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.LoginContext;
  17 import javax.security.auth.login.LoginException;
  18
  19 import org.apache.commons.logging.Log;
  20 import org.apache.commons.logging.LogFactory;
  21 import org.argeo.cms.CmsMsg;
  22 import org.argeo.cms.auth.HttpRequestCallback;
  23 import org.argeo.cms.i18n.LocaleUtils;
  24 import org.argeo.cms.ui.CmsStyles;
  25 import org.argeo.cms.ui.CmsView;
  26 import org.argeo.cms.ui.internal.Activator;
  27 import org.argeo.cms.util.CmsUtils;
  28 import org.argeo.eclipse.ui.specific.UiContext;
  29 import org.argeo.node.NodeConstants;
  30 import org.eclipse.swt.SWT;
  31 import org.eclipse.swt.events.MouseAdapter;
  32 import org.eclipse.swt.events.MouseEvent;
  33 import org.eclipse.swt.events.SelectionAdapter;
  34 import org.eclipse.swt.events.SelectionEvent;
  35 import org.eclipse.swt.events.SelectionListener;
  36 import org.eclipse.swt.events.TraverseEvent;
  37 import org.eclipse.swt.events.TraverseListener;
  38 import org.eclipse.swt.layout.GridData;
  39 import org.eclipse.swt.layout.GridLayout;
  40 import org.eclipse.swt.widgets.Button;
  41 import org.eclipse.swt.widgets.Composite;
  42 import org.eclipse.swt.widgets.Control;
  43 import org.eclipse.swt.widgets.Label;
  44 import org.eclipse.swt.widgets.Shell;
  45 import org.eclipse.swt.widgets.Text;
  46
  47 public class CmsLogin implements CmsStyles, CallbackHandler {
  48         private final static Log log = LogFactory.getLog(CmsLogin.class);
  49
  50         private Composite parent;
  51         private Text usernameT, passwordT;
  52         private Composite credentialsBlock;
  53         private final SelectionListener loginSelectionListener;
  54
  55         private final Locale defaultLocale;
  56         private LocaleChoice localeChoice = null;
  57
  58         private final CmsView cmsView;
  59
  60         public CmsLogin(CmsView cmsView) {
  61                 this.cmsView = cmsView;
  62                 defaultLocale = Activator.getNodeState().getDefaultLocale();
  63                 List<Locale> locales = Activator.getNodeState().getLocales();
  64                 if (locales != null)
  65                         localeChoice = new LocaleChoice(locales, defaultLocale);
  66                 loginSelectionListener = new SelectionListener() {
  67                         private static final long serialVersionUID = -8832133363830973578L;
  68
  69                         @Override
  70                         public void widgetSelected(SelectionEvent e) {
  71                                 login();
  72                         }
  73
  74                         @Override
  75                         public void widgetDefaultSelected(SelectionEvent e) {
  76                         }
  77                 };
  78         }
  79
  80         protected boolean isAnonymous() {
  81                 return cmsView.isAnonymous();
  82         }
  83
  84         public final void createUi(Composite parent) {
  85                 this.parent = parent;
  86                 createContents(parent);
  87         }
  88
  89         protected void createContents(Composite parent) {
  90                 defaultCreateContents(parent);
  91         }
  92
  93         public final void defaultCreateContents(Composite parent) {
  94                 parent.setLayout(CmsUtils.noSpaceGridLayout());
  95                 Composite credentialsBlock = createCredentialsBlock(parent);
  96                 if (parent instanceof Shell) {
  97                         credentialsBlock.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, true, true));
  98                 }
  99         }
 100
 101         public final Composite createCredentialsBlock(Composite parent) {
 102                 if (isAnonymous()) {
 103                         return anonymousUi(parent);
 104                 } else {
 105                         return userUi(parent);
 106                 }
 107         }
 108
 109         protected Composite getCredentialsBlock() {
