SpmlR2SoapBinding.java

package org.atricore.idbus.capabilities.spmlr2.main.binding;

import oasis.names.tc.spml._2._0.RequestType;
import oasis.names.tc.spml._2._0.wsdl.SPMLRequestPortType;
import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.cxf.message.MessageContentsList;
import org.atricore.idbus.kernel.main.federation.metadata.EndpointDescriptor;
import org.atricore.idbus.kernel.main.mediation.*;
import org.atricore.idbus.kernel.main.mediation.camel.component.binding.AbstractMediationBinding;
import org.atricore.idbus.kernel.main.mediation.camel.component.binding.AbstractMediationSoapBinding;
import org.atricore.idbus.kernel.main.mediation.camel.component.binding.CamelMediationExchange;
import org.atricore.idbus.kernel.main.mediation.camel.component.binding.CamelMediationMessage;
import org.atricore.idbus.kernel.main.mediation.state.LocalState;
import org.atricore.idbus.kernel.main.mediation.state.ProviderStateContext;

import javax.xml.ws.Service;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.List;

/**
 * @author <a href=mailto:sgonzalez@atricore.org>Sebastian Gonzalez Oyuela</a>
 */
public class SpmlR2SoapBinding extends AbstractMediationSoapBinding {

    private static final Log logger = LogFactory.getLog(SpmlR2LocalBinding.class);

    public SpmlR2SoapBinding(Channel channel) {
        super(SpmlR2Binding.SPMLR2_SOAP.getValue(), channel);
    }
    
   public MediationMessage createMessage(CamelMediationMessage message) {

        // Get HTTP Exchange from SPML Exchange
        CamelMediationExchange spmlR2exchange = message.getExchange();
        Exchange exchange = spmlR2exchange.getExchange();

        logger.debug("Create Message Body from exchange " + exchange.getClass().getName());

        // Converting from CXF Message to SPML Message
        // Is this a CXF message?
        Message in = exchange.getIn();


        if (in.getBody() instanceof MessageContentsList) {

            MessageContentsList mclIn = (MessageContentsList) in.getBody() ;
            logger.debug("Using CXF Message Content : " + mclIn.get(0));

            MediationMessage body;
            LocalState lState = null;
            MediationState state = null;

            /*
            if (mclIn.get(0) instanceof RequestType) {
                // Process Saml Request in SOAP Channel
                // Try to restore provider state based on sessionIndex
                RequestType samlReq = (RequestType) mclIn.get(0);
                try {

                    Method getSessionIndex = samlReq.getClass().getMethod("getSessionIndex");
                    List<String> sessionIndexes = (List<String>) getSessionIndex.invoke(samlReq);

                    if (sessionIndexes != null) {
                        if (sessionIndexes.size() > 0) {
                            // TODO : Right now we support only one session index!
                            String sessionIndex = sessionIndexes.get(0);

                            ProviderStateContext ctx = createProviderStateContext();
                            lState = ctx.retrieve("idpSsoSessionId", sessionIndex);

                            if (logger.isDebugEnabled())
                                logger.debug("Local state was" + (lState == null ? " NOT" : "") + " retrieved for ssoSessionId " + sessionIndex);
                        }
                    }

                } catch (NoSuchMethodException e) {
                    // Ignore this ...
                    if (logger.isTraceEnabled())
                        logger.trace("SAML Request does not have session index : " + e.getMessage());

                } catch (InvocationTargetException e) {
                    logger.error("Cannot recover local state : " + e.getMessage(), e);
                } catch (IllegalAccessException e) {
                    logger.error("Cannot recover local state : " + e.getMessage(), e);
                }

            }

            if (lState == null) {
                // Create a new local state instance ?
                state = createMediationState(exchange);
            } else {
                state = new MediationStateImpl(lState);

            } */

            // Process Saml Response in SOAP Channel
            body = new MediationMessageImpl(
                    in.getMessageId(),
                    mclIn.get(0),
                    null,
                    null,
                    null,
                    state);


            return body;

        } else {
            throw new IllegalArgumentException("Unknown message type " + in.getBody());
        }

    }

    @Override
    public Object sendMessage(MediationMessage message) throws IdentityMediationException {

        if (logger.isTraceEnabled())
            logger.trace("Sending new SPML 2.0 message using SOAP Binding");

        EndpointDescriptor endpoint = message.getDestination();

        String soapEndpoint = endpoint.getLocation();

        // ---------------------------------------------------------
        // Setup CXF Client
        // ---------------------------------------------------------
        Service service = Service.create(SPMLR2MessagingConstants.SERVICE_NAME);
        service.addPort(SPMLR2MessagingConstants.PORT_NAME, javax.xml.ws.soap.SOAPBinding.SOAP11HTTP_BINDING,
                            endpoint.getLocation());



        Object content = message.getContent();

        if (!(content instanceof RequestType )) {
            throw new IdentityMediationException("Unsupported content " + content);
        }


        String soapMethodName = content.getClass().getSimpleName();
        soapMethodName = "spml" + soapMethodName.substring(0, soapMethodName.length() - 4); // Remove Type

        if (logger.isTraceEnabled())
            logger.trace("Using soap method ["+soapMethodName+"]");

        SPMLRequestPortType port = service.getPort(SPMLR2MessagingConstants.PORT_NAME, SPMLRequestPortType.class);

        if (logger.isTraceEnabled())
            logger.trace("Sending SSO SOAP Request: " + content);


        try {
            Method soapMethod = port.getClass().getMethod(soapMethodName, content.getClass());

            Object o = soapMethod.invoke(port, content);

            if (logger.isTraceEnabled())
                logger.trace("Received SSO SOAP Response: " + o);

            return o;

        } catch (NoSuchMethodException e) {
            throw new IdentityMediationException("SOAP Method not impelmented " + soapMethodName + ": " +
                    e.getMessage(), e);

        } catch (Exception e) {
            throw new IdentityMediationException("SOAP Method not impelmented " + soapMethodName + ": " +
                    e.getMessage(), e);
        }

    }
}