code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/server/Registration.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 static gr.ebs.gss.server.configuration.GSSConfigurationFactory.getConfiguration;
  22 import gr.ebs.gss.client.exceptions.DuplicateNameException;
  23 import gr.ebs.gss.client.exceptions.ObjectNotFoundException;
  24 import gr.ebs.gss.client.exceptions.RpcException;
  25 import gr.ebs.gss.server.domain.User;
  26 import gr.ebs.gss.server.domain.dto.UserDTO;
  27 import gr.ebs.gss.server.ejb.ExternalAPI;
  28 import gr.ebs.gss.server.ejb.TransactionHelper;
  29
  30 import java.io.IOException;
  31 import java.net.URLEncoder;
  32 import java.util.concurrent.Callable;
  33
  34 import javax.naming.Context;
  35 import javax.naming.InitialContext;
  36 import javax.naming.NamingException;
  37 import javax.rmi.PortableRemoteObject;
  38 import javax.servlet.http.HttpServlet;
  39 import javax.servlet.http.HttpServletRequest;
  40 import javax.servlet.http.HttpServletResponse;
  41
  42 import org.apache.commons.logging.Log;
  43 import org.apache.commons.logging.LogFactory;
  44
  45 /**
  46  * The servlet that handles user registration.
  47  *
  48  * @author past
  49  */
  50 public class Registration extends HttpServlet {
  51         /**
  52          * The request parameter name for the acceptance flag.
  53          */
  54         private static final String ACCEPT_PARAM = "accept";
  55
  56         /**
  57          * The request parameter name for the firstname.
  58          */
  59         private static final String FIRSTNAME_PARAM = "firstname";
  60
  61         /**
  62          * The request parameter name for the lastname.
  63          */
  64         private static final String LASTNAME_PARAM = "lastname";
  65
  66         /**
  67          * The request parameter name for the username.
  68          */
  69         private static final String USERNAME_PARAM = "username";
  70
  71         /**
  72          * The request parameter name for the e-mail.
  73          */
  74         private static final String EMAIL_PARAM = "email";
  75
  76         /**
  77          * The request parameter name for the password.
  78          */
  79         private static final String PASSWORD_PARAM = "password";
  80
  81         /**
  82          * The request parameter name for the password confirmation.
  83          */
  84         private static final String PASSWORD2_PARAM = "password2";
  85
  86         /**
  87          * The serial version UID of the class.
  88          */
  89         private static final long serialVersionUID = 1L;
  90
  91         /**
  92          * The logger.
  93          */
  94         private static Log logger = LogFactory.getLog(Registration.class);
  95
  96         /**
  97          * A helper method that retrieves a reference to the ExternalAPI bean and
  98          * stores it for future use.
  99          *
 100          * @return an ExternalAPI instance
 101          * @throws RpcException in case an error occurs
 102          */
 103         private ExternalAPI getService() throws RpcException {
 104                 try {
 105                         final Context ctx = new InitialContext();
 106                         final Object ref = ctx.lookup(getConfiguration().getString("externalApiPath"));
 107                         return (ExternalAPI) PortableRemoteObject.narrow(ref, ExternalAPI.class);
 108                 } catch (final NamingException e) {
 109                         logger.error("Unable to retrieve the ExternalAPI EJB", e);
 110                         throw new RpcException("An error occurred while contacting the naming service");
 111                 }
 112         }
 113
 114         @Override
 115         public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
 116                 if (getConfiguration().getBoolean("onlyRegisterWithCode"))
 117                         response.sendRedirect("invites.jsp");
 118                 else
 119                         response.sendRedirect("register.jsp");
 120         }
 121
 122         @Override
 123         public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
 124                 final String firstname = request.getParameter(FIRSTNAME_PARAM);
 125                 final String lastname = request.getParameter(LASTNAME_PARAM);
 126                 final String email = request.getParameter(EMAIL_PARAM);
 127                 final String username = request.getParameter(USERNAME_PARAM);
 128                 String password = request.getParameter(PASSWORD_PARAM);
 129                 String password2 = request.getParameter(PASSWORD2_PARAM);
 130                 String accept = request.getParameter(ACCEPT_PARAM);
 131                 response.setContentType("text/html");
 132
 133                 // Validate input parameters.
