/*
* 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.ldap.handlers.bind.digestMD5;
import java.util.HashSet;
import java.util.Set;
import javax.naming.Context;
import javax.security.sasl.AuthorizeCallback;
import org.apache.directory.server.core.CoreSession;
import org.apache.directory.server.core.LdapPrincipal;
import org.apache.directory.server.core.entry.ClonedServerEntry;
import org.apache.directory.server.core.filtering.EntryFilteringCursor;
import org.apache.directory.server.ldap.LdapSession;
import org.apache.directory.server.ldap.handlers.bind.AbstractSaslCallbackHandler;
import org.apache.directory.server.ldap.handlers.bind.SaslConstants;
import org.apache.directory.shared.ldap.constants.AuthenticationLevel;
import org.apache.directory.shared.ldap.constants.SchemaConstants;
import org.apache.directory.shared.ldap.entry.EntryAttribute;
import org.apache.directory.shared.ldap.filter.ExprNode;
import org.apache.directory.shared.ldap.filter.FilterParser;
import org.apache.directory.shared.ldap.filter.SearchScope;
import org.apache.directory.shared.ldap.message.AliasDerefMode;
import org.apache.directory.shared.ldap.message.internal.InternalBindRequest;
import org.apache.directory.shared.ldap.name.DN;
import org.apache.directory.shared.ldap.schema.AttributeType;
import org.apache.directory.shared.ldap.schema.AttributeTypeOptions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev$, $Date$
*/
public class DigestMd5CallbackHandler extends AbstractSaslCallbackHandler
{
private static final Logger LOG = LoggerFactory.getLogger( DigestMd5CallbackHandler.class );
private String bindDn;
private String userPassword;
/**
* Creates a new instance of DigestMd5CallbackHandler.
*
* @param session the mina IoSession
* @param bindRequest the bind message
* @param directoryService the directory service core
*/
public DigestMd5CallbackHandler( LdapSession ldapSession, CoreSession adminSession, InternalBindRequest bindRequest )
{
super( adminSession.getDirectoryService(), bindRequest );
this.ldapSession = ldapSession;
this.adminSession = adminSession;
}
// TODO - should return not be a byte[]
protected EntryAttribute lookupPassword( String username, String realm )
{
try
{
ExprNode filter = FilterParser.parse( "(uid=" + username + ")" );
Set<AttributeTypeOptions> returningAttributes = new HashSet<AttributeTypeOptions>();
AttributeType passwordAT = adminSession.getDirectoryService().getSchemaManager().lookupAttributeTypeRegistry( SchemaConstants.USER_PASSWORD_AT );
returningAttributes.add( new AttributeTypeOptions( passwordAT) );
bindDn = (String)ldapSession.getSaslProperty( SaslConstants.SASL_USER_BASE_DN );
DN baseDn = new DN( bindDn );
EntryFilteringCursor cursor = adminSession.search(
baseDn,
SearchScope.SUBTREE,
filter,
AliasDerefMode.DEREF_ALWAYS,
returningAttributes );
cursor.beforeFirst();
ClonedServerEntry entry = null;
while ( cursor.next() )
{
entry = cursor.get();
LdapPrincipal ldapPrincipal = new LdapPrincipal(
entry.getDn(),
AuthenticationLevel.STRONG,
entry.get( SchemaConstants.USER_PASSWORD_AT ).getBytes() );
ldapSession.putSaslProperty( SaslConstants.SASL_AUTHENT_USER, ldapPrincipal );
}
return entry.get( passwordAT );
}
catch ( Exception e )
{
return null;
}
}
protected void authorize( AuthorizeCallback authorizeCB )
{
if ( LOG.isDebugEnabled() )
{
LOG.debug( "Converted username " + getUsername() + " to DN " + bindDn + " with password " + userPassword + "." );
}
ldapSession.putSaslProperty( Context.SECURITY_PRINCIPAL, bindDn );
authorizeCB.setAuthorizedID( bindDn );
authorizeCB.setAuthorized( true );
}
}