http://www.jingyen.com in the life of a burnt out programmer :: jeff cheung Mon, 18 Jul 2011 18:07:15 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 http://www.jingyen.com/the-server-committed-a-protocol-violation-sectionresponsestatusline/ http://www.jingyen.com/the-server-committed-a-protocol-violation-sectionresponsestatusline/#comments Mon, 18 Jul 2011 18:04:59 +0000 Jeff Cheung http://www.jingyen.com/?p=53 I’ve reused my HttpWebRequest library over and over before when automating posts to webservers, webservices, etc. I’ve come across this error, “The server committed a protocol violation. Section=ResponseStatusLine”, many times before. In the past frameworks (1.1, specifically), all I had to do was add
<system.net>
<settings>
<httpWebRequest useUnsafeHeaderParsing="true"/>
</settings>
</system.net>
to the web.config or app.config, depending on my application. There were some instances where I had to set the KeepAlive property to false. Recently, in a project of mine, none of these things worked. The only thing that seemed to have any effect on the error was setting the ProtocolVersion back to 1.0. Weird…

public static string Post(CookieContainer incookies, out CookieContainer outcookies, string Url, string data, string Referer, out string outUrl)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
request.CookieContainer = incookies;
request.Method = WebRequestMethods.Http.Post;
request.Referer = Referer;
request.ContentType = "application/x-www-form-urlencoded";
request.ProtocolVersion = HttpVersion.Version10;
request.ContentLength = data.Length;
request.KeepAlive = false;
StreamWriter writer = new StreamWriter(request.GetRequestStream());
writer.Write(data);
writer.Close();
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
string output = reader.ReadToEnd();
outUrl = response.ResponseUri.ToString();
response.Close();
request = null;
response = null;
outcookies = incookies;
return output;
}


]]> http://www.jingyen.com/the-server-committed-a-protocol-violation-sectionresponsestatusline/feed/ 0 http://www.jingyen.com/prediction-api/ http://www.jingyen.com/prediction-api/#comments Tue, 17 May 2011 05:33:35 +0000 Jeff Cheung http://www.jingyen.com/?p=51 Really looking forward to start playing with Google’s Prediction API. I’m really hoping time will allow me to come up with something useful with it.

]]> http://www.jingyen.com/prediction-api/feed/ 0 http://www.jingyen.com/resurrection/ http://www.jingyen.com/resurrection/#comments Sun, 15 May 2011 21:28:57 +0000 Jeff Cheung http://www.jingyen.com/?p=47 After almost 6 years, I finally got around to bringing this site up back from the dead. I’ve been busy with various projects and running my own CRM company that I haven’t truly had time to focus on new technology. This new site awakening is an effort to remedy that.

]]> http://www.jingyen.com/resurrection/feed/ 0