private bool LoadXMLRSS1_0(PodcastFeed sub, string rss, uint maxItems)
{
bool success = true;
try
{
var xmlDocument = new XmlDocument();
var bytes = Encoding.UTF8.GetBytes(rss);
using (var stream = new MemoryStream(bytes))
{
xmlDocument.Load(stream);
}
var channels = xmlDocument.GetElementsByTagName("channel");
foreach (XmlElement channel in channels)
{
int count = 0;
sub.Title = GetXmlElementValue(channel, "title");
sub.Description = GetXmlElementValue(channel, "description");
sub.SiteLink = GetXmlElementValue(channel, "link");
var items = channel.GetElementsByTagName("item");
foreach (XmlNode item in items)
{
if (count++ >= maxItems)
{
break;
}
string itemTitle = GetXmlElementValue(item, "title");
PodcastEpisode it = sub.PodcastEpisodes.FirstOrDefault(i => i.Title == itemTitle);
bool noItem = it == null;
if (noItem)
{
it = new PodcastEpisode();
it.Title = itemTitle;
}
it.Title = itemTitle;
it.Description = GetXmlElementValue(item, "description");
it.Link = GetXmlElementValue(item, "link");
it.Guid = GetXmlElementValue(item, "guid");
it.PubDate = GetXmlElementValue(item, "pubDate");
it.RowNum = count;
it.ParentFeed = sub;
sub.ItemsLoaded = true;
it.IsLoaded = true;
sub.PodcastEpisodes.Add(it);
}
}
}
catch (Exception ex)
{
OnError(ex.ToString());
success = false;
}
sub.HasErrors = !success;
return(success);
}
private bool LoadXMLAtom(PodcastFeed sub, string rss, uint maxItems)
{
bool success = true;
try
{
var doc = new XmlDocument();
doc.LoadXml(rss);
var feedNode = doc["feed"];
sub.Title = GetXmlElementValue(feedNode, "title");
if (string.IsNullOrEmpty(sub.ImageUrl))
{
sub.ImageUrl = GetXmlElementValue(feedNode, "icon");
}
var entries = feedNode.GetElementsByTagName("entry");
int count = 0;
foreach (XmlNode entry in entries)
{
if (count++ >= maxItems)
{
break;
}
string itemTitle = GetXmlElementValue(entry, "title");
PodcastEpisode it = sub.PodcastEpisodes.FirstOrDefault(i => i.Title == itemTitle);
bool noItem = it == null;
if (noItem)
{
it = new PodcastEpisode();
it.Title = itemTitle;
}
it.Title = itemTitle;
it.Description = GetXmlElementValue(entry, "summary");
it.PubDate = GetXmlElementValue(entry, "updated");
it.Link = GetXmlAttribute(entry["link"], "href");
it.RowNum = count;
it.ParentFeed = sub;
sub.ItemsLoaded = true;
it.IsLoaded = true;
sub.PodcastEpisodes.Add(it);
}
}
catch (Exception ex)
{
OnError(ex.ToString());
success = false;
}
sub.HasErrors = !success;
return(success);
}
private bool LoadXMLRSS2_0(PodcastFeed sub, string rss, uint maxItems)
{
bool success = true;
try
{
var xmlDocument = new XmlDocument();
var bytes = Encoding.UTF8.GetBytes(rss);
using (var stream = new MemoryStream(bytes))
{
xmlDocument.Load(stream);
}
var channels = xmlDocument.GetElementsByTagName("channel");
foreach (XmlElement channel in channels)
{
int counter = 0;
sub.Title = GetXmlElementValue(channel, "title");
sub.SiteLink = GetXmlElementValue(channel, "link");
sub.Description = GetXmlElementValue(channel, "description");
sub.PubDate = GetXmlElementValue(channel, "pubDate");
sub.Ttl = GetXmlElementValue(channel, "ttl");
sub.LastBuildDate = GetXmlElementValue(channel, "lastBuildDate");
if (string.IsNullOrEmpty(sub.ImageUrl))
{
var imageNodes = channel.GetElementsByTagName("image");
if (imageNodes.Count > 0)
{
var imageNode = imageNodes[0];
sub.ImageUrl = GetXmlElementValue(imageNode, "url");
}
}
var items = channel.GetElementsByTagName("item");
foreach (XmlNode item in items)
{
if (counter++ >= maxItems)
{
break;
}
string itemTitle = GetXmlElementValue(item, "title");
PodcastEpisode it = sub.PodcastEpisodes.FirstOrDefault(i => i.Title == itemTitle);
bool noItem = it == null;
if (noItem)
{
it = new PodcastEpisode();
it.Title = itemTitle;
}
it.Link = GetXmlElementValue(item, "link");
if (item["enclosure"] != null)
{
it.Link = GetXmlAttribute(item["enclosure"], "url");
}
it.Description = processDescription(GetXmlElementValue(item, "description"));
it.Guid = GetXmlElementValue(item, "guid");
it.PubDate = GetXmlElementValue(item, "pubDate");
string durationString;
if (TryGetXmlElementValue(item, "itunes:duration", out durationString))
{
TimeSpan durationTimeSpan;
if (TimeSpan.TryParse(durationString, out durationTimeSpan))
{
it.DurationMs = (int)durationTimeSpan.TotalMilliseconds;
}
}
it.RowNum = counter;
it.ParentFeed = sub;
it.IsLoaded = true;
sub.ItemsLoaded = true;
if (noItem)
{
sub.PodcastEpisodes.Add(it);
}
}
}
}
catch (Exception ex)
{
OnError(ex.ToString());
success = false;
}
sub.HasErrors = !success;
return(success);
}
