legacy/argeo-commons/org.argeo.cms.ui.workbench.rap/src/org/argeo/cms/ui/workbench/rap/AnonymousEntryPoint.java

   1 package org.argeo.cms.ui.workbench.rap;
   2
   3 import java.security.PrivilegedAction;
   4
   5 import javax.security.auth.Subject;
   6 import javax.security.auth.login.LoginContext;
   7 import javax.security.auth.login.LoginException;
   8
   9 import org.argeo.api.cms.CmsAuth;
  10 import org.argeo.api.cms.CmsLog;
  11 import org.argeo.cms.CmsException;
  12 import org.eclipse.rap.rwt.RWT;
  13 import org.eclipse.rap.rwt.application.EntryPoint;
  14 import org.eclipse.swt.widgets.Display;
  15 import org.eclipse.ui.PlatformUI;
  16
  17 /**
  18  * RAP entry point which authenticates the subject as anonymous, for public
  19  * unauthenticated access.
  20  */
  21 public class AnonymousEntryPoint implements EntryPoint {
  22         private final static CmsLog log = CmsLog.getLog(AnonymousEntryPoint.class);
  23
  24         /**
  25          * How many seconds to wait before invalidating the session if the user has
  26          * not yet logged in.
  27          */
  28         private Integer sessionTimeout = 5 * 60;
  29
  30         @Override
  31         public int createUI() {
  32                 RWT.getRequest().getSession().setMaxInactiveInterval(sessionTimeout);
  33
  34                 // if (log.isDebugEnabled())
  35                 // log.debug("Anonymous THREAD=" + Thread.currentThread().getId()
  36                 // + ", sessionStore=" + RWT.getSessionStore().getId());
  37
  38                 final Display display = PlatformUI.createDisplay();
  39                 Subject subject = new Subject();
  40
  41                 final LoginContext loginContext;
  42                 try {
  43                         loginContext = new LoginContext(CmsAuth.LOGIN_CONTEXT_ANONYMOUS,
  44                                         subject);
  45                         loginContext.login();
  46                 } catch (LoginException e1) {
  47                         throw new CmsException("Cannot initialize login context", e1);
  48                 }
  49
  50                 // identify after successful login
  51                 if (log.isDebugEnabled())
  52                         log.debug("Authenticated " + subject);
  53                 final String username = subject.getPrincipals().iterator().next()
  54                                 .getName();
  55
  56                 // Logout callback when the display is disposed
  57                 display.disposeExec(new Runnable() {
  58                         public void run() {
  59                                 log.debug("Display disposed");
  60                                 logout(loginContext, username);
  61                         }
  62                 });
  63
  64                 //
  65                 // RUN THE WORKBENCH
  66                 //
  67                 Integer returnCode = null;
  68                 try {
  69                         returnCode = Subject.doAs(subject, new PrivilegedAction<Integer>() {
  70                                 public Integer run() {
  71                                         RapWorkbenchAdvisor workbenchAdvisor = new RapWorkbenchAdvisor(
  72                                                         null);
  73                                         int result = PlatformUI.createAndRunWorkbench(display,
  74                                                         workbenchAdvisor);
  75                                         return new Integer(result);
  76                                 }
  77                         });
  78                         logout(loginContext, username);
  79                         if (log.isTraceEnabled())
  80                                 log.trace("Return code " + returnCode);
  81                 } finally {
  82                         display.dispose();
  83                 }
  84                 return 1;
  85         }
  86
  87         private void logout(LoginContext loginContext, String username) {
  88                 try {
  89                         loginContext.logout();
  90                         log.info("Logged out " + (username != null ? username : "")
  91                                         + " (THREAD=" + Thread.currentThread().getId() + ")");
  92                 } catch (LoginException e) {
  93                         log.error("Erorr when logging out", e);
  94                 }
  95         }
  96 }