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 import javax.servlet.http.HttpServletResponse;
   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         protected final static String HEADER_WWW_AUTHENTICATE = "WWW-Authenticate";
  28         protected final static String HEADER_AUTHORIZATION = "Authorization";
  29         // private final static Log log = LogFactory.getLog(WorkbenchLogin.class);
  30         // private final Subject subject = new Subject();
  31         private LoginContext loginContext;
  32         private UxContext uxContext = null;
  33
  34         @Override
  35         public int createUI() {
  36                 final Display display = createDisplay();
  37                 UiContext.setData(NodeAuthenticated.KEY, this);
  38                 CmsLoginShell loginShell = createCmsLoginShell();
  39                 try {
  40                         // try pre-auth
  41                         loginContext = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, loginShell);
  42                         loginContext.login();
  43                 } catch (LoginException e) {
  44                         loginShell.createUi();
  45                         loginShell.open();
  46
  47 //                      HttpServletRequest request = RWT.getRequest();
  48 //                      String authorization = request.getHeader(HEADER_AUTHORIZATION);
  49 //                      if (authorization == null || !authorization.startsWith("Negotiate")) {
  50 //                              HttpServletResponse response = RWT.getResponse();
  51 //                              response.setStatus(401);
  52 //                              response.setHeader(HEADER_WWW_AUTHENTICATE, "Negotiate");
  53 //                              response.setDateHeader("Date", System.currentTimeMillis());
  54 //                              response.setDateHeader("Expires", System.currentTimeMillis() + (24 * 60 * 60 * 1000));
  55 //                              response.setHeader("Accept-Ranges", "bytes");
  56 //                              response.setHeader("Connection", "Keep-Alive");
  57 //                              response.setHeader("Keep-Alive", "timeout=5, max=97");
  58 //                              // response.setContentType("text/html; charset=UTF-8");
  59 //                      }
  60
  61                         while (!loginShell.getShell().isDisposed()) {
  62                                 if (!display.readAndDispatch())
  63                                         display.sleep();
  64                         }
  65                 }
  66
  67                 if (CurrentUser.getUsername() == null)
  68                         return -1;
  69                 uxContext = new SimpleUxContext();
  70                 return postLogin();
  71         }
  72
  73         protected Display createDisplay() {
  74                 return new Display();
  75         }
  76
  77         protected int postLogin() {
  78                 return 0;
  79         }
  80
  81         protected HttpServletRequest getRequest() {
  82                 return RWT.getRequest();
  83         }
  84
  85         protected CmsLoginShell createCmsLoginShell() {
  86                 return new CmsLoginShell(this) {
  87
  88                         @Override
  89                         public void createContents(Composite parent) {
  90                                 LoginEntryPoint.this.createLoginPage(parent, this);
  91                         }
  92
  93                         @Override
  94                         protected void extendsCredentialsBlock(Composite credentialsBlock, Locale selectedLocale,
  95                                         SelectionListener loginSelectionListener) {
  96                                 LoginEntryPoint.this.extendsCredentialsBlock(credentialsBlock, selectedLocale, loginSelectionListener);
  97                         }
  98
  99                 };
 100         }
 101
 102         /**
 103          * To be overridden. CmsLogin#createCredentialsBlock() should be called at
 104          * some point in order to create the credentials composite. In order to use
 105          * the default layout, call CmsLogin#defaultCreateContents() but <b>not</b>
 106          * CmsLogin#createContent(), since it would lead to a stack overflow.
 107          */
 108         protected void createLoginPage(Composite parent, CmsLogin login) {
 109                 login.defaultCreateContents(parent);
 110         }
 111
 112         protected void extendsCredentialsBlock(Composite credentialsBlock, Locale selectedLocale,
 113                         SelectionListener loginSelectionListener) {
 114
 115         }
 116
 117         @Override
 118         public void navigateTo(String state) {
 119                 // TODO Auto-generated method stub
 120
 121         }
 122
 123         @Override
 124         public void authChange(LoginContext loginContext) {
 125                 this.loginContext = loginContext;
 126         }
 127
 128         @Override
 129         public void logout() {
 130                 if (loginContext == null)
 131                         throw new CmsException("Login context should not bet null");
 132                 try {
 133                         loginContext.logout();
 134                 } catch (LoginException e) {
 135                         throw new CmsException("Cannot log out", e);
 136                 }
 137         }
 138
 139         @Override
 140         public void exception(Throwable e) {
 141                 // TODO Auto-generated method stub
 142
 143         }
 144
 145         @Override
 146         public LoginContext getLoginContext() {
 147                 return loginContext;
 148         }
 149
 150         @Override
 151         public CmsImageManager getImageManager() {
 152                 // TODO Auto-generated method stub
 153                 return null;
 154         }
 155
 156         @Override
 157         public UxContext getUxContext() {
 158                 return uxContext;
 159         }
 160 }