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c# - 强制使用 mustunderstand = 1 的 SOAP header ，即使调用 beforesendrequest 方法也是如此

转载 作者：行者123 更新时间：2023-11-30 22:57:30 30 4
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我从 NVMS 下载了一个 C# 实现示例，以了解如何实现他们的 Web 服务。它使用 SOAP 请求来调用不同的服务。在源代码中，有一个实现 IEndpointBehavior 和 IClientMessageInspector 的内部类，在 BeforeSendRequest 中他们清除了 SOAP header ，但从我得到的响应来看，最终请求仍然有 header 。我尝试了在 SOAPUI 的控制台中打印的两个请求(有和没有 header )并且无 header 请求有效，而另一个给我的消息与我在 C# 应用程序本身中得到的消息相同。

这是类(class):

internal class CustomMessageInspector : IEndpointBehavior, IClientMessageInspector
{
    public void AddBindingParameters(ServiceEndpoint endpoint, BindingParameterCollection bindingParameters)
    {
    }

    public void ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime)
    {
        clientRuntime.MessageInspectors.Add(this);
    }

    public void ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher)
    {
    }

    public void Validate(ServiceEndpoint endpoint)
    {
    }

    /*public void BeforeSendReply(ref Message reply, object correlationState)
    {
        reply.Headers.Clear();
    }*/

    //add using directive Message = System.ServiceModel.Channels.Message;
    public void AfterReceiveReply(ref Message reply, object correlationState)
    {
        // WORKAROUND for WCF-Exception "The MessageHeader is already understood" 
        // (Note: The message still gets validated)
        reply.Headers.Clear();
        Console.WriteLine("received Response:");
        Console.WriteLine("{0}\r\n", reply);
    }

    /// <summary>
    /// Shows the sent message with and without SOAP-Header
    /// </summary>
    /// <param name="request"></param>
    /// <param name="channel"></param>
    /// <returns></returns>
    public object BeforeSendRequest(ref Message request, IClientChannel channel)
    {
        // Fait la même chose que le clear, mais ne fonctione pas non plus...
        /*request.Headers.ReplyTo = null;
        request.Headers.Action = null;
        request.Headers.MessageId = null;*/
        Console.WriteLine("original Request:");
        Console.WriteLine("{0}\r\n", request);
        // Ne semble pas fonctionner, la requête est envoyée avec les headers...
        request.Headers.Clear();

        Console.WriteLine("without Header Request:");
        Console.WriteLine("{0}\r\n", request);

        return null;
    }
}

“request.Headers.Clear();”线应该在这里工作。请求参数通过引用传递，因此它应该清除源对象中的 header 。但这是我得到的结果:

received Response:
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
  <s:Header xmlns:s="http://www.w3.org/2003/05/soap-envelope" />
  <soap:Body>
    <soap:Fault>
      <soap:Code>
        <soap:Value>soap:MustUnderstand</soap:Value>
      </soap:Code>
      <soap:Reason>
        <soap:Text xml:lang="en">MustUnderstand headers: [{http://www.w3.org/2005/08/addressing}To] are not understood.</soap:Text>
      </soap:Reason>
    </soap:Fault>
  </soap:Body>
</soap:Envelope>

这是 2 个请求(带和不带 header ，由 beforesendrequest 方法打印):

original Request:
<s:Envelope xmlns:a="http://www.w3.org/2005/08/addressing" xmlns:s="http://www.w3.org/2003/05/soap-envelope">
  <s:Header>
    <a:Action s:mustUnderstand="1">ns:G110RequestMessage</a:Action>
    <a:MessageID>urn:uuid:405c0e93-f39d-4d8b-bef8-72cf82f88203</a:MessageID>
    <a:ReplyTo>
      <a:Address>http://www.w3.org/2005/08/addressing/anonymous</a:Address>
    </a:ReplyTo>
  </s:Header>
  <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <G110Request xmlns="urn:wsdltypes.nmvs.eu:v3.0">
      <Header xmlns="urn:types.nmvs.eu:v3.0">
        <Auth>
          <ClientLoginId>ABC</ClientLoginId>
          <UserId>test123</UserId>
          <Password>123456</Password>
        </Auth>
        <UserSoftware d5p1:name="Test Soft" d5p1:supplier="Comp Any" d5p1:version="V2" xmlns:d5p1="urn:types.nmvs.eu:v3.0" />
        <Transaction>
          <ClientTrxId>7775559966aaa</ClientTrxId>
          <Language>eng</Language>
        </Transaction>
      </Header>
      <Body xmlns="urn:types.nmvs.eu:v3.0">
        <Product>
          <ProductCode d6p1:scheme="GTIN" xmlns:d6p1="urn:types.nmvs.eu:v3.0">PK001C854A8EE536949</ProductCode>
          <Batch>
            <Id>TESTA1596337CF</Id>
            <ExpDate>231130</ExpDate>
          </Batch>
        </Product>
        <Pack d5p1:sn="PK001C854A8EE536949" xmlns:d5p1="urn:types.nmvs.eu:v3.0" />
      </Body>
    </G110Request>
  </s:Body>
</s:Envelope>

