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package com.sun.xml.wss.impl.transform;
import com.sun.xml.wss.WSITXMLFactory;
import com.sun.xml.wss.impl.MessageConstants;
import com.sun.xml.wss.logging.LogDomainConstants;
import com.sun.xml.wss.logging.impl.dsig.LogStringsMessages;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.crypto.Data;
import javax.xml.crypto.NodeSetData;
import javax.xml.crypto.OctetStreamData;
import javax.xml.crypto.XMLCryptoContext;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NamedNodeMap;
/*
* author K.Venugopal@sun.com
*/
public class STRTransformImpl {
private static Logger logger = Logger.getLogger(LogDomainConstants.IMPL_SIGNATURE_DOMAIN,
LogDomainConstants.IMPL_SIGNATURE_DOMAIN_BUNDLE);
protected static Data transform(Data data,XMLCryptoContext context,java.io.OutputStream outputStream)throws javax.xml.crypto.dsig.TransformException{
try{
Set nodeSet = getNodeSet(data);
if(outputStream == null){
ByteArrayOutputStream bs = new ByteArrayOutputStream();
new Canonicalizer20010315ExclOmitComments().engineCanonicalizeXPathNodeSet(nodeSet, "",bs,context);
OctetStreamData osd = new OctetStreamData(new ByteArrayInputStream(bs.toByteArray()));
bs.close();
return osd;
}else{
new Canonicalizer20010315ExclOmitComments().engineCanonicalizeXPathNodeSet(nodeSet, "",outputStream,context);
}
return null;
}catch(Exception ex){
logger.log(Level.SEVERE,LogStringsMessages.WSS_1322_STR_TRANSFORM(),ex);
}
return null;
}
@SuppressWarnings("unchecked")
private static Set getNodeSet(Data data)throws javax.xml.crypto.dsig.TransformException{
HashSet nodeSet = new HashSet();
if(data instanceof NodeSetData){
Iterator it = ((NodeSetData)data).iterator();
while(it.hasNext()){
Object node = it.next();
if(MessageConstants.debug){
logger.log(Level.FINEST,"Data is "+node);
}
nodeSet.add(node);
}
}else if(data instanceof OctetStreamData ){
try{
DocumentBuilderFactory factory = WSITXMLFactory.createDocumentBuilderFactory(WSITXMLFactory.DISABLE_SECURE_PROCESSING);
//new com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl();
factory.setNamespaceAware(true);
Document doc = factory.newDocumentBuilder().parse(((OctetStreamData)data).getOctetStream());
toNodeSet(doc,nodeSet);
}catch(Exception ex){
logger.log(Level.SEVERE,LogStringsMessages.WSS_1322_STR_TRANSFORM(),ex);
throw new javax.xml.crypto.dsig.TransformException(ex.getMessage());
}
}
return nodeSet;
}
@SuppressWarnings("unchecked")
static final void toNodeSet(final Node rootNode,final Set result){
//handle EKSHA1 under DKT
if (rootNode == null) return;
switch (rootNode.getNodeType()) {
case Node.ELEMENT_NODE:
result.add(rootNode);
Element el=(Element)rootNode;
if (el.hasAttributes()) {
NamedNodeMap nl = ((Element)rootNode).getAttributes();
for (int i=0;i<nl.getLength();i++) {
result.add(nl.item(i));
}
}
//no return keep working
case Node.DOCUMENT_NODE:
for (Node r=rootNode.getFirstChild();r!=null;r=r.getNextSibling()){
if (r.getNodeType()==Node.TEXT_NODE) {
result.add(r);
while ((r!=null) && (r.getNodeType()==Node.TEXT_NODE)) {
r=r.getNextSibling();
}
if (r==null)
return;
}
toNodeSet(r,result);
}
return;
case Node.COMMENT_NODE:
return;
case Node.DOCUMENT_TYPE_NODE:
return;
default:
result.add(rootNode);
}
return;
}
}