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.Collections;
   8 import java.util.List;
   9 import java.util.Locale;
  10
  11 import javax.security.auth.Subject;
  12 import javax.security.auth.callback.Callback;
  13 import javax.security.auth.callback.CallbackHandler;
  14 import javax.security.auth.callback.LanguageCallback;
  15 import javax.security.auth.callback.NameCallback;
  16 import javax.security.auth.callback.PasswordCallback;
  17 import javax.security.auth.callback.UnsupportedCallbackException;
  18 import javax.security.auth.login.LoginContext;
  19 import javax.security.auth.login.LoginException;
  20
  21 import org.argeo.api.cms.CmsAuth;
  22 import org.argeo.api.cms.CmsContext;
  23 import org.argeo.api.cms.CmsLog;
  24 import org.argeo.api.cms.ux.CmsView;
  25 import org.argeo.cms.CmsMsg;
  26 import org.argeo.cms.LocaleUtils;
  27 import org.argeo.cms.auth.RemoteAuthCallback;
  28 import org.argeo.cms.servlet.ServletHttpRequest;
  29 import org.argeo.cms.servlet.ServletHttpResponse;
  30 import org.argeo.cms.swt.CmsStyles;
  31 import org.argeo.cms.swt.CmsSwtUtils;
  32 import org.argeo.eclipse.ui.specific.UiContext;
  33 import org.eclipse.swt.SWT;
  34 import org.eclipse.swt.events.MouseAdapter;
  35 import org.eclipse.swt.events.MouseEvent;
  36 import org.eclipse.swt.events.SelectionAdapter;
  37 import org.eclipse.swt.events.SelectionEvent;
  38 import org.eclipse.swt.events.SelectionListener;
  39 import org.eclipse.swt.events.TraverseEvent;
  40 import org.eclipse.swt.events.TraverseListener;
  41 import org.eclipse.swt.layout.GridData;
  42 import org.eclipse.swt.layout.GridLayout;
  43 import org.eclipse.swt.widgets.Button;
  44 import org.eclipse.swt.widgets.Composite;
  45 import org.eclipse.swt.widgets.Control;
  46 import org.eclipse.swt.widgets.Label;
  47 import org.eclipse.swt.widgets.Shell;
  48 import org.eclipse.swt.widgets.Text;
  49
  50 public class CmsLogin implements CmsStyles, CallbackHandler {
  51         private final static CmsLog log = CmsLog.getLog(CmsLogin.class);
  52
  53         private Composite parent;
  54         private Text usernameT, passwordT;
  55         private Composite credentialsBlock;
  56         private final SelectionListener loginSelectionListener;
  57
  58         private final Locale defaultLocale;
  59         private LocaleChoice localeChoice = null;
  60
  61         private final CmsView cmsView;
  62
  63         // optional subject to be set explicitly
  64         private Subject subject = null;
  65
  66         private CmsContext cmsContext;
  67
  68         public CmsLogin(CmsView cmsView, CmsContext cmsContext) {
  69                 this.cmsView = cmsView;
  70                 this.cmsContext = cmsContext;
  71                 if (this.cmsContext != null) {
  72                         defaultLocale = this.cmsContext.getDefaultLocale();
  73                         List<Locale> locales = this.cmsContext.getLocales();
  74                         if (locales != null)
  75                                 localeChoice = new LocaleChoice(locales, defaultLocale);
  76                 } else {
  77                         defaultLocale = Locale.getDefault();
  78                 }
  79                 loginSelectionListener = new SelectionListener() {
  80                         private static final long serialVersionUID = -8832133363830973578L;
  81
  82                         @Override
  83                         public void widgetSelected(SelectionEvent e) {
  84                                 login();
  85                         }
  86
  87                         @Override
  88                         public void widgetDefaultSelected(SelectionEvent e) {
  89                         }
  90                 };
  91         }
  92
  93         protected boolean isAnonymous() {
  94                 return cmsView.isAnonymous();
  95         }
  96
  97         public final void createUi(Composite parent) {
  98                 this.parent = parent;
  99                 createContents(parent);
 100         }
 101
 102         protected void createContents(Composite parent) {
 103                 defaultCreateContents(parent);
 104         }
 105
 106         public final void defaultCreateContents(Composite parent) {
 107                 parent.setLayout(CmsSwtUtils.noSpaceGridLayout());
 108                 Composite credentialsBlock = createCredentialsBlock(parent);
 109                 if (parent instanceof Shell) {
 110                         credentialsBlock.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, true, true));
 111                 }
 112         }
 113
 114         public final Composite createCredentialsBlock(Composite parent) {
 115                 if (isAnonymous()) {
