NextCloud/OwnCloud Append Connection Path to Default Path

[AliveDevil]

When configuring a NextCloud/OwnCloud connection, users can easily get tripped by how the path is configured in these profiles.

With an empty path the Home feature is used, defaulting to remote.php/dav/files/username. When a path is set the Home feature isn't used, thus Cyberduck tries to mount /Path/To/Some/Folder, which should really be remote.php/dav/files/username/Path/To/some/Folder.

Proposal:
Unconditionally prepend "remote.php/dav/files/username" to all paths coming from a connection.
Additionally: Make prefix configurable - as in

<key>Properties</key>
<array>
    <string>connection.url.base=remote.php/dav/files/${username}</string>
</array>

Where Username-token is replaced in HostPreferences to host configured username.

[AliveDevil]

Häufig ist da noch ein reverse proxy vorne dran, so dass der default pfad nicht mehr stimmt.

Quote @dkocher

Often there is a reverse proxy in front, changing the default path.

[dkocher]

We could possibly improve this by reading the WebDAV root from the capabilities API as mentioned in #15860.

[dkocher]

Unfortunately the OCS capabilities seem to return an invalid value

…
 <capabilities>
   <core>
    <pollinterval>60</pollinterval>
    <webdav-root>remote.php/webdav</webdav-root>
…

advertising remote.php/webdav instead of remote.php/dav.

[ylangisc]

Unfortunately the OCS capabilities seem to return an invalid value

…
 <capabilities>
   <core>
    <pollinterval>60</pollinterval>
    <webdav-root>remote.php/webdav</webdav-root>
…

advertising remote.php/webdav instead of remote.php/dav.

Per the documentation the only non-legacy endpoint is dav/spaces/.

[dkocher]

Per the documentation the only non-legacy endpoint is dav/spaces/.

We will only change that as part of much larger effort switching to Libre Graph API with #14166.

[dkocher]

I want to revisit this to make sure we support more configurations in bookmarks and deployments

• Deployments with prefix to default Nextcloud URIs (example.net/nextcloud) or root (example.net/)
• Bookmarks configured with custom path using /remote.php/webdav/path
• Bookmarks configured with custom path using /remote.php/dav/username/path

[dkocher]

• Ensure no regression for Sharing files fails with Wrong path, file/folder doesn't exist #15855.