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POReading a Stream object without consuming it
 

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  1. POReading a Stream object without consuming it
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    <p>I'm using XML-RPC.NET (from <a href="http://www.xml-rpc.net/" rel="nofollow">http://www.xml-rpc.net/</a>) and the HttpListener method of listening for XML-RPC communication on a specific network port and responding to it.</p> <p>The body of a request that comes in is accessible through the <code>HttpListenerContextInstance.Request.InputStream</code> Stream object:</p> <pre><code>HttpListener hlListener = new HttpListener(); HttpListenerContext hlcContext = hlListener.GetContext(); // hlcContext.Request.InputStream contains what I want </code></pre> <p>The Stream can be accessed from <code>hlcContext.Request.InputStream</code> but this Stream is not seekable so I can't read it/display it and then seek back to the beginning of it so that the XML-RPC.NET library can use it as it needs to. Once it's read, it's consumed and can't be re-read.</p> <p>I understand that one way of handling this situation would be to convert it from a Stream into a MemoryStream which does support seeking, however, I don't know of a way to do this so that XML-RPC.NET continues on using the MemoryStream instead of the Stream. Just copying the Stream to a MemoryStream seems to consume the Stream making it unusable past that point:</p> <pre><code>// hlcContext.Request.InputStream is currently filled MemoryStream msInput = new MemoryStream(); hlcContext.Request.InputStream.CopyTo(msInput); byte[] byteInput = msInput.ToArray(); // hlcContext.Request.InputStream is now empty and XML-RPC.NET can no longer use it :( </code></pre> <p>How can I read from the Stream so that I can store it in a String and have the Stream continue to work with XML-RPC.NET after that point?</p>
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    1. COHow are you providing the stream to XML-RPC.NET? I don't see that in your example code.
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      1. USRoger Lipscombe
    2. COThe Stream is created by the XML-RPC.NET library somehow/somewhere whenever the website is accessed (http://localhost/DoSomething).
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    3. COI haven't got time to look through the code, but assuming `HttpListener` is an XML RPC type, then you might be able to subclass it and change how `GetContext()` is implemented to inject the behaviour you need.
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      1. POReading a Stream object without consuming it
      1. USAndras Zoltan
 

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