org.argeo.cms.ui/src/org/argeo/cms/widgets/auth/CmsLogin.java

   1 package org.argeo.cms.widgets.auth;
   2
   3 import static org.argeo.cms.CmsMsg.password;
   4 import static org.argeo.cms.CmsMsg.username;
   5
   6 import java.io.IOException;
   7 import java.util.List;
   8 import java.util.Locale;
   9
  10 import javax.security.auth.callback.Callback;
  11 import javax.security.auth.callback.CallbackHandler;
  12 import javax.security.auth.callback.LanguageCallback;
  13 import javax.security.auth.callback.NameCallback;
  14 import javax.security.auth.callback.PasswordCallback;
  15 import javax.security.auth.callback.UnsupportedCallbackException;
  16 import javax.security.auth.login.FailedLoginException;
  17 import javax.security.auth.login.LoginContext;
  18 import javax.security.auth.login.LoginException;
  19
  20 import org.apache.commons.logging.Log;
  21 import org.apache.commons.logging.LogFactory;
  22 import org.argeo.cms.CmsMsg;
  23 import org.argeo.cms.auth.CurrentUser;
  24 import org.argeo.cms.auth.HttpRequestCallback;
  25 import org.argeo.cms.i18n.LocaleUtils;
  26 import org.argeo.cms.ui.CmsStyles;
  27 import org.argeo.cms.ui.CmsView;
  28 import org.argeo.cms.ui.internal.Activator;
  29 import org.argeo.cms.util.CmsUtils;
  30 import org.argeo.eclipse.ui.specific.UiContext;
  31 import org.argeo.node.NodeConstants;
  32 import org.eclipse.swt.SWT;
  33 import org.eclipse.swt.events.MouseAdapter;
  34 import org.eclipse.swt.events.MouseEvent;
  35 import org.eclipse.swt.events.SelectionAdapter;
  36 import org.eclipse.swt.events.SelectionEvent;
  37 import org.eclipse.swt.events.SelectionListener;
  38 import org.eclipse.swt.events.TraverseEvent;
  39 import org.eclipse.swt.events.TraverseListener;
  40 import org.eclipse.swt.layout.GridData;
  41 import org.eclipse.swt.layout.GridLayout;
  42 import org.eclipse.swt.widgets.Button;
  43 import org.eclipse.swt.widgets.Composite;
  44 import org.eclipse.swt.widgets.Control;
  45 import org.eclipse.swt.widgets.Label;
  46 import org.eclipse.swt.widgets.Shell;
  47 import org.eclipse.swt.widgets.Text;
  48
  49 public class CmsLogin implements CmsStyles, CallbackHandler {
  50         private final static Log log = LogFactory.getLog(CmsLogin.class);
  51
  52         private Composite parent;
  53         private Text usernameT, passwordT;
  54         private Composite credentialsBlock;
  55         private final SelectionListener loginSelectionListener;
  56
  57         private final Locale defaultLocale;
  58         private LocaleChoice localeChoice = null;
  59
  60         private final CmsView cmsView;
  61
  62         public CmsLogin(CmsView cmsView) {
  63                 this.cmsView = cmsView;
  64                 defaultLocale = Activator.getNodeState().getDefaultLocale();
  65                 List<Locale> locales = Activator.getNodeState().getLocales();
  66                 if (locales != null)
  67                         localeChoice = new LocaleChoice(locales, defaultLocale);
  68                 loginSelectionListener = new SelectionListener() {
  69                         private static final long serialVersionUID = -8832133363830973578L;
  70
  71                         @Override
  72                         public void widgetSelected(SelectionEvent e) {
  73                                 login();
  74                         }
  75
  76                         @Override
  77                         public void widgetDefaultSelected(SelectionEvent e) {
  78                         }
  79                 };
  80         }
  81
  82         protected boolean isAnonymous() {
  83                 return CurrentUser.isAnonymous(cmsView.getLoginContext().getSubject());
  84         }
  85
  86         public final void createUi(Composite parent) {
  87                 this.parent = parent;
  88                 createContents(parent);
  89         }
  90
  91         protected void createContents(Composite parent) {
  92                 defaultCreateContents(parent);
  93         }
  94
  95         public final void defaultCreateContents(Composite parent) {
  96                 parent.setLayout(CmsUtils.noSpaceGridLayout());
  97                 Composite credentialsBlock = createCredentialsBlock(parent);
  98                 if (parent instanceof Shell) {
  99                         credentialsBlock.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, true, true));
 100                 }
