code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/server/Policy.java

   1 /*
   2  * Copyright 2009 Electronic Business Systems Ltd.
   3  *
   4  * This file is part of GSS.
   5  *
   6  * GSS is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GSS is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with GSS.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 package gr.ebs.gss.server;
  20
  21 import gr.ebs.gss.client.exceptions.ObjectNotFoundException;
  22 import gr.ebs.gss.client.exceptions.RpcException;
  23 import gr.ebs.gss.server.domain.User;
  24
  25 import java.io.IOException;
  26
  27 import javax.servlet.http.HttpServletRequest;
  28 import javax.servlet.http.HttpServletResponse;
  29
  30 import org.apache.commons.logging.Log;
  31 import org.apache.commons.logging.LogFactory;
  32
  33 /**
  34  * The servlet that handles user policy acceptance.
  35  *
  36  * @author past
  37  */
  38 public class Policy extends BaseServlet {
  39         /**
  40          * The request parameter name for the acceptance flag.
  41          */
  42         private static final String ACCEPT_PARAM = "accept";
  43
  44         /**
  45          * The request parameter name for the original query string to the jsp.
  46          */
  47         private static final String QUERY_PARAM = "queryString";
  48
  49         /**
  50          * The request parameter name for the username.
  51          */
  52         private static final String USER_PARAM = "user";
  53
  54         /**
  55          * The serial version UID of the class.
  56          */
  57         private static final long serialVersionUID = 1L;
  58
  59         /**
  60          * The logger.
  61          */
  62         private static Log logger = LogFactory.getLog(Policy.class);
  63
  64         @Override
  65         public void service(HttpServletRequest request, HttpServletResponse response) throws IOException {
  66                 String queryString = request.getParameter(QUERY_PARAM);
  67                 String accept = request.getParameter(ACCEPT_PARAM);
  68                 String username = request.getParameter(USER_PARAM);
  69                 response.setContentType("text/html");
  70                 if (username == null) {
  71                         response.sendError(HttpServletResponse.SC_NOT_FOUND);
  72                         return;
  73                 }
  74                 User user = null;
  75                 try {
  76                         user = getService().findUser(username);
  77                         if (user == null) {
  78                                 response.sendError(HttpServletResponse.SC_NOT_FOUND);
  79                                 return;
  80                         }
  81                         if ("on".equalsIgnoreCase(accept))
  82                                 user = getService().updateUserPolicyAcceptance(user.getId(), true);
  83                         response.sendRedirect(request.getContextPath()+ "/login?" + queryString);
  84                 } catch (RpcException e) {
  85                         String error = "An error occurred while communicating with the service";
  86                         logger.error(error, e);
  87                         response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, error);
  88                         return;
  89                 } catch (ObjectNotFoundException e) {
  90                         String error = "User " + username + " was not found";
  91                         logger.warn(error, e);
  92                         response.sendError(HttpServletResponse.SC_NOT_FOUND, error);
  93                         return;
  94                 }
  95         }
  96 }