/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.shiro.authz.aop;
import java.lang.annotation.Annotation;
import org.apache.shiro.authz.UnauthenticatedException;
import org.apache.shiro.authz.annotation.RequiresAuthentication;
/**
* Handles {@link RequiresAuthentication RequiresAuthentication} annotations and ensures the calling subject is
* authenticated before allowing access.
*
* @author Les Hazlewood
* @since 0.9.0
*/
public class AuthenticatedAnnotationHandler extends AuthorizingAnnotationHandler {
/**
* Default no-argument constructor that ensures this handler to process
* {@link org.apache.shiro.authz.annotation.RequiresAuthentication RequiresAuthentication} annotations.
*/
public AuthenticatedAnnotationHandler() {
super(RequiresAuthentication.class);
}
/**
* Ensures that the calling <code>Subject</code> is authenticated, and if not, throws an
* {@link org.apache.shiro.authz.UnauthenticatedException UnauthenticatedException} indicating the method is not allowed to be executed.
*
* @param a the annotation to inspect
* @throws org.apache.shiro.authz.UnauthenticatedException if the calling <code>Subject</code> has not yet
* authenticated.
*/
public void assertAuthorized(Annotation a) throws UnauthenticatedException {
if (a instanceof RequiresAuthentication && !getSubject().isAuthenticated() ) {
throw new UnauthenticatedException( "The current Subject is not authenticated. Access denied." );
}
}
}