 116                         return anonymousUi(parent);
 117                 } else {
 118                         return userUi(parent);
 119                 }
 120         }
 121
 122         public Composite getCredentialsBlock() {
 123                 return credentialsBlock;
 124         }
 125
 126         protected Composite userUi(Composite parent) {
 127                 Locale locale = localeChoice == null ? this.defaultLocale : localeChoice.getSelectedLocale();
 128                 credentialsBlock = new Composite(parent, SWT.NONE);
 129                 credentialsBlock.setLayout(new GridLayout());
 130                 // credentialsBlock.setLayoutData(CmsUiUtils.fillAll());
 131
 132                 specificUserUi(credentialsBlock);
 133
 134                 Label l = new Label(credentialsBlock, SWT.NONE);
 135                 CmsSwtUtils.style(l, CMS_USER_MENU_ITEM);
 136                 l.setText(CmsMsg.logout.lead(locale));
 137                 GridData lData = CmsSwtUtils.fillWidth();
 138                 lData.widthHint = 120;
 139                 l.setLayoutData(lData);
 140
 141                 l.addMouseListener(new MouseAdapter() {
 142                         private static final long serialVersionUID = 6444395812777413116L;
 143
 144                         public void mouseDown(MouseEvent e) {
 145                                 logout();
 146                         }
 147                 });
 148                 return credentialsBlock;
 149         }
 150
 151         /** To be overridden */
 152         protected void specificUserUi(Composite parent) {
 153
 154         }
 155
 156         protected Composite anonymousUi(Composite parent) {
 157                 Locale locale = localeChoice == null ? this.defaultLocale : localeChoice.getSelectedLocale();
 158                 // We need a composite for the traversal
 159                 credentialsBlock = new Composite(parent, SWT.NONE);
 160                 credentialsBlock.setLayout(new GridLayout());
 161                 // credentialsBlock.setLayoutData(CmsUiUtils.fillAll());
 162                 CmsSwtUtils.style(credentialsBlock, CMS_LOGIN_DIALOG);
 163
 164                 Integer textWidth = 120;
 165                 if (parent instanceof Shell)
 166                         CmsSwtUtils.style(parent, CMS_USER_MENU);
 167                 // new Label(this, SWT.NONE).setText(CmsMsg.username.lead());
 168                 usernameT = new Text(credentialsBlock, SWT.BORDER);
 169                 usernameT.setMessage(username.lead(locale));
 170                 CmsSwtUtils.style(usernameT, CMS_LOGIN_DIALOG_USERNAME);
 171                 GridData gd = CmsSwtUtils.fillWidth();
 172                 gd.widthHint = textWidth;
 173                 usernameT.setLayoutData(gd);
 174
 175                 // new Label(this, SWT.NONE).setText(CmsMsg.password.lead());
 176                 passwordT = new Text(credentialsBlock, SWT.BORDER | SWT.PASSWORD);
 177                 passwordT.setMessage(password.lead(locale));
 178                 CmsSwtUtils.style(passwordT, CMS_LOGIN_DIALOG_PASSWORD);
 179                 gd = CmsSwtUtils.fillWidth();
 180                 gd.widthHint = textWidth;
 181                 passwordT.setLayoutData(gd);
 182
 183                 TraverseListener tl = new TraverseListener() {
 184                         private static final long serialVersionUID = -1158892811534971856L;
 185
 186                         public void keyTraversed(TraverseEvent e) {
 187                                 if (e.detail == SWT.TRAVERSE_RETURN)
 188                                         login();
 189                         }
 190                 };
 191                 credentialsBlock.addTraverseListener(tl);
 192                 usernameT.addTraverseListener(tl);
 193                 passwordT.addTraverseListener(tl);
 194                 parent.setTabList(new Control[] { credentialsBlock });
 195                 credentialsBlock.setTabList(new Control[] { usernameT, passwordT });
 196
 197                 // Button
 198                 Button loginButton = new Button(credentialsBlock, SWT.PUSH);
 199                 loginButton.setText(CmsMsg.login.lead(locale));
 200                 loginButton.setLayoutData(CmsSwtUtils.fillWidth());
 201                 loginButton.addSelectionListener(loginSelectionListener);
 202
 203                 extendsCredentialsBlock(credentialsBlock, locale, loginSelectionListener);
 204                 if (localeChoice != null)
 205                         createLocalesBlock(credentialsBlock);
 206                 return credentialsBlock;
 207         }
 208
 209         /**
 210          * To be overridden in order to provide custom login button and other links.
