internal XmlDocument LoadFeedXml(Uri url)
{
XmlDocument feedXml = new XmlDocument();
CachedWebClient cachedWeb = CachedWebClient.GetInstance();
string feedString = cachedWeb.DownloadString(url, PodcastProvider.CacheHTTPHours);
// The LoadXml method of XmlDocument doesn't work correctly all of the time,
// so convert the string to a UTF-8 byte array
byte[] encodedString = Encoding.UTF8.GetBytes(feedString);
// And then load this into the XmlDocument via a stream
using (MemoryStream feedStream = new MemoryStream(encodedString))
{
feedStream.Flush();
feedStream.Position = 0;
feedXml.Load(feedStream);
}
return(feedXml);
}
private Bitmap RSSNodeImage(XmlNode node, XmlNamespaceManager namespaceMgr)
{
CachedWebClient cachedWeb = CachedWebClient.GetInstance();
try
{
XmlNode imageNode = node.SelectSingleNode("itunes:image", namespaceMgr);
if (imageNode != null)
{
Uri imageUrl = new Uri(imageNode.Attributes["href"].Value);
byte[] imageData = cachedWeb.DownloadData(imageUrl, CacheHTTPHours);
using (MemoryStream imageStream = new MemoryStream(imageData))
{
using (Bitmap streamBitmap = new Bitmap(imageStream))
{
return(new Bitmap(streamBitmap));
}
}
}
}
catch
{
// Ignore errors and try the next option instead
}
try
{
XmlNode imageUrlNode = node.SelectSingleNode("image/url");
if (imageUrlNode != null)
{
Uri imageUrl = new Uri(imageUrlNode.InnerText);
byte[] imageData = cachedWeb.DownloadData(imageUrl, CacheHTTPHours);
using (MemoryStream imageStream = new MemoryStream(imageData))
{
using (Bitmap streamBitmap = new Bitmap(imageStream))
{
return(new Bitmap(streamBitmap));
}
}
}
}
catch
{
// Ignore errors and try the next option instead
}
try
{
XmlNode imageNode = node.SelectSingleNode("media:thumbnail", namespaceMgr);
if (imageNode != null)
{
Uri imageUrl = new Uri(imageNode.Attributes["url"].Value);
byte[] imageData = cachedWeb.DownloadData(imageUrl, CacheHTTPHours);
using (MemoryStream imageStream = new MemoryStream(imageData))
{
using (Bitmap streamBitmap = new Bitmap(imageStream))
{
return(new Bitmap(streamBitmap));
}
}
}
}
catch
{
// Ignore errors
}
return(null);
}