ASP.NET.in.a.Nutshell.Second.Edition [Electronic resources] نسخه متنی

This module, when loaded through the web.config
file (<authentication mode="Windows">),
provides Windows/IIS authentication. In this model, IIS authenticates
the user identity for the current web request using any supported
method (including Basic, Digest, or Integrated Windows), and then
passes that account to the ASP.NET application, which it uses to
access the resources it needs. The
WindowsAuthenticationModule uses a
System.Security.Principal.WindowsIdentity object
to hold user information received from IIS and constructs a
System.Security.Principal.WindowsPrincipal object
to provide information about group memberships. The
System.Security.Principal.WindowsPrincipal object
is attached to the application context and provided through the
System.Web.HttpContext.User property. This module
also provides a single event, Authenticate, which
you can access through the
WindowsAuthentication_OnAuthenticate event handler
in the global.asax file.

This type of authentication scheme is particularly useful in
corporate intranet scenarios, where IIS can be set to Integrated
Windows authentication and all users can access the application under
their network accounts.

public sealed class 
WindowsAuthenticationModule  : System.Web.IHttpModule {
// Public Constructors
public 
WindowsAuthenticationModule ( );
// Public Instance Methods
public void 
Dispose ( );                           // implements System.Web.IHttpModule
public void 
Init (System.Web.HttpApplication 
app ); // implements System.Web.IHttpModule
// Events
public event WindowsAuthenticationEventHandler 
Authenticate ;
}