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.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(new GridLayout());
  79
  80                 String username = SecurityContextHolder.getContext()
  81                                 .getAuthentication().getName();
  82
  83                 Label l = new Label(this, SWT.NONE);
  84                 l.setData(RWT.CUSTOM_VARIANT, CMS_USER_MENU_ITEM);
  85                 l.setData(RWT.MARKUP_ENABLED, true);
  86                 l.setLayoutData(CmsUtils.fillWidth());
  87                 l.setText("<b>" + username + "</b>");
  88
  89                 specificUserUi(this);
  90
  91                 l = new Label(this, SWT.NONE);
  92                 l.setData(RWT.CUSTOM_VARIANT, CMS_USER_MENU_ITEM);
  93                 l.setText(CmsMsg.logout.lead());
  94                 GridData lData = CmsUtils.fillWidth();
  95                 lData.widthHint = 120;
  96                 l.setLayoutData(lData);
  97
  98                 l.addMouseListener(new MouseAdapter() {
  99                         private static final long serialVersionUID = 6444395812777413116L;
 100
 101                         public void mouseDown(MouseEvent e) {
 102                                 logout();
 103                         }
 104                 });
 105         }
 106
 107         protected String getUsername() {
 108                 String username = SecurityContextHolder.getContext()
 109                                 .getAuthentication().getName();
 110                 return username;
 111         }
 112
 113         /** To be overridden */
 114         protected void specificUserUi(Composite parent) {
 115
 116         }
 117
 118         protected void anonymousUi() {
 119                 Integer textWidth = 150;
 120                 setData(RWT.CUSTOM_VARIANT, CMS_USER_MENU);
 121                 setLayout(new GridLayout(2, false));
 122
 123                 new Label(this, SWT.NONE).setText(CmsMsg.username.lead());
 124                 username = new Text(this, SWT.BORDER);
 125                 username.setData(RWT.CUSTOM_VARIANT, CMS_LOGIN_DIALOG_USERNAME);
 126                 GridData gd = CmsUtils.fillWidth();
 127                 gd.widthHint = textWidth;
 128                 username.setLayoutData(gd);
 129
 130                 new Label(this, SWT.NONE).setText(CmsMsg.password.lead());
 131                 password = new Text(this, SWT.BORDER | SWT.PASSWORD);
 132                 password.setData(RWT.CUSTOM_VARIANT, CMS_LOGIN_DIALOG_PASSWORD);
 133                 gd = CmsUtils.fillWidth();
 134                 gd.widthHint = textWidth;
 135                 password.setLayoutData(gd);
 136
 137                 TraverseListener tl = new TraverseListener() {
 138                         private static final long serialVersionUID = -1158892811534971856L;
 139
 140                         public void keyTraversed(TraverseEvent e) {
 141                                 if (e.detail == SWT.TRAVERSE_RETURN)
 142                                         login();
 143                         }
 144                 };
 145                 username.addTraverseListener(tl);
 146                 password.addTraverseListener(tl);
 147         }
 148
 149         protected void login() {
 150                 CmsSession cmsSession = (CmsSession) getDisplay().getData(
 151                                 CmsSession.KEY);
 152                 Subject subject = cmsSession.getSubject();
 153                 try {
 154                         //
 155                         // LOGIN
 156                         //
 157                         new ArgeoLoginContext(KernelHeader.LOGIN_CONTEXT_ANONYMOUS, subject)
 158                                         .logout();
 159                         LoginContext loginContext = new ArgeoLoginContext(
 160                                         KernelHeader.LOGIN_CONTEXT_USER, subject, this);
 161                         loginContext.login();
 162                 } catch (LoginException e1) {
 163                         try {
 164                                 new ArgeoLoginContext(KernelHeader.LOGIN_CONTEXT_ANONYMOUS,
 165                                                 subject).login();
 166                         } catch (LoginException e) {
 167                                 throw new CmsException("Cannot authenticate anonymous", e1);
 168                         }
 169                         throw new CmsException("Cannot authenticate", e1);
 170                 }
 171                 close();
 172                 dispose();
 173                 cmsSession.authChange();
 174         }
 175
 176         protected void logout() {
 177                 final CmsSession cmsSession = (CmsSession) getDisplay().getData(
 178                                 CmsSession.KEY);
 179                 Subject subject = cmsSession.getSubject();
 180                 try {
 181                         //
 182                         // LOGOUT
 183                         //
 184                         new ArgeoLoginContext(KernelHeader.LOGIN_CONTEXT_USER, subject)
 185                                         .logout();
 186                         new ArgeoLoginContext(KernelHeader.LOGIN_CONTEXT_ANONYMOUS, subject)
 187                                         .login();
 188                 } catch (LoginException e1) {
 189                         throw new CmsException("Cannot authenticate anonymous", e1);
 190                 }
 191                 close();
 192                 dispose();
 193                 cmsSession.authChange();
 194         }
 195
 196         @Override
 197         public void handle(Callback[] callbacks) throws IOException,
 198                         UnsupportedCallbackException {
 199                 ((NameCallback) callbacks[0]).setName(username.getText());
 200                 ((PasswordCallback) callbacks[1]).setPassword(password.getTextChars());
 201         }
 202
 203 }