 101         }
 102
 103         public final Composite createCredentialsBlock(Composite parent) {
 104                 if (isAnonymous()) {
 105                         return anonymousUi(parent);
 106                 } else {
 107                         return userUi(parent);
 108                 }
 109         }
 110
 111         protected Composite getCredentialsBlock() {
 112                 return credentialsBlock;
 113         }
 114
 115         protected Composite userUi(Composite parent) {
 116                 Locale locale = localeChoice == null ? this.defaultLocale : localeChoice.getSelectedLocale();
 117                 credentialsBlock = new Composite(parent, SWT.NONE);
 118                 credentialsBlock.setLayout(new GridLayout());
 119                 credentialsBlock.setLayoutData(CmsUtils.fillAll());
 120
 121                 specificUserUi(credentialsBlock);
 122
 123                 Label l = new Label(credentialsBlock, SWT.NONE);
 124                 CmsUtils.style(l, CMS_USER_MENU_ITEM);
 125                 l.setText(CmsMsg.logout.lead(locale));
 126                 GridData lData = CmsUtils.fillWidth();
 127                 lData.widthHint = 120;
 128                 l.setLayoutData(lData);
 129
 130                 l.addMouseListener(new MouseAdapter() {
 131                         private static final long serialVersionUID = 6444395812777413116L;
 132
 133                         public void mouseDown(MouseEvent e) {
 134                                 logout();
 135                         }
 136                 });
 137                 return credentialsBlock;
 138         }
 139
 140         /** To be overridden */
 141         protected void specificUserUi(Composite parent) {
 142
 143         }
 144
 145         protected Composite anonymousUi(Composite parent) {
 146                 Locale locale = localeChoice == null ? this.defaultLocale : localeChoice.getSelectedLocale();
 147                 // We need a composite for the traversal
 148                 credentialsBlock = new Composite(parent, SWT.NONE);
 149                 credentialsBlock.setLayout(new GridLayout());
 150                 credentialsBlock.setLayoutData(CmsUtils.fillAll());
 151
 152                 Integer textWidth = 120;
 153                 CmsUtils.style(parent, CMS_USER_MENU);
 154
 155                 // new Label(this, SWT.NONE).setText(CmsMsg.username.lead());
 156                 usernameT = new Text(credentialsBlock, SWT.BORDER);
 157                 usernameT.setMessage(username.lead(locale));
 158                 CmsUtils.style(usernameT, CMS_LOGIN_DIALOG_USERNAME);
 159                 GridData gd = CmsUtils.fillWidth();
 160                 gd.widthHint = textWidth;
 161                 usernameT.setLayoutData(gd);
 162
 163                 // new Label(this, SWT.NONE).setText(CmsMsg.password.lead());
 164                 passwordT = new Text(credentialsBlock, SWT.BORDER | SWT.PASSWORD);
 165                 passwordT.setMessage(password.lead(locale));
 166                 CmsUtils.style(passwordT, CMS_LOGIN_DIALOG_PASSWORD);
 167                 gd = CmsUtils.fillWidth();
 168                 gd.widthHint = textWidth;
 169                 passwordT.setLayoutData(gd);
 170
 171                 TraverseListener tl = new TraverseListener() {
 172                         private static final long serialVersionUID = -1158892811534971856L;
 173
 174                         public void keyTraversed(TraverseEvent e) {
 175                                 if (e.detail == SWT.TRAVERSE_RETURN)
 176                                         login();
 177                         }
 178                 };
 179                 credentialsBlock.addTraverseListener(tl);
 180                 usernameT.addTraverseListener(tl);
 181                 passwordT.addTraverseListener(tl);
 182                 parent.setTabList(new Control[] { credentialsBlock });
 183                 credentialsBlock.setTabList(new Control[] { usernameT, passwordT });
 184                 // credentialsBlock.setFocus();
 185
 186                 extendsCredentialsBlock(credentialsBlock, locale, loginSelectionListener);
 187                 if (localeChoice != null)
 188                         createLocalesBlock(credentialsBlock);
 189                 return credentialsBlock;
 190         }
 191
 192         /**
 193          * To be overridden in order to provide custome login button and other
 194          * links.
