C # HttpWebReqest - avoid POST content?

Question

When I downloaded content from my C # application to a website in the past, I used a POST request as follows:

HttpWebRequest wr = (HttpWebRequest)WebRequest.Create("http://" + this.server + "/log.php"); wr.Method = "POST"; wr.ContentType = "application/x-www-form-urlencoded"; string paramString = "v=" + this.version + "&m=" + this.message; wr.ContentLength = paramString.Length; StreamWriter stOut = new StreamWriter(wr.GetRequestStream(), System.Text.Encoding.ASCII); stOut.Write(paramString); stOut.Close(); 

My problem is that now I am in a situation where this.message will most likely contain newlines, tabs and special characters, including "&" and "=". Do I need to avoid this content. If so, how?

Answer 1

You can use HttpUtility.HtmlEncode / HtmlDecode or UrlEncode / UrlDecode if necessary.

Answer 2

Just for reference, the solution to my problem was in:

System.Web.HttpUtility.UrlEncode

which is supported by all versions of .Net framework = p

In particular, I use overloading, which takes an argument as an argument . Performing this with all parameter values ​​will make them safe for POST.

Answer 3

System.Web is deprecated - use System.Net.WebUtility instead ...