HttpListener.AuthenticationSchemes 属性

定义

命名空间:

System.Net

程序集:

System.Net.HttpListener.dll

Source:

HttpListener.cs

获取或设置用于客户端身份验证的方案。

public:
 property System::Net::AuthenticationSchemes AuthenticationSchemes { System::Net::AuthenticationSchemes get(); void set(System::Net::AuthenticationSchemes value); };

public System.Net.AuthenticationSchemes AuthenticationSchemes { get; set; }

member this.AuthenticationSchemes : System.Net.AuthenticationSchemes with get, set

Public Property AuthenticationSchemes As AuthenticationSchemes

属性值

AuthenticationSchemes

指示如何对客户端进行身份验证的 AuthenticationSchemes 枚举值的按位组合。 默认值是 Anonymous。

例外

ObjectDisposedException

此对象已关闭。

示例

下面的代码示例演示如何使用 AuthenticationSchemes 属性指定身份验证方案。

public static void SimpleListenerWithUnsafeAuthentication(string[] prefixes)
{
    // URI prefixes are required,
    // for example "http://contoso.com:8080/index/".
    if (prefixes == null || prefixes.Length == 0)
      throw new ArgumentException("prefixes");
    // Set up a listener.
    HttpListener listener = new HttpListener();
    foreach (string s in prefixes)
    {
        listener.Prefixes.Add(s);
    }
    listener.Start();
    // Specify Negotiate as the authentication scheme.
    listener.AuthenticationSchemes = AuthenticationSchemes.Negotiate;
    // If NTLM is used, we will allow multiple requests on the same
    // connection to use the authentication information of first request.
    // This improves performance but does reduce the security of your
    // application.
    listener.UnsafeConnectionNtlmAuthentication = true;
    // This listener does not want to receive exceptions
    // that occur when sending the response to the client.
    listener.IgnoreWriteExceptions = true;
    Console.WriteLine("Listening...");
    // ... process requests here.

    listener.Close();
}

Public Shared Sub SimpleListenerWithUnsafeAuthentication(ByVal prefixes As String())
    ' URI prefixes are required,
    ' for example "http://contoso.com:8080/index/".
    If prefixes Is Nothing OrElse prefixes.Length = 0 Then Throw New ArgumentException("prefixes")
    ' Set up a listener.
    Dim listener As HttpListener = New HttpListener()

    For Each s As String In prefixes
        listener.Prefixes.Add(s)
    Next

    listener.Start()
    ' Specify Negotiate as the authentication scheme.
    listener.AuthenticationSchemes = AuthenticationSchemes.Negotiate
    ' If NTLM Is used, we will allow multiple requests on the same
    ' connection to use the authentication information of first request.
    ' This improves performance but does reduce the security of your 
    ' application. 
    listener.UnsafeConnectionNtlmAuthentication = True
    ' This listener does Not want to receive exceptions 
    ' that occur when sending the response to the client.
    listener.IgnoreWriteExceptions = True
    Console.WriteLine("Listening...")
    ' ... process requests here.

    listener.Close()
End Sub

注解

HttpListener使用指定的方案对所有传入请求进行身份验证。 仅当 成功对请求进行身份验证时， GetContextHttpListener 和 EndGetContext 方法才返回传入的客户端请求。

可以使用 属性查询已成功进行身份验证的客户端 HttpListenerContext.User 的标识。

如果希望 HttpListener 对象根据 (接收的请求的特征使用不同的身份验证机制，例如请求的 Url 或 UserHostName 属性) ，则必须实现选择身份验证方案的方法。 有关如何执行此操作的说明，请参阅 AuthenticationSchemeSelectorDelegate 属性文档。

注意

若要将此属性设置为启用 Digest、NTLM 或 Negotiate，需要 SecurityPermission、 ControlPrincipal。