using System;
using System.Web.SessionState;
using System.Web;

/// <summary>
/// Summary description for LoggedInCheckerModule
/// </summary>
public class LoggedInCheckerModule : IHttpModule, IRequiresSessionState
{
    #region IHttpModule Members

    public void Dispose()
    {
    }

    //public void Init(HttpApplication context)
    public void Init(HttpApplication app)
    {
        app.PreRequestHandlerExecute += new EventHandler(app_PreRequestHandlerExecute);
    }

    void app_PreRequestHandlerExecute(object sender, EventArgs e)
    {
        try
        {
            object username = null;
            string request = HttpContext.Current.Request.CurrentExecutionFilePath;
            try { username = HttpContext.Current.Session["username"]; }
            catch { }

            if (!request.ToLower().EndsWith(@"/default.aspx") &&
                        !request.ToLower().EndsWith("stylesheet.css") &&
                        !request.ToLower().EndsWith("topbanner_01.gif"))
            {
                if (username == null)
                {
                    HttpContext.Current.Response.Redirect("Default.aspx");

                }

            }
        }
        catch (Exception ex)
        {
            HttpContext.Current.Response.Redirect("Default.aspx");
        }
    }

    #endregion
}