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How to add a prefix to a WCF ServiceContract namespace

I am trying to implement UPnP MediaServer in WCF. I slowly get there, but now I hit a brick wall. I need to add a prefix to the ServiceContract namespace. Now I have the following:

[ServiceContract(Namespace = "urn:schemas-upnp-org:service:ContentDirectory:1")]
public interface  IContentDirectory
{
    [OperationContract(Action = "urn:schemas-upnp-org:service:ContentDirectory:1#Browse")]
    void Browse(string ObjectID, string BrowseFlag, string Filter, ulong StartingIndex, ulong RequestedCount, string SortCriteria, out string Result, out ulong NumberReturned, out ulong TotalMatches, out ulong UpdateID);
}

Listen to the right soapy messages. However, I need a soapy body to start with

<u:Browse xmlns:u="urn:schemas-upnp-org:service:ContentDirectory:1">

and WCF is now listening:

<Browse xmlns="urn:schemas-upnp-org:service:ContentDirectory:1">

How do I get a prefix? Does it matter? Or is there another reason why parameters are not passed to the browse method?

UPDATE Here is additional information: The following message is sent by the actual UPnP checkpoint. Parameters are not passed to the Browse method.

<s:Envelope s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
  <s:Header>
    <To s:mustUnderstand="1" xmlns="http://schemas.microsoft.com/ws/2005/05/addressing/none">http://XXXXX:8731/ContentDirectory</To>
    <Action s:mustUnderstand="1" xmlns="http://schemas.microsoft.com/ws/2005/05/addressing/none">urn:schemas-upnp-org:service:ContentDirectory:1#Browse</Action>
  </s:Header>
  <s:Body>
      <u:Browse xmlns:u="urn:schemas-upnp-org:service:ContentDirectory:1">
         <ObjectID>0</ObjectID>
         <BrowseFlag>BrowseDirectChildren</BrowseFlag>
         <Filter>*</Filter>
         <StartingIndex>0</StartingIndex>
         <RequestedCount>15</RequestedCount>
         <SortCriteria />
      </u:Browse>
   </s:Body>
</s:Envelope>

This is a request that is created by the WCF testing client. Now the parameters are passed to the Browse method:

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
  <s:Header>
    <To s:mustUnderstand="1" xmlns="http://schemas.microsoft.com/ws/2005/05/addressing/none">http://XXXXXX:8731/ContentDirectory</To>
    <Action s:mustUnderstand="1" xmlns="http://schemas.microsoft.com/ws/2005/05/addressing/none">urn:schemas-upnp-org:service:ContentDirectory:1#Browse</Action>
  </s:Header>
  <s:Body>
    <Browse xmlns="urn:schemas-upnp-org:service:ContentDirectory:1">
      <ObjectID>0</ObjectID>
      <BrowseFlag>BrowseMetadata</BrowseFlag>
      <Filter>*</Filter>
      <StartingIndex>0</StartingIndex>
      <RequestedCount>0</RequestedCount>
      <SortCriteria i:nil="true" xmlns:i="http://www.w3.org/2001/XMLSchema-instance" />
    </Browse>
  </s:Body>
</s:Envelope>
+3
2

, ( UPnP WCF), . Browse (UPnP) ( ") , (WCF TC) " urn: schemas-upnp-org: service: ContentDirectory: 1" - , , WCF, UPnP.

, , , - , , WCF, ( modulo prefixes) , UPnP. , , , .

public class StackOverflow_2495195
{
    [MessageContract(WrapperName="Browse", WrapperNamespace="urn:schemas-upnp-org:service:ContentDirectory:1", IsWrapped=true)]
    public class BrowseRequest
    {
        [MessageBodyMember(Namespace = "", Order = 0)]
        public string ObjectID;

        [MessageBodyMember(Namespace = "", Order = 1)]
        public string BrowseFlag;

        [MessageBodyMember(Namespace = "", Order = 2)]
        public string Filter;

        [MessageBodyMember(Namespace = "", Order = 3)]
        public ulong StartingIndex;

        [MessageBodyMember(Namespace = "", Order = 4)]
        public ulong RequestedCount;

        [MessageBodyMember(Namespace = "", Order = 5)]
        public string SortCriteria;
    }

    [MessageContract(WrapperName = "BrowseResponse", WrapperNamespace = "urn:schemas-upnp-org:service:ContentDirectory:1", IsWrapped = true)]
    public class BrowseResponse
    {
        [MessageBodyMember(Namespace = "", Order = 0)]
        public string Result;

        [MessageBodyMember(Namespace = "", Order = 1)]
        public ulong NumberReturned;

        [MessageBodyMember(Namespace = "", Order = 2)]
        public ulong TotalMatches;

        [MessageBodyMember(Namespace = "", Order = 3)]
        public ulong UpdateID;
    }

    [ServiceContract(Namespace = "urn:schemas-upnp-org:service:ContentDirectory:1")]
    public interface IContentDirectory
    {
        [OperationContract(Action = "urn:schemas-upnp-org:service:ContentDirectory:1#Browse")]
        //void Browse(string ObjectID, string BrowseFlag, string Filter, ulong StartingIndex, ulong RequestedCount, string SortCriteria, out string Result, out ulong NumberReturned, out ulong TotalMatches, out ulong UpdateID);
        BrowseResponse Browse(BrowseRequest request);
    }
    public class Service : IContentDirectory
    {
        //public void Browse(string ObjectID, string BrowseFlag, string Filter, ulong StartingIndex, ulong RequestedCount, string SortCriteria, out string Result, out ulong NumberReturned, out ulong TotalMatches, out ulong UpdateID)
        //{
        //    Result = null;
        //    NumberReturned = 0;
        //    TotalMatches = 0;
        //    UpdateID = 0;
        //}
        public BrowseResponse Browse(BrowseRequest request)
        {
            return new BrowseResponse { NumberReturned = 0, Result = null, TotalMatches = 0, UpdateID = 0 };
        }
    }
    static Binding GetBinding()
    {
        return new CustomBinding(
            new TextMessageEncodingBindingElement(MessageVersion.Soap11WSAddressing10, Encoding.UTF8),
            new HttpTransportBindingElement());
    }
    public static void Test()
    {
        string baseAddress = "http://" + Environment.MachineName + ":8000/Service";
        ServiceHost host = new ServiceHost(typeof(Service), new Uri(baseAddress));
        host.AddServiceEndpoint(typeof(IContentDirectory), GetBinding(), "");
        host.Description.Behaviors.Add(new ServiceMetadataBehavior { HttpGetEnabled = true });
        host.Open();
        Console.WriteLine("Host opened");

        ChannelFactory<IContentDirectory> factory = new ChannelFactory<IContentDirectory>(GetBinding(), new EndpointAddress(baseAddress));
        IContentDirectory proxy = factory.CreateChannel();
        //string result;
        //ulong ul1, ul2, ul3;
        //proxy.Browse(null, null, null, 0, 0, null, out result, out ul1, out ul2, out ul3);
        proxy.Browse(new BrowseRequest { BrowseFlag = null, Filter = null, ObjectID = null, RequestedCount = 0, SortCriteria = null, StartingIndex = 0 });

        ((IClientChannel)proxy).Close();
        factory.Close();

        Console.Write("Press ENTER to close the host");
        Console.ReadLine();
        host.Close();
    }
}

, WCF, XML, . , , WCF , , WCF. , . http://blogs.msdn.com/b/carlosfigueira/archive/2010/06/13/changing-prefixes-in-xml-responses.aspx - , , .

+4

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, , . "xmlns", , XML. , , XML.

+2

Source: https://habr.com/ru/post/1738086/

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