package org.argeo.cms.e4.rap;
   
   import java.security.PrivilegedAction;
   
   import javax.security.auth.Subject;
   
   import org.eclipse.rap.e4.E4ApplicationConfig;
   import org.eclipse.rap.e4.E4EntryPointFactory;
   import org.eclipse.rap.rwt.RWT;
  import org.eclipse.rap.rwt.application.EntryPoint;
  import org.eclipse.rap.rwt.client.service.JavaScriptExecutor;
  
  public class CmsE4EntryPointFactory extends E4EntryPointFactory {
  	public final static String DEFAULT_LIFECYCLE_URI = "bundleclass://org.argeo.cms.e4.rap/org.argeo.cms.e4.rap.CmsLoginLifecycle";
  
  	public CmsE4EntryPointFactory(E4ApplicationConfig config) {
  		super(config);
  	}
  
  	public CmsE4EntryPointFactory(String e4Xmi, String lifeCycleUri) {
  		super(defaultConfig(e4Xmi, lifeCycleUri));
  	}
  
  	public CmsE4EntryPointFactory(String e4Xmi) {
  		this(e4Xmi, DEFAULT_LIFECYCLE_URI);
  	}
  
  	public static E4ApplicationConfig defaultConfig(String e4Xmi, String lifeCycleUri) {
  		E4ApplicationConfig config = new E4ApplicationConfig(e4Xmi, lifeCycleUri, null, null, false, true, true);
  		return config;
  	}
  
  	@Override
  	public EntryPoint create() {
  		EntryPoint ep = createEntryPoint();
  		EntryPoint authEp = new EntryPoint() {
  
  			@Override
  			public int createUI() {
  				Subject subject = new Subject();
  				return Subject.doAs(subject, new PrivilegedAction<Integer>() {
  
  					@Override
  					public Integer run() {
  						// SPNEGO
  						// HttpServletRequest request = RWT.getRequest();
  						// String authorization = request.getHeader(HEADER_AUTHORIZATION);
  						// if (authorization == null || !authorization.startsWith("Negotiate")) {
  						// HttpServletResponse response = RWT.getResponse();
  						// response.setStatus(401);
  						// response.setHeader(HEADER_WWW_AUTHENTICATE, "Negotiate");
  						// response.setDateHeader("Date", System.currentTimeMillis());
  						// response.setDateHeader("Expires", System.currentTimeMillis() + (24 * 60 * 60
  						// * 1000));
  						// response.setHeader("Accept-Ranges", "bytes");
  						// response.setHeader("Connection", "Keep-Alive");
  						// response.setHeader("Keep-Alive", "timeout=5, max=97");
  						// // response.setContentType("text/html; charset=UTF-8");
  						// }
  
  						JavaScriptExecutor jsExecutor = RWT.getClient().getService(JavaScriptExecutor.class);
  						Integer exitCode = ep.createUI();
  						jsExecutor.execute("location.reload()");
  						return exitCode;
  					}
  
  				});
  			}
  		};
  		return authEp;
  	}
  
  	protected EntryPoint createEntryPoint() {
  		return super.create();
  	}
  }