swaf/src/auth/AuthProof.ts

40 lines
1.5 KiB
TypeScript

/**
* This class is most commonly used for authentication. It can be more generically used to represent a verification
* state of whether a given resource is owned by a session.
*
* Any auth system should consider this auth proof valid if and only if both {@code isValid()} and {@code isAuthorized()}
* both return {@code true}.
*
* @type <R> The resource type this AuthProof authorizes.
*/
export default interface AuthProof<R> {
/**
* Is this auth proof valid in time (and context)?
*
* For example, it can return true for an initial short validity time period then false, and increase that time
* period if {@code isAuthorized()} returns true.
*/
isValid(): Promise<boolean>;
/**
* Was this proof authorized?
*
* Return true once the session is proven to own the associated resource.
*/
isAuthorized(): Promise<boolean>;
/**
* Retrieve the resource this auth proof is supposed to authorize.
* If this resource doesn't exist yet, return {@code null}.
*/
getResource(): Promise<R | null>;
/**
* Manually revokes this authentication proof. Once this method is called, all of the following must be true:
* - {@code isAuthorized} returns {@code false}
* - There is no way to re-authorize this proof (i.e. {@code isAuthorized} can never return {@code true} again)
*
* Additionally, this method should delete any stored data that could lead to restoration of this AuthProof instance.
*/
revoke(): Promise<void>;
}