Onlyoffice Document collaboration rights development, leveraging Casbin and Golang languages

Login user, for the document that has been set permission, will be based on the rights database, compared to the user name, when related to the user, the corresponding permissions are displayed, when it is not related to the logged-on user, the display of Access denied;

For users who are not logged in, the permission is already set for the document, which will show Access denied;

For logged-on and not logged-in users, documents that do not have permission settings are displayed with all allowed.

If it was uploaded by the user himself, all allowed.

The landing user and the non-logged on user arrow point to the reverse.