使用 WSDualHttpBinding 在 WCF 服务之间共享 windows 身份

Question

我在 IIS 7 中分别托管了两个 WCF 服务。第一个服务可从外部调用，并使用 WebHttpBinding 和 windows 身份验证。第二个服务仅由第一个服务调用，使用 WsDualHttpBinding.

当调用第一个服务时，我可以从 ServiceSecurityContext.Current.WindowsIdentity.Name 中获取用户的 windows 名称。在第二个服务中，这不起作用并且 ServiceSecurityContext.Current.WindowsIdentity.Name 只是 IIS APPPOOL\DefaultAppPool.

我将 WsDualHttpBinding 配置为使用 windows 身份验证，但这没有帮助。这是服务器端配置：

<wsDualHttpBinding>
  <binding name="internalHttpBinding">
    <security mode="Message">
      <message clientCredentialType="Windows"/>
    </security>
  </binding>
</wsDualHttpBinding>

下面是第一个服务中与第二个服务建立通信的代码：

private WSDualHttpBinding binding = new WSDualHttpBinding();
private ChannelFactory<IMyService> factory;
public IMyService Contract { get; set; }
public MyServiceCallback Callback { get; set; }

public MyService(Uri uri)
{
    EndpointAddress address = new EndpointAddress(uri);
    Callback = new MyServiceCallback();
    var instanceContext = new InstanceContext(Callback);

    binding.Security.Mode = WSDualHttpSecurityMode.Message;
    binding.Security.Message.ClientCredentialType = MessageCredentialType.Windows;

    factory = new DuplexChannelFactory<IMyService>(instanceContext, binding, address);
    factory.Credentials.Windows.AllowedImpersonationLevel = TokenImpersonationLevel.Impersonation;
    factory.Credentials.Windows.ClientCredential = CredentialCache.DefaultNetworkCredentials;
    Contract = factory.CreateChannel();

    // Call operations on Contract
}

如何配置第一个服务以将用户身份传递给第二个服务？

Answer 1

这似乎是传递身份验证的问题。首先，您需要处于 Active Directory 环境中。必须使用 Kerberos 进行身份验证，NTLM 将不起作用。您可以使用 klist 来检查： https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/klist

另见 https://blogs.msdn.microsoft.com/besidethepoint/2010/05/08/double-hop-authentication-why-ntlm-fails-and-kerberos-works/ 寻求解释。

可能这篇 SO 文章可以提供帮助：

还有这个： https://docs.microsoft.com/en-us/dotnet/framework/wcf/feature-details/delegation-and-impersonation-with-wcf

Answer 2

服务器端启用模拟且客户端已设置windows凭据后，

ServiceReference1.ServiceClient client = new ServiceReference1.ServiceClient();
            client.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;
            client.ClientCredentials.Windows.ClientCredential.UserName = "Test";
            client.ClientCredentials.Windows.ClientCredential.Password = "123456";

我们可以使用以下代码检索运行 Windows 帐户。

if (ServiceSecurityContext.Current.WindowsIdentity.ImpersonationLevel == TokenImpersonationLevel.Impersonation ||
    ServiceSecurityContext.Current.WindowsIdentity.ImpersonationLevel == TokenImpersonationLevel.Delegation)
{
    using (ServiceSecurityContext.Current.WindowsIdentity.Impersonate())
    {
        Console.WriteLine("Impersonating the caller imperatively");
        Console.WriteLine("\t\tThread Identity            :{0}",
    WindowsIdentity.GetCurrent().Name);
        Console.WriteLine("\t\tThread Identity level  :{0}",
             WindowsIdentity.GetCurrent().ImpersonationLevel);
        Console.WriteLine("\t\thToken                     :{0}",
             WindowsIdentity.GetCurrent().Token.ToString());
    }
}

请参考下面的例子
https://docs.microsoft.com/en-us/dotnet/framework/wcf/samples/impersonating-the-client
https://docs.microsoft.com/en-us/dotnet/framework/wcf/feature-details/delegation-and-impersonation-with-wcf
如果有什么我可以帮忙的，请随时告诉我。

使用 WSDualHttpBinding 在 WCF 服务之间共享 windows 身份

Share windows identity between WCF services with WSDualHttpBinding

c#

wcf

windows-authentication

wsdualhttpbinding