generated address is like https://www.mydomain.com/directory_for_nextcloud/
The user account name is retrieved
Then I only type my password to complete the account creation
No visible issue here.

2- Then I go to my account,
select DAVdroid / manage account, and I activate an addressbook and a
calendar to be used, and click on the sync icon.
No visible issue here.

3- Issue > When I use S
Planner or Contacts, I see the addressbook and calendars, but no data
within.

4- working: the creation of
addressbook and calendars from DAVdroid works, but no data within is
exchanged between the phone and the server.

Other tests:

• I tried and tested to sync the addressbook with CardDAV-Sync free but I failed to create an account, whatever the address I use (my.domain.com,
  my.domain.com/directory_for_nextcloud/,
  my.domain.com/directory_for_nextcloud/remote.php/dav/,
  my.domain.com/directory_for_nextcloud/remote.php/dav/addressbooks/users/user_name/my_addressbook,
  with http://, https:// or nothing at the beginning).
  Maybe it still requires the
  carddav instead of dav… i don’t know.
  So difficult to confirm the issue is in DAVdroid or NextCloud or both…

• .htaccess:
  At the root of the web file
  (/www/) i created a basic .htaccess to add
  Redirect 301
  /.well-known/carddav /directory_for_nextcloud/remote.php/dav

Redirect
301 /.well-known/caldav /directory_for_nextcloud/remote.php/dav

• I also tried the SetEnv no-gzip 1 solution from Davdroid no longer works with NC 10.0.1 / OVH
  but without success

• I tried all this again
  with a fresh user account.

Thank you,

[steph38]

Testing again the tips from the 2 posts above, I found the fix:
I added the value ‘/^DAVdroid/’, to the file /lib/base.php

        $incompatibleUserAgents = [
            // OS X Finder
            '/^WebDAVFS/',
            '/^DAVdroid/',
        ];

This now working well