security/eclipse/plugins/org.argeo.security.ui.rcp/src/main/java/org/argeo/security/ui/rcp/AbstractSecureApplication.java

   1 package org.argeo.security.ui.rcp;
   2
   3 import java.security.PrivilegedAction;
   4
   5 import javax.security.auth.Subject;
   6
   7 import org.apache.commons.logging.Log;
   8 import org.apache.commons.logging.LogFactory;
   9 import org.argeo.security.equinox.CurrentUser;
  10 import org.eclipse.core.runtime.IStatus;
  11 import org.eclipse.core.runtime.Status;
  12 import org.eclipse.equinox.app.IApplication;
  13 import org.eclipse.equinox.app.IApplicationContext;
  14 import org.eclipse.jface.dialogs.ErrorDialog;
  15 import org.eclipse.swt.widgets.Display;
  16 import org.eclipse.ui.IWorkbench;
  17 import org.eclipse.ui.PlatformUI;
  18 import org.eclipse.ui.application.WorkbenchAdvisor;
  19
  20 public abstract class AbstractSecureApplication implements IApplication {
  21         private static final Log log = LogFactory
  22                         .getLog(AbstractSecureApplication.class);
  23
  24         protected abstract WorkbenchAdvisor createWorkbenchAdvisor();
  25
  26         public Object start(IApplicationContext context) throws Exception {
  27
  28                 Integer returnCode = null;
  29                 Display display = PlatformUI.createDisplay();
  30
  31                 // Force login
  32                 String username = CurrentUser.getUsername();
  33                 if (log.isDebugEnabled())
  34                         log.debug("Logged in as " + username);
  35
  36                 try {
  37                         returnCode = (Integer) Subject.doAs(CurrentUser.getSubject(),
  38                                         getRunAction(display));
  39                         if (log.isDebugEnabled())
  40                                 log.debug("secure action completed");
  41                         CurrentUser.logout();
  42                         return processReturnCode(returnCode);
  43                 } catch (Exception e) {
  44                         // e.printStackTrace();
  45                         IStatus status = new Status(IStatus.ERROR,
  46                                         "org.argeo.security.rcp", "Login failed", e);
  47                         ErrorDialog.openError(null, "Error", "Login failed", status);
  48                         return returnCode;
  49                 } finally {
  50                         display.dispose();
  51                 }
  52         }
  53
  54         protected Integer processReturnCode(Integer returnCode) {
  55                 return returnCode;
  56         }
  57
  58         @SuppressWarnings("rawtypes")
  59         private PrivilegedAction getRunAction(final Display display) {
  60                 return new PrivilegedAction() {
  61
  62                         public Object run() {
  63                                 int result = createAndRunWorkbench(display);
  64                                 return new Integer(result);
  65                         }
  66                 };
  67         }
  68
  69         protected Integer createAndRunWorkbench(Display display) {
  70                 return PlatformUI.createAndRunWorkbench(display,
  71                                 createWorkbenchAdvisor());
  72         }
  73
  74         public void stop() {
  75                 final IWorkbench workbench;
  76                 try {
  77                         workbench = PlatformUI.getWorkbench();
  78                 } catch (Exception e) {
  79                         return;
  80                 }
  81                 if (workbench == null)
  82                         return;
  83                 final Display display = workbench.getDisplay();
  84                 if (display != null && !display.isDisposed())
  85                         display.syncExec(new Runnable() {
  86
  87                                 public void run() {
  88                                         if (!display.isDisposed())
  89                                                 workbench.close();
  90                                 }
  91                         });
  92
  93                 if (log.isDebugEnabled())
  94                         log.debug("workbench stopped");
  95                 String username = CurrentUser.getUsername();
  96                 if (log.isDebugEnabled())
  97                         log.debug("workbench stopped, logged in as " + username);
  98
  99         }
 100
 101 }