jellyfin/MediaBrowser.Providers/TV/RemoteEpisodeProvider.cs
2013-06-19 09:54:45 -04:00

405 lines
17 KiB
C#

using System.Collections.Generic;
using System.Xml.Linq;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Common.Net;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.TV;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Net;
using System;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Xml;
using MediaBrowser.Providers.Extensions;
namespace MediaBrowser.Providers.TV
{
/// <summary>
/// Class RemoteEpisodeProvider
/// </summary>
class RemoteEpisodeProvider : BaseMetadataProvider
{
/// <summary>
/// The _provider manager
/// </summary>
private readonly IProviderManager _providerManager;
/// <summary>
/// Gets the HTTP client.
/// </summary>
/// <value>The HTTP client.</value>
protected IHttpClient HttpClient { get; private set; }
/// <summary>
/// Initializes a new instance of the <see cref="RemoteEpisodeProvider" /> class.
/// </summary>
/// <param name="httpClient">The HTTP client.</param>
/// <param name="logManager">The log manager.</param>
/// <param name="configurationManager">The configuration manager.</param>
/// <param name="providerManager">The provider manager.</param>
public RemoteEpisodeProvider(IHttpClient httpClient, ILogManager logManager, IServerConfigurationManager configurationManager, IProviderManager providerManager)
: base(logManager, configurationManager)
{
HttpClient = httpClient;
_providerManager = providerManager;
}
/// <summary>
/// Supportses the specified item.
/// </summary>
/// <param name="item">The item.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
public override bool Supports(BaseItem item)
{
return item is Episode;
}
/// <summary>
/// Gets the priority.
/// </summary>
/// <value>The priority.</value>
public override MetadataProviderPriority Priority
{
get { return MetadataProviderPriority.Third; }
}
/// <summary>
/// Gets a value indicating whether [requires internet].
/// </summary>
/// <value><c>true</c> if [requires internet]; otherwise, <c>false</c>.</value>
public override bool RequiresInternet
{
get { return true; }
}
/// <summary>
/// Gets a value indicating whether [refresh on version change].
/// </summary>
/// <value><c>true</c> if [refresh on version change]; otherwise, <c>false</c>.</value>
protected override bool RefreshOnVersionChange
{
get
{
return true;
}
}
/// <summary>
/// Gets the provider version.
/// </summary>
/// <value>The provider version.</value>
protected override string ProviderVersion
{
get
{
return "1";
}
}
/// <summary>
/// Needses the refresh internal.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="providerInfo">The provider info.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
protected override bool NeedsRefreshInternal(BaseItem item, BaseProviderInfo providerInfo)
{
// Don't proceed if there's local metadata and save local is off, as it's likely from another source
if (HasLocalMeta(item) && !ConfigurationManager.Configuration.SaveLocalMeta)
{
return false;
}
if (GetComparisonData(item) != providerInfo.Data)
{
return true;
}
return base.NeedsRefreshInternal(item, providerInfo);
}
/// <summary>
/// Gets the comparison data.
/// </summary>
/// <param name="item">The item.</param>
/// <returns>Guid.</returns>
private Guid GetComparisonData(BaseItem item)
{
var episode = (Episode)item;
var seriesId = episode.Series != null ? episode.Series.GetProviderId(MetadataProviders.Tvdb) : null;
if (!string.IsNullOrEmpty(seriesId))
{
// Process images
var seriesXmlPath = Path.Combine(RemoteSeriesProvider.GetSeriesDataPath(ConfigurationManager.ApplicationPaths, seriesId), ConfigurationManager.Configuration.PreferredMetadataLanguage.ToLower() + ".xml");
var seriesXmlFileInfo = new FileInfo(seriesXmlPath);
return GetComparisonData(seriesXmlFileInfo);
}
return Guid.Empty;
}
/// <summary>
/// Gets the comparison data.