 110                 return credentialsBlock;
 111         }
 112
 113         protected Composite userUi(Composite parent) {
 114                 Locale locale = localeChoice == null ? this.defaultLocale : localeChoice.getSelectedLocale();
 115                 credentialsBlock = new Composite(parent, SWT.NONE);
 116                 credentialsBlock.setLayout(new GridLayout());
 117                 credentialsBlock.setLayoutData(CmsUtils.fillAll());
 118
 119                 specificUserUi(credentialsBlock);
 120
 121                 Label l = new Label(credentialsBlock, SWT.NONE);
 122                 CmsUtils.style(l, CMS_USER_MENU_ITEM);
 123                 l.setText(CmsMsg.logout.lead(locale));
 124                 GridData lData = CmsUtils.fillWidth();
 125                 lData.widthHint = 120;
 126                 l.setLayoutData(lData);
 127
 128                 l.addMouseListener(new MouseAdapter() {
 129                         private static final long serialVersionUID = 6444395812777413116L;
 130
 131                         public void mouseDown(MouseEvent e) {
 132                                 logout();
 133                         }
 134                 });
 135                 return credentialsBlock;
 136         }
 137
 138         /** To be overridden */
 139         protected void specificUserUi(Composite parent) {
 140
 141         }
 142
 143         protected Composite anonymousUi(Composite parent) {
 144                 Locale locale = localeChoice == null ? this.defaultLocale : localeChoice.getSelectedLocale();
 145                 // We need a composite for the traversal
 146                 credentialsBlock = new Composite(parent, SWT.NONE);
 147                 credentialsBlock.setLayout(new GridLayout());
 148                 credentialsBlock.setLayoutData(CmsUtils.fillAll());
 149
 150                 Integer textWidth = 120;
 151                 CmsUtils.style(parent, CMS_USER_MENU);
 152
 153                 // new Label(this, SWT.NONE).setText(CmsMsg.username.lead());
 154                 usernameT = new Text(credentialsBlock, SWT.BORDER);
 155                 usernameT.setMessage(username.lead(locale));
 156                 CmsUtils.style(usernameT, CMS_LOGIN_DIALOG_USERNAME);
 157                 GridData gd = CmsUtils.fillWidth();
 158                 gd.widthHint = textWidth;
 159                 usernameT.setLayoutData(gd);
 160
 161                 // new Label(this, SWT.NONE).setText(CmsMsg.password.lead());
 162                 passwordT = new Text(credentialsBlock, SWT.BORDER | SWT.PASSWORD);
 163                 passwordT.setMessage(password.lead(locale));
 164                 CmsUtils.style(passwordT, CMS_LOGIN_DIALOG_PASSWORD);
 165                 gd = CmsUtils.fillWidth();
 166                 gd.widthHint = textWidth;
 167                 passwordT.setLayoutData(gd);
 168
 169                 TraverseListener tl = new TraverseListener() {
 170                         private static final long serialVersionUID = -1158892811534971856L;
 171
 172                         public void keyTraversed(TraverseEvent e) {
 173                                 if (e.detail == SWT.TRAVERSE_RETURN)
 174                                         login();
 175                         }
 176                 };
 177                 credentialsBlock.addTraverseListener(tl);
 178                 usernameT.addTraverseListener(tl);
 179                 passwordT.addTraverseListener(tl);
 180                 parent.setTabList(new Control[] { credentialsBlock });
 181                 credentialsBlock.setTabList(new Control[] { usernameT, passwordT });
 182                 // credentialsBlock.setFocus();
 183
 184                 extendsCredentialsBlock(credentialsBlock, locale, loginSelectionListener);
 185                 if (localeChoice != null)
 186                         createLocalesBlock(credentialsBlock);
 187                 return credentialsBlock;
 188         }
 189
 190         /**
 191          * To be overridden in order to provide custome login button and other
 192          * links.
