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/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.xml.ws.security.secconv;
import com.sun.xml.ws.api.security.secconv.client.SCTokenConfiguration;
import com.sun.xml.ws.policy.impl.bindings.AppliesTo;
import com.sun.xml.ws.security.IssuedTokenContext;
import com.sun.xml.ws.security.SecurityContextToken;
import com.sun.xml.ws.security.SecurityContextTokenInfo;
import com.sun.xml.ws.security.secconv.impl.SecurityContextTokenInfoImpl;
import com.sun.xml.ws.security.secconv.logging.LogDomainConstants;
import com.sun.xml.ws.security.secconv.logging.LogStringsMessages;
import com.sun.xml.ws.security.trust.WSTrustVersion;
import com.sun.xml.ws.security.trust.elements.BinarySecret;
import com.sun.xml.ws.security.trust.elements.Entropy;
import com.sun.xml.ws.security.trust.elements.Lifetime;
import com.sun.xml.ws.security.trust.elements.RequestSecurityToken;
import com.sun.xml.ws.security.trust.elements.RequestSecurityTokenResponse;
import com.sun.xml.ws.security.trust.elements.RequestSecurityTokenResponseCollection;
import com.sun.xml.ws.security.trust.elements.RequestedAttachedReference;
import com.sun.xml.ws.security.trust.elements.RequestedProofToken;
import com.sun.xml.ws.security.trust.elements.RequestedSecurityToken;
import com.sun.xml.ws.security.trust.elements.RequestedTokenCancelled;
import com.sun.xml.ws.security.trust.elements.RequestedUnattachedReference;
import com.sun.xml.ws.security.trust.util.WSTrustUtil;
import com.sun.xml.ws.security.wsu10.AttributedDateTime;
import com.sun.xml.wss.impl.misc.SecurityUtil;
import java.net.URI;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
public class WSSCClientContract {
private static final Logger log =
Logger.getLogger(
LogDomainConstants.WSSC_IMPL_DOMAIN,
LogDomainConstants.WSSC_IMPL_DOMAIN_BUNDLE);
private static final int DEFAULT_KEY_SIZE = 256;
private WSSCVersion wsscVer = WSSCVersion.WSSC_10;
private WSTrustVersion wsTrustVer = WSTrustVersion.WS_TRUST_10;
/**
* Handle an RSTR returned by the Issuer and update Token information into the
* IssuedTokenContext.
*/
public void handleRSTR(
final RequestSecurityToken rst, final RequestSecurityTokenResponse rstr, final IssuedTokenContext context) throws WSSecureConversationException {
if(!context.getSecurityPolicy().isEmpty()){
SCTokenConfiguration sctConfig = (SCTokenConfiguration)context.getSecurityPolicy().get(0);
wsscVer = WSSCVersion.getInstance(sctConfig.getProtocol());
}
if(wsscVer.getNamespaceURI().equals(WSSCVersion.WSSC_13_NS_URI)){
wsTrustVer = WSTrustVersion.WS_TRUST_13;
}
if (rst.getRequestType().toString().equals(wsTrustVer.getIssueRequestTypeURI())){
// ToDo
//final AppliesTo requestAppliesTo = rst.getAppliesTo();
//final AppliesTo responseAppliesTo = rstr.getAppliesTo();
final RequestedSecurityToken securityToken = rstr.getRequestedSecurityToken();
// Requested References
final RequestedAttachedReference attachedRef = rstr.getRequestedAttachedReference();
final RequestedUnattachedReference unattachedRef = rstr.getRequestedUnattachedReference();
// RequestedProofToken
final RequestedProofToken proofToken = rstr.getRequestedProofToken();
// Obtain the secret key for the context
final byte[] key = getKey(rstr, proofToken, rst);
if(key != null){
context.setProofKey(key);
}
//get the creation time and expires time and set it in the context
setLifetime(rstr, context);
if(securityToken == null && proofToken == null){
log.log(Level.SEVERE,
LogStringsMessages.WSSC_0002_NULL_TOKEN());
throw new WSSecureConversationException(LogStringsMessages.WSSC_0002_NULL_TOKEN());
}
if (securityToken != null){
context.setSecurityToken(securityToken.getToken());
}
if(attachedRef != null){
context.setAttachedSecurityTokenReference(attachedRef.getSTR());
}
if (unattachedRef != null){
