SecurityCheck => Add enonce published test

ExpressAPI/src/middlewares/SecurityMiddleware.ts

@@ -28,6 +28,9 @@ class SecurityMiddleware {
                             case SecurityCheckType.ENONCE_STAFF:
                                 isAllowed = isAllowed || await EnonceManager.isUserAllowedToAccessEnonce(req.boundParams.enonce, req.session.profile);
                                 break;
+                            case SecurityCheckType.ENONCE_IS_PUBLISHED:
+                                isAllowed = isAllowed || req.boundParams.enonce.published;
+                                break;
                             default:
                                 isAllowed = isAllowed || false;
                                 break;

ExpressAPI/src/types/SecurityCheckType.ts

 enum SecurityCheckType {
     TEACHING_STAFF      = 'teachingStaff',
-    ENONCE_STAFF   = 'enonceStaff'
+    ENONCE_STAFF        = 'enonceStaff',
+    ENONCE_IS_PUBLISHED = 'enonceIsPublished',
 }