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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.message;
import org.apache.wss4j.dom.WSConstants;
import org.apache.wss4j.common.ext.WSSecurityException;
import org.apache.wss4j.common.util.XMLUtils;
import org.apache.wss4j.dom.util.WSSecurityUtil;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* This class implements WS Security header.
*
* Setup a Security header with a specified actor and mustunderstand flag.
*
* The defaults for actor and mustunderstand are: empty actor and
* mustunderstand is true.
*/
public class WSSecHeader {
private String actor;
private boolean mustunderstand = true;
private Element securityHeader;
private final Document doc;
private String wsuPrefix = WSConstants.WSU_PREFIX;
/**
* Constructor.
* @param doc The Document to use when creating the security header
*/
public WSSecHeader(Document doc) {
this(null, doc);
}
/**
* Constructor.
*
* @param actor The actor name of the wsse:Security header
* @param doc The Document to use when creating the security header
*/
public WSSecHeader(String actor, Document doc) {
this(actor, true, doc);
}
/**
* Constructor.
*
* @param act The actor name of the wsse:Security header
* @param mu Set mustUnderstand to true or false
* @param doc The Document to use when creating the security header
*/
public WSSecHeader(String act, boolean mu, Document doc) {
actor = act;
mustunderstand = mu;
this.doc = doc;
}
/**
* set actor name.
*
* @param act The actor name of the wsse:Security header
*/
public void setActor(String act) {
actor = act;
}
/**
* Set the mustUnderstand flag for the
* wsse:Security header.
*
* @param mu Set mustUnderstand to true or false
*/
public void setMustUnderstand(boolean mu) {
mustunderstand = mu;
}
/**
* Get the security header document of this instance.
*
* @return The security header element.
*/
public Document getSecurityHeaderDoc() {
return this.doc;
}
/**
* Get the security header element of this instance.
*
* @return The security header element.
*/
public Element getSecurityHeaderElement() {
return securityHeader;
}
public void setSecurityHeaderElement(Element securityHeaderElement) {
this.securityHeader = securityHeaderElement;
}
/**
* Returns whether the security header is empty
*
* @return true if empty or if there is no security header
* false if non empty security header
*/
public boolean isEmpty() throws WSSecurityException {
if (doc == null) {
throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE, "empty",
new Object[] {"The Document of WSSecHeader is null"});
}
if (securityHeader == null) {
securityHeader =
WSSecurityUtil.findWsseSecurityHeaderBlock(
doc, doc.getDocumentElement(), actor, false
);
}
return securityHeader == null || securityHeader.getFirstChild() == null;
}
/**
* Creates a security header and inserts it as child into the SOAP Envelope.
*
* Check if a WS Security header block for an actor is already available in
* the document. If a header block is found return it, otherwise a new
* wsse:Security header block is created and the attributes set
*
* @return A wsse:Security element
*/
public Element insertSecurityHeader() throws WSSecurityException {
//
// If there is already a security header in this instance just return it
//
if (securityHeader != null) {
return securityHeader;
}
if (doc == null) {
throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE, "empty",
new Object[] {"The Document of WSSecHeader is null"});
}
securityHeader =
WSSecurityUtil.findWsseSecurityHeaderBlock(
doc, doc.getDocumentElement(), actor, true
);
String soapNamespace = WSSecurityUtil.getSOAPNamespace(doc.getDocumentElement());
String soapPrefix =
XMLUtils.setNamespace(
securityHeader, soapNamespace, WSConstants.DEFAULT_SOAP_PREFIX
);
if (actor != null && actor.length() > 0) {
String actorLocal = WSConstants.ATTR_ACTOR;
if (WSConstants.URI_SOAP12_ENV.equals(soapNamespace)) {
actorLocal = WSConstants.ATTR_ROLE;
}
securityHeader.setAttributeNS(
soapNamespace,
soapPrefix + ":" + actorLocal,
actor
);
}
if (mustunderstand) {
String mustUnderstandLocal = "1";
if (WSConstants.URI_SOAP12_ENV.equals(soapNamespace)) {
mustUnderstandLocal = "true";
}
securityHeader.setAttributeNS(
soapNamespace,
soapPrefix + ":" + WSConstants.ATTR_MUST_UNDERSTAND,
mustUnderstandLocal
);
}
wsuPrefix = XMLUtils.setNamespace(securityHeader, WSConstants.WSU_NS, WSConstants.WSU_PREFIX);
return securityHeader;
}
public void removeSecurityHeader() throws WSSecurityException {
if (securityHeader == null) {
if (doc == null) {
throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE, "empty",
new Object[] {"The Document of WSSecHeader is null"});
}
securityHeader =
WSSecurityUtil.findWsseSecurityHeaderBlock(
doc, doc.getDocumentElement(), actor, false
);
}
if (securityHeader != null) {
Node parent = securityHeader.getParentNode();
parent.removeChild(securityHeader);
}
}
public String getWsuPrefix() {
return wsuPrefix;
}
}
