Subscribed ical-feed is not synced to other devices

[menerond]

Steps to reproduce

1. Subscribe to ical-feed
2. Verify new calendar entries are shown in web interface (which they are).
3. Sync Clients via webdav

Expected behaviour

Via ical-feed imported calendar entries are also synced to other clients and are listed with other calendars to sync.

Actual behaviour

Via ical-feed imported calendar entries are not synced to other clients (KOrganizer and Davdroid) and are not listed with other calendars.

Server configuration

Operating system:
Debian 8.6
Web server:
Apache2.4
Database:
MYSQL
PHP version:
5.6.24
Server version: (see your admin page)
9.1.0
Calendar version: (see the apps page)
1.4.0
Updated from an older installed version or fresh install:
fresh

Login as admin user into your cloud and access 
http://example.com/index.php/settings/integrity/failed 
paste the results here.

No errors have been found.

Are you using encryption: yes/no
no
Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...
Webdav

Client configuration

Browser:
Firefox
Operating system:
Ubuntu and Android
CalDAV-clients:
KOrganizer and Davdroid

[tcitworld]

If it's supposed to work, that's more a server issue.

[ghost]

Ref: owncloud/core#26193

[piggz]

I'd personally find this very useful, as I can export a calendar from outlook as an ical file, and subscribe to it in own/nextcloud, I just need the final step of having it accessible via caldav to get the original calendar on my mobile client (sailfish)

[Pazu]

This actually appears already to work but only via some clients.

On my Android 4.0.4 device which uses CalDAV-Sync v0.4.27, subscribed calendars are offered via CalDAV from my ownCloud 9.0.5 installation.

On my Mac OS X 10.11 machine running Apple's Calendar v8.0 (2092.3), however, subscribed calendars are not offered via CalDAV.

[piggz]

So, can we get a clear steer as to whether or not this is a client or server issue? If they are exported, then they must be exported differently ? Can they be made the same so as not to require client changes?

[tcitworld]

Depends if we want to stick to the CalDAV standard : do we want to expose subscriptions as calendars ?

[piggz]

well, i'd like to have read-only access to a subscription if possible. Still doesnt answer the different client problems though

[Pazu]

I just tested emClient 7, and that also does not get the subscribed calendar. Thus far, then, only CalDAV-Sync does this somehow.

[tcitworld]

This is an issue that you need to bring on the clients that you use.

[menerond]

I just found this https://github.com/nextcloud/calendar/issues/63 and I am assuming that owncloud and nextcloud are still not that far apart regarding the actual code:

1. Clients that are sticking to the caldav standard don't see the subscribed calenders, as stated in the thread linked above, it is an extension to the caldav standard by apple
2. It would need major changes to the owncloud code to sync via owncloud subscribed calendars to mobile devices via davdroid

So the solution for me right now is to manually sync the subscription with all the devices.
Feel free to correct me if I am wrong!

[brianjmurrell]

I have CalDAV Sync Adapter 1.8.1 on Android and it is not seeing subscribed calendars.

Neither is Evolution.