/*
* Copyright 2004,2005 The Apache Software Foundation.
*
* Licensed 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.ws.security.policy.parser.processors;
import javax.xml.namespace.QName;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.ws.policy.PrimitiveAssertion;
import org.apache.ws.security.policy.model.Header;
import org.apache.ws.security.policy.model.PolicyEngineData;
import org.apache.ws.security.policy.model.SignedEncryptedElements;
import org.apache.ws.security.policy.model.SignedEncryptedParts;
import org.apache.ws.security.policy.model.SupportingToken;
import org.apache.ws.security.policy.parser.SecurityPolicy;
import org.apache.ws.security.policy.parser.SecurityPolicyToken;
import org.apache.ws.security.policy.parser.SecurityProcessorContext;
/**
* @author Werner Dittmann (werner@apache.org)
*/
public class SignedPartsElementsProcessor {
private Log log = LogFactory.getLog(getClass());
private boolean initializedSignedParts = false;
private boolean initializedSignedElements = false;
public SignedPartsElementsProcessor() {
}
/**
* Intialize the SignedParts complex token.
*
* This method creates copies of the child tokens that are allowed for
* SignedParts. These tokens are Body and Header. These copies are
* initialized with handler object and then set as child tokens of
* SignedParts. <p/> The handler object must define the methods
* <code>doSignedParts, doBody, doHeader</code>.
*
* @param spt
* The token that will hold the child tokens.
* @throws NoSuchMethodException
*/
private void initializeSignedParts(SecurityPolicyToken spt)
throws NoSuchMethodException {
SecurityPolicyToken tmpSpt = SecurityPolicy.body.copy();
tmpSpt.setProcessTokenMethod(this);
spt.setChildToken(tmpSpt);
tmpSpt = SecurityPolicy.header.copy();
tmpSpt.setProcessTokenMethod(this);
spt.setChildToken(tmpSpt);
}
/**
* Intialize the SignedElements complex token.
*
* This method creates a copy of the child token that is allowed for
* SignedElements. The token is XPath. This copy is initialized with a
* handler object and then set as child token of SignedElements. <p/> The
* handler object must define the method <code>doXPath</code>.
*
* @param spt
* The token that will hold the child tokens.
* @throws NoSuchMethodException
*/
private void initializeSignedElements(SecurityPolicyToken spt)
throws NoSuchMethodException {
SecurityPolicyToken tmpSpt = SecurityPolicy.xPath.copy();
tmpSpt.setProcessTokenMethod(this);
spt.setChildToken(tmpSpt);
}
public Object doSignedParts(SecurityProcessorContext spc) {
log.debug("Processing "
+ spc.readCurrentSecurityToken().getTokenName() + ": "
+ SecurityProcessorContext.ACTION_NAMES[spc.getAction()]);
SecurityPolicyToken spt = spc.readCurrentSecurityToken();
switch (spc.getAction()) {
case SecurityProcessorContext.START:
if (!initializedSignedParts) {
try {
initializeSignedParts(spt);
SignedEncryptedParts parts = (SignedEncryptedParts) spc
.readCurrentPolicyEngineData();
PolicyEngineData parent = spc
.readPreviousPolicyEngineData();
if (parent instanceof SupportingToken) {
// Parent is a supporting token
((SupportingToken) parent).setSignedParts(parts);
}
initializedSignedParts = true;
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return new Boolean(false);
}
}
log.debug(spt.getTokenName());
PrimitiveAssertion pa = spc.getAssertion();
String text = pa.getStrValue();
if (text != null) {
text = text.trim();
log.debug("Value: '" + text.toString() + "'");
}
case SecurityProcessorContext.COMMIT:
break;
case SecurityProcessorContext.ABORT:
break;
}
return new Boolean(true);
}
public Object doSignedElements(SecurityProcessorContext spc) {
log.debug("Processing "
+ spc.readCurrentSecurityToken().getTokenName() + ": "
+ SecurityProcessorContext.ACTION_NAMES[spc.getAction()]);
SecurityPolicyToken spt = spc.readCurrentSecurityToken();
switch (spc.getAction()) {
case SecurityProcessorContext.START:
if (!initializedSignedElements) {
try {
initializeSignedElements(spt);
SignedEncryptedElements elements = (SignedEncryptedElements) spc
.readCurrentPolicyEngineData();
PolicyEngineData parent = spc
.readPreviousPolicyEngineData();
if (parent instanceof SupportingToken) {
// Parent is a supporting token
((SupportingToken) parent)
.setSignedElements(elements);
}
initializedSignedElements = true;
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return new Boolean(false);
}
}
log.debug(spt.getTokenName());
PrimitiveAssertion pa = spc.getAssertion();
String text = pa.getStrValue();
if (text != null) {
text = text.trim();
log.debug("Value: '" + text.toString() + "'");
}
case SecurityProcessorContext.COMMIT:
break;
case SecurityProcessorContext.ABORT:
break;
}
return new Boolean(true);
}
public Object doBody(SecurityProcessorContext spc) {
log.debug("Processing "
+ spc.readCurrentSecurityToken().getTokenName() + ": "
+ SecurityProcessorContext.ACTION_NAMES[spc.getAction()]);
if(spc.getAction() == SecurityProcessorContext.START) {
((SignedEncryptedParts)spc.readCurrentPolicyEngineData()).setBody(true);
}
return new Boolean(true);
}
public Object doHeader(SecurityProcessorContext spc) {
log.debug("Processing "
+ spc.readCurrentSecurityToken().getTokenName() + ": "
+ SecurityProcessorContext.ACTION_NAMES[spc.getAction()]);
if(spc.getAction() == SecurityProcessorContext.START) {
//Extract the sp:Header/@Name and sp:Header/@Namespace attrs
//And create a Header
Header header = new Header();
header.setName(spc.getAssertion().getAttribute(new QName("Name")));
header.setNamespace(spc.getAssertion().getAttribute(new QName("Namespace")));
((SignedEncryptedParts)spc.readCurrentPolicyEngineData()).addHeader(header);
}
return new Boolean(true);
}
public Object doXPath(SecurityProcessorContext spc) {
log.debug("Processing "
+ spc.readCurrentSecurityToken().getTokenName() + ": "
+ SecurityProcessorContext.ACTION_NAMES[spc.getAction()]);
if(spc.getAction() == SecurityProcessorContext.START) {
((SignedEncryptedElements) spc.readCurrentPolicyEngineData())
.addXPathExpression(spc.getAssertion().getStrValue());
}
return new Boolean(true);
}
}