Thread.CurrentPrincipal プロパティ

.NET Framework クラス ライブラリ リファレンス

Thread.CurrentPrincipal プロパティ

ロールベースのセキュリティに関する、スレッドの現在のプリンシパルを取得または設定します。

名前空間: System.Threading
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

Public Shared Property CurrentPrincipal
 As IPrincipal

Visual Basic (使用法)

Dim value As IPrincipal

value = Thread.CurrentPrincipal

Thread.CurrentPrincipal = value

C#

public static IPrincipal CurrentPrincipal {
 get; set; }

C++

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

J#

/** @property */
public static IPrincipal get_CurrentPrincipal
 ()

/** @property */
public static void set_CurrentPrincipal
 (IPrincipal value)

JScript

public static function get
 CurrentPrincipal () : IPrincipal

public static function set
 CurrentPrincipal (value : IPrincipal)

プロパティ値
セキュリティ コンテキストを表す IPrincipal 値。

例外

例外の種類	条件
SecurityException	呼び出し元に、プリンシパルの設定に必要なアクセス許可がありません。

使用例

スレッドのプリンシパルを設定および取得する方法の例を次に示します。

Visual Basic

Option Explicit
Option Strict

Imports Microsoft.VisualBasic
Imports System
Imports System.Security
Imports System.Security.Permissions
Imports System.Security.Principal
Imports System.Threading

' Request permission to set thread principal.
<Assembly: SecurityPermissionAttribute( _
    SecurityAction.RequestOptional, ControlPrincipal := True)>

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

C#

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

// Request permission to set thread principal.
[assembly: SecurityPermissionAttribute(
    SecurityAction.RequestOptional, ControlPrincipal = true)]
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);
    }
}

C++

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

// Request permission to set thread principal.

[assembly:SecurityPermissionAttribute(
SecurityAction::RequestOptional,ControlPrincipal=true)];
[assembly:SecurityPermissionAttribute(
SecurityAction::RequestMinimum,UnmanagedCode=true)];
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
 );
}

J#

import System.*;
import System.Security.*;
import System.Security.Permissions.*;
import System.Security.Principal.*;
import System.Threading.*;
import System.Threading.Thread;
import System.Security.SecurityManager;

// Request permission to set thread principal.
/** @class.assembly SecurityPermissionAttribute(SecurityAction.RequestOptional
,
     ControlPrincipal = true)
 */

class Principal
{
    public static void main(String[]
 args)
    {
        String rolesArray[] = new String[] { "managers",
 "executives" };

        try {
            // Set the principal to a new generic principal.
            Thread.set_CurrentPrincipal(new GenericPrincipal
                (new GenericIdentity("Bob", "Passport"),
 rolesArray));
        }
        catch (SecurityException secureException) {
            Console.WriteLine("{0}: Permission to set Principal
 " +
                "is denied.", secureException.GetType().get_Name());
        }

        IPrincipal threadPrincipal = Thread.get_CurrentPrincipal();
        Console.WriteLine("Name: {0}\nIsAuthenticated: {1}" +
            "\nAuthenticationType: {2}",
            threadPrincipal.get_Identity().get_Name(),
            String.valueOf(threadPrincipal.get_Identity().get_IsAuthenticated()
            ),threadPrincipal.get_Identity().get_AuthenticationType());
    } //main
} //Principal

.NET Framework のセキュリティ

• SecurityPermission  (プリンシパル オブジェクトを操作するために必要なアクセス許可)。SecurityPermissionFlag.ControlPrincipal (関連する列挙体)

プラットフォーム

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0

参照

関連項目
Thread クラス
Thread メンバ
System.Threading 名前空間