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/*
* Transform.java
*
* Created on January 24, 2006, 3:42 PM
*/
package com.sun.xml.ws.security.opt.crypto.dsig;
import com.sun.xml.security.core.dsig.InclusiveNamespacesType;
import com.sun.xml.ws.security.opt.impl.dsig.ExcC14NParameterSpec;
import com.sun.xml.ws.security.opt.impl.dsig.StAXEnvelopedTransformWriter;
import com.sun.xml.ws.security.opt.impl.dsig.StAXSTRTransformWriter;
import com.sun.xml.ws.security.secext10.TransformationParametersType;
import com.sun.xml.wss.impl.MessageConstants;
import com.sun.xml.wss.impl.c14n.StAXEXC14nCanonicalizerImpl;
import com.sun.xml.wss.logging.LogDomainConstants;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.security.InvalidAlgorithmParameterException;
import java.security.spec.AlgorithmParameterSpec;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;
import javax.xml.crypto.Data;
import javax.xml.crypto.XMLCryptoContext;
import javax.xml.crypto.dsig.TransformException;
import javax.xml.stream.XMLStreamException;
import com.sun.xml.wss.logging.impl.opt.signature.LogStringsMessages;
import java.util.ArrayList;
/**
*
* @author Abhijit Das
* @author K.Venugopal@sun.com
*/
@XmlRootElement(name="Transform",namespace = "http://www.w3.org/2000/09/xmldsig#")
public class Transform extends com.sun.xml.security.core.dsig.TransformType implements javax.xml.crypto.dsig.Transform {
@XmlTransient private static final Logger logger = Logger.getLogger(LogDomainConstants.IMPL_OPT_SIGNATURE_DOMAIN,
LogDomainConstants.IMPL_OPT_SIGNATURE_DOMAIN_BUNDLE);
@XmlTransient private AlgorithmParameterSpec algSpec = null;
@XmlTransient private Exc14nCanonicalizer _exc14nTransform;
@XmlTransient private String refId = "";
/** Creates a new instance of Transform */
public Transform() {
}
public AlgorithmParameterSpec getParameterSpec() {
return algSpec;
}
public void setParameterSpec(AlgorithmParameterSpec algSpec) {
this.algSpec = algSpec;
}
@SuppressWarnings("unchecked")
public void setContent(List content) {
this.content = content;
}
public Data transform(Data data, XMLCryptoContext xMLCryptoContext) throws TransformException {
if(javax.xml.crypto.dsig.CanonicalizationMethod.EXCLUSIVE.equals(getAlgorithm())){
if(_exc14nTransform == null){
_exc14nTransform = new Exc14nCanonicalizer();
}
return _exc14nTransform.transform(data,xMLCryptoContext);
}else if(getAlgorithm().equals(Transform.ENVELOPED)){
return new StAXEnvelopedTransformWriter(data);
}else if(getAlgorithm().equals(MessageConstants.STR_TRANSFORM_URI)){
return new StAXSTRTransformWriter(data,xMLCryptoContext,refId);
}
throw new UnsupportedOperationException("Algorithm Transform "+ getAlgorithm() +" not supported yet");
}
public Data transform(Data data, XMLCryptoContext xMLCryptoContext, OutputStream outputStream) throws TransformException {
if(getAlgorithm().equals(MessageConstants.STR_TRANSFORM_URI)){
ByteArrayOutputStream bos = new ByteArrayOutputStream();
OutputStream fis = outputStream;
if(logger.isLoggable(Level.FINEST)){
fis = bos;
}
StAXEXC14nCanonicalizerImpl _canonicalizer = null;
if(algSpec != null || content.size() >0){
Object ob = content.get(0);
if(ob instanceof JAXBElement){
JAXBElement el = (JAXBElement)ob;
TransformationParametersType tp = (TransformationParametersType) el.getValue();
