BangumiTurret/BanTur/Rss/RssParser.cs

using System;
using System.Collections.Generic;
using BanTur.Cli.Entity;
using CodeHollow.FeedReader;
using CodeHollow.FeedReader.Feeds;

namespace BanTur.Rss
{
    public static class RssParser
    {
        public static T[] Parse<T>(string xml) where T : IBangumiEntry, new()
        {
            var doc = FeedReader.ReadFromString(xml);

            var isFeed20 = doc.Type == FeedType.Rss_2_0;

            var list = new List<T>();
            foreach (var item in doc.Items)
            {
                string magnet = null;
                if (isFeed20)
                {
                    var rss20 = (Rss20FeedItem)item.SpecificItem;
                    if (rss20.Enclosure?.MediaType == "application/x-bittorrent") magnet = rss20.Enclosure.Url;
                }

                if (magnet == null) continue;

                var entry = new T
                {
                    FetchDate = DateTime.Now,
                    PubDate = item.PublishingDate,
                    Magnet = magnet,
                    Title = item.Title,
                    Url = item.Link,
                };

                list.Add(entry);
            }

            return list.ToArray();
        }
    }
}