Add ability for auth plugins to hook tokens validity

shared/models/plugins/register-server-auth.model.ts

@@ -1,4 +1,5 @@
 import { UserRole } from '@shared/models'
+import { MOAuthToken } from '@server/typings/models'
 
 export type RegisterServerAuthOptions = RegisterServerAuthPassOptions | RegisterServerAuthExternalOptions
 
@@ -6,11 +7,16 @@ export interface RegisterServerAuthPassOptions {
   // Authentication name (a plugin can register multiple auth strategies)
   authName: string
 
-  onLogout?: Function
+  // Called by PeerTube when a user from your plugin logged out
+  onLogout?(): void
 
   // Weight of this authentication so PeerTube tries the auth methods in DESC weight order
   getWeight(): number
 
+  // Your plugin can hook PeerTube access/refresh token validity
+  // So you can control for your plugin the user session lifetime
+  hookTokenValidity?(options: { token: MOAuthToken, type: 'access' | 'refresh' }): Promise<{ valid: boolean }>
+
   // Used by PeerTube to login a user
   // Returns null if the login failed, or { username, email } on success
   login(body: {