【Asp】Asp.net 基于Cookie简易的权限判断-net-Cookie-权限判断

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Asp.net 基于Cookie简易的权限判断

public class BasePage : System.Web.UI.Page
{
private string pageName;
public BasePage()
{
this.Page.PreLoad +=Page_Load;
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Uri r=this.Request.Url;
pageName=r.AbsolutePath;
if (NeedToCheck())
{
if (!HasAuthentication())
{
HttpContext.Current.Response.Redirect("NoAuthenticationPage.aspx");
}
}
}
}
private bool NeedToCheck()
{
if (pageName.Contains("NoAuthenticationPage.aspx") || pageName=="Login.aspx" )
{
return false;
}
return true;
}
private bool HasAuthentication()
{
//look into the config file or database,to see whether this page is in the allow accessing list of the role or not;
//the signature of the function is like this
//QueryInConfig(m_UserRole,pageName);
if (pageName.Contains("Default3.aspx") && UserRole=="2")
{
return false;
}
return true;
}
protected HttpCookie _RequestCookie;
protected HttpCookie _ResponseCookie;
private bool b_IsNewCookie=true;
public string UserRole
{
get
{
return GetCookieValue("UserRole");
}
set
{
SetCookieValue("UserRole", value);
}
}
public string UserName
{
get
{
return GetCookieValue("UserName");
}
set
{
SetCookieValue("UserName", value);
}
}
protected void SetCookieValue(string name, string value)
{
SetResponseCookie();
_ResponseCookie[name]=value;
}
private string GetCookieValue(string name)
{
SetReqeustCookie();
if (_RequestCookie !=null)
{
return _RequestCookie[name];
}
return null;
}
protected void SetReqeustCookie()
{
_RequestCookie=HttpContext.Current.Request.Cookies["Cookie_Name"];
}
protected void SetResponseCookie()
{
if (b_IsNewCookie)
{
HttpContext.Current.Response.Cookies.Remove("Cookie_Name");
_ResponseCookie=new HttpCookie("Cookie_Name");
DateTime dtNow=DateTime.Now;
TimeSpan tsMinute=new TimeSpan(0, 2, 0, 0);
_ResponseCookie.Expires=dtNow + tsMinute;
_ResponseCookie["UserRole"]=UserRole;
_ResponseCookie["UserName"]=UserName;
HttpContext.Current.Response.Cookies.Add(_ResponseCookie);
b_IsNewCookie=false;
}
}
}

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