mirror of https://github.com/Radarr/Radarr
193 lines
6.1 KiB
C#
193 lines
6.1 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.Xml.Linq;
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using NzbDrone.Common.Extensions;
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using NzbDrone.Core.Indexers.Exceptions;
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using NzbDrone.Core.Parser.Model;
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namespace NzbDrone.Core.Indexers.Newznab
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{
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public class NewznabRssParser : RssParser
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{
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public const string ns = "{http://www.newznab.com/DTD/2010/feeds/attributes/}";
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private readonly NewznabSettings _settings;
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public NewznabRssParser(NewznabSettings settings)
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{
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PreferredEnclosureMimeTypes = UsenetEnclosureMimeTypes;
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UseEnclosureUrl = true;
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_settings = settings;
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}
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public static void CheckError(XDocument xdoc, IndexerResponse indexerResponse)
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{
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var error = xdoc.Descendants("error").FirstOrDefault();
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if (error == null)
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{
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return;
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}
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var code = Convert.ToInt32(error.Attribute("code").Value);
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var errorMessage = error.Attribute("description").Value;
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if (code >= 100 && code <= 199)
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{
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throw new ApiKeyException(errorMessage);
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}
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if (!indexerResponse.Request.Url.FullUri.Contains("apikey=") && (errorMessage == "Missing parameter" || errorMessage.Contains("apikey")))
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{
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throw new ApiKeyException("Indexer requires an API key");
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}
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if (errorMessage == "Request limit reached")
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{
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throw new RequestLimitReachedException("API limit reached");
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}
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throw new NewznabException(indexerResponse, errorMessage);
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}
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protected override bool PreProcess(IndexerResponse indexerResponse)
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{
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var xdoc = LoadXmlDocument(indexerResponse);
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CheckError(xdoc, indexerResponse);
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return true;
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}
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protected override bool PostProcess(IndexerResponse indexerResponse, List<XElement> items, List<ReleaseInfo> releases)
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{
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var enclosureTypes = items.SelectMany(GetEnclosures).Select(v => v.Type).Distinct().ToArray();
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if (enclosureTypes.Any() && enclosureTypes.Intersect(PreferredEnclosureMimeTypes).Empty())
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{
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if (enclosureTypes.Intersect(TorrentEnclosureMimeTypes).Any())
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{
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_logger.Warn("{0} does not contain {1}, found {2}, did you intend to add a Torznab indexer?", indexerResponse.Request.Url, NzbEnclosureMimeType, enclosureTypes[0]);
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}
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else
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{
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_logger.Warn("{1} does not contain {1}, found {2}.", indexerResponse.Request.Url, NzbEnclosureMimeType, enclosureTypes[0]);
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}
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}
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return true;
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}
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protected override ReleaseInfo ProcessItem(XElement item, ReleaseInfo releaseInfo)
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{
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releaseInfo = base.ProcessItem(item, releaseInfo);
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releaseInfo.ImdbId = GetImdbId(item);
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return releaseInfo;
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}
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protected override string GetInfoUrl(XElement item)
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{
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return ParseUrl(item.TryGetValue("comments").TrimEnd("#comments"));
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}
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protected override string GetCommentUrl(XElement item)
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{
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return ParseUrl(item.TryGetValue("comments"));
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}
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protected override long GetSize(XElement item)
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{
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long size;
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var sizeString = TryGetNewznabAttribute(item, "size");
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if (!sizeString.IsNullOrWhiteSpace() && long.TryParse(sizeString, out size))
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{
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return size;
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}
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size = GetEnclosureLength(item);
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return size;
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}
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protected override DateTime GetPublishDate(XElement item)
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{
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var dateString = TryGetNewznabAttribute(item, "usenetdate");
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if (!dateString.IsNullOrWhiteSpace())
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{
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return XElementExtensions.ParseDate(dateString);
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}
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return base.GetPublishDate(item);
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}
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protected override string GetDownloadUrl(XElement item)
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{
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var url = base.GetDownloadUrl(item);
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if (!Uri.IsWellFormedUriString(url, UriKind.Absolute))
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{
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url = ParseUrl((string)item.Element("enclosure").Attribute("url"));
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}
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return url;
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}
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protected virtual int GetImdbId(XElement item)
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{
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var imdbIdString = TryGetNewznabAttribute(item, "imdb");
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int imdbId;
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if (!imdbIdString.IsNullOrWhiteSpace() && int.TryParse(imdbIdString, out imdbId))
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{
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return imdbId;
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}
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return 0;
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}
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protected virtual string GetImdbTitle(XElement item)
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{
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var imdbTitle = TryGetNewznabAttribute(item, "imdbtitle");
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if (!imdbTitle.IsNullOrWhiteSpace())
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{
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return CultureInfo.CurrentCulture.TextInfo.ToTitleCase(
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Parser.Parser.ReplaceGermanUmlauts(
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Parser.Parser.NormalizeTitle(imdbTitle).Replace(" ", ".")));
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}
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return string.Empty;
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}
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protected virtual int GetImdbYear(XElement item)
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{
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var imdbYearString = TryGetNewznabAttribute(item, "imdbyear");
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int imdbYear;
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if (!imdbYearString.IsNullOrWhiteSpace() && int.TryParse(imdbYearString, out imdbYear))
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{
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return imdbYear;
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}
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return 1900;
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}
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protected string TryGetNewznabAttribute(XElement item, string key, string defaultValue = "")
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{
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var attrElement = item.Elements(ns + "attr").FirstOrDefault(e => e.Attribute("name").Value.Equals(key, StringComparison.OrdinalIgnoreCase));
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if (attrElement != null)
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{
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var attrValue = attrElement.Attribute("value");
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if (attrValue != null)
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{
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return attrValue.Value;
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}
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}
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return defaultValue;
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}
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}
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}
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