Sonarr/NzbDrone.Core/Providers/DiskScanProvider.cs

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C#
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Ninject;
using NLog;
using NzbDrone.Core.Providers.Core;
using NzbDrone.Core.Repository;
using PetaPoco;
namespace NzbDrone.Core.Providers
{
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public class DiskScanProvider
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{
private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
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private static readonly string[] MediaExtentions = new[] { ".mkv", ".avi", ".wmv", ".mp4", ".mpg", ".mpeg", ".xvid", ".flv", ".mov", ".vob", ".ts", ".rm", ".rmvb", ".xvid", ".dvr-ms" };
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private readonly DiskProvider _diskProvider;
private readonly EpisodeProvider _episodeProvider;
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private readonly MediaFileProvider _mediaFileProvider;
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private readonly SeriesProvider _seriesProvider;
private readonly ExternalNotificationProvider _externalNotificationProvider;
private readonly SabProvider _sabProvider;
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[Inject]
public DiskScanProvider(DiskProvider diskProvider, EpisodeProvider episodeProvider,
SeriesProvider seriesProvider, MediaFileProvider mediaFileProvider,
ExternalNotificationProvider externalNotificationProvider, SabProvider sabProvider)
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{
_diskProvider = diskProvider;
_episodeProvider = episodeProvider;
_seriesProvider = seriesProvider;
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_mediaFileProvider = mediaFileProvider;
_externalNotificationProvider = externalNotificationProvider;
_sabProvider = sabProvider;
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}
public DiskScanProvider()
{
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}
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/// <summary>
/// Scans the specified series folder for media files
/// </summary>
/// <param name = "series">The series to be scanned</param>
public virtual List<EpisodeFile> Scan(Series series)
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{
return Scan(series, series.Path);
}
/// <summary>
/// Scans the specified series folder for media files
/// </summary>
/// <param name = "series">The series to be scanned</param>
/// <param name="path">Path to scan</param>
public virtual List<EpisodeFile> Scan(Series series, string path)
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{
_mediaFileProvider.DeleteOrphaned();
_mediaFileProvider.RepairLinks();
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if (_episodeProvider.GetEpisodeBySeries(series.SeriesId).Count == 0)
{
Logger.Debug("Series {0} has no episodes. skipping", series.Title);
return new List<EpisodeFile>();
}
var seriesFile = _mediaFileProvider.GetSeriesFiles(series.SeriesId);
CleanUp(seriesFile);
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var mediaFileList = GetVideoFiles(path);
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var importedFiles = new List<EpisodeFile>();
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foreach (var filePath in mediaFileList)
{
var file = ImportFile(series, filePath);
if (file != null)
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importedFiles.Add(file);
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}
series.LastDiskSync = DateTime.Now;
_seriesProvider.UpdateSeries(series);
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return importedFiles;
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}
public virtual EpisodeFile ImportFile(Series series, string filePath)
{
Logger.Trace("Importing file to database [{0}]", filePath);
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if (_mediaFileProvider.Exists(filePath))
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{
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Logger.Trace("[{0}] already exists in the database. skipping.", filePath);
return null;
}
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long size = _diskProvider.GetSize(filePath);
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//If Size is less than 40MB and contains sample. Check for Size to ensure its not an episode with sample in the title
if (size < 40.Megabytes() && filePath.ToLower().Contains("sample"))
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{
Logger.Trace("[{0}] appears to be a sample. skipping.", filePath);
return null;
}
var parseResult = Parser.ParsePath(filePath);
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if (parseResult == null)
return null;
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parseResult.CleanTitle = series.Title; //replaces the nasty path as title to help with logging
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parseResult.Series = series;
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var episodes = _episodeProvider.GetEpisodesByParseResult(parseResult);
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if (episodes.Count <= 0)
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{
Logger.Debug("Can't find any matching episodes in the database. Skipping {0}", filePath);
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return null;
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}
