SAMLHandlerChainProcessor.java

/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2008, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * 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.picketlink.identity.federation.web.process;

import java.io.IOException;
import java.util.LinkedHashSet;
import java.util.Set;
import java.util.concurrent.locks.Lock;

import org.picketlink.identity.federation.core.exceptions.ProcessingException;
import org.picketlink.identity.federation.core.saml.v2.interfaces.SAML2Handler;
import org.picketlink.identity.federation.core.saml.v2.interfaces.SAML2HandlerRequest;
import org.picketlink.identity.federation.core.saml.v2.interfaces.SAML2HandlerResponse;
import org.picketlink.identity.federation.saml.v2.SAML2Object;
import org.picketlink.identity.federation.saml.v2.protocol.RequestAbstractType;
import org.picketlink.identity.federation.web.core.HTTPContext;

/**
 * Processor for the SAML2 Handler Chain
 *
 * @author Anil.Saldhana@redhat.com
 * @since Oct 27, 2009
 */
public class SAMLHandlerChainProcessor {
    private final Set<SAML2Handler> handlers = new LinkedHashSet<SAML2Handler>();

    public SAMLHandlerChainProcessor(Set<SAML2Handler> handlers) {
        this.handlers.addAll(handlers);
    }

    public void callHandlerChain(SAML2Object samlObject, SAML2HandlerRequest saml2HandlerRequest,
            SAML2HandlerResponse saml2HandlerResponse, HTTPContext httpContext, Lock chainLock) throws ProcessingException,
            IOException {
        try {
            chainLock.lock();
            // Deal with handler chains
            for (SAML2Handler handler : handlers) {
                if (saml2HandlerResponse.isInError()) {
                    httpContext.getResponse().sendError(saml2HandlerResponse.getErrorCode());
                    break;
                }
                if (samlObject instanceof RequestAbstractType) {
                    handler.handleRequestType(saml2HandlerRequest, saml2HandlerResponse);
                } else {
                    handler.handleStatusResponseType(saml2HandlerRequest, saml2HandlerResponse);
                }
            }
        } finally {
            chainLock.unlock();
        }
    }
}