AuthorizationAttributeSourceAdvisor.java
/*
* 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.spring.security.interceptor;
import org.apache.shiro.authz.annotation.*;
import org.apache.shiro.mgt.SecurityManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.aop.support.StaticMethodMatcherPointcutAdvisor;
import org.springframework.core.annotation.AnnotationUtils;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
/**
* TODO - complete JavaDoc
*
* @since 0.1
*/
@SuppressWarnings({"unchecked"})
public class AuthorizationAttributeSourceAdvisor extends StaticMethodMatcherPointcutAdvisor {
private static final Logger log = LoggerFactory.getLogger(AuthorizationAttributeSourceAdvisor.class);
private static final Class<? extends Annotation>[] AUTHZ_ANNOTATION_CLASSES =
new Class[] {
RequiresPermissions.class, RequiresRoles.class,
RequiresUser.class, RequiresGuest.class, RequiresAuthentication.class
};
protected SecurityManager securityManager = null;
/**
* Create a new AuthorizationAttributeSourceAdvisor.
*/
public AuthorizationAttributeSourceAdvisor() {
setAdvice(new AopAllianceAnnotationsAuthorizingMethodInterceptor());
}
public SecurityManager getSecurityManager() {
return securityManager;
}
public void setSecurityManager(org.apache.shiro.mgt.SecurityManager securityManager) {
this.securityManager = securityManager;
}
/**
* Returns <tt>true</tt> if the method has any Shiro annotations, false otherwise.
* The annotations inspected are:
* <ul>
* <li>{@link org.apache.shiro.authz.annotation.RequiresAuthentication RequiresAuthentication}</li>
* <li>{@link org.apache.shiro.authz.annotation.RequiresUser RequiresUser}</li>
* <li>{@link org.apache.shiro.authz.annotation.RequiresGuest RequiresGuest}</li>
* <li>{@link org.apache.shiro.authz.annotation.RequiresRoles RequiresRoles}</li>
* <li>{@link org.apache.shiro.authz.annotation.RequiresPermissions RequiresPermissions}</li>
* </ul>
*
* @param method the method to check for a Shiro annotation
* @param targetClass the class potentially declaring Shiro annotations
* @return <tt>true</tt> if the method has a Shiro annotation, false otherwise.
* @see org.springframework.aop.MethodMatcher#matches(java.lang.reflect.Method, Class)
*/
public boolean matches(Method method, Class targetClass) {
Method m = method;
if ( isAuthzAnnotationPresent(m) ) {
return true;
}
//The 'method' parameter could be from an interface that doesn't have the annotation.
//Check to see if the implementation has it.
if ( targetClass != null) {
try {
m = targetClass.getMethod(m.getName(), m.getParameterTypes());
if ( isAuthzAnnotationPresent(m) ) {
return true;
}
} catch (NoSuchMethodException ignored) {
//default return value is false. If we can't find the method, then obviously
//there is no annotation, so just use the default return value.
}
}
return false;
}
private boolean isAuthzAnnotationPresent(Method method) {
for( Class<? extends Annotation> annClass : AUTHZ_ANNOTATION_CLASSES ) {
Annotation a = AnnotationUtils.findAnnotation(method, annClass);
if ( a != null ) {
return true;
}
}
return false;
}
}