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

   1 /*
   2  * Copyright 2010 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.server.ejb.TransactionHelper;
  22
  23 import java.io.IOException;
  24 import java.util.concurrent.Callable;
  25
  26 import javax.servlet.http.HttpServletRequest;
  27 import javax.servlet.http.HttpServletResponse;
  28
  29 /**
  30  * The servlet that handles user registration.
  31  *
  32  * @author past
  33  */
  34 public class CouponVerifier extends BaseServlet {
  35         /**
  36          * The request parameter name for the verification flag.
  37          */
  38         private static final String VERIFY_PARAM = "verify";
  39
  40         /**
  41          * The request parameter name for the coupon code.
  42          */
  43         private static final String CODE_PARAM = "code";
  44
  45         /**
  46          * The request parameter name for the firstname.
  47          */
  48         private static final String FIRSTNAME_PARAM = "firstname";
  49
  50         /**
  51          * The request parameter name for the lastname.
  52          */
  53         private static final String LASTNAME_PARAM = "lastname";
  54
  55         /**
  56          * The request parameter name for the username.
  57          */
  58         private static final String USERNAME_PARAM = "username";
  59
  60         /**
  61          * The request parameter name for the e-mail.
  62          */
  63         private static final String EMAIL_PARAM = "email";
  64
  65         /**
  66          * The serial version UID of the class.
  67          */
  68         private static final long serialVersionUID = 1L;
  69
  70         @Override
  71         public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
  72                 String firstname = request.getParameter(FIRSTNAME_PARAM);
  73                 String lastname = request.getParameter(LASTNAME_PARAM);
  74                 String email = request.getParameter(EMAIL_PARAM);
  75                 final String username = request.getParameter(USERNAME_PARAM);
  76                 final String code = request.getParameter(CODE_PARAM);
  77                 String verify = request.getParameter(VERIFY_PARAM);
  78                 response.setContentType("text/html");
  79
  80                 // Validate input parameters.
  81                 if (username == null || username.isEmpty()) {
  82                         handleException(response, "No username was specified");
  83                         return;
  84                 } else if (firstname == null || firstname.isEmpty()) {
  85                         handleException(response, "No firstname was specified");
  86                         return;
  87                 } else if (lastname == null || lastname.isEmpty()) {
  88                         handleException(response, "No lastname was specified");
  89                         return;
  90                 } else if (email == null || email.isEmpty()) {
  91                         handleException(response, "No email was specified");
  92                         return;
  93                 } else if (code == null || code.isEmpty()) {
  94                         handleException(response, "No code was specified");
  95                         return;
  96                 } else if (!"on".equalsIgnoreCase(verify)) {
  97                         String error = encode("You must verify that the coupon belongs to you");
  98                         String errorUrl = "couponSubmission.jsp?error=" + error;
  99                         errorUrl += "&username=" + username;
 100                         errorUrl += "&firstname=" + firstname;
 101                         errorUrl += "&lastname=" + lastname;
 102                         errorUrl += "&code=" + code;
 103                         errorUrl += "&email=" + email;
 104                         response.sendRedirect(errorUrl);
 105                         return;
 106                 }
 107
 108                 try {
 109                         new TransactionHelper<Void>().tryExecute(new Callable<Void>() {
 110                                 @Override
 111                                 public Void call() throws Exception {
 112                                         getService().upgradeUserClass(username, code);
 113                                         return null;
 114                                 }
 115
 116                         });
 117                         response.sendRedirect("couponSubmitted.jsp?newQuota=" + getService().getCouponUserClass().getQuotaAsString());
 118                 } catch (Exception e) {
 119                         handleException(response, e.getMessage());
 120                 }
 121         }
 122
 123         private void handleException(HttpServletResponse response, String error) throws IOException {
 124                 String errorUrl = "coupon.jsp?error=" + error;
 125                 response.sendRedirect(errorUrl);
 126         }
 127 }