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package com.sun.xml.ws.security.opt.crypto.dsig;
import com.sun.xml.ws.api.message.Attachment;
import com.sun.xml.ws.security.opt.impl.crypto.AttachmentData;
import com.sun.xml.wss.impl.c14n.Canonicalizer;
import com.sun.xml.wss.impl.c14n.CanonicalizerFactory;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.security.InvalidAlgorithmParameterException;
import java.security.spec.AlgorithmParameterSpec;
import javax.xml.crypto.Data;
import javax.xml.crypto.MarshalException;
import javax.xml.crypto.OctetStreamData;
import javax.xml.crypto.XMLCryptoContext;
import javax.xml.crypto.XMLStructure;
import javax.xml.crypto.dsig.TransformException;
import javax.xml.crypto.dsig.TransformService;
import javax.xml.crypto.dsig.spec.TransformParameterSpec;
/**
*
* @author ashutosh.shahi@sun.com
*/
public class ACOTransform extends TransformService {
/** Creates a new instance of ACOTransform */
public ACOTransform() {
}
@Override
public void init(TransformParameterSpec params) throws InvalidAlgorithmParameterException {
}
@Override
public void marshalParams(XMLStructure parent, XMLCryptoContext context) throws MarshalException {
}
@Override
public void init(XMLStructure parent, XMLCryptoContext context) throws InvalidAlgorithmParameterException {
}
public AlgorithmParameterSpec getParameterSpec() {
return null;
}
public Data transform(Data data, XMLCryptoContext context) throws TransformException {
if (data instanceof AttachmentData) {
ByteArrayOutputStream os = null;
return canonicalize((AttachmentData) data, os);
}
return null;
}
public Data transform(Data data, XMLCryptoContext context, OutputStream os) throws TransformException {
if (data instanceof AttachmentData) {
return canonicalize((AttachmentData) data, os);
}
return null;
}
public boolean isFeatureSupported(String feature) {
return false;
}
private Data canonicalize(AttachmentData attachmentData, OutputStream os) throws TransformException {
try{
Attachment attachment = attachmentData.getAttachment();
InputStream is = attachment.asInputStream();
OutputStream byteStream = null;
if (os == null) {
byteStream = new ByteArrayOutputStream();
} else {
byteStream = os;
}
Canonicalizer canonicalizer = CanonicalizerFactory.getCanonicalizer(attachment.getContentType());
InputStream resultIs = canonicalizer.canonicalize(is,byteStream);
if(resultIs!= null) return new OctetStreamData(resultIs);
return null;
}catch(Exception ex){
throw new TransformException(ex.getMessage());
}
}
}