[Authorize]
public ActionResult Index()
标记的方式,可以实现所标记的ACTION必须是认证用户才能访问;
通过使用
[Authorize(Users
=
"
username
"
)]
的方式,可以实现所标记的ACTION必须是某个具体的用户才能访问,以上两种方式使用起来非常方便,在NeedDinner示例程序中已有具休的实现过程,
但是,我们在实际的应用中所使用的大都是基于角色(Roles)的认证方式,NeedDinner中却未给出,本文给出具体实现(基于 ASP.NET Forms验证)过程:
step 1
在完成UserName和Password认证后,向客户端写入认证Cookie
代码
FormsAuthenticationTicket authTicket = new FormsAuthenticationTicket(
1 ,
userName,
DateTime.Now,
DateTime.Now.AddMinutes( 20 ),
false ,
" admin " // 写入用户角色
);
string encryptedTicket = FormsAuthentication.Encrypt(authTicket);
System.Web.HttpCookie authCookie = new System.Web.HttpCookie(FormsAuthentication.FormsCookieName, encryptedTicket);
System.Web.HttpContext.Current.Response.Cookies.Add(authCookie);
step 2
在Global.asax.cs文件中加入以下代码,用于在用户登陆网站时读取Cookie
代码
protected
void
Application_AuthenticateRequest(Object sender, EventArgs e)
{
HttpCookie authCookie = Context.Request.Cookies[FormsAuthentication.FormsCookieName];
if (authCookie == null || authCookie.Value == "" )
{
return ;
}
FormsAuthenticationTicket authTicket = null ;
try
{
authTicket = FormsAuthentication.Decrypt(authCookie.Value);
}
catch
{
return ;
}
string [] roles = authTicket.UserData.Split( new char [] { ' ; ' });
if (Context.User != null )
{
Context.User = new System.Security.Principal.GenericPrincipal(Context.User.Identity, roles);
}
}
{
HttpCookie authCookie = Context.Request.Cookies[FormsAuthentication.FormsCookieName];
if (authCookie == null || authCookie.Value == "" )
{
return ;
}
FormsAuthenticationTicket authTicket = null ;
try
{
authTicket = FormsAuthentication.Decrypt(authCookie.Value);
}
catch
{
return ;
}
string [] roles = authTicket.UserData.Split( new char [] { ' ; ' });
if (Context.User != null )
{
Context.User = new System.Security.Principal.GenericPrincipal(Context.User.Identity, roles);
}
}
step 3
这样以来,就可以使用实现以下效果
[Authorize(Roles = " admin " )]
public ActionResult Index( int ? page)
非常方便!