org.argeo.cms.swt/src/org/argeo/cms/swt/auth/CmsLogin.java

   1 package org.argeo.cms.swt.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.Subject;
  11 import javax.security.auth.callback.Callback;
  12 import javax.security.auth.callback.CallbackHandler;
  13 import javax.security.auth.callback.LanguageCallback;
  14 import javax.security.auth.callback.NameCallback;
  15 import javax.security.auth.callback.PasswordCallback;
  16 import javax.security.auth.callback.UnsupportedCallbackException;
  17 import javax.security.auth.login.LoginContext;
  18 import javax.security.auth.login.LoginException;
  19
  20 import org.argeo.api.cms.CmsAuth;
  21 import org.argeo.api.cms.CmsContext;
  22 import org.argeo.api.cms.CmsLog;
  23 import org.argeo.api.cms.CmsView;
  24 import org.argeo.cms.CmsMsg;
  25 import org.argeo.cms.LocaleUtils;
  26 import org.argeo.cms.auth.RemoteAuthCallback;
  27 import org.argeo.cms.servlet.ServletHttpRequest;
  28 import org.argeo.cms.servlet.ServletHttpResponse;
  29 import org.argeo.cms.swt.CmsStyles;
  30 import org.argeo.cms.swt.CmsSwtUtils;
  31 import org.argeo.eclipse.ui.specific.UiContext;
  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 CmsLog log = CmsLog.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         // optional subject to be set explicitly
  63         private Subject subject = null;
  64
  65         public CmsLogin(CmsView cmsView) {
  66                 this.cmsView = cmsView;
  67                 CmsContext nodeState = null;// = Activator.getNodeState();
  68                 // FIXME reactivate locales
  69                 if (nodeState != null) {
  70                         defaultLocale = nodeState.getDefaultLocale();
  71                         List<Locale> locales = nodeState.getLocales();
  72                         if (locales != null)
  73                                 localeChoice = new LocaleChoice(locales, defaultLocale);
  74                 } else {
  75                         defaultLocale = Locale.getDefault();
  76                 }
  77                 loginSelectionListener = new SelectionListener() {
  78                         private static final long serialVersionUID = -8832133363830973578L;
  79
  80                         @Override
  81                         public void widgetSelected(SelectionEvent e) {
  82                                 login();
  83                         }
  84
  85                         @Override
  86                         public void widgetDefaultSelected(SelectionEvent e) {
  87                         }
  88                 };
  89         }
  90
  91         protected boolean isAnonymous() {
  92                 return cmsView.isAnonymous();
  93         }
  94
  95         public final void createUi(Composite parent) {
  96                 this.parent = parent;
  97                 createContents(parent);
  98         }
  99
 100         protected void createContents(Composite parent) {
 101                 defaultCreateContents(parent);
 102         }
 103
 104         public final void defaultCreateContents(Composite parent) {
 105                 parent.setLayout(CmsSwtUtils.noSpaceGridLayout());
 106                 Composite credentialsBlock = createCredentialsBlock(parent);
 107                 if (parent instanceof Shell) {
 108                         credentialsBlock.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, true, true));
 109                 }
 110         }
 111
 112         public final Composite createCredentialsBlock(Composite parent) {
 113                 if (isAnonymous()) {
 114                         return anonymousUi(parent);
 115                 } else {
 116                         return userUi(parent);
 117                 }
 118         }
 119
 120         public Composite getCredentialsBlock() {
 121                 return credentialsBlock;
 122         }
 123
 124         protected Composite userUi(Composite parent) {
 125                 Locale locale = localeChoice == null ? this.defaultLocale : localeChoice.getSelectedLocale();
 126                 credentialsBlock = new Composite(parent, SWT.NONE);
