static FeedSegment LoadFeed(Uri feedUrl, XElement item)
{
var rf = new FeedSegment(feedUrl: feedUrl);
foreach (XElement xe in item.Elements())
{
Func <FeedSegment, XElement, FeedSegment> action;
if (FeedElements.TryGetValue(xe.Name, out action))
{
rf = action(rf, xe);
}
}
if (String.IsNullOrWhiteSpace(rf.FeedTitle))
{
string title = null;
if (!String.IsNullOrWhiteSpace(rf.FeedDescription))
{
title = rf.FeedDescription;
}
else if (!String.IsNullOrWhiteSpace(rf.WebsiteUrl))
{
title = rf.WebsiteUrl;
}
else if (rf.FeedUrl != null)
{
title = rf.FeedUrl.AbsoluteUri;
}
rf = rf.With(feedTitle: title);
}
return(rf);
}
static FeedSegment HandleAtomLink(FeedSegment feed, XElement link)
{
string rel = link.Attribute(XNames.Atom.Rel)?.Value ?? "alternate";
string type = link.Attribute(XNames.Atom.Type)?.Value ?? "text/html";
string href = link.Attribute(XNames.Atom.Href)?.Value;
if (String.Equals(rel, "alternate", StringComparison.OrdinalIgnoreCase) &&
type.StartsWith("text/html", StringComparison.OrdinalIgnoreCase))
{
feed = feed.With(websiteUrl: link.Attribute(XNames.Atom.Href)?.Value);
}
return(feed);
}
