Metacat

/**

 *  '$RCSfile$'

 *  Copyright: 2004 University of New Mexico and the 

 *                  Regents of the University of California

 *

 *   '$Author: jones $'

 *     '$Date: 2004-04-01 16:41:58 -0800 (Thu, 01 Apr 2004) $'

 * '$Revision: 2094 $'

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program 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 General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

 */

package edu.ucsb.nceas.metacat.harvesterClient;

import java.io.PrintWriter;

import javax.servlet.ServletConfig;

import javax.servlet.ServletContext;

import javax.servlet.ServletException;

import javax.servlet.ServletInputStream;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

import javax.servlet.http.HttpUtils;

import javax.servlet.ServletOutputStream;

import edu.ucsb.nceas.metacat.AuthSession;

/**

 *  LoginServlet implements a Harvester servlet to login to Metacat

 */

public class LoginServlet extends HttpServlet {

  public void destroy() {

    // Close all connections

    System.out.println("Destroying LoginServlet");

  }

  /**

   *  Handle "GET" method requests from HTTP clients

   *

   *  @param  request   The request

   *  @param  response  The response

   *  @throws ServletException, java.io.IOException

   */

  public void doGet(HttpServletRequest request, HttpServletResponse response)

          throws ServletException, java.io.IOException {

    // Process the data and send back the response

    handleGetOrPost(request, response);

  }

  /**

   *  Handle "POST" method requests from HTTP clients

   *

   *  @param  request   The request

   *  @param  response  The response

   *  @throws ServletException, java.io.IOException

   */

  public void doPost(HttpServletRequest request, HttpServletResponse response)

          throws ServletException, java.io.IOException {

    // Process the data and send back the response

    handleGetOrPost(request, response);

  }

  /**

   *  Handle "GET" or "POST" method requests from HTTP clients

   *

   *  @param  request   The request

   *  @param  response  The response

   *  @throws ServletException, java.io.IOException

   */

  private void handleGetOrPost(HttpServletRequest request,

                               HttpServletResponse response)

          throws ServletException, java.io.IOException {

    AuthSession authSession = null;

    HttpSession httpSession;

    boolean isValid;

    PrintWriter out = response.getWriter();

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

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

    response.setContentType("text/plain");

    try {

      authSession = new AuthSession();

    } 

    catch (Exception e) {

      out.println("Error creating AuthSession: " + e.getMessage());

      return;

    }

    isValid = authSession.authenticate(request, user, passwd);

    if (isValid) {

      System.out.println(authSession.getMessage());

      httpSession = request.getSession(true);

      httpSession.putValue("Musername", user);

      httpSession.putValue("Mpassword", passwd);

      response.sendRedirect("../style/skins/dev/harvesterUpload.html");

    }

    else {

      out.println("Error authenticating Metacat login: " + 

                  authSession.getMessage());

    }

  }

}