initial permissions endpoint implementation

models/safe.go

@@ -111,7 +111,9 @@ func (s *Safe) SafeAdd() (*Safe, error) {
 			log.Printf("safe: %v\n", s)
 		}
 	} else {
-		log.Printf("SafeAdd safe name already exists : '%v'\n", err)
+		errString := "safe with name already exists"
+		log.Printf("SafeAdd %s\n", errString)
+		return &Safe{}, errors.New(errString)
 	}
 
 	return s, nil