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/*
* EncryptionProcessor.java
*
* Created on August 1, 2006, 3:30 PM
*/
package com.sun.xml.ws.security.opt.impl.enc;
import com.sun.xml.security.core.xenc.EncryptedKeyType;
import com.sun.xml.security.core.xenc.ReferenceList;
import com.sun.xml.security.core.xenc.ReferenceType;
import com.sun.xml.ws.security.opt.api.EncryptedKey;
import com.sun.xml.ws.security.opt.api.SecurityElement;
import com.sun.xml.ws.security.opt.api.keyinfo.BuilderResult;
import com.sun.xml.ws.security.opt.impl.util.NamespaceContextEx;
import com.sun.xml.ws.security.opt.impl.util.WSSElementFactory;
import com.sun.xml.ws.security.opt.impl.message.ETHandler;
import com.sun.xml.wss.XWSSecurityException;
import com.sun.xml.ws.security.opt.crypto.dsig.keyinfo.KeyInfo;
import com.sun.xml.wss.impl.MessageConstants;
import com.sun.xml.wss.impl.PolicyTypeUtil;
import com.sun.xml.wss.impl.keyinfo.KeyInfoStrategy;
import com.sun.xml.wss.impl.policy.mls.AuthenticationTokenPolicy;
import com.sun.xml.wss.impl.policy.mls.DerivedTokenKeyBinding;
import com.sun.xml.wss.impl.policy.mls.EncryptionPolicy;
import com.sun.xml.wss.impl.policy.mls.EncryptionTarget;
import com.sun.xml.wss.impl.policy.mls.SymmetricKeyBinding;
import com.sun.xml.wss.impl.policy.mls.WSSPolicy;
import com.sun.xml.wss.logging.LogDomainConstants;
import com.sun.xml.ws.security.opt.impl.JAXBFilterProcessingContext;
import com.sun.xml.wss.impl.policy.mls.EncryptionPolicy.FeatureBinding;
import com.sun.xml.wss.logging.impl.opt.crypto.LogStringsMessages;
import java.security.Key;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.bind.JAXBElement;
/*
* @author K.Venugopal@sun.com
*/
public class EncryptionProcessor {
private static byte[] crlf = null;
private static final Logger logger = Logger.getLogger(LogDomainConstants.IMPL_OPT_CRYPTO_DOMAIN,
LogDomainConstants.IMPL_OPT_CRYPTO_DOMAIN_BUNDLE);
static{
try{
crlf = "\r\n".getBytes("US-ASCII");
}catch( java.io.UnsupportedEncodingException ue){
//log;
logger.log(Level.SEVERE,LogStringsMessages.WSS_1917_CRLF_INIT_FAILED(),ue);
}
}
/** Creates a new instance of EncryptionProcessor */
public EncryptionProcessor() {
}
/**
* performs encryption
* @param context JAXBFilterProcessingContext
* @throws XWSSecurityException
*/
public void process(JAXBFilterProcessingContext context) throws XWSSecurityException{
boolean ekRefList = false;
String referenceType = null;
String x509TokenId = null;
WSSElementFactory elementFactory = new WSSElementFactory(context.getSOAPVersion());
X509Certificate _x509Cert = null;
KeyInfoStrategy keyInfoStrategy = null;
String symmetricKeyName = null;
AuthenticationTokenPolicy.X509CertificateBinding certificateBinding = null;
((NamespaceContextEx)context.getNamespaceContext()).addEncryptionNS();
((NamespaceContextEx)context.getNamespaceContext()).addSignatureNS();
ReferenceList dataRefList = null;
EncryptedKeyType ekt = null;
WSSPolicy wssPolicy = (WSSPolicy)context.getSecurityPolicy();
EncryptionPolicy.FeatureBinding featureBinding =(EncryptionPolicy.FeatureBinding) wssPolicy.getFeatureBinding();