context.setUnAttachedSecurityTokenReference(unattachedRef.getSTR());
}
}if (rst.getRequestType().toString().equals(wsTrustVer.getRenewRequestTypeURI())){
final RequestedSecurityToken securityToken = rstr.getRequestedSecurityToken();
// RequestedProofToken
final RequestedProofToken proofToken = rstr.getRequestedProofToken();
// Obtain the secret key for the context
final byte[] key = getKey(rstr, proofToken, rst);
//get the creation time and expires time and set it in the context
setLifetime(rstr, context);
if (securityToken != null){
context.setSecurityToken(securityToken.getToken());
}
SecurityContextTokenInfo sctInfo = null;
if(context.getSecurityContextTokenInfo() == null){
sctInfo = new SecurityContextTokenInfoImpl();
}else{
sctInfo = context.getSecurityContextTokenInfo();
}
sctInfo.setIdentifier(((SecurityContextToken)context.getSecurityToken()).getIdentifier().toString());
sctInfo.setInstance(((SecurityContextToken)context.getSecurityToken()).getInstance());
sctInfo.setExternalId(((SecurityContextToken)context.getSecurityToken()).getWsuId());
if(key != null){
sctInfo.addInstance(((SecurityContextToken)context.getSecurityToken()).getInstance(), key);
}
context.setSecurityContextTokenInfo(sctInfo);
}else if (rst.getRequestType().toString().equals(wsTrustVer.getCancelRequestTypeURI())){
// Check if the rstr contains the RequestTedTokenCancelled element
// if yes cleanup the IssuedTokenContext accordingly
final RequestedTokenCancelled cancelled = rstr.getRequestedTokenCancelled();
if(cancelled!=null){
//context.setSecurityToken(null);
context.setProofKey(null);
}
}
}
/**
* Handle an RSTRC returned by the Issuer and update Token information into the
* IssuedTokenContext.
*/
public void handleRSTRC(
final RequestSecurityToken rst, final RequestSecurityTokenResponseCollection rstrc, final IssuedTokenContext context) throws WSSecureConversationException {
List rstrList = rstrc.getRequestSecurityTokenResponses();
Iterator rstrIterator = rstrList.iterator();
RequestSecurityTokenResponse rstr;
while(rstrIterator.hasNext()){
rstr = (RequestSecurityTokenResponse)rstrIterator.next();
this.handleRSTR(rst, rstr, context);
}
}
private byte[] getKey(final RequestSecurityTokenResponse rstr, final RequestedProofToken proofToken, final RequestSecurityToken rst) throws UnsupportedOperationException, WSSecureConversationException, WSSecureConversationException, UnsupportedOperationException {
byte[] key = null;
if (proofToken != null){
final String proofTokenType = proofToken.getProofTokenType();
if (RequestedProofToken.COMPUTED_KEY_TYPE.equals(proofTokenType)){
key = computeKey(rstr, proofToken, rst);
} else if (RequestedProofToken.TOKEN_REF_TYPE.equals(proofTokenType)){
//ToDo
throw new UnsupportedOperationException("To Do");
} else if (RequestedProofToken.ENCRYPTED_KEY_TYPE.equals(proofTokenType)){
//ToDo
throw new UnsupportedOperationException("To Do");
} else if (RequestedProofToken.BINARY_SECRET_TYPE.equals(proofTokenType)){
final BinarySecret binarySecret = proofToken.getBinarySecret();
key = binarySecret.getRawValue();
} else{
log.log(Level.SEVERE,
LogStringsMessages.WSSC_0003_INVALID_PROOFTOKEN(proofTokenType));
throw new WSSecureConversationException(LogStringsMessages.WSSC_0003_INVALID_PROOFTOKEN(proofTokenType));
}
}
return key;
}
private void setLifetime(final RequestSecurityTokenResponse rstr, final IssuedTokenContext context){
// Get Created and Expires from Lifetime
final Lifetime lifetime = rstr.getLifetime();
final AttributedDateTime created = lifetime.getCreated();
final AttributedDateTime expires = lifetime.getExpires();
// populate the IssuedTokenContext
if (created != null){
context.setCreationTime(WSTrustUtil.parseAttributedDateTime(created));
}else{
// set the current time as specified in the spec.
