protected Uri DiscoverPingbackLink(string page)
{
try
{
using (SgmlReader reader = new SgmlReader())
{
while (reader.ReadToFollowing("link"))
{
XElement link = XElement.Load(reader);
if (link.Attribute("rel") != null && link.Attribute("rel").Value == "pingback")
return new Uri(link.Attribute("href").Value); //TODO: deal with base Uri?
}
}
}
catch (Exception ex)
{
LogService.Error(ex);
}
return null;
}