/**
* Copyright (C) 2011 JTalks.org Team
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.jtalks.jcommune.service.security.acl;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.acls.domain.AclAuthorizationStrategy;
import org.springframework.security.acls.model.Acl;
import org.springframework.security.core.context.SecurityContextHolder;
/**
* JCommune implementation of {@link AclAuthorizationStrategy}.
* <p/>
* Permission will be granted to any principal if it is authenticated.
*
* @author Elena Lepaeva
*/
public class AclAuthorizationStrategyImpl implements AclAuthorizationStrategy {
/**
* Method checks that SecurityContextHolder contains authenticated principal.
*
* @param acl access control list (is not used, may be null).
* @param changeType AclAuthorizationStrategy change type constant (is not used, may be null).
*/
@Override
public void securityCheck(Acl acl, int changeType) {
if ((SecurityContextHolder.getContext() == null)
|| (SecurityContextHolder.getContext().getAuthentication() == null)
|| !SecurityContextHolder.getContext().getAuthentication().isAuthenticated()) {
throw new AccessDeniedException("Authenticated principal required to operate with ACLs");
}
}
}