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.apache.commons.logging.Log;
  10 import org.apache.commons.logging.LogFactory;
  11 import org.argeo.api.NodeConstants;
  12 import org.argeo.cms.CmsException;
  13 import org.eclipse.rap.rwt.RWT;
  14 import org.eclipse.rap.rwt.application.EntryPoint;
  15 import org.eclipse.swt.widgets.Display;
  16 import org.eclipse.ui.PlatformUI;
  17
  18 /**
  19  * RAP entry point which authenticates the subject as anonymous, for public
  20  * unauthenticated access.
  21  */
  22 public class AnonymousEntryPoint implements EntryPoint {
  23         private final static Log log = LogFactory.getLog(AnonymousEntryPoint.class);
  24
  25         /**
  26          * How many seconds to wait before invalidating the session if the user has
  27          * not yet logged in.
  28          */
  29         private Integer sessionTimeout = 5 * 60;
  30
  31         @Override
  32         public int createUI() {
  33                 RWT.getRequest().getSession().setMaxInactiveInterval(sessionTimeout);
  34
  35                 // if (log.isDebugEnabled())
  36                 // log.debug("Anonymous THREAD=" + Thread.currentThread().getId()
  37                 // + ", sessionStore=" + RWT.getSessionStore().getId());
  38
  39                 final Display display = PlatformUI.createDisplay();
  40                 Subject subject = new Subject();
  41
  42                 final LoginContext loginContext;
  43                 try {
  44                         loginContext = new LoginContext(NodeConstants.LOGIN_CONTEXT_ANONYMOUS,
  45                                         subject);
  46                         loginContext.login();
  47                 } catch (LoginException e1) {
  48                         throw new CmsException("Cannot initialize login context", e1);
  49                 }
  50
  51                 // identify after successful login
  52                 if (log.isDebugEnabled())
  53                         log.debug("Authenticated " + subject);
  54                 final String username = subject.getPrincipals().iterator().next()
  55                                 .getName();
  56
  57                 // Logout callback when the display is disposed
  58                 display.disposeExec(new Runnable() {
  59                         public void run() {
  60                                 log.debug("Display disposed");
  61                                 logout(loginContext, username);
  62                         }
  63                 });
  64
  65                 //
  66                 // RUN THE WORKBENCH
  67                 //
  68                 Integer returnCode = null;
  69                 try {
  70                         returnCode = Subject.doAs(subject, new PrivilegedAction<Integer>() {
  71                                 public Integer run() {
  72                                         RapWorkbenchAdvisor workbenchAdvisor = new RapWorkbenchAdvisor(
  73                                                         null);
  74                                         int result = PlatformUI.createAndRunWorkbench(display,
  75                                                         workbenchAdvisor);
  76                                         return new Integer(result);
  77                                 }
  78                         });
  79                         logout(loginContext, username);
  80                         if (log.isTraceEnabled())
  81                                 log.trace("Return code " + returnCode);
  82                 } finally {
  83                         display.dispose();
  84                 }
  85                 return 1;
  86         }
  87
  88         private void logout(LoginContext loginContext, String username) {
  89                 try {
  90                         loginContext.logout();
  91                         log.info("Logged out " + (username != null ? username : "")
  92                                         + " (THREAD=" + Thread.currentThread().getId() + ")");
  93                 } catch (LoginException e) {
  94                         log.error("Erorr when logging out", e);
  95                 }
  96         }
  97 }