Logging request length using IHttpModule

Question

I've made an IHttpModule that logs web requests. It logs POST requests just fine. However for GET requests, the length always seems to be zero. Is there a way to get the length of the GET request?

    public void Init(HttpApplication context)
    {
        context.BeginRequest += ContextBeginRequest;
    }

    private void ContextBeginRequest(object sender, EventArgs e)
    {
            string url = app.Request.RequestContext.HttpContext.Request.Url.ToString();
            string requestType = app.Request.RequestContext.HttpContext.Request.RequestType;
            long requestLength = app.Request.InputStream.Length;
            Log(url, requestType, requestLength);
    }

score 2 · Accepted Answer · answered Jun 23 '14 at 06:18

2

GET request usually don't have a message body and, thus, the Content-Length will be zero.

answered Jun 23 '14 at 06:18

Rodrick Chapman

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Thanks Rodrick, but how do I get the length of the entire request? (all the HTTP header stuff) – Fidel Jun 23 '14 at 06:35
@Fidel I can't test this now, but you could try iterating over the server variables directly. I'd start with ALL_RAW. – Rodrick Chapman Jun 23 '14 at 06:56
Thanks Rodrick, yep ServerVariables["ALL_RAW"] gets pretty damn close. However it doesn't contain the first line of the HTTP request. – Fidel Jun 23 '14 at 07:19
2

@Fidel: First line is simply `GET HTTP/1.1` (the verb can be get from Request.HttpMethod and the path/query from Request.Url.PathAndQuery) – jgauffin Jun 23 '14 at 07:37

Logging request length using IHttpModule

1 Answers1