LoginEntryPoint.java

   1 package org.argeo.cms.util;
   2
   3 import java.util.Locale;
   4
   5 import javax.security.auth.login.CredentialNotFoundException;
   6 import javax.security.auth.login.LoginContext;
   7 import javax.security.auth.login.LoginException;
   8 import javax.servlet.http.HttpServletRequest;
   9
  10 import org.argeo.cms.CmsException;
  11 import org.argeo.cms.auth.CurrentUser;
  12 import org.argeo.cms.ui.CmsImageManager;
  13 import org.argeo.cms.ui.CmsView;
  14 import org.argeo.cms.ui.UxContext;
  15 import org.argeo.cms.widgets.auth.CmsLogin;
  16 import org.argeo.cms.widgets.auth.CmsLoginShell;
  17 import org.argeo.eclipse.ui.specific.UiContext;
  18 import org.argeo.node.NodeConstants;
  19 import org.argeo.node.security.NodeAuthenticated;
  20 import org.eclipse.rap.rwt.RWT;
  21 import org.eclipse.rap.rwt.application.EntryPoint;
  22 import org.eclipse.swt.events.SelectionListener;
  23 import org.eclipse.swt.widgets.Composite;
  24 import org.eclipse.swt.widgets.Display;
  25
  26 public class LoginEntryPoint implements EntryPoint, CmsView {
  27         // private final static Log log = LogFactory.getLog(WorkbenchLogin.class);
  28         // private final Subject subject = new Subject();
  29         private LoginContext loginContext;
  30         private UxContext uxContext = null;
  31
  32         @Override
  33         public int createUI() {
  34                 final Display display = createDisplay();
  35                 UiContext.setData(NodeAuthenticated.KEY, this);
  36                 CmsLoginShell loginShell = createCmsLoginShell();
  37                 try {
  38                         // try pre-auth
  39                         loginContext = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, loginShell);
  40                         loginContext.login();
  41                 } catch (CredentialNotFoundException e) {
  42                         loginShell.createUi();
  43                         loginShell.open();
  44                         while (!loginShell.getShell().isDisposed()) {
  45                                 // try {
  46                                 if (!display.readAndDispatch())
  47                                         display.sleep();
  48                                 // } catch (Exception e1) {
  49                                 // try {
  50                                 // Thread.sleep(3000);
  51                                 // } catch (InterruptedException e2) {
  52                                 // // silent
  53                                 // }
  54                                 // ErrorFeedback.show("Login failed", e1);
  55                                 // return -1;
  56                                 // }
  57                         }
  58                 } catch (LoginException e) {
  59                         throw new CmsException("Cannot log in", e);
  60                 }
  61
  62                 if (CurrentUser.getUsername() == null)
  63                         return -1;
  64                 uxContext = new SimpleUxContext();
  65                 return postLogin();
  66         }
  67
  68         protected Display createDisplay() {
  69                 return new Display();
  70         }
  71
  72         protected int postLogin() {
  73                 return 0;
  74         }
  75
  76         protected HttpServletRequest getRequest() {
  77                 return RWT.getRequest();
  78         }
  79
  80
  81
  82         protected CmsLoginShell createCmsLoginShell() {
  83                 return new CmsLoginShell(this) {
  84
  85                         @Override
  86                         public void createContents(Composite parent) {
  87                                 LoginEntryPoint.this.createLoginPage(parent, this);
  88                         }
  89
  90                         @Override
  91                         protected void extendsCredentialsBlock(Composite credentialsBlock, Locale selectedLocale,
  92                                         SelectionListener loginSelectionListener) {
  93                                 LoginEntryPoint.this.extendsCredentialsBlock(credentialsBlock, selectedLocale, loginSelectionListener);
  94                         }
  95
  96                 };
  97         }
  98
  99         /**
 100          * To be overridden. CmsLogin#createCredentialsBlock() should be called at
 101          * some point in order to create the credentials composite. In order to use
 102          * the default layout, call CmsLogin#defaultCreateContents() but <b>not</b>
 103          * CmsLogin#createContent(), since it would lead to a stack overflow.
 104          */
 105         protected void createLoginPage(Composite parent, CmsLogin login) {
 106                 login.defaultCreateContents(parent);
 107         }
 108
 109         protected void extendsCredentialsBlock(Composite credentialsBlock, Locale selectedLocale,
 110                         SelectionListener loginSelectionListener) {
 111
 112         }
 113
 114         @Override
 115         public void navigateTo(String state) {
 116                 // TODO Auto-generated method stub
 117
 118         }
 119
 120         @Override
 121         public void authChange(LoginContext loginContext) {
 122                 this.loginContext = loginContext;
 123         }
 124
 125         @Override
 126         public void logout() {
 127                 if (loginContext == null)
 128                         throw new CmsException("Login context should not bet null");
 129                 try {
 130                         loginContext.logout();
 131                 } catch (LoginException e) {
 132                         throw new CmsException("Cannot log out", e);
 133                 }
 134         }
 135
 136
 137
 138         // @Override
 139         // public final Subject getSubject() {
 140         // return subject;
 141         // }
 142
 143 //      @Override
 144 //      public void registerCallbackHandler(CallbackHandler callbackHandler) {
 145 //              throw new UnsupportedOperationException();
 146 //
 147 //      }
 148
 149         @Override
 150         public void exception(Throwable e) {
 151                 // TODO Auto-generated method stub
 152
 153         }
 154
 155         @Override
 156         public LoginContext getLoginContext() {
 157                 return loginContext;
 158         }
 159
 160         @Override
 161         public CmsImageManager getImageManager() {
 162                 // TODO Auto-generated method stub
 163                 return null;
 164         }
 165
 166         @Override
 167         public UxContext getUxContext() {
 168                 return uxContext;
 169         }
 170
 171 }