org.argeo.cms.ui/src/org/argeo/cms/util/LoginEntryPoint.java

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