 127                 credentialsBlock.setLayout(new GridLayout());
 128                 // credentialsBlock.setLayoutData(CmsUiUtils.fillAll());
 129
 130                 specificUserUi(credentialsBlock);
 131
 132                 Label l = new Label(credentialsBlock, SWT.NONE);
 133                 CmsSwtUtils.style(l, CMS_USER_MENU_ITEM);
 134                 l.setText(CmsMsg.logout.lead(locale));
 135                 GridData lData = CmsSwtUtils.fillWidth();
 136                 lData.widthHint = 120;
 137                 l.setLayoutData(lData);
 138
 139                 l.addMouseListener(new MouseAdapter() {
 140                         private static final long serialVersionUID = 6444395812777413116L;
 141
 142                         public void mouseDown(MouseEvent e) {
 143                                 logout();
 144                         }
 145                 });
 146                 return credentialsBlock;
 147         }
 148
 149         /** To be overridden */
 150         protected void specificUserUi(Composite parent) {
 151
 152         }
 153
 154         protected Composite anonymousUi(Composite parent) {
 155                 Locale locale = localeChoice == null ? this.defaultLocale : localeChoice.getSelectedLocale();
 156                 // We need a composite for the traversal
 157                 credentialsBlock = new Composite(parent, SWT.NONE);
 158                 credentialsBlock.setLayout(new GridLayout());
 159                 // credentialsBlock.setLayoutData(CmsUiUtils.fillAll());
 160                 CmsSwtUtils.style(credentialsBlock, CMS_LOGIN_DIALOG);
 161
 162                 Integer textWidth = 120;
 163                 if (parent instanceof Shell)
 164                         CmsSwtUtils.style(parent, CMS_USER_MENU);
 165                 // new Label(this, SWT.NONE).setText(CmsMsg.username.lead());
 166                 usernameT = new Text(credentialsBlock, SWT.BORDER);
 167                 usernameT.setMessage(username.lead(locale));
 168                 CmsSwtUtils.style(usernameT, CMS_LOGIN_DIALOG_USERNAME);
 169                 GridData gd = CmsSwtUtils.fillWidth();
 170                 gd.widthHint = textWidth;
 171                 usernameT.setLayoutData(gd);
 172
 173                 // new Label(this, SWT.NONE).setText(CmsMsg.password.lead());
 174                 passwordT = new Text(credentialsBlock, SWT.BORDER | SWT.PASSWORD);
 175                 passwordT.setMessage(password.lead(locale));
 176                 CmsSwtUtils.style(passwordT, CMS_LOGIN_DIALOG_PASSWORD);
 177                 gd = CmsSwtUtils.fillWidth();
 178                 gd.widthHint = textWidth;
 179                 passwordT.setLayoutData(gd);
 180
 181                 TraverseListener tl = new TraverseListener() {
 182                         private static final long serialVersionUID = -1158892811534971856L;
 183
 184                         public void keyTraversed(TraverseEvent e) {
 185                                 if (e.detail == SWT.TRAVERSE_RETURN)
 186                                         login();
 187                         }
 188                 };
 189                 credentialsBlock.addTraverseListener(tl);
 190                 usernameT.addTraverseListener(tl);
 191                 passwordT.addTraverseListener(tl);
 192                 parent.setTabList(new Control[] { credentialsBlock });
 193                 credentialsBlock.setTabList(new Control[] { usernameT, passwordT });
 194
 195                 // Button
 196                 Button loginButton = new Button(credentialsBlock, SWT.PUSH);
 197                 loginButton.setText(CmsMsg.login.lead(locale));
 198                 loginButton.setLayoutData(CmsSwtUtils.fillWidth());
 199                 loginButton.addSelectionListener(loginSelectionListener);
 200
 201                 extendsCredentialsBlock(credentialsBlock, locale, loginSelectionListener);
 202                 if (localeChoice != null)
 203                         createLocalesBlock(credentialsBlock);
 204                 return credentialsBlock;
 205         }
 206
 207         /**
 208          * To be overridden in order to provide custom login button and other links.