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//Make sure this file is an upgrade for ALL episodes already on disk
if (episodes.All(e => e.EpisodeFile == null || e.EpisodeFile.QualityWrapper <= parseResult.Quality))
{
Logger.Debug("Deleting the existing file(s) on disk to upgrade to: {0}", filePath);
//Do the delete for files where there is already an episode on disk
episodes.Where(e => e.EpisodeFile != null).Select(e => e.EpisodeFile.Path).Distinct().ToList().ForEach(p => _diskProvider.DeleteFile(p));
}
else
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{
//Skip this file because its not an upgrade
Logger.Trace("This file isn't an upgrade for all episodes. Skipping {0}", filePath);
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return null;
}
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var episodeFile = new EpisodeFile();
episodeFile.DateAdded = DateTime.Now;
episodeFile.SeriesId = series.SeriesId;
episodeFile.Path = Parser.NormalizePath(filePath);
episodeFile.Size = size;
episodeFile.Quality = parseResult.Quality.QualityType;
episodeFile.Proper = parseResult.Quality.Proper;
episodeFile.SeasonNumber = parseResult.SeasonNumber;
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var fileId = _mediaFileProvider.Add(episodeFile);
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//Link file to all episodes
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foreach (var ep in episodes)
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{
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ep.EpisodeFileId = fileId;
_episodeProvider.UpdateEpisode(ep);
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Logger.Debug("Linking [{0}] > [{1}]", filePath, ep);
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}
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return episodeFile;
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}
public virtual bool MoveEpisodeFile(EpisodeFile episodeFile, bool newDownload = false)
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{
if (episodeFile == null)
throw new ArgumentNullException("episodeFile");
var series = _seriesProvider.GetSeries(episodeFile.SeriesId);
var episodes = _episodeProvider.GetEpisodesByFileId(episodeFile.EpisodeFileId);
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string newFileName = _mediaFileProvider.GetNewFilename(episodes, series.Title, episodeFile.Quality);
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var newFile = _mediaFileProvider.CalculateFilePath(series, episodes.First().SeasonNumber, newFileName, Path.GetExtension(episodeFile.Path));
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//Ensure the folder Exists before trying to move it (No error is thrown if the folder already exists)
_diskProvider.CreateDirectory(newFile.DirectoryName);
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//Do the rename
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Logger.Debug("Moving [{0}] > [{1}]", episodeFile.Path, newFile.FullName);
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_diskProvider.MoveFile(episodeFile.Path, newFile.FullName);
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//Update the filename in the DB
episodeFile.Path = newFile.FullName;
_mediaFileProvider.Update(episodeFile);
//ExternalNotification
var parseResult = Parser.ParsePath(episodeFile.Path);
parseResult.Series = series;
var message = _sabProvider.GetSabTitle(parseResult);
if (newDownload)
_externalNotificationProvider.OnDownload(message, series);
else
_externalNotificationProvider.OnRename(message, series);
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return true;
}
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/// <summary>
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/// Removes files that no longer exist on disk from the database
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/// </summary>
/// <param name = "files">list of files to verify</param>
public virtual void CleanUp(IList<EpisodeFile> files)
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{
foreach (var episodeFile in files)
{
if (!_diskProvider.FileExists(episodeFile.Path))
{
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Logger.Trace("File [{0}] no longer exists on disk. removing from db", episodeFile.Path);
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//Set the EpisodeFileId for each episode attached to this file to 0
foreach (var episode in _episodeProvider.GetEpisodesByFileId(episodeFile.EpisodeFileId))
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{
episode.EpisodeFileId = 0;
_episodeProvider.UpdateEpisode(episode);
}
//Delete it from the DB
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_mediaFileProvider.Delete(episodeFile.EpisodeFileId);
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}
}
}
private List<string> GetVideoFiles(string path)
{
Logger.Debug("Scanning '{0}' for episodes", path);
var filesOnDisk = _diskProvider.GetFiles(path, SearchOption.AllDirectories);
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var mediaFileList = filesOnDisk.Where(c => MediaExtentions.Contains(Path.GetExtension(c).ToLower())).ToList();
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Logger.Trace("{0} video files were found in {1}", mediaFileList.Count, path);
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return mediaFileList;
}
}
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}