org.argeo.cms/src/org/argeo/cms/util/UserMenu.java

   1 package org.argeo.cms.util;
   2
   3 import java.io.IOException;
   4
   5 import javax.security.auth.Subject;
   6 import javax.security.auth.callback.Callback;
   7 import javax.security.auth.callback.CallbackHandler;
   8 import javax.security.auth.callback.NameCallback;
   9 import javax.security.auth.callback.PasswordCallback;
  10 import javax.security.auth.callback.UnsupportedCallbackException;
  11 import javax.security.auth.login.LoginContext;
  12 import javax.security.auth.login.LoginException;
  13
  14 import org.argeo.ArgeoException;
  15 import org.argeo.cms.CmsMsg;
  16 import org.argeo.cms.CmsSession;
  17 import org.argeo.cms.CmsStyles;
  18 import org.argeo.cms.KernelHeader;
  19 import org.argeo.cms.auth.ArgeoLoginContext;
  20 import org.eclipse.rap.rwt.RWT;
  21 import org.eclipse.swt.SWT;
  22 import org.eclipse.swt.events.MouseAdapter;
  23 import org.eclipse.swt.events.MouseEvent;
  24 import org.eclipse.swt.events.ShellAdapter;
  25 import org.eclipse.swt.events.ShellEvent;
  26 import org.eclipse.swt.events.TraverseEvent;
  27 import org.eclipse.swt.events.TraverseListener;
  28 import org.eclipse.swt.layout.GridData;
  29 import org.eclipse.swt.layout.GridLayout;
  30 import org.eclipse.swt.widgets.Composite;
  31 import org.eclipse.swt.widgets.Control;
  32 import org.eclipse.swt.widgets.Label;
  33 import org.eclipse.swt.widgets.Shell;
  34 import org.eclipse.swt.widgets.Text;
  35 import org.springframework.security.core.context.SecurityContextHolder;
  36
  37 /** The site-related user menu */
  38 public class UserMenu extends Shell implements CmsStyles, CallbackHandler {
  39         private static final long serialVersionUID = -5788157651532106301L;
  40         private Text username, password;
  41
  42         public UserMenu(Control source) {
  43                 super(source.getDisplay(), SWT.NO_TRIM | SWT.BORDER | SWT.ON_TOP);
  44                 setData(RWT.CUSTOM_VARIANT, CMS_USER_MENU);
  45
  46                 String username = SecurityContextHolder.getContext()
  47                                 .getAuthentication().getName();
  48                 if (username.equals("anonymous")) {
  49                         username = null;
  50                         anonymousUi();
  51                 } else {
  52                         userUi();
  53                 }
  54
  55                 pack();
  56                 layout();
  57                 setLocation(source.toDisplay(source.getSize().x - getSize().x,
  58                                 source.getSize().y));
  59
  60                 addShellListener(new ShellAdapter() {
  61                         private static final long serialVersionUID = 5178980294808435833L;
  62
  63                         @Override
  64                         public void shellDeactivated(ShellEvent e) {
  65                                 close();
  66                                 dispose();
  67                         }
  68                 });
  69                 open();
  70         }
  71
  72         protected void userUi() {
  73                 setLayout(new GridLayout());
  74
  75                 String username = SecurityContextHolder.getContext()
  76                                 .getAuthentication().getName();
  77
  78                 Label l = new Label(this, SWT.NONE);
  79                 l.setData(RWT.CUSTOM_VARIANT, CMS_USER_MENU_ITEM);
  80                 l.setData(RWT.MARKUP_ENABLED, true);
  81                 l.setLayoutData(CmsUtils.fillWidth());
  82                 l.setText("<b>" + username + "</b>");
  83
  84                 specificUserUi(this);
  85
  86                 l = new Label(this, SWT.NONE);
  87                 l.setData(RWT.CUSTOM_VARIANT, CMS_USER_MENU_ITEM);
  88                 l.setText(CmsMsg.logout.lead());
  89                 GridData lData = CmsUtils.fillWidth();
  90                 lData.widthHint = 120;
  91                 l.setLayoutData(lData);
  92
  93                 l.addMouseListener(new MouseAdapter() {
  94                         private static final long serialVersionUID = 6444395812777413116L;
  95
  96                         public void mouseDown(MouseEvent e) {
  97                                 logout();
  98                         }
