HttpListener.AuthenticationSchemes 屬性

定義

取得或設定用來驗證用戶端的配置。Gets or sets the scheme used to authenticate clients.

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

屬性值

AuthenticationSchemes 列舉值的位元組合,指定用戶端的驗證方式。A bitwise combination of AuthenticationSchemes enumeration values that indicates how clients are to be authenticated. 預設值為 AnonymousThe default value is Anonymous.

例外狀況

此物件已關閉。This object has been closed.

範例

下列程式碼範例將示範如何使用 AuthenticationSchemes 屬性來指定驗證配置。The following code example demonstrates using the AuthenticationSchemes property to specify an authentication scheme.

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

備註

HttpListener 會使用指定的配置來驗證所有傳入的要求。The HttpListener uses the specified scheme to authenticate all incoming requests. 只有在 HttpListener 成功驗證要求時,GetContextEndGetContext 方法才會傳回傳入的用戶端要求。The GetContext and EndGetContext methods return an incoming client request only if the HttpListener successfully authenticates the request.

您可以使用 HttpListenerContext.User 屬性來查閱已成功驗證之用戶端的身分識別。You can interrogate the identity of a successfully authenticated client by using the HttpListenerContext.User property.

如果您想要 HttpListener 物件根據所接收的要求特性(例如,要求的 UrlUserHostName 屬性)來使用不同的驗證機制,您必須執行可選擇驗證配置的方法。If you want an HttpListener object to use different authentication mechanisms based on characteristics of the requests it receives (for example, the request's Url or UserHostName property), you must implement a method that chooses the authentication scheme. 如需有關如何執行此動作的指示,請參閱 AuthenticationSchemeSelectorDelegate 屬性檔。For instructions about how to do this, see the AuthenticationSchemeSelectorDelegate property documentation.

注意

若要將此屬性設定為啟用摘要式、NTLM 或 Negotiate,需要 SecurityPermissionControlPrincipalTo set this property to enable Digest, NTLM, or Negotiate requires the SecurityPermission, ControlPrincipal.

適用於