 211          */
 212         protected void extendsCredentialsBlock(Composite credentialsBlock, Locale selectedLocale,
 213                         SelectionListener loginSelectionListener) {
 214
 215         }
 216
 217         protected void updateLocale(Locale selectedLocale) {
 218                 // save already entered values
 219                 String usernameStr = usernameT.getText();
 220                 char[] pwd = passwordT.getTextChars();
 221
 222                 for (Control child : parent.getChildren())
 223                         child.dispose();
 224                 createContents(parent);
 225                 if (parent.getParent() != null)
 226                         parent.getParent().layout(true, true);
 227                 else
 228                         parent.layout();
 229                 usernameT.setText(usernameStr);
 230                 passwordT.setTextChars(pwd);
 231         }
 232
 233         protected Composite createLocalesBlock(final Composite parent) {
 234                 Composite c = new Composite(parent, SWT.NONE);
 235                 CmsSwtUtils.style(c, CMS_USER_MENU_ITEM);
 236                 c.setLayout(CmsSwtUtils.noSpaceGridLayout());
 237                 c.setLayoutData(CmsSwtUtils.fillAll());
 238
 239                 SelectionListener selectionListener = new SelectionAdapter() {
 240                         private static final long serialVersionUID = 4891637813567806762L;
 241
 242                         public void widgetSelected(SelectionEvent event) {
 243                                 Button button = (Button) event.widget;
 244                                 if (button.getSelection()) {
 245                                         localeChoice.setSelectedIndex((Integer) event.widget.getData());
 246                                         updateLocale(localeChoice.getSelectedLocale());
 247                                 }
 248                         };
 249                 };
 250
 251                 List<Locale> locales = localeChoice.getLocales();
 252                 for (Integer i = 0; i < locales.size(); i++) {
 253                         Locale locale = locales.get(i);
 254                         Button button = new Button(c, SWT.RADIO);
 255                         CmsSwtUtils.style(button, CMS_USER_MENU_ITEM);
 256                         button.setData(i);
 257                         button.setText(LocaleUtils.toLead(locale.getDisplayName(locale), locale) + " (" + locale + ")");
 258                         // button.addListener(SWT.Selection, listener);
 259                         button.addSelectionListener(selectionListener);
 260                         if (i == localeChoice.getSelectedIndex())
 261                                 button.setSelection(true);
 262                 }
 263                 return c;
 264         }
 265
 266         protected boolean login() {
 267                 // TODO use CmsVie in order to retrieve subject?
 268                 // Subject subject = cmsView.getLoginContext().getSubject();
 269                 // LoginContext loginContext = cmsView.getLoginContext();
 270                 try {
 271                         //
 272                         // LOGIN
 273                         //
 274                         // loginContext.logout();
 275                         LoginContext loginContext;
 276                         if (subject == null)
 277                                 loginContext = new LoginContext(CmsAuth.LOGIN_CONTEXT_USER, this);
 278                         else
 279                                 loginContext = new LoginContext(CmsAuth.LOGIN_CONTEXT_USER, subject, this);
 280                         loginContext.login();
 281                         cmsView.authChange(loginContext);
 282                         cmsContext.sendEvent("cms", Collections.singletonMap("msg", "New login"));
 283                         return true;
 284                 } catch (LoginException e) {
 285                         if (log.isTraceEnabled())
 286                                 log.warn("Login failed: " + e.getMessage(), e);
 287                         else
 288                                 log.warn("Login failed: " + e.getMessage());
 289
 290                         try {
 291                                 Thread.sleep(3000);
 292                         } catch (InterruptedException e2) {
 293                                 // silent
 294                         }
 295                         // ErrorFeedback.show("Login failed", e);
 296                         return false;
 297                 }
 298                 // catch (LoginException e) {
 299                 // log.error("Cannot login", e);
 300                 // return false;
 301                 // }
 302         }
 303
 304         protected void logout() {
 305                 cmsView.logout();
 306                 cmsView.navigateTo("~");
 307         }
 308
 309         @Override
 310         public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
 311                 for (Callback callback : callbacks) {
 312                         if (callback instanceof NameCallback && usernameT != null)
 313                                 ((NameCallback) callback).setName(usernameT.getText());
 314                         else if (callback instanceof PasswordCallback && passwordT != null)
 315                                 ((PasswordCallback) callback).setPassword(passwordT.getTextChars());
 316                         else if (callback instanceof RemoteAuthCallback) {
 317                                 ((RemoteAuthCallback) callback).setRequest(new ServletHttpRequest(UiContext.getHttpRequest()));
 318                                 ((RemoteAuthCallback) callback).setResponse(new ServletHttpResponse(UiContext.getHttpResponse()));
 319                         } else if (callback instanceof LanguageCallback) {
 320                                 Locale toUse = null;
 321                                 if (localeChoice != null)
 322                                         toUse = localeChoice.getSelectedLocale();
 323                                 else if (defaultLocale != null)
 324                                         toUse = defaultLocale;
 325
 326                                 if (toUse != null) {
 327                                         ((LanguageCallback) callback).setLocale(toUse);
 328                                         UiContext.setLocale(toUse);
 329                                 }
 330
 331                         }
 332                 }
 333         }
 334
 335         public void setSubject(Subject subject) {
 336                 this.subject = subject;
 337         }
 338
 339 }