/*
* Copyright 2001-2004 Fraunhofer Gesellschaft, Munich, Germany, for its
* Fraunhofer Institute Computer Architecture and Software Technology
* (FIRST), Berlin, Germany
*
* 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 gabriel.components.dynaop;
import dynaop.Interceptor;
import dynaop.Invocation;
import gabriel.Subject;
import gabriel.components.context.AccessContext;
import gabriel.components.context.ContextMethodAccessManager;
import gabriel.components.context.Ownable;
import gabriel.components.context.OwnerAccessContext;
import java.util.Set;
public class OwnableAccessInterceptor implements Interceptor {
private ContextMethodAccessManager manager;
public OwnableAccessInterceptor(ContextMethodAccessManager manager) {
super();
this.manager = manager;
}
public Object intercept(Invocation invocation) throws Throwable {
Object result;
Ownable ownable = (Ownable) invocation.getProxy();
AccessContext context = new OwnerAccessContext(ownable);
Set principals = Subject.get().getPrincipals();
String className = invocation.getMethod().getDeclaringClass().getName();
String methodName = invocation.getMethod().getName();
if (manager.checkPermission(principals, className + "." + methodName, context)) {
result = invocation.proceed();
} else {
throw new SecurityException("Access denied to " + invocation.getMethod().getName());
}
return result;
}
}