SpnegoHttpInitiatorBinding.java

/*
 * Atricore IDBus
 *
 * Copyright (c) 2009, Atricore Inc.
 *
 * 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.atricore.idbus.capabilities.spnego;

import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.atricore.idbus.kernel.main.federation.metadata.EndpointDescriptor;
import org.atricore.idbus.kernel.main.mediation.Channel;
import org.atricore.idbus.kernel.main.mediation.MediationMessage;
import org.atricore.idbus.kernel.main.mediation.MediationMessageImpl;
import org.atricore.idbus.kernel.main.mediation.MediationState;
import org.atricore.idbus.kernel.main.mediation.camel.component.binding.AbstractMediationHttpBinding;
import org.atricore.idbus.kernel.main.mediation.camel.component.binding.CamelMediationMessage;

import java.util.Map;

/**
 * @author <a href="mailto:gbrigandi@atricore.org">Gianluca Brigandi</a>
 * @version $Id$
 */
public class SpnegoHttpInitiatorBinding extends AbstractMediationHttpBinding {

    private static final Log logger = LogFactory.getLog(SpnegoHttpInitiatorBinding.class);

    protected SpnegoHttpInitiatorBinding(Channel channel) {
        super(SpnegoBinding.SPNEGO_HTTP_INITIATION.getValue(), channel);
    }

    public MediationMessage createMessage(CamelMediationMessage message) {
        throw new UnsupportedOperationException("Spnego Initiator Endpoint in channel " + channel.getName() +
                " cannot be accessed directly");
    }

    public void copyMessageToExchange(CamelMediationMessage spnegoOut, Exchange exchange) {

        // TODO : Better error handling

        MediationMessage<SpnegoMessage> out = spnegoOut.getMessage();
        EndpointDescriptor ed = out.getDestination();

        Message httpOut = exchange.getOut();
        Message httpIn = exchange.getIn();

        SpnegoMessage sm = out.getContent();

        copyBackState(out.getState(), exchange);

        if (sm instanceof InitiateSpnegoNegotiation) {
            InitiateSpnegoNegotiation isn = (InitiateSpnegoNegotiation) sm;
            logger.debug("Initiating Spnego Negotiation on " + isn.getSpnegoInitiationEndpoint());

            httpOut.getHeaders().put("Cache-Control", "no-cache, no-store");
            httpOut.getHeaders().put("Pragma", "no-cache");
            httpOut.getHeaders().put("http.responseCode", 302);
            httpOut.getHeaders().put("Content-Type", "text/html");
            httpOut.getHeaders().put("Location", isn.getSpnegoInitiationEndpoint());
            handleCrossOriginResourceSharing(exchange);
        }

    }
}