mirror of https://github.com/Jackett/Jackett
121 lines
6.4 KiB
C#
121 lines
6.4 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using System.Text.RegularExpressions;
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using System.Threading;
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using System.Xml.Linq;
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namespace Jackett.Common.Models
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{
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public class ResultPage
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{
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private static readonly XNamespace _AtomNs = "http://www.w3.org/2005/Atom";
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private static readonly XNamespace _TorznabNs = "http://torznab.com/schemas/2015/feed";
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// filters control characters but allows only properly-formed surrogate sequences
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// https://stackoverflow.com/a/961504
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private static readonly Regex _InvalidXmlChars = new Regex(
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@"(?<![\uD800-\uDBFF])[\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x9F\uFEFF\uFFFE\uFFFF]",
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RegexOptions.Compiled);
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private ChannelInfo ChannelInfo { get; }
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public IEnumerable<ReleaseInfo> Releases { get; set; }
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public ResultPage(ChannelInfo channelInfo)
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{
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ChannelInfo = channelInfo;
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Releases = new List<ReleaseInfo>();
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}
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/// <summary>
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/// removes any unusual unicode characters that can't be encoded into XML (eg 0x1A)
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/// </summary>
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private static string RemoveInvalidXMLChars(string text)
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{
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if (text == null)
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return null;
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return _InvalidXmlChars.Replace(text, "");
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}
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private static string XmlDateFormat(DateTime dt)
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{
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Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
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//Sat, 14 Mar 2015 17:10:42 -0400
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return $"{dt:ddd, dd MMM yyyy HH:mm:ss} " + $"{dt:zzz}".Replace(":", "");
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}
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private static XElement GetTorznabElement(string name, object value)
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{
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if (value == null)
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return null;
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return new XElement(_TorznabNs + "attr", new XAttribute("name", name), new XAttribute("value", value));
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}
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public string ToXml(Uri selfAtom)
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{
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// IMPORTANT: We can't use Uri.ToString(), because it generates URLs without URL encode (links with unicode
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// characters are broken). We must use Uri.AbsoluteUri instead that handles encoding correctly
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var xdoc = new XDocument(
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new XDeclaration("1.0", "UTF-8", null),
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new XElement("rss",
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new XAttribute("version", "1.0"),
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new XAttribute(XNamespace.Xmlns + "atom", _AtomNs.NamespaceName),
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new XAttribute(XNamespace.Xmlns + "torznab", _TorznabNs.NamespaceName),
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new XElement("channel",
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new XElement(_AtomNs + "link",
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new XAttribute("href", selfAtom.AbsoluteUri),
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new XAttribute("rel", "self"),
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new XAttribute("type", "application/rss+xml")
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),
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new XElement("title", ChannelInfo.Title),
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new XElement("description", ChannelInfo.Description),
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new XElement("link", ChannelInfo.Link.AbsoluteUri),
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new XElement("language", ChannelInfo.Language),
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new XElement("category", ChannelInfo.Category),
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from r in Releases
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select new XElement("item",
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new XElement("title", RemoveInvalidXMLChars(r.Title)),
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new XElement("guid", r.Guid.AbsoluteUri), // GUID and (Link or Magnet) are mandatory
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new XElement("jackettindexer", new XAttribute("id", r.Origin.Id), r.Origin.DisplayName),
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r.Details == null ? null : new XElement("comments", r.Details.AbsoluteUri),
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r.PublishDate == DateTime.MinValue ? new XElement("pubDate", XmlDateFormat(DateTime.Now)) : new XElement("pubDate", XmlDateFormat(r.PublishDate)),
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r.Size == null ? null : new XElement("size", r.Size),
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r.Files == null ? null : new XElement("files", r.Files),
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r.Grabs == null ? null : new XElement("grabs", r.Grabs),
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new XElement("description", RemoveInvalidXMLChars(r.Description)),
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new XElement("link", r.Link?.AbsoluteUri ?? r.MagnetUri.AbsoluteUri),
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r.Category == null ? null : from c in r.Category select new XElement("category", c),
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new XElement(
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"enclosure",
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new XAttribute("url", r.Link?.AbsoluteUri ?? r.MagnetUri.AbsoluteUri),
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r.Size == null ? null : new XAttribute("length", r.Size),
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new XAttribute("type", "application/x-bittorrent")
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),
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r.Category == null ? null : from c in r.Category select GetTorznabElement("category", c),
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GetTorznabElement("imdb", r.Imdb?.ToString("D7")),
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GetTorznabElement("imdbid", r.Imdb != null ? "tt" + r.Imdb?.ToString("D7") : null),
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GetTorznabElement("rageid", r.RageID),
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GetTorznabElement("tvdbid", r.TVDBId),
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GetTorznabElement("tmdbid", r.TMDb),
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GetTorznabElement("author", RemoveInvalidXMLChars(r.Author)),
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GetTorznabElement("booktitle", RemoveInvalidXMLChars(r.BookTitle)),
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GetTorznabElement("seeders", r.Seeders),
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GetTorznabElement("peers", r.Peers),
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GetTorznabElement("magneturl", r.MagnetUri?.AbsoluteUri),
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GetTorznabElement("infohash", RemoveInvalidXMLChars(r.InfoHash)),
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GetTorznabElement("minimumratio", r.MinimumRatio),
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GetTorznabElement("minimumseedtime", r.MinimumSeedTime),
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GetTorznabElement("downloadvolumefactor", r.DownloadVolumeFactor),
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GetTorznabElement("uploadvolumefactor", r.UploadVolumeFactor),
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GetTorznabElement("coverurl", r.Poster?.AbsoluteUri)
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)
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)
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)
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);
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return xdoc.Declaration + Environment.NewLine + xdoc;
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}
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}
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}
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