/*
* 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.core.parsers.saml;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.events.StartElement;
import org.picketlink.identity.federation.core.exceptions.ConfigurationException;
import org.picketlink.identity.federation.core.exceptions.ParsingException;
import org.picketlink.identity.federation.core.parsers.ParserNamespaceSupport;
import org.picketlink.identity.federation.core.parsers.util.StaxParserUtil;
import org.picketlink.identity.federation.core.saml.v2.constants.JBossSAMLConstants;
import org.picketlink.identity.federation.core.saml.v2.constants.JBossSAMLURIConstants;
import org.picketlink.identity.federation.saml.v2.assertion.AssertionType;
import org.picketlink.identity.federation.saml.v2.assertion.EncryptedAssertionType;
import org.picketlink.identity.federation.saml.v2.assertion.NameIDType;
import org.picketlink.identity.federation.saml.v2.protocol.ResponseType;
import org.picketlink.identity.federation.saml.v2.protocol.ResponseType.RTChoiceType;
import org.picketlink.identity.federation.saml.v2.protocol.StatusResponseType;
import org.w3c.dom.Element;
/**
* Parse the SAML Response
*
* @author Anil.Saldhana@redhat.com
* @since Nov 2, 2010
*/
public class SAMLResponseParser extends SAMLStatusResponseTypeParser implements ParserNamespaceSupport {
private final String RESPONSE = JBossSAMLConstants.RESPONSE.get();
/**
* @see {@link ParserNamespaceSupport#parse(XMLEventReader)}
*/
public Object parse(XMLEventReader xmlEventReader) throws ParsingException {
// Get the startelement
StartElement startElement = StaxParserUtil.getNextStartElement(xmlEventReader);
StaxParserUtil.validate(startElement, RESPONSE);
ResponseType response = (ResponseType) parseBaseAttributes(startElement);
while (xmlEventReader.hasNext()) {
// Let us peek at the next start element
startElement = StaxParserUtil.peekNextStartElement(xmlEventReader);
if (startElement == null)
break;
String elementName = StaxParserUtil.getStartElementName(startElement);
if (JBossSAMLConstants.ISSUER.get().equals(elementName)) {
startElement = StaxParserUtil.getNextStartElement(xmlEventReader);
NameIDType issuer = new NameIDType();
issuer.setValue(StaxParserUtil.getElementText(xmlEventReader));
response.setIssuer(issuer);
} else if (JBossSAMLConstants.SIGNATURE.get().equals(elementName)) {
Element sig = StaxParserUtil.getDOMElement(xmlEventReader);
response.setSignature(sig);
} else if (JBossSAMLConstants.ASSERTION.get().equals(elementName)) {
SAMLAssertionParser assertionParser = new SAMLAssertionParser();
response.addAssertion(new RTChoiceType((AssertionType) assertionParser.parse(xmlEventReader)));
} else if (JBossSAMLConstants.STATUS.get().equals(elementName)) {
response.setStatus(parseStatus(xmlEventReader));
} else if (JBossSAMLConstants.ENCRYPTED_ASSERTION.get().equals(elementName)) {
Element encryptedAssertion = StaxParserUtil.getDOMElement(xmlEventReader);
response.addAssertion(new RTChoiceType(new EncryptedAssertionType(encryptedAssertion)));
} else
throw logger.parserUnknownTag(elementName, startElement.getLocation());
}
return response;
}
/**
* @see {@link ParserNamespaceSupport#supports(QName)}
*/
public boolean supports(QName qname) {
return JBossSAMLURIConstants.PROTOCOL_NSURI.get().equals(qname.getNamespaceURI())
&& RESPONSE.equals(qname.getLocalPart());
}
/**
* Parse the attributes at the response element
*
* @param startElement
* @return
* @throws ConfigurationException
*/
protected StatusResponseType parseBaseAttributes(StartElement startElement) throws ParsingException {
ResponseType response = new ResponseType(super.parseBaseAttributes(startElement));
return response;
}
}