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POSOAP Extension Stream Empty After Serialization
 

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    <p>I have had this problem for the last day. I have created a SOAP Extension following the MSDN articles and a load of blog posts but I just can't get it to work. Ok Some code:</p> <pre><code>public class EncryptionExtension : SoapExtension { Stream _stream; public override object GetInitializer(Type serviceType) { return typeof(EncryptionExtension); } public override object GetInitializer(LogicalMethodInfo methodInfo, SoapExtensionAttribute attribute) { return attribute; } public override void Initialize(object initializer) { } public override void ProcessMessage(SoapMessage message) { switch (message.Stage) { case SoapMessageStage.BeforeSerialize: break; case SoapMessageStage.AfterSerialize: break; case SoapMessageStage.BeforeDeserialize: break; case SoapMessageStage.AfterDeserialize: break; default: throw new Exception("invalid stage"); } } public override Stream ChainStream(Stream stream) { _stream = stream; return stream; } } </code></pre> <p>There is also an attribute class:</p> <pre><code>[AttributeUsage(AttributeTargets.Method)] public class EncryptionExtensionAttribute : SoapExtensionAttribute { public override Type ExtensionType { get { return typeof(EncryptionExtension); } } public override int Priority { get; set; } } </code></pre> <p>So when the message comes in I can see the inbound SOAP request when I debug at the BeforeDeserialization and AfterDeserialization, which is great. My web service method is then called. Which is simply:</p> <pre><code>[WebMethod()] [EncryptionExtension] public string HelloWorld() { return "Hello world"; } </code></pre> <p>The process then hops back into my SoapExtension. Putting break points at BeforeSerialization and AfterSerialization I see that the outbound stream contains nothing. I am not surprised that it is empty on the BeforeSerialization but i am surprised that it is empty at AfterSerialization. This creates a problem because I need to get hold of the outbound stream so I can encrypt it. </p> <p>Can someone tell me why the outbound stream is empty? I have followed this MSDN article which indiciates it shouldn't be <a href="http://msdn.microsoft.com/en-us/library/ms972410.aspx" rel="nofollow noreferrer">http://msdn.microsoft.com/en-us/library/ms972410.aspx</a>. Am I missing some configuration or something else?</p>
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    1. USMichael Edwards
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