 193          */
 194         protected void extendsCredentialsBlock(Composite credentialsBlock, Locale selectedLocale,
 195                         SelectionListener loginSelectionListener) {
 196
 197         }
 198
 199         protected void updateLocale(Locale selectedLocale) {
 200                 // save already entered values
 201                 String usernameStr = usernameT.getText();
 202                 char[] pwd = passwordT.getTextChars();
 203
 204                 for (Control child : parent.getChildren())
 205                         child.dispose();
 206                 createContents(parent);
 207                 if (parent.getParent() != null)
 208                         parent.getParent().layout();
 209                 else
 210                         parent.layout();
 211                 usernameT.setText(usernameStr);
 212                 passwordT.setTextChars(pwd);
 213         }
 214
 215         protected Composite createLocalesBlock(final Composite parent) {
 216                 Composite c = new Composite(parent, SWT.NONE);
 217                 c.setLayout(CmsUtils.noSpaceGridLayout());
 218                 c.setLayoutData(CmsUtils.fillAll());
 219
 220                 SelectionListener selectionListener = new SelectionAdapter() {
 221                         private static final long serialVersionUID = 4891637813567806762L;
 222
 223                         public void widgetSelected(SelectionEvent event) {
 224                                 Button button = (Button) event.widget;
 225                                 if (button.getSelection()) {
 226                                         localeChoice.setSelectedIndex((Integer) event.widget.getData());
 227                                         updateLocale(localeChoice.getSelectedLocale());
 228                                 }
 229                         };
 230                 };
 231
 232                 List<Locale> locales = localeChoice.getLocales();
 233                 for (Integer i = 0; i < locales.size(); i++) {
 234                         Locale locale = locales.get(i);
 235                         Button button = new Button(c, SWT.RADIO);
 236                         button.setData(i);
 237                         button.setText(LocaleUtils.lead(locale.getDisplayName(locale), locale) + " (" + locale + ")");
 238                         // button.addListener(SWT.Selection, listener);
 239                         button.addSelectionListener(selectionListener);
 240                         if (i == localeChoice.getSelectedIndex())
 241                                 button.setSelection(true);
 242                 }
 243                 return c;
 244         }
 245
 246         protected boolean login() {
 247                 // Subject subject = cmsView.getLoginContext().getSubject();
 248                 // LoginContext loginContext = cmsView.getLoginContext();
 249                 try {
 250                         //
 251                         // LOGIN
 252                         //
 253                         // loginContext.logout();
 254                         LoginContext loginContext = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, this);
 255                         loginContext.login();
 256                         cmsView.authChange(loginContext);
 257                         return true;
 258                 } catch (LoginException e) {
 259                         if (log.isTraceEnabled())
 260                                 log.warn("Login failed: " + e.getMessage(), e);
 261                         else
 262                                 log.warn("Login failed: " + e.getMessage());
 263
 264                         try {
 265                                 Thread.sleep(3000);
 266                         } catch (InterruptedException e2) {
 267                                 // silent
 268                         }
 269                         // ErrorFeedback.show("Login failed", e);
 270                         return false;
 271                 }
 272                 // catch (LoginException e) {
 273                 // log.error("Cannot login", e);
 274                 // return false;
 275                 // }
 276         }
 277
 278         protected void logout() {
 279                 cmsView.logout();
 280                 cmsView.navigateTo("~");
 281         }
 282
 283         @Override
 284         public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
 285                 for (Callback callback : callbacks) {
 286                         if (callback instanceof NameCallback && usernameT != null)
 287                                 ((NameCallback) callback).setName(usernameT.getText());
 288                         else if (callback instanceof PasswordCallback && passwordT != null)
 289                                 ((PasswordCallback) callback).setPassword(passwordT.getTextChars());
 290                         else if (callback instanceof HttpRequestCallback) {
 291                                 ((HttpRequestCallback) callback).setRequest(UiContext.getHttpRequest());
 292                                 ((HttpRequestCallback) callback).setResponse(UiContext.getHttpResponse());
 293                         } else if (callback instanceof LanguageCallback && localeChoice != null)
 294                                 ((LanguageCallback) callback).setLocale(localeChoice.getSelectedLocale());
 295                 }
 296         }
 297
 298 }