/*
* 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.saml.v2.util;
import org.jboss.security.xacml.core.JBossRequestContext;
import org.jboss.security.xacml.core.model.context.RequestType;
import org.jboss.security.xacml.core.model.context.ResponseType;
import org.jboss.security.xacml.core.model.context.ResultType;
import org.jboss.security.xacml.interfaces.PolicyDecisionPoint;
import org.jboss.security.xacml.interfaces.RequestContext;
import org.jboss.security.xacml.interfaces.ResponseContext;
import org.picketlink.common.exceptions.ConfigurationException;
import org.picketlink.common.exceptions.ParsingException;
import org.picketlink.common.exceptions.ProcessingException;
import org.picketlink.common.util.DocumentUtil;
import org.picketlink.common.util.StaxParserUtil;
import org.picketlink.identity.federation.core.factories.XACMLContextFactory;
import org.picketlink.identity.federation.core.parsers.saml.SAMLParser;
import org.picketlink.identity.federation.core.parsers.saml.xacml.SAMLXACMLRequestParser;
import org.picketlink.identity.federation.core.saml.v2.common.IDGenerator;
import org.picketlink.identity.federation.core.saml.v2.factories.JBossSAMLAuthnResponseFactory;
import org.picketlink.identity.federation.core.saml.v2.factories.SAMLAssertionFactory;
import org.picketlink.identity.federation.core.saml.v2.holders.IssuerInfoHolder;
import org.picketlink.identity.federation.core.util.JAXPValidationUtil;
import org.picketlink.identity.federation.saml.v2.assertion.AssertionType;
import org.picketlink.identity.federation.saml.v2.assertion.StatementAbstractType;
import org.picketlink.identity.federation.saml.v2.profiles.xacml.assertion.XACMLAuthzDecisionStatementType;
import org.picketlink.identity.federation.saml.v2.protocol.ResponseType.RTChoiceType;
import org.picketlink.identity.federation.saml.v2.protocol.XACMLAuthzDecisionQueryType;
import org.w3c.dom.Node;
import javax.xml.stream.XMLEventReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
/**
* Utility associated with SOAP 1.1 Envelope, SAML2 and XACML2
*
* @author Anil.Saldhana@redhat.com
* @since Jan 28, 2009
*/
public class SOAPSAMLXACMLUtil {
/**
* Parse the XACML Authorization Decision Query from the Dom Element
*
* @param samlRequest
*
* @return
*
* @throws ProcessingException
* @throws ConfigurationException
* @throws ParsingException
*/
public static XACMLAuthzDecisionQueryType getXACMLQueryType(Node samlRequest) throws ParsingException,
ConfigurationException, ProcessingException {
// We reparse it because the document may have issues with namespaces
// String elementString = DocumentUtil.getDOMElementAsString(samlRequest);
XMLEventReader xmlEventReader = StaxParserUtil.getXMLEventReader(DocumentUtil.getNodeAsStream(samlRequest));
SAMLXACMLRequestParser samlXACMLRequestParser = new SAMLXACMLRequestParser();
return (XACMLAuthzDecisionQueryType) samlXACMLRequestParser.parse(xmlEventReader);
}
public static XACMLAuthzDecisionStatementType getDecisionStatement(Node samlResponse) throws ConfigurationException,
ProcessingException, ParsingException {
XMLEventReader xmlEventReader = StaxParserUtil.getXMLEventReader(DocumentUtil.getNodeAsStream(samlResponse));
SAMLParser samlParser = new SAMLParser();
JAXPValidationUtil.checkSchemaValidation(samlResponse);
org.picketlink.identity.federation.saml.v2.protocol.ResponseType response = (org.picketlink.identity.federation.saml.v2.protocol.ResponseType) samlParser
.parse(xmlEventReader);
List<RTChoiceType> choices = response.getAssertions();
for (RTChoiceType rst : choices) {
AssertionType assertion = rst.getAssertion();
if (assertion == null)
continue;
Set<StatementAbstractType> stats = assertion.getStatements();
for (StatementAbstractType stat : stats) {
if (stat instanceof XACMLAuthzDecisionStatementType) {
return (XACMLAuthzDecisionStatementType) stat;
}
}
}
throw new RuntimeException("Not found XACMLAuthzDecisionStatementType");
}
public static synchronized org.picketlink.identity.federation.saml.v2.protocol.ResponseType handleXACMLQuery(
PolicyDecisionPoint pdp, String issuer, XACMLAuthzDecisionQueryType xacmlRequest) throws ProcessingException,
ConfigurationException {
RequestType requestType = xacmlRequest.getRequest();
RequestContext requestContext = new JBossRequestContext();
try {
requestContext.setRequest(requestType);
} catch (IOException e) {
throw new ProcessingException(e);
}
// pdp evaluation is thread safe
ResponseContext responseContext = pdp.evaluate(requestContext);
ResponseType responseType = new ResponseType();
ResultType resultType = responseContext.getResult();
responseType.getResult().add(resultType);
XACMLAuthzDecisionStatementType xacmlStatement = XACMLContextFactory.createXACMLAuthzDecisionStatementType(requestType,
responseType);
// Place the xacml statement in an assertion
// Then the assertion goes inside a SAML Response
String ID = IDGenerator.create("ID_");
IssuerInfoHolder issuerInfo = new IssuerInfoHolder(issuer);
List<StatementAbstractType> statements = new ArrayList<StatementAbstractType>();
statements.add(xacmlStatement);
AssertionType assertion = SAMLAssertionFactory.createAssertion(ID, issuerInfo.getIssuer(),
XMLTimeUtil.getIssueInstant(), null, null, statements);
org.picketlink.identity.federation.saml.v2.protocol.ResponseType samlResponseType = JBossSAMLAuthnResponseFactory
.createResponseType(ID, issuerInfo, assertion);
return samlResponseType;
}
}