Dictionary/src/java/org/thdl/lex/GuestFilter.java

111 lines
2.5 KiB
Java

package org.thdl.lex;
import java.io.IOException;
import java.util.Enumeration;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.thdl.users.*;
/**
* Description of the Class
*
* @author travis
* @created October 9, 2003
*/
public class GuestFilter implements Filter
{
//attributes
private String loginPage;
private UserSessionManager sessionMgr;
//accessors
/**
* Sets the loginPage attribute of the GuestFilter object
*
* @param loginPage The new loginPage value
*/
public void setLoginPage( String loginPage )
{
this.loginPage = loginPage;
}
/**
* Gets the loginPage attribute of the GuestFilter object
*
* @return The loginPage value
*/
public String getLoginPage()
{
return loginPage;
}
//contract methods
/**
* Description of the Method
*
* @param config Description of the Parameter
* @exception ServletException Description of the Exception
*/
public void init( FilterConfig config ) throws ServletException
{
}
/**
* Description of the Method
*
* @param request Description of the Parameter
* @param response Description of the Parameter
* @param chain Description of the Parameter
* @exception IOException Description of the Exception
* @exception ServletException Description of the Exception
*/
public void doFilter( ServletRequest request, ServletResponse response, FilterChain chain ) throws IOException, ServletException
{
if ( request instanceof HttpServletRequest && response instanceof HttpServletResponse )
{
HttpServletRequest req = (HttpServletRequest) request;
Visit visit = UserSessionManager.getInstance().getVisit( req.getSession( true ) );
ThdlUser user = visit.getUser();
if ( null == user )
{
try
{
user = new LexUser();
}
catch ( Exception e )
{
throw new ServletException( e );
}
user.setRoles( "guest" );
visit.setUser( user );
visit.setDisplayMode( "full" );
}
chain.doFilter( request, response );
}
else
{
throw new ServletException( "Filter only applicable to HTTP and HTTPS requests" );
}
}
/**
* Description of the Method
*/
public void destroy() { }
//helper methods
}