eclipse/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         private CmsContext cmsContext;
  66
  67         public CmsLogin(CmsView cmsView, CmsContext cmsContext) {
  68                 this.cmsView = cmsView;
  69                 this.cmsContext = cmsContext;
  70                 if (this.cmsContext != null) {
  71                         defaultLocale = this.cmsContext.getDefaultLocale();
  72                         List<Locale> locales = this.cmsContext.getLocales();
  73                         if (locales != null)
  74                                 localeChoice = new LocaleChoice(locales, defaultLocale);
  75                 } else {
  76                         defaultLocale = Locale.getDefault();
  77                 }
  78                 loginSelectionListener = new SelectionListener() {
  79                         private static final long serialVersionUID = -8832133363830973578L;
  80
  81                         @Override
  82                         public void widgetSelected(SelectionEvent e) {
  83                                 login();
  84                         }
  85
  86                         @Override
  87                         public void widgetDefaultSelected(SelectionEvent e) {
  88                         }
  89                 };
  90         }
  91
  92         protected boolean isAnonymous() {
  93                 return cmsView.isAnonymous();
  94         }
  95
  96         public final void createUi(Composite parent) {
  97                 this.parent = parent;
  98                 createContents(parent);
  99         }
 100
 101         protected void createContents(Composite parent) {
 102                 defaultCreateContents(parent);
 103         }
 104
 105         public final void defaultCreateContents(Composite parent) {
 106                 parent.setLayout(CmsSwtUtils.noSpaceGridLayout());
 107                 Composite credentialsBlock = createCredentialsBlock(parent);
 108                 if (parent instanceof Shell) {
 109                         credentialsBlock.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, true, true));
 110                 }
 111         }
 112
 113         public final Composite createCredentialsBlock(Composite parent) {
 114                 if (isAnonymous()) {
 115                         return anonymousUi(parent);
 116                 } else {
 117                         return userUi(parent);
 118                 }
 119         }
 120
 121         public Composite getCredentialsBlock() {
 122                 return credentialsBlock;
 123         }
 124
 125         protected Composite userUi(Composite parent) {
 126                 Locale locale = localeChoice == null ? this.defaultLocale : localeChoice.getSelectedLocale();
 127                 credentialsBlock = new Composite(parent, SWT.NONE);
 128                 credentialsBlock.setLayout(new GridLayout());
 129                 // credentialsBlock.setLayoutData(CmsUiUtils.fillAll());
 130
 131                 specificUserUi(credentialsBlock);
 132
 133                 Label l = new Label(credentialsBlock, SWT.NONE);
 134                 CmsSwtUtils.style(l, CMS_USER_MENU_ITEM);
 135                 l.setText(CmsMsg.logout.lead(locale));
 136                 GridData lData = CmsSwtUtils.fillWidth();
 137                 lData.widthHint = 120;
 138                 l.setLayoutData(lData);
 139
 140                 l.addMouseListener(new MouseAdapter() {
 141                         private static final long serialVersionUID = 6444395812777413116L;
 142
 143                         public void mouseDown(MouseEvent e) {
 144                                 logout();
 145                         }
 146                 });
 147                 return credentialsBlock;
 148         }
 149
 150         /** To be overridden */
 151         protected void specificUserUi(Composite parent) {
 152
 153         }
 154
 155         protected Composite anonymousUi(Composite parent) {
 156                 Locale locale = localeChoice == null ? this.defaultLocale : localeChoice.getSelectedLocale();
 157                 // We need a composite for the traversal
 158                 credentialsBlock = new Composite(parent, SWT.NONE);
 159                 credentialsBlock.setLayout(new GridLayout());
 160                 // credentialsBlock.setLayoutData(CmsUiUtils.fillAll());
 161                 CmsSwtUtils.style(credentialsBlock, CMS_LOGIN_DIALOG);
 162
 163                 Integer textWidth = 120;
 164                 if (parent instanceof Shell)
 165                         CmsSwtUtils.style(parent, CMS_USER_MENU);
 166                 // new Label(this, SWT.NONE).setText(CmsMsg.username.lead());
 167                 usernameT = new Text(credentialsBlock, SWT.BORDER);
 168                 usernameT.setMessage(username.lead(locale));
 169                 CmsSwtUtils.style(usernameT, CMS_LOGIN_DIALOG_USERNAME);
 170                 GridData gd = CmsSwtUtils.fillWidth();
 171                 gd.widthHint = textWidth;
 172                 usernameT.setLayoutData(gd);
 173
 174                 // new Label(this, SWT.NONE).setText(CmsMsg.password.lead());
 175                 passwordT = new Text(credentialsBlock, SWT.BORDER | SWT.PASSWORD);
 176                 passwordT.setMessage(password.lead(locale));
 177                 CmsSwtUtils.style(passwordT, CMS_LOGIN_DIALOG_PASSWORD);
 178                 gd = CmsSwtUtils.fillWidth();
 179                 gd.widthHint = textWidth;
 180                 passwordT.setLayoutData(gd);
 181
 182                 TraverseListener tl = new TraverseListener() {
 183                         private static final long serialVersionUID = -1158892811534971856L;
 184
 185                         public void keyTraversed(TraverseEvent e) {
 186                                 if (e.detail == SWT.TRAVERSE_RETURN)
 187                                         login();
 188                         }
 189                 };
 190                 credentialsBlock.addTraverseListener(tl);
 191                 usernameT.addTraverseListener(tl);
 192                 passwordT.addTraverseListener(tl);
 193                 parent.setTabList(new Control[] { credentialsBlock });
 194                 credentialsBlock.setTabList(new Control[] { usernameT, passwordT });
 195
 196                 // Button
 197                 Button loginButton = new Button(credentialsBlock, SWT.PUSH);
 198                 loginButton.setText(CmsMsg.login.lead(locale));
 199                 loginButton.setLayoutData(CmsSwtUtils.fillWidth());
 200                 loginButton.addSelectionListener(loginSelectionListener);
 201
 202                 extendsCredentialsBlock(credentialsBlock, locale, loginSelectionListener);
 203                 if (localeChoice != null)
 204                         createLocalesBlock(credentialsBlock);
 205                 return credentialsBlock;
 206         }
 207
 208         /**
 209          * To be overridden in order to provide custom login button and other links.
