public override IEnumerable <Uri> Links()
{
var links = SelectList(Selectors.XPath("./descendant-or-self::*/@href"))?.Select(x => x.Value);
var sourceLinks = SelectList(Selectors.XPath("./descendant-or-self::*/@src"))
?.Select(x => x.Value);
var results = new HashSet <Uri>();
if (links != null)
{
foreach (var link in links)
{
if (Uri.TryCreate(link, UriKind.Absolute, out var uri) && UriUtilities.IsHttpUri(uri))
{
results.Add(uri);
}
}
}
if (sourceLinks != null)
{
foreach (var link in sourceLinks)
{
if (Uri.TryCreate(link, UriKind.Absolute, out var uri) && UriUtilities.IsHttpUri(uri))
{
results.Add(uri);
}
}
}
return(results);
}