OperationBehaviorAttribute.Impersonation 屬性

參考

定義

命名空間:: System.ServiceModel

組件:: System.ServiceModel.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

取得或設定值，指出作業支援的呼叫者模擬等級。

public:
 property System::ServiceModel::ImpersonationOption Impersonation { System::ServiceModel::ImpersonationOption get(); void set(System::ServiceModel::ImpersonationOption value); };

public System.ServiceModel.ImpersonationOption Impersonation { get; set; }

member this.Impersonation : System.ServiceModel.ImpersonationOption with get, set

Public Property Impersonation As ImpersonationOption

屬性值

ImpersonationOption

其中一個 ImpersonationOption 值。預設值為 NotAllowed。

範例

下列服務程式碼範例在 Impersonation 屬性設定為 Required 之後，將需要進行模擬。

using System;
using System.Collections.Generic;
using System.ServiceModel;
using System.Threading;

namespace Microsoft.WCF.Documentation
{
  [ServiceContract(
    Name="SampleHello",
    Namespace="http://microsoft.wcf.documentation"
  )]
  public interface IHello
  {
    [OperationContract]
    string Hello(string greeting);
  }

  public class HelloService : IHello
  {

    public HelloService()
    {
      Console.WriteLine("Service object created: " + this.GetHashCode().ToString());
    }

    ~HelloService()
    {
      Console.WriteLine("Service object destroyed: " + this.GetHashCode().ToString());
    }

    [OperationBehavior(Impersonation=ImpersonationOption.Required)]
    public string Hello(string greeting)
    {
      Console.WriteLine("Called by: " + Thread.CurrentPrincipal.Identity.Name);
      Console.WriteLine("IsAuthenticated: " + Thread.CurrentPrincipal.Identity.IsAuthenticated.ToString());
      Console.WriteLine("AuthenticationType: " + Thread.CurrentPrincipal.Identity.AuthenticationType.ToString());

      Console.WriteLine("Caller sent: " + greeting);
      Console.WriteLine("Sending back: Hi, " + Thread.CurrentPrincipal.Identity.Name);
      return "Hi, " + Thread.CurrentPrincipal.Identity.Name;
    }
  }
}

Imports System.ServiceModel
Imports System.Threading

Namespace Microsoft.WCF.Documentation
  <ServiceContract(Name:="SampleHello", Namespace:="http://microsoft.wcf.documentation")> _
  Public Interface IHello
    <OperationContract> _
    Function Hello(ByVal greeting As String) As String
  End Interface

  Public Class HelloService
      Implements IHello

    Public Sub New()
      Console.WriteLine("Service object created: " & Me.GetHashCode().ToString())
    End Sub

    Protected Overrides Sub Finalize()
      Console.WriteLine("Service object destroyed: " & Me.GetHashCode().ToString())
    End Sub

    <OperationBehavior(Impersonation:=ImpersonationOption.Required)> _
    Public Function Hello(ByVal greeting As String) As String Implements IHello.Hello
      Console.WriteLine("Called by: " & Thread.CurrentPrincipal.Identity.Name)
      Console.WriteLine("IsAuthenticated: " & Thread.CurrentPrincipal.Identity.IsAuthenticated.ToString())
      Console.WriteLine("AuthenticationType: " & Thread.CurrentPrincipal.Identity.AuthenticationType.ToString())

      Console.WriteLine("Caller sent: " & greeting)
      Console.WriteLine("Sending back: Hi, " & Thread.CurrentPrincipal.Identity.Name)
      Return "Hi, " & Thread.CurrentPrincipal.Identity.Name
    End Function
  End Class
End Namespace

下列程式碼範例將示範先使用 ClientCredentials 屬性來設定用戶端應用程式認證，再叫用需要使用這些認證來進行模擬的作業。

using System;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.Security.Principal;
using System.Threading;

namespace Microsoft.WCF.Documentation
{
  public class Client
  {
    public void Run()
    {
      // Picks up configuration from the config file.
      SampleHelloClient wcfClient = new SampleHelloClient();
      try
      {
        // Set the client credentials to permit impersonation. You can do this programmatically or in the configuration file.
        wcfClient.ClientCredentials.Windows.AllowedImpersonationLevel = TokenImpersonationLevel.Impersonation;

