asp.net ihttpmodule template User Login Code instance

ASP tutorial. NET IHttpModule Template user Login Code instance

void Application_acquirerequeststate (Object source, EventArgs e)
{
HttpApplication application = (HttpApplication) source;

User user = (user) application.context.session["user"]; Get user
if (user = null)
{
Application.context.server.transfer ("WebForm1.aspx");
String requesturl = Application.request.url.tostring ();
String requestpage = requesturl.substring (Requesturl.lastindexof ('/') + 1);

If the requested page is not a login page, it is just redirected to the login page.

                if (requestpage!=) Login.aspx ")
                   //Application.server.transfer ("ihttphandlertext/login/login.aspx");
                 Application.response.redirect ("login/login.aspx");
           }
            Else
             {               
                Application.response.write (String.Format) ("Welcome!") {0}! ", User.Name));

}
}

%>

Creating a custom HTTP Module

IHttpModule interface
Provides module initialization and disposition events to the implementation class.

Namespaces: system.web
Assembly: system.web (in System.Web.dll)

Grammar
public interface IHttpModule

public interface IHttpModule

public class Helloworldmodule:ihttpmodule
{
Public HelloWorldModule ()
{
}

public string ModuleName
{
get {return "HelloWorldModule";}
}

   //In the INIT function, register for HttpApplication
   //events by adding yo ur handlers.
    public void init (HttpApplication application)
    {
   & nbsp;    application.beginrequest + =
             (new EventHandler (This.application_beginrequest));
        application.endrequest + =
             (new EventHandler (This.application_endrequest));
   }

    private void Application_BeginRequest (object source,
          EventArgs e)
    {
   //Create HttpApplication and HttpContext objec TS to access
   /Request and Response properties.
        HttpApplication application = (HttpApplication) source;
        HttpContext context = Application.context;
        context.response.write ("
            helloworldmodule:beginning of Request
            </font>    }

private void Application_EndRequest (Object source, EventArgs e)
{
HttpApplication application = (HttpApplication) source;
HttpContext context = Application.context;
Context.Response.Write ("Helloworldmodule:end of request</font>}

public void Dispose ()
{
}
}