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.NET Forum / ASP.NET / General / June 2007logging all HTTP requests
Hi, I am wondering if there is any way to log the HTTP traffic on an IIS server (including headers but preferably the body as well), either at the IIS or asp.net level I know I could write my own isapi dll or .net filter, but I was rather hoping someone else has already done it. I'm sure it's quite a common requirement Andy > Hi, > > I am wondering if there is any way to log the HTTP traffic on an IIS server > (including headers What about IIS log? >> Hi, >> [quoted text clipped - 3 lines] > > What about IIS log? do you mean the standard log file which appears automatically in the windows/system32 (WTF !?!) directory?. Yes, this logs some information but I need access to at lest all the HTTP headers in both directions and preferably the body too > I am wondering if there is any way to log the HTTP traffic on an IIS > server (including headers but preferably the body as well), either at [quoted text clipped - 3 lines] > hoping someone else has already done it. I'm sure it's quite a common > requirement Wireshark (formerly Ethereal)? Andrew Hello Andy, I think that you need to implement HttpModule which will just log all request to the desired location Start from here http://www.15seconds.com/issue/020417.htm --- WBR, Michael Nemtsev [.NET/C# MVP]. My blog: http://spaces.live.com/laflour Team blog: http://devkids.blogspot.com/ "The greatest danger for most of us is not that our aim is too high and we miss it, but that it is too low and we reach it" (c) Michelangelo AF> Hi, AF> AF> I am wondering if there is any way to log the HTTP traffic on an IIS AF> server (including headers but preferably the body as well), either AF> at the IIS or asp.net level AF> AF> I know I could write my own isapi dll or .net filter, but I was AF> rather hoping someone else has already done it. I'm sure it's quite AF> a common requirement AF> AF> Andy AF> HTTPModule is only invoked once request is handed off to ASP.NET ISAPI extension: http.sys -> IIS pipeline -> determine extension -> ASP.NET ISAPI extension -> ASP.NET pipeline Requests for static files, for example, are handled by IIS Static file handler, not ASP.NET, so HTTPModule would never be invoked (unless you map all file extensions to ASP.NET) ISAPI filter (or lower level tool, e.g. a packet capture tool) is probably the only way. Cheers Ken  SignatureMy IIS Blog: www.adOpenStatic.com/cs/blogs/ken > Hello Andy, > [quoted text clipped - 20 lines] > AF> AF> Andy > AF> Hello Ken, hmmm.. What about IIS7? The same ISAPI stuff? --- WBR, Michael Nemtsev [.NET/C# MVP]. My blog: http://spaces.live.com/laflour Team blog: http://devkids.blogspot.com/ "The greatest danger for most of us is not that our aim is too high and we miss it, but that it is too low and we reach it" (c) Michelangelo KS> HTTPModule is only invoked once request is handed off to ASP.NET KS> ISAPI extension: KS> KS> http.sys -> IIS pipeline -> determine extension -> ASP.NET ISAPI KS> extension -> ASP.NET pipeline KS> KS> Requests for static files, for example, are handled by IIS Static KS> file handler, not ASP.NET, so HTTPModule would never be invoked KS> (unless you map all file extensions to ASP.NET) KS> KS> ISAPI filter (or lower level tool, e.g. a packet capture tool) is KS> probably the only way. KS> KS> Cheers KS> Ken KS> "Michael Nemtsev" <nemtsev@msn.com> wrote in message KS> news:a279a63a3f646f8c97723d97cb3f6@msnews.microsoft.com... KS> >> Hello Andy, >> [quoted text clipped - 23 lines] >> AF> AF> Andy >> AF> Products like TeaLeaf do what was originally asked and exist. If you are looking for a free solution, I don't know of any. For the theoretically inclined: IIS6 Request Processing Details: http://blogs.msdn.com/david.wang/archive/2005/10/14/HOWTO_IIS_6_Request_Processi ng_Basics_Part_1.aspx IIS6 solutions involve any combination of the following techniques: - How to read request entity body - http://blogs.msdn.com/david.wang/archive/2006/05/10/HOWTO-Access-POST-form-data- with-ISAPI.aspx - ISAPI Filter reading ALL_RAW ServerVariable after SF_NOTIFY_AUTH_COMPLETE event to retrieve effective request headers - ISAPI Filter listening to SF_NOTIFY_SEND_RAW_DATA to capture response stream. Kills performance by disabling platform advantages like TransmitFile for StaticFiles and kernel response cache for Dynamic Files. IIS7 solutions - Existing IIS6 solution works with same caveats - Native code Module listening on READ_ENTITY and SEND_ENTITY to buffer - Existing HttpModule and HttpHandler techniques can be applied to any/ all resources on a per-app basis (CANNOT configure one codebase to run globally for any/all requests - read this for why - http://blogs.msdn.com/david.wang/archive/2005/09/13/Why-Global-Managed-Modules-a re-Disallowed-in-IIS7.aspx ) //David http://w3-4u.blogspot.com http://blogs.msdn.com/David.Wang // > Hello Ken, > [quoted text clipped - 57 lines] > > - Show quoted text - Thanks for all the replies I have read up a bit about the asp.net pipeline and, as I am currently only interested in asp.net requests, I think IHttpModule will do it for me. I was just hoping that someone had already invented this so I wouldn't have to write it myself, but it doesn't look like it's available off the shelf. I would think it's a common requirement. I have previously tried ethereal and the other obvious alternative which is a proxy with logging. these are just a bit more cumbersome to use than having logging built into the web server. Andy > HTTPModule is only invoked once request is handed off to ASP.NET ISAPI > extension: [quoted text clipped - 36 lines] >> AF> AF> Andy >> AF> Hello Andy, I'd recommend this article http://msdn.microsoft.com/msdnmag/issues/02/08/HTTPFilters/default.aspx to my previous post --- WBR, Michael Nemtsev [.NET/C# MVP]. My blog: http://spaces.live.com/laflour Team blog: http://devkids.blogspot.com/ "The greatest danger for most of us is not that our aim is too high and we miss it, but that it is too low and we reach it" (c) Michelangelo AF> Hi, AF> AF> I am wondering if there is any way to log the HTTP traffic on an IIS AF> server (including headers but preferably the body as well), either AF> at the IIS or asp.net level AF> AF> I know I could write my own isapi dll or .net filter, but I was AF> rather hoping someone else has already done it. I'm sure it's quite AF> a common requirement AF> AF> Andy AF> Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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