| /* |
| * 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.directory.server.core.authz.support; |
| |
| |
| import java.util.Collection; |
| import java.util.Iterator; |
| |
| import javax.naming.NamingException; |
| import javax.naming.directory.Attribute; |
| import javax.naming.directory.Attributes; |
| |
| import org.apache.directory.server.core.partition.PartitionNexusProxy; |
| import org.apache.directory.shared.ldap.aci.ACITuple; |
| import org.apache.directory.shared.ldap.aci.AuthenticationLevel; |
| import org.apache.directory.shared.ldap.aci.ProtectedItem; |
| import org.apache.directory.shared.ldap.aci.ProtectedItem.RestrictedByItem; |
| import org.apache.directory.shared.ldap.name.LdapDN; |
| |
| |
| /** |
| * An {@link ACITupleFilter} that discards all tuples that doesn't satisfy |
| * {@link ProtectedItem.RestrictedBy} constraint if available. (18.8.3.3, X.501) |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| * @version $Rev$, $Date$ |
| */ |
| public class RestrictedByFilter implements ACITupleFilter |
| { |
| public Collection filter( Collection tuples, OperationScope scope, PartitionNexusProxy proxy, |
| Collection userGroupNames, LdapDN userName, Attributes userEntry, AuthenticationLevel authenticationLevel, |
| LdapDN entryName, String attrId, Object attrValue, Attributes entry, Collection microOperations, Attributes entryView ) |
| throws NamingException |
| { |
| if ( scope != OperationScope.ATTRIBUTE_TYPE_AND_VALUE ) |
| { |
| return tuples; |
| } |
| |
| if ( tuples.size() == 0 ) |
| { |
| return tuples; |
| } |
| |
| for ( Iterator i = tuples.iterator(); i.hasNext(); ) |
| { |
| ACITuple tuple = ( ACITuple ) i.next(); |
| if ( !tuple.isGrant() ) |
| { |
| continue; |
| } |
| |
| if ( isRemovable( tuple, attrId, attrValue, entry ) ) |
| { |
| i.remove(); |
| } |
| } |
| |
| return tuples; |
| } |
| |
| |
| public boolean isRemovable( ACITuple tuple, String attrId, Object attrValue, Attributes entry ) |
| { |
| for ( Iterator i = tuple.getProtectedItems().iterator(); i.hasNext(); ) |
| { |
| ProtectedItem item = ( ProtectedItem ) i.next(); |
| if ( item instanceof ProtectedItem.RestrictedBy ) |
| { |
| ProtectedItem.RestrictedBy rb = ( ProtectedItem.RestrictedBy ) item; |
| for ( Iterator k = rb.iterator(); k.hasNext(); ) |
| { |
| RestrictedByItem rbItem = ( RestrictedByItem ) k.next(); |
| if ( attrId.equalsIgnoreCase( rbItem.getAttributeType() ) ) |
| { |
| Attribute attr = entry.get( rbItem.getValuesIn() ); |
| if ( attr == null || !attr.contains( attrValue ) ) |
| { |
| return true; |
| } |
| } |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| } |