/// <summary>
/// Parses a syndication feed.
/// </summary>
/// <param name="url">The URL to the feed.</param>
/// <returns>
/// Extracted articles.
/// </returns>
protected IEnumerable<Article> ParseFeed(string url)
{
var xml = Utils.GetXML(url);
var rss = SyndicationFeed.Load(xml.CreateReader());
if (rss == null)
{
yield break;
}
foreach (var item in rss.Items)
{
var article = new Article(this);
try
{
article.Title = HtmlEntity.DeEntitize(item.Title.Text);
article.Summary = Regex.Replace(HtmlEntity.DeEntitize(item.Summary.Text), @"\s*<[^>]+>\s*", string.Empty).Trim();
article.Date = item.PublishDate.DateTime;
article.Link = HtmlEntity.DeEntitize(item.Links[0].Uri.ToString());
}
catch
{
continue;
}
yield return article;
}
}
/// <summary>
/// Gets the cached articles from the last search on this service.
/// </summary>
/// <param name="query">The name of the TV show to get the cached articles for.</param>
/// <returns>List of cached articles from the last search or <c>null</c>.</returns>
public List<Article> GetCache(string query)
{
var list = new List<Article>();
var path = Path.Combine(Signature.FullPath, @"feeds\" + Utils.CreateSlug(Name, false) + @"\" + Utils.CreateSlug(query, false));
if (!File.Exists(path))
{
return list;
}
using (var fs = File.OpenRead(path))
using (var br = new BinaryReader(fs))
{
var ver = br.ReadByte();
var upd = br.ReadUInt32();
var cnt = br.ReadUInt32();
for (var i = 0; i < cnt; i++)
{
var article = new Article(this);
article.Title = br.ReadString();
article.Date = ((double)br.ReadInt32()).GetUnixTimestamp();
article.Summary = br.ReadString();
article.Link = br.ReadString();
list.Add(article);
}
}
return list;
}
