/*
* Copyright 2011 <a href="mailto:lincolnbaxter@gmail.com">Lincoln Baxter, III</a>
*
* Licensed 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.ocpsoft.rewrite.security.shiro;
import java.util.Arrays;
import java.util.Collection;
import org.apache.shiro.SecurityUtils;
import org.ocpsoft.rewrite.annotation.api.ClassContext;
import org.ocpsoft.rewrite.annotation.api.HandlerChain;
import org.ocpsoft.rewrite.annotation.handler.HandlerWeights;
import org.ocpsoft.rewrite.annotation.spi.AnnotationHandler;
import org.ocpsoft.rewrite.config.Condition;
import org.ocpsoft.rewrite.context.EvaluationContext;
import org.ocpsoft.rewrite.event.Rewrite;
/**
* @author <a href
* @author <a href="mailto:lincolnbaxter@gmail.com">Lincoln Baxter, III</a>
*
*/
public class ShiroRoleRequiredHandler implements AnnotationHandler<ShiroRoleRequired>
{
@Override
public Class<ShiroRoleRequired> handles()
{
return ShiroRoleRequired.class;
}
@Override
public int priority()
{
return HandlerWeights.WEIGHT_TYPE_ENRICHING;
}
@Override
public void process(ClassContext context, ShiroRoleRequired annotation, HandlerChain chain)
{
Condition roleCondition = new ShiroRoleCondition(annotation.value());
Condition conjunction = context.getRuleBuilder().getConditionBuilder().and(roleCondition);
context.getRuleBuilder().when(conjunction);
chain.proceed();
}
/**
* Implementation of {@link Condition} that checks the subject's roles
*
* @author Christian Kaltepoth
*/
private static class ShiroRoleCondition implements Condition
{
private final Collection<String> roles;
public ShiroRoleCondition(String[] roles)
{
this.roles = Arrays.asList(roles);
}
@Override
public boolean evaluate(Rewrite event, EvaluationContext context)
{
return SecurityUtils.getSubject().hasAllRoles(roles);
}
}
}