A workable IIS module to log session to file
2019-01-03
%systemroot%\Microsoft.NET\Framework64\v2.0.50727\csc.exe /target:library /out:IIS_MOD_REQDATA.dll /debug /d:TRACE /R:System.Web.dll IIS_MOD_REQDATA.cs
copy IIS_MOD_REQDATA.dll C:\TestMembershipProvider\bin\
using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.Diagnostics;
using System.Web.Security;
using System.Web.SessionState;
namespace IIS_MOD_REQDATA
{
public class IIS_MOD_REQDATA : IHttpModule
{
TraceSource tsStatus;
public void Init(HttpApplication application)
{
application.EndRequest += (new EventHandler(this.Application_EndRequest));
// TRACING
tsStatus = new TraceSource("tsStatus");
application.PostAcquireRequestState += new EventHandler(Application_PostAcquireRequestState);
application.PostMapRequestHandler += new EventHandler(Application_PostMapRequestHandler);
}
private void Application_EndRequest(Object source, EventArgs e)
{
HttpApplication application = (HttpApplication)source;
HttpContext context = application.Context;
tsStatus.TraceEvent(TraceEventType.Start, 0, "[REQDATA MODULE] START EndRequest");
// start writing out the request data
context.Response.Write("<hr>");
context.Response.Write("<b><font size=2 color=green>REQUEST HEADERS</font></b><br>");
context.Response.Write("<font size=2>");
context.Response.Write("METHOD : " + context.Request.HttpMethod + "<br>");
context.Response.Write("URL : " + context.Request.Url + "<br>");
context.Response.Write("QUERYSTRING : " + context.Request.QueryString + "<br>");
context.Response.Write("</font><br>");
tsStatus.TraceEvent(TraceEventType.Verbose, 0, "[REQDATA MODULE] done with Req Data, moving onto Response");
// now response data
context.Response.Write("<b><font size=2 color=blue>RESPONSE HEADERS</font></b><br>");
context.Response.Write("<font size=2>");
context.Response.Write("STATUS CODE : " + context.Response.StatusCode.ToString() + "." + context.Response.SubStatusCode.ToString() + "<br>");
context.Response.Write("CONTENT TYPE : " + context.Response.ContentType.ToString() + "<br>");
context.Response.Write("EXPIRES : " + context.Response.Expires.ToString() + "<br>");
context.Response.Write("</font><br>");
if (context.Response.StatusCode > 399)
{
tsStatus.TraceEvent(TraceEventType.Warning, 0, "[REQDATA MODULE] error status code detected");
}
tsStatus.TraceEvent(TraceEventType.Verbose, 0, "[REQDATA MODULE] done with Response Data");
// set cache policy on response so it's not cached.
context.Response.DisableKernelCache();
tsStatus.TraceEvent(TraceEventType.Verbose, 0, "[REQDATA MODULE] cache setting is (" + context.Response.Cache.ToString() + ")");
tsStatus.TraceEvent(TraceEventType.Stop, 0, "[REQDATA MODULE] STOP - EndRequest");
}
void Application_PostMapRequestHandler(object source, EventArgs e)
{
HttpApplication app = (HttpApplication)source;
if (app.Context.Handler is IReadOnlySessionState || app.Context.Handler is IRequiresSessionState) {
// no need to replace the current handler
return;
}
// swap the current handler
app.Context.Handler = new MyHttpHandler(app.Context.Handler);
}
void Application_PostAcquireRequestState(object source, EventArgs e)
{
HttpApplication app = (HttpApplication)source;
MyHttpHandler resourceHttpHandler = HttpContext.Current.Handler as MyHttpHandler;
if (resourceHttpHandler != null) {
// set the original handler back
HttpContext.Current.Handler = resourceHttpHandler.OriginalHandler;
}
// -> at this point session state should be available
Debug.Assert(app.Session != null, "it did not work :(");
using (System.IO.StreamWriter file=new System.IO.StreamWriter(@"C:\PeterLog.txt", true))
{
string username=null;
try{
username=app.Session["Key1"].ToString();
}catch{
//file.WriteLine(ex.Message);
}
file.WriteLine(app.Context.Request.Url+ " : "+username);
}
}
public class MyHttpHandler : IHttpHandler, IRequiresSessionState
{
internal readonly IHttpHandler OriginalHandler;
public MyHttpHandler(IHttpHandler originalHandler)
{
OriginalHandler = originalHandler;
}
public void ProcessRequest(HttpContext context)
{
// do not worry, ProcessRequest() will not be called, but let's be safe
throw new InvalidOperationException("MyHttpHandler cannot process requests.");
}
public bool IsReusable
{
// IsReusable must be set to false since class has a member!
get { return false; }
}
}
public void Dispose()
{
}
}
}