如果主体没有规则，则 CASL 行为

Question

When not providing any rule for a given subject in CASL checking an ability for this subject always returns false.

Eg

 import { Ability } from '@casl/ability'; const ability = new Ability({ action: "read", subject: "FirstSubject", // no rule for SecondSubject }); ability.can("read", "FirstSubject"); // true ability.can("write", "FirstSubject"); // false ability.can("read", "SecondSubject"); // false <-- These two lines should ability.can("write", "SecondSubject"); // false <-- return `true`

Is it possible to change this behavior in a way that the ability returns true for subjects that do not have any rules?

In my use case I have a very large amount of subjects and new ones can be added dynamically. It would be difficult to always having to add { action: "manage", subject: "NewSubject"} whenever a new subject is added. I would rather like to only add rules for subjects where something is actually restricted.

Answer 1

根据与 CASL 作者的聊天，这是不可能实现的。