public virtual PingbackResult ReceivePingback(Id entryId, Uri sourceUrl, Uri targetUrl, string ip, Uri referrer)
{
LogService.Info("TrackbackService.ReceivePingback entryId={0} sourceUrl={1} targetUrl={2}", entryId, sourceUrl, targetUrl);
if (!IsEnabled(AtomEntryRepository.GetEntry(entryId)))
{
PingbackResult result = new PingbackResult();
result.SetFault(49, "Pingbacks are turned off.");
return result;
}
try
{
string page = string.Empty;
string contentType = "text/html";
using (WebClient client = new WebClient())
{
page = client.DownloadString(sourceUrl);
if (client.ResponseHeaders["Content-Type"] != null)
contentType = client.ResponseHeaders["Content-Type"];
}
//validate page has a link back
//if (!ContainsLink(page, RouteService.IdToWebHref(entryId, null)))
// throw new AnnotationNotAllowedException(entryId, "trackback", "it does not link back");
AtomEntry pingback = new AtomEntry();
//content
pingback.Content = new AtomContent() { Src = sourceUrl, Type = contentType };
//title
string title = null;
if (title == null) title = WebHelper.ExtractTitleForPage(page);
if (title == null) title = "Pingback";
pingback.Title = new AtomTitle() { Text = title };
//summary
string summary = WebHelper.ExtractDescriptionForPage(page);
if (summary == null) summary = string.Empty;
pingback.Summary = new AtomSummary() { Text = summary };
//author
pingback.Authors = new List<AtomPerson>() { new AtomAuthor()
{
Name = string.Empty,
Uri = referrer
} };
//add extension data?
pingback.SetValue<string>(Atom.SvcNs + "ip", ip);
pingback.AnnotationType = "pingback";
//TODO: turn this into dependency
AnnotateService.Annotate(entryId, pingback, null);
return new PingbackResult() { Success = "Success" };
}
catch (Exception ex)
{
LogService.Error(ex);
PingbackResult r = new PingbackResult();
r.SetFault(0, ex.Message);
return r;
}
}
public virtual PingbackResult SendPingback(AtomEntry entry, Uri pingUrl, Uri pageUrl)
{
LogService.Info("TrackbackService.SendPingback entryId={0} pingUrl={1} pageUrl={2}", entry.Id, pingUrl, pageUrl);
try
{
var url = new UrlHelper(Container.GetInstance<RequestContext>());
using (WebClient client = new WebClient())
{
string response = client.UploadString(pingUrl,
new XElement("methodCall",
new XElement("methodName", "pingback.ping"),
new XElement("params",
new XElement("param",
new XElement("value",
new XElement("string", url.RouteIdUrl("BlogEntry", entry.Id, AbsoluteMode.Force)))),
new XElement("param",
new XElement("value",
new XElement("string", pageUrl))))).ToString());
return new PingbackResult()
{
Xml = XElement.Parse(response.Substring(response.IndexOf('<')))
};
}
}
catch (Exception ex)
{
LogService.Error(ex);
PingbackResult r = new PingbackResult();
r.SetFault(0, ex.Message);
return r;
}
}