/// </summary>
/// <param name="seriesXmlFileInfo">The series XML file info.</param>
/// <returns>Guid.</returns>
private Guid GetComparisonData(FileInfo seriesXmlFileInfo)
{
var date = seriesXmlFileInfo.Exists ? seriesXmlFileInfo.LastWriteTimeUtc : DateTime.MinValue;
var key = date.Ticks + seriesXmlFileInfo.FullName;
return key.GetMD5();
}
/// <summary>
/// Fetches metadata and returns true or false indicating if any work that requires persistence was done
/// </summary>
/// <param name="item">The item.</param>
/// <param name="force">if set to <c>true</c> [force].</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task{System.Boolean}.</returns>
public override async Task<bool> FetchAsync(BaseItem item, bool force, CancellationToken cancellationToken)
{
// Don't proceed if there's local metadata and save local is off, as it's likely from another source
if (HasLocalMeta(item) && !ConfigurationManager.Configuration.SaveLocalMeta)
{
return false;
}
cancellationToken.ThrowIfCancellationRequested();
var episode = (Episode)item;
var seriesId = episode.Series != null ? episode.Series.GetProviderId(MetadataProviders.Tvdb) : null;
if (!string.IsNullOrEmpty(seriesId))
{
var seriesXmlPath = Path.Combine(RemoteSeriesProvider.GetSeriesDataPath(ConfigurationManager.ApplicationPaths, seriesId), ConfigurationManager.Configuration.PreferredMetadataLanguage.ToLower() + ".xml");
var seriesXmlFileInfo = new FileInfo(seriesXmlPath);
var status = ProviderRefreshStatus.Success;
if (seriesXmlFileInfo.Exists)
{
var xmlDoc = new XmlDocument();
xmlDoc.Load(seriesXmlPath);
status = await FetchEpisodeData(xmlDoc, episode, seriesId, cancellationToken).ConfigureAwait(false);
}
BaseProviderInfo data;
if (!item.ProviderData.TryGetValue(Id, out data))
{
data = new BaseProviderInfo();
item.ProviderData[Id] = data;
}
data.Data = GetComparisonData(seriesXmlFileInfo);
SetLastRefreshed(item, DateTime.UtcNow, status);
return true;
}
Logger.Info("Episode provider not fetching because series does not have a tvdb id: " + item.Path);
return false;
}
/// <summary>
/// Fetches the episode data.
/// </summary>
/// <param name="seriesXml">The series XML.</param>
/// <param name="episode">The episode.</param>
/// <param name="seriesId">The series id.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task{System.Boolean}.</returns>
private async Task<ProviderRefreshStatus> FetchEpisodeData(XmlDocument seriesXml, Episode episode, string seriesId, CancellationToken cancellationToken)
{
var status = ProviderRefreshStatus.Success;
if (episode.IndexNumber == null)
{
return status;
}
var seasonNumber = episode.ParentIndexNumber ?? TVUtils.GetSeasonNumberFromEpisodeFile(episode.Path);
if (seasonNumber == null)
{
return status;
}
var usingAbsoluteData = false;
var episodeNode = seriesXml.SelectSingleNode("//Episode[EpisodeNumber='" + episode.IndexNumber.Value + "'][SeasonNumber='" + seasonNumber.Value + "']");
if (episodeNode == null)
{
if (seasonNumber.Value == 1)
{
episodeNode = seriesXml.SelectSingleNode("//Episode[absolute_number='" + episode.IndexNumber.Value + "']");
usingAbsoluteData = true;
}
}
// If still null, nothing we can do
if (episodeNode == null)
{
return status;
}
IEnumerable<XmlDocument> extraEpisodesNode = new XmlDocument[]{};
if (episode.IndexNumberEnd.HasValue)
{
var seriesXDocument = XDocument.Load(new XmlNodeReader(seriesXml));
if (usingAbsoluteData)
{
extraEpisodesNode =
seriesXDocument.Descendants("Episode")
.Where(
x =>
int.Parse(x.Element("absolute_number").Value) > episode.IndexNumber &&
int.Parse(x.Element("absolute_number").Value) <= episode.IndexNumberEnd.Value).OrderBy(x => x.Element("absolute_number").Value).Select(x => x.ToXmlDocument());
}
else
{
var all =
seriesXDocument.Descendants("Episode").Where(x => int.Parse(x.Element("SeasonNumber").Value) == seasonNumber.Value);
var xElements = all.Where(x => int.Parse(x.Element("EpisodeNumber").Value) > episode.IndexNumber && int.Parse(x.Element("EpisodeNumber").Value) <= episode.IndexNumberEnd.Value);
extraEpisodesNode = xElements.OrderBy(x => x.Element("EpisodeNumber").Value).Select(x => x.ToXmlDocument());
}
}
