Initial commit

src/main/java/com/mzh/library/service/AuthService.java

@@ -0,0 +1,10 @@
+package com.mzh.library.service;
+
+import com.mzh.library.entity.AuthenticatedUser;
+import com.mzh.library.entity.Permission;
+
+public interface AuthService {
+    AuthenticationResult authenticate(String username, String password);
+
+    boolean hasPermission(AuthenticatedUser user, Permission permission);
+}