/// <summary>
/// Sends a track back message
/// </summary>
/// <param name="Message">Message to send</param>
public static void SendTrackBack(TrackBackMessage Message)
{
Contract.Requires <ArgumentNullException>(Message != null, "Message");
GetTrackBackURL(Message);
HttpWebRequest Request = (HttpWebRequest)System.Net.HttpWebRequest.Create(Message.NotificationURL);
Request.Credentials = CredentialCache.DefaultNetworkCredentials;
Request.Timeout = 10000;
Request.Method = "POST";
Request.ContentType = "application/x-www-form-urlencoded";
Request.ContentLength = Message.ToString().Length;
Request.KeepAlive = false;
using (StreamWriter Writer = new StreamWriter(Request.GetRequestStream()))
{
Writer.Write(Message.ToString());
}
HttpWebResponse Response = (HttpWebResponse)Request.GetResponse();
string ResponseText = "";
using (System.IO.StreamReader Reader = new System.IO.StreamReader(Response.GetResponseStream()))
{
ResponseText = Reader.ReadToEnd();
}
if (Response.StatusCode == HttpStatusCode.OK)
{
if (!ResponseText.Contains("<error>0</error>"))
{
throw new InvalidOperationException(ResponseText);
}
}
else
{
throw new HttpException("HTTP Error occurred: " + Response.StatusCode.ToString());
}
}
/// <summary>
/// Sends a track back message
/// </summary>
/// <param name="Message">Message to send</param>
public static void SendTrackBack(TrackBackMessage Message)
{
if (Message == null)
throw new ArgumentException("Message can not be null.");
GetTrackBackURL(Message);
HttpWebRequest Request = (HttpWebRequest)System.Net.HttpWebRequest.Create(Message.NotificationURL);
Request.Credentials = CredentialCache.DefaultNetworkCredentials;
Request.Timeout = 10000;
Request.Method = "POST";
Request.ContentType = "application/x-www-form-urlencoded";
Request.ContentLength = Message.ToString().Length;
Request.KeepAlive = false;
using (StreamWriter Writer = new StreamWriter(Request.GetRequestStream()))
{
Writer.Write(Message.ToString());
}
HttpWebResponse Response = (HttpWebResponse)Request.GetResponse();
string ResponseText = "";
using (System.IO.StreamReader Reader = new System.IO.StreamReader(Response.GetResponseStream()))
{
ResponseText = Reader.ReadToEnd();
}
if (Response.StatusCode == HttpStatusCode.OK)
{
if (!ResponseText.Contains("<error>0</error>"))
{
throw new Exception(ResponseText);
}
}
else
{
throw new Exception("HTTP Error occurred: " + Response.StatusCode.ToString());
}
}
/// <summary>
/// Gets a trackback message
/// </summary>
/// <param name="Request">Request object</param>
/// <returns>A trackback message</returns>
public static TrackBackMessage GetTrackBack(HttpRequest Request)
{
TrackBackMessage Message = new TrackBackMessage();
Message.Title = Request.Params["title"];
Message.ID = Request.Params["id"];
Message.Excerpt = Request.Params["excerpt"];
Message.BlogName = Request.Params["blog_name"];
if (Request.Params["url"] != null)
Message.PostUrl = new Uri(Request.Params["url"].Split(',')[0]);
return Message;
}
/// <summary>
/// Gets a trackback message
/// </summary>
/// <param name="Request">Request object</param>
/// <returns>A trackback message</returns>
public static TrackBackMessage GetTrackBack(HttpRequest Request)
{
TrackBackMessage Message = new TrackBackMessage();
Message.Title = Request.Params["title"];
Message.ID = Request.Params["id"];
Message.Excerpt = Request.Params["excerpt"];
Message.BlogName = Request.Params["blog_name"];
if (Request.Params["url"] != null)
{
Message.PostUrl = new Uri(Request.Params["url"].Split(',')[0]);
}
return(Message);
}
private static void GetTrackBackURL(TrackBackMessage Message)
{
using (WebClient Client = new WebClient())
{
Client.Headers.Add("User-Agent", "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)");
string TempContent = Client.DownloadString(Message.NotificationURL);
string TempURL = TrackBackLink.Match(TempContent).Groups[1].ToString().Trim();
Uri TempURI;
Uri.TryCreate(TempURL, UriKind.Absolute, out TempURI);
Message.NotificationURL = TempURI;
TempURL = TrackBackID.Match(TempURL).Groups[1].ToString().Trim();
Message.ID = TempURL;
}
}
private static void GetTrackBackURL(TrackBackMessage Message)
{
using (WebClient Client = new WebClient())
{
Client.Headers.Add("User-Agent", "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)");
string TempContent = Client.DownloadString(Message.NotificationURL);
string TempURL = TrackBackLink.Match(TempContent).Groups[1].ToString().Trim();
Uri TempURI;
Uri.TryCreate(TempURL, UriKind.Absolute, out TempURI);
Message.NotificationURL = TempURI;
TempURL = TrackBackID.Match(TempURL).Groups[1].ToString().Trim();
Message.ID = TempURL;
}
}
