Log user in HttpModule : HTTP Handlers « Development « ASP.NET Tutorial

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2. Development
3. HTTP Handlers

using System;
using System.Web;
using System.Diagnostics;


public class LogUserModule : IHttpModule
{
  public void Init(HttpApplication httpApp)
  {
    httpApp.AuthenticateRequest += new EventHandler(OnAuthentication);
  }

  private void OnAuthentication(object sender, EventArgs a)
  {
    string name = HttpContext.Current.User.Identity.Name;

    EventLog log = new EventLog();
    log.Source = "Log User Module";
    log.WriteEntry(name + " was authenticated.");
  }

  public void Dispose(){ }
}