it.intecs.pisa.toolbox.security.handler.EOP_SAMLTokenProcessor.java Source code

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Here is the source code for it.intecs.pisa.toolbox.security.handler.EOP_SAMLTokenProcessor.java

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/*
 * Copyright  2003-2004 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 it.intecs.pisa.toolbox.security.handler;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.ws.security.WSConstants;
import org.apache.ws.security.WSDocInfo;
import org.apache.ws.security.WSSConfig;
import org.apache.ws.security.WSSecurityEngineResult;
import org.apache.ws.security.WSSecurityException;
import org.apache.ws.security.components.crypto.Crypto;
import org.apache.ws.security.processor.EncryptedDataProcessor;
import org.apache.ws.security.processor.Processor;
import org.opensaml.SAMLAssertion;
import org.opensaml.SAMLException;
import org.w3c.dom.Element;

import javax.security.auth.callback.CallbackHandler;
import java.util.Vector;

/**
 * EOP_SAMLTokenProcessor<p>
 * This class implements a processor for the tag Assertion defined in <b>http://earth.esa.it/um/eop/saml</b>.
 * This tag is used in HMAT (<b>User Management Interface for Earth Observation Services, 07-118r1 v.0.0.3</b>) to wrap the WSSecurityEngine.SAML_TOKEN (urn:oasis:names:tc:SAML:1.0:assertion)
 * @author Stefano (stefano.puri@intecs.it)
 * @see org.apache.rampart.RampartEngine.process() which is used to set this Processor
 */

public class EOP_SAMLTokenProcessor implements Processor {
    private static Log log = LogFactory.getLog(EOP_SAMLTokenProcessor.class.getName());

    private String id;
    private Element samlTokenElement;

    public void handleToken(Element elem, Crypto crypto, Crypto decCrypto, CallbackHandler cb, WSDocInfo wsDocInfo,
            Vector returnResults, WSSConfig wsc) throws WSSecurityException {
        if (log.isDebugEnabled()) {
            log.debug("Found SAML Assertion element");
        }
        //the SAML Element is the first child

        Element child = (Element) elem.getFirstChild();
        if (child.getLocalName().indexOf("EncryptedData") != -1) {
            //STE: feature mancante in WSS4J che non si aspetta di trovare un SAML token encrypted che non sia preceduto nell'xml da una relativa EnryptedKey 
            EncryptedDataProcessor proc = new EncryptedDataProcessor();
            proc.handleToken(child, crypto, decCrypto, cb, wsDocInfo, returnResults, wsc);
        }

        SAMLAssertion assertion = handleSAMLToken((Element) elem.getFirstChild());
        this.id = assertion.getId();
        wsDocInfo.setAssertion((Element) elem);
        returnResults.add(0, new WSSecurityEngineResult(WSConstants.ST_UNSIGNED, assertion));
        this.samlTokenElement = elem;

    }

    public SAMLAssertion handleSAMLToken(Element token) throws WSSecurityException {
        boolean result = false;
        SAMLAssertion assertion = null;
        try {
            assertion = new SAMLAssertion(token);
            result = true;
            if (log.isDebugEnabled()) {
                log.debug("SAML Assertion issuer " + assertion.getIssuer());
            }
        } catch (SAMLException e) {
            throw new WSSecurityException(WSSecurityException.FAILURE, "invalidSAMLsecurity", null, e);
        }
        if (!result) {
            throw new WSSecurityException(WSSecurityException.FAILED_AUTHENTICATION);
        }
        return assertion;
    }

    /**
     * Return the id of the SAML token
     */
    public String getId() {
        return this.id;
    }

    public Element getSamlTokenElement() {
        return samlTokenElement;
    }

}