How to provide Read-only access via WebDAV with differentiation of access rights to directories?

Question

linux

Good afternoon.
Please help with advice on choosing a tool, as lightweight as possible, to implement a replacement for an FTP server. It would be desirable to get access on HTTPS/WebDAV.
Read-only access is needed, a number of users who will have different levels of access to different levels of the directory tree. For one user (or group of users) access should be only to one branch of the tree, for another it can be to several.
All users receive login and passwords strictly from the administrator and should not be able to set their own.
What tool can meet such needs?
At the moment I tried nginx, but I didn’t figure out how, based on what criteria, a group of users should change root or give several groups (realms) access to one directory.
Owncloud seems to get around these difficulties, but does not provide for the creation of users with read-only rights and no rights to change their own password.

Answer 1

You can deprive the rights to change the password in OC using alternative backends, such as LDAP.
It is also possible to implement Read-only - with a quota of 0 bytes and sharing the necessary folders with a link with a prohibition of editing.