mirror of
https://github.com/Sonarr/Sonarr.git
synced 2024-12-29 02:57:15 +02:00
564 lines
24 KiB
C#
564 lines
24 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text.RegularExpressions;
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using NLog;
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using NzbDrone.Common;
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using NzbDrone.Common.Instrumentation;
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using NzbDrone.Core.Parser.Model;
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using NzbDrone.Core.Tv;
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namespace NzbDrone.Core.Parser
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{
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public static class Parser
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{
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private static readonly Logger Logger = NzbDroneLogger.GetLogger();
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private static readonly Regex[] ReportTitleRegex = new[]
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{
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//Anime - Absolute Episode Number + Title + Season+Episode
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//Todo: This currently breaks series that start with numbers
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// new Regex(@"^(?:(?<absoluteepisode>\d{2,3})(?:_|-|\s|\.)+)+(?<title>.+?)(?:\W|_)+(?:S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:\-|[ex]|\W[ex]){1,2}(?<episode>\d{2}(?!\d+)))+)",
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// RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Anime - [SubGroup] Title Absolute Episode Number + Season+Episode
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new Regex(@"^(?:\[(?<subgroup>.+?)\](?:_|-|\s|\.))(?<title>.+?)(?:(?:\W|_)+(?<absoluteepisode>\d{2,3}))+(?:_|-|\s|\.)+(?:S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:\-|[ex]|\W[ex]){1,2}(?<episode>\d{2}(?!\d+)))+)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Anime - [SubGroup] Title Season+Episode + Absolute Episode Number
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new Regex(@"^(?:\[(?<subgroup>.+?)\](?:_|-|\s|\.))(?<title>.+?)(?:\W|_)+(?:S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:\-|[ex]|\W[ex]){1,2}(?<episode>\d{2}(?!\d+)))+)(?:\s|\.)(?:(?<absoluteepisode>\d{2,3})(?:_|-|\s|\.|$)+)+",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Anime - [SubGroup] Title Absolute Episode Number
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new Regex(@"^\[(?<subgroup>.+?)\](?:_|-|\s|\.)?(?<title>.+?)(?:[ ._-]+(?<absoluteepisode>\d{2,}))+",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Multi-Part episodes without a title (S01E05.S01E06)
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new Regex(@"^(?:\W*S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:[ex]){1,2}(?<episode>\d{1,3}(?!\d+)))+){2,}",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Multi-episode Repeated (S01E05 - S01E06, 1x05 - 1x06, etc)
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new Regex(@"^(?<title>.+?)(?:(\W|_)+S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:[ex]){1,2}(?<episode>\d{1,3}(?!\d+)))+){2,}",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Episodes without a title, Single (S01E05, 1x05) AND Multi (S01E04E05, 1x04x05, etc)
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new Regex(@"^(?:S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:\-|[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+)))+)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Episodes with a title, Single episodes (S01E05, 1x05, etc) & Multi-episode (S01E05E06, S01E05-06, S01E05 E06, etc)
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new Regex(@"^(?<title>.+?)(?:(\W|_)+S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+))(?:(?:\-|[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+)))*)\W?(?!\\)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Episodes with a title, Single episodes (S01E05, 1x05, etc) & Multi-episode (S01E05E06, S01E05-06, S01E05 E06, etc)
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new Regex(@"^(?<title>.+?)(?:\W+S?(?<season>(?<!\d+)(?:\d{1,2}|\d{4})(?!\d+))(?:[ex]|\W[ex]){1,2}(?<episode>\d{2,3}(?!\d+))(?:(?:\-|[ex]|\W[ex]){1,2}(?<episode>\d{2,3}(?!\d+)))*)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Episodes with single digit episode number (S01E1, S01E5E6, etc)
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new Regex(@"^(?<title>.*?)(?:\W?S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:\-|[ex]){1,2}(?<episode>\d{1}))+)+(\W+|_|$)(?!\\)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Anime - Title Absolute Episode Number [SubGroup]
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new Regex(@"^(?<title>.+?)(?:(?:_|-|\s|\.)+(?<absoluteepisode>\d{3}(?!\d+)))+(?:.+?)\[(?<subgroup>.+?)\](?:\.|$)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Supports 103/113 naming
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new Regex(@"^(?<title>.+?)?(?:\W?(?<season>(?<!\d+)\d{1})(?<episode>[1-9][0-9]|[0][1-9])(?!\w|\d+))+",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Mini-Series, treated as season 1, episodes are labelled as Part01, Part 01, Part.1
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new Regex(@"^(?<title>.+?)(?:\W+(?:(?:Part\W?|(?<!\d+\W+)e)(?<episode>\d{1,2}(?!\d+)))+)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Supports Season 01 Episode 03
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new Regex(@"(?:.*(?:\""|^))(?<title>.*?)(?:\W?Season\W?)(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:\W|_)(?:Episode\W)(?<episode>(?<!\d+)\d{1,2}(?!\d+))",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Supports Season only releases
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new Regex(@"^(?<title>.+?)\W(?:S|Season)\W?(?<season>\d{1,2}(?!\d+))(\W+|_|$)(?<extras>EXTRAS|SUBPACK)?(?!\\)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Episodes with airdate
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new Regex(@"^(?<title>.+?)?\W*(?<airyear>\d{4})\W+(?<airmonth>[0-1][0-9])\W+(?<airday>[0-3][0-9])",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Supports 1103/1113 naming
