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/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.picketlink.identity.federation.api.soap;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.net.URL;
import javax.xml.soap.SOAPConnection;
import javax.xml.soap.SOAPConnectionFactory;
import javax.xml.soap.SOAPException;
import javax.xml.soap.SOAPMessage;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLStreamWriter;
import org.apache.log4j.Logger;
import org.jboss.security.xacml.core.model.context.DecisionType;
import org.jboss.security.xacml.core.model.context.RequestType;
import org.jboss.security.xacml.core.model.context.ResultType;
import org.picketlink.identity.federation.core.ErrorCodes;
import org.picketlink.identity.federation.core.exceptions.ConfigurationException;
import org.picketlink.identity.federation.core.exceptions.ParsingException;
import org.picketlink.identity.federation.core.exceptions.ProcessingException;
import org.picketlink.identity.federation.core.parsers.saml.SAMLResponseParser;
import org.picketlink.identity.federation.core.parsers.util.StaxParserUtil;
import org.picketlink.identity.federation.core.saml.v2.common.IDGenerator;
import org.picketlink.identity.federation.core.saml.v2.constants.JBossSAMLConstants;
import org.picketlink.identity.federation.core.saml.v2.util.DocumentUtil;
import org.picketlink.identity.federation.core.saml.v2.util.XMLTimeUtil;
import org.picketlink.identity.federation.core.saml.v2.writers.SAMLRequestWriter;
import org.picketlink.identity.federation.core.util.SOAPUtil;
import org.picketlink.identity.federation.core.util.StaxUtil;
import org.picketlink.identity.federation.saml.v2.assertion.AssertionType;
import org.picketlink.identity.federation.saml.v2.assertion.NameIDType;
import org.picketlink.identity.federation.saml.v2.profiles.xacml.assertion.XACMLAuthzDecisionStatementType;
import org.picketlink.identity.federation.saml.v2.protocol.ResponseType;
import org.picketlink.identity.federation.saml.v2.protocol.XACMLAuthzDecisionQueryType;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* Class that deals with sending XACML
* Request Response bundled in SAML pay load
* as SOAP Requests
* @author [email protected]
* @since Jul 30, 2009
*/
public class SOAPSAMLXACML
{
protected Logger log = Logger.getLogger(SOAPSAMLXACML.class);
/**
* Given an xacml request
* @param endpoint
* @param issuer
* @param xacmlRequest
* @return
* @throws ProcessingException
* @throws SOAPException
* @throws ParsingException
*/
public Result send(String endpoint, String issuer, RequestType xacmlRequest) throws ProcessingException,
SOAPException, ParsingException
{
try
{
String id = IDGenerator.create("ID_");
XACMLAuthzDecisionQueryType queryType = new XACMLAuthzDecisionQueryType(id, XMLTimeUtil.getIssueInstant());
queryType.setRequest(xacmlRequest);
//Create Issuer
NameIDType nameIDType = new NameIDType();
nameIDType.setValue(issuer);
queryType.setIssuer(nameIDType);
SOAPMessage soapMessage = SOAPUtil.create();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
XMLStreamWriter xmlStreamWriter = StaxUtil.getXMLStreamWriter(baos);
SAMLRequestWriter samlRequestWriter = new SAMLRequestWriter(xmlStreamWriter);
samlRequestWriter.write(queryType);
if (log.isDebugEnabled())
{
log.debug("Sending::" + new String(baos.toByteArray()));
}
Document reqDocument = DocumentUtil.getDocument(new ByteArrayInputStream(baos.toByteArray()));
soapMessage.getSOAPBody().addDocument(reqDocument);
/*Envelope envelope = createEnvelope(jaxbQueryType);
JAXBElement soapRequest = SOAPFactory.getObjectFactory().createEnvelope(envelope);
Marshaller marshaller = SOAPSAMLXACMLUtil.getMarshaller();
Unmarshaller unmarshaller = SOAPSAMLXACMLUtil.getUnmarshaller();
*/
SOAPConnectionFactory connectFactory = SOAPConnectionFactory.newInstance();
SOAPConnection connection = connectFactory.createConnection();
//Send it across the wire
URL url = new URL(endpoint);
SOAPMessage response = connection.call(soapMessage, url);
NodeList nl = response.getSOAPBody().getChildNodes();
Node node = null;
int length = nl != null ? nl.getLength() : 0;
for (int i = 0; i < length; i++)
{
Node n = nl.item(i);
String localName = n.getLocalName();
if (localName.contains(JBossSAMLConstants.RESPONSE.get()))
{
node = n;
break;
}
}
if (node == null)
throw new RuntimeException(ErrorCodes.NULL_VALUE + "Did not find Response node");
XMLEventReader xmlEventReader = StaxParserUtil.getXMLEventReader(DocumentUtil.getNodeAsStream(node));
SAMLResponseParser samlResponseParser = new SAMLResponseParser();
ResponseType responseType = (ResponseType) samlResponseParser.parse(xmlEventReader);
//ResponseType responseType = (ResponseType) response;
AssertionType at = responseType.getAssertions().get(0).getAssertion();
XACMLAuthzDecisionStatementType xst = (XACMLAuthzDecisionStatementType) at.getStatements().iterator().next();
ResultType rt = xst.getResponse().getResult().get(0);
DecisionType dt = rt.getDecision();
return new Result(dt, null);
}
catch (IOException e)
{
throw new ProcessingException(e);
}
catch (ConfigurationException e)
{
throw new ProcessingException(e);
}
}
public static class Result
{
private Element fault = null;
private final DecisionType decisionType;
Result(DecisionType decision, Element fault)
{
this.decisionType = decision;
this.fault = fault;
}
public boolean isResponseAvailable()
{
return decisionType != null;
}
public boolean isFault()
{
return fault != null;
}
public DecisionType getDecision()
{
return decisionType;
}
public Element getFault()
{
return fault;
}
public boolean isPermit()
{
return decisionType == DecisionType.PERMIT;
}
public boolean isDeny()
{
return decisionType == DecisionType.DENY;
}
}
}