This property can be queries by the clients so they know the max
permissions they can use to share a file with. This will improve the UX.
The oc:permissions proptery is not enough since mountpoints have
different permissions (delete + move by default).
By making it a new property the clients can just request it. On older
servers it will just return a 404 for that property (and thus they know
they have to fall back to their hacky work arounds). But if the property
is returned the client can show proper info.
* unit tests
* intergration test
Intergration tests to ensure the share-types property is set correctly.
* Unshared item
* Shared with user
* Shared with group
* Shared by link
* Shared with user & group & link
Recent refactorings have resulted in the header being added twice, this makes browsers ignore the header which removes any security gains.
This changeset adds the header only once and adds integration tests ensuring the correct header in future.
https://github.com/owncloud/core/issues/22577