jellyfin/MediaBrowser.Controller/Providers/Music/FanArtAlbumProvider.cs

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using MediaBrowser.Common.Net;
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using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.Net;
using System;
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using System.IO;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
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using System.Xml;
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namespace MediaBrowser.Controller.Providers.Music
{
/// <summary>
/// Class FanArtAlbumProvider
/// </summary>
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public class FanArtAlbumProvider : FanartBaseProvider
{
/// <summary>
/// The _provider manager
/// </summary>
private readonly IProviderManager _providerManager;
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/// <summary>
/// The _music brainz resource pool
/// </summary>
private readonly SemaphoreSlim _musicBrainzResourcePool = new SemaphoreSlim(1, 1);
/// <summary>
/// Gets the HTTP client.
/// </summary>
/// <value>The HTTP client.</value>
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protected IHttpClient HttpClient { get; private set; }
internal static FanArtAlbumProvider Current { get; private set; }
/// <summary>
/// Initializes a new instance of the <see cref="FanArtAlbumProvider"/> 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>
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public FanArtAlbumProvider(IHttpClient httpClient, ILogManager logManager, IServerConfigurationManager configurationManager, IProviderManager providerManager)
: base(logManager, configurationManager)
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{
_providerManager = providerManager;
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HttpClient = httpClient;
Current = this;
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}
/// <summary>
/// Supportses the specified item.
/// </summary>
/// <param name="item">The item.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
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public override bool Supports(BaseItem item)
{
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return item is MusicAlbum;
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}
/// <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>
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protected override bool RefreshOnVersionChange
{
get
{
return true;
}
}
/// <summary>
/// Gets the provider version.
/// </summary>
/// <value>The provider version.</value>
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protected override string ProviderVersion
{
get
{
return "12";
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}
}
/// <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)
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{
if (string.IsNullOrEmpty(item.GetProviderId(MetadataProviders.Musicbrainz)))
{
return false;
}
if (!ConfigurationManager.Configuration.DownloadMusicAlbumImages.Disc &&
!ConfigurationManager.Configuration.DownloadMusicAlbumImages.Primary)
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{
return false;
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}
return base.NeedsRefreshInternal(item, providerInfo);
}
/// <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)
{
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cancellationToken.ThrowIfCancellationRequested();
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var album = (MusicAlbum)item;
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if (string.IsNullOrEmpty(album.MusicBrainzReleaseGroupId))
{
album.MusicBrainzReleaseGroupId = await GetReleaseGroupId(item.GetProviderId(MetadataProviders.Musicbrainz), cancellationToken).ConfigureAwait(false);
}
// If still empty there's nothing more we can do
if (string.IsNullOrEmpty(album.MusicBrainzReleaseGroupId))
{
SetLastRefreshed(item, DateTime.UtcNow);
return true;
}
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var url = string.Format("http://api.fanart.tv/webservice/album/{0}/{1}/xml/all/1/1", APIKey, album.MusicBrainzReleaseGroupId);
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var doc = new XmlDocument();
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var status = ProviderRefreshStatus.Success;
using (var xml = await HttpClient.Get(new HttpRequestOptions
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{
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Url = url,
ResourcePool = FanArtResourcePool,
CancellationToken = cancellationToken,
EnableResponseCache = true
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}).ConfigureAwait(false))
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{
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doc.Load(xml);
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}
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cancellationToken.ThrowIfCancellationRequested();
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if (doc.HasChildNodes)
{
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if (ConfigurationManager.Configuration.DownloadMusicAlbumImages.Disc && !item.ResolveArgs.ContainsMetaFileByName(DISC_FILE))
{
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var node = doc.SelectSingleNode("//fanart/music/albums/album/cdart/@url");
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var path = node != null ? node.Value : null;
if (!string.IsNullOrEmpty(path))
{
Logger.Debug("FanArtProvider getting Disc for " + item.Name);
try
{
item.SetImage(ImageType.Disc, await _providerManager.DownloadAndSaveImage(item, path, DISC_FILE, ConfigurationManager.Configuration.SaveLocalMeta, FanArtResourcePool, cancellationToken).ConfigureAwait(false));
}
catch (HttpException)
{
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status = ProviderRefreshStatus.CompletedWithErrors;
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}
}
}
if (ConfigurationManager.Configuration.DownloadMusicAlbumImages.Primary && !item.ResolveArgs.ContainsMetaFileByName(PRIMARY_FILE))
{
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var node = doc.SelectSingleNode("//fanart/music/albums/album/albumcover/@url");
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var path = node != null ? node.Value : null;
if (!string.IsNullOrEmpty(path))
{
Logger.Debug("FanArtProvider getting albumcover for " + item.Name);
try
{
item.SetImage(ImageType.Primary, await _providerManager.DownloadAndSaveImage(item, path, PRIMARY_FILE, ConfigurationManager.Configuration.SaveLocalMeta, FanArtResourcePool, cancellationToken).ConfigureAwait(false));
}
catch (HttpException)
{
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status = ProviderRefreshStatus.CompletedWithErrors;
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}
}
}
}
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SetLastRefreshed(item, DateTime.UtcNow, status);
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return true;
}
/// <summary>
/// The _last music brainz request
/// </summary>
private DateTime _lastMusicBrainzRequest = DateTime.MinValue;
private readonly SemaphoreSlim _musicBrainzSemaphore = new SemaphoreSlim(1, 1);
/// <summary>
/// Gets the music brainz response.
/// </summary>
/// <param name="url">The URL.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task{XmlDocument}.</returns>
internal async Task<XmlDocument> GetMusicBrainzResponse(string url, CancellationToken cancellationToken)
{
await _musicBrainzResourcePool.WaitAsync(cancellationToken).ConfigureAwait(false);
try
{
var diff = 1500 - (DateTime.Now - _lastMusicBrainzRequest).TotalMilliseconds;
// MusicBrainz is extremely adamant about limiting to one request per second
if (diff > 0)
{
await Task.Delay(Convert.ToInt32(diff), cancellationToken).ConfigureAwait(false);
}
_lastMusicBrainzRequest = DateTime.Now;
var doc = new XmlDocument();
using (var xml = await HttpClient.Get(new HttpRequestOptions
{
Url = url,
CancellationToken = cancellationToken,
ResourcePool = _musicBrainzSemaphore,
UserAgent = "MediaBrowserServer/www.mediabrowser3.com",
EnableResponseCache = true
}).ConfigureAwait(false))
{
using (var oReader = new StreamReader(xml, Encoding.UTF8))
{
doc.Load(oReader);
}
}
return doc;
}
finally
{
_lastMusicBrainzRequest = DateTime.Now;
_musicBrainzResourcePool.Release();
}
}
/// <summary>
/// Gets the release group id internal.
/// </summary>
/// <param name="releaseEntryId">The release entry id.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task{System.String}.</returns>
private async Task<string> GetReleaseGroupId(string releaseEntryId, CancellationToken cancellationToken)
{
var url = string.Format("http://www.musicbrainz.org/ws/2/release-group/?query=reid:{0}", releaseEntryId);
var doc = await GetMusicBrainzResponse(url, cancellationToken).ConfigureAwait(false);
var ns = new XmlNamespaceManager(doc.NameTable);
ns.AddNamespace("mb", "http://musicbrainz.org/ns/mmd-2.0#");
var node = doc.SelectSingleNode("//mb:release-group-list/mb:release-group/@id", ns);
return node != null ? node.Value : null;
}
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}
}