从WindowsIdentity和Thread.CurrentPrincipal检索WindowsPrincipal有什么区别？

Question

我试图弄清楚为什么基于属性的安全性不能像我在WCF中所期望的那样工作,我怀疑它可能与以下内容有关:

AppDomain.CurrentDomain.SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal);

var identity = new WindowsIdentity("ksarfo");
var principal = new WindowsPrincipal(identity);
Console.WriteLine("\nChecking whether current user [" + identity.Name + "] is member of [" + groupName + "]");
Console.WriteLine(principal.IsInRole(groupName)); // returns true

principal = (WindowsPrincipal)Thread.CurrentPrincipal;
identity = (WindowsIdentity) principal.Identity;
Console.WriteLine("\nChecking whether current user [" + identity.Name + "] is member of [" + groupName + "]");
Console.WriteLine(principal.IsInRole(groupName)); // returns false

我不明白为什么函数调用的结果不同:

principal.IsInRole(groupName)

为了完整起见,代码实际失败的点在这里:

PrincipalPermission(SecurityAction.Demand, Role = "PortfolioManager")]

帮助赞赏.

Answer 1

也许是因为这不是同一类.

看看MSDN:

• Thread.CurrentPrincipal中
  • 的IPrincipal
    • IsInRole
• WindowsPrincipal
  • IsInRole

所以,如果有不同的类,也许有不同的实现.

编辑:

我试过这段代码:

public class InGroup
{
    public string Name { get; set; }
    public bool Current { get; set; }
    public bool Fixe { get; set; }
    public bool Thread { get; set; }
}

WindowsIdentity current = System.Security.Principal.WindowsIdentity.GetCurrent();
WindowsPrincipal principalcurrent = new WindowsPrincipal(current);

WindowsIdentity fixe = new WindowsIdentity("JW2031");
WindowsPrincipal principalFixe = new WindowsPrincipal(fixe);

IPrincipal principalThread = System.Threading.Thread.CurrentPrincipal;

List<InGroup> ingroups = new List<InGroup>();
foreach (IdentityReference item in current.Groups)
{
    IdentityReference reference = item.Translate(typeof(NTAccount));
    Console.WriteLine("{0}\t{1}\t{2}\t{3}",
        reference.Value,
        principalcurrent.IsInRole(reference.Value),
        principalFixe.IsInRole(reference.Value),
        principalThread.IsInRole(reference.Value));

    ingroups.Add(new InGroup()
    {
        Name = reference.Value,
        Current = principalcurrent.IsInRole(reference.Value),
        Fixe = principalFixe.IsInRole(reference.Value),
        Thread = principalThread.IsInRole(reference.Value)
    });
}
foreach (IdentityReference item in fixe.Groups)
{
    IdentityReference reference = item.Translate(typeof(NTAccount));
    if (ingroups.FindIndex(g => g.Name == reference.Value) == -1)
    {
        ingroups.Add(new InGroup()
        {
            Name = reference.Value,
            Current = principalcurrent.IsInRole(reference.Value),
            Fixe = principalFixe.IsInRole(reference.Value),
            Thread = principalThread.IsInRole(reference.Value)
        });
        Console.WriteLine("{0}\t{1}\t{2}\t{3}",
            reference.Value,
            principalcurrent.IsInRole(reference.Value),
            principalFixe.IsInRole(reference.Value),
            principalThread.IsInRole(reference.Value));
    }
}

这是结果

正如你所看到的,我没有相同的组有不同的方式.所以(因为我是我本地机器的管理员)我认为WindowsIdentity.GetCurrent将从AD获取用户并且WindowsPrincipal(WindowsIdentity(""))将从本地机器获取用户.

在我的webapp中,我获得了最低的授权(我认为).但是,我没有解释consoleapp ...

这只是假设,但这是连贯的.