Thread.CurrentPrincipal Eigenschaft

Definition

Namespace:

System.Threading

Assembly:

System.Threading.Thread.dll

Quelle:

Thread.cs

Ruft den aktuellen Prinzipal des Threads (für rollenbasierte Sicherheit) ab oder legt diesen fest.

public:
 static property System::Security::Principal::IPrincipal ^ CurrentPrincipal { System::Security::Principal::IPrincipal ^ get(); void set(System::Security::Principal::IPrincipal ^ value); };

public static System.Security.Principal.IPrincipal? CurrentPrincipal { get; set; }

static member CurrentPrincipal : System.Security.Principal.IPrincipal with get, set

Public Shared Property CurrentPrincipal As IPrincipal

Eigenschaftswert

IPrincipal

Ein IPrincipal-Wert, der den Sicherheitskontext darstellt.

Ausnahmen

SecurityException

Der Aufrufer verfügt nicht über die erforderliche Berechtigung zum Festlegen des Prinzipals.

Beispiele

Im folgenden Codebeispiel wird gezeigt, wie der Prinzipal eines Threads festgelegt und abgerufen wird.

using namespace System;
using namespace System::Security;
using namespace System::Security::Permissions;
using namespace System::Security::Principal;
using namespace System::Threading;

int main()
{
   array<String^>^rolesArray = {"managers","executives"};
   try
   {
      
      // Set the principal to a new generic principal.
      Thread::CurrentPrincipal = gcnew GenericPrincipal( gcnew GenericIdentity( "Bob","Passport" ),rolesArray );
   }
   catch ( SecurityException^ secureException ) 
   {
      Console::WriteLine( "{0}: Permission to set Principal "
      "is denied.", secureException->GetType()->Name );
   }

   IPrincipal^ threadPrincipal = Thread::CurrentPrincipal;
   Console::WriteLine( "Name: {0}\nIsAuthenticated: {1}"
   "\nAuthenticationType: {2}", threadPrincipal->Identity->Name, threadPrincipal->Identity->IsAuthenticated.ToString(), threadPrincipal->Identity->AuthenticationType );
}

using System;
using System.Security;
using System.Security.Permissions;
using System.Security.Principal;
using System.Threading;

class Principal
{
    static void Main()
    {
        string[] rolesArray = {"managers", "executives"};
        try
        {
            // Set the principal to a new generic principal.
            Thread.CurrentPrincipal = 
                new GenericPrincipal(new GenericIdentity(
                "Bob", "Passport"), rolesArray);
        }
        catch(SecurityException secureException)
        {
            Console.WriteLine("{0}: Permission to set Principal " +
                "is denied.", secureException.GetType().Name);
        }

        IPrincipal threadPrincipal = Thread.CurrentPrincipal;
        Console.WriteLine("Name: {0}\nIsAuthenticated: {1}" +
            "\nAuthenticationType: {2}", 
            threadPrincipal.Identity.Name, 
            threadPrincipal.Identity.IsAuthenticated,
            threadPrincipal.Identity.AuthenticationType);
    }
}

open System.Security
open System.Security.Principal
open System.Threading

let rolesArray = [| "managers"; "executives" |]

try
    // Set the principal to a new generic principal.
    Thread.CurrentPrincipal <- GenericPrincipal(GenericIdentity("Bob", "Passport"), rolesArray)
with :? SecurityException as secureException ->
    printfn $"{secureException.GetType().Name}: Permission to set Principal is denied."

let threadPrincipal = Thread.CurrentPrincipal

printfn $"Name: {threadPrincipal.Identity.Name}\nIsAuthenticated: {threadPrincipal.Identity.IsAuthenticated}\nAuthenticationType: {threadPrincipal.Identity.AuthenticationType}"

Option Explicit
Option Strict

Imports System.Security
Imports System.Security.Permissions
Imports System.Security.Principal
Imports System.Threading

Public Class Principal

    <MTAThread> _
    Shared Sub Main()
    
        Dim rolesArray As String() = {"managers", "executives"}
        Try
            ' Set the principal to a new generic principal.
            Thread.CurrentPrincipal = _
                New GenericPrincipal(New GenericIdentity( _
                "Bob", "Passport"), rolesArray)

        Catch secureException As SecurityException
            Console.WriteLine("{0}: Permission to set Principal " & _
                "is denied.", secureException.GetType().Name)
        End Try

        Dim threadPrincipal As IPrincipal = Thread.CurrentPrincipal
        Console.WriteLine( _
            "Name: {0}" & vbCrLf & "IsAuthenticated:" & _
            " {1}" & vbCrLf & "AuthenticationType: {2}", _
            threadPrincipal.Identity.Name, _
            threadPrincipal.Identity.IsAuthenticated, _
            threadPrincipal.Identity.AuthenticationType)
    
    End Sub
End Class