/*
* JBoss, Home of Professional Open Source
*
* Copyright 2013 Red Hat, Inc. and/or its affiliates.
*
* 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.picketlink.identity.federation.core.parsers.saml;
import org.picketlink.common.PicketLinkLogger;
import org.picketlink.common.PicketLinkLoggerFactory;
import org.picketlink.common.constants.JBossSAMLConstants;
import org.picketlink.common.constants.JBossSAMLURIConstants;
import org.picketlink.common.exceptions.ParsingException;
import org.picketlink.common.parsers.ParserNamespaceSupport;
import org.picketlink.common.util.StaxParserUtil;
import org.picketlink.identity.federation.core.parsers.util.SAML11ParserUtil;
import org.picketlink.identity.federation.core.saml.v1.SAML11Constants;
import org.picketlink.identity.federation.saml.v1.assertion.SAML11NameIdentifierType;
import org.picketlink.identity.federation.saml.v1.assertion.SAML11SubjectConfirmationType;
import org.picketlink.identity.federation.saml.v1.assertion.SAML11SubjectType;
import org.picketlink.identity.federation.saml.v1.assertion.SAML11SubjectType.SAML11SubjectTypeChoice;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.events.Attribute;
import javax.xml.stream.events.EndElement;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.XMLEvent;
import java.net.URI;
/**
* Parse the saml subject
*
* @author Anil.Saldhana@redhat.com
* @since Oct 12, 2010
*/
public class SAML11SubjectParser implements ParserNamespaceSupport {
private static final PicketLinkLogger logger = PicketLinkLoggerFactory.getLogger();
/**
* @see {@link ParserNamespaceSupport#parse(XMLEventReader)}
*/
public Object parse(XMLEventReader xmlEventReader) throws ParsingException {
StaxParserUtil.getNextEvent(xmlEventReader);
SAML11SubjectType subject = new SAML11SubjectType();
// Peek at the next event
while (xmlEventReader.hasNext()) {
XMLEvent xmlEvent = StaxParserUtil.peek(xmlEventReader);
if (xmlEvent instanceof EndElement) {
EndElement endElement = (EndElement) xmlEvent;
if (StaxParserUtil.matches(endElement, JBossSAMLConstants.SUBJECT.get())) {
endElement = StaxParserUtil.getNextEndElement(xmlEventReader);
break;
} else
throw logger.parserUnknownEndElement(StaxParserUtil.getEndElementName(endElement));
}
StartElement peekedElement = StaxParserUtil.peekNextStartElement(xmlEventReader);
if (peekedElement == null)
break;
String tag = StaxParserUtil.getStartElementName(peekedElement);
if (SAML11Constants.NAME_IDENTIFIER.equalsIgnoreCase(tag)) {
peekedElement = StaxParserUtil.getNextStartElement(xmlEventReader);
String val = StaxParserUtil.getElementText(xmlEventReader);
SAML11NameIdentifierType nameID = new SAML11NameIdentifierType(val);
Attribute formatAtt = peekedElement.getAttributeByName(new QName(SAML11Constants.FORMAT));
if (formatAtt != null) {
nameID.setFormat(URI.create(StaxParserUtil.getAttributeValue(formatAtt)));
}
Attribute nameQAtt = peekedElement.getAttributeByName(new QName(SAML11Constants.NAME_QUALIFIER));
if (nameQAtt != null) {
nameID.setNameQualifier(StaxParserUtil.getAttributeValue(nameQAtt));
}
SAML11SubjectTypeChoice subChoice = new SAML11SubjectTypeChoice(nameID);
subject.setChoice(subChoice);
} else if (JBossSAMLConstants.SUBJECT_CONFIRMATION.get().equalsIgnoreCase(tag)) {
SAML11SubjectConfirmationType subjectConfirmationType = SAML11ParserUtil
.parseSAML11SubjectConfirmation(xmlEventReader);
subject.setSubjectConfirmation(subjectConfirmationType);
} else
throw logger.parserUnknownTag(tag, peekedElement.getLocation());
}
return subject;
}
/**
* @see {@link ParserNamespaceSupport#supports(QName)}
*/
public boolean supports(QName qname) {
String nsURI = qname.getNamespaceURI();
String localPart = qname.getLocalPart();
return nsURI.equals(JBossSAMLURIConstants.ASSERTION_NSURI.get()) && localPart.equals(JBossSAMLConstants.SUBJECT.get());
}
}