private static DateTime GetPublishedDate(RssItem item) {
if (item.PublicationDate == DateTime.MinValue && item.HasExtensions) {
var ext = item.FindExtension(DublinCoreElementSetSyndicationExtension.MatchByType) as DublinCoreElementSetSyndicationExtension;
if (ext != null) {
return ext.Context.Date;
}
}
return item.PublicationDate;
}
private string GetRssAuthors(RssItem item)
{
var dcExtension = item.FindExtension<DublinCoreElementSetSyndicationExtension>();
return dcExtension != null ? dcExtension.Context.Creator : String.Empty;
}
private static string GetRssContent(RssItem item)
{
var contentExtension = item.FindExtension<SiteSummaryContentSyndicationExtension>();
return contentExtension != null ? contentExtension.Context.Encoded : item.Description;
}
private static IEnumerable<string> GetPodcastsFromExtensions(RssItem item) {
if (item.HasExtensions) {
var extension = item.FindExtension(YahooMediaSyndicationExtension.MatchByType) as YahooMediaSyndicationExtension;
if (extension != null) {
return from c in extension.Context.Contents
let url = GetPodcastUrl(c.Url)
where ContainsPodcastExtension(url)
select url;
}
}
return Enumerable.Empty<string>();
}