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| protected void vldCustom_ServerValidate(object source, ServerValidateEventArgs args)
{
string URLAuth = "http://www.google.com/recaptcha/api/verify";
string postString = string.Format("privatekey={0}&remoteip={1}&challenge={2}&response{3}",
"6LfXreISAAAAAIlF9Wfqo5sRnsUpL1doFCh_qp3E",
Request.ServerVariables["LOCAL_ADDR"],
Request.Form["recaptcha_challenge_field"],
Request.Form["recaptcha_response_field"] );
const string contentType = "application/x-www-form-urlencoded";
System.Net.ServicePointManager.Expect100Continue = false;
CookieContainer cookies = new CookieContainer();
HttpWebRequest webRequest = WebRequest.Create(URLAuth) as HttpWebRequest;
webRequest.Method = "POST";
webRequest.ContentType = contentType;
webRequest.CookieContainer = cookies;
webRequest.ContentLength = postString.Length;
webRequest.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1";
webRequest.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
webRequest.Referer = "https://accounts.craigslist.org";
Stream requestStream = webRequest.GetRequestStream();
StreamWriter requestWriter = new StreamWriter(requestStream);
requestWriter.Write(postString);
WebResponse response = webRequest.GetResponse();
StreamReader responseReader = new StreamReader(response.GetResponseStream(),System.Text.Encoding.UTF8,true,100);
string responseData = responseReader.ReadToEnd();
requestWriter.Close();
responseReader.Close();
webRequest.GetResponse().Close();
} |
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