var doc = new XmlDocument();
doc.LoadXml(episodeNode.OuterXml);
if (!episode.HasImage(ImageType.Primary))
{
var p = doc.SafeGetString("//filename");
if (p != null)
{
if (!Directory.Exists(episode.MetaLocation)) Directory.CreateDirectory(episode.MetaLocation);
try
{
episode.PrimaryImagePath = await _providerManager.DownloadAndSaveImage(episode, TVUtils.BannerUrl + p, Path.GetFileName(p), ConfigurationManager.Configuration.SaveLocalMeta, RemoteSeriesProvider.Current.TvDbResourcePool, cancellationToken);
}
catch (HttpException)
{
status = ProviderRefreshStatus.CompletedWithErrors;
}
}
}
if (!episode.LockedFields.Contains(MetadataFields.Overview))
{
var extraOverview = extraEpisodesNode.Aggregate("", (current, xmlDocument) => current + ("\r\n\r\n" + xmlDocument.SafeGetString("//Overview")));
episode.Overview = doc.SafeGetString("//Overview") + extraOverview;
}
if (usingAbsoluteData)
episode.IndexNumber = doc.SafeGetInt32("//absolute_number", -1);
if (episode.IndexNumber < 0)
episode.IndexNumber = doc.SafeGetInt32("//EpisodeNumber");
if (!episode.LockedFields.Contains(MetadataFields.Name))
{
var extraNames = extraEpisodesNode.Aggregate("", (current, xmlDocument) => current + (", " + xmlDocument.SafeGetString("//EpisodeName")));
episode.Name = doc.SafeGetString("//EpisodeName") + extraNames;
}
episode.CommunityRating = doc.SafeGetSingle("//Rating", -1, 10);
var firstAired = doc.SafeGetString("//FirstAired");
DateTime airDate;
if (DateTime.TryParse(firstAired, out airDate) && airDate.Year > 1850)
{
episode.PremiereDate = airDate.ToUniversalTime();
episode.ProductionYear = airDate.Year;
}
if (!episode.LockedFields.Contains(MetadataFields.Cast))
{
episode.People.Clear();
var actors = doc.SafeGetString("//GuestStars");
if (actors != null)
{
// Sometimes tvdb actors have leading spaces
foreach (var person in actors.Split(new[] {'|'}, StringSplitOptions.RemoveEmptyEntries)
.Where(i => !string.IsNullOrWhiteSpace(i))
.Select(str => new PersonInfo {Type = PersonType.GuestStar, Name = str.Trim()}))
{
episode.AddPerson(person);
}
}
foreach (var xmlDocument in extraEpisodesNode)
{
var extraActors = xmlDocument.SafeGetString("//GuestStars");
if (extraActors == null) continue;
// Sometimes tvdb actors have leading spaces
foreach (var person in extraActors.Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries)
.Where(i => !string.IsNullOrWhiteSpace(i))
.Select(str => new PersonInfo { Type = PersonType.GuestStar, Name = str.Trim() }).Where(person => !episode.People.Any(x=>x.Type == person.Type && x.Name == person.Name)))
{
episode.AddPerson(person);
}
}
var directors = doc.SafeGetString("//Director");
if (directors != null)
{
// Sometimes tvdb actors have leading spaces
foreach (var person in directors.Split(new[] {'|'}, StringSplitOptions.RemoveEmptyEntries)
.Where(i => !string.IsNullOrWhiteSpace(i))
.Select(str => new PersonInfo {Type = PersonType.Director, Name = str.Trim()}))
{
episode.AddPerson(person);
}
}
var writers = doc.SafeGetString("//Writer");
if (writers != null)
{
// Sometimes tvdb actors have leading spaces
foreach (var person in writers.Split(new[] {'|'}, StringSplitOptions.RemoveEmptyEntries)
.Where(i => !string.IsNullOrWhiteSpace(i))
.Select(str => new PersonInfo {Type = PersonType.Writer, Name = str.Trim()}))
{
episode.AddPerson(person);
}
}
}
if (ConfigurationManager.Configuration.SaveLocalMeta)
{
//if (!Directory.Exists(episode.MetaLocation)) Directory.CreateDirectory(episode.MetaLocation);
//var ms = new MemoryStream();
//doc.Save(ms);
//await _providerManager.SaveToLibraryFilesystem(episode, Path.Combine(episode.MetaLocation, Path.GetFileNameWithoutExtension(episode.Path) + ".xml"), ms, cancellationToken).ConfigureAwait(false);
}
return status;
}
/// <summary>
/// Determines whether [has local meta] [the specified episode].
/// </summary>
/// <param name="episode">The episode.</param>
/// <returns><c>true</c> if [has local meta] [the specified episode]; otherwise, <c>false</c>.</returns>
private bool HasLocalMeta(BaseItem episode)
{
return (episode.Parent.ResolveArgs.ContainsMetaFileByName(Path.GetFileNameWithoutExtension(episode.Path) + ".xml"));
}
}
}