Support versioning in NextCloud & ownCloud

[cyberduck]

@dkocher created the issue

https://docs.nextcloud.com/server/14/developer_manual/client_apis/WebDAV/versions.html

[cyberduck]

@dkocher commented

Nextcloud makes the versions of files available via the webdav endpoint.

Listing the versions of a file
To obtain all the version of a file a normal PROPFIND has to be send to https://cloud.example.com/remote.php/dav/versions/USER/versions/FILEID. This will list the versions for this file.

The name is the timestamp of the version.

Restoring a version
To restore a version all that needs to be done is to move a version the special restore folder at https://cloud.example.com/remote.php/dav/versions/USER/restore

[cyberduck]

@dkocher commented

Corresponding ownCloud documentation.

[dkocher]

As for other protocols in #13342.

[dkocher]

Documentation for ownCloud

• File Versions