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new Regex(@"^(?<title>.+?)?(?:\W(?<season>(?<!\d+|\(|\[|e|x)\d{2})(?<episode>(?<!e|x)\d{2}(?!p|i|\d+|\)|\]|\W\d+)))+(\W+|_|$)(?!\\)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//4-digit episode number
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//Episodes without a title, Single (S01E05, 1x05) AND Multi (S01E04E05, 1x04x05, etc)
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new Regex(@"^(?:S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:\-|[ex]|\W[ex]|_){1,2}(?<episode>\d{4}(?!\d+|i|p)))+)(\W+|_|$)(?!\\)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Episodes with a title, Single episodes (S01E05, 1x05, etc) & Multi-episode (S01E05E06, S01E05-06, S01E05 E06, etc)
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new Regex(@"^(?<title>.+?)(?:(\W|_)+S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:\-|[ex]|\W[ex]|_){1,2}(?<episode>\d{4}(?!\d+|i|p)))+)\W?(?!\\)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled),
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//Anime - Title Absolute Episode Number
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new Regex(@"^(?<title>.+?)(?:(?:_|-|\s|\.)+e(?<absoluteepisode>\d{2,3}))+",
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RegexOptions.IgnoreCase | RegexOptions.Compiled)
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};
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private static readonly Regex[] RejectHashedReleasesRegex = new Regex[]
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{
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// Generic match for md5 and mixed-case hashes.
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new Regex(@"^[0-9a-zA-Z]{32}", RegexOptions.Compiled),
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// Format seen on some NZBGeek releases
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new Regex(@"^[A-Z]{11}\d{3}$", RegexOptions.Compiled)
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};
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//Regex to detect whether the title was reversed.
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private static readonly Regex ReversedTitleRegex = new Regex(@"\.p027\.|\.p0801\.|\.\d{2}E\d{2}S\.", RegexOptions.Compiled);
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private static readonly Regex NormalizeRegex = new Regex(@"((?:\b|_)(?<!^)(a|an|the|and|or|of)(?:\b|_))|\W|_",
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RegexOptions.IgnoreCase | RegexOptions.Compiled);
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private static readonly Regex SimpleTitleRegex = new Regex(@"480[i|p]|720[i|p]|1080[i|p]|[xh][\W_]?264|DD\W?5\W1|\<|\>|\?|\*|\:|\|",
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RegexOptions.IgnoreCase | RegexOptions.Compiled);
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private static readonly Regex AirDateRegex = new Regex(@"^(.*?)(?<!\d)((?<airyear>\d{4})[_.-](?<airmonth>[0-1][0-9])[_.-](?<airday>[0-3][0-9])|(?<airmonth>[0-1][0-9])[_.-](?<airday>[0-3][0-9])[_.-](?<airyear>\d{4}))(?!\d)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled);
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private static readonly Regex ReleaseGroupRegex = new Regex(@"-(?<releasegroup>[a-z0-9]+)\b(?<!WEB-DL|480p|720p|1080p)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled);
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private static readonly Regex MultiPartCleanupRegex = new Regex(@"\(\d+\)$", RegexOptions.Compiled);
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private static readonly Regex LanguageRegex = new Regex(@"(?:\W|_)(?<italian>\bita\b|italian)|(?<german>german\b)|(?<flemish>flemish)|(?<greek>greek)|(?<french>(?:\W|_)FR)(?:\W|_)|(?<russian>\brus\b)",
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RegexOptions.IgnoreCase | RegexOptions.Compiled);
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private static readonly Regex YearInTitleRegex = new Regex(@"^(?<title>.+?)(?:\W|_)?(?<year>\d{4})",
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RegexOptions.IgnoreCase | RegexOptions.Compiled);
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private static readonly Regex WordDelimiterRegex = new Regex(@"(\s|\.|,|_|-|=|\|)+", RegexOptions.Compiled);
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private static readonly Regex PunctuationRegex = new Regex(@"[^\w\s]", RegexOptions.Compiled);
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private static readonly Regex CommonWordRegex = new Regex(@"\b(a|an|the|and|or|of)\b\s?",
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RegexOptions.IgnoreCase | RegexOptions.Compiled);
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private static readonly Regex SpecialEpisodeWordRegex = new Regex(@"\b(part|special|edition)\b\s?",
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RegexOptions.IgnoreCase | RegexOptions.Compiled);
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public static ParsedEpisodeInfo ParsePath(string path)
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{
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var fileInfo = new FileInfo(path);
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var result = ParseTitle(fileInfo.Name);
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if (result == null)
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{
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Logger.Debug("Attempting to parse episode info using directory path. {0}", fileInfo.Directory.Name);
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result = ParseTitle(fileInfo.Directory.Name + fileInfo.Extension);
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}
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if (result == null)
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{
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Logger.Debug("Attempting to parse episode info using full path. {0}", fileInfo.FullName);
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result = ParseTitle(fileInfo.FullName);
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}
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if (result == null)
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{
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Logger.Warn("Unable to parse episode info from path {0}", path);
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return null;