  99                 });
 100         }
 101
 102         protected String getUsername() {
 103                 String username = SecurityContextHolder.getContext()
 104                                 .getAuthentication().getName();
 105                 return username;
 106         }
 107
 108         /** To be overridden */
 109         protected void specificUserUi(Composite parent) {
 110
 111         }
 112
 113         protected void anonymousUi() {
 114                 Integer textWidth = 150;
 115                 setData(RWT.CUSTOM_VARIANT, CMS_USER_MENU);
 116                 setLayout(new GridLayout(2, false));
 117
 118                 new Label(this, SWT.NONE).setText(CmsMsg.username.lead());
 119                 username = new Text(this, SWT.BORDER);
 120                 username.setData(RWT.CUSTOM_VARIANT, CMS_LOGIN_DIALOG_USERNAME);
 121                 GridData gd = CmsUtils.fillWidth();
 122                 gd.widthHint = textWidth;
 123                 username.setLayoutData(gd);
 124
 125                 new Label(this, SWT.NONE).setText(CmsMsg.password.lead());
 126                 password = new Text(this, SWT.BORDER | SWT.PASSWORD);
 127                 password.setData(RWT.CUSTOM_VARIANT, CMS_LOGIN_DIALOG_PASSWORD);
 128                 gd = CmsUtils.fillWidth();
 129                 gd.widthHint = textWidth;
 130                 password.setLayoutData(gd);
 131
 132                 TraverseListener tl = new TraverseListener() {
 133                         private static final long serialVersionUID = -1158892811534971856L;
 134
 135                         public void keyTraversed(TraverseEvent e) {
 136                                 if (e.detail == SWT.TRAVERSE_RETURN)
 137                                         login();
 138                         }
 139                 };
 140                 username.addTraverseListener(tl);
 141                 password.addTraverseListener(tl);
 142         }
 143
 144         protected void login() {
 145                 CmsSession cmsSession = (CmsSession) getDisplay().getData(
 146                                 CmsSession.KEY);
 147                 Subject subject = cmsSession.getSubject();
 148                 try {
 149                         //
 150                         // LOGIN
 151                         //
 152                         new ArgeoLoginContext(KernelHeader.LOGIN_CONTEXT_ANONYMOUS, subject)
 153                                         .logout();
 154                         LoginContext loginContext = new ArgeoLoginContext(
 155                                         KernelHeader.LOGIN_CONTEXT_USER, subject, this);
 156                         loginContext.login();
 157                 } catch (LoginException e1) {
 158                         throw new ArgeoException("Cannot authenticate anonymous", e1);
 159                 }
 160                 close();
 161                 dispose();
 162                 cmsSession.authChange();
 163         }
 164
 165         protected void logout() {
 166                 final CmsSession cmsSession = (CmsSession) getDisplay().getData(
 167                                 CmsSession.KEY);
 168                 Subject subject = cmsSession.getSubject();
 169                 try {
 170                         //
 171                         // LOGOUT
 172                         //
 173                         new ArgeoLoginContext(KernelHeader.LOGIN_CONTEXT_USER, subject)
 174                                         .logout();
 175                         new ArgeoLoginContext(KernelHeader.LOGIN_CONTEXT_ANONYMOUS, subject)
 176                                         .login();
 177                 } catch (LoginException e1) {
 178                         throw new ArgeoException("Cannot authenticate anonymous", e1);
 179                 }
 180                 close();
 181                 dispose();
 182                 cmsSession.authChange();
 183         }
 184
 185         @Override
 186         public void handle(Callback[] callbacks) throws IOException,
 187                         UnsupportedCallbackException {
 188                 ((NameCallback) callbacks[0]).setName(username.getText());
 189                 ((PasswordCallback) callbacks[1]).setPassword(password.getTextChars());
 190         }
 191
 192 }