 210          */
 211         protected void extendsCredentialsBlock(Composite credentialsBlock, Locale selectedLocale,
 212                         SelectionListener loginSelectionListener) {
 213
 214         }
 215
 216         protected void updateLocale(Locale selectedLocale) {
 217                 // save already entered values
 218                 String usernameStr = usernameT.getText();
 219                 char[] pwd = passwordT.getTextChars();
 220
 221                 for (Control child : parent.getChildren())
 222                         child.dispose();
 223                 createContents(parent);
 224                 if (parent.getParent() != null)
 225                         parent.getParent().layout(true, true);
 226                 else
 227                         parent.layout();
 228                 usernameT.setText(usernameStr);
 229                 passwordT.setTextChars(pwd);
 230         }
 231
 232         protected Composite createLocalesBlock(final Composite parent) {
 233                 Composite c = new Composite(parent, SWT.NONE);
 234                 CmsSwtUtils.style(c, CMS_USER_MENU_ITEM);
 235                 c.setLayout(CmsSwtUtils.noSpaceGridLayout());
 236                 c.setLayoutData(CmsSwtUtils.fillAll());
 237
 238                 SelectionListener selectionListener = new SelectionAdapter() {
 239                         private static final long serialVersionUID = 4891637813567806762L;
 240
 241                         public void widgetSelected(SelectionEvent event) {
 242                                 Button button = (Button) event.widget;
 243                                 if (button.getSelection()) {
 244                                         localeChoice.setSelectedIndex((Integer) event.widget.getData());
 245                                         updateLocale(localeChoice.getSelectedLocale());
 246                                 }
 247                         };
 248                 };
 249
 250                 List<Locale> locales = localeChoice.getLocales();
 251                 for (Integer i = 0; i < locales.size(); i++) {
 252                         Locale locale = locales.get(i);
 253                         Button button = new Button(c, SWT.RADIO);
 254                         CmsSwtUtils.style(button, CMS_USER_MENU_ITEM);
 255                         button.setData(i);
 256                         button.setText(LocaleUtils.toLead(locale.getDisplayName(locale), locale) + " (" + locale + ")");
 257                         // button.addListener(SWT.Selection, listener);
 258                         button.addSelectionListener(selectionListener);
 259                         if (i == localeChoice.getSelectedIndex())
 260                                 button.setSelection(true);
 261                 }
 262                 return c;
 263         }
 264
 265         protected boolean login() {
 266                 // TODO use CmsVie in order to retrieve subject?
 267                 // Subject subject = cmsView.getLoginContext().getSubject();
 268                 // LoginContext loginContext = cmsView.getLoginContext();
 269                 try {
 270                         //
 271                         // LOGIN
 272                         //
 273                         // loginContext.logout();
 274                         LoginContext loginContext;
 275                         if (subject == null)
 276                                 loginContext = new LoginContext(CmsAuth.LOGIN_CONTEXT_USER, this);
 277                         else
 278                                 loginContext = new LoginContext(CmsAuth.LOGIN_CONTEXT_USER, subject, this);
 279                         loginContext.login();
 280                         cmsView.authChange(loginContext);
 281                         return true;
 282                 } catch (LoginException e) {
 283                         if (log.isTraceEnabled())
 284                                 log.warn("Login failed: " + e.getMessage(), e);
 285                         else
 286                                 log.warn("Login failed: " + e.getMessage());
 287
 288                         try {
 289                                 Thread.sleep(3000);
 290                         } catch (InterruptedException e2) {
 291                                 // silent
 292                         }
 293                         // ErrorFeedback.show("Login failed", e);
 294                         return false;
 295                 }
 296                 // catch (LoginException e) {
 297                 // log.error("Cannot login", e);
 298                 // return false;
 299                 // }
 300         }
 301
 302         protected void logout() {
 303                 cmsView.logout();
 304                 cmsView.navigateTo("~");
 305         }
 306
 307         @Override
 308         public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
 309                 for (Callback callback : callbacks) {
 310                         if (callback instanceof NameCallback && usernameT != null)
 311                                 ((NameCallback) callback).setName(usernameT.getText());
 312                         else if (callback instanceof PasswordCallback && passwordT != null)
 313                                 ((PasswordCallback) callback).setPassword(passwordT.getTextChars());
 314                         else if (callback instanceof RemoteAuthCallback) {
 315                                 ((RemoteAuthCallback) callback).setRequest(new ServletHttpRequest(UiContext.getHttpRequest()));
 316                                 ((RemoteAuthCallback) callback).setResponse(new ServletHttpResponse(UiContext.getHttpResponse()));
 317                         } else if (callback instanceof LanguageCallback) {
 318                                 Locale toUse = null;
 319                                 if (localeChoice != null)
 320                                         toUse = localeChoice.getSelectedLocale();
 321                                 else if (defaultLocale != null)
 322                                         toUse = defaultLocale;
 323
 324                                 if (toUse != null) {
 325                                         ((LanguageCallback) callback).setLocale(toUse);
 326                                         UiContext.setLocale(toUse);
 327                                 }
 328
 329                         }
 330                 }
 331         }
 332
 333         public void setSubject(Subject subject) {
 334                 this.subject = subject;
 335         }
 336
 337 }