/// <summary>
/// Constructor.
/// </summary>
/// <param name="document">XML document.</param>
/// <param name="originalLink">Original link.</param>
public PodcastChannel(XDocument document, string originalLink = null)
{
if (document?.Root == null)
{
throw new ArgumentNullException(nameof(document));
}
var channel = document.Root.Element("channel");
if (channel == null)
{
throw new ArgumentException("Invalid RSS XML");
}
if (originalLink != null)
{
ChannelUri = originalLink;
}
else
{
var atomLink = channel.Elements(Consts.Namespaces.Atom + "link").FirstOrDefault(e => "self".Equals(e.Attribute("rel")?.Value, StringComparison.OrdinalIgnoreCase) && e.Attribute("href") != null);
if (atomLink != null)
{
ChannelUri = atomLink.Attribute("href")?.Value;
}
}
Link = channel.Element("link")?.Value;
Description = channel.Element("description")?.Value;
Copyright = channel.Element("copyright")?.Value;
LastBuildDate = RssValuesHelper.ConvertDateTime(channel.Element("lastBuildDate")?.Value);
PubDate = RssValuesHelper.ConvertDateTime(channel.Element("pubDate")?.Value);
Category = channel.Element(Consts.Namespaces.Itunes + "category")?.Attribute("text")?.Value ?? channel.Element("category")?.Value;
Author = channel.Element(Consts.Namespaces.Itunes + "author")?.Value;
Summary = channel.Element(Consts.Namespaces.Itunes + "summary")?.Value;
Subtitle = channel.Element(Consts.Namespaces.Itunes + "subtitle")?.Value;
Onwer = new Owner(channel.Element(Consts.Namespaces.Itunes + "owner"));
var imageElement = channel.Element("image");
ChannelImage = imageElement != null ? new ChannelImageObj(imageElement) : new ChannelImageObj(channel.Element(Consts.Namespaces.Itunes + "image")?.Attribute("href")?.Value);
Keywords =
(channel.Element(Consts.Namespaces.Itunes + "keywords")?.Value ?? "").Split(',').Select(k => k.Trim()).Where(k => !string.IsNullOrWhiteSpace(k))
.Concat((channel.Element(Consts.Namespaces.Itunes + "keyword")?.Value ?? "").Split(',').Select(k => k.Trim()).Where(k => !string.IsNullOrWhiteSpace(k)))
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
var itemElements = channel.Elements("item").ToArray();
Episodes = new List <IPodcastEpisode>();
for (int i = 0; i < itemElements.Length; i++)
{
Episodes.Add(new Episode(i, itemElements[i]));
}
}
public Episode(int order, XElement document)
{
Order = order;
if (document != null)
{
PubDate = RssValuesHelper.ConvertDateTime(document.Element("pubDate")?.Value);
Title = document.Element("title")?.Value;
Link = document.Element("link")?.Value;
Guid = document.Element("guid")?.Value;
DescriptionHtml = document.Element("description")?.Value;
Category = document.Elements("category").Select(e => e.Value).ToList();
Author = document.Element(Consts.Namespaces.Itunes + "author")?.Value;
Subtitle = document.Element(Consts.Namespaces.Itunes + "subtitle")?.Value;
Summary = document.Element(Consts.Namespaces.Itunes + "summary")?.Value;
Duration = RssValuesHelper.ConvertDuration(document.Element(Consts.Namespaces.Itunes + "duration")?.Value);
Keywords = (document.Element(Consts.Namespaces.Itunes + "keywords")?.Value ?? "").Split(',').Select(k => k.Trim()).Where(k => !string.IsNullOrWhiteSpace(k))
.Concat((document.Element(Consts.Namespaces.Itunes + "keyword")?.Value ?? "").Split(',').Select(k => k.Trim()).Where(k => !string.IsNullOrWhiteSpace(k)))
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
ImageUrl = document.Element(Consts.Namespaces.Itunes + "image")?.Attribute("href")?.Value;
Enclosure = new EnclosureObj(document.Element("enclosure"));
}
}
