Asp.net 基于Cookie简易的权限判断

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写入Cookie页面,创建cookie后,设置cookie属性,并添加到Response.Cookies中读取cookie,利用cookie的名字或索引从Request.Cookies中取得改写Cookie,先创建一个同名的cookie,读取Request中同名的cookie,把读取cookie的属性值付给新的对象,加入到Response.Cookies中创建一个BasePage页面,其他的页面继承自这个页面,把权限判断的代码有单个页面的Page_Load转移到BasePage的PreLoad中,下面是BasePage的主要代码

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;
}
}
}

到此这篇关于Asp.net 基于Cookie简易的权限判断就介绍到这了。青春是气贯长虹,勇锐盖过怯懦,进取压倒苟安;如此锐气,弱冠后生有之,耳顺之年,则亦多见,年岁有如并非垂老,理想丢弃,方堕暮年。更多相关Asp.net 基于Cookie简易的权限判断内容请查看相关栏目,小编编辑不易,再次感谢大家的支持!

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