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}
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return result;
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}
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public static ParsedEpisodeInfo ParseTitle(string title)
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{
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try
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{
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if (!ValidateBeforeParsing(title)) return null;
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Logger.Debug("Parsing string '{0}'", title);
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if (ReversedTitleRegex.IsMatch(title))
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{
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var titleWithoutExtension = RemoveFileExtension(title).ToCharArray();
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Array.Reverse(titleWithoutExtension);
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title = new string(titleWithoutExtension) + title.Substring(titleWithoutExtension.Length);
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Logger.Debug("Reversed name detected. Converted to '{0}'", title);
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}
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var simpleTitle = SimpleTitleRegex.Replace(title, String.Empty);
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var airDateMatch = AirDateRegex.Match(simpleTitle);
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if (airDateMatch.Success)
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{
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simpleTitle = airDateMatch.Groups[1].Value + airDateMatch.Groups["airyear"].Value + "." + airDateMatch.Groups["airmonth"].Value + "." + airDateMatch.Groups["airday"].Value;
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}
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foreach (var regex in ReportTitleRegex)
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{
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var match = regex.Matches(simpleTitle);
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if (match.Count != 0)
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{
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Logger.Trace(regex);
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try
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{
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var result = ParseMatchCollection(match);
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if (result != null)
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{
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result.Language = ParseLanguage(title);
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Logger.Debug("Language parsed: {0}", result.Language);
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result.Quality = QualityParser.ParseQuality(title);
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Logger.Debug("Quality parsed: {0}", result.Quality);
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result.ReleaseGroup = ParseReleaseGroup(title);
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Logger.Debug("Release Group parsed: {0}", result.ReleaseGroup);
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return result;
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}
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}
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catch (InvalidDateException ex)
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{
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Logger.DebugException(ex.Message, ex);
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break;
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}
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}
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}
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}
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catch (Exception e)
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{
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if (!title.ToLower().Contains("password") && !title.ToLower().Contains("yenc"))
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Logger.ErrorException("An error has occurred while trying to parse " + title, e);
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}
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Logger.Debug("Unable to parse {0}", title);
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return null;
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}
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public static string ParseSeriesName(string title)
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{
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Logger.Debug("Parsing string '{0}'", title);
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var parseResult = ParseTitle(title);
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if (parseResult == null)
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{
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return CleanSeriesTitle(title);
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}
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return parseResult.SeriesTitle;
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}
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public static string CleanSeriesTitle(this string title)
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{
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long number = 0;
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//If Title only contains numbers return it as is.
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if (Int64.TryParse(title, out number))
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return title;
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return NormalizeRegex.Replace(title, String.Empty).ToLower();
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}
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public static string CleanupEpisodeTitle(string title)
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{
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//this will remove (1),(2) from the end of multi part episodes.
