It seems XML is a bit tricky in this Forum. I am on it to make it visible to you…

Hello Forum,

i did my first initial Setup of MM2 a few days before, and got it all running very fast.
Thanks a lot for the much work, MM2-Creators and Community. Youre top!

But with one synch i do have my complications, and i hope some of you have a idea how to deal with this.

I tried the original Calendar-Module and the MMM-Calendar-EXT2, but both of them do have his problems getting the NextCloud (=owncloud) caldav Calendar.
Two other calendars i have successfully bound to MM2 works fine, but my own “nextcloud”-Calendar not.

Lets describe what i had done:
The configuration looks like this:

{
    symbol: "calendar",
    url: "https://nc.[url].de/remote.php/dav/calendars/[user]/personal/",
    auth: {
        user: '[user]',
        pass: '[password]',
        method: 'basic'
    }
},

[2020-07-08 14:08:09.526] [LOG] Create new calendar fetcher for url: https://nc.[url].de/remote.php/dav/calendars/[user]/personal/ - Interval: 300000
[2020-07-08 14:13:08.958] [LOG] Use existing calendar fetcher for url: http://nc.[url].de/remote.php/dav/calendars/[user]/personal/
[2020-07-08 14:13:08.960] [INFO] Calendar-Fetcher: Broadcasting 0 events.

This is impossible, there are items in this Calendar. So i tried MMM-Calendar-Ext2

[2020-07-08 12:34:58.860] [LOG] Create new calendar fetcher for url: https://nc.[url].de/remote.php/dav/calendars/[user]/personal/ - Interval: 300000
[2020-07-08 12:34:59.192] [INFO] Checking git for module: MMM-CalendarExt2
[2020-07-08 12:34:59.250] [LOG] [CALEXT2] calendar:0 >> Scanning start with interval:1800000
[2020-07-08 12:35:00.182] [LOG] [CALEXT2] calendar:0 >> invalid line (no token “;” or “:”) “”
[2020-07-08 12:35:00.271] [INFO] Calendar-Fetcher: Broadcasting 0 events.

So I am going around checking the forum and playing a while with cURL to check what is going on. It seems the NextClound|OwnCloud do something else which is not just ical, it is caldav with every schedule in one separated ical-File. So the XML i got is a summarize of a “directory” showing the ical-“Files” for this calendar:

pi@magicmirror01:~# curl -i -X PROPFIND https://[user]:[password]@nc.[url].de/remote.php/dav/calendars/[user]/personal/ --upload-file - -H "Depth: 1" <<end
<?xml version="1.0"?>
<a:propfind xmlns:a="DAV:">
<a:prop><a:resourcetype/></a:prop>
</a:propfind>
end

HTTP/1.1 100 Continue

HTTP/1.1 207 Multi-Status
Date: Wed, 08 Jul 2020 10:23:53 GMT
[some standard http header]
DAV: 1, 3, extended-mkcol, access-control, calendarserver-principal-property-search, calendar-access, calendar-proxy, calendar-auto-schedule, calendar-availability, nc-calendar-webcal-cache, calendarserver-subscribed, oc-resource-sharing, oc-calendar-publishing, calendarserver-sharing, nc-calendar-search, nc-enable-birthday-calendar
Transfer-Encoding: chunked
Content-Type: application/xml; charset=utf-8

<?xml version="1.0"?>
<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns" xmlns:cal="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/" xmlns:oc="http://owncloud.org/ns" xmlns:nc="http://nextcloud.org/ns"><d:response><d:href>/remote.php/dav/calendars/[user]/personal/</d:href><d:propstat><d:prop><d:resourcetype><d:collection/><cal:calendar/></d:resourcetype></d:prop><d:status>HTTP/1.1 200 OK</d:status></d:propstat></d:response><d:response><d:href>/remote.php/dav/calendars/[user]/personal/031acb15-cd36-42a2-a7c2-63f8bf270594.ics</d:href><d:propstat><d:prop><d:resourcetype/></d:prop><d:status>HTTP/1.1 200 OK</d:status></d:propstat></d:response><d:response><d:href>/remote.php/dav/calendars/[user]/personal/049056e8-8c5f-425d-9c65-236a7069af49.ics ......

Dear Team, do you see any possibility to parse these XML, get the found ics files and publish this as calendar-Items to the MM2-Calendar-System?

Thanks a lot!
Stefan