context.setCreationTime(new Date());
}
if (expires != null){
context.setExpirationTime(WSTrustUtil.parseAttributedDateTime(expires));
}
}
private byte[] computeKey(final RequestSecurityTokenResponse rstr, final RequestedProofToken proofToken, final RequestSecurityToken rst) throws WSSecureConversationException, UnsupportedOperationException {
// get ComputeKey algorithm URI, client entropy, server entropy and compute
// the SecretKey
final URI computedKey = proofToken.getComputedKey();
final Entropy clientEntropy = rst.getEntropy();
final Entropy serverEntropy = rstr.getEntropy();
final BinarySecret clientBS = clientEntropy.getBinarySecret();
final BinarySecret serverBS = serverEntropy.getBinarySecret();
byte [] clientEntr = null;
byte [] serverEntr = null;
if(clientBS!=null){
clientEntr = clientBS.getRawValue();
}
if(serverBS!=null){
serverEntr = serverBS.getRawValue();
}
byte[] key = null;
int keySize = (int)rstr.getKeySize();
if(keySize == 0){
keySize = (int)rst.getKeySize();//get it from the request
}
if(keySize == 0){
keySize = DEFAULT_KEY_SIZE;//key size is in bits
}
if (log.isLoggable(Level.FINE)) {
log.log(Level.FINE,
LogStringsMessages.WSSC_0005_COMPUTED_KEYSIZE(keySize, DEFAULT_KEY_SIZE));
}
if(computedKey.toString().equals(wsTrustVer.getCKPSHA1algorithmURI())){
try {
key = SecurityUtil.P_SHA1(clientEntr,serverEntr, keySize/8);
} catch (Exception ex) {
log.log(Level.SEVERE,
LogStringsMessages.WSSC_0006_UNABLETOEXTRACT_KEY(), ex);
throw new WSSecureConversationException(LogStringsMessages.WSSC_0006_UNABLETOEXTRACT_KEY(), ex);
}
} else {
log.log(Level.SEVERE,
LogStringsMessages.WSSC_0026_UNSUPPORTED_COMPUTED_KEY(computedKey));
throw new WSSecureConversationException(LogStringsMessages.WSSC_0026_UNSUPPORTED_COMPUTED_KEY_E(computedKey));
}
return key;
}
/**
* Handle an RSTR returned by the Issuer and Respond to the Challenge
*
*/
public RequestSecurityTokenResponse handleRSTRForNegotiatedExchange(
final RequestSecurityToken rst, final RequestSecurityTokenResponse rstr, final IssuedTokenContext context) throws WSSecureConversationException {
return null;
}
/**
* Create an RSTR for a client initiated IssuedTokenContext establishment,
* for example a Client Initiated WS-SecureConversation context.
*
*/
public RequestSecurityTokenResponse createRSTRForClientInitiatedIssuedTokenContext(final AppliesTo scopes,final IssuedTokenContext context) throws WSSecureConversationException {
final WSSCElementFactory eleFac = WSSCElementFactory.newInstance();
final byte[] secret = WSTrustUtil.generateRandomSecret(DEFAULT_KEY_SIZE);
final BinarySecret binarySecret = eleFac.createBinarySecret(secret, this.wsTrustVer.getSymmetricKeyTypeURI());
final RequestedProofToken proofToken = eleFac.createRequestedProofToken();
proofToken.setProofTokenType(RequestedProofToken.BINARY_SECRET_TYPE);
proofToken.setBinarySecret(binarySecret);
final SecurityContextToken token = WSTrustUtil.createSecurityContextToken(eleFac);
final RequestedSecurityToken rst = eleFac.createRequestedSecurityToken(token);
final RequestSecurityTokenResponse rstr = eleFac.createRSTR();
rstr.setAppliesTo(scopes);
rstr.setRequestedSecurityToken(rst);
rstr.setRequestedProofToken(proofToken);
context.setSecurityToken(token);
context.setProofKey(secret);
if (log.isLoggable(Level.FINE)) {
log.log(Level.FINE,
LogStringsMessages.WSSC_0007_CREATED_RSTR(rstr.toString()));
}
return rstr;
}
/**
* Contains Challenge
* @return true if the RSTR contains a SignChallenge/BinaryExchange or
* some other custom challenge recognized by this implementation.
*/
public boolean containsChallenge(final RequestSecurityTokenResponse rstr) {
return false;
}
/**
* Return the <wst:ComputedKey> URI if any inside the RSTR, null otherwise
*/
public URI getComputedKeyAlgorithmFromProofToken(final RequestSecurityTokenResponse rstr) {
return null;
}
}