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return MultiPartCleanupRegex.Replace(title, string.Empty).Trim();
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}
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public static string NormalizeEpisodeTitle(string title)
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{
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string singleSpaces = WordDelimiterRegex.Replace(title, " ");
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string noPunctuation = PunctuationRegex.Replace(singleSpaces, String.Empty);
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string noCommonWords = CommonWordRegex.Replace(noPunctuation, String.Empty);
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string normalized = SpecialEpisodeWordRegex.Replace(noCommonWords, String.Empty);
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return normalized.Trim().ToLower();
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}
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public static string ParseReleaseGroup(string title)
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{
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const string defaultReleaseGroup = "DRONE";
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title = title.Trim();
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title = RemoveFileExtension(title);
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title = title.TrimEnd("-RP");
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string group;
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var matches = ReleaseGroupRegex.Matches(title);
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if (matches.Count != 0)
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{
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group = matches.OfType<Match>().Last().Groups["releasegroup"].Value;
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}
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else
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{
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return defaultReleaseGroup;
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}
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return group;
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}
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public static string RemoveFileExtension(string title)
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{
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if (!title.ContainsInvalidPathChars())
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{
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if (MediaFiles.MediaFileExtensions.Extensions.Contains(Path.GetExtension(title).ToLower()))
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{
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title = Path.Combine(Path.GetDirectoryName(title), Path.GetFileNameWithoutExtension(title));
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}
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}
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return title;
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}
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private static SeriesTitleInfo GetSeriesTitleInfo(string title)
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{
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var seriesTitleInfo = new SeriesTitleInfo();
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seriesTitleInfo.Title = title;
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var match = YearInTitleRegex.Match(title);
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if (!match.Success)
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{
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seriesTitleInfo.TitleWithoutYear = title;
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}
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else
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{
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seriesTitleInfo.TitleWithoutYear = match.Groups["title"].Value;
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seriesTitleInfo.Year = Convert.ToInt32(match.Groups["year"].Value);
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}
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return seriesTitleInfo;
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}
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private static ParsedEpisodeInfo ParseMatchCollection(MatchCollection matchCollection)
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{
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var seriesName = matchCollection[0].Groups["title"].Value.Replace('.', ' ');
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int airYear;
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Int32.TryParse(matchCollection[0].Groups["airyear"].Value, out airYear);
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ParsedEpisodeInfo result;
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if (airYear < 1900)
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{
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var seasons = new List<int>();
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foreach (Capture seasonCapture in matchCollection[0].Groups["season"].Captures)
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{
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int parsedSeason;
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if (Int32.TryParse(seasonCapture.Value, out parsedSeason))
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seasons.Add(parsedSeason);
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}
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//If no season was found it should be treated as a mini series and season 1
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if (seasons.Count == 0)
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seasons.Add(1);
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//If more than 1 season was parsed go to the next REGEX (A multi-season release is unlikely)
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if (seasons.Distinct().Count() > 1)
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return null;
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result = new ParsedEpisodeInfo
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{
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SeasonNumber = seasons.First(),
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EpisodeNumbers = new int[0],
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AbsoluteEpisodeNumbers = new int[0]
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};
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foreach (Match matchGroup in matchCollection)
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{
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var episodeCaptures = matchGroup.Groups["episode"].Captures.Cast<Capture>().ToList();
