| /* |
| * 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 org.apache.shiro.authz.AuthorizationException; |
| import org.apache.shiro.authz.annotation.Logical; |
| import org.apache.shiro.authz.annotation.RequiresRoles; |
| |
| import javax.annotation.security.RolesAllowed; |
| import java.lang.annotation.Annotation; |
| import java.util.Arrays; |
| |
| /** |
| * Checks to see if a @{@link RolesAllowed}, annotation is declared, and if so, performs |
| * a role check to see if the calling <code>Subject</code> is allowed to proceed. |
| * |
| * @since 1.4.0 |
| */ |
| public class JavaxSecurityRolesAnnotationHandler extends AuthorizingAnnotationHandler { |
| |
| /** |
| * Default no-argument constructor that ensures this handler looks for |
| * {@link RequiresRoles RequiresRoles} annotations. |
| */ |
| public JavaxSecurityRolesAnnotationHandler() { |
| super(RolesAllowed.class); |
| } |
| |
| /** |
| * Ensures that the calling <code>Subject</code> has the Annotation's specified roles, and if not, throws an |
| * <code>AuthorizingException</code> indicating that access is denied. |
| * |
| * @param a the RolesAllowed annotation to use to check for one or more roles |
| * @throws AuthorizationException |
| * if the calling <code>Subject</code> does not have the role(s) necessary to |
| * proceed. |
| */ |
| public void assertAuthorized(Annotation a) throws AuthorizationException { |
| |
| if (!(a instanceof RolesAllowed)) { |
| return; |
| } |
| |
| RolesAllowed rannotation = (RolesAllowed) a; |
| String[] roles = rannotation.value(); |
| |
| if (roles.length == 1) { |
| getSubject().checkRole(roles[0]); |
| return; |
| } |
| |
| // Avoid processing exceptions unnecessarily - "delay" throwing the exception by calling hasRole first |
| boolean hasAtLeastOneRole = false; |
| |
| for (String role : roles) { |
| if (getSubject().hasRole(role)) { |
| hasAtLeastOneRole = true; |
| } |
| } |
| |
| // Cause the exception if none of the role match, note that the exception message will be a bit misleading |
| if (!hasAtLeastOneRole) |
| { |
| getSubject().checkRole(roles[0]); |
| } |
| } |
| |
| } |