BaseHttpModule.cs

public abstract class BaseHttpModule : IHttpModule
{
  public void Init(HttpApplication application)
  {
    application.BeginRequest += (sender, args) => 
      OnBeginRequest(new HttpContextWrapper(((HttpApplication)sender).Context));
  }
  
  public virtual void OnBeginRequest(HttpContextBase context)
  {    
  }
  
  public virtual void Dispose()
  {
  }
}