如何从 cookie ASPXANONYMOUS 获取 AnonymousID？

发布于 2024-08-25 15:51:10 字数 278 浏览 9 评论 0原文

如果我查看我的 cookievalue .ASPXANONYMOUS，它是一个字符串，即

WZnX-rXHygEkAAAAOTFhZjE5YTctZmEzZi00MTMwLWEwNTAtYjYwMzI0N2M0NTY4gQUsRlThiJWAjBgmBnpeIba7eGo1

值 Request.AnonymousID 是一个 Guid。

如何从 ASPXANONYMOUS 转到 AnonymousID ？

我需要它来调试 FormsAuthentication 的一些问题。

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罪歌 2024-09-01 15:51:10

是的，匿名 ID 就是 GUID。 cookie 字符串是包含 id 和其他数据的加密值：

[Serializable]
internal class AnonymousIdData
{
    internal string AnonymousId;
    internal DateTime ExpireDate;

    internal AnonymousIdData(string id, DateTime dt);
}

默认情况下，匿名 cookie 的有效期为 90 天，并且每次访问都会刷新。

当Request.IsAuthenticated==false时，可以将Request.AnonymousID视为请求用户名。

请参阅 AnonymousIdentificationModule

更新：
作为对评论的回应，是的，您可以解码该值，但为什么呢？

string aId = Request.AnonymousID;

string anonCookieValue = Request.Cookies[".ASPXANONYMOUS"].Value;
MethodInfo method = typeof(AnonymousIdentificationModule).GetMethod("GetDecodedValue", BindingFlags.Static | BindingFlags.NonPublic);
object anonymousIdData = method.Invoke(null, new object[] { anonCookieValue });
var field = anonymousIdData.GetType().GetField("AnonymousId", BindingFlags.Instance | BindingFlags.NonPublic);
string anonymousId = (string) field.GetValue(anonymousIdData);
field = anonymousIdData.GetType().GetField("ExpireDate", BindingFlags.Instance | BindingFlags.NonPublic);
DateTime expired = (DateTime) field.GetValue(anonymousIdData);

// why? just use Request.AnonymousID    
Debug.Assert(aId == anonymousId);

Yes, an anonymous id is a GUID. The cookie string is an encrypted value containing the id and other data:

[Serializable]
internal class AnonymousIdData
{
    internal string AnonymousId;
    internal DateTime ExpireDate;

    internal AnonymousIdData(string id, DateTime dt);
}

By default, anonymous cookies are valid for 90 days and are refreshed every visit.

You can treat Request.AnonymousID as the request username when Request.IsAuthenticated==false.

see AnonymousIdentificationModule

UPDATE:
In response to a comment, yes, you can decode the value, but why?

string aId = Request.AnonymousID;

string anonCookieValue = Request.Cookies[".ASPXANONYMOUS"].Value;
MethodInfo method = typeof(AnonymousIdentificationModule).GetMethod("GetDecodedValue", BindingFlags.Static | BindingFlags.NonPublic);
object anonymousIdData = method.Invoke(null, new object[] { anonCookieValue });
var field = anonymousIdData.GetType().GetField("AnonymousId", BindingFlags.Instance | BindingFlags.NonPublic);
string anonymousId = (string) field.GetValue(anonymousIdData);
field = anonymousIdData.GetType().GetField("ExpireDate", BindingFlags.Instance | BindingFlags.NonPublic);
DateTime expired = (DateTime) field.GetValue(anonymousIdData);

// why? just use Request.AnonymousID    
Debug.Assert(aId == anonymousId);

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