Metacat

/**

 * This work was created by participants in the DataONE project, and is

 * jointly copyrighted by participating institutions in DataONE. For 

 * more information on DataONE, see our web site at http://dataone.org.

 *

 *   Copyright ${year}

 *

 * 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.

 * 

 * $Id: StartRequest.java 7737 2013-05-22 06:05:30Z leinfelder $

 */

package edu.ucsb.nceas.metacat.portal;

import javax.servlet.http.Cookie;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import edu.uiuc.ncsa.myproxy.oa4mp.client.OA4MPResponse;

import edu.uiuc.ncsa.myproxy.oa4mp.client.servlet.ClientServlet;

import edu.uiuc.ncsa.myproxy.oa4mp.client.storage.AssetStoreUtil;

import edu.uiuc.ncsa.security.core.Identifier;

import edu.uiuc.ncsa.security.core.exceptions.ServerSideException;

import edu.uiuc.ncsa.security.servlet.JSPUtil;

/**

 * A very simple sample servlet showing how a portal can start delegation. This just does the

 * initial request then a redirect

 * so there is nothing to display to the user.

 * <p>Created by Jeff Gaynor<br>

 * on Jun 18, 2010 at  2:10:58 PM

 */

public class StartRequest extends ClientServlet {

	@Override

    protected void doIt(HttpServletRequest request, HttpServletResponse response) throws Throwable {

        info("1.a. Starting transaction");

        OA4MPResponse gtwResp = null;

        // Drumroll please: here is the work for this call.

        try {

            Identifier id = AssetStoreUtil.createID();

            gtwResp = getOA4MPService().requestCert(id);

            // if there is a store, store something in it.

            Cookie cookie = new Cookie(OA4MP_CLIENT_REQUEST_ID, id.getUri().toString());

            response.addCookie(cookie);

        } catch (Throwable t) {

            if (t instanceof ServerSideException) {

                ServerSideException sse = (ServerSideException) t;

                //nothing was, in fact, returned from the server.

                if (!sse.isTrivial()) {

                    if (getCE().isDebugOn()) {

                        t.printStackTrace();

                    }

                    for (String key : sse.getQueryParameters().keySet()) {

                        request.setAttribute(key, sse.getQueryParameters().get(key));

                    }

                    String contextPath = request.getContextPath();

                    if (!contextPath.endsWith("/")) {

                        contextPath = contextPath + "/";

                    }

                    request.setAttribute("action", contextPath);

                    JSPUtil.handleException(sse.getCause(), request, response, "/pages/client-error.jsp");

                    if (sse.getRedirect() != null) {

                        response.sendRedirect(sse.getRedirect().toString());

                    }

                    return;

                }

                JSPUtil.handleException(t, request, response, "/pages/client-error.jsp");

                return;

            }

            throw t;

        }

        String target = request.getParameter("target");

    	if (target != null) {

        	request.getSession().setAttribute("target", target);

    	}

        response.sendRedirect(gtwResp.getRedirect().toString());

    }

}