 134                 if (username == null || username.isEmpty()) {
 135                         String error = URLEncoder.encode("No username was specified", "UTF-8");
 136                         String errorUrl = "register.jsp?username=&error=" + error;
 137                         errorUrl += "&firstname=" + (firstname == null? "": firstname);
 138                         errorUrl += "&lastname=" + (lastname == null? "": lastname);
 139                         errorUrl += "&email=" + (email == null? "": email);
 140                         response.sendRedirect(errorUrl);
 141                         return;
 142                 } else if (firstname == null || firstname.isEmpty()) {
 143                         String error = URLEncoder.encode("No firstname was specified", "UTF-8");
 144                         String errorUrl = "register.jsp?firstname=&error=" + error;
 145                         errorUrl += "&username=" + username;
 146                         errorUrl += "&lastname=" + (lastname == null? "": lastname);
 147                         errorUrl += "&email=" + (email == null? "": email);
 148                         response.sendRedirect(errorUrl);
 149                         return;
 150                 } else if (lastname == null || lastname.isEmpty()) {
 151                         String error = URLEncoder.encode("No lastname was specified", "UTF-8");
 152                         String errorUrl = "register.jsp?lastname=&error=" + error;
 153                         errorUrl += "&username=" + username;
 154                         errorUrl += "&firstname=" + firstname;
 155                         errorUrl += "&email=" + (email == null? "": email);
 156                         response.sendRedirect(errorUrl);
 157                         return;
 158                 } else if (email == null || email.isEmpty()) {
 159                         String error = URLEncoder.encode("No e-mail was specified", "UTF-8");
 160                         String errorUrl = "register.jsp?email=&error=" + error;
 161                         errorUrl += "&username=" + username;
 162                         errorUrl += "&firstname=" + firstname;
 163                         errorUrl += "&lastname=" + lastname;
 164                         response.sendRedirect(errorUrl);
 165                         return;
 166                 } else if (password == null || password.isEmpty()) {
 167                         String error = URLEncoder.encode("No password was specified", "UTF-8");
 168                         String errorUrl = "register.jsp?error=" + error;
 169                         errorUrl += "&username=" + username;
 170                         errorUrl += "&firstname=" + firstname;
 171                         errorUrl += "&lastname=" + lastname;
 172                         errorUrl += "&email=" + email;
 173                         response.sendRedirect(errorUrl);
 174                         return;
 175                 } else if (!password.equals(password2)) {
 176                         String error = URLEncoder.encode("Passwords do not match", "UTF-8");
 177                         String errorUrl = "register.jsp?error=" + error;
 178                         errorUrl += "&username=" + username;
 179                         errorUrl += "&firstname=" + firstname;
 180                         errorUrl += "&lastname=" + lastname;
 181                         errorUrl += "&email=" + email;
 182                         response.sendRedirect(errorUrl);
 183                         return;
 184                 } else if (!"on".equalsIgnoreCase(accept)) {
 185                         String error = URLEncoder.encode("You must accept the terms and conditions", "UTF-8");
 186                         String errorUrl = "register.jsp?error=" + error;
 187                         errorUrl += "&username=" + username;
 188                         errorUrl += "&firstname=" + firstname;
 189                         errorUrl += "&lastname=" + lastname;
 190                         errorUrl += "&email=" + email;
 191                         response.sendRedirect(errorUrl);
 192                         return;
 193                 }
 194
 195                 User user = null;
 196                 try {
 197                         user = getService().findUser(username);
 198                         if (user != null) {
 199                                 String error = URLEncoder.encode("The username already exists", "UTF-8");
 200                                 String errorUrl = "register.jsp?username=&error=" + error;
 201                                 errorUrl += "&firstname=" + firstname;
 202                                 errorUrl += "&lastname=" + lastname;
 203                                 errorUrl += "&email=" + email;
 204                                 response.sendRedirect(errorUrl);
 205                                 return;
 206                         }
 207                         try {
 208                                 getService().createLdapUser(username, firstname, lastname, email, password);
 209                         } catch (Exception e) {
 210                                 logger.error(e);
 211                                 response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage());
 212                                 return;
 213                         }
 214                         final UserDTO userDto = new TransactionHelper<UserDTO>().tryExecute(new Callable<UserDTO>() {
 215                                 @Override
 216                                 public UserDTO call() throws Exception {
 217                                         return getService().createUser(username, firstname + " " + lastname, email, "", "").getDTO();
 218                                 }
 219
 220                         });
 221                         new TransactionHelper<Void>().tryExecute(new Callable<Void>() {
 222                                 @Override
 223                                 public Void call() throws Exception {
 224                                         getService().updateUserPolicyAcceptance(userDto.getId(), true);
 225                                         return null;
 226                                 }
 227
 228                         });
 229                         response.sendRedirect("registered.jsp");
 230                 } catch (RpcException e) {
 231                         String error = "An error occurred while communicating with the service";
 232                         logger.error(error, e);
 233                         response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, error);
 234                 } catch (DuplicateNameException e) {
 235                         // Can't happen, but this is more user-friendly than an assert.
 236                         String error = URLEncoder.encode("The username already exists", "UTF-8");
 237                         String errorUrl = "register.jsp?username=&firstname=&lastname=&email=&error=" + error;
 238                         response.sendRedirect(errorUrl);
 239                 } catch (ObjectNotFoundException e) {
 240                         // Can't happen, but this is more user-friendly than an assert.
 241                         String error = URLEncoder.encode("No username or name was specified", "UTF-8");
 242                         String errorUrl = "register.jsp?username=&firstname=&lastname=&email=&error=" + error;
 243                         response.sendRedirect(errorUrl);
 244                 } catch (Exception e) {
 245                         logger.error(e);
 246                         response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage());
 247                 }
 248         }
 249 }