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AuthenticationFilter.javaAPI DocExample3147Thu Dec 15 20:49:48 GMT 2005com.oreilly.jent.servlets.filter

AuthenticationFilter

public class AuthenticationFilter extends Object implements Filter
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Fields Summary
private Hashtable
users
Constructors Summary
Methods Summary
public voiddestroy()

    // Code cleanup would be here
public voiddoFilter(javax.servlet.ServletRequest req, javax.servlet.ServletResponse res, javax.servlet.FilterChain chain)


    HttpServletRequest request = (HttpServletRequest)req;
    HttpSession sess = request.getSession(true);

    if(sess != null) {
      Boolean loggedIn = (Boolean)sess.getAttribute("enterprise.login");
      if (loggedIn != Boolean.TRUE) {
        String login_name = request.getParameter("login_name");
        String login_pass = request.getParameter("login_pass");
        if((login_name != null) && (login_pass != null))
          if(users.get(login_name).toString(  ).equals(login_pass)) {
            loggedIn = Boolean.TRUE;
            sess.setAttribute("enterprise.login", Boolean.TRUE);
            sess.setAttribute("enterprise.loginname", login_name);
          }
      }

      if (loggedIn == Boolean.TRUE) {
        chain.doFilter(req, res);
      }  else {
        request.setAttribute("originaluri", request.getRequestURI(  ));
        request.getRequestDispatcher("/login.jsp").forward(req, res);
      }
    }
public voidinit(javax.servlet.FilterConfig config)

     
      

    users = (Hashtable)config.getServletContext(  ).getAttribute(
                               "enterprise.users");
    if(users == null) {
       users = new Hashtable(5);
       users.put("test", "test");
    }