/**
* 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.ArrayList;
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.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.WSSecSignature;
import org.apache.wss4j.dom.util.WSSecurityUtil;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
public class SignatureAction 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.SIGN, callbackHandler, reqData);
WSSecSignature wsSign = new WSSecSignature(reqData.getSecHeader());
wsSign.setIdAllocator(reqData.getWssConfig().getIdAllocator());
wsSign.setAddInclusivePrefixes(reqData.isAddInclusivePrefixes());
wsSign.setWsDocInfo(reqData.getWsDocInfo());
wsSign.setExpandXopInclude(reqData.isExpandXopInclude());
if (signatureToken.getKeyIdentifierId() != 0) {
wsSign.setKeyIdentifierType(signatureToken.getKeyIdentifierId());
}
if (signatureToken.getSignatureAlgorithm() != null) {
wsSign.setSignatureAlgorithm(signatureToken.getSignatureAlgorithm());
}
if (signatureToken.getDigestAlgorithm() != null) {
wsSign.setDigestAlgo(signatureToken.getDigestAlgorithm());
}
if (signatureToken.getC14nAlgorithm() != null) {
wsSign.setSigCanonicalization(signatureToken.getC14nAlgorithm());
}
wsSign.setIncludeSignatureToken(signatureToken.isIncludeToken());
wsSign.setUserInfo(signatureToken.getUser(), passwordCallback.getPassword());
wsSign.setUseSingleCertificate(signatureToken.isUseSingleCert());
if (passwordCallback.getKey() != null) {
wsSign.setSecretKey(passwordCallback.getKey());
} else if (signatureToken.getKey() != null) {
wsSign.setSecretKey(signatureToken.getKey());
} else if (signatureToken.getUser() == null) {
throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE, "noSignatureUser");
}
if (signatureToken.getTokenId() != null) {
wsSign.setCustomTokenId(signatureToken.getTokenId());
}
if (signatureToken.getTokenType() != null) {
wsSign.setCustomTokenValueType(signatureToken.getTokenType());
}
if (signatureToken.getSha1Value() != null) {
wsSign.setEncrKeySha1value(signatureToken.getSha1Value());
}
wsSign.setAttachmentCallbackHandler(reqData.getAttachmentCallbackHandler());
wsSign.setStoreBytesInAttachment(reqData.isStoreBytesInAttachment());
try {
wsSign.prepare(signatureToken.getCrypto());
Element siblingElementToPrepend = null;
boolean signBST = false;
for (WSEncryptionPart part : signatureToken.getParts()) {
if ("STRTransform".equals(part.getName()) && part.getId() == null) {
part.setId(wsSign.getSecurityTokenReferenceURI());
} else if (reqData.isAppendSignatureAfterTimestamp()
&& WSConstants.WSU_NS.equals(part.getNamespace())
&& "Timestamp".equals(part.getName())) {
int originalSignatureActionIndex =
reqData.getOriginalSignatureActionPosition();
// Need to figure out where to put the Signature Element in the header
if (originalSignatureActionIndex > 0) {
Element secHeader = reqData.getSecHeader().getSecurityHeaderElement();
Node lastChild = secHeader.getLastChild();
int count = 0;
while (lastChild != null && count < originalSignatureActionIndex) {
while (lastChild != null && lastChild.getNodeType() != Node.ELEMENT_NODE) {
lastChild = lastChild.getPreviousSibling();
}
count++;
}
if (lastChild instanceof Element) {
siblingElementToPrepend = (Element)lastChild;
}
}
} else if (WSConstants.WSSE_NS.equals(part.getNamespace())
&& WSConstants.BINARY_TOKEN_LN.equals(part.getName())) {
signBST = true;
}
}
if (signBST) {
wsSign.prependBSTElementToHeader();
}
List<WSEncryptionPart> parts = signatureToken.getParts();
if (parts == null || parts.isEmpty()) {
parts = new ArrayList<>(1);
Document doc = reqData.getSecHeader().getSecurityHeaderElement().getOwnerDocument();
parts.add(WSSecurityUtil.getDefaultEncryptionPart(doc));
}
List<javax.xml.crypto.dsig.Reference> referenceList = wsSign.addReferencesToSign(parts);
if (signBST
|| reqData.isAppendSignatureAfterTimestamp() && siblingElementToPrepend == null) {
wsSign.computeSignature(referenceList, false, null);
} else {
wsSign.computeSignature(referenceList, true, siblingElementToPrepend);
}
if (!signBST) {
wsSign.prependBSTElementToHeader();
}
reqData.getSignatureValues().add(wsSign.getSignatureValue());
} catch (WSSecurityException e) {
throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE, e, "empty",
new Object[] {"Error during Signature: "});
}
}
}