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POSystem.Net (HttpWebRequest) tracing without using files or app.config?
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  1. POSystem.Net (HttpWebRequest) tracing without using files or app.config?
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    copied!<p>I want to capture certain, but not all, HttpWebRequest traffic in my application for debugging purposes. It's a web service hosted by IIS.</p> <p>I have read <a href="http://msdn.microsoft.com/en-us/library/ty48b824(VS.80).aspx" rel="noreferrer">How to: Configure Network Tracing</a>. This works great, but I don't want to direct the trace to a file, due to possible permission problems on the file system, data sensitivity, etc. I would like to capture directly to a something in-memory that I can subsequently inspect or encrypt and email. Preferably, this would not involve any changes to the app.config file.</p> <p>I tried the following, but obviously I am missing a step to tie the TextWriterTraceListener into System.Net. How can I capture the System.Net traffic into my StringWriter?</p> <pre><code>StringWriter sw = new StringWriter(); TextWriterTraceListener myListener = new TextWriterTraceListener(sw); Trace.Listeners.Add(myListener); HttpWebRequest req = (HttpWebRequest) WebRequest.Create("http://www.microsoft.com"); HttpWebResponse resp = (HttpWebResponse) req.GetResponse(); Stream s = resp.GetResponseStream(); byte[] buf = new byte[4096]; while (s.Read(buf, 0, buf.Length) &gt; 0) ; s.Close(); myListener.Flush(); sw.Flush(); </code></pre> <p>Edit: Specifically, I want to do the equivalent of this at runtime, except that I don't want output to go to network.log, I want it to go to a string buffer I've set up for this purpose.</p> <pre><code>&lt;configuration&gt; &lt;system.diagnostics&gt; &lt;sources&gt; &lt;source name="System.Net.Sockets" tracemode="includehex"&gt; &lt;listeners&gt; &lt;add name="System.Net.Sockets" type="System.Diagnostics.TextWriterTraceListener" initializeData="network.log" /&gt; &lt;/listeners&gt; &lt;/source&gt; &lt;/sources&gt; &lt;switches&gt; &lt;add name="System.Net.Sockets" value="Verbose"/&gt; &lt;/switches&gt; &lt;trace autoflush="true" /&gt; &lt;/system.diagnostics&gt; &lt;/configuration&gt; </code></pre>
 

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