/*************************************************************************
* Copyright 2009-2013 Eucalyptus Systems, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3 of the License.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*
* Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
* CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
* additional information or have any questions.
*
* This file may incorporate work covered under the following copyright
* and permission notice:
*
* Software License Agreement (BSD License)
*
* Copyright (c) 2008, Regents of the University of California
* All rights reserved.
*
* Redistribution and use of this software in source and binary forms,
* with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* POSSIBILITY OF SUCH DAMAGE. USERS OF THIS SOFTWARE ACKNOWLEDGE
* THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE LICENSED MATERIAL,
* COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE,
* AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA,
* SANTA BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY,
* WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION,
* REPLACEMENT OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO
* IDENTIFIED, OR WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT
* NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS.
************************************************************************/
package com.eucalyptus.ws.handlers;
import java.util.Collection;
import java.util.List;
import javax.xml.crypto.dsig.Reference;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMException;
import org.apache.axiom.om.impl.builder.StAXOMBuilder;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axiom.soap.impl.builder.StAXSOAPModelBuilder;
import org.apache.log4j.Logger;
import org.apache.ws.security.WSConstants;
import org.apache.ws.security.WSEncryptionPart;
import org.apache.ws.security.WSSConfig;
import org.apache.ws.security.WSSecurityException;
import org.apache.ws.security.message.WSSecHeader;
import org.apache.ws.security.message.WSSecSignature;
import org.apache.ws.security.message.WSSecTimestamp;
import org.jboss.netty.channel.ChannelHandler;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.channel.MessageEvent;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import com.eucalyptus.binding.HoldMe;
import com.eucalyptus.crypto.util.WSSecurity;
import com.eucalyptus.http.MappingHttpMessage;
import com.eucalyptus.ws.util.CredentialProxy;
import com.google.common.collect.Lists;
@ChannelHandler.Sharable
public abstract class WsSecHandler extends MessageStackHandler {
private static Logger LOG = Logger.getLogger( WsSecHandler.class );
private final CredentialProxy credentials;
static {
WSSecurity.init();
}
public WsSecHandler( final CredentialProxy credentials ) {
this.credentials = credentials;
}
@Override
public void outgoingMessage( final ChannelHandlerContext ctx, final MessageEvent event ) {
final Object o = event.getMessage( );
if ( o instanceof MappingHttpMessage ) {
try {
final MappingHttpMessage httpRequest = ( MappingHttpMessage ) o;
OMElement elem = null;
Document doc = null;
SOAPEnvelope env = httpRequest.getSoapEnvelope( );
HoldMe.canHas.lock( );
try {
final StAXOMBuilder doomBuilder = HoldMe.getStAXOMBuilder( HoldMe.getDOOMFactory( ), env.getXMLStreamReader( ) );
elem = doomBuilder.getDocumentElement( );
elem.build( );
doc = ( ( Element ) elem ).getOwnerDocument( );
} finally {
HoldMe.canHas.unlock( );
}
final List<WSEncryptionPart> partsToSign = Lists.newArrayList();
final WSSecHeader wsheader = new WSSecHeader( "", false );
try {
wsheader.insertSecurityHeader( doc );
} catch ( WSSecurityException e ) {
LOG.error( e, e );
Channels.fireExceptionCaught( ctx, e );
}
final WSSecSignature signer = new WSSecSignature( );
final WSSConfig config = WSSConfig.getNewInstance( );
config.setWsiBSPCompliant( false );
signer.setWsConfig( config );
signer.setKeyIdentifierType( WSConstants.BST_DIRECT_REFERENCE );
signer.setSigCanonicalization( WSConstants.C14N_EXCL_OMIT_COMMENTS );
try {
signer.prepare( doc, this.credentials, wsheader );
} catch ( WSSecurityException e ) {
LOG.error( doc );
LOG.error( e, e );
Channels.fireExceptionCaught( ctx, e );
}
if ( this.shouldTimeStamp( ) ) {
final WSSecTimestamp ts = new WSSecTimestamp( );
ts.setTimeToLive( 300 );
ts.prepare( doc );
ts.prependToHeader( wsheader );
}
partsToSign.addAll( this.getSignatureParts() );
signer.appendBSTElementToHeader( wsheader );
List<Reference> references = null;
try {
references = signer.addReferencesToSign( partsToSign, wsheader );
} catch ( WSSecurityException e ) {
LOG.error( doc );
LOG.error( e, e );
Channels.fireExceptionCaught( ctx, e );
}
try {
signer.computeSignature( references, false, null );
} catch ( WSSecurityException e ) {
LOG.error( doc );
LOG.error( e, e );
Channels.fireExceptionCaught( ctx, e );
}
SOAPEnvelope envelope = null;
HoldMe.canHas.lock( );
try {
final StAXSOAPModelBuilder stAXSOAPModelBuilder = new StAXSOAPModelBuilder( elem.getXMLStreamReader( ), HoldMe.getOMSOAP11Factory( ), null );
envelope = stAXSOAPModelBuilder.getSOAPEnvelope( );
if(envelope != null)
envelope.build( );
} finally {
HoldMe.canHas.unlock( );
}
httpRequest.setSoapEnvelope( envelope );
} catch ( OMException e ) {
LOG.error( e, e );
Channels.fireExceptionCaught( ctx, e );
}
}
}
public abstract Collection<WSEncryptionPart> getSignatureParts( );
public abstract boolean shouldTimeStamp( );
}