 209          */
 210         protected void extendsCredentialsBlock(Composite credentialsBlock, Locale selectedLocale,
 211                         SelectionListener loginSelectionListener) {
 212
 213         }
 214
 215         protected void updateLocale(Locale selectedLocale) {
 216                 // save already entered values
 217                 String usernameStr = usernameT.getText();
 218                 char[] pwd = passwordT.getTextChars();
 219
 220                 for (Control child : parent.getChildren())
 221                         child.dispose();
 222                 createContents(parent);
 223                 if (parent.getParent() != null)
 224                         parent.getParent().layout(true, true);
 225                 else
 226                         parent.layout();
 227                 usernameT.setText(usernameStr);
 228                 passwordT.setTextChars(pwd);
 229         }
 230
 231         protected Composite createLocalesBlock(final Composite parent) {
 232                 Composite c = new Composite(parent, SWT.NONE);
 233                 CmsSwtUtils.style(c, CMS_USER_MENU_ITEM);
 234                 c.setLayout(CmsSwtUtils.noSpaceGridLayout());
 235                 c.setLayoutData(CmsSwtUtils.fillAll());
 236
 237                 SelectionListener selectionListener = new SelectionAdapter() {
 238                         private static final long serialVersionUID = 4891637813567806762L;
 239
 240                         public void widgetSelected(SelectionEvent event) {
 241                                 Button button = (Button) event.widget;
 242                                 if (button.getSelection()) {
 243                                         localeChoice.setSelectedIndex((Integer) event.widget.getData());
 244                                         updateLocale(localeChoice.getSelectedLocale());
 245                                 }
 246                         };
 247                 };
 248
 249                 List<Locale> locales = localeChoice.getLocales();
 250                 for (Integer i = 0; i < locales.size(); i++) {
 251                         Locale locale = locales.get(i);
 252                         Button button = new Button(c, SWT.RADIO);
 253                         CmsSwtUtils.style(button, CMS_USER_MENU_ITEM);
 254                         button.setData(i);
 255                         button.setText(LocaleUtils.toLead(locale.getDisplayName(locale), locale) + " (" + locale + ")");
 256                         // button.addListener(SWT.Selection, listener);
 257                         button.addSelectionListener(selectionListener);
 258                         if (i == localeChoice.getSelectedIndex())
 259                                 button.setSelection(true);
 260                 }
 261                 return c;
 262         }
 263
 264         protected boolean login() {
 265                 // TODO use CmsVie in order to retrieve subject?
 266                 // Subject subject = cmsView.getLoginContext().getSubject();
 267                 // LoginContext loginContext = cmsView.getLoginContext();
 268                 try {
 269                         //
 270                         // LOGIN
 271                         //
 272                         // loginContext.logout();
 273                         LoginContext loginContext;
 274                         if (subject == null)
 275                                 loginContext = new LoginContext(CmsAuth.LOGIN_CONTEXT_USER, this);
 276                         else
 277                                 loginContext = new LoginContext(CmsAuth.LOGIN_CONTEXT_USER, subject, this);
 278                         loginContext.login();
 279                         cmsView.authChange(loginContext);
 280                         return true;
 281                 } catch (LoginException e) {
 282                         if (log.isTraceEnabled())
 283                                 log.warn("Login failed: " + e.getMessage(), e);
 284                         else
 285                                 log.warn("Login failed: " + e.getMessage());
 286
 287                         try {
 288                                 Thread.sleep(3000);
 289                         } catch (InterruptedException e2) {
 290                                 // silent
 291                         }
 292                         // ErrorFeedback.show("Login failed", e);
 293                         return false;
 294                 }
 295                 // catch (LoginException e) {
 296                 // log.error("Cannot login", e);
 297                 // return false;
 298                 // }
 299         }
 300
 301         protected void logout() {
 302                 cmsView.logout();
 303                 cmsView.navigateTo("~");
 304         }
 305
 306         @Override
 307         public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
 308                 for (Callback callback : callbacks) {
 309                         if (callback instanceof NameCallback && usernameT != null)
 310                                 ((NameCallback) callback).setName(usernameT.getText());
 311                         else if (callback instanceof PasswordCallback && passwordT != null)
 312                                 ((PasswordCallback) callback).setPassword(passwordT.getTextChars());
 313                         else if (callback instanceof RemoteAuthCallback) {
 314                                 ((RemoteAuthCallback) callback).setRequest(new ServletHttpRequest(UiContext.getHttpRequest()));
 315                                 ((RemoteAuthCallback) callback).setResponse(new ServletHttpResponse(UiContext.getHttpResponse()));
 316                         } else if (callback instanceof LanguageCallback) {
 317                                 Locale toUse = null;
 318                                 if (localeChoice != null)
 319                                         toUse = localeChoice.getSelectedLocale();
 320                                 else if (defaultLocale != null)
 321                                         toUse = defaultLocale;
 322
 323                                 if (toUse != null) {
 324                                         ((LanguageCallback) callback).setLocale(toUse);
 325                                         UiContext.setLocale(toUse);
 326                                 }
 327
 328                         }
 329                 }
 330         }
 331
 332         public void setSubject(Subject subject) {
 333                 this.subject = subject;
 334         }
 335
 336 }