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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.wss4j.dom.action;
import java.util.List;
import javax.security.auth.callback.CallbackHandler;
import org.apache.wss4j.common.SecurityActionToken;
import org.apache.wss4j.common.SignatureActionToken;
import org.apache.wss4j.common.WSEncryptionPart;
import org.apache.wss4j.common.crypto.Crypto;
import org.apache.wss4j.common.derivedKey.ConversationConstants;
import org.apache.wss4j.common.ext.WSPasswordCallback;
import org.apache.wss4j.common.ext.WSSecurityException;
import org.apache.wss4j.dom.WSConstants;
import org.apache.wss4j.dom.handler.RequestData;
import org.apache.wss4j.dom.handler.WSHandler;
import org.apache.wss4j.dom.message.WSSecDKSign;
import org.apache.wss4j.dom.util.WSSecurityUtil;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
public class SignatureDerivedAction extends AbstractDerivedAction implements Action {
public void execute(WSHandler handler, SecurityActionToken actionToken, RequestData reqData)
throws WSSecurityException {
CallbackHandler callbackHandler = reqData.getCallbackHandler();
if (callbackHandler == null) {
callbackHandler = handler.getPasswordCallbackHandler(reqData);
}
SignatureActionToken signatureToken = null;
if (actionToken instanceof SignatureActionToken) {
signatureToken = (SignatureActionToken)actionToken;
}
if (signatureToken == null) {
signatureToken = reqData.getSignatureToken();
}
WSPasswordCallback passwordCallback =
handler.getPasswordCB(signatureToken.getUser(), WSConstants.DKT_SIGN, callbackHandler, reqData);
WSSecDKSign wsSign = new WSSecDKSign(reqData.getSecHeader());
wsSign.setIdAllocator(reqData.getWssConfig().getIdAllocator());
wsSign.setAddInclusivePrefixes(reqData.isAddInclusivePrefixes());
wsSign.setWsDocInfo(reqData.getWsDocInfo());
wsSign.setExpandXopInclude(reqData.isExpandXopInclude());
if (signatureToken.getSignatureAlgorithm() != null) {
wsSign.setSignatureAlgorithm(signatureToken.getSignatureAlgorithm());
}
if (signatureToken.getDigestAlgorithm() != null) {
wsSign.setDigestAlgorithm(signatureToken.getDigestAlgorithm());
}
if (signatureToken.getC14nAlgorithm() != null) {
wsSign.setSigCanonicalization(signatureToken.getC14nAlgorithm());
}
wsSign.setUserInfo(signatureToken.getUser(), passwordCallback.getPassword());
if (reqData.isUse200512Namespace()) {
wsSign.setWscVersion(ConversationConstants.VERSION_05_12);
} else {
wsSign.setWscVersion(ConversationConstants.VERSION_05_02);
}
if (signatureToken.getDerivedKeyLength() > 0) {
wsSign.setDerivedKeyLength(signatureToken.getDerivedKeyLength());
}
Document doc = reqData.getSecHeader().getSecurityHeaderElement().getOwnerDocument();
Element tokenElement =
setupTokenReference(reqData, signatureToken, wsSign, passwordCallback, doc);
wsSign.setAttachmentCallbackHandler(reqData.getAttachmentCallbackHandler());
wsSign.setStoreBytesInAttachment(reqData.isStoreBytesInAttachment());
try {
List parts = signatureToken.getParts();
if (parts != null && !parts.isEmpty()) {
wsSign.getParts().addAll(parts);
} else {
wsSign.getParts().add(WSSecurityUtil.getDefaultEncryptionPart(doc));
}
wsSign.prepare();
List referenceList = wsSign.addReferencesToSign(wsSign.getParts());
// Put the DerivedKeyToken Element in the right place in the security header
Node nextSibling = null;
if (tokenElement == null
&& "EncryptedKey".equals(signatureToken.getDerivedKeyTokenReference())) {
nextSibling = findEncryptedKeySibling(reqData);
} else if (tokenElement == null
&& "SecurityContextToken".equals(signatureToken.getDerivedKeyTokenReference())) {
nextSibling = findSCTSibling(reqData);
}
if (nextSibling == null) {
wsSign.computeSignature(referenceList);
} else {
wsSign.computeSignature(referenceList, true, (Element)nextSibling);
}
if (nextSibling == null) {
wsSign.prependDKElementToHeader();
} else {
reqData.getSecHeader().getSecurityHeaderElement().insertBefore(
wsSign.getdktElement(), wsSign.getSignatureElement());
}
if (tokenElement != null) {
WSSecurityUtil.prependChildElement(reqData.getSecHeader().getSecurityHeaderElement(), tokenElement);
}
reqData.getSignatureValues().add(wsSign.getSignatureValue());
} catch (WSSecurityException e) {
throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE, e, "empty",
new Object[] {"Error during Signature: "});
}
}
private Element setupTokenReference(
RequestData reqData, SignatureActionToken signatureToken,
WSSecDKSign wsSign, WSPasswordCallback passwordCallback,
Document doc
) throws WSSecurityException {
String derivedKeyTokenReference = signatureToken.getDerivedKeyTokenReference();
if ("EncryptedKey".equals(derivedKeyTokenReference)) {
return setupEKReference(wsSign, reqData.getSecHeader(), passwordCallback, signatureToken, reqData.getEncryptionToken(),
reqData.isUse200512Namespace(), doc, null, null);
} else if ("SecurityContextToken".equals(derivedKeyTokenReference)) {
return setupSCTReference(wsSign, passwordCallback, signatureToken, reqData.getEncryptionToken(),
reqData.isUse200512Namespace(), doc);
} else {
// DirectReference
if (signatureToken.getDerivedKeyIdentifier() != 0) {
wsSign.setKeyIdentifierType(signatureToken.getDerivedKeyIdentifier());
} else {
wsSign.setKeyIdentifierType(WSConstants.THUMBPRINT_IDENTIFIER);
}
byte[] key = null;
if (passwordCallback.getKey() != null) {
key = passwordCallback.getKey();
} else if (signatureToken.getKey() != null) {
key = signatureToken.getKey();
} else if (signatureToken.getCrypto() != null) {
Crypto crypto = signatureToken.getCrypto();
key = crypto.getPrivateKey(signatureToken.getUser(), passwordCallback.getPassword()).getEncoded();
}
wsSign.setCrypto(signatureToken.getCrypto());
wsSign.setExternalKey(key, (String)null);
return null;
}
}
}