CanonicalizationMethod cm = (CanonicalizationMethod) tp.getAny().get(0);
String algo = cm.getAlgorithm();
if(javax.xml.crypto.dsig.CanonicalizationMethod.EXCLUSIVE.equals(algo)){
_canonicalizer = new StAXEXC14nCanonicalizerImpl();
if (!logger.isLoggable(Level.FINEST)){
_canonicalizer.setStream(outputStream);
}else{
_canonicalizer.setStream(fis);
}
}
}
}
StAXSTRTransformWriter strWriter = new StAXSTRTransformWriter(data,xMLCryptoContext,refId);
try{
strWriter.write(_canonicalizer);
}catch(XMLStreamException ex){
throw new TransformException(ex);
}
if (logger.isLoggable(Level.FINEST)){
logger.log(Level.FINEST, LogStringsMessages.WSS_1757_CANONICALIZED_TARGET_VALUE(bos.toString()));
try {
outputStream.write(bos.toByteArray());
return null;
} catch (IOException ex) {
throw new TransformException(ex);
}
}
return null;
}
ByteArrayOutputStream bos = new ByteArrayOutputStream();
OutputStream fis = outputStream;
if(logger.isLoggable(Level.FINEST)){
fis = bos;
}
if(getAlgorithm().intern() == javax.xml.crypto.dsig.CanonicalizationMethod.EXCLUSIVE.intern()){
if(_exc14nTransform == null){
_exc14nTransform = new Exc14nCanonicalizer();
try{
_exc14nTransform.init((javax.xml.crypto.dsig.spec.TransformParameterSpec)algSpec);
} catch(InvalidAlgorithmParameterException e){
throw new TransformException(e);
}
}
if(!logger.isLoggable(Level.FINEST)){
//return _exc14nTransform.transform(data,xMLCryptoContext,fis);
Data canData = _exc14nTransform.transform(data,xMLCryptoContext,fis);
setContentList();
return canData;
}else{
_exc14nTransform.transform(data,xMLCryptoContext,fis);
setContentList();
logger.log(Level.FINEST, LogStringsMessages.WSS_1757_CANONICALIZED_TARGET_VALUE(bos.toString()));
try {
outputStream.write(bos.toByteArray());
return null;
} catch (IOException ex) {
throw new TransformException(ex);
}
}
} else if(getAlgorithm().intern() == MessageConstants.SWA11_ATTACHMENT_CONTENT_SIGNATURE_TRANSFORM){
ACOTransform acoTransform = new ACOTransform();
return acoTransform.transform(data, xMLCryptoContext, fis);
} else if(getAlgorithm().intern() == MessageConstants.SWA11_ATTACHMENT_COMPLETE_SIGNATURE_TRANSFORM){
// TODO:
}else if(getAlgorithm().intern() == MessageConstants.SWA11_ATTACHMENT_CIPHERTEXT_TRANSFORM){
//ACOTransform acoTransform = new ACOTransform();
//return acoTransform.transform(data, xMLCryptoContext, fis);
}
throw new UnsupportedOperationException("Algorithm Transform "+ getAlgorithm() +" not supported yet");
}
public boolean isFeatureSupported(String string) {
return false;
}
public void setReferenceId(String id){
this.refId = id;
}
@SuppressWarnings("unchecked")
private void setContentList(){
if(algSpec != null){
content = setInclusiveNamespaces((ExcC14NParameterSpec)algSpec);
}
}
@SuppressWarnings("unchecked")
private List setInclusiveNamespaces(ExcC14NParameterSpec spec){
com.sun.xml.security.core.dsig.ObjectFactory objFac = new com.sun.xml.security.core.dsig.ObjectFactory();
InclusiveNamespacesType incList = objFac.createInclusiveNamespaces();
List prefixList = spec.getPrefixList();
for(int j = 0; j < prefixList.size(); j++){
String prefix = (String)prefixList.get(j);
incList.addToPrefixList(prefix);
}
JAXBElement<InclusiveNamespacesType> je = objFac.createInclusiveNamespaces(incList);
List contentList = new ArrayList();
contentList.add(je);
return contentList;
}
}