 195          */
 196         protected void extendsCredentialsBlock(Composite credentialsBlock, Locale selectedLocale,
 197                         SelectionListener loginSelectionListener) {
 198
 199         }
 200
 201         protected void updateLocale(Locale selectedLocale) {
 202                 // save already entered values
 203                 String usernameStr = usernameT.getText();
 204                 char[] pwd = passwordT.getTextChars();
 205
 206                 for (Control child : parent.getChildren())
 207                         child.dispose();
 208                 createContents(parent);
 209                 if (parent.getParent() != null)
 210                         parent.getParent().layout();
 211                 else
 212                         parent.layout();
 213                 usernameT.setText(usernameStr);
 214                 passwordT.setTextChars(pwd);
 215         }
 216
 217         protected Composite createLocalesBlock(final Composite parent) {
 218                 Composite c = new Composite(parent, SWT.NONE);
 219                 c.setLayout(CmsUtils.noSpaceGridLayout());
 220                 c.setLayoutData(CmsUtils.fillAll());
 221
 222                 SelectionListener selectionListener = new SelectionAdapter() {
 223                         private static final long serialVersionUID = 4891637813567806762L;
 224
 225                         public void widgetSelected(SelectionEvent event) {
 226                                 Button button = (Button) event.widget;
 227                                 if (button.getSelection()) {
 228                                         localeChoice.setSelectedIndex((Integer) event.widget.getData());
 229                                         updateLocale(localeChoice.getSelectedLocale());
 230                                 }
 231                         };
 232                 };
 233
 234                 List<Locale> locales = localeChoice.getLocales();
 235                 for (Integer i = 0; i < locales.size(); i++) {
 236                         Locale locale = locales.get(i);
 237                         Button button = new Button(c, SWT.RADIO);
 238                         button.setData(i);
 239                         button.setText(LocaleUtils.lead(locale.getDisplayName(locale), locale) + " (" + locale + ")");
 240                         // button.addListener(SWT.Selection, listener);
 241                         button.addSelectionListener(selectionListener);
 242                         if (i == localeChoice.getSelectedIndex())
 243                                 button.setSelection(true);
 244                 }
 245                 return c;
 246         }
 247
 248         protected boolean login() {
 249                 // Subject subject = cmsView.getLoginContext().getSubject();
 250                 LoginContext loginContext = cmsView.getLoginContext();
 251                 try {
 252                         //
 253                         // LOGIN
 254                         //
 255                         loginContext.logout();
 256                         loginContext = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, this);
 257                         loginContext.login();
 258                 } catch (FailedLoginException e) {
 259                         log.warn(e.getMessage());
 260                         try {
 261                                 Thread.sleep(3000);
 262                         } catch (InterruptedException e2) {
 263                                 // silent
 264                         }
 265                         // ErrorFeedback.show("Login failed", e);
 266                         return false;
 267                 } catch (LoginException e) {
 268                         log.error("Cannot login", e);
 269                         return false;
 270                 }
 271                 cmsView.authChange(loginContext);
 272                 return true;
 273         }
 274
 275         protected void logout() {
 276                 cmsView.logout();
 277                 cmsView.navigateTo("~");
 278         }
 279
 280         @Override
 281         public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
 282                 for (Callback callback : callbacks) {
 283                         if (callback instanceof NameCallback && usernameT != null)
 284                                 ((NameCallback) callback).setName(usernameT.getText());
 285                         else if (callback instanceof PasswordCallback && passwordT != null)
 286                                 ((PasswordCallback) callback).setPassword(passwordT.getTextChars());
 287                         else if (callback instanceof HttpRequestCallback)
 288                                 ((HttpRequestCallback) callback).setRequest(UiContext.getHttpRequest());
 289                         else if (callback instanceof LanguageCallback && localeChoice != null)
 290                                 ((LanguageCallback) callback).setLocale(localeChoice.getSelectedLocale());
 291                 }
 292         }
 293
 294 }