/// <summary>
/// Copies any parse errors to the channel.
/// </summary>
/// <param name="episode">The episode being created by this parser.</param>
private void SaveParseErrors(PodcastEpisode episode)
{
foreach (string error in ParseErrors)
{
episode.ParseErrors.Add(error);
}
}
/// <summary>
/// Parses the supplied RSS data.
/// </summary>
/// <returns>A <see cref="PodcastEpisode"/> instance represented by the RSS data.</returns>
public PodcastEpisode Parse()
{
PodcastEpisode episode = new PodcastEpisode();
episode.Title = GetStringFromChildElement("title", NodeToParse);
episode.Link = GetStringFromChildElement("link", NodeToParse);
episode.Description = GetStringFromChildElement("description", NodeToParse);
GetAuthor(episode);
episode.EnclosureUrl = GetStringFromChildElementAttribute("enclosure", "url", NodeToParse);
episode.EnclosureSize = GetLongFromChildElementAttribute("enclosure", "length", NodeToParse);
episode.EnclosureContentType = GetStringFromChildElementAttribute("enclosure", "type", NodeToParse);
episode.Guid = GetStringFromChildElement("guid", NodeToParse);
episode.PublishDate = GetDateTimeFromChildElement("pubDate", NodeToParse);
episode.Subtitle = GetStringFromChildElement("itunes:subtitle", NodeToParse);
episode.ITunesExplicit = GetBooleanFromChildElement("itunes:explicit", NodeToParse);
episode.Duration = GetTimeSpanFromChildElement("itunes:duration", NodeToParse);
GetImage(episode);
SaveParseErrors(episode);
if (RemoveParsedContent)
{
UnparsedContent.Seek(0, System.IO.SeekOrigin.Begin);
episode.UnparsedRssData = new StreamReader(UnparsedContent).ReadToEnd();
}
return(episode);
}
/// <summary>
/// Gets the image for the episode.
/// </summary>
/// <param name="episode">The episode being parsed.</param>
private void GetImage(PodcastEpisode episode)
{
string imageUrl = GetStringFromChildElementAttribute("itunes:image", "href", NodeToParse);
episode.Image = new CachedImage();
if (string.IsNullOrEmpty(imageUrl))
{
ParseErrors.Add("No image found");
}
else
{
episode.Image.RemoteUrl = imageUrl;
}
}
/// <summary>
/// Gets the author.
/// </summary>
/// <param name="episode">The episode being parsed.</param>
private void GetAuthor(PodcastEpisode episode)
{
string author = GetStringFromChildElement("author", NodeToParse);
string iTunesAuthor = GetStringFromChildElement("itunes:author", NodeToParse);
if (!string.IsNullOrEmpty(author))
{
episode.Author = author;
}
else if (!string.IsNullOrEmpty(iTunesAuthor))
{
episode.Author = iTunesAuthor;
}
else
{
episode.Author = string.Empty;
ParseErrors.Add("No author found");
}
}
/// <summary>
/// Parses the RSS feed.
/// </summary>
/// <returns>The <see cref="PodcastChannel"/> instance represented by the RSS data.</returns>
public PodcastChannel Parse()
{
XmlNode channelElement = ((XmlNode)NodeToParse).SelectSingleNode("rss/channel");
if (channelElement == null)
{
ParseErrors.Add("No rss/channel node found");
SaveParseErrors(_channel);
return(_channel);
}
GetTitle(channelElement);
GetLink(channelElement);
GetRssUrl(channelElement);
GetDescription(channelElement);
GetLanguage(channelElement);
GetCopyright(channelElement);
GetLastBuildDate(channelElement);
GetPublishDate(channelElement);
GetAuthor(channelElement);
GetImage(channelElement);
GetCategories(channelElement);
GetKeywords(channelElement);
GetDocuments(channelElement);
GetGenerator(channelElement);
GetManagingEditor(channelElement);
GetSubtitle(channelElement);
_channel.ITunesExplicit = GetBooleanFromChildElement("itunes:explicit", channelElement);
XmlNode ownerElement = channelElement.SelectSingleNode("itunes:owner", NamespaceManager);
if (ownerElement != null)
{
_channel.OwnerEmail = GetStringFromChildElement("itunes:email", ownerElement);
_channel.OwnerName = GetStringFromChildElement("itunes:name", ownerElement);
if (RemoveParsedContent && ownerElement.ChildNodes.Count == 0)
{
channelElement.RemoveChild(ownerElement);
SaveUnparsedContent();
}
}
if (RemoveParsedContent && channelElement.ChildNodes.Count == 0)
{
channelElement.ParentNode.RemoveChild(channelElement);
SaveUnparsedContent();
}
XmlNodeList items = channelElement.SelectNodes("item");
foreach (XmlNode item in items)
{
PodcastEpisodeParser p = new PodcastEpisodeParser(item, NamespaceManager);
p.RemoveParsedContent = RemoveParsedContent;
PodcastEpisode episode = p.Parse();
if (episode.Image.LocalPath == CachedImage.DefaultImage)
{
episode.Image = _channel.Image;
}
_channel.Episodes.Add(episode);
if (RemoveParsedContent)
{
channelElement.RemoveChild(item);
SaveUnparsedContent();
}
}
SaveParseErrors(_channel);
if (RemoveParsedContent)
{
UnparsedContent.Seek(0, SeekOrigin.Begin);
_channel.UnparsedRssData = new StreamReader(UnparsedContent).ReadToEnd();
}
return(_channel);
}