        // Make calls using the proxy.
        Console.ForegroundColor = ConsoleColor.White;
        Console.WriteLine("Enter a greeting to send and press ENTER: ");
        Console.Write(">>> ");
        Console.ForegroundColor = ConsoleColor.Green;
        string greeting = Console.ReadLine();
        Console.ForegroundColor = ConsoleColor.White;
        Console.WriteLine("Called service with: \r\n\t" + greeting);
        Console.WriteLine("Service returned: " + wcfClient.Hello(greeting));
        Console.ForegroundColor = ConsoleColor.Blue;
        Console.Write("Press ");
        Console.ForegroundColor = ConsoleColor.Red;
        Console.Write("ENTER");
        Console.ForegroundColor = ConsoleColor.Blue;
        Console.Write(" to exit...");
        Console.ReadLine();
        wcfClient.Close();
      }
      catch (TimeoutException timeProblem)
      {
        Console.WriteLine("The service operation timed out. " + timeProblem.Message);
        wcfClient.Abort();
        Console.Read();
      }
      catch (CommunicationException commProblem)
      {
        Console.WriteLine("There was a communication problem. " + commProblem.Message);
        wcfClient.Abort();
        Console.Read();
      }
    }
    public static void Main()
    {
      Client client = new Client();
      client.Run();
    }
  }
}

Imports System.ServiceModel
Imports System.ServiceModel.Channels
Imports System.Security.Principal
Imports System.Threading

Namespace Microsoft.WCF.Documentation
  Public Class Client
    Public Sub Run()
      ' Picks up configuration from the config file.
      Dim wcfClient As New SampleHelloClient()
      Try
        ' Set the client credentials to permit impersonation. You can do this programmatically or in the configuration file.
        wcfClient.ClientCredentials.Windows.AllowedImpersonationLevel = TokenImpersonationLevel.Impersonation

        ' Make calls using the proxy.
        Console.ForegroundColor = ConsoleColor.White
        Console.WriteLine("Enter a greeting to send and press ENTER: ")
        Console.Write(">>> ")
        Console.ForegroundColor = ConsoleColor.Green
                Dim greeting = Console.ReadLine()
        Console.ForegroundColor = ConsoleColor.White
        Console.WriteLine("Called service with: " & vbCrLf & vbTab & greeting)
        Console.WriteLine("Service returned: " & wcfClient.Hello(greeting))
        Console.ForegroundColor = ConsoleColor.Blue
        Console.Write("Press ")
        Console.ForegroundColor = ConsoleColor.Red
        Console.Write("ENTER")
        Console.ForegroundColor = ConsoleColor.Blue
        Console.Write(" to exit...")
        Console.ReadLine()
        wcfClient.Close()
      Catch timeProblem As TimeoutException
        Console.WriteLine("The service operation timed out. " & timeProblem.Message)
        wcfClient.Abort()
        Console.Read()
      Catch commProblem As CommunicationException
        Console.WriteLine("There was a communication problem. " & commProblem.Message)
        wcfClient.Abort()
        Console.Read()
      End Try
    End Sub
    Public Shared Sub Main()
      Dim client As New Client()
      client.Run()
    End Sub
  End Class
End Namespace

備註

使用 Impersonation 屬性 (搭配支援模擬的繫結組態)，即可讓指定的方法 (即含有 Impersonation 屬性已設為 Allowed 或 Required 之標記的方法) 由呼叫者的身分識別加以執行。如需詳細資訊，包括搭配屬性一 Allowed 起使用 ServiceAuthorizationBehavior.ImpersonateCallerForAllOperations 時如何執行模擬，請參閱委派和模擬和如何：模擬服務上的用戶端。

注意

當透過程式設計方式來新增可執行模擬服務端點時，您必須使用其中一個 AddServiceEndpoint 方法或是 ContractDescription.GetContract 方法，將合約適當地載入新的 System.ServiceModel.Description.ServiceDescription 物件中。使用組態檔時並不需要額外步驟。

有些特定的案例可能不支援模擬。如需詳細資訊，請參閱不支援的案例。

適用於

共用方式為

OperationBehaviorAttribute.Impersonation 屬性

定義

屬性值

範例

備註

適用於

其他資源