/// <summary>
/// Gets a ping back
/// </summary>
/// <param name="Request">The HttpRequest for this item</param>
/// <returns>The ping back message</returns>
public static PingBackMessage GetPingBack(HttpRequest Request)
{
PingBackMessage TempMessage = new PingBackMessage();
TempMessage.Source = "";
TempMessage.Target = "";
string RequestText = GetRequest(Request);
if (!RequestText.Contains("<methodName>pingback.ping</methodName>"))
{
return TempMessage;
}
XmlDocument XMLDocument = new XmlDocument();
XMLDocument.LoadXml(RequestText);
XmlNodeList Nodes = XMLDocument.SelectNodes("methodCall/params/param/value/string");
if (Nodes == null)
{
Nodes = XMLDocument.SelectNodes("methodCall/params/param/value");
}
if (Nodes != null)
{
TempMessage.Source = Nodes[0].InnerText.Trim();
TempMessage.Target = Nodes[1].InnerText.Trim();
}
return TempMessage;
}
/// <summary>
/// Sends a ping back
/// </summary>
/// <param name="Message">Message to send</param>
public static void SendPingBack(PingBackMessage Message)
{
if (string.IsNullOrEmpty(Message.Source) || string.IsNullOrEmpty(Message.Target))
return;
HttpWebRequest Request = (HttpWebRequest)HttpWebRequest.Create(new Uri(Message.Target));
Request.Credentials = CredentialCache.DefaultNetworkCredentials;
HttpWebResponse Response = (HttpWebResponse)Request.GetResponse();
string PingURL = (!string.IsNullOrEmpty(Response.Headers["x-pingback"])) ? Response.Headers["x-pingback"] : Response.Headers["pingback"];
Uri URIUsing;
if (!string.IsNullOrEmpty(PingURL) && Uri.TryCreate(PingURL, UriKind.Absolute, out URIUsing))
{
Request = (HttpWebRequest)HttpWebRequest.Create(URIUsing);
Request.Method = "POST";
Request.Timeout = 10000;
Request.ContentType = "text/xml";
Request.ProtocolVersion = HttpVersion.Version11;
Request.UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 6.0)";
using (XmlTextWriter Writer = new XmlTextWriter(Request.GetRequestStream(), Encoding.ASCII))
{
Writer.WriteStartDocument(true);
Writer.WriteStartElement("methodCall");
Writer.WriteElementString("methodName", "pingback.ping");
Writer.WriteStartElement("params");
Writer.WriteStartElement("param");
Writer.WriteStartElement("value");
Writer.WriteElementString("string", Message.Source);
Writer.WriteEndElement();
Writer.WriteEndElement();
Writer.WriteStartElement("param");
Writer.WriteStartElement("value");
Writer.WriteElementString("string", Message.Target);
Writer.WriteEndElement();
Writer.WriteEndElement();
Writer.WriteEndElement();
Writer.WriteEndElement();
}
Request.GetResponse();
}
}
