Analysis / deserialization of MTOM / XOP.NET data.

Question

How can I parse / deserialize the MTOM / XOP response I get from a web service using WCF? I have an answer on disk. I copied the answer below:

Date: Wed, 02 May 2012 09:38:57 GMT Server: Microsoft-IIS/6.0 P3P:CP="BUS CUR CONo FIN IVDo ONL OUR PHY SAMo TELo" X-Powered-By: ASP.NET X-AspNet-Version: 4.0.30319 X-WindowsLive-Hydra: H: BLU165-ds6 V: 16.3.133.328 D: 2012-03-29T02:31:31 X-Response-Time: 78.1245 X-TransactionID: d491414e-46fd-47b2-82ce-e9cea9f564aa;BLU165-ds6;16.3.133.328;2012-05-02 09:38:57 UTC;78.1245 ms Set-Cookie: HMDST=dGVhcG90ZG9tZYtZm3GzLm1r3f+/q8+gdzrAPYmy9kJ+SmDZuFmVgk3E983xNyeoTZkkdIr6t8y3P4V+vPzmytdaqqFwtI8vBuc=; domain=.mail.services.live.com; path=/ Cache-Control: no-cache Pragma: no-cache Expires: -1 Content-Type: application/xop+xml Content-Length: 6386 MIME-Version: 1.0 Content-Type: Multipart/Related;boundary=DeltaSync91ABCB4AF5D24B8F988B77ED7A19733D?MTOM; type="application/xop+xml"; start="< [e-mail] >"; --DeltaSync91ABCB4AF5D24B8F988B77ED7A19733D?MTOM content-transfer-encoding: binary content-type: application/xop+xml; charset=utf-8; type="application/xop+xml" content-id: < [e-mail] > <ItemOperations xmlns:xop="http://www.w3.org/2004/08/xop/include" xmlns:B="HMMAIL:" xmlns:D="HMSYNC:" xmlns="ItemOperations:"><Status>1</Status><Responses><Fetch><ServerId>E631966A-9439-11E1-8E7B-00215AD9A7B8</ServerId><Status>1</Status><Message><xop:Include href="cid: [e-mail] " /></Message></Fetch></Responses></ItemOperations> --DeltaSync91ABCB4AF5D24B8F988B77ED7A19733D?MTOM content-transfer-encoding: binary content-type: application/octet-stream content-id: < [e-mail] > ....Binary Content --DeltaSync91ABCB4AF5D24B8F988B77ED7A19733D?MTOM-- 

Any help is greatly appreciated.

Answer 1

You can deserialize the response using WCF classes, as I will show below. But before proceeding, this MTOM is invalid - the boundary parameter of the Content-Type header is invalid. Because it contains '?' the character to be specified (see MIME RFC , section 5.1, definition of token ).

Now, to deserialize it, you need to open the document using the MTOM reader, and XmlDictionaryReader.CreateMtomReader will give you just that. With the creation of this reader, you can pass it to the DataContractSerializer to deserialize the object. The code below shows how to do this.

  public class StackOverflow_10531128 { const string MTOM = @"MIME-Version: 1.0 Content-Type: Multipart/Related;boundary=DeltaSync91ABCB4AF5D24B8F988B77ED7A19733D?MTOM; type=""application/xop+xml""; start=""< [e-mail] >""; --DeltaSync91ABCB4AF5D24B8F988B77ED7A19733D?MTOM content-transfer-encoding: binary Content-Type: application/xop+xml; charset=utf-8; type=""application/xop+xml"" content-id: < [e-mail] > <ItemOperations xmlns:xop=""http://www.w3.org/2004/08/xop/include"" xmlns:B=""HMMAIL:"" xmlns:D=""HMSYNC:"" xmlns=""ItemOperations:""> <Status>1</Status> <Responses> <Fetch> <ServerId>E631966A-9439-11E1-8E7B-00215AD9A7B8</ServerId> <Status>1</Status> <Message><xop:Include href=""cid: [e-mail] "" /></Message> </Fetch> </Responses> </ItemOperations> --DeltaSync91ABCB4AF5D24B8F988B77ED7A19733D?MTOM content-transfer-encoding: binary Content-Type: application/octet-stream content-id: < [e-mail] > this is a binary content; it could be anything but for simplicity I'm using text --DeltaSync91ABCB4AF5D24B8F988B77ED7A19733D?MTOM--"; [DataContract(Name = "ItemOperations", Namespace = "ItemOperations:")] public class ItemOperations { [DataMember(Order = 1)] public int Status { get; set; } [DataMember(Order = 2)] public Responses Responses { get; set; } } [CollectionDataContract(Name = "Responses", Namespace = "ItemOperations:", ItemName = "Fetch")] public class Responses : List<Fetch> { } [DataContract(Name = "Fetch", Namespace = "ItemOperations:")] public class Fetch { [DataMember(Order = 1)] public Guid ServerId { get; set; } [DataMember(Order = 2)] public int Status { get; set; } [DataMember(Order = 3)] public byte[] Message { get; set; } } public static void Test() { MemoryStream ms; ItemOperations obj; DataContractSerializer dcs = new DataContractSerializer(typeof(ItemOperations)); string fixedMtom = MTOM.Replace( "Multipart/Related;boundary=DeltaSync91ABCB4AF5D24B8F988B77ED7A19733D?MTOM;", "Multipart/Related;boundary=\"DeltaSync91ABCB4AF5D24B8F988B77ED7A19733D?MTOM\";"); ms = new MemoryStream(Encoding.UTF8.GetBytes(fixedMtom)); XmlDictionaryReader reader = XmlDictionaryReader.CreateMtomReader(ms, Encoding.UTF8, XmlDictionaryReaderQuotas.Max); obj = (ItemOperations)dcs.ReadObject(reader); Console.WriteLine(obj.Status); Console.WriteLine(obj.Responses.Count); foreach (var resp in obj.Responses) { Console.WriteLine(" {0}", resp.ServerId); Console.WriteLine(" {0}", resp.Status); Console.WriteLine(" {0}", string.Join(" ", resp.Message.Select(b => string.Format("{0:X2}", (int)b)))); } } }