without Header Request:
<s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
  <s:Header />
  <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <G110Request xmlns="urn:wsdltypes.nmvs.eu:v3.0">
      <Header xmlns="urn:types.nmvs.eu:v3.0">
        <Auth>
          <ClientLoginId>ABC</ClientLoginId>
          <UserId>test123</UserId>
          <Password>123456</Password>
        </Auth>
        <UserSoftware d5p1:name="Test Soft" d5p1:supplier="Comp Any" d5p1:version="V2" xmlns:d5p1="urn:types.nmvs.eu:v3.0" />
        <Transaction>
          <ClientTrxId>7775559966aaa</ClientTrxId>
          <Language>eng</Language>
        </Transaction>
      </Header>
      <Body xmlns="urn:types.nmvs.eu:v3.0">
        <Product>
          <ProductCode d6p1:scheme="GTIN" xmlns:d6p1="urn:types.nmvs.eu:v3.0">PK001C854A8EE536949</ProductCode>
          <Batch>
            <Id>TESTA1596337CF</Id>
            <ExpDate>231130</ExpDate>
          </Batch>
        </Product>
        <Pack d5p1:sn="PK001C854A8EE536949" xmlns:d5p1="urn:types.nmvs.eu:v3.0" />
      </Body>
    </G110Request>
  </s:Body>
</s:Envelope>

我试图更改 mustUnderstand 属性，但找不到更改位置。

最佳答案

好吧，经过一天多的搜索，我找到了解决方案。事实上，Nicolas Giannone 在这里提供了所有必要的代码 WSHttpBinding in .NetStandard or .NET core下面是来自 NMVS 的 C# 示例的 SinglePackPing 函数，经过修改以与沙箱和 V3 API 一起使用。 

public static Boolean SinglePackPing( MyConfig myConfig, String pingString )
{
    Boolean ok = false;

    string endPoint = myConfig.SinglePackServicesEndPoint;

    //Defines a secure binding with certificate authentication
    WSHttpBinding binding = new WSHttpBinding();
    binding.Security.Mode = SecurityMode.Transport;
    binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Certificate;

    // create a new binding based on the existing binding
    var customTransportSecurityBinding = new CustomBinding( binding );
    // locate the TextMessageEncodingBindingElement - that's the party guilty of the inclusion of the "To"
    var ele = customTransportSecurityBinding.Elements.FirstOrDefault( x=>x is TextMessageEncodingBindingElement );
    if( ele != null )
    {
        // and replace it with a version with no addressing
        // replace {Soap12 (http://www.w3.org/2003/05/soap-envelope) Addressing10 (http://www.w3.org/2005/08/addressing)}
        //    with {Soap12 (http://www.w3.org/2003/05/soap-envelope) AddressingNone (http://schemas.microsoft.com/ws/2005/05/addressing/none)}
        int index = customTransportSecurityBinding.Elements.IndexOf( ele );
        var textBindingElement = new TextMessageEncodingBindingElement
        {
            MessageVersion = MessageVersion.CreateVersion(EnvelopeVersion.Soap12, AddressingVersion.None)
        };
        customTransportSecurityBinding.Elements[index] = textBindingElement;
    }

    //Creates ServiceClient, attach transport-binding, Endpoint and the loaded certificate
    using( SinglePackServicesClient service = new SinglePackServicesClient( customTransportSecurityBinding, new EndpointAddress( endPoint ) ) )
    {
        using( X509Certificate2 cert = new X509Certificate2( myConfig.CertificateFilePath, myConfig.PrivateKeyPassword, X509KeyStorageFlags.PersistKeySet ) )
        {

            //Creates ServiceClient, attach transport-binding, Endpoint and the loaded certificate          
            service.ClientCredentials.ClientCertificate.Certificate = cert;
            service.Endpoint.EndpointBehaviors.Add( new CustomMessageInspector() );
            var bindingTest = service.Endpoint.Binding;

            //Creates PingRequest and set the ping Input
            SinglePackPingRequest ping = new SinglePackPingRequest();
            ping.Input = pingString;

            //Creates PingResponse, result of the request. Displays the response
            SinglePackPingResponse pingResponse = service.PingSinglePack(ping);

            ok = pingResponse.Output == pingString;

            //Displays the response. If the request is successful, the output is equal to the input
            Console.WriteLine( pingResponse.Output );
        }
    }

    return ok;
}

希望对你有帮助。让我知道你的进展情况。

关于c# - 强制使用 mustunderstand = 1 的 SOAP header ，即使调用 beforesendrequest 方法也是如此，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/53605807/

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