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.cms.CmsException;
  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.Authentication;
  36 import org.springframework.security.core.context.SecurityContextHolder;
  37
  38 /** The site-related user menu */
  39 public class UserMenu extends Shell implements CmsStyles, CallbackHandler {
  40         private static final long serialVersionUID = -5788157651532106301L;
  41         private Text username, password;
  42
  43         public UserMenu(Control source) {
  44                 super(source.getDisplay(), SWT.NO_TRIM | SWT.BORDER | SWT.ON_TOP);
  45                 setData(RWT.CUSTOM_VARIANT, CMS_USER_MENU);
  46
  47                 Authentication authentication = SecurityContextHolder.getContext()
  48                                 .getAuthentication();
  49                 if (authentication == null)
  50                         throw new CmsException("No authentication available");
  51
  52                 String username = authentication.getName();
  53                 if (username.equals(KernelHeader.USERNAME_ANONYMOUS)) {
  54                         username = null;
  55                         anonymousUi();
  56                 } else {
  57                         userUi();
  58                 }
  59
  60                 pack();
  61                 layout();
  62                 setLocation(source.toDisplay(source.getSize().x - getSize().x,
  63                                 source.getSize().y));
  64
  65                 addShellListener(new ShellAdapter() {
  66                         private static final long serialVersionUID = 5178980294808435833L;
  67
  68                         @Override
  69                         public void shellDeactivated(ShellEvent e) {
  70                                 close();
  71                                 dispose();
  72                         }
  73                 });
  74                 open();
  75         }
  76
  77         protected void userUi() {
  78                 setLayout(CmsUtils.noSpaceGridLayout());
  79                 Composite c = new Composite(this, SWT.NONE);
  80                 c.setLayout(new GridLayout());
  81                 c.setLayoutData(CmsUtils.fillAll());
  82
  83                 // String username = SecurityContextHolder.getContext()
  84                 // .getAuthentication().getName();
  85                 //
  86                 // Label l = new Label(c, SWT.NONE);
  87                 // l.setData(RWT.CUSTOM_VARIANT, CMS_USER_MENU_ITEM);
  88                 // l.setData(RWT.MARKUP_ENABLED, true);
  89                 // l.setLayoutData(CmsUtils.fillWidth());
  90                 // l.setText("<b>" + username + "</b>");
  91
  92                 specificUserUi(c);
  93
  94                 Label l = new Label(c, SWT.NONE);
  95                 l.setData(RWT.CUSTOM_VARIANT, CMS_USER_MENU_ITEM);
  96                 l.setText(CmsMsg.logout.lead());
  97                 GridData lData = CmsUtils.fillWidth();
  98                 lData.widthHint = 120;
  99                 l.setLayoutData(lData);
 100
 101                 l.addMouseListener(new MouseAdapter() {
 102                         private static final long serialVersionUID = 6444395812777413116L;
 103
 104                         public void mouseDown(MouseEvent e) {
 105                                 logout();
 106                         }
 107                 });
 108         }
 109
 110         protected String getUsername() {
 111                 String username = SecurityContextHolder.getContext()
 112                                 .getAuthentication().getName();
 113                 return username;
 114         }
 115
 116         /** To be overridden */
 117         protected void specificUserUi(Composite parent) {
 118
 119         }
 120
 121         protected void anonymousUi() {
 122                 setLayout(CmsUtils.noSpaceGridLayout());
 123
 124                 // We need a composite for the traversal
 125                 Composite c = new Composite(this, SWT.NONE);
 126                 c.setLayout(new GridLayout());
 127                 c.setLayoutData(CmsUtils.fillAll());
 128
 129                 Integer textWidth = 120;
 130                 setData(RWT.CUSTOM_VARIANT, CMS_USER_MENU);
 131
 132                 // new Label(this, SWT.NONE).setText(CmsMsg.username.lead());
 133                 username = new Text(c, SWT.BORDER);
 134                 username.setMessage(CmsMsg.username.lead());
 135                 username.setData(RWT.CUSTOM_VARIANT, CMS_LOGIN_DIALOG_USERNAME);
 136                 GridData gd = CmsUtils.fillWidth();
 137                 gd.widthHint = textWidth;
 138                 username.setLayoutData(gd);
 139
 140                 // new Label(this, SWT.NONE).setText(CmsMsg.password.lead());
 141                 password = new Text(c, SWT.BORDER | SWT.PASSWORD);
 142                 password.setMessage(CmsMsg.password.lead());
 143                 password.setData(RWT.CUSTOM_VARIANT, CMS_LOGIN_DIALOG_PASSWORD);
 144                 gd = CmsUtils.fillWidth();
 145                 gd.widthHint = textWidth;
 146                 password.setLayoutData(gd);
 147
 148                 TraverseListener tl = new TraverseListener() {
 149                         private static final long serialVersionUID = -1158892811534971856L;
 150
 151                         public void keyTraversed(TraverseEvent e) {
 152                                 if (e.detail == SWT.TRAVERSE_RETURN)
 153                                         login();
 154                         }
 155                 };
 156                 c.addTraverseListener(tl);
 157                 username.addTraverseListener(tl);
 158                 password.addTraverseListener(tl);
 159                 setTabList(new Control[] { c });
 160                 c.setTabList(new Control[] { username, password });
 161                 c.setFocus();
 162         }
 163
 164         protected void login() {
 165                 CmsSession cmsSession = (CmsSession) getDisplay().getData(
 166                                 CmsSession.KEY);
 167                 Subject subject = cmsSession.getSubject();
 168                 try {
 169                         //
 170                         // LOGIN
 171                         //
 172                         new ArgeoLoginContext(KernelHeader.LOGIN_CONTEXT_ANONYMOUS, subject)
 173                                         .logout();
 174                         LoginContext loginContext = new ArgeoLoginContext(
 175                                         KernelHeader.LOGIN_CONTEXT_USER, subject, this);
 176                         loginContext.login();
 177                 } catch (LoginException e1) {
 178                         try {
 179                                 new ArgeoLoginContext(KernelHeader.LOGIN_CONTEXT_ANONYMOUS,
 180                                                 subject).login();
 181                         } catch (LoginException e) {
 182                                 throw new CmsException("Cannot authenticate anonymous", e1);
 183                         }
 184                         throw new CmsException("Cannot authenticate", e1);
 185                 }
 186                 close();
 187                 dispose();
 188                 cmsSession.authChange();
 189         }
 190
 191         protected void logout() {
 192                 final CmsSession cmsSession = (CmsSession) getDisplay().getData(
 193                                 CmsSession.KEY);
 194                 Subject subject = cmsSession.getSubject();
 195                 try {
 196                         //
 197                         // LOGOUT
 198                         //
 199                         new ArgeoLoginContext(KernelHeader.LOGIN_CONTEXT_USER, subject)
 200                                         .logout();
 201                         new ArgeoLoginContext(KernelHeader.LOGIN_CONTEXT_ANONYMOUS, subject)
 202                                         .login();
 203                 } catch (LoginException e1) {
 204                         throw new CmsException("Cannot authenticate anonymous", e1);
 205                 }
 206                 close();
 207                 dispose();
 208                 cmsSession.authChange();
 209         }
 210
 211         @Override
 212         public void handle(Callback[] callbacks) throws IOException,
 213                         UnsupportedCallbackException {
 214                 ((NameCallback) callbacks[0]).setName(username.getText());
 215                 ((PasswordCallback) callbacks[1]).setPassword(password.getTextChars());
 216         }
 217
 218 }