| /* |
| * 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.sasl.ntlm; |
| |
| |
| import javax.naming.Context; |
| import javax.naming.InvalidNameException; |
| import javax.security.sasl.SaslException; |
| |
| import org.apache.directory.api.ldap.model.constants.AuthenticationLevel; |
| import org.apache.directory.api.ldap.model.constants.SupportedSaslMechanisms; |
| import org.apache.directory.api.ldap.model.message.BindRequest; |
| import org.apache.directory.api.ldap.model.name.Dn; |
| import org.apache.directory.api.util.Strings; |
| import org.apache.directory.server.core.api.CoreSession; |
| import org.apache.directory.server.core.api.LdapPrincipal; |
| import org.apache.directory.server.core.api.interceptor.context.BindOperationContext; |
| import org.apache.directory.server.i18n.I18n; |
| import org.apache.directory.server.ldap.LdapSession; |
| import org.apache.directory.server.ldap.handlers.sasl.AbstractSaslServer; |
| import org.apache.directory.server.ldap.handlers.sasl.SaslConstants; |
| |
| |
| /** |
| * A SaslServer implementation for NTLM based SASL mechanism. This is |
| * required unfortunately because the JDK's SASL provider does not support |
| * this mechanism. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class NtlmSaslServer extends AbstractSaslServer |
| { |
| /** The different states during a NTLM negotiation */ |
| enum NegotiationState |
| { |
| INITIALIZED, TYPE_1_RECEIVED, TYPE_2_SENT, TYPE_3_RECEIVED, COMPLETED |
| } |
| |
| /** The current state */ |
| private NegotiationState state = NegotiationState.INITIALIZED; |
| private final NtlmProvider provider; |
| |
| |
| public NtlmSaslServer( NtlmProvider provider, BindRequest bindRequest, LdapSession ldapSession, |
| CoreSession adminSession ) |
| { |
| super( ldapSession, adminSession, bindRequest ); |
| this.provider = provider; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public String getMechanismName() |
| { |
| return SupportedSaslMechanisms.NTLM; |
| } |
| |
| |
| protected void responseRecieved() |
| { |
| switch ( state ) |
| { |
| case INITIALIZED: |
| state = NegotiationState.TYPE_1_RECEIVED; |
| break; |
| |
| case TYPE_1_RECEIVED: |
| throw new IllegalStateException( I18n.err( I18n.ERR_660 ) ); |
| |
| case TYPE_2_SENT: |
| state = NegotiationState.TYPE_3_RECEIVED; |
| break; |
| |
| case TYPE_3_RECEIVED: |
| throw new IllegalStateException( I18n.err( I18n.ERR_661 ) ); |
| |
| case COMPLETED: |
| throw new IllegalStateException( I18n.err( I18n.ERR_662 ) ); |
| } |
| } |
| |
| |
| protected void responseSent() |
| { |
| switch ( state ) |
| { |
| case INITIALIZED: |
| throw new IllegalStateException( I18n.err( I18n.ERR_663 ) ); |
| |
| case TYPE_1_RECEIVED: |
| state = NegotiationState.TYPE_2_SENT; |
| break; |
| |
| case TYPE_2_SENT: |
| throw new IllegalStateException( I18n.err( I18n.ERR_664 ) ); |
| |
| case TYPE_3_RECEIVED: |
| state = NegotiationState.COMPLETED; |
| break; |
| |
| case COMPLETED: |
| throw new IllegalStateException( I18n.err( I18n.ERR_662 ) ); |
| } |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public byte[] evaluateResponse( byte[] response ) throws SaslException |
| { |
| if ( response == null ) |
| { |
| throw new IllegalArgumentException( I18n.err( I18n.ERR_666 ) ); |
| } |
| |
| if ( response.length == 0 ) |
| { |
| throw new IllegalArgumentException( I18n.err( I18n.ERR_667 ) ); |
| } |
| |
| responseRecieved(); |
| byte[] retval = null; |
| |
| switch ( state ) |
| { |
| case TYPE_1_RECEIVED: |
| try |
| { |
| retval = provider.generateChallenge( getLdapSession().getIoSession(), response ); |
| } |
| catch ( Exception e ) |
| { |
| throw new SaslException( I18n.err( I18n.ERR_668 ), e ); |
| } |
| |
| break; |
| |
| case TYPE_3_RECEIVED: |
| boolean result; |
| try |
| { |
| result = provider.authenticate( getLdapSession().getIoSession(), response ); |
| Dn dn = getBindRequest().getDn(); |
| dn.apply( getLdapSession().getLdapServer().getDirectoryService().getSchemaManager() ); |
| LdapPrincipal ldapPrincipal = new LdapPrincipal( getAdminSession().getDirectoryService() |
| .getSchemaManager(), |
| dn, AuthenticationLevel.STRONG ); |
| getLdapSession().putSaslProperty( SaslConstants.SASL_AUTHENT_USER, ldapPrincipal ); |
| getLdapSession() |
| .putSaslProperty( Context.SECURITY_PRINCIPAL, getBindRequest().getName().toString() ); |
| } |
| catch ( Exception e ) |
| { |
| throw new SaslException( I18n.err( I18n.ERR_669 ), e ); |
| } |
| |
| if ( !result ) |
| { |
| throw new SaslException( I18n.err( I18n.ERR_670 ) ); |
| } |
| |
| break; |
| } |
| |
| responseSent(); |
| return retval; |
| } |
| |
| |
| /** |
| * Try to authenticate the usr against the underlying LDAP server. |
| */ |
| private CoreSession authenticate( String user, String password ) throws InvalidNameException, Exception |
| { |
| BindOperationContext bindContext = new BindOperationContext( getLdapSession().getCoreSession() ); |
| bindContext.setDn( new Dn( user ) ); |
| bindContext.setCredentials( Strings.getBytesUtf8( password ) ); |
| |
| getAdminSession().getDirectoryService().getOperationManager().bind( bindContext ); |
| |
| return bindContext.getSession(); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean isComplete() |
| { |
| return state == NegotiationState.COMPLETED; |
| } |
| } |