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var absoluteEpisodeCaptures = matchGroup.Groups["absoluteepisode"].Captures.Cast<Capture>().ToList();
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//Allows use to return a list of 0 episodes (We can handle that as a full season release)
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if (episodeCaptures.Any())
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{
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var first = Convert.ToInt32(episodeCaptures.First().Value);
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var last = Convert.ToInt32(episodeCaptures.Last().Value);
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if (first > last)
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{
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return null;
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}
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var count = last - first + 1;
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result.EpisodeNumbers = Enumerable.Range(first, count).ToArray();
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}
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if (absoluteEpisodeCaptures.Any())
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{
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var first = Convert.ToInt32(absoluteEpisodeCaptures.First().Value);
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var last = Convert.ToInt32(absoluteEpisodeCaptures.Last().Value);
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if (first > last)
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{
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return null;
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}
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var count = last - first + 1;
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result.AbsoluteEpisodeNumbers = Enumerable.Range(first, count).ToArray();
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}
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if (!episodeCaptures.Any() && !absoluteEpisodeCaptures.Any())
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{
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//Check to see if this is an "Extras" or "SUBPACK" release, if it is, return NULL
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//Todo: Set a "Extras" flag in EpisodeParseResult if we want to download them ever
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if (!String.IsNullOrWhiteSpace(matchCollection[0].Groups["extras"].Value))
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return null;
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result.FullSeason = true;
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}
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}
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if (result.AbsoluteEpisodeNumbers.Any() && !result.EpisodeNumbers.Any())
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{
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result.SeasonNumber = 0;
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}
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}
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else
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{
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//Try to Parse as a daily show
|
|
var airmonth = Convert.ToInt32(matchCollection[0].Groups["airmonth"].Value);
|
|
var airday = Convert.ToInt32(matchCollection[0].Groups["airday"].Value);
|
|
|
|
//Swap day and month if month is bigger than 12 (scene fail)
|
|
if (airmonth > 12)
|
|
{
|
|
var tempDay = airday;
|
|
airday = airmonth;
|
|
airmonth = tempDay;
|
|
}
|
|
|
|
var airDate = new DateTime(airYear, airmonth, airday);
|
|
|
|
//Check if episode is in the future (most likely a parse error)
|
|
if (airDate > DateTime.Now.AddDays(1).Date || airDate < new DateTime(1970, 1, 1))
|
|
{
|
|
throw new InvalidDateException("Invalid date found: {0}", airDate);
|
|
}
|
|
|
|
result = new ParsedEpisodeInfo
|
|
{
|
|
AirDate = airDate.ToString(Episode.AIR_DATE_FORMAT),
|
|
};
|
|
}
|
|
|
|
result.SeriesTitle = CleanSeriesTitle(seriesName);
|
|
result.SeriesTitleInfo = GetSeriesTitleInfo(result.SeriesTitle);
|
|
|
|
Logger.Debug("Episode Parsed. {0}", result);
|
|
|
|
return result;
|
|
}
|
|
|
|
private static Language ParseLanguage(string title)
|
|
{
|
|
var lowerTitle = title.ToLower();
|
|
|
|
if (lowerTitle.Contains("english"))
|
|
return Language.English;
|
|
|
|
if (lowerTitle.Contains("french"))
|
|
return Language.French;
|
|
|
|
if (lowerTitle.Contains("spanish"))
|
|
return Language.Spanish;
|
|
|
|
if (lowerTitle.Contains("danish"))
|
|
return Language.Danish;
|
|
|
|
if (lowerTitle.Contains("dutch"))
|
|
return Language.Dutch;
|
|
|
|
if (lowerTitle.Contains("nlsub"))
|
|
return Language.Dutch;
|
|
|
|
if (lowerTitle.Contains("japanese"))
|
|
return Language.Japanese;
|
|
|
|
if (lowerTitle.Contains("cantonese"))
|
|
return Language.Cantonese;
|
|
|
|
if (lowerTitle.Contains("mandarin"))
|
|
return Language.Mandarin;
|
|
|
|
if (lowerTitle.Contains("korean"))
|
|
return Language.Korean;
|
|
|
|
if (lowerTitle.Contains("russian"))
|
|
return Language.Russian;
|
|
|
|
if (lowerTitle.Contains("polish"))
|
|
return Language.Polish;
|
|
|
|
if (lowerTitle.Contains("vietnamese"))
|
|
return Language.Vietnamese;
|
|
|
|
if (lowerTitle.Contains("swedish"))
|
|
return Language.Swedish;
|
|
|
|
if (lowerTitle.Contains("norwegian"))
|
|
return Language.Norwegian;
|
|
|
|
if (lowerTitle.Contains("nordic"))
|
|
return Language.Norwegian;
|
|
|
|
if (lowerTitle.Contains("finnish"))
|
|
return Language.Finnish;
|
|
|
|
if (lowerTitle.Contains("turkish"))
|
|
return Language.Turkish;
|
|
|
|
if (lowerTitle.Contains("portuguese"))
|
|
return Language.Portuguese;
|
|
|
|
var match = LanguageRegex.Match(title);
|
|
|
|
if (match.Groups["italian"].Captures.Cast<Capture>().Any())
|
|
return Language.Italian;
|
|
|
|
if (match.Groups["german"].Captures.Cast<Capture>().Any())
|
|
return Language.German;
|
|
|
|
if (match.Groups["flemish"].Captures.Cast<Capture>().Any())
|
|
return Language.Flemish;
|
|
|
|
if (match.Groups["greek"].Captures.Cast<Capture>().Any())
|
|
return Language.Greek;
|
|
|
|
if (match.Groups["french"].Success)
|
|
return Language.French;
|
|
|
|
if (match.Groups["russian"].Success)
|
|
return Language.Russian;
|
|
|
|
return Language.English;
|
|
}
|
|
|
|
private static bool ValidateBeforeParsing(string title)
|
|
{
|
|
if (title.ToLower().Contains("password") && title.ToLower().Contains("yenc"))
|
|
{
|
|
Logger.Debug("");
|
|
return false;
|
|
}
|
|
|
|
if (!title.Any(Char.IsLetterOrDigit))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
var titleWithoutExtension = RemoveFileExtension(title);
|
|
|
|
if (RejectHashedReleasesRegex.Any(v => v.IsMatch(titleWithoutExtension)))
|
|
{
|
|
Logger.Debug("Rejected Hashed Release Title: " + title);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|
|
} |