WSSPolicy keyBinding = (WSSPolicy)wssPolicy.getKeyBinding();
EncryptedKey ek = null;
KeyInfo edKeyInfo = null;
if(logger.isLoggable(Level.FINEST)){
logger.log(Level.FINEST, LogStringsMessages.WSS_1952_ENCRYPTION_KEYBINDING_VALUE(keyBinding));
}
if(PolicyTypeUtil.derivedTokenKeyBinding(keyBinding)){
DerivedTokenKeyBinding dtk = (DerivedTokenKeyBinding)keyBinding.clone();
WSSPolicy originalKeyBinding = dtk.getOriginalKeyBinding();
if (PolicyTypeUtil.x509CertificateBinding(originalKeyBinding)){
AuthenticationTokenPolicy.X509CertificateBinding ckBindingClone =
(AuthenticationTokenPolicy.X509CertificateBinding)originalKeyBinding.clone();
//create a symmetric key binding and set it as original key binding of dkt
SymmetricKeyBinding skb = new SymmetricKeyBinding();
skb.setKeyBinding(ckBindingClone);
// set the x509 binding as key binding of symmetric binding
dtk.setOriginalKeyBinding(skb);
//keyBinding = dtk;
EncryptionPolicy ep = (EncryptionPolicy)wssPolicy.clone();
ep.setKeyBinding(dtk);
context.setSecurityPolicy(ep);
wssPolicy = ep;
}
}
TokenProcessor tp = new TokenProcessor((EncryptionPolicy) wssPolicy, context);
BuilderResult tokenInfo = tp.process();
Key dataEncKey = null;
Key dkEncKey = null;
dataEncKey = tokenInfo.getDataProtectionKey();
ek = tokenInfo.getEncryptedKey();
ArrayList targets = featureBinding.getTargetBindings();
Iterator targetItr = targets.iterator();
ETHandler edBuilder = new ETHandler(context.getSOAPVersion());
EncryptionPolicy.FeatureBinding binding = (FeatureBinding) wssPolicy.getFeatureBinding();
dataRefList = new ReferenceList();
if(ek == null || binding.getUseStandAloneRefList()){
edKeyInfo = tokenInfo.getKeyInfo();
}
boolean refAdded = false;
while (targetItr.hasNext()) {
EncryptionTarget target = (EncryptionTarget)targetItr.next();
boolean contentOnly = target.getContentOnly();
//target.getDataEncryptionAlgorithm();
//target.getCipherReferenceTransforms();//TODO support this
List edList = edBuilder.buildEDList( (EncryptionPolicy)wssPolicy,target ,context, dataEncKey,edKeyInfo);
for(int i =0;i< edList.size();i++){
JAXBElement<ReferenceType> rt = elementFactory.createDataReference((SecurityElement)edList.get(i));
dataRefList.getDataReferenceOrKeyReference().add(rt);
refAdded = true;
}
}
if(refAdded){
if(ek == null || (binding.getUseStandAloneRefList())){
context.getSecurityHeader().add(elementFactory.createGSHeaderElement(dataRefList));
}else{
ek.setReferenceList(dataRefList);
}
}
}
/**
*
* @param elemName
* @param uri
* @param contentOnly
* @throws XWSSecurityException
*/
private void checkBSP5607(String elemName, String uri, boolean contentOnly) throws XWSSecurityException {
// BSP: 5607
if (!contentOnly && (MessageConstants.SOAP_1_1_NS.equalsIgnoreCase(uri) || MessageConstants.SOAP_1_2_NS.equalsIgnoreCase(uri))
&& ("Header".equalsIgnoreCase(elemName) || "Envelope".equalsIgnoreCase(elemName) || "Body".equalsIgnoreCase(elemName))) {
logger.log(Level.SEVERE,LogStringsMessages.WSS_1918_ILLEGAL_ENCRYPTION_TARGET(uri, elemName));
throw new XWSSecurityException("Encryption of SOAP " + elemName + " is not allowed"); // BSP 5607
}
}
}