Workspace/Siman/src/org/splat/simer/ConnectionAction.java

   1 package org.splat.simer;
   2
   3 import java.util.Map;
   4 import java.util.Set;
   5
   6 import javax.security.auth.login.LoginContext;
   7 import javax.security.auth.Subject;
   8 import javax.security.auth.callback.*;
   9
  10 import org.splat.dal.bo.kernel.User;
  11 import org.splat.som.ApplicationRights;
  12
  13 import java.io.IOException;
  14 import javax.security.auth.login.FailedLoginException;
  15
  16 public class ConnectionAction extends Action {
  17
  18         private String username = null;
  19         private String password = null;
  20         private String backmenu = null;
  21
  22         /**
  23          * Serial version ID.
  24          */
  25         private static final long serialVersionUID = 6095471616361606231L;
  26
  27         private class Handler implements CallbackHandler {
  28                 // ------------------------------------------------
  29                 public void handle(Callback[] callbacks) throws IOException,
  30                                 UnsupportedCallbackException {
  31                         for (int i = 0; i < callbacks.length; i++) {
  32                                 if (callbacks[i] instanceof TextOutputCallback) {
  33                                         // Display a message according to a specified type
  34
  35                                 } else if (callbacks[i] instanceof NameCallback) {
  36                                         // Get the username
  37                                         NameCallback call = (NameCallback) callbacks[i];
  38                                         call.setName(username);
  39
  40                                 } else if (callbacks[i] instanceof PasswordCallback) {
  41                                         // Get the password
  42                                         if (password != null) {
  43                                                 PasswordCallback call = (PasswordCallback) callbacks[i];
  44                                                 call.setPassword(password.toCharArray());
  45                                         }
  46                                 } else {
  47                                         throw new UnsupportedCallbackException(callbacks[i],
  48                                                         "Unrecognized Callback");
  49                                 }
  50                         }
  51                 }
  52         }
  53
  54         // ==============================================================================================================================
  55         // Action execution
  56         // ==============================================================================================================================
  57
  58         @SuppressWarnings("unchecked")
  59         public String doLogin() throws Exception {
  60                 // ------------------------
  61                 if (username == null || username.length() == 0)
  62                         return INPUT;
  63                 if (password != null && password.length() == 0)
  64                         password = null; // User having no password
  65                 try {
  66                         LoginContext context = new LoginContext("Simer", new Handler());
  67                         context.login();
  68
  69                         Subject identity = context.getSubject();
  70                         Set<User> table = identity.getPrincipals(User.class);
  71                         if (table.isEmpty())
  72                                 throw new Exception();
  73
  74                         User user = table.iterator().next(); // The user is (apparently...) the 1st principal
  75                         ApplicationRights logged = new ApplicationRights(user);
  76                         if (logged.canContributeToStudy() || logged.canValidate()) {
  77                                 // TODO: Set the search filter according to user preferences
  78                                 Map<String, Object> session = getSession();
  79                                 // Map<String,Object> kfilter = (Map<String, Object>)session.get("knowledge.filter");
  80                                 Map<String, Object> sfilter = (Map<String, Object>) session
  81                                                 .get("study.filter");
  82
  83                                 sfilter.put("state", "ANY");
  84                                 sfilter.put("visibility", "PRIVATE");
  85                                 if (logged.canCreateStudy())
  86                                         sfilter.put("author", String.valueOf(user.getIndex()));
  87                         }
  88                         this.connect(context, user); // Updates the session context
  89                         return backmenu;
  90                 } catch (FailedLoginException error) {
  91                         setErrorCode("message.error.login." + error.getMessage());
  92                         return INPUT;
  93                 } catch (Exception error) {
  94                         logger.error("Reason:", error);
  95                         return ERROR;
  96                 }
  97         }
  98
  99         @SuppressWarnings("unchecked")
 100         public String doLogout() {
 101                 // -------------------------
 102                 try {
 103                         Map<String, Object> session = getSession();
 104                         // Map<String,Object> kfilter = (Map<String, Object>)session.get("knowledge.filter");
 105                         Map<String, Object> sfilter = (Map<String, Object>) session
 106                                         .get("study.filter");
 107                         LoginContext context = (LoginContext) session.get("login.context");
 108
 109                         logger.info("Deconnection of " + getConnectedUser().toString()
 110                                         + ".");
 111                         context.logout();
 112
 113                         // TODO: ProjectSettings.deleteDownloadDirectory(user);
 114                         sfilter.put("state", "ANY");
 115                         sfilter.put("author", "0");
 116
 117                         this.disconnect(); // Updates the session context
 118                         return backmenu;
 119                 } catch (Exception error) {
 120                         logger.error("Reason:", error);
 121                         return ERROR;
 122                 }
 123         }
 124
 125         // ==============================================================================================================================
 126         // Getters and setters
 127         // ==============================================================================================================================
 128
 129         public String getUsername() {
 130                 // ----------------------------
 131                 return username;
 132         }
 133
 134         public String getPassword() {
 135                 // ----------------------------
 136                 return password;
 137         }
 138
 139         public void setUsername(String value) {
 140                 // --------------------------------------
 141                 this.username = value;
 142         }
 143
 144         public void setPassword(String value) {
 145                 // --------------------------------------
 146                 this.password = value;
 147         }
 148
 149         public void setBackMenu(String menu) {
 150                 // -------------------------------------
 151                 this.backmenu = menu;
 152         }
 153 }